Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Confirming a new crankshaft and damper arrangement for the Bentley 60 model. | ||
| View original record | To Ev. c.to JNR. Rm/CTS.4/BA.1.1.40. Bentley 60. -------- Crankshaft and Damper. -------- With further reference to our memo Rm/CTS. / 12.39. asking you to produce a detail drawing combining the 2.75"… | ||
| scan0002 | Requesting detail drawings for the B 80 Indution Pipe, referencing schemes ECD. 1462 and 1509. | ||
| View original record | To Ev. c. Jnr. Rm/CTS.2/KP.2.1.40. B 80 Indution Pipe We are urgently in need of the necessary detail drawings for the latest available schemes. ECD. 1462 and ECD. 1509. The internal bore should be… | ||
| scan0003 | History and mounting modifications of the Lucas Dynamo on the B.60 engine. | ||
| View original record | 1044 To Rm. from Ev. c. Rm/FJH. c. Rm/RC. c. Rm/CTS. Ev.6/3.1.40. RE LUCAS DYNAMO - B.60 ENGINE. We would like to tell you the history of the Lucas Dynamo on the B.60 engine. A standard machine was… | ||
| scan0004 | New drawings for an induction system and water connections for a Stronberg Duplex Downdraught Carburetter. | ||
| View original record | TO. Rm c. Rm/PJH c. Rm/CES Ev.1/ 5. 1. 40 B. 60 ECD. 1509 Induction System for Stronberg Duplex Downdraught Carburetter. Section 5070 Inlet Pipes Section 5090 Water Connections Please receive herewith… | ||
| scan0005 | Report on camshafts, requiring road tests to confirm test bed results. | ||
| View original record | 1044 File To Rm/FD. from Rm. c. Rm/Whym. c. A. Swinton. Rm.4/BA.5.1.40. Camshafts. Herewith a report on Camshafts. We want road tests to confirm, or otherwise, the slow-running results obtained on the… | ||
| scan0006 | Test report comparing three different camshafts for the Bentley B80 engine. | ||
| View original record | To Rm. from Rm/FH. Rm/FH.1/BA.5.1.40. Bentley B80 - Camshafts. EB.4105 (Original). Long duration inlet and exhaust. (Approx. same duration.) EB.4512. Short duration inlet, exhaust duration remaining… | ||
| scan0007 | Test results and conclusions from altering camshafts to observe effects on power figures and valve bounce. | ||
| View original record | - 2 - The exhaust system used for silenced tests was B.80 twin manifolds EB.4291/2 to a standard Bentley II single silencer. Champion N.6 Sparking Plugs were used for slow running tests. These were… | ||
| scan0008 | Table detailing camshafts fitted to specific engine and chassis units, including valve timing data. | ||
| View original record | Camshafts fitted to engine Units which are in Chassis. Camshaft. Chassis No. Engine No. Valve Timing. EB.4512. 11.B.V. B.80.No.3. I.O 11.8°AT. EO.40.6° BB. I.C 32.4° AB. EC. 1.0° BT. EB.4512.… | ||
| scan0009 | Power comparison chart for two different camshafts, showing BHP, BMEP, and induction pipe depression against RPM. | ||
| View original record | CAMSHAFT COMPARISON B 80 S 113 9-12-39 POWER "ETHYL" PETROL COMP RATIO G 2 : 1 INDUCTION PIPE ExS 925 (1.600 DIA BORE) CARB. A.A.25 DUPLEX STROMBERG WITHOUT AIR SILENCER PISTONS EB 3916 (STD AEROLITE)… | ||
| scan0010 | Power performance graph comparing two different camshafts with and without a silencer, using 'Ethyl' petrol. | ||
| View original record | CAMSHAFT COMPARISON B. 80 POWER S. 114 9.12.39 "ETHYL" PETROL COMP. RATIO 6.2 : 1 INDUCTION PIPE EXS. 925 (1.600 DIA. BORE) CARB. AA.25 DUPLEX STROMBERG, WITHOUT AIR SILENCER. PISTONS E.B.3916 (STD… | ||
| scan0011 | New internal lubrication scheme for the distributor drive via camshaft drilling. | ||
| View original record | 1044 & 6119. To HFS, from Rm/CTS. c. HPS/RH. Rm/CTS.4/BA.9.1.40. Distributor Drive lubrication. _____________________________ We send you herewith PD.481, which shews a special drilling of the… | ||
| scan0012 | Request to obtain three castings of an induction pipe (EB.4995) for the B.60 Chassis Programme, with instructions for modification. | ||
| View original record | To HPS. c. to HPS/RH. Rm/CTS.12/JH.11.1.40. B.60 Chassis Programme. Will you please obtain three castings from existing patterns of the induction pipe EB.4995. The cone box should be lined with sheet… | ||
| scan0013 | Calculating the crankshaft torsional frequency for a 3-litre 6-cylinder engine. | ||
| View original record | To Ev. c. to Jnr. c. to Gry. Rm/JRS.7/JH.11.1.40. CRANKSHAFT TORSIONAL FREQUENCY 3 LITRE 6 CYL. ENGINE. With reference to your memo. Rm.9/JH.30.12.39 I have calculated the 3 per rev. critical for this… | ||
| scan0014 | Sparking plug accessibility on the B.60 Cast Iron Engine. | ||
| View original record | To Jnr. c. to Ev. Rm/Wym.11/JH.13.1.40. B.60 Cast Iron Engine. In reply to your query re accessibility of sparking plugs on the B.60 engine, we have had no trouble at all except in the case of one… | ||
| scan0015 | Chassis programme for the B.60 engine and the continuation of new 6-cylinder cast iron engines. | ||
| View original record | 16HH To HPS. c. to HPS/RH. c. to Ev. Rm/CTS.12/JH.15.1.40. Chassis Programme. B.60 Engine. Up to the start of the War, there were four new 6 cylinder cast iron engine instructed to the shop. These are… | ||
| scan0016 | The development status and required modifications for B.60 and B.80 engines. | ||
| View original record | To Ev. c. to HPS/RH. 1044 Rm/CTS.11/JH.15.1.40. Chassis Programme. Engine Section. With reference to the attached memos. to HPS. to complete the instructions to the shop for these development units,… | ||
| scan0017 | The chassis programme, specifically the progress on 8-cylinder engine units and castings for the 'Alum 8'. | ||
| View original record | 10HH? To HPS. c. to HPS/RH. c. to Ev. Rm/CTS.13/JH.15.1.40. Chassis Programme. Further to our memo. Rm/CTS.12/JH.15.1.40. There are also four 8 cylinder units instructed to the shop. The specification… | ||
| scan0018 | Secret internal memorandum regarding a discussion and subsequent letter about body costs. | ||
| View original record | Secret 1024 To Rm. from Sg. re Body Costs. Sg11/E18140 Referring to our discussion the other day and Rm.9/JH.15.1.40 I have written to Mr.Falconer as per the attached copy and also sent a copy to… | ||
| scan0019 | Letter to Falconer regarding the cost analysis of the B.V. type body and potential cost reduction strategies. | ||
| View original record | Sg9/H18140. 18th January 1940 Dear Falconer, re Body Costs. You will remember that in connection with the B.V. body type of body, it was decided to spend £6,000 or £8,000 on tools with a view to… | ||
| scan0020 | Letter discussing cost reductions and production planning for car bodies with Park Ward & Co. Ltd. | ||
| View original record | Sg9/E18140 - 2 - Having obtained the above information, we want to know what further reduction could be achieved in material, due to buying in quantities, and in labour due to reduction in man hours… | ||
| scan0021 | Blueprints for the Induction Pipe of an ECD. 1509 Induction System for a Stromberg Duplex Downdraught Carburetter. | ||
| View original record | 10HH File To. Rm c. FJH c. CFS c. EV Ev/HH. 18. 1. 40 Clan/Exp B. 60 ECD. 1509 Induction System for Stromberg Duplex Downdraught Carburetter. Section 5070 Inlet Pipes Further to our memo Ev.l./ 5. 1.… | ||
| scan0022 | Distributing new drawings for a Humber Damper, Crankshaft, and Spring Drive. | ||
| View original record | TO. Rm File Ev/HH.1/ 22. 1. 40 Clan/EXP. B. 60 PL. 90 Humber Damper with single belt. Section. 5010 Crankshaft. Section. 5020 Spring Drive Please receive herewith 4 prints of the following new… | ||
| scan0023 | Finishing process for rationalised cast iron engine units. | ||
| View original record | 1044 To HPS. c. to HPS/RH. c. to Jnr. Rm.11/JH.23.1.40. FINISH OF RATIONALISED CAST IRON ENGINE UNITS. So far we have not taken any particular care to finish off our experimental units anything like… | ||
| scan0024 | Chassis Programme for the Bentley 60 Crankshaft and Damper, requesting an order for parts. | ||
| View original record | File 10264 To HPS. c. HPS/RH. Rm/CTS.1/BA.23.1.40. CHASSIS PROGRAMME. Bentley 60 - Crankshaft and Damper. We send you herewith the scheme PL.90, which brings the front end of B.60 in line with B.80.,… | ||
| scan0025 | Instruction to replace existing pistons (EB.3916) with a new set (P.482) on an 8 cylinder Bentley B.80 No.4 unit. | ||
| View original record | 1044 To HPS. c. to HPS/RH. Rm/CTS.10/JH.24.1.40. B.80 No.4 Unit. (8 cyl. Bentley). Further to our development on the above unit. Will you please remove the existing pistons EB.3916 and fit the new set… | ||
| scan0026 | Issue of new drawings for an induction system with a Stromberg AA.25 carburetter. | ||
| View original record | JOHN File TO. Rm c.c. EV EV/HH.1./ 24. 1. 40. Clan/EXP. B. 80 ECD.1462 Induction System with Stromberg AA.25 Carburetter in accordance with Memo: Rm/CTS.2./KP.2. 1. 40 Inlet Pipes. Section 5070 Water… | ||
| scan0027 | Requesting the production of six castings for inlet pipes and water connections. | ||
| View original record | To HPS. c. to HPS/RH. 10446 Rm/CTS.1/JH.25.1.40. Chassis Programme B.80. Inlet pipes Sec.5070. water conns.Sec.5190. Further to the attached memo. ref. EV/HH.1/24.1.40. Will you please produce six… | ||
| scan0028 | Fitting rev counters to existing engines and requesting detail drawings of camshafts. | ||
| View original record | 10HH SECRET. To Ev. from Rm. Rm.12/MH.27.1.40. Regarding your Ev.5/25.1.40 we cannot see why we cannot fit rev counters to all existing engines by building up a boss on the crankcase. What we… | ||
| scan0029 | Investigation into the causes of a high-power engine running on after being switched off. | ||
| View original record | To Rm/CTS. from Rm. c. EV. c. Jnr. c. Rm/PD. HUNTING AFTER SWITCHING OFF. HIGH POWER ENGINE. During the week-end under the abnormal snow conditions it was necessary to indulge in a good deal of full… | ||
| scan0030 | Request to temporarily fit two large Burgess exhaust silencers to a test bed engine for power loss checks. | ||
| View original record | 1044 To HPS. c. HPS/RH. Rm/Wym.1/BA.1.2.40. B.80 - Exhaust System. We now have 2 large exhaust silencers of the Burgess type to replace the 4 small silencers previously fitted, and to enable us to… | ||
| scan0031 | Blueprints and parts for a Single Downtake Exhaust Manifold. | ||
| View original record | File 104H To. Rm. c.c. Ev. Ev/HH.2./ 1. 2. 40. Clan/EXP. B. 60. PL. 85. Single Downtake Exhaust Manifold. Section. 5000. Crankcase & Bearings. Please receive herewith 4 blue prints of the following… | ||
| scan0032 | Requesting the production of six sets of a simplified exhaust manifold for the Bentley 60. | ||
| View original record | To HPS. c. HPS/BH. File 10HH Rm/CTS.1/BA.2.2.40. BENTLEY 60 - PL.85 Exhaust Manifold. SECTION.5000. Crankcase & Brgs. We send you herewith drawings for the Simplified Manifold, issued in… | ||
| scan0033 | The distribution of blueprints for new Bearing Bushes and an Oil Baffle drawings. | ||
| View original record | File IOHN + 1133 TO. Rm. c.c. EV. Ev/HH.2./ 2. 2. 40. Clan/EXP. B. 40. B. 60. B. 80. L.1118. Bearing Bushes. (Suppliers drawing) Please receive herewith 3 blue prints of each of the following new… | ||
| scan0034 | Blueprints for a 6 Cylinder Cast Iron Engine Crankshaft and associated parts. | ||
| View original record | File 1044 TO. Rm. C.C. EV. Ev/HH.2./ 7. 2. 40. Clan/EXP. 6 Cylinder Cast Iron Engine 3 1/4 Bore Section. 5010. Crankshaft Please receive herewith 2 blue print of the following new LOP. and details.… | ||
| scan0035 | Issuance of blueprints for a spring drive system and its components for a cast iron engine. | ||
| View original record | 1044 TO. Rm. File EV/HH.2./ 7. 2. 40 Clan/EXP. B. 60 R.R.Type Spring Drive to suit Cast Iron Engine. PD. 439 and SCD.1043. Spring Drive. Sec: 5020. Please receive herewith blue prints of the following… | ||
| scan0036 | Alteration note for an induction pipe, detailing the addition of a boss for a throttle control lever. | ||
| View original record | TO RM. 1044 105/RE. File 9-2-40. B.GO. SEC. 5070. RE. 147 - INDUCTION PIPE. ALTERATION:- THE POSITION OF THE CORE PLUG BOSSES HAS BEEN ALTERED. A BOSS .525 DIA. HAS BEEN ADDED, 1.950 FROM ¢ OF PIPE.… | ||
| scan0037 | Alteration notice for an Induction Pipe, detailing a change to the core plug bosses. | ||
| View original record | TO RM. 1044 105/RE. File 9-2-40. B.GO. SEC. 5070. RE. 147 - INDUCTION PIPE. ALTERATION:- THE POSITION OF THE CORE PLUG BOSSES HAS BEEN ALTERED. A BOSS .525 DIA. HAS BEEN ADDED 1.950 FRONT & OF PIPE.… | ||
| scan0038 | Blueprints and parts for a B.60 Engine with a PL.90 Humber damper. | ||
| View original record | 10HH File To Rm. c. to Ev. Ev/HH.6/JH.9.2.40. B.60 Engine. PL.90 Humber damper with single belt. Section 5010. Further to our memo. Ev/HH.1.22.1.40. Please receive herewith 2 blueprints of the… | ||
| scan0039 | Heavy and light type flywheels for the B.80 engine with a Lucas starter motor. | ||
| View original record | File. 1044 + Elec. To Rm. c. to Ev/HH. Ev.5/JH.12.2.40. Flywheel for B.80 Engine with Lucas Starter Motor. We attach two prints of PL.110 showing the heavy and light type flywheels for the B.80 engine… | ||
| scan0040 | Heavy and light flywheels for the B.60 engine, including modifications to the lighter flywheel. | ||
| View original record | File 10HH To Rm. c. to EV/HH. Ev.6/JH.12.2.40. Flywheels for B.60 Engine - Lucas Starter Motor. We attach herewith two prints of PL.109 showing the heavy and light flywheels for the B.60 engine… | ||
| scan0041 | Attaching prints of a Lucas Dynamo to a B.60 engine and the associated mounting issues. | ||
| View original record | File 10HH + Elec. To Rm. c. to Ev/HH. Ev.8/JH.12.2.40. Lucas Dynamo on B.60 Engine. We attach two prints of PL.104 showing the Lucas dynamo, model C.45.PV.3,type L.1.0, Lucas drawing number 238186 for… | ||
| scan0042 | Blueprints for the B.60 engine's connecting rod and its production. | ||
| View original record | File 1044 To Rm. c. to Ev. EW/HH.2/JH.13.2.40. B.60 Engine. Connecting Rod - Sec.5030. Please receive herewith 4 blueprints of each of the following drawings together with L.O.P. RE.297 Connecting Rod… | ||
| scan0043 | Crankshaft dampers on B.60 and B.80 engines, discussing different types and development history. | ||
| View original record | 1044 File To Rm: c. to Rm/FJH. c. to Rm/CIS. c. to Rm/JRS. c. to EV/HH. Ev.3/JH.14.2.40. CRANKSHAFT DAMPERS ON B.60 & B.80 ENGINES. Attached herewith is a print of PL.103 of which you have already had… | ||
| scan0044 | Alterations and precautions for the experimental Bentley 60 Unit No. 3 engine. | ||
| View original record | 1044 & Spec! To HPS. c. HPS/RH. Bentley 60. Unit No: 3. The above unit, which is at present in the shop, is to be fitted in Chassis 9 B.V. The following alterations are required to this unit:-… | ||
| scan0045 | Photograph of a cast rocker pedestal from a Junkers engine. | ||
| View original record | 11-1044 To Jnr. c. Ev. Rm.1/ML.20.2.40. Attached is a photograph of the Cast Rocker Pedestal on the Junkers engine. I have asked Wheeler to have a look at this and give us his comments. If he could… | ||
| scan0046 | Confirming the dispatch of two blueprints for B.60 3 1/2 Litre (Ripplet) Valves & Fittings. | ||
| View original record | 10HH + 1022 File To Rm. c. to Ev. Ev/HH.8/JH.22.2.40. B.60 3 1/2 Litre (Ripplet) Valves & Fittings - Sec.5060. Please receive herewith 2 blue prints of the following :- RE.358 L.O.P. Valves and… | ||
| scan0047 | The tabulation and design of flywheels for 6-cylinder engines. | ||
| View original record | FJH 1044 + 1110 SECRET. To Rm. from Ev. c. to Rm/FJH. c. to Rm/OTS. c. to Rm/JRS. c. to Hs/NRO. c. to EvHH. Ev.1/JH.23.2.40. Flywheels. In January of this year you asked Hs/NRO. to tabulate all of the… | ||
| scan0048 | Data comparison table for flywheels used on various 6 and 8 cylinder engines. | ||
| View original record | FLYWHEEL DATA - 6 CYLINDER ALUMINIUM - B.60 AND B.80 ENGINES AND R.R. STARTER MOTOR. TABLE DATA: COLUMN 1: ENGINE: ALUM - 6 CYL. CLUTCH: 11" LONG OR B.B INERTIA-LBS.INS² OF COMPLETE FLYWHEEL: 1580… | ||
| scan0049 | Flywheel data sheet for B.60 and B.80 C.I. engines with Lucas starter motors. | ||
| View original record | FLYWHEEL DATA - B.60 AND B80-C.I ENGINES - LUCAS STARTER MOTOR LEFT SECTION: ENGINE: 8 CYLINDER - C.I.-B.80. CLUTCH: 11" LONG DRAWING NOTE: G.B.-5303 SAME TEETH AND EXTERNAL SHAPE FOR ALL TYPES. GEAR… | ||
| scan0050 | Mounting of a Lucas Dynamo on a B.80 engine and its output adequacy. | ||
| View original record | 10HH File To Rm. c. to EV/HH. EV.10/JH.23.2.40. Lucas Dynamo Mounting B.80 Engine. We attach herewith 2 copies of PL.115 showing the Lucas dynamo model C.45.PV. type L.11 mounted on the B.80 engine.… | ||
| scan0051 | The design and drawings for B.60 and B.80 H.T. Wiring Tubes. | ||
| View original record | To Rm. from Jnr. c. to EV/HH. File 1044 D 6119 Jnr.1/JH.28.2.40. B.60 & B.80 H.T. Wiring Tubes. We attach herewith two prints of PL.126 B.60 H.T. tubes for Delco Distributor, PL.127 B.80 H.T. tubes… | ||
| scan0052 | Alteration to the drilling dimensions of a B.60 Connecting Rod. | ||
| View original record | 1044 Ev./HH. Rm/CTS.15/ML.29.2.40. B.60 Connecting Rod. We note that you have altered the drilling up the rod as follows: RE.297-8. :- .156 hole. Whereas before, it was - EW.1641-2. :- .218 The Shop… | ||
| scan0053 | Request for a detailed scheme for the controls of 2 S.U. carburettors on a B.60 engine. | ||
| View original record | 10HH To Ev. from Rm. Rm.2/MH.2.3.40. 2 S.U. CARBURETTERS ON B.60. We should like a detailed scheme for these controls. Somehow this particular section has been omitted. Rm. | ||
| scan0054 | Design fault making it impossible to remove a fan belt on 8-cylinder motor cars. | ||
| View original record | 10HH To Ev. from Rm. Rm.4/MH.2.3.40. BENT FRONT PANS & FAN BELTS. It is alleged that it is impossible to remove a fan belt without taking off the slipper wheel on bent front pan 8-cylinder motor cars.… | ||
| scan0055 | Removal of balance weights and rebalancing of a crankshaft. | ||
| View original record | 1044 HPS/RH. Rm/JRS.2/ML.6.3.40. R.60. No: 2. This unit is to be run without balance weights. Will you please remove these and rebalance the crankshaft in this condition. Rm/JRS. | ||
| scan0056 | Confirming the need for a light type flywheel for a Bentley (9.B.V.) fitted with a B.60 Cast Iron engine. | ||
| View original record | Handwritten: C.T.S. (crossed out) Handwritten: 1044 Handwritten: file (B60 engine) To HH. from Ev. c. to Rm. c. to HPS/RH. re Flywheel for 9.B.V. We confirm our conversation of yesterday re the new… | ||
| scan0057 | Difficulty of removing the fan belt on chassis fitted with the B.80 engine. | ||
| View original record | SECRET. 10 HH To Ev/HH. from Ev. c. to Rm. c. to Rm/Wym. Ev.1/JH.8.3.30. re Chassis with B.80 Engine. It is reported that on all cars with the B.80 engine and the bent front pan, it is impossible to… | ||
| scan0058 | Blueprints for top and bottom water connections and associated parts. | ||
| View original record | 10HH & 1022 File To. Rm. C. Ev. Ev/HH.1/ 8. 3. 40 Clan/EXP. B. 60 (RIFFLET) ECD. 1487. Top Water Connection ECD. 1492. Bottom Water Connection Please receive herewith blueprints of the following… | ||
| scan0059 | Machining difficulties and design considerations for Filler Cap EB.5028. | ||
| View original record | To. HPS/Cy. c. Rm. Ev/HH.3./ 12. 3. 40 Clan/EXP FILLER CAP EB.5028. In reply to your memo HPS/Cy 1/1c. 14. 2. 40 re difficulties in maching the above piece. This detail has been specified for… | ||
| scan0060 | Enquiry about a filler cap, a mislaid previous memo, and actions to avoid further hold-ups. | ||
| View original record | 1044. ? To Rm. Ev/HH.2./ 12. 3. 40. Clan/EXP I have had enquiries from HPS/Cy by phone re Filler Cap EB. 5028. The Memo addressed to me dated 14. 2. 40 has apparently been mislaid in the mail and… | ||
| scan0061 | List of instructions for modifying and testing the B.60 No: 2 engine. | ||
| View original record | HPS/RH. 1044 Rm/JRS.17/ML.12.3.40. B.60. No: 2. Re Rm/JRS.8/ML.4.3.40 and 2/ML.6.3.40. please carry out the work in the following order: (1) Remove balance weights and rebalance crankshaft. (2) Modify… | ||
| scan0062 | Torsional vibration tests on the B.60 model with and without a rubber coupling. | ||
| View original record | 1044 To Ev. from Rm/JRS. c. Jnr. Rm/JRS.10/MH.12.3.40. TORSIONAL VIBRATION ON B.60. In order to distinguish between the two modes of vibration occurring in B.60. Tests were carried out with a rubber… | ||
| scan0063 | Comparison between the Humber damper and the Studebaker damper, noting the poor results of the latter on the test bed. | ||
| View original record | -2- Rm/JRS.10/MH.12.3.40. It would be interesting to compare the Humber damper with the Studebaker on the road. The Humber has never been tried on a car of ours and whilst the Studebaker has been… | ||
| scan0064 | Blueprint graph of the Wraith spring drive, comparing performance in 3rd gear with and without a flexible coupling in the prop-shaft. | ||
| View original record | B 60 NO 2 WRAITH SPRING DRIVE --- 3RD. GEAR (DIRECT) WITH FLEXIBLE COUPLING IN PROP - SHAFT — " " " WITHOUT " " 1ST ORDER 1/2 ORDER -1 1/2 ORDER ENGINE R P M AMPLITUDE DEGREES .2 .4 .6 .8 1000 2000… | ||
| scan0065 | Graph showing low frequency vibration correction for a B.60 No 2 Wraith Spring Drive. | ||
| View original record | B.60 NO 2 WRAITH SPRING DRIVE CORRECTED FOR LOW FREQUENCY VIBRATION ENGINE R.P.M AMPLITUDE DEGREES FIG. 2 RH/J.R.S | ||
| scan0066 | Graph comparing the performance of Studebaker and Humber dampers by plotting amplitude versus engine RPM. | ||
| View original record | B 60 STUDEBAKER DAMPER 45-50 RUBBERS HUMBER DAMPER 50 LBS INS FRICTION TORQUE ENGINE R.P.M. AMPLITUDE DEGREES FIG. 3 | ||
| scan0067 | Issue of two blueprints for the RE.618 camshaft for the B.60 Ripplet. | ||
| View original record | 1044 & 1022 File To Rm. c. to Ev. EV/HH.1/JH.13.3.40. B.60 Ripplet. Sec.5090 - Camshaft. Please receive herewith 2 blue prints of the following :- RE.618 Camshaft. This camshaft which is for use on… | ||
| scan0068 | Explaining a delay in answering a query regarding the production of filler cap EB.5028. | ||
| View original record | HPS. Rm.2/ML.14.340 FILLER CAP EB.5028. This query has not been answered before because when I investigated the matter I found that Cy. appeared to have failed to appreciate that the filler cap was… | ||
| scan0069 | Unsatisfactory rear brake life on 8-cylinder cars and proposed solutions. | ||
| View original record | 1044 + 1029. To Ev. from Rm. c. Rm/MHR. Rm.2/MH.14.3.40. REAR BRAKES ON 8-CYLINDER CARS. So far the rear brake life has not been satisfactory on any 8-cylinder car which we have produced, and which… | ||
| scan0070 | Suggestions for modified designs, referencing a rationalised range of pieces and a four-shoe scheme. | ||
| View original record | -2- Rm.2/MH.14.3.40. Our suggestions for modified designs are that the minimum possible departure should be made from the rationalised range of pieces. We believe that a four-shoe scheme is in… | ||
| scan0071 | Brake and lining wear for three specific car models with hydraulic front and Girling rear systems. | ||
| View original record | COPY. To Rm/MHR. c. to Rm/AFM. Rm/FD.6/JH.23.1.40. Brakes & Lining Wear. In the attached lists we show the brake lining wear of 11.B.V, 33.G.VII and 12.B.V. these cars are all fitted up with Hydraulic… | ||
| scan0072 | The performance, wear, and maintenance of the hydraulic front and Girling rear brake system on chassis 11.B.V. | ||
| View original record | -3- Brakes on 11.B.V. Hydraulic Front, Girling Rear. When Lp. first started running this car the brakes were coupled up direct, and were reported as having too much front braking, and also too much… | ||
| scan0073 | Update to a report on brake wear inspection, mileage, and car weight. | ||
| View original record | -4- Rm/FD.6/JH.23.1.40. Since writing this report, we have had a further chance to check the brakes at speedometer reading 13628 and we find that during the last 1,934 miles which owing to weather… | ||
| scan0074 | Comparative test report on brake wear for a car (33.G.VII) with Hydraulic Front and Girling Rear brakes. | ||
| View original record | -5- Rm/FD.6/JH.23.1.40. Brakes on 33.G.VII. Hydraulic Front Girling Rear. This car is being run by Hs. and his Chauffeur and is an ideal comparative test with customers' conditions. We show below the… | ||
| scan0075 | Confirmation to order parts for a roller chain front-end drive for B.60 engines, as an alternative to the morse chain. | ||
| View original record | 1044 Rm/JRS. c. Rm/CTS. Rm.15/ML.18.3.40. This is to confirm that you are going to take up the alternative of a roller chain front end drive for B.60 engines, and order the necessary sprockets and… | ||
| scan0076 | Rationalising front-end drives for the B.60 engine, specifically regarding the spring drive. | ||
| View original record | Ev. c. JNR. Rm.14/ML.18.3.40. RATIONALISED FRONT END DRIVES. B.60. We have got a lot of pictures of what is happening to the crankshaft of B.60 engines but so far have made little or no progress with… | ||
| scan0077 | Alteration notice regarding the removal of surplus metal from the exhaust port of a B40 crankcase and cylinders casting. | ||
| View original record | To Rm. 116/RE 1074 18th March Flu B40 Section 5000 RE 107. Crankcase and Cylinders. Sheet 2. Alteration Section thro' Exhaust Port M/c shown to remove surplus metal. Reason. Due to castings "building… | ||
| scan0078 | Cover memo for the specification of the B.80 Aluminium 8 Cylinder 3 1/4 Bore Engine. | ||
| View original record | 1044 1298 To Rm. c. to Ev. Ev/HH.4/JH.18.3.40. SPECIFICATION. B.80 ALUM. 8 CYL. 3 1/4 BORE ENGINE. Please receive herewith 3 blue prints of the abovespecification: We have brought this up to date with… | ||
| scan0079 | Providing blueprints for a water gallery and cylinder head joint washer related to the B.40 crankcase and bearings. | ||
| View original record | TO Rm. c. to Ev. 1044, D. 1117 File Ev/HH.8/JH.18.3.40. B.40 CRANKCASE AND BEARINGS SEC.5000. Further to our memo. Ev/HH.3/JH.22.2.40. Please receive herewith 2 blue prints of the following details :-… | ||
| scan0080 | Specification document for a B.80 8 cylinder 3 1/2 Bore C.I. Engine, noting modifications and blueprint issuance. | ||
| View original record | To Rm. c. to Ev. File 1044 1298 Ev/HH.5/JH.18.3.40. Specification. B.80 8 cyl. 3 1/2 Bore C.I. Engine. Please receive herewith 3 blueprints of the above specification. We have based this specification… | ||
| scan0081 | Prints for new details concerning the Flywheel, Clutch, and Clutch Casing for the R.H. Senior Range B.60 Ripplet. | ||
| View original record | To. Rm G. Ev. File 1046 1110 Ev/HH.15/JH. 18. 3. 40. R.H. Senior Range B.60 Ripplet Section 6000 Flywheel & Clutch Section 6010 Clutch Casing Schemes. GCD. 1499, PL.38 and 112. Further to our memos,… | ||
| scan0082 | Specifications for the B.40 4 Cylinder and B.60 6 Cylinder C.I. engines. | ||
| View original record | To Rm. c. to Ev. File 1064 & 1298 EV/HH.7/JH.18.3.40. SPECIFICATIONS. B.40 4 Cylinder 75 m/m Bore C.I. Engine. B.60 6 Cylinder 3 1/2 bore C.I. Engine. Please receive herewith 3 blueprints of… | ||
| scan0083 | Instruction memo regarding new blueprints for B.60 3¼ Bore ignition wiring and fittings. | ||
| View original record | 104H To Rm. c. to Ev. File Ev/HH.1/JH.19.3.40. B.60 3¼ Bore. Wire and Fittings - Section 5210. PL.126 Ignition H.T. Wiring Delco. Dist: Please receive herewith blueprints of the following new… | ||
| scan0084 | New blueprints for H.T. Ignition Wiring parts and instructing on their implementation. | ||
| View original record | File 1044 & 6119 To Rm. c, to Ev. Ev/HH.2/JH.19.3.40. B.80. Wire and Fittings - Section 5210. PL.127. Ignition H.T. Wiring Delco Dist: Please receive herewith blueprints of the following new drawings… | ||
| scan0085 | New drawings and blueprints for the B.60 engine's ignition H.T. wiring. | ||
| View original record | 1044 d 6119 To Rm. c. to Ev. Ev/HH.1/JH.19.3.40. B.60 3 1/4 Bore. Wire and Fittings - Section 5210. PL.126 Ignition H.T. Wiring Delco. Dist: Please receive herewith blueprints of the following new… | ||
| scan0086 | Instruction memo regarding a new Wheelcase LoP, cancelling a previous instruction. | ||
| View original record | To. Rm. File 1044 & 1375 EV/HH.1./ 19. 3. 40 Clan/EXP. B. 40 Wheelcase. Sec: 5180. Please receive herewith the following new LoP. to be instructed up for the above. RE. 689 Wheelcase LoP. This cancels… | ||
| scan0087 | Fitting of an A.C. air silencer to the B.60 engine with a Stromberg carburetter. | ||
| View original record | 1044 & 1297 SECRET. To Rm. c. to Ev/HH. File Ev.8/JH.19.3.40. A.C. Air Silencer for B.60 Engine with Stromberg Down-Draught Carburetter. We attach herewith 2 prints of PL.151 2 sheets, showing an air… | ||
| scan0088 | Accompanying preliminary blueprints for a B. 60, 3.500 Bore Crankcase & Cylinders. | ||
| View original record | 1044 to 1117 File To. Rm. o.- EV. Ev/HH.4./ 20. 3. 40. Clan/EXP. B. 60. 3.500 Bore Crankcase & Cylinders. Sec: 5000 Please receive herewith blueprints of the following. RE. 693 Crankcase & Cylinders (… | ||
| scan0089 | The distribution of blueprints for B.40 Engine inlet pipes. | ||
| View original record | 1044 File To. Rm. EV Ev/HH.4./ 20. 3. 40. Clan/EXP. B. 40. Engine. Inlet Pipes. Section 5070. Please receive herewith 4 blueprints of the following. RE. 694 Inlet Pipe RE. 696 Inlet Pipe Please note… | ||
| scan0090 | Blueprints for a B.60 75 M/M Bore Crankcase & Cylinders. | ||
| View original record | 1044 + 117 To. Rm. c.c. Ev. File Ev/HH.1./ 20. 3. 40. Clan/EXP B. 60. 75 M/M Bore. Crankcase & Cylinders. Section 5000 Please receive herewith blue prints of the following:- RE. 269 Crankcase &… | ||
| scan0091 | Issue of blueprints for the B.60 engine crankcase and cylinders with a 3.750 bore. | ||
| View original record | WHH To. Rm c.c. EV. File EV/HH.3./ 28 . 3 . 40 Clan/EXP. B. 60. 3.750 Bore Crankcase & Cylinders Sec: 5000. Please receive herewith blue prints of the following. RE. 136 Crankcase & Cylinders ( 2… | ||
| scan0092 | Request for a scheme and drawings for a roller chain alternative for the B.60 Camshaft Drive. | ||
| View original record | 1044. To Ev. (Duffield) c. to Ev/HH.(Clan Exptl) Rm/JRS.5/JH. 21.3.40. B.60 Camshaft Drive. As an alternative to the Morse type chain drive we wish to try a roller chain. Will you please produce a… | ||
| scan0093 | Requesting a detailed drawing for a 3 1/4' bore dry liner aluminium engine. | ||
| View original record | 1044 Ev. c. Ev/HH. Rm.2/ML.21.3.40. 3 1/4" BORE DRY LINER ALUMINIUM ENGINES. The one engine of the senior rationalised range which has not yet been detailed is a dry liner aluminium block with no… | ||
| scan0094 | The production of castings for B.40 and 2-cylinder engines, listing the available patterns. | ||
| View original record | file 1044 To HPS. c. to HPS/RH. c. to Knagg (Iron Foundry). c. to Wheeler (Alum Foundry). c. to Walker (Pattern Shop) Re/CRS.11/JE.27.3.40. B.40 Engine (75 m/m). The necessary patterns are available… | ||
| scan0095 | Advice note from The Pattern & Model Manufacturing Co. detailing the despatch of patterns and coreboxes for an H8 Engine. | ||
| View original record | COPY. ADVICE NOTE. THE PATTERN & MODEL MANUFACTURING CO HARPER ROAD, COVENTRY. Messrs. Rolls-Royce Limited. Please note the following goods have been despatched to you today:- 1. First class Honduras… | ||
| scan0096 | Copy of an advice note from a supplier detailing despatched patterns and moulding box parts. | ||
| View original record | COPY. ADVICE NOTE. THE PATTERN & MODEL MANUFACTURING CO. HARPER ROAD, COVENTRY. 18th. March 1940. Messrs. Rolls-Royce Limited, Derby. Please note the following goods have been despatched to you… | ||
| scan0097 | Advice note from The Pattern & Model Manufacturing Co detailing dispatched patterns and coreboxes for engine components. | ||
| View original record | COPY. ADVICE NOTE. THE PATTERN & MODEL MANUFACTURING CO HARPER ROAD, COVENTRY. 18th. March. 1940. Messrs. Rolls-Royce Limited. Please note the following goods have been despatched to you today :- 7.… | ||
| scan0098 | Request to redesign the B.60 Camwheel to have a lower moment of inertia, comparing it to a Studebaker wheel. | ||
| View original record | 1044 To Jar.(Park Leys) c. to Rm/CTS. Rm/JRS.9/JH.28.3.40. B.60 Camwheel. The B.60 camwheel has a moment of inertia of 9.34 lbs.in.sq. and a weight of 2 lbs. while the Studebaker wheel has a moment of… | ||
| scan0099 | Design of controls for the B.60 engine and modifications to its carburetter. | ||
| View original record | 1064 To Rm. c. to Rm/CTS. c. to Rm/Wym. c. to Rm/TAS. Ev.17/JH.29.3.40. Controls for B.60 Engine. We are engaged on a design for the controls for the B.60 engine to supercede those already designed… | ||
| scan0100 | Clarifying the requirement to fit the petrol feed pipe in addition to the engine controls. | ||
| View original record | -2- Ev.17/JH.29.3.40. It will be recalled that besides being asked to do the engine controls we have to do the petrol feed pipe from the frame to the mechanical pump and from the latter to the… | ||
| scan0101 | The distribution of blueprints for a Lucas Dynamo Mounting and an experimental bracket. | ||
| View original record | File 1044 To Rm. c. to Ev. Ev/HH.12/JH.29.3.40. B.80 PL.115. Lucas Dynamo Mounting. Sec.5000 - Crankcase & Cylinders. Please receive herewith 2 blue prints of the following :- RE.675 Bracket - dynamo… | ||
| scan0102 | Addition of a pipe for timing gear lubrication on engine oil fittings. | ||
| View original record | 1044 To Rm. c. to Ev. File Ev/HH.10/JH.29.3.40. B.40. Section 5200. PL.13 Engine Oil Fittings. Further to our memo. Ev/HH.3/JH.11.3.40. We send you herewith marked up print of the above scheme… | ||
| scan0103 | Blueprints for the RE.692 camshaft for the B.80 Aluminium Engine. | ||
| View original record | File lowt. To Rm. c. to Ev. Ev/HH.1/JH.29.3.40. B.80 Alum Engine. Section 5090 - Camshaft. Please receive herewith 2 blue prints of the following :- RE.692 Camshaft. This camshaft which is only for… | ||
| scan0104 | Despatch instruction for 3 oil coolers to be sent to Messrs Wilmot Breedon & Co. Ltd. for examination. | ||
| View original record | 10464 Hd/FC. from Rm/Hm. Rm/Hm.14/ML.29.3.40. c. D/BP. Please pack carefully 3 oil coolers (6 parts) and despatch to Messrs Wilmot Breedon & Co.Ltd., Eastern Works, Camden Street. Birmingham. 1. for… | ||
| scan0105 | Instruction to replace the balance weights and rebalance the crankshaft for a B.60 No. 2 engine. | ||
| View original record | 1064 To HPS/RH. Rm/JRS.2/JH.30.3.40. B.60 No.2. Will you please replace the balance weights and rebalance the crankshaft of this engine. Rm/JRS. | ||
| scan0106 | Request to replace the balance weights and rebalance the crankshaft for the B.60 No.2 engine. | ||
| View original record | 1044 To HPS/RH. Rm/JRS.2/JH.30.3.40. B.60 No.2. Will you please replace the balance weights and rebalance the crankshaft of this engine. Rm/JRS. | ||
| scan0107 | The rationalisation of cast-iron engines, including cancellations and conversions for marine use. | ||
| View original record | 10244 HPS. c. HPS/RH. Rm.9/ML.30.3.40. CAST-IRON RATIONALISED ENGINES. Herewith a summary of the high power chassis engines which are at present either in process of manufacture or instructed. It will… | ||
| scan0108 | Modifying a list of engine units, dividing them into categories and specifying their purpose. | ||
| View original record | To HPS. c. to HPS/RH. c. to Ev. c. to Ev/HH. Rm/CTS.1/JH.1.4.40. ENGINE UNITS. Further to our memo. Rm/CTS.6/JH.21.3.40. We have been able to further modify the list of engines which appear on page 5… | ||
| scan0109 | Engine specifications, production plans, and component storage for future development. | ||
| View original record | -2- Rm/CTS.1/JH.1.4.40. Category 'C' Cont'd. B.80 No.8 (3.25 bore) Alum construction. B.60 No.12 (3.50) Test Bed. Wilcox Rich Tappet Note. B.60 No.10 should be built from any up-to-date parts from… | ||
| scan0110 | Order for 24 rubber bushes to be sent to The British Tyre & Rubber Co. Ltd. | ||
| View original record | 1044. To Lcs. c. to G/JWH. Rm/JRS.14 JDL.30.3.40. Please send to - The British Tyre & Rubber Co.Ltd., Derby Road, Burton-on-Trent. an order for 24 rubber bushes to drawing EXS.1421 of 35-40 durometer… | ||
| scan0111 | Request to The British Tyre & Rubber Co. Ltd. for the production of 24 rubber bushes to a specific hardness. | ||
| View original record | 1044. Rm/JRS.12/JH. 30th. March, 1940. The British Tyre & Rubber Co.Ltd., Derby Road, Burton-On-Trent. For the attention of Mr. Birkbeck. Dear Sirs, Will you please produce for us 24 rubber bushes to… | ||
| scan0112 | Design error in the B.80 throttle opening controls, attributing it to a new draughtsman's incorrect methodology. | ||
| View original record | WYMAN Noted [Signature] 1044. To RM. Jnr.9/JH.2.4.40. B.80 Throttle Opening. For the last 20 years the foot accelerator and hand control has always been made so that the amount of throttle opening is… | ||
| scan0113 | Letter from British Tyre & Rubber Co. Ltd. confirming the manufacture of 24 Rubber Buffers. | ||
| View original record | B380. Crankshaft File. 1044 BRITISH TYRE & RUBBER CO. LTD. TELEPHONE: BURTON-ON-TRENT 2977 (2 LINES). TELEGRAMS: "BRITGOODS, BURTON-ON-TRENT." DIRECTORS: SIR WALROND SINCLAIR, K.B.E., (CHAIRMAN &… | ||
| scan0114 | Experimental use of a Reynolds chain driven camshaft to replace the existing Morse chain. | ||
| View original record | File 1044 To Rm. from Jnr. c. to EV/HH. Jnr.10/JH.2.4.40. B.60 Reynolds Camshaft Drive. Ref. Rm/JRS.5/JH.21.3.40. We enclose herewith 2 prints of PL.165 showing the Reynolds chain driven camshaft for… | ||
| scan0115 | Alteration note for the RE 466 Crankcase & Cylinders Lop, replacing the Tappet Cover. | ||
| View original record | RM File 124/RE 1044. & 1117 4-4-40 SEC 5000 B60 RE 466 CRANKCASE & CYLINDERS LOP SHEET 2 ALTERATION EB4777 TAPPET COVER REPLACED BY RE 798. REASON:- IN ACCORDANCE WITH SPECIFICATION HPS CP 2/SW… | ||
| scan0116 | Modifications to a Studebaker damper for the B80 engine. | ||
| View original record | To EV and JMR Copy EV/HH 1044 Rm/JRS 3/CK 5-4-40 Studebaker damper on B80 We have found that the Studebaker damper as fitted to,B80 removes the engine periods more effectively if fitted with higher… | ||
| scan0117 | Simplified throttle controls for the B.60 Twin Stromberg engine, including modifications to the induction pipe. | ||
| View original record | Fle 1044. To Rm. c.c. to Ev/HH. Jnr.2/JH.5.4.40. Throttle Controls B.60 Twin Stromberg. PL.168. The drawing shows the simplified controls between the dash board and the induction pipe. This does not… | ||
| scan0118 | Electrical units required for the B.40 Engine No.1. | ||
| View original record | 1044. To HPS/RH. c.c. to Ev. c.c. to Rm/CTC. Rm/RC.3/JH.6.4.40. re B.40 Engine No.1. The following electrical units will be required for the first B.40 engines :- Dynamo. Lucas C.45.NV. No.3. (Lab)… | ||
| scan0119 | Alteration note for B40 engine crankshaft parts, detailing component additions, deletions, and dimensional changes. | ||
| View original record | RM 127 RE. file 1044. 6-4-40 B40 ENGINE CRANKSHAFT - SEC. 5010 RE. 260 L.O.F. CRANKSHAFT RE. 258 LOCKING PLATE ALTERATION. RE 260:- ADDED. RE 805 FAN PULLEY. KB. 3668 BOLT FOR PULLEY. - DELETED. RE.… | ||
| scan0120 | Alteration note for a H.T. ignition wire tube bracket due to a drawing office error. | ||
| View original record | To RH. 131/RE 1044 9. APRIL. '40 File BGO & BBO. SEC. 5210. Re 647. H.T. IGNITION WIRE TUBE BRKT. ALTERATION. 3.750 To 2.750 REASON D.O. ERROR. Shaw Rolls | ||
| scan0121 | Sending two new blueprints for a Humber Type Damper. | ||
| View original record | 1044. Fte To. Rm O. EW. Rm/HH.10/ 9. 4. 40 B. 60 Humber Type Damper. Sec: 5010 Crankshaft Sec: 5020 Crankshaft Damper Please receive herewith 2 blue prints of the following new LOPs. Sec: 5010 RE. 804… | ||
| scan0122 | Blueprints for a new cast iron fan pulley to replace a sheet metal one on the B 40 Engine crankshaft. | ||
| View original record | To Rm ~~c.c. to EV~~ File 1044 Φ 1116 Rm/HH 1/9.4.40 B 40 Engine Crankshaft Sec 5010 Please receive herewith 4 blueprints of the following; RE 805 Fan Pulley(cast iron) - 1 off - replacing RE 215… | ||
| scan0123 | Dispatch of blueprints for B.80 Alum Engine components. | ||
| View original record | To. Rm C. Ev File 10 kk d 1117 Rm/HH. 11/ 9. 4. 40 B. 80. Alum Engine Sec: 5000 Crankcase & Cylinders Please receive herewith blue prints of the following new LOP and details. RE. 780 Tappet Cover RE.… | ||
| scan0124 | Requesting modification of the camwheel for the B.60 No.1 engine. | ||
| View original record | 1644 To HPS/RH. Rm/JRS.19/JH.10.4.40. CAMWHEEL FOR B.60 No.1. The camwheel for B.60 No.1 for endurance is to be to Rm.619. Will you please arrange for the wheel to be modified to this drawing as soon… | ||
| scan0125 | Alteration document detailing the added width of camshaft bosses for the crankcase and cylinders. | ||
| View original record | To RM. 134 EB. File 1044 / 1117 10-4-40 B 80 CRANKCASE AND. SEC. 5000. CYLINDERS. SHEET I ALTERATION EB 5079. WIDTH OF CAMSHAFT BOSSES ADDED REASON D.O. OMMISSION. Pillo N/o | ||
| scan0126 | Alteration notice for the inside diameter of fan blades on a Pulley & Fan Dynamo. | ||
| View original record | 136 / RD File 1044 11-4-40 B60. SECTION 8070 RD 487 - PULLEY & FAN DYNAMO ALTERATION INSIDE DIAMETER OF FAN BLADES ALTERED FROM 3.800 TO 3.187 REASON D.O. ERROR [signature] [signature] | ||
| scan0127 | Analysis of the B60 Camshaft Drive, calculating the safe working load for a fabroil gear and discussing a previous chain drive failure. | ||
| View original record | B60 Camshaft Drive Because of the failure of the fabroil cam gear EB 3956, I decided to calculate the safe working tooth load for an engine speed of 4000 r.p.m. Professor Earle Buckingham of the… | ||
| scan0128 | Analysis of different timing drive schemes for the B60 engine, including metal gears, chain drive, and Wraith spring drive. | ||
| View original record | -2- The various schemes possible for the B60 are:- 1. Metal timing gears: This is a step backwards and likely to be noisy. 2. Chain Camshaft Drive: In this case the camshaft would have to be fully… | ||
| scan0129 | Confusion regarding detail drawings for aluminium engines and an urgent request for updates. | ||
| View original record | Rm/HH. from Rm. B80 1044 Rm.14/ML.15.4.40. ALUMINIUM ENGINES. There appears to be some confusion with regard to exactly what is required in the way of detail drawings for aluminium engines. The… | ||
| scan0130 | Providing information and test data for the B.60 and PL.72 crankshafts. | ||
| View original record | 1044 To Ev/HH. Rm/CTS.14/JH.15.4.40. B.60 Crankshaft. We send you herewith the following information in connection with the PL.72 crankshaft you are detailing. (1) Information from Olley re sealing… | ||
| scan0131 | Updating progress on a 3.5-inch bore liner crankcase and drawings for an 8-cylinder 'Alum' engine. | ||
| View original record | To. Rm. [Handwritten: Forwarded to HJR + HPS/RH] [Handwritten: 1044] [Handwritten: B80] Rm/HH.4/ 16. 4. 40. Alum Engines re Memo Rm.14/ML. 15. 4. 40. The 3 1/2 bore liner Crankcase for an 8 Cylinder… | ||
| scan0132 | Tests investigating the effect of reducing crankshaft inertia on torsional vibration frequency on a B.60 engine. | ||
| View original record | 1044 To Ev. c. to Jnr. Em/JRS.4/JH.17.4.40. The effect of reducing crankshaft inertia on torsional vibration frequency on B.60. These tests were carried out on B.60 No.2. which was fitted with a… | ||
| scan0133 | Continuation of a memo discussing engine vibration, critical speed, and the effect of balance weights. | ||
| View original record | Cont'd. by removal of the balance weights we can run .150 r.p.m. higher before reaching the same maximum vibration amplitude. This increase of the 6th. harmonic critical speed is so small that it is… | ||
| scan0134 | Graph plotting amplitude against crankshaft RPM for a Wraith spring drive without a slipper or balance weights. | ||
| View original record | B.60. No 2. WRAITH SPRING DRIVE WITHOUT SLIPPER WITHOUT BALANCE WEIGHTS AMPLITUDE DEGREES CRANK SHAFT R.P.M. 1000 2000 3000 2 4 6 9TH 6TH RM / J.R.S. 29·3·40 | ||
| scan0135 | Graph of amplitude in degrees versus crankshaft RPM for a Wraith spring drive without slipper, with a balance weight. | ||
| View original record | B. 60. No. 2 WRAITH SPRING DRIVE WITHOUT SLIPPER WITH BALANCE WEIGHT AMPLITUDE DEGREES CRANKSHAFT R.P.M 1000 2000 3000 9TH 6TH R.M / URS 1.4.40 | ||
| scan0136 | Graph showing amplitude tests for a Wraith Spring Drive operating without balance weights. | ||
| View original record | B. 60 No. 2 WRAITH SPRING DRIVE WITHOUT BALANCE WEIGHTS AMPLITUDE DEGREES .2 .4 .6 .8 1000 2000 3000 4000 R.M. / J.R.S 2 . 4 . 40 | ||
| scan0137 | Graph plotting amplitude in degrees against engine RPM for the Wraith Spring Drive. | ||
| View original record | B 60 NO 2 WRAITH SPRING DRIVE AMPLITUDE DEGREES .8 .6 .2 ENGINE R.P.M 1000 2000 3000 4000 RM / URS. 2.4.40 | ||
| scan0138 | Blueprint showing 9th harmonic torsiograms for a Wraith spring drive, with and without balance weights. | ||
| View original record | B. 60 No. 2 WRAITH SPRING DRIVE WITHOUT SLIPPER. WITHOUT BALANCE WEIGHTS AMPLITUDE .6° NAT. FREQ. 16200 PER MIN. 800 R.P.M. WITH BALANCE WEIGHTS AMPLITUDE .6° NAT. FREQ. 16300 PER MIN. 1700 R.P.M. 9TH… | ||
| scan0139 | Modifications and pattern updates for the B.80 Alum Unit engine. | ||
| View original record | 1044 To Sft/EW. c. to HPS. c. to HPS/RH. Rm/CTS.17/JH.19.4.40. B.80 Alum Unit. With reference to the above unit. Sft/EW has stated, that there is 200 hours work necessary to complete the patterns. We… | ||
| scan0140 | Clarifying the correct camshaft usage for the Ripplet engine crankcase and cylinders. | ||
| View original record | File 1044 1022 To. Rm c. Ev Rm/HH.6/ 19. 4. 40. B.60. Ripplet Sec: 5090 Camshaft With reference to our memo Ev/HH.1/JH. 13. 3. 40. Will you please note that RE. 618 Camshaft is for use with Crankcase… | ||
| scan0141 | Blueprints for an 8-cylinder alum engine flywheel, noting an inability to complete the scheme due to lack of chassis information. | ||
| View original record | Ruy/CTS.10/JS 24.4.40 1044 To. Rm c. Ev Rm/HH.3/ 23. 4. 40. 8 Cylinder Alum Engine Section: 6000 Flywheel & Clutch PL. 110. Flywheel. Please receive herewith blueprints of the following new drawing.… | ||
| scan0142 | Instructions and blueprints for B.80 Aluminium Cylinder Head components. | ||
| View original record | 1044 FILE Rm/CTR8/JMS 1-5-40 To Rm. c.c. to Ev. Rm/HH.6/JH.24.4.40. B.80 Alum. Section 5050 - Cylinder Head. Please receive herewith blue prints of the following. RE.912 Rocker cover - [REDACTED].… | ||
| scan0143 | The installation of two S.U. carburettors on a B.60 engine, discussing throttle controls and fire risk testing. | ||
| View original record | Handwritten: Rm/6782/JMS. 1.5.40 Handwritten: FILE To Rm. c.c. to Rm/HH. 1044 - Jnr.22/JH.24.4.40. Two S.U. Carburetter on B.60. Rm.2/MH.2.3.40. Please receive herewith PL.174 showing the throttle… | ||
| scan0144 | Drawings and instructions for a B.60 crankshaft assembly using Welsh washers and a Humber damper. | ||
| View original record | Ru/CTS.17/ML 25-4-40 To Rm. c.c. to Ev. 1044 D 1116 Rm/HH.2/JH.24.4.40. B.60 Crankshaft. PL.72 Integral Balance Weights. Section 5010. Please receive herewith 4 prints of the following drawings… | ||
| scan0145 | The latest design changes for a cheaper production B.60 crankshaft. | ||
| View original record | 1044 HES. from Ra/CTS. Ra/CTS.17/HL.25.4.40. c. to HPS/THL. c. to Rd/AML. B.60 CRANKSHAFT. We send you herewith R.E.869 Crankshaft issued in the attached memo. ref: Ra/HL.2/JH.24.4.40. This represents… | ||
| scan0146 | Requesting the preparation of shafts for testing and a comparative report on a new crank. | ||
| View original record | - 2 - Rm/GTS.17/ML.25.4.40. will you please prepare for test, therefore, one shaft for a B.60 and one for a B.40. Finally, having proved a soft shaft, and this type of plug, we would be in a position… | ||
| scan0147 | Design and testing of B.80 Stromberg Carburetter Controls. | ||
| View original record | Rm/CASH 6-5-40 To Rm. c.c to Rm/HH. 1044 Jnr.1/JH.25.4.40. B.80 Stromberg Carburetter Controls. Referring to Rm.1/ML.4.4.40. Please receive herewith - PL.178 Simplified throttle controls. PL.196 Hot… | ||
| scan0148 | Temporary measure due to a stock shortage of copper pipe. | ||
| View original record | 1044 Rm/BTS.2/JMS 1.5.40 To Rm. C. to Ev. Rm/HH.1/JH. 26.4.40. B.60 Water Conn. Sec.5190. Due to absence of 1.125 dia. 036 copper pipe from stock we are sending you herewith blue prints of - RE.813… | ||
| scan0149 | Resolving a design conflict by re-arranging engine controls for the swinging arm clutch operation. | ||
| View original record | BK 1044 FJH SECRET. To Rm. from Ev. c. to Rm/HH. Aiee Ev.14/JH.30.4.40. Rm HWynn Engine Controls to Suit Swinging Arm Clutch Operation. Right Hand Senionr Range. We have always understood that there… | ||
| scan0150 | Throttle controls for the rationalised senior range of cars with B.60 or B.80 engines. | ||
| View original record | Cont'd. This portion of the throttle controls is the same for all cars of the rationalised senior range, having either B.60 or B.80 engines with Stromberg or S.U. Carbs. of R.H. drive models. All… | ||
| scan0151 | Specifications for a B.80 Induction Pipe, including its size, connections, and suggested improvements. | ||
| View original record | [Handwritten] FILE [Handwritten] Rm/C.T.S. 5-40 [Handwritten] 16864 To Rm. o/ to Rm/HH. Jnr.18/JH.30.4.40. B.80 Induction Pipe. Herewith PL.209 showing the connections for the vacuum column gear… | ||
| scan0152 | Sending blueprints for Water Pump and Fan LOP's for B.60 and B.80 engines, with notes on design changes and experimental drawings. | ||
| View original record | FILE Rm/878 10/JMS 1-5-40 10444 To. Rm. C. [text crossed out] Rm/HH.2/ 30. 4. 40. B. 60. B. 80. SCD. 1398. Single Belt Drive with W.80 Water Pump. Section. 5160. Water Pump and Fan. With reference to… | ||
| scan0153 | Adaptation of a Vauxhall '25' water pump for a B.60 engine, including a list of required parts. | ||
| View original record | FILE 1044 Rm/CDB/1/JMR 8-5-40 To Rm. or to Ev. Rm/HH.21/JH.1.5.40. B.60. Vauxhall '25' Water Pump. In accordance with TL.136. Section 5000. Crankcase and cyls. Section 5050 Cyl. head. Section 5160… | ||
| scan0154 | Required modification to a pump body and comparing pump speed ratios and rotor diameters with a Vauxhall unit. | ||
| View original record | Cont'd. A slight modification to the top hole shewn on scheme for mounting back plate will also require to be made to the pump body. We would point out that the speed ratio is NOT the same as the R.R… | ||
| scan0155 | The distribution of blueprints for updated B.30 Alum camshafts. | ||
| View original record | IUHH FILE Rm/PES.1/ML. 3-5-40 To Rm. C. to EV. Rm/HH.3/JH.1.5.40. Camshaft B.30 Alum. Please receive herewith blue prints of the following - RE.886 Camshaft. RE.911 L.O.P. camshaft. Please instruct as… | ||
| scan0156 | Listing blueprints for the B.80 3.5 Bore Aluminium engine, detailing components for the crankcase, cylinders, valves and fittings. | ||
| View original record | To Rm. FILE 1044 Rm/CTS.2/JMS.1.5.40 Rm/HH.9/JH.1.5.40. B.80 3.5 BORE ALUMINIUM. CRANKCASE & CYLINDERS SECTION 5000 VALVES & FITTINGS SECTION 5060 Please receive herewith the following blueprints,… | ||
| scan0157 | Identical LOP's for the Water Pump & Fan for Bentley 60 and 80 units, requesting clarification on which to use and which to cancel. | ||
| View original record | File 1044. To Rm. from HPS/RH. c.c. Ev. (struck through) c.c. Hy/HH. (struck through) HPS/RH.2/SW.2.5.40. Water Pump & Fan Ben.60-80. We have received under cover of memo Rm/HH.2. 30.4.40, LOP's for… | ||
| scan0158 | Instructions for fitting Humber dampers on B.60 engines, specifying parts and friction load. | ||
| View original record | 1044 HPS/RH from Rm/JRS. Rm/JRS.1/JMS.4.5.40. HUMBER DAMPERS ON B.60. The Humber dampers as fitted to B.60 engines are to be fitted with the bakelised fabric bush EXS.1886, and the two Ferodo discs… | ||
| scan0159 | Distributing blueprints for a modified wheelcase for B.40 & B.60 engines. | ||
| View original record | FILE 1044 Rm /B/8/1/JMS 8-5-40 To Rm. c. to EV. Rm/HH.1/7.5.40 B.40 & B.60 Section 5180. Wheelcase Please recéive herewith 4 blue prints of the following detail:- RE.1017 Wheelcase 1 off This detail… | ||
| scan0160 | The interference fit on a B.80 3.5 Bore Aluminium part, requesting confirmation of its sufficiency. | ||
| View original record | 1044 FILE To Rm. Rm/HH3/7.5.40. B.80 3.5 Bore Aluminium. Further to our instructions in memo Rm/HH.9/1.5.40. we wouldpoint out that we have allowed a similar interference fit on the liner dia., to… | ||
| scan0161 | Modifications to the B.80 Aluminium 3.5 Bore, RE971 Crankcase & Cylinders. | ||
| View original record | FILE 1044 Rm/HH.2/7.5.40. To Rm. c to Mr Walker Pattern Shop. B.80 Aluminium 3.5 Bore. RE971 Crankcase & Cylinders. In order to keep this detail clear until such time that we are able to make a… | ||
| scan0162 | The distribution of blueprints for a modified wheelcase on B.40 and B.60 engines. | ||
| View original record | Spare COPY. To Rm. c. to Ev. 1024 T 1133 Rm H.1/7.5.40. B.40 and B.60. Section 5180 - Wheelcase. Please receive herewith 4 blue printsf of the following detail:- RE.1017 - Wheelcase. This detail is a… | ||
| scan0163 | The dispatch of blueprints for new parts related to a water pump and fan. | ||
| View original record | Handwritten: FILE Rm/B18.2/JM 13-5-40 To Rm. c. to Ev. Handwritten: 1844 Rm/HH.9/JH.8.5.40. B.40. SCD.1398 Single Belt Drive with W.80 Water Pump. PL.202 Fan. Section 5160 Water Pump and Fan. Further… | ||
| scan0164 | Alteration note for increasing the diameter of a camshaft and hub bore. | ||
| View original record | TO RM 164 RE 10.5.40 1044. B60 B40 SECTION 5090 SECTION 5090 RE207 CAMSHAFT B60 RE138 CAMSHAFT B40 ALTERATION DIAMETER ON FRONT END OF SHAFT INCREASED FROM 2.099, DIA TO 2.124, DIA RE139 HUB -… | ||
| scan0165 | Secret memorandum regarding fan belt clearance on the B.80 engine. | ||
| View original record | SECRET. To Rm/HH. from Ev. c. to Rm. c. to HPS/RM. Ev.4/JH.14.5.40. re B.80 Engine, Fan belt clearance. We confirm that you will re-issue PL.187 shewing the clearance between the damper and the bent… | ||
| scan0166 | Performance calculations for the Eight-Cylinder Bentley, comparing the 11.B.V. model to the 4.B.30. | ||
| View original record | Tele. 1044 To EV. from Rm/TAS. c. to JNR. c. to Rm/CPS. c. to Rm/PJH. c. to Rm/WYM. c. to RR/FD. Rm/TAS.6/JMc.14.5.40. Eight-Cylinder Bentley Performance. During the past few weeks considerable… | ||
| scan0167 | Performance data comparison for two engine units, including acceleration figures and maximum speeds. | ||
| View original record | -2- Rm/TAS.6/JMe.14.5.40. (cont'd) 11 B.V. Engine unit B.80 No.3 11/41 axle. .836 overdrive ratio. Wt. of car 2 up with full tank 4520 lbs. Frontal area 25.6 sq. ft. Wind resistance coefficient K =… | ||
| scan0168 | Comparison of induction systems and the effect of different tyre sizes on vehicle performance. | ||
| View original record | -2- Rm/TAS.6/JMo.14-5-40. Comparison of 3.S.U. and dual Stromberg induction systems on 11.B.5 is shewn in columns A. and B. As borne out on the road there is no difference in acceleration up to 60… | ||
| scan0169 | Method for calculating a car's performance from clutch horsepower, detailing various power losses. | ||
| View original record | RM/TAS.6/JMc.14.5.40. APPENDIX. Method of calculating the performance of a car given the clutch horse power. (1) From open exhaust test bed figures for the engine unit in question deduct the correct… | ||
| scan0170 | Procedure for calculating a vehicle's acceleration curve using horsepower and weight data. | ||
| View original record | -2- Deduct losses a,b, and c, from the cluton h.p.curve and draw a new curve on a horizontal scale of m.p.h. Different curves w ill be obtained for direct gear and overdrive. MAXIMUM SPEED is… | ||
| scan0171 | Blueprints and parts for a Renold chain-driven camshaft assembly. | ||
| View original record | COPY 1044 PL.165 RENOLD CHAIN DRIVEN CAMSHAFT. The particulars given on this memo have not been issued. Please receive herewith the following blue prints: SECTION 5010. prints - RE.1102 - Crankshaft.… | ||
| scan0172 | Instructions for incorporating the '2 Way Thrust Faces' and the Humber type Damper on a B.60 model. | ||
| View original record | and are to be used on a B.60 incorporating the "2 Way Thrust Faces" as per PL.7., and the Humber type Damper as per PL.90. This completes the instructions for the above. Rm/HH. | ||
| scan0173 | Drawing PL.225 for the B.60 Petrol Pipe, urgently required for 'Ripplet'. | ||
| View original record | 1044. To Rm/ C. to Rm. Jnr.12/JH.17.5.40. B.60 Petrol Pipe. Please receive herewith PL.225 showing the flexible pipe between the frame and the mechanical pump. I understand this is of some urgency as… | ||
| scan0174 | The failure of B.60 No.1 Unit on the test bed and instructions for repair. | ||
| View original record | f. 102LL To HPS/RH. from Rm/HM. Rm/HM.2/JMc.18.5.40. B.60 No.1 Unit. The above unit has been returned to you after failure on the test bed. Will you please dismantle and examine same. No.4 cylinder is… | ||
| scan0175 | Modifications to the 8-cylinder engine to give it 'Bentley' characteristics. | ||
| View original record | B80 1044 To Ev. from Rm. c. to JNR. Rm.1/JMc.20.5.40. MODIFICATIONS TO THE 8-CYL. ENGINE TO GIVE IT "BENTLEY" CHARACTERISTICS. The induction system with three carburetters is a some-what undesirable… | ||
| scan0176 | Diagrams and specifications for B.60 camshafts and cylinder heads. | ||
| View original record | 1024 To Rm. c. to Rm/CTS. for Mr. Caisley. Jnr.3/JH.20.5.40. B.60 Camshafts and Cylinder Heads. Referring to our conversation of Saturday last, I show here the diagrams of the 4 camshafts that were… | ||
| scan0177 | Camshaft specifications with diagrams and notes on valve lift and duration. | ||
| View original record | -2- Jnr.3/JH.20.5.40. (3) PD.288 244° Exhaust Cam. Inlet as No.2. Inlet cam form EB.4331. .437 LIFT Exhaust cam form EB.4351. .375 LIFT [Diagram 1 showing cam timing with labels: EX 244°, INLET 222°,… | ||
| scan0178 | Engine performance, detonation, and proposed cylinder head design improvements. | ||
| View original record | -3- Cont'd. one over the throat and one over the exhaust valve. The throat plug was found to be the best because (1) Detonation was at a minimum and power at a maximum. (2) Ignition advance was… | ||
| scan0179 | Drawings and parts for the Bentley 80 & L.H. Senior Range, PL.196 Hot Spot Operated Choke scheme. | ||
| View original record | COPY The particulars given on this memo have not been issued. Rm/HH.5/JH.21.5.40. Rm.from Rm/HH. Bentley 80 & L.H. Senior Range. 1044 ~~e-Ex~~ PL.196 Hot Spot Operated Choke. Sections 5070. Inlet… | ||
| scan0180 | The issuance of blueprints for B.60 Chassis camshaft components. | ||
| View original record | COPY The particulars given on this memo have not been issued. 1044 Rm. O. Ev. Rm/HH.1/JH.21.5.40. B.60 Chassis. PL.215 Aluminium Camshaft Wheel. Camshaft. Section 5090. Please receive herewith the… | ||
| scan0181 | Assessment of a proposed modification to a drive fitment for cost-saving purposes, concluding it would be too expensive. | ||
| View original record | B 80 1044. To Les. c. to Rm/FJH. Jnr.8/JH.24.5.40. Tachometer Drive. Speedometer Drive. Tecalemit Pump Drive. With reference to the drawing SKO.335 in which you request us to see if it is possible to… | ||
| scan0182 | Design and placement of the B.80 carburetter petrol filter. | ||
| View original record | Rm/TAS 1044 To Rm. c. to Rm/HH. Jnr.7/JH.24.5.40. B.80 Carburetter Petrol Filter. With reference to Rm/TAS.4/JMS.30.4.40. We send you herewith PL.240 showing the petrol filter mounted on the plinth of… | ||
| scan0183 | Revised mounting for the B.80 carburettor petrol filter to prevent fuel boiling. | ||
| View original record | 1044 To Rm. ~~or to Rm/HH.~~ Jnr.7/JH.24.5.40. B.80 Carburetter Petrol Filter. With reference to Rm/TAS.4/JMS.30.4.40. We send you herewith PL.240 showing the petrol filter mounted on the plinth of… | ||
| scan0184 | Design of a tachometer drive for bi-directional camshafts, proposing separate schemes for gear and chain drives. | ||
| View original record | 1044 To Jnr. from Rm/FJH. c. to Les. Rm/FJH.2/JMc.28.5.40. Tachometer Drive. Speedometer Drive. Tecalemit Pump Drive. Re. your memo Jnr.3/JH.24.5.40. We believe that your difficulty is due to your… | ||
| scan0185 | Oil fittings for the B.80 3½' Bore engine, enclosing blueprint L.O.P. No.RE.1231. | ||
| View original record | COPY The particulars given on this memo have not been issued. 1044 To Rm. c. Ev. B.80 3½ Bore. Oil Fittings. Section 5200. We enclose herewith blue print of L.O.P. No.RE.1231 for the above section.… | ||
| scan0186 | New blueprint parts for the B.60 engine's induction pipe and controls. | ||
| View original record | COPY 1044 The particulars given on this memo have not been issued. To Rm. C. Ev. Rm/HH.6/JH.29.5.40. B.60 Section 5070, 5080, 5240. Schemes PL.168 & PL.206. Please receive blueprint of the following… | ||
| scan0187 | Blueprints and required parts for a bell crank throttle assembly. | ||
| View original record | COPY To Rm. c. Ev. 1044 Rm/HH.7/JH.29.5.40. The particulars given on this memo have not been issued. B.60 - Section 5080. Further to our memo Rm/HH.6/JH.29.5.40. Please receive herewith blueprints of… | ||
| scan0188 | Issue of engines running after being switched off and seeking reasons for variations between different models. | ||
| View original record | 1044, B.807 Rm/CTS. from Rm. c. Rm/Wym. Rm.9/ML.29.5.40. RUNNING AFTER SWITCHING OFF. It is noticeable that 9.B.V. and 4.B.50 are much worse for running after switching off than 11.B.V. and 30.G.6. We… | ||
| scan0189 | The issuance of new blueprints for induction pipe and engine control components. | ||
| View original record | THE PARTICULARS GIVEN ON THIS MEMO. HAVE NOT BEEN ISSUED. 1044 To Rm. c. to Ev. Rm/HH.6/JH.29.5.40. B.60 Section 5070, 5080, 5240. Schemes PL.168 & PL.206. Please receive blueprint of the following… | ||
| scan0190 | Continued list of parts for an assembly, detailing components like dampers, shafts, and controls. | ||
| View original record | THE PARTICULARS GIVEN ON THIS MEMO HAVE NOT BEEN RE-ISSUED Cont'd. RE.1099 Assembly. Damper C'shaft. RE.406 Distance piece. RE.411 Assembly. Countershaft. RE.636 Control Rod. RE.1093 Throttle C'shaft.… | ||
| scan0191 | Blueprint for oil fittings for the B.80 3½ Bore engine. | ||
| View original record | 1044 To Rm. c. to Ev. Rm/HH.2/JH.29.5.40. B.80 3½ Bore. Oil Fittings. Section 5200. We enclose herewith blue print of LOP. No.RE.1231 for the above section. This is similar to the L.O.P. for Hs's… | ||
| scan0192 | Proposing tests to investigate the phenomenon of engine 'running after switching off' during cylinder head comparisons. | ||
| View original record | Rm/Wym and Rm/CTS. From: Rm. 1044 Rm.10/LL.4.6.40. RUNNING AFTER SWITCHING OFF. While Whyman is making a comparison of the two types of cylinder head for detonation, roughness, etc., we think it is an… | ||
| scan0193 | Issue of 'running after switching off' and the role of sodium-filled versus solid exhaust valves. | ||
| View original record | Jnr. from Rm/CTS. c.Ev 1044 Rm./CTS.1/JMS.17.6.40. RUNNING AFTER SWITCHING OFF. Re: memos Rm.10/ML.4.6.40. and Rm.9/ML.29.5.40. In both the above memos you have stated that 11.B.V. and 30.G.VII are… | ||
| scan0194 | Test report on water circulation modifications to address exhaust valve temperature and engine 'running on'. | ||
| View original record | -2- to check over 4.B.50 and 11.B.V. to see if the valve gear is affected by these valves re noise. Our latest water circulation tests can be described briefly as follows: Purpose. To ascertain… | ||
| scan0195 | Modifications to engine water cooling galleries and future valve considerations. | ||
| View original record | -3- 2. Internal Gallery. Jets altered to actually direct an even flow of water on to the back of each exhaust valve seat. The standard gallery does not do this. 3. Transfer Holes. Increased in number,… | ||
| scan0196 | New List of Parts for the Crankcase & Bearings to suit the L.H. Silver Phantom. | ||
| View original record | 1044 To Rm. from Rm/HH. C.EV. COPY Rm/HH.3/20.6.40. The particulars given on this memo have not been issued. B.80. Section 5000. Crankcase & Bearings. The following new L.O.P. has been made in… | ||
| scan0197 | Modifications to the B.80 Studebaker Crankshaft Damper. | ||
| View original record | COPY To Rm. from Rm/HH. 1044 Rm/HH.2/20.6.40. The particulars given on this memo have not been issued. B.80. Studebaker Crankshaft Damper Section. 5020 CRANKSHAFT DAMPER. The following L.O.P. has been… | ||
| scan0198 | New and existing parts required for the B.80 Front Engine Mounting scheme. | ||
| View original record | COPY 1044 To Rm. from Rm/HH C. Ev. Rm/HH.1/20.6.40. The particulars given on this memo have not been issued. B.80. PL.222 - Front Engine Mounting. Sec.5000.Crankcase & Cylinders. Sec.7000.Frame &… | ||
| scan0199 | Status report on existing engine units under development at the time of a work stoppage. | ||
| View original record | Seen Rm. FILE ENGINES. THE RATIONALISED RANGE. The following existing units were performing the various functions mentioned at the time of complete stoppage of development on the Test beds at… | ||
| scan0200 | Outstanding new units and the development status of a one-piece crankshaft. | ||
| View original record | -2- Rm/CTS.4/JMS.5.7.40. The following new units were outstanding to the shop: B.40. No.1 (75 m/m) B.40. No.2 (75 m/m) B.40. No.4. (3.50 ins) B.60.No.10. (75 m/m) B.60.No.9. (3.25 ins) B.60.No.12.… | ||
| scan0201 | Changes to crank drawing RE.869, cost-saving measures, and problems concerning the crankshaft damper. | ||
| View original record | -3- Rm/CTS.4/JMS.5.7.40. As a result of memo Rm/OTS.17/ML.25.4.40, the detail drawing RE.869 was produced which included: (a) Integral balance weights. (b) Minimum machining. (c) "Welch" plugs instead… | ||
| scan0202 | The development and issues concerning camwheels, connecting rods, and pistons. | ||
| View original record | -4- The last item is very important and has pulled many peoples legs. At the conclusion of serious testing Whyman had got 9.B.V. to the state where it is doubtful whether anyone could tell from inside… | ||
| scan0203 | Aerolite and split skirt pistons, including details on grinding, and test bed results for cylinder heads and blocks. | ||
| View original record | -5- Rm/CTS.4/JMS.5.7.40. The equivalent Aerolite pistons for the same range of units are: P.485 (75 m/m) P.482 (3.50") Note. We have not catered for a 3.25" bore Aerolite, having used the stock split… | ||
| scan0204 | The investigation of engine inserts, chrome plating, and a test rig for cylinder lubrication. | ||
| View original record | -6- Rm/CTS.4/JMS.5.7.40. Most of these are in the various cars and test engines, all of which have been charted with corresponding mileages up to the second month of this year. Results so far obtained… | ||
| scan0205 | Testing procedures for cylinder bore wear, oil consumption, and piston ring performance. | ||
| View original record | -7- Rm/CTS.4/JMS.5.7.40. off. The engine is to be run by the three remaining cylinders while carrying out any variations or observations on the three remaining bores, in which are fitted skeleton… | ||
| scan0206 | Analysis of component wear, including valve material specifications and test results. | ||
| View original record | -8- Rm/CTS.4/JMS.5.7.40. 3) Wear. In customers hands. (a) Thous' per 1000 miles of various series of units (quote different "set-ups"). (b) If possible, separate (a) into types of driving. (1) London… | ||
| scan0207 | Specifications and test data for engine components, including material composition, valves, induction pipes, and carburettors. | ||
| View original record | -9- Rm/CTS.4/JMS.5.7.40. Sulphur .04 Phosphorous .04 Chromium 12 - 13 Nickel 12 - 14 Tungsten 2.0-2.5 TESTS. Tensile. Weight 55 tons. Elong'n. 18% R. in A. 50% Izod 45 - 50 ft/lbs. Note. Further to… | ||
| scan0208 | Specification table for Vandervell bearings and bushes for the rationalised B.80, B.60, and B.40 engine ranges. | ||
| View original record | VANDERVELL BEARINGS (RATIONALISED RANGE) | DESCRIPTION. | B.80 Engine Vandl.No. R.R.No. No.off. | B.60 Engine Vandl.No. R.R.No. No.off. | B.40 Engine. Vandl.No.R.R.No.No.off | |---|---|---|---| |… | ||
| scan0209 | Specification table for various types of piston rings. | ||
| View original record | PISTON RINGS. *Tin plated Piece No. | Bore | Matl. | Width | Radial Thickness | Dimension of "L" Section. | Open Gap | Closed Gap | Tangen Load | Diametral Load | Cyl. Wall Pressure. | Remarks --- |… | ||
| scan0210 | Table of dimensions and test results for various engineering components. | ||
| View original record | 2. | Piece No. | Bore | Matl. | Width. | Radial Thickness. | Dimension of "L" Section. | Gap. Open. | Gap. closed. | Tang. Load. | Diam. Load. | Cylinder Wall Pressure. |… | ||
| scan0211 | Technical table detailing specifications and applications for various pistons. | ||
| View original record | P I S T O N S Piece No. R.R., Makers., Bore., Weight., Skirt Dimensions. Bedding. Relieved., Top Land Dimensions., Gudgeon Pin Centre to Piston Top., Height of raised crown., Volume of raised crown.,… | ||
| scan0212 | Table of piston specifications, including dimensions, materials, and remarks. | ||
| View original record | -2- Piece No. | Maker. | Bore. | Weight. | Skirt Dimensions. Bedding. Relieved | Top Land Dimensions. | Gudgeon Centre to Piston top. | Height of raised crown. | Volume of raised crown. | Material… | ||
| scan0213 | The mileage, fuel consumption, and modifications for a Cast Iron Engine B.60. | ||
| View original record | 1044 FOR FILES 13.7.40. Total mileage to date on Cast Iron Engine B.60 No.3 fitted in 9.B.V. - 3,886 mls. Petrol consumption B.3.D. needles - 15 M.P.G. Oil consumption - 1152 M.P.G. The oil… | ||
| scan0214 | New and altered parts for a B.80 model, compiled under Scheme PL.227. | ||
| View original record | 1044 To Rm. from Rm/HH. C.c. Ev. Rm/HH.10/SW.3.8.40. The particulars given on this memo have not been checked or issued. B. 80. Sec. 5020 - Crankshaft Damper. Sec. 5250 - Radiator. Sec. 7000 - Frame &… | ||
| scan0215 | Specification revision document detailing parts removed and fitted for a Bentley engine unit. | ||
| View original record | 1044 To Rm. from HPS/CP. c. Rm/Wym. c. Ev/HH. HPS/CP.1/SW.4.8.40. Bentley Chassis 9-B-V. Engine Unit B. 60 No.3 Specification of the above unit is revised as follows :- Previous Specification. Conn.… | ||
| scan0216 | Specification change document detailing the removal and fitting of cylinder head and rocker cover components. | ||
| View original record | - 2 - Previous Specification. Cylinders. LOP.EB.4007. EB.3844 Cyl. Head. Capacity 112.5 cc's C/R 6:9:1 Complete with Valves & Springs. Removed. EB.3874 Rocker Cover, EB.3967 And Side Oil Filler with… | ||
| scan0217 | Specification revision memo for Engine Unit B.60 No.2, detailing changes to components. | ||
| View original record | 1044 To Rm. from HPS/CP. c. Rm/Wym. c. Rm/HH. c. Rm/Hm. HPS/CP.1/SW.7.8.40. Engine Unit B.60 No.2. Specification of above unit is revised as follows :- Previous Specification. Cylinders LOP.EB.4007.… | ||
| scan0218 | Blueprints and drawing alterations for the B.60 Ripplet engine components. | ||
| View original record | 10444 To Rm. from Rm/HH. C.c. to: Ev. Rm/HH.8/ET.9.8.40 The particulars given in this memo have not been issued. B.60 RIPPLET PL.147 - AC. Air silencer. PL.151 - AC. Air silencer mounting. Sec.5082 -… | ||
| scan0219 | New and existing parts for the 'RIPPLETTS' shackle bracket assembly. | ||
| View original record | 1044 To Rm. from Rm/HH. Rm/HH.2/ET.9.8.40. C. to: Ev. The particulars given on this memo have not been issued. RIPPLETTS. PL.270 - Shackle Bracket. Sec.7000 - Frame and Fittings. In accordance with… | ||
| scan0220 | Letter discussing the design and manufacturing of the B-80 engine, with comparisons to other engines. | ||
| View original record | Copy of Oy9/D/Aug.10.40 - Serial No 199 1044 Copy No.14 Aero(GRIFFON) 2C Aero (Crankcase) 11 CARS (MISCELL:) Rolls-Royce Ltd, DERBY, England. August 10. 1940. Rm, Motor Cars. This acknowledges receipt… | ||
| scan0221 | From RH to Rm confirming the handover of a complete set of parts for B.80 No.6. | ||
| View original record | 1044 To Rm. from RH. 19.8.40. B.80 No.6. Please note we handed a complete set of parts for B.80 No.6 to Rm/Hallam on Thursday Aug. 1st. as per verbal instructions. RH. Rm | ||
| scan0222 | Parts for rear spring brackets under sections 6120 and 7030. | ||
| View original record | 10444 Rm/HH.1/ET.31.5.40 The particulars on this memo have not been issued. RIPPLETTO. PL.199 - Rear Spring Brackets. - Sections 6120 and 7030. In accordance with the above, the following parts have… | ||
| scan0223 | Instructions for fitting a 'DELCO' distributor to a B.60 Number 6 engine, listing required blueprints and parts. | ||
| View original record | 1044 Copy to Mr. CHILDS. Rm/HH.2/ET.27.8.40. B.60 NUMBER 6 ENGINE. Distributor Drive Sec. 5000 Distributor Sec. 8120 Vacuum control for "DELCO" Distributor 662NX2 - B 800. Please receive herewith the… | ||
| scan0224 | Letter from the British Bundy Tubing Company regarding the supply of Bundylim tubing for external oil pipes. | ||
| View original record | File Clm 1044 BRITISH BUNDY TUBING COMPANY LIMITED DIRECTORS: N. H. OAKLEY-EVANS (BRITISH) F. GRAHAM MAW (BRITISH) A. R. EDWARDS (U.S.A.) M. W. H. ELBUT (BRITISH) D. SIRKIN (BRITISH) R. A. SOLBORG… | ||
| scan0225 | Requesting an order for various sizes of O.D. tubing from The British Bundy Tubing Co. Ltd. | ||
| View original record | 10422 To Roy. from Rm/Clm. Copy to G/JWH. Rm/Clm.4/ET.20.8.40 Please send a covering order to The British Bundy Tubing Co. Ltd., Stafford House, Norfolk Street, Strand W.C. 2., for the following… | ||
| scan0226 | Letter to The British Bundy Tubing Co. Ltd. confirming the supply of tubing and noting remarks on silver soldering. | ||
| View original record | 1046 Rm/Clm.3/ET. Your ref. DH/MNH. 30th August, 1940. The British Bundy Tubing Co. Ltd., Stafford House, Norfolk Street, Strand, LONDON W.C. 2. Dear Sirs, We thank you for your letter of the 28th… | ||
| scan0227 | Inquiry to The British Bundy Tubing Co. Ltd. about converting experimental engines to use their tubing, requesting specific sizes and a quotation. | ||
| View original record | 1044 Rm/Clm.5/ET. 23rd August 1940. The British Bundy Tubing Co. Ltd. Thames House, Millbank, LONDON S.W. I. Dear Sirs, We wish to convert some of our experimental engines to Bundy tubing for the… | ||
| scan0228 | Performance and petrol consumption test report comparing Duplex Stromberg and S.U. carburettors on a Bentley Car 11 B.V. | ||
| View original record | Spare Ev. from Rm./Wym. c. JNR. c. Rm/CTS. Bentley Car 11 B.V. Unit B.80. No.3. We have carried out performance and petrol consumption tests on 11.B.V. car with a Duplex Stromberg carb. fitted, and… | ||
| scan0229 | Comparison of fuel consumption figures between Stromberg and 3 S.U. carburettors, including test specifications. | ||
| View original record | -2- The following are the figures:- Stromberg. 3 S.U's. 20 M.P.H. ... ... 18.27 M.P.G.? - 19.44 M.P.G. 30 " ... ... 19.16 " ? - 16.75 " 40 " ... ... 16.33 " - 16.27 " 50 " ... ... 15.41 " - 15.00 " 60… | ||
| scan0230 | Comparison of engine data for 'Myth' and 'B.60' models, with reference to American engines. | ||
| View original record | 1044 File. B60 & B80 Engines. To Rm. Jnr.4/JH.27.8.40. Special Engine Data. Page 113 August 1st. 1940. Automotive Industries. For comparison with the American engines, I give here figures for Myth and… | ||
| scan0231 | New List of Parts for a Water Pump fitted with a Morgan Stuart Gland and Skefco Ventilated Bearing. | ||
| View original record | 1044 To. Rm. c. EW. Rm/HH.1/ 10. 9. 40. B. 80. PL. 246. Water Pump fitted with Morgan Stuart Gland and Skefco Ventilated Bearing. Section. 5160. Water Pump & Fan. In accordance with the above scheme… | ||
| scan0232 | Notification of a gearbox change on a Silver Wraith chassis, fitting a standard Bentley V production overdrive gearbox. | ||
| View original record | 1044 To Rm. from Rm/CP. c. Rm/Wym. Rm/CP.4/SW.16.9.40. Silver Wraith Chassis 30-W-II. Bentley 80 - No.5 Unit. Gearbox K.8. BF. Note :- Gearbox No. 10-B-V has been removed from the above chassis &… | ||
| scan0233 | Updates to oil fittings for the B.60 Ripplet to suit a Delco Remy Distributor and PD.439 Wraith Spring Drive. | ||
| View original record | COPY //// To: Rm from Rm/HH c: Ev. Rm/HH.7/SW.30.9.40 B.60. Ripplet Oil Fittings Sec. 5200 To suit Delco Remy Distributor and PD.439 Wraith Spring Drive. In accordance with the above, we have detailed… | ||
| scan0234 | Confirming the completion of instructions for a rationalised valve gear scheme without grommets. | ||
| View original record | 1044 To: Rm from Rm/HH c: Ev. B.60 Ripplet Valves & Fittings Sec.5050 PL.173. Rationalised Valve Gear without Grommets. Further to our memo Rm/HH.8/JH.24.4.40, we have now completed LOP RE.1623 to the… | ||
| scan0235 | Requesting an alteration to the B.60 Induction Pipe design RE.147 based on test results. | ||
| View original record | 1044 To Rm/HH. from Rm/CTS. Rm/CTS.13/ET.4.10.40 B.60 INDUCTION PIPE (Stromberg AA.25 Carburetter) We have tested RE.147 and find that certain modifications are desirable. Comparing this with the… | ||
| scan0236 | Camshaft rattle issue in a B.60 Cast Iron Engine and proposing a solution. | ||
| View original record | 1044 To Jmr. from Rm/HH. c. Rm. Rm/HH.3/SW.4.10.40. B.60 Cast Iron Engine. Camshaft. 9-B-V has recently developed a camshaft rattle, and upon inspection, the thrust button was found to have worn a… | ||
| scan0237 | B.60 connecting rods required for servicing experimental cars. | ||
| View original record | 1044 To HPS. from Rm/CTS. Rm/CTS.10/ET.7.10.40. B.60 CONN. RODS. RE.197-8. We have 16 rods and caps as above, and they are required for fitting to existing engines, as part of our servicing of our… | ||
| scan0238 | Sequence of modifications list for the B.60 & B.80 crankcase and cylinders. | ||
| View original record | 1044 B.60 & B.80 CRANKCASE & CYLINDERS. SEQUENCE OF MODIFICATIONS. EB.3778 C'case & Cylinders. B.60 Issued 9.5.38. Re-issued 3.6.38. EB.3950 C'case & Cylinders. B.80 Issued 14.6.38 This drawing… | ||
| scan0239 | Index of modifications and specifications for various engine crankcases and cylinders. | ||
| View original record | 2. EB.4919 C'case & Cylinders. B.60 Issued 9.5.39. MOD.1257 Modified Petrol Pump Operation. EB.4935 C'case & Cylinders. B.80 Issued 22.5.39 PD.308 Dry Liner Alum Eight. PD.313 Mod. Front End. PD.316 "… | ||
| scan0240 | Trial of a dirt excluder on B.80 engines, enclosing drawings for a modified flywheel. | ||
| View original record | 1044 To Rm. from Rm/HH. c. Rm/Wym. c. Rm/OTS. B.80 Rm/HH.3/SW.7.10.40. B.80 Studebaker Damper. Sec.5020. In order that we may try out the dirt excluder on the present B.80 engines, we send you… | ||
| scan0241 | Cross-reference memo regarding the Silver Wraith model 30.G.VII. | ||
| View original record | 1044 See also File No 666 (B-80) for memo Rm/CP/5/EC/9.10.40 re Silver Wraith 30.G.VII. ****** | ||
| scan0242 | Requesting modifications to a Damper Flywheel and production of a Locking Cover for a Crankshaft Damper. | ||
| View original record | 1044 To HPS. from Rm/GTS. C. to Rm/Wym. Rm/GTS.1/ST.11.10.40. B. 80. (Crankshaft Damper Section 7020). RB.1638 - Damper Flywheel. Will you please machine this piece to receive the new type locking… | ||
| scan0243 | Reference note concerning 'Myth Exhaust Valve Tappets', cross-referencing another file. | ||
| View original record | 1044 For Jnr.1/JH.3.10.40 re "Myth Exhaust Valve Tappets" see also File No 1030 (Myth). ***** | ||
| scan0244 | Failure of chain drives and proposing a switch to aluminium alloy timing gears for cast iron engines. | ||
| View original record | HPS. from Rm. 1044 file B.60 + B.80 engines Rm.10/ML.10.10.40. TIMING GEARS - CAST IRON CAR ENGINES. The chain drives on our rationalised car engines have proved to be a failure. We should like to… | ||
| scan0245 | Instructions for alterations to a modified Studebaker type crankshaft damper and related components. | ||
| View original record | 1044) NOT ISSUED. To Rm. from Rm/HH. c. [illegible] Rm/HH.2/SW.7.10.40. B.80 - Modified Studebaker Type Crankshaft Damper PL.352. Sec.5010 - Crankshaft. Sec.5020 - Crankshaft Damper. Sec.5270 -… | ||
| scan0246 | Specification revision for Bentley 80 Engine Unit No. 5 for Silver Wraith Chassis 30 G VII. | ||
| View original record | 1044) To Rm from Rm/CP c. Rem/cyn c. Rem/Hirr Rm/CP/7/EC/9.10.40. Bentley 80 Engine Unit No. 5 Silver Wraith Chassis 30 G VII Specification of the above Unit is revised as follows :- Carried out at… | ||
| scan0247 | Specification of a new replacement part for the Water Pump & Fan. | ||
| View original record | Water Pump & Fan 10P EB 4208 The following new replacement part fitted:- EB 5000 Bearing Spindle -------------- | ||
| scan0248 | Material test specifications for Cast Aluminium Alloy Timing Gears used on the Lincoln Zephyr. | ||
| View original record | COPY RM 1044 Material Test Laboratory HL/GLT.13/MB.9.10.40. re:Cast Aluminium Alloy Timing Gears as used on Lincoln Zephyr -------------------------- Herewith the specification limits for Chemical… | ||
| scan0249 | Specification revision for the gearbox fitted to a Silver Wraith Chassis 30 G VII. | ||
| View original record | To Rm from Rm/CP c. Rm/Wym c. Rm/HH Rm/CP/6/EC/9.10.40. Silver Wraith Chassis 30 G VII Engine Unit B 80 No. 5 Specification of the gear box fitted to the above Chassis is revised as follows :- Work… | ||
| scan0250 | Engine vibration orders, torque components, and reciprocating masses in various engine configurations. | ||
| View original record | Wd/GSB.11/RS.16.12.40. - 2 - The best treatment of this is given by Den Hartog in "Mechanical Vibrations". The present writer has evolved an alternative method for one of the less satisfactory steps… | ||
| scan0251 | Drawings for the B.80 Marine Engine's crankcase and cylinder components. | ||
| View original record | 1044 To Rm. from Rm/HH. c. [REDACTED] Rm/HH.7/SW.14.10.40. B.80 Marine Engine. Crankcase & Cylinders Sec.5000. PL.237, 247 & 251. The following drawings have been detailed :- RE.1671 Joint - lower… | ||
| scan0252 | Possibility of manufacturing timing gears for cast iron engines. | ||
| View original record | C.T.S. If we can get a pattern made, we should be able to get a set of these gears on test to replace chain drive To Rm. from HPS. HPS.2/VS.16.10.40. TIMING GEARS - CAST IRON CAR ENGINES. Rm 1044… | ||
| scan0253 | Specification revision for Bentley V Chassis 9-B-V, Unit B 60 - No. 3, detailing changes to the rear axle and wiring. | ||
| View original record | To Rm from Rm/CP c. Rm/Wym c. Rm/HH Rm/CP.7/EC.29.10.40. Bentley V Chassis 9-B-V Unit B 60 - No. 3 Specification of the above chassis is revised as follows :- Work carried out at Clan 28.10.40.… | ||
| scan0254 | List of new drawings and blueprints for the B.80 Alum Engine induction and carburetter system. | ||
| View original record | 1044 To Rm. from Rm/HH. c. Ev. Rm/HH.1/SW.10.10.40. B.80 Alum Engine. Sec.5070 - Inlet Pipes. Sec.5080 - Carburetter Sec.5082 - Carburetter Air Silencer. Sec.5190 - Water Connections. Sec.5200 - Oil… | ||
| scan0255 | Parts list for an air silencer, water return pipe, and petrol feed pipe assemblies. | ||
| View original record | - 2 - RE.1595 Shell - Air Silencer. RE.1596 Air Silencer. RE.1617 Outer Frame - Air Inlet. RE.1668 Expanded Metal Sheet (Air Silencer) Sec.5190. RE.1607 Water Return Pipe Brazing Assembly. RE.1608… | ||
| scan0256 | Oil fittings for the Delco Remy Distributor and Wraith Spring Drive. | ||
| View original record | SPARE COPY 1044 To: Rm from Rm/HH c: Ev. Rm/HH.7/SW.30.9.40 B.60. Ripplet Oil Fittings Sec. 5200 To suit Delco Remy Distributor and PD.439 Wraith Spring Drive. In accordance with the above, we have… | ||
| scan0257 | Work report on Bentley Chassis 9-B-V detailing the replacement of a gearbox and the fitting of new cam levers. | ||
| View original record | 1044 COPY. To: "Rm" from Rm/CP c: "Rm/Wym", c: "Rm/HH". Bentley Chassis 9-B-V Unit B.60 No 3. Work carried out at Clan Foundry 6.10.40 Gear-Box B.8.BP Note that Gear Box No i-B-V has beem removed from… | ||
| scan0258 | The addition of new parts for the A.C. Air Silencer under alteration No.194/RE. | ||
| View original record | 1044 NOT ISSUED. To Rm. from Rm/HH. c. Rm/HH.1/SW.11.10.40. B.60. PL.151 A.C. Air Silencer. Sec.5050 Cylinder Head. Sec.5082 Carb. Air Silencer. Please receive herewith the following new LOP and… | ||
| scan0259 | Alteration instructions for the RE.289 Rocker cover. | ||
| View original record | - 2 - RE.289 Rocker cover, has been altered under alteration EM 1.0 No. 193/RE. This completes instructions. Rm/HH. Moke [Text from reverse side bleeding through] NOT ISSUED B.30. II.131. A.O. six… | ||
| scan0260 | Specification for B80 No. 6 Unit (Cast Iron). | ||
| View original record | To Rm from Rm/CP Rm/CTS Rm/CP/1/EC/30.10.40. B80 No. 6 Unit (Cast Iron) 1044 We give herewith complete specification of new unit. Built at Clan Factory, 24.9.40. Crankcase and bearings LOP EB5215… | ||
| scan0261 | Specifications for engine components including main bearings, crankshaft, connecting rods, and pistons. | ||
| View original record | Z Vandervell Main Bearings continued. Bearings have .003 clearance on crank. Crankshaft LOP EB 4796 2.750 Journal Complete to above LOP incorporating:- EB 4575 crankshaft. .4% Carbon Steel. EB 3960… | ||
| scan0262 | List of parts for the cylinder head, valves, fittings, inlet pipe, and carburettor. | ||
| View original record | Cylinder head LOP EB 4131 continued. Complete to above LOP incorporating:- EB 4098 Cylinder head. 4 - EB 4001 inlet seats in 365 4 - EX 34227 " " " 3½% nickel. PD 430 Rocker cover Oil filler. EB 5063… | ||
| scan0263 | List of engine components, their part numbers, and specifications including valve timing. | ||
| View original record | Carburettor Air Silencer Rm/Wym to supply ---------- Camshaft LOP EB 4314 Complete to above LOP using:- EX 33975 Camshaft Modified to PD 481 lubrication of distributor and pump drive gear. Valve… | ||
| scan0264 | Typed list of engine components and their associated parts or modifications. | ||
| View original record | Oil Fittings LOP EB 4320 EB 4083 Oil Pipe deleted (Oil feed to distributor and pump drive gear.) Otherwise complete to above LOP ---------- Oil Relief Valve LOP EB 3954 Complete to above LOP… | ||
| scan0265 | List of components required for a complete Dynamo. | ||
| View original record | Dynamo Complete as follows:- Armature LOP DB 1848 DB 2451 Pulley i/c Bearing Brackets LOP DB 1861 Field Winding LOP DB 1864 Commutator LOP DB 1759 -------- | ||
| scan0266 | Torsional rigidity and proposing a return to an all-welded construction for eight-cylinder frames. | ||
| View original record | 10444 C O P Y. To Rm. EIGHT CYLINDER FRAMES. ------------- It is felt that eight cylinder frames will be liable to front end shake when fitted with drop head coupe or sedanca bodies. To overcome this,… | ||
| scan0267 | Drawings for a sodium-filled exhaust valve for B.40, B.60, and B.80 engines. | ||
| View original record | 1444 Rm/CTS - Will you see if Motor Components can make these valves. Rm To Rm. from Rm/HH. c. Rm/CTS. Rm/HH.5/SW.5.11.40. File B.40 - B.60 - B.80 Valves and Fittings - Sec.5060. In accordance with… | ||
| scan0268 | Feasibility of increasing the inertia of the B.80 crankshaft damper flywheel. | ||
| View original record | 10444 To Rm. c. to Ev/DB. B. 80. copy crankshaft 11/L Jnr.10/JH.1.11.40. B.80 CRANKSHAFT DAMPER. In reply to your Rm.10/ML.29.10.40. There is no room to increase the inertia of our crankshaft damper… | ||
| scan0269 | Note detailing the removal of the Bentley 80 No.1 Unit from chassis 4-B-50. | ||
| View original record | 1044 To Rm. from Rm/CP. c. ~~Rm/Wym.~~ c. ~~Rm/CTS.~~ Rm/CP.7/LH.23.11.40. Bentley 80. No.1 Unit Work carried out at Clan 21.11.40. Please Note :- Bentley 80. No.1 Unit has been removed from Bentley… | ||
| scan0270 | Specification revision for Bentley Unit -B.80.No.6 fitted to chassis 4-B-50, detailing connecting rod changes. | ||
| View original record | To Rm. from Rm/CP. c. Rm/Wym. c. Rm/GTS. Rm/CP.11/LH.16.12.40 Bentley Unit -B.80.No.6. Bentley Chassis 4-B-50 Specification of the above Unit fitted to 4-B-50 Chassis 21.11.40 is revised as follows :-… | ||
| scan0271 | Notification regarding the removal of Bentley 80 No.6 Unit from Bentley Chassis 4-B-50. | ||
| View original record | To Rm. from Rm/CP. c.c. Rm/Wym. (crossed out) o.- Rm/OTS. (crossed out) Bentley 80. No.6 Unit Work carried out at Clan 16.1.41. Please note :- Bentley 80. No.6 Unit has been removed from Bentley… | ||
| scan0272 | Confirming the fitting of a Bentley 80.No.6 Unit to chassis 4-B-50. | ||
| View original record | To Rm. from Rm/CP. c. Rm/Wym. c. Rm/CTS. Rm/CP.8/LH.23.11.40. Bentley 80.No.6 Unit Work carried out at Clan 21.11.40. Please Note :- The above unit has been fitted to Bentley Chassis 4-B-50. Rm/CP. | ||
| scan0273 | Confirming the fitting of the Bentley 80 No.1 Unit to Bentley Chassis 4-B-50. | ||
| View original record | To Rm. from Rm/CP. c. Rm/Wym. [Strikethrough] c. Rm/CTS. [Strikethrough] Rm/CP.9/LH.18.1.41. Bentley 80.No.1 Unit Work carried out at Clan 16.1.41. Please note :- Bentley 80.No.1 Unit has been fitted… | ||
| scan0274 | Specification revision document for a Bentley 80 No. 6 Unit, detailing parts replaced and work carried out. | ||
| View original record | To Rm. from Rm/CP. c. Rm/Wym. c. Rm/CTS. Rm/CP.10/LH.12.8.41. Bentley 80. No.6 Unit Specification of the above unit is revised as follows :- Work carried out at Clan 10.8.41. Previous Specification… | ||
| scan0275 | Record of Dynamo and Ignition Distributor part changes and specifications. | ||
| View original record | - 2 - Cont'd:- Dynamo Armature. LOP.DB.1848 Bearing Brackets.LOP.DB.1861 Field Winding.LOP.DB.1864 Commutator. LOP.DB.1759 Removed. Ignition Distributor Delco Distributor No.662 N.X.2. B.800 Complete… | ||
| scan0276 | Confirming design agreements for a 16 Horsepower 6 Cylinder engine. | ||
| View original record | Jnr. from Rm. file B60 + 80 engines Rm.2/ML.28.11.40. 1044 16 HORSEPOWER 6 CYLINDER. Confirming our conversation with regard to this engine, we agree to the journal bearings being put up to 2 1/4". We… | ||
| scan0277 | Requirements for an endurance test on a B.60 engine unit. | ||
| View original record | 1044 To Rm/CTS. from Rm. Rm.2/ET.17.12.40. ENDURANCE TEST ON B.60 UNIT. -------------------------- Confirming our conversation of the other day, we want to run an endurance test on a B.60 engine when… | ||
| scan0278 | Report comparing test bed and road results for Cast Iron Engine Units with various configurations. | ||
| View original record | To: EV. c. JNR. c. CTS. c. Swal.Glasgow 1044 Rm/Wym.2/RH.17.12.40. Cast Iron Engine Units. We have been carrying out a series of tests with various cylinder heads, large and small throats, and… | ||
| scan0279 | List of specifications for a tested cylinder head. | ||
| View original record | - 2 - Rm/Wym.2/RH.17.12.40. The first cyl head tested on 3.B.50 was Exs.1383, sketch attached, which had the following specification (1) Local increase in throat area. (2) Graduating the increased… | ||
| scan0280 | Engine performance report detailing issues with a cylinder head, including detonation, ignition timing, and rough running. | ||
| View original record | - 3 - Hm/wm.c'RH.17.12.40. Good slow running and idling was obtained with a minimum tappet clearance of .012" Inlet and .012" Exhaust. We found this head infinitely worse than the B.111. head for… | ||
| scan0281 | Engine road performance tests, focusing on ignition timing, detonation, and governor units. | ||
| View original record | - 4 - The road performance with the ignition set at 14° FTDC, is only a little better than 2.E.50 car with a standard B.111 engine, compression ratio 6:2:1, and the ignition set at TDC. A little… | ||
| scan0282 | Test report on the performance and characteristics of the EB.3844 cylinder head. | ||
| View original record | - 5 - The second cylinder head tested was EB.3844, which is the original smaller throat head with a comp ratio of 6:25:1: and 124 cc's capacity. This head required .015" Inlet and .015" Exhaust tappet… | ||
| scan0283 | Engine detonation tests comparing different cylinder heads and compression ratios. | ||
| View original record | - 6 - Rm/Wym.2/RH.17.12.40. From the attached graph it can be seen that although its detonating characteristics are greater than the B.111 engine, it is like the B.111 head, not so susceptible to the… | ||
| scan0284 | Comparison of performance and engine smoothness between the EB.3844 and Exs.1383 heads. | ||
| View original record | - 7 - Em/Wym.S/RH.17.12.40. The performance of this head is practically the same as the 6:25:1 comp ratio head. The increase in comp ratio however, in the EB.3844 head does not seem to affect engine… | ||
| scan0285 | Test results and comparison of cylinder head EB.4706, noting its performance for slow running, detonation, and compression ratio. | ||
| View original record | - 8 - Rm/Tym.2/RH.17.12.40. We also tried another cylinder head EB.4706, some time ago, actually 27.6.39, sketch attached. This head was tried at L. Swindall's request for slow running andiidling, and… | ||
| scan0286 | Report comparing the performance of different cylinder heads and experiments to resolve engine 'running on' issues. | ||
| View original record | - 9 - Rm/Wym.2/RH.17.12.40. From all these tests it will be seen that the EB.3844 head at 6:25:1 comp ratio is the best head for all round performance, because although we lose the equivalent of .006"… | ||
| scan0287 | Series of engine tuning adjustments and performance test results. | ||
| View original record | - 10 - Rm/Wym./RH.17. 12. 40. 4. Fitted up cold air intake. 5. Inlet and exhaust valves run with .050" tappet clearance. 6. Ignition timing tried at 10° PTDC and 5° BTDC. 7. Sparking plug gaps tried… | ||
| scan0288 | New design for a B.60 & B.80 water pump casing. | ||
| View original record | To Mr. Walker (Pattern Shop) Copy to Mr. Kragg (Iron Foundry) 1044 Rm/CTS.5/ET.18.12.40. B.60 & B.80 WATER PUMP. This is to confirm that we have handed to you one print RE.1989 showing a new design of… | ||
| scan0289 | Request to the Tracing Office to trace 11 attached drawings and graphs and provide 5 prints of each. | ||
| View original record | Mrs. Tweedell, Tracing Office. 1044 Rm/Wym.12/ET.20.12.40. We should be obliged if you would trace the 11 attached drawings and graphs, and let us have 5 prints of each. Rm/Wym. | ||
| scan0290 | To the Pattern Shop regarding new patterns for a B.60 and B.80 water pump and modifications to an existing pattern. | ||
| View original record | 1044 To Mr. Walker.(Pattern Shop). Rm/CTS.8/BT.3.1.41. B.60 and B.80 Water pump. Some time ago we handed you the drawing RE.1989 for a pattern to suit a new water pump casing. We attach hereto… | ||
| scan0291 | Request to produce springs and spring rings for a B.60 and B.80 water pump. | ||
| View original record | To Mr. Base. 1044 1260 Rm/CTS.5/ET.4.1.41. WATER PUMP B.60 and B.80. ------------------ Will you please produce the following:- RE.2024 - Spring 12 off. RE.2025 - Spring ring 12 " RE.2026 - " " 12 "… | ||
| scan0292 | Material substitutions and makeshift parts for a Buick Type Water Pump due to phosphor bronze unavailability. | ||
| View original record | To Rm/ens. from Rm/HH. c. to Rm. Handwritten: carlin engine 1094 Rm/HH.1/SW.10.1.41. B.60 & B.80. PL.433 Buick Type Water Pump. Water Pump & Fan Sec.5160. With reference to the water pump springs… | ||
| scan0293 | Advice note from Machining Ltd. for the dispatch of six exhaust valves against order number 36358. | ||
| View original record | Telephone : Derby 2091. Telegrams : “ MACHINING DERBY.” MACHINING LTD. LEAPER STREET, DERBY. ADVICE NOTE D 8586 Date...15th January 1941... To...Messrs Rolls-Royce Ltd Clan Foundry, Belper. We have… | ||
| scan0294 | Instruction to the Iron Foundry to produce twelve pump casings for a B.60 water pump from a newly completed pattern. | ||
| View original record | To Mr. Kragg (Iron Foundry) 1044 Rm/CTS.9/ET.28.1.41. B.60 WATER PUMP. ----------------- The pattern has just been completed to produce:- RE.1989 - Pump Casing. Will you please have twelve castings… | ||
| scan0295 | To the Iron Foundry requesting castings for B.60 & B.80 water pump parts. | ||
| View original record | 1044 To Mr. Kragg (Iron Foundry) Rm/CTS.4/ET.30.1.41. B.60 & B.80. WATER PUMP ---------- This is to confirm our telephone conversation today concerning the following parts. RE.1989 - Casing. RE.2016 -… | ||
| scan0296 | Crankshaft torsional vibrations in B.60 and flat 12-cylinder engines. | ||
| View original record | To Wa/GSB. from Rm/TAS. 1044 Rm/TAS.4/ST.17.2.41. CRANKSHAFT TORSIONAL VIBRATIONS IN B.60 AND FLAT 12-CYLINDER ENGINES. --------------------------------------- Some time ago we received from you a… | ||
| scan0297 | Technical discussion on magnification factor at resonance, with formulas for stress and amplitude in crankshafts. | ||
| View original record | Rm/TAS.4/EP.17.2.41. - 2 - Moreover we were concerned mainly with comparing two engines and providing a fair basis for comparison was used. Actual quantities did not appear to matter so much. For… | ||
| scan0298 | Analysis of engine vibration amplitudes and torque settings for constant friction dampers, comparing 6 and 12 cylinder engines. | ||
| View original record | Rm/TAS.4/ST.17.2.41 - 3 - where α = relative amplitude at each crank corresponding to unit deflection at the free end, ΣJα² = moment of inertia of the entire system referred to the free end of the… | ||
| scan0299 | Technical analysis of engine vibration, focusing on damper energy dissipation, friction torque, and order vibrations. | ||
| View original record | Bm/TAS.4/ST.17.2.41 - 4 - The two fundamental expressions are as follows. The maximum energy dissipated per cycle by a constant friction damper is 1.273 J_d ω²α² in lb/cycle. and the corresponding… | ||
| scan0300 | Comparing torque component and vibration between 6 and 12 cylinder engines, with notes on future design. | ||
| View original record | Rm/TAS.4/ET.17.2.41. - 5 - D. It is correct to state that the torque component for the 3rd order vibration on the 6 cylinder will be greater than that for the 6th order on the 12 cylinder, although… | ||
| scan0301 | Commentary on a memo concerning crankshaft torsional vibrations in B.60 and Flat 12 engines. | ||
| View original record | COPY. Comments on Memo on Crankshaft Torsional Vibrations in B.60 and Flat 12 engines. (Rm/TAS.1/T.9.12.40). ------------------------------------------------------ A. On Page 2 the expression given… | ||
| scan0302 | Series of engine power and camshaft comparison graphs for various engine models. | ||
| View original record | Top Left Graph: B.80 POWER THREE 1-5/8" S.U. CARBS. IGN. SYSTEM: "MOCK UP" CYLINDER HEAD PIECE NO. EB.4091. CAPACITY 125 CCS. C/R 6.35:1 CAMSHAFT PIECE NO. E.B.4105 VALVE TIMING AT .030 TAPPET… | ||
| scan0303 | Four engine performance comparison graphs for Wraith, Ripple, Corniche, and Phantom III models. | ||
| View original record | WRAITH W.III Nº 8 B.H.P. B.M.E.P. R.P.M. CYL. HEAD EW 1922 (130 cc's) C/R = 6:1 CAMSHAFT VALVE TIMING @ .025. I.O. 6° AT. EO 42° BB. I.C. 44° AB. EC 5° BT. INDN. SYSTEM STROMBERG D.C. 42 CARB. ON 1.6… | ||
| scan0304 | Performance graphs for B.80, B.60, and B.V. engines under various test conditions. | ||
| View original record | Graph 1 (Top-Left): { Title: B.80 Nº1, Y-Axis: B.H.P., B.M.E.P., X-Axis: R.P.M., Specifications: CYL. HEAD E.B. 4088 C/R - 6.3:1 CAMSHAFT E.B. 4105 VALVE TIMING @ .030" I.O. 15° A.T. E.O. 42° B.B.… | ||
| scan0305 | Specification for a new 8-cylinder B.80 aluminium engine, detailing design changes. | ||
| View original record | Ev. and Jnr. from Rm. c. Rm/HH. c. Rm/OTS. Engines B.60 + B.80 1044 SPECIFICATION OF ALUMINIUM. B.80. ENGINE. We are about to instruct an 8-cylinder aluminium engine. This engine will be described as… | ||
| scan0306 | List of 15 requested features for a new design, including engine and drivetrain components. | ||
| View original record | - 2 - Cont'd. We consider that the new rod should be designed as if it were going to be machined all over, and then, if and when we can get forged-to-size rods, we will add the necessary allowance.… | ||
| scan0307 | Modified combustion chamber design (PL.525) for 3 1/4 bore engines. | ||
| View original record | To Rm. from Jnr. c. to Rm/HH. Handwritten: B60 & B80 cast iron FB engine Handwritten: 1044 Jnr.3/SW.28.3.41. Alum B.80 - 3 1/4 bore. Refer - Rm.7/ML.18.3.41. Herewith design PL.525, showing the… | ||
| scan0308 | Production of universal patterns for various 6-cylinder engines. | ||
| View original record | Rm/H.H. Car. 1044 Please let me know when these drawings have been despatched. TB/EW/WP.12.5.41. UNIVERSAL PATTERN FOR THE PRODUCTION OF 3 3/4, 3 1/2, 3 1/4, and 75 mm. BORE - 6-CYLINDER.ENGINES… | ||
| scan0309 | Experimental super reach spark plugs and their suitability for different cylinder heads. | ||
| View original record | 1044 . To Rm/Wym. from Jnr. c. to Rm/RC. Jnr.1/SW.14.5.41. B.60. Super Reach Spark Plug. In regard to the Experimental plugs, which are on order, these are suitable for the "ORIGINAL" cylinder head.… | ||
| scan0310 | Analysis of the potential causes for a central journal bearing failure. | ||
| View original record | 1046 To Rm. from Jnr. Jnr.12/ET.19.5.41. B.80 FAILURE OF CENTRAL JOURNAL BEARING. We can detect from the deformation of the crankcase that the misalignment has taken place at the weakest part of the… | ||
| scan0311 | Requesting the re-boring of bearing houses for a B.60 block. | ||
| View original record | To: HPS. from Rm. 1044 Rm.6/RH.26.5.41. RE BORING OF BEARING HOUSES.B.60. As discussed with you, I am sending you a B.60 block. Will you please open out the bearing bores as per the attached drawing.… | ||
| scan0312 | Comparison table of camshaft acceleration, deceleration, and tappet velocity data for various engines. | ||
| View original record | To Rm. from Rm/TAS. Copy to Jnr. Rm/CTS. B.60 file 104f. Rm/TAS.6/ST.26.5.41. GENERAL INFORMATION ON CAMSHAFTS A - MAX. ACCELERATION AND DECELERATION. in feet/sec^2 @ 1000 R.P.M.… | ||
| scan0313 | Technical discussion on cam loading, valve lift, and valve striking velocities. | ||
| View original record | Rm/TAS.6/ET.26.5.41. 2. A. If the acceleration figures illustrated are to be thought of in terms of maximum loading of the cam, they do not mean very much without an accurate analysis of the valve… | ||
| scan0314 | Design of a single inlet valve spring to replace a double spring, detailing changes in poundage and stress. | ||
| View original record | Handwritten top: Rm/CTS. 1044 OR 18th We should get these springs made in straight carbonwire Rm We Typed: To Rm. c. to Rm/HH. [Rm/HH is crossed out] SECRET. Jnr.7/JH.20.5.41. SINGLE INLET VALVE… | ||
| scan0315 | Mileage report for cast iron engines and other components, split into B.80 and B.60 units. | ||
| View original record | CAST IRON ENGINE MILEAGE 1044. 5-6-41 B.80 UNITS. Mileage 12.1.41. 30.G.VII. 63084. 33.G.VII. 15951. 11.B.V. 21734. 4.B.50. 15106 Mileage 12.1.41 To 5.6.41 7298 (7.5.41) Nil. (U.S.A) Nil. (U.S.A)… | ||
| scan0316 | Forwarding blueprints for an R.A.F. 80 Alum. Engine cylinder liner. | ||
| View original record | To: HPS. from Rm/HH c. Rm. Fv. 10264 - Rm/HH.1/RH.30.6.41. R.A.F. 80 Alum. Engine. Crankcase & Bearings. - Sec. 5000 We forward you herewith 3 blue prints of the following, detailed to suit the above… | ||
| scan0317 | Test results on B.60 oil pumps regarding improved oil pressure at idling speed by reducing gear clearance. | ||
| View original record | 1094 To Rm. from Rm/Wym. c. to Rm/JNR. c. to Rm/OFS. SECRET. Rm/Wym.S/JH.1.7.41. In reply to memo. Jnr.7/SW.13.5.41. we have now obtained some figures on B.60 Oil Pumps, which show that with reduced… | ||
| scan0318 | Test results for B.60 Oil Pumps, showing increased oil pressure with reduced end float of gears. | ||
| View original record | 1044 To Rm. from Rm/Wym. c. to Rm/JNR. c. to Rm/OTS. SECRET. Rm/Wym.3/JH.1.7.41. In reply to memo. Jnr.7/SW.13.5.41. we have now obtained some figures on B.60 Oil Pumps, which show that with reduced… | ||
| scan0319 | Modification to the bye-pass filter pipework for Cast Iron Engines B.40-60-80, replacing banjo joints with olive joints. | ||
| View original record | To: Rm. from Jnr. c. Rm/HH. [HH is struck out] Rm/Wym. [Handwritten Annotation] Rm/Wyman Please get made up & test Rm [Typed Content] 1044 Jnr.1/RH.2.7.41. Pipe Work for Bye-pass Filter. Cast Iron… | ||
| scan0320 | Issuing prints for bevel gears for a steering drive mock-up on the Senior Range Rear Axle. | ||
| View original record | 1044 To Rm. c. to Rm/HH. c. to Ev. Ev/Tln.5/JH.7.7.41. Senior Range Rear Axle. We issue herewith for printing and filing PL.717, so called "bevel gears for steering drive mock up." No detailing is… | ||
| scan0321 | Outlining a scheme and modifications for an interlocking mechanism in a Senior Range Gearbox. | ||
| View original record | To Rm/TFF. from Rm/HH. c. to Rm/Wym. c. to Rm. c. to EV. 3090 Rm/HH.10/SW.6.11.41. Senior Range Gearbox. Sec.6030 - Gearbox & Actuation. PL.952 - Scheme showing method of Interlocking. We send you… | ||
| scan0322 | The production of lightened connecting rods using blueprints from existing parts. | ||
| View original record | Chassis To Rm/CRS. from Rm/HH. c. to Rm. c. to Ev. 1044 Rm/HH.2/SW.11.7.41. Lightened Conn. Rods in accordance with PL. 695. Please receive herewith two blueprints of RE.2634/5, for HPS. to produce… | ||
| scan0323 | Modification of a B.60 crankcase, including boring out bearing housings and supplying a new main bearing. | ||
| View original record | To: HPS. from Rm/CTS. 1094 Rm/CTS.1/RH.12.7.41. B.60 Crankcase. Confirming your agreement with Rm. that you would bore out the bearing housings of B.60 No.2, top half crankcase. We send you herewith… | ||
| scan0324 | Valve bounce and surge issues for B.60 & B.80 engines. | ||
| View original record | 1094 To Rm. from Jnr. c.c. to Rm/TAS. Jnr.10/JH.16.7.41. VALVE BOUNCE & SURGE B.60 & B.80. Ref. Rm.1/HH.11.7.41. To fit the Buick double valve springs to the inlet valves would result in the engine… | ||
| scan0325 | Technical note on engine valve train components, specifically push rod design and performance. | ||
| View original record | -2- Jnr.10/JH.16.7.41. With a tubular steel push rod an hydraulic adjustment is essential, because the expansion rate of the rod, and the comparatively cool inlet valve stem cannot compensate for the… | ||
| scan0326 | Retaining washer and oil cap for a crankshaft with increased journal bores. | ||
| View original record | Is this being instructed for our allum engine? 1044 Chm yes Holb To Px from Rm/HH. c.c. to Ev. c.c. to Jnr. Rm/HH.7/SW.16.7.41. B.80. PL.762 shows a retaining washer for the spigot bearing, also an… | ||
| scan0327 | Calculations and test results for inlet valve bounce. | ||
| View original record | To Rm. c to Jnr. Rm/TAS.12/JH.16.7.41. 1044 B.60 Inlet valve bounce. METHOD. The following calculations are made on the assumption that valves bounce when the inertia of the decelerating valve parts… | ||
| scan0328 | Performance analysis of a lightened push rod compared to a standard set up. | ||
| View original record | -2- Rm/TAS.12/JH.16.7.41. The lightened push rod alone gives a 210 r.p.m. advantage with the Halford tappet, and 220 r.p.m. with a standard set up. This is better understood when it is known that a… | ||
| scan0329 | Issues with valve bounce, spring surge, and engine idling, with proposed solutions and actions. | ||
| View original record | 1098 To Jnr. from Rm. Copy to Rm/TAS. VALVE BOUNCE AND VALVE SPRING SURGE B.60 AND B.80. ------------------------- I have read with interest your note and Rm/TAS.'s note of the 16th instant. The… | ||
| scan0330 | From the Iron Foundry regarding B.40 Engine cylinder block compositions and the feasibility of a new aluminium casting. | ||
| View original record | Rm. TB/KNG.1/JT.17.7.41. 1044 Iron Foundry. With reference to our conversation of 16.7.41 re B.40 Engine (75 m/m), the cylinder blocks we made are as follows :- RE.107 - 1 in standard 1% Nickel Iron… | ||
| scan0331 | Modification to the rocker oil feed filter for the R.A.F. B.80 Alum engine. | ||
| View original record | 1044 To Rm. from Rm/HH. d. to Ev. c. to Jnr. Rm/HH.2/SW.26.7.41. R.A.F. B.80 Alum. Scheme FL.769, has been done to incorporate a filter in the rocker oil feed, to ensure a clean oil supply to the… | ||
| scan0332 | Blueprint for a Crankshaft Fan Pulley made of Ferobestos for a B.60 engine. | ||
| View original record | Rm/GB. Wrei Ferodo's produce? Rm 1044. To Rm. from Rm/HH. c.c. to Rm/GB. Rm/HH.5/SW.29.7.41. Please receive herewith one blue- print of RE.2706 - Crankshaft Fan Pulley in Ferobestos. This pulley to be… | ||
| scan0333 | Specification revision for a Bentley 60 Unit No.1 on a Lorry Chassis, detailing changes to connecting rods and clutch. | ||
| View original record | 1044 To Rm. from Rm/CP. c.c. Rm/Wym. c.c. Rm/OTS. Rm/CP.8/LH.29.7.41. Bentley 60 - Unit No.1 Bentley Chassis 1-B-50 (Lorry) Specification of the above unit is revised as follows :- Work carried out at… | ||
| scan0334 | The dispatch of blueprints for the R.A.F. B.80 Alum engine. | ||
| View original record | 1044 To Rm/wym. from Rm/HH. c. to Rm. Rm/HH.4/SW.30.7.41. R.A.F. B.80 Alum. In order that you can ascertain which parts will require manufacturing for the above engine, we are sending you herewith one… | ||
| scan0335 | Listing blueprints being sent for the R.A.F. B.80 Alum engine. | ||
| View original record | To Rm/Wym. from Rm/HH. c. to Rm. FILE 104f Rm/HH.4/SW.30.7.41. R.A.F. B.80 Alum. In order that you can ascertain which parts will require manufacturing for the above engine, we are sending you… | ||
| scan0336 | Provision of blueprints for the R.A.F. B.80 Alum. crankcase and cylinders. | ||
| View original record | To HPS. from Rm/HH. c. to Rm. c. to Dr. 1044 Rm/HH.1/SW.5.8.41. R.A.F. B.80 Alum. Please receive herewith three blueprints of :- EB.5079 (2 sheets) Crankcase & Cylinders. so that the machining of the… | ||
| scan0337 | The specification and proposed rebuild of the B.60 No.2 engine. | ||
| View original record | To HM/Wym. from Rm. Copy to Rm/TFF. 1044 Rm.9/ET.16.8.41. Herewith an understandable specification of the proposed rebuild of the B.60 No.2. Will you please progress the completion of the necessary… | ||
| scan0338 | Investigation into suspected cracks and inclusions on a Bentley V8 cylinder crankshaft. | ||
| View original record | C.T.S. Any signs of bearing failure since Crank changed? To: Rm. 10244 Fte Rm BENTLEY V. re:- 8 Cylinder Crankshaft I succeeded in locating the crankshaft late last week, and had a look at the centre… | ||
| scan0339 | Suggesting the testing of a Cotal gearbox on the Ripple car, with potential engine and brake modifications. | ||
| View original record | To Ev. from Rm. Copy Ra/Wym. 1044 COTAL BOX. It seems to me that we are missing an opportunity of running a Cotal box on one of our cars during the war, to establish its re-liability and performance,… | ||
| scan0340 | The running and issues of two experimental cars, 9.B.V. and 4.B.50. | ||
| View original record | To Rm/Wym. From Rm. 1044 RUNNING OF EXPERIMENTAL CARS. 9.B.V. - London and back Friday, 15th August. 6 gallons of petrol went into this car. The near side front door is beginning to rattle badly.… | ||
| scan0341 | Request to investigate the repeated failure of the flywheel on 8-cylinder cars. | ||
| View original record | To: Rm/GB. from Rm. 1044 Rm.4/RH.22.8.41. FAILURE OF FLYWHEEL ON 8-Cyl.CARS Will you please investigate the repeated failure of the flywheel on 30 G.VII. We should first like you to go into the… | ||
| scan0342 | Wear on a car and proposing a test by blocking lubricating holes in certain cylinders. | ||
| View original record | To Rm/Wym. from Rm. 1044 Rm.3/ET.22.8.41. I was interested in the wear on Lp.'s car. I presume it was running with lubricating holes in the connecting rods. If this is so, I should like it to continue… | ||
| scan0343 | Production plan for rationalized cylinder blocks for a range of engines. | ||
| View original record | To: Rm/HH. from Rm. c. Rm/CTS. 1044. Rm.5/RH.22.8.41. RATIONALIZED CYLINDER BLOCKS At the present time, we have an admirable opportunity of getting all the castings we want out of the Iron Foundry… | ||
| scan0344 | Examination and causes of a cracked crankshaft centre bearing. | ||
| View original record | 1044 To: Rm...Glan Foundry, Belper. By.1/KMS.22.8.41. Re:- Crankshaft - Cracked Centre Bearing Further to my previous memo on this subject, I have been able to examine the shaft under higher… | ||
| scan0345 | Notification regarding the removal of gearbox No.1-B-V and the fitting of gearbox 10-B-V to chassis 1-B-50. | ||
| View original record | 1044 To Rm. from Rm/CP. c. to Rm/Wym. Rm/CP.7/LH.27.8.41. Chassis 1-B-50 Engine Unit B.60 - No.1 Gear Box 10-B-V Please note that Gear box No.1-B-V has been removed fromnthe above Chassis. Gear Box… | ||
| scan0346 | Parts list for an R.A.F. B.80 Alum 3 1/2' Bore engine, concerning S.U. carburetter components. | ||
| View original record | To ~~Rm/Wym.~~ from Rm/HH. c. to ~~Rm/GWB.~~ c. to Rm. 1004 Rm/HH.3/SW.27.8.41. R.A.F. B.80 Alum. 3 1/2" Bore. The following parts for three S.U's, have been detailed in accordance with PL.311. Please… | ||
| scan0347 | New and previously issued parts for a Senior Range R.A.F. B.80 engine. | ||
| View original record | To HFS. from Rm/HH. c. to Rm. c. to Rm/OTS. c. to Rm/Wym. SENIOR RANGE 1044 Rm/HH.1/SW.27.8.41. R.A.F. B.80 Alum. 3¾" Bore. In accordance with memo ref. Rm.7/ML.18.3.41. and schemes, PL.433, PL.525,… | ||
| scan0348 | Continued parts list page, showing part numbers, descriptions, and quantities. | ||
| View original record | -cont'd- - 2 - Rm/HH.1/SW.27.8.41. Sec.5060. RE.2541 Inlet Valve 8 Off RE.2542 Plug 8 " RE.2543 Valve Spring Washer 8 " RE.2718 Push Rod 8 " RE.2719 Push Rod End 8 " RE.2544 LOP. Valves & Fittings.… | ||
| scan0349 | Parts list with quantities and a note about manufacturing requirements and blueprint orders. | ||
| View original record | -cont'd- - 3 - Rm/HH.1/SW.27.8.41. Sec.5200 (cont) RE.2692 Brazing Assembly 1 Off RE.2693 Filter Body 1 " RE.2694 Cover - Filter 1 " RE.2695 Restrictor Plug 1 " RE.2696 Support - Filter 1 " RE.2701… | ||
| scan0350 | Correspondence regarding an incorrect parts delivery of brake drums for chassis B.34.AW. | ||
| View original record | To: Br.(Hythe Road) from Rm/Clm. Rm/Clm.4/RH.30.8.41. 1044 With regard to the second pair of brake drums which we sent down for B.34.AW, we apologise for sending rear ones instead of fronts. However,… | ||
| scan0351 | Examination of an obstructed oil drilling in a B.80 No.6 Crankcase. | ||
| View original record | 1044 To Rm. from Rm/TAS. c.c. to Rm/Wym. [text struck through] c.c. to Rm/OTS. [text struck through] Rm/TAS.1/JH.11.9.41. B.80 No.6. Crankcase. We have examined this crankcase and found the oil… | ||
| scan0352 | Analysis of possible causes for a series of engine failures, focusing on crankshafts, bearings and oil system blockages. | ||
| View original record | -2- Rm/TAS.1/JH.11.9.41. Until it was suggested by Jnr. that the oil hole could be obstructed despite the oil flow test a number of other possibilities had been considered. In the remote event of the… | ||
| scan0353 | Providing instructions for completing pattern work to produce B.60 six-cylinder engine crankcase castings. | ||
| View original record | To: Mr. Walker (Pattern Shop) c. Mr. Knagg (Foundry) c. Rm/Wym. Rm/CTS.1/RH.12.9.41. CAR ENGINE PATTERNS (Six Cylinder Engn.) 1094 Confirming our recent conversation re the B.60 crankcase. We send you… | ||
| scan0354 | Photograph of connecting rod bearings from a B80 No. 1 Unit, run in a 4 B50 car. | ||
| View original record | 1044 To Rm. from Rm/Wym. Rm/Wym.1/OH.15.9.41. Herewith attached photograph shewing the condition of the conn: rod bearings in B80 No. 1 Unit, run in 4 B50 car. The photograph heading is… | ||
| scan0355 | Photographic record of A.C.9. connecting rod bearings after mileage accumulation and test bed hours. | ||
| View original record | 4.B.50. 29th AUGUST, 1941. A.C.9. CON. ROD BEARINGS. 20338 MILES. + 157 HOURS 40 MINS. ON TEST BEDS. ENGINE NO. (B.80. No.1.) | ||
| scan0356 | The replacement of a gearbox on Bentley Chassis 12-B-V, engine unit Silver Ripple No.2. | ||
| View original record | To Rm. from Rm/CP. c.c. to Rm/Wym. 1042 Rm/CP.5/LH.16.9.41. Bentley Chassis 12-B-V Engine Unit Silver Ripple No.2. Work carried out at Clan 15.9.41. Gear Box E.2 - BL. Please note Gear Box B-V-No.11… | ||
| scan0357 | Work on the Silver Ripplet Chassis 1-RT-1, specifically the removal and fitting of a gearbox. | ||
| View original record | To Rm., from Rm/CP. 1024 Rm/CP.6/LH.16.9.41. Silver Ripplet Chassis 1-RT-1 Bentley 40. Unit No.1 Work carried out at Clan 15.9.41. Gear Box 11-B-V Please note mock up box has been removed from the… | ||
| scan0358 | Parts to be manufactured for an R.A.F. B.80 Alum engine. | ||
| View original record | To HPS. from Rm/HH. c. to Rm. c. to Rm/GTS. c. to Rm/Wym. Whinch 1044 Rm/HH.1/SW.16.9.41. R.A.F. B.80 Alum. 3 1/4" Bore. Further to our memo reference Rm/HH.1/SW.27.8.41., the following are parts to… | ||
| scan0359 | Continued list of parts with their respective part numbers, descriptions, and quantities. | ||
| View original record | -cont'd- - 2 - Rm/HH.1/SW.16.9.41. Sec.5080. E.77975 Washer - Tappet Cover 6 Off Sec.5090. RE.1584 Plug 1 Off Sec.5160. RE.2017 Fan Flange 1 Off EB.4204 Joint 1 " Sec.5180. EB.4116 Wheelcase 1 Off… | ||
| scan0360 | Confidential memo discussing the reluctance to dismantle a chassis due to a scarcity of skilled workmen. | ||
| View original record | Private & Confidential S/W Rm...from C. 1044 C3/C17.9.41 Re B-V. used by Lp. ------ Rm8/ET9.9.41. I note what you say concerning this, but unless you think it absolutely essential I am a bit reluctant… | ||
| scan0361 | Scheme for fitting a Renold Duplex chain driven camshaft to a B.60 engine. | ||
| View original record | To Ev. from Rm/HH. c. to Rm. c. to Jns. 1044 Rm/HH.3/SW.18.9.41. B.60 Engine. Chain Driven Camshaft. PL.862 Mod. to PL.165 using existing camshaft. Rm We have produced the above scheme in order that a… | ||
| scan0362 | Suggesting a chassis examination be postponed until the end of the war due to a labour shortage. | ||
| View original record | Private. To C. from Rm. 1044. B.V USED BY Lp. -------------------- Rm.9/ET.20.9.41. With reference to G.3/C.17.9.41. In view of your labour shortage, I suggest this chassis stands until the end of the… | ||
| scan0363 | The specifications of a 14 HP car, including its speedometer, wheelbase, and power/weight ratio. | ||
| View original record | To Sg. from Rm. 1044 Rm.1/ST.20.9.41. 14 H.P. CAR. With reference to Sg.9/KW.17.9.41 and Sg.6/KW.18.9.41. SPEEDOMETER. The paper face on the speedometer reads the correct M.P.H. WHEELBASE. The car is… | ||
| scan0364 | Listing blueprints being sent for an R.A.F. B.80 Alum engine with a 3 1/4' bore. | ||
| View original record | To HPS. from Rm/HH. c. to Rm. c. to Rm/OBS. c. to Rm/Wym. 1044 Rm/HH.6/SW.20.9.41. R.A.F. B.80 Alum. 3 1/4" Bore. To complete details required for this engine, we are sending herewith two blueprints… | ||
| scan0365 | Parts list for a Joint Washer and a Water Pump Casing with quantities. | ||
| View original record | - 2 - Sec.5205. EB.3953 Joint Washer 1 Off Sec.5160. RE.1989 Water Pump Casing 1 Off. Rm/HH. | ||
| scan0366 | Acknowledging a previous message and confirming instructions will be sent to Hythe Road. | ||
| View original record | S/W Rm...from C. Senior Range [Handwritten and crossed out] 1044 [Handwritten] C3/C23.9.41 B-V used by Lp. [Handwritten] Thanks for your Rm.9/ET20.9.41 and I will instruct Hythe Road accordingly.… | ||
| scan0367 | Parts required for a B.60 2nd Engine, focusing on a Renolds chain-driven camshaft modification. | ||
| View original record | 1044. To Rm/Wym. from Rm/HH. c. to Rm. c. to Am/OTS. c. to Jnr. Rm/HH.3/SW.23.9.41. re B.60 2nd Engine. Renolds Chain Driven Camshaft. PL.862 - Mod to PL.165 to use existing camshaft. Please find… | ||
| scan0368 | Continuation of a parts list detailing component replacements, exclusions, and modifications for an experimental build. | ||
| View original record | -cont'd- - 2 - Rm/HH.3/SW.23.9.41. Sec.5090 (cont). Remainder of parts to LOP.EB.4314 except that the following will not be required :- EB.4023 Spring - Camshaft End. K. 4008 Nut - 4 Off. Sec.5170.… | ||
| scan0369 | Specification revision for a Bentley chassis, detailing changes to the flywheel and clutch assembly. | ||
| View original record | To Rm. from Rm/CP. c.c. to Rm/Wym. o.v. to Rm/OTS. 1044 Rm/CP.6/LH.24.9.41. Bentley Unit 80.No.1 Bentley Chassis 4-B-50. Specification of the above unit is revised as follows :- Work carried out at… | ||
| scan0370 | Confirming the price of six steering cams is reasonable. | ||
| View original record | 1044. To. Roy/AES. from Rm/FJH. Rm/FJH. 5/n. 6.10.41. Re your memo Roy/AES. 8/Mn. 3.10.41. We consider the price of 50/0d each, for the six steering Cams M.22313. is reasonable. Rm/FJH. | ||
| scan0371 | Requesting a report on a chain drive bench test and cylinder castings for the Senior Rationalised Range. | ||
| View original record | 1044. To: Rm/CTS. from Rm. Rm. 7/h. 7.10.41. SENIOR RATIONALISED RANGE. Will you please let me have a report on the position of the chain drive which is being prepared for bench test, and also the six… | ||
| scan0372 | Minutes of a chassis meeting held at Clan Foundry regarding mileage, faults, and engine development. | ||
| View original record | 1044, 1212 700 To Sg. & Hs. from Rm. Rm.1/H.9.10.41. MINUTES OF CHASSIS MEETING HELD AT CLAN FOUNDRY ON 7th OCT. 1941. --------------------- Present at the Meeting:- Sg. & Rs. Rm. HPS. Rm/EAG. Ev.… | ||
| scan0373 | Minutes of a chassis meeting held at Clan Foundry discussing mileage, faults, and engine developments. | ||
| View original record | To Sg. & Hs. from Rm. Rm.1/H.9.10.41. = MINUTES OF CHASSIS MEETING HELD AT CLAN FOUNDRY ON 7th OCT. 1941. Present at the Meeting:- Sg. & Hs. Rm. HPS. Rm/EAG. EV. Rm/Hym. HPS/HJ. Rm.4/ET.5.10.41 was… | ||
| scan0374 | Senior range engine development, chain sprockets for the Mark VI, and V.60 castings. | ||
| View original record | Chem's To: Rm/CTS. from Rm. Rm. 8/h. 11.10.41. 1044. I have your note about senior range engine development. We get some chain sprockets in a few days for Mark VI. without using HPS. I believe we… | ||
| scan0375 | Memo on chassis engine development, detailing parts delays and a testing strategy to address 'running on'. | ||
| View original record | Rus. Senior Range. 1044 Chassis engine development. (Re memo. Ru.7/H.7-w-41) Bbo. No. 2. This engine was put back a long way by the decision to fit the chain drive to the camshaft. The forgings for… | ||
| scan0376 | Progress report on the production of new six-cylinder engines, detailing castings, pistons, and gudgeon pins. | ||
| View original record | New six-cylinder engines. We expect to have all the castings for cylinders "and" "top half crankcases" completed within the next six weeks. The first size (3 3/4) is being cast this week. A little… | ||
| scan0377 | Confirming a telephone message, requesting the collection of patterns from the Iron Foundry to produce one 6-cylinder engine casting in aluminium. | ||
| View original record | To Mr. Edwards (Alum. Foundry) 1044 Rm/CTS.3/ET.16.10.41. CAR ENGINE PATTERNS. --------------------- Confirming a telephone message with your Mr. Hawley, will you please collect the patterns from the… | ||
| scan0378 | Requesting the relocation of wheel changing kits and the fixing of S.U. starter carburettors on experimental cars. | ||
| View original record | To: Rm/Wym. from Rm. Rm. 9/h. 21.10.41. 1044. Will you please : (a) Make sure that all the wheel changing kits at present in the boots of various experimental cars, get fitted up under the bonnet as… | ||
| scan0379 | Need to prototype the largest version of a new post-war six-cylinder engine. | ||
| View original record | To HPS. from Rm. c. to Rm/CTS. 1044 Rm.4/SW.14.12.41. B.60 Engines. It will be remembered that at a recent Car conference, it was agreed that we should have at least one Prototype of all the… | ||
| scan0380 | Design and fitment of a special 25-gallon petrol tank for the Senior Range and Bentley 5 chassis. | ||
| View original record | 1044 TRm. to Rm/HH. to EV. to Rm/FJH. to Rm/Wym. EV/JD.2/KO.9.1.42. Senior Range. Special 25 gallon Petrol Tank. We attach to Rm/HH's copy the original of :- PL.1101 (2 sheets) Special 25 gallon… | ||
| scan0381 | List of failures experienced on car unit 3-B-60 No.4 up to a mileage of 50,524. | ||
| View original record | To Rm. from Rm/Wym. Chassis 1044 Rm/Wym.11/OH.18.2.42. 3-B-60 Car Unit B.60 No.4. We herewith give you a list of all the failures experienced on the above car during its mileage to date of 50,524.… | ||
| scan0382 | The fitting and performance of a cast iron water pump and rubber glands. | ||
| View original record | —cont’d— -2- Rm/Wym.11/OH.18.2.42. Cast Iron water pump was fitted at 32902 miles and has given no trouble to date. Rubber glands were fitted to the front shock absorbers at 22491 miles and no further… | ||
| scan0383 | Accident damage repairs and part replacements for Chassis 30.G.VII Unit B.80.No.5. | ||
| View original record | Chassis HA 1044 To Rm. from Rm/Wym. Rm/Wym.12/OH.12.3.42. Chassis 30.G.VII Unit B.80.No.5. Work carried out at Clan Foundry 23.2.42 - 9.3.42. Speedometer Reading 94495. Total Mileage of Chassis Parts… | ||
| scan0384 | Inspection and repair report detailing work on the front suspension, front dampers, and steering components. | ||
| View original record | -2- Rm/Wym.12/OH.12.3.42. Front Suspension (Cont'd) it was decided to reject this lever, and fit two new levers of modified type. Piece No. FW.2060/1. The near side Triangle Bearing Pin was bent and… | ||
| scan0385 | Repairs and maintenance on a vehicle's steering, radiator, hubs, brakes, and engine. | ||
| View original record | -3- -Cont'd- CROSS STEERING TUBE AND BALL PINS. The near side cross tube was slightly bent, this has been straightened, also the near side Ball Pin was damaged on the thread this has been replaced by… | ||
| scan0386 | Repairs to an engine, bonnet strips, and battery, including a list of personnel involved. | ||
| View original record | -4- Engine (Cont'd) Induction pipe removed to replace broken stud to carb flange, new stud fitted, this is a temporary measure only, the thread is partially stripped and the tapped hole has broken… | ||
| scan0387 | Specification of revisions for a Silver Riplet Chassis 1-RT-1 and Bentley 40 Unit No.1. | ||
| View original record | To Rm. from Rm/CP. c.c. to Rm/Wym. 1044 Rm/CP.4/LH.26.3.42. Silver Riplet Chassis 1-RT-1. Bentley 40. Unit No.1. Specification of the above Chassis is revised as follows :- Work carried out at Clan… | ||
| scan0388 | Suggestions for detail design simplification and rationalisation of the chassis and B.80 engine. | ||
| View original record | Chassis 1044 Private and Confidential. B3. Psn. 2/MD. 3.11.43. To:- RM. M/LS. Blny. WG. c.Sg. c.Hs. Detail Design Simplification to Rationalised Chassis. Based on the photographs which we have… | ||
| scan0389 | List of engineering suggestions for engine and chassis design modifications, based on photographs. | ||
| View original record | 2. (6) Consideration should be given to using a solid crankshaft without boring the pins or journals as there is an appreciable saving here. If it is found necessary to bore the pins and journals then… | ||
| scan0390 | Outlining the main problems with the 16 HP engine and proposed testing solutions. | ||
| View original record | 1044 CONFIDENTIAL. To: Wym. from Rm. Rm. 4/h. 12.1.44. c.c. to FJH/CTS. 16 H.P. ENGINE. It is clear that we have three main problems in connection with this unit at the moment : 1. The evolution of a… | ||
| scan0391 | Improvement of volumetric efficiency and flow through high power engine inlet valves and ports. | ||
| View original record | 1044 To: Jnr. from Rm. Rm. 3/h. 15.1.44. c. to FJH. c. to FJH/CTS. FLOW THROUGH HIGH POWER ENGINE INLET VALVE AND PORT. We have always been very disappointed with the power output of the high power… | ||
| scan0392 | Prints and a revised index sheet for a 3½ bore 8 cylinder engine. | ||
| View original record | 1044 To: Wym. from Ev/HH c. to Rm. Ev/HH.2/MA.28.1.44 3½ bore 8 Cylinder Engine Please receive herewith the print of each of the following LOP's, and revised Index Sheet. The remainder of the LOP's… | ||
| scan0393 | Re-drawn parts for a 3 1/4' bore 8-cylinder aluminium engine. | ||
| View original record | To. Wym. from Ev/HH. 1044 Ev/HH.1/GAB.29.1.44. c. to. Rm. 3 1/4" Bore 8 Cylinder Alum. Engine. Further to issue memo. reference Ev/HH.1/GAB.13.1.44. please receive herewith the print of each of the… | ||
| scan0394 | Past experiments and future considerations for improving engine volumetric efficiency, camshaft duration, and idling. | ||
| View original record | 1044 To: CJS. from Rm. c. to Jnr. c. to Ev/MGA. Rm. 2/h. 5.2.44. B.80. VOLUMETRIC EFFICIENCY. I was disappointed with your summary of the problem of improving the volumetric efficiency of the engine.… | ||
| scan0395 | Potential engine improvements related to spark plug position, valve port efficiency, and cylinder head design. | ||
| View original record | - 2 - 3. SPARK PLUG POSITION. The high-power head is highly critical to spark plug position and I think we may waste time if we start moving this about in order to improve the inlet port. 4. ORIFICE… | ||
| scan0396 | The production of prototype Carrier (B80) engines and associated tooling as part of a post-war program. | ||
| View original record | 1044 To: Hs. from Rm. Rm. 1/h. 9.2.44. CARRIER ENGINES. (B80 Engines) As you know, we have a contract from the Ministry of Supply to produce prototype Carriers. Owing to rationalisation, 70% of the… | ||
| scan0397 | Crankshaft forgings for the B.80 engine and the associated drawings. | ||
| View original record | 1044 1116 To: EM/Les. from Rm. Rm. 24.2.44. Rm/h. 2. HPS. will be following up crankshaft forgings for the B.80. and Hs. has agreed that the dies shall be sunk immediately. Herewith the drawings which… | ||
| scan0398 | Confirming a telephone conversation regarding a suspended order for an 8-cylinder crankshaft forging from English Steel. | ||
| View original record | 1044 1116 To :- Rm. (Clan Foundry). EM/Les.6/JB. 21.2.44. 8-CYLINDER CRANKSHAFT FORGING EB.4575.F. Confirming this afternoon's telephone conversation re the 8-cylinder crankshaft forging :- (1) The… | ||
| scan0399 | Prints for two types of crankshafts, B.80 and B.40. | ||
| View original record | To: Rm/HH. from Rm. c. to Ev/JD. Rm. 11/h. 21.2.44 1044 1116 Will you please supply EM/Les. with 3 prints of the latest B.80. crankshaft and 3 prints of the latest B.40. 16 h.p. crankshaft with the 2"… | ||