Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 23\2\        Box Selection

IdentifierEntry
Scan001 Superior silence and ease of use of a competitor's (Napier) gearbox, suggesting investigation.
View original record CJ5/R2499. August 24th, 1909. F.H.R. Astell tells me that he has recently driven a 15 h.p. Napier. He was tremendously struck with the gear box. He says that the first and second gears were as silent…

Scan002 Gearbox noise, gear finishing processes using Brown & Sharpe cutters, and a comparison with Napier gearboxes.
View original record Filed 5/10/09 Suggests / Brown & Sharp 8th September 1909. RS/D889 C.J. With reference to your sheet CJB/R2489 attached, undoubtedly the change in the gear is due to the small diameter and light plate…

Scan003 Performance of special cutters from the No. 1100 box for making gears.
View original record C.J. (2) 8th Sept. 1909. special cutters as our No. 1100 box was done that makes better gears than the hob, especially with old 14 1/2° gears. [Handwritten note] This has been now confirmed here…

Scan004 Request for impressions of a Napier car following a drive from London to Derby.
View original record R.R. 476 (50 H) (X 166. 30.11.11). E.P. 683. ROLLS-ROYCE LIMITED, 14-15, CONDUIT STREET, LONDON, W. TELEGRAMS: "ROLHEAD," LONDON. TELEPHONES: 1654, 1655, 1656 GERRARD. DEPARTMENTAL MEMO. This column…

Scan005 The driving impressions of a Napier car compared to an early company model.
View original record R.R. 938A (100w.) X843 14.4.12.) G 9228 X437 EP33/T30512 Mr Johnson 30/5/12 RE NAPIER CAR. The general impression I got of this car in driving same from London to Derby was that of a poor Rolls-Royce…

Scan006 Typed report assessing the performance of a vehicle's engine, gears, and clutch.
View original record say were just Good. Engine gears Very fair all round evidently metal gears, rather inclined to be rattly at slow speeds and to sing at high speeds which is our usual trouble with metal gears. The gear…

Scan007 Engine performance issues including stalling, noisy tappets, weak acceleration, and crankshaft vibrations.
View original record H R H 254 (100w.) X543. 16.4.12. G 252R the R.R. otherwise the engine is very easily stopped. The engine does not run as slowly as the R.R. and engine running car standing is not so quiet. The worst…

Scan008 Engine performance issues including clatter, poor starting, and piston knocks.
View original record H.R. 33A (100w.) X643 16.4.19. G & W per hour, direct, is about 1600 revs, a speed which was often reached when on the open road and the engine at this speed made a terrible clatter. On the retard the…

Scan009 Test report on a vehicle's steering, springing, cooling and exhaust systems.
View original record R R 984 (100w.) X840 16.4.12/ G 2928 Steering is rather stiff and quite tiring after a days run, not as bad as the Lanchester. Steering had a certain amount of slack in the steering box , but did not…

Scan010 From F.H. Royce to Claude Johnson comparing the brakes and axles of Napier and Lanchester cars.
View original record Beacon Hotel Hindhead, Surrey 12th June 1912. Om Platford X 437 Mr Claude Johnson from F.H.R. The quietness of Napier brakes may be due to oil upon them the same as the Lanchester. The central brake…

Scan011 Departmental memo requesting a report on Napier brakes, following a memorandum from Mr Royce.
View original record R.R. 475 (50 H) (X.Sq. 16.4.12) E.P. 1658. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person…

Scan012 Requesting the Drawing Office to investigate a Napier engine's performance fitted with a Polyrhoe or a Rolls-Royce carburettor.
View original record R.R. 473 (100 H) (X 896. 3-5-12) E.P. 1780. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). DEPARTMENTAL MEMO. [Addressed to]: Mr Barrington for…

Scan013 Request to fit either a Polyrhoe or standard carburetter to a Napier Chassis engine.
View original record Re Napier Chassis. TBB1/L21612. Mr Elliott 21.6.12. Please arrange as soon as possible for a Polyrhoe (the small one) or our standard carburetter to be fitted to this engine. Whichever carburetter is…

Scan014 Experimental department report on a test of a Napier Plate clutch for jingling plates.
View original record Mr Barrington. X437 Sent to Mr Royce W. Bailey 4.9.12 X813 31.8.12 Test on Napier Plate clutch for "Jingling Clutch plates" Experimental Dept report as follows:- The Napier disc clutch does not jingle…

Scan015 Comparison of flywheel and clutch plate weights and specifications between R.R. and Napier models.
View original record X437 the flywheel which made all the noise(same as we found in the R.R clutch) If we increased the weights of these plates the jingling was very much worse. Comparative weights of plates.…

Scan016 Instructions to Mr Thornton regarding a rear wheel sent for repair requiring a rim to be refixed.
View original record R.R. 238 (24 B) (X. 373. 30.11.11) E.P. 670. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Thornton Order No.: L1666 Customer's No.: XA37 Ex "N" Car We have today sent into the Stores for despatch to our…

Scan017 Experiment No. 434, detailing the results of an obstacle track test on a competitor's Napier car.
View original record From Exp. Dept. Copies for: Mr Johnson. Mr Royce. Mr Spinney. Mr Nadin. X 437 Wor/Hy9/L7513 7th.May 1913. Report on Experiment No. 434 Tests of Napier Car by running over obstacles on the track in a…

Scan018 The condition of shock absorbers and steering components, noting a slack cap on the steering tube.
View original record (2) shock absorbers and connections and the cap on the rearmost end of the side steering tube. This cap is now a slack fit on the thread and can be rattled about rather a lot by the fingers. The off…

Scan019 Attaching the final report on the re-test of Napier Pivots on track X.434.
View original record Wor/SM12/L7513. Re test of Napier Pivots on track. X.434. Na. Sp. 7/5/13 We attach herewith final report on the above experiment for your information. p. Wor.

Scan020 Use of Bosch magnetos versus Watford magnetos.
View original record X.437 To By. from R. c. to CJ. R5/G17.5.20. X2375 RE MAGNETOS. X437 I have not yet consulted Mr. Johnson as to his opinion, but I certainly think we ought not to put Bosch magnetos on our car unless…

Scan021 Providing impressions from test drives of competitor cars at the Olympia Show.
View original record X437 To R. from Da. c. to CJ. c. to Wor. c. to En. c. to Hs. c. to EFC. Dal/AH11.11.20. Whilst at the Olympia Show I had a short run on each of the following cars :- X.4214. HISPANO-SUIZA X.441.…

Scan022 Continued vehicle performance report comparing a Lanchester car to others.
View original record Contd. -2- Dal/AH11.11.20. the back of the car very distinctly. Running light the engine was worse than the Hispano-Suiza and had a distinct knock due to the camshaft drive. In the case of none of…

Scan023 Comparative demonstration run for Mr. Glicksten Junr. between an Open Touring car and a competing Napier.
View original record Handwritten notes: Top Left: JHD. (circled) Top Right: X437, X4594, X788, 2 Left Margin: X437, X2565, X788 Typed document: TO E.J. (Copy to O.H., W.H., Hs., H.S., T.H.) On the 28th inst. I gave Mr.…

Scan024 Competitor reliability and arranging a test run of a Napier car.
View original record R.H. 235 a (50 T) (S.B. 929. 19-11-19) G. 2527. PAGE 2. Of course I cannot vouch for the reliability of any of the above figures relating to the Napier. Mr. Glicksten also stated that the driver of…

Scan025 Letter from O.D. Cars Ltd. proposing the use of their patented inventions on a new model small car.
View original record CUSTOMERS' CARS DRIVEN BY OUR STAFF ARE AT OWNERS' RISK. TELEGRAMS - "ODCAR, BELFAST." TELEPHONE - BELFAST, 1044. O.D. CARS, LTD. BELFAST. HEAD OFFICE AND WORKS:- DUNMORE, ANTRIM ROAD, BELFAST.…

Scan026 Page 2 of a letter from O. D. Cars Limited outlining a design philosophy for a durable, low-maintenance car and detailing the successful testing of a prototype chassis.
View original record 2. 20 years. We have observed that the average person, whether he be owner driver or chauffeur, will only give his car reasonable attention while it is comparatively new, say during the first six…

Scan027 Description of the lubrication systems for the spring, rear axle, front axle, power unit, safety switch, and clutch.
View original record SPRING LUBRICATION -- The springs are cantilever front and rear. Connected to the centre trunnion of each spring is an oil pipe which runs round inside the chassis frame and is connected to the engine…

Scan028 The design of the brake system to compensate for torsional spring differences.
View original record BRAKES -- There is no compensating device in the ordinary manner, fitted to the brake operating shafts but to compensate for the difference in torsional spring between the levers on the right and left…

Scan029 Letter from O.D. CARS LTD. following up on a previous letter due to uncertainty with the mail service in Ireland.
View original record CUSTOMERS' CARS DRIVEN BY OUR STAFF ARE AT OWNERS' RISK. TELEGRAMS:- "ODCAR, BELFAST." TELEPHONE:- BELFAST, 1044. O.D. CARS, LTD. BELFAST. HEAD OFFICE AND WORKS- DUNMORE, ANTRIM ROAD, BELFAST.…

Scan030 Letter to O.D. Cars Ltd. in Belfast acknowledging receipt of their correspondence.
View original record X3561 Hs6/LG. 7th. Dec. 1921. O.D. Cars Ltd., Dunmore, Antrim Road, Belfast. Dear Sirs, Referring to your letter of the 2nd. inst. Your letter of the 21st. Nov.21 is to hand and the items are…

Scan031 Follow-up letter from O.D. Cars Ltd. regarding a previous communication and a potential visit by a shareholder.
View original record CUSTOMERS' CARS DRIVEN BY OUR STAFF ARE AT OWNERS' RISK. TELEGRAMS:- "ODCAR, BELFAST." TELEPHONE:- BELFAST, 1044. O.D. CARS, LTD. HEAD OFFICE AND WORKS:- BELFAST. DUNMORE, ANTRIM ROAD, BELFAST.…

Scan032 Letter from G. Heyn & Sons, Ltd. concerning a postponed visit to England to demonstrate an 'O.D.' Car.
View original record X3561 TELEPHONE Nos.: BELFAST { 2097. 2098. 2099. TELEGRAPHIC ADDRESS: "HEYN, BELFAST." CODES: WATKINS, SCOTTS, AND PRIVATE CODES. "Head" Line & "Lord" Line BELFAST AND DUBLIN FROM NEW ORLEANS.…

Scan033 Letter to 'Head' Line & 'Lord' Line declining a list of patents and an offer to examine a car.
View original record X8561 HS3/LG. 2nd. Feb. 1922. "Head" Line & "Lord" Line, Head Line Buildings, Victoria Street, BELFAST. Dear Sirs, For the attention of R. Heyn Esq., We regret the delay in answering your letter of…

Scan034 Chassis that arrived from New York, detailing the fitted Westinghouse starting motor and dynamo.
View original record Copy. X.1086 Rolls-Royce Limited, 14 & 15, Conduit Street, 04/TB8114. X.1086. X3966 London. W. 2432. Vanderbilt. This chassis came to Barker's yesterday on arrival from New York. I thought you might…

Scan035 Forwarding a letter from the Sales Department about a self-starter fitted on chassis 2432 for Vanderbilt.
View original record R.R. 657. (100H) (VV 85. 19.11.13) E.P. 3468. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (Four Lines). P24/TJ9114. Names and Indicating letter. Initial…

Scan036 Request for opinions on a Westinghouse self-starter that has been fitted to a car.
View original record X.1086. Wor/EM10/L15114. Re Westinghouse Self-Starter. X.1086. W/S. O. 15-1-14. We were interested in your memo 04/TB8114 stating that a Westinghouse self-starter has been fitted to one of our cars,…

Scan037 Investigation and test of a Westinghouse Engine Starter on car 2432 Vanderbilt.
View original record ROLLS-ROYCE LIMITED, 14 & 15, CONDUIT STREET, LONDON, W. TELEPHONES: 1654, 1655, 1656 (GERRARD) TELEGRAMS: "ROLHEAD," REG., LONDON. Handwritten: X.1086 02/TB27114 Names and Indicating letter. |…

Scan038 Acknowledging receipt of photographs of a Westinghouse Engine Starter and confirming they are being sent to Mr. Royce.
View original record X.1086 02/TB27114. WtoS. O. WOR15/T3214. Feb. 3rd. 1914. We thank you for the photographs of the Westinghouse Engine Starter. We are sending them to Mr. Royce, and he will no doubt find them useful.…

Scan039 Letter detailing customer feedback on a Westinghouse Engine Starter fitted to chassis 2432.
View original record X.1086 Wor/Mcr23/14214. Re Westinghouse Engine Starter. X.1086 R. 4-2-14. One of the above has been fitted to chassis 2432 - Vanderbilt - and we are endeavouring to obtain the owner's opinion of the…

Scan040 Customer feedback on a Westinghouse Engine Starter.
View original record ROLLS-ROYCE LIMITED, 14 & 15, CONDUIT STREET, LONDON, W. TELEPHONES: 1654, 1655, 1656 (GERRARD) TELEGRAMS: "ROLHEAD," REG. LONDON. 028/A23214 X 1086 Westinghouse Engine Starter 23. 2. 14. With further…

Scan041 The performance of a Westinghouse engine starter fitted to chassis 2432 (Vanderbilt).
View original record X.1086 Wor/Mcr12/L24214. Re Westinghouse Engine Starter. X.1086. J. 24-2-14. R. Na. Mr Hives. In reference to the Westinghouse engine starter which was fitted to chassis 2432 - Vanderbilt -…

Scan042 Rejecting the Lucas Self-Starter design as unsuitable and crude.
View original record X.1086 COPY. COPY. To J. from R. Copy to Na. R3/P 24.2.14. X 543 LUCAS SELF-STARTER. X 1086 With reference to the Lucas Self- Starter drawing which I received this morning (23.2.14) I am sorry to say…

Scan043 Request for the catalogue and description of the Westinghouse Self-Starter for Mr Royce.
View original record R.R. 215 A (150 M) (V.V. 585. 23.2.14) G. 2363. X. 1086 Wor/Mcrl8/L2314. Re Westinghouse Self-Starter. X.1086 Na. 2-3-14. Mr Royce states that he would like to see full particulars of the Westinghouse…

Scan044 Internal memorandum requesting a catalogue for a Westinghouse Self Starter for Mr. Royce, with subsequent updates on the request's status.
View original record ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 476 (FOUR LINES). Wor/Mcr12/B18314. X/1086 [Column of names and indicating letters on the left] Initial of person…

Scan045 Acquisition of a catalogue for a Westinghouse Self-Starter.
View original record Re Westinghouse Self-Starter. X.1086 17-4-14. Referring to your memo Na4/IB24314, have you yet been able to obtain Catalogue and description of the above self-starter ? If so we shall be glad to have…

Scan046 Comparing the performance of Bosch, Bijur, and Westinghouse starter motors and generators.
View original record X.1086. Oyl - M 27.4.20. April, 27th 1920. To: Mr. F. H. Royce. Copy to Mr. E.F. Clark. Copy to Mr. Barrington. Copy to Mr. Nadin. Copy to Mr. Manning. Copy to Gardner. Copy to Mr. Belnan. From: Mr.…

Scan047 Comparative analysis of Bijur and Westinghouse starter motors for engine use.
View original record Contd. -2- Cyl - M27.4.20. ularly in the range of speeds between 1500 and 2500 R.P.M. which will be used in turning the engine. Since, however, a torque of more than 4 ft. lbs. is seldom required…

Scan048 Performance comparison of Bijur and Westinghouse starter motors, including torque, speed, and current consumption.
View original record Contd. -3- Oyl - M27.4.20. BIJUR. Assumed Engine Torque 45 ft. lbs. Gear ratio. Starter Torque Ft. lbs. Speed R.P.M. Starter Engine. Starter. Amperes. 12 to 1 4 1900 158 135 15 to 1 3.2 2080 139 115…

Scan049 Comparison of Bosch, Bijur, and Westinghouse starter motor and generator construction and performance.
View original record Contd. -4- Oyl - M27.4.20. of 12 to 1. This suggests that it might be possible to omit the epicyclic gear on the motor casing, but extensive tests we would have to be made at very low temperatures…

Scan050 Comparison of Lucas, Bosch, and Bijur motor and generator systems for suitability in cars.
View original record Contd. -5- obtained on the production of generators, are rather better than the Lucas. We think the work is cheap on this machine and do not believe we should consider it in comparison with the…

Scan051 Continued memo discussing points about motors, comparing the Bijur and Westinghouse models.
View original record R.R. 234A (100 T) (S.H. 159, 11-8-20) G 9800 Contd. -6- Cy1 - M27.4.20. b... The Bijur work is known by us to be good from past experience. c... They are a big corporation and have a reputation for…

Scan052 Criticising the performance curves of dynamos and motors and discussing the motor's reduction gear.
View original record X1086 To EFC. from R. Copy to CJ. R4/G18.5.20. X.294. X.1058. X.4030. X.543. X.4007. X.3066. X.1086. RE DYNAMOS AND MOTORS. Will you kindly criticise the curves of the dynamos and motors sent by Mr.…

Scan053 Comparative tests of starter motors, recommending the Bijur model and advising on cold weather starting procedures.
View original record X.1086 COPY. To Cy. from R. Copy to CJ. " EFC. X.3978. X.543. X.1058. X.294 RE STARTER MOTORS AND GENERATORS. R5/G29.5.20. X.1086 X.4004 I am in receipt of the comparative tests of the Bijur…

Scan054 Aero engine starting motors, comparing Bijur and Bosch models and emphasizing reliability.
View original record Contd. -2- R5/G29.5.30. You will remember that in all the aero engine work the engines were started by turning them at an exceedingly slow speed and we have received no complaints about the difficult…

Scan055 Confirming receipt of Westinghouse and Bijur parts from America for inspection and testing.
View original record X 1086 2 To R. from EFC c. to CJ. c. to E. c. to Hs. c. to Da. c. to EWT. for U.S.A. EFC5/T10.9. 20. --- X.1086 X.3966 X.1058 RE WESTINGHOUSE MOTOR AND GENERATOR X 3893B✓ BIJUR MOTOR AND SWITCH. We…

Scan056 Preliminary report on a Westinghouse Starter Motor.
View original record RR 300 (120B) (SF 349 24-1-19) MP 200552 X 1086 91206 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Sept. 28th '20 To E.F.C. Order No. P.A.22. Customer's No. Re X 1086 Preliminary Report on Westinghouse Starter…

Scan057 Inspection report detailing the condition of an armature, including its windings, brushes, and segments.
View original record RR 300 (120B) (SF 349 24-1-19) MP 200552 91207 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. Order No. P.A. 21. Customer's No. Re K. Sept. 28th 1920 tinned. There is only one pig-tail per brush, and…

Scan058 Instruction sheet detailing the composition of bearings and the total weight of a machine.
View original record RR 300 (120B) (SF 349 24-1-19) MP 200552 91208 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E. F. C. Order No. P.A. 21. Customer's No. Re X Sept. 28th 1920 It has plain white metal bearings, with a piece of…

Scan059 Technical critique of a Westinghouse motor, noting issues with its construction and components.
View original record R.H. 238a (100 T) S.G. 643, 19-2-20; G 2618 To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to Da. c. to By. c. to PN. c. to EWE. for R.R. Inc. X1086 EFC4/T29.9.20. X.1086. RE WESTINGHOUSE MOTOR.…

Scan060 Technical description of a motor's construction, components, and weight.
View original record Contd. -2 EFC4/T29.9.20. by rivets to the commutatoreend plate with an additional ring of insulation between the two. The end plate is of the colour of aluminium but is decidedly heavier. The bearing…

Scan061 Second report detailing the specifications of a Westinghouse starter motor.
View original record RR 300 (120B) (SF 349 24-1-19) MP 200552 X.1086 91216 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Oct 4th 1920 To E.F.C. Order No. P.A. 24 Customer's No. Re X. 1086 Second report on Westinghouse Starter Motor…

Scan062 Instruction sheet detailing specifications for an electrical winding and armature assembly.
View original record RR.300 (120B) (SF 349 24-1-19) MP 200552 91217 ROLLS-ROYCE LIMITED. INSTRUCTIONS. Gd 4th 180. To E.F.C. Order No. P.A. 23. Customer's No. Re X 2 in parallel. (e). Resistance of field circuit = .00608…

Scan063 Performance curve for a 751 Frame Motor at 12 Volts.
View original record X. 1086 CURVE NO. 91524 Perf Spec 82584 Test Spec 110645A Performance Curve for 751 Frame Motor 12 Volts Motor s# 273347 Motor Starts at 54 Amps Speer 1K Brushes RPM Volts & lbs ft Torque Speed…

Scan064 Outline drawing of an automobile engine starting motor, frame #751, with a gear drive and special S.A.E. flange.
View original record AUTOMOBILE ENGINE STARTING MOTOR. FRAME #751 - GEAR DRIVE - SPECIAL S.A.E. FLANGE - OUTLINE X 1086 10 9/16" 21/32" 11/32" 2 13/16" 4 5/8" dia 4 31/32" dia (4.969 / 4.953) 3 5/8" dia (3.625 / 3.623) 2"…

Scan065 Westinghouse's electrical work, automobile components, and various uses for Bakelite-Micarta.
View original record Contd. Extract from X.1109 -4- such purposes. Westinghouse Figures: The Westinghouse Co. can claim a great experience in electrical work, sharing as they do with the General Electric Co. the greater…

Scan066 Characteristic curve graph for a Westinghouse starting motor, frame 54 C6.
View original record Westinghouse Starting Motor Frame 54 C6 Perf Spec 5.O.D Characteristic Curve TB 2999 PAI E.S. 1/2 F83846 P55 Dec 1/38 1-6-21 Curve 102163 X.1086 AXES: R.P.M Volts & Torque lbs ft Amperes Horse Power…

Scan067 Westinghouse 56 C.G. starting motor tests on a 6-cylinder engine.
View original record X. 1086. 4.F-X. Original High Speed Winding ROLLS ROYCE OF AMERICA, INC. WESTINGHOUSE 56 C.G. STARTING MOTOR TESTS ON ROLLS-ROYCE ENGINE - 6 CYL. 4½x 4¾ TEST #1. Feb. 8, 1921. Exide Battery #6-LXR-9,…

Scan068 Test results for a Westinghouse starting motor on a 6-cylinder engine.
View original record X.10864.E-X. Trial Improved Winding. on EX. ROLLS - ROYCE OF AMERICA, INC. WESTINGHOUSE 56 C.G. STARTING MOTOR TESTS ROLLS - ROYCE ENGINE, 6 CYL., 4½ x 4¾ April 5, 1921. R.P.M. ENGINE VOLTS BATTERY…

Scan069 Technical specifications for the Westinghouse Type 77 BR Generator.
View original record X. 1086. WESTINGHOUSE STARTING & LIGHTING EQUIPMENT FOR ROLLS-ROYCE X 3966 X 1086 GENERATOR - TYPE 77 BR Apr. 11, 1921. 1. GENERAL: The type 77 BR generator is built to operate with our potential…

Scan070 Page 2 of a technical specification detailing the construction of the frame, field poles, field coils, and brackets for a generator.
View original record ROLLS-ROYCE - 2 - 4/11/21 to size, the diameter being held to plus or minus .001". The micarta between the commutator bars is undercut 1/32 to 5/64" insuring good commutation and long brush life, also…

Scan071 The specifications for bearings, brush rigging, and terminals.
View original record ROLLS-ROYCE - 3 - 4/11/21 7. BEARINGS: Strom ball bearings of the non-separable, entire-ly enclosed type, made by U. E. Ball Bearing Co., are used. These are the same type of bearing which are used in…

Scan072 The performance and specifications of a generator, regulator, and starting motor.
View original record ROLLS-ROYCE - 4 - 4/11/21 10. PERFORMANCE: The 77 BR generator is designed to operate with our potential regulator, and this combination gives ideal battery charging performance. When the battery is…

Scan073 Specification sheet detailing the construction of an armature, frame, field poles, field coils, and brackets.
View original record ROLLS-ROYCE - 5 - 4/11/21 that of the 77 BR generator, except bronze sleeve bearings are used. Aluminum brackets reduce the weight. 2. ARMATURE: The armature core is built up from ".028 high…

Scan074 Specifications for bearings, lubrication, brushes, terminals, and performance of a starting motor.
View original record ROLLS-ROYCE - 6 - 4/11/21 7. BEARINGS AND LUBRICATION: The highest grade phosphour bronze bushing is used for both drive and commutator end. A clearance of ".002 to ".003 is provided between the shaft…

Scan075 Comparison of Rolls-Royce and Westinghouse motors, and notes on 4-EX equipment.
View original record ROLLS-ROYCE - 7 - 4/11/21 to give higher efficiency and higher speed than the Rolls-Royce starting motor, throughout the normal operating range. Referring to curve 102168, the higher efficiencies…

Scan076 Comparison of Westinghouse generators and starting motors with the company's own equipment.
View original record OLLS-ROYCE - 8 - m/earlh 4/11/21 Samples for Mr. Belknap's car will have this material between the coils and the frame. Mr. Olley has been furnished a sample sheet of this material. 5. COMPARISON OF…

Scan077 Comparison of Rolls-Royce and Westinghouse starting motors, detailing performance metrics.
View original record COMPARISON OF ROLLS-ROYCE AND WESTINGHOUSE STARTING MOTORS. R. P. M. TORQUE @ 1 Ft. WEST. R.R. % INCREASE 1 3900 2740 40 2 2780 1990 40 3 2310 1590 45 4 1960 1350 45 6 1430 1050 36 8 1050 850 23.5 10…

Scan078 Issues with a Bijur starter motor, comparing battery performance, and detailing the improvements of a new model.
View original record X1086 CC Mr. Nadin. Mr. Bagnall. Mr. Hulley. Mr. Southern. Mr. Caswell. OY1-G 18621 May 18th 1921. To Mr. Hives: From Mr. Olley. X.4031. X.3560 X.1402. X.294. X.3231. X.1086 X.2082. X.1088 - ME BIJUR…

Scan079 Technical letter comparing starter motor and generator performance, discussing electrical loads and cold weather starting issues.
View original record -2- Contd. Reverting again to the enclosed chart, you will see that at 10 ft. pounds torque, which represents approximately cold weather conditions, the R-R motor will consume 200 amps and will turn…

Scan080 The performance and regulation of different generator and regulator systems for vehicle batteries.
View original record -3- Contd. With regard to the amount of regulation possible, we are sending with 4-EX a Westinghouse generator, starting motor, and regulator which we have run about 3,000 miles on 4-EX and I think…

Scan081 Performance curve graph comparing a Rolls-Royce motor (#1) and a Westinghouse motor (#2).
View original record #1 ROLLS-ROYCE MOTOR CURVE 10217/ #2 WESTINGHOUSE 10216/ CURVE #32168 R.P.M. TORQUE LBS, FT & VOLTS. HORSE POWER E.J. Apostle 3-29-21 CURVE # 10216/B #1 EFFICIENCY #2 EFFICIENCY #1 RUNNING TORQUE #2…

Scan082 Performance curve graph for a Westinghouse Starting Motor, Frame 56 C.G.
View original record WESTINGHOUSE STARTING MOTOR FRAME 56 C.G. 5" O.D. PERFORMANCE CURVE . CURVE # 102167 EN T.B. 2399, P. 68 JE Trestle 3-26-21 Curve 102167 CORNELL CO-OPERATIVE SOCIETY, ITHACA, N.Y. AXES: R. P. M.…

Scan083 Graph comparing the power characteristics of Bijur and Westinghouse starter motors.
View original record CURVES OF POWER CHARACTERISTICS. LATEST BIJUR AND WESTINGHOUSE STARTER MOTORS WTS OF MOTORS [WITHOUT GEAR] R-R. 20 LBS BIJUR. 30 LBS W'HOUSE. 20 LBS CURVES ---- R-R ----- W'HOUSE - - - - - BIJUR AXIS…

Scan084 Extract regarding American parts, specifically the Westinghouse generator, regulator, and starter motor for the 4-EX model.
View original record R.R. 238M (100 T) (S.H. 798, 10-12-30) G. 3948 X1086 Extract from Cyl/G3.6.21. RE AMERICAN PARTS ON 4-EX. X.3966 X.4031 X.10E (3) WESTINGHOUSE GENERATOR, REGULATOR AND STARTER MOTOR: These machines…

Scan085 Letter discussing the results of tests on Westinghouse batteries and starter motors.
View original record R. R. 298A (100 T) (S. H. 159, 11-8-20) G. 5000 X1086 Cy4-G8621. June 8, 1921. X.3654. X.1086. X.802. X.4206. X.1198. X. Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England.…

Scan086 Performance comparisons of Westinghouse, Bijur, and Rolls-Royce starting motors and various batteries on the 4-EX test vehicle.
View original record -2- Contd. We subsequently ran 4-EX for a long time with the original Westinghouse starting motor and the SJW battery, and found that under all conditions of very cold engine, after the car had been…

Scan087 Analysis of vehicle starting system performance with different battery and cable configurations.
View original record H.H. 950A (160 T)(S.H. 159. 11-8-28) G. F500 -3- Contd. The line is an S.A.E. standard and is 12 volts at zero amps, 10 volts at 200 amps, and 8 volts at 400 amps. (straight line characteristic). If…

Scan088 Technical comparison of different battery models and starter cables, including their specifications and costs.
View original record R.R. 582A (100 T) (S.H 159. 11-8-20) G. S500 Cy4-C8621. -6- Contd. BATTERIES (Cont'd). Exide 6LXR-9-1 (present battery) Length in Inches Width in Inches Height in Inches Weight Pounds. Ampere Hour…

Scan089 Modifications to the battery position and starter cable for improved performance.
View original record Oy4-G 8621. -5- Contd. .625 lbs. per ft. or 15 lbs. per car. Voltage drop .16 volts per 100 amps. The external diameter of the No.0 cable is .6" over the braid. From the above particulars I think it…

Scan090 Extract from a Westinghouse document comparing their starter motor to a Rolls-Royce Lucas motor.
View original record X.1086 11-4-21 X.1086 - EXTRACT RE WESTINGHOUSE STARTER MOTOR FROM WESTINGHOUSE DESCRIPTION OF THEIR STARTING & LIGHTING EQUIPMENT FOR ROLLS-ROYCE. 10. PERFORMANCE. The 56 CG starting motor is…

Scan091 Comparison of a Lucas motor and a Westinghouse 56 CG motor, including their respective weights.
View original record Contd. -2- is shown on our curves 102167, 102168, and 102170. The weight of the Rolls-Royce Lucas motor is 30 lbs., and the weight of the Westinghouse 56 CG motor is 20 lbs,8 ounces. The following…

Scan092 Comparison table of Rolls-Royce and Westinghouse starting motors.
View original record COMPARISON OF ROLLS-ROYCE AND WESTINGHOUSE STARTING MOTORS. Torque / @ 1 ft. R.P.M. WEST. R.R. % Increase. EFFICIENCY. WEST. R.R. AMPERES. WEST. R.R. HORSE POWER. WEST. R.R. % INCREASE 1 3900 2740 40…

Scan093 Performance curve graph for a Westinghouse starter motor, showing various metrics against torque.
View original record X1086 STARTER MOTOR BRAKE EFFICIENCY ELECTRICAL H.P. EFFICIENCY VOLTAGE AMPERES B.H.P. R.P.M. SPEED AMPERES B.H.P. EFFICIENCY VOLTS X.1086. WESTINGHOUSE STARTER MOTOR FRAME 56C.G-5"O.D. (U.S.A.…

Scan094 Reverse of document showing an archival stamp from the Print Room.
View original record ROLLS-ROYCE, LIMITED PRINT ROOM. 3 - MAY 1923 DERBY

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