Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Proposed modifications to the distribution box and its cut-out. | ||
| View original record | X.3585 - MODIFIED R.R. DISTRIBUTION BOX. X.3770 (1) There is the possibility of reversing the connections to the fixed and movable contact of the cut-out in such a manner that when the dynamo is not… | ||
| Scan1 | The completion of steering column parts and the plan to fit them to a car. | ||
| View original record | To R. from Hs. (Hs. is struck through) C. to C. C. to Dn. (Dn. is struck through) R.F.C. ORIGINAL. Hs4/LGC. 8.20. 2 X.3791a RE STEERING. The parts for the completion of the steering column are now… | ||
| Scan2 | The unsatisfactory results of testing tungsten contact points, concluding that only platinum is suitable for their ignition system. | ||
| View original record | ORIGINAL To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to Da. c. to Oy. c. to By. X.2894 - TUNGSTEN CONTACT POINTS. Further to our last report EFC2/T25.6.20 re the above tungsten contact points… | ||
| Scan3 | Electrical appendix to a handbook, with points on battery maintenance and useful tools. | ||
| View original record | To EFC. from R. Copy to CJ. " " Mr. Walker. ORIGINAL. +.995. RE ELECTRICAL APPENDIX TO HANDBOOK. Very few people realise the value of the following points:- "Whenever convenient, wash the battery down… | ||
| Scan4 | Specifications for an Aero Type Dynamo with a vibrator regulator. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to PN. c. to Wor. c. to Bn. c. to EP. c. to Da. c. to By. c. to EWT/for U.S.A. ORIGINAL. EFC4/T17.8.20. X.4064 - AERO TYPE DYNAMO WITH VIBRATOR REGULATOR. X.1402… | ||
| Scan5 | Continued description of a voltage control regulator, detailing its components, materials, and electrical operation. | ||
| View original record | Contd. -2- EFC4/T17.8.20. The front end plate and the commutator end cage in which the regulator and brush system are housed are both of aluminium; the field carcase is of mild steel of 5.93" dia.… | ||
| Scan6 | The characteristics of carbon contacts and open circuit results in a dynamo and regulator system. | ||
| View original record | EFC4/T17.8.20. -3- Contd. current to the field winding at all. The carbon contacts introduce a slight amount of resistance, even when no current is passing through the operating coils, and this… | ||
| Scan7 | Continued report discussing field currents and vibrator control systems, comparing carbon contacts to metal contacts in dynamos. | ||
| View original record | Contd. -4- EFC4/T17.8.20. hot condition than for the cold as would be expected, owing to the higher voltage required to push the same current through the solenoid. Curves of field currents for the… | ||
| Scan8 | Circuit diagram detailing the connections of an Aero Dynamo and a vibrator regulator. | ||
| View original record | Carbon vibrator contacts Coil. 8gu Load Field Coil Res. 14LW X. 4064 Connections of Aero Dynamo and vibrator Regulator | ||
| Scan10 | The testing and evaluation of a Multiple Storage Type C.A.618 battery, detailing its condition, design flaws, and performance results. | ||
| View original record | To Bn. from EFC. c. to R. c. to CS. c. to EWT. for U.S.A. ORIGINAL. X.3711 - MULTIPLE STORAGE TYPE C.A.618 BATTERY. This battery was received on 31st. Dec. last as two separate 6 volt sets, each rated… | ||
| Scan11 | Battery charging and discharging performance tests. | ||
| View original record | Contd. -2- EFC1/T20.8.20. and densities adjusted, and again discharged at the same rate to the same terminal voltage when it gave 110 ampere-hours. Thirdly, it was suitably recharged with about 200… | ||
| Scan12 | Test report on a 12-volt battery's discharge performance, construction, and comparison to standard models. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP 180865 Contd. -3- EFCl/T20.8.20. discharge, the time to attain this point was 14.9 hours, showing a capacity at this approximate rate of discharge, say 10.2, of 152… | ||
| Scan13 | Continued memo regarding battery testing, inspection, and forwarding results to Messrs. Hobson. | ||
| View original record | Contd. -4- EFC1/T20.8.20. be tested in this manner in due course, after which it will be again tested for capacity, and then an inspection of the cells will probably be made. The completion,… | ||
| Scan15 | Protection of the dynamo-battery system using fuses, comparing different fuse positions. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to Da. c. to PN. ORIGINAL EFC3/T25.8.20. X.2515 - PROTECTION OF DYNAMO-BATTERY SYSTEM X.294 X.295 BY FUSES. (1) The sole object of a main fuse in the… | ||
| Scan16 | Disadvantages of a circuit diagram regarding fuses and seeking advice on a better arrangement. | ||
| View original record | Contd. -2- EFC3/T25.8.20. taking a much larger fusing current, then Fig.1 is dangerous if the main fuse is at the same time incorrectly replaced. This would occur as previously explained if the two… | ||
| Scan17 | Two wiring diagrams for a vehicle's dynamo charging system, labelled Fig. 1 and Fig. 2. | ||
| View original record | Switch Main Fuse Field Fuse Cut-out Dynamo FIG. 1 Main Fuse Switch Field Fuse Cut-out FIG 2. E7C 25.8.20. R. R. 285A (100 T) (S. G. 643, 19-2-20) G. 2618 | ||
| Scan18 | Risk of overheating in Lucas and Smith dynamos and the fuse systems used to prevent it. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to Da. ORIGINAL. EFC1/T25.8.20. (9) X. 2515 X. 3074 X. 295 FUSE SYSTEMS WITH LUCAS & SMITH DYNAMOS. X. 3749 In answer to your telegram, there is no… | ||
| Scan19 | The potential for interchanging main and field fuses, proposing non-interchangeable holders and further testing. | ||
| View original record | Contd. X.3533 (crossed out) X.3923 b -2- EFC1/T25.8.20. There is the possibility on the distribution board on 6 EX that the main fuse and field fuse might be interchanged in error, in which case the… | ||
| Scan20 | Correspondence regarding faulty dynamo suspension clips and the despatch of a replacement sample. | ||
| View original record | To R. from Hs. c. to C.J. c. to BN. c. to E. c. to Da. c. to BY. ORIGINAL. R. F. C. Hs2/LG27.8.20. X.2496 X.3899 CLIPS FOR DYNAMO SUSPENSION. In reply to your telegram, we have despatched to you today… | ||
| Scan21 | Unsuitability of the Scintilla Magneto Type AM6 and recommending its return to the manufacturer. | ||
| View original record | To BY. From Hs. ORIGINAL RECEIVED Hs5/LG31.8.20. X430 RE. SCINTILLA MAGNETO. TYPE AM6. During our last visit to Mr. Royce we showed to him the Swiss made Magneto. He agreed that they were excellent as… | ||
| Scan22 | Pros and cons of earthed versus non-earthed electrical wiring schemes for a car. | ||
| View original record | To EFC. from R. Copy to CJ. " WOR. " HS. " BY. " DA. Y.4165 ORIGINAL. RE ELECTRICAL EQUIPMENT FOR R.R. CAR. (EFC4/T26/7/20) R2/G3/8/20. 6 6 AUG 1920 RECEIVED X.3659 X.3555 I telegraphed you on the… | ||
| Scan23 | Desirability of a disconnectable earth connection for testing purposes. | ||
| View original record | To EFC. from R. -2- R2/G3/8/20 Contd. a fuse. One earth connection which can be disconnected for testing would be most desirable for so many reasons, such as testing, etc. R. [Signature] [Text at… | ||
| Scan24 | Buckled positive plates on a 'Buick' accumulator. | ||
| View original record | To EFC. from E. Copy to CJ. HS. ORIGINAL. E1/G4/8/20. x.3317 x.607 RE "BUICK" ACCUMULATOR. Referring to my memo E2/G22/7/20, please note that so far as Mr. Royce remembers the two outer positive… | ||
| Scan25 | The failure of Exide accumulators, discussing plate buckling and suggesting improvements for sealing. | ||
| View original record | To EFC. from R. Copy to CJ. X.3317 X.607 ORIGINAL RE ACCUMULATORS (EXIDE) RECEIVED 6 AUG 1920 With reference to the separators between the plates, we trust you have been able to get the necessary… | ||
| Scan26 | Directive from Mr. Royce on modifying the wooden models for 40/50 HP steel engine feet brackets. | ||
| View original record | To DA. from E. Copy to Cd. BN. BY. MS. * * EPC. X.4062 RE 40/50 H.P. ENGINE FEET. ORIGINAL E6/04/a/20. 3 RECEIVED 6 AUG 1920 With reference to the wooden models of the steel engine feet brackets which… | ||
| Scan27 | 'Buzzard' starting motor gear and bracket, enclosing drawing Lec.1268. | ||
| View original record | To DA. from E. Copy to Ce. BH. DH. HC. EFC. RECEIVED ORIGINAL. E2/G5/8/20. 4 X.382Y RE "BUZZARD" STARTING MOTOR GEAR AND BRACKET. We send you herewith drawing Lec.1268 shewing the above. This… | ||
| Scan28 | Scheme for a petrol level gauge and reserve supply device. | ||
| View original record | To DA. from R. Copy to EH. " " RY. " " HS. " " EFC. ORIGINAL. D 6 AUG 1920 RECEIVED 50 R1/G5/8/20. X.3888 RE PETROL LEVEL INDICATOR AND RESERVE SUPPLY DEVICE. Referring to the above, a scheme Lec.1267… | ||
| Scan29 | Sending drawing No. LeC.1265 for the 'Vulture' connecting rod and requesting an advance model for Mr. Royce's criticism. | ||
| View original record | To DA. from E. Copy to GJ. EFC. X.3839 ORIGINAL E7/G6/8/20. 3 RE "VULTURE" CONNECTING ROD. We send you herewith drawing No. LeC.1265 shewing the "Vulture" Connecting Rod. Would you kindly put the… | ||
| Scan30 | Sending drawings for the 'Buzzard' crankcase. | ||
| View original record | TO D.A. from E. Copy to C.J. [Struck through: MH] [Struck through: BY] [Struck through: HS] * EFC.X.3787. RE "BUZZARD" CRANKCASE. [Stamp: ORIGINAL] [Top Right] E1/G7/8/20. [Top Right Corner] 3 We send… | ||
| Scan31 | Sending drawing No. Lec.1228, showing a view of a cylinder facing on the 'Buzzard' Crankcase. | ||
| View original record | To. DA. from E. Copy to GJ. " " BN. " " BY. " " HS. " " EFC. ORIGINAL 3 E1/G9/8/20. X.3787. RE "BUZZARD" CRANKCASE. We send you herewith drawing No.Lec.1228, giving a view of a cylinder facing on the… | ||
| Scan32 | Drawing No. LeC.1271 for the 'Buzzard' engine's Crankcase Rear Supporting Member. | ||
| View original record | To DA from E. Copy to S.J. [Struck through] " " BH. [Struck through] " " BY. [Struck through] " " HS. [Struck through] " " EFC. X.3787. RE "BUZZARD" ENGINE. ORIGINAL. E1/G10/8/20. (3) We send you… | ||
| Scan33 | And comparing designs for a petrol gauge, including a 'bull eye' and a bevel-geared magnetic type. | ||
| View original record | ORIGINAL. To Da. from R. c. CJ. c. E. c. BY. c. Hs. S.E.C. X.3852. RE PETROL GAUGE. Re Bn's idea of "bull eye", this should be tested to see if there is any hope of it being sufficiently visible. This… | ||
| Scan34 | Protecting glass from breakage and comparing the hardness of English and French plate-glass. | ||
| View original record | Contd. -2- R23/H10.8.20 be tested. It would be nice if we could protect the glass from risk of breakage, I think, but we can leave that until we find if it is necessary. E. suggests hard glass.… | ||
| Scan35 | Requesting the source and specification of Castor Oil lubricant. | ||
| View original record | To HS. from E. ORIGINAL. RE CASTOR OIL LUBRICANT. Could you kindly say, in accordance with Mr. Royce's request, from where you obtain supplies of the Castor Oil lubricant, two gallons of which you… | ||
| Scan36 | Return of a Smith dynamo after inspection by Mr. Royce. | ||
| View original record | To EFC. from Rs. Copy to D. ORIGINAL Rs2/G10/8/20. x.295 RE SMITH DYNAMO. Would you kindly note that we have to-day returned to you per passenger train, the Smith dynamo which you sent to West… | ||
| Scan37 | Instruction to omit the taper pin lock for the main oil pipe tubular nut on the 'Buzzard' engine. | ||
| View original record | To DA. from E. Copy to GJ. [text struck through] BN. [text struck through] EH. [text struck through] BY. [text struck through] " " EFC. X 3784 RE "BUZZARD" ENGINE. ORIGINAL. EA/G12/8/20. 3 Referring… | ||
| Scan38 | Requesting a model of a distribution board be sent to West Wittering for Mr. Royce's inspection. | ||
| View original record | To HS. from E. ORIGINAL. 5 E4/G13/8/20. RECEIVED X.3558. X.3760 RE R.R. DISTRIBUTION BOARD. It would be a very great help in settling up the R.R. distribution board if you could send to West Wittering… | ||
| Scan39 | Drawings and modifications for the 'Buzzard' engine's wheelcase and gears. | ||
| View original record | To DA: from E. Copy to CJ. " " BN. " " BY. " " HS. " " EFC. X.3814 RE "BUZZARD" WHEELCASE AND GEARS. ORIGINAL. E3/G13/8/20. 6 We send you herewith four drawings dealing with the "Buzzard" Wheelcase… | ||
| Scan40 | Outlining the design of the offside 'Buzzard' cylinder head in relation to the near side version. | ||
| View original record | 3 ORIGINAL To DA. from E. Copy to CJ. " " BN. " " BY. " " HS. " " EPC. E2/G17/8/30. X.3801. RE "BUZZARD" CYLINDER HEAD. We send you herewith drawing Lec.1276 showing the near side "Buzzard" cylinder… | ||
| Scan41 | Describing an alternative operating device for the reserve fuel valve suggested by Mr. Royce. | ||
| View original record | To DA. from E. Copy to CJ. " " EFC. " " HS. X.3888a. ORIGINAL. RE OPERATING DEVICE. We send you herewith sketch of alternative device suggested by Mr. Royce for operating the reserve fuel valve in… | ||
| Scan42 | Sketch of an operating device for a reserve fuel valve, employing a sylphon tube and a protective cover. | ||
| View original record | E/G19/8/20 X.3888a PROTECTIVE COVER WHICH MUST BE REMOVED (IN A SIMILAR WAY TO A TYRE VALVE COVER) TO OPERATE THE VALVE. THIS COVER PREVENTS THE ACCIDENTAL DEPRESSION OF THE OPERATING HANDLE BY… | ||
| Scan43 | Possibility that blown fuses caused a Smith dynamo to overheat on 6 EX. | ||
| View original record | To EFC. from R. Copy to CJ. " " HS. ORIGINAL. R18/G23/8/20. 24 AUG 1920 RECEIVED X.295 RE SMITH DYNAMO. X.3926 X.3923b It has occurred to me that there is just the possibility that the blowing of the… | ||
| Scan44 | Wiring, starter motor, and brush issues on chassis 6 EX. | ||
| View original record | To EFC. from R. Copy to CJ. " " HS. " " DA. " " BY. " " EP. " " R.R. of America Inc. (For the attention of OY.) [STAMP] ORIGINAL [Handwritten crossed out] X.3923 [Handwritten crossed out] X.3659 [Red… | ||
| Scan45 | Difficulty in accessing fittings near the clutch due to a narrow opening and a long scuttle. | ||
| View original record | To EFC. from R. -2- R4/G24/8/20 Contd. to get to any of the fittings in the neighbourhood of the clutch, owing to the narrow opening, and the long scuttle. R. | ||
| Scan47 | Telegram inquiring about the failure mode of Smith versus Lucas electrical machines when a circuit fault occurs. | ||
| View original record | Roycear Derby Clark should a fuse blow or any disconnection occur on any of the circuits does the Smith machine roast and Lucas not roast Royce | ||
| Scan48 | Telegram received by telephone reporting a damaged dynamo due to a blown fuse in the armature circuit. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 ORIGINAL! ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received: 11.10 Date: 25.8.20 To: Roycar Derby By: GH X.295 X.2575 Y.4165 from:… | ||
| Scan49 | Telegram message regarding fuses in a field circuit. | ||
| View original record | R.R. 144A (100B.) SE 867. 9.7.18 MP 193871 ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received Date To By from Tg fuses in cutout the field only circuit one on being Smith FROM Royce… | ||
| Scan50 | Telegram confirmation regarding a dynamo suspension tube cap, instructing to scrap the current stock and modify the forging. | ||
| View original record | ORIGINAL. CONFIRMATION OF TELEGRAM TELEPHONED TO CHICHESTER. D 30 AUG 1920 RECEIVED 27th August, 1920. 4 x.2496 x.3899 ROYCAR DERBY. HIVES DYNAMO SUSPENSION TUBE CAP OF CLAMP AT FORWARD END WILL NOT… | ||
| Scan51 | Suitable insulation materials for fuse contacts and dashboards, comparing elasticity and heat resistance. | ||
| View original record | To EFC. from R. Copy to CJ. " " DA. " " HS. " " WOR. " " WD. " " Mr. Coverley ORIGINAL. RE R.R. DISTRIBUTING BOARD. X.4123. X.2515 Y 1109 RECEIVED Many thanks for suggestion of contact maker for… | ||
| Scan52 | Outlining Mr. Royce's requested modifications for a side petrol filler on the 40/50 HP chassis. | ||
| View original record | To D.A. from E. Copy to CJ. " " BN. [struck through] " " HS. [struck through] " " EFC. " " BY. [struck through] X.3889 [Handwritten] [STAMPED: ORIGINAL] RE N. SCHEME 538 - SIDE PETROL FILLER 40/50… | ||
| Scan53 | Typed memo from E. to D.A. regarding modifications and feedback from Mr. Royce. | ||
| View original record | To DA. from E. -2- E3/G27/8/20 Contd. Would you kindly instruct these modifications without further reference to Mr. Royce, and proceed to test, with a view to standardisation. E. Mr. Royce considers… | ||
| Scan54 | Design of a distributing board and the potential for a dynamo to burn out under open circuit conditions. | ||
| View original record | To EFC. from R. Copy to CJ. " " HS. " " DA. " " EP. X.4173 X.2575 ORIGINAL RE DISTRIBUTING BOARD. R8/G27/8/20. 6 X.3936 X.295 30 AUG 1920 RECEIVED When a fuse blows and nothing is found wrong with the… | ||
| Scan55 | Cutouts, oxidised contacts, and the material for fuses. | ||
| View original record | To EFC. from R. -2- R8/G27/8/20 Contd. What happens supposing cutout does not make circuit through oxidised contacts ? I have preferred copper for fuses for many years, soft materials fail at the… | ||
| Scan56 | The design and installation of a distributing board and associated wiring for a chassis. | ||
| View original record | To DA. from E. Copy to CD. HS. BY. " " EFC. ORIGINAL 4RECEIVED E3/G28/8/20. X.4173 RE DISTRIBUTING BOARD. H.P. CHASSIS. We send you herewith drawing No. Lec.1277 shewing the distributing board… | ||
| Scan57 | Design modifications for a petrol level indicator and spare fuel device. | ||
| View original record | To D.R. from E. Copy to C.J. " " BN. " " HS. " " EFC. " " DY. X.3888 ORIGINAL RE PETROL LEVEL INDICATOR AND SPARE FUEL DEVICE. Referring to N. scheme 540, it is feared that with the maximum body it… | ||
| Scan58 | With sketches detailing design alterations for a tank's lid, sump, and drain plug. | ||
| View original record | To DA. from E. -2- EA/G28/8/20 Contd. Referring now to the lid carrying the stand pipe, this should be made with five fixing screws only, so that a central boss can be left between the two rear screws… | ||
| Scan59 | Instructions from Mr. Royce regarding design specifications for an indicator, needle valve, and filter, including a sketch with clearances. | ||
| View original record | To DA. from E. -3- E4/G28/8/20 Contd. Mr. Royce would like you to allow 2" laterally between the centres of the indicator and the stand pipe, each device being 1" out of centre with the tank itself,… | ||
| Scan60 | Construction of a copper-plated cork float and the design of baffles in a petrol tank. | ||
| View original record | To DA. from E. -4 E4/G28/8/20 Contd. The float is of cork copper plated, and care should be taken that the copper plating forms a petrol-proof joint with the end flanges which secure the cork float on… | ||
| Scan61 | Specifications for the distribution board on the 40/50 HP chassis, detailing materials, paint colours and terminal design. | ||
| View original record | TO DA. from E. Copy to CJ. (Struck through) " " BN. " " HS. " " EFC. " " BN. X.4173 RE DISTRIBUTION BOARD - 40/50 H.P. CHASSIS. ORIGINAL E1/G30/8/20. With further reference to our drawing Lec. 1277… | ||
| Scan62 | Design and forging issue with a Dynamo Suspension Clip. | ||
| View original record | To H8 from R. Copy to OD. " " DN. " " DA. " " EPC. " " EY. " " EP. X.3899 ORIGINAL R5/G30/8/20. 2 RE DYNAMO SUSPENSION CLIP (HS2/1G27/8/20.) Although the design of this originated in my office there… | ||
| Scan63 | Development of new ignition locks and combined control fittings. | ||
| View original record | To R.R. of America Inc. ORIGINAL. From R. (For attention of C.Y.) [Struck-through routing list including:] " " RPC. " " RV. X.4173 RE LOCKS. X 3504 5 RH/631/8/20. [Stamp: D 3 SEP 1920 RECEIVED] Many… | ||