Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Revised design for a sports clutch thrust arrangement. | ||
| View original record | X 212 E. FROM DA. DA1/M10.5.32. C. to SG. BY. HS. B.2. SPORTS CLUTCH. As indicated on a note on N. sch. 3472 we were not very pleased with the arrangement of the clutch thrust, and send herewith a… | ||
| scan0002 | Bensport multi-plate clutch, sending a new schedule and detailing modifications. | ||
| View original record | X212- BY. FROM DA. DAL/M11.6.32. C. to SG. WOR. HS. E. BENSPORT MULTI PLATE CLUTCH. Herewith we send N. sch. 3472. shewing the multi plate clutch for the above car. E. has already had a print of a… | ||
| scan0003 | Modification for an oil drain for the Bensport clutch spigot bearing. | ||
| View original record | X212 BY. FROM. DA. DA2/M17.6.32. X.4553 C. to SG.WOR. E. HS. BENSPORT CLUTCH. Herewith we send N.sch.3493 shewing a modification to the suggestion for providing an oil drain for the clutch spigot… | ||
| scan0004 | The Bensport clutch operation, referencing schemes for the arrangement of the clutch pedal. | ||
| View original record | BY. FROM DA. X212 DAL/M21.9.32. C. to SG. WOR. HS. E. BENSPORT CLUTCH OPERATION Herewith we send N. sch. 3545, shewing the arrangement of the clutch pedal, pedal suspension, and the interconnection… | ||
| scan0005 | Suggested revisions to the Bensport clutch and flywheel for the J.1. engine. | ||
| View original record | BY. } FROM DA. HS. } x 212 DA.1/M4.11.32. BENSPORT CLUTCH AND FLYWHEEL. Because of the increased torque to be expected from the J. 1. engine compared with the original Peregrine type engine, we have… | ||
| scan0006 | Modifications to the Bensport clutch operation for use with J.I. engines. | ||
| View original record | X212 BY. FROM DA. DA4/M16.11.32. C. to SG. WOR. HS. E. BENSPORT CLUTCH OPERATION. Herwith we send N. sch. 3587 shewing the modifications to the clutch operation called for by the use of the J.I.… | ||
| scan0007 | Proposed scheme for Bensport flywheel vibrations, involving a tail bearing and multi-plate clutch. | ||
| View original record | X 212 BY. FROM DA. DA3/M28.1.33. C. to SG. WOR. HS. E. X. 4553 X. 634 BENSPORT FLYWHEEL VIBRATIONS. As requested by Derby we have looked into the question of providing a tail bearing for the flywheel… | ||
| scan0008 | Modification to a 20/25 flywheel for the Bensport model to reduce inertia. | ||
| View original record | X 212- RHC. from Hs/Gry. Hs/Gry.11/KT. 8.2.33. BENSPORT FLYWHEEL. We send you herewith a modification to the std 20/25 flywheel G.54938. to reduce the inertia. The present inertia we find too much for… | ||
| scan0009 | Reducing flywheel inertia on a Bensport model by fitting a multiplate clutch. | ||
| View original record | X212. BY. from Hs/Gry. Hs/Gry. 2/KT. 22. 2. 33. BENSPORT CLUTCH. We have been trying to reduce the inertia of the 20/25 flywheel fitted to Bensport. We cannot get greater than a 30% reduction.… | ||
| scan0010 | Weight comparison between the standard and low inertia flywheels for the 20/25 model. | ||
| View original record | Bensport File X 212 To Hs/Gry. from RHC. RHC5/BEL.3.33. 20/25. Low Inertia Flywheel. We give below comparative weights of the standard flywheel and of the low inertia type flywheel fitted to C.10 Unit… | ||
| scan0011 | The Bensport clutch operation, proposing a modification to the levers to prevent engine rocking. | ||
| View original record | E. FROM DA. C. to HS. BY. X 212 DA1/M15.3.33. BENSPORT CLUTCH OPERATION. Referring to Lec.3401 - layout of the clutch and brake pedals - the comment we should like to make is that the direction of the… | ||
| scan0012 | Design and experimental production of a spring-driven clutch centre for Bensport. | ||
| View original record | X212. To BY. from E/JNR. E/JNR.1/HP.23.3.33. c.c. Wor. Hs. re Bensport. Please receive herewith: LeC.3418 - showing a design for the spring driven clutch centre. Will you please have this made for… | ||
| scan0013 | Increase in spring load for a multiplate clutch to achieve higher torque. | ||
| View original record | X 212. By. from Hs/Gry, Hs/Gry.5/KT.10.4.33. MULTIPLATE CLUTCH BENSPORT. With regard to the clutch to N.Sch.3575 that you are detailing for us, will you please arrange for the spring to allow a torque… | ||
| scan0014 | Querying the proposed use of a new design for the Bensport Spring Driven Clutch Centre. | ||
| View original record | X212. To Hs. from E. c. By. By/SS. E.11/HP.4.5.33. Bensport Spring Driven Clutch Centre. In connection with the above, we issued a design LeC.3418 on 23.3.33 to replace the mockup scheme of the… | ||
| scan0015 | Problem with loose Bentley flywheel bolts and proposing immediate and future modifications. | ||
| View original record | X212. To BY/from E/JNR. E/JNR.6/HP.16.6.33. c. Hs. RHC. re Bentley Flywheel Bolts. The reported trouble in which the flywheel became loose on the crankshaft whilst being tested at Brooklands we think… | ||
| scan0016 | Loose clutch trunnion thrust race nut on a Bentley and recommending a more positive locking device. | ||
| View original record | 8212. To E. from Hs/Rm. Hs/Rm.17/KT.27.6.33. CLUTCH TRUNNION THRUST RACE NUT - BENTLEY. When the second flywheel became loose on the 3rd. Bentley, we found that the nut retaining the ball race had… | ||
| scan0017 | New scheme for the 3.5 litre Bentley crankshaft and flywheel to prevent them from coming loose. | ||
| View original record | X212. To Hs. from E. c. Sg. Wor. By. Sft. RHC. E.1/HP.30.6.33. Bentley Crankshaft and Flywheel. To overcome the difficulty experienced with the flywheel coming loose on the 3½ litre Bentley… | ||
| scan0018 | Modification to the Bentley flywheel and crankshaft using a new drawing. | ||
| View original record | To BY. from E/JNR. X212 E/JNR.5/HP.1.7.33. c. Hs. Sft. RHC. re Bentley Flywheel and Crankshaft. Please receive herewith drawing LeC.3549 showing the flywheel modified to use up the 15 crankshafts… | ||
| scan0019 | The operation and layout of a plate clutch in a Bensport car, referencing related drawings. | ||
| View original record | X212 To BY. from Da. c. Wor. E. Hs. Da.1/HP.3.7.33. Plate Clutch in Bensport. With reference to the operation of the plate clutch fitted to a Bensport car, shown on N. Sch.3575, we have prepared a… | ||
| scan0020 | Request to manufacture one locking ring for a Bentley clutch withdrawal housing, as per blueprint LeC.3554. | ||
| View original record | To RHC. from E/JNR. E/JNR.7/HP.4.7.33. c. Hs. Bentley Clutch Withdrawal Housing. We send you herewith blueprint LeC.3554 showing a locking ring for the clutch thrust housing. Will you please as soon… | ||
| scan0021 | Bentley Flywheel Fixing issue, potential crankshaft breakages, and proposed modifications. | ||
| View original record | X 212 To WCH. from E. E.1/HP.5.7.33. c. Hs. By. Sft. RHC. re Bentley Flywheel Fixing. Referring to Sg.11/E.4.7.33, the flywheel coming loose has probably prevented crankshafts being broken under the… | ||
| scan0022 | Locking device for a clutch trunnion ball race. | ||
| View original record | X212 To E. from Hs/Rm. Hs/Rm.5/KT.7.7.33. LOCKING DEVICE FOR CLUTCH TRUNNION BALL RACE. We presume you saw G.72, the original locking device,of nut, before issuing your new design. Hs/Rm. | ||
| scan0023 | Recommendation on the production setting for the Bentley clutch spring drive damping load. | ||
| View original record | X212. To By. from Hs/Gry. c. to Mx. Hs/Gry.1/KT.11.7.33. BENTLEY CLUTCH SPRING DRIVE. The damping load called for on the LeC. of this is 50 lbs.ft. We have, however, set all experimental spring drives… | ||
| scan0024 | Modifications for the 3 1/2 Litre Bentley clutch pit ventilation system. | ||
| View original record | X 212 To By. from Hs/Lid. c. to E. Hs/Lid.8/KT.13.7.33. 3 1/2 LITRE BENTLEY CLUTCH PIT VENTILATION. In order to prevent engine oil from leaking into the clutch pit via the rear bearing it is necessary… | ||
| scan0025 | Confirming satisfaction with the improved Bentley flywheel fixing and its use for another 50 crankshafts. | ||
| View original record | To Sft. from E. Sg. [struck through] c. WOF. Hs. Bv. Mx. Bentley Flywheel Fixing. This is to confirm our conversation re the above, that we are so far satisfied with the improved flywheel fixing that… | ||
| scan0026 | Withdrawing a previous instruction regarding the Bentley flywheel fixing, pending the result of a 10,000-mile test. | ||
| View original record | To Sft. from E. c. Wor. Hs. Dy. Mx. E.2/HP.24.7.33. Bentley Flywheel Fixing ----------------------- Please note we wish to withdraw memo E.1/HP.21.7.33. The use of the revised flywheel fixing must… | ||
| scan0027 | Loose flywheel on a 3.5 Litre Bentley engine during unit testing. | ||
| View original record | Hs E Dy Wor X212. from Mx. Mx1/T31.7.33. 3 1/2 Litre Bentley - Flywheel. We have had a Flywheel develop loose during the running of an engine on the Unit Test Bed. We found all the nuts on the bolts… | ||
| scan0028 | Issues with the 3½ litre Bentley's flywheel fixing and slipper drive centre. | ||
| View original record | To Mr. from E. X212 c. Mr. Hs.Ey. E.G/HP.31.7.33. re 3½ litre Bentley. Referring to your memo Mx.1/T.31.7.33, we are definitely not satisfied with the scheme of locking nuts by centre punch on the… | ||
| scan0029 | Proposed method for locking flywheel bolts on a 3 1/2 litre Bentley. | ||
| View original record | X212, To Sft. from E. c. Wor. Hs. By. RHC. E.4/HP.1.8.33. 3 1/2 litre Bentley Locking of Flywheel Bolts. Referring to our conversation concerning your suggested method of dealing with the locking… | ||
| scan0030 | Blueprint showing the locking of flywheel bolts for a 3 1/2 Litre Bentley. | ||
| View original record | LEC 3590 NOTE :- LENGTH OF BOLT & LARGE DIAM. OF TAPER DRILLING SHOULD BE KEPT TO CLOSE LIMITS IN ORDER TO ENSURE CONSISTANT RESULTS. VIEW OF BOLT END BEFORE ROLLING SCALE 2/1 MODIFIES LEC 3549… | ||
| scan0031 | Flywheel issue on a 3 1/2 Litre Bentley. | ||
| View original record | X212. To Mx. from Hs/Rm. c. E. By. c. Wor. Hs/Rm.17/KT.3.8.33. 3 1/2 LITRE BENTLEY - FLYWHEEL. With reference to Mx.1/T31.7.33, we think that this is a difference case to those which we have… | ||
| scan0032 | Confirming a modification to the flywheel fixing on an experimental Bentley engine. | ||
| View original record | To Hs/Rm. from E. c. Wor. By X212. E.4/HP.24.8.33. Bentley Flywheel Fixing. This is to confirm that you will arrange to fit a new crankshaft on the experimental Bentley engine with lead bronze… | ||
| scan0033 | Whistling noise from the Bentley Flywheel, proposing a modification to increase clearance. | ||
| View original record | To BY. from E/JNR. X21✓ [handwritten] E/JNR.3/HP.1.9.33. c. Wcr. Hs. SFC. NHC. [crossed out] Bentley Flywheel. It is thought that the whistling noise complained of is caused by the small side… | ||
| scan0034 | Instruction regarding an experimental cure for a whistling flywheel on a Bentley by increasing side clearance. | ||
| View original record | GRY. Instructed for B5 unit going in green car. Confirm it has been done & check result on road. X212 To Hs/Rm. from E/JNR. A/JNR.17HP 4.9.33. re Bentley Whistling Flywheel. We send you herewith… | ||
| scan0035 | Detail drawings for the Bentley multi-plate clutch to test flywheel period. | ||
| View original record | X212 To By. from Hs/Gry: Hs/Gry.7/KT.6.9.33. BENTLEY CLUTCH. This is to ask you to urge forward the detail drawings of the multi-plate clutch. We understand the arrangement drawing is now finished and… | ||
| scan0036 | The testing of new Bentley clutch spring drives, detailing driving and damping loads. | ||
| View original record | X 2-12 To MX. From Hs/Gry. Hs/Gry.7/KT.19.9.33. BENTLEY CLUTCH SPRING DRIVE We have just tested two new clutch spring drives for driving and damping loads. The loads were almost exactly the same for… | ||
| scan0037 | Modification to the Bentley clutch spring drive to eliminate rattles and requesting new springs. | ||
| View original record | X212 To RHC. from Hs/Gry. c. BY/SS. Hs/Gry.S/KT.6.10.33. CLUTCH SPRING DRIVE - BENTLEY. We have found a better setting as regards elimination of rattles by leaving out four (out of 16) of the driving… | ||
| scan0038 | New clutch spring (GB.534X) for the 3.5 Litre Bentley, requesting a drawing be made for record purposes. | ||
| View original record | c. Hs/Gry. BY/SS8/N.10.10.33. Re: 3½ Litre Bentley - Clutch Spring Drive. G712473 We attach hereto copy of memo Hs/Gry.8/KT.6.10.33, dealing with the driving springs on the Clutch Spring Drive unit.… | ||
| scan0039 | Query regarding the required distance piece for Bentley clutch damping springs. | ||
| View original record | X212 To RHC. from Hs/Gry. Hs/Gry.9/KT.12.10.33. BENTLEY CLUTCH SPRING DRIVE. Will you please let us know what distance piece is required in the damping springs such that all 12 damping springs… | ||
| scan0040 | Oil leak into the clutch pit of a Bentley B.6 unit and the fitting of an oil retaining device. | ||
| View original record | X212 To RHC. from Hs/Std. Hs/Std.2/KT.17.10.33. BENTLEY - OIL LEAKING INTO CLUTCH PIT. We wish to have B.6 unit fitted with an oil retaining device similar to LeC.3568. Will you please make the… | ||
| scan0041 | Request for the manufacture of three sets of distance pieces for a Bentley clutch spring drive. | ||
| View original record | X212 To RHC. from Hs/Gry. Hs/Gry.5/KT.19.10.33. CLUTCH SPRING DRIVE - BENTLEY. Will you please make us three sets of distance pieces to GB.356 having lengths of .670", .680" and .690". We require… | ||
| scan0042 | Required driving and damping loads for a Bentley clutch spring drive to eliminate overrun rattles. | ||
| View original record | To By. from Hs/Gry: Hs/Gry.7/KT.20.10.33. CLUTCH SPRING DRIVE - BENTLEY. We have now decided on the driving and damping loads we require to eliminate overrun rattles. The loads should be - Driving 120… | ||
| scan0043 | Incorrect load issue with Bentley clutch spring drives and a proposed interim solution. | ||
| View original record | X212 To RHC. from Hs/Gry. Hs/Gry.4/KT.23.10.33. CLUTCH SPRING DRIVE - BENTLEY. We attach a copy of a note we have sent to By. about the setting of the spring drive. Will you please see that all… | ||
| scan0044 | Requesting to increase the flexibility of the Bentley flywheel by manufacturing two new flanges. | ||
| View original record | X212. To RHC. from Hs/Gry. Hs/Gry.6/KT.24.10.33. BENTLEY FLYWHEEL. We want to increase the flexibility of the Bentley flywheel and send you herewith Hs.1184 shewing a flange .085" thick. Will you… | ||
| scan0045 | Blueprint of a flywheel ball bearing housing with key dimensions. | ||
| View original record | HS 1184 6.750 DIA 4.300 DIA .400 .200 Rd .400 Rd OTHER DIMENSIONS TO GB 747 BALL BEARING HOUSING - FLYWHEEL - BEN: | ||
| scan0046 | The increasing damping load on Bentley clutch spring drives and the proposal to run them in on a rig. | ||
| View original record | X212 To RHC. from Hs/Gry. Hs/Gry.16/KT.1.11.33. CLUTCH SPRING DRIVE - BENTLEY. We find that the damping load increases on these spring drives after running in an engine due presumably to the friction… | ||
| scan0047 | To revise the damping load setting for the clutch spring drive on Bentley & 20/25 models. | ||
| View original record | x212 To By. from Hs/Gry. C. Hy. c. Hd. EP. Hs/Gry.6/KT.14.11.33. CLUTCH SPRING DRIVE - BENTLEY & 20/25. We wish to revise the setting of the damping load on production spring drives as we find that… | ||
| scan0048 | Use of a disc flywheel and Borg & Beck clutch on a Bentley, outlining necessary modifications. | ||
| View original record | X21 To RHC. from Hs/Gry. Hs/Gry:7/KT.20.11.33. BENTLEY FLYWHEEL. We do not think we should be worried by flywheel vibrations if we use a disc flywheel common to most American cars. We find we can try… | ||
| scan0049 | Requesting the history and cause of failure for a clutch from a Bentley trials car. | ||
| View original record | To Mx. from Hs/Gry. XXXXXXXXXXX Hs/Gry.8/KT.4.12.33. CLUTCH OFF BENTLEY TRIALS CAR. Will you please let us have the history of the clutch you handed to us for inspection this morning. We want to know… | ||
| scan0050 | Requesting the history of a faulty clutch from a Bentley trials car for inspection. | ||
| View original record | K212 To Mx. from Hs/Gry. xxxxxxxxxx Hs/Gry.8/KT.4.12.33. CLUTCH OFF BENTLEY TRIALS CAR. Will you please let us have the history of the clutch you handed to us for inspection this morning. We want to… | ||
| scan0051 | Recommendation on the damping load setting for the Bentley clutch spring drive to prevent rattle. | ||
| View original record | X212 To By: from Hs/Gry. c. to Mx. Hs/Gry.7/KT.4:12:33: BENTLEY CLUTCH SPRING DRIVE. We understand that works are fitting up some of these with the damping load as high as 30 lbs.ft. Mx. has reported… | ||
| scan0052 | Directive regarding a change in the clutch spring drive damping load for the Bentley chassis. | ||
| View original record | Hs. c. Mx Y212 BY/Cgh.8/G.6.12.33. BENTLEY CHASSIS - CLUTCH SPRING DRIVE. ------------------------------------ With reference to Hs/Gry.7/KT.4.12.33. on the first 15 chassis the damping load was 30… | ||
| scan0053 | Material change and lightening modification for a Bentley Clutch pressure member. | ||
| View original record | [Handwritten Signature] To E. from Da. c. Hs. Bentley Clutch. ---------------- Pressure Member. ---------------- Referring to the Pressure Member in N.C.I. which broke on production, we wish to try… | ||
| scan0054 | Failure of a Bentley clutch pressure member and proposals for material improvements. | ||
| View original record | To BY. from E. c. Wor. Hs. Sft. Da. Hl. re Bentley Clutch Pressure Member. Referring to the above piece which broke, we understand that this occurred on a production chassis. We believe the state of… | ||
| scan0055 | Material changes for experimental rings, comparing mild steel, nickel steel and aluminium bronze. | ||
| View original record | - 2 - E.1/HP.7.12.33. ------------ additionally the change in material makes for a much more satisfactory rivetting job. Experimental rings are being instructed in both mild steel and nickel steel so… | ||
| scan0056 | Burst cast iron Bentley clutch pressure plate and a request to trial steel replacements. | ||
| View original record | X212 To RHC. from Hs/Gry. Hs/Gry.13/KT.8.12.33. BENTLEY CLUTCH PRESSURE PLATES. One of these pressure plates made in cast iron has burst on a production car. E. wants us to try steel forgings in order… | ||
| scan0057 | Rapid wear on Bentley and 20/25 clutch linings due to incorrectly chamfered friction plates. | ||
| View original record | To Hd. from He/Gry. c. to Dx. By. Sft. X212 File Hs/Gry.13/KW19.12.33. Clutches - Bentley and 20/25. ---------------------------- We have experienced rapid wear on several Bentley Clutch linings due… | ||
| scan0058 | Requesting an alteration to drawings for forged steel pressure plates, specifying that splines should be hobbed, not ground. | ||
| View original record | To By. from Hs/Gry. X212. c. to E. c. to Dn. c. to Sft. Hs/Gry.19/KW27.12.33. Clutch Pressure Plates. -------------------- We notice that the details of the forged steel pressure plates to N.Sch.3900… | ||
| scan0059 | Clutch pedal rattle on the 10,000-mile Bentley car, identifying the spherical mounting as the cause and requesting a new design. | ||
| View original record | To E. from Ha/GWH. C. to Da. C. to By. X 453 or X 212 Ha/GWH.10/KWB.1.34. Re: Bentley. -------------- The spherical mounting for the clutch pedal was not a success on the last 10,000 mile Car. It… | ||
| scan0060 | Letter from Ferodo Limited discussing test results and performance characteristics of metallic (RAD.5) versus non-metallic (RAD.13) clutch discs. | ||
| View original record | All Communications to be addressed to the Company. FERODO LIMITED TELEPHONE: 19 CHAPEL-EN-LE-FRITH (4 LINES) TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH. FERODO REGD TRADE MARK BRAKE & CLUTCH… | ||
| scan0061 | Method and standard for locking Bentley flywheel nuts. | ||
| View original record | To Sft. from Hs/Gry. c. to E. c. to By. x212 Hs/Gry.8/KW9.1.34. Bentley. Locking of Flywheel Nuts. ----------------------- With regard to the method of locking the flywheel nuts submitted to us, we do… | ||
| scan0062 | Examination of a driving disc and friction material from a Bentley Trials Car. | ||
| View original record | [Handwritten] GRX see me X212 Hs. from Mx Mx14/T12.1.34. BENTLEY CLUTCHES I am sending for your examination the Driving Disc and Friction Material taken from Trials Car B.7.AE. This is the third of… | ||
| scan0063 | Letter from Ferodo Limited enclosing a sample clutch disc for testing in a servo motor. | ||
| View original record | All Communications to be addressed to the Company FERODO LIMITED TELEPHONE: 19 CHAPEL-EN-LE-FRITH (4 Lines) TELEGRAMS: FRICTION, PHONE, CHAPEL-EN-LE-FRITH. FERODO BRAKE & CLUTCH LININGS CODES: WESTERN… | ||
| scan0064 | Fitting an external adjustment for the clutch on Bentley models. | ||
| View original record | To RHC. from Hs/GWH. X212 Hs/GWH.10/KW.22.1.34. Bentley. External Adjustment for Clutch. Will you please fit N.Sch.3954, external adjustment for clutch, to 2-B-IV and 4-B-IV. Hs/G.W.Hancock. | ||
| scan0065 | Reluctance to introduce a new method for locking flywheel nuts without further testing. | ||
| View original record | [Handwritten] GRY See me Hs Hs. Sft. [crossed out] F. [crossed out] X 212? [Typed] BY.9/G.23.1.34. LOCKING OF FLYWHEEL NUTS. Referring to Hs/Gry.8/KW.9.1.34. we are somewhat reluctant to introduce a… | ||
| scan0066 | Differences between American and English vehicle design, specifically concerning clutches and gearboxes. | ||
| View original record | COPY. X212 W/S. To Sg. from E. c. to Wor. Hs. E.8/HP.24.2.34. Re. Clutches. Replying to your memo. Sg.4/E.21.2.34, We are analysing the American experience very carefully, and as it will not be long… | ||
| scan0067 | New clutch adjustment method via the outside pedal connecting rod for future production cars. | ||
| View original record | X 2/2 To Hd. Hs/GWH.7/KW.12.3.34. Clutch Adjustment. Reference: BY.9/C.7.3.34. On all future production Cars, Phantom, 25 HP, Bentley, arrangements are being made to adjust the clutch by the outside… | ||
| scan0068 | Destruction tests for a Bentley clutch to address rapid wear on production cars. | ||
| View original record | RHC. X212 Hs/Gry.12/KW.14.3.34. BENTLEY CLUTCH. We want to carry out some destruction tests on a Clutch with the fabric on the driven member. G.55792 should be in cast-iron, have the tip removed as… | ||
| scan0069 | Inspection of a driving disc and friction material from a Bentley clutch after trials. | ||
| View original record | x212 Hs. from Mx. Mx/Sknl/M.14.3.34. re: Bentley Clutch. -------------------- We send you herewith for your inspection the driving disc and friction material taken from chassis No. B-17-AE. Pass &… | ||
| scan0070 | Directive to alter the clutch pressure plate design for Bentley and 20/25 HP chassis to prevent cracking. | ||
| View original record | X212 COPY. BY/TWD. c. Sft. c. Mx. c. Hs. BY.10/G.23.3.34. BENTLEY AND 20/25 HP. CHASSIS - CLUTCH. In view of the fact that we are still getting odd cases of clutch pressure plates cracking on the… | ||
| scan0071 | Endurance tests on 20/25 and Bentley clutches, requesting the removal of crankshaft balance weights. | ||
| View original record | To RHC/HPS. X 212 Hs/FJH.5/KW.27.3.34. 20/25 and Bentley Clutch Tests. We want to carry out endurance tests on Clutches made to NS.3866 and EX.13800 on Unit No. C.X. For the above tests we require to… | ||
| scan0072 | Requesting the production of additional clutch components for destruction and test bed tests. | ||
| View original record | To RHC. X 212 Hs/Gry.12/KW. 7.4.34. We have already asked you to make us a further clutch to EX.12846, with driving plate to EX.12865, for 5-B-IV. We should now like two more, one for 1-B-IV and one… | ||
| scan0073 | Standardisation report for a Nickel Steel clutch pressure ring to overcome cracking. | ||
| View original record | RR 7558M (SH) (S7312, 29-12-33) BM. 3/640/2 COMPLETED 10.4.34. BENTLEY STANDARDISATION of PARTS. Date 28.3.34 X No. 212. Drawing No. GB. 1057. Part List Description of Parts. PRESSURE RING IN CLUTCH… | ||
| scan0074 | Two customer complaints regarding clutch judder or transmission rattle on Bentley chassis. | ||
| View original record | COPY S. To W. RE: BENTLEY CHASSIS, CLUTCH, GEARBOX OR TRANSMISSION RATTLE. ------------------------------------- C. has asked me to obtain your views in connection with two complaints which we have… | ||
| scan0075 | Customer complaints regarding Bentley chassis clutch, gearbox, or transmission rattle. | ||
| View original record | Hs/Rm c.c. Wer E. DI EP4/MH.27.4.34 re BENTLEY CHASSIS - CLUTCH GEAR BOX OR TRANSMISSION RATTLE ----------------------------------------- With reference to my discussion with you on the above, and the… | ||
| scan0076 | Complaints about clutch, gearbox, or transmission rattle on the Bentley Chassis. | ||
| View original record | X212 H/S - II. c. to Wor. c. to E. c. to By. Ha/Rm.15/KW.1.5.34. Re, Bentley Chassis - Clutch, Gearbox or Transmission Rattle. We appreciate the complaints mentioned in H5/H.26.4.34. At the moment we… | ||
| scan0077 | Experimental department report on clutches for 20/25 and Bentley models. | ||
| View original record | X212 EXPERIMENTAL DEPARTMENT REPORT REFERENCE :- Hs/Gry.5/KW.23.5.34. Hs/FJH.20/KW.3.5.34. Subject of Report :- Clutches - 20/25 & Bentley. General Conclusions :- That the new Clutch to N.Sch.3948 is… | ||
| scan0078 | Clutch destruction tests, wear rates, and performance issues for 20/25 and Bentley models. | ||
| View original record | CLUTCHES - 20/25 & BENTLEY. In the attached report on Clutch destruction tests carried out on the test bed the rate of wear of various types of linings fitted to the standard clutch is compared with… | ||
| scan0079 | Experiments with flexible engine mountings and their effect on clutch operation, causing 'jaggering'. | ||
| View original record | -2- Hs/Gry.E/KW. 23.5.34. During our experiments with flexible engine mountings we have run into clutch jagger because of the engine movement affecting the geometry of the clutch operation. This has… | ||
| scan0080 | Methodology and results of clutch tests for 20/25 and Bentley models. | ||
| View original record | Ha/PJH.20/KW.3.5.34. 20/25 AND BENTLEY CLUTCH TESTS. We have recently carried out tests on the test bed on the new type of 20/25 HP. clutch to N.Sch.3948 and G.56674, to determine the rate of lining… | ||
| scan0081 | The comparative performance tests of different types of clutch linings. | ||
| View original record | -2- Hs/FJH.20/KW.3.5.34. The tests of various types of lining on the standard clutch show that RAD.11 are the best all round of the bonded linings and that any form of treatment reduces the life of… | ||
| scan0082 | Results of wear tests on various clutch linings for a 25 HP & Bentley clutch. | ||
| View original record | -3- HS/FHH. 20/KW. 3. 5. 34. Clutch Lining Wear Tests - 25 HP. & Bentley. Type of lining. Wear due to 260 2000-3000 r.p.m. slips. Additional slips 500-3000 to produce total wear of 0.100". Remarks.… | ||
| scan0083 | Test report table on the performance of different clutch lining materials under various heat and slip conditions. | ||
| View original record | -4- RB/FJH.20/KW. 3.5.54. | Type of lining | Wear due to 260 2000-3000 r.p.m. slips. | Additional slips 500-3000 to produce total wear of 0.100" | Remarks. | | :--- | :--- | :--- | :--- | | RAD.11 2… | ||
| scan0084 | Comparative test report on different types of clutch lining materials and their performance. | ||
| View original record | -5- HS/FJH.20/KW, 3.5.34. Type of lining Wear due to 260 2000-3000 r.p.m. slips. Additional slips 500-3000 to produce total wear of 0.100" Remarks. New Type of Clutch to N.Sch.3948. RAD.11 chemically… | ||
| scan0085 | Blueprint detailing the modification of an existing flywheel S6671. | ||
| View original record | [ "GRIMES INSTRUCTION 1 to 37", "Ex 14076", ".075 R", "-lo", "1.25 R", "5/8", "3.25 R", "4.675 DIA", "7.800 DIA INT.", "MODIFY EXISTING FLYWHEEL @ S6671", "MODIFn TO S6671 FLYWHEEL", "ROLLS-ROYCE,… | ||
| scan0086 | Clutch issue and ordering a thicker centre plate with increased cushioning for car 1-B-IV. | ||
| View original record | +212 RHC. Hs/Gry.10/KW.26.5.34. Clutch for 1-B-IV. The altered type pedal operation for this car has had no effect on the clutch jaggers when getting away in 2nd gear. We therefore want to try a… | ||
| scan0087 | Need to fit a standard clutch to car EX.13800 as a replacement. | ||
| View original record | RHC. x 212 Hs/Rn.18/KW.28.5.34. Unit for 4-B-IV now running 10,000 miles. Further to Hs/Rn.4/KW.23.5.34. Since Hancock has now smashed his unit it is obvious that we cannot wait for the new clutch to… | ||
| scan0088 | Requesting to fit a new, lightened 20/25 clutch with reduced inertia to a B-7 unit for a 10,000-mile Bentley test. | ||
| View original record | X212 To RHC. Hs/Gry.7/KW.1.6.34. Clutch for 10,000 miles Bentley. We do not want to run a standard clutch another 10,000 miles. We should like to run the new 20/25 clutch but reduced in inertia. Will… | ||
| scan0089 | New clutch for a 10,000-mile Bentley test vehicle. | ||
| View original record | RHC. X212 Hs/Rm.10/KW.4.6.34. Clutch for 10,000 Miles Bentley. You will remember that we wished to get N.Sch.3948 clutch fitted to B-7 unit for a 10,000 miles test, but it appeared that this would not… | ||
| scan0090 | Visits to Morris and Rover to investigate the use of cork clutch linings and flexible engine mountings. | ||
| View original record | To Wor. To E. C. to Ly. C. to Ds. C. to EV. +212 Clutch Trouble and Flexible Engine Mounting. In view of our present difficulties on clutches we visited Coventry and Birmingham to find out what we… | ||
| scan0091 | Experimental Rover cars, discussing their dashboard, Spontan gear, Hayes transmission, and coachwork, with a diagram of the clutch operation. | ||
| View original record | -2- Captain Wilkes took us all round their Experimental shop and showed us their 1935 cars, one of which was fitted with a body which had several novel features. In particular, the dashboard was made… | ||
| scan0092 | List of particulars for a Morris cork clutch. | ||
| View original record | HB/Gry.13/KW.14.6.34. Particulars of Cork Clutch - Morris. (1) Working coefficient of friction .192 (2) Unit pressure 19 lbs/sq.in. (3) Driven member dural .125 thick. (4) Pressure plate .4 carbon… | ||
| scan0093 | Instruction for detailing the new 20/25 clutch (N.Sch.3948) for the Bentley chassis. | ||
| View original record | x212 To By. Hs/Gry.2/KW.20.6.34. New 20/25 Clutch, N.Sch.3948, for Bentley. When you are detailing this clutch for the Bentley chassis will you please instruct the lightened flywheel as shown on… | ||
| scan0094 | Requested modifications for a clutch assembly undergoing a 10,000-mile test. | ||
| View original record | X212 RHC. Hs/Gry.6/KW.27.6.34. Clutch for B-7 Unit 4-B-IV. 10,000 Miles Test. Rm. has already asked for a light flywheel to Hs.1416. In addition we should like a staggered plate of .015 set, the… | ||
| scan0095 | Fitting of a Borg & Beck type clutch centre to a B-10 Unit. | ||
| View original record | X 212 To RHC. Hs/Gry. 21/KW. 2. 7. 34. Clutch for B-10 Unit. We should like to fit in this Clutch the Rolls-Royce Borg & Beck type centre which you made some time ago to EX. Hs/Gry. | ||
| scan0096 | Outlining the requirements for fitting a Terraplane clutch to a Bentley B-1 unit. | ||
| View original record | To RHC. X212 Hs/Gry.18/KW.2.7.34. Terraplane Clutch in Bentley B-1 Unit. We want to try a cork in oil clutch on the light flywheel unit and send you herewith Hs.1454 showing how this can be done. We… | ||
| scan0097 | Blueprint of a Terraplane 6 Cork Clutch for a Bentley. | ||
| View original record | HS 1454 TRACED FROM EA 12846 Ex 12850 SPECIAL NARROW 25 mm BEARING NEW PARTS REQUIRED TERRAPLANE 6 CORK CLUTCH FOR BENTLEY ROLLS-ROYCE PRINT ROOM 2 JUL 1934 DERBY | ||
| scan0098 | Five different clutch experiments. | ||
| View original record | X212 2.7.34. CLUTCH EXPERIMENTS. 21-G-IV - C.14. New clutch, thin flywheel, fabric on pressure planes, no movement of back plate, .025 set in driven member. RAD.11. 4-B-IV - B.7. New clutch, thin… | ||
| scan0099 | Modifying the external clutch adjustment scheme for a Bentley. | ||
| View original record | x212 To By. Hs/Gry.3/KW.17.7.34. External Clutch Adjustment - Bentley. We have issued a Standardisation Sheet for the 20/25 chassis to N.Sch.3866, GL.708. The only scheme for adjustment in existence… | ||
| scan0100 | Requesting a direct comparison of clutch life for a Bentley model. | ||
| View original record | <212 To RHL. c. to Gry. c. to FJM. Hs/Rn.21/KW.17.7.34. Clutch Life - Bentley. We want to get a direct comparison between the clutch life of the standard clutch and of the new clutch. to N.Sch.… | ||
| scan0101 | Modification to the Bentley Clutch flywheel cover to facilitate truing the withdrawal sleeve. | ||
| View original record | ✓212 To BY. from Da. c. WOT. E. Hs. Hdy. WHC. Sft. Da.5/HP.31.7.34. Bentley Clutch. Herewith are N. Sch's 4105/6 showing a modification to the flywheel cover to facilitate truing up the withdrawal… | ||
| scan0102 | Complaints of rattling Bentley clutches, identifying the cause as synchro-mesh dogs, and proposing modifications. | ||
| View original record | ✓212 To Wor. From Ha/Rm. c. to Sg. c. to R. c. to Dy. c. to Hdy. c. to En. c. to MX. COMPLAINTS ON BENTLEY CLUTCHES. You will remember that at a recent conference it was agreed that complaints of… | ||
| scan0103 | Complaints on Bentley clutches and questioning if improvements can be applied retrospectively to existing cars. | ||
| View original record | S/W....Hs/Rm c. to Wor. E. By. Hdy. Bn. Mk. ------ C18/C13.8.34 COMPLAINTS ON BENTLEY CLUTCHES. Hs/Rm1/MJ9.8.34 ------ I am very interested to note this improvement. I shall be glad to know whether it… | ||
| scan0104 | Complaints about Bentley clutches and a proposed modification to fix rattling gearbox parts. | ||
| View original record | X 2/2 W/S - C. c.c. to Nor. c.c. to E. c.c. to Ev. c.c. to Hly. c.c. to Rm. c.c. to Mx. Ha/Rm.18/ICL.27.8.34 Complaints on Bentley Clutches. Replying to C.18/C.12.8.34, the device to stop the rattling… | ||
| scan0105 | Standardisation of parts document concerning the bifurcated rivetting of clutch linings. | ||
| View original record | RR 755BN (SH) (S7312, 29-12-33) BM. 3/640/2 COMPLETED 21.8.34. BENTLEY STANDARDISATION of PARTS. Date: 11-7-34 (handwritten), 22.6.34 (printed) X No. 212. Drawing No. Part List Description of Parts.… | ||
| scan0106 | Report discussing the cost implications of a parts standardization initiative. | ||
| View original record | YELTAEB STANDARDISATION of PARTS X No alteration in tool cost. Could be brought in as soon as desired at scrap cost of rivets only. | ||
| scan0107 | Clutch rusting problem on 20/25 & Bentley models and the proposed solution of using a gun metal bush. | ||
| View original record | To RHC. X212 Hs/Gry.23/KW.28.8.34. 20/25 & Bentley Clutches. 21-G-IV in France has given trouble due to rusting of the 1st motion shaft preventing the clutch freeing in the morning. It has been… | ||
| scan0108 | Complaints on Bentley clutches and a request for modification costs. | ||
| View original record | S/W Hs/Rm. C18/C31.8.34 Re COMPLAINTS ON BENTLEY CLUTCHES. Hs/Rm18/KW27.8.34 --------- We have one or two customers who are awaiting any modification we may be able to make in respect of the clutch,… | ||
| scan0109 | Inquiry into the cost of retrospectively fitting scheme N.Sch.4095 to resolve customer complaints. | ||
| View original record | X2/2 G/Rb. Hs/Rm.10/KW.3.9.34. C. is anxious to know the cost of fitting N.Sch.4095 to a customer's car retrospectively. He has several cases of complaint which this scheme is likely to cure. Hs/Rm. | ||
| scan0110 | Response concerning a cost estimate for a changeover related to complaints about Bentley clutches. | ||
| View original record | W/S - C. from Hs/Rm. x212 Hs/Rm.3/KW.4.9.34. Complaints of Bentley Clutches. ------------------------- Replying to C18/C.31.8.34. We have asked the Accounts Dept. to let you have an estimate of what… | ||
| scan0111 | Cost estimate for fitting locating plungers to prevent rattles in Synchro Mesh on 20/25 HP and Bentley Chassis under Scheme 4095. | ||
| View original record | To O. from G/Rb. c. to Hs/Rm. G/Rb.7/M/1430/W.4934. N. Scheme 4095 - Locating plungers to prevent rattles in Synchro Mesh on 20/25 HP. and Bentley Chassis. We have been asked by Hs/Rm. to inform you… | ||
| scan0112 | Different clutch experiments and configurations. | ||
| View original record | x212 10.9.34. CLUTCH EXPERIMENTS. 21-G-IV - C.14. Rubber Mounting. New clutch, thin flywheel, fabric on pressure plates, no movement of back plate, .025 set in driven member, RAD.11, two links in… | ||
| scan0113 | Test results showing the deflection of a strengthened Bentley Slipper Flywheel Friction Plate under various loads. | ||
| View original record | +212 To E. Hs/WB.13/KW.12.9.34. Bentley Slipper Flywheel Friction Plate Lec.3304. Strengthened Plate E.59383. --------------------------------------- With the cotton duck friction ring replaced by a… | ||
| scan0114 | Graph showing the deflection at the centre of a strengthened Bentley-slipper flywheel friction plate under thrust load. | ||
| View original record | BENTLEY-SLIPPER FLYWHEEL FRICTION PLATE STRENGTHENED PLATE E59383 DEFLECTION AT CENTRE UNDER THRUST LOAD DEFLECTION - INS .001 .002 .003 .004 .005 .006 THRUST LOAD - LB 200 400 600 800 1000 1200… | ||
| scan0115 | Request to obtain an arrangement drawing and quotation from Borg & Beck for an 11' clutch. | ||
| View original record | Roy. X212 Hs/Gry.9/KW.13.9.34. Will you please try and obtain for us from Borg & Beck an arrangement drawing of their 11" clutch, and a quotation as to the price thereof, for a clutch to transmit 210… | ||
| scan0116 | Cost and priority of a conversion job for Captain Van Neck's car to prevent rattles in the Synchro Mesh. | ||
| View original record | Rm X212 S/W.......G/RD. copy to Hs/Rm. copy to Hd. C9/D12.9.34. Re: N.Scheme 4095. - Locating plungers to prevent rattles in Synchro Mesh on 20/25 h.p. and Bentley Chassis. G/Rb7/M/143C/W.4934. I note… | ||
| scan0117 | Modifications to the Bentley Clutch design, proposing a simplified version. | ||
| View original record | x212 To SY. from Da. c.c. Mr. H. Hs. Hdy. RHC. R GRY Any comments on this design? Rm Da.2/HP.17.9.34. Bentley Clutch. Herewith is N. Sch.4190 shewing the clutch having the fabric on the driven member,… | ||
| scan0118 | Request to prepare a disc type flywheel and clutch for a 4-bearing crankshaft, with modifications to the flywheel bore. | ||
| View original record | To RHC. x212 Hs/Gry.28/KW.3.10.34. Clutch for 4-Bearing Crankshaft. Will you please prepare a disc type flywheel and clutch for this crankshaft, to EX.15816. Slight modifications are needed to the… | ||
| scan0119 | Requesting a Mellenite flywheel with a starter ring for testing on a rig up to 5500 r.p.m. | ||
| View original record | x212 To RHC. Hs/Gry.8/KW.8.10.34. Disc Flywheels. While the rig on which we have been trying to burst a cast-iron pressure plate is still in existence we should like to run a Millenite flywheel up to… | ||
| scan0120 | Persistent issue of rattling Bentley clutches and recommending a standardized modification as a permanent solution. | ||
| View original record | W/S - C. from Ha/Rm. c. to Nor. c. to E. c. to Ey. c. to H. c. to Hd. X212 Ha/Rm.20/KW.12.10:34. Rattles on Engaging Bentley Clutch. You may remember that this was unanimously decided to be one of the… | ||
| scan0121 | Solution for gear lever rattles on a Bentley, involving an extra floating bush. | ||
| View original record | To Ey. and Hs. from HDY. HDY.IHP.12.10.34. c. Wor. E. Da. RHC. Gear Lever Rattles - Bentley. ----------------------------- N. Sch.4226 herewith shows a suggestion for diminishing the gear lever… | ||
| scan0122 | Experimental blueprint detailing modifications to a gear change bracket to stop rattles. | ||
| View original record | N SOH 4226 TEMPORARY OIL HOLE. THE CHASSIS LUBON SYSTEM MIGHT BE SUITABLE OUTER BUSH IS THE STD. PUSH FIT IN THE CASING. DIAMETRICAL CLEARANCE 4-5/1000" COUNTERBORE 10-20/1000 ON DIAMETER 5-10/1000… | ||
| scan0123 | Cure for rattles on the Bentley clutch and the policy for its application upon customer complaint. | ||
| View original record | S/W...Hs/Rm. c. to Wor E By H Hd. Rattles on Engaging Bentley Clutch. Hs/Rm20/KW12.10.34 I am very interested to note that you now have a cure for this trouble, which is certainly one of the three… | ||
| scan0124 | Technical memo regarding a rattle on clutch engagement in Bentley vehicles, its cause and the required modification. | ||
| View original record | X 212 To Hd. (FOR DEPOT SHEET). Hs/Gry.1/KW.20.10.34. Rattle on Engaging Clutch - Bentley. Complaints that the clutch engagement is not smooth and is accompanied by a rattle in the transmission can be… | ||
| scan0125 | Damage caused by bifurcated rivetting on clutch fabrics, instructing the use of ordinary rivets for specific models. | ||
| View original record | x212 To By. Hs/Gry.6/KW.20.10.34. Bifurcated Rivetting. We have discovered that when this type of rivetting is used for clutch driven members in which the fabric is rivetted to the driven member and… | ||
| scan0126 | Standardisation of parts regarding spring centre deletion and external clutch adjustment fitting. | ||
| View original record | RR 785B (BH) (57394, 30-1-34) BM 3/787/1 COMPLETED 30.10.34. BENTLEY STANDARDISATION of PARTS. Date 18.9.34. X No. 212 Drawing No. GL735 Part List Description of Parts. SPRING CENTRE DELETED AND… | ||
| scan0127 | The cost and production timeline 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.26.9.34) £19.0.0. Could be brought on to production at 1st chassis in "D" series (Sft/GH.26.9.34) without scrap. Stamp:… | ||
| scan0128 | Standardisation of a spring loaded spherical bearing for a pedal shaft. | ||
| View original record | RR 7859 (BH) (57394. 30-1-34) BM 3/787/1 COMPLETED 30.10.34. BENTLEY STANDARDISATION of PARTS. Description of Parts. SPRING LOADED SPHERICAL BEARING FOR PEDAL SHAFT. Origin. To prevent rattles… | ||
| scan0129 | Cost estimate and production feasibility note for extra jigs, tools, and equipment. | ||
| View original record | Est. cost of extra jigs tools and equipment (Sft/Ws.1.10.34) £5.0.0. Could be brought onto production at 1st chassis in "D" series, (Sft/GH.1.10.34) without scrap. | ||
| scan0130 | Schemes to eliminate gear lever noise and dither on a Bentley. | ||
| View original record | x 212 To RHC. Hs/Rm.21/KW.7.11.34. Gear Lever Dither on the Bentley. Further to our conversation on this subject, we are exceedingly anxious to get the scheme produced by Hardy detailed and… | ||
| scan0131 | Potential causes of clutch slip on a Bentley chassis, questioning if it's caused by the lubrication system. | ||
| View original record | Hs. Rm Hd/SB14/HR.15.11.34. re CHUTCH SLIP. BENTLEY CHASSIS. --------------------------------- We attach hereto a memo we have received from Sales, reference H16/NM.14.11.34. The case referred to is… | ||
| scan0132 | Responding to a reported case of clutch slip on a Bentley B-53-AE and mentioning ongoing experiments for an improved clutch. | ||
| View original record | To Hd; from Hs/Rm. x212 Hs/Rm.32/KW.15.11.34. Re Clutch Slip. Replying to Hd/SB14/HR.15.11.34. We are not alarmed by the isolated case of clutch slip reported on the car of Mr. A.M.Mitchell, B-53-AE.… | ||
| scan0133 | Re-lining of the clutch on Experimental Bentley Chassis No. B.4. | ||
| View original record | Hs/Rm. x212 Hd/WT7/HR.30.11.34. re EXPERIMENTAL BENTLEY CHASSIS NO. B.4. --------------------------------- Please note, that in re-lining the clutch and fitting a new spring loaded friction plate on… | ||
| scan0134 | Modification and fitting of flywheels and clutches to B-10 and B-12 units for data gathering. | ||
| View original record | X212 To RHC. c. to Hs/Smth. Hs/Gry.17/KW.20.12.34. In order to get further data on B-10 unit which is not runnable because of the new clutch to N.Sch.4190, we should like to fit the flywheel and… | ||
| scan0135 | Modification of disc flywheels for a Bentley. | ||
| View original record | x-12 To RHC. Hs/Gry.6/KW.28.12.34. Disc Flywheels - Bentley. We recently asked you to fit a modified flywheel to EX.12847 on B-10 unit. We find however that none of the three steel flywheels available… | ||
| scan0136 | Flywheel balancing issues, requesting that the complete assembly be tested on knife edges before engine fitting. | ||
| View original record | To RHC. x212 Hs/Gry.18/KW.1.1.35. Flywheel Balance. We find we have been misled recently during tests on flywheel vibrations by the flywheels themselves not being in static balance. B-1 unit at… | ||
| scan0137 | Summary of clutch experiment setups for various units. | ||
| View original record | L212 7.1.35. CLUTCH EXPERIMENTS. C-10 UNIT. New Clutch, M.M.20 Material. N.Sch.3948. 21-G-IV. C.14 UNIT. New Clutch, thin flywheel, fabric on pressure plates, no movement of back plate. .025 set in… | ||
| scan0138 | High-speed test report on a Bentley 'milanite' flywheel. | ||
| View original record | X212 To E. From HS/WB. c. to Wor. c. to By. c. to Da. c. to Hdy. HS/WB.19/KW.8.1.35. Bentley "milanite" Flywheel. High Speed Test. A "milanite" flywheel EX.14077, with gear ring EX.14078 attached, was… | ||
| scan0139 | Request to saw-cut the driven plate of the clutch on a B-11 unit. | ||
| View original record | X212 To RHC. Hs/Gry.25/KW.17.1.35. B-11 UNIT. As regards the clutch on this unit, we should like to saw-cut the driven plate, exactly as was carried out on C-14 unit for the 10,000 miles test. Will… | ||
| scan0140 | Re-standardisation and specification of a Bentley clutch, including a list of part numbers. | ||
| View original record | 4212 To By. c. to E. c. to Da. Hs/Gry.1/KW. 21.1.35. Re Standardisation of Clutch to N. Sch. 3948. Bentley. The clutch that has run 15,000 miles in France on 21-G-IV is to the following specification… | ||
| scan0141 | Specifications for modifying a clutch for a B-10 Unit. | ||
| View original record | To RHC. X212 Hs/Gry.14/KW.25.1.35. Clutch for B-10 Unit. Will you please remove from this unit the clutch at present fitted to N.Sch.4190, and fit an N.Sch.3948 clutch to the following specification -… | ||
| scan0142 | Experiments to eliminate gear lever rattle on the Bentley. | ||
| View original record | X212 To Su. from Hs/Rn. c. to WOP. c. to R. c. to Dy. c. to Hiv. c. to Bn. c. to HX. Gear Lever Rattle on the Bentley. We have for some time past been experimenting to get rid of the gear lever rattle… | ||
| scan0143 | Diagram of an isolated gear change lever mechanism for a Bentley. | ||
| View original record | GEAR CHANGE LEVER. THE GATE IS MOUNTED ON THE FRAME AND CARRIES THE OUTER RACES FOR THESE BEARINGS. SELECTOR LEVER IN GEAR BOX. THE INNER CONNECTING SHAFT IS SPHERICALLY MOUNTED ON THE GEAR LEVER AND… | ||
| scan0144 | Blueprint diagram illustrating a Mor-Flex coupling on a selector shaft for a Bentley. | ||
| View original record | GEAR CHANGE LEVER THE GATE IS MOUNTED ON THE FRAME AND CARRIES THE OUTER RACES FOR THESE BEARINGS. SELECTOR LEVER IN GEAR BOX. MOR-FLEX COUPLING CONSISTING OF RIGID DISC WITH FOUR RUBBER BUSHES.… | ||
| scan0145 | Flywheel experiments on a Bentley, concerning low inertia issues causing rattles and a request to fit a new scheme. | ||
| View original record | 4212 To R.H.C. Hs/Gry.20/KW.29.1.35. Flywheel Experiments - Bentley. Further to our experiments on flywheel vibration, we have discovered on 3-B-IV that the inertia of the disc flywheel is too little… | ||
| scan0146 | Table comparing the weight and inertia values for various Bentley flywheels. | ||
| View original record | L212 29.1.35. BENTLEY FLYWHEELS. Weight Inertia Standard 20/25 97 lbs. .69 Standard Bentley 74 lbs. .46 N.Sch.3948. 81 lbs. .46 N.Sch.3948. mod. to Hs.1416. 73 lbs. .39 N.Sch.4190 63 lbs. .33 Disc +… | ||
| scan0147 | The decision not to standardise a lightened flywheel for the Bentley Clutch. | ||
| View original record | To By. X212 Hs/Gry.8/KW.31.1.35. Bentley Clutch. Further to our memo. reference Hs/Gry.1/KW.21.1.35, we have decided that we do not wish to standardise the lightened flywheel to Hs.1416, but instead… | ||
| scan0148 | Tackling the gear lever rattle on the Bentley. | ||
| View original record | X212 To Hs/Rm. from Sg. Copy to Wor.T.BY. Hdv.Rn.Mr. Gear Lever Rattle on the Bentley. Sg3/El.2.35 Referring to Hs/Rm.19/KW.29.1.35 I am very pleased to see that the above question has been seriously… | ||
| scan0149 | The elimination of gear lever rattles on a Bentley chassis. | ||
| View original record | S/W. c to K. COPY. H7/MC.2.2.35. BENTLEY CHASSIS. GEAR LEVER RATTLES. ---------------- Please refer to your H8/SB12/HR.23.10.34. We are anxious to know if any progress has been made towards… | ||
| scan0150 | Flywheel experiments on a Bentley, specifying a change from an 11' to a 10' Borg & Beck clutch. | ||
| View original record | To RHC. +212 Hs/Rm.17/KW.4.2.35. Flywheel Experiments - Bentley. Further to our Hs/Gry.20/KW.29.1.35. in which we have asked you to increase the inertia of the flywheel on B-9 unit, we forgot to add… | ||
| scan0151 | Complaints about gear lever rattles on Bentley chassis and requesting a suggested course of action. | ||
| View original record | HS/Rm. Hd/SB20/HR.4.2.35. re GEAR LEVER RATTLES. Bentley Chassis. ---------------------- We have, on several occasions, drawn your attention to the number of complaints which have been received of… | ||
| scan0152 | Fitting a Terraplane cork clutch and spring drive, with a deflection curve diagram. | ||
| View original record | To RHC. t u z Hs/Gry.18/KW.5.2.35. Clutch Spring Drives. 5-B-IV is at present fitted with a Terraplane cork clutch and spring drive. In spite of the very light flywheel no overrun rattles are… | ||
| scan0153 | Non-standardised cure for gear lever rattles on a Bentley for a Mr. Ballantine. | ||
| View original record | To Hd. from Hs/Rm. x212 Hs/Rm.18/KW.6.2.35. Gear Lever Rattles on the Bentley. Replying to Hd/SB20/HR.4.2.35. Attached is a report that we have recently issued on gear lever rattles. From this you… | ||
| scan0154 | Flywheel vibrations by adjusting the balance of the crank web. | ||
| View original record | To RHC. x212 Hs/Gry.11/KW.7.2.35. Flywheel Vibrations. We want to find out whether we can still eliminate this trouble by having 100% balance of the crank web nearest the flywheel. We cannot increase… | ||
| scan0155 | Bentley clutch design with technical representatives from Borg & Beck. | ||
| View original record | To E. c. to Wor. c. to Da. c. to Hdy. +212 Hs/Gry.1/KW.14.2.35. Bentley Clutch. We had a discussion last week with the technical representatives of Borg & Beck, to whom we showed our adaptation of… | ||
| scan0156 | Use of Borg & Beck clutches versus in-house designs for Bentley, 20/25 and Wraith models. | ||
| View original record | To E. from Hs/Rm. c.c. to Wor. Hs/Rm.2/KW.27.2.35. Car Clutches General. We send you herewith Borg & Beck's design for fitting one of their 11" clutches to the Bentley. Actually, since a 9.6" Borg &… | ||
| scan0157 | Lubrication leak issues on the Bentley clutch operation anchor link and a proposed solution. | ||
| View original record | Y212 RW Moon To EF. from Da. Da.1/EP.21.2.35. c.c. Er. Hs. RHG. Hdy. Bentley Clutch Operation - Flexible Engine. We understand that the anchor link on the clutch operation shews signs of leak of… | ||
| scan0158 | The investigation of a failed clutch centre for a new Bentley clutch. | ||
| View original record | To By: 4212 Hs/Rm.3/KW. 8.3.35. Clutch Centre - New Bentley Clutch. With reference to the clutch centre which failed and which we handed to you, we have since stripped a similar type of clutch with a… | ||
| scan0159 | Suggesting a new type of self-sealing spigot bearing for the Borg and Beck clutch on a Bentley. | ||
| View original record | +212 To EY. from HDY. HDY.1/HP.16.7.35. c. W.O., E. Hs., Dd., R.H.G. Borg and Beck Clutch. - Bentley. N. Sch.4419 herewith shows the clutch spigot bearing in the crankshaft for this clutch. It is… | ||
| scan0160 | Urgent request for a modified clutch driven plate made of .080 saw steel for a 10,000-mile test. | ||
| View original record | To Order Office. 4212 Hs/Gry.13/KW.19.3.35. This is to confirm our asking you to obtain as quickly as possible a clutch driven plate to EX.17695 but made of .080 saw steel instead of the 3% nickel.… | ||
| scan0161 | Trial of a new Borg & Beck clutch for Bentley models. | ||
| View original record | To RHC. +v/2 HS/Gry.4/KW.22.3.35. Bentley Clutches. The Design Dept. are issuing a drawing of a Borg & Beck clutch in conjunction with the new large diameter rear crankshaft bearing. We think,… | ||
| scan0162 | Standardisation features for the Bentley clutch. | ||
| View original record | twr To By. c. to MX. Hs/Gry.15/KW.22.3.35. Bentley Clutch. With regard to the standardisation of the clutch to N.Sch.3948 with fabric on the driven member, the following features should be… | ||
| scan0163 | Standardisation of parts report for a lightened clutch, part number N.Sch.3948. | ||
| View original record | COMPLETED 29.3.35. BENTLEY STANDARDISATION of PARTS. Description of Parts. CLUTCH TO N.Sch.3948 lightened. Origin. To improve clutch life and save weight. Report of Experimental Test. Ran 15,000 miles… | ||
| scan0164 | Cost analysis and savings calculation for introducing a new part for the 'E' series chassis. | ||
| View original record | Est. cost of extra jigs, tools and equipment (Sft/Ws.8.2.35) £330.0.0. Could be brought on to production at 1st chassis in "E" series, (Sft/GH.8.2.35) without scrap. Material £-s-d Labour £-s-d… | ||
| scan0165 | Standardisation of a cantilever pedal for the Bentley to improve clutch operation. | ||
| View original record | RR TESS (SH) (57394. 30-1-34) BM 3/787/1 COMPLETED 29.3.35. BENTLEY STANDARDISATION of PARTS. Date 29.1.35. X No. 212. Drawing No. Part List Description of Parts. CANTILEVER PEDAL FOR THE BENTLEY. TO… | ||
| scan0166 | Cost estimation for extra jigs, tools and equipment, including a cost comparison between an old and a new part. | ||
| View original record | STANDARDISATION OF PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.14.2.35) £221.0.0. Could be brought on to production at the 1st chassis in "F" series, (Sft/GH.14.2.35) without scrap.… | ||
| scan0167 | Urging the detailing of an adaptation of a Borg and Beck clutch for a Bentley engine. | ||
| View original record | To By. x212 Hs/Gry.9/KW.3.4.35. Bentley Clutch. This is to ask you to urge the detailing of N.Sch.4435, showing an adaptation of the Borg and Beck clutch to the Bentley engine having 4-stud rear… | ||
| scan0168 | Production hold and modifications for Bentley cantilever pedals due to deflection issues. | ||
| View original record | To RHC. +212 Hs/AFM.1/KW.17.4.35. Cantilever Pedals for Bentley. ------------------- Production of the above has been held up by Hs/Rm. until we can produce a scheme to eliminate lost movement between… | ||
| scan0169 | Modifications to a Bentley's Borg and Beck clutch thrust bearing housing for improved oil retention. | ||
| View original record | L2/7 Rom GRYL To BT. from HDY. c. Wer. E. Hs. Ds. RHC. HDY.1/HP.17.4.35. Borg and Beck Clutch - Bentley. N. Sch.4465 herewith shows modifications to the clutch thrust bearing housing intended to… | ||
| scan0170 | Points raised by Borg and Beck Ltd. regarding a Bentley clutch and the corresponding remarks. | ||
| View original record | Handwritten notes: [Top Left] PY. from HDY. c. Wer. E. Hs. Da. RHC. [Top Right] GBK Have precautions been taken to prevent recent spring centre failure recurring. Typed Text: Borg and Beck Clutch -… | ||
| scan0171 | Design of a clutch plate and spring damped centres. | ||
| View original record | (2) HDY.1/HP.18.4.35. drawings, should be provided. It would appear to be cheaper for the permanent scheme to offset one of the setscrews. ---- With reference to a request by Hs/Rm. that the clutch… | ||
| scan0172 | Instructing the swapping of flywheels and clutches between two engine units for experimental purposes. | ||
| View original record | To RHC. X212 Hs/Gry.5/KW.27.4.35. Flywheel Experiments. Will you please remove the flywheel and clutch at present fitted to B-9 unit, and fit it to Y4BB, as we want to make sure that we retain a… | ||
| scan0173 | Request to fit a new Millenite flywheel and inertia ring to a Y-4-BB unit as a replacement for a distorted one. | ||
| View original record | To RHC. x212 Hs/Gry.11/KW.2.5.35. Flywheel for Y-4-BB Unit. We have previously asked you for the flywheel from B-9 to be fitted to this unit. We understand it is too distorted for further use. Will… | ||
| scan0174 | Flywheel experiments and the weights and inertia values of various components. | ||
| View original record | To Hs/Rm. x 212 Hs/Gry.2/KW.10.5.35. Flywheel Experiments. (1) 4-B-IV. B-7. Change lightened flywheel Hs.1416 for present Bentley production, N.Sch.3948. (2) Millenite disc + inertia ring + 10" Borg &… | ||
| scan0175 | Modifications and testing for a Bentley clutch cover. | ||
| View original record | X212 To EY. from HDY HDY.1/HP.23.5.35. c. Wer. Ey. Hs. Da. REG. Bentley Clutch. N. Sch.4502 herewith shows a stiffened flywheel cover for this clutch. We show dotted the forging for the existing cover… | ||
| scan0176 | The proposal to stiffen the clutch cover for the Bentley chassis flywheel and clutch. | ||
| View original record | BY/EWB SCL c. Hs/Rm. x12 BY/Cgh.10/G. 24.5.35. BENTLEY CHASSIS - FLYWHEEL AND CLUTCH. ------------------------------------ With reference to the proposal to stiffen up the clutch cover with a view to… | ||
| scan0177 | Internal memorandum regarding a Bentley chassis clutch issue and the proposed solution. | ||
| View original record | SCL SCL/AEW Hs/Rm. EP Mx C. Wox C. BY/TWD /12 BENTLEY CHASSIS - CLUTCH. ------------------------- With reference to the movement of the clutch pedal reported by the Test Department, we have given this… | ||
| scan0178 | Breakdown of weights for the components of a Bentley Clutch cartridge assembly. | ||
| View original record | To Hdy: tn12 Hs/Gry.19/KW.30.5.35. Bentley Clutch - N.Sch.3948. Herewith the various weights of the bits comprising the clutch cartridge assembly :- Hexagon Cap 155.5 grms. Alum. Distance Piece 49.5 "… | ||
| scan0179 | Trial fitting of a strengthened Bentley clutch cover to a B-5 unit. | ||
| View original record | To RHC. x212 Hs/Gry.12/KW.3.6.35. Bentley Clutch. When the parts for the strengthened Bentley clutch cover to N.Sch.4502 are ready, would you please fit them to B-5 unit. This unit already has the… | ||
| scan0180 | Lightening of components for a Bentley Clutch. | ||
| View original record | X212 To EY. from HDY. HDY.1/HP.3.6.35. c. Wor.-E. Hs. Bev HHC GRY Bentley Clutch. N. Sch.4517 herewith shows a lightened operating lever and spring cup provided to reduce the deflection of the… | ||
| scan0181 | Query regarding the standardisation of a modified clutch cover for a Bentley chassis to resolve an issue with the clutch pedal. | ||
| View original record | Hs. X212 BY/Cgh.3/G. 22.6.35. GRY BENTLEY CHASSIS - FLYWHEEL AND CLUTCH. With reference to the modified clutch cover which we detailed and instructed experimentally recently, and which is intended to… | ||
| scan0182 | Requesting the polar moment of inertia for a single plate flywheel and clutch, and for a double plate clutch. | ||
| View original record | To RHC. X212 Hs/Gry.7/KW.11.7.35. We asked you some time ago to let W. Bell have the complete single plate flywheel and clutch to N. Sch. 4229, to obtain the polar moment of inertia. We should be glad… | ||
| scan0183 | Test results of different Bentley flywheel and clutch components. | ||
| View original record | +212 To E. c. to Wor. c. to Dn. c. to By. c. to Hqy. c. to Mx. Hs/Gry.9/KW.18.7.35. Bentley Flywheel & Clutch. We have tried the stiffened clutch cover, N.Sch.4502, on B-5 unit in a Test Dept. car.… | ||
| scan0184 | Recurring clutch failure on a standard Bentley at Brooklands. | ||
| View original record | X212 To Hs/Gry. Hs/Rm.3/KW.10.8.35. Present Standard Bentley Clutch. After two or three laps on the track yesterday, Lappin's clutch behaved exactly as it has done previously, i.e., it refused to… | ||
| scan0185 | Use of Borg & Beck clutches on Bentley models, flywheel supply, and pedal lever modifications. | ||
| View original record | To RHC. X212 Hs/Gry.18/KW.13.8.35. Borg & Beck Clutches - Bentley. We shall be using clutches to Ex.18198 on all future large bore units. We have now used all our supply of flywheels. Will you please… | ||
| scan0186 | The performance and testing of Borg & Beck clutches fitted to Bentley cars. | ||
| View original record | To E. c.c. to Wor. c.c. to Du. c.c. to By. c.c. to Hsy. 4212 Hs/Gry.8/KW.16.8.35. Bentley Clutch. We now have two cars, B-23-AE and 1-B-IV running with 10" Borg & Beck clutches fitted to a flywheel as… | ||
| scan0187 | Issues with customers burning out the Bentley clutch mechanism due to pedal clearance problems. | ||
| View original record | Bentley Motors (1931) Ltd., Derby ...............Hs/Rm. Srl/Crn.27.8.35. GRY Bentley clutch mechanism. ----------------------- You, of course, know that several customers have had clutch trouble with… | ||
| scan0188 | Issues with the original Bentley clutch and the performance of a new, superior design. | ||
| View original record | To Sr. from Hs/Gry. X 212 Hs/Gry.7/KW.29.8.35. Bentley Clutch. Sr.1/Crn.27.8.35. The original Bentley clutch was exactly the same as the 20/25 except that the flywheel had less inertia. The fabric was… | ||
| scan0189 | From a cork manufacturer regarding the supply of alternative laminated washers due to the size constraints of natural cork. | ||
| View original record | Established A.D. 1880. Telephone—BLA. 5912. M 11178 Memo. from Alfred Ogden & Co. (ALFRED OGDEN). CORK MANUFACTURERS. 12, HANOVER STREET, Shudehill, MANCHESTER, 4. DEALERS IN :— English and Foreign… | ||
| scan0190 | Requesting an official order for laminated composition cork washers received from a supplier. | ||
| View original record | Roy. X212 Hs/Gry.6/KW.11.9.35. We have ordered and received from Messrs. Alfred Ogden & Co., 12, Hanover ST., Shudehill, Manchester 4 :- 12. Laminated Composition Cork Washers. Will you please send an… | ||
| scan0191 | Fitting Borg & Beck clutches to Bentley units, including specifications for ordering. | ||
| View original record | To RHC. [handwritten] XUL✓ Hs/Gry.5/KW.11.9.35. Bentley Clutches. Ex.18198 We wish to fit Borg & Beck clutches to all our Bentley units. Three of these are being machined at the moment, but we shall… | ||
| scan0192 | Instructing the order of a further nine levers for Borg & Beck clutches to be fitted to experimental and sales cars. | ||
| View original record | X212 To RHC. Hs/Std.15/KW.12.9.35. Borg & Beck Clutches - Hs.2081 Levers for same. Since we are proposing to fit twelve Borg and Beck clutches in all to experimental and Sales cars, we shall require… | ||
| scan0193 | Invoice from Alfred Ogden & Co. for a Laminated Compo Cork Washer and requesting instructions to issue an order. | ||
| View original record | Hs. G/Cam/CA.22/KI.12.9.35. We have received an invoice from Alfred Ogden & Co. dated the 9th instant, on which we are charged 2/-d. nett for one E.55092 Laminated Compo. Cork Washer, which they say… | ||
| scan0194 | Confirming receipt of twelve Laminated Composition Cork Washers and authorising payment. | ||
| View original record | To Roy. c.c. to G/Cam. Hs/Gry.31/KW.13.9.35. G/Cam/CA.22/KI.12.9.35. We have received from Messrs. Alfred Ogden & Co. twelve Laminated Composition Cork Washers, not one, as stated in the… | ||
| scan0195 | 10' Borg & Beck Clutch on a Large Bore Bentley. | ||
| View original record | X212 To By. Hs/Gry.2/KW.3.10.35. 10" Borg & Beck Clutch on Large Bore Bentley. As well as the parts shown on Ex.18198, will you please have incorporated on the L.O.P. a clutch operating lever to… | ||
| scan0196 | New drawings for the Large Bore Bentley Chassis Spring Drive and Slipper Flywheel. | ||
| View original record | To RHC. c. Hs/Gry. BY/CS1/EH.15.10.35. Large Bore Bentley Chassis - Spring Drive - Sec:5020. LeC.4629 - Spring Drive & Slipper Flywheel, Solid Centre and Increased Inertia. LeC.4694 - Cork Insert… | ||
| scan0197 | Requesting the relative labour and material cost for a Bentley clutch flywheel versus a Borg & Beck arrangement. | ||
| View original record | To RHC. X212 Hs/Gry.21/KW.30.10.35. Could you give us an idea of the approximate relative cost of labour and material for the flywheel only of the present Bentley clutch, N.Sch.3948, and the Borg &… | ||
| scan0198 | Confirming the trial of a B-19 clutch with an Oilite cage, using no external lubrication for the trunnion. | ||
| View original record | X212 To RHC. Hs/Smth.19/KW. 7.11.35. Oilite Cage for Clutch Trunnion. This is to confirm that we wish to try B-19 clutch with no external lubrication whatever to the clutch trunnion. Hs/Smth. | ||
| scan0199 | Request to fit a clutch pedal return spring to a car while it is in the shop. | ||
| View original record | To RHC. x2/2 Hs/Les.16/KW.11.11.35. 1-B-IV. While this car is in the shop, will you please fit the clutch pedal return spring asked for in Hs/Smth.18/KW.7.11.35. Hs/Les. | ||
| scan0200 | Request to test drive a Large Bore Bentley with a Vanvooren Body in traffic and provide clutch wear data. | ||
| View original record | To Sg. X 212 Hs/Rn.11/KW.16.11.35. Large Bore Bentley - Vanvooren Body. It would be of great assistance to us if whilst you have this car in London you could arrange for it to be driven in traffic… | ||
| scan0201 | Requesting an investigation to increase the travel of the Bentley clutch pedal. | ||
| View original record | To E. X2/2 Hs/Smth.8/KW.19.11.35. Bentley Clutch. We are anxious that the travel of the clutch pedal should accommodate as much lining wear as possible. At present the pedal is permitted to rise some… | ||
| scan0202 | Adoption and testing of a Borg & Beck clutch for the Big Bore Bentley. | ||
| View original record | X212 To SG. & Sor. c. to E. c. to Hy. c. to Mx. HS/Rn.G/KW.19.11.35. Borg & Beck Clutch. Big Bore Bentley. On the Big Bore Bentley we are adopting for the first time a Borg & Beck clutch. We are… | ||
| scan0203 | Summary of clutch tests concluding the unit for the large bore Bentley is more durable and proposing a larger version for the 20/25 chassis. | ||
| View original record | -2- Hs/Rm.G/KW.19.11.35. Therefore, summarising the results obtained. A clutch is a portion of a car which, if abused sufficiently, can always be destroyed; therefore it is impossible to claim… | ||
| scan0204 | Performance and testing of a Borg & Beck clutch fitted to Bentley cars. | ||
| View original record | COPY. To E. c. to Wor. c. to Dm. c. to Hy. c. to Hdy. Hs/Gry.B/KW.16.6.35. Bentley Clutch. We now have two cars, B-23-AE and 1-B-IV, running with 10" Borg & Beck clutches fitted to a flywheel as… | ||
| scan0205 | Costs for re-lining early type Bentley clutches versus fitting a Borg & Beck type. | ||
| View original record | HS/Rm. x212 Rm Hd10/IB.18.11.35. RE-LINING OF BENTLEY CLUTCHES. ---------------------------- Confirming our conversation re the above, at the present moment, to re-line the early type clutch, i.e. A.… | ||
| scan0206 | Comparative table of clutch pedal ratios for various clutch systems. | ||
| View original record | To Hs/Rm: x~12 Hs/Smth:9/KW.19.11.35. Clutch Pedal Ratios. | | Old Std. Bentley (Fabric on Flywheel). | New Bentley N.Sch.3948 (Fabric on Plate). | 10" Borg & Beck with shortened operating lever. |… | ||
| scan0207 | Specification table for wear adjustments on two types of Bentley clutches. | ||
| View original record | X212 To Rm. Hs/Smth.15/KW.20.11.35. Wear Adjustments on Bentley Clutches. Standard Bentley 10" B. & B. with N. Sch. 3948 3.000" Operating Lever -------------------- --------------------- Pedal… | ||
| scan0208 | Note detailing the clutch designs used on various Bentley series. | ||
| View original record | X212 23.11.35. Bentley Clutch. Original design fitted to A, B, C, & D. series. N.Sch. 3948 " " E & F. series Borg & Beck - 1st in 'G' series. Above information from BY/Mr. Shelton. | ||
| scan0209 | The maximum wear adjustment for the Borg & Beck clutch on a Bentley. | ||
| View original record | To Dr. E. X212 Hs/Smth.28/KW.25.11.35. Borg & Beck Clutch on Bentley. The present standard clutch has the same thickness of linings as the Borg & Beck, but we allow 50% more wear on our clutch than is… | ||
| scan0210 | The travel of the Bentley clutch pedal to accommodate lining wear. | ||
| View original record | To E. X212 Hs/Smth.12/KW. 25.11.35. Bentley Clutch. We are anxious that the travel of the clutch pedal should accommodate as much lining wear as possible. At present the pedal is permitted to rise… | ||
| scan0211 | Results of Bentley clutch tests on Porlock Hill, comparing R.R. and Borg & Beck types. | ||
| View original record | X212 To Hs/Rm. Hs/FD.21/KW.25.11.35. Bentley Clutch Tests on Porlock Hill. We have carried out a series of tests on the above hill to determine the amount of clutch wear on the R.R. and Borg & Beck… | ||
| scan0212 | Recurring clutch failures on Bentley vehicles, cost implications, and a proposed upgrade. | ||
| View original record | X212 W/S - C. c. to Hd. Hs/Rm.35/KW.25.11.35. Clutch Failures on Bentleys. We see from the Quarterly Complaint list that a considerable amount of trouble is being experienced with Bentley clutches. As… | ||
| scan0213 | Request to manufacture a new pedal spring for a Borg & Beck clutch due to the original being too highly loaded. | ||
| View original record | x212 To RHC. HS/Smth.6/KW.3.12.35. Pedal Spring for Borg & Beck Clutch. The spring on 1-B-IV is too highly loaded in the initial position and the rating is too high. Will you please make us a spring… | ||
| scan0214 | Clutch failures on Bentley cars, comparing the original clutch with a new RR clutch and a potential Borg & Beck replacement. | ||
| View original record | S/W (Hs/Rm.) from H. H10/H3.12.35. Re: Clutch failures on Bentley cars. Your Hs/Rm35/KW25. 11. 35. C. has asked me to enquire whether in the second line, second paragraph of your memo, where you refer… | ||
| scan0215 | Internal request to order 12 joint washers for a Bentley, with material specifications. | ||
| View original record | To Roy. x~19 Hs/Smth.17/KW.5.12.35. Bentley. O/No.54307. Will you please order 12 Joint Washers to EB.113 as under - 6 off in Oakenstrong Material, 1/16" thick. 6 " " Gaskoid " 1/16" " Hs/Smth. 2… | ||
| scan0216 | Clutch failures on Bentley cars, comparing the cost and implications of using a Borg & Beck clutch versus an improved Rolls-Royce type. | ||
| View original record | X~12 W/S - H. Hs/Rm.12/KW.7.12.35. Clutch Failures on Bentley Cars. Referring to H.10/H.3.12.35. the clutch referred to in the second paragraph of Hs/Rm.35/KW. 25.11.35. is a Borg & Beck. The Borg &… | ||
| scan0217 | Clutch failures on Bentleys and the potential for fitting an up-to-date, non-standard Borg & Beck clutch. | ||
| View original record | x212 S/W Hs/Rm. C7/C11.12.36 Re CLUTCH FAILURES ON BENTLEYS. Hs/Rm12/KW7.12.35 & Hs/Rm35/KW25.11.35 ------- We have noted contents of your memos. and agree that in some cases of exceptionally heavy… | ||
| scan0218 | High-speed endurance testing and modifications for the 10' Borg & Beck clutch for Bentley. | ||
| View original record | To E. & By. c. to Roy. X212 Hs/Rm.16/KW.3.1.36. 10" Borg & Beck Clutch for the Bentley. The high speed endurance we have carried out on the test bed has indicated that it is important that the… | ||
| scan0219 | Failed 10-inch Bentley clutch from car B-14, taken by Mr Barker of Borg & Beck for examination. | ||
| View original record | X212 To RHC/CEP. Hs/FJH.1/JH.3.1.36. Bentley Clutch. Will you please note that Mr Barker of Borg & Beck has taken away with him the 10" clutch which has failed on B-14. He will examine it and return… | ||
| scan0220 | Issues with Bentley Large Slipper Wheel friction linings and proposed design modifications. | ||
| View original record | To E. c. to By. X212 Hs/Smth.19/RW.4.1.36. Bentley Large Slipper Wheel. We have run one of these wheels and find that the cork friction linings are unsatisfactory owing to rapid wear, and Ferodo… | ||
| scan0221 | Change of spring for the Borg & Beck clutch on a Bentley pedal. | ||
| View original record | To By. c. to E. x~12 Hs/Smth.17/KW.6.1.36. Borg & Beck Clutch on Bentley Pedal Pull-off Spring. We have tried spring FB.2107 whichis instructed for production, but consider it too heavy. If not too… | ||
| scan0222 | On required corrections to the Bentley chassis Borg & Beck clutch, concerning pressure plate balancing and spring specifications. | ||
| View original record | Rm Sft. [crossed out] Roy. [crossed out] c. Wor. [crossed out] c. Hs. x 212 LESmith BY/Cgh. 25/G. 6. 1. 36. BENTLEY CHASSIS - BORG & BECK CLUTCH. --------------------- The Experimental Department… | ||
| scan0223 | Two failures of a 10-inch Borg & Beck clutch for Bentley during high-speed endurance testing. | ||
| View original record | X212 To H. c. to WOF. c. to By. c. to Hdy. c. to Mx. Borg & Beck Clutch for Bentley. Broken Pressure Plates. We have had two failures of 10" Borg & Beck clutches. Both were on test bed units running… | ||
| scan0224 | Clutch balancing methods and clutch spring development for large bore engines. | ||
| View original record | -2- We have discussed the matter with Borg & Beck and we find that their method of balancing is to balance the pressure plate alone, then to assemble and balance the complete clutch by drilling… | ||
| scan0225 | Standardisation of clutch springs for large bore cars, referencing Borg & Beck and the Bentley clutch. | ||
| View original record | -3- Hs/Smth.20/Ks.6.1.36. When the question of standardisation of the clutch on large bore cars arose 3 months ago, Borg & Beck strongly recommended that we should increase the spring poundage,… | ||
| scan0226 | Photograph of a fractured Borg & Beck clutch pressure plate after an endurance test. | ||
| View original record | 16/12/35 B14 UNIT BORG & BECK CLUTCH PRESSURE PLATE AFTER 95 HOURS TEST BED ENDURANCE 30 MINS. @ 4000, 25 MINS. @ 4250, 5 MINS. @ 4500 R.P.M. Text cast on part: BORG & BECK, L.TR., DA, CY, LEAMINGTON… | ||
| scan0227 | The method for locating and fixing 10' Borg & Beck clutches on Bentley flywheels. | ||
| View original record | To RHC. X212 Hs/Smth.2/JH.16.1.36. 10" Borg & Beck Clutches on Bentley. The method of locating and fixing the clutches on the flywheels is to be somewhat different on the production cars from that… | ||
| scan0228 | Instructions and new drawings for a Large Bore Bentley Chassis spring drive and slipper flywheel. | ||
| View original record | [illegible strikethrough] c. Hs/Gry. 1212 BY/CS2/EH.29.1.36. Re Large Bore Bentley Chassis - Spring Drive - Sec;5020. LeC.4946 - Cotton Duck Friction Disc for Slipper Flywheel. Please receive herewith… | ||
| scan0229 | The lubrication of Bentley clutches and suspected clutch slip caused by overoiling the trunnion. | ||
| View original record | X212 To Mx. Hs/Smth.4/JH.1.2.36. Bentley Clutches: The thrust race of the clutch withdrawal trunnion is greasy when assembled. When the engine goes on to the test bed the clutch operating lever should… | ||
| scan0230 | Tests conducted on a Borg & Beck clutch to investigate the cause of finger lever bolt breakage. | ||
| View original record | FILE ONLY Tests on Borg & Beck Clutch to find reason for lever Bolts Breaking. Tests Carried Out on J-B-IV - 11" Borg & Beck Clutch. The breaking of the finger lever bolts was suspected, from the… | ||
| scan0231 | Hairpin spring fatigue, proposing stronger springs and a new minimum clearance for the clutch trunnion shaft. | ||
| View original record | -2- Ha/GWA.4/EH.5.2.36. We assume that the hairpin springs are set in a period at this speed, andtogether with the natural tendency of the clutch fingers to fling outwards, cause a period of vibration… | ||
| scan0232 | 510-mile road test of a Borg & Beck clutch, which ended due to a connecting rod seizure. | ||
| View original record | To E. c. to Da. c. to Hdy. c. to Hs. x212 Hs/GWH.1/KW.13.2.36. 3-B-IV. Borg & Beck Clutch. We have after measuring the fling out of the bolts, running the engine stationary, carried out tests on the… | ||
| scan0233 | Questioning the decision to revert to an R.R. clutch for the Bentley, citing previous issues and lack of testing. | ||
| View original record | C O P Y. To Hs/Rm. from Sg. c. to Wor. E. BY. Sg.8/E.6.3.36. Re Bentley Clutch. In the third paragraph of Hs/Rm.5/KW.5.3.36, you say that you are sorry that we are committed to the Borg & Beck… | ||
| scan0234 | Questioning the decision to use a Borg and Beck clutch in the Bentley and asking for details on the alternative RR clutch. | ||
| View original record | X212 To Hs/Rm. from Sg. re Bentley Clutch. Sg8/E6.3.36 Copy to Wor.E.BY. (strikethrough) In the 3rd paragraph of Hs/Rm.5/KW.5.3.36 you say that you are sorry that we are committed to the Borg and Beck… | ||
| scan0235 | The proposal to revert to the Rolls-Royce clutch for the large bore Bentley. | ||
| View original record | To Sg. from Hs/Rm. c. to Wor. c. to E. c. to By. Hs/Rm.5/KW.10.3.36. Bentley Clutch. Replying to Sg.8/E.6.3.36, the clutch we should propose to revert to on the large bore Bentley is the Rolls-Royce… | ||
| scan0236 | Proposed scheme for a clutch operating linkage with cantilever pedals for a Bentley. | ||
| View original record | P-R < MPD temp d sind LE Smith Any comments Please Rm X212 C.S. to Mr. Hives. Hs/Fm. R/HDY.1/HP.10.3.36. Clutch Operating Linkage Cantilever Pedals. Bentley. We send herewith M.Sch.4776 which shows… | ||
| scan0237 | Design notes on pedal shaft support, clutch pedal stop, compression rod forks, and a frame stiffener. | ||
| View original record | (sheet 2) E/HDY.1/HP.10.3.36. We show the ball jointed outer support for the pedal shaft as on N.Sch.4350, which can also be used on the 25-30 in due course. A downward stop for the clutch pedal… | ||
| scan0238 | The clutch operating linkage for cantilever pedals on a Bentley. | ||
| View original record | X212 CE Smith PY. C.E. Da. Hs. EMC. Hs/Dn. E/HDY.1/HP.11.3.36. Clutch Operating Linkage Cantilever Pedals - Bentley. We show on M.Sch.4781 herewith a temporary bracket for use with this scheme which… | ||
| scan0239 | Temporary bracket for the clutch operating linkage on a Bentley. | ||
| View original record | X212 Rm C.W.P. Des. Hs. FMG. HG/Im. E/HDY.1/HP.11.2.36. Clutch Operating Linkage Cantilever Pedals - Bentley. We show on N.Sch.4781 herewith a temporary bracket for use with this scheme which will… | ||
| scan0240 | Disagreeing with the use of the company's clutch on the 4¼-litre Bentley, favouring the Borg and Beck clutch. | ||
| View original record | S/W To Hs/Rm. from Sg. re Bentley Clutch. Sg5/E12.3.36 Copy to Wor.E.RV. I am in receipt of Hs/Rm.5/KW.10.3.36. I have re-read Hs/Rm.6/KW.19.11.35 and in view of the information given there relative… | ||
| scan0241 | Request to manufacture a further steel oil flinger for a Bentley Clutch, referencing a Borg & Beck drawing. | ||
| View original record | To RHC. X212 Hs/Smth.10/JH.16.3.36. Bentley Clutch. Will you please make us a further oil flinger to Borg & Beck drawing No. 41130/4, attached herewith. The flinger should be made of steel as… | ||
| scan0242 | Requesting the trial of a cast iron flywheel with a rubber base clutch on a Bentley. | ||
| View original record | To RHC. X212 Hs/Smth.21/KW.3.4.36. Bentley Flywheel. We wish to try a cast iron flywheel on Bentley so that we can use a rubber base clutch facing which apparently gives a very smooth take-up. Will… | ||
| scan0243 | Requesting the procurement of a specific Bentley clutch part from Messrs. Borg & Beck. | ||
| View original record | To Roy. + 212 Hs/Smith.14/JH. 6.4.36. Bentley Clutch. Will you please obtain from Messrs. Borg & Beck :- One 10-A-3 clutch to specification BB.242, but with red thrust springs and less driven plate.… | ||
| scan0244 | The testing and modification of a Bentley Flexible Flywheel to achieve the desired flexibility. | ||
| View original record | X 212 To Hs/Gry. HS/WB.2/JH.16.4.36. EX. 21404 Bentley Flexible Flywheel The flywheel plate Ex. 21405 as supplied (.1875" thick) was considered to be too stiff, both torsionally, and under axial load,… | ||
| scan0245 | Failure of a Bentley flexible flywheel and requesting new modified versions for continued testing. | ||
| View original record | To RHC. X212 Hs/Gry:23/KW.22.4.36. Bentley Flexible Flywheel. We think the reason that the first of these flywheels broke was that we tried to find out whether it would cope with the master period on… | ||
| scan0246 | Worsening clutch issue with 'jaggers at the start', arranging for an inspection. | ||
| View original record | LE Smith. X2126 See me Rm. S/W. Rm. re- B-2-GA. Cx2/KW25.4.36. The clutch of this car is getting worse from the point of view of jaggers at the start. I believe that you wished to see it if it got any… | ||
| scan0247 | Telegram about a tester visiting to try a bad Bentley clutch. | ||
| View original record | X212 27.4.36. COX, ROLHEAD, PICCY, LONDON. TESTER COMING TO TRY BAD BENTLEY CLUTCH TUESDAY NOON. ROBOTHAM, ROYCAR. | ||
| scan0248 | Order for six 10-inch Bentley clutch driven plates from Borg & Beck. | ||
| View original record | To Roy. X212 Hs/Smth.2/KW.29.4.36. Bentley Clutch. Will you please order from Borg & Beck - Six 10" Clutch Driven Plates lined with Ferodo "No.6" material. Hs/Smth. | ||
| scan0249 | Letter explaining why a car's clutch performed well during a test, despite having previous issues. | ||
| View original record | S/W. Rm. re- B-2-GA. Cx9/KW29.4.36. I am sorry your tester had a fruitless journey to London to test the clutch of this car, which during his test behaved well. This was due to the fact we had… | ||
| scan0250 | Internal memorandum discussing the investigation into clutch jaggers on Bentley and 25/30 HP models due to oil contamination. | ||
| View original record | x212 To E. c. to Sg. c. to Wor. c. to By. c. to Mx. Ha/Smth.9/KW.1.5.36. Bentley and 25/30 HP. Clutches. G.W.H. has been investigating the cause of the clutch jaggers in B-56-BN, and has found the… | ||
| scan0251 | Visit to address a customer complaint about a 4¼ litre Bentley clutch. | ||
| View original record | To D/BP. K212 Hs/Smth.15/KW.7.5.36. Bentley Clutch. We visited Kingsbury in connection with a clutch complaint on a customer's 4¼ litre Bentley yesterday. We took down with us a Borg & Beck driven… | ||
| scan0252 | From Sg. to Rm. regarding an investigation into a clutch issue on Professor Dodds' 4¼-litre car. | ||
| View original record | S/W To Rm. from Sg. re Professor Dodds - 4¼ -litre Sg3/E11.5.36 B.34-GA. I should be interested to hear the result of your man's visit to London last week to investigate the cause of the trouble with… | ||
| scan0253 | Damaged driven plate spline and clutch issue for Professor Dodds' Car (B-34-GA). | ||
| View original record | W/S - Sg. X212 Hs/Smth.6/KW.12.5.36. Professor Dodds' Car - B-34-GA. Re Sg.3/E.11.5.36. We found that the leading edge of the splines of the driven plate had been damaged, presumably when fitting the… | ||
| scan0254 | Modifications to the Bentley rear axle to improve performance for 'clutch jaggers'. | ||
| View original record | X212 To RHC. Hs/Smth.9/KW.13.5.36. Bentley Clutch Jaggers. We want to see whether we can make the Bentley an inherently good car for clutch jaggers by having a much stiffer rear axle, as they do on… | ||
| scan0255 | Requesting a delay in ordering 'No. 6' material for the Bentley & 25/30 HP clutch. | ||
| View original record | x 212 To Roy. Hs/Smth.14/JH.15.5.36. Bentley & 25/30 HP. Clutch. Re Roy/Ms.10/P.13.5.36. We are not yet in a position to say whether we want "No. 6" material on the next batch of clutches, but hope to… | ||
| scan0256 | Issues of 'jagger' in Borg & Beck clutches on Bentley 25/30 HP models, caused by parallelism problems. | ||
| View original record | To By. & Mx. X212 Hs/Smth.6/KW.15.5.36. Jaggers on Bentley & 25/30 HP. Clutches. We have had one or two cases of jagger with Borg & Beck clutches on the Bentley, which have only been cured by… | ||
| scan0257 | Urgent memo regarding recurring clutch issues with two Bentley trials cars and the inconvenience caused during the selling season. | ||
| View original record | URGENT S/W. Hs/Rm Cx8/KW18.5.36. Bentley Clutch We are returning to you tomorrow morning another of our Trials Cars - B-4-GA - as this clutch is not behaving as it should. Sg used the car at the… | ||
| scan0258 | 'jaggering' clutch issue on a Bentley Trials Coupé B-2-GA due to incorrect assembly. | ||
| View original record | To SG. c. to E. c. to MX. X212 HS/Smth/4/JH.19.5.36. Bentley Trials Coupé B-2-GA. ____________________________ The clutch on this car was jaggering badly, and on examination we found that due to… | ||
| scan0259 | Teething troubles and 'jaggering' issues with Bentley car clutches. | ||
| View original record | W/S - Cx. X~12 Hs/Rm.2/KW.20.5.36. Bentley Clutch. Referring to Cx.8/KW.18.5.36. It is unfortunate that you have had two Bentley trials cars with jaggering clutches. As we have previously pointed out,… | ||
| scan0260 | Request to manufacture a new lever for a Bentley clutch to reduce separation by 11% and lighten the pedal load. | ||
| View original record | To RHC. X212 Hs/Smth.14.11.6.36. Bentley Clutch. We think we ought to be able to use a smaller separation, and hence have a lighter pedal load on the Bentley clutch. Will you please make us a lever to… | ||
| scan0261 | Return of a Bentley B-2-GA for repairs due to clutch, brake, and engine issues. | ||
| View original record | To Hd. X12 Hs/Smth.2/JH.16.6.36. Trials Bentley B-2-GA. Confirming our telephone conversation we are sending this car over to you. The complaints are that it needs decarbonising and the clutch is… | ||
| scan0262 | Irregularities in the thickness of Borg & Beck clutch driven plates. | ||
| View original record | To Mx. c. to By. c. to Sft. c. to RHC. c.to Hd. X212 Hs/Smth.10/KW.17.6.36. Bentley Borg & Beck. We find that there is considerable irregularity in the thickness of the facings on some of the 10" Borg… | ||
| scan0263 | Requesting to try the successful Ferodo 'No.6' Bentley clutch material on a Rolls-Royce segmented driven plate. | ||
| View original record | To RHC, x-212 Hs/Smth.15/JH.1.7.36. Bentley Clutch. Ferodo "No.6" material is very successful on the Bentley clutch. We now want to try it on a R.R. type of segmented driven plate, at the same time… | ||
| scan0264 | Supply, specifications, and fitting instructions for various clutch thrust springs. | ||
| View original record | To RHC. x v12 HS/Smth.6/JH. 9.7.36: B-56-BN - Clutch. We handed to T.Fisher yesterday 9 black thrust springs and 9 white ones for the 10.A.3. type Borg & Beck clutch. The loadings of these should be… | ||
| scan0265 | Depot sheet describing the method of inspection for 'jaggering' Bentley 4¼ litre and 25/30 HP clutches. | ||
| View original record | X212 To Hd. (FOR DEPOT SHEET). Hs/Smth.18/KW.13.7.36. Will you please issue a Depot Sheet regarding the method of inspection of Bentley 4¼ litre and 25/30 HP. clutches which are jaggering. The two… | ||
| scan0266 | Transmission rattle and the use of a propellor shaft damper. | ||
| View original record | -2- Occasionally it may be found that while the clutch is free from shudder, there is a tendency for a rattle in the transmission to occur as the car moves off from rest. This will probably be… | ||
| scan0267 | Unsatisfactory downward stop for the Bentley clutch pedal. | ||
| View original record | To E. c. to Da. c. to Hdy. X212 Hs/Smth.17/KW.17.7.36. Bentley Clutch. The downward stop for the Bentley clutch pedal is very unsatisfactory. It consists of contact between the pedal lever and the… | ||
| scan0268 | Request to prepare six additional levers for a Bentley Clutch, three for Rm.149 and three for Rm.159. | ||
| View original record | To RHC. X212 Hs/Smth.9/KW.17.7.36. Bentley Clutch. Will you please prepare three more levers to Rm.149 and three more to Rm.159. Hs/Smth. | ||
| scan0269 | Experimental Department's request for a downward stop on the Bentley clutch. | ||
| View original record | XU2 SY. from E/HDY. c.c. Mr. RWG. Ba. E/HDY.1/HP.8.8.36. Bentley Clutch. The Experimental Department have asked for a downward stop on the crankcase of the Bentley as is provided on the 25/30 and the… | ||
| scan0270 | Requesting the trial of a ventilated clutch on a Bentley, including a modification to the clutch casing. | ||
| View original record | x42 RHC. From Hs/Smth. Hs/Smth.15/WA.10.8.36. BENTLEY CLUTCH. We want to try a ventilated clutch on the Bentley. This is to give increased durability particularly with "rubber" facings, use of weaker… | ||
| scan0271 | The preference for forged forks over square bar forks for the Bentley clutch operation. | ||
| View original record | X212 DR. C. Er.Des. RHC. hs/Fm. E/HDY.1/HP.13.8.36. Bentley. Clutch operation with cantilever pedals M.Sch.4776. With reference to the forks on the rod between the intermediate lever and the clutch… | ||
| scan0272 | Clutch jaggering on Bentley 4 1/4 Litre & 25/30 HP models and the recommended fitting of a propeller shaft damper. | ||
| View original record | To Hd. (FOR DEPOT SHEET.) Hs/Smth.8/JH.13.8.36. Clutch - Bentley 4 1/4 Litre & 25/30 HP. Further to Hs/Smth.18/KW.13.7.36. As described in the above memo, the clutch is often said to be jaggering when… | ||
| scan0273 | Request to manufacture 27 thrust springs for Bentley clutches and to fit a set to unit 5-B-IV. | ||
| View original record | To RHC. Hs/Smth.14/JH. 20.8.36. Bentley Clutch Springs. Will you please make us a further 27 (3 sets) of thrust springs to Ex.23740, but with free length 2.720". The rate is 165 lbs/ins. and the load… | ||
| scan0274 | Requesting modifications to the clutch and propeller shaft for car B-56-BN. | ||
| View original record | To RHC. x2/2 Hs/Smth.4/KW.24.8.36. B-56-BN Clutch. The thrust springs in this car are not quite strong enough. When it comes into the shop will you please change them for a set to Rm.196. We want the… | ||
| scan0275 | The fitting of cream-coloured clutch thrust springs to a ventilated Bentley clutch. | ||
| View original record | To RHC. x212 Hs/Smth.19/KW.31.8.36. Bentley Clutch. We have handed to T. Fisher two sets of clutch thrust springs, coloured cream. Will you please fit one set to the ventilated clutch No.1. The finger… | ||
| scan0276 | Clutch finger issues found on Mr. Ferguson's Bentley, including details of unevenness and testing inconsistencies. | ||
| View original record | To Hs/Rm. X2/2 Cricklewood, Oct. 6th, 1936. I have been at Kingsbury this morning. Mr. Ferguson's Bentley is not ready. It was decided to have a look at the clutch and at the same time attend to the… | ||
| scan0277 | Faulty clutch plate and subsequent vibration issues on a Barclay's Bentley. | ||
| View original record | (8) Oct. 6th, 1936. I am sending you a clutch plate taken out of B-3-GP, Barclay's Bentley. This plate has been losing clearance, and has been adjusted three times during 3,911 miles. I came in again… | ||
| scan0278 | Timing mark misalignment on Bentley & 30 HP clutch units due to the lack of a definite locating pin. | ||
| View original record | X 212 To Rm. c. to E. c. to By. Hs/GWH.21/KW.13.10.36. Bentley & 30 HP. Clutch Changes. There have been several instances when changing a complete clutch unit, the time markings on the clutch case… | ||
| scan0279 | On timing mark discrepancies discovered during Bentley & 30 HP clutch changes and the proposed solution. | ||
| View original record | Y212 To Rm. c.c. to E. c.c. to By. Hs/GWH.21/KW.13.10.36. L E Smith - Please note Rm Bentley & 30 HP. Clutch Changes. There have been several instances when changing a complete clutch unit, the time… | ||
| scan0280 | Confirming modifications to a Bentley clutch to gain experience for use on experimental cars. | ||
| View original record | X212 To Hs/F.Ll.Smith. Hs/Rm.31/KW.19.10.36. This is to confirm that you will arrange a Bentley clutch with increased cushioning and increased pedal travel to take care of the extra plate movement… | ||
| scan0281 | Enquiry into Bentley flywheels at Kingsbury. | ||
| View original record | To Hs/Rm. Y 212. Cricklewood. October 22nd.1936. BENTLEY I have made enquiries at Kingsbury re Flywheels on Bentley. Their report is no flywheel has been changed during their existence for any trouble… | ||
| scan0282 | Enquiry into Bentley flywheels, supporting the use of a solid ring and flywheel design. | ||
| View original record | 212 To Hs/Rm. Cricklewood. October 22nd.1936. BENTLEY I have made enquiries at Kingsbury re Flywheels on Bentley. Their report is no flywheel has been changed during their existence for any trouble… | ||
| scan0283 | The preparation of fabrics for clutch modifications on car chassis 1-B-IV. | ||
| View original record | To RHC. X 212 Rm/Smth.15/JH. 26.10.36: 1-B-IV. We shall shortly be sending this car into the shop for clutch modifications as below. Will you please prepare the necessary fabrics. (1) Ventilated… | ||
| scan0284 | The despatch of two faulty Bentley clutches to Messrs. Borg & Beck for rectification. | ||
| View original record | To RHC. V212 Rm/Smth. 23/JH. 26.10.36. Bentley Clutches. Will you please despatch the following two clutches to Messrs. Borg & Beck, with instructions to rectify faulty finger adjustment and reface… | ||
| scan0285 | The testing and rebuilding of a Bentley Flexible Flywheel. | ||
| View original record | J 212 To RHC. From Rm/Gry. Rm/Gry.20/MJ.28.10.36. BENTLEY FLEXIBLE FLYWHEEL. Swdl. will shortly be instructing this to be fitted to a test bed engine in order to determine at what speed and why it… | ||
| scan0286 | Fixing of clutches and timing markings on 25/30 HP and Bentley models. | ||
| View original record | R 212 To By. c. to Rm. Cricklewood, 2nd. Nov. 1936. 25/30 HP. & Bentley Flywheel & Clutch. With regard to the fixing of the clutches your reference By/Twd. My report concerned Bentley chiefly as more… | ||
| scan0287 | Responding to Bentley quarterly complaints regarding issues with specific vehicles. | ||
| View original record | Le SMITH 212 To: Rm. Hd/WT18/MW3.11.36. Re: BENTLEY QUARTERLY COMPLAINTS. --------------------------- In reply to your memo. Rm/Smth9/JH30.10.36. no propeller shaft dampers were fitted during the… | ||
| scan0288 | Requesting the replacement of clutch No.15 on a B.7 unit. | ||
| View original record | 212 To RHC. Rm/Smth.2/GR.2.11.36. B.7 UNIT. Will you please remove clutch No.15 from this unit, and fit in its place the one we are handing to T. Fisher. Rm/Smth. | ||
| scan0289 | Modifications for a Bentley clutch to be ordered from Borg & Beck. | ||
| View original record | 212 To Roy. Rm/Smth.5/JH.5.11.36. Bentley Clutch. Will you please pass an order to Borg & Beck for one 10-A-6 type clutch, but with the following modifications. (1) Extra bearing surface for pressure… | ||
| scan0290 | Summary of the present clutch position for the Phantom III, detailing troubles and friction materials. | ||
| View original record | THO 212 To E. from Rm/Smth. c.c. to Hs. c.c. to By. c.c. to Da. c.c. to Hdy. File Rm/Smth.39/AP.15.11.36. CLUTCHES. The following is a summary of our present clutch position:- PHANTOM III Present… | ||
| scan0291 | Analysis of different clutch plate materials and driven plate designs. | ||
| View original record | Rm/Smth.39/AP.16.11.36. Ferodo VM.20 (Moulded) is the material we hope to go over to. It is the most widely used material in this country. Is cheap, strong (requires fewer rivets) very durable, and… | ||
| scan0292 | Clutch design improvements, manufacturing specifications, and test results for the Phantom III clutch. | ||
| View original record | -3- Rm/Smth.39/Ar.16.11.36. B. & B. say that they find in America that wide facings are good for judder. This is partially confirmed by the success of the original Long plate on 35-EX. We are trying a… | ||
| scan0293 | Tests concerning reverse jaggers, axle torsional flexibility, and various methods for reducing pedal pressure. | ||
| View original record | -4- (5) Fitted wooden blocks between rear springs to cut out all spring movement. This improved reverse jaggers, making forward and reverse equally bad. This confirms that reason why reverse is worse… | ||
| scan0294 | Technical report discussing issues and proposed improvements for a clutch system, focusing on squeaks, life, stopping, and bearings. | ||
| View original record | -5- Rm/Smth.39/AP.16.11.36. pedal load at medium and high speeds. 3. Squeaks. The only driven plate with which squeaks are likely to be a problem is the R.R. one and we have had no definite evidence… | ||
| scan0295 | Technical report on clutch design issues and proposed solutions for both Rolls-Royce and Bentley vehicles. | ||
| View original record | -6- Hm/Smth.39/AP.16.11.36. (1) R.R. or, if former squeaks, cross cushion plate with VM.20 facings and .030 cushioning. The present separation should be sufficient for the R.R. plate, but the cross… | ||
| scan0296 | Clutch manufacturing faults, future clutch designs for Bentley, and experimental clutches on Phantom III cars. | ||
| View original record | -7- (3) Manufacturing Faults. These mainly consist of:- (a) Bad finger setting. (b) Driven plates irregular in thickness. (c) Outer diameter of cover not true to size. (d) Bad finish. (e) Pressure… | ||
| scan0297 | Technical report detailing clutch specifications and modifications for various vehicle models. | ||
| View original record | -8- Rm/Smth.39/AP.16.11.36. 35-EX. As 33.EX., but with weaker springs Rm.31. 36-EX. R.R. plate, .040 cushioning, VM.20 graphite. Flexible Hub Rm.138. 37-EX. R.R. plate, .040 cushioning, VM.20. No… | ||
| scan0298 | List of specifications and modifications for clutch and pedal components. | ||
| View original record | -9- Rm/Smth.39/AP.16.11.36. G.B.1.V. When in France had 11" clutch, No.6. facings, stronger springs. N.Sch.4776 pedals with Rm.159 operating lever giving 15% reduction in pedal pressure. B.23.AE.… | ||
| scan0299 | Graph showing the characteristics of a long semi-centrifugal clutch against motor R.P.M. | ||
| View original record | CHARACTERISTICS OF LONG SEMI-CENTRIFUGAL CLUTCH ADVERTISED IN S.A.E. JOURNAL APRIL 1936 MOTOR R.P.M. 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 EFFECTIVE LOAD ON PRESSURE PLATE 200 400 600 800… | ||
| scan0300 | Comparative table of clutch particulars for the PH III, 25/30, and BENT 4¼ models. | ||
| View original record | PH III | 25/30 | BENT 4¼ CLUTCH ARRGT. | G84357 | G57170 | G132099 PEDAL ARRGT. | F87352 | F61066 | GL 799 WT. OF FLYWHEEL & CLUTCH. lbs | 77 | 71 | 64 INERTIA FLYWHEEL & CLUTCH. lbs ins² | 2200 |… | ||
| scan0301 | Cost and design of cantilever pedals for the Bentley and the use of loose starter motor rings for the Wraith. | ||
| View original record | 212 To Rm/Smth. from Rm. Rm.8/AP.16.11.36. We note you suggest using cantilever pedals on the Bentley. What is the relative cost of cantilever pedals to standard pedals.? Are you satisfied that the… | ||
| scan0302 | Proposal to add three ventilation holes to the standard Bentley clutch casing. | ||
| View original record | Dx. RM 212 c.E.Da.Rq.RHC. By E/HDY.3/HP.19.11.36. Bentley Clutch: We send herewith a print of N.Sch. 4953 showing three large holes in the standard clutch casing for ventilation, on the lines of those… | ||
| scan0303 | Sending a summary on the present position of clutches, with a focus on manufacture and fitting. | ||
| View original record | 212 To RHC. from Rm/Smth. Rm/Smth.9/AP.20.11.36. CLUTCHES. We send you herewith, at the request of Hs., copy of summary of the present position of the above, reference Rm/Smth.39/AP.16.11.36. We… | ||
| scan0304 | Proposal to add three large ventilation holes to the standard Bentley clutch casing, similar to the Essex Terraplane, for economy. | ||
| View original record | EX. RM J212 L.e. Smith. We should try this Olm c.E.Da.RM.RHC. By E/HDY.3/HP.19.11.36. Bentley Clutch: We send herewith a print of N.Sch. 4953 showing three large holes in the standard clutch casing… | ||
| scan0305 | The estimated factory cost increase for fitting Bentley Cantilever Pedals. | ||
| View original record | L.P. SMITH File 212 Rm/Smth. E/Lid.1/HP.1.12.36. Bentley Cantilever Pedals. Section 7100. In reply to your verbal enquiry, it is estimated that the cantilever pedals (N.Sch.4776,4871) will increase… | ||
| scan0306 | Internal enquiry regarding the durability of starter gear teeth on 25 HP and Bentley flywheels. | ||
| View original record | 212 To Hd. from Rm/Smth. c. to Hs. c. to N-Br. c. to K-PK. c. to Rm/GWH. c. to R. c. to Hdy. Rm/Smth11/R.1.12.36. 25 H.P. & BENTLEY FLYWHEELS. We recently made enquiries at the Repair Dept. regarding… | ||
| scan0307 | Frequently burnt-out clutches in Bentley C Series vehicles and a proposed solution. | ||
| View original record | To Rm. 212 Kingsbury. Dec. 3rd. 1936. Bentley. Clutch Complaints C Series. The early type clutches are coming in burnt out. frequently. Would it not be possible to obtain higher rated springs for… | ||
| scan0308 | Requesting an urgent order for a Bentley clutch with special features from Borg & Beck. | ||
| View original record | 212 To:Roy. Rm/Smth.21/JH.4.12.36. Bentley Clutch. Will you please pass an order to Borg & Beck for a 10-A-6 type ventilated clutch with the following special features :- (1) Green thrust springs. (2)… | ||
| scan0309 | Bentley clutch complaints and potential solutions. | ||
| View original record | 212 Rm/GWH. from Rm. Rm10/R.4.12.36. BENTLEY CLUTCH COMPLAINTS. Thanks for your note of December 3rd. I recommended to C. twelve months ago, as you will see from the attached copy memo, that if a… | ||
| scan0310 | The castellated eyebolt adjusting nuts for Bentley & 25/30 clutches, advising service stations to return faulty units to the Works. | ||
| View original record | Hd. from Rm/Smth. c. to Mx. c. to RHC. c. to By. c. to GWH 8212. Rm/Smth4/R.17.12.3 . BENTLEY & 25/30 - CLUTCH. Recent and all future B. & B. clutches will be found to have castellations on the… | ||
| scan0311 | Cost-saving modifications for the Bentley cantilever pedal linkage. | ||
| View original record | 212 E. from Rm/Smth. c. to By. c. to Da. c. to Hdy. Rm/Smth6/R.17.12.36. BENTLEY CANTILEVER PEDALS. N.Sch.4776 is satisfactory with flexible engine mountings, but it will cost £1.12.6 per car more… | ||
| scan0312 | Clutch failure for Bentley chassis B.99-BL, owned by Mr. Levey, detailing its service history and attributing the issue to the customer's driving style. | ||
| View original record | SMTH MS. Rm. 212 BY.S/C.29.12.36. BENTLEY CHASSIS - RE: CHASSIS B.99-BL. MR. LEVEY. The Bentley Service Department's note of December 17th. No. 132, points out that this car was abandoned for clutch… | ||
| scan0313 | Faulty clutch found during a car test for chassis number B.4.JD. | ||
| View original record | 2/2. S/W. Rm. LE12/C/23.12.36. L E SMITH Re Chassis No. B.4.JD. When we tested this car we found the clutch was very erratic and jaggered badly after use in traffic. The Works are supplying a new… | ||
| scan0314 | Return of a lined friction plate from a 4¼-litre Bentley chassis for examination due to a slipping clutch. | ||
| View original record | Smith 212. K/W. KC to..Rm/Smth. K/KC/DPB/2.1.37. We are returning to you under cover of our advice note No.93, the lined friction plate removed from 4¼-litre Bentley chassis No.B.92.GA, on the… | ||
| scan0315 | Request to cut ventilation holes in a clutch case from the Unit Test Beds. | ||
| View original record | 212 HPS. from Rm/Smth. Rm/Smth5/R.13.2.37. A clutch case is being sent in from the Unit Test Beds. Will you please cut ventilation holes to N.Sch. 4953 in it. Rm/Smth. | ||
| scan0316 | Jaggering clutch found on chassis B.126.JD from Car Mart Stock. | ||
| View original record | Smith 212. S/S. Bx. Copy to Mr. Copy to Mr. Copy to Rm. L16/C/4.3.37. Re Chassis No. B.126.JD. Car Mart Stock. When we tested this car we found the clutch was jaggering. We have consequently sent the… | ||
| scan0317 | Propshaft dampers for 25/30 and Bentley models. | ||
| View original record | x Clutch Bentley 25/30 + Bent. prop. shaft dampers. 350 25/30 without dampers 525 Bent. Service have fitted 60, mostly to Bentleys. Do not expect to have to fit dampers to more than a small fraction… | ||
| scan0318 | Order for Bentley clutch facings from Ferodo. | ||
| View original record | To Roy. 212 Rm/Smth.3/JH.7.5.37. Bentley Clutch. Will you please pass the Ferodo an order for :- Four clutch facings 10" x 6" x 1/8" in rubber bonded material with chevron construction. Rm/Smth. | ||
| scan0319 | Clutch driven disc from Borg & Beck Co. of America, requiring modification to fit a Bentley. | ||
| View original record | HPS. from Rm/Smth. 212 J Rm/Smth.10/AP.11.5.37 BENTLEY CLUTCH We have in our possession a clutch driven disc made by the Borg & Beck Co. of America, and we wish to fit it to a Bentley. The hub will… | ||
| scan0320 | Cause and remedy for rattling Bentley clutch and brake pedals. | ||
| View original record | To Rm/GWH. from RHC/Cy. C. to B. [Struck through] C. to RHC. [Struck through] 212 RHC/Cy.9/LS.13.5.37. BENTLEY CLUTCH & BRAKE PEDALS - RATTLES. On looking into this job we find the following… | ||
| scan0321 | Order be passed to Borg & Beck for Bentley clutch plates. | ||
| View original record | Roy. from Rm/NRC. c. G/JWH. 212 Rm/NRC6/R.27.7.37. re: BENTLEY CLUTCH PLATES. Will you please pass an order to Borg & Beck for the following:- 6 - 10" DRIVEN PLATE ASSEMBLIES, Part No.41132 Modified,… | ||
| scan0322 | Instruction to fit an American-made Long clutch plate with Thermoid facings to chassis 5.B.IV. | ||
| View original record | HPS. from Rm/NRC. c. Rm/FD. 212 Rm/NRC1/R.29.7.37. re: CHASSIS 5.B.IV. Please fit to the above car one clutch plate herewith. This is a Long plate of American manufacture, and fitted with Thermoid… | ||
| scan0323 | Comparison table of specifications for P.III, 25/30, and Bentley models, including clutch data and other metrics. | ||
| View original record | 212 COPY FOR FILES. also 312, 517, 1110 JULY 1937 FOR COMPARISON P.III. 25/30. BENTLEY 13.5" 11" 10" (1) 356 190 208 (2) Clutch complete. 77 71 64 Note our relatively heavy fly-wheels. (3) 1932 1320… | ||
| scan0324 | Specifications for a Single Plate 12.C.B. Clutch as supplied to Lincoln. | ||
| View original record | COPY FOR FILES Original in File 1110. February 14, 1934. Single Plate 12.C.B. Clutch as supplied Lincoln. 1. Max. torque motor which may be used with clutch in Pass. car service - 325 lbs. ft. 2.… | ||
| scan0325 | Letter from Long Manufacturing Co. regarding specifications for a 12' single plate clutch. | ||
| View original record | COPY FOR FILES. Original in File 1110. LONG MANUFACTURING COMPANY DETROIT. February 20, 1934. Mr.Robotham, c/o Co. Dunwoody, 430 Gray Avenue, Webster Grove, Mo. Dear Mr.Robotham, When you were here… | ||
| scan0326 | Instructions for facing off the hubs of five Bentley 10' clutch plates. | ||
| View original record | HPS. from Rm/NRC. 212 Rm/NRC.10/AP.7.8.37 BENTLEY CLUTCH Herewith are five Long 10" clutch plates. Please face off the hubs to sketch herewith. Please take all possible care to prevent swarf or… | ||
| scan0327 | Testing and recommendations for Thermoid clutch facings on 25/30 and Bentley models. | ||
| View original record | To By. c. to Sg. c. to Hs. a. to Mx. c. to LA. 212 Rm/NRC.7/JH.10.9.37. X re Thermoid Facings on 25/30 and Bentley Clutch. Thermoid faced clutches have been run on Experimental Bentleys as follows :-… | ||
| scan0328 | Re-directing parts for a Bentley Clutch Servo to be fitted to a different chassis. | ||
| View original record | To HPS. from Rm/NRC. Rm/NRC.2/MH.3.10.37/ RE BENTLEY CLUTCH SERVO. With reference to the parts instructed in Rm/NRC.9/JH.31.8.37., for Chassis 6-D-IV. Will you please now fit these parts to B-23-AE… | ||
| scan0329 | New Thermoid Facing for the Bentley Clutch to cure 'jagger troubles'. | ||
| View original record | RHC from Hs/LS. Copy to Rm. 212 Hs./LS.1/T14.10.37. BENTLEY CLUTCH The Experimental Dept. shortly hope to release the new Thermoid Facing for the Bentley Clutch. It is hoped that this will prove a… | ||
| scan0330 | Request for details and supply department for materials for old type Bentley clutches. | ||
| View original record | Rm. --- D/BP/WK5/JP.16/10/37. -------------------- 212 CHANDLER - Please reply. Rm We have received a request from our Kingsbury Service Station to supply 10 sets of material for old type Bentley… | ||
| scan0331 | Limited supply of Graphite Bronze Facings for 3 1/2 litre Bentley Clutches. | ||
| View original record | D/BP. 212 Rm/NRC.17/JH.21.10.37. Re 3 1/2 litre Bentley Clutches. We regret delay in replying to D/BP/WK5/JP.16.10.37. as the writer visited kingsbury on 19th. and took with him two pairs of Graphite… | ||
| scan0332 | Works order for the supply of material for old type Bentley clutches to Bentley Motors (1931) Ltd. | ||
| View original record | R.R. 616Bn. (20H) (44884 28-7-37) G.C.B. BENTLEY. 212 BN 13022 WORKS ORDER No. 37000. Date 22.10.37. CHASSIS NO ORDER OR CONTRACT REF. 1832.15.10.37. Customer Messrs.Bentley Motors(1931)Ltd.,Kingsbury… | ||
| scan0333 | Partial fulfilment of an order for material for old type Bentley clutches due to stock shortages. | ||
| View original record | D/BP. c. to K. - Pk. 212 Rm/NRC.14/JH.26.10.37. re Bn.13022 0/N.37000. Material for Old Type Bentley Clutches. With reference to the above order for 10 sets of Graphite bronze lining, we cannot spare… | ||
| scan0334 | Proposing a simple rig for testing clutch springs on 4¼ Litre Bentley & 25/30 models. | ||
| View original record | To Rm. from Rm/NRC. Rm/NRC.9/MH.8.11.37. X 212 Re 4¼ Litre Bentley & 25/30 Clutch. When fitting Thermoid faced plates to customer's cars to cure complaints of jaggers, it is essential to insure that… | ||
| scan0335 | Confirming the standardisation of 10-inch Bentley clutch plates to use Thermoid facings. | ||
| View original record | To Roy. from Rm/NRC. 212 Rm/NRC.9/MH.16.11.37. RE 10" CLUTCH - BENTLEY. We confirm that the Standardisation Sheet has now been agreed to enable us to instruct Borg & Beck to fit Thermoid facings to… | ||
| scan0336 | Requesting an order for 20/25 and 3 1/2 litre clutch springs due to depleted stock in stores. | ||
| View original record | 212 also 512 To Hd. Rm/NRC.21/JH.19.11.37. 20/25 and 3½ litre Clutch Springs E.54136. (Salters). We have exhausted the stock of above springs in R.O. stores. May we suggest that you order at least 100… | ||
| scan0337 | The standardisation of Thermoid clutch facings for the 4 1/4 Litre Bentley. | ||
| View original record | 2/2 To RHC. from Rm/NRC. c. By. Rm/NRC.3/MH.23.11.37. 4 1/4 LITRE BENTLEY. RE THERMOID CLUTCH FACINGS. Sg. and Hs. have agreed to the standardisation sheet for the above, and the only reason it has… | ||
| scan0338 | Despatch of 45 Bentley Clutch Plates to Borg and Beck for fitting Thermoid Facings. | ||
| View original record | fil 212 ROY/Ms. c. Rm & R.C. Chassis Production Control Office. RHC/RMN.8/JWA+24.11.37. We are placing in the Stores, 45 Bentley Clutch Plates, which, as per RHC's instructions, are to be despatched… | ||
| scan0339 | The supply and specification of 10' Thermoid faced clutches for Bentley vehicles. | ||
| View original record | + 212. To RHC. from Rm/NRC. c. By. c. Roy. Rm/NRC.6/MH.26.11.37. RE BENTLEY 10" THERMOID FACED CLUTCH. Borg & Beck advise me by 'phone that they can commence deliveries of the 142 assemblies on order… | ||
| scan0340 | Request to prepare two S/M rings for testing the 20/25 and 3 1/2 litre clutch. | ||
| View original record | HPS. 212 Rm/NRC.16/JH.6.12.37. re 20/25 and 3 1/2 litre clutch. Please prepare two rings of S/M 10.500 outside dia. 8.400 inside dia. by .093 thick. +20 -20 These are required as packings for metallic… | ||
| scan0341 | Instructions for fitting new parts to a 20/25 & 3 1/2 litre clutch after a '1000 slip' test. | ||
| View original record | 212. HPS. Rm/NRC.7/JH.8.12.37. CLUTCH 20/25 & 3 1/2 litre. On completion of the "1000 slip" test on No.11 unit, please fit the same clutch with the thin segmental facings and the two steel rings… | ||
| scan0342 | The dynamometer testing of Graphite Bronze Clutch Facings for 20/25 and 3½ litre Bentley models. | ||
| View original record | To Hs. c. to By. c. to Da. c. to Mx. 212 Rm/NRC.4/JH.13.12.37. Tests of Graphite Bronze Clutch Facings. 20/25 & 3½ litre Bentley. Some twenty of the above cars have been fitted with metallic clutch… | ||
| scan0343 | Results of clutch reliability and wear tests using different facing materials. | ||
| View original record | -2- Rm/NRC.4/JH.13.12.37. in a short time rather than to test the general reliability of the clutch. Arms were arranged from the operating levers so that the pressure plate movement was increased by… | ||
| scan0344 | Test report on clutch modifications, comparing Ferodo and Graphite Bronze facings. | ||
| View original record | -3- We then fitted new springs with .080 discs of Ferodo VM.20 at the pressure plate end of each, this however only formed very incomplete heat insulation, because the springs are recessed 3/8" into… | ||
| scan0345 | The testing of clutch facings, recommending the continued use of Graphite Bronze facings for 20/25 and 3 1/2 litre Bentley models. | ||
| View original record | -4- Rm/NRC.4/JH.13.12.37. At the conclusion of the test the bronze had "picked-up" and was adhering to the steel plate in patches, although the wear of the driven plate was less than .001. The facings… | ||
| scan0346 | Graph plotting the wear of different driving face materials against the number of slips. | ||
| View original record | WEAR OF EACH DRIVING FACE. RADII SPRINGS 141 LBS. u = .18 TAKE UP NORMAL BRONZE SPRINGS 161 LBS. u = .157 TAKE UP QUICK WEAR RATIO 5.4 TO 1 WEAR RATIO 5.5 TO 1 WEAR RATIO 7 TO 1 WEAR RATIO 8 TO 1 WEAR… | ||
| scan0347 | The mileage of Thermoid faced clutches in experimental Bentley cars. | ||
| View original record | To By. c. to Hs. 212 Rm/NRC.3/JH.12.1.38. re Thermoid - Bentley. The original Thermoid faced clutches in Exptl. Bentley cars, have covered the following mileages to date - B.23.AE. Fitted 24.6.37.… | ||
| scan0348 | New part number for Graphite Bronze clutch facings for the 20/25 HP & 3½-Litre models. | ||
| View original record | To Hd. from Rm/NRC. c. Roy. Mt. B. H. K. c. Hy. γ 212 Rm/NRC.)/MMT.22.1.38. 20/25 H.P. & 3½-LITRE CLUTCH. Please note that the Part No. G.57314 has been allotted to the Graphite Bronze facings which… | ||
| scan0349 | Request to prepare parts for a Bentley 10' Clutch with Centrifugal Assistance. | ||
| View original record | HPS. from Rm/NRC. 2/2 Rm/NRC.4/AP.26.1.38 BENTLEY Centrifugal Assistance, 10" Clutch. Please prepare one set of parts to Rm.493 herewith, i.e. 3 off each part. Rm/NRC. | ||
| scan0350 | Inquiring about wear and slack found in the bush for the 20/25 HP and Bentley clutch. | ||
| View original record | W/K. To Rm/GWH. from Rm/NRC. 212 also 572 Rm/NRC.9/AP.25.2.38 Re. 20/25.HP. and BENTLEY CLUTCH. We are interested in your Rm/GWH.19/N.21.2.38. Could you kindly give us some idea of the extent of the… | ||
| scan0351 | Chasing the completion of parts for a Bentley 10' centrifugal assistance clutch. | ||
| View original record | 212. To HPS. Rm/NRC.1/JH.15.3.38. BENTLEY. Centrifugal Assistance 10" clutch. ? With reference to Rm/NRC.4/AP.26.1.38. asking you to prepare the parts to Rm.493, will you please urge completion. The… | ||
| scan0352 | Instruction to fit a 10' Borg & Beck clutch with Centrifugal Assistance to a car. | ||
| View original record | 212 To HPS. from Rm/NRC. c. HPS/PS. c. Rm/FD. Rm/NRC.2/MH.18.3.38. 3.B.IV. CLUTCH, CENTRIFUGAL ASSISTANCE. Please fit to the above car when it next comes in, the 10" Borg & Beck clutch with… | ||
| scan0353 | Requesting an order for a 10 C.F. Clutch for experimental work on a Bentley. | ||
| View original record | 212. To Roy. c. to G/JWH. Rm/NRC.11/JH.19.3.38. 10 C.F. CLUTCH BB.460.(Bentley.) Please send order to Borg & Beck for one 10" Long Type C.F. Clutch, spec. BB.460. This one for experimental work will… | ||
| scan0354 | Fitting of heavier weights for centrifugal clutch assistance. | ||
| View original record | 212. TO HPS. c. to Rm/FD. Rm/NRC.1/JH.5.5.38. Unit No.B.32 on 3.B.IV. Centrifugal Assistance for Clutch. The heavier weights Rm.517 are now made. Will you please arrange to fit these in place of the… | ||
| scan0355 | Instructions for preparing a modified flexible flywheel for a Wraith or Bentley model, detailing parts and modifications. | ||
| View original record | 212 also 612 To HPS. c. to Rm/Wym. c. to Rm/FD. Rm/NRC.8/JH.3.6.38. FLEXIBLE FLYWHEEL, WRAITH OR BENTLEY. Please prepare another flexible flywheel to the following drawings herewith. RM.533 Arrg.… | ||
| scan0356 | Requesting facilities to change the springs in several 10' Bentley clutches as a temporary measure. | ||
| View original record | y 212 To HPS. from Rm/NRC. Rm/NRC.10/MH.29.6.38. BENTLEY CLUTCH. It is probable that during the next few days we may want to change the springs in several 10" clutches for Production or Test. We would… | ||
| scan0357 | Modification of Bentley clutches by replacing black springs with green ones to correct excessive pedal pressure. | ||
| View original record | To RHC. c. to IA. c. to Roy/MS. c. to G/Mt. 212 Rm/NRC.18/JH,29.6.38. CLUTCH BENTLEY. The present stock of 10" Borg & Beck clutches have Black springs, and these give a higher thrust poundage than was… | ||
| scan0358 | Letter to Borg & Beck Company Ltd. regarding the spring poundage for a 10' Bentley clutch. | ||
| View original record | c. RHO. c. LA. c. Roy/Ms. c. G/Mt. Rm/NRO3/R. 29th June, 1938. Messrs. Borg & Beck Company Ltd., Tachbrook Road, LEAMINGTON SPA. (For the attention of Mr. Barker) Dear Sirs, re: 10" Clutch - Bentley.… | ||
| scan0359 | Letter from Borg & Beck Co. Ltd. discussing clutch spring modifications due to excessive pedal pressure. | ||
| View original record | Borg & Beck Co.Ltd. -2- 29.6.38. with the result that the total thrust is considerably higher than that anticipated, the actual poundage being still further increased by the fact that the Black spring… | ||
| scan0360 | Discrepancy with a 10' clutch spring's working length and thrust rate. | ||
| View original record | Copy for Files. To Rm. from Rm/NRC. 10" CLUTCH. B & B in their letter herewith frankly admit they had overlooked the effect of the working length of the spring being less than the nominal. We pointed… | ||
| scan0361 | Letter from Borg & Beck Company Ltd regarding a change in thrust spring pressure for a Bentley 10.A3 clutch. | ||
| View original record | Telegrams BORGANBECK, LEAMINGTON SPA. Telephone LEAMINGTON SPA 1550-1. BORG & BECK COMPANY LTD MANUFACTURERS OF CLUTCHES. Registered Office BROOK HOUSE, LANGHAM STREET, LONDON, W.1. WORKS: Tachbrook… | ||
| scan0362 | Investigation into faulty Bentley clutch springs from an outside supplier causing excessive pedal loading. | ||
| View original record | To BY. & Rm. From RHC. c. to Hs. N.R.C. See me Rm RHC.3/MJ.5.7.38. BENTLEY CLUTCH. With reference to Rm/NRC.29.6.38., we have investigated the position of Chassis fitted with black painted clutch… | ||
| scan0363 | Discovery and resolution of an incorrect spring thrust issue on the Bentley clutch. | ||
| View original record | fil 212 To BY. Rm/NRC.3/B.11.7.38. RE: BENTLEY CLUTCH. Until recently we had no means of testing the actual total spring thrust of an assembled Borg & Beck clutch, as received from the Makers, but we… | ||
| scan0364 | Drilling angle of oil drain holes for 25/30 & Bentley flywheels. | ||
| View original record | To RHC. from Rm/NRC. TTO 212 also 512 Rm/NRC.4/MH.29.8.38. 25/30 & BENTLEY FLYWHEELS. A. The oil drain holes are drilled at an angle as at A. They would be just as effective if drilled parallel to the… | ||
| scan0365 | Note regarding clutch plates fitted with Thermoid for Phantom III, 125/30 and Bentley models. | ||
| View original record | 212. Hd. Rm/NRC.1/JH. 21-10.38 Re Clutch Plates fitted with Thermoid. P.III 125/30 + Bentley file 1110. | ||
| scan0366 | Rig setup and dimensions for setting clutch fingers on Wraith and Bentley cars. | ||
| View original record | 212 and 612 To By. c. to Da. c. to Da/Hdy. c. to By/CRI.6 Rm/NRC.15/JH.24.1.39. CLUTCH FINGER SETTING - WRAITH & Bentley. We set the fingers of both 11" and 10" Borg & Beck clutches on a rig which… | ||
| scan0367 | Requesting parts for a relay clutch mechanism and B.II engine oil pump for testing. | ||
| View original record | 2/2. To HPS. from Rm/Gry. c. HPS/RH. Rm/Gry.6/MH.11.5.39. RELAY CLUTCH MECHANISM. You will have received details of PD.431 for test on 6.B.IV. In addition to these parts we also require two sets of… | ||