Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Drawing for a 20 HP crankcase and a delay in work due to the American chassis. | ||
| View original record | AM/N - COM'D TAKES PRIORITY OVER G1 MA ORIGINAL. 7 OCT '19 (2) To DH. from E. Copy to CJ. " " BH. " " EH. " " WSC. E1/04/10/19. RECEIVED RE 20 H.P. CRANKCASE. X.3536. You will recollect that we… | ||
| Scan1 | Crankcase design changes and a work stoppage on the 30 HP engine. | ||
| View original record | AM/AP CHASSIS & TAKES PRIORITY OVER GT MA ORIGINAL Ref: T3P RECEIVED 15 OCT 1918 RE 30 H.P. CRANKCASE. X.3235. RCVD/LOM/CJB 13.10.18 You will recollect that we understand that the facing for the main… | ||
| Scan2 | The armouring of low tension conductors for the 40/50 HP chassis. | ||
| View original record | To EFC. from E. Copy to CJ. " " BN. " " OY. " " DA. " " EH. ORIGINAL. RE LOW TENSION CONDUCTORS. 40/50 H.P.CHASSIS. E1/G2/10/19. x2448 In continuation of our memo of yesterday's date referring to the… | ||
| Scan3 | Material composition and pressure for starter motor brushes. | ||
| View original record | WN To EFC. from R. Copy to CJ. " " " BN. " " " OY. X.2656 (Struck through) X 3082 [Stamp: RECEIVED 9 OCT 1919] [Stamp: ORIGINAL] R2/G6/10/19. (4 RE BRUSHES FOR STARTER MOTOR. It will be remembered… | ||
| Scan4 | Performance of petrol filters and future design, noting potential issues with benzol and water contamination. | ||
| View original record | WN [text crossed out] From R. Copy to: EH. RECEIVED ORIGINAL. 3 R4/G6/10/19. X.3401. [Crossed out text: X 3451] RE PETROL FILTERS. With reference to our petrol filters, these have done very well up to… | ||
| Scan5 | With sketches detailing Mr. Royce's design approval for a 40/50 HP magneto strap. | ||
| View original record | TO BA. from E. Copy to CJ. " " EFC. ORIGINAL X.3630 RE 40/50 H.P. MAGNETO STRAP. With reference to your scheme N.123, would you kindly note that Mr. Royce approves of the magneto being canted to an… | ||
| Scan6 | Experiments to reduce piston knock using an oil-fed cylinder, as suggested by Mr. Royce. | ||
| View original record | To R. from KH. c. to CG. c. to DN. c. to E. c. to Da. c. to EP. c. to BY. ORIGINAL. EH2/LG9.10.19. 9th. Oct. 1919. x.2448 x.3651 RE PISTON KNOCKS. We have been experimenting with some standard pistons… | ||
| Scan7 | Experiments to resolve piston knocking using an oil plunger scheme. | ||
| View original record | Contd. -2- EH2/LGS.10.19. ************ The strongest springs would not prevent the piston knocking if we applied a load such as one would get when picking up from slow speed on a car. We feel that… | ||
| Scan8 | Alterations to the high-tension distributor rotor to economise on platinum. | ||
| View original record | To EFC. from E. Copy to CJ. " " BN. " " EH. " " DA. ORIGINAL. RE HIGH TENSION DISTRIBUTOR ROTOR. X 800 X.1818 [handwritten and struck through] Referring to the proposed alteration to economise the… | ||
| Scan9 | Requesting an inquiry into the hard metal used by Americans for ignition contacts. | ||
| View original record | To GY. from E. Copy to CJ. (struck through) " " BM. (struck through) " " EFC. X 1818 ORIGINAL. E2/G15/10/19. 16 OCT 1919 RE METAL FOR HIGH TENSION CONTACTS. Would you kindly note that Mr. Royce would… | ||
| Scan10 | Directive from Mr. Royce to change the material of the condenser spring from steel to bronze due to rust. | ||
| View original record | To EFC. from E. Copy to CJ. " " BN. " " EH. " " DB. [Text Struck Through] ORIGINAL. E4/G16/10/19. 2 X.2612 RE CONDENSER. X.2631 It is noticed that the condenser spring on 49 GB is made in steel, and… | ||
| Scan11 | Proposed piston design with an oil ram to prevent knocking in the 40/50 HP chassis. | ||
| View original record | To B.N. from E. Copy to C.J. " " W.H. " " D.A. " " E.F.C. ORIGINAL E. PONTIFICATES 2 BN E1/G16/10/19. RE 40/50 H.P; CHASSIS PISTON. Referring to the proposed type of piston in which a small oil ram at… | ||
| Scan12 | Suggestions from Mr. Royce and Mr. Hives on using a back pressure valve and a larger ram to prevent knocks and piston ring wear. | ||
| View original record | To BN. from E. -2- E1/G16/10/19 Contd. Mr. Royce has suggested the use of a back pressure valve on the oil supply to the ram, but thinks that it is probably not practical, though it might work with a… | ||
| Scan13 | Theoretical and practical development of silent pistons. | ||
| View original record | To BN. from R. Copy to Gd. EH. X3746 ORIGINAL RE SILENT PISTONS. R2/G17/10/19. You will remember that during your visit here, it was definitely concluded that if we could get the piston to stay… | ||
| Scan14 | Design, functionality, and patenting of split pistons. | ||
| View original record | To BN. from R. -2- R2/G17/10/19 Contd. to a final trial of the simplest form that will function correctly. When you were last here, I regret that owing to Mr. Nadin's anxiety to get to London we could… | ||
| Scan15 | Notice advising users on radiator management for economical engine operation during autumn. | ||
| View original record | EH To B.J. from R. Copy to C.J. ORIGINAL. R5/G20/10/19. 4 RECEIVED 29. OCT 1919 Dear B.J., X3653 X3456 RE RADIATORS. It is a very opportune time of the year to warn users of R.R. cars that as the… | ||
| Scan16 | Telegram discussing an engine misfire, cured by changing spark plugs, with further suggestions for wiring. | ||
| View original record | POST OFFICE TELEGRAPHS CONFIRMATION Office of Origin and Service Instructions: West wittering TO: Roycar Derby clark 1 ex flight missing on picking up cured by changing plugs stop consider plugs are… | ||
| Scan17 | Telegram from Royce regarding the results of bunching wires together. | ||
| View original record | TO (Roycar) neat job all wires together as no ill effects are traceable to bunching wires send report on saturday Hives homeward Bond Royce | ||
| Scan18 | Reverse side of a document with handwritten pencil annotations and a faint stamp. | ||
| View original record | [Circular Stamp, top left] Illegible [Pencil, bottom left, crossed out] Dixon [Pencil, bottom right] Air for RR Fly | ||
| Scan19 | Telegram received by telephone concerning engine misfires and a potential solution involving changing ignition plugs. | ||
| View original record | ROLLS-ROYCE, Limited. X.3129 ORIGINAL TELEGRAM RECEIVED BY TELEPHONE. Time Received 12.45 Date 27.10.19 To Roycar Derby By gH from West Wittering 113 FROM { black can misfires be cured if all things… | ||
| Scan20 | Telegram message received by telephone with instructions for ignition system components. | ||
| View original record | R.H.R. 444. (10-21). (50,000). E.F.H./S. ROLLS-ROYCE, Limited. TELEGRAM RECEIVED BY TELEPHONE. Time Received........... Date........... To........... By........... from 2 known good bosch or lodge… | ||
| Scan21 | Telegram received by telephone detailing modifications to an electrical system. | ||
| View original record | G.W.P. 1369. (50 Bks.) 25.1.12/C.L. ROLLS-ROYCE, Limited. TELEGRAM RECEIVED BY TELEPHONE. Time Received Date To By from 3 fourthly increasing insulation between layers of secondary winding stop effect… | ||
| Scan22 | Telegram message regarding a fault being cured by changing plugs. | ||
| View original record | R.R. 144A (48 D.) (SC. 5/3. 25.2.16) E.P. 12/6. ROLLS-ROYCE, Limited. TELEGRAM RECEIVED BY TELEPHONE. Time Received Date To By from did not have desired result here but changing plug both definitely… | ||
| Scan23 | Requesting alterations to blueprint LeC.1104 for a 20 HP bonnet and radiator. | ||
| View original record | COPY ORIGINAL To Da. from E. c. to CJ. c. to Bn. c. to SP. X.3561. E1/G28.10.19. RE 20 H.P. BONNET & RADIATOR. We send you herewith one blueprint of LeC.1104 altered to shew the windscreen nearer to… | ||
| Scan24 | Telegram discussing issues with battery ignition, spark power, and discharge at the plug points. | ||
| View original record | Royce Derby Clerk re Battery Ignition anything which enfeebles the discharge at the plug points probably reduces the power of spark to fire a weak or irregular charge and at once do all possible to… | ||
| Scan25 | Telegram from Royce detailing a temporary fix for an engine distribution issue by repositioning the coil. | ||
| View original record | Westwethering 2nd Roycar by removing metal tube using wood or cardboard temporarily and locating coil close to distributor stop use well insulator coils and plugs also keep engine warm to get good… | ||
| Scan26 | Reverse side of a folded document with handwritten pencil annotations and a faint stamp. | ||
| View original record | 26 per for this 9/116 | ||
| Scan27 | Design of a 40/50 HP aluminium piston with a 2' diameter anti-knocking ram. | ||
| View original record | To DR. from E. Copy to CJ. " " EPC. ORIGINAL. E5/G30/10/19. 2 RE 40/50 H.P. PISTON. X.3715 We send you herewith drawing No. LeC.1152 shewing an aluminium piston fitted with a 2" diameter anti-knocking… | ||
| Scan28 | Instructions for standardizing the ram pattern of a piston with an eccentric core. | ||
| View original record | To DA. from E. -2- E5/G30/10/19 Contd. The piston is balanced by reason of its walls being made of unequal thickness, or to put it in another way, the core of the piston is eccentric. The amount of… | ||
| Scan29 | The road trials of battery ignition systems, investigating the causes of misfiring. | ||
| View original record | To R. from EFC. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EH. c. to By. c. to EP. ORIGINAL. EFC10/T24.10.19. ROAD TRIALS OF BATTERY IGNITION We have made a number of trials under different… | ||
| Scan30 | The principles and components of a high-tension ignition circuit. | ||
| View original record | Contd. -2- tube, which combination is a condenser; secondly, the high tension rotor which also acts as a condenser of appreciable capacity; thirdly, the spark gaps on the high tension distributor… | ||
| Scan31 | Ignition coil polarity and distributor adjustments for improved engine firing. | ||
| View original record | Contd. -3- EFC10/T24.10.19. regularly. This can be done as follows:- (1) The direction of current through the primary coil must be such as to produce a high tension discharge of a certain polarity at… | ||
| Scan32 | Experiments to improve ignition timing by altering spark gaps and advancing the distributor rotor. | ||
| View original record | Contd. -4- EFC10/T24.10.19. Other things being the same, opening up the spark gaps to, say, .020" or .025" introduces a tendency to miss fire. There would also be a tendency to miss fire if the rotor… | ||
| Scan33 | Ignition system misfires, discussing distributor wiring, coil placement, and spark plug types. | ||
| View original record | Contd. -5- EFC10/T24.10.19. of the distributor direct instead of having to pass through the earthed metal tube through which the six distributing wires pass. Undoubtedly this causes a reduction in the… | ||
| Scan34 | High tension circuit misfiring, attributing the issue to coil insulation stress and proposing tests with new experimental coils. | ||
| View original record | Contd. -6- EFC10/T24.10.19. the conditions of the high tension circuit fairly easy to overcome, there is no difficulty in bringing about regular firing, and the fact that such missing as does occur,… | ||
| Scan35 | Road testing a Remy 6-cylinder coil and investigating mis-firing issues compared to the standard coil. | ||
| View original record | Contd. -7- EFC10/T24.10.19. opportunity of trying these on the road and possibly proving that the ideas on this matter put forward as above, are approximately correct. We tried on the road a Remy 6… | ||
| Scan36 | Coil failures during testing and suggesting improvements to insulation. | ||
| View original record | Contd. -8- EFClo/T24.10.19. in spite of the fact that the gaps of the distributor were at least .020" and working on the leading corner. We have had to return from producting testing about 10% of all… | ||
| Scan37 | Telegram from Royce to Claude Johnson regarding chassis and engine modifications, confirming fears about torque variation were unfounded. | ||
| View original record | R.R. 235a (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. ORIGINAL. Copy to Ker. [struck through] Ark. [struck through] H.R. [struck through] W.H. [struck through] By. [struck through] Ck. from Hm.… | ||
| Scan38 | From Royce to Barrington Wormald regarding battery ignition experiments. | ||
| View original record | COPY. 20.11.19. from Bn. To Hs, Ck, Da. 2 ORIGINAL x3129 x3714 18.11.19. To:- BARRINGTON WORMALD. RE BATTERY IGNITION EXPERIMENTS BY CLARK SHEW EARTHED IRON TUBE SHOULD BE REMOVED stop PREFER WHOLE… | ||