Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Distributing blueprints for a new Water Pump Casing for the Bentley 50 Cast Iron Engine. | ||
| View original record | To. HFG c. D.I. c. RHC/ORN. c. Rm/Swdl. STD 1044 BY/CS1/EH.31.5.38. [Illegible Signature]/800 Re Bentley 50 Cast Iron Engine. Water Pump - Section 5160. E.CD.442 - Water Pump, Thermostat and Fan.… | ||
| scan0002 | Sending preliminary prints and requesting a new drawing for the Bentley 50-8 Cast Iron Engine. | ||
| View original record | T. Dept. (crossed out) C. RV (crossed out) c. Rm. (crossed out) C. Eng. Dept. (crossed out) 1044 BY/NS.3/G.2.6.38. Filer SWD2 (handwritten) BENTLEY 50 - 8. CAST IRON ENGINE. We send you herewith… | ||
| scan0003 | Design changes for an 8-cylinder Bentley 50 engine. | ||
| View original record | COPY. DA. c. BY/NS. Da/Jnr.1/G.20.5.38. 8 CYLINDER - BENTLEY 50. Herewith drawings PD.162, PD.170 and PD.177. The middle four cylinders and that portion of the crankcase contiguous thereto are common… | ||
| scan0004 | Confirming specifications for the patterns of a B.50 Cast Iron Engine. | ||
| View original record | 1202 104 Mr. Walker, (P.S.) c. By. c. Da/Jnr. Rm4/R.2.6.38. Patterns for B.50 Cast Iron Engine. Confirming our conversation the other day, we are particularly anxious that the patterns for the B.50… | ||
| scan0005 | New blueprints and a List of Parts (L.O.P.) for the water pump of the Bentley 60 Cast Iron Engine. | ||
| View original record | To: [Illegible stamp] c. [Illegible stamp] c. RHG/CAN. c. Rm/Swdl. STD 1044. BY/CS4/EH.15.6.38. Re Bentley 60 Cast Iron Engine. Water Pump - Section 5160. E.CD.442 - Water Pump, Thermostat and Fan.… | ||
| scan0006 | Instructions regarding a modified fan mounting and associated new drawings for the Bentley 60 Cast Iron Engine. | ||
| View original record | 1044. To HPS. c. RHC/SAD c. Rm/Swdl. STD BY/CS2/EH.15.6.38. Re Bentley 60 Cast Iron Engine. Fan - Section 5220. E.CD.678 - Modified Fan Mounting. Please receive herewith blue prints of the following… | ||
| scan0007 | Providing new drawings for a modified fan mounting and thermostat components for the Bentley 60 Cast Iron Engine. | ||
| View original record | 1044. c. Rm/Swdl. STD BY/CS3/EH.15.6.38. Re Bentley 60 Cast Iron Engine. Cylinder - Section 5050. E.CD.678 - Modified Fan Mounting. Further to our memo' BY/CS1/EH.13.6.38., please receive herewith… | ||
| scan0008 | Blueprints for Oil Relief Valves and Fittings for the Bentley 60 Cast Iron Engine. | ||
| View original record | To: [REDACTED] c. [REDACTED] c. Rm/Swdl. Handwritten: 10HH Handwritten: Files BY/CS2/EH.16.6.38. Re Bentley 60 Cast Iron Engine. Oil Relief Valves - Section 5205. E.CD.613 - Oil Fittings and Relief… | ||
| scan0009 | New blueprints for the Bentley 60 Cast Iron Engine camshaft gear and front end. | ||
| View original record | TO. HPS. c. BY. c. RHC/CAN. c. Rm/Swdl. 1044 File BY/CS1/EH.17.6.38. Re Bentley 60 Cast Iron Engine. Camshaft - Section 5090. E.CD.464 - Camshaft Gear and Front End. Please receive herewith blue… | ||
| scan0010 | New drawings for the Bentley 60 Chassis Crankshaft and Camshaft components. | ||
| View original record | File 10H4 c. Rm/Swdl. BY/CS1/EH.18.6.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankshaft - Section 5010. E.CD.464 - Camshaft Gear and Front End. Further to our memo' BY/CS2/EH.3.6.38., please… | ||
| scan0011 | Instructions and blueprints for a Bentley 60 Chassis oil filler, breather pipe, and dipstick. | ||
| View original record | c. Rm/Swdl. Re Bentley 60 Chassis (Cast Iron Engine). Oil Filler - Section 5201. E.CD.512 - Oil Filler, Breather Pipe & Dipstick. Please receive herewith blue prints of the following new drawings and… | ||
| scan0012 | Request to complete the crankcase detail drawing for the Bentley 80 Straight 8 Cast Iron Engine. | ||
| View original record | 1044 BY/CS. c. Rm. BY/NS.8/G.20.6.38. BENTLEY 80. STRAIGHT 8 CAST IRON ENGINE. Will you please complete the detail drawing of the crankcase for the above engine to enable the pattern to be put in… | ||
| scan0013 | List of new drawings and parts for the Crankshaft Damper on a Bentley 60 Chassis with a cast iron engine. | ||
| View original record | IOH [Illegible Stamp] Valve c. Rm/Swdl. BY/CS1/EH.23.6.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankshaft Damper - Section 5020. E.CD.464 - Camshaft Gear and Front End. Please receive herewith… | ||
| scan0014 | Sending Bentley 60 Cast Iron Engine blueprints to the Patent Office for investigation. | ||
| View original record | 1044 NW. (Patent Office). c. Rm. ----------------- BY/NS.10/G.25.6.38. BENTLEY 60. CAST IRON ENGINE. We send you herewith a blueprint of each of the following :- E.CD.403/4, E.CD.525 and E.CD.536.… | ||
| scan0015 | New drawings and a List of Parts for the Bentley 60 Chassis valves and fittings. | ||
| View original record | 1044 To H.P.S. c.c. D.T. c.c. RMG/Oak. c. Rm/Swdl. BY/CS1/EH.25.6.38. Re Bentley 60 Chassis (Cast Iron Engine). Valves & Fittings - Section 5060. E.CD.403 - Cylinder Head. E.CD.404 - Rocker Shaft and… | ||
| scan0016 | Internal instruction memo regarding cylinder modifications for the Bentley 60 Chassis with a cast iron engine. | ||
| View original record | To- H.S.H. c. E.D. c. RHe/CAN c. Rm/Swdl. 104H Peder BY/CS1/EH.28.6.38. Re Bentley 60 Chassis (Cast Iron Engine). Cylinder - Section 5050. E.CD.403 - Overhead Inlet and Side Exhaust Valves. E.CD.404 -… | ||
| scan0017 | Leyland's method of painting the inside of cast iron engine cases to improve bearing cleanliness. | ||
| View original record | 1044 HPS. from Rm. c. Rm/Swdl. Rm1/R.29.6.38. CAST IRON ENGINE. We hear from Leylands that they have much more difficulty in getting clean bearings on a cast iron engine than one with an aluminium… | ||
| scan0018 | Letter to Ferodo Ltd. regarding belt drawings and the potential cost of new moulds for a new engine. | ||
| View original record | 1/35 Experimental Dept. Rm/Std.12/MH. 29th. June 1938. Messrs. Ferodo Ltd., CHAPEL-EN-LE-FRITH. For the attention of Mr.Sutcliffe. Dear Sirs, We send you herewith prints of our belt drawings EB.3927… | ||
| scan0019 | Letter from Ferodo Limited regarding belt drawings and suggesting alternative mould sizes. | ||
| View original record | 1044 All Communications to be addressed to the Company. FERODO LIMITED TELEPHONE: 250 CHAPEL-EN-LE-FRITH (6 LINES) TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH. FERODO REGD. TRADE MARK. BRAKE &… | ||
| scan0020 | Instructions and new drawing details for the Wheelcase section of the Bentley 60 Chassis (Cast Iron Engine). | ||
| View original record | c. Rm/Swdl. BY/CS1/EH.30.6.38. Re Bentley 60 Chassis (Cast Iron Engine). Wheelcase - Section 5180. E.CD.533 - Wheelcase. E.CD.464 - Camshaft Gear and Front End. Further to our memo'… | ||
| scan0021 | Letter to Ferodo Ltd. requesting sample belts for a fan drive based on drawings EB.3927 and EB.3948. | ||
| View original record | (B.60 fan) 1044 Experimental Dept. Rm/Std.3/MH. 2nd. July 1938. Messrs.Ferodo Ltd., CHAPEL-EN-LE-FRITH. For the attention of Mr.Sutcliffe. Dear Sirs, Thank you for your letter of the 30th. ult., and… | ||
| scan0022 | Instructions and drawing references for the Camshaft (Section 5090) on the Bentley 60 Chassis with a Cast Iron Engine. | ||
| View original record | P. Sales 1044 G.RHO/CAR cc.Rm/Swdl. BY/CS1/EH.4.7.38. Re Bentley 60 Chassis (Cast Iron Engine). Camshaft - Section 5090. E.CD.329 - Camshaft and Tappets. E.CD.436 - Top Half Crankcase, Crankshaft etc.… | ||
| scan0023 | Letter from Ferodo Limited regarding a delay in the production of moulds for belts EB.3927 and EB.3948. | ||
| View original record | File B.60 All Communications to be addressed to the Company. FERODO LIMITED TELEPHONE: 250 CHAPEL-EN-LE-FRITH (6 LINES) TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH. FERODO REG'D TRADE MARK. BRAKE &… | ||
| scan0024 | Crankshaft for the Bentley 80 model, referencing drawing PD.209 and suggesting new cost-saving measures for trial. | ||
| View original record | 10HH Piles c. Rm. DA.15/G.7.7.38. BENTLEY 80. CRANKSHAFT. Herewith is PD.209, Crankshaft for the 8 cylinder engine. The journals and pins are the same as Wraith. A new practice as regards plugging… | ||
| scan0025 | List of new drawings and parts for the Bentley 60 Chassis (Cast Iron Engine). | ||
| View original record | 1044 TO D.S. c. RHC/CAR c. Rm/Swdl. File BY/CS3/EH.7.7.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Cylinders - Section 5000, Miscellaneous E.CD.Nos. Please receive herewith blue prints… | ||
| scan0026 | List of engine component parts with instructions. | ||
| View original record | BY/CS3/EH.7.7.38 cont'd. (2) EB.4060 Dip Stick Assembly EB.4061 Distributor Housing EB.4062 Joint - Wheelcase EB.4063 Oil Baffle - Lower Half Crankcase EB.4064 Joint - Upper & Lower Half Crankcase… | ||
| scan0027 | Valve acceleration, velocity, and displacement curves for Bentley 60 cams. | ||
| View original record | 10 HH DY/NS c. Rm. Da.13/G.7.7.38. BENTLEY 60. CAMS. Herewith is PD.223 shewing the valve acceleration Velocity, and Displacement curves for the cam forms already sent you on PD.219 and PD.220. DA. | ||
| scan0028 | High front engine mounting for the Bentley 60 engine, including required modifications and challenges. | ||
| View original record | c. Rm. 1044 DA.8/G.9.7.38. WYA BENTLEY 60. HIGH FRONT ENGINE MOUNTING. Please receive herewith E.CD.785 High Front Engine Mounting - Bentley 60. The engine is shown mounted in a Bentley 111 or Bentley… | ||
| scan0029 | The water connections, pump, thermostat and fan for the Bentley 60 Chassis with a cast iron engine. | ||
| View original record | [Handwritten, top left, crossed out] To. HJS O. BY. c. AH.../Sw... c. Rm/Swdl. [Handwritten, top middle, crossed out] Stel Swdl [Handwritten, top right] 1044. [Typed, top right] BY/CS1/EH.12.7.38.… | ||
| scan0030 | Instructions and drawing list for oil fittings on a Bentley 60 Chassis with a cast iron engine. | ||
| View original record | c. Rm/Swdl. BY/CS2/EH.12.7.38. Re Bentley 60 Chassis. (Cast Iron Engine). Oil Fittings - Section 5200. E.CD.613 - Oil Fittings and Relief Valves. E.CD.643 - Dynamo Mounting and Distributor Oil Feed… | ||
| scan0031 | Stiffening the B.60 camwheel for Bentley 60 timing gears and putting a hold on ordering the bakelite part mould. | ||
| View original record | 1044 HPS. from Rm/FJH. c. By. Rm/FJH7/R.13.7.38. BENTLEY 60 TIMING GEARS. During our recent measurements of static deflection on Wraith timing gears we have found that the camwheel bends appreciably… | ||
| scan0032 | New blueprints for the Bentley 60 Chassis crankcase and bearings. | ||
| View original record | 1044 Sales To: H.P.S. Oswald O/E-RHS/Cam. c. Rm/Swdl. BY/CS2/EH.14.7.38. Re Bentley 60 Chassis (Cast Iron Engine.) Crankcase & Bearings - Section 5000. E.CD.436 - Crankshaft Layout. Please receive… | ||
| scan0033 | Notification regarding new blueprint drawings for the Bentley 60 Chassis (Cast Iron Engine) camshaft forms. | ||
| View original record | 10HH c. Rm/Swdl. BY/CS1/EH.15.7.38. Re Bentley 60 Chassis (Cast Iron Engine). Camshaft - Section 5090. PD.219 - Inlet Cam Form PD.220 - Exhaust Cam Form Please receive herewith blue prints of the… | ||
| scan0034 | Camshaft forms and flywheel timing marks for the Bentley 60 Chassis with a cast iron engine. | ||
| View original record | 104H To HFG. c. BY. c. RNC/CAN. c. Rm/Swdl. Filer BY/CS.4/B.18.7.38. Re Bentley 60 Chassis. (Cast Iron Engine). Camshaft - Section 5090. FD.219 - Inlet Cam Form. FD.220 - Exhaust Cam Form. Further to… | ||
| scan0035 | Requesting a detailed drawing for an experimental Induction Pipe for the Straight 8 engine. | ||
| View original record | 1044 By/ALD. c. By. Rm5/R.19.7.38. Herewith a scheme drawing of the Induction Pipe for the Straight 8 engine. We want to treat this pipe experimentally in the same way as the six-cylinder which you… | ||
| scan0036 | Blueprints for the Bentley 80 Chassis, 8-cylinder cast iron engine crankcase and bearings. | ||
| View original record | 10HH To. HPS (crossed out) c.c. EY. (crossed out) c.c. O.P. Dept. EHC/Wld. c. Rm/Swdl. u/c las (handwritten) BY/CS.4/B.22.7.38. Re: Bentley 80 Chassis. (8 Cylinder Cast Iron Engine). Crankcase &… | ||
| scan0037 | List of points for consideration regarding the design of the B.60 engine cylinder head. | ||
| View original record | COPY To. BY. c. to BY/CS. 1044 G.Mc.1/MJ.22.7.381 B.60 ENGINE CYLINDER HEAD The following points are put forward for your consideration :- REASONS (1) Can the forward dowel and oil feed holes be… | ||
| scan0038 | Proposed modifications to a cylinder head, including hole sizes and dowel positions. | ||
| View original record | RHC/G.Mc. BY.19/G.5.8.38. B.60. CYLINDER HEAD. Referring to G.Mc.1/MJ.22.7.38. the position in regard to the various points raised is as follows :- (1) The forward dowel and oil feed holes can be… | ||
| scan0039 | Sluggish engine pick-up due to petrol pooling at the inlet port and a related casting issue. | ||
| View original record | BY......From RHC/G.Mc. RHC/G.Mc.1/FH.11.8.38. Further to my memo' refernce G.Mc.1/MJ.22.7.38. the following point may be the cause of sluggish pick-up. There is a slight well produced where the Inlet… | ||
| scan0040 | Production facilitation points for the B.60 engine block. | ||
| View original record | To. BY.....From RHC/GMC. RHC/GMC.7/MJ.20.7.38. RE B.60 BLOCK The following points were discussed with C.S. with a view of facilitating production :- (1) The overflow boss from the oil release valve… | ||
| scan0041 | Secret memo regarding detail drawings of the Straight 8 cylinder block and crankcase, and a request to discuss the creation of the patterns. | ||
| View original record | 1044. SECRET. RHC/Vs. from Rm. Rm5/R.22.7.38. Herewith detail drawings of the Straight 8 cylinder block and crankcase. Patterns I should like to discuss with you how the | ||
| scan0042 | Design change for the B.50 engine camshaft bearings from stepped to single diameter. | ||
| View original record | 1044 To By. from Rm. c. HPS. Rm.12/MH.28.7.38. original in 1020 Attached is copy of note from Vandervell with reference to the camshaft bearings on the B.50 cast iron engine. These camshaft bearings… | ||
| scan0043 | Letter from Vandervell Products Ltd. discussing the accepted practice for fitting Camshaft Bearings. | ||
| View original record | COPY. Vandervell Products Ltd., Western Avenue, Park Royal, LONDON, W.3. 27th. July 1938. GAV/BJT. W.A.Robotham, Esq., Messrs. Rolls-Royce Limited, DERBY. Dear Mr. Robotham, Many thanks for your… | ||
| scan0044 | Provision of blueprints for a Bentley B80 Chassis (C.I. Engine) cylinder head. | ||
| View original record | [REDACTED] c. RHC/Wld. c. Rm/Swdl. Liley IOHH BY/CS5/EH.9.8.38. Re Bentley 80 Chassis (C.I. Engine). Cylinder - Section 5050. PD.170 - Cylinder Head. Please receive herewith blue prints of the… | ||
| scan0045 | New blueprints for a Camshaft for the Bentley B80 Chassis. | ||
| View original record | To HPS. c. BY. c. AHC/W.A.H. c. Rm/Swdl. Piler LOH.H. BY/CS2/EH.11.8.38. Re Bentley 80 Chassis (8 Cylinder Cast Iron Engine). Camshaft - Section 5090. PD.162 - Layout of Crankcase etc. Please receive… | ||
| scan0046 | Scheme for incorporating an oil cooler into a B.60 engine unit for test bed use. | ||
| View original record | 1044 To By/Ald. from Rm/Swdl. Rm/Swdl.4/MH.11.8.38. B.60 UNIT FOR TEST BED. Owing to the fact that there are no external oil pipes on the B.60 engine it is rendered more difficult to incorporate an… | ||
| scan0047 | Patent position and potential infringement for a Bentley 60 cylinder head design. | ||
| View original record | 1044. Rm. NW.7/VL.11.8.38. BENTLEY 60. CYLINDER HEAD. With reference to the patent position of the head design shown in drawings E.CD.403/4, E.CD.525 and E.CD.536 recently sent to us for… | ||
| scan0048 | Internal memorandum discussing potential patent infringement and design specifications for combustion chambers. | ||
| View original record | Typed Text: -2- 303592 We do not think that we can be held to infringe this Specification because it is a feature of the invention that the ignition plug is placed in the hottest part of the… | ||
| scan0049 | Requesting blueprints for induction pipes and packing blocks for research on a straight 8 engine. | ||
| View original record | 1044. HPS c. Rm. c. Rm/CTS. BY/Ald.1/G.12.8.38. R. B.80 CHASSIS. INLET PIPES - SECTION 5070. Please receive herewith two blueprints of each of the following, with an extra print of parts marked @ :-… | ||
| scan0050 | 'General' type bye-pass filter for the Bentley 60 engine. | ||
| View original record | BT/NS. o. Rm/ c. Rm/Swdl. Good Files 1044 DA.10/G.15.8.38. BENTLEY 60 - "GENERAL" TYPE BYE-PASS FILTER. Please receive herewith :- E.CD.823 "General" Bye-pass Filter. Bentley 60. This design is… | ||
| scan0051 | Instructions and new drawings for the Bentley BO Chassis (Cast Iron Engine) valves, fittings, and cylinder head. | ||
| View original record | IOHH To. H.S. (crossed out) D.O. (crossed out) c. Rm/Swdl. Files BY/CS4/EH.15.8.38. Re Bentley BO Chassis (Cast Iron Engine). Valves & Fittings - Section 5060. PD.170 - Cylinder Head. Please receive… | ||
| scan0052 | Five key features of the B.60 cylinder head for inclusion in a patent application. | ||
| View original record | 1044 By/NW. from Rm. Rm.8/JH.15.8.38. B.60 Cylinder Head. The following are features of the above which are of importance to the performance of this type of head and be included in the patent… | ||
| scan0053 | 'General' type bye-pass filter for the Bentley 60 engine as an alternative to the 'A.C.' type filter. | ||
| View original record | Handwritten: Rules BY/NS c. Rm. c. Fmr/Swdl SWDL. Please urge your crankcase details jm Typed: 1044 DA.10/C.15.8.38. BENTLEY 60 - "GENERAL" TYPE BYE-PASS FILTER. Please receive herewith :- E.CD.823… | ||
| scan0054 | Blueprints for new drawings related to the Bentley 80 Chassis cast iron engine. | ||
| View original record | 10443 TO: HPSM c.c. DFM c. B.H.G./Nld. c. Rm/Swdl. BY/CS2/EH.15.8.38. Re Bentley 80 Chassis (Cast Iron Engine). Cylinder - Section 5050. PD.170 - Cylinder Head. Further to our memo' BY/CS5/EH.9.8.38.,… | ||
| scan0055 | Blueprints for a Bentley 80 Chassis cast iron engine cylinder head and joint washer. | ||
| View original record | TO [REDACTED] c. [REDACTED] c. Rm/Swdl. 10HH Piles BY/CS3/EH.17.8.38. Re Bentley 80 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000. PD.170 - Cylinder Head. Please receive herewith… | ||
| scan0056 | New drawings and List of Parts for the Wheelcase section of a Bentley 80 Chassis. | ||
| View original record | To. HRS. Copy to SEC/WHS. c. Rm/Swdl. 10HH Files BY/CS4/EH.17.8.38. Re Bentley 80 Chassis (8 Cylinder Cast Iron Engine). Wheelcase - Section 5180. PD.196 - Timing Gears and Front End. PD.207 - Dynamo… | ||
| scan0057 | The need to vent steam pockets in the B-60 cylinder block. | ||
| View original record | S E C R E T. BY.....From RHC/G.Mc. c.c. Rm. c. BY/Sh. 1044 RHC/G.Mc.1/FH.17.8.38. RE. B-60 - CYLINDER BLOCK. There are pockets for steam under the Top Plate which I think should be vented. They are on… | ||
| scan0058 | Request for a cost figure for the patterns of a cast iron cylinder block-cum-crankcase unit. | ||
| View original record | 1046. HPS/CEP. from Rm. Rm11/R.18.8.38. Will you please let us have a figure for the cost of the patterns for the cylinder block - cum - crankcase casting for the cast iron unit. Rm. | ||
| scan0059 | Blueprints for new drawings related to the Bentley 80 Chassis Thermostat and Bye-Pass. | ||
| View original record | 1044. To: [Redacted] C: [Redacted] c. Rm/Swdl. Std BY/CS2/EH.19.8.38. Re Bentley 80 Chassis (Cast Iron Engine). PD.190 - Thermostat and Bye-Pass. Cylinder - Section 5050. Please receive herewith blue… | ||
| scan0060 | Pattern costs for a Bentley 60 Cast Iron Cylinder Block and crankcase. | ||
| View original record | FILE 1046 To Rm. from HPS. HPS.2/EP.19.8.38. In reply to your Rm.11/R.18.8.38 the Pattern cost for the Bentley 60 Cast Iron Cylinder Block and crankcase is as follows :- Outside Contractors Invoice… | ||
| scan0061 | Instructions regarding new drawings and part replacements for the Bentley GO Chassis (Cast Iron Engine). | ||
| View original record | [Illegible stamp] Why File 1044. c. Hm/Swdl. BY/CS2/EH.22.8.38. Re Bentley GO Chassis (Cast Iron Engine). Wheelcase - Section 5180. E.CD.785 - High Front Engine Mounting. Please receive herewith blue… | ||
| scan0062 | Instruction to supply blueprints for a 'Bump Crown' piston to increase the compression ratio for a B.60 Chassis. | ||
| View original record | HPS c. Rm. c. Rm/Swdl. 1044 BY/Ald.8/G.23.8.38. B.60. CHASSIS. PISTON - SECTION 5040. [Initialled] Please receive herewith three blueprints of the following :- Ex.S.928 Piston - Bump Crown. 6 off. The… | ||
| scan0063 | Parts list and instructions for modifying a B.60 engine test bed unit with an oil cooler. | ||
| View original record | 1044 HDS. c. Rm. c. Rm/Swdl. BY/Ald.7/G.23.9.38. B.60. ENGINE - TEST BED UNIT. CRANKCASE & BEARINGS - SECTION 5000. OIL PUMP - SECTION 5170. Please receive herewith two blueprints of each of the… | ||
| scan0064 | Agreements on the B.60 Block design, including oil hole placement and camshaft tolerances. | ||
| View original record | 1044 By. from Rm. Rm6/R.23.8.38. B.60 BLOCK. With reference to RHC/GMC7/MJ.20.7.38., we discussed these points with Maclure in your absence, and the following agreement was reached:- (1) The oil hole… | ||
| scan0065 | Modifications and new drawings for the Bentley 60 Chassis cast iron engine's crankcase. | ||
| View original record | To: HFS [Struck out] c: RHB / HAW [Struck out] c. Rm/Swdl. Sales [Handwritten] 10 HH [Handwritten] BY/CS2/MH.24.8.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000.… | ||
| scan0066 | Letter from Ferodo Limited confirming the dispatch of six sample fan belts from two different moulds. | ||
| View original record | B.60 Jan. 1044 All Communications to be addressed to the Company FERODO LIMITED TELEPHONE: 250 CHAPEL-EN-LE-FRITH (6 LINES) TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH. FERODO REGD. TRADE MARK… | ||
| scan0067 | Application of raised crown pistons to a single cylinder unit. | ||
| View original record | 1044. By/Ald. from Rm/Swdl. Rm/Swdl.6/R.26.8.38. Single Cylinder. Regarding the raised crown pistons you have recently drawn for us for the B.60 engine, we should like to apply it for a start to the… | ||
| scan0068 | Instructions for the front engine mounting for the first B.60 engine in a Bentley 60. | ||
| View original record | WYMAN - EME/MS c. Rm. File DA/2/G.29.8.38. 1044. BENTLEY 60. FRONT ENGINE MOUNTING FOR THE 1ST. B.60 ENGINE. Please receive herewith :- E.CD.850 High Front Engine Mounting - Bentley 60. (1st Engine… | ||
| scan0069 | New drawings and part replacements for the Bentley 60 Chassis Cast Iron Engine. | ||
| View original record | To Mr. H.R.S. By Mr. D.P. c.c. Rm/Swdl. Sales BY/CS1/EH.30.8.38. Re Bentley 60 Chassis (Cast Iron Engine) 2nd. Engine. Crankcase & Bearings - Section 5000. Crankshaft - Section 5010. Oil Fittings -… | ||
| scan0070 | Part changes and references for various engine sections. | ||
| View original record | BY/CS1/EH.30.8.38 cont'd. (2) Section 5000. E.55010 Plug - Oil Gallery 2 off. replaces KB.1064. E.75427 Washer - Plug - Oil Gallery 2 off. " KB.1082. KB.820 Stud - Engine Mounting 3 off. " KB.823. For… | ||
| scan0071 | The official ordering of 'Ferogrip' fan belts for B.60 engines. | ||
| View original record | γ To HPS. from Rm/Std. c. Roy/AW. 1044. Rm/Std.6/MH.30.8.38. B.60 BELTS. Will you please order officially, the following belts which we have requested from Messrs. Ferodo Ltd., and which have been… | ||
| scan0072 | Request to issue a detail for .4 carbon steel inlet valve push rods for the Bentley 60 engine. | ||
| View original record | DY/NS. [crossed out] c. to Rm. [crossed out] c. to Rm/Swdl. [crossed out] 1044 DA.12/G.1.9.38. BENTLEY 60. INLET VALVE PUSH RODS IN .4 CARBON STEEL. As requested by Rm/Swdl.will you please issue a… | ||
| scan0073 | Requesting the fabrication of a drive shaft to test crankshaft oscillation on a B.60 unit. | ||
| View original record | K 1044. To HPS. from Rm/Swdl. Rm/Swdl.2/MH.2.9.38. B.60 UNIT. One of the early jobs that we shall require to do on the above engine is crankshaft oscillation. We shall be pleased, therefore, if you… | ||
| scan0074 | Requesting official orders to be placed for B.60 engine components with Vandervell Products Ltd. | ||
| View original record | 1044 To Roy. c. to G/JWH. c. to HPS/WSC. RM/Swdl.6/JH.3.9.38. B.60 Engine Unit. Will you please pass an official order to Vandervell Products Ltd., for 40 rocker bushes (Babbit lined steel) which they… | ||
| scan0075 | The procurement of rocker bushes from Vandervells for B.60 and B.80 units. | ||
| View original record | 1044 To HPS. c. c. to By/CS. c. c. to Da/JNR. c. c. to Da/MoS. Rm/Swd1.11/JH.3.9.38. ROCKER BUSHES (B.60). Specification Filing As stated in our memo. Rm/Swd1.1/MH.1.9.38. we have been in touch with… | ||
| scan0076 | Instruction regarding new drawings and a List of Parts for the Bentley 60 Chassis connecting rod. | ||
| View original record | To: H.S. [struck through] c. RM/W.S. [struck through] c. Rm/Swdl. [Handwritten] 104H Swdl Sales BY/CS2/EH.3.9.38. Re Bentley 60 Chassis. Connecting Rod - Section 5030. Please receive herewith blue… | ||
| scan0077 | Correct Vee angle for belt pulleys on the Bentley B.60 engine. | ||
| View original record | 1044 To By/N. c. to HPS. Rm/Std.5/JH.5.9.38. Bentley 60. Belt Pulleys. The belt pulleys, fan, water pump, dynamo and c/shaft instructed for the above engine all have a common angle of Vee (28°) and… | ||
| scan0078 | Specification sheet detailing pulley dimensions including V-belt angles and widths. | ||
| View original record | PULLEY DIMENSION - B.60. PULLEY. PIECE No. Correct angle of VEE Correct top width of VEE. ------------------------------------------------------------------------------------------------ (1) C/shaft… | ||
| scan0079 | Instruction regarding new drawings for bushed rockers for the Bentley 60 Chassis. | ||
| View original record | 1044 For: Ptd/Wld. c. Rm/Swdl. BY/CS1/EH.6.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Valves & Fittings - Section 5060. Bushed Rockers. Please receive herewith blue prints of the following new… | ||
| scan0080 | B.60 engine's heavy oil filler and a proposed modification to prevent loosening due to torque reaction. | ||
| View original record | SECRET. 1044 To By. & Rm. from RHC/GMC. c. HPS. Filex RHC/GMC.1/LS.6.9.38. B.60 - ENGINE. The oil filler is rather heavy compared with the size of flange which is bolted to the cylinder block. On… | ||
| scan0081 | New blueprints for the water pump casing of a Bentley B0 Chassis with a cast iron engine. | ||
| View original record | To: Mr. Hives (crossed out) c.c. Dr. (crossed out) c.c. RHC/WAG. (crossed out) c. Rm/Swdl. Std Swdl (handwritten) 1044. (handwritten) BY/CS3/EH.6.9.38. Re Bentley B0 Chassis (Cast Iron Engine). Water… | ||
| scan0082 | New drawing for a Push Rod for the Bentley 60 Chassis, replacing an older part. | ||
| View original record | To: HES c/c D.P. c/c Capt. Wadds c. Rm/Swdl. 1044 Swell Plee BY/CS3/EH.7.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Valves & Fittings - Sec:5060. Please receive herewith blue prints of the… | ||
| scan0083 | New drawings and replacement parts for the Bentley 60 Chassis damper flywheel. | ||
| View original record | c. Rm/Swdl. BY/CS1/EH.10.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Damper Flywheel - Section 5020. Please receive herewith blue prints of the following new drawings, detailed in accordance with… | ||
| scan0084 | Modification to the crankcase rear end oil retaining groove for the Bentley 60 and 80 models. | ||
| View original record | BP/MS. c. Rm. c. HPS. Re-Lee DA.4/G.12.9.38. 1044 BENTLEY 60. CRANKCASE REAR END OIL RETAINING GROOVE. Please receive herewith :- E.CD.887 Modified Rear Bearing Oil Collecting Groove Bentley 60 and… | ||
| scan0085 | Request for a cost analysis of the first Bentley B.60 engine, including expenses for patterns and overtime. | ||
| View original record | 1044 HPS. from Rm. Rm7/R.14.9.38. BENTLEY 60 UNIT. Will you please let us have an analysis of the cost of building the first B.60 engine to include the money expended on patterns. We should like an… | ||
| scan0086 | Notification of new drawings and part replacements for the Bentley 60 Chassis (Cast Iron Engine) crankcase and bearings. | ||
| View original record | To H.P.S. C. B.H. c. RHO/Wld. c. Rm/Std. DeLee SWDL 10AH BY/CS5/EH.15.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000. Please receive herewith blue prints of the… | ||
| scan0087 | New blueprints and modifications for the Bentley 60 Chassis cast iron engine's crankcase and bearings. | ||
| View original record | [STAMP: CENTRAL DRAWING OFFICE] [Handwritten: Vale] c. Rm/Swdl. BY/CS4/EH.15.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000. Please receive herewith new blue… | ||
| scan0088 | Calculations for the B.60 engine damper inertia and stiffness. | ||
| View original record | To Rm/Swdl. COPY FOR FILES. 1044 Rm/Gry.8/MH.16.9.38. B.60 ENGINE DAMPER. Inertia. A = π/32 ( 7.8^4 - 5.25^4 ) x .878 x .283 = 72.3 About one half of B is effective due to holes for driving springs.… | ||
| scan0089 | New drawings and blueprints for the Water Pump and Fan on the Bentley 80 Chassis. | ||
| View original record | 1044 c. Rm/Swdl. BY/CS2/EH.17.9.38. Re Bentley 80 Chassis (Cast Iron Engine). Water Pump and Fan - Section 5160. PD.203 - Water Pump and Fan. PD.260 - Modified Fan. Please receive herewith blue prints… | ||
| scan0090 | Issue of blueprints for a new water pump facing washer for the Bentley 60 Chassis. | ||
| View original record | [text crossed out] [text crossed out] c. Rm/Swdl. Pale 1044 BY/CS1/EH.19.9.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000. E.CD.442 - Water Pump. Please receive… | ||
| scan0091 | Development of an induction system for the B.60 engine, requesting adaptor flanges for a standard Wraith system. | ||
| View original record | 1044 To HPS. from Rm/CTS. Rm/CTS.6/MR.19.9.38. B.60 ENGINE. With reference to the induction system for the above engine. The first unit which is now on the test bed will be fitted with a special brass… | ||
| scan0092 | Parts list for the Bentley 60 Chassis, covering Inlet Pipes, Carburetter, and Controls. | ||
| View original record | 1044 BY/Ald.6/G.21.9.38. HPS c. Rm. c. Rm/CTS BENTLEY 60.CHASSIS. INLET PIPES - SECTION 5070. CARBURETTER - SECTION 5080. CONTROLS - SECTION 5240. Please receive herewith two blueprints of each of the… | ||
| scan0093 | List of required parts for assembly sections 5070 and 5080. | ||
| View original record | - 2 - BY/Ald.6/G.21.9.38. The following existing parts will also be required:- SECTION 5070. KB.750 Stud for Induction Port. 8 off. K.4310 Nut " " " 8 off. K.9008 Washer " " " 8 off. E.70306 Spherical… | ||
| scan0094 | Parts list and production request for a special carburetter body and built-up induction pipe for testing. | ||
| View original record | - 3 - BY/Ald.6/G.21.9.38. SECTION 5240. K.105 Bolt for Control Lever. 2 off. K.4307 Nut " " " 2 off. K.9006 Washer " " " 2 off. E.50452 Pin for Control Lever. 2 off. -1247 file The above is based on… | ||
| scan0095 | Listing the required sections for the Bentley 80 Chassis engine. | ||
| View original record | To HPS. c. Hm/Swdl. 104H Robey BY/CS1/EH.23.9.38. Re Bentley 80 Chassis. The following sections will be required for the above engine. Section 5010. LOP.EB.4121. Section 5030. Similar to LOP. EB.4192,… | ||
| scan0096 | On the method for treating B.60 cast iron crankcases to prevent iron particles entering the bearings. | ||
| View original record | 1044 To HPS. Rm/Cwdl.15/JH.23.9.38. B.60 Crankcase. We have been informed that the most satisfactory method to avoid trouble due to iron particles getting into the bearings etc. for which cast iron is… | ||
| scan0097 | Cleaning cylinder heads before applying anodic oxidation anti-corrosion treatment. | ||
| View original record | 1044 To HPS. Rm/Std.5/JH.23.9.38. Attached is a memo. from H1/EA. re B.60 cylinder heads which have been sent to him for anodic oxidation anti corrosion treatment. This treatment is considered to be… | ||
| scan0098 | Instruction to use an S/ZN shaft on the B.80 engine due to a distributor drive gear failure on the B.60 engine. | ||
| View original record | J-800 1044. To HPS. from Rm/Swdl. c. By/CS. c. Da/Jnr. c. Da/McS. Rm/Swdl.8/MH.30.9.38. B.80 ENGINE. In view of the failure of the distributor drive gear on the Monichrome camshaft of the B.60 engine,… | ||
| scan0099 | The modification of an 8-cylinder engine camshaft based on findings from a 6-cylinder Bentley 50 engine. | ||
| View original record | 1044. HPS. from Rm. Rm5/R.30.9.38. 8-cyl. engine camshaft. Will you please note that the run we have had on the 6-cyl. Bentley 50 engine has indicated that the cam-forms require modifying, and the… | ||
| scan0100 | Engine mounting for a straight engine in a Silver Wraith type frame. | ||
| View original record | 1044 BY/NS c. Rm. DA.2/G.30.9.38. B.80. ENGINE MOUNTING. [Handwritten signature: Noted] Herewith is PD.268 which shews the Front Engine Mounting for the straight engine in a Silver Wraith type frame.… | ||
| scan0101 | Preliminary unit test report of the B.60 engine, detailing a failure and comparing its performance against a Wraith engine. | ||
| View original record | To By. from Rm/Swdl. c. Da. c. Da/Jnr. c. Ba/MOS. c. HPS. Rm/Swdl.9/WH.30.9.38. 1044. UNIT TEST REPORT OF B.60 ENGINE. We give herewith a preliminary report of the B.60 engine which was terminated… | ||
| scan0102 | Engine performance, focusing on camshafts, valve lift, and detonation issues in various engines. | ||
| View original record | -2- Rm/Swdl.9/WR.30.9.38. Ds/Jnr. is going to give alternative camshafts for further trial, also if possible to increase the inlet valve lift. The induction pipe depression of 2.8 ins. at 3500 R.P.M.… | ||
| scan0103 | Engine idling performance and detailed observations on valve gear components, wear, and potential improvements. | ||
| View original record | -3- Idling. The idling though not specifically tried for as yet, appears good and when the unit is reassembled we are by means of the tappet clearance going to determine what the maximum overlap that… | ||
| scan0104 | Engine component performance, detailing issues with valve bounce, gear failure, and lubrication. | ||
| View original record | -4- Rm/Swd1.9/MH.30.9.38. rocker pad at right angles to the valve at half lift as against the present arrangement of being square in the valve closed position. Valve bounce with wraith springs… | ||
| scan0105 | Graph comparing the power output of two different B.60 engine configurations with an open exhaust. | ||
| View original record | B.60 POWER COMPARISON (OPEN EXHAUST) S.56 ① B.60. 6.4:1 COMP. RATIO MOCK-UP WRAITH INDN NO DYNAMO OR FAN. VALVE TIMING WITH .030 CLEARANCE. IO. 7° PTDC EO. 42° BBDC IC. 30° PBDC EC. 33° BTDC ② WRAITH… | ||
| scan0106 | Experimental B.60 engine with a 3¾ inch bore. | ||
| View original record | c. Rm. Liles B.60 ENGINE - 3¾ BORE. DA.3/G.3.10.38. 1044 Experimental wish to try an experimental engine of the B.60 type with a 3¾ bore. Herewith is FD.257 which shews the increased bore obtained by… | ||
| scan0107 | List of dynamo weights for various car models including B.60, Wraith, S.S., Bentley, and Oldsmobile. | ||
| View original record | #HS 10 HH also 1115 v Elect. Rm. from Rm/Cr. c. Da/Jnr. Rm/Cr7/R.3.10.38. DYNAMO WEIGHTS. B.60. Dynamo complete with pulley - 26 lbs. 7 1/2 ozs. (Jnr's figures) WRAITH. " with ventilator - 23 " 14 "… | ||
| scan0108 | Urgent request to produce two trial distributor drive gears for a B.60 engine, following a gear failure. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.2/MH.4.10.38. B.60 ENGINE. In connection with the failure of the gear on the Monichrome camshaft will you please produce for trial 2 distributor drive gears similar… | ||
| scan0109 | Carburetter revision for the Bentley 60 Chassis, including changes to stud diameters and a list of required parts. | ||
| View original record | HPS. (crossed out) c. Rm. (crossed out) C. Rm/CTS. (crossed out) 1044 BY/Ald.15/G.5.10.38. BENTLEY 60. CHASSIS. CARBURETTER - SECTION 5080. Further to memo BY/Ald.6/G.21.9.38. please receive herewith… | ||
| scan0110 | List of new drawings for the Bentley 80 Chassis Crankcase and Bearings. | ||
| View original record | To HPS. c.c. B.P. c.c. RMC/Wld. c. Rm/Swdl. File 104H BY/CS1/EH.6.10.38. Re Bentley 80 Chassis (Cast Iron Engine). Crankcase & Bearings - Sec:5000. Please receive herewith blue prints of the following… | ||
| scan0111 | Stress analysis and comparison of rear axle options for the proposed B.80 Straight 8 engine. | ||
| View original record | GRY what does "Century" Buick use. To By... from Da/HB. c. Da. Rm. De/Hdy. Rm Da/HB.21/N.6.10.38. 1044 Rear Axle for proposed B.80 Straight 8. ? file 202. Further to Da/HB.1/N.4.10.38, Rm/Gry. has… | ||
| scan0112 | List of new drawings and instructions for the Crankshaft Damper on a Bentley 80 Chassis with a cast iron engine. | ||
| View original record | 1044 c. Rm/Swdl. Pala [Handwritten] BY/CS3/EH.8.10.38. Re Bentley 80 Chassis (Cast Iron Engine). Crankshaft Damper - Section 5020. PD.196 - Front End of Engine and Mounting. Please receive herewith… | ||
| scan0113 | Blueprints for new exhaust manifolds for the Bentley 80 Chassis. | ||
| View original record | To HPS. c. BY. c. RHO/Wld. c. Rm/Swdl. IOHH Pile BY/CS1/EH.10.10.38. Re Bentley 80 Chassis (Eight Cylinder Cast Iron Engine). Exhaust Fittings - Section 5230. Exhaust Manifolds. Please receive… | ||
| scan0114 | Confirming the fitting of Vandervell main bearings to the B.80 engine due to issues with the B.60 units. | ||
| View original record | 1044 also 1020. To HPS. from Rm/Swdl. Rm/Swdl.7/MH.11.10.38. VANDERVELL BEARINGS - B.60 & B.80. This memo to confirm that the first B.80 engine will be fitted with Vandervell main bearings in view of… | ||
| scan0115 | New drawings for a camshaft and inlet cam for the Bentley 60 Chassis (Cast Iron Engine). | ||
| View original record | 1044 To: HBS. [Struck through] c. Dr. [Struck through] c. RHC/Wida c. Rm/Swdl. File [Handwritten] BY/CS4/EH.12.10.38. Re Bentley 60 Chassis (Cast Iron Engine). Camshaft - Section 5090. PD.281 - Valve… | ||
| scan0116 | New drawings and section references for the Bentley 80 Chassis with a cast iron engine. | ||
| View original record | 1044 [illegible crossed out text] c. Hm/Swdl. File BY/CS7/EH.13.10.38. Re Bentley 80 Chassis (Cast Iron Engine). Connecting Rod - Section 5030. Piston - " 5040. Valves & Fittings- " 5060. Camshaft - "… | ||
| scan0117 | List of parts and alterations for the Bentley 60 and 80 engines, completing instructions for test bed purposes. | ||
| View original record | BY/GS7/EH.13.10.38 cont'd. (2) The following L.O.Ps. are common to Bentley 60 and Bentley 80, and should be instructed for Bentley 80 engine. Section 5170. EB.3908 Oil Pump L.O.P. Section 5201.… | ||
| scan0118 | Test report on Bentley 60 valve guide inserts, detailing interference fit tests and their results. | ||
| View original record | 10H4 To Ey. from HPS/W.Bell. c. to Rm. c. to Dr. HPS/WB.4/CB.13.10.38. BENTLEY 60 VALVE GUIDE INSERT TESTS. EB.4034. These parallel type valve guides were pressed into a scrap section of the cylinder… | ||
| scan0119 | Chart of diametral interferences for valve guides and valve inserts on a Bentley 60 No.1 Unit. | ||
| View original record | 13-10-38 CHART OF DIAMETRAL INTERFERENCES OF VALVE GUIDES AND VALVE INSERTS ON BENTLEY 60 - N°1 UNIT VALVE GUIDES - EB 4034 N°1 CYL N°2 CYL N°3 CYL N°4 CYL N°5 CYL N°6 CYL INTERFERENCE .0010" .0010"… | ||
| scan0120 | Piston for the B.60 C.I. engine with a 3.75 inch bore. | ||
| View original record | DW/NO. c. Rm. File DA.2/G.14.10.38. 1044 Sidall B.60 ENGINE - 3.75 BORE. Herewith is FD.282 shewing the piston for the 3.75" bore C.I. engine. It uses the existing connecting rod. It is intended to… | ||
| scan0121 | Comparison of engine component weights for the B.60 engine and the Wraith engine. | ||
| View original record | COPY FOR FILES. To Rm. from Rm/Cr. 10HH also 658 Typed 14.10.38. B.60 ENGINE WEIGHTS. Engine weights as illustrated in attached photographs .................... 453 lbs. This does not include:- Fan… | ||
| scan0122 | Photograph of a B.60 engine unit, viewed from the near side. | ||
| View original record | B. 60 ENGINE UNIT NEAR SIDE NEG. Nº 6089 D SEPT. 1938 | ||
| scan0123 | Photograph of a B 60 engine unit, front view. | ||
| View original record | B 60 ENGINE UNIT FRONT* NEG. NO 6087D SEPT 1938 | ||
| scan0124 | Photograph of a B.60 engine unit, off side view. | ||
| View original record | B.60 ENGINE UNIT OFF SIDE NEG. Nº 6088 D SEPT 1938 | ||
| scan0125 | New drawing for a Valve Lift Curve and Flywheel Timing on a Bentley 60 Chassis. | ||
| View original record | TO H.P.S. [Illegible Stamp] c. Rm/Swdl. 1044 [Handwritten Signature: Swdl Biles] BY/CS1/EH.17.10.38. Re Bentley 60 Chassis (Cast Iron Engine). Camshaft - Section 5090. PD.281 - Valve Lift Curve,… | ||
| scan0126 | Blue prints for a new drawing of an exhaust cam form for a Bentley 60 Chassis. | ||
| View original record | To H.S. c.c. B.P. c. RMC/Wld. c. Rm/Swdl. 10HH Filed BY/CS3/EH.18.10.38. Re Bentley 60 Chassis (Cast Iron Engine). Camshaft - Section 5090. PD.288 - Valve Lift Curve for 244º duration Exhaust Cam.… | ||
| scan0127 | Blueprints for a new drawing of the Bentley B0 Chassis Crankcase and Cylinders. | ||
| View original record | TO HPS. G. Br. C. RHC/Vid. c. Rm/Swdl. 104H [Signature] BY/CS2/WH.20.10.38. Re Bentley B0 Chassis. Crankcase & Bearings - Section 5000. Please receive herewith blue prints of the following new… | ||
| scan0128 | The arrangement of the B.60 engine on the no.5 test bed, providing details for mounting the engine and gearbox. | ||
| View original record | REF. from EJJ/DH. to Millwrights Dept. to Rm/Swdl. ------------------------ 1044 EJJ/DH1/JC22. 10. 38. ------------------------ Re - ARRANGEMENT OF B.60 ENGINE NO.5 TEST BED.… | ||
| scan0129 | Camshaft, valve lift curve, and new drawing for the inlet cam form for the Bentley 60 Chassis. | ||
| View original record | To Eng: C. BY. C. HMC/Wid. c. Rm/Swdl. 1044 Sales BY/CS2/EH.25.10.38. Re Bentley 60 Chassis. - Camshaft - Section 5090. PD.289 - Valve Lift Curve for .450 Valve Lift. Please receive herewith blue… | ||
| scan0130 | Manufacturing difficulties with the Bentley 80 Crankshaft, EB.4104, regarding oil caps and taper plugs. | ||
| View original record | 1044 To Da. from HPS. c. BY. c. Da/Hdy. C. Rn. C. RHC. HPS.7/VS.25.10.38. BENTLEY 80 CRANKSHAFT EB.4104. Confirming our verbal report to Da/Jnr., it has been found impossible to make a satisfactory… | ||
| scan0131 | The testing of expanding disc oil caps for crankshafts, detailing issues with leakage, vibration and extraction. | ||
| View original record | 25.10.38. EXPANDING DISC OIL CAPS. FD.209 Crankshaft (EE.4104). Using dummy test pieces representing the journal and crankpin sections of this type of crankshaft, discs made in S/DS. having… | ||
| scan0132 | The design of an eight-point ignition distributor, D.CD.973, for the B.80 engine. | ||
| View original record | 1044 BY/NS. c. Rm. DA.10/G.26.10.38. B.80. IGNITION DISTRIBUTOR. D.CD.973 and D.CD.971. Herewith Distributor scheme D.CD.973, together with Cam Form D.CD.971. This is an eight point distributor… | ||
| scan0133 | Notification regarding new drawings for valve springs and washers for the Bentley 60 Chassis to accommodate increased valve lift. | ||
| View original record | To Mr. Bower, C.E. Dept. O.R. Rm/Swdl. c. Rm/Swdl. Pelee 1044 BY/CS1/EH.26.10.38. Re Bentley 60 Chassis. Valves & Fittings - Section 5060. Valve Spring for increased Valve Lift. Please receive… | ||
| scan0134 | Instructions and blueprint details for Bentley 80 Chassis crankshaft revisions. | ||
| View original record | [crossed out text] c. Rm/Swdl. 1044 BY/CS1/EH. 27.10.38. Re Bentley 80 Chassis. Crankshaft - Section 5010. Revision to standard type of Oil Caps. (DA.9/G.22.10.38). E.CD.929 - Modified Plug for… | ||
| scan0135 | The difficulty in making pressed-in oil caps for the B.80 crankshaft, suggesting a review of American practices. | ||
| View original record | 1044 HPS. from Rm. c. RHC. c. Ey. c. Da. c. Hdy. Rm11/R.26.10.38. B.80 CRANKSHAFT - EB.4104. With reference to HPS7/VS.25.10.38., we are disappointed that we are unable to make pressed-in oil caps… | ||
| scan0136 | The Bentley 60 Chassis camshaft, valve lift curve, and the issue of new drawings. | ||
| View original record | To: Hives c.c. BY. c.c. Rm/Swdl. 1044 Filer BY/CS2/EH.27.10.38. Re Bentley 60 Chassis. Camshaft - Section 5090. PD.288 - Valve Lift Curve for 244° Duration Exhaust Cam. Further to our memo'… | ||
| scan0137 | Confirming the completion of issuing details for the cast iron engine mounting. | ||
| View original record | COPY. 1044 By/NS.1/G.27.10.38. (CAST IRON) ENGINE MOUNTING. In reply to memo Rm.6/R.26.10.38., will you please note that the issue of details to E.C.D.785 is completed. Details were issued under… | ||
| scan0138 | The alteration of the taper screw plug for crankshaft oil holes on Bentley 60 and 80 models. | ||
| View original record | BY/NS. c. Rm. c. HPS. Rules 1044 DA.9/G.28.10.38. BENTLEY 60. CRANKSHAFT. SWPL Please receive herewith :- E.CD.929 Plug for Crankshaft Oil Holes - Bentley 60. Owing to the difficulty of obtaining… | ||
| scan0139 | Modifying inlet valve guides for engines with increased valve lift. | ||
| View original record | BR/NS C. Rm. 1044 File DA.5/G.29.10.38. SWDC - B.60. INLET VALVE GUIDES. On the engines which have the increased inlet valve lift i.e. .437 and .450, it will be necessary to reduce the height of the… | ||
| scan0140 | Instructions regarding an experiment on a Bentley 60 Chassis involving a new sodium-cooled exhaust valve. | ||
| View original record | 1044 o. Rm/Swdl. BY/CS1/EH.31.10.38. Re Bentley 60 Chassis. Crankcase & Bearings - Section 5000. Valves & Fittings - Section 5060. PD.290 - Sodium Cooled Exhaust Valve. Please receive herewith blue… | ||
| scan0141 | Excessive wear on Bentley 60 oil pump and distributor drive gears, with proposed modifications. | ||
| View original record | Typed Content: TO RM, BY/NS c. Rm. c. Rm/Swdl. BENTLEY 60 OIL PUMP AND DISTRIBUTOR DRIVE GEARS. With regard to the excessive wear of the gears of the oil pump and distributor drive on the cast iron… | ||
| scan0142 | Proposal for a sodium-cooled exhaust valve design to overcome engine overheating and detonation at 3000 rpm. | ||
| View original record | DA/MS. (Struck through) 1044 c. Rm. DA.15/G.31.10.38. Piler SWDL B.60. ENGINE. Please receive herewith PD.290 shewing design for a sodium cooled exhaust valve. It is proposed to try a set with the… | ||
| scan0143 | Modification to the Bentley B.60 oil pump to address excessive wear on spiral gears. | ||
| View original record | EY/MS c. Rm. c. Rm/Swdl. 1044 SWDL Liles DA.1/G.2.11.38. BENTLEY 60. OIL PUMP. Please receive herewith :- E.CD.989 Recess for Tooth Pressure Release. B.60 Oil Pump. A contributory cause to the trouble… | ||
| scan0144 | The modification of the induction pipe for a straight 8 engine to fit a new Stromberg carburetter. | ||
| View original record | 1044. To By/Ald. from Rm/CTS. Rm/CTS.9/MH.2.11.38. B.80. With reference to your drawing of the induction pipe for the straight 8 engine. We now have available, a later version of the Stromberg… | ||
| scan0145 | Notification regarding new drawings and blueprints for the Bentley 60 Chassis piston section. | ||
| View original record | 1044 BY/CS1/EH.2.11.38. c. Rm/Swdl. File Re Bentley 60 Chassis (3¼" bore). Piston - Section 5040. PD.282 - 3.75 dia. Split Skirt Piston. Please receive herewith blue prints of the following new… | ||
| scan0146 | New drawings for the Bentley 80 Chassis crankcase and front engine mounting. | ||
| View original record | 104H Hales c. Rm/Swdl. BY/CS2/EH.3.11.38. Re Bentley 80 Chassis. Crankcase & Bearings - Section 5000. PD.268 - Front Engine Mounting. Please receive herewith blue prints of the following new drawings,… | ||
| scan0147 | Dynamometer testing of an axle and gears for an 8-cylinder car. | ||
| View original record | Spare 1044. Rm/Gry.1/MH.4.11.38. To By. from Rm/Gry. c. Da. c. Hdy. c. Da/Ev. AXLE FOR 8-CYLINDER CAR. We have fitted a B.II axle to the P.III dynamometer chassis with a view to determining the… | ||
| scan0148 | New drawings for the Bentley 60 Chassis camshaft and flywheel timing marks. | ||
| View original record | 1044 c. Rm/Swdl. Files BY/CS1/EH.7.11.38. Re Bentley 60 Chassis - Camshaft - Section 5090. PD.289 - Valve Lift Curve for .450 Lift. Further to our memo' BY/CS2/EH.25.10.38., please receive herewith… | ||
| scan0149 | Modification details for the Oil Pump Drive Gear on the Camshaft of a Bentley 60 Chassis. | ||
| View original record | c. Rm/Swdl. Sales 10HH BY/CS5/EH.7.11.38. Re Bentley 60 Chassis. Camshaft - Section 5090. Oil Pump - " 5170. Modification to Oil Pump Drive Gear on Camshaft. DA.17/G.31.10.38. We send you herewith… | ||
| scan0150 | Instruction memo regarding new drawings for a modified inlet valve spring for the Bentley 60 Chassis. | ||
| View original record | c. Rm/Swdl. 10HH SoDes BY/CS1/EH.9.11.38. Re Bentley 60 Chassis. Valves & Fittings - Section 5060. PD.300 - Modified Inlet Valve Spring. Please receive herewith blue prints of the following new… | ||
| scan0151 | The modifications required to fit a B.60 engine into a Wraith III chassis, focusing on controls, pipes and the carburetter. | ||
| View original record | DV/RS. c. Rm. 1044 DA.10/G.9.11.38. File W HAIN 25G Show B.60 ENGINE FITTED IN WRAITH 111 CHASSIS - ENGINE CONTROLS, INLET PIPES AND CARBURETTER. Herewith please receive :- E.CD.1008 Engine Controls -… | ||
| scan0152 | One-off modification details for a fan, air intake silencer, and exhaust pipe for a Wraith III system. | ||
| View original record | - 2 - DA.10/G.9.11.38. modified fan, air intake silencer fixing, and an exhaust downtake pipe to couple up with the Wraith 111 exhaust system. This job is only intended for a one off job, and… | ||
| scan0153 | Installation process for six and eight-cylinder cast iron engines in a prototype frame. | ||
| View original record | 1044 & 1260 Bg. from Rm. c. Da. c. Da/Hdy. c. Da/Ev. c. By/McS. c. By/Ald. Rm1/R.9.11.38. CAST IRON ENGINES - INSTALLATION. We are anxious that the design work for installing a cast iron engine in the… | ||
| scan0154 | Experiments on vacuum-assisted systems and a proposed design to simplify the servo for hydraulic front brakes. | ||
| View original record | -2- Rml/R.9.11.38. We are urging our experiments on the vacuum-assisted change to give Mdy the necessary information to complete his schemes. Apart from these installation drawings, there is one other… | ||
| scan0155 | Modification to exhaust ports to improve valve cooling for B.60, B.80, and large bore engines. | ||
| View original record | DE/MS c. Rm. 10HH DA.2/G.10.11.38. Files B.60, B.80 and LARGE BORE. SWDL Arrange Please receive herewith PD.266 shewing modified exhaust ports to improve the cooling of the valves by making the… | ||
| scan0156 | Modifications to the flywheel and clutch casing for the B.60 Cast Iron Engine to reduce weight. | ||
| View original record | 1044 also 1110 To By. c.c. to Da. Rm/NRC.8/JH.10.11.38. B.60 Cast Iron Engine. Flywheel and Clutch Casing. We have been endeavouring to reduce the weight of the flywheel without appreciable loss of… | ||
| scan0157 | Instructions for new engine controls on the Bentley 60 Chassis, detailing modifications for a B.60 engine. | ||
| View original record | 1044 c. Rm/Swdl. BY/CS2/EH.11.11.38. Re Bentley 60 Chassis. Carburetter - Section 5080. Controls - Section 5240. E.CD.1008 - Engine Controls - B.60 Engine fitted in Wraith III Chassis. Please receive… | ||
| scan0158 | List of modifications and examinations for a returned B.60 No.1 engine unit. | ||
| View original record | 1044. To HPS. from Rm/Swdl. Rm/Swdl.8/MH.11.11.38. B.60 No.1 UNIT. We have returned the above unit for the following:- (1) Dismantle and examine engine generally. (2) Fit raised crown Aerolite pistons… | ||
| scan0159 | Modifications for fitting a Bentley 60 engine into a Wraith III chassis, focusing on the front engine mounting, fan, and bottom water pipe. | ||
| View original record | c. Rm. 1044 BENTLEY 60 ENGINE IN WRAITH 111. CHASSIS - FRONT ENGINE MOUNTING, FAN AND BOTTOM WATER PIPE. Please receive herewith :- E.CD.1015 Front Engine Mounting, Fan and Bottom Water Pipe - Bentley… | ||
| scan0160 | The top water connection for fitting a B.60 engine into a Wraith III chassis. | ||
| View original record | DY/HS. (struck through) c. Rm. 10W (handwritten) WRAITH III File (handwritten) DA.3/G.11.11.38 (handwritten) Gadsby (handwritten signature) B.60 ENGINE IN WRAITH 111 CHASSIS - TOP WATER CONNECTION.… | ||
| scan0161 | Instructions for the exhaust downtake pipe on a B.60 engine in a Wraith III chassis. | ||
| View original record | c. Rm. 1044 DA.5/G.12.11.38. B.60 ENGINE IN WRAITH 111 CHASSIS - EXHAUST DOWNTAKE PIPE. Please receive herewith E.CD.1021 Exhaust Downtake Pipe etc. B.60 Engine in Wraith 111 chassis. (2 sheets). The… | ||
| scan0162 | List of new blueprints for the Bentley 60 Chassis Cast Iron Engine, focusing on the crankcase and bearings section. | ||
| View original record | c. Rm/Swdl. File 1044 BY/CS1/EH.14.11.38. Re Bentley 60 Chassis (Cast Iron Engine). Crankcase & Bearings - Section 5000. 3.750 Bore. PD.257 - 3 1/2 dia. Bore Engine. Please receive herewith blue… | ||
| scan0163 | Request to produce and fit short brass bends to the Bentley 60 experimental induction system. | ||
| View original record | 1044 To HPS. Rm/CTS.9/JH.14.11.38. Bentley 60 Induction System. Will you please produce and fit short brass bends to the centre portion of the existing experimental induction system, as shown on… | ||
| scan0164 | Requesting the production of induction system parts for the B.60 engine. | ||
| View original record | 1044 HPS. from Rm/CTS. Rm/CTS8/R.15.11.38. INDUCTION SYSTEMS. There is no designed scheme of induction system available for the B.60 engine. Until we have decided what is required, will you please… | ||
| scan0165 | Requesting blueprints and parts for a Bentley 80 crankcase, specifically for a Delco-Remy distributor assembly. | ||
| View original record | HPS Rm. Rm/RC. 1044 BY/Ald.12/G.15.11.38. BENTLEY 80. CRANKCASE & BEARINGS. SECTION 5000. Please receive herewith two blueprints of each of the following :- S.CD.1001 Delco-Remy Distributor. SECTION… | ||
| scan0166 | Requesting blueprints for new inlet pipe components for the Bentley 80 Chassis. | ||
| View original record | HPS. c. Rm. c. Rm/CTS. 1044 BY/Ald.13/G.15.11.38. BENTLEY 80 CHASSIS. INLET PIPES - SECTION 5070. Please receive herewith two blueprints of each of the following, with an extra print of parts marked @… | ||
| scan0167 | Blueprints for a PD.305 Exhaust Valve Spring for the B.60 Large Bore engine. | ||
| View original record | c. Rm. ---------- Files B.60. LARGE BORE. Please receive herewith blueprints of PD.305 Exhaust Valve Spring for the above. This design is necessitated by the limitation on spring diameter imposed by… | ||
| scan0168 | The installation of a Bentley 60 Engine in a Wraith III Chassis, detailing new drawings for water connections and the fan. | ||
| View original record | 1044 P de Cee c. Rm/Swdl. BY/CSL/EH.17.11.38. Re Bentley 60 Engine in Wraith III Chassis. Water Connections - Section S190. Fan - Section S220. E.CD.1015 - Engine Mounting, Fan and Bottom Water Pipe.… | ||
| scan0169 | Casting programme and progress report for the B.60 Crankcase. | ||
| View original record | Rm. 1044 RHC/Vs.7/JT.17.11.38. Iron Foundry. Herewith copy of casting programme for B.60 Crankcase :- B.60. Pattern received Aug. 9th. (4.p.m.) (Proof cast Aug.11th. Delivered to works Aug.12th. (2… | ||
| scan0170 | Design specifications for B.60 engine units 3, 4, 5, and 6. | ||
| View original record | 1044 To HPS. from Rm/Swdl. c. Da/Jnr. c. Da/Mos. c. By/Cs. Rm/Swdl.2/MH.17.11.38. B.60 UNITS. From the tests on the 1st. engine there are certain features which have been found desirable and should be… | ||
| scan0171 | List of modifications for various engine components including pistons, cylinder heads, and valves. | ||
| View original record | -2- Pistons. No.s 3, 4 and 5 Aerolite std. pistons. No. 6 units to have FD.304 pistons. Crankshaft Damper. To incorporate reduced section leaf springs. Cylinder Heads. Nos. 3 and 4 units. To… | ||
| scan0172 | List of modifications and specifications for various engine components. | ||
| View original record | -3- Rm/Swdl.2/MH.17.11.38. Inlet Valve Springs & Washers. Nos. 3, 4, 5 and 6 units to incorporate FD.300. Exhaust Valves. All units to have sodium filled valves FD.290. Push Rods. Nos. 4, 5 and 6 to… | ||
| scan0173 | Adaptor flanges for Wraith and Bentley induction systems. | ||
| View original record | -4- Rm/Swdl.2/MR.17.11.38. Induction Systems. Sufficient adaptor flanges (Mx. ) to be made which take either Wraith and Bentley systems. As RM/CPS. has ordered 2 Wraith and 2 Bentley systems these can… | ||
| scan0174 | Discussion memo on production delays and costs for 6-cylinder and 8-cylinder engine patterns. | ||
| View original record | 1044 also 1260 Mr. Walker (P.S.) c. HPS. c. RHC/Vs. Rml/R.17.11.38. PATTERNS - CAR ENGINES. A discussion took place between HPS., Mr. Walker, Mr. Vickers and Rm. to clear up the troubles which have… | ||
| scan0175 | Foundry problems with an 8-cylinder pattern and outlining a proposed car engine program. | ||
| View original record | -2- Rml/R.17.11.38. The point was then raised by Mr. Walker that the trouble in the Foundry with the 8-cyl. pattern since its arrival was due to shrinkage of the original pattern, this pattern being… | ||
| scan0176 | Series of questions regarding the costs and logistics for new engine pattern equipment. | ||
| View original record | -3- Rm1/R.17.11.38. (1) What new pattern equipment will be necessary to complete the range of engines specified.? (2) What will this equipment cost ? (3) How will the cost be divided between the… | ||
| scan0177 | Progress report on the production of crankcase and cylinder castings for Bentley 60 and 80 units. | ||
| View original record | C O P Y. BENTLEY 60 UNIT. Crankcase and Cylinder. EB.3778 Print to Pattern Shop (Direct from D.O.) 6.5.38. First casting received 12.8.38. (Total 3) Pattern modified to EB.4139. Print to Pattern Shop.… | ||
| scan0178 | Instructions for required parts for the water connections for a Bentley 60 Engine in a Wraith III Chassis. | ||
| View original record | 1044 [Crossed out text] To HFS. c.c. B.I. A.W.P. c. Rm/Ldr. C. Experimental HFS. [End of crossed out text] STD BY/CSL/EH.22.11.38. Re Bentley 60 Engine in Wraith III Chassis. Cylinder Head - Section… | ||
| scan0179 | The production of cast iron straight 8 engines and the interchangeability of parts with a planned aluminium version. | ||
| View original record | 1044 HPS. from Rm. Rm4/R.22.11.38. STRAIGHT 8 ENGINE. Please note that in view of the decision made to-day, we should like you to go forward with four of the present cast iron straight 8 engines only.… | ||
| scan0180 | Additional front crossmember for installing a Bentley B.60 engine into a Wraith III chassis. | ||
| View original record | BY/MS [strikethrough] c. Rm. 1044 DA.2/G.22.11.38. BENTLEY 60 ENGINE IN WRAITH 111 CHASSIS - ADDITIONAL FRONT CROSSMEMBER. Please receive herewith :- E.CD.1032 Additional Front Crossmember - B.60… | ||
| scan0181 | Internal memorandum detailing preparation instructions for a B.60 No. 1 UNIT for a 100-hour endurance run. | ||
| View original record | 1644 also spec. To HPS. from Rm/Swdl. Rm/Swdl.6/MH.23.11.38. B.60 No. 1 UNIT. We should like the above unit to be ready by Monday, the 28th. to commence a 100 hrs. endurance run. In view of this will… | ||
| scan0182 | Modifications to B.60 exhaust valves to prevent sodium leakage. | ||
| View original record | 1044 To HPS. from Rm/Swdl. c. Da/Jnr. c. By/CS. Rm/Swdl.19/MH.24.11.38. B.60 EXHAUST VALVES. The sodium filled exhaust valves fitted onto the above unit reveal that in several valves the sodium is… | ||
| scan0183 | Instructions for fitting a Bentley 60 Engine into a Wraith III chassis, focusing on cylinder head and carburetter air silencer modifications. | ||
| View original record | [Redacted] c. Rm/Swdl. c. [Redacted] 10HH [Signature] BY/CS5/EH.24.11.38. Re Bentley 60 Engine in Wraith III Chassis. Cylinder Head - Sec:5050. Carburetter Air Silencer - Sec:5082. Further to our… | ||
| scan0184 | New blueprints for a Bump Crown Piston on a Bentley 60 Chassis with a cast iron engine. | ||
| View original record | File 10HH [Crossed out text] c. RAG/WAG. c. Rm/Swdl. c. [Illegible] for WES BY/CS1/EH.24.11.38. Re Bentley 60 Chassis (Cast Iron Engine). Piston - Section 5040. PD.304 - Bump Crown Piston. Please… | ||
| scan0185 | Scheme detailing the clutch actuation for the B.60 engine unit in a Wraith III chassis. | ||
| View original record | BT/NS. c. Rm. 1044 DA.1/G.25.11.38. WYMAN B.60 ENGINE UNIT IN WRAITH 111. CHASSIS. G.CD.1034 CLUTCH ACTUATION - 10" C.F. CLUTCH. This scheme supersedes G.CD.1019. It accommodates the changes in clutch… | ||
| scan0186 | Modifications and repairs required for a B.60 Unit No.2 prior to chassis fitting. | ||
| View original record | 1044. & spec: To HPS. from Rm/Swdl. Rm/Swdl.4/MH.25.11.38. B.60 UNIT NO.2. We are returning the above unit for the following, prior to it being fitted in a chassis. (1) Remove existing EB.4332… | ||
| scan0187 | Authorising proceeding with the production of crankshafts and balance weights for B.60 units. | ||
| View original record | y 1044 - To HPS. from Rm/Swdl. Rm/Swdl.1/MH.26.11.38. B.60 UNITS. Further to our memo Rm/Swdl.2/MH.17.11.38, giving the specification for the above units in which the crank-shafts were held up in the… | ||
| scan0188 | Requesting an adaptation to the shape of exhaust ports for the Bentley 60 and 80 Cast Iron Engine. | ||
| View original record | To Mr. Walker (Pattern Shop) 104H a. Mr. Hives. [Struck out] c. Rm. c. Mr. Pry/Swadlincote. [Struck out] BY/CS7/EH.29.11.38. Re Bentley 60 and 80 Cast Iron Engine. Further to our conversation of even… | ||
| scan0189 | The adaptation of exhaust ports for the Bentley 60 and 80 Cast Iron Engine. | ||
| View original record | To Mr. Walker (Pattern Shop) 1044 c. HFS c. Rm. c.Rm/Swdl. BY/CS7/EH.29.11.38. Re Bentley 60 and 80 Cast Iron Engine. Further to our conversation of even date re the exhaust ports for the above… | ||
| scan0190 | Instructions and list of new drawings for the Bentley 60 Chassis (Cast Iron Engine) valves and fittings. | ||
| View original record | TO WEC. [Text Struck Through] c. BY. [Text Struck Through] c. Rm/Swdl. [Text Struck Through] c. Roy/Les for HPS [Text Struck Through] File 1044 BY/CS5/EH.29.11.38. Re Bentley 60 Chassis (Cast Iron… | ||
| scan0191 | Instructions and part replacements for the Bentley 60 Chassis with a 3.750 bore cast iron engine. | ||
| View original record | To HPS. [Struck through] c. BY. [Struck through] c. C.E.D./Id. [Struck through] c. Rm/Swdl. c. Designer for HPS. Pile 1044 BY/CS6/EH.29.11.38. Re Bentley 60 Chassis (Cast Iron Engine). 3.750 Bore. We… | ||
| scan0192 | Production instructions and component status updates for an engine intended for test bed purposes. | ||
| View original record | BY/CS6/EH.29.11.38. cont(d. (2) Section 5190 - Water Connections. Pending design. Section 5205 - Oil Relief Valves. To LOP. EB.3954, with the exception of:- EB.4174 Union which replaces E.84973.… | ||
| scan0193 | Blueprints for the Bentley 60 Chassis crankcase and bearings. | ||
| View original record | To HFS. (crossed out) c. ST. (crossed out) c. OHS/Wlu. (crossed out) c. Rm/Swdl. c. Experimental Acs. (crossed out) File 1044 BY/CS3/EH.29.11.38. Re Bentley 60 Chassis. (Cast Iron Engine). Crankcase &… | ||
| scan0194 | New plug for a sodium-cooled valve on a Bentley 60 Chassis to prevent leakage. | ||
| View original record | 1044 TO HPS. c.c. BY. c.c. HMc/Wld. c. Rm/Swdl. c. Roy/Les. for HPS. Plee BY/CS2/EH.29.11.38. Re Bentley 60 Chassis. Valves & Fittings - Section 5060. Plug in KE.965 for Sodium Cooled Valve. Please… | ||
| scan0195 | Specification for the build of four new I/C B.80 units, detailing crankcase, bearings, valves, and fittings. | ||
| View original record | 1044. & Spec: To HPS. from Rm/Swdl. c. Da/Jnr. c. Da/MCS. c. By/CS. Rm/Swdl.1/MH.30.11.38. B.80 UNITS. Regarding the 4 new I/C B.80 units, will you please build to the following specification.… | ||
| scan0196 | Specification sheet detailing modifications for various engine components across multiple units. | ||
| View original record | -2- Rm/Swdl.1/MH.30.11.38. Valves and Fittings - Cont'd. Nos. 1, 2 and 3 units to incorporate sodium filled exhaust valves EB.4378. No.4 unit to have solid exhaust valves EB.3854 as per LOP. Nos. 1… | ||
| scan0197 | Specifications and instructions for engine components including camshafts, crank dampers, and pistons for various units. | ||
| View original record | -3- Rm/Swdl.1/MH.30.11.38. Camshaft (LOP.EB.4314). No.1 unit in accordance with above LOP. (Camshaft EB.4105.) No.2 unit. Inlet and exhaust conforms to EB.4020/21 as per B.60 camshaft. EB.4268 and the… | ||
| scan0198 | Urgent memo detailing the failure of B.60 bottom tappets during an endurance run and requesting modified replacements. | ||
| View original record | 1044.4 1360. To HPS. from Hm/Swdl. c.c. Ey. c.c. RHC/TS. (Iron Foundry) c.c. Da/Jnr. c.c. Ds/Mos. c.c. H-J/CS. Hm/Swdl.1/MH.1.12.38. URGENT. B.60 BOTTOM TAPPETS. After a short endurance run of several… | ||
| scan0199 | The initial testing of the B.60 cast iron engine, detailing performance curves, reliability, and crankshaft damper issues. | ||
| View original record | 1044 SECRET. By. from Rm. c. Hs. c. Da. c. Da/Jnr. Rm8/R.1.12.38. B.60 CAST IRON ENGINE. We attach the latest horse-power curve which we have obtained from the cast iron engine compared with the B.III… | ||
| scan0200 | Note on the problem of the spring-driven crankshaft pinion on the Line 8 engine version. | ||
| View original record | -2- Rm8/R.1.12.38. The problem of the spring-driven crankshaft pinion should not arise on the Line 8 version of this engine. Rm. | ||
| scan0201 | Graph comparing the maximum power output of B.60 and B.III engines under open exhaust conditions with different camshafts. | ||
| View original record | OPEN EXHAUST COMPARISON OF B.60 AND B.III (MAX POWER) 1: B III 6.5:1 COMP 2: B 60 6.9:1 COMP (ORIGINAL CAMSHAFT) (EB 4026) 3: " (NEW ") (EB 4332) B.H.P. M.E.P. ① ② ③ | ||
| scan0202 | Installing a B.60 cast iron engine into a Wraith for road testing before committing to parts production. | ||
| View original record | 10wt SECRET. HPS. from Rm. Rm6/R.1.12.38. We are particularly anxious to get a B.60 cast iron engine in a car, the characteristics of which are familiar to us. We have, therefore, decided to put it in… | ||
| scan0203 | Status of various schemes for the B.60 engine installation in the W.111 chassis. | ||
| View original record | Rm. Rm/Swdl BY/NS.8/G.28.11.38. B.60 ENGINE IN W.111 CHASSIS. The following indicates the position of the schemes issued in connection with B.60 Engine in W.111 chassis :- E.CD.1032 Additional Front… | ||
| scan0204 | Instructions for assembling the B.60 No.1 unit for further endurance testing with specific new and modified parts. | ||
| View original record | 104H also spec. To HPS. from Rm/Swdl. Rm/Swdl.7/MH.1.12.38. B.60 No.1 UNIT. Will you please assemble the above unit for further endurance as follows. We are anxious to get running again as soon as… | ||
| scan0205 | Request for a detailed design of a machined aluminium water pump pulley to test and solve belt troubles. | ||
| View original record | 10HH also 1269 To By/Ald. from Rm/Std. Rm/Std.13/MH.1.12.38. Will you please detail for us as soon as possible, a water pump pulley for B.60 similar to EB.3925 but made as a machined aluminium piece… | ||
| scan0206 | Notification regarding new blueprints for strengthened tappets on Bentley 60 & 80 chassis. | ||
| View original record | [Stamp: Illegible] c. Rm/Swdl. 1044 BY/CS1/EH.2.12.38. Pale Re Bentley 60 & Bentley 80 Chassis. Valves & Fittings - Section 5060. PD.324 - Strengthened Tappets. Please receive herewith new blue prints… | ||
| scan0207 | Analysis of a water pump seal and bearings for B.60 and B.80 engines after a 10,000-mile test. | ||
| View original record | 10/H To By. from Rm/Std. c. Da. c. By/Ald. c. Da/McS. WATER PUMP SEAL & WATER PUMP BEARINGS - B.60 and B.80. We have been running a water pump to SCD.234 (which is fitted with a ball bearing and gland… | ||
| scan0209 | Request to produce two sheet metal brass bends for the B.60 Induction System. | ||
| View original record | 1044 To HPS. Rm/CTS.1/JH.2.12.38. B.60 Induction System. Will you please produce two brass bends (sheet metal) shown on Rm.564 attached. Rm/CTS. | ||
| scan0210 | Requesting the preparation of a set of B.60 belt pulleys with specific material instructions. | ||
| View original record | 1044 To HPS. from Rm/Std. Rm/Std.5/MH.2.12.38. Will you please prepare as soon as possible a set of B.60 belt pulleys as per Rm/Std.1/MH.7.12.38, i.e. to the latest detail drawings, the pulley… | ||
| scan0211 | To hold production on B.60 and B.80 crankshafts and crankcases for modifications. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.9/MH.2.12.38. B.60 & B.80 UNITS. Will you please hold up a B.60 and B.80 crankshaft in the forged state for No.4 and No.2 units respectively, also the crankcases so… | ||
| scan0212 | Technical instruction regarding a modified Dynamo Fixing Stay for the Bentley 60 engine. | ||
| View original record | RY/MS. [Strikethrough] c. RM. [Strikethrough] c. Rm/Swdl. 1044 Lde DA.2/G.3.12.38. BENTLEY 60. DYNAMO FIXING STAY. Please receive herewith :- E.CD.1079 Modified Dynamo Fixing Stay - Bentley 60.… | ||
| scan0213 | Push rods to be shortened to fit Wraith type bottom tappets into a B.60 endurance engine. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.6/MH.3.12.38. Will you please shorten the push rods we hand you herewith in order to fit the Wraith type of bottom tappets into our B.60 endurance engine. Rm/Swdl. | ||
| scan0214 | Details a modification to the Dynamo Fixing Stay for the Bentley 60 engine to improve its rigidity. | ||
| View original record | HY/MS. c. Rm. c. Rm/Swdl. 1044 File SWDL DA.2/G.3.12.38. SWDL BENTLEY 60. DYNAMO FIXING STAY. Please receive herewith :- E.CD.1079 Modified Dynamo Fixing Stay - Bentley 60. Rm/Swdl. reports that the… | ||
| scan0215 | Issues with water pump bearings and seals on B.60 & B.80 units and proposing a new Tufnol bearing design. | ||
| View original record | IOHH and 1269 To By/Ald. from Rm/Std. c. Da. c. Da/NCS. Rm/Std. 7/MH.5.12.38. WATER PUMP BEARINGS AND SEALS - B.60 & B.80. As you are aware, B.60 and B.80 water pumps are fitted with a Skefco ball… | ||
| scan0216 | Design of a Wraith water pump, specifically the gland sealing washer. | ||
| View original record | -2- Rm/Std.7/WR.5.12.38. We will hand to you a Wraith water pump incorporating our latest ideas on water lubricated bearings and think that we shall either need a carbon or bakelite gland sealing… | ||
| scan0217 | Temporary modification for B.60 & B.80 crankshafts due to issues with the harmonic damper. | ||
| View original record | 1044 also 1116 To HPS. from Rm/Swdl. Rm/Swdl.2/MH.6.12.38. B.60 & B.80 CRANKSHAFTS. In view of the trouble we have experienced with the harmonic damper on the above unit will you please leave all the… | ||
| scan0218 | Modifications to the Bentley 60 water pump, dynamo, and front engine mounting. | ||
| View original record | Files BY/NS. c. Rm. c. Rm/Swdl. c. BY/ED. 1044 DA.9/G.6.12.38. BENTLEY 60. WATER PUMP, DYNAMO AND FRONT ENGINE MOUNTING. Please receive herewith :- E.CD.1077 Modifications to Water Pump, Dynamo Stay… | ||
| scan0219 | Requesting modifications to the B.60 & B.80 Klingerit cylinder head joints. | ||
| View original record | 104H and 112H To By/CS. from Rm/Swdl. c. Da/Jnr. c. Da/McS. Rm/Swdl.4/MH.7.12.38. B.60 & B.80 KLINGERIT CYLINDER HEAD. We have had a request from the makers of the above joints to increase the steam… | ||
| scan0220 | Alterations to B.60 belt pulleys due to incorrectly manufactured 'Ferogrip' belts. | ||
| View original record | 1044 To B/AS. from Rm/Std. c. HPS. Rm/Std.1/MH.7.12.38. B.60 BELT PULLEYS. Referring to Rm/Std.5/JH.5.9.38, we find that the first "Ferogrip" belts delivered to us (to piece Nos. EB.3927 and EB.3948)… | ||
| scan0221 | Table of pulley dimensions specifying piece number, correct vee angle, and correct top width. | ||
| View original record | Rm/Std.2/MH.7.12.38. PULLEY DIMENSION - B.60. PULLEY | PIECE NO. | CORRECT ANGLE OF VEE. | CORRECT TOP WIDTH OF VEE C/Shaft double pulley (both Vees same) | EB.3974 | 31° | .610 Fan pulley | EB.3947 |… | ||
| scan0222 | Analysis of a valve gear failure on a B.60 unit and recommendations for design improvements. | ||
| View original record | 104H also 1360 To Da. from Rm/Swdl. c. Da/Jnr. c. Da/Mos. c. By/Cs. c. HFS. Rm/Swdl.3/AH.8.12.38. VALVE GEAR. During the endurance on the B.60 unit an inlet valve went into the cylinder and through… | ||
| scan0223 | New drawing for a water pump pulley which will replace a previous part. | ||
| View original record | HPS. c. Rm. c. Rm/Std. 1044. BY/Ald.21/C.8.12.38. B.60. WATER PUMP. SECTION 5160. Please receive herewith two blueprints of the following new drawing, detailed in accordance with… | ||
| scan0224 | Valve spring failures on B.60 and B.80 units and outlining temporary and trial replacements. | ||
| View original record | To HPS. from Rm/Swdl. c. Da/Jnr. c. Da/McS. c. By/CS. 1044. Rm/Swdl.1/MH.8.12.38. VALVE GEAR (B.60 & B.80 UNITS). Further to our specifications for B.60 and B.80 units respectively in which… | ||
| scan0225 | Designs for the exhaust system of a B.80 engine fitted into a Wraith 80 chassis, referencing Buick and Bentley parts. | ||
| View original record | 10HH BY/NS. c. Rm. c. Hm/Wym. c. Da/JD. Noted Please file JCS B.80 ENGINE IN WRAITH 80 CHASSIS - EXHAUST SYSTEM. Please receive herewith the following designs showing a complete exhaust system for… | ||
| scan0226 | Outlining designs for an exhaust system to fit a B.80 engine into a Wraith 80 chassis. | ||
| View original record | B.80 ENGINE IN WRAITH 80 CHASSIS - EXHAUST SYSTEM. Please receive herewith the following designs showing a complete exhaust system for this car, using the Buick 8 cylinder engine silencer as requested… | ||
| scan0227 | Modification for fixing Phantom III valve springs on B.60 Unit No.1. | ||
| View original record | 1644 . To HPS. from Rm/Swdl. Rm/Swdl.1/MH.9.12.38. B.60 UNIT NO.1. Further to our memo Rm/Swdl.7/JH.8.12.38, the fixing of Ph.III valve springs, there is a slight modification required as follows. (1)… | ||
| scan0228 | Requesting the modification of a crank damper on a Bentley 60 unit for a trial. | ||
| View original record | 1044. To HPS. from Rm/Swdl. Rm/Swdl.9/KH.9.12.38. BENTLEY 60 UNIT NO.2. Will you please modify the crank damper off the above unit in accordance with the memo By/Ald.9/G.8.12.38 for our trial.… | ||
| scan0229 | Crankshaft torsional oscillation issues on the B.60 engine and proposing an experimental solution. | ||
| View original record | 1044. By/Ald. from Rm. c. By. Rm2/R.10.12.38. In view of the troubles which have been experienced on B.60 engine due to crankshaft torsional oscillations breaking the distributor and drive, etc., we… | ||
| scan0230 | New steel tubular valve push rod with welded ends for B.60 and B.80 engines. | ||
| View original record | B.60 and B.80. ENGINES. VALVE PUSH RODS. PD.332 herewith shews the steel tubular type of push rod with welded on ends. This push rod with its ends and rocker screw are the only new parts which need… | ||
| scan0231 | The updated assembly specification for the B.80 No.1 Unit engine. | ||
| View original record | 1044. To HPS. Rm/Swdl.11/JH.12.12.38. B.80 No.1 Unit. In view of the experience gained since we instructed for the B.80 engines the assembly specification of the above unit should be as follows - (1)… | ||
| scan0232 | Requesting design schemes for a larger main journal crankshaft and a quieter Fabroil camwheel for B.60 & B.80 engines. | ||
| View original record | To By/Ald. c. to By. 1044. & 111G. Rm/Swdl.3/JH.13.12.38. B.60 & B.80 CRANKSHAFTS. (1) This memo. to confirm our verbal request that you will look into the possibilities and scheme out for a 2.75 dia.… | ||
| scan0233 | Engine programme and modifications for the B.60 and B.80 experimental units. | ||
| View original record | 1044 also spec. To HPS. from Rm/Swdl. Rm/Swdl.1/MH.15.12.38. B.60 & B.80 ENGINE PROGRAMMES. In view of the modifications that are going through based on the experience gained on the first engine, we… | ||
| scan0234 | Specification for modifications to crankshafts, spring drives, connecting rods, pistons, and cylinder heads. | ||
| View original record | -2- Rm/Swdl.1/MH.15.12.38. A further crankshaft should be made to SCD.1043, otherwise to EB.4487 which is R.R. balance weight crank with modified drilling and incorporates a spigot for the flexible… | ||
| scan0235 | List of specifications for engine components including valves, push rods, camshafts, and oil pump drive. | ||
| View original record | -3- VALVES & FITTINGS (No.2, 3 and 4 UNITS). Inlet Valve Springs to EB.4373 to be ordered from The Tempered Spring Co. Bottom washers to EB.4374. Inlet Valves. Nos. 3 and 4 units to have Motor… | ||
| scan0236 | Assembly and modification instructions for engine components including dynamo, induction, flywheel, and crankcase units. | ||
| View original record | -4- Rm/Swdl.1/MH.15.12.38. DYNAMO MOUNTING. Units already made should incorporate strength- ened stay ECD.1079. Future units to incorporate ECD.1077. INDUCTION SYSTEMS. The final specification to be… | ||
| scan0237 | List of specifications and modifications for various engine components, page 5. | ||
| View original record | -5- CRANKSHAFT. No.3 unit to have 2.75 journal crankshaft EXS.1279. Any further cranks in process of making should be held up. SPRING DRIVE. Nos.1, 2 and 3 units to include modified harmonic damper… | ||
| scan0238 | Official order for various trial engine components from Vandervell Products Ltd. | ||
| View original record | 10## To Roy. c. to G/JWH. Rm/Swdl.10/JH.15.12.38. Will you please pass an official order to Vandervell Products Ltd. for the following - These are all for trial on B.60 units (52469) (a) 4 pairs of… | ||
| scan0239 | Parts list for a Bentley 60, detailing components for the crankshaft, spring drive, and wheelcase. | ||
| View original record | HPS. c. Rm. c. Rm/Swdl. 1044 BY/Ald.16/G.15.12.38 BENTLEY 60. SECTION 5010 CRANKSHAFT. SECTION 5020 SPRING DRIVE. SECTION 5180 WHEELCASE & FITTINGS. Please receive herewith two prints of the following… | ||
| scan0240 | Modifications required for a list of finished machined parts. | ||
| View original record | - 2 - BY/Ald.16/G.15.12.38. The following finished machined parts appearing on the above LOP. will require modifying :- EW.931 Damper Wheel. 1 off. EW.928 Driven Dog. 1 off. SECTION 5020. EW.2004… | ||
| scan0241 | Blueprints and parts required for the Bentley 80, Spring Drive Section 5020. | ||
| View original record | 1044 HPS Rm. Rm/Swdl. BY/Ald.11/G.17.12.38. BENTLEY 80. SPRING DRIVE. SECTION 5020. Please receive herewith two blueprints of each of the following :- Ex.S.1318 Driving Flange. 1 off. Ex.S.1319 Damper… | ||
| scan0242 | The design of a harmonic damper, including a method for flywheel hub withdrawal and a comparison to a Vauxhall design. | ||
| View original record | BY/NS. G. Rm. 104H DA.9/G.19.12.38. B.80. HARMONIC DAMPER. The Works have asked for a means of withdrawing the flywheel hub from the crankshaft. We have shewn two tapped holes. At the same time we… | ||
| scan0243 | Requesting the preparation of one flywheel and clutch assembly for an 8-cylinder B. 80-1 unit, listing the required parts. | ||
| View original record | 104H also 1110 To RFS. c. to Da. c. to By/RM. c. to Rm/Fwd. c. to Rm/Cr. Rm/HRC.6/JH.22.12.38. re 8 cyl. B. 80-1 Unit. Flywheel & Clutch. Please prepare one flywheel to the drawings herewith - Rm.573… | ||
| scan0244 | Crankshaft and thrust washer parts for B.60 and B.80 engines. | ||
| View original record | HPS c. Rm. c. Rm/Swdl. 1044 BY/Ald.12/G.22.12.38. SECTION 5010. CRANKSHAFT. B.60 and B.80. Please receive herewith two prints of the following :- Ex.S.1278 Crankshaft 1 off (B.60). Ex.S.1279 " 1 "… | ||
| scan0245 | PD.340 Full Bump Pistons and Modified Combustion Chambers for the B.60 engine. | ||
| View original record | Poles BY/HS 10.HH c. Rm. DA.1/G.23.12.38. Sivell B.60. ENGINE - PISTONS. Please receive PD.340 Full Bump Pistons and Modified Combustion Chambers for the B.60 engine. The drawing shews the head cut… | ||
| scan0246 | Design specification for an eight-cylinder engine's cylinder head and valve gear. | ||
| View original record | BY./NS. c. Rm. DA.P/C.2.1.39. -1044 Sudl C.I. CONVENTIONAL 8 - CYLINDER HEAD AND VALVE GEAR. Please receive herewith :- E.CD.1122 Cylinder Head with Conventional Valve Gear - C.I. Conventional 8. The… | ||
| scan0247 | Request for experimental detailing and instruction for a cylinder head front end, referencing drawing E.CD.1126. | ||
| View original record | - 2 - DA.2/G.2.1.39. Further particulars of the front end of the cylinder head are shown on E.CD.1126. Will you please detail and instruct experimentally. DA. | ||
| scan0248 | Details design modifications for the C.I. Conventional 8 water pump, thermostat, and connections. | ||
| View original record | BY/NS c. Rm. [struck through] c. Rm/Swdl. [struck through] 10HH DA.1/G.2.1.39. C.I. CONVENTIONAL 8 - WATER PUMP, THERMOSTAT, BYE-PASS AND CONNECTIONS. Please receive herewith :- E.CD.1126 Water Pump,… | ||
| scan0249 | Urging progress on the Dual Induction System for scheme 864. | ||
| View original record | 10HH HPS. from Rm. Rm5/R.4.1.38. DUPLEX INDUCTION SYSTEM. Will you please urge the Dual Induction System to scheme 864 which was instructed in Ey/ALD6/G. 21.9.38. Rm. | ||
| scan0250 | The top water connections for an engine fitted in a Wraith 80 chassis. | ||
| View original record | BY/NS c. Rm. c. Rm/Std. c. Rm/Smdll 1044 DA.6/G.9.1.39. C.I. CONVENTIONAL 8. TOP WATER CONNECTIONS. W.A.R./smg Please receive herewith :- E.CD.1141 Water Connections - Top. C/I. Conventional 8. The… | ||
| scan0251 | Modifications to the crankcase and cylinders for the C.I. Conventional 8 engine. | ||
| View original record | 10HH BX/NS c. Rm. c. Rm/Swdl DA.1/G.10.1.39. Pdee SWDL C.I. CONVENTIONAL 8 - CRANKCASE AND CYLINDERS. Please receive herewith:- E.CD.1128 Modified Top Half Crankcase. C.I. Conventional 8. The… | ||
| scan0252 | Requesting the manufacture of parts for a B.80 unit to test for crank vibrations. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.2/MH.10.1.39. B.80 UNIT. Will you please make the necessary pieces to house the torsional indicator shaft off the B.60 Ex.32370 on to the above unit. So far as we… | ||
| scan0253 | Request to change the diameter of B.60 exhaust valves and detail both cooled and uncooled versions. | ||
| View original record | 1044 To By/Ald. from Rm/Ed. c. Da/Jnr. Rm/Ed.1/MH.10.1.39. B.60 EXHAUST VALVES. Will you please detail exhaust valves and seats for the above unit, to be 1.400" diameter instead of the present 1.500".… | ||
| scan0254 | Modifications to the bottom water connections, water drain tap, and radiator for the B.80 engine in a Wraith 80 chassis. | ||
| View original record | BY/NS c. Rm c. Rm/Std c. Rm/Swdl c. De/Ev c. De/JD 1044 DA.11/G.11.1.39. F. Droo B.80 ENGINE IN WRAITH 80. CHASSIS - BOTTOM WATER CONNECTIONS AND WATER DRAIN TAP. Please receive herewith :- E.CD.1091… | ||
| scan0255 | New blueprints for the Water Pump, Thermostat, and Connections of the Bentley C.I. Conventional Eight Engine (B.C.80). | ||
| View original record | IOHH c. Rm/Swdl. c. [REDACTED] BY/CS2/EH.12.1.39. Re Bentley C.I. Conventional Eight Engine (B.C.80). Water Pump - Section 5160. E.CD.1126 - Water Pump, Thermostat, Bye-pass and Connections. Please… | ||
| scan0256 | Trouble with B.60 & B.80 camshafts due to a lack of an oil release hole, requesting a design modification. | ||
| View original record | 1044 To By/CS. from Rm/Swdl. c. HPS. c. Da/McS. c. Da/Jnr. Rm/Swdl.9/MH.13.1.39. B.60 & B.80 CAMSHAFTS. On B.80 No.1 we experienced trouble due to the fact that the camshaft had no release hole at the… | ||
| scan0257 | Official order for parts to be placed with Vandervells. | ||
| View original record | 104H To Roy. from Rm/Swdl. c. G/JWH. Rm/Swdl.2/MH.17.1.39. Will you please pass an official order to Vandervells for the following parts. These were ordered during discussion with their representative… | ||
| scan0258 | New and replacement push rod parts for Bentley 60 and Bentley 80 models. | ||
| View original record | 10HH To HPS. c. BY. c. BHC/Wld. c. Rm/Swdl. c. Roy/Les. for HPS. Lecle BY/CS.4/B.19.1.39. Re: Bentley 60 and Bentley 80. Valves and Fittings. Section 5060. PD.332 - Push Rods. Please receive herewith… | ||
| scan0259 | Required modifications for a B.60 unit crankshaft damper following endurance testing. | ||
| View original record | 1044 also 1116 To By/Ald. from Rm/Swdl. c. Da/Jnr. c. Da/McS. Following the endurance on the B.60 unit, the condition of the crankshaft damper shows that various modifications are required. (1) The… | ||
| scan0260 | Wing clearances for the front wings of model 11.B.5. | ||
| View original record | To Da.. from Da/Ev. c. Rm. 459 Da/Ev.2/N.23.1.39. Front Wings of 11.B.5. PD.356 herewith shewing the wing clearances on 11.B.5. is issued to you for filing only. Rm (handwritten signature) Ev. | ||
| scan0261 | Lubrication issue with the valve gear on B.60 and B.80 units and proposing a modification. | ||
| View original record | 1044 also 1360 To HPS. from Rm/Swdl. c. Da/Jnr. c. Da/McS. c. By/CS. Rm/Swdl.1/WH.23.1.39. VALVE GEAR LUBRICATION B.60 & B.80. We have had scanty lubrication both to the push rods and the valve tips… | ||
| scan0262 | Information sheet detailing the specifications for the C.I. Conventional 6 cylinder head and crankcase. | ||
| View original record | EH/NS. c. to Rm. c. to Rm/Smt 1044 DA.5/G.24.1.39. C.I. CONVENTIONAL 6 - CYLINDER HEAD ETC. Please receive herewith :- E.CD.1167 Cylinder Head, Gasket - Crankcase Top Face. C.I. Conventional 6. The… | ||
| scan0263 | Note about forthcoming information on the water connections between the engine and radiator. | ||
| View original record | - 2 - DA.5/G.24.1.39. the water connections between the engine and radiator, with the cylinder head front cover included, this will be issued shortly, and will complete the information for the… | ||
| scan0264 | Recurring issue with cleaning B.60 and B.80 cylinder heads prior to anodic oxidation. | ||
| View original record | 104H To HPS. from Rm/Std. Rm/Std.4/MH.24.1.39. With reference to Rm/Std.5/JH.23.9.38, (copy attached), in which we requested you to exercise care to keep B.60 and B.80 cylinder heads clean prior to… | ||
| scan0265 | Two modifications to the B.60 cylinder head. | ||
| View original record | 104H To B?/Ald. Rm/Ed.1/JH.24.1.39. B.60 Cylinder head We send you herewith two modifications to the B.60 cylinder head, and we should be glad if you would mark up prints in order that the sketch Fig.… | ||
| scan0266 | Development of new cam forms for C.I. Conventional 6 and 8 engines. | ||
| View original record | 10HH BT/NS [Strikethrough] c. Rm. o. Rm/S.W.O.L. [Strikethrough] C.I. CONVENTIONAL 6 and 8. CAM FORMS. Please receive herewith :- E.CD.1171 Inlet and Exhaust Cam Form - C.I. Conventional 6 and 8. This… | ||
| scan0267 | Request to lay out an 8-cylinder engine on the inspection table for a weight analysis. | ||
| View original record | 1044 To HPS. from Rm. Rm.10/R.26.1.39. We should like the 8-cylinder engine which you are building up, laid out on the inspection table so that we can get a weight analysis of it. Rm. | ||
| scan0268 | Instructions for using the Bentley 111 induction system and carburetter on the C.I. Conventional 6 engine. | ||
| View original record | BY/HS. c. Rm. c. Rm/Swdl. c. Rm/CRS. IOHH DA.10/G.26.1.39. C.I. CONVENTIONAL 6 - INDUCTION SYSTEM AND CARBURETTER. With the Conventional design of cylinder head to design E.CD.1167, the inlet ports… | ||
| scan0269 | Modifications to the water pump, fan, and water connections for the C.I. Conventional 6 engine. | ||
| View original record | BY/HS. c. Rm. o. Rm/Swd. c. De/Rm o. De/ID IOHH DA.9/G.26.1.39. C.I. CONVENTIONAL 6 - WATER PUMP, FAN AND WATER CONNECTIONS. Please receive herewith :- E.CD.1168 Cylinder Head, Front End, Water Pump,… | ||
| scan0270 | The production and modification of engine components for the Bentley 60 chassis. | ||
| View original record | 1044 ABS. c. Rm. c. Rm/Ed. By/Ald.1/AW.30.1.39 BENTLEY 60 CHASSIS. CRANKCASE & BEARINGS. SECTION 5000. VALVES & FITTINGS. SECTION 5060. Please receive herewith 2 Blue Prints of each of the following:-… | ||
| scan0271 | Crankshaft modifications for the B.80 No.4 unit due to excessive oscillation. | ||
| View original record | 10HH also Spec. To HPS. from Rm/Swdl. c. By/Ald. Rm/Swdl.4/MH,31.1.39. B.80 No.4 UNIT (CRANKSHAFT). Having taken crank oscillation on B.80 NOJ unit we find the amplitude is greater than anticipated.… | ||
| scan0272 | Requesting blueprints for modified cylinder head parts for a Bentley 60 Chassis to experiment with eliminating detonation. | ||
| View original record | 1044 c. Rm. c. Rm/Ed. By/Ald.1/AW.31.1.39. BENTLEY 60 CHASSIS. CYLINDER. SECTION 5050. VALVES & FITTINGS. SECTION 5060. Please receive herewith 2 Blue Prints of each of the following parts, with an… | ||
| scan0273 | Valve gear lubrication for B.60 & B.80 engines, specifically the placement of grooves in the bush. | ||
| View original record | 1044 To HPS. from Rm/Swdl. c. Da/Jnr. c. Da/McS. c. By/CS. Rm/Swdl.4/MH.1.2.39. VALVE GEAR LUBRICATION (B.60 & B.80). Further to our memo Rm/Swdl.1/MH.23.1.39 regarding the inclusion of annular… | ||
| scan0274 | Modifications to the B.60 cylinder head, avoiding the need for sodium-cooled exhaust valves. | ||
| View original record | BY/NS. c. Rm. c. Da/Mo.S. 1044 SWDC - DA.6/G.2.2.39. File B.60. CYLINDER HEAD. Please receive herewith FD.368 modified cylinder head. The object is to avoid the necessity of using sodium, cooled… | ||
| scan0275 | Request to manufacture inertia rings for trial on B.60 and B.80 units to address crankshaft vibrations. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.5/MH.4.2.39. CRANKSHAFT VIBRATIONS. (B.60 & B.80). Will you please make the following inertia rings for trial on the above units. B.60 - 2 Off - 5.25" inside… | ||
| scan0276 | Instructing a hold on issuing detail drawings for a Conventional C.I. 6-Cylinder unit. | ||
| View original record | 1044 To By. from Rm. c. By/NS. Rm.9/MH.8.2.39. CONVENTIONAL C.I. 6-CYL. Please note that no detail drawings of this unit should be issued to HPS. until the position of the High Power unit has been… | ||
| scan0277 | On high power engines, discussing the test results of the B.60 engine and its departures from the existing 4-litre engine. | ||
| View original record | 10AH also 129a To By. from hm. c. Hs. c. Ds. c. RHC. c. HPS. c. DA/Jnr. c. DA/MOS. hm.1/MH.9.2.39. HIGH POWER ENGINES. In reading the attached report it must be remembered that we have had a B.60 on… | ||
| scan0278 | Report discussing unsolved problems regarding harmonic dampers and crank pinion spring drives on engines. | ||
| View original record | -2- Rm.1/W.W.9.2.39. Regarding Section (2). It is here that we have the unsolved problems. We have yet to develop the harmonic type of damper until it will stand up to the conditions on our engine.… | ||
| scan0279 | The development and testing of the Bentley 60 unit, detailing issues with the cylinder head and compression ratio. | ||
| View original record | To By. from Rm/Swdl. c. Hs. c. Da. c. RHC. c. HPS. c. Da/Jnr. c. Da/NCS. Rm/Swdl.2/EH.1.2.39. BENTLEY 60 UNIT TEST. We give herewith an up to date report of the development of the B.60 unit and its… | ||
| scan0280 | Page 2 of a report detailing engine modifications to improve performance, including changes to the transfer throat, exhaust valves, and water passages. | ||
| View original record | -2- account for such an alteration to the running of the engine, to quote, an "angel to a devil". This view was confirmed and was mainly found to be the reduction in transfer throat area, i.e. between… | ||
| scan0281 | Performance graph and analysis for a modified cylinder head with an increased throat and 6.8:1 compression ratio. | ||
| View original record | -3- ⑤ CYLINDER HEAD WITH INCREASED THROAT FD 292 BUT .070 MACHINED OFF HEAD FACE (COMP RATIO 6.8:1) STD PISTONS SODIUM FILLED EX.VALVES MAX. POWER NON DETONATING MEP lbs/sq" IGN. ADV. °BTDC RPM Curve… | ||
| scan0282 | Graph and analysis of engine performance, focusing on Mean Effective Pressure and detonation characteristics. | ||
| View original record | -4- ③ As CURVE ① But STD PISTONS .030 BELOW CYLINDER BLOCK 6.25:1 COMP RATIO ---- MAX POWER x---x NON DETONATING MEP IGN MEP lbs/□' IGN ADV. °BTDC R.P.M. Curve (3) with the cylinder head as designed… | ||
| scan0283 | Performance graph and analysis for raised crown pistons, showing Mean Effective Pressure and Ignition Advance against RPM. | ||
| View original record | -5- ④ As Curve ③ WITH PD 304 RAISED CROWN PISTONS AS DESIGNED 7:1 COMP. RATIO MAX. POWER x---x NON DETONATING MEP lbs/sq" MEP IGN * IGN ADV °BTDC RPM Curve (4). This condition is as Curve (3) but… | ||
| scan0284 | Performance graph showing Mean Effective Pressure and Ignition Advance against RPM for a modified engine configuration. | ||
| View original record | -6- hm/Swd1.2/MH.1.2.39. ② CYLINDER HEAD THROAT OPENED OUT TO PD 292 (SODIUM FILLED EX VALVES) RAISED CROWN PISTONS PD 304 WITH .100 MACHINED OFF TOP OF BUMPS. 6.8:1 COMP. RATIO MAX. POWER X-----X NON… | ||
| scan0285 | Graph and analysis of Mean Effective Pressure and Ignition Advance against RPM for a cylinder head test. | ||
| View original record | -7- RE/Swd1.2/MR.1.2.39. ① CYLINDER HEAD THROAT OPENED OUT TO PD 292 (SODIUM FILLED EX.VALVES) FLUSH TOP PISTONS 6.4:1 COMP RATIO ------- MAX POWER x-----x NON DETONATING MEP lbs/sq in IGN. ADV. °BTDC… | ||
| scan0286 | Summary of conclusions from engine performance tests, focusing on detonation, combustion chamber design, and power. | ||
| View original record | -8- Summarising the results of these tests the following conclusions are made. (1) The larger the throat area the better the maximum and non detonating power, to quote, 6.5 : 1 compression ratio with… | ||
| scan0287 | Issues and modifications related to crankshaft dampers. | ||
| View original record | -9- CRANKSHAFT DAMPER. We have experienced a considerable amount of trouble with the crankshaft damper, so much so that the oscillation comparisons taken with various loadings in trying to tune the… | ||
| scan0288 | Crankshaft oscillation, camwheel failure, and valve gear spring development. | ||
| View original record | -10- which speed the oscillation is .45 degree. After a further 34 hrs. the new camwheel failed in the same manner as the first, i.e. stripping the teeth. We cannot forecast how much we shall be able… | ||
| scan0289 | Engine component performance, comparing steel and dural rods, and camshafts. | ||
| View original record | -11- Regarding the differential expansion rate as affecting the inlet valve tappet clearance we find that steel rods are nearer to a constant figure than the Dural rods. The figures are as follows.… | ||
| scan0290 | Endurance testing issues with the distributor, AC petrol pump, and dynamo, with proposals for further tests. | ||
| View original record | -12- Since dropping the last Monichrome shaft and using the normal S/ZN shaft no further trouble has been experienced on the wear of the distributor driving teeth. During the endurance run, slack has… | ||
| scan0291 | List of engineering points regarding spring drive, combustion chamber, and induction systems. | ||
| View original record | -13- Rm/Swdl.2/MH.1.2.39. (2) Adaption of spring drive (Wraith type) to isolate cam wheel and shaft coupled with distributor and oil pump from the torsional oscillation of the crankshaft. (3)… | ||
| scan0292 | Power curve graph comparing BV and B60 engine units. | ||
| View original record | CURVE 6 COMPARISON OF BV UNIT AND B60 UNIT (POWER.) BOTH UNITS WITH STD. B.V. SYSTEM 2-1 1/2 S.U. CARBS. ① B60 - OPEN EXHAUST OPENED THROAT Po 292 AEROLITE PISTONS FLUSH WITH TOP OF BLOCK 6·4:1… | ||
| scan0293 | Graph of a torsional oscillation test on a B.60 engine, comparing different damper configurations and a Standard Wraith. | ||
| View original record | TORSIONAL OSCILLATION TEST ON B.60 B.60 DAMPER SET AT 219 LBS FT/DEGREE B.60 WITHOUT DAMPER STUDEBAKER DAMPER STUDEBAKER DAMPER WITH INCREASED INERTIA. STANDARD WRAITH ENGINE R.P.M AMPLITUDE (DEGREES)… | ||
| scan0294 | Requesting a report on the idling tests for the B.60 engine. | ||
| View original record | 1044 Rm/Wym. from Rm. Rm6/R.6.2.39. I should be glad if you would let me have a report on the idling tests on the B.60 engine as soon as they are completed. Rm. | ||
| scan0295 | Confirming a request to prepare schemes and drawings for various automotive components. | ||
| View original record | IOHH To By/Ald. from Rm/FJH. c. By. This is to confirm that we have asked you to prepare the following schemes and drawings. (1) Tufnol bearings for B.60 and B.80 water pump. (2) Fixed slats for… | ||
| scan0296 | Requesting the urgent creation of a mould for rubber bushes (TXS.1421) for B.60 and B.80 crank oscillations. | ||
| View original record | 1044 To HPS. from Rm/Swdl. Rm/Swdl.2/MH.11.2.39. Will you please instruct for a mould to be made to produce the attached rubber bushes (TXS.1421). We understand that you have previously made moulds… | ||
| scan0297 | Redesign of the cylinder head valve mechanism, comparing tubular and solid push rods. | ||
| View original record | BT/NS c. Rm. c. Da/Me.S. 1044 DA.4/G.13.2.39. Filer NEW B.60. CYLINDER HEAD. Please receive FD.378, shewing the valve mechanism details for the new head to FD.368. To prevent the push rod jumping out… | ||
| scan0298 | Requesting an additional sump with special fitments for B.60 test beds. | ||
| View original record | LOHH To HFS. Rm/Swdl.4/JH.14.2.39. B.60 (Test Tackle). Now that we have two B.60 test beds another sump with special fitments to cool the oil will be required. Will you please instruct a set to be… | ||
| scan0299 | Parts and drawings for adapting a Studebaker Harmonic Damper to a Bentley 80 crankshaft. | ||
| View original record | 1044 Messrs. [struck through] c. Rm. c. Rm/Swdl. [struck through] c. Dr. [struck through] By/Ald.1/AW.14.2.39. BENTLEY 80. HARMONIC DAMPER - SECTION 5020. Please receive herewith 2 Blue Prints of each… | ||
| scan0300 | Listing outstanding engine development jobs with expected completion dates requested. | ||
| View original record | HPS. file 1044 Rm/Swdl.3/C.14.2.39. The following is a list of outstanding jobs about which we should like some idea as to when it is expected that they will be complete :- (1). B.60 crankshaft with… | ||
| scan0301 | Blueprints for a Bentley 60 crankshaft damper, listing parts and quantities. | ||
| View original record | 1044 [Illegible crossed out text] c. Rm. [Illegible crossed out text] By/Ald.1/AW.15.2.39. BENTLEY 60. CRANKSHAFT DAMPER - SECTION 5020. [Signature: Rm] Please receive herewith two Blue Prints of the… | ||
| scan0302 | Machining difficulties with crankshafts made of .4 Carbon Steel for B.60 and B.80 engines. | ||
| View original record | SWPL 10HH Please let me know what Brinell the shop can machine Rm To DY. from HPS. c. Rm. HPS.5/VS.16.2.39. CRANKSHAFTS IN .4 CARBON STEEL. Difficulty has been experienced in machining crankshafts… | ||
| scan0303 | Requesting the design of a B.60 Induction System adapted from a Hudson Terraplane for the Bentley 60 Unit. | ||
| View original record | 10HH To By/Ald. from Rm/CTS. Rm/CTS.1/BA.17.2.39. B.60 Induction System. The Hudson Terraplane use an interesting arrangement, we should like you to scheme out a similar arrangement adapted to the… | ||
| scan0304 | Request for designs and detailed drawings for modifications to B.60 and B.80 engine units. | ||
| View original record | 1044 To By. c. to Da. c. to Da/MoS. c. to Da/Jnr. c. to By/CS. Rm/Swdl.6/JH.20.2.39. B.60 & B.80 Units. Will you please give us designs and detail drawings for the following. (1) Chain driven camshaft… | ||
| scan0305 | Requesting drawings for an induction system for the B.60 unit, adapted from a Continental Bentley V system. | ||
| View original record | -2- Rm/Cwdl.6/JH.20.2.39. shown in their layout L1118. (5) We have no basic induction system for the B.60 unit and up to the present have all been 'Mock up' systems. We should like drawings for the… | ||
| scan0306 | Modifications and manufacturing instructions for the crankcase, camshaft, and tappets of the C.I. Conventional 6 engine. | ||
| View original record | 1044 BR/HS. c. Rm/Swdl. DA.3/G.20.2.39. C.I. CONVENTIONAL 6 - CRANKCASE, CAMSHAFT & TAPPETS. Please receive herewith :- E.CD.1208 Top Half Crankcase, Camshaft and Tappets. C.I. Conv. 6. The… | ||
| scan0307 | Up-to-date programme for B.60 and B.80 units, detailing modifications to crankshafts and crankcases. | ||
| View original record | 1044 To HPT. c. to ft/Er. c. to RHC/Vs. c. to Da/Jnr. c. to Da/McS. c. to By/CS. Rm/Swd1.5/JH.20.2.39. B.60 - B.80 Units. We give herewith our up to date programme for the above units. B.80. It is… | ||
| scan0308 | Requirement for cranks to have a specific type of balance weights. | ||
| View original record | -2- Rm/Cwdl.5/JH.20.2.39. type of damper. The cranks should have the R.R. type of balance weights. Rm/Cwdl. | ||
| scan0309 | New drawings and blueprints for the Bentley 80 water connections. | ||
| View original record | c. Rm/Swdl. c. Roy/Les/Sow/HSS. [Struck through] fJH [handwritten] 10HH [handwritten] BY/CS1/EH.21.2.39. Re Bentley 80 - Conventional. Water Connections - Section 5190. Swdl [handwritten signature]… | ||
| scan0310 | Design modifications when changing from cast iron to aluminium, with a summary of a conference on the subject. | ||
| View original record | 1044 To Rm... from Da/Jnr. c.c. Da. Da/Jnr.6/N.21.2.39. Aluminium B.80. We have handed to you drawings: PD.308. PD.313. PD.316. PD.321. These designs shew the modifications necessary when changing… | ||
| scan0311 | Instructions regarding modifications to B.80 conventional engine patterns, including an alternative high-power top and expansion allowances. | ||
| View original record | 104H HPS. from Rm. c. Sft/EW. Rml/R.21.2.39. We shall be glad if you will now instruct the B.80 Conventional engine patterns. With regard to the alternative high power engine top to be available for… | ||
| scan0312 | Treatment and cleaning procedure for I/C crankcases for B.60 & B.80 engines. | ||
| View original record | IOW4 To HPS. from Rm/Swdl. Rm/Swdl.12/MH.22.2.39. TREATMENT OF I/C CRANKCASES FOR B.60 & B.80. We have further information on the most satisfactory treatment in respect of cleaning the crankcase free… | ||
| scan0313 | The development of patterns for a Conventional 8 and an aluminium dry-liner straight eight engine. | ||
| View original record | BP/NS. [struck through] c. Rm. 1044 SWD2 DA.5/G.22.2.39. STRAIGHT 8 ENGINE. The pattern for the Conventional 8 engine is being proceeded with, and it is desired to make the upper part suitable for a… | ||
| scan0314 | Change in material specification for inlet valve seats on B 60 and B. 80 units. | ||
| View original record | 1044 To BY. c. BY/CS. c. Da/Jnr. c. Da/Mc's c. HPS. Rm/Swdl 9/ER 22.2.39. B 60 and B. 80 Units. Will you please alter the specification of the inlet valve seats from N/MC to S 65. The former is an… | ||
| scan0315 | Ignition governor characteristics and timing curves for various engines. | ||
| View original record | 10HH also Hlic. To Rm/RC. from Rm/Swdl. c. By/RD. IGNITION GOVERNORS. Until any further modification is requested will you please see that the ignition governor characteristics comply with the… | ||
| scan0316 | Proposing to adhere to an original specification regarding a B.V. characteristic. | ||
| View original record | -2- Rm/Swdl.13/MH.22.2.39. Regarding the B.V. characteristic we propose to adhere to the original specification we gave in the memo Rm/Swdl.4/MH.4.2.38. Rm/Swdl. | ||
| scan0317 | Camshaft stress on the B.60 engine and investigating hairpin valve springs as a solution. | ||
| View original record | 1044 Rm/Swdl. from Rm. Rm5/R.23.2.39. In view of the short duration of our B.60 Valve openings and the large valves we employ, the stresses on the camshaft are high. Furthermore, it appears from the… | ||
| scan0318 | Development and comparison of an 8-cylinder engine against other models. | ||
| View original record | By. from Rm. c. Hs. c. Da. c. RHC. c. Mx. c. Da/Jnr. c. Da/MCS. 1044 Rm1/R.23.2.39. 8-Cylinder Engine. Having copied the major portions of the 8-cyl. engine from B.60 (on which we have already had… | ||
| scan0319 | Up-to-date report on the Bentley B.80 8-cylinder engine, detailing issues, proposed solutions, and performance comparisons. | ||
| View original record | To By. from Rm/Swdl. c. HS. c. DA. c. RHC. c. AX. c. DA/Jnr. c. DA/KCS. RM/Swdl.1/MH.23.2.39. BENTLEY B80 UNIT (8-CYLINDER). We give herewith an up to date report of the B.80 unit which is confined to… | ||
| scan0320 | 8-cylinder engine experiment report discussing induction, detonation, exhaust systems, and valve gear. | ||
| View original record | -2- It is hardly possible to comment on these results without knowing how much the characteristics of an 8-cylinder engine are involved. These engines have different valve lift curves. Experiments… | ||
| scan0321 | Engine component issues including tappet failure, oil supply problems, and crankshaft oscillations. | ||
| View original record | -7- Rm/Swdl.1/MH.23.2.39. After several curves the tappets became noisy and examination revealed several tappets broken and others scuffed. The scuffing was confined to the inlet valves and the cam… | ||
| scan0322 | The induction system, oil consumption, and main bearing performance. | ||
| View original record | -4- INDUCTION SYSTEM. The duplex system which is similar to the Buick gives good distribution in conjunction with the AA 25 Stromberg carburetter. As previously stated, any attempts to reduce the… | ||
| scan0323 | List of planned future engine tests and modifications. | ||
| View original record | -5- Rm/Swdl.1/MR.23.2.39. FUTURE TESTS. (1) The third engine will include the raised exhaust guide bosses with the object of improving the cooling of the exhaust valves. If efficient, it is quite… | ||
| scan0324 | Power comparison graph for B80 and B60 engine units. | ||
| View original record | COMPARISON OF B80 AND B60 UNIT (POWER) LEGEND: ① B80 (Solid Line): 5.7 LITRES EX 5925 IND'N PIPE OPEN EXHAUST (INCREASED THROAT PD.892) COMPRESSION RATIO 6.2 : 1.0 STANDARD AEROLITE PISTONS AA 25 TWIN… | ||
| scan0325 | Required Brinell hardness and machining difficulties for crankshafts made of .4 carbon steel. | ||
| View original record | HPS. [strikethrough] RHG. [strikethrough] Rm. ROY [strikethrough] Cgh/EM. [strikethrough] 1044 BY.5/G.23.2.39. CRANKSHAFTS IN .4 CARBON STEEL. HPS.5/VS.16.2.39. As explained on the telephone the 321… | ||
| scan0326 | Summary of a strip examination on a Bentley 60 No. 1 unit after a 50-hour endurance test. | ||
| View original record | 1044. To Rm. from HPS/EW. c. to By. c. to Da. c. to Rm/Swdl. HPS/EW.1/CB.24.2.39. BENTLEY 60 No. 1 UNIT. Herewith a summary of the strip examination on the above unit in accordance with… | ||
| scan0327 | Inspection report detailing the condition of engine components including pistons, cylinder head, valves, and camshaft. | ||
| View original record | -2- HPS/EW.1/CB.24.2.39. Pistons. LOP.EB.2833. All the pistons have been chalk tested and with the exception of No.3, are free from cracks. No.3 piston is cracked on three of the inner ribs, .300"… | ||
| scan0328 | Condition report on engine components including timing gears, oil pump, distributor drive, and water pump. | ||
| View original record | -3- HPS/EW.1/CB.24.2.39. Timing Gears. Condition good. Oil Pump & Drive. LOP.EB.3908. Except for minor scores on the inner walls of the casing, the pump itself is in reasonably good condition. The… | ||
| scan0329 | Photograph showing two columns of main bearings from a Bentley 60 No.1 unit after an endurance test. | ||
| View original record | BENTLEY 60; No.1 UNIT. Main Bearings after 50 hrs. Endurance Test. B.60 No.1 Unit. Main Bearings after 50 hours endurance test. | ||
| scan0330 | Photograph showing two rows of connecting rod bearings after a 50-hour endurance test. | ||
| View original record | BENTLEY 60: No.1 UNIT. Connecting Rod Bearings after 50 hrs. Endurance Test. | ||
| scan0331 | Photograph of a Bentley 6C No.1 unit oil pump top driving gear after a 50-hour endurance test. | ||
| View original record | BENTLEY 6C: No.1 UNIT. After 50 hrs. Endurance Test. Oil Pump Top Driving Gear (Ex.32668 in Caro-Bronze). | ||
| scan0332 | Photograph showing a Bentley 60 water pump spindle and bearing before and after a 50-hour endurance test, highlighting corrosion. | ||
| View original record | BENTLEY 60: No.1 UNIT. After 50 hrs. Endurance Test. Corrosion on Water Pump Spindle (SKF. sealed bearing type BB.3930). | ||
| scan0333 | Photograph of a failed inlet valve spring after a 50-hour endurance test. | ||
| View original record | BENTLEY 60: No.1 UNIT. E.46854 Inlet Valve Spring, after 50 hrs. Endurance Test. | ||
| scan0334 | Photograph showing twelve bottom tappets from a Bentley 60 No.1 Unit after a 50-hour endurance test, arranged in two columns. | ||
| View original record | BENTLEY 60: No.1 UNIT. Bottom Tappets after 50 hrs. Endurance Test. | ||
| scan0335 | Test report detailing cylinder bore dimensions before and after a running test. | ||
| View original record | UNIT No B.60. No.1 PASSED TO TEST:- 17-9-38 COMPLETED TEST:- 15-2-39 CYLINDER BORE DIMENSIONS CYLINDER BLOCK EB 3778 MATL: I/C. RUNNING TIME :- 197HRS. 20MINS. (92HRS. 45MINS. F.T.) MILEAGE :-… | ||
| scan0336 | Dimensional inspection report for main bearings, detailing measurements before and after testing. | ||
| View original record | MAIN BEARINGS DIMENSIONS UNIT Nº B60 No.1. PASSED TO TEST :- 17-9-38 COMPLETED TEST :- 15-2-39 RUNNING TIME :- 197 HRS. 20 MINS. MILEAGE :- ( 92 HRS. 45 MINS. F.T.) CRANKSHAFT: EB.3867 MATL: V.C.M.… | ||
| scan0337 | Test report detailing connecting rod bearing and crankpin dimensions before and after running. | ||
| View original record | UNIT Nº B.60. No.1 PASSED TO TEST :- 17-9-38 COMPLETED TEST :- 15-2-39 CONN: ROD BEARINGS & CRANKPIN DIMENSIONS CONN: ROD BEARINGS :- Ex. 31502 MATL :- AC.9 CRANKSHAFT :- EB. 3867 MATL :- V.C.M. TEST… | ||
| scan0338 | Piston profile wear measurements for six 'Aerolite' high crown pistons following a timed test. | ||
| View original record | UNIT No B.60 No.1 PASSED TO TEST 11-1-39. COMPLETED TEST 15-2-39 RUNNING TIME 74 HRS. 10 MINS. MILEAGE 55 HRS. 15 MINS F.T. PISTON PROFILES PISTONS AEROLITE IDENTIFICATION No HC. 'HIGH CROWN' RELIEVED… | ||
| scan0339 | Development of cutting techniques and tools for .4 carbon steel crankshafts. | ||
| View original record | 1044 To RHO. from HPS. c. DV. c. Rm. HPS.1/VS.24.2.39. CRANKSHAFTS IN .4 CARBON STEEL. With reference to the development of suitable cutting technique and tools for the above material, the remaining… | ||
| scan0340 | The teardown and analysis of a 6-cylinder high-power engine after 190 hours of testing. | ||
| View original record | IOHH Hs. from Rm. c. By. c. RHC. Rml/R.25.2.39. 6-cyl. High Power Unit. We have now stripped this unit after 190 hours' running. The first 140 hours consisted of develop-ment work in which the engine… | ||
| scan0341 | The B.60 No.1 unit 50-hour endurance test, detailing unit specifications and running conditions. | ||
| View original record | 1044 To By. from Rm/Swdl. c. Da. c. Da/Jnr. c. Da/McS. B.60 ENDURANCE (NO.1 UNIT). Prior to commencing the 50 hour endurance this unit had run a total of 140 hours development work at all speeds up to… | ||
| scan0342 | Engine endurance test results, including performance metrics and component failures. | ||
| View original record | -2- Fuel. Shell No.1. Oil. Motorine 'C' with inlet temperature controlled to 100°C. Oil pressure 28-33 lbs/sq.in. Silencer. Test bed exhaust system which is a free system and loses only 3% to max.… | ||
| scan0343 | Various component failures during an endurance run. | ||
| View original record | -3- Failures - Cont'd. The collective damper troubles have been reported in our memo Rm/Swdl.2/MH.1.2.39. In view of the mechanical unreliability of the R.R. damper it was decided to continue with the… | ||
| scan0344 | Engine component failures and inspection results, including comparisons with Bentley components. | ||
| View original record | Failures - Cont'd. Regarding the rocker cover, the platform on the cylinder head to seat the joint washer is not sufficiently wide and a slight distortion of the washer allows it to squeeze in. Also… | ||
| scan0345 | Inspection report detailing the condition of engine parts and conclusions after a development run. | ||
| View original record | -5- Hm/Swdl.3/MH.25.2.39. Inspection of Parts - Cont'd. Fitted with 3 exhaust valve inserts (Brico) and 3 seats cut direct in the cylinder block, the condition of them are almost identical and… | ||
| scan0346 | Request for a new induction pipe with a larger bore for an 8-cylinder engine to enable further testing. | ||
| View original record | 1044 To By. c. to Da. Rm/CTS.5/JH.25.2.39. 8 Cylinder Engine. Further to Rm/Swdl's. report reference Rm/Swdl. 1/MH.23.2.39. With the existing induction pipe, the depression in the riser is the same as… | ||
| scan0347 | Request to produce drawings for mounting a Sperry Torsiograph on B.60 and B.80 cranks. | ||
| View original record | 1044 To By/Ald. from Rm/JRS. Rm/JRS.2/MH.27.2.39. Will you please produce the necessary drawings to mount the Sperry Torsiograph on the B.60 and B.80 crank as discussed. Rm/JRS. | ||
| scan0348 | Tappets fouling the camshaft journals on B.60 & B.80 units, with a suggested modification. | ||
| View original record | 1044 To By. from Rm/Swdl. c. By/CS. c. Da/McS. c. Da/Jnr. c. HPS. Rm/Swdl.3/WH.27.2.39. B.60 & B.80 CAMSHAFTS. B.80 No.1 unit has been dismantled and we find that in several cases the bottom edge of… | ||
| scan0349 | Design memorandum for a crankshaft with increased diameter journals and revised balancing for the B.60 and C.I. Conventional 6 models. | ||
| View original record | BY/BY c. Rm. c. Rm/ 10HH DA.5/G.28.2.39. B.60 and C.I. CONVENTIONAL 6 - CRANKSHAFT WITH INCREASED DIAMETER JOURNALS AND REVISED BALANCING. Please receive herewith :- E.CD.1227 Crankshaft with… | ||