Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Layout for the front end of the chassis, detailing the starting handle, blower position, and axle forging modifications. | ||
| View original record | BY. FROM DA. X24T C. to SG. WOR. HS. E. BENSPORT. DA3/M27.8.32. Herewith is N.sch. 3529. This shews a layout of the front end of the chassis giving the front end of the starting handle (which is… | ||
| scan0002 | New drawing for the Bentley Starting Handle and future crossmember design changes. | ||
| View original record | To BY. from E/JNR. x267. E/JNR.6/HP.7.9.33. c. Wor. Slt. Hs. re Bentley Starting Handle. We send you herewith drawing: LeC.3618 shewing the new design of the Starting Handle for the first 15 Bentley… | ||
| scan0003 | Proposing a modification to the Bentley starting handle cover hinge pin from rivetting to sweating on a washer. | ||
| View original record | To BY. from E. Rm x247? E.6/HP.3.7.34. c. Hs. Hinge Pin - Starting Handle Cover - Bentley. We should like to know if you would agree to alter the standard drawings in connection with the above to what… | ||
| scan0004 | Confirming an alteration to the detail drawings for the hinge pin of the Bentley chassis starting handle cover. | ||
| View original record | E. c. Hs. X247 BY/Cgh.12/G.5.7.34. BENTLEY CHASSIS - STARTING HANDLE COVER. E.6/HP.3.7.34. This is to confirm that we are altering our detail drawings for the hinge pin of the above to be in… | ||
| scan0005 | Standardisation of parts form for a tunnel and cover for a starting handle. | ||
| View original record | 88 785B (SH) (57394. 30-1-34) BM 3/787/1 COMPLETED 18.10.34. BENTLEY STANDARDISATION of PARTS. Date 27-9-34 18.9.34. X No. 247. Drawing No. Part List Description of Parts. TUNNEL & COVER FOR STARTING… | ||
| scan0006 | Cost estimate for extra production equipment and the start of its use on the 'A' series chassis. | ||
| View original record | STANDARDISATION of PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.18.9.34 ) - £22.0.0. This came on to production at 181st chassis in "A" series. | ||
| scan0007 | Modifications to a Bentley starting handle and bumper bar. | ||
| View original record | To E. from Hs/Rm. X247 Hs/Rm.4/KW. 8.12.34. Bentley Starting Handle. Replying to E.2/HP.7.12.34. We arranged the bumper bar on Mr. Fairey's car so that there was room to rotate the starting handle: On… | ||
| scan0008 | Requesting a design alteration for a tunnel tube cover to reduce cost from 3s.3d. to 7d. | ||
| View original record | GRY: Do we agree with this Rm 247 Hs. Roy. Hy. E. BY. Rm. from RHC/GH. RHC/GH.1/IB.8.12.36. We should be greatly obliged if you could alter your design of E84742 - Cover for Tunnel Tube, made in… | ||
| scan0009 | Chromium plating of part E.84742 and suggesting a color comparison test. | ||
| View original record | 247 To RHC. from Rm/Gry. Rm/Gry.3/AP.9.12.36. Re. RHC/GH.1/IB.8.12.36. We presume that if the part E.84742 is made in Dixtampo, it will then have to be chromium plated. Before sinking a die we suggest… | ||
| scan0010 | Comparing production costs for a re-designed Starting Handle Cover on the 25/30-HP Chassis. | ||
| View original record | Hs. PY Rm. Hy. 247 25/30-HP CHASSIS. At present Starting Handle Cover E.84742 is produced as a Staybrite Pressing and costs 10d per stamping, plus machining - total cost 3/3d, as per memo… | ||
| scan0011 | Authorizing a cost-saving material change for the 25/30 HP chassis starting handle cover to Staybrite. | ||
| View original record | ROY/MS. C. HS. O. E. O. Rm. C. HS. 1003 BY/Cgh.9/W.28.1.37. 25/30 H.P. Chassis : Starting Handle Cover. With reference to ROY/Msl/P.22.1.37 in regard to the suggestion that the starting handke covers… | ||
| scan0012 | The design, materials, and cross-chassis application of the Wraith III starting handle guide. | ||
| View original record | SECRET 1003. To BY. Copy to Da. Rm. RHC. HPS. E/PSN.1/MN.23.3.37. Wraith III Starting Handle Guide at Base of Radiator. We send you herewith LeC.5576 of a starting handle guide and flap for the Wraith… | ||
| scan0013 | Design and testing of a lightened one-piece starting handle for the Phantom III model. | ||
| View original record | To BY. Copy to E. De. Rm. Ev E/JNR E/Lid. 1003 Sales Send Photo to him on test bed GR7 E/PSN.3/MN.16.4.37. Lightened One-piece Starting Handle - Phantom III. We send you herewith LeC.5610 of a… | ||
| scan0014 | Cost-reduction analysis for the starting handle design, comparing different models and manufacturing practices. | ||
| View original record | SECRET To: Mr. [redacted] Copy to Mr. [redacted] Handwritten notes: Top Right: 1003 Action RW/STD STD Please arrange to test GRT Left Margin: Starting Handle PW Main Text: MODIFICATION TO CHASSIS… | ||
| scan0015 | Technical memorandum discussing design improvements for the starting handle and grille trap. | ||
| View original record | Our own practice in using a two piece handle has arisen due to difficulties of stowing away the handle in one piece. Now that it is usually carried under the bonnet it is felt that an endeavour must… | ||
| scan0016 | Cost, design, and feasibility of different front support bearings for the starting handle. | ||
| View original record | The most favourable quotation which we have so far for the castings is 21d each for 1000 with tool charges of £20.0.0. A small amount of machining only would be required in addition to drilling. The… | ||
| scan0017 | Design alternatives and cost analysis for vehicle handles for the Wraith III and Phantom III models. | ||
| View original record | -4- We now submit the following alternatives for your consideration, and should be pleased to have the views of Sales on the handle outside the bumpers and any comments or suggestions from the other… | ||
| scan0018 | Proposed scheme for a starting handle mounted outside the bumpers and its application to Bentley and Wraith models. | ||
| View original record | -5- R/TSE.1/M.CS.4.37. P.III. (Cont'd) A further scheme has been prepared and will be instructed, of a starting handle outside the bumpers with the front bearing carried off the bumpers. This scheme… | ||
| scan0019 | Blueprint illustrating four different designs of car starting handles. | ||
| View original record | RR 25/30 & BENTLEY 1 WRAITH III. 2 SOLID HANDLE 3 CHEVROLET 4 | ||
| scan0020 | Blueprint showing three design variations for a component for the Phantom III model. | ||
| View original record | PHANTOM III (ORIGINAL) 5 PHANTOM III - TUBULAR 6 PHANTOM III - TUBULAR WITH HANDLE OUTSIDE BUMPERS. 7 | ||
| scan0021 | Revised scheme for the starting handle to be located outside the bumpers, aiming for a cost reduction. | ||
| View original record | Copy to Mr. [redacted] Mr. [redacted] Mr. [redacted] Mr. [redacted] Mr/CFFH. Handwritten notes: Plating Handle PM 1003 STT (circled) E/PEN.1/H.30.4.37. Written RM/SM STARTING HANDLE OUTSIDE THE… | ||
| scan0022 | Alternative solid one-piece starting handle for the Wraith III. | ||
| View original record | SECRET To Mr. [Redacted] Copy to Mr. [Redacted] Mr. [Redacted] Mr. [Redacted] Mr. Rowledge Handwritten: Starting Handle W.III STD 1003 WRA RM/STD ALTERNATIVE SOLID ONE PIECE STARTING HANDLE - WRAITH… | ||
| scan0023 | Modifications to the chassis starting handle to reduce costs. | ||
| View original record | [Handwritten top center]: 1208 To-S. from Sg. Copy to Ha.Gx.BY. ~~WHS.Rm.WFB.H-V/CSM.~~ ~~E/Lias.~~ Modification to Chassis Design to reduce Costs. Starting Handle. [Handwritten right]: W.Rm / SID… | ||
| scan0024 | Instruction to manufacture 12 sets of support brackets to correct an earlier omission. | ||
| View original record | To HPS. 1003 Rm/Std.6/JH.21.6.37. We omitted to instruct 12 sets of starting handle bush support brackets when instructing 12 sets of 5 blade fans and drives. As a new support bracket will be required… | ||
| scan0025 | New cost-reduced models of starting handles for the Phantom III and Wraith. | ||
| View original record | Handwritten (top): GRX - what is the story attached to this. Has Sg seen them Handwritten (red): 1003 Handwritten (right, sideways): Further Sg. 139 ku To Rm. from HPS. STARTING HANDLES. We are… | ||
| scan0026 | Instructing the completion and fitting of a starting handle for a Ph.III to car 33-EX. | ||
| View original record | To HPS. from Rm/Std. 1003 Rm/Std.8/AP.1.7.37 Ph.III. Starting Handle Outside Bumper Bar -LeC.5610. As you have now completed the starting handle for the above scheme, we should like you to complete… | ||
| scan0027 | Schemes for the Bentley 111 front bumper and starting handle, suggesting an appearance mock-up for approval. | ||
| View original record | F. Dept. (Strikethrough) c. Rm. O. FD. (Strikethrough) 200B 1003 Da.9/G.30.8.37. GRY W.M.Rhu/SMD BENTLEY 111. Please receive herewith the following schemes :- F.CD.10 Starting Handle and Front Bumper… | ||
| scan0028 | Modification scheme for the Phantom 111 front cross member, changing the starting handle support bracket. | ||
| View original record | DW/JAS. (struck through) G. Rm. (struck through) 1003 DA.7/G.13.9.37. FRONT CROSS MEMBER - PHANTOM 111. Herewith the following scheme :- F.CD.55 Modified Starting Handle Support Bracket. This bracket… | ||
| scan0029 | Standardisation sheet for a new fan, drive, and starting handle to overcome idling overheating issues. | ||
| View original record | 1003 also 1324, 1310 To RHC. from Rm/Std. Spare Rm/Std.6/AP.10.10.37. Ph.III. Fan, Drive and Starting Handle. We have issued a Standardisation Sheet for a new Ph.III. Fan and Drive, which necessitates… | ||
| scan0030 | Storage position of the one-piece starting handle on the Phantom III chassis. | ||
| View original record | RE. ONE-PIECE STARTING HANDLE We have found a place on the Phantom III Chassis where this handle could be carried and JLE agrees that carried in this position it would not interfere with the fitting… | ||
| scan0031 | Two defects with the cheapened and lightened starting handle for the Wraith, requiring correction. | ||
| View original record | To By. from Rm/Std. 1003 Rm/Std.3/AP.27.10.37. When detailing the cheapened and lightened starting handle for Wraith, will you please ensure that the following two defects are corrected:- (1) As at… | ||
| scan0032 | Instruction sheet regarding the Wraith III Chassis Starting Handle, listing component tracings for revision and production. | ||
| View original record | [REDACTED] c. Rm/Gry. STD 1003, BY/CSZ/MH.27.10.37. [Handwritten Signature: W O'Roy/STD] Re Wraith III Chassis - Starting Handle - Sec:527C. --------------------------------------------- 6 sets.… | ||
| scan0033 | The standardization and modification of the Phantom III five-blade fan and starting handle. | ||
| View original record | To By. c. to RHC. 1003 also 324 Rm/Std.6/JH.27.10.37. Phantom III Five Blade Fan and Cheapened Starting Handle. We issued a standardisation sheet some time ago for a five blade fan for Phantom III… | ||
| scan0034 | The introduction of a modified one-piece starting handle for the Phantom III 'E' series chassis. | ||
| View original record | To Sg. & Hs. EY & Rm. DA. MX. 1003. RHC.1/LS.4.11.37. [Handwritten annotations: GRY, STD, W. Roby (STD)] PHANTOM III. STARTING HANDLES. Regarding the introduction of the modified Phantom III. One… | ||
| scan0035 | Instruction regarding the accommodation of the one-piece starting handle for the Phantom III 'E' series. | ||
| View original record | BY/HEB. BY/CS. c. Rm/Gry. (003. BY/Mtnll/N:3.2.38. Phantom III - Starting Handle. S T I In view of the fact that LA. has demonstrated the one piece starting handle can be accommodated on the… | ||
| scan0036 | Request to make two Wraith starting handles for specific production chassis. | ||
| View original record | 1003. To HPS. Rm/Std.11/JH.8.3.38. Will you please make as soon as possible two Wraith starting handles as instructed for 100 production chassis - these are required for 27.G.VI. and 25.G.VI. with its… | ||
| scan0037 | Wraith starting handle and spot lamp support bracket made from manganese bronze. | ||
| View original record | 1003 To HPS. from Rm/Std. c. Rm/Wym. Rm/Std.7/MW.15.9.38. We hand you herewith a Wraith starting handle bearing and spot lamp support bracket made in manganese bronze. Except for the material this… | ||
| scan0038 | Requesting the interchange of spring drive starting-handle dogs between two Wraith III units. | ||
| View original record | 1003. HBS. from Rm/Std. c. Rm/Swdl. Rm/Std10/R.8.11.38. 28.C.VI - CAR-STARTING HANDLE. Will you please interchange the spring drive starting-handle dogs of Wraith III No.5 unit (28.C.VI) and Wraith… | ||
| scan0039 | Note concerning the starting handle and front bumper for the Silver Dawn and Silver Wraith models. | ||
| View original record | Da Rm. 7D. Da/SD 1003 Da/Eg. 3/n. 8.7.39 Starting Handle + front Bumper - Silver Dawn + Silver Wraith. see file 1023. | ||
| scan0040 | Visit from frame supplier Rubery Owen concerning difficulties with Wraith II and Bentley III frames. | ||
| View original record | To E. Copy to MR. Mr F.R. Smith. HFS. E/Ev.2/MN.22.1.37. 1010 Report on Visit of Messrs.Rubery Owen re Frames. ******************************************* Mr.Buckley, Chief Draughtsman, and… | ||
| scan0041 | Issues with welding a frame and the decision to modify the Bentley 111 frame. | ||
| View original record | -2- together and the welder will either burn the metal or not make a proper weld so that the frame will be pulled and distorted. During a previous visit this design was shown to Mr. Buckley who raised… | ||
| scan0042 | Visit to Rubery Owen to discuss the manufacture of 25/30 HP chassis frames. | ||
| View original record | 1010 To Sg. and Ms. From RHU. C. to E. C. to Ry. C. to Jsm. RHC.12/MJ.29.1.37. VISIT OF MESSRS. RUBERY OWEN RR. FRAMES. Mr. Buckley, Chief Draughtsman, and Mr. Curmin, Works Manager of the Frame… | ||
| scan0043 | Meeting minutes discussing frame production changeover with supplier Rubery Owen and addressing manufacturing difficulties with the Wraith frame. | ||
| View original record | -2- RHC.12/MJ.29.1.37.Cont'd. built up a surplus of say 30 frames, which will enable us to make a complete changeover of all our tools and jigs without stopping production. It was impossible, Mr.… | ||
| scan0044 | Frame channel and cruciform member discrepancies and instructions for investigation. | ||
| View original record | -3- RHJ.12/MJ.29.1.37.Cont'd. (2) Messrs. Rubery Owen were instructed to cut the frame to length, with the result that both channels are .125 short at the front end and .175 at the rear end. Since we… | ||
| scan0045 | Frame construction defects, material choices, and pricing for the Wraith frame. | ||
| View original record | -4- RHO12/MJ.29.1.37. Cont'd. (9) The stiffening plates at the front end of each channel are badly out of position. In each case the outer plates are low, bringing the bosses badly out of centre,… | ||
| scan0046 | Recommendation to arrange a visit for Mr. A.C.H. Owen of Messrs. Rubery Owen to discuss a situation. | ||
| View original record | -5- RHC.12/EJ.29.1.37.Cont'd. We recommend that arrangements should be made for Mr. A.C.H. Owen, Managing Director of Messrs. Rubery Owen, to visit us to discuss the whole position. RHC. | ||
| scan0047 | Letter to The Projectile & Engineering Co. Ltd. arranging a meeting to discuss motor frames. | ||
| View original record | Newfile Rm/Smth.9/AP. Experimental Department 2nd. February 1937. The Projectile & Engineering Co.Ltd., Acre Street, New Road, Wandsworth Road, LONDON S.W.8 Dear Sirs, Motor Frames If convenient to… | ||
| scan0048 | Letter from The Projectile & Engineering Company confirming a meeting regarding motor frames. | ||
| View original record | Please address all communications to the COMPANY. CONTRACTORS TO H.M. GOVERNMENT. 1010 ENGINEERING EMPLOYERS' FEDERATION 1896 NATIONAL SCHEME FOR DISABLED MEN THE SOCIETY OF MOTOR MANUFACTURERS &… | ||
| scan0049 | Visit to Projectile & Engineering Co. to discuss the supply and cost of motor frames. | ||
| View original record | 1010 Hs. from Rm/Smth. c.c. to E. Rm/Smth3/R.8.2.37. Motor Frames. We have visited the Projectile & Engineering Co. of Battersea to discuss the question of motor frames. These people claim to be the… | ||
| scan0050 | Letter to Rubery Owen Ltd. requesting the delivery date for the third experimental frame. | ||
| View original record | 1010 (Experimental Dept.) Rm/Smth10/M 16th February, 1937. Messrs. Rubery Owen Ltd., DARLASTON, South Staffs. Dear Sirs, For the attention of the Motor Frame Dept. Further to your letter of the 30th… | ||
| scan0051 | Outlining an agreement with Rubery Owens for the phased production of 25/30 HP chassis frames. | ||
| View original record | Smith 1810 To Hives From RHO. C. to H-y [crossed out] C. to H. [crossed out] C. to Rvs. [crossed out] C. to Rn. [crossed out] RHO.2/MJ.22.2.37. 25/30 HP. CHASSIS FRAMES. With reference to… | ||
| scan0052 | Visit to Messrs. Rubery Owen & Co. Ltd. to discuss the production of Wraith frames. | ||
| View original record | MARTINDALE Please note File 10 10 To Hs. from HPS. c.c. to Rm. VISIT TO MESSRS. RUBERY OWEN AND CO. LTD. RHO/TVT. and myself visited Messrs. Rubery Owen yesterday in order to discuss various matters… | ||
| scan0053 | Cost estimates for a completely assembled frame and a separate quote for its individual components and manufacturing processes. | ||
| View original record | - 2 - out certain alterations which should facilitate assembly. Finally, the question of costs was dealt with in detail and Mr. Sinnott was asked to prepare and submit estimates on the following lines… | ||
| scan0054 | Modifications to the Phantom III and Bentley rear crossmembers. | ||
| View original record | By. Copy to Mr. Hm. RHOT. HES. RHO/TVT. E/Ev.S/M.25.6.37. PHANTOM III. AND BENTLEY REAR CROSSMEMBERS. -------------------------------------- With respect to RHC/TVT.4/MND.3.6.37, and the discs which… | ||
| scan0055 | Letter to Messrs. Rubery, Owen & Co. Ltd. requesting a cost estimate for parts for sample frames and a larger order of 1000 frames. | ||
| View original record | 1010 ? + m/Les.3/MH. 29th. October 1937. Messrs. Rubery, Owen & Co. Ltd., Darlaston, South Staffs. For the attention of Mr.Sinnatt. Dear Sirs, Referring to our telephone conversation, will you please… | ||
| scan0056 | Comparative table of frame stiffness measurements for various car models and frame types. | ||
| View original record | 1010 also 200B FRAME STIFFNESSES. Torque required to twist lft. length of frame through 1°. ,lbs.ft between wheel planes.,lbs.ft. dash to rear axle.,lbs.ft. dash to front wheels.… | ||
| scan0057 | Modifications to the Bentley 111 and Bentley 50 frame rear end. | ||
| View original record | BY/NS. C. Rm. 10/0 DA.1/G.26.4.38. A. MARTINDALE BENTLEY 111. and BENTLEY 50. FRAME. Please receive herewith the following scheme :- F.CD.633 Box Section Frame Side Members - Rear End. The above… | ||
| scan0058 | Scheme for hand holes in the front end of the frame for Bentley 111 and Bentley 50 models. | ||
| View original record | MARTINDALE DA/NS. C. RM. 1010 DA.4/G.26.4.38. BENTLEY 111. and BENTLEY 50. FRAME. Please receive herewith the following scheme F.CD.654 Hand holes in front end of frame. The above scheme shews the… | ||
| scan0059 | Forwarding a letter from Mr. C. W. Glover concerning the measurement of frame noises in fighter aircraft. | ||
| View original record | A.F.M. Rm. Measurement of Frame noises Rm Dor/Hny.2/EKB. 10. 5. 38. We attach letter from Mr. C. W. Glover. He is carrying out considerable work in connection with some of the latest Fighters, where… | ||
| scan0060 | Letter from an acoustical consultant regarding the silencing of engine exhausts. | ||
| View original record | CHARLES W. GLOVER M.INST.C.E., M.I.STRUCT.E., M.INST.R.A. MEMBER ACOUSTICAL SOCIETY ACOUSTICAL CONSULTANT TELEPHONES { TEMPLE BAR 4053, 4054 { MACAULAY 5388 REF. 713. YOUR REF.......... SHELL-MEX… | ||
| scan0061 | Letter from the Experimental Department discussing chassis noise amplification and silencing problems. | ||
| View original record | +o56 1010 EXPERIMENTAL DEPT. Rm/AFM.6/JH. 13th May, 1938. Charles W. Blower Esq., Shell-Mex House, Victoria Embankment, W.C.2. Your ref. 713. Dear Sirs, With reference to your letter addressed to our… | ||
| scan0062 | Letter to Briggs Motor Bodies Ltd. requesting a quotation for a modified frame and discussing tooling and rivet options. | ||
| View original record | 1010. Rm/Les3/R. 20th May, 1938. N.H. Manning, Esq., Briggs Motor Bodies Ltd., Dagenham, ESSEX. Dear Mr. Manning, In your letter to us dated March 22nd, you gave us a quotation of £7.4.6. each for the… | ||
| scan0063 | Scheme for temporary shock damper brackets for existing Bentley 50 and 3 frames. | ||
| View original record | 1010 tomo DA/Rm. [crossed out] c. Rm. DA.2/G.30.5.38. MARTINDALE BENTLEY 50 and 3. FRAME. Please receive herewith the following scheme F.CD.702 Temporary Shock Damper Brackets for existing frames. The… | ||
| scan0064 | Comparing the torsional strength and weight of a Jaguar frame versus a plain box section frame. | ||
| View original record | To By. from Rm/AFM. c. Da. c. Da/Iv. 1610 also 107a Rm/AFM.6/MH.2.6.38. BOX SECTION FRAME. We have measured the torsional strength and weight of the Jaguar frame for the purpose of obtaining a… | ||
| scan0065 | Comparison of the S.S. Jaguar frame against the Bentley III frame, focusing on torsional strength and weight. | ||
| View original record | Rm/Clapham.7/WH.2.6.38. S.S. JAGUAR FRAME. [Diagram of a car frame with dimensions] 10' 7'6" 2'6" 1640 lbs.ft./degree 2560 lbs.ft./degree 1000 lbs ft/degree Comparisons between cruciform frame & box… | ||
| scan0066 | Part replacement instructions for Bentley III and Bentley 50 chassis. | ||
| View original record | 1016 To HPB c c/o GRP c Rm/AFM c Rm/hss BY/HEB.4/WB.23.6.38. BENTLEY III CHASSIS. BENTLEY 50 CHASSIS. FRAME & FITTINGS - SEC : 7000. REAR SPRINGS - " 7030. OIL PIPES & FITTINGS - " 7142. AFT. SHACKLE… | ||
| scan0067 | Scheme for a Bentley 3 and 50 frame, detailing an experimental flash butt welding method for the front crossmember end sockets. | ||
| View original record | DY/NS. [crossed out] c. Rm. 1010 DA.13/G.6.7.38. AER [initials] BENTLEY 3 and 50. FRAME. Please receive herewith the following scheme F.CD.779 Front Crossmember with Flash Butt Welded End Sockets.… | ||
| scan0068 | Adjustments to frame heights and ground clearance for the B.50 and Silver Wraith models. | ||
| View original record | 1810 also 666. To Da.. from Da/Ev. c. By. c. Mr. c. RM/AFM. c. De/BB. c. BY/JD. Da/Ev.1/N.15.7.38. B.50 & Silver Wraith 50. Frame Heights. We understand that it has been agreed that we should raise… | ||
| scan0069 | Instruction to John Thompsons to produce one Wraith replacement and two Bentley 50 frames, and a request to arrange for remaining parts to be sent. | ||
| View original record | 1010. To HPS. c. to Rm. ROY/Les.1/B. 10.8.38. We have instructed John Thompsons to produce one Wraith replacement Frame and two Bentley 50 Frames to the latest drawings. Thompsons will produce the… | ||
| scan0070 | The material specifications for B.3 and B.50 frames, comparing suppliers and production methods. | ||
| View original record | 1010. To Rm. ROY/Les.6/B. 26.8.38. The material specification for the B.3 and B.50 Frames acquired from John Thompsons is as follows :- Carbon .20 - .25 Sulphur .038 Phosphorous .04 Manganese .5 The… | ||
| scan0071 | Scheme for a redesigned starting handle bearing and centre lamp bracket for Bentley 3 and 50 models. | ||
| View original record | SY/MS C. Rm. VOID DA.15/G.8.9.38. 8B Z 9B 10B 11B un STD BENTLEY 3 and BENTLEY 50. FRAME. Have seen this. Front bracket only? Please receive herewith the following scheme :- hln 2B50 F.CD.844 Starting… | ||
| scan0072 | Outlining the timeline for frame completion to enable production material ordering and die creation. | ||
| View original record | 1010 To Da/Ev. from Rm. c. Rm/AFM. Rm.11/MH.23.9.38. In order to allow production material to be ordered by March 1939, the frame will have to be completed by the end of November of this year so that… | ||
| scan0073 | Scheme for adding stiffness to the front end of the frame for B.111, B.50 and Wraith 80 models. | ||
| View original record | 1010 DT/NS. c. Rm. ---------- DA.16/G.31.10.38. A.F.MARTINDALE Further Stiffening of Front End of Frame. B.111, B.50 and Wraith 80 - PD. 295. This scheme shows a method of adding slight further… | ||
| scan0074 | Requesting the current usage of a portable arc welder to check power supply adequacy in the Bump House. | ||
| View original record | 1010 also 1024 1024. 1209. KPS. from Rm/AFM. c. SJJ. Rm/AFM5/R.9.11.38. PORTABLE ARC WELDER. We understand that you have ordered a portable motor-generator set for arc welding. Can you please say what… | ||
| scan0075 | The torsional stiffness of Humber, Hillman, and Sunbeam-Talbot car frames. | ||
| View original record | 1010 Ref. from Da/DB. C.c. HY, Rm, Rm/AFM, Ex, Da/DB. Da/DB.1/G.24.11.38. HUMBER, HILLMAN AND SUNBEAM-TALBOT FRAMES. I mentioned in my report on this year's Motor Show that Rubery Owen's had promised… | ||
| scan0076 | Comparative table of frame twist data for Hillman, Humber, and Sunbeam Talbot models. | ||
| View original record | Hillman 14 HP. Frame. Humber 16, Snipe/Super Snipe/Sunbeam Talbot 3/4 Ltr. Applied Torque lbs. ft. Twist over 11 ft. length in degrees. Twist over 9'6" wheelbase in degs. Twist over 11 ft. length in… | ||
| scan0077 | Proposal to consolidate frame drawings for the Bentley V, Bentley 50, and Silver Wraith models. | ||
| View original record | 1010 BY. a RM. c HMR. c BG. c RHS. Roy/Les 8/ER 1.12.38. A.F.M -> Bentley frame drawings. We consider that the present method of having separate drawings for Bentley V - Bentley 50 and Silver Wraith… | ||
| scan0078 | Simplification of frame drawings for the Bentley V, Bentley 50, and Silver Wraith models. | ||
| View original record | 1010? ROY/Les. BY/HHD. c. Fm. c. HFS. c. De. c. RHO. BY/NS.15/G.2.12.38. BENTLEY V. BENTLEY 50. SILVER WRAITH. In reply to memo ROY/Les.8/ER.1.12.38, the question of simplification of the frame… | ||
| scan0079 | Scheme for a stiffened starting handle and support bracket for Bentley 111 and 50 frames. | ||
| View original record | 1010 BY/MS c. Rm. c. Da/Ev. c. Da/JD. DA.5/G.3.12.38. BENTLEY 111 and BENTLEY 50. FRAME. Please receive herewith the following scheme :- F.CD.1036 Stiffened Starting Handle and Support Bracket. The… | ||
| scan0080 | Confirming an urgent order for various frames and requesting a cost estimate. | ||
| View original record | Roy/Les. from Rm. c. By. 1010 Rm3/R.5.12.38. FRAMES. Confirming our conversation, the following is the order of urgency for the various frames which have been released:- 3.B.50 Continental B.V. B.V.… | ||
| scan0081 | List of work and tests required for various shock damper components and systems. | ||
| View original record | 1010. To Rm/Clm. Rm/AFM.14/JH.13.12.38. The following is a list of work in which you are interested :- SHOCK DAMPERS. Gordon Armstrong Rear, for ) (Fixing & arm design required. Continental B.V. )… | ||
| scan0082 | Issues and required actions for vehicle frames. | ||
| View original record | -2- Rm/AFM.14/JH.13.12.38. FRAMES. Strength of individual Side Members. Torsion tests. B.50 Front end trouble. Measure strength of new frames. See By/Mr. Bower in re-strength calculations. Continental… | ||
| scan0083 | Shock dampers and frames. | ||
| View original record | Elm. 1010. Rm/97M.14/JH. 13.12.38. Shock Dampers & frames. see file 1292. | ||
| scan0084 | Invoice from John Thompson Motor Pressings Ltd. for welding a Bentley III Frame. | ||
| View original record | 1010? Rm/AFM G/WFH/CA.27/MG.14.12.38. We have an invoice dated the 3rd ulto. from John Thompson Motor Pressings Ltd., charging us 17/6d. for welding 1 - Bentley III Frame. Apparently your letter of… | ||
| scan0085 | New scheme for the petrol tank and spare wheel mounting on a Continental B.V. frame. | ||
| View original record | 1010 also 40Dc, To HPS. Rm/Cr.14/JH.15.12.38. Continental B.V. Frame. On the Continental B.V. frame which is to Ass.FB.3658 a new scheme for the petrol tank and spare wheel mounting is being prepared.… | ||
| scan0086 | Payment to John Thompson Ltd. for welding a B.V. frame. | ||
| View original record | 1010 also 427. To Roy/Ms. c. to G/WFH/CA. Rm/APM.12/JH.30.12.38. Welding one B.V. Frame. With reference to G/WFH/CA.27/MG.14.12.38. will you please pay John Thompson Ltd. the sum of 17/6d. for welding… | ||
| scan0087 | Modification instruction for a support bracket and valance plate on Bentley 5 and 50 models. | ||
| View original record | A.F.M. BY/NS. c. Rm. c. De/ID. 4010 DA.14/G.6.2.39. BENTLEY 5 and BENTLEY 50. Please receive herewith the following scheme :- F.CD.1189 Mod. to Support Bracket and Valence Plate. The above scheme… | ||
| scan0088 | Letter from the Experimental Department inquiring about a pneumatic nibbler tool for cutting sheet steel. | ||
| View original record | 1010. EXPERIMENTAL DEPARTMENT. Rm/Clm.9/JH. 8th. May, 1939. Messrs. Broom & Wale Ltd., High Wycombe, BUCKS. For the attention of Horace S. Broom Esq. Dear Sirs, We want a tool for cutting sheet steel… | ||
| scan0089 | Letter from Broom & Wade Ltd declining to quote for a tool suitable for cutting sheet steel. | ||
| View original record | 1010. PLEASE NOTE NEW TELEPHONE Nº HIGH WYCOMBE 1630 (6 LINES) ESTABLISHED 1898 BROOMWADE DIRECTORS: H. S. BROOM . HORACE S. BROOM . C. BROOM SMITH . S. R. CLAY . E. ELWESS . R. S. FROGGATT BROOM &… | ||
| scan0090 | Requesting an order for two Bentley V frames for development and testing purposes. | ||
| View original record | 1010. Roy/Les. from Rm. Rm3/R.12.5.39. Will you please order a 092 Bentley V frame for the first Ripple, and a 092 B.V. frame with a bent front pan which we shall use to test the 8-cylinder in a thin… | ||
| scan0091 | Stiffness tests on a chassis frame without a cruciform member. | ||
| View original record | 1010 To By. from RM/AFM. c. Da. c. Da/DB. c. Da/JD. RM/AFM.9/MH.12.5.39. FRAME WITHOUT CRUCIFORM MEMBER. We have used a scrap frame as a rig to mock up what is, in effect, an approximation to the… | ||
| scan0092 | Potential weight saving and stiffness improvements for a vehicle frame by using the petrol tank as a cross-member and adopting welding. | ||
| View original record | -2- Rm/AFM.9/MH.12.5.39. It may be necessary to add a cross member to the final frame between the rear spring front anchorages, adding 8 lbs. of weight; this can only be determined by experiment. It… | ||
| scan0093 | Photograph of a vehicle chassis on Avery weighing scales in a factory. | ||
| View original record | AVERY | ||
| scan0094 | Request to produce two bent front pans for light gauge frames to be tested for stiffness. | ||
| View original record | 1010 HPS. from Rm. Rm1/R.13.5.39. LIGHT GAUGE FRAMES. Will you please produce two bent front pans in 092 gauge for two frames which we are ordering from Messrs. Thompson. These frames will not be… | ||
| scan0095 | The ordering of frames and parts for Silver Wraith and Silver Dawn models. | ||
| View original record | 1010 To By. from Rm/NRC. c. Ds. c. By/NS. c. By/HEB. c. HPS. Rm/NRC.7/MR.22.5.39. FRAMES. Please order side members, X members and parts in common with Clipper, for the following frames. The bent… | ||
| scan0096 | Figures for steering column movements during front end shake measurements. | ||
| View original record | 10/0 To Rm/AFM. from Rm. Rm.6/MH.12.7.39. FRONT END FRAME SHAKE. I should like figures of steering column movements at the same time as you measure front end shake. Rm. | ||
| scan0097 | Request for an experimental Corniche frame to replace one smashed up in France. | ||
| View original record | 1010 + 4009. To Les. Rm.14/JH.12.8.39. EXPERIMENTAL FRAMES. We require a Corniche frame to replace the one smashed up in France as soon as ever possible. Will you please get into touch with John… | ||
| scan0098 | Chassis frame thickness rationalisation and the manufacturing implications of using common dies. | ||
| View original record | 1010 + 1022 To Rm. from Ev. c. to Rm/Gry. c. to Les. c. to Ev. Ev.1/JH.2.11.39. re Chassis Frames - Senior Rationalised Programme. The B.V. frame thickness is .104" and dies have been sunk, For… | ||
| scan0099 | Letter to a supplier regarding the feasibility of using existing dies for a Bentley chassis frame with a different material thickness. | ||
| View original record | Copy Rm. "" Rm/Gry. "" Ev. 1010 Ev.S/EH. 8th. November 1939. Messrs. John Thompson Ltd., Chassis Frame Section, Wolverhampton. Dear Sirs, Re. Bentley Chassis Frame. We would be very pleased if you… | ||
| scan0100 | Material and tooling for the Ripletto Frame. | ||
| View original record | 1010 & 1022 To Evr c. to Rm. c. to Rm/Gry. Les.3/B.10.11.39. Information from John Thompson's with regard to Ripletto Frame in .064" material. We attach copy of our letter addressed to John Thompsons… | ||
| scan0101 | Short memo confirming that two pieces of low carbon material will be sufficient for Geoffrey Summers of Summers Chester. | ||
| View original record | 1010 17/11/39. GEOFFREY SUMMERS, SUMMERS CHESTER. TWO PIECES LOW CARBON MATERIAL WILL BE SUFFICIENT ROBOTHAM. | ||
| scan0102 | Letter to John Summers & Sons confirming a telephone conversation and an order for steel sheets with specific carbon content. | ||
| View original record | 1010 Rm.12/MH. 17th. November, 1939. G.Summers, Esq., Messrs. John Summers & Sons Ltd., Hawarden Bridge Steel Works, Shotton, CHESTER. Dear Geoffrey, Confirming our telephone conversation today, we… | ||
| scan0103 | Material requirements for light gauge 'Ripple' and 'Ripplet' frames. | ||
| View original record | 1010 SUMMERS - 200 Connahs Quay - To Rm. Les.1/B.17.11.39. The material required for the light gauge "Ripple" and "Ripplet" frame should be 15' long x 32" wide x .064" thick. We suggest that 8 pieces… | ||
| scan0104 | Letter to John Summers & Sons Ltd. regarding a steel supply problem and future post-war motor car plans. | ||
| View original record | ID|D Rm.1/MH. 22nd. November, 1939. G. Summers, Esq., Messrs. John Summers & Sons Ltd., Hawarden Bridge Steel Works, Shotton, CHESTER. Dear Geoffrey, Thank you for your letter of November 18th. I am… | ||
| scan0105 | Page 2 of a letter to G. Summers regarding post-war travel plans and current work on aircraft. | ||
| View original record | G.Summers, Esq. -2- 22nd. November, 1939. I think we should try and organise a trip round the Dolomites when peace breaks out. I had a delightful ten days just before the War, Switzerland, Cortina,… | ||
| scan0106 | Letter from steel manufacturer John Summers & Sons regarding the properties and supply of sheet steel. | ||
| View original record | TELEGRAMS: SUMMERS, CHESTER. TELEPHONE: 200 CONNAH'S QUAY (10 LINES). JOHN SUMMERS & SONS, LIMITED. ESTABLISHED 1851. MANUFACTURERS OF GALVANIZED CORRUGATED AND PLAIN STEEL SHEETS, BLACK SHEETS AND… | ||
| scan0107 | Letter from John Summers & Sons, Ltd. regarding a strip mill visit and an attached laboratory report. | ||
| View original record | JOHN SUMMERS & SONS, LIMITED, SHOTTON, CONTINUANCE No. 1. 24th November, 1939. I shall wait until it drops to pieces under me, and then buy an Austin 10 or some similar machine !! Do try to come and… | ||
| scan0108 | Laboratory report detailing the analysis and testing of metal sample Sm 9. | ||
| View original record | LABORATORY. 24th. NOVEMBER 1939 Sample No. Sm 9 To Mr. G. Summers - Order No. 147/S/3 for Messrs Rolls Royce 2 sheets 180" x 32" x .064 ex Stock Card 8358 Rolled 20th. Nov. Temp. on holding table… | ||
| scan0109 | Photomicrographs of 16g. hot rolled strip from a Continuous Strip Mill. | ||
| View original record | continuation No.1 Photomicrographs of 16g. hot rolled strip from Continuous Strip Mill. Magnification X 100. Etched in 5% HNO3 Edge of strip Middle of strip. Copies Mr. A.R.Gray Mr. G. Paul FILE. | ||
| scan0110 | Requesting an opinion on the laboratory analysis of sheet steel for frames. | ||
| View original record | To By/EM. from Rm. c. Les. 1010 Rm.9/MH.25.11.39. We have received the attached analysis of some sheet steel we are getting for frames. They are going to push the carbon up to .2 for the next delivery… | ||
| scan0111 | Laboratory report detailing the chemical analysis and mechanical properties of a metal sheet sample. | ||
| View original record | LABORATORY. 24th. November, 1939. Sample No. Sm.9 To Mr. G. Summers - Order No. 147/S/3 for Messrs. Rolls-Royce 2 sheets 180" x 32" x .064" ex Stock Card S358. Rolled 20th. Nov. Temp. on holding table… | ||
| scan0112 | Letter to a steel supplier requesting a figure of merit comparison for different carbon steels used in frames. | ||
| View original record | 1010 Rm.8/MH. 28th. November, 1939. G. Summers, Esq., Messrs. John Summers & Sons Ltd., Hawarden Bridge Steel Works, Shotton, CHESTER. Dear Geoffrey, I would like to get a figure of merit for the .3… | ||
| scan0113 | Physical properties of material for frames, specifically the carbon content and its effect on strength and weldability. | ||
| View original record | Rm. BY/EM.1/GH.28.11.39. MATERIAL FOR FRAMES -------------------- 1010 With reference to your memo Rm.9/MH.25.11.39., we have considered the physical properties and analysis of the material already… | ||
| scan0114 | Issuance of a further batch of drawings for the Ripplet chassis frames and fittings. | ||
| View original record | 1010 & 1022 To HPS. c. HPS/RH. Rm/CTS.1/BA.1.2.40. Ripplet Chassis. Frames and Fittings. We send you herewith, a further batch of drawings for the Ripplet frame, issued by Ev. in the following… | ||
| scan0115 | Further drawings for the Rippletto chassis frames and fittings. | ||
| View original record | 1010 + 1022. To HPS. c. HPS/RH. Rm/CTS.3/BA.1.2.40. Rippletto Chassis. Frames and Fittings. Further to our memo Ev/HH.1/23.1.40, we send you herewith, further drawings for the above frame. These are… | ||
| scan0116 | Brief report on unsuccessful experiments to simplify the bent front pan design. | ||
| View original record | 1010 To Ev. Rm/Clm.10/ML.19.2.40. FRONT PAN. Here is a brief report from Clapham on the experiments he has done on trying to simplify bent front pan, so far without success. I agree that until we get… | ||
| scan0117 | Modifications to the Bent Front Pan to reduce cost, weight, and improve assembly, including a table of results. | ||
| View original record | To Rm. Bent Front Pan. The bent front pan is too expensive and it was also thought that it might be unnecessarily heavy. It is expensive because it is an extremely awkward pressing. This pressing can… | ||
| scan0118 | Diagrams and notes detailing modifications to a pan component, including views and cross-sections. | ||
| View original record | Underneath view of pan. Original lower plate in ink on left. Lighter " " " " right. 3 Assembly holes were put in the vertical wall of the pan at the points marked X. They were 1 1/2" diameter, centre… | ||
| scan0119 | The investigation of lightening short frame gussets, including torsion test results for a Silver Dawn frame. | ||
| View original record | 100 To Ev. from Rm/Clm. C. Lee. Rm/Clm.5/MH.8.3.40. SHORT FRAME GUSSET. We have investigated the possibility of lightening the short gussets on rationalised frames, and have found that this can be… | ||
| scan0120 | Sketch of a B.V. Frame. | ||
| View original record | SKETCH OF B.V. FRAME. D B C A ROLLS-ROYCE LTD. PRINT ROOM 17 MAR 1940 DERBY. RM 610 | ||
| scan0121 | The Rippletto frame, including details on a second crossmember, spare wheel housing, and petrol filter specifications. | ||
| View original record | 1010 41022 To Rm. from Ev. c.c. to Ev/HH. Ev.9/JH.12.3.40. Re Rippletto Frame. Attached herewith are 2 prints of PL.119 showing the second crossmember for the Rippletto frame. This will enable Ev/HH.… | ||
| scan0122 | Blueprints for a Left Hand Silver Phantom's front pan. | ||
| View original record | 1010 & 1046 To Rm. c. to Ev. Ev/HH.3/JH.19.3.40. Frame Left Hand Silver Phantom. PL.84. Front Pan - Section 7000. Please receive herewith blueprints of RF.349 Front Pan. Please instruct asrequired.… | ||
| scan0123 | The distribution of blueprints and prints for the L.H. Senior Range vehicle. | ||
| View original record | File 1010 To Rm c. to Ev Rm/HH 5/9.4.40. L.H. Senior Range Pedals Sec 7100 Wiring Sec 7360 Frame and Fittings Sec 7000 PL 71 Pedals- Brake and Clutch PL 102 Pedal Gap Plate and Footswitch. Please… | ||
| scan0124 | Listing blueprints and parts for the L.H. Senior Range vehicles. | ||
| View original record | To Rm [text struck through] File 1010 Rm/HH 5/9.4.40. L.H. Senior Range Pedals Sec 7100 Wiring Sec 7360 Frame and Fittings Sec 7000 PL 71 Pedals- Brake and Clutch PL 102 Pedal Gap Plate and… | ||
| scan0125 | Additional blueprints being sent for the Ripplet Chassis, including parts for pedals, frame, and fittings. | ||
| View original record | To Rm C. to Ev File 1010 Rm/HH 4/9.4.40. Ripplet Chassis Pedals Sec 7100 Frame and Fittings Sec 7000 Stop Lamp Switch & Reverse Lamp Switch Sec 8230 Further to our memo Ev/HH 3/JH 29.3.40, please… | ||
| scan0126 | The issue of blueprints for the Rippletto Chassis frame and fittings. | ||
| View original record | To Rm C. to EY File 1010 1022 Rm/HH2 /11.4.40. Rippletto Chassis. Frame and Fittings Sec 7000 2nd Crossmember to PL 119. Please receive herewith 3 blueprints of each of the following:- RF 753 Frame… | ||
| scan0127 | Blueprints for the Rippletto Chassis frame and fittings. | ||
| View original record | To Rm Clutch-Div (struck through) File Clm 1010 Rm/HH2 /11.4.40. Rippletto Chassis. Frame and Fittings Sec 7000 2nd Crossmember to PL 119. Please receive herewith 3 blueprints of each of the… | ||
| scan0128 | New parts and instructions for the Ripplet's Frame & Fittings, Section 7000. | ||
| View original record | File 1010 & 1022 To. Rm C. EV Rm/HH.1/ 12. 4. 40 RIPPLET Section 7000. Frame & Fittings. In accordance with PL. 93. Please receive herewith 2 blue prints of the following new details, with 1 extra… | ||
| scan0129 | New details for the 'Ripplet' Section 7000, Frame & Fittings, including a parts list. | ||
| View original record | 1010 To. Rm c. EV File Clm Rm/HH.1/ 12. 4. 40 RIPPLET Section 7000. Frame & Fittings. In accordance with PL. 93. Please receive herewith 2 blue prints of the following new details, with 1 extra copy… | ||
| scan0130 | New parts and distributing blueprints for Section 7000, Frame & Fittings. | ||
| View original record | To. Rm c. EV Rowl/Chan 1010 File Chm Rm/HH.1/ 12. 4. 40 RIPPLET Section 7000. Frame & Fittings. In accordance with PL. 93. Please receive herewith 2 blue prints of the following new details, with 1… | ||
| scan0131 | Instructions for a modified front engine mounting on a Ripplet Chassis, detailing new drawings and replacement parts. | ||
| View original record | File 1010 1127 To. Rm O. Ev. Rm/HH.2/ 13. 4. 40 Ripplet Chassis Sec: 7000. Frame & Fittings ECD. 1491 Modified Front Engine Mounting. Please receive herewith blueprints of the following new drawings… | ||
| scan0132 | Instructions concerning the spare wheel carrier and frame fittings for the LH. Senior Range. | ||
| View original record | To Rm C.c. to Ev File 1010 & 1013 LH. Senior Range. Spare Wheel Carrier - Sec 7430. Frame and Fittings - Sec 7000. In accordance with PL 101. With reference to the above, will you kindly note that the… | ||
| scan0133 | List of alterations and additions to the Frame & Fittings and Rear Springs & Fittings sections. | ||
| View original record | 10 K.M. File (139 RF) 1010 10-4-40 SHEET 1. FRAME & FITTINGS - SEC. 7001 REAR SPRINGS & FITTINGS - SEC. 7030. FB. 5240 LOP. Sht 2 & 3 FRAME MAKERS ASSEMBLY } SEC. 7000. RF. 216. LOP Sht 2, 3 & 5 FRAME… | ||
| scan0134 | Continuation sheet listing deleted and added parts for a front engine mounting assembly. | ||
| View original record | 139/RF CONTD SHT 2 'C' RF. 216 SHT 3:- THE FOLLOWING PARTS WHICH MADE UP "FRONT ENGINE MOUNTING", DELETED:- FB 5052 PLATE FOR NOSE BONDING - 1 OFF FB.4152 NOSE BEARING - 2 OFF. RUBBER FB.6051 NOSE… | ||
| scan0135 | Change note regarding the addition of a 'Front Sheet Metal Member' and updates to engine mounting components. | ||
| View original record | 139 CONTD Sheet 3 EF FB. 5240 SHT 2.:- ADDED UNDR 'FRONT SHEET METAL MEMBER' RF. 311. BRACKET- ENGINE MOUNTING. REASON. TO BRING LOP^P UP TO DATE TO SUIT A. PEDALS TO RCD. 1500 B. GORDON-ARMSTRONG… | ||
| scan0136 | Chasing an assembly drawing for the Rippletto frame required by John Thompson Motor Pressings Ltd. | ||
| View original record | To Rm. from HPS/CP. HPS/CP.6/SW.19.4.40. Rippletto Frame. We have received correspondence from Messrs. John Thompson Motor Pressings Ltd., dated 17.4.40, for an assembly drawing for the Rippletto… | ||
| scan0137 | Parts lists and instructions for the fitment of Gordon Armstrong rear shock dampers. | ||
| View original record | 10 10. 4 1293 & 1365 Rm c.c. to Ev. Rm/HH 1/19.4.40. - All Cars. Rear Shock Damper Sec 7150. Frame and Fittings Sec 7000. Rear Springs and Fittings Sec 7030 (50" & 56" Springs) Rear Axle Sec 6120. ("… | ||
| scan0138 | Requesting a drawing to be made for a 'Rippletto Frame'. | ||
| View original record | 1010. HH. from Rm. Rm.5/JS.22.4.40. RIPPLETTO FRAME. Reference to HPS/CP6/SW.19.4.40, copy of which we attach. Please make the necessary drawing. Rm. | ||
| scan0139 | Parts list confirming a telephone conversation regarding the Front Sheet Metal Crossmember for an LH Silver Phantom chassis. | ||
| View original record | To Rm. C. to H.V. File 1010 d 1046. Rm/HH 1/23.4.40. LH Silver Phantom Frame and Fittings-Sec.7000. This is to confirm the telephone conversation of today's date with HPS/HH, with reference to the… | ||
| scan0140 | Modifications and parts list for a L.H. Silver Phantom frame and fittings. | ||
| View original record | FILE 1016 & 1046 To Rm. [Redacted] Rm/HH.15 JH.8.5.40. L.H. Silver Phantom. Frames and fittings Sec.7000. Modified large holes in Frame entailed by the following scheme - Exhaust system to ECD.1501,… | ||
| scan0141 | Instructions for modifying an existing Silver Wraith frame, specifying that only holes are to be changed, not the shape of the pressings. | ||
| View original record | Cont'd. Kindly instruct to suit. We understand that an existing Silver Wraith frame is being used for the above chassis. We would point out the above drawings consist of modified holes and do not… | ||
| scan0142 | Modified battery support for the Bentley V and Silver Phantom models, listing new and replaced parts. | ||
| View original record | To Rm C. to Hy. FILE Rm/CTS.2/JMS.11-5-40. Rm/HH 1/9.5.40. Bentley V. and Silver Phantom. Frame and Fittings-Sec.7000. Modified Battery Support to FCD.1539. Please receive herewith 3 blue prints of… | ||
| scan0143 | Confirming the issue of two blueprints for drilling the assembled frame of an L.H. Silver Phantom chassis. | ||
| View original record | COPY 1010 Rm/HH.2/23.5.40. The particulars given on this memo have not been issued. Rm. from Rm/HH C.E.V. L.H.SILVER PHANTOM. Frame & Fittings. Sec.7000. Please receive herewith 2 blueprints of the… | ||
| scan0144 | Article on unit frame and body construction, comparing monocoque designs to separate body and chassis frames. | ||
| View original record | 1010 To Rm/EAG. from Rm/RG. Rm/RG.2/ET.30.8.40. Re ARTICLE IN S.A.E. JOURNAL "UNIT FRAME & BODY" by L.W.SHERWIN. ------------------------- It would appear that the writer of the above article has been… | ||
| scan0145 | Comment on Mr. Sherwin's article regarding the use of light gauge material and frame stiffness targets for a satisfactory ride. | ||
| View original record | Rm/RG.2/ET.30.8.40 - 2 - One further comment on Mr. Sherwin's article: With the light gauge material we anticipate using, there will still be suffi-cient flexibility in the structure to minimise the… | ||
| scan0146 | The 'Myth' frame design, comparing conventional and monocoque construction options. | ||
| View original record | EV. from Rm. c. Rm/EAG. Frames 1010 Rm.3/ML.29.10.40. re MYTH FRAME DESIGN. We have been giving considerable thought to the way in which we should tackle the Myth frame. The three alternatives are :-… | ||
| scan0147 | Future car body design, comparing monocoque and separate frame constructions, and referencing American models. | ||
| View original record | - 2 - Cont'd. Having completed this design the body should then be reviewed and converted, as an entirely separate scheme, to the monocoque, with the necessary spring fixings, etc., etc., provided… | ||
| scan0148 | Technical note on improving the torsional rigidity of eight-cylinder frames using welded construction. | ||
| View original record | To Rm Copy for files Eight cylinder frames 1 copy typed for Frames 1010 Gen. 1 copy for RM/Chm It is felt that eight cylinder frames will be liable to hunt and shake when fitted with drop head coupé… | ||
| scan0149 | Improving frame rigidity with a new welded frame and a standardised cast aluminium dash for soft top cars. | ||
| View original record | Our latest frame when all welded should give a higher figure than 7-B-V, and we might expect at least 5000 lbs. ft. / degree. A cast aluminium dash would also give a noticeable improvement in overall… | ||
| scan0150 | Memo discussing and comparing fan drive ratios for various engines and competitor vehicles. | ||
| View original record | To Rm Copy for Files Fan drive Ratios 1 copy typed for Fawssett & for Chn. On B-V the ratio is 0.8, and on cast iron engines 1.1. This latter figure is identical with the 1938 Buick, which we copied.… | ||
| scan0151 | Torsional rigidity and front-end shake of eight-cylinder frames, proposing solutions like all-welded construction. | ||
| View original record | To Rm. EIGHT CYLINDER FRAMES. ------------------- It is felt that eight cylinder frames will be liable to front end shake when fitted with drop head coupe or desanca bodies. To overcome this, it will… | ||
| scan0152 | And comparing various fan drive ratios for different engines and models. | ||
| View original record | To Rm. FAN DRIVE RATIOS. ----------- On B-V the ratio is 0.8, and on cast iron engines 1.1. This latter figure is identical with the 1938 Buick, which we copied. A large fan rotating slowly is quiter… | ||
| scan0153 | Improvements to the torsional rigidity of eight-cylinder frames by reverting to a welded construction. | ||
| View original record | To Rm. EIGHT CYLINDER FRAMES. -------------------- It is felt that eight cylinder frames will be liable to front end shake when fitted with drop head coupe or desanca bodies. To overcome this, it will… | ||
| scan0154 | Design scheme for front bumpers, fog lamp brackets, and the associated requirement for side jacking. | ||
| View original record | 1010 To Rm. from EV/JD. Copy to Ev. Rm/MH. Rm/EAG. EV/JD.1/14.12.40. FRAMES - MYTH. We attach to Rm/MH's copy the original of PL.435 Front Bumper and Fog Lamp Brackets. The above scheme has been… | ||
| scan0155 | Letter to a supplier requesting sets of clutch springs and discs. | ||
| View original record | 1/10 C. to Rm/Wym. Hm/GB.3/KC. 12th November, 1941. Messrs. Borg & Beck Ltd., Tachbrook Road, Leamington Spa, Warwickshire. For the attention of Mr. Shinkins. Dear Sirs, We would like you to supply 6… | ||
| scan0156 | Reporting a broken frame on a Fordson Van (HRA. 107) at 17,500 miles. | ||
| View original record | 1010 To Rm. from Rm/Wym/C.Lee. c. to Rm/Wym Rm/Wym/C.Lee.12/OH. Z. 7.12.42. Rm Fordson Van - HRA. 107 Attached is photograph showing broken Frame at 17,500 miles. Rm/Wym/C.Lee. C Lee | ||
| scan0157 | Close-up photograph of a vehicle's rear leaf spring suspension and spare tyre carrier. | ||
| View original record | DUNLOP MADE IN | ||
| scan0158 | Close-up photograph of vehicle undercarriage components, including part of the chassis and suspension. | ||
| View original record | ", | ||
| scan0159 | Chassis frame and front pan specifications and compatibility. | ||
| View original record | CONFIDENTIAL To. Wym. from Ev/JD. c.c. to. Rm. Ev. Ev/JD.8/GAB.22.12.43. EV/JD 8/GAB 22.12.43 1010 Chassis Frames With reference to memo. Wym.4/OH.20.12.43, we agree with all these frame and front pan… | ||
| scan0160 | The production of experimental chassis frames for the Silver Ripple model. | ||
| View original record | 1010 To: EM/Les. (Slack Lane) from Rm. Rm. 3/h. 8.2.44. We want some experimental chassis frames making which are almost identical with those which John Thompson produced in the past, but with reduced… | ||
| scan0161 | The production of 'Silver Ripple' frames, including tooling for post-war manufacturing. | ||
| View original record | Chassis 1010 To: EM/Les. from Rm. Rm.3/SW.26.2.44. SENIOR RANGE FRAMES. Herewith a drawing showing where the Silver Ripple frames differ from the B.V. We should like two of these frames making by John… | ||
| scan0162 | Production of 'Silver Ripple' frames and the need for associated tooling. | ||
| View original record | 1010 To: EH/Les. from Rm. Rm.3/SW.26.2.44. SENIOR RANGE FRAMES. Herewith a drawing showing where the Silver Ripple frames differ from the B.V. We should like two of these frames making by John… | ||
| scan0163 | Examination report on five chassis frames received from Shardlow, detailing their specifications and suitability. | ||
| View original record | 1010 To Rm. from Wym. Re: Chassis Frames from Shardlow No. off - 5. Wym/Clm. has examined the above frames and has given us the following particulars :- (1) 10' 10" Wheelbase bump chassis similar to… | ||
| scan0164 | Production of two Litra frames with John Thompson's, focusing on material thickness and component manufacturing. | ||
| View original record | 1010. Chassis To :- Rm. -S- EM/Les.1/JB.10.3.44. SILVER RIPPLE FRAMES. Re: Rm.3/SW.26.2.44. I have visited John Thompson's to discuss the two Litra frames requested in your memo. The situation at the… | ||
| scan0165 | Experimental frames from John Thompson's, their specifications and a proposal for modification. | ||
| View original record | TO:- MRK -2- From examination of our previous orders for experimental frames from John Thompson's, I find that we have received several frames similar to the standard B.V. frame, to our drawing… | ||
| scan0166 | Despatch of three prints for the FW.1827 Rationalised Front Pan. | ||
| View original record | Chassis To: Rm. from Rm/HH 1010 c. to Wym. c. to Em/Les Rm/HH.3/MA.24.3.44. [Signature: Rm] Senior Range Rationalised Front Pan In accordance with your request, we attach herewith three prints of… | ||
| scan0167 | Results of the fourth torsional stiffness test on a Hythe Frame. | ||
| View original record | To Em. from Rm/CR/JCC. c. to Ev. c. to Kym. c. to Ry/JS. c. to Ry/ML. c. to Ry/CM. c. to Ry/Cr. Car fix 1010 Ry/CR/JCC.3/ML. 28.3.44. Hythe Frame. A fourth torsional stiffness test has been carried… | ||
| scan0168 | Requesting technical drawings for a Bent Front Pan, crossmember, and other engine components. | ||
| View original record | To :- Rm/HH. C.c. Wym. C.c. Rm. 1010 (e) Chasis EM/Les.3/JB.29.3.44. BENT FRONT PAN. Thank you for your Rm/HH.3/MA.24.3.44, sending prints of the main front pan pressing FW.1827. I still require,… | ||
| scan0169 | Preliminary report on the merits and defects of an overhead camshaft design for a Bentley. | ||
| View original record | Sg. & Hs. C. to E. C. to By. C. to Da. V 207 Rm.15/MJ.28.10.36. OVERHEAD CAMSHAFT - BENTLEY. The potential basic merits of this design so far appear to be - (1) An overhead camshaft valve gear which… | ||
| scan0170 | Preliminary report on tests for an overhead camshaft conversion on a 4.1/4 Litre Bentley engine. | ||
| View original record | OVERHEAD CAMSHAFT CONVERSION ON 4.1/4 LITRE BENTLEY. We give herewith a preliminary report on the tests carried out so far on the above converted engine. At the time of this report, the tests had been… | ||
| scan0171 | Investigation into engine noise, focusing on tappets and the chain and tensioner. | ||
| View original record | -2- registered by an electric bulb. The variation in reading measured was never more than .001. (5) Noise. The tappets were set at .002 clearance with engine cold, to give a consistent clearance of… | ||
| scan0172 | Graph of ignition timing curves for a 4 1/4 Litre Bentley O.H.C. engine, comparing standard and converted configurations. | ||
| View original record | IGNITION. 4 1/4 LITRE BENTLEY O.H.C. (CONVERTED UNIT). S.8. UNIT Nº B.23. ① STD. 4 1/4 LITRE ENGINE (6·5:1 C/R.). ⓐ IDEAL LINE (MIN. ADV. FOR MAX. POWER). ⓑ LINE TO CUT OUT DETONATION. Associated with… | ||
| scan0173 | Performance graph comparing a standard 4¼ Litre Bentley engine with an O.H.C. conversion and altered timings. | ||
| View original record | 4¼ LITRE BENTLEY O.H.C. S.O. (CONVERTED UNIT) UNIT N° B.23. (1) STD 4¼ LITRE ENGINE (6.5:1 C/R) (2) O.H.C. CONVERSION (6.0:1 C.R.) (SPEC: RHC/WSC.1/LS. 17.10.36) TIMING { I.O. 6° B.T. E.O. 43° B.B. ,… | ||
| scan0174 | Low-speed rattle issue with an O.H. camshaft unit and proposed solutions. | ||
| View original record | E. from Rm. c. to Hs. c. to Ry. c. to Da. 8200 Rm2/R.7.12.36. O.H. CAMSHAFT UNIT. You will see from the attached report that when we have done all we can with chain tensioners, we are left with a low… | ||
| scan0175 | Test report on chain oscillation during the test bed development of an overhead camshaft conversion for a 4 1/4-litre Bentley engine. | ||
| View original record | E. from Rm/CTS. c. to Hs. c. to Hy. c. to Da. Rm/CTS.4/R.5.12.36. Overhead Camshaft Conversion on 4 1/4-litre Bentley. Further Test Bed Development following on the report Rm/CTS1/MJ.27.10.36. The… | ||
| scan0176 | Series of tests to diagnose and resolve engine chain oscillation issues. | ||
| View original record | -2- but not sufficient to overcome the tensioner, although oscillating to the fullest extent on the driving side. (2) 1900-2300 R.P.M. This is the same period as mentioned in test No.1., but is now… | ||
| scan0177 | Series of engine oscillation tests with varying parameters. | ||
| View original record | -3- 1200 R.P.M. cured by 17 lbs. period goes up to 1450 " " " 25 " " " " 1500 " " " 30 " " " " 1550 " " " 35 " " " " Then there is no further oscillation throughout the speed range with a maintained… | ||
| scan0178 | Engine tests investigating chain rattle, oscillation, and cylinder head water leaks. | ||
| View original record | Test No.10. Second tensioner fitted to driving side of chain; otherwise as test No.9. Result. A slight rattle can be heard at 1000 R.P.M., but above this speed, although occasional vibrations can be… | ||
| scan0179 | Cost comparison between a 'Corrujoint' gasket and a standard Copper and Asbestos gasket for a 4.5-litre Bentley. | ||
| View original record | -5- Rm/CTS.4/R.5.12.36. With reference to the "Corrujoint" gasket, we understand that the cost is considerably higher than a similar gasket in Copper and asbestos; especially the 3-ply "Sandwich" type… | ||
| scan0180 | Requesting a sheet-metal casing for a Bentley O.H.C. engine's cam balancer during road testing. | ||
| View original record | To HPS. from Rm/CTS. r 207. Rm/CTS.1/AP.29.12.36. O.H.C. BENTLEY. We are at present running the cam balancer recently adapted from a standard Bentley, on the above engine. The results shew straight… | ||
| scan0181 | The development and testing of an overhead camshaft unit, detailing issues and proposed modifications. | ||
| View original record | CRS please return OK CJHall File 207 MS. from Rm. MS. C. to E. C. to Fy. C. to Dd. OVERHEAD CAMSHAFT UNIT. The attached report covers the recent work carried out on the overhead camshaft unit. As we… | ||
| scan0182 | Test bench summary on the experimental overhead camshaft conversion for the 4¼-Litre Bentley, focusing on chain drive oscillation. | ||
| View original record | To E. from Rm./CTS. c. to Sg. c. to Hs. c. to By. c. to Da. Rm/CTS.11/R.28.1.37. 4¼-Litre Bentley - Experimental Development. Overhead Camshaft Conversion. We give herewith a summary of the test bench… | ||
| scan0183 | Engine oscillation tests using a cam-balancer, camshaft flywheel, and tensioners, with a comparison of valve spring loads. | ||
| View original record | -2- (1) Cam-balancer. Camshaft Flywheel. One tensioner (Slack Side) Result. 1100 R.P.M. - slight oscillation. 1600 " 2300 " just overcomes tensioner. Bad oscillation on driving side (tensioner… | ||
| scan0184 | Valve spring loads, performance, noise, and exhaust valve expansion. | ||
| View original record | -2- VALVE SPRING LOADS. O.H.C. Limit. Valve Closed. Valve Open. RS.208 Inner } Inlet. 25 lbs 58.2 lbs. RS.210 Outer } 57 " 83.9 " Total 82 " 142.1 " R.S. 209 Inner } 20.75 lbs. 41.5 lbs. R.S. 211… | ||
| scan0185 | Analysis of engine valve expansion and temperature differences between sodium-cooled and non-sodium valves. | ||
| View original record | -4- The engine is then run at 4000 R.P.M. full throttle, with the micrometer maintaining a consistent contact with the top valve spring washer every time the valve closes. This indicates the time at… | ||
| scan0186 | Gasket water leaks on the Phantom III and proposals for a new gasket and cam balance/flywheel redesign. | ||
| View original record | -5- (b) Joint Face. In the previous report, we stated that the 'Corrujoint' gasket only partially cures the water leaks. Experience on Phantom III. in production is proving that the 'Corrujoint' can… | ||
| scan0187 | Weight comparison of components between a standard 4¼-litre Bentley engine and an O.H.C. converted engine. | ||
| View original record | ENGINE WEIGHT. COMPARISON BETWEEN THE PRODUCTION 4¼-LITRE BENTLEY ENGINE AND THE OVERHEAD CAMSHAFT CONVERTED ENGINE. PART STANDARD ENGINE WEIGHT IN LBS. PART O.H.C. CONVERSION. WEIGHT IN LBS. Standard… | ||
| scan0188 | Graph showing exhaust valve contraction over time for a 4 1/4 Litre Bentley (O.H.C) engine, comparing different valve configurations. | ||
| View original record | UNIT N° B.23 S 18 4 1/4 LITRE BENTLEY (O.H.C) EXH. VALVE TEMPS. AND EXPANSION. COMP. RATIO 6.5 : 1 ETHYL" "PETROL ① R.S. 203 EXHAUST VALVE (SODIUM FILLED) N° 5 CYL ② AS ① WITH SODIUM REMOVED ③ R.S.… | ||
| scan0189 | Letter to a supplier regarding the testing and ordering of tensioners for an experimental department. | ||
| View original record | 8 O H C (Experimental Dept.) Copy sent to Roy/CGS Rm/CTS11/M 19th February, 1937. J. Weller, M.I.A.E. Old Vine Cottage, West Horsley, SURREY. Dear Sir, In answer to your letter of the 18th instant,… | ||
| scan0190 | Development of an Overhead Camshaft Unit for a Bentley and requesting a testing timeline. | ||
| View original record | 100H. S/W To Rm. from Sg. Copy to Hs.E.Bl. Depy Overhead Camshaft Unit - Bentley. Sg11/E3.2.37 Replying to Rm21/R.29.1.37 I discussed this with Hs. and the recommendations made are agreed. I hope you… | ||
| scan0191 | Proposing a test on an O.H.C. Bentley engine to compare a new exhaust valve against the existing sodium-cooled valves. | ||
| View original record | 1004 To E. from Rm/CTS. c. By. Rm/CTS.2/AP.10.3.37. O.H.C. BENTLEY. We wish to carry out a test using an exhaust valve similar to that used on the present standard Bentley. We doubt whether we are… | ||
| scan0192 | Instruction to prepare a Delco-Remy governor with a specified advance curve for a B-23 O.H.C. Engine. | ||
| View original record | 1004 To Rm/Wst. Rm/Swdl.5/JH.10.4.37. B-23- O.H.C. Engine. Will you please instruct for a Delco-Remy governor to be prepared with the following advance curve for the above unit. Engine R.P.M. Degrees… | ||
| scan0193 | Inquiring about the location of an alternative overhead camshaft for an engine. | ||
| View original record | 1004 Rm/Swdl. from Rm. Rm16/R.18.6.37. OVERHEAD CAMSHAFT ENGINE. Where has the alternative overhead camshaft got for this engine ? Rm. | ||
| scan0194 | Comparison of lap times for two cars with different tyre setups at Brooklands. | ||
| View original record | AT BROOKLANDS 6.8.37. Handwritten: 10 H.P, 1004 | | Standard Wheels & Tyres 5.50 x 18. | Standard front 6 x 19 Dunlop Racing rear. | Standard front 6 x 19 rear (cut-out open). | Standard front 6.50 x… | ||
| scan0195 | Research into an Overhead Camshaft Engine, comparing it with side-valve and push-rod designs. | ||
| View original record | SECRET. By. from Rm. c. Hs. c. Da. c. MX. c. REC. 1004 Hml/R.2.8.37. O.H. CAMSHAFT ENGINE. About 18 months ago we began to suspect that the in line push rod head, as fitted to all our production car… | ||
| scan0196 | Report discussing the pros and cons of an overhead camshaft engine project, including a Q&A on power output. | ||
| View original record | -2- Hml/R.2.8.37. be fundamentally lighter and cheaper to produce, might be expected to give better combustion control and, within the speed ranges possible on a six-cylinder engine, seems to have a… | ||
| scan0197 | Question and answer sheet regarding the performance, cost, and reliability of an O.H.V. engine. | ||
| View original record | -3- QUESTION. (3) Can any O.H.V. engine be made as quiet as a push rod engine? (4) How does it compare for detonation with standard? (5) Does the increased power output produce increased roughness,… | ||
| scan0198 | Question and answer document regarding engine performance, weight, development status, and future project planning. | ||
| View original record | -4- QUESTION. (8) Is the drive satisfactory ? (9) What is the weight relative to standard ? (10) Is the idling and slow running up to standard ? ANSWER. Being similar to many drives giving… | ||
| scan0199 | Graph comparing the power output of a standard 4¼ Litre Bentley engine with an Overhead Camshaft (O.H.C.) conversion unit. | ||
| View original record | UNIT No. 23 4¼ LITRE BENTLEY POWER-OUTPUT. OVERHEAD CAMSHAFT CONVERSION UNIT. S.20 ① O-H-C. ENGINE. 6.5:1. COMP. RATIO. OPEN EXHAUST. (1a) As 1 BUT WITH STD. EXH. SILENCER. ② STANDARD 4¼ LITRE ENGINE… | ||
| scan0200 | Internal memorandum regarding a request for a revised camshaft drawing for the Bentley O.H.C. unit. | ||
| View original record | Handwritten: Sides Please deal with this To Rm. from HPS/WSC. Crossed out: to Rm/Swdl. Handwritten: 1004 HPS/WSC.2/VS.7.8.37. RE O.H.C. BENTLEY UNIT. Referring to your conversation with HPS. re… | ||
| scan0201 | Requesting the production of two sets of smaller exhaust valves and seats for an O.H.C. Bentley unit for testing. | ||
| View original record | X To HPS. From Rm/Ed. 1004 Rm/Ed.11/MH.9.9.37. O.H.C. BENTLEY. We are anxious to reduce the size of the exhaust valve Rs.203, on the above unit, trying sizes 1.400" dia. and 1.500" dia. We should be… | ||
| scan0202 | Failure of an inlet valve rocker from a B.23 O.H.C. unit after extensive testing. | ||
| View original record | To [s]By.[/s] from HPS/RH c. Rm. c. [s]Rm/Gwdl.[/s] c. [s]HPS.[/s] 1004 HPS/RH.1/EP.8.10.37. B.23 O.H.C. UNIT. FAILURE OF VALVE ROCKER. [Signature] Herewith photograph of No.2 Inlet Valve Rocker… | ||
| scan0203 | Photograph and test details of a fractured O.H.C. Unit Rocker. | ||
| View original record | B.23 O.H.C. Unit. Rocker R.S.122 S/ZN. No.2 inlet. Total running time :- 176 Hrs. including 25¾ Hrs. at full throttle, and 4275 miles in 56 BN. | ||
| scan0204 | Use of an overhead camshaft engine for investigation work applicable to the Phoenix project. | ||
| View original record | Hs. from Rm. c. By. 1004 Rm10/R.19.10.37. OVERHEAD CAMSHAFT ENGINE. As discussed with you the other day, the overhead camshaft is the only engine having a six-port exhaust system, and we are at… | ||
| scan0205 | Request to manufacture twelve exhaust valve guides for an O.H.C. unit B.23. | ||
| View original record | To HPS. from Rm/Ed. c. Rm/Swdl. 1004 Rm/Ed.1/MH.21.10.37. VALVE GUIDES FOR O.H.C. UNIT. B.23. When fitting the smaller valves and seats instructed in Rm/Ed.11/MH. 9.9.37, it is thought that new guides… | ||
| scan0206 | Instructing to stop work on the overhead camshaft unit. | ||
| View original record | HPS. from Rm. e. Rm/Swdl. c. Rm/Ed. 1004 Rm1/R.22.10.37. OVERHEAD CAMSHAFT UNIT. Please note that all work is to be stopped on this unit, except in so far as may be necessary to keep it running when… | ||
| scan0207 | Instruction to make two exhaust manifolds for tests to be carried out on the O.H.C. Bentley unit. | ||
| View original record | 1004 To HPS. Rm/Lee.9/JH.6.1.38. No.2. Bed. Will you please instruct T.Elston to make two exhaust manifolds to verbal instructions given by me. These manifolds are for tests to be carried out on the… | ||
| scan0208 | Experimental department report summarizing development work carried out on an OHC Conversion Unit. | ||
| View original record | Detonation appears slightly worse than B.II, & a modified design of combustion chamber is suggested. R.R. 306. 5T. 50966. 6/11/37. C.E. EXPERIMENTAL DEPARTMENT REPORT REFERENCE: 1004. FILE THIS… | ||
| scan0209 | Summary of development and performance testing on an O.H.C. conversion unit. | ||
| View original record | O.H.C Conversion Unit. Test having been discontinued on the above unit, we give herewith, a summary of the development up to date, as a useful starting point in the event of further work on this unit.… | ||
| scan0210 | Report discussing engine detonation, alternative head designs, and a comparative table of valve gear specifications. | ||
| View original record | -2- experienced on our cast-iron heads, that the noise is not so metallic. Curves taken on the bed however, shown in Fig. S8, seem to show that the detonation persists up to 1850 RPM as compared with… | ||
| scan0211 | Valve gear development, detailing issues with valve springs, rockers, and camshaft chain drives, including a table of seat loads and stresses. | ||
| View original record | -3- The high accelerations involved, and the high lifts necessitated very powerful double valve springs, bounce setting in at about 4000 RPM if single springs only were employed. A number of spring… | ||
| scan0212 | Test report detailing investigations into engine vibration, chain oscillation, and the effects of tensioners, camshafts, and flywheels. | ||
| View original record | -4- (1) The removal of the fabroil block and chain tensioner made the amplitude of vibration so great that the engine could not be run over 2000 RPM for fear of breaking the chain. (2) Replacing the… | ||
| scan0213 | Report page detailing tests on sodium-cooled valves, cylinder head joint issues, and engine expansion characteristics. | ||
| View original record | -5- rometer maintaining a consistent contact with the top spring washer every time the valve closes. This indicates the time at which the maximum expansion is reached. The throttle is then closed to… | ||
| scan0214 | Engine performance analysis, including issues with noise, detonation, and head design. | ||
| View original record | -6- Heat Flow to Coolant. A test was run over the speed range using a standard Bentley 4¼ radiator, to determine the heat to the cooling water. This came out at an approximately constant figure of 75%… | ||
| scan0215 | Page discussing the effects of reduced loading on power, cam loads, and chain drive. | ||
| View original record | -7- seriously effecting the power, and at the same time giving very beneficial effects in the way of reduced seat and cam loads. It might also be anticipated that the reduced loading would help the… | ||
| scan0216 | Graph of ignition timing characteristics for a 4 1/2 Litre Bentley engine in both standard and O.H.C. converted forms. | ||
| View original record | IGNITION. 4 1/2 LITRE BENTLEY O.H.C. S.B UNIT N° B.23. (CONVERTED UNIT) ① STD. 4 1/4 LITRE ENGINE (6·5:1 C/R.) a IDEAL LINE (MIN. ADV. FOR MAX POWER) b LINE TO CUT OUT DETONATION. } SHELL N° 1 PETROL.… | ||
| scan0217 | Power-output graph for a 4¼ Litre Bentley, comparing an Overhead Camshaft conversion unit to the standard engine. | ||
| View original record | UNIT No: 23. 4¼ LITRE BENTLEY. POWER- OUTPUT. OVERHEAD CAMSHAFT CONVERSION UNIT. S.20. ① O-H-C. ENGINE. 6·5 : 1 COMP: RATIO OPEN EXHAUST ①a AS ① BUT WITH STD: EXH: SILENCER. ② STANDARD 4¼ LITRE ENGINE… | ||
| scan0218 | Requesting technical details on Morris or Standard camshafts for small cars. | ||
| View original record | To Rm/Wym. from Rm. Copy to Rm/CTS. Rm/TAS. 1004 Rm.S/LT.2.3.41. SMALL CAR CAMSHAFTS. Will you please get the following particulars of either the Morris or the Standard camshaft, whichever is the best… | ||
| scan0219 | Technical data sheet comparing camshaft performance metrics for various engine units. | ||
| View original record | To Rm. from Rm/TAS. Copy to Jnr. Rm/CTS. Camshaft file 1004 GENERAL INFORMATION ON CAMSHAFTS A - MAX. ACCELERATION AND DECELERATION. in feet/sec² @ 1000 R.P.M. | Engine Unit | Rocker Ratio | Max. + u2… | ||
| scan0220 | Technical analysis of cam loading, valve gear weights, and noise on various engine models. | ||
| View original record | Rm/TAS.6/ET.26.5.41. 2. A. If the acceleration figures illustrated are to be thought of in terms of maximum loading of the cam, they do not mean very much without an accurate analysis of the valve… | ||