Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Secret memo discussing engine mounting experiments to reduce vibration, and comparing 6-cylinder vs 8-cylinder engines. | ||
| View original record | HS. E.) FROM R. BY. DA.) (At Le Canadel.) SECRET. REC'D AT WW. 8. 1. 29. R1/M4.1.29. C. to BJ. WOR. SS. ENGINE MOUNTING. X7005 X7380 X7250 We ought to be better off than standard Phantom because we… | ||
| Scan002 | Secret memorandum discussing various engine mounting schemes to address roughness, based on a telegram from 'R.' detailing tests with rigid and flexible feet. | ||
| View original record | FROM E. C. to [REDACTED] HS. DA. PY. RM. SECRET SS. ENGINE MOUNTING. X7005 X738 [Handwritten and crossed out] We have this morning received your telegram as follows, via Royce Ltd. Manchester:… | ||
| Scan003 | Explaining the difference in life between front and rear road springs due to stress variations. | ||
| View original record | HS/RM. FROM DA. DA4/M5.1.29. ORIGINAL ROAD SPRINGS. X7410 Since speaking to you on the subject of the difference in the life of front and rear road springs on the bump, it has occurred to me that the… | ||
| Scan004 | Alterations to the SS Chassis clutch system, comparing it to the 20HP and Phantom models. | ||
| View original record | BA. HS. E. FROM R. (At Le Canadel.) ORIGINAL! SECRET. R1/M6.1.29. REC'D AT WW. 9. 1. 29. C. to BJ. WOR. SG. CWB. PN. DY SS. CHASSIS - CLUTCH. X7300 So far as I understand there is no need to make any… | ||
| Scan005 | Agreeing to defer the 'SS. Green Lamp Scheme', a battery charge indicator, due to concerns about its cost and complexity. | ||
| View original record | HS. BY. E. EFC. FROM R. (At Le Canadel.) SECRET R2/M6.1.29. REC'D AT WW. 9. 1. 29. C-to-SS. WOR SS. GREEN LAMP SCHEME. X4640 I agree to defer this: it has nothing specially to do with this chassis,… | ||
| Scan006 | Use of duralumin versus aluminium castings for brake shoes on Phantom and 20HP models. | ||
| View original record | HS. ) FROM DA. BY. (crossed out) SECRET. ORIGINAL (stamp) DA3/M7.1.29. 'SS' BRAKES. X7420 (crossed out) X7360 X52420 We believe that the duralumin forged brake shoes are very expensive. Since… | ||
| Scan007 | With diagrams discussing the issue of water and mud ingress in 'SS' brakes and proposing solutions. | ||
| View original record | BY. FROM DA. Copy to HS. SECRET. ORIGINAL 'SS' BRAKES. X7360 7420 The trouble of the rear brakes filling with water and mud is due to the lip on the guard overlapping the rib on the brake drum, so… | ||
| Scan008 | Leak in the SS crankshaft's rear oil retainer and proposing a design alteration. | ||
| View original record | FROM E. Copy to BJ. " Hdon. (struck through) " HS. " EX. ORIGINAL. SECRET. SS. CRANKSHAFT. REAR OIL RETAINER. X7010 (struck through) X7000 (struck through) The leak at the above point reported on the… | ||
| Scan009 | Proposal to modify a crankcase joint with a double oil flinger and drain, referencing related blueprints. | ||
| View original record | (2) FIG 4. We now propose to make SS. with a double flinger and oil drain between, as on blueprint LeC. 2636. herewith. The crankcase joint remaining as before, and the bottom half can be dropped… | ||
| Scan010 | Comparative analysis and diagrammatic breakdown of SS and Chrysler engine mounting systems. | ||
| View original record | X. FROM E. C. to BO. WOR. HS. SECRET ORIGINAL re. ENGINE MOUNTING. X4012 The SS. chassis fitted with all rubber engine suspension achieves a remarkable degree of smoothness over its full range of… | ||
| Scan011 | Engine suspension schemes, testing rubber liners and solid feet to balance engine smoothness with chassis steadiness. | ||
| View original record | (2) With a view to trying a suspension somewhere between rigid and our present flexibility as you suggested, it was agreed to rig up an SS. engine on solid feet at each end having rubber liners in the… | ||
| Scan012 | Bodywork and associated details for various experimental car models. | ||
| View original record | HS. BY. } FROM R. DA/EV. } (At Le Canadel.) ORIGINAL C: to BJ. WOR. SC. G. LHS. CX BODYWORK, AND ASSOCIATED DETAILS. R1/M10.1.29. REC'D AT WW. 14.1.29. X7830 X7260 X7600 The double wheel carrier has… | ||
| Scan013 | Scheme for a friction-held cross member to address 'SS. Front Jellying'. | ||
| View original record | PY. FROM DA. Copy to PJ. HS. SECRET. SS. FRONT JELLYING. X7380 X7005 Herewith we send N. scheme 2793., a rough scheme of a suggested position for a friction held cross member in the SS. frame, which… | ||
| Scan014 | Proposal for strengthening the SS Shock Damper's outer casing due to fractures observed during testing. | ||
| View original record | FROM DA. Copy to HS. SECRET. SS. SHOCK DAMPER. Herewith we send N. sch. 2794. shewing how we suggest the outer casing should be strengthened in view of the fractures that have occurred on the bumping… | ||
| Scan015 | Fracture of a shock damper shaft and proposing a strengthened design scheme. | ||
| View original record | BY. } FROM DA. HS. } SECRET. ORIGINAL DA2/M10.1.29. SS. SHOCK DAMPERS. X7520 X8520 With reference to BY8/G8129., reporting the fracture of a shaft after 6 hours, we are sending N. scheme 2795.… | ||
| Scan016 | Design modifications to the SS cross steering tube to improve clearance and assembly. | ||
| View original record | ORIGINAL SECRET FROM DA. Copy to HS. SS. CROSS STEERING TUBE. Herewith we send N. sch. 2797. shewing the cross steering tube end with the balls increased to 1.250 dia. It will be seen that in order to… | ||
| Scan017 | Internal memorandum discussing an order for a Close Coupled All-Weather body, including specific modifications and delivery timelines. | ||
| View original record | to HS. from DA/EV. copy to EV2/TP:2.1.29. RE CLOSE COUPLED ALL-WEATHER. X5530 X5770 X5380 16.G.4. We placed an order for the above body with Messrs Barker & Co. on Thursday last, leaving with them all… | ||
| Scan018 | Modifications and proposals for the speedometer drive. | ||
| View original record | FROM DA. Copy to HS. ORIGINAL SPEEDOMETER DRIVE. X7310 We thank you for BY/CGH10/N8129. giving particulars of the standard speedometer drive end. We send herewith N. sch. 2796. shewing the proposal… | ||
| Scan019 | Addition of a rear screen to the specification for an open tourer body for chassis 23.EX. | ||
| View original record | EV3/14.1.29. to [redacted]. from EV. ORIGINAL copy to HS. RE 23. EX. X7830 OPEN TOURER FOR "S.S". X 1087 We forget to mention the fitting of a rear screen to to open body which the Carlton Carriage… | ||
| Scan020 | Overheating spark plugs during a 20HP 10,000-mile test and proposing engine improvements. | ||
| View original record | HS. E. } FROM R. [REDACTED] } (At Le Canadel.) ORIGINAL SECRET R2/M14.1.29. REC'D AT WW. 18.1.29. 20HP. AT CHATEAUXREUX. 10,000 MILES TEST. X5840e X.5970 X1918 X5005 Apparently there is not much wrong… | ||
| Scan021 | Engine mounting solutions to address frame flexibility and vibration issues in 'SS' & 20HP cars. | ||
| View original record | HS. E. ) FROM R. DA BY ) (At Le Canadel.) SECRET ORIGINAL R1/M14.1.29. REC'D AT WW. 18.1.29. 'SS' & 20HP. CARS. X7005 X7380 ENGINE MOUNTING ETC. X5005 Apparently there was truth in the idea that the… | ||
| Scan022 | Design proposal for a perforated sheet rubber component with suggested dimensions and ferrules. | ||
| View original record | (2) It would seem advisable to have some design of sheet rubber equivalent to perforated so that it would squeeze down from say .25 to .2 and still leave some cavities.- .15 1.5 in thin part. I am… | ||
| Scan023 | Design memorandum with a cross-sectional drawing discussing options for mounting an engine back plate to a frame. | ||
| View original record | (3) PLAN. The back plate must locate the engine. This might be bent up at the end to form surfaces and have angles bolted to the frame between which the rubber could fit by being bent the same way as… | ||
| Scan024 | Secret memo regarding a suggested modification to the SS rear shock damper piston. | ||
| View original record | BY. FROM DA. SECRET. DA2/M16.1.29. C. to BJ. HS. SS. REAR SHOCK DAMPER. X7520 We suggested a day or two ago that the trouble with the piston should be overcome by thickening the end wall 30%. We have… | ||
| Scan025 | Lubrication method for a cross steering tube, specifically how oil is carried to the pads. | ||
| View original record | PT. FROM DA. Copy to HS. ORIGINAL SECRET SS. CROSS STEERING TUBE. X7425 / X3806 With reference to N. scheme 2797.. sent you on Sunday last, we did not shew the lubrica- tion from the Bijur system… | ||
| Scan026 | Secret report on SS chassis engine improvements, specifically the 19-EX engine, and a suggestion to use up old Phantom parts. | ||
| View original record | |||
| Scan027 | Experiments and suggestions for improving an SS engine's exhaust system. | ||
| View original record | HS. BP. } FROM R DA. DY. } C. to BJ. WOR. SG FN. ONB. O SECRET ORIGINAL SS. ENGINE - EXHAUST HS/RM. has temporarily made some of the experiments suggested towards more effectively quietening the… | ||
| Scan028 | Status of a friction head scheme and a front shock damper scheme. | ||
| View original record | HS. DA. } FROM R. E. BY. } (At Le Canadel.) C. to BJ, WGR, SG SECRET. "SS". R2/M17.1.29. REC'D AT WW. 21.1.29. ORIGINAL X7520 N. SCHEME 2793. Temporary scheme of friction head by DA. not now required.… | ||
| Scan029 | Four different schemes for luggage and spare wheel arrangements on the SS model. | ||
| View original record | FROM DA/EV. SECRET DA/EV1/M17.1.29. C. to HS. re. LUGGAGE & SPARE WHEELS ON SS. X7400 We send herewith N. sch. 2799. shewing following threatments for dealing with the spare wheels and luggage on SS.… | ||
| Scan030 | With a diagram proposing a quieter exhaust design for the SS & 20HP cars. | ||
| View original record | HS. E. DA. BY. FROM R. (At Le Canadel.) ORIGINAL SECRET R1/M17.1.29: REC'D AT WW. 21. 1. 29. C. to BJ. WOR. SG. PN. CWB. SS. & 20HP. CAR EXHAUSTS. X7230 X5230 Following up the idea already given, it… | ||
| Scan031 | Different SS engine suspension schemes, including one with rubber-lined feet. | ||
| View original record | FROM E. Copy to Bd. Wer. HS. SECRET. E4/M17.1.29. SS. ENGINE SUSPENSION. X7005 We are expecting any moment to hear from HS. as regards the results obtained with SS. engine mounted on rigid front feet… | ||
| Scan032 | Difficulties with the SS model oil filler due to its proximity to the klaxon horn, and potential short-circuit risks. | ||
| View original record | FROM E. SECRET. E3/M17.1.29. Copy to HS. BY SS. OIL FILLER. X7190 X1163 Reason No. There is some difficulty on SS. with the oil filler due to the klaxon horn occupying a position almost immediately… | ||
| Scan033 | Secret memo regarding the Crankshaft Rear Oil Retainer, sending drawings and seeking approval. | ||
| View original record | BY. [strikethrough] FROM E. SECRET. E1/M18.1.29. C. to [strikethrough]BJ.[/strikethrough] HS. SS. CRANKSHAFT REAR OIL RETAINER. X7010 We send you herewith drawings LeC. 2632. and 2636. mentioned in… | ||
| Scan034 | Secret memo regarding India 4 controls, accompanying drawings LeC. 2627 and 2630. | ||
| View original record | BY: FROM E. SECRET. E2/M18.1.29. C. to HS. INDIA 4. CONTROLS. X5240 X5080 We send you herewith drawings LeC. 2627. and 2630. mentioned in our memo. E2/M221228. to R. (copy to yourself.) E. | ||
| Scan035 | Query about raising the ignition tower by .125 inches on the India 4 model. | ||
| View original record | BY. FROM E. C. to HS. LeC. 2635. ORIGINAL SECRET E3/M18.1.29. INDIA 4. BATTERY IGNITION TOWER. X5880 We send you herewith the original of You will remember that we have asked if it is possible to… | ||
| Scan036 | Proposed redesign of a cast exhaust manifold, referencing blueprint LeC. 2638 and handwritten number X7230. | ||
| View original record | -R. FROM E. C. to B.I. HS. BY. manifold. SECRET. ORIGINAL E2/M19.1.29. SS. EXHAUST PIPE. X7230 We send herewith a blueprint of LeC. 2638., shewing a proposed cast exhaust manifold. We have endeavoured… | ||
| Scan037 | Secret memo proposing a blueprint for main bearings without liners to overcome shop difficulties. | ||
| View original record | ORIGINAL. FROM E. SECRET. E3/M19.1.29 C. to BJ. HS. BY. SS. MAIN BEARINGS WITHOUT LINERS. X7010 We send herewith a blueprint of LeC. 2639. shewing our proposal for the above to overcome the difficulty… | ||
| Scan038 | Secret memo concerning modifications sent for SS front shock dampers. | ||
| View original record | BY. [struck through] } FROM DA. SECRET. DA3/M19.1.29. HS. } SS. FRONT SHOCK DAMPERS. X7820 We have now sent you all the modifications that we propose to make to the front damper until we hear further… | ||
| Scan039 | Modifications to the SS Rear Shock Damper to overcome defects discovered during testing. | ||
| View original record | BY. FROM DA. C. to HS. SECRET. DA4/M19.1.29. SS. REAR SHOCK DAMPER. X7520 Herewith we send N. schs. 2801/2. shewing modifications to the existing rear shock damper, to overcome defects revealed on the… | ||
| Scan040 | Progress and difficulties in the design for lowering controls on the steering column. | ||
| View original record | HS. FROM DA. Copy to WOB BY ORIGINAL SECRET. DA1/M19.1.29. SS. CONTROLS ON STEERING COLUMN. X7240 X7430 Replying to HS4/T16129., we had made some progress with a design for lowering the controls on… | ||
| Scan041 | Progress and status of various technical modifications and improvements. | ||
| View original record | HS. FROM DA. ORIGINAL SECRET. SS. X7720 X4663 DA2/M19.1.29. With reference to HS1/116129., we are dealing with: Item 3. Improved front shock dampers. " 5. Improved exhaust system. " 9. Modified brake… | ||
| Scan042 | Mr. Minchin's feedback on his 20HP car, including suggestions for improvements and pricing. | ||
| View original record | DA/EV. FROM R. HS. (At Le Canadel.) REC'D AT WW. 26.1.29. C. to BG. SG. MR. MINCHIN'S CAR. 20HP. RR. X4118 X4553 X5530 Mr. and Mrs. Minchin stayed a day with us at Le Canadel, during the time Dodd was… | ||
| Scan043 | Secret memorandum concerning an improved screw head for SS carburetter mixture adjustment. | ||
| View original record | ORIGINAL BY. FROM E. SECRET. C. to HS. SS. CARBURETTER. MIXTURE ADJUSTMENT. X7080 We send herewith drawing LeC.2642., dealing with the above, and shewing an improved screw head for tightening the… | ||
| Scan044 | Secret memo discussing outstanding items and controls for the SS Production 10,000 Mile Car. | ||
| View original record | ~~WCR.~~ FROM DA. Copy to HS. SECRET. SS. PRODUCTION 10,000 MILE CAR. DA1/M21.1.29. X7941 X7240 X7770 X7430 E. has shewn me a letter from you re. items outstanding from WW. for the production 10,000… | ||
| Scan045 | 'E' to 'HS' discussing the urgency and progress of modifications for the 'SS' car. | ||
| View original record | FROM E. C. to HS. SECRET re. 'SS' CAR. Thank you for your memo. of the 19th inst. It had occurred to me that it was extremely important to get a modified car running in about 2 weeks if possible and I… | ||
| Scan046 | The K.S. gauge position and maximum body size, referencing scheme N. 2780 and model 19-EX. | ||
| View original record | ORIGINAL HS/RM. FROM DA/EV. DA/EV2/M21.1.29. re. K.S. GAUGE. X9038 X7830. Thank you for your HS/RM1/LG17129., re. K.S. gauge. If you refer to our N. sch. 2780. (size V.) you will see the new moved… | ||
| Scan047 | Repair method for engine main bearings involving liners and bushes. | ||
| View original record | E. } FROM R. RG.} (At Le Canadel.) HS.} R2/M21.1.29. REC'D AT WW. 26.1.29. C. to BJ. WCR. SG. DY. ENGINES - MAIN BEARINGS. X3992 / X3866 Referring to liners, suppose one used standard, say exactly one… | ||
| Scan048 | Secret memo correcting a clerical error regarding the strength percentage of SS. Shock Dampers. | ||
| View original record | ORIGINAL DY. } FROM DA. HS. } SECRET. DA2/M22.1.29. SS. SHOCK DAMPERS. X7520 Referring to our DA2/M10129, in the 1st. para. there is a clerical error. The 15% stronger there spoken of should be 35%… | ||
| Scan049 | Secret memo regarding the exhaust system, confirming receipt of clarifying information. | ||
| View original record | ORIGINAL HS. FROM DA. SECRET. DA1/M22.1.29. SS. EXHAUST SYSTEM. +7230 With reference to our DA2/M19.1.29., we have now got R1/M16.1.29. and R1/M17.1.29., which gives us all the information we are… | ||
| Scan050 | Proposed scheme to reduce the height of steering wheel controls. | ||
| View original record | BY. FROM DA. C. to HS. SECRET DA3/M22.1.29. SS. CONTROLS ON TOP OF X740 (handwritten, struck through) X7430 (handwritten) STEERING WHEEL. We send herewith N. scheme 2809. shewing the proposed… | ||
| Scan051 | Secret memo discussing camshaft drive options for a left-hand drive chassis for the USA. | ||
| View original record | FROM R. (At Le Canadel.) SECRET. R2/M23.1.29. REC'D AT WW. 28.1.29. -E.B.) -DY.) HS.) C. to BJ. WOR. SG. SS. CHASSIS - LEFTHANDING FOR USA. X7772 There is still another possibility and that is to… | ||
| Scan052 | Suggestion for a centralised oiling system for car spring lubrication and the possibility of patenting the idea. | ||
| View original record | DA. } FROM R. HS. } (At Le Canadel.) BY. } SECRET R3/M23.1.29. REC'D AT WW. 28.1.29. ORIGINAL C. to BJ. WOR- SG. F- CARS - SPRING (ROAD) LUBRICATION. X7410 X5410 X3806 Mr. Day gives us a suggestion… | ||
| Scan053 | Lowering steering column controls and standardizing larger steering wheels. | ||
| View original record | DA. } FROM R. HS. } (At Le Canadel.) BY. } SECRET. R4/M23.1.29. REC'D AT WW. 28.1.29. ORIGINAL C. to BJ. WOR B. SG. C CARS - STEERING COLUMN CONTROL. x7430 x5430 7240 5240 It will be remembered that… | ||
| Scan054 | Loose water pump gland nut on the SS model and proposing a design modification. | ||
| View original record | R. FROM E. C. to BJ. " HS. " BY. SECRET ORIGINAL E1/M23.1.29. X7150 SS. WATER PUMP GLAND NUT One of the minor troubles in connection with the SS. is that the water pump gland nut comes loose, due it… | ||
| Scan055 | Modifications to the Dynamo Drive and Air Pump, including lubrication and sizing. | ||
| View original record | A. FROM E. C. to BJ. [strikethrough] " HS. " BY. [strikethrough] ORIGINAL. SECRET. E2/M23.1.29. SS. DYNAMO DRIVE, & AIR PUMP. X7100 [strikethrough] X7510 We attach herewith a blueprint of LeC. 2631.,… | ||
| Scan056 | Secret memorandum discussing 'SS' car and aero engine mounting designs. | ||
| View original record | E. RG. (Struck through) FROM R. SECRET. R1/M23.1.29. HS. BY. (Struck through) (At Le Canadel.) REC'D AT WW. 28.1.29. C. to BJ. WOR. SG. (Struck through) PN. GWB. (Struck through) Mr. CLAREMONT (Struck… | ||
| Scan057 | Bodywork details including screens, wipers, horns, and coachwork fittings. | ||
| View original record | FROM DA/EV. SECRET. C. to BJ. WCR (Struck through) SG. LHE (Struck through) HS. BY. C. CX. re. BODYWORK ETC. Handwritten: X7830, X5830 (Struck through), X., X5550 (Struck through), X4478 A single… | ||
| Scan058 | Oil pressure drop issues in the lower half crankchamber after heavy braking and proposed solutions. | ||
| View original record | FROM E. C. to BJ. " HS. " BY. SECRET. SS. LOWER HALF CRANKCHAMBER. X7000 [handwritten, crossed out] Y7010 [handwritten] It is complained, and has been demonstrated to us, that after heavy braking the… | ||
| Scan059 | Proposal to incorporate drip plug lubrication into the starter motor dashpot scheme. | ||
| View original record | ORIGINAL. SECRET. FROM E. E3/M24.1.29. C. to BY. HS. BY EFC SS. STARTER MOTOR DASHPOT. X7655 Please find herewith print of LeC.2647., shewing a proposal for incorporating drip plug lubrication in the… | ||
| Scan060 | Secret memo providing instructions on design schemes for an SS exhaust system, comparing alternatives. | ||
| View original record | ORIGINAL SECRET. DA4/M25.1.29. FROM DA. C. to HS. SS. EXHAUST SYSTEM. X7230 We send herewith N. scheme 2807., shewing the plain parallel sliding joint on the front expansion box, and also on the… | ||
| Scan061 | Design and weight of car doors on a Mulliner-Weyman body. | ||
| View original record | DA/EV. } FROM R. HS. } (At Le Canadel.) E. } R1/M26.1.29. REC'D AT WW. 1.2.29. C. to SG. WOR. C. PN. LHS. CWB. re. DA/EV/23.1.29. Mr. MINCHIN'S MULLINER-WEYMAN. X4117 X8830 ORIGINAL The doors are thin… | ||
| Scan062 | Blueprint for a press button starter switch. | ||
| View original record | ORIGINAL BY. FROM E. SECRET. E2/M26.1.29. C. to BJ. HS. SS. PRESS BUTTON STARTER SWITCH. X7653 We send you herewith blueprint of LeC.2641., shewing the above. E. | ||
| Scan063 | Sending prints for SS engine mounting components. | ||
| View original record | BY. FROM E. SECRET. E1/M26.1.29. C. to BJ. HS. SS. ENGINE MOUNTING. V7005 We send you herewith prints of LeCs. 2649. and 2650. shewing respectively Strip Rubber Rear Engine Arms, and Strip Rubber… | ||
| Scan064 | Design considerations for a shorter, lefthand American chassis, focusing on wheelbase and body dimensions. | ||
| View original record | SG. FROM R. C. to DA. HS. WOR. E. SECRET. ORIGINAL re. AMERICAN CHASSIS. LEFTHAND & SHORTER. R1/M26.1.29. REC'D AT WW. 29.1.29. X7772 Naturally if America does not need the body space we should make… | ||
| Scan065 | SS Chassis flexible coupling and the potential use of a metal universal joint. | ||
| View original record | HS. E. } FROM R. (At Le Canadel.) SECRET R1/M27.1.29. REC'D AT WW. 30.1.29. C. to SG. WCR. PN. OWB. SS. CHASSIS FLEXIBLE COUPLING. X.7305 The increased power of the engine makes it more severe on this… | ||
| Scan066 | Research work and development strategy for Mr. Ricardo's compression ignition engines. | ||
| View original record | RG. } FROM R. E. } (At Le Canadel.) HS. } C. to BJ. WGR. SG. F. ORIGINAL R2/M27.1.29. REC'D AT WW. 30.1.29. re. RESEARCH WORK. Mr. RICARDO. COMPRESSION IGNITION ENGINES. X4446 My impression is that… | ||
| Scan067 | Dynamo charging current issues and potential armature modifications. | ||
| View original record | EFC. HS. } E. DA. BY. } FROM R. (At Le Canadel) SECRET. R3/M27.1.29. REC'D AT WW. 30.1.29. c.c. to SG. WOR. PN. CWB. SS. ON G.4. ELECTRICAL EQUIPMENT. x.7660 x 8664 x5653 DYNAMOS. It is understood… | ||
| Scan068 | Planned improvements and trials for the SS and 20HP G.4 models. | ||
| View original record | HS. BY. } FROM R. E. DA. } (At Le Canadel.) SECRET. R4/M27.1.29. REC'D AT WW. 30.1.29. ORIGINAL C. to BJ. WOR SG. SS. AND 20HP. G.4. X7941 X7005 X5840 X5005 X7770 It is understood that the SS. will be… | ||
| Scan069 | Investigation into the angle of servo cams and lever lengths for SS brake gear. | ||
| View original record | HS. FROM DA. ORIGINAL SECRET SS. BRAKE GEAR. X7420 47370 DA1/M27.1.29. We investigated the question of the angle of the servo cams, length of lever, etc. on the SS. servo, and found that to obtain the… | ||
| Scan070 | List of drawings being sent which completes the instructions for an SS. Chassis. | ||
| View original record | BY FROM E. Copy to BJ. HS. ORIGINAL SECRET E2/M27.1.29. SS. CHASSIS. X4663 X7770 We send you herewith prints of the following drawings, which completes all the instructions mentioned in E1/M19.1.29.… | ||
| Scan071 | Accessibility of the starter motor pocket and concluding the current design provides maximum accessibility. | ||
| View original record | W. HS. FROM E. Copy to ~~BY.~~ EFC. ~~DA.~~ SECRET ORIGINAL SS. UNDERSHIELDS. STARTER MOTOR POCKET. E2/M28.1.29. 2 X7625B X.7290 Referring to the above point on our list E1/M19.1.29., it was suggested… | ||
| Scan072 | Redesign of an accessory distribution board to include an earth terminal. | ||
| View original record | FROM E. C. to BJ. " HS. " RM. " EFC. SECRET ORIGINAL ACCESSORY DISTRIBUTION BOARD WITH EARTH TERMINAL. Owing to the difficulty of obtaining single pole body light fittings etc. and also the danger of… | ||
| Scan073 | Secret memo discussing the challenges of SS. engine mounting, particularly the front feet and shock damper proximity. | ||
| View original record | FROM E. SECRET. E6/M28.1.29. Copy to B.J. HS. RY. SS. ENGINE MOUNTING. X7005 We send herewith blueprint of LeC.2650. shewing the front engine feet for the above. Most of the remarks made in connection… | ||
| Scan074 | Modifications for a luggage grid and side wheel carrier on an existing car. | ||
| View original record | BY. FROM DA/EV. ORIGINAL SECRET DA/EV1/M28.1.29. C. to BJ. SS. LUGGAGE GRID HS. & SIDE WHEEL CARRIER. X7600 +7400 Herewith we send N. sch. 2811., shewing the luggage grid in use with a single wheel at… | ||
| Scan075 | New proposal for the location of the SS. valve tappet guide. | ||
| View original record | ORIGINAL [stamped] SECRET. E4/M28.1.29. BY, [crossed out] FROM E. Copy to HS. SS. VALVE TAPPET GUIDE LOCATION. X7060 [handwritten and crossed out] Referring to LeC. 2646. of which we have sent you a… | ||
| Scan076 | Change from cast iron to a steel pipe design for an exhaust manifold. | ||
| View original record | FROM E. C. to HS. SECRET. SS. EXHAUST MANIFOLD. X7230 From R's recent memos, you will see that he does not think cast iron suitable. We believe he means this as applied to the existing design of… | ||
| Scan077 | Design and mounting of rear engine feet for an SS model. | ||
| View original record | R. FROM E. Copy to BJ. " HS. " BY. SECRET. ORIGINAL SS. ENGINE MOUNTING. X7005 X7380 We send you herewith print of LeC. 2649. shewing the rear engine feet for the above. These feet are mounted on… | ||
| Scan078 | Redesign of an accessory distribution board to include an earth terminal. | ||
| View original record | FROM E. C. to HS. BY. EPG. SECRET. E3/M28.1.29. X7741 ? ACCESSORY DISTRIBUTION BOARD WITH EARTH TERMINAL. Owing to the difficulty of obtaining single pole body light fittings etc. and also the danger… | ||
| Scan079 | Problems and potential improvements for various car clocks, including A.T. and Watford models. | ||
| View original record | HS. } FROM R. DA/EV. } (At Le Canadel.) SG. } C to BL. WOR E. BY G. R5/M28.1.29. CLOCKS. X4662 Mr. Minchin's A.T. clock worried him quite a lot. We found the trouble was that after having stopped by… | ||
| Scan080 | Proposed design changes to an SS. Exhaust Manifold, including pipe diameter, material, and construction method. | ||
| View original record | R. FROM E. SECRET. E3/M29.1.29. Copy to BJ. " HS. " DY. SS. EXHAUST MANIFOLD. X7230 X7050 Blueprint LeC.7657 attached shews the above made up of 2.25 out dia. pipe instead of the present 2", and… | ||
| Scan081 | Design and completion of a press button starter switch, referencing blueprint LeC.2641. | ||
| View original record | R. FROM E. Copy to HJ. " HS. " BY. " EFC. ORIGINAL SECRET E4/M29.1.29. SS. PRESS BUTTON STARTER SWITCH. X7655 Please find herewith blueprint of LeC.2641., shewing the above. This switch has been… | ||
| Scan082 | Two small alterations to the throttle governor control system. | ||
| View original record | -R: FROM E. SECRET. Copy to BJ. " HS. SS. THROTTLE GOVERNOR CONTROL. X7140 Blueprint LeC. 2653. herewith shews two small alterations to the above, one being to the range of the control which we have… | ||
| Scan083 | Proposed improvements to the lubrication system of the SS front axle control damper. | ||
| View original record | FROM DA. Copy to HS. SECRET. ORIGINAL. DA4/M29.1.29. X7420 X7520 SS. FRONT AXLE CONTROL DAMPER. Herewith we send N. sch. 2814, shewing the proposed improved lubrication for the ball end. Our… | ||
| Scan084 | Adapting a front spring experiment for the rear spring front anchorage, questioning a design difference. | ||
| View original record | |||
| Scan085 | Secret memo regarding an oil leakage issue observed on SS. Camshaft dowel screws and a proposed solution. | ||
| View original record | FROM E. SECRET. E8/M29.1.29. Copy to HS. SS. CAMSHAFT DOWEL SCREW. X7090 Blueprint LeC. 2654. has been made in answer to a report that some oil leakage has been observed from these screws. All… | ||
| Scan086 | Proposal for providing a means of end adjustment for lining up timing gears in the wheelcase. | ||
| View original record | FROM E. Copy to BY. " HS. " DY. SECRET. ORIGINAL E5/M29.1.29. X 7170 (handwritten) X411 (handwritten) SS. WHEELCASE & GEARS. PROVISION FOR LINING UP GEARS. We are asked to provide some means of end… | ||
| Scan087 | Secret memorandum including a telegram and a sketch outlining suggestions for a simpler and more practical SS exhaust pipe and silencer design. | ||
| View original record | DA. BY. HS. } FROM R. (At LeCanadel.) SECRET ORIGINAL R1/M30.1.29. REC'D AT WW. 2.2.29. Copy to WCR. SG. SS. EXHAUST PIPES. X7230 COPY OF TELEGRAM SENT. " ROYCE. CHICHESTER. ANGLETERRE. " DAY. EXHAUST… | ||
| Scan088 | Design of a car's exhaust system, including pipe routing, silencer placement, and managing fumes. | ||
| View original record | (2) The vertical pipe from the engine at 2.75" bore dia. or 2.5" should be able to carry the weight of the front silencer even when hot providing that we stay it (the pipe or the front box)… | ||
| Scan089 | With hand-drawn sketches suggesting designs for an exhaust pipe joint. | ||
| View original record | (3) I have generally suggested a long joint, a free fit, and circular grooves. I thought we used some of these very successfully. They were very hot in the early part of the exhaust. Perhaps we ought… | ||
| Scan090 | Insufficient bearing surface on front springs and wear on pendulum lever ball ends. | ||
| View original record | HS. FROM DA. Copy to BX [struck through] SECRET. 'SS'. X7770 X7410 X7430 [X3806 struck through] ORIGINAL DA1/M30.1.29. With reference to HS2/LG25129., and HS/RM1/LG25129., we are dealing with the… | ||
| Scan091 | Suggestions for protecting overflow pipes and problems with soldered joints on petrol and lubrication pipes. | ||
| View original record | (2) With reference to ITEM 1. we are sending you immediately some suggestions for protecting these overflow pipes from mud. X3806 With reference to the items in HS2/LG25129.. the petrol pipes and… | ||
| Scan092 | Simplification of the petrol supply and reserve system using the autovac tank and a needle valve. | ||
| View original record | HS. E.Y. ) FROM R. (struck through) DA. EV. (At Le Canadel.) (struck through) C to SQ. WOR. C. (struck through) PN. CWD (struck through) SECRET. ORIGINAL. R2/M30.1.29. REC'D AT WW. 4.2.29. SS. PETROL… | ||
| Scan093 | Use of liners and bushes for main bearings, referencing blueprints LeC. 2655 and 2656. | ||
| View original record | FROM E. C. to BJ. HS. RG BY MAIN BEARINGS. X399Z Referring to your proposal to use liners between caps and crankcase which do not enter the bushes we think this would be well worth having. Blueprint… | ||
| Scan094 | Secret memo recommending the standardisation of an electrical screenwiper drive, replacing the mechanical version. | ||
| View original record | ORIGINAL DA (crossed out) BY (crossed out) HS FROM R. (At Le Canadel.) SECRET. R2/M30.1.29. REC'D AT WW. 2.2.29. C. to SG. WGR. (crossed out) SS. GEARBOX. SCREENWIPER DRIVE. X7310 (handwritten) X4478… | ||
| Scan095 | Poor condition of Colonel Fell's car and suggesting a more suitable vehicle with better features like four-wheel brakes. | ||
| View original record | HS. } FROM R. (At Le Canadel.) ORIGINAL R1/M30.1.29. REC'D AT WW. 4. 2.29. COL. FELL'S CAR. X1775 X4118 X5770 The above is important from many points of view. He was using a very old 3 speed 20HP.… | ||
| Scan096 | With diagrams discussing design options for an SS exhaust system and flexible engine mounting. | ||
| View original record | DA. E. } FROM R. HS. BY. } SECRET. ORIGINAL. R3/M30.1.29. REC'D AT WW. 4.2.29. Copy to SG. WOR. SS. EXHAUST ETC. X7230 X7005 In France we are waiting for two things - the above and the engine mounting… | ||
| Scan097 | Typed communication discussing design suggestions for a crankchamber. | ||
| View original record | (2) It would appear more convenient to stay the front box from the lower half of the crankchamber. You have shewn me what you would do. I have replied that it is not simple and practical enough. I… | ||
| Scan098 | Design improvements for a sequence starter by rounding the corners. | ||
| View original record | EFC. } FROM R. HS } (At Le Canadel.) F } C. to S.S. WOR. SECRET. ORIGINAL. SS. SEQUENCE STARTER. R4/M30.1.29. REC'D AT WW. 4.2.29. x7625 / x4562. R. I cannot help thinking we are doing all manner of… | ||
| Scan099 | Proposed silencer for an air pump connection on the carburetter air inlet, referencing blueprint LeC. 2659. | ||
| View original record | ORIGINAL R. FROM E. SECRET E2/M31.1.29. Copy to BJ " HS " BY SS. AIR PUMP SILENCER. Y7080 Blueprint LeC. 2659. herewith shews a proposed silencer for air pump connection on carburetter air inlet. We… | ||
| Scan100 | Telegram confirmation approving engine mounting, reduced control height, and further testing of a Klaxon switch. | ||
| View original record | ORIGINAL CONFIRMATION OF TELEGRAM. Copy to BJ. " WOR. " BY. " HS. SENT BY R. TO WW., AND RETRANSMITTED TO DERBY 1. 2. 29. ENGINE MOUNTING AND REDUCED HEIGHT OF CONTROLS APPROVED PUSH FORWARD TEST ALSO… | ||
| Scan101 | Investigation into offsetting tappets for right and left-handed engines and its effects on the valve gear. | ||
| View original record | FROM E. Copy to BJ. " HS. " BY. SECRET. SS. VALVE GEAR & LEFT HANDED ENGINE. ORIGINAL E1/M1.2.29. X7060 X7090 X7772 Regarding further the question of right and left handed engines BY. has made a… | ||
| Scan102 | Standardisation of double wiring and single central contact fittings for accessory distribution boards. | ||
| View original record | HS } FROM R. E. } (At Le Canadel.) BY. } [STAMP] ORIGINAL [STAMP] SECRET 2 R2/M1.2.29. REC'D AT WW. 5.2.29. Copy to SG. [Struck through] WOH. [Struck through] ELECTRICAL EQUIPMENT ETC. X7741 X7560… | ||
| Scan103 | Carburetter design improvements and comparing existing and new schemes. | ||
| View original record | HS.) FROM R. (At Le Canadel.) Copy to SG. SECRET R4/M1.2.29. REC'D AT WW. 5.2.29. SS. AND G.4 re. CARBURATION. X7080 19-EX. has made me think that our old RR. carburetter is better than I gave it… | ||
| Scan104 | Improvements to the SS and G.4 induction system heating, and alternatives to fitting a thermostat. | ||
| View original record | HS. H. (crossed out) FROM R. DA. DY. (crossed out) (At Le Canadel.) SECRET REC'D AT WW. 5.2.29. Copy to SS. WCR. (crossed out) PN. CWB. (crossed out) SS. AND G.4 INDUCTION SYSTEM. X7070 (crossed out)… | ||
| Scan105 | Options for SS engine mounting, including rubber specifications, frame stiffness, and placement. | ||
| View original record | E. DA. ) FROM R. HS.BY. ) (At Le Canadel.) SECRET. R5/M1.2.29. REC'D AT WW.5.2.29. Copy to SG WOR SS. ENGINE MOUNTING. X7005 X7380 X235 We seem limited because of the front hydraulic dampers. I… | ||
| Scan106 | Subframe design and marketability of an open touring body. | ||
| View original record | DA/LV. FROM R. HS. (At Le Canadel.) BY. SECRET. ORIGINAL R1/M1.2.29. REC'D AT WW. 5.2.29. Copy to - SG. " " WOR. " " E. SS. CHASSIS. OPEN TOURING BODY. X7830 X7380 Be sure you do not have any more… | ||
| Scan107 | Secret memo listing drawings for an 'SS' valve cover, inlet cam form, and valve gear. | ||
| View original record | BY. FROM E. SECRET. ORIGINAL E2/M2.2.29. C. to BJ. HS. 'SS'. X7060 We send you herewith the following drawings: LeC. 2651. SS. Valve Cover. LeC. 2661. SS. Inlet Cam Form. LeC. 2662. SS. Valve Gear.… | ||
| Scan108 | Issues with oil leaks and fastenings on the SS Valve Rocker Cover, proposing design modifications. | ||
| View original record | SECRET ORIGINAL FROM E. C. to HS. BT. SS. VALVE ROCKER COVER. X7050 X7090 We have obtained from Derby a print of what is being tested for the above, and this print (Sch.1101.) is attached. Arising out… | ||
| Scan109 | Brake performance issues and an oversight regarding water guards on axles. | ||
| View original record | HS. } FROM R. DA. } (At Le Canadel.) DY. } SECRET ORIGINAL R1/M3.2.29. REC'D AT WW. 7.2.29. Copy to SC. " " WOR. " " E. SS. BRAKES. X7420 Mr. Hancock says that the back brakes appear to be doing less… | ||
| Scan110 | Impracticality of Bijur valves and restrictors for central oiling and suggesting an alternative. | ||
| View original record | DA. } FROM R. HS. } (At Le Canadel.) BY. } SECRET. ORIGINAL R2/M3.2.29. REC'D AT WW. 7.2.29. Copy to SG. " WOR. " E. SS. AND G.4. CENTRAL OILING. X3806 These little Bijur valves and restrictors do not… | ||
| Scan111 | Internal memorandum discussing design alterations for SS valve gear and desaxe tappets. | ||
| View original record | HS. } FROM R. E. } Copy to SG. " " SECRET ORIGINAL REC'D AT WW. 7.2.29. R5/M3.2.29. SS. VALVE GEAR. DESAXE TAPPETS. X7060 X1157 Since the contact runs out to meet the cam is there any need to offset,… | ||
| Scan112 | Suitability of a spring washer versus a sheet metal lock for camshaft bearings. | ||
| View original record | E. HS. BY. FROM R. (At Le Canadel.) SECRET. ORIGINAL R3/M3.2.29. REC'D AT WW. 7.2.29. Copy to SG. WOR. SS. CAMSHAFT BEARINGS. re. LeC. 2654. x7090 Possibly the spring washer is not a suitable lock… | ||
| Scan113 | Secret memo proposing a new design for a vacuum pump oil pipe connection due to issues with the existing tee joint. | ||
| View original record | R. FROM E. SECRET. E1/M4.2.29. Copy to SS. (struck out) " HS. " BY. (struck out) VACUUM PUMP OIL PIPE CONNECTION. x7510 (handwritten, struck out) x7190 (handwritten, struck out) Blueprint LeC. 2660.… | ||
| Scan114 | The excessive weight and thickness of coachwork doors, proposing an investigation with coachbuilders to find a solution. | ||
| View original record | R. FROM DA/EV. DA/EV2/M5.2.29. Copy to SS. HS. [struck through] OK. C. [struck through] re. DOORS OF COACHWORK. X7830 X5830 We agree that doors are heavy and thick. We propose thoroughly investigating… | ||
| Scan115 | Agreed modifications to the subframes of SS and India bodies, including diagrams. | ||
| View original record | BY. FROM DA/EV. Copy to - HS. re. SUBFRAMES. X5380 X7380 As a result of our experiences with the mounting of SS. and India bodies we agree to the following modifications to the subframes of both… | ||
| Scan116 | Agreements on chassis, subframe, and gearbox modifications, page 2. | ||
| View original record | (2) We also agree to the bracket remaining as at present, and the effect of (2) being to make the packing washer .400" thicker. We suggest that this packing be made up of plate washers about .050"… | ||
| Scan117 | Design, supply, and features of a framed instrument panel. | ||
| View original record | ORIGINAL FROM DA/EV. C. to HS. DA/EV3/M5.2.29. re. FRAMED PATCH OF INSTRUMENTS. X7530 Y5530 X4038 Thank you for your SG17/M31.12.28. & SG19/M29.1.29., re. the above. We were aware that a sample… | ||
| Scan118 | Proposing a chassis engine carburettor design using two butterfly valves in series. | ||
| View original record | HS/ACL. FROM E. Copy to SS. BY. PROPOSED CHASSIS ENGINE CARBURETTER X7080 Referring to your memo. HS/ACL/LG28.1.29., and R4/M1.2.29., I suggested about two years ago the use of two butterfly valves in… | ||
| Scan119 | Suggestion to prevent the 'SS' servo plates from seizing. | ||
| View original record | BY: FROM DA. SECRET. ORIGINAL DA2/M6.2.29. Copy to HS. 'SS' SERVO. X7370 We send herewith N. sch. 2816. shewing a suggestion for obviating the difficulty of the pins connecting the two driven plates… | ||
| Scan120 | Improved scheme for the SS Front Shock Damper, specifically regarding ball end lubrication. | ||
| View original record | FROM DA. Copy to HS. SECRET. ORIGINAL DA1/M6.2.29. SS. FRONT SHOCK DAMPER. X7520 Since we sent you N. sch. 2814. we have given the question of the ball end lubrication further consideration, and we… | ||
| Scan121 | Design of a rear wheel carrier and a new single filter for the 16-G.4 model. | ||
| View original record | BY: FROM DA/EV Copy to -SG- [strikethrough] " -WOR- [strikethrough] " HS. SECRET. ORIGINAL [stamp] DA/EV2/M6.2.29. INDIA REAR WHEEL CARRIER. X7600 16-G.4. We send herewith N. sch. 2818. shewing the… | ||
| Scan122 | Simpler and quieter design for an SS chassis engine valve rocker cover. | ||
| View original record | E. (Struck through) } FROM R. HS. } (At Le Canadel.) BY. (Struck through) } SECRET. G. (Struck through) to SG. WGR. SS. CHASSIS ENGINE VALVE ROCKER COVER. (Handwritten and struck through) x7090… | ||
| Scan123 | Different schemes for valve rocker lubrication. | ||
| View original record | R. FROM E. (R. is crossed out) x7060 x7090 (crossed out) SECRET. ORIGINAL E1/M6.2.29. C. to SS. HS. BY. (BY is crossed out) SS. VALVE ROCKER LUBRICATION. Replied 15/2/29 (handwritten) Regarding the… | ||
| Scan124 | Road test report and review of car specimen 18-EX after 10,000 miles of use. | ||
| View original record | HS. E. FROM R. DA. (At Le Canadel.) C. to SG. WCR. C BY. CWD. PN. SECRET ORIG R2/M6.2.29. REC'D AT WW. 9.2.29. SS. SPECIMEN 18-EX. Handwritten notes over text: X7770 X7800 X7600 X7830 X7005 This is… | ||
| Scan125 | Outlining technical updates and suggestions for the 'SS' chassis. | ||
| View original record | HS. FROM DA. Copy to WOR. [crossed out] " " RY. [crossed out] SECRET 'SS' CHASSIS. X3S06 X7420 X7770 With reference to HS/RM6/LG31129:- (1) We have sent you N. sch. 2817 an arrangement for using the… | ||
| Scan126 | Secret memorandum discussing issues with rear axle oil drain holes being choked with mud and proposing design solutions. | ||
| View original record | PY. FROM DA. (PY is struck through) SECRET ORIGIN DAL/M7.2.29. Copy to SG. HS. (SG is struck through) SS. REAR AXLE - OIL DRAIN HOLES. X7350 With reference to the trouble of the oil drain holes both… | ||
| Scan127 | Loss of oil pressure after braking and proposing modifications to the crankcase sump. | ||
| View original record | R. FROM E. C. to SS. HS. BY. ORIGINAL E1/M7.2.29. X7010 X7000 X7090 X7420 LOSS OF OIL PRESSURE AFTER BRAKING. We suggest that an open bottom half crankcase should be taken, charged with oil, and be… | ||
| Scan128 | Comparison of engine oil suction systems with diagrams for the SS and Phantom chassis. | ||
| View original record | (2) [Handwritten Annotation:] Derby yours [Typed Text:] From the other results we give we think the communication holes must be about right but an open bottom half test would confirm this. The Arrol… | ||
| Scan129 | Report comparing oil pump and strainer designs between SS and Phantom chassis, proposing a new scheme. | ||
| View original record | (3) FIG 3 INDIA There is one important difference to be observed between SS. and the other two chassis. On the SS. the pump proceeds to evacuate all the air from the strainer before touching a drop of… | ||
| Scan130 | Use of sheet metal lock washers for camshaft bearings and substituting soft aluminium washers to prevent oil leaks. | ||
| View original record | R. FROM E. ORIGINAL E2/M8.2.29. Copy to SS. " HS. " BY. re. CAMSHAFT BEARINGS - LeC.2654. X7090 We like your suggestion re. using a sheet metal lock washer in place of spring washer, and agree that it… | ||
| Scan131 | Recommendation for the standardisation of Staybrite steel in the exhaust system for the SS chassis. | ||
| View original record | R. DA. ) FROM R. DY. HS. ) (At Le Canadel.) ORIGINAL SECRET. R1/M8.2.29. REC'D AT WW. 11.2.29. SS. CHASSIS. STAYBRITE STEEL IN EXHAUST SYSTEM. X7230 X4111 Where-ever it is desirable and necessary I… | ||
| Scan132 | Secret memo discussing modifications for SS rear brake camshafts, adapting them to the EAC. 14. scheme. | ||
| View original record | BY. FROM DA. [BY. is struck through] Copy to SS. HS. SECRET. DA2/M9.2.29. SS. REAR BRAKE CAMSHAFTS. [Handwritten: X7090 / X7360.] Herewith we send N. sch. 2821. shewing the chauffuer's adjustment ends… | ||
| Scan133 | Different schemes and alternatives for an SS exhaust system design. | ||
| View original record | DY. FROM DA. Copy to SG HS. ORIGINAL SECRET DA1/M9.2.29. X7230 SS. EXHAUST SYSTEM. Herewith we send N. schemes 2823/4/5. which have been made in accordance with R1/M30.1.29. R3/M30.1.29. and… | ||
| Scan134 | Three schemes for improving the lubrication of the SS valve gear. | ||
| View original record | FROM E. Copy to SC. " HS. " DY. SECRET ORIGINAL SS. VALVE GEAR. X7060 / X7090 With further reference to the lubrication of valve gear, especially under conditions when the car is started off from… | ||
| Scan135 | Modifications to the SS engine oil level indicator to improve its accuracy. | ||
| View original record | HS. FROM E. G. to WCR SECRET. SS. ENGINE OIL LEVEL INDICATOR. X7200 On the original drawing of the above - LeC.2497- there is a note asking for the oil indicator readings to be finally determined by… | ||
| Scan136 | Outlining strategies and suggestions for reducing the thickness of car doors to increase interior seat width. | ||
| View original record | FROM DA/EV. C. to HS. ORIGINAL DA/EV1/M12.2.29. DOORS. X7830 / X393 We are making a continued offensive against thick doors. We have demonstrated to Mr. Munro of Barker's that their standard doors are… | ||
| Scan137 | Secret memorandum proposing a new, simpler, and lighter design for a serrated coupling to replace fabric couplings. | ||
| View original record | HS. ) FROM R. DA. ) (At Le Canadel.) BY. ) C. to SG. WOR. SECRET. SS. - SERRATED INSTEAD OF FABRIC COUPLING. N. SCHEME 2812. ORIGINAL R3/M12.2.29. REC'D AT WW. 15.2.29. X7305 Fabric couplings are not… | ||
| Scan138 | Modification to the float lever ratio to correct the oil indicator reading. | ||
| View original record | BY. FROM E. SECRET ORIGINAL E5/M12.2.29. Copy to SG. WOR. HS. SS. OIL LEVEL INDICATOR. X 7200 We send you herewith LeC. 2672., shewing slight modification to the float lever ratio to correct oil… | ||
| Scan139 | Accuracy of jigging dowel pins for the SS. valve tappet guide location. | ||
| View original record | BY. FROM E. Copy to HS. SECRET. SS. VALVE TAPPET GUIDE LOCATION. ORIGINAL E4/M12.2.29. X7060 With further reference to our memo. E4/M28129., we should be glad to know if the question of jigging the… | ||
| Scan140 | Flexibility of trunnion bearings for SS universal joints. | ||
| View original record | HS. FROM DA. [Strikethrough: C. to WOR.] [Strikethrough: DY.] [Strikethrough: E.] SECRET. ORIGINAL DA1/M12.2.29. SS. UNIVERSAL JOINTS. X.7340 With reference to HS3/LG8229., we notice that the trunnion… | ||
| Scan141 | Carburetion and cold-starting tests on an SS chassis. | ||
| View original record | HS. } FROM R. E. } (At Le Canadel.) SECRET. R2/M12.2.29. REC'D AT WW. 15.2.29. Copy to Mr. Fuller OY. " SG. DY. C. " PN. OWB. SS. CHASSIS. CARBURATION AND STARTING FROM COLD. X7080 X7070 X3603 I am… | ||
| Scan142 | Comparison between two oil filter designs, LeC. 2667 and LeC. 2668, with a recommendation for the latter. | ||
| View original record | R. FROM E. SECRET ORIGINAL E6/M12.2.29. C. to SG. HS. BY. SS. OIL FILTER. X7190 We send herewith prints of LeCs. 2667/8. dealing with the above. These are arranged in principle on the lines of the… | ||
| Scan143 | Design of an SS instrument board, including gauge samples and dial colour alternatives. | ||
| View original record | [STAMP] ORIGINAL [UNDERLINED] SECRET -39. FROM DA/EV. C. to [Strikethrough] W.O.H. D.I. C.C. ROY. H.S. [/Strikethrough] [UNDERLINED] SS. INSTRUMENT BOARD. [/UNDERLINED] [Handwritten] X7530… | ||
| Scan144 | New scheme for servo lubrication and a related lever geometry adjustment. | ||
| View original record | BY. FROM DA. Copy to SG. HS. SECRET. ORIGINAL DA2/M14.2.29. SS. SERVO LUBRICATION. X7370 X3806 Herewith we send N. scheme 2827. shewing a suggestion for conveying some of the oil from the servo drip… | ||
| Scan145 | Suggestions for a reserve petrol supply device within the Autovac tank. | ||
| View original record | BY. FROM DA. Copy to - HS. SECRET. SS. PETROL SUPPLY - AUTOVAC. With reference to the proposed reserve contained in the autovac tank, we send herewith N. sch. 2828/9. shewing suggestions for the… | ||
| Scan146 | Coordinating Mr. Elliott's visit to Le Canadel, a 10,000-mile test car, and finishing the engine mounting and exhaust. | ||
| View original record | ORIGINAL ~~R.~~ ) FROM R. ~~BG.~~ ) (At Le Canadel.) HS. ) R5/M15.2.29. REC'D AT WW. 18.2.29. Mr. ELLIOTT'S VISIT TO Le CANADEL. X7770 X3994 X7230 It was thought good if Mr. Elliott came here for a… | ||
| Scan147 | Effect of braking on oil movement and suggestions for modifying the filter and diaphragms. | ||
| View original record | FROM R. (At Le Canadel.) SECRET. REC'D AT WW. 18.2.29. Copy to SS. SS. BRAKING EFFECT ON OIL. X7420 X.7190 18-EX., so one thinks it is not serious because brakes are used very suddenly here. However… | ||
| Scan148 | Responding to a telegram with suggestions for an SS clutch design, referencing scheme 2831 and bearings from Hoffmann and Skefco. | ||
| View original record | ORIGINAL BY. FROM DA. SECRET DA1/M15.2.29. Copy to [strikethrough]SS.[/strikethrough] HS. SS. CLUTCH. [strikethrough]X7300[/strikethrough] [strikethrough]X548[/strikethrough] Y547 We received your… | ||
| Scan149 | Design and specifications for a centralised chassis lubrication dashboard pump. | ||
| View original record | BY. ) FROM DA. HS. ) C. to WOR. E. ORIGINAL DA2/M15.2.29. CENTRALISED CHASSIS LUBRICATION - DASHBOARD PUMP. X3806 With reference to HS1/LG5229., we have prepared a design for a pump of larger capacity… | ||
| Scan150 | Discussion of pump performance issues and proposed modifications to address imperfect filling. | ||
| View original record | (2) So that we presume that it is the quick descent of the piston when the oil is hot, coupled with the imperfect filling, that is causing anxiety; (our information from Mr. Bijur was that 1 min.… | ||
| Scan151 | Design improvements for hydraulic shock dampers, including a diagram of a spring mechanism. | ||
| View original record | HS. ) FROM R. (At Le Canadel.) Copy to WOR. ORIGINAL REC'D AT WW. 18.2.29. HYDRAULIC SHOCK DAMPERS. X235/X7520 I agree to high pressure valve drilled with a one sixteenth hole if thought advisable… | ||
| Scan152 | Requesting oil pressure figures for the SS model during a cold start. | ||
| View original record | ORIGINAL HS. FROM E. SECRET. E1/M15.2.29. Copy to SG. SS. OIL PRESSURES. x7010 x7060 x7000 We should be glad if you would let us know at some convenient time to what figures the various oil pressures,… | ||
| Scan153 | Secret memo discussing seven possible design schemes for a left-hand SS engine, focusing on camshaft and component interchangeability. | ||
| View original record | E. ) FROM R. HS. ) (At Le Canadel.) BY. ) C. to SG. WOR. SECRET. ORIGINAL R1/M15.2.29. REC'D AT WW. 18.2.29. SS. ENGINE. X7722 LEFT HAND. 7090 I was sorry you did not say in your memo. which of the 7… | ||
| Scan154 | Various engine design schemes, weighing factors like size, weight, and parts interchangeability. | ||
| View original record | (2) One other little point is the clearances of the units with the upper half. One supposes this would increase in Sch.3. though making several things more bulky. Naturally one thinks L.H. camshafts… | ||
| Scan155 | Secret document detailing a promising four-point 'India IV' engine mounting scheme with a diagram. | ||
| View original record | R. FROM E. Copy to HG. WOR. HS. BY. ORIGINAL SECRET INDIA IV. ENGINE MOUNTING. X5005 X5000 We have the four point India mounting well in hand to what appears to be a promising scheme to give maximum… | ||
| Scan156 | Recommending Scheme 6 over Scheme 1 for Left Hand Engines, detailing issues with the latter's design. | ||
| View original record | BY. FROM E. Copy to B. " S.C. " W.H.R. " H.S. ORIGINAL SECRET. E2/M16.2.29. re. LEFT HAND ENGINES. X777 Confirming telephone conversation with you re. the above we strongly recommend you to use Sch.… | ||
| Scan157 | Design suggestions for a valve cover, focusing on noise reduction, sealing, and materials. | ||
| View original record | E. HS.) FROM R. BY. ) (At Le Canadel.) C. to SG. WOR. SECRET R1/M16.2.29. REC'D AT WW.19.2.29. SS. COVER OVER VALVES. A7060 I fear my suggestions about the above were not of much help. I was alarmed… | ||
| Scan158 | Approval notes for trunk fixing, petrol tank support, and a large petrol filter on an SS.CHASSIS. | ||
| View original record | DA. ) FROM R. BY. ) (At Le Canadel.) C. to HS. N. SCH. 2819. Trunk fixing and petrol tank support, is approved as shewn. N. SCH. 2820. Large size petrol filter in rear tank, wide opening and well… | ||
| Scan159 | Modifications to SS headlamp brackets for stiffness and commenting on the practicality of stays. | ||
| View original record | BY HS. ) FROM DA. Copy to SG SECRET. ORIGINAL DA1/M18.2.29. SS. HEADLAMP BRACKETS. X7800 With reference to item 6. on HS/RM6/LG 31.1.29., we conclude that the principle flexibility is in the tubes… | ||
| Scan160 | Various designs for spanners to be used on internal hexagon plugs. | ||
| View original record | FROM E. SECRET. E1/M19.2.29. C. to SG. WCR. HS. EV. re. SPANNERING INTERNAL HEXAGON PLUGS. Referring to the attached minutes of a meeting between SG. CWB. and EV. on the SS. chassis, item No.(5), we… | ||
| Scan161 | Technical memorandum discussing the design of an SS oil filter and strainer in the sump, with suggested improvements. | ||
| View original record | R. HS. ) FROM R. (E. in R.E. is struck out) BY. ) (At Le Canadel.) (BY. is struck out) SECRET. ORIGINAL R1/M19.2.29. REC'D AT WW. 23.2.29. C. to SG. DA. (SG. DA. is struck out) SS. OIL FILTER.… | ||
| Scan162 | Design proposals for an oil sump and strainer to manage oil flow back. | ||
| View original record | (2) An idea to save the oil flowing away from the suction opening would be to cast a wall on one side to allow oil to flow back, or similar means. Return passes round the sides or if the sides are… | ||
| Scan163 | Proposed modifications and lubrication for a serrated universal joint and clutch shaft. | ||
| View original record | BY ) FROM DA. HS. ) Copy to SG. SECRET. SERRATED UNIVERSAL JOINT. X7300 X1457 SS. CLUTCH SHAFT. X.7340 Herewith we send N. sch. 2832., on the righthand side of which we have shewn R's proposed… | ||
| Scan164 | Modifications to the design of SS & India spare wheel carriers. | ||
| View original record | HS. FROM DA. SECRET. ORIGINAL. DA4/M19.2.29. SS. & INDIA SPARE WHEEL CARRIERS. X7600 X5600 Replying to HS/AJL1/LG12229., referring to the modifications to N. sch.2760:- (a) We have investigated the… | ||
| Scan165 | Design and construction of exhaust pipes and silencers, including a sketch. | ||
| View original record | [Strikethrough: DA. E.] ) FROM R. HS. [Strikethrough: BY.] ) (At Le Canadel.) [Strikethrough: Copy to SG] ORIGINAL SECRET R2/M19.2.29. REC'D AT WW. 23.2.29. SS. EXHAUST PIPES. N. sch. 2824. X7230 Two… | ||
| Scan166 | The painting process for wings on an open touring body, specifically regarding colour matching Rover Brown cellulose paint. | ||
| View original record | HS/AJL. FROM DA/EV. ORIGINAL SECRET DA/EV4/M19.2.29. Copy to CX/HN OPEN TOURING BODY FOR 23-EX. X7390 X7830 Thank you for HS/AJL2/LG12229. & HS/AJL1/LG6229. The reason we require the wings to be… | ||
| Scan167 | Design, operation, and fixing of a valve in a water circulation system. | ||
| View original record | FROM E. C. to HS. re. VALVE IN WATER CIRCULATION. X7150 Please find herewith blueprint LeC. 2675. shewing a scheme for the above. The valve in this design has been coupled directly to the longitudinal… | ||
| Scan168 | Suggested method for supplying oil to a hypoid pinion thrust bearing in a rear axle. | ||
| View original record | ORIGINAL SECRET FROM DA. C. to HS. SS. REAR AXLE. HYPOID PINION THRUST BEARING. X.7350 [crossed out] X2666 We send herewith N. sch. 2834. shewing a suggested means of supplying oil to the forward race… | ||
| Scan169 | Suggestions for the arrangement of a left-hand SS hand brake compensator. | ||
| View original record | ORIGINAL SECRET FROM DA. Copy to HS. DA5/M21.2.29. LEFT-HAND SS. HAND BRAKE COMPENSATOR. X7772 We send herewith N. sch. 2835. shewing how we suggest the hand brake differential should be arranged. The… | ||
| Scan170 | Revisions to framed instruments, including the K.S. gauge, shutter controls, and a change in frame material. | ||
| View original record | DY. FROM DA. Copy to HS. SECRET SS. FRAMED INSTRUMENTS. X7530 / X4038 Herewith we send N. sch. 2836. shewing the revised framed instruments containing the K.S. gauge and the green lamp. We have… | ||
| Scan171 | Proposal for a new starter motor system using a double reduction gear mechanism. | ||
| View original record | B. RFC.) FROM R. BY. HS. ) (At Le Canadel.) ORIGINAL R1/M21.1.29. REC'D AT WW. 26.1.29. C - to BJ. WGR. SG. Mr CLAREMONT. STARTER MOTOR SYSTEM. x7655 Here is a new modification which may be thought… | ||
| Scan172 | Diagram of a spring-loaded starter pinion engaging with a flywheel gear. | ||
| View original record | (2) About 1 1/2". Flywheel gear. This gear has cork faced spring loaded driving surface with slip if any excessive shock. On colliding with flywheel gear this pinion can slide back until gears mesh. | ||
| Scan173 | Modification to a single petrol tank filter. | ||
| View original record | -DY. FROM DA. SECRET. ORIGINAL. DA4/M12.2.29. Copy to SC. HS. SS. PETROL TANK SINGLE FILTER. X7460 X3701 We send herewith N. sch. 2820. shewing the single filter without a two level device as recently… | ||
| Scan174 | Design and lubrication of a starter motor dashpot, including motor brushes and teeth engagement. | ||
| View original record | FROM R. (At Le Canadel.) REC'D AT WW. 25.2.29. SS. STARTER MOTOR DASHPOT. X7625 The 3 specimens I have seen of the above hardly justifies fitting a dashpot, and when we add the extra for the… | ||
| Scan175 | Starter motor engagement, pinion design, and spring mechanisms. | ||
| View original record | (2) Engaging. disengaging. and the points rounded thus- .250 This seems the most substantial & practical & should be nearly what Mr. Elliott suggested. Regarding the longitudinal spring this should… | ||
| Scan176 | Three functional checks for a device and urging for improvements to ensure its reliability. | ||
| View original record | (3) We should make sure that: (A) The motor stops turning the engine when the press button is freed. This is ensured by the two way press button even if the mechanical interlock is wrongly set as in… | ||
| Scan177 | Simplified method for chassis engine mounting using links or a flexible strap. | ||
| View original record | E. ) FROM R. HS. ) (At Le Canadel.) ORIGINAL SECRET R3/M22.2.29. REC'D AT WW. 25.2.29. C. to SG. WOR. DA. BY. SS. CHASSIS ENGINE MOUNTING. X7005 It is possible that we could simplify this slightly by… | ||
| Scan178 | Design and interchangeability of tappets for the L.H. SS. Engine. | ||
| View original record | SECRET. ORIGINAL. R1/M22.2.29. REC'D AT WW. 25.2.29. FROM R. (At Le Canade) L.H. SS. ENGINE. X7772 (1) I had not remembered that the tappets were not vertical but were inclined already towards the… | ||
| Scan179 | Two-level device for an Autovac system, including a diagram for a fuel tap. | ||
| View original record | FROM R HS. ) (At Le Canadel.) DA/EV.) [Struck out] C. to SG. WOR. [Struck out] BY E.R. [Struck out] R2/M22. 2. 29. REC'D AT WW. 25.2.29. AUTOVAC. X3579 [Struck out] X7510 [Struck out] My two level… | ||
| Scan180 | Design options for a dashboard pump, specifically regarding valve opening and stopping mechanisms. | ||
| View original record | HS. FROM DA. Copy to BY ORIGINAL DA1/M22.2.29. DASHBOARD PUMP. X3806 We thank you for HS/GY2/LG19229. We note that the use of a spring enables the valve to be opened .125. Would you please allow for… | ||
| Scan181 | Secret memorandum discussing Mr. Elliott's investigation into different types of valve springs. | ||
| View original record | E. RG. ) FROM R. HS. BY. ) (At LeCanadel.) SECRET. R2/M23.2.29. REC'D AT WW. 28.2.29. C. to BG. WCR. VALVE SPRINGS. X296 X2983 Mr. Elliott's investigation is excellent and should be carried on as long… | ||
| Scan182 | Preference for a three-lamp headlamp system over other options. | ||
| View original record | HS. DA/EV. ) FROM R. ) (At Le Canadel.) ORIGINAL R5/M23.2.29. REC'D AT WW. 28.2.29. C. to SG. C. CX. HEADLAMPS. X7800 X4555 HS. weighs up the headlight situation in his memo. of 28.1.29. I agree with… | ||
| Scan183 | From 'R.' expressing a preference for smaller wheels (18-EX) and recalling past struggles with 20HP wheels. | ||
| View original record | HS. FROM R. (At Le Canadel.) ORIGINAL SECRET. R7/M23.2.29. REC'D AT WW. 28.2.29. C to SG. DA E. BY SS. WHEELS. X7810 X5810 X3825 I definitely prefer the smaller wheels as 18-EX. There is a definite… | ||
| Scan184 | Secret memorandum regarding a complaint about the too rapid opening of radiator shutters and a proposed modification. | ||
| View original record | ORIGINAL BY. (crossed out) FROM DA. SECRET DA1/M23.2.29. C. to SG. (crossed out) HS. RADIATOR SHUTTERS. X3499 X7250 (crossed out) With reference to the complaint of the too rapid opening of the… | ||
| Scan185 | Design considerations for four-seater all-weather car bodies, covering width, doors, riding comfort, lighting, horns, and colour schemes. | ||
| View original record | DA/EV. FROM R. HS. (At Le Canadel.) SECRET. ORIGINAL C. to SG. WGR. C. CX R1/M23.2.29. REC'D AT WW. 26.2.29. G.4. - CLOSE COUPLED FOUR SEATER ALLWEATHER FOR R's USE. X5770 X5800 X5830 It is possible… | ||
| Scan186 | Suggestion for making tappets truly vertical in an engine, including a comparative sketch. | ||
| View original record | SECRET. -E. ) FROM R. -BY. ) (At Le Canadel.) HS. ) R8/M23.2.29. REC'D AT WW. 28.2.29. ORIGINAL G. to SG. WOR. CWR. (Strikethrough) L.H. SS. ENGINE. x7772 (handwritten) /x7060 (handwritten with… | ||
| Scan187 | Whether to manufacture electrical accessories in-house or license designs from companies like Bosch. | ||
| View original record | SG. FROM R. (At Le Canadel.) C. to WCR. DA. EV. ERO. HS. BY. ORIGINAL R4/M23.2.29. REC'D AT WW. 28.2.29. ACCESSORIES OF HIGHEST QUALITY. X.3594 C4478 I should like our management to consider whether… | ||
| Scan188 | Potential for in-house manufacturing or licensing of electrical accessories, specifically screen wipers and horns. | ||
| View original record | 2 -ss. FROM R. (At Le Canadel.) ORIGINAL R4/M23.2.29. REC'D AT WW. 28.2.29. C. to WGR. DA. H. EFC. HS. DY. ACCESSORIES OF HIGHEST QUALITY. X.4478 X.7550 I should like our management to consider… | ||
| Scan189 | Modifying the front brake direct leverage system on a chassis lacking a gearbox countershaft. | ||
| View original record | ORIGINAL SECRET. BY. FROM DA. C. to SG. HS. DA2/M23.2.29. L.H.SS. FRONT BRAKE DIRECT LEVERAGE. X7772 As we have no gearbox countershaft we find some difficulty in obtaining the new direct braking on… | ||
| Scan190 | Design of an SS Valve Gear Cover, focusing on noise reduction and material choice. | ||
| View original record | FROM E. SECRET ORIGINAL E1/M25.2.29. C. to HS. BY. SS. VALVE GEAR COVER. X7060 Attached blueprints LeC.2677. & 2679. herewith shew the above arranged with the following features: (1) Three holding… | ||
| Scan191 | Carburetion, water circulation, throttle heating, and engine performance. | ||
| View original record | SECRET. FROM R. (At Le Canadel.) c.c. to SG. WOR. DA. PN. OWB. OY. SS. CARBURATION. WATER CIRCULATION. X7080 X7230 X7250 X7180 LeC.2675. received of the valve working with shutter control in the above… | ||
| Scan192 | Comparison of valve gear oil pressures during warming up and normal running periods. | ||
| View original record | ORIGINAL SECRET. E2/M25.2.29. FROM E. Copy to HS. " " re. VALVE GEAR LUBRICATION. x7060 x7010 The attached report HS7/LG19.2.29., shews that the intermediate oil supply as we anticipated reaches quite… | ||
| Scan193 | The maximum oil pressures for the 'SS' engine when starting from cold. | ||
| View original record | COPY. E. FROM HS. HS7/LG1912.29. 'SS' OIL PRESSURES. X7010 X7060 With reference to E1/M15.2.29. on starting up the SS. engine from cold and running at approx: 500 RPM., the oil pressures attain the… | ||
| Scan194 | Proposed sling for the centre of a horizontal pipe in an SS exhaust system. | ||
| View original record | ORIGINAL BY. FROM DA. SECRET DAL/M26.2.29. C. to HS. SS. EXHAUST SYSTEM. X7230 Herewith we send N. sch. 2842. shewing the proposed sling for the centre of the horizontal pipe. It is intended to be… | ||
| Scan195 | Secret memo regarding scheme 2843, detailing a stop for an SS. exhaust system's sliding joint. | ||
| View original record | BY. FROM DA. C. to er. HS. SECRET. SS. EXHAUST SYSTEM. ORIGINAL DA2/M26.2.29. X7236 Herewith we send N. scheme 2843., shewing the stop to prevent the horizontal pipe coming out of the sliding joint,… | ||
| Scan196 | Scheme for a hinged rear number plate and tail lamp assembly. | ||
| View original record | ORIGINAL DY. FROM DA. SECRET. DA5/M26.2.29. C. to SS. HS. =SS= REAR NUMBER PLATE & TAIL LAMP. X4152 X5800 X2800 Herewith we send N. sch. 2844. shewing the proposed method of carrying the tail lamp… | ||
| Scan197 | Engine mounting options, considering different feet designs, fabrication methods, and vibration issues. | ||
| View original record | SECRET ORIGINAL FROM R. (At Le Canadel.) R1/M26.2.29. REC'D AT WW. 2.3.29. C. to SG. WCR. HS. BY. G.4. ENGINE MOUNTING. X5005 I like the position of the feet sketched on E's memo. of 16.2.29., but I… | ||