Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Problem with the heel board grooves and comparing the engine compression between cars 7CA and 58NA. | ||
| View original record | [Handwritten annotations at top] X.508 GREEK 7CA 58NA (HB only) R C1576 [Stamp] COPY To Wor. for EH from R. Copy to J. " " Wor. for Hy. " " Da. " " Na. R1/IB2215. February 2nd. 1915. With reference to… | ||
| img002 | Extract discussing the use of C.I. Zephyr scraper ring pistons for standard car and Northcliffe engines. | ||
| View original record | EXTRACT FROM R2/IB5515 of MAY 5th, 1915. RE X.2535 - C.I.Zephyr Scraper ring pistons for standard car engine. "Would this C.I. Zephyr piston not do for the standard engine just as it is, or slightly… | ||
| img003 | Request to produce 18 experimental piston castings and various test pieces from a new stock of Vanadium Aluminium alloy. | ||
| View original record | Typed Text: Wor. Na9/Sllll5. 1st November 1915 We have received into our Stores a quantity of Vanadium Aluminium alloy from which we should make some experimental pistons. There is about two cwt. of… | ||
| img004 | Follow-up letter regarding the status of experimental pistons and test pieces. | ||
| View original record | Wor. Na3/S191115. 19th November 1915. Further to ours of November 1st ref. Na9/S11115, we wish to ask if you have been able to make the experimental pistons and test pieces mentioned therein.… | ||
| img005 | The release of Vanadium Aluminium Alloy from the stores, with a handwritten reply clarifying instructions. | ||
| View original record | Wew. 22.11.15. Mcr6/L221115 Vanadium Aluminium Alloy. In reference to your memos Na9/S191115 and Na3/S191115, kindly note that we have not been able to make a start on this job because the Stores will… | ||
| img006 | Instructions for casting a two cwt batch of Vanadium Aluminium Alloy into pistons and test pieces. | ||
| View original record | Mr Roney. Mr Kesterton. Vanadium Aluminium Alloy. 22.11.15. Mer16/L221115. Mr Nadin now instructs that the two cwt. of the above alloy should now be handed to Mr Kesterton and cast up into 18 Pistons,… | ||
| img007 | To Mr Kesterton about the progress of obtaining Vanadium Aluminium pistons. | ||
| View original record | 11/16 Piston in Vanadium Aluminium. Mr Kesterton. 7.12.15. Mcr8/L71215. With reference to my several verbal enquiries re the progress of the above, I shall be glad if you will make some effort to get… | ||
| img008 | Vanadium Aluminium Alloy tensile test pieces and piston castings. | ||
| View original record | 19/W Vanadium Aluminium Alloy. Na. 11.12.15. Mcrl/L111215. With reference to your memo Na9/S11115, please note that there are now two tensile test pieces and 2 Upton-Lewis test pieces now in the… | ||
| img009 | The scrapping of faulty experimental Vanadium Aluminium Pistons. | ||
| View original record | 11/H Re Vanadium Aluminium Pistons. Na. 16.12.15. Mcr6/L161215. We understand the Inspection Dept. has already reported to you that the experimental set of the above pistons have been scrapped by our… | ||
| img010 | Request concerning experiments with 'Eagle' and chassis pistons featuring multiple rings, and for a set for Commander Briggs' car. | ||
| View original record | R.R. 255 A (400 T) (S.C. 536. 15-2-16) G. 1546. COPY To Ey. from E. c. to St. c. to EH. 20/7/16 E1/W19716. July 19th, 1916. RE PISTONS WITH MANY RINGS. Please find attached drawing Nos. LeC.599, and… | ||
| img011 | Use and testing of aluminium pistons for the car. | ||
| View original record | R.R. 235 A (400 T) (S.C. 536. 15-2-16) G. 1546. COPY X 2369 To By. from R. c. to Hs. c. to EP. c. to J. X 2369 RE - ALUMINIUM PISTONS FOR THE CAR. R3/W18916. 19.9.16. Regarding aluminium pistons for… | ||
| img012 | Use of aluminium pistons, comparing original and Zephyr types, and requesting further tests. | ||
| View original record | R.R. 235 A (400 T) (S.C. 536 15-2-16) G. 1546. To BY from R. c. to Hs. c. to EP. c. to J. COPY. RE) ALUMINIUM PISTONS FOR THE CAR. R R3/W18916. 19.9.16. Regarding aluminium pistons for the car I… | ||
| img013 | Instructing to proceed with standardizing 7-ringed aluminium Zephyr pistons for the standard car. | ||
| View original record | To Mr Mills from BY/ST. BY/ST5/DB21916. September 21st, 1916. RE STANDARD CAR - ZEPHYR PISTONS - X.2369. Will you please instruct the works to press forward with the 7 ringed aluminium Zephyr pistons… | ||
| img014 | Standardisation proposal for aluminium Zephyr pistons, with comments from engineering staff. | ||
| View original record | R.R. 755 (5 H) (S.A. 325. 25-2-15) G. 0961 STANDARDISATION of CHASSIS PARTS. Description of Parts. ALUMINIUM PISTONS CONICAL TOP, ZEPHYR WITH MANY RINGS. Origin. ---- Experimental Test Report. Road… | ||
| img015 | Returning standardisation sheets due to a lack of experimental reports on new parts. | ||
| View original record | By. c. J. c. toWor. X.2369. NA4/S19.9.16. 19.9.16. I return herewith the Standardisation sheets for Aluminium Pistons, Governor Drive, and Pressure Feed Pump, which I regret I am unable to sign… | ||
| img016 | Modifications to seven-ringed Zephyr type chassis pistons. | ||
| View original record | R.R. 235 A (400 T) (S.C. 586. 15-2-16) G. 1546. To By from E. c. to Hs. c. to Clk. COPY. COPY. RE - CHASSIS PISTONS. E2/W21016. 2/10/16. With reference to the seven-ringed Zephyr type pistons, will… | ||
| img017 | Instruction to fit an experimental set of aluminium Zephyr pistons to vehicle 7CA. | ||
| View original record | To Mr Mills from BY/ST. BY/ST4/DB161016. October 16th, 1916. RE STANDARD CAR - PISTONS - X.2369. Will you please instruct the works that one of the experimental sets of aluminium Zephyr pistons to… | ||
| img018 | Fitting Zephyr pistons with long skirts, noting extra metal has been left on the skirt diameter for a tighter fit. | ||
| View original record | R.R. 235 H (200 T) (S.C. 536. 15-2-16) G. 1547. To Mr Haldenby from BY/ST. X2369 BY/ST8/DB231016. October 23rd, 1916. RE STANDARD CAR - ZEPHYR PISTONS WITH LONG SKIRTS. X.2369. We have instructed, as… | ||
| img019 | Standardisation sheet for the 'after the war' chassis piston and delaying material orders until testing is complete. | ||
| View original record | R.R. 235 A (100 T) (S.E. 575. 16-4-19) G. 2354. To J. ) " R. ) " Wor) FROM BY. " NA.) " EP.) 24th October. 1916. BY6/G24.10.16. X.2369. RE PISTON FOR "AFTER THE-WAR" CHASSIS. We attach herewith… | ||
| img020 | Cover note for index sheets detailing the history of chassis piston experiments X.2309 and X.2609. | ||
| View original record | To Wor. for Mr. Coverley‡ from EFC, 2309 X.2609 EFC5/T5317. 5th March 1914 RE CHASSIS PISTON EXPERIMENTS. Herewith please receive two index sheets of the history of the chassis piston experiments… | ||
| img021 | List of completed chassis experiments involving different piston, ring, and valve configurations ready for testing. | ||
| View original record | X.2369 To EFC. from Mr. Coverley c.c. to Mr. Haldenby. EFC16/T15317. 15th March 1917. The following chassis experiments are finished and ready for test :- X.2369A - Pistons E.10915 with 6 upper rings… | ||
| img022 | Log of instructions and specifications for Aluminium Zephyr Pistons for a standard car. | ||
| View original record | X.2369 - ALUMINIUM ZEPHYR PISTONS FOR STANDARD CAR. X.2369A - Pistons E.10915 with 6 Upper Rings and 1 Scraper Ring with no skirt below bottom Ring. Rings 4 & 6 Pinned. (to super sheet E10937) X.2369B… | ||
| img023 | 'RE' engine experiments, listing different piston and valve specifications for testing. | ||
| View original record | To Wor. for Mr. Coverley. from EFC. X.2369 EFC3/AT28.3.17 RE EXPERIMENTS. With reference to the following experiments which you reported to us as finished and ready for test, Mr.Heldenby now informs… | ||
| img024 | Overhaul and proposed improvements for the RE 7 C.A. car. | ||
| View original record | To R. from EH. c to J. c. to By. c. to E. X. 2369B EHL/AT19.4.17. X.682 - RE 7 C.A. CAR. This car is at present being overhauled and the bearings in the engine are being done up. When the engine is… | ||
| img025 | List of technical specifications for various automotive components, page 2. | ||
| View original record | EH1/AT18.4.17. -2- X.1422 12. Aluminium brake straps. X 13. No intermediate bearings to propeller shaft. 14. Gleason double gears in rear axle. x.2650 15. Rear springs and brackets are being made so… | ||
| img026 | Experiment with 7-ringed pistons, part number X.2369A. | ||
| View original record | R.R. 235 B To EFC. From Mr. Coverley. EFC15/T25.4.17. X.2369A - 7 RINGED PISTONS WITHOUT SKIRT SCRAPER (Note: the word SCRAPER is struck through) The above experiment has been fitted to 7C-A. and is… | ||
| img027 | Engine design considerations for the 7 CA car engine, including pistons and camshafts. | ||
| View original record | JULY 1/17 ORIGINAL 7 CA. (CAD) 4 To EH. from R. R1/B2:5:17. c.c. to J. c.c. to Wor. c.c. to By. X.682 Re Car Engine - 7 CA. c.c. to M. RECEIVED In reply to your memo EH1/AT19:4:17, I am hoping to be… | ||
| img028 | Modifications and testing for gearboxes, shock absorbers, and back axles. | ||
| View original record | To EH. from R. 2. R1/B2:5:17. cams, we think, would be of much use. Regarding the gear box, I should be glad to know if you and Mr. Bailey are impressed that this is satisfactory from an oil retaining… | ||
| img029 | Progress update on an experimental index and asking for catalogue specifications for a card cabinet. | ||
| View original record | To EFC. from E. ORIGINAL E2/B8:5:17 (81-1-12 .612 C.2) (H 002) A 822 2 X.2848 Re Experimental Index for St. Margaret's. We should be glad to know how the above is going on and when you expect you will… | ||
| img030 | Expressing distress over the poor quality of tools and detailing the required standards for material, machining, and finishing. | ||
| View original record | To Mr. Chandler from -R. c. to J. c. to WOP. c. to EH. c. to By. ORIGINAL X.2402 RE TOOL KIT. 3 R1/B11:5:17. RECEIVED 14 MAY 1917 I am quite in agreement with your memo of April 24th. and am… | ||
| img031 | Springing experiments and planned upgrades for car 7 CA, including high-speed valves, pistons, and an automatic starter switch. | ||
| View original record | To EH. from R. c. to J. [crossed out] c. to By. [crossed out] c. to E. [crossed out] c. to Oy. [crossed out] X. 682 RE CAR 7 CA. ORIGINAL I shall only require this car for about a week, so that it… | ||
| img032 | From R. to EH. discussing potential vehicle modifications for weight reduction and improved fuel economy. | ||
| View original record | To EH. from R. 2. R6/B11:5:17. X.2651 I cannot believe it is impossible to do anything in the way of lightening the back axle, and I do hope you will be able to manage some modification to this part… | ||
| img033 | Revised acceleration values and grinding wheel dimensions for the 7 CA chassis cam mechanism. | ||
| View original record | To By from E. c. to EFC. ORIGINAL E2/B11:5:17. [Stamp: RECEIVED 14 MAY 1917] [strikethrough] X 682 [/strikethrough] Re Car 7 CA. X.2937 With reference to the cam you are making for chassis 7 CA, I… | ||
| img034 | Drawing for the form of valve heads required for Chassis 7 CA. | ||
| View original record | To By. from E. c. to EFC. ORIGINAL E2/B14:5:17. 4. X 682 Re Chassis 7 CA. X 2983B With regard to my memo E3/E27:3:17 in which I promised to send you a drawing showing the form of head we require for… | ||
| img035 | Putting a Lanchester chassis in good condition to test its gearbox. | ||
| View original record | To EH. from R. c. to J. ORIGINAL R9/B22:5:17. X.440 Re Lanchester Chassis. X 3053 It is thought worth while to put the Lanchester chassis in good fettle so that experience can be obtained from it of… | ||
| img036 | Outlining a proposed testing regime for a Packard car, including dynamometer and consumption tests for competitive analysis. | ||
| View original record | PACKARD 7 CA To E.H. from R. C.c. to J. X.682 ORIGINAL Re "After-the-War" Chassis. R7/B23:5:17. D 7 (847) 25 MAY 1917 RECEIVED X435 When the Packard was in Derby, I presume it was never put on the… | ||
| img037 | Arranging for car 7 C.A. to be delivered to Peterborough with instructions for fuel. | ||
| View original record | To EH. from R. c. to J. ORIGINAL R6/B31:5:17. X.682 Re Car 7 CA. I shall want 7 C.A. to be at the Angel Hotel, Peterborough, on Friday night, June 15th. I hope the car will be doing 20 miles to the… | ||
| img038 | Carburation for car 7 CA, comparing the C.H. carburetter with other types and discussing induction pipes. | ||
| View original record | ORIGINAL. To EH. from R. C. to J. R6/B8:6:17. [STAMP: JUN 1917] 4 X:682 Re Car 7 CA. Regarding the carburation on 7 CA, it should be quite understood that the C.H. carburetter may be very useful for… | ||
| img039 | Requesting a proper wiring scheme and arrangement drawings for a car chassis. | ||
| View original record | 7 CA To By. for Mr.Omerod c. to EH. ORIGINAL RECEIVED X 682 Re Chassis. Mr. Hives mentioned to me that we require a proper wiring scheme for the car, comprising a complete wiring diagram for the… | ||
| img040 | Delay and requirements for a contact breaker for magneto experiments. | ||
| View original record | To EFC. from Oy. c. to EH. c. to Wor. for Mr. Ellis. 7 CAC/B 2/9 ORIGINAL Oy1/B15:6:17 D 13 JUN 1917 RECEIVED 2 Re Magneto Experiments - X.2823. X.2918. I cannot understand why the contact breaker… | ||
| img041 | Report investigating a dual-cause fuel flow problem involving an air-lock from test piping and grit contamination. | ||
| View original record | To EH. from R. Copy to GJ. BN. ORIGINAL. RE RUNNING OF 7 CA. R5/G16/6/19 X.682. A mysterious phenomenon has occurred on this car which has been hard to locate, because it was double, viz,- (1) An… | ||
| img042 | Fault in a float chamber due to grit, inquiring about cleaning history and suggesting modifications. | ||
| View original record | To EH. from R. -2- R5/G16/6/19 Contd. I should be pleased if you would tell me when this floatchamber was last taken down for cleaning, as the amount of the deposit in it would appear to have been the… | ||
| img043 | Rotted petrol gauzes causing poor running in cars 7-CA and 49-GB, likely due to benzol fuel. | ||
| View original record | ROTTED PETROL GAUZES, 49GB-BENZOL (EP WARNED Hs) 'R' + 7 CA To R. from EH. c. to C.J. c. to BM. c. to E. c. to BY. c. to OA. ORIGINAL. RE RUNNING OF 7-CA CAR. X.682. X.2631 The last time 7-CA… | ||
| img044 | Clarifying previous correspondence regarding delays and misunderstandings on experimental work for cams, bearings, and driver schemes. | ||
| View original record | To WH. from C. c. to EFC. ORIGINAL Oyl/B25:6:17. X.3054. Re letters Ovl/B15:6:17 and Ovl/B19:6:17. The letters to which you take exception with regard to the experimental work are, I presume, those… | ||
| img045 | The progress of fitting a contact breaker to a 7 CA, which is now a step closer to standardization. | ||
| View original record | To Wor. for Mr. Ellis from Oy. c. to EFC. c. to EH. ORIGINAL Oy1/B20:6:17. 2 X. 2823 D. Re R.H. Contact Breaker on 7 CA. I am sorry to have worried you unnecessarily about the supposed delay in… | ||
| img046 | From M. Olley clarifying that the Friction Anchorage Experiment X.2968 was a development of the spring anchorage experiment X.2957A. | ||
| View original record | To EH. from Oy. 2. Oy1/B25:6:17. X2968 or a developement of the spring anchorage experiment, X.2957A. I thought that the Friction Anchorage Experiment X.2968 was going through under a misleading… | ||
| img047 | Investigating the cause of excessive wear on a contact breaker for Car 7 CA. | ||
| View original record | To EH. } from Oy. EFC. 7CA. New C/B ORIGINAL OY2/B30:5:17.2 RECEIVED D JUL 1917 8 X.2823 Re Car 7 CA. X 682 With reference to the contact breaker on 7 CA. would you please inform me whether you have… | ||
| img048 | Page 2 of a memo discussing cam finish, platinum point pressure, and the compression process for grey fibre material. | ||
| View original record | To EH. & EFC. from Oy. 2. Oy2/B30:6:17. (b) Whether the cam was well finished. (c) What was the pressure on the platinum points. The grey fibre used should be compressed in small squares of about .75… | ||
| img049 | Test report on the performance of Chassis 7 CA, covering the engine, clutch, fuel consumption, and springing. | ||
| View original record | To E.H. from R. c. to J. (crossed out) ORIGINAL RB/B4:7:17. RECEIVED 5 JUL 1917 6 X.682 Re Chassis 7 CA. X.2937AI was pleased to find that the valve gear on this car appeared to be quite silent. Even… | ||
| img050 | Performance and critique of shock dampers with varying damping effects. | ||
| View original record | To EH. from R. 2. R3/B4:7:17. X.762 road and a speed at which the car was at all unsteady. I understood that the shock dampers fitted had a certain amount of free range without any damping effect,… | ||
| img051 | Design and benefits of piston rings and aluminium pistons for car engines. | ||
| View original record | To E.P. ) from R. EH. ) c. to Commander Briggs. c. to J. After the War - looking ahead ORIGINAL R4/B4:3:17. X.682 Re Wing-Commander Briggs' Car. X.2809. X.2369.? X.2809.? RECEIVED 5 JUL 1917 On a… | ||
| img052 | Proposed modifications and issues for Commander Briggs' car, including camshafts, springing, and brakes. | ||
| View original record | To EP. & EH. from R. 2. X.2937 Commander Briggs also desires that we fit one of our new camshafts that we propose using in the "after the War" engines. This should not be the temporary arrangement but… | ||
| img053 | Wheel clearance defect on a Berwick & Co. body and proposing modifications for testing and post-war application. | ||
| View original record | To EP. & EH. from R. 3. R4/B4:7:17. In addition to this slight defect, I notice the body has been made by Berwick & Co. and has not the requisite clearance for the road wheel. Consequently, if the… | ||
| img054 | Cancellation notice for experiment X.2369A on a skirtless piston, which has been superseded by X.2369B. | ||
| View original record | EFC/AT5.7.17. X.2369A - CHASSIS 7 RINGED PISTON WITHOUT SKIRT. This Experiment can now be cancelled being considered as superceeded by X.2369B.- Chassis 7 Ringed Piston with skirt. E.F.C. EFC. | ||
| img055 | Experiment fitting a 7-ringed piston with a skirt to a 7CA engine. | ||
| View original record | R.R. 235a (200 T) (S.C. 536. 15-2-16) G. 1547. EFC/AT24.7.17. X.2369B.-7 RINGED PISTON WITH SKIRT. This experiment has been fitted to 7CA. | ||
| img056 | Report on a chassis piston experiment. | ||
| View original record | To EH. from EFC. EFC3/AT28.8.17. X.2369B. - Piston E.11640 with 6 Upper Rings & one Scraper Ring with Skirt Below Bottom Ring. Rings Nos.4 & 6 Pinned. (2nd Column of Supersheet E.10937). Will you… | ||
| img057 | Stating that 7-ringed pistons with skirts are superseded by 5-ring pistons and no further experimental work is needed. | ||
| View original record | EFC81/T11.4.18. 233 X. 2369B - 7 RINGED PISTONS WITH SKIRT These chassis pistons may be considered superceded by the 5 ring pistons and no further experimental work will be required. EFC. R.R. 2355… | ||
| img058 | From EFC to EH requesting a report on the X.2369B chassis piston experiment. | ||
| View original record | To EH. from EFC. EFC3/AT28.8.17. X.2369B. - Piston E.11640 with 6 Upper Rings & one Scraper Ring, with Skirt Below Bottom Ring. Rings Nos.4 & 6 Pinned. (2nd. Column of Supersheet E.10937). Will you… | ||
| img059 | Modifications, testing, and future designs for cross steering tubes. | ||
| View original record | To E.H. from R. c.c. to J. c.c. to Wor. c.c. to E.P. c.c. to Bv. X.2172. ORIGINAL. R6/B9:7:17 D 11 JUL 1917 RE CROSS STEERING TUBES. The small modification we have already made to the joint appears to… | ||
| img060 | Experimental improvements for cross steering tubes and the parts sent for testing. | ||
| View original record | To -Wer- from R. by EH. c. to J. X.2172 ORIGINAL RE CROSS STEERING TUBES. X.3128 With reference to the above, we are sending you one or two further improvements, experimental parts of which we want… | ||
| img061 | Required finish, fit, and extraction method for cross steering tube ball joints. | ||
| View original record | To By. } from Oy. EH. } BP. } X.2172 ORIGINAL oy1/B10:7:17. D 3 [STAMP: RECEIVED 11 JUN 1917] RE CROSS STEERING TUBE BALL JOINTS. I think I have already written that the plug in the end of the ball… | ||
| img062 | Post-war non-trembler coil ignition systems for cars fitted with self-starters. | ||
| View original record | COILIGN POST-WAR. NON-TREMBLER ADVANTAGES To Wor. for Mr. Ellis) from R. R2/B10:7:17. 1917 EH. C. to J. C. to By. ORIGINAL 11 JUL 1917 X.682, Re Battery Ignition for Cars, &c. X.3129. X.2642 Where a… | ||
| img063 | Magneto and battery ignition systems, specifically focusing on condenser size and placement to reduce sparking. | ||
| View original record | To Mr.Ellis & EH. from R. 2. R2/B10:7:17. ignition has the same lead and angular advance as the magneto ignition. This will result in the two ignitions being always synchronized, which may benefit the… | ||
| img064 | Benefits of synchronized battery and magneto ignitions over trembler ignition systems. | ||
| View original record | To Mr. Ellis & EH. from R. 3. R2/B10:7:17. present using. Not only would there be a considerable saving in cost, but there should be no troublesome trembler, and the battery and magneto ignitions can… | ||
| img065 | New experimental design for a cross-steering tube ball joint. | ||
| View original record | To Mr. from OY. Copy to Mr. EHI. " " EFC. " " EP. ORIGINAL! 3 14th July, 1917. OY1/14W. X3126 RE CROSS-STEERING TUBE BALL JOINT. I send herewith LeC.842 shewing a design for a new type of ball joint… | ||
| img066 | Agreeing to the standardization of an improved steering joint with a taper distance piece for repair and replacement cars. | ||
| View original record | To EH. from R. C. to J. [Strikethrough] C. to By. [Strikethrough] R2/B30:7:17. 3 ORIGINAL X.2172 RE STEERING JOINTS. With reference to your memo EH3/LG25:7:17, I agree to fitting the first type of… | ||
| img067 | Letter discussing the performance and tuning of tremblers and condensers for ignition coils. | ||
| View original record | TUNING TREMBLER COILS Ref Condensers (?) for Trembler Ign coils Tuning 312 gap St. Margaret's Bay. TO Mr. Hillis from R. c. to Clk. c. to HS. ORIGINAL RECEIVED 16 AUG 1917 Re - Tremblers. R10/W14817.… | ||
| img068 | Modifications to tremblers for ignition coils, with an accompanying sketch. | ||
| View original record | -2- Re - Tremblers. iron armature and increasing the inertia of the platinum carrying plate so that although the spring force used is not more than is necessary for a good secondary spark, the rate at… | ||
| img069 | With diagrams concerning the design of tremblers and their spring mechanisms. | ||
| View original record | -3- To Mr. Ellis from R. c. to Hl. c. to Clk. X3129 Re - Tremblers - contd. Further to R10/W14817. Compression Spring. Knife edge formed of 2 pins. what is standard distance. located by pin in slot.… | ||
| img070 | Unsatisfactory nature of using separate telescopic tubes for enclosing car engine valves. | ||
| View original record | R.R. 235B (200 T) (S.D. 408. 26-4-17.) Bm. 2/156/12. To EH. from R. c. to E. c. to BJ. ORIGINAL St. Margaret's Bay. Aug. 28th. 1917. RECEIVED X.3108. Re - Car Engine Valves. R15/W27817. I have… | ||
| img071 | Instructions for converting a battery ignition system to a non-trembler type on a 7-CA model. | ||
| View original record | 7C4 ORIGINAL St. Margaret's Bay. 3 Aug. 28th. 1917. [STAMP] 30 AUG 1917 [STAMP] RECEIVED To Mr. Hives from R. C. to CH. C. to BJ. X.3129. Re - Battery Ignition. R17/W27817. You will remember that I… | ||
| img072 | The placement of the starter switch for the after-the-war chassis, arguing for a dashboard push-button. | ||
| View original record | To EH. from R. c. to By. c. to BJ. ORIGINAL. St. Margaret's Bay. [handwritten] 5 Sept. 13th. 1917. Re - After-the-War Chassis. R3/W12917. [handwritten] X.682. X.2641 [stamp] RECEIVED [stamp of a clock… | ||
| img073 | Telephone confirmation about abandoning screwed valve caps and pressing forward with experiments for water pump designs. | ||
| View original record | Telephoned to Dover Sept. 18th. 1917. ORIGINAL CONFIRMATION. 20 SEP 1917 RECEIVED 5 X3132 X.3086 X3147 ROYCAR. DERBY X.3144. HIVES RE VALVE CAPS ABANDON SCREWED CAP ELLIOTT THINKS FAILURE DUE TO CREEP… | ||
| img074 | Confirmation of a message regarding the construction of a chassis for the New York Show and the building of new 'After-the-War' models. | ||
| View original record | ORIGINAL X.3185 BJ. from R. c. to Wor. c. to EH. St. Margaret's Bay. Sept. 21st 1917 RECEIVED Re - New York Show. R1/W21917. Below is confirmation of message telephoned to Miss. Elias this afternoon… | ||
| img075 | Experimental parts being returned from St. Margaret's, including a list and discussions on specific components. | ||
| View original record | EH. from E. c. to Clk. c. to Mr. Ellis. ORIGINAL West Wittering. 2 Oct. 15th. 1917. X.2061 Re - Experimental Parts returned from St. Margaret's. E1/W151017. RECEIVED Please note before leaving St.… | ||
| img076 | Experimental parts, including coils and a Bosch magneto, returned from St. Margaret's for analysis. | ||
| View original record | -2- Re - Experimental Parts returned from St. Margaret's. a view to getting the number of layers and turns of high tension and low tension wire, the guages of same, diameter of core, guage of core… | ||
| img077 | Issues with an M.L. Magneto causing engine pre-ignition and running backwards on certain car models. | ||
| View original record | For 7CA & 4A CB ORIGINAL By from R. (Struck through) C. to EH. (Struck through) C. to NP. (Struck through) C. to DJ. (Struck through) C. to Mr. Watson. R1/W4.11.17. 3 Re - M. L. Magneto. X. 3209. We… | ||
| img078 | Letter page regarding engine starting difficulty with an M.L. Magneto. | ||
| View original record | -2- Re - M. L. Magneto. engine by pulling it sharply over a compression, our engine being rather too heavy for anyone but a very strong man to swing in the usual way that small engines are started.… | ||
| img079 | Scheme from Mr. Royce for a combined spring and weight pressure float chamber needle. | ||
| View original record | ORIGINAL. FH. from E. X.3214 X.2768 F4/W17.11.17. 4. Re - Chassis Float Chamber. Mr. Royce wishes me to send you a scheme he has conceived for combining both spring and weight pressure on the float… | ||
| img080 | Request for a slow moving air valve for chassis No. 7-CA, following instructions from Mr. Royce. | ||
| View original record | FH. from E. ORIGINAL E2/W23.11.17. 3 X. 682 Re - Chassis No. 7-CA. In accordance with Mr. Royce's request would you please send a slow moving air valve for chassis 7-CA. E. RECEIVED 26 NOV 1917 | ||
| img081 | Design alteration for a float chamber valve needle and a request for testing a new version. | ||
| View original record | |||
| img082 | Cause of needle valve trouble on the 7-CA model. | ||
| View original record | EH. from R. c. to BJ. X.682 X.2768 ORIGINAL R1/W26.11.17. 4 Re - Needle Vavle Trouble - 7-CA. X.3225 We have come to the conclusion here that the trouble with the needle valve on 7-CA is due to the… | ||
| img083 | Persistent ignition trouble with a Remy magneto on chassis 7-CA and a request for a replacement Watford magneto. | ||
| View original record | R.R. 235 A (400 T) (S.C. 536. 15-2-16) G. 1546. EH. from R. ORIGINAL. R7/W10.12.17. X687. X.2814 Re - Chassis No. 7-CA. RECEIVED 13 DEC 1917 4 The ignition on this car has been a continual source of… | ||
| img084 | Piston failures and knocking issues on the 'After-The-War-Chassis'. | ||
| View original record | To R. from EH. c. to CJ. c. to E. c. to Ey. c. to Da. c. to EP. X. 2565. X.2369. EH1/LG.221018. X.2762 X.762. X.3014 X.3082 X.2565 X.3129. X.2748 X.2369 - RE AFTER-THE-WAR-CHASSIS - We understand it… | ||
| img085 | Fitting Trauffault shock absorbers and developing a similar in-house design for the post-war chassis. | ||
| View original record | R.R. 235A (500.T) (S.D. 408. 26-4-17.) Bm. 2/156/13. Comtd:- Officials who have to sell the cars, might give their opinions whether piston knocks can be accepted. X. 762+ (2) SHOCK ABSORBERS. 7-CA. is… | ||
| img086 | Telegram confirmation regarding the despatch of a drawing for an experimental piston and rods for a chassis. | ||
| View original record | R CLASSIC TRYCASTER 9x3 967 AJO- ON PISTONS CONFIRMATION OF TELEGRAM. X.3400 26th October, 1918. 24 [Signature] ROYCAR DERBY. ORIGINAL. [Stamp: RECEIVED with clock face] HIVES WE ARE DESPATCHING TODAY… | ||
| img087 | Design considerations for a new die-cast chassis piston. | ||
| View original record | To WH. from E. Copy to BY. " " DA. " " EFC. ORIGINAL. 2. 26th October, 1918. E1/G261018N 1918 [STAMP: RECEIVED with clock face] X.3400 RE CHASSIS PISTON. We attach herewith confirmation of our… | ||
| img088 | Design of experimental pistons with diagonal webs and a specific piston pin, requiring shorter connecting rods for chassis testing. | ||
| View original record | To EH. from E. [Handwritten top] NOTED EXP DIE CAST PISTONS IN HAND x TEST ON 2-TCS ALSO NEW SCHEMES [Top Right] E1/G261018 contd. [Handwritten right margin] III a 7A being a scraper, which should… | ||
| img089 | Modifications to the aluminium piston design to eliminate piston knocks. | ||
| View original record | To EH. from R. Copy to CJ. ORIGINAL X.3402. X.3400 RE ALUMINIUM PISTON FOR CAR. 31st October, 1918. 3 R1/G311018. D [STAMP: 4 NOV 1918 with Roman numerals in a circle] With reference to piston knocks,… | ||
| img090 | Design improvements for a new piston to reduce knocking and wear. | ||
| View original record | To EH. from R. -2- RL/G311018 Contd. sure from our own observations, that we can considerably reduce the tendency to knock in the new piston, and by leaving a well lubricated surface the wear should… | ||
| img091 | Mr. Royce's requested improvements to the ball end for steering on the 40/50 HP chassis. | ||
| View original record | [Handwritten] and AFTER the WAR DOM CHASSIS PARK TEST 2Y H LB [Typed] To BY. from DA. Copy to EH. " " EFC. [Stamped] ORIGINAL [Typed] 25th November, 1918. DA4/G251118. X 341(8) RE BALL END FOR… | ||
| img092 | Instruction on testing the piston pin fit for die-cast aluminium pistons for chassis. | ||
| View original record | To E.H. from E. Copy to DA: " " EPC. ORIGINAL 3400' RE DIE CAST ALUMINIUM PISTON FOR CHASSIS. Referring to the plain trunk diagonal web type of piston recently instructed for test, would you kindly… | ||
| img093 | Urgent request for drawings and data regarding RE 7 CA cam shapes, including valve displacement curves. | ||
| View original record | BY. from E. Copy to EH. URGENT. ORIGINAL. 4th January, 1919. E2/G4119. 682. RE 7 CA CAM SHAPES. We have a drawing E.13667 shewing the shape of the exhaust cam fitted to chassis 7 CA. Would you please… | ||
| img094 | The testing of shorter pattern car connecting rods for vibration before ordering forgings. | ||
| View original record | R.R. 235 B (200 T) (S.E. 527, 21-2-18) G. 2129 COPY ORIGINAL To BY. from R. Copy to CJ. 4th. January, 1919. R1/G4119. RE CAR CONNECTING ROD. It is thought that the shorter pattern is a decided… | ||
| img095 | Cam shapes on chassis 7 CA and their valve lift characteristics. | ||
| View original record | To EY. from E. Copy to EH. URGENT. ORIGINAL 3 7th January, 1919. E4/G7119. RE CAM SHAPES ON CHASSIS 7 CA. X.682. RECEIVED 9 I 1919 In connection with transmitting information regarding cam forms,… | ||
| img096 | Requesting a valve lift chart and calculations for the 7 CA cam movement to compare against the standard design. | ||
| View original record | To BY. from E. [Handwritten annotations]: 23UP099 MAD ADT E4/G7119 Contd. [Graph labels]: STANDARD VALVE LIFT 7 CA CAM LIFT PLOTTED IN LIEU OF VALVE LIFT. So far as we recollect, Mr. Stent made the… | ||
| img097 | Alterations for the 40/50 HP chassis and the associated approval process for the draughting work. | ||
| View original record | To WOR. from E. COPY to BY. " " BA. " " EH. " " EP. D RECEIVED 10 JAN 1919 ORIGINAL. 8th January, 1919. E2/G8119. RE 40/50 H.P. CHASSIS. Please find attached a specification of the alterations to be… | ||
| img098 | Index for a report on alterations to the 40-50 HP present type chassis. | ||
| View original record | To BY.) " DA.) from R. " EH.) Copy to CJ. " WOR. " EP. 18th December, 1918. R7/G181218. Compiled by Mr.Elliott. RE ALTERATIONS TO 40-50 H.P. PRESENT TYPE CHASSIS. OBJECT:- The object of this report is… | ||
| img099 | Specifications for three types of experimental radiators to be tested on a bumping rig. | ||
| View original record | To BY.DA.& EH. from R. -2- R7/C181218 Contd. (1) RADIATORS. Three types of experimental radiators to the following specification should be tested comparatively on the bumping rig:- (1) Round tube… | ||
| img100 | Drawing of a stitched cover or shroud. | ||
| View original record | ", | ||
| img101 | Various radiator designs, specifications and testing requirements. | ||
| View original record | To BY.DA.& EH.from R. -3- R7/G181218 Contd. Mr. Johnson's and Sales' approval of the radiator as it will appear with this tank will be required. The difficulty will probably be in connection with this… | ||
| img102 | Design considerations for valves and valve gear, including materials and performance. | ||
| View original record | To BY.DA.& EH.from R. -3A- R7/C181218 Contd. (1A) VALVES AND VALVE GEAR. The aero type valves with 30° seats, the higher lift cams, and rockers with large rollers, fitted to chassis 7 CA should be… | ||
| img103 | Piston design policy, detailing the benefits of aluminum pistons and outlining four different types for testing. | ||
| View original record | To BY.DA.& EH.from R. -4- R7/31S1218 Contd. (2) PISTONS. Our policy with regard to the treatment of the piston question should be somewhat altered. We must endeavour to give pistons more clearance and… | ||
| img104 | Design improvements for battery ignition, connecting rods, and crankshafts. | ||
| View original record | To BY.DA.& EH.from R. -5- R7/G121218 Contd. (3) BATTERY IGNITION. The R.R. aero jump spark coil is to be used in place of our present trembler. The existing distributor and low tension contact maker… | ||
| img105 | Design changes for the front flywheels, magneto, and air pump. | ||
| View original record | To BY.DA.& EH. from R. -6- R7/G181218 Contd. (7) FRONT FLYWHEELS. The absence of balance weights, the lighter crank-shaft, lighter connecting rods, and lighter pistons, all help towards the reduction… | ||
| img106 | Experiments and modifications for carburation systems and clutch float chamber design. | ||
| View original record | To BY.DA.& EH. from R. -7- R7/G181218 Contd. (10) CARBURATION. Experiments should be made to overcome distribution troubles at present being experienced with the use of the heavy fuel now being… | ||
| img107 | Issues and resolutions for the clutch, gearbox, and back axle. | ||
| View original record | To BY.DA.& EH. from R. -8- R7/G181218 Contd. (11) CLUTCH. The cotton fabric oil lubricated clutch at present standard on the car is considered quite satisfactory, and should be continued in… | ||
| img108 | Wheel types (Rudge-Whitworth, Michelin, Dunlop) and specifications for shock dampers. | ||
| View original record | To BY.DA.& EH.from R. -9- R7/G181218 Contd. (14) WHEELS. Rudge-Whitworth and Michelin wheels Mr. Royce thinks will supply all customers wants. It is not desired to use Dunlop wheels, which are thought… | ||
| img109 | The electric starter position, wiring scheme, and instrument board arrangement. | ||
| View original record | To BY.DA.& EH. from R. -10- R7/G181218 Contd. (16) ELECTRIC STARTER. A new position is required for the starter switch, and Mr. Royce decided that this mechanism could probably best be placed on the… | ||
| img110 | From Mr. Royce detailing two proposals for a distributing board for electrical circuits. | ||
| View original record | To BY. DA. & EH. from R. -11- R7/G181218 Contd. Mr. Royce suggests a distributing board in the form of a hinged board hanging from the instrument board, for the purpose of inspecting connections made… | ||
| img111 | The design and construction of an electrical terminal pressed from sheet metal, including sketches. | ||
| View original record | To BY, DA, & EH.. from R. -12- R7/C181218 Contd. must at first be standardised throughout the car. Various type of terminals were discussed, in which the cleaned end of the conductor was gripped… | ||
| img112 | Discussions on pistons, axles, and gear manufacturing following a visit to West Wittering. | ||
| View original record | To WOR. from E. Copy to HX. " DA. " MH. " EPC. " EP. RE VISIT OF MESSRS. WORMALD AND HIVES TO WEST WITTERING OF 12th AND 13th DECEMBER. In connection with the above, there are a few notes concerning… | ||
| img113 | Panel milling machinery and modifications to the 'Condor' aero engine's induction system, cylinder heads, and carburettor. | ||
| View original record | To WOR. from E. -2- E3/G9119 Contd. In a recent article on spiral bevels in the Automobile Engineer reference is made to adapting a Bilgram straight bevel cutter for cutting spiral bevel gears. PANEL… | ||
| img114 | Request to experimentally determine if the throttle spring provides sufficient force and to submit a new design if it doesn't. | ||
| View original record | To WOR. from E. -3- E3/G9119 Contd. Would Mr. Hives determine experimentally, whether the spring provided as in item (c) for opening the throttle, gives sufficient force, and if not, would Mr. Day… | ||
| img115 | Record of a conference with Mr. Royce regarding the 'After the War' Chassis, experimental work, and design alterations. | ||
| View original record | To M. from E. Copy to THB. " " DA. " " DY. " " GY. " " EFC. 'AFTER THE WAR' CHASSIS (2 30th January, 1919. ORIGINAL. El/G30119. X.2565 RE CONFERENCE OF MR. ROYCE AND MESSRS. BARRINGTON, BAILEY, DAY,… | ||
| img116 | Aero engine flight tests, car construction, radiators, and battery ignition systems. | ||
| View original record | TO R. from E. -2- E1/G30119 Contd. (1) OBSERVATION OF AERO ENGINES ON ACTUAL FLIGHT TESTS. X.3502. It is considered necessary for R.R. service testers to go up in the air with machines. Mr. Royce says… | ||
| img117 | From 'E' to 'R' discussing ignition, lighting, battery, and chassis fuel systems. | ||
| View original record | To R. from E. -3- it should be made certain that the high tension rotor contact on the distributor is late, and the tail sufficiently long to avoid the danger of firing the engine in the reverse… | ||
| img118 | Design suggestions for a fuel mechanism, anti-theft lock, valve gear covers, and foot warmers. | ||
| View original record | To R. from E. -4- E1/G30119 Contd. mechanism. He further suggests using only one air valve, which would shut off a little intermediate chamber from which the engine driven pump was sucking, as shewn… | ||
| img119 | Continued memorandum discussing design approvals for foot warmers, fenders, luggage carriers, starting handles, and valances. | ||
| View original record | To R. from E. -5- El/G30119 Contd. Mr. Royce approved of the suggestion to leave a union of about .625" diameter on the exhaust pipe for this purpose. Mr. Olley will make enquiries as to what foot… | ||
| img120 | Continued memo page discussing bodywork, specifically tool box formation and a window control method to reduce rattles. | ||
| View original record | To R. from E. -6- E1/G30119 Contd. mounting or dismounting from the car. This outside valance in combination with the inside valance, supplies a convenient means of forming tool boxes on those cars… | ||
| img121 | Specification of alterations to be made to the 40/50 HP chassis. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X 2269 To Wor. from E. c. to BY. c. to DA. c. to EH. c. to EP. 8th January 1919. E2/C8119. RE 40/50 H.P. CHASSIS Please find attached a… | ||
| img122 | Alterations and experimental work for the 40-50 HP present type chassis. | ||
| View original record | To EY } BA } from R. EH } c. to CJ. c. to WOr c. to EP. 18th December 1918. R7/G181218. RE ALTERATIONS TO 40-50 H.P. PRESENT TYPE CHASSIS OBJECT:- The object of this report is to setout as far as… | ||
| img123 | Piston policy, detailing the advantages of aluminium pistons and outlining four different designs for testing. | ||
| View original record | TO BY, DA & EH from R. -4- R7/G181218. Contd (2) PISTONS. X.2484 Our policy with regard to the treatment of the piston question should be somewhat altered. We must endeavour to give pistons more… | ||
| img124 | State of Dunlop detachable wheels on car 7 CA and proposing standardization on Michelin wheels. | ||
| View original record | to BY. from R. Copy to C.J. " W.OR. " EF. " EH. 9th January, 1919. RE WHEELS ON CAR 7 CA. On Tuesday I took off all the wheels from 7 CA. to examine the state of the hubs, which are Dunlop detachable… | ||
| img125 | Difficulty jacking up the front wheels on chassis 49 GB and the approved alteration. | ||
| View original record | To BY. from E. Copy to DA. REH (Struck through) EFC. RECEIVED 11 JAN 1919 (Stamp) ORIGINAL (Stamp) X.2631 AHI9BAC 8294 9th January, 1919. ES/G9119. RE JACKING UP THE FRONT WHEELS ON CHASSIS 49 GB.… | ||
| img126 | Visit to discuss pistons, axles, and gear manufacturing for the 40/50 HP chassis. | ||
| View original record | To WOR. from E. Copy to HY. " " DA. " " EH. " " EFG. " " EP. ORIGINAL. RECEIVED EX. 8th January, 1919. E3/G9119. X.2565 RE VISIT OF MESSRS. WORMALD AND HIVES TO WEST WITTERING OF 12th AND 13th… | ||
| img127 | Panel milling machines and proposed alterations to the Condor aero engine's induction system, cylinder head, and carburettor. | ||
| View original record | To WOR. from E. 9/1/19 Contd. E3/G9119 Contd. In a recent article on spiral bevels in the Automobile Engineer reference is made to adapting a Bilgram straight bevel cutter for cutting spiral bevel… | ||
| img128 | The design and supply of a speedometer drive for the 500 'After the War' 40/50 HP chassis. | ||
| View original record | To EH. from E. COPY to Wor. BY. FP. DA. EPC. RECEIVED ORIGINAL W.T.A 11th January, 1919. E3/C11119. X.2565. X.1809 RE SPEEDOMETER DRIVE ON 500 "AFTER THE WAR" 40/50 H.P. CHASSIS. Would you kindly note… | ||
| img129 | Comparing the weight and strength of square tube bonded radiators versus round tube radiators. | ||
| View original record | TO DY. from R. Copy to EH. [STAMP] RECEIVED 20 JAN 1919 [STAMP] ИОННОУРТСНОК OAR WFA [STAMP] ORIGINAL 17th January, 1919. R3/G17119. RE RADIATORS. X.3456 It appears that the square tube bonded… | ||
| img130 | Expecting to receive a model connecting rod for a car engine. | ||
| View original record | To BY. from R. Copy to Gd. " " EH. ORIGINAL 17th January, 1919. R2/G17119: 409 - Y8 X 3400 RE CAR CONNECTING ROD. I am expecting to receive a model connecting rod for the car engine with short centres… | ||
| img131 | Clutch experiments and a proposal for a progressive clutch design using multiple springs. | ||
| View original record | To EH. from E. Copy to RA. " " RY. " " EFC. ORIGINAL RECEIVED 6 JAN 1919 RE CLUTCH EXPERIMENTS. A characteristic of the common methods of operating clutches to-day, is that the movement of the pedal… | ||
| img132 | From 'E' to 'EH' detailing Mr. Royce's suggestion to improve clutch take-up by introducing flexibility into the anchorage. | ||
| View original record | To EH. from E. El/G23119 Contd. Mr. Royce points out actually that any flexibility in the existing clutch anchorage of the big car is, of course, acting as a means of modifying the engagement pressure… | ||
| img133 | Positioning and specifications for starter batteries, including a critique of an existing design. | ||
| View original record | To EFC. from R. Copy to CJ. " " BY. " " EH. X.664. ORIGINAL. RECEIVED X664. RE STARTER BATTERIES. I have discussed the matter with Mr. Bailey of starter batteries. Apparently, there are two positions… | ||
| img134 | Specifications required for the production of trial batteries. | ||
| View original record | To EFC. from R. -2- R5/G1219 Contd. so that you can give them the whole particulars which they will require to make us a few trial batteries. These people are used to making large cells, and they are,… | ||
| img135 | Ignition system for a new experimental production car chassis. | ||
| View original record | To EFC. from R. Copy to C.J. EH CP X.3129 ORIGINAL 1st February, 1919. 2 R4/G1219. RE PRODUCTION CAR IGNITION. RECEIVED It is imperative that the new experimental chassis be fitted with exactly the… | ||
| img136 | Carburettor and ignition system adjustments for improved slow running and preventing engine backfiring. | ||
| View original record | TO EFC. from R. -2- R4/G1219 Contd. the spiral jet which has been fitted into this carburettor, does not give such good slow running as the usual plain taper one. If Mr. Hives thinks it is this… | ||
| img137 | Distributor make ratio and ignition timing, with a supporting diagram. | ||
| View original record | To EFC. from R. -3- R4/G1219 Contd. My scheme is that the make ratio is made as large as convenient, and assuming that the distributor moves exactly with the low tension timer, and that the… | ||
| img138 | Telegram specifying that new short connecting rods should be white-metalled directly onto steel without a bronze shell. | ||
| View original record | R.R. 144A (48 B.) (SC. 573. 25.2.16) E.P. 1270. ROLLS-ROYCE, Limited. TELEGRAM RECEIVED BY TELEPHONE. 5 Time Received: 7.57 pm Date: 6-2-19 To: Roycar Dy By: L. Overton from: West Wittering 6-0 Barley… | ||
| img139 | Past trials and future tests for a vacuum feed gasoline system. | ||
| View original record | To NM. from R. Copy to CJ. " " EH. " " SRN. 4th February, 1919. R12/G4219. RE VACUUM FEED FOR GASOLINE. x3603 Thank you for your memo(NA1/G16119) re vacuum feed for gasoline. We have tried this in the… | ||
| img140 | Agreeing to continue using whitemetalled bronze bushes for connecting rods on the 40/50 HP chassis. | ||
| View original record | To EH. from R. Copy to CJ. ORIGINAL RECEIVED RE SHORT CONNECTING RODS FOR 40/50 H.P. CHASSIS. HE. I agree that for the immediate future we stick to our whitemetalled bronze bushes for connecting rod… | ||
| img141 | Likely cause of a collapsing radiator and comparing the performance of round brass tubes versus square or hexagon copper tubes. | ||
| View original record | To EH. from R. Copy to SJ. ORIGINAL 12th February, 1919. R12/G12219.x3 RECEIVED 15 FEB 1919 X.3456.RE 49 GB. RADIATOR COLLAPSING. This is not as serious as at first sight. The collapse of tubes is not… | ||
| img142 | The reproduction of the 40/50 HP car ignition system. | ||
| View original record | To EFC. from R. Copy to CJ. ORIGINAL X.2566 X.3129 RE PRODUCTION OF 40/50 H.P. CAR IGNITION I do not want you to make a new sized coil and cannot see any reason for wishing to reduce the ohmic… | ||
| img143 | Continued memo from 'R.' to 'EFC' regarding timer gaps, manufacturing sets, and new ignition for the 20 HP model. | ||
| View original record | To EFC. from R. -2- Rl/G12219 Contd. timer gap .020" = .5 m/m wearing away to .025" = .6 m/m; Then let us do all to prove this right, and make a sound job of constructing 2000 sets, 1500 for current… | ||
| img144 | Mr. Royce's remarks and required modifications for several 40/50 HP chassis piston designs. | ||
| View original record | To BY. from E. Copy to Mr. " " DA. " " EFC. RECEIVED 27 FEB 1919 ORIGINAL. 25th February, 1919. E3/G25219. RE 40/50 H.P. CHASSIS PISTONS. Handwritten notes: X.3400 X.2448 X.1799 Referring to your memo… | ||
| img145 | Compression ratios and carburettor settings for post-war 40/50 HP chassis. | ||
| View original record | PHOTOGRAPH C/R OF POST WAR 40/50 (LOW & HIGH COMPRESSION) To EH. from R. Copy to CJ. ep By ORIGINAL 25th February, 1919. R6/G25219. EH RE 40/50 H.P. CHASSIS. COMPRESSION RATIOS. We have telegraphed… | ||
| img146 | Design points for a die-cast type piston with high and low piston pins for a 40/50 HP chassis. | ||
| View original record | To Br. from R. Copy to EFC. LIT. ORIGINAL 6th March, 1919. El/G6319. X.34008/c RE 40/50 H.P. CHASSIS - DIE CAST TYPE PISTON WITH HIGH AND LOW PISTON PINS. 1919 RECEIVED In reply to your memo… | ||
| img147 | Design points for pistons and requesting a revised blueprint. | ||
| View original record | To BY. from E. -2- E1/G6319 Contd. (6) No webs are shewn in the interior of the pistons on the sections, and the outside elevation shews them dotted. These webs should be used in all pistons of this… | ||
| img148 | Ideas for improving gear changing, including synchronisation and free-wheel arrangements. | ||
| View original record | To EH. from R. Copy to CJ. " " SRN. " " PN. " " HN. " " Mr.Claremont. EASY CHANGE & CAR IDEAS from Hs ORIGINAL RECEIVED 11th March, 1919. R6/G11319. RE CHANGING GEAR. -------------------- The idea you… | ||
| img149 | Modifications to a gear changing mechanism, including a free wheel ratchet and a positive jaw clutch. | ||
| View original record | To EH. from R. CHANGING GEAR CONTD. (2) R6/G11319. the side shaft carrying the wheels. The engine then accelerates the clutch, and takes up the drive, but possibly with a slight shock, unless the… | ||
| img150 | Operation of an electrically assisted clutch and gear changing mechanism. | ||
| View original record | To EH. from R. CHANGING GEAR CONTD. (3) and jaw clutch, and also the friction and jaw clutch combination. For the moment we may consider that as we have electrical energy available on all chassis, we… | ||
| img151 | Proposed carburettor design, potential patent issues, and comparison with the current model. | ||
| View original record | To EH. from R. Copy to C.J. " " SRN. RE CARBURETTORS. With reference to carburettors, the design you propose appears to me to be imperfect in many ways, but if we can manage it, I will arrange for Mr.… | ||
| img152 | Letter providing feedback on a carburettor sketch, discussing its novelty, patent potential, and suitability for car versus aircraft engines. | ||
| View original record | To EH. from R. Copy to CJ. " " SRN. 11th March, 1919. (no copy) R5/G11319. X 3511 ORIGINAL RE CARBURETTORS. RECEIVED With the sketch of the carburettor that you sent us you did not suggest that there… | ||
| img153 | Carburettor design, proposing a new system with a diffuser jet to improve performance over existing models. | ||
| View original record | To EH. from R. CARBURETTORS CONTD. (2) R5/G11319. and the varying speed depending upon the road dangers. I have sent Mr. Southern a sketch of a carburettor arrangement which may turn out useful, and… | ||
| img154 | From R. to E.H. continuing a discussion on carburettor design and performance. | ||
| View original record | To E.H. from R. CARBURETTORS CONTD. (3) purposes if a very old one can be found in the stores, and be arranged with a diffuser jet with sufficient hot water and tested on a six-cylinder engine,… | ||
| img155 | Design of a proposed carburettor for a chassis. | ||
| View original record | To EH. from E. ORIGINAL 17th March, 1919. E2/G17319. RE CARBURETTOR FOR CHASSIS. S. D. 21 MAR 1919 RECEIVED Referring to your memo concerning the proposed carburettor, of which you sent me a blue… | ||
| img156 | Hand-drawn schematic of a carburettor or similar fuel-air mixing device with labelled components. | ||
| View original record | Vacuum RR patent air damped lifting piston atmosphere lever for throttle control to rearward 3 cylinders to forward 3 cylinders Throttle Diffuser jet. intake Sleeve, which is lifted by piston petrol… | ||
| img157 | Test report on Car 7-CA discussing engine performance with a partially blocked radiator in cold weather. | ||
| View original record | To EH. from R. c. to CJ. c. to EP. c. to JCR. COPY. ORIGINAL RE CAR 7-CA. I had occasion to use the big car the other day when the temperature was about 40°F. We blocked off about .6 of the radiator… | ||
| img158 | Radiator modifications and the performance of car 7-CA, specifically regarding an extra water jacket on the induction pipe. | ||
| View original record | To EH. from R. Car 7-CA (2) R1/G13.3.19. suggest that we fit on the inside of the radiator, next to the fan, a complete piece of ply the full size of the radiator with a round hole in the centre the… | ||
| img159 | Testing Michelin wheel studs, including thread direction and preventing wheel creep. | ||
| View original record | To E.Y. from E. Copy to E.H. " " D.A. " " E.F.C. ORIGINAL. X.3482, RE MICHELIN WHEEL STUDS. Please find attached drawing No. Lec.1067 dealing with the question of testing studs for Michelin wheels.… | ||
| img160 | Requesting tests to determine the necessity and type (right or left hand) of threads for back nuts on studs. | ||
| View original record | To BY. from E. -2- E4/G17319 Contd. Additionally, there should be a further one between the detachable nut and the stud. After a consideration of the relative weight on, the diameter of, and the… | ||
| img161 | Requesting an experiment to test the 40/50 HP clutch with different driven members. | ||
| View original record | To EH. from E. Copy to EFC. ORIGINAL E4/G24/3/19. X.3523A/B RE 40/50 H.P. CLUTCH. Would you kindly note that Mr Royce would like an experiment made to test the 40/50 H.P. clutch with a very light… | ||
| img162 | Suitability of a Weston instrument for a chassis, comparing it to other models. | ||
| View original record | To EFC. from R. Copy to CJ. ORIGINAL X.1362 RE WESTON INSTRUMENT FOR CHASSIS. RECEIVED With reference to the model you have sent us, 354, this is not, I think, so desirable as the permanent magnetic… | ||
| img163 | Modifications and repairs for Mr. Claremont's cars. | ||
| View original record | To BJ. from R. To EP. copy to CJ. c. to HM. c. to BY. ORIGINAL R2/G24.S.13. 1.3.19 Re Fitting S.Starters to early 40/50 X.3568 MR. CLAREMONT'S CARS. With reference to the light four-seater car… | ||
| img164 | Thermometer to test a 40/50 HP car and to source temperature measuring devices. | ||
| View original record | To EH. from E. ORIGINAL RE TEMPERATURE RECORDERS FOR CARS. Would you kindly note that Mr. Royce instructs me to write to you as if I were a customer, and ask for a thermometer to test whether my 40/50… | ||
| img165 | Solutions for monitoring and controlling engine water temperature, including thermometers and radiator louvres, and the impact of low-grade petrol. | ||
| View original record | To EH. from R. c. to CJ. ORIGINAL. R5/C3.4.19. RE INSTRUMENT TO RECORD WATER TEMPERATURE, We are very pleased indeed that you have been able to obtain a thermometer suitable for the instrument board,… | ||
| img166 | Piston design, specifically the location of the piston pin and the use of shorter connecting rods to reduce piston knock. | ||
| View original record | To RY. from R. Copy to Ed. " " EH. ORIGINAL. RE PISTONS. I have received Mr. Hives' note with reference to the piston knocks. It will be understood that with reference to this subject that we have… | ||
| img167 | Feedback on a car's clutch, brake, and ignition performance after a test run. | ||
| View original record | To EH. from R. c. to CJ. ORIGINAL R6/G3.4.19. 3rd. April 1919. ② X.682✓ X.3532 X.3129 RE 7-CA. In preparing 7-CA for a fairly long run last week, I noticed several little points about the clutch which… | ||
| img168 | Manufacturing of pistons using two scraper rings and die castings in Mr. Hall's alloy. | ||
| View original record | To BY. from R. - PISTONS-CONTD. the oil working up to use two scraper rings with perforations, and the upper rings well away from the top of the piston. All this, I understand, has been arranged for,… | ||
| img169 | Approval to use a wiring tube on the 40/50 HP chassis, similar to one made for aero engines. | ||
| View original record | To Mr. from E. Copy to CJ. " " HY. " " BR. " " EFC. ORIGINAL. D RECEIVED 10 APR 1919 X.3129. RE 40/50 HP. CHASSIS WIRING TUBE FOR BATTERY HIGH TENSION WIRES. Kindly note that Mr. Royce approves of… | ||
| img170 | Mr. Royce's criticisms of scheme No.365 for a 40/50 HP floatchamber, requesting a new design. | ||
| View original record | To BY. from E. Copy to CJ. ORIGINAL RE 40/50 H.P. FLOATCHAMBER. Referring to your memo BY2/P2/4/19, please find attached your scheme No.365, on which Mr. Royce has written a number of criticisms.… | ||
| img171 | Fuel consumption tests on model 49GB and methods for heating the air entering the carburetter. | ||
| View original record | To EH. from R. ORIGINAL R4/G14.4.19. X.3056.- X.2681.- RE CONSUMPTION TESTS ON 49 GB. Your consumption tests on 49GB are most interesting. We do not know how many tests you have made with hot air to… | ||
| img172 | Modifications to the 40/50 HP chassis clutch brake. | ||
| View original record | To BM. from E. Copy to CL. " " WH L " " EFC. " " DM. RECEIVED MAY 2 1919 ORIGINAL. x.3546. E1/G28/4/19. 2 RE 40/50 H.P. CHASSIS CLUTCH BRAKE. We send you herewith drawing Lec.1079 shewing some… | ||
| img173 | Minutes from a conference regarding the 40/50 HP chassis, detailing instructions for various departments. | ||
| View original record | To. H.N. from E. Copy to C.J. " " R.M. " " D.V. " " E.F.C. ORIGINAL RECEIVED 7 MAY 1919 X.2565 RE 500 - 40/50 H.P. R.R. CHASSIS AND VISIT OF MESSRS. BARRINGTON AND HIVES TO MR. ROYCE OF THE 29th AND… | ||
| img174 | Design specifications for a new hand-controlled louvre frame for the radiator of a 40/50 HP chassis. | ||
| View original record | RE 500 - 40/50 H.P. R.R. CHASSIS. -1- E6/01/5/19. X 3456. X 3499 (1) RADIATORS - It is not apparently possible to make any immediate alterations to the radiators which will facilitate the fitting of a… | ||
| img175 | Specifications for radiators, thermostats, thermometers, pumps, and speedometers. | ||
| View original record | (1) RADIATORS (CONTD.) -2- preferably operated from the dash, and should also be made if possible, so as to be adapted afterwards for operation by a thermostat. The thermostat when fitted in a… | ||
| img176 | Hand-drawn schematic of a speedometer drive assembly. | ||
| View original record | VEE PULLEY SAME SIZE AS DRIVING SWIVEL PIN FLEXIBLE DRIVE 4 TO 1 SPUR GEAR RR SPEEDOMETER DRIVE H P Ld G 612 F4200 (L) 'A' 1M' 25-10-18/O 2517 | ||
| img177 | Design of the speedometer drive and the preferred finish for instrument dials. | ||
| View original record | (4) SPEEDOMETER AND SPEEDOMETER DRIVE (CONTD.) -3- E6/G1/5/19. It is understood with regard to the speedometer drive that a design is in hand by Mr. Bailey in Derby. Mr. Royce thinks that even the… | ||
| img178 | Specifications for the finish of instruments and controls, and the layout of the instrument board. | ||
| View original record | (5) FINISH OF INSTRUMENTS AND CONTROLS (CONTD.) -4- letters and numbers. The metal work of the instruments should be a black finish with egg shell surface, similar to the Weston instruments. All of… | ||
| img179 | Notes on the design of the instrument board, bonnet clips, and carburettor float feed. | ||
| View original record | (6) INSTRUMENT BOARD (CONTD.) -5- E6/C1/5/19. ammeter, the speedometer and clock, in the order named, trailing out to the left. The starter switch should be as on 7 CA, operated by the foot. This… | ||
| img180 | Technical notes on carburettor, shock dampers, back axle, brakes, and ignition systems. | ||
| View original record | (8) CARBURETTOR FLOAT FEED (CONTD.) -6- E6/G1/5/19. understood, scraps the existing floatchamber casting. It is thought that the same fitting in a slightly different form can be made to provide a… | ||
| img181 | The ignition ballast resistance coil design and the replacement of the C.A.V. lighting set with a Lucas system. | ||
| View original record | (E1) IGNITION (CONTD.) -7- E6/G1/5/19. contact breaker cover has been discussed, but the design for this also has apparently never been submitted to Mr. Royce. The ballast resistance will require… | ||
| img182 | Hand-drawn schematic of a battery-powered ignition system, showing the placement of the ballast resistance. | ||
| View original record | DASHBOARD BALLAST RESISTANCE NON TREMBLER COIL LOW TENSION CONNECTIONS R.R. IGNITION (BATTERY) BALLAST RESISTANCE CARRIED UNDERNEATH COIL | ||
| img183 | Order for Lucas ignition sets and the specifications for a portable lamp. | ||
| View original record | (12) IGNITION SET (CONTD.) -8- E6/C1/5/19. We shall want 500 sets of Lucas material. It is thought that the switch box made by this latter firm can be quite well accommodated on the instrument board.… | ||
| img184 | Portable lamps and piston design, including a defective sample, over-oiling, and piston ring pin length. | ||
| View original record | (13) PORTABLE LAMP (CONTD.) -9- E6/G1/5/19. provided with the chassis, or as an extra item at the option of the customer and at the customer's expense, but the plug connection for same should be… | ||
| img185 | Fault with steel stiffening plates on cast-iron pistons and recommending their removal. | ||
| View original record | To R. from EH. c. to CJ c. to BN. c. to E. c. to BY. c. to Hm. X.2535. RE LIGHTING CAST-IRON PISTONS USED ON REPAIR CARS It is a frequent complaint on these cast-iron pistons that after the engine has… | ||
| img186 | Adoption of Michelin disc wheels over Dunlop wire wheels and wooden wheels. | ||
| View original record | WHEELS MICHELIN DUNLOP R-W WOOD ORIGINAL To Ed. from R. 'Copy to " EH. X.3482 X.424 RE YOUR MEMO CJ/JS14/D29/5/19. You will remember that my recent recommendations for our cars are, adopt Michelin… | ||
| img187 | Tyre and rim standards, including the difficulty of fitting them. | ||
| View original record | To CJ. from R. -2- R6/G2/6/19 Contd. R to be fairly satisfactory. Those which were found to have rotted were not made by us, or under our control, but were constructed by the detachable rim makers. As… | ||
| img188 | The possible use of a jelly mixture with benzol, detailing experiences with different brands. | ||
| View original record | To C.J. from R. Copy to B.N. " " E.H. ORIGINAL RECEIVED X.53 RE REPORT OF THE POSSIBLE JELLY MIXTURE WITH BENZOL. It is quite evident that benzol should not be used for any important work until we… | ||
| img189 | Proposal and specifications for illuminating the instrument board on the 40/50 HP chassis. | ||
| View original record | 40/50 ORIGINAL 02/62 3 To Ell. from E. Copy to Ed. " " RM " " DA " " HY. " " EFC. X.3615. RE ILLUMINATING THE INSTRUMENT BOARD. X 1362 E9/G1/8/19 . 1919 RECEIVED The question of illuminating the… | ||
| img190 | Query regarding an oil leak observed at the torque tube joints on the back axle of chassis 7 CA. | ||
| View original record | To EH. from E. Copy to CJ. " " BN. " " EFC. 7CA ORIGINAL. RE BACK AXLE - CHASSIS 7 CA. X.682 X.3457 3 While inspecting chassis 7 CA it was noticed that the torque tube joints, namely, the intermediate… | ||
| img191 | Design of rear spring pivots for the 40/50 HP and 20 HP chassis, focusing on retaining the 'U' bolts. | ||
| View original record | 40/50 & 7CA To FH. from E. Copy to Gd. " " BN. " " DA. " " EFC. ORIGINAL x.682 x.2628 x 3524 RE 40/50 H.P. CHASSIS REAR SPRING PIVOTS. In connection with the design work on the 20 H.P. chassis rear… | ||
| img192 | Typed letter discussing poor running, pre-ignitions, and a knock in car 7 CA. | ||
| View original record | To EH. from R. Copy to CJ. " " BN. " " EFC. " " DA. 7CA OPINIONS RE KNOCKS ORIGINAL X 682. RE CAR 7 CA. X 3413 I am very pleased with your explanation of the poor running of 7 CA, but I have never… | ||
| img193 | Mr. Royce's findings and proposed modifications for the priming device on the 40/50 HP chassis. | ||
| View original record | 7CA ORIGINAL To EH. from E. (EH is struck through) To DA. Copy to CJ. " " BN. " " BY. " " EFC. X.1889 X.682 RE PRIMING DEVICE ON 40/50 H.P. CHASSIS. While chassis 7 CA was at Wittering Mr. Royce found… | ||
| img194 | Ignition system improvements, including material choices for springs and magneto accessibility. | ||
| View original record | ATN 40/50 To EFC. from R. Copy to CJ " " BW. " " BA. " " EH. ORIGINAL R1/G21/8/19. X.3129 X.2877 X.2345 X.2462 X.2565 RE IGNITION ON 1 EX. X3630 With reference to the ignition on 1 EX. this seemed to… | ||
| img195 | Preliminary report on car 1 EX, detailing observations on piston knocking, design, and lubricating oil performance. | ||
| View original record | 1 EX PRELIM REPORT ORIGINAL To WH. from R. Copy to C.L. " " B.H. " " P.V. " " EFC: ✓ THOUGHTS ON PISTON LUB/N Handwritten notes: X.682, X.174, E4 Minor Points 621/8/19 RE CAR 1 EX. X.2565. X.2948 Mr.… | ||
| img196 | Solutions for piston knock through improved engine lubrication methods and oil distribution systems. | ||
| View original record | To EH. from R. RE CAR 1 EX. (2) R3/G21/8/19 Contd. crankchamber has oil of sufficient body, we would like the surfaces of the pistons to become oiled before the engine is put under load. I believe… | ||
| img197 | Engine performance for Car 1 EX, detailing piston compression, slow running characteristics, and lubrication observations. | ||
| View original record | X31 NOCTURNO TEST KNOCK PHOTO R To EH. from R. RE CAR 1 EX. (3) R3/G21/8/19 Contd. in succession. This depended on speed only. I noticed that 1 EX. was particularly tight in compressions, shewing that… | ||
| img198 | Instruction from Mr. Royce to use a semi-flexible scuttle-to-dashboard attachment on all R.R. chassis. | ||
| View original record | To BN. from E. Copy to CJ. " " RY. " " EH. " " DA. " " FEC. 7CA 1EX ORIGINAL X.3440 AS E4/G21/8/19. 2 RE SEMI-FLEXIBLE ATTACHMENT OF SCUTTLE TO DASHBOARD. Would you kindly note that Mr. Royce would… | ||
| img199 | Potential causes and solutions for engine piston knocks. | ||
| View original record | 40/50 PISTON KNOCKS R SAVS To Mr. from R. EXAMINE OIL + IGN Copy to C.L. " " B.N. " " D.A. " " E.F.C. ORIGINAL RE PISTON KNOCKS. K.2948 I believe the lubricant will have an enormous effect on the… | ||
| img200 | Capacity of the petrol tank for the 40/50 HP car, its stated vs actual volume, and potential future designs. | ||
| View original record | 40/50 To BM. from R. Copy to es. " " EFC. " " BA. X.3457. X.3687 ORIGINAL RE 20 GALLON PETROL TANK ON PRESENT 40/50 HP. CAR. I find that the tank on 1 EX. does not appear to hold 18 gallons but 17… | ||
| img201 | The design of 40/50 HP pistons to reduce knocking and improve oil scraping. | ||
| View original record | To EH. from E. Copy to CJ. " " BN. " " EFC. ORIGINAL. E2/G26/8/19. RE 40/50 H.P. PISTONS. X.2478 Referring to your report in which you say that the set of pistons on 49 GB which did not knock, had the… | ||
| img202 | Advantages of pistons with low-set rings. | ||
| View original record | TO EH. from R. Copy to CJ " " BN. " " EFC. ORIGINAL D R7/G27/8/19. 2 X.2748 RE PISTONS. RECEIVED 11 SEP 1919 With reference to the pistons with rings low down, it was intended that the piston above… | ||
| img203 | Clarifying the standard allowances for fitting pistons to prevent knocks, with different specifications for various materials. | ||
| View original record | To from R. Copy to C.U. " " H.V. " " E.P. " " HON. " " EPC. D ORIGINAL SEP 1919 RECEIVED RE PISTONS X. 2748 R6/G27/8/19. (2) I would like it to be thoroughly understood that I have never recommended… | ||
| img204 | Failure of a pendulum steering lever, debating material choice, and outlining questions for investigation. | ||
| View original record | TO RH. from R. Copy to C.J. " EH. " FHS. " " EFC. " " Mr. Hall. R3/G27/8/19. (2 ORIGINAL. RE PENDULUM STEERING LEVER. X.3465 On the test at the Works Mr. Hives will tell us whether this part of the… | ||
| img205 | Re-arrangement and modifications for an improved clutch brake on the 40/50 HP chassis. | ||
| View original record | To EH. from R. Copy to CJ. " " BN. " " DA. X.3574G. [STAMP: ORIGINAL] [STAMP: RECEIVED 1 SEP 1919] R5/G28/8/19. RE IMPROVED CLUTCH BRAKE FOR 40/50 H.P.CHASSIS. I am pleased to hear that you think the… | ||
| img206 | Proposal to test extra cylinder lubrication to address piston knock under light load. | ||
| View original record | To. FH. from R. Copy to EF. " EFC. RE EXTRA LUBRICATION. X.343Y X.2Y48 I propose testing 1 EX. with the extra cylinder lubricating oil always on. I shall be glad if you will make a similar test on… | ||
| img207 | Use of odd tyre sizes on the 40/50 HP chassis and testing the differential. | ||
| View original record | TO BN FROM R. c. to CJ. ORIGINAL. X.3647 X.3044 R7/G1/9/19. 2 RE TYRE SIZES FOR PRESENT 40/50 HP. CHASSIS. With reference to tyres, the views put forward in your memo (BN4/W28819) are exactly as I… | ||
| img208 | Proposing a two-fold satchel with handles as an alternative design for the car's tool kit. | ||
| View original record | R - TOOL ROLL - ALTER Sir Hercules Langlish, recommendation 2 To DA. from R. Copy to FJ. 40/50 ORIGINAL. X.3634 RE TOOL KIT. As an alternative for the tool kit for the car, I think we might arrange to… | ||
| img209 | Progress on the issue of piston knocks, focusing on piston design and lubrication improvements with castor oil. | ||
| View original record | To M. from R. Copy to C.J. DHW DAM EFC. X.2448 RE PISTON KNOCKS. X.1434 ORIGINAL R5/G1/9/19. [STAMP: 5 SEP 1919 REC'D] Thank you for your memo EH4/LG29/8/19 with reference to piston knocks. I am… | ||
| img210 | From Mr. Royce regarding proposed improvements to the design of standard bolt heads. | ||
| View original record | MULTUM IM PARVO. ORIGINAL. E To DA. from E. Copy to C.J. " " BN. " " EH. " " BY. " " WS. " " EFC. X.3645 RE BOLT HEADS. RECEIVED 17 SEP 1919 Referring to the design of our present standard bolt heads,… | ||
| img211 | Simplification of bolt production and a request to produce test bolts for standardisation. | ||
| View original record | To DA. from E. -2- E3/G12/9/19 Contd. gon list. Condition (2) is satisfied by conforming to the hexa- With regard to condition (3) it is thought that on the whole, production will be simplified and… | ||
| img212 | Telegram from Royce regarding unsatisfactory engine performance on car 49GB and suggested remedies before a 10,000-mile test. | ||
| View original record | 49GB V ORIGINAL UNSATY CONFIRMATION OF TELEGRAM. I. 96H. ROYCAR DERBY. X.2631 X.3644/B. RECEIVED (STAMP) HIVES 49GB VERY UNSATISFACTORY AFTER CLEARING MINOR FAULTS ENGINE HARSH PROBABLY DUE TO SET… | ||
| img213 | Diagnosis of a harsh engine feeling in car 49-GB and experiments to fix it. | ||
| View original record | To R. from EH. c. to C. c. to BH. c. to E. c. to Ds. X.2565. 49GB ORIGINAL EH/LG17.9.19. 17th. Sept. 1919. RE 49-GB CAR. With reference to your telegram regarding the above car, we admit that to us… | ||
| img214 | Engine harshness from slipper wheels, compression ratios, and the work status of experimental cars 1.EX and 49-GB. | ||
| View original record | Contd. -2- with only half the usual number of springs on the slipper wheel. The Test Dept: also have stated that tight slipper wheels caused the engine to be harsh - they always see that the slipper… | ||
| img215 | Issues and suggested remedies for chassis 49 GB. | ||
| View original record | To Mr. [redacted] from R. Copy to GJ. " BN. " DA. " EFC. **************** ORIGINAL. 3 R4/G22/9/19. RE CHASSIS 49 GB. X.2681 / X.2448 The following is a report giving my impressions of the above… | ||
| img216 | Fitting of rear shock absorbers and recommendations for cylinder lubrication. | ||
| View original record | To EH. from R. -2- (8) The rear shock absorbers are a certain improvement, and should (if proved to be sound) be fitted at once. I have agreed to fitting them on the trials cars without the 10,000… | ||
| img217 | Issues with the air pump, air pressure system, vibration, and battery leakage on chassis 49 GB. | ||
| View original record | To Mr. from R. (Mr. is crossed out) Copy to CJ. (Crossed out) " " BN. (Crossed out) " " DA. (Crossed out) " " EFC. ORIGINAL (Purple stamp) RE CHASSIS 49 GB - AIR PUMP ETC. x.664x x.2448x… | ||
| img218 | Continued memo from R. to E.H. detailing issues and suggestions for wire insulation, piston leakage, and clutch lubrication. | ||
| View original record | To E.H. from R. -2- R6/G22/9/19 Contd. Care must be taken that some insulation be introduced so that the armouring at the ends of the wires to keep it away from the actual conductors leading into the… | ||
| img219 | Engine harshness, gas leaks, and vibration issues for chassis 49 GB. | ||
| View original record | To EH. from R. Copy to C.I. " " BN " " EFC. ORIGINAL RECEIVED RE CHASSIS 49 GB. X.2681 2 R3/G23/9/19. With reference to the above chassis, the engine feeling harsh to turn by hand and during slow… | ||
| img220 | With a sketch requesting an inquiry into the production of sylphon tubing for a 40/50 HP chassis. | ||
| View original record | To WD. from E. Copy to CJ. " " DN. " " EFC. ORIGINAL 3. S.D / G18/9/19. S.D. RECEIVED 23 SEP 1919 X.3652 RE SYLPHON TUBING. In accordance with Mr. Royce's request would you kindly enquire whether the… | ||
| img221 | Parts to be fitted to a car for a 10,000-mile test and their current status. | ||
| View original record | [Handwritten] 2EX 1st ATW 10,000 MILE TEST (2) [Stamped] ORIGINAL [Handwritten] IN FRANCE OR GB? To R. from EH. c. to CJ. c. to BN. c. to BY. c. to Da. c. to Ep. EH2/LG 18.9.19. 18th. Sept. 1919.… | ||
| img222 | List of parts to be fitted and their current status for experimental car development. | ||
| View original record | Contd. -2- Parts to be fitted. | Position of Expl: Parts. 8. Steering Arms fitted with ball ends which have straight taper and no shoulder. | Completed in 10 days. 9. High Tension wiring with Alum:… | ||
| img223 | The conditions for a 10,000-mile test, comparing France and Great Britain, and necessary vehicle modifications. | ||
| View original record | Contd. -3- EH2/LC1 8.9.19. ------------------ an Instruction Book with the alterations we suggest before we start on the test. We might also try some improved spare wheel carriers. It will be… | ||
| img224 | Need to engage bodybuilders like Barkers for future experimental car bodies. | ||
| View original record | Contd. -4- H12/LG1/8.9.19. ------------- There is no doubt that we ought to have such a body because it is very popular with our customers and it brings up-faults which cannot be appreciated in an… | ||
| img225 | Issues and potential improvements for fabric clutches, with hand-drawn diagrams. | ||
| View original record | To En. From R. Copy to Cl. [Crossed out] BH. [Crossed out] BA. [Crossed out] EPC. [Crossed out] PH. [Crossed out] HH. [Crossed out] ORIGINAL. RE CLUTCHES. [STAMP: RECEIVED 11 SEP 1919] [Handwritten… | ||
| img226 | Postscript to a memo about improving a clutch's performance by injecting it with castor oil. | ||
| View original record | To E.H. from R. -2- R1/G23/9/19. Contd. P.S. Since writing the foregoing, I have injected half a syringe of castor oil into the clutch and lubricated the operating mechanism. This has made an enormous… | ||
| img227 | Design and specifications for a water temperature regulator for the 40/50 HP chassis. | ||
| View original record | To. EX. from E. Copy to SU. BN. DH. EFC. ORIGINAL 2 E1/G23/9/19. RE WATER TEMPERATURE REGULATOR. 40/50 H.P. CHASSIS. X.3563 We send you herewith drawing No. LeC.1142. This drawing is a paper tracing… | ||
| img228 | Direct bypass system, requesting parts from America and confirming an order for thermostat units. | ||
| View original record | To OY. from E. -2- E1/G23/9/19 Contd. Mr. Royce will send later an explanation of why the direct byepass system as shewn has been adopted on our chassis in preference to louvres and other systems of… | ||
| img229 | Mr. Royce's decision on having the long chassis over the 'A' steering. | ||
| View original record | To BN. from E. Copy to C.J. C?. DA. HT. AH. EFC. ORIGINAL. El/G27/9/19. 2 RE "A" STEERING AND LONG CHASSIS. X.3465 X.3706 In reply to your memo BN18/W24/9/19, would you kindly note that Mr. Royce says… | ||
| img230 | Changes to the water temperature regulator pipe arrangement for the 40/50 HP chassis. | ||
| View original record | To DA. from E. Copy to CJ. " " BN. (crossed out) " " EH. (crossed out) " " EFC. ORIGINAL RE WATER TEMPERATURE REGULATOR. X3563 (crossed out) X3695 40/50 H.P. CHASSIS. I send you herewith drawing… | ||
| img231 | Continuation of a memo discussing an engine fitted with a water temperature control. | ||
| View original record | To DA. from E. -2- E3/G27/9/19 Contd. an engine fitted with this water temperature control. E. | ||
| img232 | Problems with fitting Michelin disc wheels and comparing their weight to Dunlop wheels. | ||
| View original record | E.7.C. To R. from EH. c. to OJ. c. to Bn. c. to E. c. to Da. c. to By. ORIGINAL. EH6/LG23.9.19. 3 RE MICHELIN DISC WHEELS. X.3482 X.15 ___________________________ When we come to try and fit these… | ||
| img233 | Comparison of weights between Michelin disc wheels and Dunlop detachable wire wheels for front and rear applications. | ||
| View original record | Contd. -2- EHG/LH23.9.19. WEIGHTS OF MICHELIN DISC WHEELS COMPARED WITH DUNLOP DETACHABLE WIRE WHEELS. Front. Piece. | Michelin. lbs. | Dunlop. lbs. Wheel less tyre | 39.5 | 36.2 Hub. | 11.5 | 11.6… | ||
| img234 | Inaccuracies, weight, and aesthetics of Michelin disc wheels compared to other types. | ||
| View original record | To EH. from R. Copy to CJ. " " BN. " " DA. " " C. " " RN. " " HN. ORIGINAL RECEIVED 1919 R1/G30/9/19. (3) RE MICHELIN DISC WHEELS. X.3482 X.682 I am astounded to hear that the holes in the Michelin… | ||
| img235 | Corrosion issues with wheel covers and recommending continued testing of Michelin disc wheels as a superior alternative to wire wheels. | ||
| View original record | To EH. from R. -2- R1/G30/9/19 Contd. Mr. Haldenby remarked on seeing these covers, that water gets behind them, causing corrosion etc. In conclusion, it would seem that providing we can get Michelin… | ||
| img236 | Comparison of trembler and non-trembler ignition systems based on road tests. | ||
| View original record | To R. from EH. c. to CJ. c. to BN c. to F c. to Da. c. to EP c. to PN. BATT IGN - COMPARISONS - TREMBLER v NON - " ORIGINAL X.1604 / X.3129 EH5/LG26.9.19. 26th. Sept. 1919 COMPARISON BETWEEN TREMBLER… | ||
| img237 | Advantages and performance of a new battery ignition system. | ||
| View original record | To C.D. from R. Copy to EH. " " PN. " " EFC. ORIGINAL RECEIVED 2 OCT 1919 RE NEW TYPE BATTERY IGNITION, ADVANTAGES. X 12631 Regarding the new type battery ignition, I have come to the conclusion that… | ||
| img238 | Electrical wiring insulation, flexible armouring, and the use of tubing for conductors on a car chassis. | ||
| View original record | To EFC. from E. -2- E3/G1/10/19 Contd. The diameter over the insulation of the 70/36's should, if possible, be made a little smaller than the samples you supplied, by reducing the thickness of the… | ||
| img239 | The colour-coding scheme for low tension conductors on the 40/50 HP Chassis. | ||
| View original record | To EFC. from E. Copy to CJ. " " BN. " " OY. " " DA. " " EH. R - GENESIS OF AL. & LT WIRING CONDUITS ORIGINAL on 40/50 E3/G1/10/19. Extract x.2448 x.3659 RE LOW TENSION CONDUCTORS. 40/50 H.P.CHASSIS.… | ||
| img240 | Use of armouring on low tension wires, particularly for those leading to lamps. | ||
| View original record | To: EFC.9 from R. Copy to CJ. to BN. ORIGINAL RE LOW TENSION WIRES. x 2748 With reference to the low tension wiring, we want if possible, to do away with the armouring, but as this appears to be… | ||
| img241 | Failures in the 40/50 radiator suspension during bumping tests and proposing a design modification. | ||
| View original record | ORIGINAL. To R. from EH. c. to CJ. c. to BN. c. to Da. c. to BY. 3 BUMPING TEST FOR 40/50 RADIATOR SUSPENSION. X.3456 X.1331 Recently we have had a number of failures of the Ball and Cantilever on the… | ||
| img242 | Letter about transmission 'chunking' and slow running, exploring causes like premature ignition, electrostatic induction in wiring, and poor fuel quality. | ||
| View original record | R REPLIES TO CJ REF A WAIL FROM C SALAMANCA NA/020/10/19. Copy to Mr. de Salamanca. " BN. " PN. " RP. " EH. " TIN. " LNS. ORIGINAL RECEIVED 22 OCT 1919 My dear CJ,. X.2565. RE CHUNKING IN TRANSMISSION… | ||
| img243 | Continued technical memo listing potential causes for engine misfiring and addressing a customer complaint. | ||
| View original record | To C.J. from R. -2- M4/G20/10/19 Contd. (3) Miss-firing may occur with good fuel, and insufficiently warm engine, carburettor, or pipes giving bad distribution, hence some charges are weak and others… | ||
| img244 | Issues with trembler ignition at high speeds and the testing of a potential replacement. | ||
| View original record | To CJ. from R. -3- R4/G20/10/19 Contd. Trembler ignition is not now being fitted to any first rate cars or engines; it was never good for the higher speeds. This is the only feature of doubt in our… | ||
| img245 | The urgent need for a model switchbox for the 40/50 HP electrical system. | ||
| View original record | To DA. from E. Copy to Sd. EN EFC. X.3618 UW ORIGINAL. S.D. RECEIVED 23 OCT 1919 RE SWITCH BOX - 40/50 H.P. ELECTRICAL SYSTEM. You will no doubt recollect that on the 13th August we sent to you… | ||
| img246 | Notes on matters discussed during a visit of Messrs. Barrington and Hives to West Wittering on the 23rd of the month. | ||
| View original record | To EH. from E. Copy to GJ. " " DA. " " OV. " " RH. " " EFC. ORIGINAL NOTES ON MATTERS DISCUSSED DURING VISIT OF MESSRS. BARRINGTON AND HIVES TO WEST WITTERING ON 23rd INST. STARTING AND LIGHTING… | ||
| img247 | From E. to EH. detailing Mr. Royce's decisions on various automotive components. | ||
| View original record | To EH. from E. -2- E1/C24/10/19 Contd. SPARE WHEELS AND LUGGAGE. X.3633 Mr. Royce wishes to fit the spare wheels on to the back of the car (not carry luggage there) and design a suitable fitting to… | ||
| img248 | Experiments for battery ignition and notes on torque reaction vibration. | ||
| View original record | TO BN. from R. -3- E1/G24/10/19 Contd. EXPERIMENTS WITH BATTERY IGNITION. X-3129 Mr. Royce wishes the following experiments to be made with the battery ignition:- Find the spark length at the end of… | ||
| img249 | Drawings and alterations for a starter motor on an American 40/50 HP chassis. | ||
| View original record | TO DA. from E. Copy to Gd. " BN. " GY. " WH. " EFC. X.3740. RS STARTER FOR AMERICAN 40/50 H.P. CHASSIS. X.3683 X.3558 We send you herewith drawings Nos. LeC.1155 and 1159 shewing the starter gear and… | ||
| img250 | Telegram from Royce to Barrington Hives regarding an investigation into connecting rod vibrations. | ||
| View original record | CONFIRMATION OF TELEGRAM. (3) 29th October, 1919. ORIGINAL. 96A/ X.3400 X.3429 ROYCAR DERBY. RECEIVED D 30 OCT 1919 BARRINGTON HIVES SUSPECT SHORT CONNECTING RODS INCREASE AMPLITUDE OF REACTION… | ||
| img251 | Re-arranging ignition wiring on chassis 1 EX to improve slow running and comparing the R.R. coil to the Remy coil. | ||
| View original record | TO EN. from R. EH. copy to CS. DA EFC. ORIGINAL D 5 R8/G31/10/19. RECEIVED 31 OCT 1919 x.3/29 x.3/13 x.3/14 x.2744 RE CHASSIS 1 EX. We have re-arranged the wiring on 1 EX. moving the coil closer to… | ||
| img252 | Diagrams showing various methods for routing and securing LT and HT wiring. | ||
| View original record | BALLAST ONLY WIRING, LT WIRE, LT WIRE PASSING THRU' TROUGH, SECTION THRU' WOOD TROUGH HELD ON WITH SCREWS., SHEET METAL, HARD WOOD BLOCKS, SHEET METAL, HT WIRES, ORIGINAL BRACKET (TENNIS RACQUET), (OC… | ||
| img253 | Cover letter for miscellaneous notes made during a visit on the 23rd October involving Mr. Hives and Mr. Royce. | ||
| View original record | To RN. from E. copy to CJ. " " DA. " " OY. " " EFC. " " EH. E1/G24/11/19. RE-MISCELLANEOUS NOTES. I send you herewith a copy of notes that I made during the visit of Mr. Hives and yourself on the 23rd… | ||
| img254 | Requested modifications for a steering box axle for further testing. | ||
| View original record | S 40/50 ORIGINAL os/oh E3/G5/12/19. 2 To D.R. from E. Copy to GJ. " " DN. " " HS. " " CK. X3405 RE STEERING BOX AXLE. Referring to the specimen of the above broken on the bump test, would you kindly… | ||