Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Front axle control, the bending of the 20HP front axle, and proposed modifications to the brake servo and axle design. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. ) FROM R. ~~Ry.)~~ R5/M1. 10. 25. ~~Copy to OJ.~~ FRONT AXLE CONTROL. AND BENDING OF 20HP. FRONT AXLE. X5420 ~~X5940~~ I suggest that… | ||
| Scan1 | Modifications to the 20HP steering system to reduce road shock. | ||
| View original record | [STAMP] ORIGINAL (RY) FROM R. (Fmr.) Copy to - [illegible] " HS. 20HP. STEERING. GMK.49 - G.D.FLATHER ESQ. [Handwritten] X4264 [Handwritten] X4118 Referring to HM11/W29925., I did not notice that the… | ||
| Scan2 | Requesting comparative weights for the India front axle against the old axle and stating the weight of a new forging. | ||
| View original record | TO HS. FROM DA.. ORIGINAL DA6/M2.10.25. INDIA FRONT AXLE. X5420 X.4538 We have not yet received the comparative weights between the four wheel brake axle, and the old axle. The forging we have down… | ||
| Scan3 | Design changes to the India front axle pivot and requesting a 10,000 miles bumping test. | ||
| View original record | TO DY. FROM DA. Copy to - GI. HS. ORIGINAL DA1/M2.10.25. INDIA FRONT AXLE PIVOT. X5420 75430 Herewith we send N. scheme 2058. shewing how the plain bearing should be arranged at the top of this pivot… | ||
| Scan4 | Device for curing squeaking brakes on 20.HP cars. | ||
| View original record | TO BJ. FROM R. Copy to - HS. ORIGINAL SQUEAKING BRAKES ON 20.HP. Y4257 / x5940 Referring to your BJ3/H28925., there may never be an absolute cure, but our device on India is good, and should be… | ||
| Scan5 | Defects in an India Front Axle forging that are causing it to twist. | ||
| View original record | TO DB. FROM DA. Copy to HS. ORIGINAL. DA3/M2.10.25. INDIA FRONT AXLE. X 52720 With reference to these axles twisting, we send herewith N.scheme 2061. shewing how we should like the end of the axle… | ||
| Scan6 | Modifications to the Phantom petrol tank, specifically abandoning the weir system for a new level device and enlarging filters. | ||
| View original record | ORIGINAL TO BY. FROM DA. DA4/M2.10.25. Copy to - CS. HS. PHANTOM PETROL TANK. Y8460 We send herewith N. scheme 2059. shewing a modified 2 level device, dispensing with the weir shewn on N.sch. 2051.… | ||
| Scan7 | The manufacturing difficulty of whitemetal lined steering nuts and a proposed solution. | ||
| View original record | ORIGINAL TO BY. FROM DA/HDY. Copy to - CI. HS. STEERING NUTS. X8430 X5430 With regard to the difficulty experienced in manufacture of the present type of whitemetal lined nut, in obtaining an equal… | ||
| Scan8 | Mr. Royce's request to machine down a Phantom front axle to test how light it can be before becoming weak. | ||
| View original record | [redacted] FROM DA. ORIGINAL DA1/M3.10.25. Copy to HS. PHANTOM FRONT AXLE. X8420 Mr. Royce wishes to machine an axle down with a view to seeing how light it could be before it became weak. We… | ||
| Scan9 | Design modifications for the Phantom petrol tank. | ||
| View original record | TO BY. FROM DA. Copy to - EJ. " HS. ORIGINAL DA5/M3.10.25. PHANTOM PETROL TANK. XSC60 Herewith we send N. scheme 2060. shewing the new side filler for the above tank. The end of the tank is to be… | ||
| Scan10 | Potential weight-saving improvements to the brake system for the 10,000 miles Phantom car. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS.) FROM DA. DA3/MS.10.25. 10,000 MILES PHANTOM CAR X89409 48420 It is understood that this car will have the duralumin brake carrier on the… | ||
| Scan11 | DA to HS regarding modifications for the India 10,000 miles car. | ||
| View original record | ORIGINAL TO HS. FROM DA. DA2/M3.10.25. INDIA 10,000 MILES CAR. X5840 / V3803 This is to remind you that Mr. Royce wishes the 10,000 miles car to have steering to N.scheme 2062* fitted. He would also… | ||
| Scan12 | Correspondence agreeing to a proposed method for fitting India rear squeak dampers. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. Copy to By. DA2/M5.10.25 INDIA REAR SQUEAK DAMPERS. X5570 Referring to the sketch of the method of arranging the squeak damper on… | ||
| Scan13 | With sketches proposing modifications to the India front brake dust cover. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL. TO HS. FROM DA. Copy to BY. DA1/M5.10.25. INDIA FRONT BRAKES + DUST COVER. X5940 Referring to the question of keeping mud etc out of the front… | ||
| Scan14 | Modifications and design ideas for Phantom silencers. | ||
| View original record | R.R. 235A (10C-T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM E. Copy to Cl.BY. [Strikethrough] re. PHANTOM SILENCERS. E1/M5. 10. 25 X8230 Regarding your visit to WW. on Friday last, I return… | ||
| Scan15 | List of modifications for the Phantom Engine 'Z' series and the next car for France. | ||
| View original record | TO BY. HS. FROM R. (BY. is struck through) C.c. to CJ. BJ. E. (entire line is struck through) ORIGINAL PHANTOM ENGINE. MODIFICATIONS FOR 'Z' SERIES, X8770 AND NEXT CAR TO FRANCE. X8940a (1) IGNITION.… | ||
| Scan16 | List of modifications for the 'Z' Series Phantom Frame and the next car destined for France. | ||
| View original record | ORIGINAL TO [text struck out] HS. FROM R. C. to [text struck out] R1/M6.10.25. PHANTOM FRAME ETC. MODIFICATIONS FOR 'Z' SERIES, AND NEXT CAR TO FRANCE. (handwritten) X8770 (handwritten) X8940a The… | ||
| Scan17 | List of specifications and proposed modifications for vehicle components, numbered 13 to 19. | ||
| View original record | (2) (13) Subframe side levers. N.sch. 1870. (14) Sheet steel wing stays. N.sch. 1824. (15) Dipping head lamps - RR. type. N.schs. 1824. 1855. (16) Springs of superior manufacture. a. Improved heat… | ||
| Scan18 | List of modifications for the 'Z' Series Phantom Frame and the next car to run in France. | ||
| View original record | TO DY. HS. FROM R. C. to CJ. BJ. DA ORIGINAL PHANTOM FRAME ETC. X8380 Y8940a X8430 Y8770 MODIFICATIONS FOR 'Z' SERIES, AND NEXT CAR TO FRANCE. The following modifications should be on the next car to… | ||
| Scan19 | List of vehicle component specifications and design proposals, continued on page 2. | ||
| View original record | (2) (13) Subframe side levers. N.sch. 1870. (14) Sheet steel wing stays. N.sch. 1824. (15) Dipping head lamps - RR. type. N.schs. 1824. 1855. (16) Springs of superior manufacture. a. Improved heat… | ||
| Scan20 | Issues with Rapson tyres, their balance and contribution to steering wobble. | ||
| View original record | TO HS. FROM DA. DA5/M7. 10. 25. ORIGINAL X1238 X457 X901 RAPSON TYRES & STEERING WOBBLES. We know that you do not like Rapson tyres, and that you have found them to be considerably out of balance and… | ||
| Scan21 | New louvered bonnet design for the Phantom, referencing scheme 2064 and car 7-EX. | ||
| View original record | ORIGINAL FROM DA. DA1/M7.10.25. Copy to - HS. NEW PHANTOM LOUVRED BONNET. X8260 WE send herewith N. scheme 2064. shewing the new type of louvres Mr. Royce would like trying. We should like the length… | ||
| Scan22 | Comparing the quietness of American Bosch, Smith, and Peerless windscreen wipers. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA1/M12.10.25. WINDSCREEN WIPERS. 4175 We believe you mentioned the American Bosch as being a possible electric wiper. We… | ||
| Scan23 | Insufficient heating on a Phantom induction pipe, proposing modifications and requesting temperature tests. | ||
| View original record | ORIGINAL R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM E. Copy to | ||
| Scan24 | Modifications to the Phantom silencer, including material changes and a suggestion from Mr. Royce. | ||
| View original record | TO BY. FROM E. Copy to - CJ. HS. ORIGINAL PHANTOM SILENCER. 18230 We send you herewith drawing LeC. 2153., shewing the rear silencer modified to incorporate the 2nd. concentric tube. The fittings at… | ||
| Scan25 | New design for a large worm outside pendulum lever type steering for the Goshawk model. | ||
| View original record | TO C.C. FROM R. (TO C.C. is struck through) Copy to - E.H. H.S. (E.H. is struck through) ORIGINAL R8/M13.10.25. STEERING - GOSHAWK. X5430 DAMPED PENDULUM LEVER. Mr. Hardy is just completing a design… | ||
| Scan26 | Proposing to shorten wire wheel hubs, similar to what was done for steel artillery wheels. | ||
| View original record | TO C.I. FROM R. Copy to - E.I. P.Y. HS. ORIGINAL R6/M13.10.25. X421 f4586 ROAD WHEEL HUBS. We have successfully shortened these for steel artillery wheels. We are now proposing to do the same for wire… | ||
| Scan27 | New design for the Phantom front axle, stub axles, and steering levers to save weight. | ||
| View original record | ORIGINAL ~~TO CG.~~ FROM R. R5/M13.10.25. Copy to - ~~B.I.~~ ~~R.V.~~ HS. PHANTOM FRONT AXLE, Y8420 STUB AXLES & STEERING LEVERS. Y8430 We have in hand another design to save weight for equal… | ||
| Scan28 | Benefits of using a stepped dashboard for the Phantom & Goshawk models. | ||
| View original record | ORIGINAL TO [strikethrough] FROM R. Copy to - SS. [strikethrough] RA. [strikethrough] DX. [strikethrough] HS. DASHBOARDS. PHANTOM & GOSHAWK. Handwritten: V82430 / Y52430 V5300 / X8500 Last year we… | ||
| Scan29 | Potential purchase of competitor cars, the Austro-Daimler and the Bentley, for analysis. | ||
| View original record | ORIGINAL TO CJ. FROM R. R12/M13.10.25. Copy to - HS. EP. AUSTRO-DAIMLER. X1056 X3805 The car which has some novel features, and which promises to compete with our Goshawk, is the 19/70HP.… | ||
| Scan30 | Bentley 40HP car's engine and chassis compared to their own. | ||
| View original record | TO CJ. FROM R. (CJ is struck through) Copy to -BJ. HS. (BJ is struck through) ORIGINAL (stamp) re. BENTLEY CAR. 40HP. 4" X 5 1/2". V3805 (handwritten and underlined) E. thinks the engine is… | ||
| Scan31 | Weight-saving campaign for the New Phantom, comparing performance to competitors, and suggesting duralumin main bearing caps. | ||
| View original record | TO CJ. FROM R. (CJ is struck through) C. to - BJ. DY. (BJ. DY. is struck through) HS. ORIGINAL NEW PHANTOM WEIGHT. x8840 x5805 (handwritten) I think that we should increase the vigour of our campaign… | ||
| Scan32 | Supply difficulties with duralumin pressings for the brake carrier and suggesting proceeding with an aluminium casting. | ||
| View original record | ORIGINAL TO DY. FROM DA. Copy to - HS. DA1/M13.10.25. X5940 X8420 We understand from HS2/LG101025., that there is difficulty in getting duralumin pressings for the brake carrier. R. would like you to… | ||
| Scan33 | Expressing doubt about the necessity and effectiveness of air cleaners for cars on English roads. | ||
| View original record | ORIGINAL TO CJ. (struck out) FROM R. Copy to - BJ (struck out) HS. AIR CLEANERS. X.3812 (handwritten) Air cleaners are not much needed for England with our dustless roads, and we cannot fit all the… | ||
| Scan34 | The dilution of oil with petrol, suggesting a scheme to trap it before it reaches the cylinders. | ||
| View original record | TO CJ. FROM R. Copy to - BJ. HS. ORIGINAL R3/M13.10.25. X1588 X985 DILUTION OF OIL WITH PETROL ETC. This should only be bad in very cold climates, and where petrol is used wastefully. We are… | ||
| Scan35 | Improvement of the Phantom exhaust system and a trial of a smaller aluminium silencer. | ||
| View original record | ORIGINAL TO CS. FROM R. R10/W13. 10. 25. Copy to - ~~BJ.~~ ~~EV.~~ HS. PHANTOM EXHAUST SYSTEM. 48230 We have to improve the efficiency of the exhaust system. The only way I know is to increase the… | ||
| Scan36 | Implementation of a lubrication piping system to inaccessible points for owner-drivers. | ||
| View original record | ORIGINAL TO-CG. FROM R. Copy to -EB. HY. HS. R7/M13.10.25. X8880 X5980 LUBRICATION - (OWNER DRIVER.) We must have a piping system to at least the inaccessible points, such as - Back end of front… | ||
| Scan37 | Proposed modifications for the New Phantom chassis. | ||
| View original record | TO EV.) FROM R. HS.) Copy to CJ. [text is struck through] ORIGINAL R2/M15.10.25. X8770 [handwritten] X8500 [handwritten and struck through] X8310 [handwritten] NEW PHANTOM MODIFICATIONS. EV. is… | ||
| Scan38 | The delayed delivery of a New Phantom car chassis to the coachbuilders. | ||
| View original record | TO HS. FROM R. ORIGINAL R1/M15.10.25. NEW PHANTOM CAR FOR R. 48770 EV. has the impression that the chassis for my use has not yet been sent to the coachbuilders, and it is already very late.… | ||
| Scan39 | With sketches discussing modifications to Phantom pistons to resolve knocking issues. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. Copy to CJ. DY. [Text is struck through] R5/M15.10.25. PHANTON PISTON TROUBLE - KNOCK. X.4199 X 8040 [X 8040 is struck through]… | ||
| Scan40 | Design sketch and discussion of a horizontally-slit, one-piece aluminium piston with two-bolt steel pedestals. | ||
| View original record | (2) (7) Make a piston thus - (see sketch below.) [Handwritten on sketch] TWO BOLT STEEL PEDESTALS WITH SOLID DOWELS. ONE PIECE ALUM PISTON SLIT HORIZONTALLY HALF WAY ACROSS & SPLIT ON NON PRESSURE… | ||
| Scan41 | Potential overstressing of springs in the Phantom's side steering tube due to deflection allowances. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DAL/M17.10.25. X.8450 PHANTOM - SPRINGS IN THE SIDE STEERING TUBE. We notice on F.72514. that the springs in the side steering… | ||
| Scan42 | Letter from 'R.' to 'CJ.' regarding the decision to use a 4-speed gearbox over a 3-speed, due to buyer preference and overcoming design issues. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO CJ. FROM R. As for your information R4/M19.10.25. EXPERIMENTAL WORK. X8310 / X5310 X.8920 My dear CJ., Referring to your CJ7/E161025., and the… | ||
| Scan43 | Questioning the proposed experimental work on a three-speed gearbox for the 40/50 HP chassis. | ||
| View original record | To R. from CJ. Experimental Work. CJ7/E16/10/25 I notice in Hs's list of Work in Production in the Experimental Department, under the heading ZAC.I., there bs mention made of a three speed gearbox.… | ||
| Scan44 | From R. to H.S. regarding a change to the New Phantom exhaust cutout. | ||
| View original record | TO HS. FROM R. Copy to GI " BY. ORIGINAL. X.Sat 90 R5/M19.10.25. NEW PHANTOM EXHAUST CUTOUT. Referring to your HS/AJLL/LG161025., I am in favour of making this positive in both ways, as lately… | ||
| Scan45 | Outlining Mr. Royce's decision not to use a multiple plate clutch arrangement for the India Front Axle. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL. TO HS. FROM DA. DA1/M22.10.25. INDIA FRONT AXLE. X8420 X5420 Referring to HS4/LG151025., Mr. Royce does not wish to use the multiple plate… | ||
| Scan46 | Potential modifications to the Phantom four-wheel brake system to adjust friction and prevent thumping. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM DA. DA3/M22.10.25. PHANTOM FOUR WHEEL BRAKES. X8420 Referring to HS9/LG141025., we do not remember to have seen previously a report that you… | ||
| Scan47 | Proposal for a revised method of manufacturing 'India Front Springs' to increase their lifespan by adding an extra plate. | ||
| View original record | TO [text struck through] FROM DA. C. to [text struck through] HS. ORIGINAL DA9/M22.10.25. INDIA FRONT SPRINGS. X5440 We send herewith N. scheme 2074. shewing a revised method of making the front… | ||
| Scan48 | Revised seating positions, pedals, and steering columns for a chassis. | ||
| View original record | TO ~~RY.~~ FROM DA. C. to ~~GL.~~ HS. DA8/M22.10.25. ORIGINAL EAC. SEATING POSITIONS. X 8430 We send herewith N. scheme 2070. shewing the seating positions with revised positions of pedals, and… | ||
| Scan49 | Sending drawings for a modified hollow dashboard, its specifications, and steering adaptations. | ||
| View original record | ORIGINAL TO BX, FROM DA. Copy to HS. DA6/M22.10.25. EAC. 8. DASHBOARD. X7500 / Y7430 We send herewith N.scheme 2069. (two sheets) shewing the hollow dashboard for the above chassis. It is set out for… | ||
| Scan50 | Preliminary layout and advantages of the modified EAC.8 Phantom chassis. | ||
| View original record | TO DY. (struck through) FROM DA. C. to - GS (struck through) HS. EAC.8. - GENERAL ARRANGEMENT. ORIGINAL (stamp) DA7/M22.10.25. X 7770 (handwritten) We send herewith N. scheme 2068. shewing the… | ||
| Scan51 | Aero engine and chassis matters, including superchargers, engine names and magnetos. | ||
| View original record | TO CJ. FROM R. Copy to - RG " BY " HS. VISIT OF RG. & HS. TO WW. ON WEDNESDAY 21. INST. We had a long discussion on various aero engine and chassis matters on Wednesday last. I was pleased that RG. is… | ||
| Scan52 | On gear reduction for aero engines, contrasting epicyclic and spur gears, and detailing the Eagle XVI design. | ||
| View original record | (2) be considered by us now as it would result in serious modifications if they were not foreseen. We are also arranging for the engines to be runnable with and without the supercharger. Regarding… | ||
| Scan53 | Use of artillery wheels, comparing their weight and strength to alternatives. | ||
| View original record | [Stamp: ORIGINAL] TO CJ. FROM R. R1/M24.10.25. C. to - BJ. BY. HS. PN. re. ARTILLERY WHEELS. [Handwritten: X4586] [Handwritten and crossed out: X5809] Replying to your CJ3/E211025., I agree to… | ||
| Scan54 | Supplying a drawing for boxing in the change gear system on Phantom and India models to prevent fumes in bodies. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM R. Copy to CG. " BY. " AJS. FUMES IN BODIES. X3908 / X8320 (crossed out) / X5320 (crossed out) With reference to the fumes in bodies, AJS. will… | ||
| Scan55 | Alteration to the 4-wheel brake servo spring arrangement for the Phantom & India models. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. Copy to - C.L. BY. DA. 4 WHEEL BRAKES - PHANTOM & INDIA. I have suggested that it is possible you will find an improvement in altering the… | ||
| Scan56 | The reasons for moving towards a shorter chassis and the associated design modifications. | ||
| View original record | TO. BY. FROM R. C. to Ed. BJ. WOR. [struck through] HS. FN. CWB. [struck through] e. [handwritten] ORIGINAL [stamp] R6/M24.10.25. EAC. 8. X7770 [handwritten] This chassis is very urgent for the… | ||
| Scan57 | Design decisions regarding the gearbox suspension, frame, radiator, and other chassis components. | ||
| View original record | (2) We have looked carefully into the question of the improved suspension of the gearbox, but we find that it will delay matters too much to wait for this, so we are completing the drawing exactly as… | ||
| Scan58 | Internal memorandum detailing impressions from a motor show and proposed improvements for the Phantom I chassis. | ||
| View original record | TO R.J. FROM R. C. to C.J.R. HS. MOTOR SHOW IMPRESSIONS. With reference to the Motor Show the impression I have that many of the chassis shewn (as so often is the case) had not been tested. Some were… | ||
| Scan59 | Results of testing Shell super light racing oil and its performance compared to thicker oils. | ||
| View original record | BY+ (crossed out) TO HL. FROM R. Copy to -CJ. -HS. HS ✓ ORIGINAL R2/M24.10.25. √1588 √967 √1523 LUBRICATING OIL. Thank you for examining the Shell super light racing oil. It would seem that this has… | ||
| Scan60 | Running experience of Phantom cars, chassis weight reduction, and the development of hydraulic shock absorbers. | ||
| View original record | TO CJ. FROM R. Copy to - HS. BY re. RUNNING OF PHANTOM AND INDIA. [Stamped: ORIGINAL] R2/M27.10.25. [Handwritten: (X8770 +235 / X5770 +832)] We had some running experience of the cars last weekend -… | ||
| Scan61 | Proposal for revised springs in a side steering tube, comparing the stress levels of the existing and proposed designs. | ||
| View original record | TO BY. FROM DA. Copy to - CJ. - HS. ORIGINAL DA1/M27.10.25. INDIA - SIDE STEERING TUBE. X52450 We send herewith N. scheme 2067. shewing the revised springs in the rear end of the side steering tube… | ||
| Scan62 | Expressing opinions on car body design, specifically avoiding heavy, top-heavy, and cramped bodies. | ||
| View original record | TO CJ. FROM R. C. to HA. BY. HS. ORIGINAL R3/M27.10.25. re. BODIES. X 8830 / X5870 I am sometimes misunderstood on the question of bodies. I cannot say that I am a good critic of what ought to be… | ||
| Scan63 | Scheme 2066 for 'India Steering', detailing layout, limitations, and a proposed experimental steering lever for the New Phantom. | ||
| View original record | ~~TO BY~~ FROM DA. Copy to - ~~Col.~~ HS. ORIGINAL DA1/M28.10.25. INDIA STEERING. X5430 We send herewith N. scheme 2066. shewing the layout of the side steering tube, etc, with the steering with… | ||
| Scan64 | Strategies for reducing the weight of various chassis and engine components for the EAC. 8. model. | ||
| View original record | FROM R. C. to [REDACTED] HS. EAC. 8. X7770 X7840 In our new attempt with EAC. 8. we are endeavouring to reduce the weight of the front axle, the radiator, and many other parts, and I think it will be… | ||
| Scan65 | Expressing disapproval of a trial car body's weight and the use of a smaller-than-standard steering wheel. | ||
| View original record | ORIGINAL TO C.J. FROM R. C. to Bdy-Wks. " GHE. " H.S. re. ENCLOSED BODY SENT TO FRANCE FOR TRIAL. X8830 T8430 This body, like many of the 40/50s. has I think become prohibitively heavy, and I would… | ||
| Scan66 | Confirmation to use screwed-in valve seats from the RR. F.X. design for the Eagle 16 cylinder head. | ||
| View original record | TO BY FROM E. Copy to - RG " - HS. ORIGINAL E2/M30.10.25. RR. E.16. CYLINDER HEAD. 14098 It is hereby confirmed that Eagle 16. should be instructed with screwed in valve seats of the same type as… | ||
| Scan67 | Factors affecting Phantom braking distances, such as pedal operation speed and its influence on the servo system. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA2/M31.10.25. PHANTOM BRAKING. X8470 We have recently had to supply Mr. Minchin with some pulling up distances for his Phantom… | ||
| Scan68 | With sketches requesting tests on four different induction pipe and carburettor systems for the EAC engine. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM E. Copy to CJ. E1/M2. 11. 25. INDUCTION PIPES. Y 8070 With the object of learning something further about induction pipe… | ||
| Scan69 | From 'R' to 'HS' outlining the progress and expected completion of various design and experimental projects. | ||
| View original record | ORIGINAL TO BY. HS. FROM R. (BY. is struck through) Copies to CJ. BJ. (CJ. BJ. is struck through) " WOR. TG. (WOR. TG. is struck through) " DA. AJS. (DA. AJS. is struck through) re. DESIGN &… | ||
| Scan70 | Scheme N. 2077 for a radiator with integral shutters, comparing it to the previous 'W' series. | ||
| View original record | ORIGINAL TO BY. FROM DA. DA2/M3.11.25. Copy to - HS. EAC. 8. RADIATOR & SHUTTERS. X.7250 We send herewith N. scheme 2077. shewing the radiator with integral shutters. The height of this radiator above… | ||
| Scan71 | Modifications to the radiator suspension, cross member, and engine supporting arms for scheme 2076. | ||
| View original record | ORIGINAL TO BY, FROM DA. Copy to CL HS. DA1/M3.11.25. EAC. 8. RADIATOR SUSPENSION AND X7250 CROSS MEMBER. We send herewith N. scheme 2076. shewing the method of mounting the radiator, and the radiator… | ||
| Scan72 | Accelerator pedal layout for 'C' and 'D' type models, noting a control rod modification. | ||
| View original record | FROM DA. Copy to - HS. EAC. 8. ACCELERATOR PEDAL. X7470 We send herewith N. scheme 2073. shewing the layout of the position of the accelerator pedal on 'C' and 'D' type. This we think gives you all… | ||
| Scan73 | Scheme 2084, a full-sized layout confirming engine position in the frame. | ||
| View original record | TO BY. FROM DA. Copy to - CG. HS. ORIGINAL DA3/M4.11.25. EAC. 8. - ENGINE POSITION IN FRAME ETC. X7380 X7770 We send herewith N. scheme 2084. shewing a full sized layout of the front end of engine,… | ||
| Scan74 | Layout of 'B' type pedals with reference to scheme 2072. | ||
| View original record | COPY FROM DA. DA1/M4.11.25. Copy to - [Strikethrough] " - HS. ORIGINAL EAC. 8. PEDALS. X7470 We send herewith N. scheme 2072. shewing the layout of the 'B' type pedals. The method of construction is… | ||
| Scan75 | Different positions of the 'W' series accelerator pedal, referencing scheme 2078. | ||
| View original record | To DY. FROM DA. Copy to - HS. ORIGINAL DA1/M5.11.25. 43450 48470 x7470 ACCELERATOR PEDAL - 'W' SERIES. We send herewith N. scheme 2078. We have shewn on this the various positions of the pedal which… | ||
| Scan76 | Alternative radiator suspension design, N.scheme 2086, using spherical supports. | ||
| View original record | FROM DA. C.to - HS. ORIGINAL EAC. 8. RADIATOR SUSPENSION. X 7250 Herewith we send N.scheme 2086. shewing an alternative arrangement of the spherical supports providing a certain amount of protection… | ||
| Scan77 | Proposal for a new hydraulic shock damper for the Phantom model, detailing necessary modifications. | ||
| View original record | ~~TO BY.~~ FROM DA. C. to ~~CJ.~~ HS. ORIGINAL DA5/M7.11.25. NEW PHANTOM SHOCK DAMPERS. X 8520 / X.235 We send herewith N. scheme 2085. shewing the proposed new hydraulic shock damper. The position on… | ||
| Scan78 | Modification to the F.10 engine specification, increasing the stroke, capacity, and power output. | ||
| View original record | TO BJ. FROM R. C. to - ~~CJ~~ HS. ORIGINAL R2/M7.11.25. MODIFICATION TO THE SPECIFICATION FOR RR. F.10. X.3804 / X5366 Owing to the recent information of the increased size of the Curtiss engine (… | ||
| Scan79 | Request for various parts to be sent to Barkers for an Experimental Cabriolet, including a suggestion for an electric screen wiper. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA/EV. DA/EV2/M7.11.25. Copy to C/HN. EXPERIMENTAL CABRIOLET - 10.G.3. X5770 X475 Will you please send to Barkers for the above car -… | ||
| Scan80 | Instructions for oil fittings and piping on the Eagle 16 test engine. | ||
| View original record | TO ~~BY~~. FROM E. Copy to - ~~Col.~~ ~~R.G.~~ HS. ORIGINAL E2/M9.11.25. RR. E.16. OIL FITTINGS. Y3808 No further instructions for oil fittings will be sent from here for Eagle 16. We are expecting… | ||
| Scan81 | Carburetter options for the Eagle 16 engine. | ||
| View original record | TO BX. FROM E. Copy to - OJ HS. ORIGINAL RR. E.16. CARBURETTERS. Regarding the carburetters for Eagle 16., Mr. Royce does not intend to make a special design yet, until we have tested the induction… | ||
| Scan82 | Postponing instructions for the Eagle 16 engine's ignition wire fittings and screening. | ||
| View original record | COPY (struck through) FROM E. ORIGINAL E3/M9.11.25. Copy to - CS. (struck through) HS. X 4114 EAGLE 16. IGNITION WIRE FITTINGS & SCREENING. With regard to the above section of Eagle 16. engine, kindly… | ||
| Scan83 | Proposing the standardization of a new switchbox design for 40/50 & 20HP models. | ||
| View original record | ORIGINAL 4 FROM DA/EV. DA/EV1/M10.11.25. C. to HS. (Handwritten) X4186 X8730 X4081 X5730 40/50. & 20HP. SWITCHBOXES. We have for some time had a design of switchbox which enters from the back of the… | ||
| Scan84 | Parts required to complete chassis 9-PK, an Enclosed Limousine, at Hoopers coachbuilders. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL 1 TO HS. & C. FROM DA/EV. DA/EV1/M11.11.25. re. CHASSIS 9-PK. - ENCLOSED LIMOUSINE X8770 AT HOOPERS. Hoopers inform us that in order to complete… | ||
| Scan85 | On the reasoning for introducing a stepped dashboard and its impact on the steering column, scuttle, and bonnet length. | ||
| View original record | ORIGINAL FROM R. C. to - HS. BODY MATTERS - EAC. 8. STEPPED DASH ETC. Regarding the stepped dashboard our reason for introducing it is principally to obtain an improved support for the steering… | ||
| Scan86 | Observations on seating arrangements for passenger and driver comfort, and personal notes on tyre preferences. | ||
| View original record | (2) (these screens were very unsatisfactory.) It came down to the floor of the car and so embarrassed the feet of the rear passengers. Naturally nothing should be in this position, and the back of the… | ||
| Scan87 | Scheme 2087, showing the outline for an India front axle side steering lever with an experimental ball end. | ||
| View original record | TO Df. FROM DA. ORIGINAL. DA2/M12.11.25. C. to -GJs. HS. INDIA FRONT AXLE - SIDE STEERING LEVER. X5420 X5450 We send herewith N. scheme 2087. shewing the outline of the side steering lever with… | ||
| Scan88 | The mounting of a new hydraulic shock absorber for the 40/50 model. | ||
| View original record | ORIGINAL TO B̶Y̶. FROM DA. Copy to - C̶J̶ HS. DA3/M13.11.25. 40/50. HYDRAULIC SHOCK ABSORBER. X235 / X8520 We send herewith N. scheme 2089. shewing the mounting of the new hydraulic shock absorber on… | ||
| Scan89 | Layout and shortening of the side steering tube. | ||
| View original record | ORIGINAL TO BY. FROM DA. DA1/M13.11.25. Copy to - CJ HS. EAC. 8. - SIDE STEERING TUBE. X7450 We send herewith N. scheme 2088. shewing the layout of the side steering tube on the above chassis. We did… | ||
| Scan90 | Standard steering wheel and seat dimensions, with a proposal for a new trial wheel design. | ||
| View original record | TO C.G-D.L. FROM R. C. to - [text obscured by strikethrough] HS. ppR. [text obscured by strikethrough] ORIGINAL R2/M16.11.25. re. STEERING WHEELS, & SEATS. X8430 X8830 As standard, I do not agree to… | ||
| Scan91 | New front axle design for the Phantom to reduce steering wobbles. | ||
| View original record | ORIGINAL TO BP. FROM R. C. to CI. PL. HS. re. PHANTOM FRONT AXLE (STEERING WOBBLES.) X 235 X 8420 X 457 X 8430 DA. is sendinga drawing of a new complete front axle, of a design we have made to give… | ||
| Scan92 | From R. to EFC requesting a report on the Sequence Starter. | ||
| View original record | ORIGINAL TO EFC. FROM R. R1/M17.11.25. SEQUENCE STARTER. X8650 I should be glad to have your report on the above as soon as possible. R. | ||
| Scan93 | Cold weather testing in France, focusing on carburation, induction pipes and the viscosity of lubricating oil. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL. TO HS. FROM R. Copy to B.J. C.J. " E.P. R.Y. CARBURATION, AND THICK OIL. R5/M18.11.25. x8080 x986 Now will be the time in France to test whether… | ||
| Scan94 | Proposal to delete ribs from Phantom brake drums for a weight reduction campaign. | ||
| View original record | TO HS. FROM R. Copy to CJ. (text is struck through) ORIGINAL. (stamped in green ink) R2/M18.11.25. PHANTOM BRAKE DRUMS. WEIGHT REDUCING CAMPAIGN. X8840 (handwritten and struck through) X.8350… | ||
| Scan95 | Awaiting the results of modified pistons designed to increase skirt flexibility and prevent knocking. | ||
| View original record | TO HS. FROM R. ORIGINAL. R3/M18.11.25. MODIFIED PISTONS. X8040 We are anxiously awaiting the result of the modification to the pistons (giving the opportunity of greater flexibility of skirt), to… | ||
| Scan96 | Drawing LeC. 2169 for a crankcase breather. | ||
| View original record | TO DY. FROM E. Copy to SS. HS: ORIGINAL E1/M18.11.25. RR. E.16. CRANKCASE BREATHER. X3811 We send you herewith drawing LeC. 2169., shewing the above. E. | ||
| Scan97 | Steering, tyre pressures, and proposed improvements to axle and suspension. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. BY. FROM R. ORIGINAL STEERING - TYRE PRESSURES. X3538 X5430 F8430 +457 I notice in France they have come to the same conclusion as myself namely,… | ||
| Scan98 | Design adjustments and component specifications for a chassis. | ||
| View original record | TO BY. & HS. FROM R. Copy to CJ. BJ. DA. AJS. ORIGINAL EAC. 8. X7720 Naturally this would not be kept back for the aluminium cyl. block or head. These items would be put on when they were ready. EAC.… | ||
| Scan99 | Confidential memorandum detailing the features and improvements of a new chassis, EAC. 1. | ||
| View original record | ORIGINAL CONFIDENTIAL. R2/M24.11.25. FROM R. (FOR CJ. ON HIS RETURN.) C. to [redacted] HS. EAC. 1. Y8920 K7770 I have seen this chassis. It contains most of the features we are putting on EAC. 7.,… | ||
| Scan100 | Testing an increased diameter tie-rod to improve frame stiffness and considering a redesign of the 40/50 gearbox. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2500 ORIGINAL RECEIVED R7/M18.11.25. TO HS. FROM R. Copy to C.L. (struck through) D.A. E.V. Y8380 (struck through) Y6810 Y5810 I have asked DA. to arrange for… | ||
| Scan101 | Valve patterns for Condor experiments, requesting a thorough test of the umbrella type. | ||
| View original record | ORIGINAL TO HS. FROM R. R4/M18.11.25. Copy to RG. " OJ. " BJ. VALVES. Y3616 With reference to valves, in your Condor experiments with these, a pattern which did not prove successful was strange to us.… | ||
| Scan102 | Providing scheme 2090 for the outline of frame side members and related dimensions to facilitate ordering. | ||
| View original record | TO BY. FROM DA. Copy to - HS. ORIGINAL DA3/M19.11.25. EAC. 7. FRAME ETC. X7380 X7770 We send herewith N. scheme 2090. shewing an outline of the frame side members together with information as to the… | ||
| Scan103 | Four unusual features of a new hydraulic shock damper design. | ||
| View original record | TO - DA. FROM R. C. to CG. RH. HS. Mr. Claremont. ORIGINAL R1/M20.11.25. re. RR. HYDRAULIC SHOCK DAMPERS. X235 / X8520 There are some particulars in connection with the above, which form a combination… | ||
| Scan104 | Proposals for reducing the weight of the Phantom engine. | ||
| View original record | TO D.I. & HS. FROM E. Copy to ~~C.J.~~ re. REDUCING WEIGHT OF PHANTOM ENGINE. With regard to the above question it is considered by Mr. Royce that the alterations for reducing the weight should be… | ||
| Scan105 | List of proposed design alterations for engine components with accompanying sketches. | ||
| View original record | (2) (12) Cancel the cast aluminium tube and flanges surrounding the oil pump drive in the lower half crankcase. (13) Cancel the top and bottom cored holes in the front feet of crankcase and knock out… | ||
| Scan106 | Design modifications to an aluminium head, crankcase, and the Falcon 10 engine. | ||
| View original record | (3) Regarding the drawing of the aluminium head you have sent us we think the drilled boss for the valve tappet rod is better than the inserted tube, but that the former could be considerably reduced… | ||
| Scan107 | Driver visibility issues due to steering wheel and radiator height, and a proposal to raise the 'D' steering. | ||
| View original record | ORIGINAL! TO CJ. FROM R. R1/M23.11.25. Copy to - BJ. " DY. " HS. " PH. re. 'D' STEERING - DRIVER'S VIEW. X5430 Doubtless the steering wheel can get in the way under adverse circumstances, but the… | ||
| Scan108 | Requesting an experiment to increase the thread diameter of frame tie-bars. | ||
| View original record | ORIGINAL. TO ~~BY.~~ FROM DA. Copy to - HS. DA1/M23.11.25. FRAME TIE-BARS. X8380 X5380 In accordance with Mr. Royce's wishes would you kindly make an experiment with tie-bars, in which the threads are… | ||
| Scan109 | Technical memorandum regarding proposed modifications and improvements to a sequence starter mechanism. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO EFC. } FROM R. HS. (crossed out) Copy to - CJ. " - BJ. " - BY. re. SEQUENCE STARTER. X8650 ---- The spring drive on this (as EFC. points out)… | ||
| Scan110 | From 'R' to 'HS' discussing car speeds at Brooklands, comparing an older model's performance to a newer one. | ||
| View original record | ORIGINAL. TO HS. FROM R. re. SPEED ON BROOKLANDS. X788 X8920 X8771 The London to Edinburgh car of about 1911. I seem to remember did 78 1/4 miles on Brooklands; now, with greater HP. we only do 74.… | ||
| Scan111 | Alteration to an engine mounting bracket and recommendations for fixing tubes. | ||
| View original record | TO [Struck through: DY] FROM E. Copy to [Struck through: Mr] HS. [Stamped: ORIGINAL] RR. E.16. ENGINE MOUNTING. [Handwritten, struck through: Y4114] [Handwritten: X3834] We send you herewith drawing… | ||
| Scan112 | Chassis modifications for carrying a rear spare wheel and repositioning the petrol filler. | ||
| View original record | TO HS. FROM R. Copy to CU. " DJ. " RV. ORIGINAL R2/M25.11.25. EAC. 1. & 7. 45920 X7770 We are arranging for these to carry one of the spare wheels at the rear. This is very advantageous to the general… | ||
| Scan113 | Solution for a sequence starter issue by altering the press button design. | ||
| View original record | R.R. 235A (10U T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO EFC. FROM R. R1/M25.11.25. re. SEQUENCE STARTER. X8650 We have found an excellent way for definitely preventing the undesirable phenomenon… | ||
| Scan114 | Development of a new lighter front axle and steering modifications for Phantom models. | ||
| View original record | [Struck through] FROM R. ORIGINAL R3/M25.11.25. Copy to - [Illegible] " - [Illegible] " - [Illegible] " - HS. X7420 X7980 X7430 EAC.7. - NEW LIGHTER FRONT AXLE. DA. hopes shortly to send you the new… | ||
| Scan115 | Experiments to improve petrol consumption by heating the throttle and carburetter. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL. TO HS. FROM R. Copy to GJ. " DJ. R4/M25.11.25. PETROL CONSUMPTION. X459/X8080 X8230 Please thank Mr. Rowbotham for his very able and complete… | ||
| Scan116 | The progress and potential testing of a differential across the clutch casing for the 10,000 miles car. | ||
| View original record | TO HS.) FROM DA. BY.) ORIGINAL. x8940a x8420 DA3/M26.11.25. We notice that the 10,000 miles car has still the front brake differential on one side. Some considerable time ago we did a differential… | ||
| Scan117 | Internal query regarding the exact specification of a front axle fitted to a car. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA2/M26.11.25. 10,000 miles car. X8420 X8940A We are not quite certain whether the front axle fitted to this car is exactly that on N.scheme 2055., that is, including the… | ||
| Scan118 | Scheme 2095, detailing clearances for front axle components such as the brake rod and steering lever. | ||
| View original record | TO BY FROM DA. Copy to - CJ HS. ORIGINAL DA2/M27.11.25. EAC. 7. FRONT AXLE. X7420 Herewith we send N. scheme 2095. shewing the clearances of the brake rod, steering lever, etc, on the various locks.… | ||
| Scan119 | The arrangement of a spare wheel carrier for the EAC.1 chassis, including provision for balloon tyres. | ||
| View original record | TO BY FROM DA. Copy to - CS. HS. ORIGINAL DA7/M27.11.25. EAC. 1. SPARE WHEEL CARRIER. X8920 X.7600 We sent you yesterday N. scheme 2079. shewing the arrangement of the rear end of EAC.1. chassis, to… | ||
| Scan120 | Scheme 2094 for a new front axle, including details for two different track widths. | ||
| View original record | TO B.Y. (struck through) FROM DA. Copy to - EAC (struck through) HS. ORIGINAL EAC. 7. front axle. Y7420 (handwritten) Herewith we send N. scheme 2094. shewing the arrangement of the pivots, brake… | ||
| Scan121 | Scheme 2093 for the front end frame arrangement, lock clearance, and steering tube shape. | ||
| View original record | TO RM. FROM DA. Copy to - CJ. HS. ORIGINAL DA6/M27.11.25. EAC. 7. FRONT END OF FRAME. X7380 WE SEND HEREWITH N. scheme 2093. shewing the general arrangement of the front end of the car. We shew 34°… | ||
| Scan122 | Scheme 2092 for a steering column mounting arrangement and a related crankcase modification. | ||
| View original record | TO BX, FROM DA. Copy to - CL. HS. EAC.7. STEERING COLUMN MOUNTING. +9430 We send herewith N. scheme 2092. shewing the arrangement of the steering column in the frame. The interior of the column is… | ||
| Scan123 | Scheme 2096 for front axle forgings, front brake operating gear, and spring pads. | ||
| View original record | TO BY. FROM DA. ORIGINAL DA3/M27. 11. 25. Copy to - CJ HS. EAC. 7. FRONT AXLE. Y7420 We send herewith N. scheme 2096. giving particulars of the front axle forgings, front Brake operating gear, spring… | ||
| Scan124 | Modification to the combined rear anchorage of front springs and front bracket for the tie-bar. | ||
| View original record | FROM DA. Copy to - HS. ORIGINAL DA4/M27.11.25. EAC.7. REAR ANCHORAGE OF FRONT SPRINGS. X7410 We send herewith N. scheme 2091. shewing the combined rear anchorage of front springs and front bracket for… | ||
| Scan125 | Sending scheme 2097, which details modifications to the steering box and rocker shaft. | ||
| View original record | TO BY. FROM DA. Copy to - CS. HS. ORIGINAL DA4/A1.12.25. EAC. 7. STEERING. X7430 Herewith we send N. scheme 2097. shew-ing further modifications to the steeringbox, rocker shaft etc, brought about by… | ||
| Scan126 | Design error for the Phantom's aluminium head and cylinders, stating the work is not ready to proceed. | ||
| View original record | TO-... FROM R. Copy to ... HS. ORIGINAL R2/M1.12.25. DESIGN REPORT BY8/H271125. X2917 / 78050 One comment in your last report on design is an error. Regarding the aluminium head and cylinders for… | ||
| Scan127 | Thrust test results for bearing No.215 as a replacement for No.313, with associated drawing modifications. | ||
| View original record | TO BY FROM AJS. Copy to - CL " " HS. ORIGINAL AJS2/M4.12.25. X3829 X3159 RR. E.16. DIRECT DRIVE NOSE AND THRUST BEARING. The results of the thrust tests on the New Departure bearing No.215. recently… | ||
| Scan128 | Calculations and observations regarding frame and chassis distortion. | ||
| View original record | R R. 235A (100 T) (S H. 159. 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DA2/M4.12.25. FRAME DISTORTION. X8380 Referring to your HS4/LG301125., we are interested in this question of frame distortion.… | ||
| Scan129 | Suggestions to reduce petrol loss from the petrol tank due to an air lock. | ||
| View original record | TO BY FROM DA. Copy to HS. ORIGINAL DA1/M5.12.25. PETROL TANK - EAC. 6. 78460 In reply to your BY/C10/DB21225., we send herewith N. scheme 2100. shewing a suggestion for reducing the amount of petrol… | ||
| Scan130 | Outlining a scheme for carrying a spare wheel at the rear of a sports car. | ||
| View original record | TO BY. FROM DA. Copy to - CJ HS. ORIGINAL DA2/M5. 12. 25. X8770 X8600 X8830 SPORTS EAC. 2. We send herewith N. scheme 2099. shewing a suggestion for carrying the spare wheel at the rear of the above… | ||
| Scan131 | Scheme 201 regarding a single-point lubrication experiment for the front axle. | ||
| View original record | TO BY FROM DA. Copy to - OG (crossed out) HS. ORIGINAL DA3/M5.12.25. EAC. 7. FRONT AXLE. X7420 We send herewith N. scheme 201. shewing the method of applying single point lubrication to the components… | ||
| Scan132 | Braking distance test results for a Phantom vehicle in defence of a dangerous driving charge. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM DA. Handwritten: X8470 ORIGINAL DA4/M5.12.25. Handwritten: X788 X718 X8470 Mr. Minchin has obtained some figures, timed by one of the… | ||
| Scan133 | Plans to lighten an engine for a chassis by changing parts, rather than a full redesign. | ||
| View original record | TO BY. FROM R. Copy to OJ. HS. ORIGINAL R3/M8.12.25. EAC. 7. & 8. X7770 X7840 X8240 X.200 One of these chassis will have a lightened engine. I have arranged with E. that we do not attempt to redesign… | ||
| Scan134 | Revised list of proposed alterations for reducing the weight of the Phantom engine. | ||
| View original record | ORIGINAL TO . FROM E. C. to . HS. re. REDUCING WEIGHT OF PHANTOM ENGINE. E1/M9.12.25. x8840 x8770 With further reference to our memo. E1/M211125., Mr. Royce has decided to revise the policy laid down… | ||
| Scan135 | Weight reduction and material substitution for engine components, particularly for a lighter experimental Phantom engine. | ||
| View original record | (2) (16) SEE WHAT FURTHER WEIGHT CAN BE REMOVED FROM FLYWHEEL AND CLUTCH. (17) SEE WHAT ADDITIONAL WEIGHT CAN BE REMOVED FROM CRANKSHAFT BY BORING OUT THE PINS TO A LARGER DIAMETER. With regard to… | ||
| Scan136 | New scheme for a sheet metal front cross member and radiator suspension. | ||
| View original record | ORIGINAL TO DY: FROM DA. Copy to - GJ. HS. DA3/M10.12.25. EAC. 7. - FRONT CROSS MEMBER, RADIATOR SUSPENSION, ETC. Y7380 Y7250 We send herewith N. scheme 2103., shewing the sheet metal cross member,… | ||
| Scan137 | Potential developments for the Phantom chassis experimental work, covering steering, shock absorbers, bonnets, and the petrol feed system. | ||
| View original record | R. R. 235A (100 T) (S. H. 159. 11-8-20) G. 2800 TO HS. FROM R. Copy ORIGINAL PHANTOM CHASSIS EXPERIMENTAL WORK. X8770 X2917 There are a few things that might be crossed off the experimental list - (1)… | ||
| Scan138 | Court case won by Mr. Minchin concerning vehicle stopping distances and brake quality. | ||
| View original record | ORIGINAL TO HS. FROM DA. DA1/M10.12.25. X788 [crossed out] X8420 X718 With further reference to Mr.Minchin's stopping distances, he tells us that he won his case, the defence being that the brakes… | ||
| Scan139 | Potential design improvement for wheel carriers on the Phantom model in France. | ||
| View original record | TO HS. FROM R. ORIGINAL R2/M10.12.25. C. to DA. BY. re. PHANTOM IN FRANCE. 48940a 48600 It would seem that in any freshly designed wheel carriers, it would be better to avoid tapping the bolt into the… | ||
| Scan140 | Axle design modifications, specifically pivot placement and toe-in, to address high-speed steering wobble. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. HIGH SPEED STEERING WOBBLES. [Handwritten]: x457 78420 [alongside a struck-through number: +8430] With reference to HS/RM1/LG81225., it… | ||
| Scan141 | Testing procedures for the Falcon engine without a supercharger and modifications to the timing gear drive. | ||
| View original record | ORIGINAL TO EG. FROM E. Copy to - HS. E3/M11.12.25. re. RR. F.10. X3804 4550 With regard to testing the Falcon engine, would you kindly note that memo. E2/M11225., also applies to the Falcon, that is… | ||
| Scan142 | Modifications to the Falcon 10 engine's water pipes and magneto driving gear. | ||
| View original record | TO. RG. (struck through) FROM E. Copy to - CL (struck through) " DY (struck through) " HS. RR. F.10. X3836 ORIGINAL E1/M11.12.25. In reply to your memo. RG3/W91225., we return here-with blue print… | ||
| Scan143 | Instructions for testing the RR. E.16 engine without its supercharger, proposing the use of simple carburetters and addressing potential timing gear vibrations. | ||
| View original record | [Struck through: COPY] FROM E. Copy to - [Struck through: SL] " [Struck through: EC] " HS. ORIGINAL RR. E. 16. X4114/X4550 /X3820 With regard to testing RR. E.16. would you kindly note Mr. Royce… | ||
| Scan144 | Modifications for the India gearbox and floorboard clearance. | ||
| View original record | TO R.X. [crossed out] FROM AJS. Copy to - HS. ORIGINAL INDIA GEARBOX AND FLOORBOARD CLEARANCE. X5310 Since writing our memo. AJS1/M141225. dealing with the above, this matter has been taken up with R.… | ||
| Scan145 | Finding a suitable thrust bearing, comparing the 'New Departure' type favorably against the 'Curtiss' model. | ||
| View original record | FROM R. C. to HS. THRUST BEARINGS. [Handwritten, struck through] X3159 [Handwritten, struck through] X3829 [Handwritten, struck through] X3366 We have evidently found a good thrust bearing in the… | ||
| Scan146 | Proposing and comparing schemes to improve carburation by managing the temperature of water or air supplied to the engine. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. [Handwritten and struck through: Copy to Mr Olley & Mr Platford Mr Claremont] re. CARBURATION. [Handwritten: X766 X8080 X8230] I have… | ||
| Scan147 | Properties and potential applications of Firth's Staybright steel. | ||
| View original record | TO BY. FROM R. Copy to - DJ. " HS. FIRTH'S STAYBRIGHT STEEL. Mr. Hatfield sent me a pamphlet on the above. In addition to my previous memo. E. says:- " One of the most interesting points disclosed by… | ||
| Scan148 | Revisions, material specifications, and strength tests for spherical seated unions for standardization. | ||
| View original record | TO - BY. (struck through) FROM E. Copy to - CL (struck through) " " RC (struck through) " " HS. ORIGINAL E2/M19.12.25. Handwritten: X2170 X8180 X4111 X8190 SPHERICAL SEATED UNIONS. We send you… | ||
| Scan149 | The front axle, referencing scheme 2102 and drawing N. scheme 2094. | ||
| View original record | ORIGINAL. DA5/M19.12.25. TO BY. FROM DA. Copy to - SJ. HS. EAC. 7. FRONT AXLE. X7420 X7430 We send herewith N. scheme 2102. which we had prepared when the elliptical section was being worked on, but… | ||
| Scan150 | Modifications to the front axle, including the steering levers and bolts. | ||
| View original record | TO DY. FROM DA. Copy to - CJ HS. ORIGINAL DA4/M19.12.25. EAC. 7. FRONT AXLE. X7420 X7430 We send herewith N. scheme 2109. shewing the forging for the front axle, and also the modification to the… | ||
| Scan151 | Failure of a luggage carrier during a 10,000-mile trial and proposing an improved, drop-forged design. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. R7/M21.12.25. Copy to ~~OJ.~~ ~~BY.~~ re. LUGGAGE CARRIER. X8400 We are sorry to hear that the luggage carrier broke on the 10,000… | ||
| Scan152 | Outlining concerns about a new chassis underframe and recommending a cautious, experimental approach. | ||
| View original record | ORIGINAL. R1/M21.12.25. TO DJ. FROM R. Copy to - SJ. BH. EH. HS. CHASSIS UNDERFRAME. X 8380 Y 5380 Personally I do not know enough about this to be able to recommend our making them universally, and I… | ||
| Scan153 | Delay in licensing for a 20HP car and parts for chassis 46-PK. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2600 ORIGINAL. E1/M22.12.25. TO HS. FROM E. Copy to DA/EV. re. CAR AT WW. X677 X8770 No doubt you have in mind the licencing of the 20HP., at WW. for 1926. We… | ||
| Scan154 | Preferred steering lever design for the front axle. | ||
| View original record | TO BY. FROM DA. (BY. is struck through) Copy to - OO. HS. (OO. is struck through) ORIGINAL. DA2/M22.12.25. EAC. 7. FRONT AXLE. X7420 We send herewith N.scheme 2111., shewing a side steering lever with… | ||
| Scan155 | Revising the frame side member to accommodate a 66 inch rear spring. | ||
| View original record | TO RY. FROM DA. Copy to - CL. HS. ORIGINAL. DA1/M22.12.25. EAC. 7. FRAME SIDE MEMBER. X7380 Herewith we send N. scheme 2104. shewing the frame side member revised for a 66" rear spring, in accordance… | ||
| Scan156 | Two design schemes, N. scheme 2112 (sheet metal pressing) and N. scheme 2113 (forging), for a new front suspension arm. | ||
| View original record | TO ~~BY~~ FROM DA. Copy to - ~~CJ.~~ HS. ORIGINAL DA3/M23.12.25. EAC.7. ENGINE SUSPENSION. X7005 Herewith we send N. scheme 2112. shewing a new form of front suspension arm made of a sheet metal… | ||
| Scan157 | Standardisation and modifications for a battery ignition distributor head and base. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM E. ORIGINAL E1/M23.12.25. Copy to R. BATTERY IGNITION. X8691 Re. standardisation sheet X.No.8691. for modified distributor head and base to… | ||
| Scan158 | Positioning of the starting handle and Mr. Royce's preference for improving the electric starter. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DA2/M23.12.25. STARTING HANDLE. X8270 Referring to BJ7/H171225., which you have sent on to us, we have recently discussed this… | ||
| Scan159 | Design and lubrication method for a Kennedy Spring model provided by its inventor. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM E. Copy to OJ.DA. ORIGINAL. E2/M24.12.25. re. KENNEDY SPRING. K3873 K2628 We are sending you a model of the above which has been lent to us by… | ||
| Scan160 | Modifications to a spare wheel carrier to overcome difficulties arising from the use of a 36' frame. | ||
| View original record | TO BY. FROM DA. Copy to HS. ORIGINAL. SPORTS EAC.II, SPARE WHEEL CARRIER. X8600 We send herewith N.scheme 2105. shewing the modifications to the spare wheel carrier which we propose to overcome the… | ||
| Scan161 | Fitting EAC 7 & 8 chassis with the latest type flexible skirt pistons. | ||
| View original record | ORIGINAL E4/M30.12.25. TO HS. FROM E. Copy to [text struck through] re. EAC. 7. & 8. PISTONS. X7040 Please note Mr. Royce would like EAC. 7. and 8. chassis to be fitted with the latest type flexible… | ||
| Scan162 | Modifications to the New Phantom starter drive, including a revised reduction ratio. | ||
| View original record | TO BY. FROM AJS. ORIGINAL Copy to HS. AJS1/M30.12.25. X8640 NEW PHANTOM STARTER DRIVE (MOTOR ON ENGINE.) We send herewith drawing LeC. 2187. shewing a 22 to 1 overall reduction ratio in place of the… | ||
| Scan163 | Patentability of the Kennedy Spring and the issues of using brass interleaves. | ||
| View original record | TO F. FROM DA. C. to - CL. HS. DA3/M31.12.25. Y3873 X7678 re. KENNEDY SPRING. Thank you for passing on the model of the above spring to me. It is very doubtful whether this idea is patent-able, though… | ||