Rolls-Royce Archives
| Identifier | Entry | ||
| 03-page001 | Design scheme for the 20 HP brake gear. | ||
| View original record | R.R. LTD., DERBY. T/COPY. 129, M & P. CO. 1044. To Ds. from E. c. to CJ. c. to En. c. to RH. c. to EFC. E2/G1.8.19. THE 20 H.P. BRAKE GEAR X.3565. Referring again to the work on the 20 H.P. back axle,… | ||
| 03-page002 | Confirming receipt of brake drums, Bakalite pieces, and lamp holders from various suppliers. | ||
| View original record | X 3568 Mr. Clark. from O.O. Wd/Dn10/HP291019. 29th Oct. 1919. Please note that we have received from Messrs Thos. Firth & Sons., 12 Brake Drums N.1258 for experiment 3568, 20 H.P. stores sheet 169938… | ||
| 03-page003 | Scheme for the brake gear of the Goshawk. | ||
| View original record | X 8568 R.R.239. 100 7-30. P.&S.(E.D.1065) To Da. from R. Copy to CJ. " En. " Hs. " CK? R1/G10.2.20. X.3568. - RE BRAKE GEAR - GOSHAWK. Referring to the brake gear of the goshawk, it will be found that… | ||
| 03-page004 | Letter discussing the design and layout of the Goshawk brake gear, mentioning delays and forwarding previous schemes for review. | ||
| View original record | Copy to OK X.3548 X 3548 DAZ/CH16-2-30. RE BRAKE GEAR - GOSHAWK. ------------------------- With reference to your M/C10-2-20 we had done some work on this brake gear last September but had to put it… | ||
| 03-page005 | Discussion of various design schemes for brake, clutch, axle, and differential gear arrangements. | ||
| View original record | -2-2 opposite the end of the rear springs, but it is possible this might be merely a guide with the cable running the whole length and some means of adjustment on first assembly provided. "N" Scheme… | ||
| 03-page006 | Differential gear designs, comparing a driven outer case with a free aluminium casting, and proposals for brake differentials. | ||
| View original record | -2- from a differential gear in which the outer case is driven as shown on "N" Scheme 138, and one similar to the existing 40/50 in which the outer case is a free aluminium casting. We had schemed the… | ||
| 03-page007 | Modifications to the brake gear and pedal mechanism for the 'Goshawk' engine, with reference to the 'Buzzard' and 'Vulture' designs. | ||
| View original record | X.3575 To Da. from E. Copy to CJ. " " Bn. " " Ha. " " Ck. E4/G23.2.20. X.3569: RE BRAKE GEAR - "GOSHAWK". In reply to your recent memo concerning the above, would you kindly note that Mr. Royce has… | ||
| 03-page008 | Mr. Royce's feedback and requested modifications for several vehicle components. | ||
| View original record | To Hs. Ds. & By. -7- E1/G18.5.20. Contd. Clutch.- Pressure Member. X.3525. This piece, owing to its deep recesses, was not considered by Mr. Royce to be practical as a stamping, and he wishes it to be… | ||
| 03-page009 | Specifications for a new small chassis design, including details on the gearbox, back axle, and suspension. | ||
| View original record | X4217 To C.J. from R. R4/B17.11.20. X.4219. RE SMALL R.R. CHASSIS. X.4247. Three speed gear box carried on rear of engine. (Gear box will be similar to Goshawk, but modified for three speeds). X.4252.… | ||
| 03-page010 | New drawing for the 'Goshawk' brake gear mechanism due to difficulties with the actuating shafts. | ||
| View original record | To Da. from E. c. to CJ. c. to Wor. c. to HS. c. to By. c. to EPC. X.3568. RE "GOSHAWK" BRAKE GEAR. We send you herewith drawing LeC.1321 showing the Brake Mechanism carried on the "Goshawk" back… | ||
| 03-page011 | Revised brake actuating gear for the 'Goshawk' model, referencing accompanying blueprints. | ||
| View original record | To HY From DA. Copy to HS (1 print). Copy to tb (1 print). Copy to HHC (1 print). Copy to RFC. X 8568 DAG/CB20-12-20. Re "Goshawk" Brake Gear. Please receive herewith two blue prints of Led.1321… | ||
| 03-page012 | The new detail schemes for the Goshawk model's brake gear and a modification to the change-speed lever trough. | ||
| View original record | W. & S. 50M.-10-20. (N). J.H.L. 114.-NO. D. 8320. X 9578 Copy from DA. Copy to BM. Copy to EFC. DA2/CB20-12-20. RE "GOSHAWK" BRAKE GEAR. We are making the new detail schemes of the brake gear in… | ||
| 03-page013 | Various design schemes for adapting the Goshawk rear axle brake gear. | ||
| View original record | TO R from DA. copy to BH. copy to EFC. E.F.C X428 RECEIVED DEC 19 1929 X.8358 X.428Y DA3/CB24-12-20. Goshawk Rear Axle Palm Gear. -------------------------- We send herewith a print of "N" Scheme 705… | ||
| 03-page014 | Note on providing extra motion for a worn brake lever by reducing the length of serrated sections. | ||
| View original record | DA3/CB24-12-20.contd. allow for extra motion of the brake lever when the brake is worn a little, but it appears to be easy to provide this by reducing the length of the serrated sections. DA. | ||
| 03-page015 | Comparison between 'Goshawk I' and 'Goshawk II' brake gear schemes. | ||
| View original record | To D.A. from R. Copy to C.J. E.F.C. COPY X3540 R7/G30. 12. 20. X3540. RE "GOSHAWK" BRAKE GEAR. X4287. With reference to your memo DA2/CS20. 12. 20 regarding the above, we want to make this as perfect… | ||
| 03-page016 | Adaptation of Goshawk rear axle brake gear for the 'Kite' model. | ||
| View original record | To R from DA. Copy to BH. Copy to EFC. X4234 DAL/CB30-12-20. X 4234 "Kite" Rear Axle Brake Gear. We send herewith a print of "N" Scheme 705 shewing the adaptation of the Goshawk rear axle brake gear,… | ||
| 03-page017 | Comparing 'Goshawk I' and 'Goshawk II' brake gear systems to determine the best option for a new large chassis model. | ||
| View original record | COPY X.4257 R7/G30. 12. 20. To D.A. from R. Copy to C.J. RFC. X3558. RE "GOSHAWK" BRAKE GEAR. X4287. With reference to your memo DA2/CB20. 12. 20 regarding the above, we want to make this as perfect… | ||
| 03-page018 | Vehicle performance issues including brakes, radiator, clutch, and springing. | ||
| View original record | Contd. -3- X.4257/ R4/012.1.21. (7) BRAKES. X.3603/5/6. X.3568. X.4257. The squealing of the brakes is the make-up in the Ferodo linings. Prove this by fitting material such as Raybestos without… | ||
| 03-page019 | Technical discussion on issues related to brakes, radiator, clutch, and springing systems. | ||
| View original record | Contd. (7) BRAKES. X.3603/5/6. X.3569. X.4257. The squealing of the brakes is the make-up in the Ferodo linings. Prove this by fitting material such as Raybestos without make-up, when the resinous… | ||
| 03-page020 | The design of the brake actuating gear, including a request from Mr. Royce for a model. | ||
| View original record | 425Y To Ds. from E. c. to CJ. c. to Wor. c. to Hs. c. to EFC. E1/G15.1.21. 425Y X.3888. RE BRAKE ACTUATING GEAR. We send you herewith drawing Lec.1321 shewing the above. The brake cables instead of… | ||
| 03-page021 | Modifications to the 'Goshawk' II rear brakes and frame clearance. | ||
| View original record | To Da. from R. c. to CJ. c. to Hs. c. to EPC. X4257 R4/G15.1.21. X.4257. - RE BRAKES -) "GOSHAWK".II In addition to increasing the diameter of the rear brakes from 12" to 14", we think it will be wise… | ||
| 03-page022 | Design rationale for bolts and split-pins, and an update on a gearbox delivery. | ||
| View original record | Contd. -2- R1/G15.1.21. the bosses being then of larger diameter with a light rod coming away. This is a practice one often uses in such things as callipers, where it is desired that a joint should… | ||
| 03-page023 | Modifications to the 'Goshawk' brake gear arrangement. | ||
| View original record | X.8378 B from DA. Copy to BH. Copy to EFU. X.8378 DALO/CB18-1-21. RE "GOSHAWK" BRAKE GEAR. We send herewith a print of "N" Scheme 724 showing the Goshawk brake gear arrangement modified in accordance… | ||
| 03-page024 | Requesting an alteration to a duplicated drawing number for the 'Goshawk II' Brake Actuating Gear. | ||
| View original record | X4254 To Ds. from E. c. to CJ. c. to Wor. c. to Hs. c. to EFC. E4/G19.1.21. Y. 4257. RE LEC. 1321. We find that two different drawings have been sent through under the above number. Would you there-… | ||
| 03-page025 | List of instructions from Mr. Royce for the arrangement of the brake gear on the 'Goshawk 1' NT Scheme 724. | ||
| View original record | R.R. Bde. G/W T.R. Bk. No. 126. Folio 45 of 1927. X 8568 TO D.R. from E. c. to CJ. c. to Wor. c. to EFC. E3/G26.1.21. X 8568 RE " GOSHAWK 1" - ARRANGEMENT OF BRAKE GEAR- NT SCHEME 724. Referring to… | ||
| 03-page026 | Feedback from Mr. Royce on pedal lever design and the return of a blueprint. | ||
| View original record | contd. -2- E3/G26.1.21. (8) The pedal levers should be built up of taper tubes of oval section to eliminate the fault they at present have of being torsionally springy. MR. Royce remarks that the… | ||
| 03-page027 | Design and sending of drawings for the Goshawk I brake operating gear. | ||
| View original record | EEG JAN 31 1922 To R from DA. Copy to EH. Copy to EFC. BAL/CB29-1-21. GOSHAWK I - BRAKE OPERATING GEAR. RECEIVED We send herewith full size drawings of parts of the brake operating gear - "N" Scheme… | ||
| 03-page028 | Comparison of the strength of brake operating gear levers with those of the 40/50 model. | ||
| View original record | R.R. DRG. (NO T) C.R.H. 119A, 25-4-30 C. Wks. DA1/CB29-1-21 contd. We have compared these levers with the 40/50 of similar length and, as shown, they are of half the strength, which is in accordance… | ||
| 03-page029 | Which springs should be used and which should be left out. | ||
| View original record | The sixteen 16 driving Springs should be left out and damping Springs GB 5324+ should be used | ||
| 03-page030 | Proposed alterations by Mr. Royce to a rear axle, tube, and brake scheme. | ||
| View original record | Memo. from E. Copy to Hs Xu 25/D 10 FEB 1921 SH/S9/2/21. RECEIVED ROCHDALE AND ISSUE REAR AXLE, TUBE, BRAKE. Kindly note the following points which Mr. Royce would like altered in connection with the… | ||
| 03-page031 | Axle tube thickness, modulus drawing, and road spring attachment. | ||
| View original record | To DA. from E. -2- R5/GS/2/21 Contd. (5) The means of attaching the road spring to the axle should be as per our recent Lec. drawing dealing with this part. (6) The axle tube, Mr. Royce thinks, is on… | ||
| 03-page032 | Design change to the Goshawk 11 brake gear, deleting an adjustment on the rear axle mechanism. | ||
| View original record | Handwritten: X 4254 Ds. from E. c. to CJ. c. to CLK. E2/3.3.31. X.4257 - GOSHAWK 11 BRAKE GEAR. We send you herewith Lec.1355 showing general scheme for remainder of brake gear. It is now thought that… | ||
| 03-page033 | Five points of instruction from Mr. Royce regarding the Goshawk I brake gear. | ||
| View original record | To D. from E. c. to CJ. c. to E.C. X 3568 EL/4.3.21. X.3568 - GOSHAWK 1 BRAKE GEAR N.762 Kindly note the following remarks Mr. Royce wishes me to send concerning the above:- 1. The unsymmetrical… | ||
| 03-page034 | Mr. Royce's remarks on the 'Goshawk 11' axle tube brake and rear hub. | ||
| View original record | To Da. from E. c. to CJ c. to Wor. c. to Hs. c. to BY. c. to EFC. X4257 E2/08.3.21. X.4257 - RE "GOSHAWK 11" AXLE TUBE BRAKE, AND REAR HUB. Referring to ch.744 would you kindly note Mr. Royce's… | ||
| 03-page035 | Design specifications for brake, wheel, and axle components, including Michelin wheels and Goshawk I alterations. | ||
| View original record | E.H. 1004 (2nd) T.M.B. 748, 10-3-21. Contd. -2- E2/GS.3.21. which carry the brake shoes. (7) The smaller drilled holes in the web of the brake mounting should lie close up to the internal diameter of… | ||
| 03-page036 | Continued note on the assembly of the inner ball bearing and hub nut for the 40/50 model. | ||
| View original record | W.W. 250-(C B. 751) B. P. Ltd. 10-12-20-U. M. 5067 Contd. -3- EE/GS.3.21. (12) The inner ball bearing outer race should not be gripped by the hub nut. The hub should stand proud of the outer race and… | ||
| 03-page037 | Modifications to the Goshawk II rear axle brake rear hub, detailing changes for disc and Dunlop wire wheels. | ||
| View original record | [Stamp: RECEIVED MAR 24 1921] [Handwritten in stamp: Ha, E. L. O.] [Handwritten: from DA.] [Handwritten: x4257] DA2/CB24-3-21. RE GOSHAWK II - REAR AXLE BRAKE REAR HUB. [Handwritten: x4257] We send… | ||
| 03-page038 | Mr. Royce's required alterations to the Goshawk II rear hub and brake drum design. | ||
| View original record | To Mr. from E. Copy to Mr. Y1257 COPY E.H. / Y1257 RE 'GOSHAWK II' - REAR HUB AND BRAKE DRUM. Referring to your scheme N.809, Mr. Royce would like the following points altered and for you to proceed… | ||
| 03-page039 | Blueprints for the Goshawk II back axle brake gear, detailing Michelin Disc and Dunlop Wire wheel arrangements. | ||
| View original record | To EY from DA. c. to HS. c. to IB (1 print). c. to HWC (1 print). X4257 GOSHAWK II BACK AXLE BRAKE GEAR. Please receive herewith three blue prints of "N" Scheme 809 and "N" Scheme 810 shewing… | ||
| 03-page040 | Three potential wheel types for the Goshawk 11 model and subsequent commercial enquiries. | ||
| View original record | X.4257 Hs. from BY. c. to Mr. Booth. BY7/P12.7.21. X.15. GOSHAWK 11. FRONT AXLE, REAR HUB AND BRAKE. X.4257 X.3482 Re TYPE OF WHEELS. X.4253 When I pressed Mr. Royce for a decision as to which type of… | ||
| 03-page041 | Specifying that the ordered Michelin wheels must be suitable for straight-sided tyres. | ||
| View original record | X.4257 To Ms. c. to RHC. c. to EPC. c. to Sft. c. to TB. c. to Da. c. to BY. BY/HEB2/W14.7.21. X.4263 - GOSHAWK 11 CHASSIS. X.4257 - REAR AND FRONT HUBS SEC: 7040. 6170. Further to our memo.… | ||
| 03-page042 | Choice of tyres and wheels for the Goshawk 11 chassis. | ||
| View original record | Hs. from BY. X4257 BY6/P15.8.21. X.987. GOSHAWK 11. X.4263 FRONT AXLE. REAR HUB & BRAKE. X.4257. I would like to remind you of my conversation with you before the holidays, in which I pointed out that… | ||
| 03-page043 | Material for Goshawk 11 rear brake drums, detailing issues with soft mild steel and proposing a new steel with higher carbon content. | ||
| View original record | X4257 Wd. from BY. c. Hs. X2457 (Strikethrough) X3409 (Strikethrough) GOSHAWK 11. REAR HUB & BRAKE. RE MATERIAL FOR BRAKE DRUMS. The mild steel brake drums which we have received are too soft, the… | ||
| 03-page044 | Recommendation to manufacture aluminium covers for rear brakes in one non-detachable piece. | ||
| View original record | X4257 To R. from Hs. c. to GJ. c. to E. c. to Da. c. to BY. c. to EP. c. to Wor. Hs2/LG18.10.21. GOSHAWK 11. X.4219. X.4257 ALUMINIUM COVERS FOR REAR BRAKES. We recommend that the aluminium covers for… | ||
| 03-page045 | Alternative thrust bearing design for Goshawk 11 and an oil leak from the axle pinion shaft. | ||
| View original record | X4257 To H. from Hs. c. to CJ. c; to E. c. to Bl. c. to Du. c. to EF. c. to Wor. Hs4/LG31.10.21. GOSHAWK 11. X.4257 X4219 THRUST BEARINGS. We assume that we shall receive from W.W. an alternative… | ||
| 03-page046 | Ongoing issues with the Goshawk II chassis regarding brakes, water loss, oil filtration, and over-oiling. | ||
| View original record | X4257 To E. from Hs. c. to CJ. c. to De. c. to BY. c. to EP. c. to HY. c. to Wor. Hal/LGi2.1.22. GOSHAWK 11. There are one or two points in connection with this chassis which we have still to get… | ||
| 03-page047 | Clutch experiments comparing Ferodo bonded asbestos against Ferobestos. | ||
| View original record | Contd:- -2- V4244 Hal/LG12.1.22. CLUTCH. We have tried some of the experiments instructed for the clutch. We have not found anything better than the standard clutch with Ferodo bonded asbestos in… | ||
| 03-page048 | Clarifying production instructions for the Goshawk 11 and Rear Axle, Hub & Brake components. | ||
| View original record | Mr. D'Aeth from EY. c. to Hs. X.4257 SY5/F17.1.22. X.4256 GOSHAWK 11. X.4257 REAR AXLE, REAR HUB & BRAKE. It should be noted that in issuing for production to the chart which has been circulated by… | ||
| 03-page049 | Causes and solutions for brake wear, squeaking, and compensating shaft flexibility issues. | ||
| View original record | X4257 To Hs } from R. To Da. } c. to CJ. c. to Wor. c. to FN. c. to KP. c. to HY. c. to E. c. to Hy. R2/109/1.22. BRAKES (GOSHAWK) AND GENERAL X.4257. X.4259 Wear of the brake drums may be due to… | ||
| 03-page050 | Continued memo discussing alterations to brake levers, wire rope travel, and a squeak issue. | ||
| View original record | contd:- -2- be used through 1 1/4 times the angle - see Goshawk 1.) In altering the levers, as pointed out to Da., the back axle levers should be allowed also the same amount. This will result in wire… | ||
| 03-page051 | Troubleshooting brake squeaking, drum scoring and wearing on the Goshawk 11 model. | ||
| View original record | To E. from Hs. c. to CJ. c. to Da. c. to BY. c. to EP. c. to Wor. X4257 GOSHAWK 11. BRAKES. X.4257 Hs1/LG25.1.22. We believe we shall most probably find when we have overcome the trouble of the brake… | ||
| 03-page052 | Goshawk II brakes, recommending countersinking rivets for aluminium brake straps to prevent heat transfer and failure. | ||
| View original record | To E. from Hs. c. to CJ. c. to De. c. to EY. c. to EP. c. to Wor. X425Y HsS/LG24. 2. 22. GOSHAWK II. BRAKES. V425Y X4245 We find that when we use the aluminium brake straps, we should countersink the… | ||
| 03-page053 | Brake squeaks and clutch issues on a Goshawk-II 10,000 miles test car. | ||
| View original record | Hy. from EP. X4257 EP3/LG31.3.22. 5-GOSHAWK-II. 10,000 MILES TEST CAR. X4257 X4076 We have not yet been able to do anything with regard to the brake squeaks but it is a fact that with your car the… | ||
| 03-page054 | Proposal with drawing No. LeC.1558 to prevent the brake lever button from rattling on the Goshawk. | ||
| View original record | Ds. from E. c. to CJ. c. to Wor. c. to BY. c. to Hs. X4257 E2/M27.4.22. MADE AT CREWE GOSHAWK-11 BRAKE LEVER BUTTON. X.4257 We send you herewith drawing No. LeC.1558 shewing our proposal for… | ||
| 03-page055 | The flange diameter on Goshawk 11 brake drums. | ||
| View original record | X4257 (EP) From BY. BY1-P5.4.23. GOSHAWK 11. REAR HUB & BRAKE. With reference to the diameter of the flange on Goshawk 11 Brake Drums, we obtained these on the large side in order to permit of the… | ||
| 03-page056 | Two proposed designs for an improved joint on the Goshawk engine's brake tables. | ||
| View original record | X.4257. To BY. from Ba. c. to CJ. c. to Wor. c. to Hs. De4/MS.5.228 GOSHAWK 11. BRAKE CONNECTIONS. X.4257. We send herewith M.sch.1269 shewing the proposed improved joint on the brake tables. Of the 2… | ||
| 03-page057 | Proposals to resolve squeaking brakes and suggesting modifications to brake levers and joints. | ||
| View original record | To BY. from Da. c. to CJ. c. to Wor. c. to HS. X.4257. Da7/110.5.22. GOSHAWK 11. SQUEAKING BRAKES ETC. X.4257. We send herewith M.sch.1271 shewing proposals for damping out the brake squeaks. That… | ||
| 03-page058 | To hold drilling on Goshawk II brake shoes and straps due to considering a different type of rivet. | ||
| View original record | Fwd. from BY. c. M.I. c. Hs. c. M D'Arth. X4257 RECEIVED HS 18 MAY 1922 BYS-F15.5.22. GOSHAWK ll. BRAKE SHOE. G.50884, and BRAKE STRAPS G.50885/6. Owing to the fact that we are considering using a… | ||
| 03-page059 | Reduction of rivets for Goshawk 11 rear brake shoes and considering alternative Raybestos linings. | ||
| View original record | hs. from Da. X.4257. Pal/H/17.5.22. GOSHAWK 11. REAR BRAKE SHOES. X.4257. Replying to yours of the 15th..inst., re the riveting of the ferodo to the aluminium brake shoes, I certainly agree to using… | ||
| 03-page060 | Preferred arrangement for the Goshawk II rear brake drum damper and mud fling. | ||
| View original record | To EY. from Da. c. to CJ. c. to Wor. c. to Hs. X.4257. De4/1/19.5.22. RE. GOSHAWK II. REAR BRAKES. X.4257. We send herewith N.sch.1276 shewing the arrangement of brake drum damper and mud fling, which… | ||
| 03-page061 | The design of Goshawk II rear brake cables, specifying a non-rotating bush for the jaw end. | ||
| View original record | To EY. from Da. c. to CJ. c. to Wor. c. to Hs. X.4257. Da2/120.8.22. GOSHAWK II. REAR BRAKE CABLES X.4257. We send herewith M.sch.1281 shewing the type of jaw end to the brake cables which Mr. Royce… | ||
| 03-page062 | Outlining Mr. Royce's requested modifications to the Goshawk 11 brake lever press button to prevent rattling and improve construction. | ||
| View original record | X.4257 To Da. from E. c. to CJ. Wor. c. to BY. Hs. c. to EP. E1/M20.5.22. GOSHAWK 11. BRAKE LEVER PRESS BUTTON. X.4257. We send you herewith drawing NO.LeC.1565 shewing how Mr. Royce would like the… | ||
| 03-page063 | Faults and proposed modifications for Goshawk model aluminium brake shoes, addressing cracking and seizing. | ||
| View original record | To H. from Hs. c. to G. c. to P. c. to De. c. to BY. X4257 Hs3/L028.6.22. GOSHAWK BRAKES. X4257 We have had several cases of the aluminium brake shoes cracking. In each instance the rivets have been… | ||
| 03-page064 | Response to a report on ineffective brakes and an oil leak from the rear hubs of a Goshawk vehicle. | ||
| View original record | Wa. Paris from Hs. X4257 Hs3/LG12. 8.22. GOSHAWK-11. X4257 Y4086 In Major Northey's report he complains that the brakes were not effective and also that oil was running out of the rear hubs. We think… | ||
| 03-page065 | Seized hand brake compensating gear on a 6-Goshawk-II, with Mr. Royce's suggestion for a design modification. | ||
| View original record | X.4257. To Hs. from Da. c. to EY. Da2/4/29.8.22. X.4257. We found the compensating gear on the hand brake on 6-Goshawk-ll stuck up this afternoon. It was the left hand side, and the effect was to hold… | ||
| 03-page066 | Telegram received by telephone requesting four replacement wheel hubs. | ||
| View original record | Printed Text: R.R. 144 (10M.) S.E.Co. 4/21 MP 10871 Printed Reference: X4257 ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. THIS SHEET MUST BE FILED. Handwritten Text: Top Right Reference:… | ||
| 03-page067 | From CJ to Hs. regarding the Goshawk, requesting information and attaching a copy of a memo sent to R. | ||
| View original record | K5940 To Hs. from CJ. Goshawk. CJ5/E18/10/22 I attach herewith copy of memorandum sent to R. Can you give me the information so far as you are able to? CJ. Enc. Copy of CJ4/E18/10/22 [STAMP] RECEIVED… | ||
| 03-page068 | Letter from C.J. to R. discussing market opinion in Paris on fitting the 20 HP car with front-wheel brakes. | ||
| View original record | To R. from C.J. Copy to Hs. Copy to Dr. Goshawk. My dear R., I have heard an expression of opinion in Paris that the 20 HP R.R. car will not sell there freely unless it be fitted with front wheel… | ||
| 03-page069 | Follow-up letter requesting designs for a generator drive brake and a bonnet fastener. | ||
| View original record | E. from Hs. X4287 GOSHAWK. X4241 / X4257 Hs1/LG1.11.22. With reference to the points raised during my recent visit to W.W. We are assuming that we shall shortly receive from you a design for a Brake… | ||
| 03-page070 | Design of front wheel brakes for the Goshawk 11. | ||
| View original record | X5940 To BY. from Da. c. to CJ. c. to Wor. c. to HS. Da2/101.11.22. GOSHAWK 11. FRONT WHEEL BRAKES X.44887 We send herewith N.sch.1344 shewing the modified front axle fitted with front wheel brakes.… | ||
| 03-page071 | Front spring modifications related to steering and front wheel brakes, specifically for a Goshawk model. | ||
| View original record | To Hs. from R. c. to Da. c. tto EY. X5940 R8/M23.10.22. STEERING & FRONT WHEEL BRAKES X.4425. XP2628. X4261 X5940 In conjunction with steering and front wheel brakes we seem obliged to do one of two… | ||
| 03-page072 | Calculation of the effect of wheel rotation on braking, comparing translational and rotational kinetic energy. | ||
| View original record | X4257 28.12.22. EFFECT OF WHEEL ROTATION ON BREAKING. GII (No account taken of brake drums.) Kinetic Energy of translation of car at 60 m.p.h. .= 1/2 m v^2 / g ft. lbs. m = 4000 lbs, v = 88f.p.s. g =… | ||
| 03-page073 | Part changes and replacements for the Goshawk I rear axle and hub. | ||
| View original record | To RIC. c. to Wd. c. to EFC. X4257 2 BY/TWD/GSQ.1.23. X.3493 "GOSHAWK 1" REAR AXLE SECTION NO.6120. REAR HUB SECTION NO.6170. X4257 Please receive herewith 1 blue print of each of the following :-… | ||
| 03-page074 | Faults on a 20 HP Open Demonstration Car (40GS), including dynamo rattle, squeaking brakes, and a boom at 30 mph. | ||
| View original record | X4257 To FN. from Hs. c. to BJ. c. to EP. Hs3/LO2.2.23. RE. 20 HP. OPEN DEMONSTRATION CAR, 40GS. x4545 We have passed your memo. ref. FN2/RH31.1.23 re. the above, on to EP. as they are matters which… | ||
| 03-page075 | Cause and potential modification for whistling carburetters and noisy brake levers on the 20 HP chassis. | ||
| View original record | To EP. from Hs. X.4257. c. to BJ. c. to BY. c. to PN. c. to C. c. to Sg. Hs4/LG6.3.23. 20 HP. CHASSIS. WHISTLING IN CARBURETTER X.4228. NOISY BRAKE LEVERS X.4257. As you are aware, the most frequent… | ||
| 03-page076 | Proposal for a modification scheme for brake levers and a system for their exchange on experimental cars. | ||
| View original record | contd :- -2- As regards the brake levers, we are now trying a scheme on the experimental cars and if successful it will mean that we can alter the brake levers at a very little cost but it will be… | ||
| 03-page077 | Complaints of rattling brake levers on 20 HP cars and the assurance of a silent replacement. | ||
| View original record | To Mr. [REDACTED] from B.J. Copies to [REDACTED] -> Mr. [REDACTED] X4257 RJ14/Hx1.6.Cw. BRAKE LEVERS ON 20 H.P. CARS. X4257 You will remember that we had complaints of rattles of brake levers which we… | ||
| 03-page078 | Brake issues caused by over-oiling the back axle on a 20 HP car. | ||
| View original record | X4257 To Hs. & EP. from R. c. to CJ. BJ. c. to PN. BY. RS/M16.7.23. RE. 20 HP. X4256 X4257 Mr. PN. told me that frequently the brakes on this car are spoilt by over-oiling the back axle, and suggested… | ||
| 03-page079 | Complaint from a visiting Inspector regarding squeaking brakes on a 20 HP car. | ||
| View original record | Hs. X.4257 EP/Tnn/h17.7.23. X.4257 X.4259 We have received a complaint from our visiting Inspector, Mr. Chichester, with regard to 20 HP. car squeaking brakes. He reports that the foot brake portion… | ||
| 03-page080 | Instruction to immediately order .6 carbon steel brake drums for the 20 HP chassis. | ||
| View original record | c. to Hs. XU257 Ry/Cl/DB.27.7.23. RE 20 HP CHASSIS - REAR BRAKE DRUMS. Please note that Brake Drums in .6 carbon steel should be ordered immediately, and that CJ has agreed that no standardisation… | ||
| 03-page081 | Material specification and cost change for 20 HP Brake Drum Pressings. | ||
| View original record | BY. from ROY. c. to Hor. c. to HS. X4257 ROY9/1010.8.23 4257 As discussed just before the Holiday, Messrs. Braime are proceeding with the manufacture of 20 HP. Brake Drum Pressings for Chassis 751 and… | ||
| 03-page082 | Gearbox design and production strategy for the Goshawk model, focusing on side levers and 4-wheel brakes. | ||
| View original record | VS940 To CJ. from H. c. to BJ. RG. c. to Wor. BY. c. to RS. R5/M1 6.10.23. RE. GOSHAWK. X.1669 GEARBOX FOR SIDE LEVERS AND 4-WHEEL BRAKES. X.4247 VS940 Referring to your memo, regarding four wheel… | ||
| 03-page083 | 20 HP chassis brakes, addressing issues of squeaking, drum wear, and the proposed introduction of 4-wheel brakes. | ||
| View original record | X5940 BJ. from Hs. Hs4/LG6.11.23. 20 HP. CHASSIS BRAKES. BJ6/H5.11.23. In reply to the above :- (1) With reference to squeaking brakes. This trouble is being thoroughly gone into. We have been working… | ||
| 03-page084 | Weaknesses in the 20 HP brakes, specifically squeaking and excessive drum wear. | ||
| View original record | contd:- -2- considerably reduce the wear. With regard to the suggestion of using cast iron drum liners. We do not believe this idea will be accepted by R. We do not believe they are necessary. We also… | ||
| 03-page085 | Coachwork modifications for the conversion to four-wheel brakes on 40/50 and Goshawk models. | ||
| View original record | To LHS, from DA/EV. c. to HY. c. to HS. DA/EV2/M8.11.23. RE. FOUR WHEEL BRAKES. X.9940 40/50 AND GOSHAWK. X.1559. X5940 We are in some doubt as to how the conversion of cars delivered after the 1st.… | ||
| 03-page086 | Instruction to halt work on front wheel brakes but to design the new gearbox to accommodate a servo later. | ||
| View original record | X.1888 V5940 R1/10.1.24. Extract from :- R1/10.1.24. W. COSHAWKS. X.4219. FRONT WHEEL BRAKES. Mr. Johnson says these are not wanted at present, so that no work should be done upon them. However it… | ||
| 03-page087 | Policy on fitting 4-wheel brakes, side levers, and a 4-speed gearbox to the Goshawk model. | ||
| View original record | V5940 To R. from CJ. c. to Hs. c. to Rg. c. to E. c. to Da. c. to Nor. c. to BY. c. to EP. c. to PN. re Goshawk. I note that in a recent memorandum you expressed your view that 4 wheel brakes on the… | ||
| 03-page088 | Balancing rear brake drums and hubs for the 20-HP car. | ||
| View original record | V4257 c. Mr. [REDACTED] [REDACTED] EP6/H30.1.24. re. 20-HP. Balance of Rear Brake Drums & Hubs. Although every care is now being given to the correct balance of wheels and tyres on the 20-HP car,… | ||
| 03-page089 | The Goshawk frame and widening of the track to accommodate 4-wheel brakes. | ||
| View original record | x5940 To CJ. from R. c. to BJ. PN. C. c. to H. BA. HS. c. to SY. RE. GOSHAWK FRAME AND WIDENING OF TRACK. In fitting 4-wheel brakes to this chassis it is intended to widen the track 2", partly on… | ||
| 03-page090 | Inquiry regarding the machining status of brake drums for chassis 56-S-5 due to excessive wear. | ||
| View original record | X4754 EP/CEP21/H18.8.24. re. Chassis 56-S-5. Excessive Wear on Brake Drums. Further to our EP/CEP30/H9.7.24, will you kindly let us know by return if the pair of brake drums handed to you by BY. ex… | ||
| 03-page091 | Suggestions for testing and repairing 20 HP Chassis brake drums. | ||
| View original record | 44257 Hs. BY2/H. 21. 10. 24. 20 HP. CHASSIS. BRAKE DRUMS. We have made two or three suggestions in the above connection - 1. That you should try a drum at varying thicknesses in order to find out… | ||
| 03-page092 | Newly escalated urgency of developing front wheel brakes for the 20 HP chassis. | ||
| View original record | X5940 Mr. D'Arcy. Mr. Poole. Mr. Skelton. C. Ha. BY2/H. 30.10.24. 20 HP. CHASSIS. FRONT WHEEL BRAKES. -------------------------------- The question of the urgency of the Front wheel Brakes is one… | ||
| 03-page093 | Design progress and dependencies for the 20 HP chassis four-wheel brake system. | ||
| View original record | (5940) c. Hs. 20 HP. CHASSIS. FRONT WHEEL BRAKES. So far as Derby are concerned, we have only got a small percentage of the necessary number of design drawings to cover the whole problem of the four… | ||
| 03-page094 | Examination of broken front springs and recommendations for improvements to the 20 HP car's suspension and brakes. | ||
| View original record | To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. EY. c. to War. T 45940 Hs3/LG27.11.24. 20 HP. X5410 X4261 We have examined the front springs on S-G-11 car which we recently brought from WW. and… | ||
| 03-page095 | Analysis of increased wear on rear brake drums following the introduction of servo-assisted, four-wheel brakes. | ||
| View original record | Contd :- -2- seriously scored rear brake drum. But since we have had the servo, we find that scored brake drums are frequent. The experimental experience is that with 4-wheel brakes, even when used… | ||
| 03-page096 | Increasing the 20 HP track width to accommodate wider rear brake drums and the impact of driver braking habits. | ||
| View original record | To DA. HS. } FROM R. C. to CJ. BJ. BY. X5940 20 HP. TRACK. RS/1429.11.24. X.5940 X.4259 Increasing the width of the track on the 20 HP. would give you an opportunity of increasing the width of the… | ||
| 03-page097 | Scheme using dampers to resolve squeaking brakes on 20 HP cars. | ||
| View original record | R.R. 497A. (900) (O.B. 17) 29-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X4257 REF. Hs1/LG20.1.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. HY. c. to Wor. 20 HP. SQUEAKING BRAKES. We have… | ||
| 03-page098 | Arrangement of a rear brake damper with a modified dust cover for Chassis II. | ||
| View original record | ARRGT OF REAR BRAKE DAMPER CHASSIS II SECTION THRO B.B. SECTION THRO A.A. MODIFIED DUST COVER 18 JAN. EX-135 | ||
| 03-page099 | Proposal to order 100 sets of materials for four-wheel brakes on the 20 HP U.S.A. chassis. | ||
| View original record | Secret (5940 cc. Mr. c. Hs. BYS/H. 30. 1. 25. FOUR WHEEL BRAKES, 20 HP. CHASSIS, U.S.A. In view of the extreme urgency of the four wheel brakes from Sales' point of view, it would appear necessary for… | ||
| 03-page100 | Design and testing of front brakes, including the use of 40' springs, radius rods, and shackles. | ||
| View original record | X.5940 To DA. from R. c. to CJ. Wor. c. to E. HY. c. to Hs. S E C R E T. U. S. A. RE. FRONT BRAKES. X.5940 No doubt the 40" springs will be a great help to the control of this front axle against the… | ||
| 03-page101 | Squeaking brakes on the 20-HP chassis and requesting a new solution. | ||
| View original record | Hs. [REDACTED] X4257 EP/ThnB/H16.2.25. re. Squeaking Brakes. 20-HP Chassis. As you are aware, the only instructions which we have as yet been able to issue to the Depots in regard to the above is with… | ||
| 03-page102 | Solution for squeaking brakes on the 20-HP chassis and its distribution to depots. | ||
| View original record | c. Hs. X4257 EP/Thn12/H2.3.25. Squeaking Brakes. 20-HP Chassis. With further reference to our last memo on this subject to Hs. (copy to you) EP/Thn8/H16.2.25. we notice in your memo BYZHM17/W.24.2.25.… | ||
| 03-page103 | The issue of squeaking brakes on the 20 HP model and the unacceptable nature of the current remedy. | ||
| View original record | -> To Hs. from E.J. Copies to..R.W.H. D.F. X4257 EJS/H18.3.25. SQUEAKING BRAKES ON 20 HP. Please let me know what is the position in regard to squeaky brakes on the 20 h.p. Are we making experiments… | ||
| 03-page104 | Customer complaints of squeaking brakes on the 20 HP model and potential solutions. | ||
| View original record | S.E. 401a (New) (O.B. 12) 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expt. No. X4257 REF. Hs5/LG25.3.25. To R. from Hs. c. to CJ. BJ. c. to E. DA. c. to BY. Wor. SQUEAKING BRAKES ON 20 HP. X4257 We are… | ||
| 03-page105 | Delays with the 'India' chassis concerning front-wheel brakes and gearbox parts. | ||
| View original record | EXPERIMENTAL REPORT. Expl. No. X5940 REF: HS1/LG31.3.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. S E C R E T. 'INDIA' CHASSIS. X5940 X5310 We are running an 'India' front… | ||
| 03-page106 | Potential solutions and design comparisons for squeaking brakes on the 20 HP model. | ||
| View original record | 4257 To Hs. from DA. DA2/M.4.25. SQUEAKING 20 HP. BRAKES. X.4257 X.4259 X.3531 X.3313 We are going into the question of providing a means of stopping the squeaks on the 20 HP. brakes, and shall send… | ||
| 03-page107 | Cause of squeaking brakes on the Goshawk model, suggesting high pressure as the reason. | ||
| View original record | To HS. from Da. SECRET 2. DA2/HS.4.25. Handwritten: X4257 GOSHAWK. X.4259 X.4257 SQUEAKING BRAKES. A further suggestion which I meant to have sent you yesterday was that the squeaks may be due to the… | ||
| 03-page108 | Secret memorandum discussing design modifications and potential failures of front brake pivots. | ||
| View original record | To DA HS BY. } FROM R. c. to CJ. RG. E. X5940 SECRET. R5/M15.4.25. INDIA. PIVOTS FOR FRONT BRAKES. X.5420 X.5940 I am surprised that Derby made the error of cutting out the radius but perhaps it is… | ||
| 03-page109 | Secret memo discussing a proposed lightened squeak damper for 20 HP rear brakes. | ||
| View original record | X.4257 To BY. From DA. S E C R E T. DA2/M6.4.26. c. to CJ. Hs. 20 HP. REAR BRAKE SQUEAKS. X.4259 X.4257 Herewith we send N.sch.1975., of which we have sent a print to R. and which is the proposed… | ||
| 03-page110 | Suggesting a trial of a brake squeak damper based on an experiment with a Morris-Cowley. | ||
| View original record | To HS. from DA. X4257 DA3/M16.4.25. BRAKE SQUEAKS. X.4257 X.4259 X.3531 While I have been away I have tried a Morris-Cowley with squeak dampers consisting of a strip of ferodo 1" wide and 3/16" thick… | ||
| 03-page111 | The two types of squeaking brakes, a high note squeak and a low note groan, on the 30 HP model. | ||
| View original record | R.R. 488a (5m) (D.B. 175 25-9-24) J.H.D. X4257 EXPERIMENTAL REPORT. Expt. No. REF: Hsl/LG17.4.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 30 HP. - SQUEAKING BRAKES. X4257… | ||
| 03-page112 | The causes and potential remedies for brake squeaking and groaning on 20 HP and 40/50 models. | ||
| View original record | EXPERIMENTAL REPORT -2- Expl. No. REF. Hsl/LG17.4.25. Known to be bad the worst offenders for squeaking are usually of this type. On the 20 HP. if the foot brake is squeaking the squeak can be… | ||
| 03-page113 | The causes and potential cures for squeaking brakes. | ||
| View original record | R.R. 493a (500) D.B. 175 29-9-24) J.B.D. EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs1/LG17.4.25. all forms of bedding and although rebedding the brakes will always get rid of squeaks for a time, the… | ||
| 03-page114 | Ten tests conducted to eliminate brake squeak. | ||
| View original record | R.R. 401a (New) (D.B. 17) 25-6-24) J.M.D. EXPERIMENTAL REPORT. -4- Expl. No. REF: Hs1/LG17.4.25. (1) A plain steel band 1.5" X .125" pulled tightly round the drum. When used w in conjunction with the… | ||
| 03-page115 | Cause of squeaky brakes related to water and proposing a new spring and block damper design. | ||
| View original record | X4257 To HS. DA. from R. c. to CJ. RG. BY. c. to PN. E. R3/M19.4.25. SQUEAKY BRAKES. X.4257 X.4259 I had not been able to understand why we at WW. were never troubled with squeaky brakes - (we have… | ||
| 03-page116 | Testing Ferodo strips to eliminate brake squeaks. | ||
| View original record | To DA. from Hs. Y4257 Hs3/LG22. 4. 25. BRAKE SQUEAKS. Y3458 Y4257 X8360 We have tried a strip of Ferodo as you mention was being used on Morris Cowley cars. We find that it does undoubtedly make an… | ||
| 03-page117 | Preparations for a 10,000-mile test of an 'India' model with front wheel brakes. | ||
| View original record | R.R. 409A (500) (D.R. 173 25-9-24) J.M.D. EXPERIMENTAL REPORT Exptl. No. REF: Hs8/LG12.5.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. S E C R E T. 'INDIA' WITH FRONT WHEEL… | ||
| 03-page118 | Steering instability, rapid servo wear, and braking faults. | ||
| View original record | EXPERIMENTAL REPORT. -2- Expl. No. REF. HS8/LG12.5.25. There is however a feeling of unstableness when going fast. It is the same feeling which forced us to adding extra friction to the present 20 HP.… | ||
| 03-page119 | Concerning the production and testing of 'India' type cars, comparing versions with and without 4-wheel brakes. | ||
| View original record | R.R. 484a (Min) (D.R. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT To R. from Hs. c. to CJ. BJ. c. to RG. H. c. to BA. EY. c. to WOr. X5940 Exptl. No. REF HES/LGI. 3. 25. SECRET. y5770 'INDIA' WITH AND… | ||
| 03-page120 | The performance of the brakes and steering for the 'India' model with 4-wheel brakes. | ||
| View original record | R.R. 493a (50m) (D.E. 173 20-9-24) J.H.D. EXPERIMENTAL REPORT. Exptl. No. X5940 REF jis2/LG4. 5. 25 To R. from Hs. c. to CJ. BJ. c. to E. DA. c. to RG. BY. c. to Wor. S E C R E T. 'INDIA' WITH 4-WHEEL… | ||
| 03-page121 | Construction of gearboxes with torsionally free pinions and a modification to first gear. | ||
| View original record | contd :- -2- It has torsionally free pinions with the original ratio of gears. There are a large number of these boxes being built up in the Works. We are trying the deeper plunger on the 1st. speed… | ||
| 03-page122 | Graph showing the average coefficient of friction and temperature change of Ferodo bonded asbestos lining over one hour. | ||
| View original record | V.8/F.L.10 AVERAGE COEFFICIENT OF FRICTION OF FERODO BONDED ASBESTOS LINING SPEED & WORK CONSTANT WITH THE TEMPERATURE RISE FROM 70° TO 528° FAH. IN ONE HOUR. TEMPERATURE F° VALUE OF µ PERIPHERAL… | ||
| 03-page123 | Secret memo regarding the production of lightened front brake toggle shafts for 'India' cars with four-wheel brakes. | ||
| View original record | To EY. from Hs. S E C R E T. X5540 Hs5/LGH.2.5.25. 'INDIA' FOUR WHEEL BRAKES. X5770 R. is expecting that all 'India' cars fitted with 4-wheel brakes will have the lightened type of front brake toggle… | ||
| 03-page124 | Secret memo concerning the delayed departure of the 'INDIA' car with 4-wheel brakes. | ||
| View original record | To C.J. from Hs. SECRET. K5940 Hs2/LG13.5.25. 'INDIA' WITH 4-WHEEL BRAKES. K5770 With reference to CJ7/H12.5.25. asking whether the India plus 4-wheel brakes has gone to France. You will see by our… | ||
| 03-page125 | Secret memo discussing the precautions for camouflaging new 4-wheel brakes on the 20 HP model for India. | ||
| View original record | X5940 To B.J. from hs. c. to Wor. SECRET. hs2/LG15.5.25. I N D I A. X5770 Replying to your BJS/H9.5.25. We realise the necessity of keeping secret the fact that we are fitting 4-wheel brakes to the 20… | ||
| 03-page126 | The brake distribution and leverages for the 'India' four-wheel brake system. | ||
| View original record | R.R. 405A (New) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X5940 REF.HS4/LG20.S.25. To R. From Hs/Rm. c. to CJ. BJ. c. to RG. E. c. to DA. EY. c. to Wor. S E C R E T. 'INDIA' FOUR WHEEL… | ||
| 03-page127 | Tests on front axle torsion and servo efficiency. | ||
| View original record | R.R. std. (500) (O.D. 173 20.5.24) J.H.D. EXPERIMENTAL REPORT Expt. No. REF Hs/Rn/LG20.5.25. FRONT AXLE TORSION. Tests made by pulling front brakes on by means of main brake ropes, and a hold fast… | ||
| 03-page128 | Page discussing servo efficiency and theoretical brake distribution. | ||
| View original record | EXPERIMENTAL REPORT. -2- Expt. No. REF Hs/Ral/1327.5.25. as suggested by you to avoid complication. As long as the units on the graph correspond with the units used for identifying the servo… | ||
| 03-page129 | Requesting a check of figures on a sketch for 'India' front wheel brake leverages. | ||
| View original record | V5940 BY/C. from Hs/Rm. Hs/Rml/LG25.5.25. Attached is a sketch of 'India' front wheel brake leverages. Will you please check the figures we give. Hs/Rm. | ||
| 03-page130 | Blueprint detailing the G II & G III brake linkages, performance calculations, and efficiency data. | ||
| View original record | G II & G III BRAKE LEVERAGES --- SECTION 1: GII BRAKE LEVERAGE DIRECT REAR BRAKING G II P x (12.75 / 4.5) x (2.5 / 2.5) x (6 / 2.3) x 14 = 422 P Diagram Labels: DRUM DIA 14 .43 CAM --- SECTION 2: GIII… | ||
| 03-page131 | Clarifying 4-wheel brake distribution calculations and comparing braking percentages for different setups. | ||
| View original record | 5940 To Hs. from DA. c. to R. S E C R E T. DA2/M25.5.25. I N D I A. X.5940 X.8420 X.9940 X.9910 4-WHEEL BRAKES - BRAKE DISTRIBUTION. Referring to your Hs4/LG20.5.25., we should like to point out that… | ||
| 03-page132 | Ratio of servo braking for front and rear brakes in relation to vehicle weight. | ||
| View original record | contd :- -2- Incidentally in the instructions given in *Hsl/LG9.7.34. for testing the EAC.3. servo efficiency "it appears that the ratio of rod loads is expected "to come within the limits given on… | ||
| 03-page133 | Authorisation sheet for a design change to a lighter brake operating mechanism for the 'India' plus F.W.B. model. | ||
| View original record | Secret. C.F. C.H. c. Hs. X5940 BYG/H. 26.5.25. "INDIA" PLUS F.W.B. AUTHORISATION SHEET NO.11. I am informed by Hs. that R. expects to receive on India plus F.W.B. a recent design of brake Operating… | ||
| 03-page134 | The servo efficiency of the 'India' model's front wheel brakes. | ||
| View original record | R.R. 482. (50c) (D.B. 175 15-9-26) J.H.D. x5940 EXPERIMENTAL REPORT. Expl. No. REF Hs/Rm2/LC27.B.25. To DAJ from Hs/Rs. S E C R E T. x5940 x5375 x5770 'INDIA' FRONT WHEEL BRAKES. It is apparent that… | ||
| 03-page135 | Altering brake distribution by increasing leverage to the front by 20%. | ||
| View original record | R.R. 497a (Rev) (D.S. 175 25-9-24) J.M.D. EXPERIMENTAL REPORT. -2- Expt. No. REF: Hs/Rm2/LG27.5.25. leverage to the front by 20%. This can be accomplished by lengthening the lever at the base of the… | ||
| 03-page136 | Replying to a query about the comparability of braking units and servo multiplication between different models. | ||
| View original record | R.R. 487a (Dev) (D.O. 15) 15-9-34 J.H.D. EXPERIMENTAL REPORT Exptl. No. X5940 REF Hs/Rml/1.027.5.25. Handwritten: X5940 X5770 X5375 To DA. from Hs/Rm. In reply to your DA2/M25.5.25, you state that the… | ||
| 03-page137 | The braking ratios and efficiency of a servo unit referred to as the 'India' unit. | ||
| View original record | EXPERIMENTAL REPORT. -3- Expl. No. REF: Hs/Rml/L.G27.5.25. have When we/tested more servos we shall be in a better position to give a mean value for the multiplication of the 'India' unit. We are… | ||
| 03-page138 | Page discussing the calculation of front to rear braking units and servo ratios in relation to car weight. | ||
| View original record | R.R. 680a. (50m) (D.R. 175 25-9-26) J.R.D. EXPERIMENTAL REPORT. -4- Expl. No. REF. Hg/Rml/L.G27.E.25. front to rear as 1 over 2, then the total units to the rear are 100, the total units to the front… | ||
| 03-page139 | Authorisation for an improved and lightened front brake cam operation for the 'India' model. | ||
| View original record | x5940 Hs. C. NUT. [crossed out] G. RIV. [crossed out] BY4/H. 28.5.25. "INDIA" PLUS F.W.B. IMPROVED & LIGHTENED FRONT BRAKE CAM OPERATION. Referring to Authorisation Sheet No.11, CJ. has agreed to the… | ||
| 03-page140 | Spring-loaded steering connections for the India and Phantom models. | ||
| View original record | To EY. from BA. c. to BJ. Hs. X5425 DA2/M28.5.26. INDIA STEERING CONNECTIONS. X.5425 X.5450 X.8425 X.457 We send herewith Na.ch.2201 shewing the spring loaded ball joint for the India cross steering… | ||
| 03-page141 | Questioning the definition of 'servo efficiency' in relation to four-wheel brakes. | ||
| View original record | X. 5940 To Hs, from DA. BA2/M28.5.25. FOUR WHEEL BRAKES. With further reference to Hs4/LGS0.5.25., do you agree that it would be wise to have a definite understanding as to what is meant by 'servo… | ||
| 03-page142 | Secret memorandum discussing modifications and discrepancies for the 'India' model front axle brake levers. | ||
| View original record | 45940 To Hs. from DA. S E C R E T. DA2/ M29.S.25. X.5940 X.5420 'INDIA' - FRONT AXLE BRAKE LEVERS. With reference to your Hs/BmL/LG23.5.25., we are investigating the possibility of varying a small… | ||
| 03-page143 | Secret memorandum discussing torque multiplication and rod loads for the 'India' four-wheel brake system. | ||
| View original record | X.5940 To Hs. from DA. S E C R E T. DA1/M29.5.25. 'INDIA' FOUR WHEEL BRAKES. Thank you for your Hs/Rnl/LG27.5.25. On the diagram attached to Hs2/LG8.7.24. the ordinates are definitely stated to be… | ||
| 03-page144 | Braking leverage, servo efficiency, and the distribution of braking power on cars of varying weights. | ||
| View original record | -2- the same on any car he may be driving, if full advantage is taken of this power by giving him say a leverage of 25 to 1 to the back brakes, this is a definite part of the braking power available,… | ||
| 03-page145 | Secret memorandum discussing steering and braking improvements for the 'India' chassis. | ||
| View original record | 45940 To Hs. from R. c. to CJ. BJ. BY. S E C R E T. R5/M29.5.25. 'INDIA' STEERING. X.5430 X.5940 We must come to the conclusion that the steering taking charge comes about by the front axle being… | ||
| 03-page146 | Improvements and issues with the front wheel braking system. | ||
| View original record | To Hs. from R. c. to CJ. Wor. c. to DA. BY. SECRET. INDIA. FRONT WHEEL BRAKING. X.5940 X.5370 There have been some arbitrary rules on the multi-plication power of the servo. I can only think that the… | ||
| 03-page147 | Secret memo discussing front wheel braking modifications and instructions for the India model. | ||
| View original record | To Hs. from DA. c. to BY. S E C R E T. I N D I A FRONT WHEEL BRAKING. X5940 DA3/M8.6.25. X.5940 X.5370 Referring to Mr. Royce's memo, R3/M5.6.25., we have sent you instructions and information… | ||
| 03-page148 | Mr. Royce's opinion on the proportions of braking and adjustments to achieve a desired torque multiplication. | ||
| View original record | X5940 To HS. from DA. c. to RG. BY. SECRET DAL/M9.6.25. INDIA X.5940 X.5370 PROPORTIONS OF BRAKING. With further reference to Hs/Rm2/LG27.5.25., Mr. Royce does not approve of the suggestion to reduce… | ||
| 03-page149 | Effect of altering the proportion of direct braking on servo efficiencies. | ||
| View original record | To Hs. From DA. contd :- DA1/M9.6.25. We have looked into the question of altering the proportion of direct braking, and find that quite a considerable alteration does not make much difference to the… | ||
| 03-page150 | Secret memo detailing front brake and servo adjustments for vehicles in India & East Africa. | ||
| View original record | To EY. & Hs. from R. c. to CJ. BJ. Wor. Y5940 S E C R E T. RL/M10.6.25. INDIA & EAC. FRONT BRAKE ADJUSTMENT. X. 5940 X. 8370 X. 8370 X. 8420 DA. is sending through particulars of a simple modification… | ||
| 03-page151 | Continued section of a typed memo discussing the need for rapid action. | ||
| View original record | contd :- -2- right as quickly as possible. Often we do not know what to do, but when we do we are forced to urge a rapid move towards it. R. | ||
| 03-page152 | Modifications to an 'India' car, focusing on brakes, stiffer springs, and gearbox tests. | ||
| View original record | EXPERIMENTAL REPORT. Exptl. No. REF: HS4/LG11.6.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. SY. c. to Wor. S E C R E T. 'INDIA' BRAKES. We propose bringing an 'India' car to WW. next week.… | ||
| 03-page153 | Tests for 4-speed 20 HP gearboxes, detailing modifications to splines and analysing the results. | ||
| View original record | contd :- -2- We are carrying out other tests on gears, which do not come out at present, by reducing the splines at the other end to see whether we can by this means make the gear move in the other… | ||
| 03-page154 | Servo efficiency, detailing the calculation of 'torque multiplication' units for the 'INDIA' F.W.B. project. | ||
| View original record | EXPERIMENTAL REPORT. Expt. No. REF. Ha/Ra/LG11.6.25 'INDIA' F.W.B. (SECRET). SERVO EFFICIENCY. We now gather that WW. definitely consider that the measurement of the servo efficiency is most easily… | ||
| 03-page155 | Calculations for torque multiplication units for an 'India' Servo system. | ||
| View original record | contd :- -2- Hs/HL/LG11.6.25. WITH AN 'OUTPUT MULTIPLICATION' OF UNITY - f/F = 1/1 = 1 ... one "output"/input unit = 1/.645 = 1.55 "torque multiplication units". For 'India' Servo. Hs/Rm. | ||
| 03-page156 | Blueprint detailing modifications to a braking system, with associated calculations, distribution table, and performance graphs. | ||
| View original record | Top Left Section: INDIA MS4/LG 20525 AS MODIFIED BY N.Sch 2005 & DAI/M9625 Diagram Labels: DRUM DIA 13, CAM, DRUM DIA 14, .43 CAM DIRECT REAR BRAKING: (13 / 4.25) x (1.187 / 1.350) x (2.000 / 3.150) x… | ||
| 03-page157 | Secret memorandum regarding modifications to the 'INDIA' chassis front axle, brake parts, and a pending decision on front springs. | ||
| View original record | X5940 To BY. from DA. c. to Hs. SECRET. DA5/1420.625. 'INDIA' CHASSIS. X.5420 X.5410 X.5940 With the instructions as to modification to the front axle and brake parts which we have now sent you we… | ||
| 03-page158 | Part replacements for the rear brake equalizing mechanism on the 20-HP chassis for India. | ||
| View original record | COPY. X5330 To. Wd. C. O.P.Dept. C. TD. C. Sft. C. CHAT. C. MY/Rns. C. Est.Dept. BY/TWDS/GK.3.7.25. 20-HP. CHASSIS. (INDIA). (4). REAR BRAKE EQUALIZING MECHANISM. SECTION 6150. Please receive herewith… | ||
| 03-page159 | Requesting an order for 200 sets of a new Differential Actuating Lever for the 20-HP Chassis (India) front brake mechanism. | ||
| View original record | COPY X5330 BY/TWD10/GK.3.7.25. To. Wd. C. O.P. Dept. C. TD. C. Sft. C. CHAT. C. My/Rns. C. Eff: Dept. 20-HP. CHASSIS. (INDIA). (4). FRONT BRAKE EQUALIZING MECHANISM. SECTION 61B1 Will you kindly note… | ||
| 03-page160 | Part replacements for the Rear Hub of the 20-HP Chassis (India). | ||
| View original record | COPY. V5360 To Wd. C. O.P.Dept. C. TD. C. Sft. C. CHAT. C. My/Rns. C. Eff.Dept. BY/TWD9/GK.3.7.25. 20-HP. CHASSIS (INDIA). (4). REAR HUB. SECTION 6170. Please receive herewith the following Drawings… | ||
| 03-page161 | Notification regarding part replacements and material orders for the rear brakes of the 20-HP Chassis for India. | ||
| View original record | COPY. K5360 To.Wd. C.O.P. Dept. C. TD. C. to Sft. C. CHAT. C. My/Rns. C. Eff: Dept. BY/TWD8/GK.3.7.25. 20-HP. CHASSIS. (INDIA). (4). REAR BRAKES. SECTION 6130. Please receive herewith the following… | ||
| 03-page162 | List of drawings for the front axle and brakes of the 20-HP Indian chassis. | ||
| View original record | COPY. X5940 BY/TWN1/GK.3.7.25. To. Wd. C. O.P.Dept. C. TD. C. Sft. C. CHAT. C. My/Rns. C. Eff.Dept. 20-HP. CHASSIS (INDIA). (4). FRONT AXLE AND BRAKES. SECTION 7040. Please receive herewith the… | ||
| 03-page163 | Part replacements, ordering instructions, and the issuance of new blueprints. | ||
| View original record | COPY CONTD. E.16,669.Nut. (Top & Btm.Act.Lever). 4 off. E.51,661.Nut. (Toggle Act.Shaft.). 2 off. K.4209. Nut. (Toggle Act.Shaft.). 2 off. K.2822. 2.BA X 1.000 C'sk.Hd;Screw for Bolt Joint. 4 off.… | ||
| 03-page164 | Clarifying a previous message about 'INDIA' front wheel brakes, correcting a reference from 'wheels' to 'special front axles'. | ||
| View original record | To Hs. from B.J. BJ2/H16.7.25. X3940 "INDIA". FRONT WHEEL BRAKES. BJ2/H16.7.25. Confirming the telephone message sent to you this morning, the second paragraph of BJ4/H14.7.25 should refer to special… | ||
| 03-page165 | Clarifying corrections for two previous communications regarding front wheel brakes for India. | ||
| View original record | BJ. telephones:- [REDACTED] c. Hs. x5940 16th July 1925. Re Front Wheel Brakes and India: Please inform Mr.Wormald and Mr.Matley that my memo BJ5/H14/7/25 should read - " that the cost is required… | ||
| 03-page166 | Fitting 4-wheel brakes to the 20 HP car, discussing modifications and damper tests. | ||
| View original record | EXPERIMENTAL REPORT REF. HS6/LG23.7.25. Exptl. No. To R. from Hs. c. to CJ. BJ. c. to RG. DA. c. to BY. E. c. to Wor. S E C R E T. 20 HP. CAR FITTED WITH 4-WHEEL BRAKES. The 20 HP. cars which were… | ||
| 03-page167 | Continued note on brake squeak issues and damper efficiency on 20 HP and 40/50 HP models. | ||
| View original record | Contd :- -2- with a spring round the drum are 75% efficient. The heavy dampers which were run on cars are 95% efficient. Therefore as regards brake squeaks on India production cars, we anticipate that… | ||
| 03-page168 | Front wheel, rear, and servo brake adjustments for the 'India' model. | ||
| View original record | R.R.C.LTD.(G) 18-8-25 1,000 EXPERIMENTAL REPORT Expt. No. 15940 REF: Hs/RmL/LG24.7.25. 'INDIA' FRONT WHEEL BRAKE ADJUSTMENT. REAR BRAKES. The rear brakes should be provided initially with .020"… | ||
| 03-page169 | Adjustments for brake system components including rods, levers, ropes, and servo efficiency. | ||
| View original record | R.R. Form No. 1761 (5M. Bks. 12.33) EXPERIMENTAL REPORT. -2- Expt. No. REHs/Hal/LG34.7.25. ANGULAR POSITION OF RODS AND LEVERS. The angular positions of the rods and levers in the system should be… | ||
| 03-page170 | Adjustments for customers' servo, rear brakes, and front brakes. | ||
| View original record | R.R. Adv. Co H/123(2) 21.1246(50) L.R.S. EXPERIMENTAL REPORT Expl. No. REF: Hs/R m/LU24.7.25. ADJUSTMENTS FOR CUSTOMERS. SERVO ADJUSTMENT at 5,000 miles. (1) Wear on the servo can be detected by… | ||
| 03-page171 | Page describing an adjustment procedure for a serrated pressing on a camshaft. | ||
| View original record | C & G No 1021/300 2/24. 1749/300 12/23 EXPERIMENTAL REPORT -2- Expt. No REF. Ha/Bm/L.1234. 7. 25. on the camshaft and the nut taken off. The sheet metal pressing with serrations on its periphery… | ||
| 03-page172 | Braking system analysis showing the effects of servo torque on front and rear brake distribution via a lever diagram, data table, and performance chart. | ||
| View original record | INDIA M64/LG 20325 AS MODIFIED BY N. SCH. 2005 & DA / M.8625 [Diagram of Brake Levers and Components with dimensions] DRUM DIA 13" .5 CAM DRUM DIA 14" .43 CAM DIRECT REAR BRAKING 13/4.35, 1.187/1.350,… | ||
| 03-page173 | Blueprint detailing the test procedure for measuring servo efficiency and comparison using spring balances. | ||
| View original record | BASIS OF SERVO COMPARISON LBS READING OF Y LBS READING OF X AVERAGE OF ALL READINGS SHOULD LIE BETWEEN THE LIMITS GIVEN BELOW THIS BALANCE SHOULD NOT FOUL SERVO LEVERS WHEN BRAKES FULL ON INDIA SERVO… | ||
| 03-page174 | Proposals for rear brake drum covers on 20 HP & 40/50 HP chassis to prevent noise from trapped stones. | ||
| View original record | BY/FWH [Strikethrough] c. Hs. 15360 BY15/H. 7.8.25. 15360 [Strikethrough] 18360 [Strikethrough] 20 HP & 40/50 HP. CHASSIS. REAR BRAKE DRUM COVER. I am handing you herewith N.Scheme 2038 and 2039… | ||
| 03-page175 | Instructions for setting the front brake lever and determining the length of brake ropes on a 20 HP chassis. | ||
| View original record | X5940 Sft. C.Ex. c. Hs. BY15/H. 13.8.25. 20 HP. CHASSIS. FRONT BRAKE LEVER AND LENGTH OF BRAKE ROPES. -------------------------------------------------------- We cannot, of course, be certain that the… | ||
| 03-page176 | Servo rattle issue in 20 HP cars with 4-wheel brakes. | ||
| View original record | R.R. 497A. (New) (D.R. 17) EXPERIMENTAL REPORT Expt. No. 5940 REF: Hs/./L/320. 8.25. x5940 x5370 SECRET. To R. from Hs. c. to CJ. BJ. c. to HL. R. c. to DA. BY. c. to Wor. 20 HP. CAR FITTED WITH… | ||
| 03-page177 | Performance of the cam for the four-wheel brake system on car GOS.111. | ||
| View original record | 45940 To Hs. from R. c. to CJ. BY. R6/M1.9.25. GOS.111. in FRANCE. X.5840 X.5940 X.8370 It would appear that the cam for the four wheel brakes on this car is about as good as it can be, the report… | ||
| 03-page178 | Wear and tear of the brake mechanism after a 10,000-mile test in France. | ||
| View original record | R.R. 40M 100 Bks 11/24-CR.S.P.Co. 65940 EXPERIMENTAL REPORT Expt. No. REF Hs10/L/11.9.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 9-G-111 - 10,000 MILES TEST IN FRANCE-5840… | ||
| 03-page179 | Requesting brake specifications for the 20 HP chassis for a new instruction book, with handwritten replies. | ||
| View original record | Hs. from BY/N.W. 45940 BY/NW2/VM15.9.25. RE 20 H.P. CHASSIS FOUR WHEEL BRAKES Will you kindly let us have the following information regarding the above for inclusion in the new instruction book :-… | ||
| 03-page180 | Responding to queries about brake adjustments, pedal travel, and braking distribution. | ||
| View original record | R.R. Ltd. H.O.D. R. H. Dept. DERBY. V5940 EXPERIMENTAL REPORT Expt. No. REF Hs/Rs3/LG16.9.25. BY/NW. from Hs/Rm. X5940 X5370 In reply to BY/NW2/VM15.9.25. The answers to your queries are as follows :-… | ||
| 03-page181 | Twisted front axle issue on a 20 HP car fitted with 4-wheel brakes. | ||
| View original record | R.R. 653a (20 12-22) D. & S. Ld. X-4148-3932 EXPERIMENTAL REPORT Expl. No. REF. Hs2/LG16.9.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. 20 HP. CAR FITTED WITH 4-WHEEL BRAKES.… | ||
| 03-page182 | Twisted front axle (G.111 type) following a high-speed driving and braking incident. | ||
| View original record | EXPERIMENTAL REPORT Expl. No. REF. Hs/TWW/LG16.9.25. REPORT ON A FRONT AXLE (G.111 TYPE) HANDED TO US BY TEST DEPT. HAVING THE NEAR SIDE TWISTED. The chassis was being driven at a fast rate round a… | ||
| 03-page183 | Analysis of damage to an arm caused by a tyre impact combined with hard braking. | ||
| View original record | contd :- -2- combined with the solid effect produced with brake shoes hard on: that the blow, when tyre struck the bank, acting in the same direction, was sufficient to cause the arm to take a… | ||
| 03-page184 | The Phantom 4-wheel braking system, detailing changes to braking distribution and performance. | ||
| View original record | R.R. 469a (1000 Bks) (1012-3) 24. 1-25. L.W.G.Co. EXPERIMENTAL REPORT Expt. No. X5420 REF. Hs2/LG17.9.25. To R. from Hs. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. PHANTOM - 4-WHEEL BRAKING.… | ||
| 03-page185 | New 20 HP brake design intended to prevent squeaking on past and future cars. | ||
| View original record | To Hs. from BJ. BJ4/H21.9.25. X4257 SQUEAKING BRAKES ON 20 HP. I attach a copy of AJ3/H18.3.25. On the 26th June you mentioned to me in London that you then had a 20 h.p. brake design which prevented… | ||
| 03-page186 | Issue and current unsatisfactory solution for squeaking brakes on the 20 HP model. | ||
| View original record | COPY. SQUEAKING BRAKES ON 20 HP. To Hs. from BJ. Copies to...PN. Bt. Please let me know what is the position in regard to squeaky brakes on the 20 h.p. Are we making experiments to overcome this… | ||
| 03-page187 | Ongoing customer complaints about squeaking brakes on 20-HP and 40/50 HP cars, and requesting an update on a solution. | ||
| View original record | BV. c. Hs. C. BJ t4257 EP's Dept. EP. is absent. Thn8/H23.9.25. re. Squeaking Brakes. We are still having complaints of squeaking brakes - more generally in regard to the 20-HP cars, but occasionally… | ||
| 03-page188 | Squeaking brakes on 40/50 HP & 20 HP models, detailing a remedy for the latter. | ||
| View original record | tc257 c. Hs. o. Hc. BYG/H. 24.9.25. tc257 x5940 x8420 40/50 HP. & 20 HP. SQUEAKING BRAKES. Referring to Thns&/H. 23.9.25. from EP's Dept. we are now in the position to deal with squeaking brakes on… | ||
| 03-page189 | Remedies for squeaking brakes on 40/50 HP and 20 HP models. | ||
| View original record | X5940 EY6/H24.9.25. EP. c. to Hs. c. to BJ. X.4257 X.5420 X.5940 40/50 HP. & 20 HP. SQUEAKING BRAKES. Referring to Tnn8/H23.9.25 from EP's dept. we are now in the position to deal with squeaking… | ||
| 03-page190 | Issue of squeaking brakes on the 20 HP model and experimental solutions. | ||
| View original record | To B.J. from Hs. f4257 Hs4/LG25.9.25. SQUEAKING BRAKES ON 20 HP. f4257 x5940 Answering your BJ4/H21.9.25. We have made experimental dampers which overcome the squeaking. R. however considered that… | ||
| 03-page191 | Recommendation to fit a more effective damper to existing cars. | ||
| View original record | contd :- -2- We have not however very great confidence in their claims. We recommend that you should place before R. that it is desirable that a more effective damper is required which can easily be… | ||
| 03-page192 | Issues and potential solutions for squeaking brakes on the 20 HP model. | ||
| View original record | To BJ. from Hs. X5940 Hs4/LG25.9.25. SQUEAKING BRAKES ON 20 HP. Answering your BJ4/H21.9.25. We have made experimental dampers which overcome the squeaking. R. however considered that they were too… | ||
| 03-page193 | Recommendation to develop a more effective damper that can be retrofitted to existing cars. | ||
| View original record | contd :- -2- We have not however very great confidence in their claims. We recommend that you should place before R. that it is desirable that a more effective damper is required which can easily be… | ||
| 03-page194 | Customer complaints about squeaky brakes on 20 HP cars and potential solutions. | ||
| View original record | To H. from B.J. Copy to... Hs. BJ3/H28.9.25. X5940 SQUEAKING BRAKES ON 20 HP. On the 25th June, I was discussing the many complaints we were receiving concerning squeaky brakes on the 20 HP. with Hs.,… | ||
| 03-page195 | Front axle torque control, bending, and braking servo issues for the 20 HP model. | ||
| View original record | To Hs. from R. To BY. c. to CJ. RS/MD.10.25. X.5420 X.5940 FRONT AXLE CONTROL - AND BENDING OF 20 HP. FRONT AXLE. I suggest that though we know a torque control of the front axle is a decided… | ||
| 03-page196 | Potential solution for squeaking brakes on 20 HP cars. | ||
| View original record | To B.J. from R. c. to Hs. Y4257 R3/M2.10.25. SQUEAKING BRAKES ON 20 HP. X.4257 X.5940 Referring to your BJ3/H28.9.25., there may never be an absolute cure, but our device on India is good, and should… | ||
| 03-page197 | Short memo regarding a potential fix for squeaking brakes on 20 HP cars. | ||
| View original record | To BJ. from R. c. to Hs. √5940 R3/M2.10.25. X.4257 X.5940 SQUEAKING BRAKES ON 20 HP. Referring to your BJ3/H28.9.25., there may never be an absolute cure, but our device on India is good, and should… | ||
| 03-page198 | With sketches proposing modifications to the dust cover for front brakes on India models. | ||
| View original record | X. 5940 To Hs. from Da. c. to EY. DA1/MS.10.23. INDIA FRONT BRAKES - DUST COVER. Referring to the question of keeping mud etc. out of the front brakes, would you please try the dust cover modified as… | ||
| 03-page199 | Fitting an improved brake damper to existing 20 HP cars to resolve squeaking. | ||
| View original record | To BJ. from Hs. X4257 Hs3/LG6.10.25. 20 HP. SQUEAKING BRAKES. X4257 The question of fitting the improved damper for the brakes on to existing 20 HP. cars was discussed at WW. R. agreed with the scheme… | ||
| 03-page200 | The fitting of a device to address squeaking brakes on 20 HP demonstration cars. | ||
| View original record | S/H. +4257 Srd/RW/13.10.25. Re: 20 HP. - Squeaking Brakes. Referring to Hs3/LGS.10/25. - we understand that the advice referred to, is to be fitted to 20 HP. Demonstration Cars. We have Nos. GPK.6.… | ||
| 03-page201 | Rectifying squeaking brakes on 20 HP cars before the 'India' type chassis was introduced. | ||
| View original record | To Hs. from BJ. BJ20/H13.10.25. X4257 SQUEAKING BRAKES. 20 HP. With reference to HSG/LG6.10.25. you will doubtless inform EP., Hm. and N. that squeaking brakes can now be made O.K. on 20 HP. cars of… | ||
| 03-page202 | Instruction to proceed with an aluminium casting for the brake carrier due to difficulty sourcing duralumin pressings. | ||
| View original record | To EY. from DA. c. to Ex HS. X5940 DAL/MS13.10.25. X. 5940 X. 5420 We understand from Ms2/LG10.10.25., that there is difficulty in getting duralumin pressings for the brake carrier. R. would like you… | ||
| 03-page203 | The fitting of improved dampers to 20 HP cars to reduce squeaking brakes. | ||
| View original record | W/S. To Sg. from Hs. +5940 Hs2/LG14.10.25. 20 HP. SQUEAKING BRAKES. +4257 All 'India' type cars, and all India cars without 4-wheel brakes are fitted with the improved type of damper to reduce… | ||
| 03-page204 | Fitting of an improved damper to 20 HP cars to reduce squeaking brakes. | ||
| View original record | W/S. To Sg: from Hs. +4257 Hs2/LG14.10.25. 20 HP. SQUEAKING BRAKES. +4257 X5940 All 'India' type cars, and all India cars without 4-wheel brakes are fitted with the improved type of damper to reduce… | ||
| 03-page205 | Adopting the 'India' type brake drum damper to fix squeaking brakes on 20 HP cars. | ||
| View original record | A.M. 4934-20M-17/9/24-B.&S.Ld. EXPERIMENTAL REPORT x5940 Expt. No. REF.lsl/L/M14.10.25. To EY. from MR Hs. c.c. to KP. c.c. to HmL. c.c. to Hr. c.c. to RJ. SQUEAKING BRAKES ON 20 HP. CARS. R. has… | ||
| 03-page206 | Issues with the 'Phantom' 4-wheel brakes, specifically the poor friction on the equaliser link causing brake thumping. | ||
| View original record | EXPERIMENTAL REPORT Expt. No. 15940 REF: HsS/1/M4:10.25. To R. from Hs. c. to CJ. BJ. c. to RD. E. c. to DA. EY. c. to WOr. 'PHANTOM' 4-WHEEL BRAKES. 18420 The scheme for providing friction on the… | ||
| 03-page207 | The strength of the 'India' front axle. | ||
| View original record | R.R. 4984 (10 M) D. & S. 17-9-29 I.R.D EXPERIMENTAL REPORT. Expl. No. K5940 REF: Hs/RM/LS1610 To R. from Hs./Rm. c. to CJ. BJ. c. to RG. E. c. to DA. BY. c. to Wor. STRENGTH OF 'INDIA' FRONT AXLE.… | ||
| 03-page208 | Returning standardisation sheet X.4257 with the cost of supplying and fitting parts to an existing chassis. | ||
| View original record | To Hs. from W/Rms. W/Rms33/N/139/BJ21.10.25. STANDARDISATION SHEET X.4257 Returned herewith std. sheet X.4257 with cost filled in. Please note, the figure of £3. 5. 0 represents supplying the parts… | ||
| 03-page209 | Standardisation of chassis parts for brake drum dampers to reduce squeaking. | ||
| View original record | STANDARDISATION of CHASSIS PARTS COMPLETED 30.10.25 Description of Parts: DAMPERS FOR BRAKE DRUMS. Origin: To reducer squeaking. Experimental Test Report: This is a modified damper similar to those… | ||
| 03-page210 | Suggesting an alteration to the spring arrangement on the 4-wheel brake servo for the Phantom and India models to reduce friction. | ||
| View original record | To Hs. from R. c. to CJ. BY. DA. X5940 R8/M24.10.25. 4-WHEEL BRAKES - PHANTOM AND INDIA. X. 8420 X. 5940 I have suggested that it is possible you will find an improvement in altering the arrangement… | ||
| 03-page211 | Customer complaint regarding the difficulty of operating the 20-HP Chassis Brake Release Trigger. | ||
| View original record | X5940 Hs. [redacted] EP2/H14.1.26. re. 20-HP. Chassis Brake Release Trigger. This has been complained of by a customer on his new 20-HP Car, to the effect that it is very difficult and awkward to… | ||
| 03-page212 | Preventing mud from getting onto front brakes. | ||
| View original record | X5940 EXPERIMENTAL REPORT. COPIES TO: (RCJ) (EJ) WOR (By) (E Da) EP. PN. OY. (SB) Exptl. No. 4950 REF. Hsl/LG3. 2. 26. OBJECT OF TEST. To prevent mud getting on to front brakes. TESTER A.J.Lidsey.… | ||
| 03-page213 | Tests to ascertain how mud and water penetrate the front brake mechanism and how to prevent it. | ||
| View original record | GOSHAWK 111. BRAKES. FRONT BRAKE DUST COVERS. In connection with troubles arising from mud and water penetrating into the front wheel brake mechanism, we have carried out a series of tests to… | ||
| 03-page214 | Investigation into mud ingress in a brake drum assembly and the effect of dust cover design. | ||
| View original record | contd :- -2- [Diagram Text] MAJORITY OF MUD ENTERS HERE GRADUALLY DECREASING TO NOTHING TOWARDS BOTTOM OF LEADING SHOE LEADING SHOE DIRECTION OF DRUM ROTATION NO APPRECIABLE QUANTITY OF MUD ENTERS ON… | ||
| 03-page215 | Investigation into methods of preventing mud and water ingress into brake drums, with diagrams of different cover designs. | ||
| View original record | contd :- -3- [DIAGRAM - FIG II] A - COVER CHAMFERED AT 45° B - COVER & DRUM CHAMFERED AT 45° C - STEPPED COVER & WIDE DRUM If the car is driven through a puddle, water is washed on to the drum and… | ||
| 03-page216 | Improvements to a brake dust cover to prevent mud and water ingress, recommending a new design and the use of solid rivets. | ||
| View original record | contd :- -4- inner edge of the brake drum, entering directly between the edge of the dust cover and the drum. In order to prevent mud being thrown in direct, a ring was made and riveted to the dust… | ||
| 03-page217 | Diagram detailing the specifications for a successful dust cover modification. | ||
| View original record | PARTICULARS OF SUCCESSFUL DUST COVER CLEARANCE .050" CLEARANCE .060" .700" STANDARD CLEARANCE (.025) EXTRA FLANGE FITTED TO EXISTING DUST COVER BY 12 ALUMINIUM RIVETS EQUALLY SPACED, AND COUNTERSUNK… | ||
| 03-page218 | Proposal for an automatic adjustment mechanism for all six brakes on a car. | ||
| View original record | To DA. FROM R. BY. LE CANADEL. HR. c. to CJ. BJ. Wor. c. to RG. Mr. Claremont. X5940 RL/MS.8.2.26. BRAKES ADJUSTMENT. X. 8420 X. 5940 It is possible, and I think practical, to make all six brakes on a… | ||
| 03-page219 | The distortion of a sheet metal carrier bracket for Goshawk brakes caused by grease gun application. | ||
| View original record | Exptl: Report. Exptl: No. X 5360 Ref. Hs/AJL/LG12.2.26. To R. from Hs/AJL. c. to CJ. BJ. c. to RG. E. c. to DA. EY. c. to Wor. GOSHAWK BRAKES. 45980 Distortion of sheet metal carrier bracket. Several… | ||
| 03-page220 | Issues with brake shaft lubrication and a proposed alteration to the standard bearing cap G.50755. | ||
| View original record | contd :- -2- lubricator provided. If a grease gun is applied to the lubricator at A. Fig.1. it is noticed that the bracket bends from the point B. in the direction of the arrow C., tending to force… | ||
| 03-page221 | Recommendation to adopt a modification without the use of holes 'P' in a bearing cap assembly. | ||
| View original record | contd :- -3- works outwards from this groove. Holes P. are drilled so that oil, after it has passed through the bearing, overflows and so prevents any pressure building up between the ends of the… | ||
| 03-page222 | Patent for friction in suspension links for 4-wheel brakes balancing gear. | ||
| View original record | To BY. from DA. c. to Hs. X5940 DAL/M4.3.26. PATENT FOR FRICTION IN SUSPENSION LINKS - 4 WHEEL BRAKES BALANCING GEAR. X.8420 X.5940 Replying to EY3/H2.3.26., we have an instruction from R. to modify… | ||
| 03-page223 | Standardisation proposal for modified dust covers for front brakes. | ||
| View original record | RR 746 (10M) (DB190 12-9-24) MS BOILER V5940 COMPLETED 8.3.26. STANDARDISATION of CHASSIS PARTS. Date 20.2.26 Description of Parts: MODIFIED DUST COVERS FOR FRONT BRAKES. X No. 5480 Drawing No. Part… | ||
| 03-page224 | Causes of squeaking brakes and potential solutions involving new dampers and materials from Ferodo Ltd. | ||
| View original record | To CWB. from Hs. X5940 Hal/LG22.3.26. SQUEAKING BRAKES. X8420 We are not able to state the exact cause of squeaking brakes. We know of a number of causes but we do not know of any means of eliminating… | ||
| 03-page225 | Letter from Rolls-Royce of America acknowledging receipt of a completed Standardization sheet for modified dust covers for front brakes. | ||
| View original record | ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X5940 Oy6-E-32326 March 23, 1926. Rolls-Royce, Ltd., Derby, England. Gentlemen: We are today in receipt of completed Standardization sheet X No.5940… | ||
| 03-page226 | Extract from a Sales Conference discussing the issue of squeaking brakes on 40/50 HP and 20 HP models. | ||
| View original record | S/W Hs. VS940 C2/C25.3.28. SQUEAKING BRAKES. X8420 At BJ's request, I give you following extract from the Minutes of the Sales Conference on the above:- "Attention was drawn to the fact that our… | ||
| 03-page227 | Squeaking brakes, seeking feedback on improved dampers for 20 HP cars and clarifying which brakes are affected. | ||
| View original record | To C. from Hs. X5940 Hall/LG26.3.26. SQUEAKING BRAKES. X5940 Referring to your C2/C25.3.26. We are waiting for information from Sales for them to tell us how much better the 20 HP. cars are since they… | ||
| 03-page228 | Letter regarding a modified aluminium cover for the 20 HP front wheel brakes, expressing concern about water ingress. | ||
| View original record | X5940 HS. 20 HP. FRONT WHEEL BRAKES. I am sending you herewith an aluminium cover for the above. The works have filed two curves towards the bottom of the central slot, with the object of enabling… | ||
| 03-page229 | Proposed but not recommended alteration to 20 HP Goshawk front wheel brake covers. | ||
| View original record | Sv. To EH. from Hs/AJL. Y5940 Hs/AJL/LG22. 4. 26. 20 HP. FRONT WHEEL BRAKES. X5940 EY24/H29. 3. 26. The attached sketch shows the alteration to Goshawk front wheel brake covers, under consideration in… | ||
| 03-page230 | Modifications to the front brake differential to suit a new undershield. | ||
| View original record | X.5940 To BY. from DA. c. to BJ. Hs. DA1/M22.6.26. INDIA - FRONT BRAKE DIFFERENTIAL. Herewith we send Mech.2216 shewing the modifications to the Front brake differential to suit the new undershield on… | ||
| 03-page231 | Sticking brakes on 20 HP and Phantom models due to incorrect lubrication procedures. | ||
| View original record | X5470 HS R/L Mor. He. Ry. Im. CG/G.20.11.28. We have had two or three cases lately of brakes sticking on, on the 20 h.p. and are informed that this is due to the driver using the Knot Intensifier for… | ||
| 03-page232 | Recommendation to warn owners about the danger of over-using the brake Intensifier and to charge for subsequent damages. | ||
| View original record | W to C. C to Hs. C to HY. L5470/ HmlQ/W22.11.26. In reply to C6/C20.11.26, since we are footing the bill when brakes go wrong through over-zealous use of the Intensifier, I recommend we circularise… | ||
| 03-page233 | Proposal to address low-speed steering wobbles on the 20 HP model by adding friction to the cross steering levers. | ||
| View original record | X5425 BY/FHB. [struck through] c. Hs. BY12/H. 22.11.25. LOW SPEED STEERING WOBBLES. To stabilise the steering on the 20 HP. Hs. suggests that as an alternative to the scheme we have standardized for… | ||
| 03-page234 | Steering modification for the 20 HP model, concerning friction on the balls of cross steering levers. | ||
| View original record | X5425 Hs/Rm. BY14/H. 25.11.26. [STAMPED] Hs NOV 26 1926 20 H.P. STEERING. FRICTION ON BALLS OF CROSS STEERING LEVERS TO REPLACE FRICTION ON THE PIVOTS. REC D I notified BY/TWD that since we were… | ||
| 03-page235 | Distortion of brake brackets due to an intensifier on a greasegun. | ||
| View original record | To EY. From Hs. c. to Wor. L5420 Hs3/LG26.11.26. DISTORTION OF BRAKE BRACKETS DUE TO INTENSIFIER ON GREASEGUN. X5420 X7806 Although we agree that an instruction shou-ld be sent round explaining to… | ||
| 03-page236 | Advising the Works to slow down on items for the 20 HP model due to an imminent change in steering tubes. | ||
| View original record | To EY. from Hs/Hn. y5425 Hs/Hn/LO27.11.26. SAX5450 We should like to point out that a change in both the side steering tube and the cross steering tube on the 20 HP. is imminent. We therefore… | ||
| 03-page237 | The source of friction for the 20 HP pivots and steering system. | ||
| View original record | To BY. from Hs/Rm. X5425 Hs/Rm2/LG29.11.26. FRICTION IN 20 HP.PIVOTS. X5425 X5430 We anticipate that we shall obtain all the friction we require in the 20 HP. steering system from the spring loaded… | ||
| 03-page238 | Load tests on a cross steering tube under various friction conditions. | ||
| View original record | X5425 To Hs/Rn. from GWH. 11-G-111. 1.12.26. CROSS STEERING TUBE TO N. SCH. 2201. X5430 With loaded cross steering tube condition as run some time - load at periphery of steering wheel 1 lb. 14 ozs.… | ||
| 03-page239 | Notice about modifications to address the distortion of brake brackets caused by the intensifier grease gun. | ||
| View original record | Hs. c. to Wor. X5420 BY/Cgh26/G.1.12.26. DISTORTION OF BRAKE BRACKETS DUE TO INTENSIFIER ONGREASE GUN With reference to Hs3/LG26.11.26. the modification suggested in Ha/AJL/LG.12.2.26 was applied to… | ||
| 03-page240 | Redesign of the steering system to cure 'steering joggles' on the 20 HP model. | ||
| View original record | To DA, from Hs/Rm. FRICTION IN THE STEERING OF 20 HP. We are hoping to cure a large number of complaints of steering joggles on the 20 HP. by friction in the steering. Until recently, we considered… | ||
| 03-page241 | Use and modification of a spring-loaded cross steering tube. | ||
| View original record | To BY. from Hs/Rn. X5425 Hs/Rml/LG4.12.26. CROSS STEERING TUBE. X5430 We consider that it is extremely probable that a spring loaded cross steering tube to N.Sch.2201 will be used both for changeover… | ||
| 03-page242 | Details for a cross steering tube joint and alternative spring parts for a 20-HP Chassis for India. | ||
| View original record | TOURING. c. Hs/RM. P. HARVEY TINKER X5425 BY/TWD6/GK. 8/12/26. RECEIVED 9 DEC 1926 20-HP. CHASSIS.(INDIA). (4). CROSS STEERING TUBE. SECTION 7041. "N" SCHEME 2201. JOINT WITH FRICTION BALL FOR CROSS… | ||
| 03-page243 | Suggestions for brake distribution on 40/50 & 20 HP models to improve safety. | ||
| View original record | To Hs. from R. c. to BJ. 45420 R1/M13.12.26. 40/50 & 20 HP. BRAKE DISTRIBUTION. X.8420 X45420 X.8370 The object of my suggestion re. the above was :- (1) To decrease the risk of steering taking charge… | ||
| 03-page244 | Spring load requirements for the cross steering tubes on 40/50 HP and 20 HP models. | ||
| View original record | To HY/HEB. from Hs/Rm. c. HY X5425 Hs/Rml/T14.12.26. HY4/H14.12.26. X8425 X5425 With reference to the spring load required in the cross steering tubes of the two cars. We find that on the 40/50 HP. we… | ||
| 03-page245 | Solutions for friction issues in the steering of a 20 HP car. | ||
| View original record | To Hs/Rm. from DA. X/5425 DA4/M17.12.26. FRICTION IN THE STEERING OF 20 HP. CAR. X.5430 X.5425 Referring to Hs/Bml/LG11.2.26, we had hoped to be able to discuss this with R. before he went away, but… | ||
| 03-page246 | Scheme 2201 detailing a joint with a friction ball for the cross steering tube and front end of the side tube for a 20-HP Chassis (India). | ||
| View original record | Y57425 BY/TWD3/GK 31/12/26 20-HP CHASSIS (INDIA) (4) CROSS STEERING TUBE SECTION 7041 "N" SCHEME 2201 JOINT WITH FRICTION BALL FOR CROSS TUBE & FRONT END OF SIDE TUBE Please receive herewith one blue… | ||
| 03-page247 | Recommendation for springs to be used in the 20 HP cross steering tube. | ||
| View original record | X5425. To EY. from Hs/Rn. Hs/Rn2/LG7.1.27. 20 HP. CROSS STEERING TUBE. We recommend that the springs to be used in the cross steering tube to N.Sch.2201 on all 20 HP. cars without friction in the… | ||
| 03-page248 | Standardisation test report for a spring-loaded cross steering tube to improve 20 HP steering. | ||
| View original record | STANDARDISATION of CHASSIS PARTS. Handwritten Top Center: X5425 completed 20.1.27 Description of Parts: SPRING LOADED CROSS STEERING TUBE+ Origin: To improve 20 HP. steering. Box Right: No. 5425… | ||
| 03-page249 | Scheme for squeak dampers on 20 HP front brakes. | ||
| View original record | To Ha/Rn, from DA. X5420 Dal/M28.1.27. SQUEAK DAMPERS ON 20 HP. FRONT BRAKES. X.5420 X.4612. With reference to Ha/Rn2/LG24.1.27., we will send you a scheme for squeak dampers on the 20 HP. front… | ||
| 03-page250 | Confirming the fitting of an adjustable cross steering tube to a chassis. | ||
| View original record | K5425 To Hs. from RHC. Cc. ABL. RHC14/RE. 2.2.27. 9.G.III.CHASSIS The following has now been fitted to the above Chassis. Cross Steering Tube Adjustable Cross Steering Tube fitted with Springs G.53163… | ||
| 03-page251 | Follow-up request for an anti-squeaking device for a 20 HP vehicle which is due to go to France. | ||
| View original record | To D.A. from Hs/Rm. X5470 Hs/RmL/LG18.2.27. Sometime ago we wrote and asked you for an anti squeaking device for the 20 HP. We wonder whether you have a scheme that could be fitted to the 20 HP. which… | ||
| 03-page252 | Proposed arrangement for a squeak damper on the 20 HP front brakes. | ||
| View original record | To By. Hs. from DA. c. to ROLLS-ROYCE LIMITED DERBY 10,000 MILE 20 HP. CAR - X.4612 SQUEAK DAMPER ON FRONT BRAKES. X.5420 X.5425 Herewith we send N.sch. 2359 shewing the proposed arrangement of squeak… | ||
| 03-page253 | The proposed arrangement of a squeak damper on the front brakes for a 20 HP car. | ||
| View original record | To BY, Hs. From DA. c.c. to BJ. √5425 10,000 MILE 20 HP. CAR+ X.4612 SQUEAK DAMPER ON FRONT BRAKES. X.5420 X.5425 Herewith we send N.sch. 2369 shewing the proposed arrangement of squeak damper on the… | ||
| 03-page254 | Squeaking damper scheme for 20 HP front brakes, noting it as an improvement and requesting it be put into production. | ||
| View original record | X5420 To BY. from Hs/Rs. Hs/Rs2/LG9.3.27. 20 HP. SQUEAKING DAMPER SCHEME FOR FRONT BRAKES - N.SCH.2369. FOR X4612 With reference to EY9/H1.3.27 we consider that as far as we have gone this front… | ||
| 03-page255 | Starting the preliminary work for a 20 HP non-squeaking device. | ||
| View original record | X5420? HS. SYI/H. 10/ 3. 27. 20 HP. NON-SQUEAKING DEVICE - N.Sch.2369. Referring to Hs/RMZ/LG. 8.3.27. I am starting on the preliminary work necessary to enable us to introduce the above scheme. It… | ||
| 03-page256 | Braking issues such as sponginess and hopping, with suggestions regarding axle rigidity and damping. | ||
| View original record | To Hs/RH. from R. To Da. c. to BJ. wor. BY. X5420 H3/M12.3.27. EAC.7. BRAKING ETC. X.7420 X.5420 X.7240 I can understand various occurrences of sponginess, but not any material loss of motion due to… | ||
| 03-page257 | Questioning the necessity and suggesting a design modification for 20 HP front wheel brake squeak dampers. | ||
| View original record | To DA. HS. BY. from R. c. to BJ. Wor. BY. PN. V5420 R1/10/3.3.27. 20 HP. FRONT WHEEL BRAKES SQUEAK DAMPERS. X.4612 X.5420 DA's drg. received. Are these really necessary - i.e. do they justify their… | ||
| 03-page258 | Design of brake squeak dampers for the 20 HP and Phantom models. | ||
| View original record | To EY. from DA. c. to Hs. X5420 DA3/M7.4.27. BRAKE SQUEAK DAMPERS. X.4612 X.5420 X.8420 With reference to R's comment that the squeak damper should be narrow, and fitted into a broad groove, the… | ||
| 03-page259 | Permanent set and free length of cross steering tube springs. | ||
| View original record | X5425 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby. Angleterre. 20th. April 1927. Y5840 Mr. Hancock from Hs/Rn. CROSS STEERING TUBE SPRINGS. With reference to your note stating that you believe the… | ||
| 03-page260 | Complaint of a knock on brake application on a 20 HP car and recommending a standardised servo modification for all 20 HP and Phantom models. | ||
| View original record | To Hs. & EY. from DA. c. to BJ. Wer. Hm. X5420 dal/M25.4.27. BRAKES. X.5420 X.5370 R. has heard of a 20 HP. car which was complained of because of a knock on application of the brakes. It was stated… | ||
| 03-page261 | Unsatisfactory performance of the servo without a spring thrust collar and issues with brake bedding. | ||
| View original record | To BJ. from R. c. to GY. Hs. c. to EY. EP. L5430 R 5/M29.4.27. BRAKES. X.8370 X.8420 ------- X.5370 X.5420 It should be thoroughly understood that the present servo is not perfectly satisfactory… | ||
| 03-page262 | The failure and loss of a rear brake squeak damper on a 20 HP car during testing in France. | ||
| View original record | To R. from Hs/GWH. c. to BJ. Wor. c. to E. DA. c. to HY. X5420 Hs/GWH/LG24.5.27. 20 HP. REAR BRAKE SQUEAK DAMPERS. X4617 The rear O.S. brake damper was lost during the 10,000 miles in France on… | ||
| 03-page263 | Standardisation of an anti-brake squeaking device for the 20 HP chassis. | ||
| View original record | AR 780 REVISED (1000) (ROX 9-12-25) 2M. 2/1/27. x5420. Complete 16/6/27 STANDARDISATION of CHASSIS PARTS. Date 11.3.27 5420 X No. 4612 Drawing No. Sch No. 2359 Part List Description of Parts.… | ||
| 03-page264 | Standardisation sheet for an anti-brake squeaking device with a note about costs. | ||
| View original record | COPY. To Lmj from Hy/Rb. Hy/Rb7/H/139A/BJ19.3.27. STANDARDISATION SHEET. ANTI BRAKE SQUEAKING DEVICE - X.5420/4612 Returned herewith above std.sheet with costs filled in. Please note these figures do… | ||
| 03-page265 | Confirming the decision to use cast aluminium for brake straps instead of duralumin. | ||
| View original record | Y5420 To BY. From Hs. c. to DA. Hs2/LG9.12.27. [REDACTED] During our last visit to WN, it was agreed that we should cancel the use of duralumin for brake straps and stick to the cast aluminium. Hs. | ||
| 03-page266 | The dispatch of layouts for the 'India 3' brake linkage, detailing modifications to accommodate a tubular cross member. | ||
| View original record | BY. from DA. c. to BJ. Hs. Y5420 DA3/M20.12.27. INDIA 3. BRAKE LINKAGE. X.5420 K.5380 Herewith we send N.sch.2526 - full sized layout of the brake linkage with the tubular cross member. We have… | ||
| 03-page267 | Alternative arrangement for the India 3 brake mechanism carrier levers. | ||
| View original record | BY. from DA. c. to BJ. Hs. (5420). DAL/M31.12.27. INDIA 3. BRAKE MECHANISM. X.5380 X.5420 We send herewith M.schs.2532 and 2533 which shew an alternative arrgt. for the carrier levers, having the… | ||
| 03-page268 | Cause and potential solutions for 'brake thumps' on 20-HP cars. | ||
| View original record | -DY. C. HS. Y5420 EP15/H29.10.28. re. 20-HP. BRAKE "THUMPS". The above is at present rather a general complaint and appears to be a trouble which takesplace on some new 20-HP cars, shortly after… | ||
| 03-page269 | The benefits of using damping friction on the cross steering tube for the Phantom and 20 HP models to avoid rattles. | ||
| View original record | To B.J. from R. c.c. to OY. Hs. BY. X5425. R3/M29.4.27. STEERING - DAMPING FRICTION. X.5431 X.5425 X.5431 X.5425 Regarding the damping friction of the balls of the cross steering tube, 1200 lbs.… | ||
| 03-page270 | Issues with the spring-loaded cross steering tube and requesting modifications for more spring room. | ||
| View original record | To DA. from Hs/Rm. X5425 Hs/Rml/LG26.5.27. 20 HP. SPRING LOADED CROSS STEERING TUBE. X457 Since its inception, we have been in trouble with the spring loaded ball ends on the 20 HP. cross steering… | ||
| 03-page271 | Modifications and performance issues of the 20 HP braking system. | ||
| View original record | Y5420 c. Hs. BY10/G.31.10.28. 20 HP. BRAKES. --------- I am not in agreement that the modification to the arm will affect the question of the thumps at all. The fact that there is a long flexible side… | ||
| 03-page272 | Response to a complaint about brake thumps on a 20 HP car, requesting to test a vehicle with the described fault. | ||
| View original record | To EP. from Hs. c. to EY. X5420. Hs3/LGL.11.28. 20 HP. BRAKE THUMPS. We see no reason why the present 20 HP. brakes should suffer from this complaint any more than any of the previous 20 HP. fitted… | ||
| 03-page273 | High cost of duralumin forged brake shoes and suggesting a trial of more affordable aluminium castings. | ||
| View original record | Hs. BY. from DA. X5420 DA3/M7.1.29. 'SS' BRAKES. X.7420 X.5420 X.7360 We believe that the duralumin forged brake shoes are very expensive. Since aluminium has answered satisfactorily on the Phantom… | ||
| 03-page274 | Request to remove the cross from a 12-G-4 chassis and fit adaptors for the brake cables. | ||
| View original record | To RHC. from Hs/Rn. X52420 X53580 Hs/RmS/LG28.1.29. We require the cross removing again from the 12-G-4 chassis complete and the adaptors for carrying the brake cables fitted. Hs/Rn. | ||
| 03-page275 | Request for the urgent production of brake gear components to sketches HS.210/211/212 to conclude testing. | ||
| View original record | X5420 To HIC. from Hs/Rn. Ha/Rst/L013.3.29. The Works are having to go slow on brake gear material until we have completed our tests. We require pieces made to sketches HS.210/211/212 in order to… | ||
| 03-page276 | Standardisation report for a modified brake lever. | ||
| View original record | STANDARDISATION of CHASSIS PARTS. Description of Parts. MODIFIED BRAKE LEVER. Origin. Improved design and simplified. Experimental Test Report. This brake lever was got out to be used in conjunction… | ||
| 03-page277 | Chassis number for fitting a new part, test date, and associated costs. | ||
| View original record | The number of the chassis on which the new part will be fitted. 51 in 'O' series. Date when chassis will be handed to test. 6.4.29 Cost of scrapped material, if any. Nil. Cost of a jigs and tools.… | ||
| 03-page278 | Instructions on the lubrication of the 20 HP brake equaliser mechanism to prevent oil leaks. | ||
| View original record | Y5330 To EP. from Hs/Gy. c. to Mx. BY. Hs/Gyl/1G24. 6. 29. 20 HP. BRAKE EQUALISER MECHANISM. X3806 The lubrication system at present fitted on the 20 HP. equaliser mechanism is designed to operate… | ||
| 03-page279 | Customer complaints of clanking in the brake mechanism upon pedal release. | ||
| View original record | R. From Hs/Rs. C. Sg. C. Wor. E. C. Ds. EV. OY. X5420. Hs/Rs.5/AD9.10.29. X.7420 X.7370 X.5420 X.5370 CLANKING OF BRAKE MECHANISM. We regularly get complaints about the clank which occurs in the brake… | ||
| 03-page280 | Troubleshooting brake system operation and noise, with proposed solutions involving stops and dampers. | ||
| View original record | -2- arm does not return to its zero point. We find however, that if we fit a stop to the front equaliser shaft, the trouble which at present occurs when the swinging arm friction increases… | ||
| 03-page281 | Description of a damper's function within the brake mechanism. | ||
| View original record | -2- This acts as a damper to all the leverages except the rear brake levers, and is not upset by any wear taking place in the brake mechanism. It not only quietens the clanking of the servo, but damps… | ||
| 03-page282 | The clanking of the brake mechanism, referencing an attached print. | ||
| View original record | X5420. To R. From Hs/Rn. c. to SG. c. to DA. c. to BY. Oy. Hs/Rn4/AD15.10.29. CLANKING OF BRAKE MECHANISM. X.7420 X.737 O X.5420 X.5370 For prints see original. = Please find attached print mentioned… | ||
| 03-page283 | Investigation into the cause and potential solutions for a clanking brake mechanism upon release. | ||
| View original record | HS. FROM R. X5360 R5/M12.11.29. C. to SG. WOR. BY. CLANKING OF BRAKE MECHANISM ON RELEASE X.7380 X.5360 Referring to H8/RM5/AD81029., Mr Hardy says that as far as he can make out the clanking… | ||
| 03-page284 | Modifications to a lever mechanism using a spring, an inverted dashpot, and rubber stops. | ||
| View original record | -2- want of clearance. (2) Spring to reduce vigour of falling weight, etc, of lever or dashpot for same. The dashpot is the same as yours, but inverted vertically, thus - (3) Rubber faced stops placed… | ||
| 03-page285 | Production issues related to the anchorage and bedding of front brake shoes. | ||
| View original record | x5420. To BY. From Hs/Rn. Hs/R&S/MJ.4.12.29. X7420 x5420 ANCHORAGE OF FRONT BRAKE SHOES. A point has arisen on production in connection with brake bedding. It is found that when the brake shoes have… | ||
| 03-page286 | Directive to modify the 20 HP chassis front wheel brakes, replacing damping pads with a groove on the drum. | ||
| View original record | BY/FHD. (struck through) c. Eft. (struck through) c. Hs/lm. c. BOY/HE. (struck through) K540 (handwritten) BY5/G.27.2.30. 20 HP. CHASSIS - FRONT WHEEL BRAKES. Please note that we should bring the 20… | ||
| 03-page287 | Advising to continue with the current scheme for 20 HP Chassis front wheel brake damping segments pending a 10,000-mile test. | ||
| View original record | Y5V-20. SEL. (Strikethrough) c. ROY. (Strikethrough) c. Hs. c. G. Deuty (Redacted) BY/Cgh/1/L.8.3.30. 20 HP. CHASSIS - FRONT WHEEL BRAKES. With reference to EY5/G.27.2.30. in which we suggested that… | ||
| 03-page288 | Suggesting a smaller rivet head for narrow brake shoes on the 20 HP hand brake. | ||
| View original record | X 5930. BY. From Hs/Rn. Hs/Rn.6/AJ.27.3.30. BRAKE SIDE STRAPS. We note upon examining some of the narrowest brake shoes in the works, such as the 20 HP. hand brake, that the rivet heads are of such a… | ||
| 03-page289 | Standardisation of a brake clank silencer and stop for front brake ropes. | ||
| View original record | X 5420 . COMPLETED 8.5.30. STANDARDISATION of CHASSIS PARTS. Description of Parts. BRAKE CLANK SILENCER AND STOP FOR FRONT BRAKE ROPES. Origin. To prevent noise when brakes are released. Experimental… | ||
| 03-page290 | Advising the fitting of a non-return type gun nipple to axles on 20 HP and 40/50 HP models to maintain oil pressure. | ||
| View original record | To BY. from Hs/Gy. Y5360 Hs/Gy1/LG13.5.29. This is to confirm that we advise fitting a non-return type of gun nipple to the axles on 20 HP. and 40/50 HP. Owing to the addition of reservoirs to these… | ||
| 03-page291 | Enquiry into missing wooden plugs fitted inside the rear brake toggle shaft on the 20 HP model. | ||
| View original record | X5360 By. from Hs/Gy. Hs/Gyl/LG14.5.29. We note that no wooden plugs are yet fitted inside the rear brake toggle shaft on the 20 HP. Will you please enquire into this. Hs/F.Gaye. | ||