Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Potential noise issue with the 25HP Bensport synchro-mesh gearbox when engaging first gear. | ||
| View original record | HS. FROM DA. X 228. DAL/M/29.2.32. X.4553. Copy to E. BENSPORT GEARBOX. On the 25HP. synchro mesh box, in coming into 1st. speed one picks up the reverse wheel. We understand that there is a slight… | ||
| scan0002 | Difficulty of engaging first gear in a 'Bensport' synchro-mesh gearbox and a subsequent recommendation for sports cars. | ||
| View original record | SECRET. X 228. To Da. E. From Hs./Gry. Hs/Gry.1/WJ.5.3.32. c. to R. Sg. Wor. By. 'BENSPORT' GEARBOX. B2 Replying to Da.1/M29.2.32. We have again tried out the difficulty experienced with changing into… | ||
| scan0003 | Suggestion to modify the Bensport Gearbox to prevent the reverse gear from balking the change down to first gear. | ||
| View original record | RECEIVED X 228. from E. c.c. Wor. Hs. E.6/HP.8.3.32. Bensport Gearbox. Hs/GRYL/MJ.5.3.32 arises out of my suggestion to Da. and Hdy that on the Bensport we ought to arrange the reverse gear if… | ||
| scan0004 | Modifications for a left-handed car, including a new gearbox and chassis. | ||
| View original record | DA/ FROM R. (At Le Canadel.) STRICTLY SECRET. X228 R1/M12.4.32. Sent from WW. 14.3.32. C. to SG. WOR. C. to E. By. HS. JAPAN 3. X.5770 X.4553 Both Sales and Works appear to wish for J. 3. to be… | ||
| scan0005 | Technical memorandum comparing gearbox designs, gear ratios, and stresses for the B.S. and Peregrine models. | ||
| View original record | X224 R. FROM DA/HDY. DA/HDY1/M15.4.32. C. to SG. E. HS. BY. B.S. GEARBOX. X.4553 In connection with this gearbox we send herewith prints of N.schemes 3459/60/65. Having no servo drive for B. S. and… | ||
| scan0006 | Design analysis of a synchromesh gearbox with direct control, discussing striking forks, interlock mechanisms, and reverse stops. | ||
| View original record | (2) SYNCHRO MESH CONTROLLED DIRECT OR WITH ROCKING SHAFT. The use of central change enables the top gear fork to be short and stiff, and consequently it appears to us that direct operation is not… | ||
| scan0007 | Note regarding enclosed drawings of a Peregrine gearbox and an L.H. Phantom change gear tower. | ||
| View original record | (3) We are enclosing drawings of the Peregrine gearbox, and of the change gear tower of the L.H. Phantom. DA/HDY. | ||
| scan0008 | Design of the reverse pinion, gear ratios, and related components for various gearboxes. | ||
| View original record | X228 DA/HDY. E. } FROM R. HS. BY. } (At Le Canadel.) R3/M2.5.32. Sent from W.W. 5.5.32. C. to SG. WOR. GEARBOXES - ALL SIZES - X.7310 ALSO PEREGRINE & BENSPORT. X.5310 X.4553 C.4027. REVERSE PINION.… | ||
| scan0009 | Design proposal for a Bensport & Peregrine gearbox reverse shaft to economise on length and cost. | ||
| View original record | X 228. E. ) FROM R. DA. ) (At Le Canadel.) HS. ) C. to SG. WOR. BY. BENSPORT & PEREGRINE GEARBOX REVERSE. For economy of length and cost we could make the shaft upon which the reverse revolves thus -… | ||
| scan0010 | Reverse pinion and jaw clutch design, including a diagram of a proposed hub and sleeve. | ||
| View original record | E. DA. )FROM R. HS )(At LE Canadel.) X428 R6/M115.32. Rec'd and despatched from WW. 20.5.32. X. 7310 X. 5310 X. 4553 C. to SG. WOR. BY. BENSPORT & OTHER GEARBOXES. Reverse pinions I agree can be of… | ||
| scan0011 | Interchangeability of the Bensport and Peregrine gearboxes and the perception of central gear changes. | ||
| View original record | Y224. To Sg. from E. E.1/HP.11.6.32. c. Wer. Hs. re Bensport Gearbox. Further to our memo E.8/HP.3.6.32, a car is no longer considered American if it is fitted with a central gear change. Prejudice in… | ||
| scan0012 | Confirming the decision for a right-hand gear change on the Peregrine model over a central change. | ||
| View original record | H3 X 228... X40n. To E. from Sg. ✓ Copy to Mr. He. re Bensport Gearbox. Sg5/E14.6.32 Referring to E.1/HP.11.6.32 some months ago, when we discussed Bensport and Peregrine we were definitely of the… | ||
| scan0013 | Modifications and specifications for the Bensport and Peregrine gearbox. | ||
| View original record | X 228. BY. FROM HDY. HDY1/M8.7.32. C. to SG. WOR. HS. GEARBOX X.4553 C. to E. DA. RHC. BENSPORT & PEREGRINE. X.4027 We send herewith N. sch. 3490 which shews most of the Bensport gearbox. The… | ||
| scan0014 | Series of numbered points detailing adjustments and manufacturing methods for gearbox components. | ||
| View original record | (2) (3) The outer races of the two roller bearings are secured by riveted pins and washers. (4) Adjustment is provided on the sliders for 1st and 2nd, and reverse, but none for top and 3rd. (5) The… | ||
| scan0015 | New gearbox and clutch arrangement, scheme 3526, and the steering column design. | ||
| View original record | X225 BY. FROM DA. DA/EV1/M24. 8.32. C. to SG. WOR. HS. E. BENSPORT. We send herewith N. sch. 3526 shewing the latest arrangement of gearbox and clutch etc, as preliminary set out. The gearbox and… | ||
| scan0016 | Letter to Mr. Wormald comparing the gearbox configurations of the Peregrine and Bensport models. | ||
| View original record | X 228 WOR. FROM R. RL/M27.8.32. C. to SG. HS. E. DA. BY. X.4027 X.4553 My dear Mr. Wormald, re. PEREGRINE & BENSPORT. The former we are treating with a slightly flexible extension behind the gearbox,… | ||
| scan0017 | Modifications to the Bensport Gearbox, including strengthened shafts and new gear ratios. | ||
| View original record | X 228 BY. FROM HDY. HDY1/M24.9.32. C. to SG. WOR. E. DA. HS. BENSPORT GEARBOX - SEPARATE CONSTRUCTION. We send herewith a print of N. scheme 3519. which shews the gears as modified to suit the box… | ||
| scan0018 | Technical memo discussing the design of the Bensport gearbox, focusing on its spigot-less alignment. | ||
| View original record | X228 BY. FROM HDY. HDY1/M1.10.32. C. to SG. MOR. E. DA. HS. BENSPORT GEARBOX. We send herewith N.schs 3519/20/21/22., which shew most of the Bensport gearbox. N.sch.3519 has not been appreciably… | ||
| scan0019 | Modifications and assembly procedure changes for the Bensport gearbox. | ||
| View original record | BY. FROM HDY. X228. HDY1/M8.10.32. C. to SG. WOR. E. C. to DA. HS. RHO. BENSPORT GEARBOX. We send herewith N.sch.3554. which shews minor modifications to this box resulting in the elimination of the… | ||
| scan0020 | Design and mechanics of the Bensport change gear tower and lever. | ||
| View original record | 228. BY. FROM HDY. HDY./1/M.28.10.32. C. to SG. WOR. HS. E. DA. BENSPORT - CHANGE GEAR TOWER AND LEVER. We send herewith N.sch.3556. which shews the above. The leverage of actuation of the synchro… | ||
| scan0021 | Design specifications and considerations for the Bensport gearbox. | ||
| View original record | BY. HS. FROM HDY. X.248 HDY1/M5.11.32. Copy to - DA. BENSPORT GEARBOX. We send herewith a print of N.sch.3558. which shews the mounting of the rear end of the box, and the drives for the servo, damper… | ||
| scan0022 | Progress of work on the Bensport gearbox and related parts. | ||
| View original record | COPY. γ 228. Sg. from DA. DA1/M10.11.32 BENSPORT GEARBOX Replying to SG2/D91132, since Mr. Hardy was moved from 'Camacha' to 'Elmstead', taking the gearbox and shock damper work with him, these two… | ||
| scan0023 | Progress and strategic importance of the Bensport Gearbox project. | ||
| View original record | Y 228. S/W. To Hs. from Sg. copy to Wor. copy to BY. Sg14/D11.11.32 Re: Bensport Gearbox Referring to Hs1/MJ8.11.32, I wrote to DA. as follows on the 9th:- " Referring to Hs1/MJ8.11.32, in view of R's… | ||
| scan0024 | Modification to the Bensport Gearbox to remedy an excessive overhang of the 2nd speed slider. | ||
| View original record | x 228. BY. FROM HDY. HDY2/M1 2.11.32. C. to SG. WOR. HS. E. DA. BENSPORT GEARBOX. OVERHANG OF 2nd. SPEED SLIDER. We thank you for BY4/G31132., in which you call attention to the excessive overhang of… | ||
| scan0025 | Technical memorandum regarding the design of the Bensport gearbox, third motion shaft, and servo. | ||
| View original record | 228. BY.1/G.14.11.32. DA. c. Hdy. c. Hs. c. Wom GRY BENSPORT GEARBOX. DA.1/M.10.11.32. Hdy.1/M.5.11.32. Hdy.5/M.12.11.32. We have this morning received the design for the hand brake lever. In regard… | ||
| scan0026 | Page discussing the speedometer drive and requirements with the A.T. Co. | ||
| View original record | - 2 - BY.1/G.14.11.32. information here that it is intended to be on that side. (3). In regard to the speedometer drive, we will take this matter up with the A.T. Co. and satisfy ourselves that our… | ||
| scan0027 | Strengthening of the 1st and 3rd motion shafts for the Bensport gearbox. | ||
| View original record | X 228. BY. FROM HDY. C. to SG. WOR. HS. E. DA. HDY1/M16.11.32. BENSPORT GEARBOX. STRENGTHENED 1st. & 3rd. MOTION SHAFTS. If the effect of the absence of radius on the fractured Phantom 3rd. motion… | ||
| scan0028 | Points from a telephone conversation regarding the Bensport Gearbox design. | ||
| View original record | BY/TWD c. BY/SS. c. Hs. c. Hdy. (WW) Y 228. BY.22/G.17.11.32. [Stamp] RECEIVED NOV 17 1932 [/Stamp] BENSPORT GEARBOX. ------------------- Hdy.(WW) was speaking to me on the telephone yesterday, and he… | ||
| scan0029 | Proposal affected by the method of staying the foot pedal shaft. | ||
| View original record | - 2 - BY.22/G.17.11.32. We pointed out that the method of staying the foot pedal shaft to the unit affected this proposal, and he agreed that he would put the matter up to DA. for a solution. BY. | ||
| scan0030 | Modifications to the fulcrum pin for the Bensport gearbox hand brake lever. | ||
| View original record | X228 BY. FROM HDY. HDY1/M22.11.32. C. to SG. WOR. E. HS. DA. BENSPORT GEARBOX - HAND BRAKE LEVER. N.sch. 3591. herewith shews slight modifications to the fulcrum pin for the hand brake lever. We wish… | ||
| scan0031 | Modifications to the Bensport gearbox, specifically the 3rd motion shaft and a new oil retaining disc. | ||
| View original record | X.228. BY. FROM HDY. C. to SG. WOR. HS. E. DA. HDY1/M29.11.32. BENSPORT GEARBOX. N. sch. 3595. herewith shews an increased radius on the 3rd. motion shaft at the rear of the centre bearing which… | ||
| scan0032 | Modifications to the actuating shafts of the Bensport gearbox. | ||
| View original record | X 228 BY. FROM HDY. HDY2/M29.11.32. C. to SG. WOR. HS. E. DA. BENSPORT GEARBOX. N.sch. 3596 herewith shews actuating shafts with the levers hydraulically pressed on instead of being brazed as… | ||
| scan0033 | Bensport gearbox, its suspension, adjustment, and oil retention scheme. | ||
| View original record | X228. BY. FROM HDY. C. to SG. WOR. HS. E. DA. BENSPORT GEARBOX. We sent N. sch. 3558. to Derby on 24.11.32. which shews the suspension of the gearbox arms for servo brackets at agreed increased radius… | ||
| scan0034 | Temporary scheme for a helical second speed gear for the Bensport model. | ||
| View original record | X228. BY. FROM HDY. HDY1/M29.12.32. C. to SG. WOR. HS. E. DA. RHC. BENSPORT - HELICAL SECOND SPEED. N.sch.3630. herewith shews a temporary scheme for a helical 2nd.speed arranged to suit the box as… | ||
| scan0035 | Clearance between engaging teeth on helical second-speed gears for various models. | ||
| View original record | HS. ) FROM HDY. X 228. BY. ) C. to SG. WOR. E. DA. HDY2/M14.1.33. X.4027 X.4553. HELICAL SECOND SPEED GEARS. CLEARANCE BETWEEN ENGAGING TEETH. We understand that the Expl. Dept. have asked for more… | ||
| scan0036 | Permanent scheme for a helical second-speed gear for the Bensport model. | ||
| View original record | X228 BY. FROM HDY. HDY1/M14.1.33. C. to SG. WOR. HS. E. DA. BENSPORT - HELICAL SECOND SPEED. We send herewith N.sch.3636. and 3637. which shews the permanent scheme of helical 2nd. speed for Bensport.… | ||
| scan0037 | Design alterations for the Bensport gearbox actuating shafts, proposing a new design. | ||
| View original record | X226. BY. FROM HDY. HDY1/M18.1.33. C. to SG. WOR. HS. E. DA. BENSPORT GEARBOX. ACTUATING SHAFTS. We note that the actuating shafts proposed by Derby and shewn by GB.212/3. do not follow our N. sch.… | ||
| scan0038 | Bensport gearbox and damper governor drive. | ||
| View original record | BY. FROM HDY. X 229. C. to SG. WOR. HS. E. DA. BENSPORT GEARBOX. DAMPER GOVERNOR DRIVE. We shew in N. sch. 3638. herewith the coupling between the servo drive shaft and the damper governor. The… | ||
| scan0039 | Suggestions for higher indirect gear ratios for the Bensport model. | ||
| View original record | HS/RM. } FROM HDY. X229 BY. } HDY1/M24.1.33. C. to SG. WOR. E. DA. BENSPORT GEAR RATIOS. As requested by HS/RM. we send suggestions - shewn on N. scn. 3658. herewith - for higher indirect gear ratios… | ||
| scan0040 | Suggested gear ratios for the Bensport gearbox. | ||
| View original record | HS. } FROM HDY. BY. } X 228. C. to SG. WOR. E. DA. HDY1/M25.1.33. BENSPORT GEAR RATIOS. If the gearbox ratios recently sent for the 20/25 box on the Bensport are considered to be what is wanted, we… | ||
| scan0041 | Higher gear ratios for a Bensport car and requesting an altered 3rd gear ratio. | ||
| View original record | 8228. BY. from Hs/Rm. Hs/Rm.3/KT.26.1.33. Further to our conversation on higher gear ratios for Bensport, you will have seen a note from Hdy. on the subject. We attach herewith the tracing showing his… | ||
| scan0042 | Bensport 25 HP gearbox and the incorporation of altered gear ratios. | ||
| View original record | Y 228. BY. from Hs/Rm. Hs/Rm.7/KT.30.1.33. BENSPORT GEARBOX. Now it is probable that Bensport will go into 'Press' with the 25 HP. gearbox, we should like to incorporate the whole of the altered gear… | ||
| scan0043 | Specification for building a 20/25 gearbox with altered ratios for Bensport. | ||
| View original record | X 228 RHC. from Hs/Gry. Hs/Gry.1/KT. 8.2.33. BENSPORT GEARBOX. We want to try a 20/25 gearbox with altered ratios for Bensport. Will you please build one up to the following specification:- Constant… | ||
| scan0044 | Confirming that the Drawing Office will issue details for a Bensport gearbox with an altered gear ratio. | ||
| View original record | X224- RHC. from Hs/Gry. Hs/Gry.1/KT.10.2.33. BENSPORT GEARBOX. Further to our Hs/Gry.1/KT.8.2.33. asking you to make a gearbox for Bensport with altered gear ratio, the D.O. have agreed to issue… | ||
| scan0045 | Modification to the gearbox for the Bensport model. | ||
| View original record | X228. BY. from Hs/Gry‡ Hs/Gry.12/KT.10.2.33. GEARBOX FOR BENSPORT. The scheme Hdy. has sent us for higher indirect gear ratio to N.sch.3658 has a sliding pinion 2nd. gear. We find we can obtain a… | ||
| scan0046 | Modifications to coupling teeth for the silent second speed gear. | ||
| View original record | X228. HS. } FROM HDY. BY. } HDYl/M23.2.33. C. to SG. WOR. E. DA. BENSPORT - SILENT SECOND SPEED. With reference to the 2nd. speed working out as reported in HS/RM1/KT21233., we understand that the… | ||
| scan0047 | Risks and progress of tests on the Bensport & 25 HP gearbox and other new components. | ||
| View original record | To Sg. From Hs. c. to Wor. Hs.6/MJ.28.2.33. Re. BENSPORT & 25 HP. GEARBOX. Replying to Sg.1/E.27.2.33. I realised, and I believe most of the others at the conference in Derby on January 12th.… | ||
| scan0048 | Trial of a new Bentley gear lever with a knob made of ebonite or bakelite to improve appearance and reduce rattle. | ||
| View original record | 1228. RHC. from Hs/Rm. Hs/Rm.5/KT.2.3.33. BENTLEY GEAR LEVER. We should like to try your gear lever to Ex.8727 with the knob turned ~~out~~ in ebonite or black bakelite for improved appearance and… | ||
| scan0049 | Alteration of gear ratios for a second Bentley Bensport model. | ||
| View original record | X728 To RHC. from Hs/Gry. Hs/Gry.10/KT.1.5.33. BENSPORT GEAR RATIOS. A road test of the second Bentley has shown that the 3rd. gear is too high. In order to get a ratio between that of this car and… | ||
| scan0050 | Revised design for the Bentley change speed knob, proposing a change from steel to bakelite. | ||
| View original record | X228 To By. from Hs/Rm. HS/Rm.l/KT.2.5.33. CHANGE SPEED KNOB FOR THE BENTLEY. When you issue details of the change speed knob for the Bentley, we should like you to consider the scheme to Ex.8727,… | ||
| scan0051 | Confirming satisfactory tests of Bensport gear ratios and instructing for production. | ||
| View original record | X228 To By. from Hs/Gry. c. to Hdy. Hs/Gry.16/KT.3.5.33. BENSPORT GEAR RATIOS. We have now tried two cars with the high indirect gear ratios to N.Sch.3658, but using a 49/37 helical 2nd. speed in… | ||
| scan0052 | Decision to adopt a new gearbox design for the 3.5 Litre Bentley and transfer old parts to the 20/25 model. | ||
| View original record | BY/TWD c. Hs. c. E. c. DA X228. BY.2/G.3.5.33. 3½ LITRE BENTLEY - GEARBOX. It has been decided by the Experimental Dept. that they will adopt for production the gearbox, which we detailed from… | ||
| scan0053 | Fitment of a Marles Weller steering gear and requesting clarification on compatibility. | ||
| View original record | RHC. From Hs/Rn. X228. Hs/Rn.3/KT.3.5.33. You will remember that on Sg's car we fitted a Marles Weller steering gear. We want to have one of these gears available for the Bentley as we are bound to… | ||
| scan0054 | Confirming the shortening of the change speed lever by 1 inch for the 3 1/2 litre Bentley Car. | ||
| View original record | W/S. To C. from E. c. Wor. Hs. FN. By. Mx. (text has been struck through) Rm X 228 (handwritten) E.1/HP.10.5.33. Re. 3½ litre Bentley Car. Referring to Mx.1/T.1.5.33, we are shortening the change… | ||
| scan0055 | Modification to the Bensport Change Speed Lever for testing purposes. | ||
| View original record | X228. To RHC. from E./JNR. c. Dy. c. Hs/Rm. Rm E/JNR.4/HP.10.5.33. re Bensport Change Speed Lever. Will you please make a change speed lever 1" shorter than GB.459 for us to try on No.3. car. This we… | ||
| scan0056 | Suggesting modifications to a sliding handle reverse actuation for a gear lever. | ||
| View original record | X228 B324 To HDY. from E. c. Wor. Hs. Hy. Da. RHC. E.3/HP.29.6.33. Sliding Handle Reverse Actuation for Gear Lever. Replying to your HDY.1/HP.29.6.33, N. Sch. 3760 appears to me to be preferable to… | ||
| scan0057 | Technical memo discussing the design of a sliding handle for gear lever reverse actuation, comparing different schemes. | ||
| View original record | To H. from HDY. c. for. Hs. By. Ba. RMC. GRY see me X228 HDY.1/HP.29.6.33. Sliding Handle Reverse. Actuation for Gear Lever. --------------------- With reference to the criticisms of our design N.… | ||
| scan0058 | The sliding handle reverse actuation for a gear lever. | ||
| View original record | X228 To BY. from HDY. HDY.1/HP.30.6.33. c. For W. Hs. Ba. NHU. Sliding Handle Reverse Actuation for Gear Lever. ------------------------------------ Herewith N. Sch. 3670 in accordance with… | ||
| scan0059 | Modifications to the sliding handle actuation for a gear lever to reduce construction costs. | ||
| View original record | X226 To BY. from HDY. HDY.1/HP.15.7.33. c. Wor. M. Hs. Da. R.M.C. Parker out P3 WST Sliding Handle actuation for Gear Lever - Bensport. We have made further modifications to N. Sch.3670 to cheapen the… | ||
| scan0060 | Analysis of a gear lever handle vibration problem on a Bentley and proposed modifications to cure it. | ||
| View original record | G.W.H. Will this lever be fitted to your car. To Hs. from E. c. Wor. C. By. Mr. EP. Hdy. x22 E.3/HP.14.9.33. re Gear Lever Handle - Bentley. From an analysis of the results obtained by GWH with the… | ||
| scan0061 | Vibrations and noise in a gear lever, with a request for tests on Bentley and 20/25 models. | ||
| View original record | - 2 - E.3/HP.14.9.33. was at the bottom of the long sliding rod, and although we should expect a similar vibration from this lever it would be modulated by the longitudinal elasticity of the sliding… | ||
| scan0062 | Rubber insulated gearbox rear support, referencing drawing N. Sch. 3829. | ||
| View original record | K228 To By. from Hdy. c. Wer. E. Hs. Dr. NHC. Hdy.1/HP.25.9.33. Gearbox Rear Support. N. Sch. 3829 herewith shows a rubber insulated rear support for this gearbox. Hdy. | ||
| scan0063 | Confirming a request to fix a rattling gear lever knob before production. | ||
| View original record | X-28 To RHC. from Hs/Gry. Hs/Gry.1/KT.3.10.33. GEAR LEVER RATTLES - 2.B.IV. This is to confirm our asking you to make the knob a good fit on the lever in this car. Hdy. has suggested our trying this… | ||
| scan0064 | Proposed change to the Bentley Change Speed Lever Handle manufacturing process. | ||
| View original record | [Handwritten] GRV x 2-8v see me HS [Typed] To-BY. from E. c. Wor. Hs. Sft. Sft/JRB. E.2/HP.19.10.33. Bentley Change Speed Lever Handle. The abovementioned piece, as you are aware, consists of a… | ||
| scan0065 | Revised Bentley gear lever knob design without a metal insert, noting changes in dimensions and benefits. | ||
| View original record | To BY. from HDY. c. For:- Mr. Hs. Mr. UHB. Gear Lever Knob - Bentley. Herewith N. Sch. 3851 which shows a gear lever knob without a metal insert. Compared with N. Sch. 3819 the thread is lengthened… | ||
| scan0066 | Standardisation of an anti-rattle change speed gear lever knob. | ||
| View original record | RR 755B (SH) (S2674. 16-10-33) BM. S/262/6. X228. COMPLETED 24.11.33. BENTLEY STANDARDISATION of PARTS. Date 2.11.33 Description of Parts. ANTI RATTLE CHANGE SPEED GEAR LEVER KNOB. Origin. To prevent… | ||
| scan0067 | Modification to the 2nd speed dogs following a 10,000-mile test on Hancock's car. | ||
| View original record | File To E+ from Hs/Rm. c. to Wor. c. to By. X228. Hs/Rm.6/KW21.12.33. Herewith is a sketch showing the way in which we backed off the 2nd speed dogs on Hancock's car on the last 10,000 miles test.… | ||
| scan0068 | Blueprint detailing a modification to a 2nd speed driver gear, showing every alternate tooth reduced. | ||
| View original record | Hs.1203 EVERY ALTERNATE TOOTH REDUCED .040 DEVELOPED VIEW OF TEETH MODIFIED TO GR 136. 2ND SPEED DRIVER GEAR ROLLS ROYCE, LTD. PRINT ROOM DEC 21 1933 DERBY. | ||
| scan0069 | Modification to the 2nd speed dogs for Bentley, 20/25, and Phantom models. | ||
| View original record | GARY [handwritten signature] To BY. from HDY. c. Wor. W. Hs. Dag. RMC. HDY.1/HP.2.1.34. X228 JL [handwritten] Backed off 2nd speed Dogs. Will you kindly instruct for production backed off 2nd speed… | ||
| scan0070 | Standardisation of a second gear with alternative relieved teeth to facilitate easier gear changing. | ||
| View original record | RR 785S (SH) (B2674, 16-10-33) BM. 3/262/6. X228. Completed 15.1.34 BENTLEY STANDARDISATION of PARTS. Description of Parts. Second Gear with alternative teeth relieved. Origin. To facilitate changing… | ||
| scan0071 | Synchromesh 2nd speed design and the arrangements being made for a provisional patent. | ||
| View original record | S/W HS/Ruy K 228? To Hdy. FROM Sg. Copy to EX/NW.Wor. E.No/Gry. Synchromesh 2nd Speed. Sg19/E29.1.34 Many thanks for Hdy.2/HP.24.1.34. As the matter was not altogether clear to me I asked Rn. to… | ||
| scan0072 | Programme for implementing second-speed synchromesh gearboxes on various car models. | ||
| View original record | COPY. x228 Sg17/E29.1.34. To Hs. from Sg. copy to Wor. E. BY. Hdy. Cx. Re Second Speed Synchromesh. ----------------------- Thanks for Hs. 8/MJ.23.1.34. I of course realised when I first heard of this… | ||
| scan0073 | Wear on thrust washers on a third motion shaft for a Bentley, causing a 10,000-mile test to be stopped. | ||
| View original record | File. X228 To By. From Hs/GWH. Hs/GWH.1/MJ.26.2.34. BENTLEY. Re. wear of thrust washers on third motion shaft. We are very anxious to get the modifications to the gearbox as issued in… | ||
| scan0074 | Persistent vibration rattle issue with the Bentley change gear lever. | ||
| View original record | x228? Hs c.c. E BY Wox EP9/MH.6.3.34 re BENTLEY CHANGE GEAR LEVER - VIBRATION RATTLE ------------------------------------------ In spite of the latest modifications being fitted we are still suffering… | ||
| scan0075 | Rattling change speed lever knob and suggesting a rubber washer as a solution. | ||
| View original record | HS C.R.Y.L. X228 To E. from Sg. Copy to Wor.Hs. In conversation with Bn. the other day about our cars, both RR and Bentley, he mentioned a small irritating complaint, i.e. change speed lever rattles,… | ||
| scan0076 | Cause and potential cures for a rattling Bentley change speed lever. | ||
| View original record | X228 W/S. To Sg. from E. c. Wop. Hs. E.1/HP.19.3.34. re Bentley Change Speed Lever. Replying to your memo Sg.12/E9.3.34 concerning change speed lever rattles, a considerable amount of effort has been… | ||
| scan0077 | Gearbox test report for a B-4 car fitted with a Peregrine gearbox. | ||
| View original record | COPY. X228 23.4.34. Gearbox Test on B-4 Car. Car fitted with Peregrine Gearbox. Test: To show how long 1st and 2nd would last, running F.T. at 2000 R.P.M. driving through Rear Axle onto the Works… | ||
| scan0078 | Position of the Peregrine gearbox and synchromesh second speed for the Bentley. | ||
| View original record | HS X 228 To E. from Sg. Copy to Wor.Hs. re Bentley and Second Speed Synchromesh Sg9/E24.4.34 In E6/HP.23.4.34 you mention that we are running a Peregrine gearbox on a Bentley chassis. I am not sure… | ||
| scan0079 | Modifications for the Peregrine Gearbox, including a new bearing and material changes for motion shafts. | ||
| View original record | RHC. X228 Hs/Gry.4/KW.3.5.34. Gearbox for 5-B-IV. In the first Peregrine Gearbox fitted to 4-B-IV we have tried a very cumbersome sideshaft bearing consisting of a roller and double ball thrust… | ||
| scan0080 | Blueprint of a sideshaft bearing for a Peregrine gearbox in a Bentley chassis. | ||
| View original record | HS 1381 7/8 x 2 1/4 x 1 R&M MDJT/7/8 MODS: TO SIDESHAFT AND) END COVER AND) MACHINING OF CASING SIDESHAFT BEARING - PEREGRINE GEARBOX IN BENTLEY CHASSIS ROLLS-ROYCE, LTD PRINT ROOM 2 MAY 1934 DERBY | ||
| scan0081 | Details on fitting an independent Peregrine Gearbox and frame stiffening for a Bentley chassis. | ||
| View original record | X228 Not sent out. To RHC. Hs/FJH.1/KW.4.5.34. Independent Gearbox & Frame Stiffening for Bentley. We wish to fit an independent Peregrine Gearbox to a Bentley chassis, and also to introduce a… | ||
| scan0082 | List of specifications and modifications for gearbox, clutch, and servo components. | ||
| View original record | -2- HS/FJH.2/KW.4.5.34. (8) The 1st and 2nd and reverse forks are made detachable from the selectors. (9) For assembling the above forks the hole in the top of the box left by the removal of the… | ||
| scan0083 | List of proposed modifications to a gearbox and chassis arrangement, referencing drawing Hs.1382. | ||
| View original record | -3- Hs/FJH.2/KW.4.5.34. Hs.1382 shows the general arrangement of gearbox and cross member in chassis. (1) The tubular cross member is 3¼" O.D. We have not specified the thickness of this member as we… | ||
| scan0084 | The specifications and modifications required for a new high ratio gearbox for a Bentley. | ||
| View original record | X 228 RHC. Hs/Gry.5/KW.26.5.34. High Ratio Gearbox for Bentley. We wish to try a gearbox having very much higher indirect gears than at present. The required ratio can be obtained by altering the 2nd… | ||
| scan0085 | Calculation and comparison of tooth stresses and pitch line loading for various gearboxes. | ||
| View original record | X228 Hdy. - This may interest you. Rm. Hs/Gry.26/KW.30.5.34. Gear Teeth. In view of the failure of the Vulture 3rd speed driven gear, we have calculated the tooth stresses in this gear for several… | ||
| scan0086 | Relative gearbox load values and lubrication practices for various models. | ||
| View original record | -2- Hs/Gry.20/KW.30.5.34. If, however, pitch line loading is not considered a fair criterion, and that owing to distortion the area in contact is proportional to the diametral pitch, then relative… | ||
| scan0087 | Scheme for getting oil into the centre of gearbox shafts by means of screw threads. | ||
| View original record | +228 To E. c. to By. c. to Hdy. Hs/Rm.9/KW.31.5.34. While we were in America we noticed a scheme for getting oil in the centre of gearbox shafts by means of screw threads. This struck us as being a… | ||
| scan0088 | Tests for an 'Acme Thread' lubrication scheme for a gearbox shaft. | ||
| View original record | Hs/WB.10/KW.31.5.34. "Acme Thread" Lubrication Scheme. The main object of these tests was to find whether or not oil could be pumped into the centre of a gearbox shaft by means of an integral screw… | ||
| scan0089 | Test results on sleeve clearance, pressure stabilization, and temperature effects on delivery. | ||
| View original record | -2- Decreasing the sleeve clearance, whilst increasing the free delivery did not increase the maximum pressure, in fact it had a tendency to reduce the pressure with the longer thread. Actually, with… | ||
| scan0090 | Blueprint detailing the lubrication scheme for an Acme thread steering worm. | ||
| View original record | 16-5-34 DELIVERY EFFECTIVE LENGTH 'L' E58296 STEERING WORM. SUPPLY ACME THREAD LUBRICATION SCHEME. MB | ||
| scan0091 | Two graphs detailing the performance of an Acme thread lubrication scheme for a Bentley steering worm. | ||
| View original record | GRAPH I ACME THREAD LUBRICATION SCHEME USING F58296 BENTLEY STEERING WORM .010" DIAMETRAL CLEARANCE SLEEVE MOTORINE 'C' 30°C TEMPERATURE EFFECTIVE LENGTH OF THREAD L 1" & 2" Left Graph Text: Axis… | ||
| scan0092 | Graph detailing the performance of an Acme thread lubrication scheme for a Bentley steering worm at different temperatures and speeds. | ||
| View original record | GRAPH II "ACME" THREAD LUBRICATION SCHEME USING F58296 BENTLEY STEERING WORM. MOTORINE "C" 30° & 60°C TEMPERATURE. EFFECTIVE LENGTH OF THREAD L=2" .002" DIAMETRAL CLEARANCE SLEEVE DELIVERY PTS/HR.… | ||
| scan0093 | Graph from 'Acme Thread' lubrication tests on a Bentley steering worm, plotting delivery against shaft speed and pressure at different temperatures. | ||
| View original record | GRAPH III "ACME THREAD" LUBRICATION TESTS USING F.S.B.296 BENTLEY STEERING WORM. .002" DIAMETRAL CLEARANCE SLEEVE MOTORINE "C" 30° & 60°C. TEMPERATURE. EFFECTIVE LENGTH OF THREAD L=1" DELIVERY PTS… | ||
| scan0094 | Urgent internal request for modifications to a test bed gearbox for servo tests. | ||
| View original record | ✓228 RHC/HPS. From Hs/FJH. Hs/FJH.15/MA.15.6.34. We are handing over to you one of our test bed gear boxes which is fitted with a first motion shaft to suit the Borg and Beck clutch on Unit B.1. We… | ||
| scan0095 | Solution for gearbox sleeve rattles in a Bentley by adding locating plungers. | ||
| View original record | X 228 To Hs. and BY. from HDY. c. Wor. E. Da. RHC. Gearbox S.M. Sleeve Rattles. Bentley. With regard to the prevention of this trouble when starting from rest in 2nd speed, we suggest the addition of… | ||
| scan0096 | Rectifying Bentley gearbox sleeve rattles by modifying the locating plungers and grooves. | ||
| View original record | To Hs. and By. from HDY. c. Wor. E. Da. RHC. Gearbox S.M. Sleeve Rattles. Bentley. Further to HDY.1/HP.18.6.34, we see that the locating plungers cannot be equidistant from the existing rows of… | ||
| scan0097 | Gearbox synchromesh rattles by trying a second design alternative with longitudinal grooves. | ||
| View original record | X 228 To RHC. Hs/Gry.22/KW.21.6.34. Gearbox Synchromesh Rattles. Further to Hdy.2/HP.19.6.34, we should like to try the second alternative, in which longitudinal grooves are used to locate the… | ||
| scan0098 | Modifications to the reverse shaft and pinion for a special high ratio Bentley gearbox. | ||
| View original record | To By. and RHO. from HUY. c. Wcr. E. Hs. Dav. GRY X225 HDY.2/HP.7.7.34. Special High Ratios for Bentley. Herewith is a print of N.Sch.4123 (original to BY) which shows how we suggest the reverse shaft… | ||
| scan0099 | Request to fit a component to prevent synchromesh rattles when starting in second gear. | ||
| View original record | To RHC. +228 Hs/Gry.4/KW.17.7.34. 1-B-IV. Will you please fit to this car N.Sch.4095 for preventing rattles of the synchromesh mechanism when starting off in second gear. This is exactly as already… | ||
| scan0100 | Solution for gearbox sleeve rattles in a Bentley. | ||
| View original record | X228 To DY. from HDY. HDY.1/HP.2.8.34. c. for E. HS. Re M/C. Gearbox S.M. Sleeve Rattles. - Bentley. With regard to the two schemes which were sent to deal with this trouble, the 10,000 mile car which… | ||
| scan0101 | Requesting the manufacture of stronger springs for a Bentley synchromesh sleeve anti-rattle scheme. | ||
| View original record | To RHC. 4228 Hs/FJH.14/KW.27.8.34. Anti-Rattle Scheme for Synchromesh Sleeve - Bentley. ------------------------- We wish to try some stronger springs in the plungers of the above scheme (N.Sch.4095).… | ||
| scan0102 | Testing and potential use of magnesium parts, like gearboxes and dashboards, on Bentley cars. | ||
| View original record | To RHC. +228 Hs/Rm.13/KW. 7.9.34. Magnesium Parts. The gearbox and clutch pit on the open Bentley successfully completed 10,000 miles. Before standardising Hs. is anxious to have more experience and… | ||
| scan0103 | Standardisation of a locating plunger to prevent synchromesh parts rattling in the gearbox. | ||
| View original record | RR 755BN (SH) (S7312, 29-12-33) BM. 3/640/2 COMPLETED 26.9.34. BENTLEY STANDARDISATION of PARTS. Date 6-9-34 (21.8.34 crossed out) X No. 228. Drawing No. Part List Description of Parts. LOCATING… | ||
| scan0104 | Estimated cost and production schedule for extra jigs, tools, and equipment for the 'C' series chassis. | ||
| View original record | STANDARDISATION of PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.3.9.34) £13.10.0. Could be brought on to production at 51st chassis in "C" series (Sft/GH.3.9.34) without scrap. | ||
| scan0105 | Proposal to modify the Wraith gearbox for the Bentley by reducing the 3rd speed gear ratio from .8 to .774. | ||
| View original record | To BY. Copy to Wor. B. Hs. DA. RHC MX x4709 228 22 HDY.1/MN.19/10/34. Wraith Gearbox for the Bentley. N Sch. 4212 herewith shows the gears we propose for this box on the Bentley. The ratios are the… | ||
| scan0106 | Letter to S. Smith & Sons regarding high oil pressure readings from an oversize oil pump on a 20/25 HP chassis. | ||
| View original record | x 229 Exptl. Dept. Hs/Smth.6/KW. 22nd December,1934. Messrs. S. Smith & Sons Ltd., Cricklewood Works, London, N.W.2. Dear Sirs, Oil Pressure Gauge for 20/25 HP. Chassis. We are experimenting with an… | ||
| scan0107 | Letter from S. Smith & Sons discussing the pressure testing of an oil gauge and recommending a special gauge. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES:… | ||
| scan0108 | Letter to S. Smith & Sons Ltd. regarding the risk of using a 40 lb. gauge and a request for a 60 lb. gauge for trial. | ||
| View original record | Exptl. Dept. Hs/Smth.4/KW. 2nd January, 1935. Messrs. S. Smith & Sons (M.A.) Ltd., Cricklewood Works, London, N.W.2. Your Ref: E.1.POD. Dear Sirs, We beg to thank you for yours of the 29th ult., and… | ||
| scan0109 | Modifications to the Bentley Isolated Change Gear Lever. | ||
| View original record | To Hs/Rm. Copy to Wor. E. ~~Dr. BY~~ RHC. HDY.1/MN.2.2.35. Isolated Change Gear Lever - BENTLEY. Herewith is a print of N.Sch.4355 which shows the following modifications to this lever:- 1. More… | ||
| scan0110 | Requesting the manufacture of several sets of modified isolated gear levers for the 20/25 and Bentley models. | ||
| View original record | To RHC. 4228 Hs/Rm. S/KW. 2.2.35. Isolated Gear Levers on the Bentley. We have asked you to make two sets of parts to the original scheme of isolated gear lever. Hardy has now been over his drawings… | ||
| scan0111 | Bracket, adjustments, and stiffener for an isolated gear lever on a Bentley. | ||
| View original record | To BY. Copy to Her.H. HS. De. RHC. [Handwritten] x228 HDY.2/MN.19/2/35. [Handwritten signature] RAA [Handwritten] GRY [Handwritten] Follow up please [Handwritten signature] Rm Isolated Gear Lever -… | ||
| scan0112 | Progress of the change speed lever mechanism for 20/25 and Bentley models. | ||
| View original record | 4228 To By. Hs/Rm.3/KW.29.3.35. Change Speed Lever Mechanism. We hope that we are not getting committed too far ahead on change speed mechanisms for the 20/25 and Bentley, because the isolated scheme… | ||
| scan0113 | Development, testing, and production of an isolated change speed lever for Bentley cars. | ||
| View original record | X 228 To Wor. from Hs/Rm. c. to Sft. c. to E. c. to By. Hs/Rm.7/KW.29.4.35. Isolated Change Speed Lever - Bentley. ===================================== We consider that this is one of the biggest… | ||
| scan0114 | Improvement to the Isolated Change Speed Lever for Bentley. | ||
| View original record | Hs/Rm. from Wor. Sft. H. By. Roy. L228 Rm Wor3/R.1.5.35. Isolated Change Speed Lever - Bentley. Hs/Rm.7/KW.29.4.35. This is an important improvement, and, therefore, if all the other officials… | ||
| scan0115 | The dispatch of a scheme for a gas tight isolated change gear housing. | ||
| View original record | URGENT x228 To BY. from E/JNR. E/JNR.1/HP.11.5.35. c. Hs/Rm. RHC Bentley. We send to you herewith:- LeC.4484 showing gas tight scheme for the isolated change gear housing. LeC.4484 herewith. E/JNR. | ||
| scan0116 | Gearbox modifications for a Large Bore Bentley to address overloaded half shafts. | ||
| View original record | To RHC. +228 Hs/Gry.18/KW.15.5.35. Gearbox for Large Bore Bentley. In order to do away with the criticism that the half shafts on this car are overloaded, we require a 16% higher 1st gear. Will you… | ||
| scan0117 | Higher first speed gear ratios for the Large Bore Bentley. | ||
| View original record | To E. c. to Hdy. 4228 Hs/Gry.20/KW.31.5.35. Higher 1st Speed For Large Bore Bentley. There seems to be some misunderstanding over the gear ratios we had suggested for this car. We recommended raising… | ||
| scan0118 | Requesting the fitting of altered cantilever pedals for a Bentley. | ||
| View original record | To HHC. X228 Hs/Gry.12/KW.26.6.35. Cantilever Pedals - Bentley. We understand the altered pedals to Hs.1923/4/5 are ready. Will you please fit them to B-23-AE in accordance with Hs/AFM.1/KW.17.4.35.… | ||
| scan0119 | Customer complaints about rattling gear levers and seeking a solution. | ||
| View original record | Hs. C. E. RY Wors. x2S Rma EP15/MH.27.6.35 re CHASSIS - RATTLING GEAR LEVERS ------------------------------- With reference to our complaints on the above, we have now received a report from JLE at LH… | ||
| scan0120 | Modifications to the Bentley gearbox for a higher first speed. | ||
| View original record | P GRY. kms To HY. from HDY. c.c. Wor. E. Hs. Bs. HLC. HDY.1/HP.2.7.35. Higher First Speed. - Bentley. N. Sch.4556 herewith shows the modifications necessary to obtain a .425 1st speed in the present… | ||
| scan0121 | Standardisation of an isolated change speed lever to remove rattles. | ||
| View original record | RR 755B (BH) (69654, 19-9-34) SM. 3/1832/5. COMPLETED 4.7.35. BENTLEY STANDARDISATION of PARTS. Date 16.4.35. 5-6-35 X No. 228. Drawing N. Sch. No. 4355. Part List Description of Parts. ISOLATED… | ||
| scan0122 | Cost estimation for extra jigs and tools, with a cost comparison between an old and a new part. | ||
| View original record | Est. cost of extra jigs, tools and equipment (Sft/Ws.17.5.35) £493.0.0 Could be brought on to production at the 1st chassis in "F" series, (Sft/GH.28.5.35) without scrap. Material Labour Charges Total… | ||
| scan0123 | Improvement to the gear lever reverse stop spring for all cars. | ||
| View original record | GRY - Have you ever heard any complaints? +228 Pm. To Mr. from HDY. C. Mr. E. Hs. Ds. RHG Gear Lever Reverse Stop. - All Cars. E. has suggested that a stronger spring for the reverse stop would be an… | ||
| scan0124 | Cure for gear lever rattles on Bentley and 20/25 HP cars. | ||
| View original record | S/W To Hs/Rm. from Sg. Copy to Wor.H. Rm Gear Lever Rattles on Bentley Cars and 20/25 HP Cars. I see that Hd. is saying that there is no cure which can be applied to existing cars. I was under the… | ||
| scan0125 | Gear lever rattles and retrofitting a standardised isolated change speed lever to Bentley and 20/25 HP cars. | ||
| View original record | To Sg. c. to Wor. c. to H. X228 Hs/Rm.11/KW.18.7.35. Gear Lever Rattles on Bentley and 20/25 HP. Cars. Replying to Sg.22/E.17.7.35. The scheme for the isolated change speed lever which has been… | ||
| scan0126 | Confirming the dispatch of a drawing showing modifications to an isolated gear lever's ball bearing mounting. | ||
| View original record | X228 To BY. from HDY. c. Er. Hs. Des. RHC. HDY.1/HP.4.8.35. Isolated Gear Lever. 20/25 to LeC.4499. Bentley to LeC.4484. This is to confirm that on the 31st ultimo. we sent to you N.Sch.4612 (and a… | ||
| scan0127 | Issue with second gear jumping out on Bentley Chassis B.161-CW while touring in Switzerland. | ||
| View original record | HS. E. Hdy. X228 R Gry. See me please Rm Hd/SB16/HR.17.9.35. re SECOND GEAR JUMPING OUT. Bentley Chassis. -------------------- We have to report a case of second gear jumping out on chassis B.161-CW.,… | ||
| scan0128 | Complaints of the second gear jumping out of mesh on 20/25 HP & Bentley models. | ||
| View original record | To RHC. x228 Hs/Gry.31/KW.31.10.35. Complaints of Second Gear Jumping out of Mesh on 20/25 HP. & Bentley. We send you herewith N.Sch.4677, to overcome the above trouble, of which we are now getting a… | ||
| scan0129 | Proposal to investigate 'chunking in the drive' on a Bentley by isolating the gearbox. | ||
| View original record | To RHC. X228 Hs/Smth.29/KW.7.11.35. Chunking in the Drive. We wish to find out whether we can accentuate the chunks on a Bentley by isolating the gearbox from the engine. Will you please prepare a… | ||
| scan0130 | Production and wear of Fabroil timing gears on the Bentley. | ||
| View original record | To RHC. 4228 Hs/Rm.18/KW.5.12.35. Fabroil Timing Gears on the Bentley. Production are finding that the Fabroil gears on the Bentley are much easier to produce than the present standard gear, and… | ||
| scan0131 | Testing a locked solid universal change speed mechanism to diagnose and resolve gear lever rattles. | ||
| View original record | To E. c. to Hdy. x228 Hs/Gry.14/KW.2.7.36. Gear Lever Rattles. We have tried N.Sch.4806, in which the outer universal change speed mechanism is locked solid, on B-23-AE. This car has an exceedingly… | ||
| scan0132 | Request to manufacture stronger synchromesh anti-rattle springs for a Bentley gearbox. | ||
| View original record | To RHC. X228 Hs/Smth.15/KW.15.7.36. Bentley Gearbox. We want to try some stronger synchromesh anti-rattle springs in the Bentley gearbox. Will you please make us six springs to GB.1304, but of free… | ||
| scan0133 | Standardisation of parts for servo threads on synchromesh cones on drawing G.83964. | ||
| View original record | RR 755B (tOH) 88620 12-8-35 W.H.K. 2x800 COMPLETED 4.9.36. BENTLEY STANDARDISATION of PARTS. Date: 22.6.36 X No. 228 Drawing No. Description of Parts: SERVO THREADS ON SYNCHROMESH CONES AS ON DRAWING… | ||
| scan0134 | Cost estimate and production timeline for extra equipment for the 'J' Series Chassis. | ||
| View original record | Estimated cost of extra Jigs, Tools and Equipment £5 (Sft/WS.9.7.36.). Could be brought on to production at the first Chassis in "J" Series (Sft/GH.15.7.36.). | ||
| scan0135 | Modification to a 25/30 & Bentley gearbox design to overcome lateral binding. | ||
| View original record | x228 Gry BY. c.c. E. De. Hs/Rm. RHC. E/HDY.1/HP.14.9.36. Gearbox 25/30 & Bentley. We send herewith N.Sch.4900 to overcome the lateral binding referred to in Hs/FJH.3/JH.10.7.36. We have not heard of… | ||
| scan0136 | Growing complaint regarding driving dogs on the 4 1/4 litre Bentley. | ||
| View original record | 228 To Rm. Cricklewood, Oct. 27th, 1936. Bentley. The complaint of driving dogs on the 4 1/4 litre. is growing. Is there any movement for improving this position. GW.Hancock. | ||
| scan0137 | Requesting specific Bentley gearbox parts for a cost comparison with Phantom III pieces. | ||
| View original record | 228 To HPS. from Rm/Gry. Rm/Gry.12/AP.1.12.36. RE: GEARBOX COSTS. Will you please send to Rm.'s Office parts of the Bentley gearbox to - G.55517 G.54958 G.55810 GB.430 G.55815 G.54759 together with… | ||
| scan0138 | Requesting to try a Hoffman bearing N.2583 in a Bentley rear axle. | ||
| View original record | 228 To HPS. from Rm/Gry. Rm/Gry.4/AP.29.12.36. 1.B.1V. By. has asked us to try the attached bearing N.2583 made by Hoffman, in a Bentley rear axle. Will you please fit this to 1.B.1V. Rm/Gry. | ||
| scan0139 | The material of adjusting washers for the bevel pinion main bearing on a Bentley chassis. | ||
| View original record | 228. c. Rm/Grys. BY.6/G.16.4.37. BENTLEY CHASSIS - RE: BEVEL PINION DOUBLE PURPOSE MAIN BEARING. ------------------------------------------------------ It is very evident from what Mr. Grylls is… | ||
| scan0140 | Confirmation memo requesting a new Bentley gearbox for destruction testing on a dynamometer. | ||
| View original record | HPS. from Rm/Gry. γ 228. Rm/Gry15/R.16.4.37. This is to confirm our asking you to try and obtain from production a complete new Bentley gearbox, so that we can test this to destruction on the… | ||
| scan0141 | Instructing the despatch of five scrap Hoffman Ball Bearings to the manufacturer for examination. | ||
| View original record | To D/SP. from HPS/WSC. G/Ms. (crossed out) Rm/Gry. 228 HPS/WSC.21/BA.2.6.37. Ball Bearings. We hand you herewith:- 5 - Hoffman Ball Bearings. Will you please despatch same to-day to Messrs. Hoffman… | ||
| scan0142 | Letter to The Hoffman Manufacturing Co. regarding the return of five noisy bearings from a Bentley gearbox. | ||
| View original record | 228 Rm5/R. 2nd June, 1937. The Hoffman Manufacturing Co.,Ltd., CHELMSFORD. For the attention of Mr. Smith. Dear Sirs, We are returning to you five bearings removed from a Bentley gearbox after 13,000… | ||
| scan0143 | Acknowledgment of enquiry from The Hoffmann Manufacturing Co., Ltd. | ||
| View original record | HOFFMANN Registered Trade Mark BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. TELEPHONE: 3151-5 TELEGRAMS: HOFFMANN, CHELMSFORD CODES… | ||
| scan0144 | Report from The Hoffmann Manufacturing Co. Ltd. on the examination of failed bearings from a Bentley gearbox. | ||
| View original record | HOFFMANN Registered Trade Mark BRANCHES: LONDON, BIRMINGHAM, MANCHESTER, LEEDS, GLASGOW. AGENTS IN PRINCIPAL COUNTRIES THROUGHOUT THE WORLD. TELEPHONE: 3151 (5 lines) TELEGRAMS: HOFFMANN CHELMSFORD… | ||
| scan0145 | Failed Bentley gearbox bearing due to being fitted too tightly in the casing. | ||
| View original record | W/K. To Rm/GWH. from Rm/Gry. 228 Rm/Gry.3/AP.15.6.37 BENTLEY GEARBOX BEARINGS. Sometime ago you sent us a set of bearings off a customer's car for a complaint of noise. Unfortunately we have lost the… | ||
| scan0146 | Requesting an update on the mock-up for the Bentley with Overdrive. | ||
| View original record | S/W. To Rm. from Sg. copy to Hs. 228 Sg5/D7.7.37. Re: Bentley with Overdrive. I have a note that on the 8th of June we were told that we could have a mock-up of the Bentley with the overdrive in about… | ||
| scan0147 | Development of a Bentley with Overdrive, proceeding with experimental sketches. | ||
| View original record | 228 Sg. from Rm. c. Hs. Rm4/R.8.7.37. Bentley with Overdrive. Sg5/D7.7.37. When this matter was discussed E. said that he would prepare a scheme. We were waiting for this. We understand that owing to… | ||
| scan0148 | Requesting the production of one set of Bentley 1st and 3rd Motion Shaft components from two blueprints. | ||
| View original record | HDS Rm. 228 BY/NS.3/G.S.9.37. BENTLEY - 1st. and 3rd. Motion Shaft. We send you herewith two blueprints of the following :- Ex.S.42 Outermember - Synchromesh. 1 off. Ex.S.43 Plunger 12 off. The above… | ||
| scan0149 | Sending blueprints for a Bentley 1st and 3rd motion shaft and requesting the production of one set. | ||
| View original record | EES Rm/Gry. 228 BY/NS.3/G.3.9.37. BENTLEY - 1st. and 3rd. Motion Shaft. We send you herewith two blueprints of the following :- Ex.S.42 Outermember - Synchromesh. 1 off. Ex.S.43 Plunger 12 off. The… | ||
| scan0150 | Return of a Ransome & Marles ball bearing from a Bentley Gear Box. | ||
| View original record | To [crossed out]D/SP.[/crossed out] from HPS/WSC. 328 [crossed out]TS/FC.[/crossed out] [crossed out]GZ/MS.[/crossed out] [crossed out]Rej[/crossed out] Rm/Gry. HPS/WSC.30/BA.22.9.37. C/S4107. Bentley… | ||
| scan0151 | 100-hour dynamometer test of a Bentley gearbox with a magnesium casting. | ||
| View original record | By. from Rm/Gry. Hs. Da. Hdy. 228 Rm/Gry.3/AP.18.11.37. BENTLEY GEARBOX. In view of the proposed overdrive box for Bentley II.A. we ran a hundred hours dynamometer test at full throttle 2000 r.p.m. in… | ||
| scan0152 | The casting and introduction of an overdrive gearbox for the Bentley 'M' series. | ||
| View original record | BY/CRL. c. Da. c. Rm. c. RHC. 228 BY/Mtn30/N.25.11.37. Re: Bentley - Overdrive Gearbox. The Works have informed us no gearboxes have yet been cast for 'M' series, therefore, the overdrive box (not… | ||
| scan0153 | The production schedule for the Bentley Overdrive Gearbox for the 'M' Series. | ||
| View original record | By/Mtn. from Rm. 228 Rm1/R.27.11.37. BENTLEY - OVERDRIVE GEARBOX. With reference to By/Mtn30/N.25.11.37., we understand that this overdrive gearbox has been instructed for 'M' Series, for which… | ||
| scan0154 | Instruction to slow production on parts for the 'M' Series Bentley gearbox due to a potential overdrive introduction. | ||
| View original record | 228 BY/CRL. c. Rm. BY 6/N.3.12.37. Bentley - Gearbox Gears - 'M' Series. As there is a possibility of introducing the overdrive gearbox complete with gears for the second half of 'M' series, will you… | ||
| scan0155 | Requesting information on the production possibilities of the Bentley Overdrive Gearbox. | ||
| View original record | 228. later £380 1 in m £100 10 in m To BY. from Sg. re Bentley Overdrive Gearbox. When I am at Derby next Tuesday, I should like to have information regarding the possibilities of the introduction of… | ||
| scan0156 | New layshaft drawing (PD.82) for the Bentley 50 and Wraith gearbox. | ||
| View original record | COPY FOR FILES. Hs. o. Da. o. BY. o. Km. Handwritten: 228 also 1044 b28 Da/Hdy.2/G.22.12.37. BENTLEY, BENTLEY 50 AND WRAITH GEARBOX. We send herewith a print of PD.82 which shows the layshafts for… | ||
| scan0157 | Outlining the introduction and associated costs for the Bentley Overdrive Gearbox. | ||
| View original record | 228 To Sg. & Hs. from RHC. c.c. to BY. & RM. RHC.2/WJ.15.1.38. BENTLEY OVERDRIVE GEARBOX. Regarding the introduction of the Overdrive Gearbox for Bentley Chassis, this can be introduced without Scrap… | ||
| scan0158 | Extra factory cost for the Overdrive Gearbox on a Bentley chassis. | ||
| View original record | To. RHC... From HHC/CAN. Sy & Rms 228 RHC/CAN.1/MC.27.1.38. RE OVERDRIVE GEARBOX - BENTLEY CHASSIS or 1260? SEC: 6030/40/50. The extra factory cost for the Overdrive Gearbox is 8/- per chassis, in… | ||
| scan0159 | Particulars of the synchromesh springs, grooves, and cam angles for the new Bentley gearbox. | ||
| View original record | BY/NS. c. Rm. c. De/Hdy. 228 DA.17/G.7.2.38. BENTLEY GEARBOX. H.H. Herewith is FD.107, giving particulars of the synchromesh springs, grooves and cam angles on the New gear box. FJH DA. | ||
| scan0160 | Introduction of a new 2nd and 3rd Motion Shaft for the Bentley M Series Overdrive Gearbox. | ||
| View original record | G. Dept. (struck through) c. Rm/Gry. BY/NS.20/G.24.5.38. 228 Bentley (M SERIES) OVERDRIVE GEARBOX Kindly note the new 2nd and 3rd Motion Shaft with hardened splines produced in accordance with the… | ||
| scan0161 | Requesting the rebuild of a gearbox after a propeller shaft failure, with instructions for reassembly. | ||
| View original record | R 228? To HPS. from Rm/Gry. Rm/Gry.7/MH.8.7.38. 5.B.IV. As soon as the parts of the B.50 [handwritten correction: gearbox] have been crack tested we want to continue the dynamometer testing what was… | ||
| scan0162 | Investigation into a third-speed pinion failure in a Bentley 11 gearbox, with proposed modifications. | ||
| View original record | 228 Da/Hdy.8/G.20.9.38. c. Rm. GBy 95 in M BENTLEY 11. GEARBOX. There has been a failure on one of the experimental cars of a third speed pinion in the neck of the coupling teeth after approximately… | ||
| scan0163 | Modification to a Bentley Chassis gearbox front end cover and the dispatch of two blueprints. | ||
| View original record | 228 Rm/FJH. By/Ald.1/AW.3.2.39. BENTLEY CHASSIS. GEAR BOX & ACTUATING MECH. SECTION 6030. We send you herewith two Blue Prints of:- EXS.1395. Front End Cover - 1 off. The above piece has 4 holes .500… | ||
| scan0164 | Suggestion for the instruction book regarding the M. Series 4 1/4 litre gearbox and gear changing. | ||
| View original record | 228. To NW. from Rm/Gry. c. By. Rm/Gry.2/AP.23.3.38 BENTLEY M. Series. Gearbox. We suggest for the Instruction Book: Brief description of 4 1/4 litre. Gearbox Four forward speeds and reverse; the… | ||
| scan0165 | Note about replacing steel bushes with brass bushes in an overdrive gearbox ahead of a trip to France. | ||
| View original record | 228. Sg. from Rm. c. By. c. RHC. Rm5/R.21.1.38. 6.B.IV - OVERDRIVE GEARBOX. We have arranged for this car to cross over to France on Sunday, January 23rd. We have replaced the steel bushes with brass… | ||
| scan0166 | Merits and issues of the Bentley overdrive gearbox. | ||
| View original record | Hs. from Rm. c. By. 228 also 10 20 Rm1/R.15.12.37. BENTLEY OVERDRIVE BOX. With reference to Cx8/KW13.12.37., the main object of this box from our point of view is to improve the bearing situation on… | ||
| scan0167 | Proposal to replace the third speed with an overdrive on the Bentley III Gearbox. | ||
| View original record | 228 Der C. Sgs. Ins. Ex. Rm. E/HDY.2/HP.20.4.37 Bentley III Gearbox. With regard to the proposal to rearrange our four speeds to give an overdrive in place of the third speed as for the Phantom, we… | ||
| scan0168 | Implications of fitting an overdrive gearbox to Wraith and Bentley models, including changes to size, weight, cost and performance. | ||
| View original record | (sheet 2) There is an increase of size, weight and cost with the overdrive box. We know that the shaft centres must be increased from 3.2" to 3.5", but we do not yet know whether anything more must be… | ||
| scan0169 | Performance curve comparison between a standard gearbox and a proposed overdrive for the Bentley III. | ||
| View original record | N SCH 5120 ROLLS-ROYCE, LTD. PRINT ROOM APR 20 1937 PERFORMANCE CURVES COMPARISON BETWEEN STANDARD GEARBOX AND PROPOSED OVERDRIVE BENTLEY III B.H.P AT ROAD WHEELS 10, 20, 30, 40, 50, 60, 70, 80, 90,… | ||
| scan0170 | Modifications to the Bensport front horns (front dumb iron). | ||
| View original record | BY. FROM DA. X227 DA1/M27.8.32. C. to SG. WOR. HS. E. BENSPORT FRONT HORNS. Herewith is N.sch.3527 shewing the modifications to the front dumb iron produced by the recent chassis layout. In all other… | ||
| scan0171 | Scheme 3546 for the Bensport, detailing the rear engine supporting crossmember, front brake differential, and clutch pedal. | ||
| View original record | BY. FROM DA. X22T. DA2/M21.9.32. C. to SG. WOR. HS & E. BENSPORT - REAR ENGINE SUPPORTING CROSSMEMBER AND FRONT BRAKE DIFFERENTIAL. Herewith we send N. scheme 3546., shewing the arrangement of the… | ||
| scan0172 | The dispatch of information for Bensport frame side members, specifically crossmembers. | ||
| View original record | BY. FROM DA. x 227 DA3/M7.11.32. C. to SG. WOR. HS. E. BENSPORT FRAME SIDE MEMBERS. Here-with we send: N.sch.3567 - 4th crossmember. " 3580 - crossmember behind the clutch pit. " 3581 - crossmember… | ||
| scan0173 | The arrangement of a starting handle and front crossmembers for a Bensport (J.1) vehicle. | ||
| View original record | BY. FROM DA. x225. DA5/M7.11.32. C. to SG. WOR. HS. E. BENSPORT (J.1) STARTING HANDLE & 7th. & 8th. CROSSMEMBERS. Herewith we send N.sch.3583 shewing the arrangement of the starting handle and the 2… | ||
| scan0174 | Blueprint for an experimental front end, engine suspension, and radiator support for the Bensport J.1. car. | ||
| View original record | X 227. To RHC. from E/JNR. c. Wor. Hs. re Bensport J.1. Please receive herewith: Blueprint - LeC.3258 Experimental Front End Engine Suspension and Radiator Support, for the above car.… | ||
| scan0175 | Instructions and blueprints for radiator and engine suspension on the Bensport J.1. chassis. | ||
| View original record | 227. To Ba. from E. E.6/HP.17.11.32. c. Sg. Hor. Hs. By. re Bensport J.1. We send you herewith LeC.3258 showing the instructions we have issued covering the radiator suspension and engine front… | ||
| scan0176 | Communication regarding modifications to the Bentport 3rd crossmember. | ||
| View original record | BY. FROM DA. x225. DAL/M7.12.32. C. to SG. WOR. HS. E. BENTPORT 3rd. CROSSMEMBER. N.SCH.3567. Replying to BY/CGH4/G281132., we agree that in some ways the frame side member shewn on the above N.scheme… | ||
| scan0177 | Design modification for the Bentley's front apron dumb iron covers after a part failed. | ||
| View original record | To BY. from E/JNR. c. Hs. Sft. RHC. E/JNR.IO/HP.6.7.33. re Bentley - Front Apron Dumb Iron Covers. We send you herewith LeC.3561. On Brooklands track the front apron of the Bentley car fell off, no… | ||
| scan0178 | Requesting tests on chassis frame distortion for Bentley, 25-HP, and Phantom II models, with handwritten results. | ||
| View original record | X227 To Hs. from EV. EV.1/HP.19.1.34. c. c. E.B. re Chassis Frame Distortion. We wish to confirm our conversation of this morning, that you will make a test of the Bentley, 25-HP, and Phantom II… | ||
| scan0179 | Chassis frame distortion tests concluding that issues with doors not closing are due to the body, not the chassis. | ||
| View original record | To Ev. from Hs/Gry. c. to E. X227 Hs/Gry.9/KW.25.1.34. Chassis Frame Distortion. ----------------------- We have carried out the tests suggested in Ev.1/HP.19.1.34. A straight edge was clamped to the… | ||
| scan0180 | Applying Terraplane frame bracing to a Bentley chassis to address frame jellying. | ||
| View original record | RHC. X 227 Hs/Rm.14/KW.1.5.34. Bentley Frame Jellying and Terraplane Mounting. ------------------------------------------ A few days ago we started to consider how we could apply the Terraplane frame… | ||
| scan0181 | Modified crossmember for Bentley wings and lamps. | ||
| View original record | 2227 To - BY. from Da. c. For. E. Hs. H-ey. KHS. Da.1/HP/31.8.34. Bentley - Wings and Lamps. Herewith is N. Sch.4168 shewing the crossmember between the lamp standards and wing stays which was shewn… | ||
| scan0182 | Request to investigate the vibration of the front end of a Bentley frame using a Chronograph. | ||
| View original record | To RHC. X227 Hs/FJH.18/KW.22.9.34. Vibration of Front End of Bentley Frame. We wish to carry out an investigation of the vibration of the front end of the Bentley frame by means of our Chronograph.… | ||
| scan0183 | Standardisation of parts for a dropped front cross member. | ||
| View original record | RR 755BN (SH) (57312, 29-12-33) BM. 3/640/2 COMPLETED 18.10.34 BENTLEY STANDARDISATION of PARTS. Date 21-9-34 (crossed out) Date 25.7.34 X No. 227. Drawing No. Part List Description of Parts. DROPPED… | ||
| scan0184 | Cost estimate and production feasibility for extra jigs, tools, and equipment for the 'D' series chassis. | ||
| View original record | STANDARDISATION OF PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.3.9.34) £396.0.0. Could br brought on to production at 1st chassis in "D" series (Sft/GH.3.9.34) without scrap. RECEIVED… | ||
| scan0185 | Standardisation of a moved back battery cross member to increase rear seat foot room. | ||
| View original record | RR 7558N (SH) (57312, 29-12-33) BM. 3/640/2 COMPLETED 13.11.34. BENTLEY STANDARDISATION of PARTS. Date 23-10-34 X No. 227. Drawing No. EV.S116 Part List RR. Sch. 695. N.Sch. 4042. Description of… | ||
| scan0186 | Estimated cost for extra jigs, tools, and equipment for a modification on the 'D' series. | ||
| View original record | YELV STANDARDISATION of PARTS X Est. cost of extra jigs, tools and equipment (Sft/Ws. 28.9.34) £164.0.0. This modification has already been instructed for "D" series, without scrap | ||
| scan0187 | Experimental department report on chassis deflection due to front braking on Bentley & Spectre models. | ||
| View original record | x227 EXPERIMENTAL DEPARTMENT REPORT. REFERENCE :- Hs/Gry.21/KW.18.12.34. Subject of Report:- Chassis Deflection due to Front Braking, Bentley & Spectre. General Conclusions :- Spectre Front End… | ||
| scan0188 | Chassis deflection tests under front braking forces for Bentley and Spectre models. | ||
| View original record | HS/Cry.21/KW.18.12.34. Chassis Deflection due to Front Braking. Bentley & Spectre. When the Bentley front axle was fitted to Peregrine cars we endeavoured to find out whether the axle was stiff enough… | ||
| scan0189 | Frame buckling, chassis distortion, and front brake jaggering, with comparisons to other car models. | ||
| View original record | -2- (4) The frame itself had buckled in the bend just behind the pot fixing, the welding underneath the frame having given way. We are handing the chassis to R.M.C. for a detailed examination of… | ||
| scan0190 | Modification notice for the Bentley Chassis regarding a new spherical end socket for the pedal shaft. | ||
| View original record | Wyman 4227 BY/HEB2/H.22.1.35. c. Ha/Hm. BENTLEY CHASSIS. FRAMES AND FITTINGS SEC:7000. PEDALS SEC:7100. MODIFIED END SOCKET FOR PEDAL SHAFT INTRODUCING SPHERICAL SOCKET TO SUIT CANTILEVER PEDALS, IN… | ||
| scan0191 | Improved fixing of the rear spring anchor bracket for a Bentley chassis. | ||
| View original record | x227 c. Hs/fm. BY/HEB7/M.4.2.35. BENTLEY CHASSIS. FRAMES AND FITTINGS SEC:7000. IMPROVED FIXING OF REAR SPRING ANCHOR BKT: TO RR.SCHEME 819. In accordance with the above scheme, we have detailed the… | ||
| scan0192 | Standardisation of a dropped front cross member between the head lamps to reduce headlamp movement. | ||
| View original record | COMPLETED 16.3.35. RR 7558 (5M) (69654. 19-9-34) BM 3/1832/5 BENTLEY STANDARDISATION of PARTS. Date 21.1.35. X No. 227. Drawing No. Part List Description of Parts. DROPPED FRONT CROSS MEMBER BETWEEN… | ||
| scan0193 | Cost estimation for extra jigs, tools, and equipment, and a cost comparison between an old and a new part. | ||
| View original record | REFINEMENT. STANDARDISATION of PARTS. Est. cost of extra jigs, tools and equipment (Sft/Ws.8.2.35) £253.0.0. Could be brought on to production at 101st chassis in "D" series, (Sft/GH.8.2.35) scrap as… | ||
| scan0194 | Design requirements for a cross member in the Bentley frame, considering gearbox configurations. | ||
| View original record | To E. from Hs/Rm. c. to Wor. c. to Hy. c. to Da. x224 Hs/Rm. 21/KW.26.3.35. Cross in the Bentley Frame. Now that we have the isolated change speed lever the necessity for a separate gearbox on the… | ||
| scan0195 | Test report on Bentley frame distortion under various loads. | ||
| View original record | To Hs/Gry: Hs/GR. 8/KW.4.4.35. Bentley Frame Distortion. 1st Point 1st cross member 2nd " Centre of 1st & 2nd points } 27.75" 3rd " C/L of dashboard } 27.75" 4th " 2nd body bracket } 21" 5th " 3rd… | ||
| scan0196 | Bentley frame distortion tests, detailing measurements at various points under different loads. | ||
| View original record | To Hs/Gry. x224 Hs/GR. 8/KW. 27.4.35. Bentley Frame Distortion. Completed with Dashboard minus 2nd Crossmember. 1st Point 1st Crossmember } 27.75" 2nd " Centre of 1st & 3rd Points } 27.75" 3rd " C/L… | ||
| scan0197 | Bentley frame distortion test results with dashboard and 2nd crossmember. | ||
| View original record | To Hs/Gry. 4227 Hs/GR.7/KW. 27.4.35. Bentley Frame Distortion. Completed with Dashboard & 2nd Crossmember. 1st Point 1st Crossmember 2nd " Centre of 1st & 3rd points) } 27.75" 3rd " C/L of Dashboard }… | ||
| scan0198 | Blueprint for an experimental stiffener for the front of a Bentley chassis frame. | ||
| View original record | [ "BENTLEY FRAME DISTORTION.", "HS1954", "CHASSIS FRAME", "2ND CROSS MEMBER.", "THE SIDES OF THE STIFFENER ARE TRAPPED BETWEEN THE FLANGES OF THE 2ND CROSS MEMBER", "EXP'L STIFFENER FOR FRONT OF… | ||
| scan0199 | Request to twist a distorted Bentley chassis frame back to its normal position for fitting a new stiffener. | ||
| View original record | To RHC. Hs/KS.2/KW. 7.5.35. Bentley Frame Distortion. We have been carrying out some distortion tests with the Bentley chassis frame, which has taken a permanent set. We should therefore be pleased if… | ||
| scan0200 | Blueprint of the front cross bracing for a Bentley chassis. | ||
| View original record | X227 FOR FILE THE 2ND. CROSSMEMBER FITTED HERE. Total wt. of Cross Bracing 13lbs. FRONT CROSS BRACING FOR BENTLEY CHASSIS. EXPL ROLLS ROYCE, LTD PRINT ROOM MAY 13 1935 DERBY H.S. 1962. K. SCHOLES… | ||
| scan0201 | Data sheet detailing measurements for a Bentley Chassis Frame fitted with diamond bracing at the front end. | ||
| View original record | To Hs/Gry. (XW) Hs/KS.12/KW.21.6.35. Bentley Chassis Frame with Diamond Bracing fitted at Front End. ------------------------------------------ 1st Point Front Cross Member } 28" 2nd " Rear of Cross… | ||
| scan0202 | Test data showing deflection measurements for a Bentley frame under various loads. | ||
| View original record | To Hs/Gry. 1/2-7 Hs/KS.8/KW.19.7.35. Bentley Frame. Boxed in at Front End, without Dashboard. 1st Point - Front Cross Member 2nd " Rear of where cross bracing was } 28" 3rd " 1st Body Bracket } 48"… | ||
| scan0203 | Measurement data for a Bentley chassis frame, boxed at the front end and complete with a dashboard. | ||
| View original record | To Hs/Gry. Hs/KS.1/KW. 7. 8. 35. Bentley Chassis Frame Boxed in at Front End and complete with Dashboard. 1st Point First Cross Member 28" 2nd " Rear of where cross bracing was mounted 48" 3rd " 1st… | ||
| scan0204 | Measurement and specification sheet for a Bentley Frame complete with Dashboard and 2nd Crossmember. | ||
| View original record | X227 10/8/35 Bentley Frame Complete with Dashboard and 2nd Crossmember. 1st Point 1st Crossmember 2nd " Centre of 1st & 3rd points} 27.75" 3rd " C/L of dashboard} 27.75" 4th " 2nd body bracket} 21.0"… | ||
| scan0205 | Measurement data for a Bentley frame, complete with dashboard and without the 2nd crossmember. | ||
| View original record | X227 10/8/35 Bentley Frame complete with Dashboard and without 2nd Crossmember. 1st Point - 1st Crossmember } 27.75" 2nd " Centre of 1st and 3rd points) } 27.75" 3rd " C/L of dashboard } 21.0" 4th "… | ||
| scan0206 | Requesting a Cadillac type cross be made and fitted to a Bentley test frame, with considerations for side channels. | ||
| View original record | To RHC. X227 Hs/Gry.19/KW.13.8.35. Bentley Frame Tests. We very much want to try the Cadillac type cross for the Bentley shown on your Ex.19490. Will you please make up one of these and fit it to the… | ||
| scan0207 | Modification to the cross-member in a Bentley frame to test for improved stiffness. | ||
| View original record | X22Y To RHC. Hs/FJH.10/KW.16.9.35. Cross in Bentley Frame behind Gearbox. On the above cross which you are at present making, the upper plate forming the arch for the propellor shaft is arched to… | ||
| scan0208 | Requesting comparative tests on Bentley frame side members, evaluating boxing versus Daimler-style cross-bracing. | ||
| View original record | RHC. X227 Hs/Gry.8/KW.18.9.35. Bentley Frame Tests. We want to try the relative merits of boxing in the side member, and the Daimler type of cross bracing. We send you a sketch of the latter marked up… | ||
| scan0209 | Chassis torsion test results for a Bentley chassis. | ||
| View original record | +227 Hs/AFM.25/KW.20.9.35. Chassis Torsion Tests. BENTLEY CHASSIS WITH LONG REAR CROSS | Torque | Front Cross Member | Front Axle | C/L of Dashboard | 2nd Body Bracket | 3rd Body Bracket | Rear Axle |… | ||
| scan0210 | Outlining proposed modifications for a stiffened chassis frame on a Big Bore Bentley. | ||
| View original record | To RHC. +227 HS/AFM.1/KW.9.11.35. Stiffened Chassis Frame for Big Bore Bentley. We have been carrying out experiments on our vibrator rig to determine in what manner it is desirable to stiffen our… | ||
| scan0211 | Experiments to prevent column shake in the Bentley frame by boxing it in. | ||
| View original record | To E. from Hs/Rm. X227M Hs/Rm.14/KW.12.12.35. Bentley Frame. We have been carrying out simple experiments to see whether there is any modification we can make to the existing Bentley frame to prevent… | ||
| scan0212 | The completion and assembly of a stiffened chassis frame for a Big Bore Bentley. | ||
| View original record | x227 To RHC. Hs/AFM.1/KWS.1.35. Stiffened Chassis Frame for Big Bore Bentley. We are pleased to see that the welding of this frame is now finished. To complete the job we would like this frame fitted… | ||
| scan0213 | Proposal to test the effect of a stiffer side member for the Bentley chassis frame. | ||
| View original record | To. DY. (crossed out) Copy to Mr. Hs/Rm. (crossed out) x227 E/EV.1/MIN.26.3.36. MARTINDALE Bentley Chassis Frame. SEE ME It is desired to try the effect of a side member of greater bending stiffness… | ||
| scan0214 | The proposed stiffening of a Bentley frame for test purposes. | ||
| View original record | Hs/Rm. c. E. EV. DY. x 227 GRY AFM Da.3/HP.14.5.36. Bentley Frame. Referring to the proposed stiffening of the Bentley side channels by adding 2" to their depth, we sent through a scheme, LeC.5054… | ||
| scan0215 | Chassis and body torsion test results for a Bentley 5-B-IV with a stiffened frame. | ||
| View original record | X227 18th May, 1936. Chassis and Body Torsion Tests. Bentley 5-B-IV with stiffened frame (as first built) Figures include Hysteresis. | Torque lbs/ins. | Front Cross Member | C/L of Dash | 2nd Body… | ||
| scan0216 | The Bentley frame's obsolescence and the development of a stiffened chassis to cure faults. | ||
| View original record | FILES. x227 16th June, 1936. Bentley Frame. The Bentley car produced over two years ago is already obsolescent, particularly as regards ride and engine roughness, and as Wraith will take up most of… | ||
| scan0217 | Technical memorandum comparing vehicle body stiffness, vibration, and ride comfort between different models. | ||
| View original record | -2- show that 5-B-IV with its relatively weak body is twice as stiff as B-56-BN with its more rigid all steel body. It is important to note that stiffening the weak front end stiffens the whole car… | ||
| scan0218 | Graph showing the results of chassis and body torsion tests under various loads and configurations. | ||
| View original record | DEGREES TWIST 6 5 4 3 2 1 0 CHASSIS & BODY TORSION TESTS B.56 B.N. STEEL BODY FRONT OF CAR ON A ROLLER REAR OF CAR HELD RIGIDLY LEGEND: - STANDARD CAR WINGS & RUNNING BOARDS - DISCONTINUOUS DASH… | ||
| scan0219 | Graph showing the results of chassis and body torsion tests for a Bentley 5 B IV with a stiffened frame. | ||
| View original record | CHASSIS & BODY TORSION TESTS BENTLEY 5 B IV WITH STIFFENED FRAME (AS FIRST BUILT) FRONT OF CAR ON A ROLLER. REAR OF CAR HELD RIGIDLY. COMPARE WITH GRAPHS C, D & G. THESE FIGURES INCLUDE HYSTERESIS… | ||
| scan0220 | Graph showing chassis and body torsion test results for a Bentley frame. | ||
| View original record | CHASSIS & BODY TORSION TESTS BENTLEY FRAME WITH FRONT CROSS & BODY OFF 5 B IV WITH LONG REAR CROSS WITHOUT " " " " WITHOUT HYSTERESIS DEGREES TWIST 6° 5° 4° 3° 2° 1° 0 38,250 LBS-INS 25,500 LBS-INS… | ||
| scan0221 | Graph plotting vibration amplitude against excitation frequency for various aircraft components. | ||
| View original record | RESEARCH LABORATORY AMPLITUDE D. 56BN VIBRATION AT R.A.W? AMPLITUDE INCHES Y-AXIS LABELS: 0.6, 0.4, 0.2, 0 LEFT SIDE NOTES: WINGS WORST VIBRATION IN 3RD ORDER CASE DOTTED LINES SHOW VIBRATION ON… | ||
| scan0222 | Confirming a request for information on side-way shake and shock dampers. | ||
| View original record | 227. Rm/Les. Rm6/R.25.11.36. Confirming our conversation, you will let me have the information so far obtained on side-way shake, and also let me know what it is proposed to do to measure this shake.… | ||
| scan0223 | Correspondence regarding feedback on the Bentley III chassis frame cross design from Rubery Owen. | ||
| View original record | SECRET. 227. To BY. Copy to Da. Rm. RHC. HPS. Rm/PLS. [Handwritten] Mr Hth Please see me CRJ Bentley III Chassis Frame. We send herewith a print of the Bentley III chassis frame - frame cross,… | ||
| scan0224 | The development of the Bentley III frame, comparing its weight and cost to the Wraith frame. | ||
| View original record | By. from Rm. c. Sg. c. Es. c. RHC. c. Da. c. Mx. 227 Rm9/R.25.10.37. BENTLEY FRAME. The attached report shows the work that has been done in developing the Bentley III frame. The Wraith frame weighs… | ||
| scan0225 | Report presenting the results of frame stiffness and torsion tests for various car models. | ||
| View original record | Rm. from Rm/Clapham. 25.10.37. REPORT ON FRAME STIFFNESS. RESULTS OF TORSION TESTS. Stiffness. lbs.ft./degree, Between Dash to Dash to wheel planes. rear wheels. Front wheels. 33-EX with body… | ||
| scan0226 | Table of stiffness measurements in lbs.ft/degree for various Bentley III frame configurations. | ||
| View original record | -2- BENTLEY III. 25.10.37. Stiffness. lbs.ft/degree Between Dash to Dash to wheel planes. rear wheels. front wheels. Frame No.1 - .128" thick bolted 1500 3000 3000 " with welded gussets 1700 3320 3670… | ||
| scan0227 | Comparative table of chassis dimensions for various car models. | ||
| View original record | -3- 25.10.37. TABLE OF COMPARATIVE DIMENSIONS. DIMENSIONS. P.III.WRAITH PACKARD OLDS. VAUXHALL G.M.FRAME B.III. Wheelbase 147" 141" 121" 117" 111" 122" 124" Dash to front wheels 43" 36" 35" 28" 26" -… | ||
| scan0228 | Vehicle frame design, comparing Wraith and B.III frames, riveting vs. welding, and chassis stiffness. | ||
| View original record | -4- The results obtained at Shardlow do not seem to have been very reliable, so the majority of them have been omitted. A few, however, are given where no comparative figures have been obtained.… | ||
| scan0229 | Typed note discussing modifications to a car frame to reduce weight and compare it to Bentley and Wraith models. | ||
| View original record | -5- 25.10.37. The strength will be more evenly distributed over the length of the frame, and the total weight will be slightly less, 250 lbs. The drilling projected on the original .104 Bentley III… | ||
| scan0230 | Graph showing the results of chassis and body torsion tests for an Oldsmobile Saloon with a Fisher body. | ||
| View original record | CHASSIS & BODY TORSION TESTS OLDSMOBILE SALOON FISHER BODY WITHOUT HYSTERESIS 35,000 LBS-INS PER DEGREE TWIST 15. JUNE 1937 O. 2. TWIST 5° 4° 3° 2° 1° 0 138,375 LBS-INS 123,000 LBS-INS 107,625 LBS-INS… | ||
| scan0231 | Graph of chassis and body torsion test results for a Wraith chassis. | ||
| View original record | CHASSIS & BODY TORSION TESTS WRAITH CHASSIS 26 G VI FRAME 0.128" THICK - WITH LARGE HOLES AND 0.010" THICKER CROSS WITH FRONT CROSS-CHANNEL WITHOUT HYSTERESIS 10,000 LBS INS PER DEGREE TWIST Top Axis:… | ||
| scan0232 | Graph showing chassis and body torsion tests on a Packard chassis with front wings. | ||
| View original record | CHASSIS & BODY TORSION TESTS. PACKARD CHASSIS. WITH FRONT WINGS. WITHOUT HYSTERESIS. 9,000 LBS-INS PER DEGREE TWIST. P 4 8th JUNE 1937. 14" 18.125" 12.5" 31.5" 25.125" 17.375" 18.75" 29.375" LBS-INS… | ||
| scan0233 | Graph and diagram illustrating the torsional twist characteristics of a welded Bentley III frame. | ||
| View original record | BENTLEY III FRAME .104" THICK. GUSSETS AND CENTRE OF CROSS WELDED. DEGREES TWIST 0.6 0.4 0.2 0 APPLIED TORQUE 8700 LBS INS. SCALE 1" = 2' 34.5" 89.5" FRONT WHEELS. DASH REAR WHEELS. | ||
| scan0234 | Photograph of a Bentley Mark III frame with welded gussets, showing its thickness and torsional rigidity. | ||
| View original record | BENTLEY. III. FRAME .128 THICK WELDED GUSSETS 1700 LBS. FT/DEGREE. | ||
| scan0235 | The torsional rigidity of a Bentley III frame with welded gussets. | ||
| View original record | Bentley III frame. welded gussets .128" thick. 1700 lbs. ft. / degree .104" thick. 1350 lbs. ft. / degree | ||
| scan0236 | Photograph of an all-welded Bentley B frame with a 12ft track. | ||
| View original record | BENTLEY B FRAME - 12' TRACK ALL WELDED DRAWING N.Y. 2684D | ||
| scan0237 | Specifications for a Bentley III all-welded frame, detailing torsional rigidity for different thicknesses. | ||
| View original record | Bentley III frame. all welded . 128" thick. 1750 lbs. ft. / degree . 104" thick 1420 lbs. ft. / degree | ||
| scan0239 | The torsional rigidity of an unwelded Bentley III frame at different thicknesses. | ||
| View original record | Bentley III frame, unwelded • .128" thick, 1450 lbs. ft./degree • .104" thick, 1150 lbs. ft./degree | ||
| scan0240 | Photograph of a lightened car chassis frame on a workshop floor. | ||
| View original record | C22 | ||
| scan0241 | Torsional stiffness measurements for a Bentley III frame with varying hole configurations. | ||
| View original record | Bentley III frame. .128" thick. With 2 plain holes in gussets and 0 holes in side members 1450 lbs. ft. / degree - 10 0 1400 - 10 6 1360 - 10 lipped 6 1400 | ||
| scan0242 | The production of Bentley rebound straps. | ||
| View original record | RY/NS. c. Rm. c. ROY/Les. c. Da/ID. 224. DA.6/G.3.5.39. BENTLEY. REBOUND STRAPS (F.CD.1099). Will you please produce the rebound straps FB.4598 in S/M. instead of S/N, to assist ROY/Les. in obtaining… | ||