Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 179b\1\        Box Selection

IdentifierEntry
img001 Increasing the wheelbase to 10 ft 6 ins due to the front positioning of the supercharger.
View original record E. ) FROM R. HS. ) ORIGINAL RECEIVED C. to SC. WOR. DA. HTY. R1/M10.8.32. re. BENSPORT. x455 Owing to the supercharger now being in front of the engine, and the difficulties with the pedals, we have…

img002 The design, cost, and performance of Peregrine shock dampers.
View original record HS. ) FROM R. HDY. ) BY ) C. to GG. WOR. B. R1/W10.8.32 X235. X4027. PEREGRINE, ETC, SHOCK DAMPERS. To get these reasonable in cost we must make as many as possible, preferably to the same size and…

img003 Issues with the Peregrine starter motor stalling and proposing alterations to the winding and gear ratio.
View original record ORIGINAL E.S. ) FROM R. C. to SG. WOL. RV. EA. R2/M10.8.32. X6134 PEREGRINE STARTER MOTOR. This (I understand) is a smaller specimen of our sequence type simplified from P. 2., and like J. 3., but at…

img004 Request for a wheel, tyre, and dummy hub for the Bensport - Bentley 'B' Model bodywork.
View original record HS. FROM DA/EV. DA/EV1/M11.8.32 [strikethrough] C to B.T. [/strikethrough] BENSport - BENTLEY 'B' MODEL. We are going ahead again now with the two bodies for the Bensport, as they are well on the way,…

img005 Confirming an agreement on modifying steering column controls for both RR and Bentley cars.
View original record HS. ) FROM DA/EV. E. ) WOR.) re. CONTROLS ON STEERING COLUMN. This is to confirm an agreement made at the conference at WW. prior to the holiday, that the RR. cars will have the modified controls as…

img006 Progress report on the Bensport chassis, discussing challenges with the supercharger, fan drive, and hand brake lever.
View original record E. BY.) FROM R. HS. ORIGINAL. RL/M13.8.32. BENTSPORT PROGRESS. X4553. I am afraid we are making very slow progress with the Bensport chassis, partly due to the fact that at W.W. we have not a drawing…

img007 Issues with Peregrine controls, specifically the spring pressure and the change speed lever, with proposed solutions.
View original record RE- E.BY. ) FROM R. HS. ) R2/413.8.32. C- to SGY- WOP- DA- HPM- 1932 AUG PEREGRINE. x4027. The Peregrine controls worked extremely badly when I saw the car - practically all that has to be operated by…

img008 Modifications to the gear lever shaft for the 25HP model.
View original record A. FROM HDY. C. to EG. WOH. F. C. to BS. WH. [STAMP] RECEIVED 16 AUG 32 [STAMP] ORIGINAL GEAR CONTROL. HDY/1/WJ.8.32. X 5310 X 7310 X4027 We send herewith N. sch. 3498, which shows modifications to…

img009 Seeking clarification on the design origin of the Peregrine front axle control.
View original record DT. FROM HDY. ORIGINAL. HDY/2/MLS.5.38. C.C. to Mr. Hives. E. C. to Mr. HL. PEREGRINE FRONT AXLE CONTROL. X4027 We are presuming that this is being scaled down from J. 3., and that no designs are…

img010 Requesting a sample set of wheels and a dummy hub for a Bensport Bentley '3' model.
View original record LID ORIGINAL TO HS/Lid. FROM EV. BVI/I6.8.32. x45-3 COPY TO JF. WHEELS FOR BENSPORT. BENTLEY "3" We were under the impression that we had given to Derby sufficient information to enable them to order…

img011 Alterations to car body designs for Saloons and Coupes, including bonnet modifications.
View original record TO [REDACTED] FROM E.V. COPY TO [REDACTED], H.S. M RE BENTLEY. "A" NO. [REDACTED] X293 X4027 We send herewith N.Sch.3461, 3462 and 3465, shewing the designs of the Four Door Four Light and Six Light…

img012 Revised Benlyport layout, superseding a previous version and instructing on part ordering.
View original record P.1. FROM DA. C. to CC. WJT. WS. H. BENLYPORT LAYOUT. DAZ.18.8.32. Y4553 Herewith is H. sch. 3516. shewing the revised layout which supersedes H. sch. 3477. From this you will be able to order the…

img013 Modifications to the 'J. 3. Type' shock damper piston to reduce manufacturing costs.
View original record DY FROM HDY. HS/RM. C. to GG. WOR. B. C. to DA ORIGINAL HDY1/M19.8.32. SHOCK DAMPERS 'J. 3. TYPE. MODIFIED PISTON. x5520. We send N. sch. 357 herewith which shews modifications to the damper piston to…

img014 Design considerations for the Bensport chassis, including supercharger proportions and control layouts.
View original record HS. FROM R. ORIGINAL C - to SO. WOR. PN. BA. BENSPORT CHASSIS. X4553 When writing our memo. last week naturally we were not aware of any changes being made to the supercharger. I am very pleased with…

img015 Gear modifications and ratios for the Peregrine & Belsport rear axles.
View original record ORIGINAL P/t. FROM DA. C. to Ser. Nom. RS. DA1/W20.S.32. Y40? V85? PEREGRINE & BELSPORT REAR AXLE. We send herewith D. sch. 7514. shewing the 6.5" hypoid gear, ratio 9/46. for Peregrine, and 10/41 for…

img016 Troubleshooting history and ongoing design improvements for shock dampers.
View original record HS. - Er - ) FROM R. BY. ) ORIGINAL G. to EG. WOR. HDY. re. SHOCK DAMPERS. trouble. These should now be considerably less liable to give trouble. When first re-introduced it will be remembered that it…

img017 Sending an obsolete drawing, sch 3523, showing the layout of Bensport with the overhead camshaft engine.
View original record A. FROM EV. C. to S[REDACTED] HS. BENSPORT. We send herewith D. sch 3523. shewing the layout of Bensport with the overhead camshaft engine. We realise this is now obsolete, but send you the original…

img018 Modifications to the Peregrine & Bensport starter motor to improve performance.
View original record HS/WST. ) FROM R. By E. ) C. to SG. WOR ...INAL! PEREGRINE & BENSPORT STARTER MOTOR. R4/M20.8.32. X6134 This vigorous little engine is proving rather difficult to turn over the compressions for…

img019 Query about altering the travel of the reverse shaft to increase gear overlap.
View original record HS. FROM HDY. ORIGINAL. C.c. to B. DY. REVERSE GEAR - 20/25. HDY2/M22.8.32. X5310. With reference to the favourable report - HS/GRY2/KT12832. - on the reverse shaft to N. scheme 3492, we should like…

img020 Request for a critique on a new damper piston design to reduce manufacturing costs.
View original record A. FROM HDY. C. to MR. [REDACTED] HYL/422.8.36. x5510 SHOCK DAMPERS - J. 3. TYPE. COST OF CONSTRUCTION. We have just sent to Derby a design for a damper piston which appears to us to reduce the cost…

img021 Borg & Beck clutch experiment on a 25HP model, with reference to alternative design schemes.
View original record BY. ) FROM DA. HS. ) C. to SG. WOH EY DA1/H23.8.32. BORG & BECK CLUTCH EXPERIMENT ON 25HP. We hope this experiment is being pushed on, as information obtained from it would be of assistance in…

img022 Latest arrangement of the gearbox and clutch, referencing scheme N. sch. 3526.
View original record M. FROM DA. C. to Mr. H.E. DA/EVL/M.24.3.32. X4553. BENCHPORT. We send herewith N. sch. 3526, showing the latest arrangement of gearbox and clutch etc, as preliminarily set out. The gearbox and…

img023 Decision on a shorter propeller tube and a Lancia-style separate bearing design.
View original record MEM: FROM R. C. to Cd. WOH. PL. C. to MS. ST. E. TELEGRAPED X4027 LA., N.V., and I decided that we ought to have not less than 12" shorter propeller tube - i.e. 45" between centres, and, considering…

img024 Modifications to the front dumb iron and the position of the wing stay and lamp bracket for a new chassis layout.
View original record BY. FROM DA. ORIGINAL DAL/M27.8.32. C. to Mr. WDP. HS. P. BENSPORT FRONT HORNS. X4553 Herewith is M. sch. 3527. shewing the modifications to the front dumb iron produced by the recent chassis layout.…

img025 New scheme for a Bensport steering column support.
View original record BY. FROM DA. EXPERIMENTAL C. to SC. WDR. HS. ER. BENSPORT STEERING COLUMN SUPPORT. DA2/427.8.32. X4553 Herewith is N. sch. 3526. shewing the support for the steering column on the dashboard to agree…

img026 Layout of the chassis front end, detailing the starting handle, blower position, and axle modifications.
View original record BY. FROM DA. C. to WGR. H.S. BENSPORT. DA3/W27.8.32. 304 y4853 Herewith is N. sch. 3529. This shows a layout of the front end of the chassis giving the front end of the starting handle, (which is…

img027 Commenting on the design of a Donflex clutch disc, specifically regarding spring softening and slipping surface area.
View original record R. FROM DA. C. to ES. BY DONFLEX CLUTCH DISC. DA4/M27.8.32 X2200. Referring to EH/25332, and LeC. 3160., we should like to comment as follows: (1) The springs are liable to be softened at the ends. We…

img028 Comparing gearbox configurations for Peregrine and Bensport models.
View original record MCM. FROM R. R1/27.8.32. C. to CG. HS. E. BA. DA. x 4027 y 4553 My dear Mr. Wormald, re. PEREGRINE & BENSPORT. The former we are treating with a slightly flexible extension behind the gearbox, because…

img029 Letter sending a blueprint and specifications for a two-stroke sleeve valve compression ignition test unit.
View original record C. FROM R/EYR. ORIGINAL R/EYR1/M/31.3.32. 44433 C. to F. SG. WOH. C. to UD. E. BY. re. 2nd. COMPRESSION IGNITION TEST UNIT. As requested during your visit yesterday, we send herewith blueprint of…

img030 Improvements of a new type of circular condenser for battery ignition.
View original record WST ORIGINAL. HS/WST. FROM R. R1/M31.8.32. X6052 NEW TYPE OF CIRCULAR CONDENSER FOR R.R. BATTERY IGNITION. Regarding your HS/WST3/KT23832., I am very pleased that you are so hopeful of the…

img031 Technical memorandum discussing calculations for the theoretical whirling speed of a Peregrine propeller shaft.
View original record Z. FROM IA. Copy to HS. ORIGINAL DA1/M15.5.32. X 484. WHIRLING OF PROPELLER SHAFTS. With reference to our conversation over the telephone, we have not yet had an opportunity of discussing this point…

img032 Phenomenon of 'brake thumps' and proposing an experimental oil dashpot as a solution.
View original record HS. -BY-) FROM R. ORIGINAL C- to B&T-WOR-PA. R5M20.8.32. Save X 1559 BRAKE THUMPS. One very much likes to get at the exact reasons for any of these objectionable phenomena. There are good reasons to…

img033 Telegram confirmation regarding propeller vibration attributed to the overhang of the coupling on the flexible tailshaft of the gearbox.
View original record RECEIVED AUG 25 CONFIRMATION OF TELEGRAM. W.W. 23. 8. 32. HIVES. ROYCAR. DERBY. K484. BELIEVE PROPELLER VIBRATION ENTIRELY DUE TO OVERHANG OF COUPLING ON FLEXIBLE TAILSHAFT OF GEARBOX. REDUCE BOTH…

img034 Propeller shaft whirl, vibration, and proposed design modifications to address these issues.
View original record CONFIDENTIAL ORIGINAL MESSAGE HS. ) FROM R. H. ) S. to BG. WOR. DA. BY. PN. R1/W24.8.32. X 1 34 I am satisfied that as propeller shafts whirl about 30% below our calculated speeds, that there is no…

img035 Whirling speed of propeller shafts and potential reasons for calculation failures.
View original record D/L. FROM R. ORIGINAL. R2/424.8.32. C. to MESSRS. HS. SY. E. RM. X484 Regarding the whirling speed of propeller shafts, your conception of this phenomenon seems better than most of us, and there is…

img036 Telegram confirmation regarding permanent designs for a separate gearbox and propeller shaft testing.
View original record CONFIRMATION OF TELEGRAM. Copy to WCH. HS. EP. H. WW. 25. 8. 32. ORIGINAL. x4027. v424. ROYCAR. DERBY. WORMALD - HIVES - BAILEY - ELLIOTT - WE ARE MAKING PERMANENT DESIGNS FOR PEREGRINE/LIKE LANCIA…

img037 Push rod engine behaviour and central ignition plugs for the T.T. Race.
View original record E.B. ) FROM R. HS. ) C. to SQ. WDR. BY. ORIGINAL re. T. T. RACE. Regarding your Ell/HP24532., and the good behaviour of the push rod engines, it looks as though we ought to get through with the…

img038 Fuel consumption issues with the J.3. & Peregrine carburetter.
View original record B. ) FROM R. HS. ) C to SG. WOB BY ORIGINAL. R3/W31.S.32. x 5080. x 4027. J. 3. & PEREGRINE CARBURETTER. The question of the consumption of fuel is becoming rather serious with all our cars. We must…

img039 Outlining scheme 3530, detailing a supplementary transmission shaft to reduce the propeller shaft length for the Peregrine model.
View original record ORIGINAL FROM DA. C. to C. W. RS. E. PEREGRINE. DA2/M1.9.32. K4037 Herewith we send N. scheme 3530., showing the supplementary transmission shaft between the gearbox and the differential brake cross…

img040 Diagram for the Peregrine foot linkage and supplementary propeller shaft.
View original record H. FROM DA. ORIGINAL DA3/11.9.32. C. to So. Wor. HS. PEREGRINE FOOT LINKAGE WITH SUPPLEMENTARY PROPELLER SHAFT X4027 Herewith we send N. sch. 3571. - diagram of the brake linkage with the cross member…

img041 Modifications to the Peregrine frame's brake differential cross member.
View original record F/. FROM DA. ORIGINAL DA4/H1. 9. 32. C. to WDR. HS. & PEREGRINE FRAME. X4027. Herewith we send R. sch. 3532, shewing the brake differential cross member modified to suit the supplementary transmission…

img042 Engine design, fuel systems, and key mechanical improvements like the gearbox and crankshaft.
View original record 20. FROM R. ORIGINAL. R2/M3.9.32. 20 C. to WGR. HS. BY. re. THE CAR YOU HAD IN FRANCE AUGUST 1932. C. to FH. E. BA. J. I. HEAD, ETC. X5770 There has never been any reason why this head should have…

img043 Engine development strategy and the relative merits of different fuel delivery systems.
View original record (2) At the moment I think that HS. is in agreement with me that it would be better to move to J. 3. complete car, rather than take 2 steps to J. 1., and then J. 3. You will remember that I pressed…

img044 Listing vehicle sections and components related to the Bensport and Peregrine projects.
View original record P.T. FROM D.A. ORIGINAL DA1/W3.9.32. x455 C. to SG. WOR. RY. HS. E. re. BENSPORT. We believe that Derby have received from us instructions for the following sections: [STAMP: RECEIVED SEP 7 1932] (1)…

img045 List of outstanding sections and details awaiting a ruling for a vehicle project.
View original record (2) The following sections are outstanding: (19) Gearbox & change speed lever mechanism (in hand.) (20) Pedals and clutch operation (in hand.) (21) Dashboard & fittings (including floorboards - in…

img046 Errors in the clutch mechanism due to engine flexibility and outlining proposed modifications.
View original record FROM R. C. to [text crossed out] ORIGINAL R5/MS.9.32 X4027. X5300. PEREGRINE & J. S. CLUTCH. Thank you for your memo. re. the errors in the clutch mechanism. This is an old fault which we have run…

img047 Tolerance limits for ball bearings in the 25HP & Peregrine gearbox.
View original record ORIGINAL FROM HDY. C. to EQ, SGN, KC. [strikethrough] C. to E, B, HS. RHO. [strikethrough] HDY/M6.9.32. x5310. x4027. 25HP. & PEREGRINE GEARBOX. R. has remarked that instead of using the close limits…

img048 Modifications to the Peregrine gearbox, replacing 1.BA. studs with .250 bolts.
View original record E. FROM HDY. ORIGINAL HDY/2/46.9.32. C. to SG. WOR. B. C. to HS. th. PEREGRINE GEARBOX. X407 We send herewith N. scheme 3518., which shews modifications to the gearbox to enable .250 bolts to be used…

img049 Potential engine failure causes and solutions for Lord Wakefield's boat, Miss England III.
View original record SS. FROM R. ORIGINAL R1/W7.9.32. C. to WDR. " " DR. " " RS. " " ET. re. LORD WAKEFIELD'S BOAT, MISS ENGLAND III. X4578. Naturally a 'biff', fair or foul, might prevent the throttle opening. But…

img050 Delivery of bodies, wheels, hubs, and tools for Peregrine and Bensport models.
View original record HS/LID. FROM DA/EV. ORIGINAL PEREGRINE AND BENSPORT. We thank you for HS/LID3/KT3932. DELIVERY OF BODIES. We shall give you definite instructions as to the exact date that your lorry shall arrive for…

img051 The toolset for Bensport vehicles and the delivery schedule for car bodies.
View original record (2) TOOLS FOR BENSPORT. We agree that these will be the same as we are fitting up for Peregrine, minus the wheel spanner. We do not wish you to think that we are unduly harrassing you, but it must be…

img052 Observations and proposed solutions regarding heat in the driving compartment, focusing on heat radiated from the dashboard and hot air leaks.
View original record HS. FROM DA/EV. C-to SS. WOR. E. C - to DV. PN. CX. EP. LES ORIGINAL see me DA/EV2/M7.9.32. HS r819. HEAT IN DRIVING COMPARTMENT. With reference to the report on the above - HS/LES5/KT2932 - we would…

img053 Issues with cabin heat from gas leaks and scuttle ventilation, proposing solutions and requesting data from Derby.
View original record (2) We think it is unfortunate that while thermometer readings were taken with the dashboard lagged and unlagged, there were none taken for the improvements made due to the stopping up of the gas…

img054 List of recommendations for vehicle body and component fittings, including dash covering, blueprints, pedal stems, and ventilation.
View original record (3) 504 (2) We should cover the back of our dash with carpet as standard, or other heat resisting material. (3) That complete and adequate blueprints should be supplied to coachbuilders shewing how to…

img055 With a sketch suggesting the use of diagonal rods to secure an engine to the frame.
View original record FROM R. C. to SGT. " WDP. " HS. " EWS. " ADH. J. 3. ASD PEREGRINE L. R2/M7.9.32. X 5770 X40(?) We must hold the engine firmly endwise. I suggest diagonal rods from the junction of the front cross…

img056 Preference for a short engine and bonnet, the need for more than six cylinders, and commissioning a design for a 12-cylinder Vee engine.
View original record ✓. FROM R. ORIGINAL SECRET R1/MB.8.32. C. to WGR. E. HS. Par HLV. x3993 24 re. 40/50. (1) I take it that Hales and Percy are convinced that we need more cylinders than six. W.R. have thought so for…

img057 The supply of various lamps and accessories for Peregrine bodies to the coachbuilder Messrs Park Ward.
View original record HH. ) FROM DA/EV. HS. ) ORIGINAL EV1/A10.9.32. K4027. PEREGRINE BODIES. Will you please see that the following accessories are supplied to Messrs Park Ward for delivery with the Peregrine bodies: 5…

img058 Modifications to the Phantom III clutch operation and pedal assembly.
View original record M. FROM LA. C. to L. W.L. MS. L. ORIGINAL: LAL/210.9.32 X4027 PHANTOM III CLUTCH OPERATION. Herewith we send M. Sch. 3517. shewing the arrangement of the clutch pedal and linkage to the clutch…

img059 Design and casting of a Bensport dashboard fixing to the frame.
View original record ORIGINAL. FROM DA. C. to Mr. H. R. DA2/10.9.32. X4557 BENSPORT DASHBOARD. Herewith we send S./Echs. 3534/5., showing the dashboard casting fixing to the frame etc. It will be seen that the general…

img060 The Bensport accelerator pedal design, comparing it to a similar one made for Peregrine.
View original record BY. FROM DA. ORIGINAL DA/M10.9.32. C. to PR. SS. BENSPORT ACCELERATOR PEDAL. X-553 Herewith is N. sch. 3536, shewing the accelerator pedal following the lines of that recently done for Peregrine, but…

img061 Chronic noise of the 2nd gear and evaluating the implementation of synchromesh or helical gears as a solution.
View original record HS. FROM R. ORIGINAL R2/M.259.32. Sent off 13.9.32. x 7310 x 14310 C to SC WOR PY Par E HDY. GEARBOX - SYNCHROMESH & HELICAL SECOND. While at Le Canadel we were struck with the noise of the 2nd. gear,…

img062 Unexpected troubles with petrol pumps, potential causes, and a proposed research plan.
View original record SG. } FROM R. HS. } B. } C. to WOR BY DA PETROL PUMPS. R1/M12.9.32. x677. x5460. x7460. x4027. Since petrol pumps have given unexpected troubles, some of which have little logical explanation, and…

img063 The procurement of Lucas lamps and other accessories for two Bensport car bodies.
View original record RECEIVED HS. FROM DA/EV. Copy to SC ORIGINAL DA/EVL/H13.9.32. BENSPORT ACCESSORIES. X4553 In order to complete the two bodies for Bensport which are almost finished, we need some accessories, and…

img064 Wheel and tyre specifications and their impact on body panelling for the Peregrine car.
View original record PT. FROM LA/EV. LTD PEREGRINE & BENSPORT. WHEELS. Copy to - HS IA/EV2/A/13.9.32. X4027. X4555. We wish to point out that on these cars we are reckoning on using the 18" rim and 5.5" section tyre. On…

img065 Potential brake system modifications to eliminate brake thumps and the implications for servo performance.
View original record HS.) FROM R. DA.) E.) Cr to EG. WOR. DY. ORIGINAL LES R6/M14.9.32. x 7360 v 66360 BRAKE THUMPS. It has occurred to many of us that to couple the brakes up altogether instead of letting the foot…

img066 Expressing reservations about the S.U. carburetter, detailing modifications for the Bensport engine and highlighting potential safety concerns.
View original record HS.) FROM R. C.c. to SG. WOR. BY ORIGINAL R1/14.9.32. X1487 Y4= S.U. CARBURETTER. It will be remembered that I am not greatly impressed with the SU. carburetter, but I pass the modifications which we…

img067 Engine specifications for the proposed new 40/50 model, including cylinder count and bore size.
View original record FROM R. S E C R E T. R2/414.9.32. C. to WCH. HS. EB. DH. X 3993. re. PROPOSED NEW 40/50. In discussing this matter with HS. I pointed out that we cannot consider for a moment an engine for the above…

img068 The J.3/J.2 & Peregrine front engine mounting, suggesting the use of thicker steel or drop forgings to reduce flexibility.
View original record HS. ) FROM R. E ) BX ) C. TO SS. WOR. R3/M14.9.32. X5005. X4027. J. 3. OR J. 2. & PEREGRINE FRONT ENGINE MOUNTING. This front engine mounting is remarkably neat and light, and I have come to the…

img069 New design for the Peregrine clutch operation and the consideration of a provisional patent.
View original record HS. [REDACTED] FROM R. BY. [REDACTED] R4/M14.9.32 Copy to Mr. WOR. Copy to Mr. CLAREMONT PEREGRINE CLUTCH OPERATION. X4027 With reference to the clutch operation this we believe we have solved fairly…

img070 Unexpectedly high propeller shaft thrust and proposing design modifications or alternative joint systems to mitigate it.
View original record HS. BY E.) FROM R. BY DA.) C to CCT. WOH. ORIGINAL R5/M14.9.32. Ku.84. PROPELLER SHAFT THRUST. We were always alive to the fact that there was a propeller shaft thrust, but never assumed it to be…

img071 Design, materials, and performance of brake servos, considering temperature effects and alternative braking systems.
View original record HS. ) FROM R. DA. BY. ) C- to SC. WOR. PN. ER. SERVOS. I pointed out to HS., E., and RM., that we must not be too ambitious about getting the servo consistent and unchangeable with temperature at the…

img072 Confirming design changes to the Bensport front springs and engine position for improved clearance.
View original record FROM IA/EV. C. to H.S. H.Y. IA/EVL/215.9.32 X45595 BENSPORT FRONT SPRINGS. This is to confirm our conversation of yesterday when it was agreed to work in future to a bump of 1.750" from full load to…

img073 Modification to the Peregrine engine clutch operation scheme.
View original record M. FROM DA. HS ORIGINAL DA1/M16.9.32. C. to MR. HS. x4024. PEREGRINE - CLUTCH OPERATION. We despatched to you last night N. sch. 3541., showing a modification to N. sch. 3537., and some additional…

img074 Confirmation of a phone message regarding the redesign and simplification of the J.3 & Peregrine clutch.
View original record EA. FROM R. CONFIRMATION OF 'PHONE MESSAGE. C. to MR. BS. re. J. 3. & PEREGRINE. CLUTCH. X5300 X4024 WE ARE SENDING DESIGNS OF MUCH BETTER AND SIMPLER CLUTCH, BUT IT WILL REQUIRE EXTENSIVE ALTERATIONS…

img075 Chassis lubrication options for the Bensport model, recommending a centralized system.
View original record TO [REDACTED] FROM DA/EV. COPY TO [REDACTED] HS. ORIGINAL EV2/17.9.32. X4553 CHASSIS LUBRICATION. BENSPORT. So far the designs for Bensport, in as much as many of them are the same as for Peregrine,…

img076 Print of the crankshaft for the Kestrel J. 111 engine, noting the inclusion of balance weights.
View original record ORIGINAL FROM R. R1/W19.9.32. C. to Mr. HS. EX. [Crossed out] KESTREL J. 111. ENGINE. X3865. Referring to RG/RBR5/TM16932., sending a print of DES. 1759., shewing crankshaft for the Kestrel J. 111.,…

img077 Required modifications for the Bentsport front engine suspension.
View original record FROM R. C. to [REDACTED] HS. [REDACTED] ORIGINAL B2/W19.9.32 X4553 BENSPORT FRONT ENGINE SUSPENSION. In many ways this does not seem satisfactory, and I think will require modification. The first…

img078 Pending decision on pressed steel brake shoes.
View original record RM. FROM DA. ORIGINAL DA2/420.9.32. x+612. PRESSED STEEL BRAKE SHOES. With reference to HS/RM.2/KT17932., we have raised the question of the steel brake shoes with R., and though he does not seem…

img079 Bensport clutch operation and pedal arrangement for the Peregrine engine.
View original record P. FROM IA. ORIGINAL DA1/M21.9.32. C. to So-Wks. HS. E. BENSPORT CLUTCH OPERATION. X4553 Herewith we send N. sch. 3545., shewing the arrangement of the clutch pedal, pedal suspension, and the…

img080 The Bensport rear engine supporting crossmember, front brake/differential, and clutch pedal arrangement.
View original record F.L. FROM DA. C. to Mr. WOT. HS. ORIGINAL DA2/W21.9.32. x4553. BENSPORT - REAR ENGINE SUPPORTING CROSSMEMBER AND FRONT BRAKE/DIFFERENTIAL. Herewith we send N. scheme 3546., showing the arrangement of…

img081 Seven improvements for the Peregrine Clutch based on test results.
View original record EX. FROM DA. C. to HS. PEREGRINE CLUTCH. x403 Herewith we send N. sch. 3513, showing the clutch modified to give the following improvements, all of which have arisen as a result of tests: (1) P. 2.…

img082 Responding to criticisms of the J. 3. Luggage Grid and detailing proposed modifications.
View original record FROM DA/EV. LID. ORIGINAL DA/EV/422.9.32. C. to RR. HOS. HS. er (struck through) J. 3. LUGGAGE GRID. X5400. In reply to EH/HP24632. outlinings the criticisms of the J. 3. concealed luggage grid when…

img083 Controls on the steering column for the Bensport model, including carburetter controls and steering wheel options.
View original record FROM DA/EV. C. to SG-ROW. ES. BENSPORT - CONTROLS ON STEERING COLUMN. DA/EV2/M22.9.32. x4553. We send herewith N. sch. 3544 shewing the controls for Bensport steering column as settled at the WW.…

img084 Rubber coupling for the Peregrine clutch and suggestions for spigot bearing lubrication.
View original record FROM DA. C. to SO. WOR. HS. ORIGINAL DA1/W24.9.32 X4027 PEREGRINE CLUTCH. We send herewith N. sch. 3546., shewing the arrangement of a rubber coupling in the above clutch. This is intended as an…

img085 Modifications and new gear ratios for the Bensport gearbox of separate construction.
View original record ORIGINAL Ex. FROM HDY. C. to L. W.R. F. D. BS. HDY/L/M24.9.32. X4553 BENSPORT GEARBOX - SEPARATE CONSTRUCTION. We send herewith a print of N. scheme 3519., which shews the gears as modified to suit…

img086 Confirmation of a telephone message regarding issues and improvements for the Peregrine & Bensport engine head joint.
View original record HS. } FROM R. B. } C. to SO. WOR. BY. CONFIRMATION OF TELEPHONE MESSAGE. PEREGRINE & BENSPORT. ENGINE HEAD JOINT. X4027 X4553' (1) The first thing that we notice is that there are signs of…

img087 Of numbered points discussing potential modifications to engine components like exhaust valves, studs and gaskets.
View original record (2) (9) The exhaust valves might be made to open late, and suddenly, and close more [crossed out: slowly] quickly, making less noise, when noise and shock is no use to us. (10) Is it assumed…

img088 Modifications and suggestions for the P. 2. clutch on the 19-EX model.
View original record ORIGINAL P/L. FROM DA. DAL/WSD.30.9.32 C. to SC. WOR. HS. R- P. 2. CLUTCH. x7800 With reference to the trouble experienced with the P. 2. clutch on 19-EX., we send herewith W. sch. 3551. shewing…

img089 The Bensport side steering tube, noting an expected additional 2° angle on the R.H. lock.
View original record P/ FROM DA. C. to SG. WCR. HS. E. BENSPORT SIDE STEERING TUBE. DA2/M30.9.32. X4563 Herewith we send N. sch. 3552. shewing the arrangement of the side steering tube on the above car. It will be noticed…

img090 Engine reliability testing, focusing on the differences in stress between high and low-speed running.
View original record ---RO.) FROM R. HS. ) C to SG. WOH. B. ORIGINAL R1/21.10.32 ENGINE TESTING. --- From recent experience and observations of power characteristics of various engines, one feels that the reliability of…

img091 Sending a design for the Continental Phantom touring saloon with a revised tail and increased luggage accommodation.
View original record FROM DA/EV. C. to Sgr WOH. H.S. ORIGINAL [Handwritten]: Save DA/EVL/41.10.32. [Handwritten]: X7120 CONTINENTAL PHANTOM TOURING SALOON. Herewith we send N. Sch. 3550. shewing a design for the…

img092 Design and alignment of the Bensport gearbox, comparing it to other synchro mesh boxes.
View original record A. FROM HY. ORIGINAL EHY/AL.18.3.32. C. to SC., WH., Br-Exs HS. BENSPORT GEARBOX. X 40576 We send herewith S. scns. 7519/20/21/22., which show most of the Bensport gearbox. H. sch. 7519. has not been…

img093 Issues with single-plate clutches and the development of corrected and multi-plate designs.
View original record HS. FROM R. C.C. to SC. WOR. BY. E. (Strikethrough) CLUTCHES. We are all in agreement that it is necessary with single plate clutches to carry the asbestos on the driven plate. It will be remembered…

img094 Performance of a new single valve shock damper and potential redesigns for its automatic control pump.
View original record HS. FROM R. Cp. to SG. WOR. RG. BY. E. PN. SHOCK DAMPERS. I am pleased to hear from HS that the new single valve type shock damper is proving the best we have so far had, both for silence and…

img095 Advantages of direct-acting Bensport brakes over servo, hydraulic, and vacuum-assisted systems.
View original record HS. FROM R. ORIGINAL. C. to SC. WOR. Dar. E. BY. BENSPORT BRAKES. We are more than pleased that we have settled to make the Bensport brakes direct acting. We fear the servo might give less even…

img096 Gearbox design, specifically freewheel placement and the use of helical versus straight gears.
View original record HS. FROM R. ORIGINAL SECRET R5/Wl.10.32. x 7210. y 7210. C. to BG. WOR. BI. E. GEARBOXES. Regarding the silent 2nd., HS. and myself are not quite in agreement as to the better place to put the…

img097 Secret memo regarding the proposed 12-cylinder 'SPECTRE' Vee engine.
View original record FROM R. C. to SC. WOB. LS. BY. ORIGINAL SECRET R6/4 1.10.32. x 3993 12 CYL. VEE ENGINE. (SUGGESTED CODE WORD "SPECTRE".) We hope soon to be ready for our next car job at W.W., and shall be pleased if…

img098 The problems of standardising bonnet length for 'C', 'E', and 'F' type steering configurations.
View original record FROM DA/EV. ORIGINAL DA/EV1/A5.10.32. C. to. SS. WOR. CX. HB. X7260. P. 2. - BONNET. There is little doubt that the 6" longer bonnet which we have standardised is too long for 'C' steering, and causes…

img099 From 'R.' to 'HS.' regarding delays and technical considerations for the Bensport and Peregrine engines.
View original record HS. } FROM R. ORIGINAL R1/M4.10.32. C. TO SG. WOR. BY. DA. BENSPORT ENGINE. --- I have agreed to lengthening the engine as E. says it will not only help the cylinder block, but will help the head.…

img100 Slow progress on the Bensport engine supercharger project and potential suppliers.
View original record E. ) FROM R. HS. ) [Text struck through: C. to CO., WOB., EV.] ORIGINAL BENSPORT ENGINE - SUPERCHARGER. It will be remembered that nearly 12 months ago we set out with the engine fitted with…

img101 Technical discussion on Bensport brakes, considering increased drum size and automatic adjustment for high-speed cars.
View original record HS. ) FROM R. ORIGINAL C. to SG. WOR. BT. BENSPORT BRAKES. X483 Very rightly I think HS. is of the opinion that these, as arranged on Peregrine, would not give satisfaction on such a high speed car.…

img102 Lockheed braking system's intensifier and the potential for adding a forward-only servo.
View original record (2) DA. has pointed out that the Lockheed system has an intensifier which in effect alters the leverage after the slack has been taken up, that is to say, hydraulically it has two ratios of leverage.…

img103 Overheating exhaust valve guides and suggesting salt cooling as a remedy.
View original record ORIGINAL B. ) FROM R. HS. ) R4/M4.10.32. C to SQ. WOR. DV. P. 2. EXHAUST VALVES. X7260 On looking at the drawing of the arrangement we have tested, with a fresh eye, one feels as though we ought not…

img104 Testing of three modified clutches, resolving faults like pedal vibration, and proposing a patent for the improved mechanism.
View original record HS. FROM R. C to SG. WOB. BY. E. DA. [text has been struck through] CLUTCHES. R5/M4.10.32. 45 Handwritten notes: X778. X 300 X 5300. We understand that you have now the three modified clutches to test…

img105 Semi-hydraulic brake system for motorcars for patent purposes.
View original record X. FROM R. R1/W5.10.32. N73 C Y152-7 C. to [redacted] HS. TR. SEMI-HYDRAULIC BRAKE SYSTEM FOR MOTORCARS ETC. N.Sch.3560. We attach herewith sketches of the above system for patent purposes. This…

img106 Modifications for 'C', 'D', 'E', and 'F' type chassis prints.
View original record FROM BA/EV. ORIGINAL TA/LV1/26.10.32. C. to Mr. HS. X1775 P. 2. CHASSIS PRINTS. We have carefully gone over the whole print problem with a view to simplification as the result of the abolition of the…

img107 Obsolescence of certain body drawing prints and requesting new ones.
View original record (2) For all steerings, the same scuttle isolation print as now will do, by merely replacing the subframe by a wooden bottom side. Due to rapidly improving and varying designs of body for the…

img108 Car body life, the removal of the body subframe, and its impact on chassis rigidity.
View original record HS. FROM DA/EV. SECRET ORIGINAL LID x4033 x5830 BODY LIFE. Hs With respect to the failure to stand up reported by 'phone in connection with the body of 1-Per.2., we would like this to be reported in…

img109 Outlining the causes for a delay in delivering a car body and a revised delivery date.
View original record HS. FROM DA/EV. LID Seating DA/EV2/W7.10.32. re. BODY - 3-PER.2. 84027. We regret that the date of Oct. 5. has not been kept for the delivery of this body. The causes are as follows: (1) The increase…

img110 Design changes and specifications for the Bentcroft radiator.
View original record FROM DA. C. to MR. HS. BENTCROFT RADIATOR. DA3/AS.10.10.32. X4553. Herewith we send N. sch. 3561, showing the bottom of this radiator, including the suspension in the frame. It will be noticed that…

img111 Drawing for a radiator matrix and a request to test an alternative Harrison Matrix design.
View original record TO [REDACTED] LID FROM DA/EV. CO.PY TO [REDACTED] N. HS. RVI/12.10.32. RADIATOR. BENSPORT. X4552? We send herewith a drawing N.Sch.3565. showing the shape and dimensions of the radiator matrix as…

img112 Design changes to the sloping footboard for the Bensport model.
View original record TO FROM DA/RV. ORIGINAL DA/RV/12.10.32. COPY TO HS. FOOTBOARDS. BENSPORT. We send herewith R.Sch.3563. showing the sloping footboard for the Bensport. It will be noticed that the angle of the board to…

img113 Communication breakdown and responsibilities concerning coachwork by Park Ward & Co.
View original record HS/LID. FROM DA/EV. ORIGINAL. DA/EV1/M12.10.32. X293. Messrs Park Ward & Co. told me over the telephone yesterday that HS/LID. has collected the front wings of 3-Per.2., and given them instructions to…

img114 Modifications to the 25HP clutch to align with improvements for the Peregrine and P.2 models.
View original record ORIGINAL DH. FROM DA. DA1/W17.10.32. C. to SG. WOR. HS. GRY 5 See me HS X 25HP. CLUTCH. We send herewith N. sch. 3564. shewing the suggested modification to the 25HP. clutch to bring it into line with…

img115 Cause of rattles in Peregrine bodies, attributing it to hydraulic shock dampers and debating chassis rigidity vs. body construction.
View original record HS. FROM DA/EV. C to SC. WCR. HG. B. EY. PEREGRINE BODIES. DA/EV1/M13.10.32. x40-. x7530. x5820. We note from your memo. that the first Peregrine body, a 4 light, Park Ward Saloon, has developed very…

img116 Car body strength, weight, and construction, comparing them to American equivalents and debating future modifications.
View original record (2) It would appear that our only hope lies in being careful not to supply dampers which can be put up to loads higher than those which we think can be reasonably used, and to plate up our bodies…

img117 Alterations and approvals for a chassis dynamo vibrator regulator and its components.
View original record FROM R. HS. BT. C.C. to SG. WOR. DA. ORIGINAL CHASSIS DYNAMO VIBRATOR REGULATOR R1/A17.10.32 47 Y6092 Referring to E6/HP111032, D. schs. 583. and 585., are approved. The alteration to the switch seems…

img118 Merits and procurement options for different types of engine blowers.
View original record ES.) FROM R. BY ) C. to SGR. WGR. HS. BA. ORIGINAL BENSPORT BLOWER. Firstly, the question of the Bensport blower seems to be very serious. Firstly, the Powerplus now seems a waste of time. At one time…

img119 Modifications and specifications for the Bensport radiator and shutters.
View original record DY. FROM PA/EV. C. to EG. WOR. HS. H ORIGINAL EV1/W21.10.32. BENSPORT RADIATOR AND SHUTTERS. We sent you last night N. schs. 3562. & 3566. & 3563., which, with N. schs. 3561. & 3565. complete the…

img120 Modification of a Bensport bonnet fitting to be located at the dash.
View original record ORIGINAL. PT. FROM DA/EV. C. to-Sir Wm. HS. M LA/EV2/421.19.32. X4553. BENSPORT BONNET. as the radiator demands that the location bonnet be at the dash, we have modified the usual fitting to provide…

img121 Properties and potential uses of zinc die casting metal for car parts.
View original record ORIGINAL R1/21.10.32. Sent off 25. 10. 32. Y3701 ) FROM R. HS. ) LL. ) PL. ) RDY. ) TO EC. WDE re. ZINC DIE CASTINGS. I notice there is considerable reference now to the die casting metal of zinc with…

img122 Design work and patents for a semi-expanding carburetter and a shock damper.
View original record FROM R. TO MR. H.R. ORIGINAL DESIGN WORK, & PATENTS. R2/W21.10.32. Sent off 26.10.32. x39778 50 OCT 22 1932 I have been slowing up on design work for a short time in the hope of getting better in…

img123 Novel brake system design for the Bensport model, considering hydraulic transmission and patentability.
View original record (2) strings, wires, screws, and handles, that require a good deal of attention from the driver, as well as being of very doubtful permanency. (I notice in relation to this item that apparently a…

img124 Novel clutch actuation system and proposed future work on an epicyclic gearbox for the 'Spectre' project.
View original record (2) (4) CLUTCH ACTUATION. The 4th. item which is novel is the actuation of the main clutch in such a way as to be independent of any movement of the engine. At the same time the reaction of the…

img125 Issues with Kelloch brakes and proposing new schemes for hydraulically operated brakes to prevent fluid leaks.
View original record HS. FROM R. ORIGINAL R2/M24.10.32. 41559. C to SG. WOR. E. BY. DA. re. HYDRAULICALLY OPERATED BRAKES. DA. has hunted this matter up very thoroughly, and finds that the Kelloch brakes have all manner…

img126 Various engine options for a chassis, comparing the J.1, Peregrine, and a supercharged variant.
View original record FROM E. HS. TO SG. WOM. DV. ORIGINAL BENSPORT ENGINE. X & SC's I quite agree (and nearly added to my last memo. on this subject) that failing a blower we must change the idea of the engine. I think…

img127 Technical memorandum discussing the design of a blower, gear types, and drive mechanisms.
View original record (2) type has been neglected by us, and suffers from the disadvantage of being difficult to obtain. We still think however that if we sent to David Brown's with our requirements they might be able to…

img128 'Spectre' engine's 3.250' bore and making its parts interchangeable with the Bensport (J.1.) engine.
View original record HS. ) FROM R. E. ) G. to SG. WOR. DI. 'SPECTRE' ENGINE. STAMP: SEC[...] ORIGINAL AL24.10.32. Handwritten: V z a a I was very pleased to see that the 'Spectre' engine was not to be controlled by tax. I…

img129 Alternate proposals for a torsionally flexible coupling, comparing rubber and fabric types.
View original record From LA. To H.S. F. 2. TORSIONALLY FLEXIBLE COUPLING. Herewith we send S. schs. 3572/3., showing alternate proposals for the above. These have been in a partly finished state for some time, and we now…

img130 Different scheme for hydraulically operated brakes, comparing it to a Lockheed system.
View original record To ) FROM R. HS. ) PN. ) C. to SG. BOK. PN. Ec HDY. ORIGINAL HYDRAULICALLY OPERATED BRAKES ETC X1559. Since writing my last memo., and learning that some of our ideas have been anticipated more or…

img131 Technical memorandum regarding the Bensport change gear tower and lever.
View original record ORIGINAL W. FROM HDY. C. to SGR. WOR. HE. -by- Br. X 493S BENSPORT - CHANGE GEAR TOWER AND LEVER. We send herewith sch. 3956. which shews the above. The leverage of actuation of the syncro mesh cones…

img132 Modifications to a brake system for 14-inch diameter brake drums.
View original record M. FROM DA. C. to SHT-WGR. HS. T. ORIGINAL. LAL/28.10.72. X & S'S. BENSPORT - 14" DIA. BRAKE DRUMS. On looking into this matter in connection with other parts of the brake system we came to the…

img133 Investigation of a higher ratio gear for the Peregrine casing rear axle.
View original record M. FROM D.A. C. to SC. HSR. HS. H Rm DA1/429.10.32. X4553. E. 3. REAR AXLE. It will be necessary to have a gear still higher than the 4.1 to 1 we have already given you, and we have investigated the…

img134 Modifications to the 14' front brake drums and associated components.
View original record ORIGINAL P. FROM IA. C. to ---. HS. IA2/29.10.32. X4 555 B. 3. FRONT BRAKES. Investigating the 14" brake drums it appears that we can gain some advantages in the brake operating gear, and we have made…

img135 Proposal to strengthen the gearbox's 3rd motion shaft following a failure, detailing modifications.
View original record P/ FROM HDY C. to SG. WGE. HS. E-B HDY1/W2.11.32. 5573 V 7310. P. 2. GEARBOX. STRENGTHENED 3rd. MOTION SHAFT. With regard to the failure of the 3rd. motion shaft on 19-EX. after 23,000 miles, in…

img136 Development, testing, and commercial strategy for the Bensport engine.
View original record WOH. ) HS. ) FROM R. HY. ) E. ) ORIGINAL R1/W2.11.32. ss X4553. BENSPORT ENGINE. Firstly, I should like a conference to take place between WOH., HS., HY., and E., as to what is to be done to J. 1.…

img137 Development of governor-controlled shock dampers, patent considerations, and design interchangeability.
View original record HS. FROM R. C: to SG. WOR. BY. HDY. PN. Handwritten notes: XJ2S. XJ SHOCK DAMPERS. PN. writes to say that the Renault people may have done some early work on somewhat the same lines that we are…

img138 Design considerations for the Bensport hydraulic brake transmission system.
View original record HS. ) FROM R. PA. ) C.C. to SG. WDH. DH. BENSPORT - HYDRAULIC BRAKE TRANSMISSION. R3/W2.11.32. K+-S-S3. I have spent considerable thought on this, which has led to the following conclusions: Since we…

img139 Methods for returning oil from actuating cylinders using engine vacuum.
View original record (2) As regards returning the oil from the actuating cyls. to the master cyl. chamber should this be found desirable, I suggest that we can use the vacuum of the engine, but I should only use this…

img140 Confirming a conversation about the coachwork and testing of experimental cars.
View original record TO HS. FROM EV. Or 150. EV7/2.11.32. COPY TO [REDACTED] COACHWORK & EXPERIMENTAL CARS. This is to confirm our conversation on the subject of coachwork in connection with the Expl. Cars during my visit…

img141 Proposed revisions to the Bensport clutch and flywheel for the J.1. engine.
View original record PY) FROM DA. HS. ) ORIGINAL DA1/24.11.32. y 4 .-. 7 .-. BENSPORT CLUTCH AND FLYWHEEL. Because of the increased torque to be expected from the J. 1. engine compared with the original Peregrine type…

img142 Revised layout and modifications for installing a J.1 engine into a Bensport frame.
View original record FROM DA. C. to SU, WOR, HS, Er DA2/24.11.32. 324 x-MS BENSPORT WITH J. 1. ENGINE - REVISED LAYOUT. We have put the J. 1. engine into the Bensport frame, and send herewith N. sch. 3579., showing the…

img143 Proposing modifications to the Bensport cross steering levers and suggesting the removal of the leather cover.
View original record Y. FROM DA. C. to Mr. WGB. HS. BENSPORT - CROSS STEERING LEVERS, ETC. In looking into the 14" brake drums we have found it necessary to modify the length of the cross steering lever, and send herewith…

img144 Memo discussing progress on Peregrine bodies, outlining delivery dates, and requesting a sample wheel nut from Park Wards.
View original record H.s. from Es LID 5/11/32 all is going well with Peregrine bodies. & we are aiming to give you - at the dates requested - 4 Door Close Coupled - Nov. 19th/32 2 Door allweather - Nov. 26th/32 6 light…

img145 The design and specifications of the Bentsport gearbox, including its servo, governor, and speedometer.
View original record DY. ) FROM HDY. HS. ) Copy to FA. BENTSPORT GEARBOX. HDY/L/5.11.32 XU-53 We send herewith a print of N. sch. 3596 which shews the mounting of the rear end of the box, and the drives for the servo,…

img146 Need for hydraulic presses of 5 to 25 tons capacity for production economy.
View original record FROM R. to Mr. H.S. Evernden ORIGINAL WORKS For economy of production we are more and more dependent on tightly pressing on parts made with parallel fit. We think to do this the assembler should be…

img147 Technical analysis on the design and performance considerations for starter motors.
View original record HS/WST. FROM R. C. to SC. WOR. BY. E. ORIGINAL STARTER MOTORS. R2/W7.11.32. S-4 X6134. You give us some particulars of improvements made, and it would seem in reading the report that a cut and try,…

img148 Oil temperature issues and potential cooling solutions for the Peregrine engine.
View original record HS. FROM R. C. to SG. WOW. RV. RECD ORIGINAL. R3/W7.11.32. 60 PEREGRINE ENGINE OIL TEMPERATURE. X4027 Referring to HS/RM/KT51132, this is probably due to the high engine revs., and the greater work we…

img149 Listing drawings for three crossmembers, with a note that further information on brake linkage will follow.
View original record Pt. FROM DA. DA3/27.11.32. X4553. C. to CO. WOP. HS. BENSPORT FRANK SIDE MEMS. NO. Herwith we send: H. sch. 3567. - 4th. crossmember. " " 3580. - crossmember behind the clutch pit. " " 3581. -…

img150 Two alternative designs for the Bensport (J.1.) rear engine suspension.
View original record P/A. FROM D.A. ORIGINAL DA/W/7.11.32. C. to EG. WOR. HS. t x4553 BENSPORT (J.1.) REAR ENGINE SUSPENSION. Herewith we send S. sch. 3502, shewing the engine suspension at the rear of the clutch pit. It…

img151 Scheme 3583, concerning the arrangement of the starting handle and front crossmembers.
View original record P/L. FROM DA. C. to SG. WH. HS. L. BINGPORT (J.1.) STARTING HANDLE & 7th. & 8th. CROSSMEMBERS. Herewith we send R. sch. 3583. shewing the arrangement of the starting handle and the 2 front…

img152 Proprietary servo system design with two freewheels and its patentability.
View original record H.DY. ) FROM R. HY. ) HS. ) C. to BG. WOR. EG. R. re. SERVOS. Some years ago I schemed a system whereby the servo was turned in one direction whichever way the car moved?. This required some…

img153 Design and layout of the instrument board for a new car programme, including a sketch.
View original record ORIGINAL FROM DA/EV. C. to GG. WOR. HS. BT. B. 3. INSTRUMENTS & BOARD. We have reconsidered the problem of the instruments and board for B. 3., as viewed in the light of the new programme. (1) We take…

img154 Modifications to the Bensport gearbox to fix the excessive overhang of the 2nd speed slider.
View original record BY. FROM HDY. C. to BG. WOH. HS. E. DAY. ORIGINAL HDY2/M12.11.32. x4553 BENSPORT GEARBOX. OVERHANG OF 2nd. SPEED SLIDER. We thank you for BY4/C31132, in which you call attention to the excessive…

img155 The design of a Bensport hand brake lever, focusing on sealing the floorboards and preventing rattles.
View original record FROM BDY. C. to Mr. WOR. HS. L. Pa. BENSPORT HAND BRAKE LEVER. BDY5/12.11.32. x4553 We deal herewith H. sch. 758y, which shows the hand brake lever for this car. We have not shown any means of making…

img156 Final design and suspension of the B.3. radiator bottom tank.
View original record FROM DA/EV. BY. ) c. to- E. WOR. HS. HHG. B. 3. RADIATOR BOTTOM TANK AND SUSPENSION. x4553. We send herewith W. sch. 3588. shews a bottom tank and suspension for the B. 3. radiator which follows the…

img157 Design for an instrument board, including speedometer, tachometer and shock damper controls.
View original record TO [REDACTED] FROM EV. EVI/14.II.32. COPY TO SG. WCH. HS. SY. RE INSTRUMENTS AND BOARD. B.3. X6141 X4553 Many thanks for your E.3/HP.II.II.32. re the above. We are working hard to get a design for use…

img158 Confirming layout dimensions for B.3, including the dash, gearbox, and distribution box.
View original record TO WR. FROM EV. ORIGINAL BVI/15.11.32. COPY TO HS. X4027 RE LAYOUT OF B.3. We wish to confirm our telephone conversation of yesterday agreeing to the dimension of 3.650. from the back of the dash to…

img159 Design considerations for aero engines, including cylinder blocks, crankshafts, and balance weights.
View original record HS. FROM R. HS R2/M15.11.32. C- to US. WOH. No. 1. re. AERO ENGINES. x-2717. HS' Naturally I am delighted with memo. on the aero engine technical situation, and especially with reference to the two…

img160 Engine improvements, materials, reliability, and performance ratings for various aircraft.
View original record (2) In conclusion, I quite agree that an increased speed is the way to get more power out of the engine, both HP. for weight, and HP. for money, but we must carefully add up as to whether we are…

img161 The strengthening of the Bensport Gearbox 1st and 3rd motion shafts.
View original record FROM HDY. C. to GG. WOH. HS. R. EH. HDY1/M16.11.32. X4553. BENSPORT GEARBOX. STRENGTHENED 1st. & 3rd. MOTION SHAFTS. If the effect of the absence of radius on the fractured Phantom 3rd. motion shaft…

img162 Expressing a preference for the stroke proportions on a 5.5 engine, referencing the Kestrel engine.
View original record RG. FROM H. C. to BG. WOT. HS. AERO ENGINES. R1/M16.11.32. X2917 I don't like the idea of making the 5.5 engine (middle size) with 5.5" stroke, and should prefer its proportions to be the same as the…

img163 Design recommendations and considerations for torque reaction dampers.
View original record FROM R. B. ) HS. ) PK. ) C. to SG. WOR. EC. TORQUE REACTION DAMPERS. These seem of little use unless they can be really tightened up to give quite a substantial amount of friction - i.e. they are not…

img164 Bensport brake differentials and the use of an aluminum outer casing.
View original record M. FROM DA. ORIGINAL DA3/M16.11.32. C. to C.C., W.R., H.S. BENSPORT BRAKE DIFFERENTIALS. X-S-S-3. Herewith we send N. sch. 3599. showing the arrangement of the rear brake differentials and cross…

img165 Modifications to the Bensport clutch operation for the J.1 engine.
View original record FROM DA. C. to WOR. HS. DA4/N16.11.32. x4553 BENSPORT CLUTCH OPERATION. Herewith we send N. sch. 3587. shewing the modifications to the clutch operation called for by the use of the J. 1. engine.…

img166 Outlining further ideas for a hydraulic brake operation system, including patentable features, with reference to accompanying diagrams.
View original record P. FROM DA. C. to co. WOR. HS. DA5/W16.11.32. HYDRAULIC BRAKE OPERATION. X1557. Herewith we send N. schs. 3585/6. These are diagrams showing some further ideas in connection with the hydraulic system…

img167 Vacuum servo diagram for patent investigation.
View original record FROM DA. C. to Mr. H.S. ORIGINAL BRAKE OPERATION. DA6/M16.11.32. X/257 We send herewith N. sch. 3600., a diagram of a method of arranging a vacuum servo which R/ wishes you to investigate with a view…

img168 Outlining three design suggestions for a forward-only servo mechanism.
View original record FROM DA. C. to MON. HS. SERVOS. DA7/N16.11.32. 8730 S-370 We send herewith N. sch. 3602, showing 3 suggestions for arranging a servo so that it will only go in a forward direction whichever way the…

img169 Alternative method for a hydraulic brake actuating cylinder with automatic adjustment.
View original record H. FROM DA. C. to Sh. W.H. HS. L. DA3/H16.11.32. X/597 HYDRAULIC BRAKE OPERATION. Herewith we send M. sch. 360S. showing an alternative method of arranging the actuating cylinder with an automatic…

img170 Modifications to the Bensport Radiator to resolve clearance issues with the brake levers.
View original record FROM DA. C. to PT. MS. BENSPORT RADIATOR. DA9/M16.11.32. X4553. We have looked into the question of the brake levers striking the tank as indicated on R. Sch. 3538., and find that this drawing is very…

img171 Improvements to dampers, flywheel pulleys, and hubs.
View original record FROM R. C. to SG. Wom. HS. RV. RWC B2/M17.11.32. X407 V770 PERE: 2. AND J. 2. Referring to ES/HP151132., and LeCs. 3259. and 3276. (1) I am glad dry dampers are found an improvement. Certainly our old…

img172 Agreement on the 5.5' X 6' engine dimensions, establishing the Griffon engine with a 30% capacity increase over the Kestrel.
View original record HS. FROM R. c.c. to SG. WCR. RG. F. ORIGINAL. AERO ENGINES. (HS1/MJ151132.) R1/M17.11.32. Y2917 RG. and I have agreed to 5.5" X 6", being almost exactly 30% increase in capacity on the Kestrel, and…

img173 On the hydraulic operation of brakes, concerning a separate valve for replenishment and thermal relief.
View original record P/7. FROM EA. C. to Mr. Wor. HS. DAL/W17.11.32. X/559 HYDRAULIC OPERATION OF BRAKES. Herewith is R. Sch. 3605, showing the idea of using a separate valve for replenishment, and for relief in the case…

img174 Moving the suspension and brake levers to prevent them fouling the radiator.
View original record Vo B. FROM D.A. C. to HS. ORIGINAL RECEIVED NOV 21 1932 DA1/WIB.18.11.32. K4353 BENTLEY RADIATOR. With further reference to the question of the brake levers on the front axle fouling the radiator, we…

img175 The search for a new tradesman and equipment requirements for the Coachwork Department in Derby.
View original record LID See me HS EV3/19.11.32. TO HS. FROM EV. COPY TO SG. WCR. RE COACHWORK DEPT. IN DERBY. The writer has discussed this matter with SG. who agrees in general with the proposals set out in our previous…

img176 Request for a copy of a document concerning the valve arrangement for J.3. shock dampers.
View original record HS. FROM HDY. HDY/1/W19.11.32. Y5520 J. 3. SHOCK DAMPERS. VALVE ARRANGEMENT TO N. SCH. 3497. I shall be glad if you will kindly let me have a copy of HS/RM4/M.11.11.32., on the above subject. HDY. Hdr

img177 Layout and selection of instruments for the first Bensport instrument board.
View original record LIB ORIGINAL - EV1/19.11.32. See me X6141 TO HS. FROM EV. RE INSTRUMENT BOARD. B.S. I have been in London trying to settle up the instrument board for the first Bensport on the lines suggested in a…

img178 Arrangements for the collection and mounting of a Peregrine car body with coachbuilder Park Ward.
View original record HS. from EV. LID Spe me EV?/19.11.32. COPY TO [REDACTED] RE PEREGRINE BODIES. X We have wired you to collect the body for 4.Per.2. on Tuesday morning next, when it is sure to be ready. It has been…

img179 Brake and servo scaling issues and proposed solutions for Peregrine and Bensport models.
View original record HS. ) FROM R. C. to SO. WOR. By DV. BRAKES - (ESPECIALLY REFERRING TO PEREGRINE & BENSPORT.) x4037 x4353 x1559 We are agreed that these have got somewhat wrong due to being scaled down like the rest…

img180 Design decisions for a new servo mechanism, weighing options and detailing improvements over previous models.
View original record (2) This, and the reduced speed, may make a considerable difference, but at the same time we ought to increase the area of the surface all that we conveniently can. This I understand will be done. On…

img181 Aero engine design choices for a new model, including bore/stroke ratios, cylinder construction, and liners.
View original record RO.) FROM R. HS.) BY.) C__ to BG. WOR. E. H2/M19.11.32. (X2917) AERO ENGINES. My last memo. stated^in wor that the 5.5"x 6" engine was the correct intermediate position. This has come about through…

img182 Advantages of hard surface liners and comparing different reduction gear types.
View original record (2) ourselves of one great advantage out of two, that is, we cannot improve upon the expansion, but we can have the hard surface. I say we ought to do this, especially in our new models, the chief…

img183 Potential improvements and tests for a vibrator control system.
View original record HS/EST. ) FROM R. BH ) C. TO SC. WOR. FN. ORIGINAL WSP re. VIBRATOR CONTROL. R3/W19.11.32. X6092 It has occurred to me that this might require to be carried on the car a certain way up owing to the…

img184 Slight modification to the Bensport gearbox hand brake lever fulcrum pin.
View original record F. FROM HDY. C. to SG. WOH. E. HS. Am. HDY1/W22.11.72. X4553. BENSPORT GEARBOX - HAND BRAKE LEVER. W. sch. 3591. herewith shews slight modifications to the fulcrum pin for the hand brake lever. We…

img185 Design of the front floorboards and gearbox tower cover for a 'Benspoilt (B.3)' model.
View original record FROM DA/EV. DA/EV5/M22.11.32. C. to Sqr. MOR. HS. 374 K455-3 re. BENSPOILT (B. 3.) FRONT FLOOR. We send herewith W. sch. 3607. shewing the horizontal front floorboards, and the cover around the…

img186 Modifications to the floorboard and gearbox layout due to an engine change, referencing specific drawings.
View original record TO XK FROM SV. COPY TO HS. ORIGINAL SV/I/24.11.32 BMSPORT FRONT 250.. S.3. X4553 We send herewith N.Sch. 3608. showing the modified plate on the sloping floorboard of N.Sch.3563. necessitated by the…

img187 Dimensions and positioning of the gear and brake levers for a Bensport model with side levers.
View original record TO [REDACTED] FROM EV. EV3/24.11.32. X4503 COPY TO HS. [REDACTED] RE BENSPORT WITH SIDE LEVERS. With reference to your telephone conversation with us this afternoon we are able to send to you herewith…

img188 Responding to a request for chassis and body specifications, detailing various drawing numbers and corrections.
View original record TO HS/Lid. from EV. LID EV8/25.11.32. See me KY-53 copy to HF. E. HE BENSPORT. FIRST CAR. We thank you for your memo Hs/Lid5/MA.18.11.32. asking for a specification of the chassis as far as the body…

img189 Design changes and specifications for various car components.
View original record KV8/25.11.32.cont. 606 38.000ins. The shape of the bonnet at the back of the radiator and at the scuttle face, section "A" are correct, but the bonnet length has been increased due to the moving…

img190 Specification document detailing the components and assembly instructions for the first car of a model.
View original record ZV8/25.11.32. cont. FOURTH CROSSMEMBER. This is shown on N.Sch. 3567. FRONT APRON. We are counting on your building up a front apron on the lines of that for Pere.2. for this first car. HEADLAMPS,…

img191 Five observations and difficulties regarding a proposed modification to the Peregrine II steering column.
View original record TO HS. FROM EV. COPY TO Z. ORIGINAL X4077. PEREGRINE II. STEERING. In connection with your conversation on the telephone yesterday in which you asked that the steering column box be moved back…

img192 Modifications to the Bensport gearbox's 2nd motion shaft and layshaft.
View original record H. FROM HDY. C. to Ser. Wks. HS. Er. Da. BENSPORT GEARBOX. x 4-5-53 R. sch. 3595. herewith shews an increased radius on the 2nd. motion shaft at the rear of the centre bearing which brings this part…

img193 Design change for the Bentsport Gearbox, from brazed to hydraulically pressed levers on actuating shafts.
View original record [Strikethrough: Pt.] FROM HDY. C. to SG. Won. HS. E. Day HDY/2/W29.11.32. [Handwritten: S-4] [Handwritten: K4-553] BENTSPORT GEARBOX. N. sch. 3596. herewith shews actuating shafts with the levers…

img194 Design, features, and potential modifications of a Bensport shoe-type servo.
View original record P/1. FROM DA. DA1/M30.11.32. C. to SG. WDR. HS. BENSPORT SERVO. X-45531 Herewith we send N. sch. 3610. shewing the shoe type servo for the above chassis, giving the increased torque with reduced…

img195 Design, adjustments, and modifications for the Bensport gearbox.
View original record 1. FROM HDY. HDY1/430.11.32 C. to SG. WOK. HS. K-L. TA Y4553 BENSPORT GEARBOX. We sent N. sch. 3558. to Derby on 24.11.32., which shews the suspension of the gearbox, arms for servo brackets at agreed…

img196 The arrangement of the Bensport brake servo and balancer lever.
View original record FY. FROM DA. C. to S---Won. HS. BENSPORT SERVO. DA2/H/30.11.32. X4563 Herewith is N. sch. 7604, shewing the general arrangement of the brake servo and balancer lever. The servo shewn is that on N.…

img197 Restriction at the governor release valve and sending a schedule for the revised damper control unit.
View original record HS/RM. FROM HDY. HDY/2/M30.11.32. C. to BGr. WSR. W. HS. DA. DAMPER CONTROL. XL2Y With reference to the restriction at the governor release valve, we are sending herewith N. sch. 3593, which shews…

img198 Naming conventions and identity of different sized aero engines.
View original record M.G. FROM R. ORIGINAL C. to SG. WOR. R-BY. ES. X2917. AERO ENGINES - NAMES. I very definitely think that to change the name of a given sized engine that will go into the same space is losing its…

img199 Unsuitability of a shoe type servo and proposing a two-plate servo for the Peregrine gearbox.
View original record HS. FROM DA. C. to SG. WUH. BY. [REDACTED] PEREGRINE SERVO. [Handwritten]: x4027 The shoe type servo - N. sch. 3610. - which we have now sent to Derby is not suitable for Peregrine because we cannot,…

img200 Car suspension, front wheel articulation, and the practicality of the Dubonnet scheme.
View original record HS/HM. FROM R. C. to SG. WW. [REDACTED] M1/M30.11.32 CAR WORK - SUSPENSION. We have long agreed that the front wheels ought to be articulated so that gyrostatic forces do not occur. I cannot see any…

img201 Query to the Experimental Department regarding the lubrication of the servo drive in the P.2. gearbox.
View original record HS. FROM HDY. GR/ORIGINAL ADES/W/M30.11.32. C. to SG. WOR. E. DAY. BY. Will you reply x4553. x7500. LUBRICATION OF SERVO DRIVE. We have made provision on the Bensport gearbox for the retention of as…

img202 Suggestion for modifications to a Damper Release Valve following a trial.
View original record HS/RM. FROM HDY. ORIGINAL. HY2/M2.12.32. DAMPER RELEASE VALVE. X235 With reference to N. scn. 3593., we suggest that after trial with a plug drilled with three .125 release holes as shewn, extra holes…

img203 Diagram of the Bensport braking system and its comparison with other models.
View original record P. FROM DA. C. to EG. WOY. HS. Br BENSPORT BRAKING SYSTEM. DAL/23.12.32 84553 Herewith we send W. sch 3613. - diagram of the complete braking system, shewing the distribution of braking between front…

img204 The design, installation, and dismounting procedure for the Bensport gearbox suspension.
View original record BY. FROM IA. C. to [redacted] E.S. ORIGINAL. DA2/23.12.32. BENSPORT GEARBOX SUSPENSION. Herewith we send a sch. 3614. shewing the supports for the gearbox longitudinals on the 2 tubular cross members.…

img205 Discussion of four methods for an over-riding hand control for dampers.
View original record HS/RM. FROM HDY. C to SG, WOB, E, D, BY [Struck through] OVER-RIDING HAND CONTROL TO DAMPERS. We can see at least four ways in which it would be possible to arrange the hand control of the dampers.…

img206 Two graphs comparing damping force against speed for different suspension control methods.
View original record DAMPING LBS MINIMUM DAMPING AS SET ON DAMPER HAND CONTROL METHOD 2 GOVERNOR ONLY DAMPING LBS METHOD 3 M.P.H. SHADING SHOWS RANGE OF DAMPING

img207 Work in progress report on modifications to carburetter, steering, brakes, exhaust, and damper systems.
View original record R. FROM DA. ORIGINAL. DA1/W6.12.32. WORK IN PROGRESS - 6. 12. 32. (1) PEREGRINE CARBURETTER & STEERING. Derby want to lower the carburetter 1.5", which causes it to foul the steering box in the…

img208 Modifications to brake shoes, independent wheel suspension, and a sliding propeller shaft joint.
View original record (2) This can be done apparently without disadvantage, and very little modification to existing pieces. The pressure per sq. in. is reduced from 175 to 120 lbs. The rear brake pressure is 155 lbs: we…

img209 High oil temperature of the Peregrine engine and proposed cooling solutions.
View original record HS. FROM R. [REDACTED] PEREGRINE OIL TEMPERATURE. R2/s6.12.32. Sent off 9.12.32. In spite of the high oil temperature of the Peregrine engine I think this small car is doing extremely well to cover as…

img210 Performance of shock dampers, oil loss issues, and potential improvements.
View original record HS. FROM R. C.C. TO MR. WOR. BY. MR. L. EDY. X235 re. SHOCK DAMPERS. I am very pleased indeed to hear that the up-to-date dampers are working in such a way as to call for less need of control, either…

img211 The Peregrine engine's fuel consumption and potential improvements through valve and cam angle adjustments.
View original record HS. FROM R. ORIGINAL C to SC WHL. BY R. R5/W6.12.32. Sent off 9.12.32. PEREGRINE FUEL CONSUMPTION, AND POWER. We are a little shocked at Peregrine only running 13 MPG., but presume this would be very…

img212 Providing design feedback on a Peregrine drain cock and front engine suspension.
View original record ORIGINAL FROM R. C. to SG. WH. HS. A. PEREGRINE R7/M6.12.32. Sent off 9.12.32. I have been looking forward to seeing some drawings or comments on the criticisms I made about Peregrine drain cock, and…

img213 On the Bensport Braking System, discussing the principle of moving to hydraulic operation and improving the mechanical system.
View original record HS. FROM DA. C. to SG. WOR. BY. ORIGINAL. DA2/W7.12.32. BENSPORT BRAKING SYSTEM. X 4553 R. wishes it to be accepted as a principle that when we go in for hydraulic operation of the brakes we should…

img214 Trial run report and comparison of a Thrupp & Maberly bodied Alvis Speed Twenty saloon.
View original record ORIGINAL TO PLCM IV. COPY TO MR. H.S. EV2/7.12.32. X4483 X4627 THRUPP & MABERLY POUR TOUR SALOON. ALVIS SPEED TWENTY. ----- I was able to have a trial run on one of the above cars. It was not known…

img215 Road test report on a car model detailing driving impressions, pricing, sales figures, and a comparison with a future model.
View original record EV2/7.12.32. cont. From the near side front door, coming up between the door and the sill was such a draught that it made me shiver and water blew in. The steering is delightful, being very light,…

img216 Modifications to the Benpsort 3rd crossmember and frame side member.
View original record BY. FROM DA. ORIGINAL DAL/M7.12.32. 124/ C. to SG. DOH. HS.- BENSPORT 3rd. CROSSMEMBER. R/SCH. 3567. X4553 Replying to BY/OEH4/G281132, we agree that in some ways the frame side member shewn on the…

img217 Bensport pedals modified to suit the J. L. engine, referencing drawing sch. 3617.
View original record FROM DA. Original C. to [redacted] HS. [redacted] BENSPORT PEDALS. DA2/28.12.32. x4553. Herewith we send A. sch. 3617 showing the clutch and brake pedals modified to suit the J. L. engine, and also…

img218 Potential solutions for issues with the Phantom Gearbox's second speed synchro-mesh.
View original record RS. FROM HDY. HDY1/wS.12.32. PHANTOM GEARBOX - SYNCHRO MESH 2nd. SPEED. X7310 We shall no doubt have instructions from R. before long on this question, but in the meantime we see several possibilities…

img219 Deferring work on the internal combustion turbine to focus on more immediate commercial projects.
View original record F. ) FROM R. R. ) L.R.) C. to SGT. WOR. HS. HY. ORIGINAL R6/W6.12.32. Sent off 9.12.32. x2064 INTERNAL COMBUSTION TURBINE. Referring to LR1/A21232, I think this subject is too far away for us to spend…

img220 Design and development of an experimental compression ignition two-stroke engine.
View original record E.G. FROM R. C. to S.G. W.R. H.S. UD ORIGINAL R1/6.12.32. Sent off 9. 12. 32. X4433 re. COMPRESSION IGNITION TWO STROKE EXPERIMENTAL UNIT. Referring to your letter to the Air Ministry of the 30. Nov.,…

img221 Potential engine design issues with the little end, piston cooling, and combustion chamber.
View original record (2) A further examination of the drawings suggests that the little end as shown would not last even for a trial. Ricardo had to depart from the orthodox, and fit a spherical little end, which we saw,…

img222 Benefits and wider adoption of an anti-spilling valve on radiators.
View original record HS. FROM R. ORIGINAL R3/E6.12.32. Sent off 9.12.32. A3456 re. ANTI-SPILLING VALVE ON RADIATORS. I shall be very interested to know whether you are using on all our models the anti-spilling valve. This…

img223 New material for a petrol pump diaphragm and expressing a preference for a corrugated design.
View original record HS. FROM R. CONFIDENTIAL RO/W6.12.32. Sent off 9.12.32. 82677. C. to [text obscured by strikethrough] PETROL PUMPS. Referring to HS/RM13/MA21232. I am very pleased to hear that you have some more…

img224 Bensport brake leverages, detailing scheme 3615 for a three-rod connection.
View original record ORIGINAL Ex. FROM. DA. DA3/10.12.32. C. to Sir W.H. HS. F. BENSPORT BRAKE LEVERAGES. X4553 Herewith we send N. sch. 3615. shewing the total leverages on Bensport when using the three rod connection…

img225 Letter to coachbuilder Thrupp & Maberly regarding the construction of sample bodies for a Bentley 'B'.
View original record Hs ORIGINAL LID 8293 TEL. WEST WITTERING. 253. XXXXXXXXXXXXXX XXXXXXXXXX "OAMACHA", EAST WITTERING. NR. CHICHESTER. SUSSEX. KV2/10.12.32. DECEMBER 10TH? 1932. Messrs Thrupp & Maberly Ltd., 108,…

img226 Specification of coachwork for a Thrupp & Maberly Sports Saloon on a Bentley 'B' model chassis.
View original record THRUPP & MABERLY SPORTS SALOON. MODEL BENTLEY "B". SPECIFICATION OF COACHWORK. HS/- CHASSIS. Bentley "B" Model. "E" Type Steering. Untarnishable finish. Chromium throughout. 18ins. rims. 5.500ins.…

img227 Specifications for a Four Door Sports Saloon coachwork, including accessories, weight limits, delivery, and a list of related drawings.
View original record INSTRUMENT BOARD. The actual design of this board and its position will be sent as a separate design. SCUTTLE ISOLATION See N.Sch.3486. TOOLS. Road tools to be carried under the bonnet. The other…

img228 The painting and heater installation for Sir Henry Royce's car.
View original record TO HS. FROM EV. EV3/10.12.32 COPY TO SS. 84692. RE CAR FOR SIR HENRY ROYCE BART. We have now received 20.G.4. and it is at Messrs Park Ward &Co. We tried to get it accepted here in its present colour…

img229 Causes of transmission rattles, referencing historical context from the Silver Ghost and potential solutions like rubber couplings.
View original record HS. FROM R. TRANSMISSION RATTLES. With reference to the above, which seem to exist somewhat on all our cars, this as you know is an old fault, and worried us on the Silver Ghost in 1912., especially…

img230 Three methods for achieving satisfactory engagement in single-plate clutches.
View original record HS. FROM R. ORIGINAL R2/M12.12.32. X7300 Y3300 [Text crossed out: Cc to CC. WRP. EW. PA.] CLUTCHES. In the case of single plate clutches (which are the almost universal type) there seem to be 3 ways…

img231 Design and effectiveness of brake servos, particularly for the Peregrine model, and a new proposed system for the 25HP model.
View original record HS. FROM R. re. SERVOS. (ESPECIALLY PEREGRINE.) R3/W12.12.32. S-4 x40-7 x4553 I was pleased to hear RM. say the present type on Peregrine is doing well. I understand that on these smaller cars at…

img232 Use of hydraulic transmission and servo versus direct braking.
View original record HS. FROM R. R5/412.12.32. [Struck through text: C. to BG. WOH. DF. DH.] BRAKES. Y 2355 Y 4360 It seems to me that we must not expect to use hydraulic transmission, and a servo. If we use the former we…

img233 Modifications to the steering and front suspension to lower the Peregrine carburetter for effective distribution.
View original record HS. FROM R. C to [text struck through] DA PERIGRINE CARBURETTER. EFFECTIVE DISTRIBUTION. x4037 I learned from HS. that the distribution is largely cured by making the hot spot more effective, but they…

img234 Issues with back axle control and suggesting potential improvements.
View original record HS. FROM R. ORIGINAL R6/W12.12.32. C. to SC. WOR. BY. DA. CONTROL OF BACK AXLE. Y 5350. I am sorry to hear that our back axle control, even with a long spring control, is hardly good enough. We should…

img235 Replacement of item 16-G-4 with 20-G-4 and its transportation to Derby.
View original record MS. FROM R. ORIGINAL 20 - G - 4. TO REPLACE 16 - G - 4. R1/W13.12.32. Y4692 I think a man should be sent down here to take away 16-G-4. to Derby direct, on Saturday next, Dec. 17. It is expected that…

img236 Modification to the Peregrine rear engine suspension, suggesting a rubber bush to replace the ferodo.
View original record FROM DA. C. to [redacted] HS. DAL/WT.12.12.32. X4027 PEREGRINE REAR ENGINE SUSPENSION. Herewith we send N. sch. 3619. showing the suggested modification to the rear engine suspension of the Peregrine…

img237 Instruction to modify the Peregrine carburetter's venturi tube for less air obstruction.
View original record HS. FROM DA. Copy to E. ORIGINAL Rm DA1/W15.12.32. PEREGRINE CARBURETTER. x4027. R. instructs that the venturi tube in the Peregrine carburetter should be tried with a slightly less taper towards the…

img238 Modifications to the Peregrine steering column to fit a larger carburetter.
View original record ORIGINAL. FROM DA. DA2/M15.12.32. C. to Sir WOH. HS. PEREGRINE STEERING. x4027. We send herewith N. sch. 3622. showing the modifications to the Peregrine steering column to provide for a larger…

img239 Modification to the Peregrine steering tube and pendulum lever.
View original record FROM DA. C. to [REDACTED] HS. [REDACTED] PEREGRINE STEERING. DA1/517.12.32. 84027. Herewith we send N. sch. 7623. - the side steering tube to suit the steering in the frame recently sent you. It will…

img240 Peregrine steering clearances, the steering box, and the scaling down of the whole steering system.
View original record ORIGINAL M. FROM D.A. DA2/17.12.32. C. to W.F. HS. E. PEREGRINE STEERING. 84077 Herewith is d. sch. 3625, an enlarged sketch of the clearances inside the steering column with a 1.75" outer tube. This…

img241 Modifications for fitting front axle control to existing 20/25 cars.
View original record P/. FROM D.L. C. to WOR. MS. DA3/M17.12.32 Y curves & cubes 20/25. FRONT AXLE CONTROL. We have gone into the question of fitting front axle control to existing 20/25 cars to overcome the difficulty…

img242 Providing a thrust surface for the reverse gear and retaining the servo drive lubrication scheme.
View original record HS/GRY. FROM HDY. HDY1/W17.12.32 ORIGINAL [Crossed Out] To EX. E. HMG. [Crossed Out] P. 2. SYNCHROMESH. X7310. REVERSE GEAR. We agree that a thrust surface should be provided to prevent movement of…

img243 Arrangements for the collection and fitting of two Bensport bodies, a saloon and an open car.
View original record TO HS. FROM EV. ORIGINAL. E/19.12.32. COPY TO WOR. T. RE BENSPORT BODIES. x2 73. x4 5-3. We are expecting the lorry to be here tomorrow morning to collect the saloon body for the first Bensport. All…

img244 Modifications to the Benesport servo brake system to reduce friction and alter leverage.
View original record DY. FROM DA. C. to ED. WOR. WS. HS. BENESPORT SERVO. On N. sch. 3610. we shewed a method of picking up the scissors lever directly so as to eliminate an extra rod to the balance lever. This scheme has…

img245 Design and material choices for a Private Venture aero engine.
View original record RO ) FROM R. RY ) HS. ) C to SG. WGE. H. R1/M20.12.32. Sent off 23. 12. 32. AERO ENGINES. X23174. PRIVATE VENTURE ENGINE. The drawings I have received of the P. V. engine look very hopeful for a good…

img246 Technical report discussing cylinder distortion, P.V. blower drive, and propeller design.
View original record (2) You will see that in favouring the adoption of the two piece block and J. Z. cylinder, we are removing the cause of distortion, which should considerably improve the condition under which the…

img247 Performance of the Peregrine model, including comparisons, and component considerations for gearboxes and damper control.
View original record HS. FROM R. Copy to SS. Wont, HH, BK, DA, HJW. R3/W20.12.32. Sent off 23.12.32 8407. PEREGRINE PERFORMANCE. I think your memos., and GWH's remarks, are quite good, and explain the matter very…

img248 Design for a helical second-speed gear for the 'Prechine' model.
View original record BY. FROM HDY. ORIGINAL. HDY1/M24.12.32 C. to SG. WDH. LS. E. DA. R&G. Y4027. HELICAL SECOND SPEED. PRECHINE. H. scn. 3629. which we send herewith shows a design for a helical 2nd. speed with ground…

img249 Shock dampers, detailing a differential drilling method for locking the lever bolt nuts.
View original record BY. FROM HDY. C. to SG. WOH. HS. E. BA. RHC. HDY/2/24.12.32. X235. SHOCK DAMPERS Herewith is N. scl. 3527. shewing a differential drilling for the locking of the nuts for the inner and outer lever…

img250 Print for an independent front wheel suspension system and its potential patentability.
View original record BY/[strikethrough]AH.[/strikethrough] FROM DA. C. to [strikethrough]SG. WOR.[/strikethrough] HS. [handwritten]X721[/handwritten] INDEPENDENT FRONT WHEEL SUSPENSION. We send herewith print of R. Sch.…

img251 List and comparison of Bentley 'A' and 'B' model body weights with an explanation of weighing methods.
View original record HS. FROM DA/EV. DA/EV1/W24.12.32. C. to Su. WOR. BY P. H. [text crossed out] BENTLEY 'A' BODY WEIGHTS. 1. Pere. 2. 3595. Four light saloon. 7 c. 0 q. 20 lbs. 2. Pere. 2. 3624. " " 7. 2. 10. 3. Pere.…

img252 Investigation into excessive torsion on the Peregrine foot brake leverages and proposed modifications.
View original record ORIGINAL. DA2/M24.12.32. Fr. FROM DA. C. to WOP. WOM. HS. T. 84027. PEREGRINE FOOT BRAKE LEVERAGES. We send herewith N. sch. 3627. shewing a layout of the Peregrine brake leverages as tabulated on…

img253 New scheme for the Peregrine steering column and the angle of the worm gear.
View original record ORIGINAL DT. FROM DA. C. to SST. WOR. HS. ET DA3/M24.12.32 Y4027 PEREGRINE STEERING COLUMN. Herewith we send N. sch. 3625. shewing the lower part of the steering column scaled down approximately .5…

img254 Design and material choice for wider brake drums and steel shoes for the Phantom II.
View original record DY. FROM DA. ORIGINAL DAH/M24.12.32. C. to Sir WOR. HS. E. PHANTOM 2. WIDER BRAKE DRUMS WITH STEEL SHOES. 87360. 84612. We send herewith N. sch. 3618. showing the wider brake drums on the front axle…

img255 Proposal to manufacture the Peregrine dashboard as a pressing.
View original record ORIGINAL. E. FROM E.A. C. to cc. WOR. HS. BH. DAL/428.12.32. PEREGRINE DASHBOARD. With reference to the suggestion to make the Peregrine dashboard into a pressing, we are entirely in favour of this,…

img256 Temporary scheme for a helical second-speed gear and proposed design alterations.
View original record H. FROM HDY. ORIGINAL HDY/L/29.12.32. C. to Mr. WDR. Mr. HS. I. Day-RHC. BENSPORT - HELICAL SECOND SPEED. 84553 M. scn. 3630. herewith shews a temporary scheme for a helical 2nd. speed arranged to…

img257 Scaling down of components for the Peregrine steering column, including the wheel boss and central switch.
View original record Pf. FROM PA. ORIGINAL. C. to Sqr-Ldr. HS. E. DA1/29.12.32. 84057 PEREGRINE STEERING COLUMN. We send herewith N. sch. 3812, the top part of the scaled down column. It will be noticed that we have not…

img258 Suggesting actions to be taken by Derby regarding the exhaust fishtail and petrol filler for the Peregrine model.
View original record SECRET. ORIGINAL TO G.T. FROM E.V. COPY TO H.S. RE PEREGRINE. LID Y4027 With reference to your CX4/WW.29.12.32. we would suggest the following action be taken by Derby. EXHAUST FISHTAIL. We notice…

img259 Procurement of a set of wheel discs for Bensport and Peregrine models.
View original record TO HS. FROM EV. SECRET. ORIGINAL. EV5/9.1.33. COPY TO HN. RE DISCS FOR BENSPORT AND PEREGRINE. It has been agreed that we should have a set of discs for wheel such as those used on B.3. or Pere. 2. so…

img260 Design changes to differentiate the Peregrine model from the 25.HP model, focusing on coachwork and the instrument panel.
View original record TO [redacted] FROM EV. SECRET ORIGINAL COPY TO [redacted] HS. [redacted] RE PEREGRINE. It has occurred to us that whilst we cannot skimp the specification of the Peregrine as a motorcar as the…

img261 Steering wheel positions and adjustments for the Peregrine models.
View original record ORIGINAL SECRET TO MR. [REDACTED] FROM EV. EVI/9.1.33. COPY TO [REDACTED], HS. W. STEERING POSITIONS, PEREGRINE. X4027 After careful consideration of the criticisms by Sales and Derby of the steering…

img262 Confirming agreements on design criticisms and modifications for the 2.Pere.2 model.
View original record SECRET EV4/9.1.33. TO S.G. FROM E.V. x293 COPY TO H.S. RE CRITICISMS OF 2.PERE.2. This is to confirm the agreements reached between yourselves and the writer concerning the criticisms of 2.Pere.2.…

img263 Modifications to the exhaust fish-tail and steering column controls.
View original record ZV4/9.1.33. cont. (g) EXHAUST FISH-TAIL. On the car seen by Sales this was 1.300ins. futher back relative to the rear crossmember than on the 25HP. Derby have been instructed to move it forward. (h)…

img264 Clearance between engaging teeth for helical second-speed gears on various car models.
View original record HS. ) FROM HDY. BY. ) C to SC. WOR. E. DA. ORIGINAL HDY2/M14.1.33. X4027 X4553 HELICAL SECOND SPEED GEARS. CLEARANCE BETWEEN ENGAGING TEETH. We understand that the Expl. Dept. have asked for more…

img265 The design scheme for a helical second speed for Bensport, detailing modifications and bearing considerations.
View original record PT. FROM HDY. C. to BG. WOM. HS. E. P-H. HDY/1/14.1.33. X4543 BENSPORT - HELICAL SECOND SPEED. We send herewith X. sch. 3636. and 3637. which shows the permanent scheme of helical 2nd. speed for…

img266 Alternative arrangements and bearing types for the Peregrine Transmission Shaft.
View original record To. C.G. Mr. Hs. from DA. DAL/N.14.1.33. Peregrine Transmission Shaft. -------------------------- We have looked further into the question of the arrangement of this unit following your criticism as…

img267 The arrangement and positioning of a scaled-down steering column.
View original record FROM DA. C. to Mr. Hives. Hs. DAL/14.1.33 X-227 Herewith is N. sch. 3651. - scaled down steering column in position in the [REDACTED] as we think it should be arranged. FRAME Our original intention…

img268 Adaptation of a 3-bolter shock damper for the 25HP front axle control.
View original record V. FROM Da. C. to V. W.A. H.S. 25HP. FRONT AXLE CONTROL. In view of the necessity for using a 3 bolter shock damper as a result of the 10,000 miles test, we have looked into the question of the…

img269 Letter discussing modifications and comparisons related to the Peregrine Clutch design.
View original record L. FROM DA. DA1/M17.1.33. C. to SF. WH. H. HS. PEREGRINE CLUTCH. V6227 Referring to our conversation on the telephone, we have looked at N. sch. 3513., the Peregrine clutch with increased friction…

img270 The Peregrine steering column, its position, and the gastighting of the floorboards.
View original record B/ FROM D.A. C. to S.L. W.R. HS. T. ORIGINAL DA2/M17.1.33. PEREGRINE STEERING COLUMN. Herewith we send M. Sch. 3653. shewing the scaled down column in position on the chassis. We have dealt with the…

img271 Technical design suggestions for the P.V. Engine and other experimental work.
View original record RG. FROM R. C. to Sir. W. P. HC. R1/M17.1.33. Sent off 21.1.33. x-917.b. AERO ENGINES - YOUR VISIT TO W.W. 3. 1. 33. I am sorry I was not in better form for discussing this work during your visit. (1)…

img272 Technical memorandum discussing design improvements and weaknesses in engine components like liners, pistons, connecting rods, and controls.
View original record (2) the P. V. by the J. 3. form of construction, but there is still the 'Griffon' which has not been much reduced. Very great efforts should be made with the liners (upon which the pistons and rings…

img273 Design flaws in riveted levers and proposing improvements based on design DES.1522.
View original record (3) in the overhanging balls under reverse stress, and the efficiency of the way in which these are riveted into their levers. Supposing for instance that the end is not a tight fit, or the hole is…

img274 Technical letter discussing camshaft timing and engine performance for Bensport and Peregrine models.
View original record HS. ) FROM R. E. ) [Text crossed out: G. to Sur. MCR. RG. WY] R3/M1/1.33. Sent off 23.1.33. BENSPORT. X45533 I am very pleased to hear that you are getting on so well with Bensport power unit, (and…

img275 Alternative designs for the Bensport gearbox actuating shafts.
View original record DY. FROM HDY. HDY1/M13.1.23. C. to S/W.R. HS. Y.4003 BENSPORT GEARBOX. ACTUATING SHAFTS. We note that the actuating shafts proposed by Derby and shewn by GB.212/3. do not follow our N. sch. 3596., and…

img276 Modifications to the universal coupling for helical second speed gears.
View original record YT. FROM HDY. GRY HDY1/M19.1.33. Y4/DRT C. to SG. WJR. HS. E-PA. UNIVERSAL COUPLING FOR HELICAL SECOND SPEED GEARS. N. sch. 3639. herewith shews slight modifications to the universal coupling recently…

img277 Coupling for the Bancroft gearbox damper governor drive.
View original record PY. FROM HDY. HDY2/W19.1.33. V.4552 C. to SC. WOH. HS. Er. FA. BANCROFT GEARBOX. DAMPER GOVERNOR DRIVE. We shew in M. sch. 3638. herewith the coupling between the servo drive shaft and the damper…

img278 Proposed re-arrangement for the Peregrine steering system controls.
View original record ORIGINAL 304 FROM DA. C. to G. WOH. H. HS. PEREGRINE STEERING. DA1/420.1.33. V/4627 With reference to the question of the controls raised in connection with N. scheme 3651., we send herewith N. scheme…

img279 High production cost of a patent luggage carrier and potential cost-reduction strategies.
View original record SECRET ORIGINAL TO HS. FROM EV. COPY TO SG. WOA. RE R-R PATENT LUGGAGE CARRIER. J.3. & PERE.2. Derby have informed SG. that the new combined apron and luggage grid designed by us for J.3. and scaled…

img280 Listing five key questions regarding the design and performance of aero engine connecting rods.
View original record FROM R. HS. to BB. WDR. AERO CONNECTING RODS (1) I am sure the trouble is loss of oil by rolling. (2) Is it better with forked or articulated rods? (3) Is it better with Kelmit or whitemetal? (4) Is…

img281 Modifications to the lever in the rocking shaft for J.3 type dampers.
View original record BY HS/RM. FROM HDY. HDY1/M23.1.33. Y285 X5520 C. to SG. WOR. Er. DA. J. 3. TYPE DAMPERS - MODIFICATIONS TO LEVER IN ROCKING SHAFT. R. has instructed two schemes for trial as shewn by N. sch. 3657.…

img282 Suggestions for higher indirect gear ratios for a Bensport 20/25 gearbox.
View original record HS/RM. ) FROM HDY. C.c. to SG. WOR. Er. DA. ORIGINAL HDY1/H24.1.33. X4853 BENSPORT GEAR RATIOS. As requested by HS/RM. we send suggestions - shown on B. sch. 3658. herewith - for higher indirect/gear…

img283 Alternative 'Bensport' gear ratios and their performance implications for competition.
View original record HS. ) FROM HDY. TO MR W.A. ROBOTHAM HDY/L/25.1.33. V/40543 BENSPORT GEAR RATIOS. If the gearbox ratios recently sent for the 20/25 box on the Bensport are considered to be what is wanted, we suggest…

img284 The seizure of bearings in silent 3rd speed wheels and potential lubrication issues.
View original record HS. FROM HDY. (Handwritten) For HDY2/425.1.33. (Handwritten) X & C 3rd. SPEED WHEEL SEIZURES. With regard to your recent remark on the telephone that there had been a number of seizures of bearings of…

img285 Modification to the J. 3 type spring-loaded damper gland.
View original record DN. HS/FM. ) FROM HDY. C. to SG. WOR. E. Ld. ORIGINAL HDY4/N25.1.33. J. 3. TYPE DAMPERS. SPRING LOADED GLAND. Although the type of spring loaded gland shewn on N. sch. 3634. is that used on the…

img286 Trial to reduce the speed of a Peregrine Dynamo.
View original record --B. ) FROM R. HS. ) BY. ) C. to SG. WOH. PEREGRINE DYNAMO. This was discussed here during HS. visit to WW. on the 20. Jan. I suggested reducing its speed to engine revs. for a trial, to see if…

img287 Technical memorandum discussing design improvements for shock dampers, focusing on glands and lever attachments.
View original record HDY ) FROM R. HS. ) DY. ) G. to SG. WCR. ORIGINAL R1/M27.1.33. SHOCK DAMPERS. Anything we arrange will require care in getting together tightly, and the least treacherous way is to make the parts…

img288 Overload testing on four different fixing models to determine their margin of safety.
View original record (2) Knowing the maximum load that ought to fall upon this fixing we ought to make the test I suggested recently, of over-loading, to see the margin of safety, and also the relative merits of say 4…

img289 Proposed scheme to address Bensport flywheel vibrations using a tail bearing.
View original record FROM DA. C. to Sir [REDACTED] HS. BENSPORT FLYWHEEL VIBRATIONS. As requested by Derby we have looked into the question of providing a tail bearing for the flywheel in conjunction with the multi plate…

img290 Technical memorandum discussing transmission slack in compound epicyclic gears and the role of fluid flywheels.
View original record HS. FROM HDY. GRY ORIGINAL HDY/1 - 28.1.33. See me HS COMPOUND EPICYCLIC GEARS. When the top gear is obtained by means of clutch at the forward end of the gears, as on the Wilson, and as proposed by…

img291 Roller bearing sliding joint on a propeller shaft, designed for the Peregrine car.
View original record FROM DA. C. to Ser WGR. HS. + PROPELLER SHAFTS. DA2/28.1.33. Y41J Y4337 Herewith is S. scheme 3647. showing a suggestion for a roller bearing sliding joint on the propeller shaft which was recently…

img292 The urgent need to improve the riding of the 45hp model with more effective dampers and automatic control.
View original record HS. ) FROM R. HDW. ) C. to Mr. Hives. P. re. 45hp. R2/L/30.1.33. x 255 x 120 We ought to realize that we cannot do much to this until we rebuild, but in the meantime the riding should be much improved…

img293 Issues and proposed improvements for the Peregrine model.
View original record HS. FROM R. COPY TO MR. WORMALD [struck through] PEREGRINE. 374 [handwritten] HS/WSO.30.1.33 Y.27 [handwritten] This is suffering from three things which must be improved: (1) Hot engine oil - a…

img294 With three technical points regarding aero engine design.
View original record EG. FROM R. C. to Mr. WOH. HS. HY. AERO ENGINES. (1) Does the blade rod type pass through the cylinder bore, both forked and central rods. (2) If the rest of the engine will bear extra revs. then the…

img295 Design changes to the shock dampers, specifically the lever boss and damper position.
View original record HS/RM.) FROM HDY. BP.) HDY/1/31.1.33. x 285 SHOCK DAMPERS. R. has instructed that the inner lever boss should be wider, and we accordingly send herewith N. sch. 3662. which shews a square shaft fixing…

img296 Solution for damper shaft distortion upon tightening a bolt.
View original record BS/RM.) FROM HDY. HDY2/W/31.1.33. Y235 SHOCK DAMPERS. With reference to your telephone message about distortion of the damper shaft when the bolt is tightened, we think that the best way to get over…

img297 Copy of a telephone message discussing an aero engine problem, specifically concerning bearings and connecting rods.
View original record Copy of telephone message received from W.W. 12 noon 6.2.33. 3. X2924 X3992 AERO ENGINE PROBLEM. Fr I was disappointed with Rg's message yesterday. I do not see any advantage in going to WW. at…

img298 Engine modifications and parts for high power testing, focusing on Goshawk engine reliability and lubrication.
View original record Contd:-2- There is no reason why the special fuel should not be used during the high power test by proving to prove the mechanical strength of the engine. I am a little bit short in knowing what the…

img299 Continued memorandum discussing the fitting of bearings with oil grooves and holes to get a true oil pressure reading in the crankshaft.
View original record Contd:-3- It will be necessary to fit these bearings with the oil grooves and holes mentioned above, so that we get a true reading of the oil pressure in the crankshaft. In a preliminary run it will…

img300 Design modifications for the Peregrine propeller shaft and its sliding joint.
View original record X. FROM R. HS ORIGINAL R1/W1.2.33. C. to Gov-WkR. HS. BY. PEREGRINE PROPELLER SHAFT. x427 Since we have found that the dynamically balanced propeller shaft will run quietly up to any speed approaching…

img301 Design and fixing of shock dampers, specifically the square levers and shaft connection.
View original record HDY ) FROM R. HS/RM. ) ORIGINAL. R2/M1.2.33. re. SHOCK DAMPERS. We have decided that the most hopeful fixing for both the inside and outside levers is the square, because if carefully machined, with…

img302 Potential simplifications and design improvements for aero engines, including controls and connecting rods.
View original record E. FROM R. ORIGINAL C. to CC. HOR. P. HS. DY. RWC. x3993 29172 AFRO ENGINES. It seems to me that we want to simplify the standard engine all we can, with the object of making it lighter and more…

img303 American piston design, evaporative cooling, special aviation fuel, and engine power ratings.
View original record (2) Regarding the pistons used in America, mentioned by HS/LOV., I do not quite understand the object of the cellular top, unless it is explained by the superior cooling by oil spray. I should not…

img304 Rough sketch for a Bensport 100 M.P.H. car.
View original record TO HS. FROM EV. BENSPORT. 100. M.P.H. CAR. Although for the moment the idea of producing a 100. M.P.H. car has to be put on one side, I am sending to you the rough sketch which I produced to shew Hs.…

img305 Blueprint of a proposed 100 MPH Bentley.
View original record ROLLS ROYCE, PRINT ROOM, APR 11 1933, DERBY. PROPOSED 100 M.P.H. BENTLEY. 41133

img306 Sourcing and design of Lucas lamps for Peregrine and Bensport models, including a proposal to modify an existing lamp.
View original record F. FROM DA/EV. C. to SC. WDP. RS. DY. CX. [ILLEGIBLE]TIONAL [Handwritten] Y 2727 Y 4583 PEREGRINE & BENSPORT - LAMPS. We believe HH. will confirm that after a visit by Sales Manager Mr. Pacey/of…

img307 The design, cost, and supply of a luggage grid for the Peregrine model.
View original record RG. FROM DA/EV. ORIGINAL DA/EV1/M2.2.33. C. to M/S. HS. SFT. RHO. E. BY. PEREGRINE LUGGAGE GRID. EV. went to Derby as suggested with a view to hearing Derby's criticisms of the Peregrine luggage grid…

img308 Proposed changes to the Bensport brake linkage layout and pedal shaft bosses.
View original record BY. FROM DA. ORIGINAL. C. to SC. WOP. HS. H. - BENSPORT BRAKE LINKAGE. We send herewith N. sch. 3684. - quarter sketchof the brake linkage layout embodying the proposed inverted levers on the foot…

img309 New damped flexible drive for incorporation into the clutch.
View original record BY. FROM DA. ORIGINAL. DA1/42.2.33. C. to SG. WOH. HS. HY. 17260 1300 R. has suggested a damped flexible drive for incorporation in the clutch which seems to have the advantages of being not only a…

img310 Aero engine connecting rod failures and comparing blade versus articulated rod designs.
View original record HS. ) FROM R. ORIGINAL R1/M3.2.33. C. to SC. WGR. F. EV. AERO WORK. CONNECTING RODS. I have read the memos. concerning these very carefully, especially the one written personally by HS. If I have the…

img311 Engine failure analysis, vibration reduction, and material considerations for components like crankshafts and rods.
View original record (2) (6) Regarding the reason for the failure being worse at No. 1. end of the engine I think it would be safe to conclude from the evidence of the split pins that vibration at this end of the engine…

img312 Design for a hand-operated valve for varying the damping on the Phantom model.
View original record BY. FROM HDY. ORIGINAL C. to SGR, WGR, HE. PHANTOM - HAND CONTROL FOR DAMPERS. We send herewith N. scn. 7640. which shows our design for the hand operated valve for varying the damping. The spring…

img313 Phone message compilation discussing the failure of aero connecting rods and potential solutions.
View original record S. FROM R. ORIGINAL COMPILATION OF 'PHONE MESSAGE. C. to WOR. EC. HS. Er. BY. re. AERO CONNECTING RODS. I have telephoned to WOM., RG., HS., E., BY., as follows: (1) At the moment my information is…

img314 Performance of fork and blade versus articulated connecting rods for the 'Eagle' engine.
View original record (2) (8) I believe that the first 'Eagle' shews that the oil film was not replaced quickly enough even with articulated rods, and one must conclude that the fork and blade type is much worse because…

img315 Confirmation of a phone message detailing testing procedures for Kestrel connecting rods.
View original record -RG.) FROM R. HS.) C...to CO. WDR. E. BH. [Strikethrough] CONFIRMATION OF 'PHONE MESSAGE TO DERBY. ORIGINAL. [Strikethrough] KESTREL CONNECTING RODS. Please make the following test without delay: (1)…

img316 The damper governor unit and connections for a 20/25 chassis.
View original record FROM HEY. ORIGINAL. HDY/4/7.2.23. 20/25 - DAMPER GOVERNOR. W. sch. 3641. herewith shew the damper governor unit with hand control valve as shown by. sch. 3640. fitted to the 20/25. chassis. With…

img317 Design modifications to the shock damper lever and a new casting for the damper body.
View original record FROM HDY. ORIGINAL RECEIVED C. to Sub-Dept. HS. E. P. SHOCK DAMPERS. The recent increase of width of inner lever (N. sch. 3662) reduced the length of the outer bearing, and E. has now instructed a…

img318 Automatic shock damper control and desired relief valve settings.
View original record HS. FROM HDY. ORIGINAL. C. to SG. WOR. E. DA. BY. SHOCK DAMPERS. With reference to the report on 19-EX., (see HS4/WJ2233.) with automatic shock damper control, R. has made the following remarks, which…

img319 Confirmation of a phone message regarding crankpin oil supply and oil groove arrangements for aero engines.
View original record ORIGINAL CONFIRMATION OF 'PHONE MESSAGE X. FROM R. C. to MR. HS. re. AERO ENGINES. R1/M9.2.33. x3998. We are telephoning to Derby this afternoon as follows: 'It is quite certain that the oil supply to…

img320 Modifications to the propeller shaft and gearbox for improved lubrication and oil retention.
View original record To-Bye from DA. Co-to-Sgr-WOT. He. T. -Wks. ORIGINAL DA./1/11.2.33. PENGUINE - PROPELLER SHAFT. As referred to in a recent memo (R./M/1.2.33) R. has suggested putting the sliding joint of the…

img321 Confirmation of a phone message to Derby regarding improvements to aero engines.
View original record sc. FROM R. CONFIRMATION OF 'PHONE MESSAGE TO DERBY. C. to WGR. BG. BS. C. to RY. & HY. re. AERO ENGINES. ORIGINAL RECEIVED I telephoned to Derby this morning as follows: I am very pleased to hear…

img322 Modification for the Peregrine steering column to prevent interference with the pedal assembly.
View original record EXT. FROM D.A. ORIGINAL TAL/WLB.P.R. C. to SG. WCR. HS. & HPN. 4027 PEREGRINE STEERING COLUMN. To avoid the difficulty with the Peregrine (and also J. 3.) steering columns, that when the column is…

img323 Confirmation of a phone message to Derby regarding issues and improvements for Aero Engines.
View original record 88 - FROM R. ORIGINAL C. to WOR. SC. HS. to R. DY. E. HY. CONFIRMATION OF 'PHONE MESSAGE TO DERBY, re. AERO ENGINES. (1) Since we have found some good features to put into the aero engines, and we are…

img324 Page discussing design considerations for exhaust valves, piston pins, and supercharger intake vanes.
View original record (2) (7) EXHAUST VALVES. If I remember rightly Crown (Firth's) was excellent for very severe loads during short periods, but was disappointing with more moderate duty over long periods, and you had to…

img325 Design and implementation of a new, larger 22-gallon petrol tank for the Bentley 'B' 4 model.
View original record M. FROM DA/EV. ORIGINAL LTD C. to Boy-Tuffn. HC. H-RBG. BENTLEY 'B' 4. - LARGER PETROL TANK. At the request of the Expl. Dept. we have got out a 22 gal. petrol tank for use on B. 4., shown on N. sen.…

img326 Potential application of asbestos spraying to car body panels by the 'Limpet' company.
View original record TO E.V. FROM Hs/Rm. ASBESTOS SPRAYING ON BODY PANELS. Many thanks for your note re the above. So far I have received no communication from the gentleman whom you mention. I believe that I have told…

img327 In-house manufacturing of sheet metal wheel arches for the Pere.2 model.
View original record LID ORIGINAL SECRET TO HS/Lid. from EV. COPY TO [REDACTED] SHEET METAL WHEEL-ARCHES, PERE.2. X 293 We note from your Hs/Lid.6/KT.9.2.33. that you have received a sheet metal wheel are for Pere.2. from…

img328 Suggestions for a central instrument board panel common to RR and Bentley cars.
View original record FROM DA/EV. C. to SGR. WDR. HS. ST. RDT. RR. & BENTLEY CARS. re. INSTRUMENT BOARD PANEL. We thank you for R1/HP1023?. and the attached prints of various suggestions for the central instrument board…

img329 Design points for an instrument panel, including switch placement, materials, and component selection.
View original record (2) but we see that with your design there is not this limitation. This frame can be screwed permanently into the edgewise grain of the wood but we cannot screw the patch into the back of the board as…

img330 Combined speedometer and tachometer unit and a single speedometer for various car models.
View original record (3) speedometer and tachometer patch based on Smith's effort, which we have seen, and consider to be extraordinarily good as far as the lighting is concerned. We suppose this combined unit will be…

img331 Clarifying the classification and nomenclature for four different Bentley/Bensport chassis models.
View original record SG. FROM DA/EV. C. to R. WOR. HE. BV. G. re. BENTLEY. As we have had so many different editions of Bensport, we think it should be made clear now we have classed our drawings. The nomenclature is as…

img332 Experimental features fitted to a car, including the crankshaft, cylinder head, carburetors, air silencer, and fuel system.
View original record To R. from Hw/Rm. c. to Sg. Tor. c. to V. By. Hw/Rm.1/XT.1.5.32. X5972 16.XI.IV. fitted - This car has a number of experimental features ENGINE. (a) Crankshaft. This has larger journals (2.250 dia)…

img333 Information extracted from remarks about the control and design of the proposed 40/50 epicyclic gearbox.
View original record B. FROM HDY. ORIGINAL HDY2/M28.2.33. C. to ES.DA- 40/50 EPICYCLIC GEARBOX. Y / 31a We send the following information which we have extracted from remarks made recently by R. regarding the control of…

img334 Two proposed drive types, a central torsion shaft and Bibby plate springs, for a Peregrine clutch with damped spring drive.
View original record A. FROM EA. ORIGINAL EA1/A28.2.33. C. to E.P. for nom. HS. & HBY. PEREGRINE CLUTCH WITH DAMPED SPRING DRIVE. We have gone into this matter a little further, and send three schemes herewith - A.…

img335 Redesign of a car's main electrical switch, its locking mechanism, and a proposed 6-position wiring scheme.
View original record HS/WST.) FROM R. [Struck through text: C - to SO, WOR, PM, EH,] ORIGINAL. CAR WORK. ELECTRICAL EQUIPMENT. R3/Wl.3.33. XL.29 SWITCH. When we decide we have a settled and lasting scheme we should…

img336 Merits of different carbon brushes and control systems for car dynamos.
View original record HS/WST.) FROM R. ORIGINAL R1/M1.3.33. C. to SO. WOR. PN. BY. CAR WORK. ELECTRICAL EQUIPMENT. Young DYNAMO. I am glad you have found some better carbon brushes for dynamos. I sent you a brand that had…

img337 With a diagram discussing modifications to coupling teeth for the silent second speed.
View original record HS. ) FROM HDY. ORIGINALLY HDY/1/M23.2.33 BENSPORT - SILENT SECOND SPEED. Y.4.S.S.3 With reference to the 2nd. speed working out as reported in HS/RM1/KT21233, we understand that the coupling teeth…

img338 Future aero engine development, proposing a smaller, lighter engine over an inverted or intermediate-sized one.
View original record From R. ORIGINAL C. to Mr. H.S. re. AERO ENGINES. H.S. was here on Wednesday the 22nd. inst., and during the talk that we had he pointed out that it would be many years before we got anything out of…

img339 Disapproval of Skefco type swivel bearings and listing preferred alternative bearing types.
View original record FROM R. ORIGINAL RH/24.2.37. C. to SG. WDH. HS. HE. W-Da. REX. H-VY. SKEFCO TYPE BEARINGS. K/G52 I do not wish to use the Skefco type of swivel bearings on any of our work, aero and car. Though they…

img340 Modifications to the Kestrel aero engine's exhaust valves.
View original record P/G. FROM R. C. to-CC. WOH. HS. HY. F. I. ORIGINAL R5/W24.2.33. x3822 AERO ENGINES - EXHAUST VALVE. The exhaust valves in the Kestrel high duty engine do not seem to give entire satisfaction so far. I…

img341 Proposed new switchbox and the universal adoption of vibrator control for the dynamo.
View original record FROM R. HS/WST. C. to Sir H.R. P.W. WST JNAL CAR WORK. ELECTRICAL EQUIPMENT. x3374 x6044 PROPOSED ENTIRELY NEW SWITCHBOX. I should not make a new one until we have a more definite programme. In…

img342 Features and advantages of a double-entry blower supercharger compared to a single-sided rotor.
View original record SG. FROM R. ORIGINAL R2/W28.3.33. Sent off 4.4.33. C. to WDR. HG. HS. BY. T. E. LR. SUPERCHARGERS. X4850. I fear Derby have not yet realised the features I am aiming at with the double entry blower.…

img343 Modifications to a hand control valve for a damper to increase operating lever travel.
View original record BY. FROM HDY. ORIGINAL C.c. to Mr. HS. Day MODIFICATIONS TO HAND CONTROL VALVE FOR DAMPER. We send N/ sch. 365 herewith which shews slight modifications to the hand controlled valve to give increased…

img344 Modifications to the Peregrine propeller shaft, gearbox, and splines.
View original record B. FROM T.A. COPY ORIGINAL C. to:- WOR. HS. & HBY. DAL/W25.2.33 X.62 PEREGRINE PROPELLER SHAFT. With further reference to DAL/W11233., sending some schemes for enclosing the propeller shaft sliding…

img345 Design, capacity, and potential modifications of a larger petrol tank for the Bensport model.
View original record TO B. FROM EV. ORIGINAL EV3/2.3.33. COPY TO SGT. WCR. HS. BT. LARGE PETROL TANK. B.4. We have read Hs7/MJ.28.2.33. Sg13/B.27.2.33. & BY.4/G.24.2.33. re the larger petrol tank on Bensport. The question…

img346 Suitability and fitting challenges of Lucas and Klaxon windscreen wipers.
View original record TO HS/WST. FROM EV. ORIGINAL EVI/3.3.33. COPY TO HW. WINDSCREEN WIPERS. We are very interested to note that you are going to do some bench tests on the Lucas and Klaxon windscreen wipers. The only…

img347 Supplier relationships and quality issues with lamp manufacturers Lucas and Butlers.
View original record six months ago looked very promising. We are now told that it has been dropped because it was proving too expensive for the mass production people. As far as Messrs Lucas are concerned it is very…

img348 Response to a test report on the B.4 model in France, addressing eight specific body criticisms.
View original record TO WB. FROM EV. COPY TO HS. ORIGINAL RE BENSPORT. B.4. See me HS x4395 >293. We thank you for your Sg5/S22.2.33. referring to the report on the test of the B.4. in France. We will deal with the body…

img349 Design and functionality of a multi-position electrical switch.
View original record FROM R. ORIGINAL C. to FOR. HS. HY re. SWITCH. E7/M10.3.33. Sent off 14.3.33. X6139 It will be understood that a switch is a very important part of the electrical equipment, and a fault in it often…

img350 Technical discussion on the design considerations for an electrical switch, comparing different types and materials.
View original record (2) It is possible that the switch would be rather a deep affair. The handle would have to be insulated. It looks as though rings or segments would be threaded on and cramped endways, using bakelite…

img351 Design sketch for a three-post electrical component, likely a switch or connector for lamps.
View original record Screw to regulate drop. Comp: spring. Flex: Connection to lamps or other group. /Some fingers on each post. Made of sheet brass or extruded metal. Split and clamped on bar.

img352 Gearbox shaft whirling issues and clutch design improvements for the Peregrine model.
View original record HS. ) FROM R. E-H ORIGINAL R4/M10.3.33. C- to SO. WOR. BY. PEREGRINE. See me Sent off 14.3.33. H GEARBOX. You will remember I have written several times that I do not like the extension on the back of…

img353 New friction damped driving shaft, brake issues, petrol consumption, and defective Lucas parts.
View original record (2) We have also sent you a friction damped spring drive of a novel design which embodies our small dia. torsionally flexible driving shaft in parallel with rigid friction damping. We understand…

img354 Dynamo performance, focusing on series winding, commutator sparking, and potential improvements.
View original record HS Received FROM R. ORIGINAL VIBRATOR CONTROL. R5/W10.3.33. Sent off 14.3.33. x6092 I am pleased to hear that you are making some progress as regards vibrator control and dynamo. In one of your memos.…

img355 Starter motor windings, stalling torque, and comparing a taper armature design to a Bosch design.
View original record HS/WST. FROM R. ORIGINAL R6/W10.3.33. Sent off 14.3.33. x543 C. to SS. WCR. BY. T. STARTER MOTORS. With reference to the starter motor we should expect to find the maximum stalling torque increase…

img356 On Bensport clutch operation, suggesting changes to the levers to prevent engine rocking.
View original record K. FROM DA. C. to HS. EH. ORIGINAL 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 thrust…

img357 Design and construction of the radiator grill and apron for Bensport.
View original record B/ PROD TA/EV. ORIGINAL DA/EVL/M16.3.35 C. to Mr. MOW. HC. BENSPORT - RADIATOR GRILL & APRON. We send herewith W. sch. 3706. showing the radiator, grill, and front apron, for Bensport. As this…

img358 Recession of the control sylphon for dampers.
View original record HS/RM. FROM HDY. ORIGINAL. HDY1/A16.3.33. C.c. to SC. WOR. E.P. TA. BY. DAMPERS. [Handwritten: X2.25.] RECESSION OF CONTROL SYLPHON. It appears to us that from the point of view of recession of the…

img359 Fitting of a radiator grill for a 3.4L Bensport model without shutters.
View original record TO [redacted] FROM EV. COPY TO [redacted] HS. II ORIGINAL RADIATOR GRILL FOR 3.4L As requested by Hs/ltm. we send herewith N.Sch.3710. showing a radiator grill for Bensport when no shutters are fitted…

img360 Relocation of the luggage carrier and petrol tank filler to accommodate a longer body.
View original record TO [REDACTED] FROM EV. ORIGINAL BVI/22.3.33. COPY TO [REDACTED], HS. 25.HP. GRID & PET.OL FILLER. We send herewith N.Sch.3707. shewing the Luggage Carrier and Petrol Tank Filler moved rearwards to…

img361 Observations and proposed modifications for Peregrine J. 3 Type damper bodies.
View original record HS/RM. ) FROM HDY. DY. ) ORIGINAL. HDY1/M27.3.33 x2?. S. to SG. WOR. F. DA. DAMPERS - J. 3. TYPE. We have just received production drawings F100892 & 3. Front, and F100889 & 90. Rear, for the…

img362 Requesting a test on a gear type pump for a proposed epicyclic gearbox.
View original record HS. FROM HDY. R-ORIGINAL HDY3/M27.3.33. C. to SG. WOR. E. DA. DY. Will you get this done v. 27.3.33. HS GEARBOX CONTROL. R. has suggested that high pressure oil should be used for the control of the…

img363 Instructing a trial for a non-return valve with restriction for dampers, concerning the recession of the sylphon.
View original record HS/RM. FROM HDY. C. to S.G., WOR, E, DA, BY. ORIGINAL HDY2/M27.3.33. V225 DAMPERS - RECESSION OF SYLPHON. R. has instructed that the non-return valve with restriction suggested some weeks ago should…

img364 Modifications to the change gear lever to prevent rattles and improve functionality.
View original record (COPY) FROM HDY. HS.) Copy to SS, MOR, E. DA. MODIFICATIONS TO CHANGE GEAR LEVER. At the request of the Expl. Dept. we have made various modifications to the reverse stop on the change gear lever to…

img365 Design for fool-proof and reliable switches, covering contacts, handles, and positions for lighting and ignition.
View original record E. FROM R. ORIGINAL. WST C. to S. WOR. MS. H. re. SWITCHES R3/428.3.33. Sent off 4.4.33. x639 You will realise that the connections to the switches should have contacts as fool-proof as possible, easy…

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