Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Requesting the testing of an Alemite grease gun and its potential fitting to a chassis for Mr. Royce. | ||
| View original record | To MS. from E. Copy to Ed. E.P.C. X.4334 ORIGINAL EFC FEB 1922 EL/61/2/21. D 4 FEB 1921 RECEIVED RE ALEMITE GREASE GUN. RECEIVED Referring to the Alemite grease gun, which you left at West Wittering… | ||
| Scan1 | Proposing an alteration to the Goshawk II engine's cylinder studs to prevent the stud boss from bursting. | ||
| View original record | To. DA. from E. Copy to C.J. [Text Struck Through] EFC. X.4225 RE "GOSHAWK II" CYLINDER STUDS. In reply to the point raised by Mr. Bailey that the taper undercut on the cylinder studs for "Goshawk II"… | ||
| Scan2 | Three methods for obtaining a square shoulder on 'Condor II' cylinder studs. | ||
| View original record | To-Sh. from E. Copy to NY. [strikethrough text] EFC ORIGINAL 1922 EL/03/2/21. No. X4225. RE "CONDOR II" CYLINDER STUDS. RECEIVED. With further reference to memo EL/02/2/21 concerning the above, Mr.… | ||
| Scan3 | Page discussing the heat treatment and normalising conditions for a steel rod after brazing. | ||
| View original record | To DA. from E. -3- E1/03/2/21 Contd. brazing metal. After brazing, the rod should be allowed to cool in air so as to leave the steel in a normalised condition. If the remainder of the rod has been got… | ||
| Scan5 | Design of the rear spring, shackle, and cantilever assembly for the 'Goshawk II' project. | ||
| View original record | To H.S. From E. Copy to R.Y. EFC. ORIGINAL. (stamp) EFC (stamp) FEB 7 1922 (stamp) EI/GS/2/21. RE "GOSHAWK II" REAR HUB IRON AND " " X.4262 & AXLE CLEANER. We send you RECEIVED drawing Lec.1343 giving… | ||
| Scan6 | Manufacturing and fitting of the dumb iron end and 'U' bolts for spring attachment. | ||
| View original record | To DA. from E. -2- E1/35/2/21 Contd. been knocked out. The dumb iron end should be drop forged to the design shewn, and bolted and rivetted to the frame, after being brazed to the cross tube.… | ||
| Scan7 | Design changes to the 'Goshawk II' front spring and an alternative method for attaching the dumb irons. | ||
| View original record | ORIGINAL. To DA From E. (DA is struck through) Copy to CL (CL is struck through) [Illegible text struck through] RPC. X.4262 --- RE "GOSHAWK II" FRONT SPRING (DRG) FRONT DUMB IRONS. L.c.1339. ---… | ||
| Scan8 | Mr. Royce's suggestions for modifications to the Goshawk II axle casing and bearing arrangement to prevent oil leakage. | ||
| View original record | from E. Copy to Exp. EPC. X4254 E C FEB 9 1932 ORIGINAL. RECEIVED INTER-DEPTAL INTERVERBAL - "GOSHAWK II" D 3 H1/G/12/1931. 21/DEC/31. RECEIVED With reference to N. scheme 738, the possibility of the… | ||
| Scan9 | Continued memorandum detailing specifications for a bolt and a ratchet locking ring. | ||
| View original record | To BA. from E. -2- E1/C7/2/21 Contd. This bolt will be put in position before the universal nut is split pinned, and it should have a long head of .375" diameter. Referring to the ratchet locking ring… | ||
| Scan10 | Covering memo for a report on the running of the 4.EX car in America. | ||
| View original record | To R. From Hs. c.c. to J. c.c. to N. c.c. to OR. c.c. to DY. c.c. to ED. c.c. to EH. ORIGINAL E.F.C. 8 ... 1921 (RECEIVED) Hs4/LG7. 2. 21. X. 3764. RUNNING OF 4. EX CAR IN AMERICA. Attached herewith… | ||
| Scan11 | The performance of the 4.EX car during a three-thousand-mile test run in the U.S.A. | ||
| View original record | RUNNING OF 4.EX. IN U.S.A. 4.ex Car has now completed over three thousand miles running in U.S.A. We have just finished a trip of two thousand miles from Springfield to Albany, Syracuse, Buffalo,… | ||
| Scan12 | Report comparing the cold-weather starting performance of cars in America and Derby, detailing issues with misfiring and distribution. | ||
| View original record | -2- We have had experience at Derby, and Mr. Royce has had the experience, of using inferior petrol and a cold engine. We know that under those conditions the car does not do itself justice and is… | ||
| Scan13 | Comparison of car performance issues between English and American models, focusing on carburetion, gasoline quality, and pistons. | ||
| View original record | -3- American cars tested in England do not show up to such a great advantage as they do out here. I consider that in starting up and getting away, the Rolls-Royce car in England compares favourably… | ||
| Scan14 | Car performance issues in American conditions, customer dissatisfaction, and suggested modifications. | ||
| View original record | -4- 6. Excessive wear on engine parts. 7. Poor consumption. I believe that when we obtain the same standard of carburation under American conditions as we obtain in England ninety per cent of the… | ||
| Scan15 | Necessary modifications for vehicles operating in cold American conditions, focusing on engine starting, battery, steering, and springing. | ||
| View original record | -5- 5. Tests should be carried out to see whether if the engine is turned faster it will start up better when cold. At present with the engine and battery very cold, say about 15°F., the engine is… | ||
| Scan16 | Minutes of a conference discussing left-hand drive steering, gearboxes, and carburation issues. | ||
| View original record | COPY. MINUTES OF CONFERENCE HELD ON WEDNESDAY EVENING JAN. 12. Present - Mr. Bagnall. Mr. Beaver. Mr. Belnap. Mr. Castell. Mr. Hives. Mr. Keim. Mr. Manning. Mr. Nadin. Mr. Olley. Mr. Southern. LEFT… | ||
| Scan17 | Meeting discussing modifications to induction pipes, pistons, and instrument board fittings to address customer complaints and conditions in the American market. | ||
| View original record | -2- to the distribution can be made by applying more heat to the induction pipe. It was agreed as a preliminary step that this should be fitted to all cars which show defective carburation in an… | ||
| Scan18 | Meeting minutes discussing the fitting of magnetos, service issues affecting sales, starting and lighting equipment, and design changes. | ||
| View original record | -3- MAGNETO. Mr. Hives agrees to recommend to Mr. Royce and Derby. the fitting of a Bosch magneto to Springfield built car. He agrees to cable decision on this matter at the earliest possible moment.… | ||
| Scan19 | Meeting notes discussing design suitability, American market adaptations, and customer demands for new fittings. | ||
| View original record | -4- Mr. Keim considered that no criticism would be met with on the score of the general suitability of the design for several years. It was pointed out in this connection that the tendency of… | ||
| Scan21 | The suitability of U.S.A. Bosch magnetos, comparing radial and flat distributors, and long versus short cams. | ||
| View original record | To-HS. from R. Copy to CE. " " EFC. " " R-R of America. (For attention of CY.) ORIGINAL RECEIVED 16 FEB. 1921 R9/G9/2/21 EFC FEB 10 1921 RECEIVED (4 X 3902 X 3916 RE MAGNETOS - U.S.A. I understand… | ||
| Scan22 | 'Goshawk II' N. Scheme for a spring attachment to an axle. | ||
| View original record | To DA from E. Copy to GJ. [Strikethrough] RH. [Strikethrough] HS. [Strikethrough] EFC. X.4262 ORIGINAL E2/G9/2/21. RE "GOSHAWK II" - N. SCHEME. SPRING ATTACHMENT TO AXLE. The above scheme showing the… | ||
| Scan23 | From Mr. Royce detailing requested alterations to the 'Goshawk II' front spring shackle design. | ||
| View original record | To Mr [crossed out] from E. [crossed out] EFC. X.4261. ORIGINAL RECEIVED 10 FEB 1921 EFC 3 E3/GS/2/21.O RECEIVED. 741. RE 'GOSHAWK II' - FRONT SPRING SHACKLE -N. SCHEME 741. Kindly note the following… | ||
| Scan24 | Design notes from Mr. Royce regarding alterations to the Goshawk PT rear axle tube, brake, and hub scheme. | ||
| View original record | To-Dk. From E. Copy to E.H. EPC. X ORIGINAL 10 FEB 1921 RECEIVED EFC FEB 10 1921 RE "GOSHAWK PT" - REAR AXLE TUBE, BRAKE, AND HUB. N. SCHEME. EPC. X.4257 Kindly note the following points which Mr.… | ||
| Scan25 | From 'E' to 'DA' discussing the road spring attachment, axle tube strength, and brake mechanism. | ||
| View original record | TO DA. from E. -2- EB/09/2/21 Contd. (5) The means of attaching the road spring to the axle should be as per our recent Lec. drawing dealing with this part. (6) The axle tube, Mr. Royce thinks, is on… | ||
| Scan26 | Alterations requested by Mr. Royce for the 'Goshawk II' components. | ||
| View original record | TO D.A. From E. EFC. X.4262 ORIGINAL. RE "GOSHAWK II" - THIRD SPEED GEAR AND FRONT ANCHORAGE M. Scheme 748 RECEIVED Kindly note the following points which Mr. Royce would like altered:- (1) The… | ||
| Scan27 | Requested alterations for the 'Goshawk' footbrake adjustment. | ||
| View original record | To DA. from E. Copy to [illegible strikethrough] EFC. X 4258 RE "GOSHAWK" - FOOTBRAKE ADJUSTMENT. N. 734. [Handwritten Note Top Right]: Sketch attached to DA's copy only. 3 E1/09/2/21 [Stamp]:… | ||
| Scan28 | Failures of Cambridge Thermometers and comparing them to a superior Foxboro instrument from the U.S.A. | ||
| View original record | To EY. from Hs. C. to ER. RR/A 3 X.3565 X.3903 RE. THERMOMETERS. Cambridge & Foxboro' (U.S.A) We have had three or four cases of failures with the Cambridge Thermometers of the soldered joint breaking… | ||
| Scan29 | Timing of fitting a thermometer and the requirement for a more reliable instrument. | ||
| View original record | Contd. -2- He thought then that there would be no necessity of fixing the Thermometer. We feel it will be a long time before we get this through so that we shall have to take up the question again of… | ||
| Scan30 | Comparison of the Cambridge and USA Foxborough thermometers with notes on fitting. | ||
| View original record | Handwritten: Hs Cambridge Thermometer v poor in Comparison to USA Foxborough. Ref again fitting Thermometer to 40/50. By R.S.OR to L 'peranuald', since the shutter (in front) operated directly by… | ||
| Scan31 | Materials and construction of battery cell separators, comparing various makes. | ||
| View original record | To EFC. from R. Copy to CJ. X.664 X.604 ORIGINAL RECEIVED RE BATTERIES. 4 D 14 FEB 1921 R4/G11/2/21. RECEIVED I should be pleased if you would send me a specimen cell of the Chloride up-to-date, and… | ||
| Scan32 | Modifications to the 'Goshawk II' crankcase front arms and wheelcase. | ||
| View original record | To D.A. from E. E.F.C. ORIGINAL FEB 14 1921 RECEIVED E3/G12/2/21. 3 X.4220RE "GOSHAWK II" - CRANKCASE FRONT ARMS. We send you herewith drawing Lec.1345 giving particulars of the front arms of the… | ||
| Scan33 | The 'Goshawk II' water pump fittings and connections, detailing the draining procedure for the cooling system. | ||
| View original record | F C [Illegible stamp text] E.H.C. RECEIVED. ORIGINAL. E2/G12/2/21. RE "GOSHAWK II" WATER PUMP FITTINGS X.423/ AND WATER CONNECTIONS. We send you herewith drawing Lec.1347 shewing the above. The… | ||
| Scan34 | Arrangement of a dynamo for the 'Goshawk II' crankcase and a request for supplier catalogues. | ||
| View original record | To EFC. from E. Copy to CJ. [struck through] " " WOP. [struck through] " " HS. [struck through] " " DA. [struck through] " " BY. [struck through] [STAMP: ORIGINAL] [Top Right] E2/G14/2/21. 4… | ||
| Scan35 | Issues and design evolution of thermostats and radiator shutters for engines, considering practices in the U.S.A. | ||
| View original record | To R.R. of America Inc. } From R. (For attention of C.F.) Copy to G.L. EDC. ✓ RG/G15/2/21. WN ORIGINAL. RECEIVED FC FEB 16 1921 X.3563 RE THERMOSTATS. X.3456. X.3499 The combination of thermostat with… | ||
| Scan36 | Optimal design and placement of radiator louvres and thermostats. | ||
| View original record | To CY. & HS. from R. -2- RG/G1S/2/21 Contd. was quite capable of doing the work of operating well balanced shutters, and therefore the oil pressure relay system was an unnecessary complication. We… | ||
| Scan37 | The performance issues of 40/50 HP cars in America, proposing modifications to the induction and cooling systems. | ||
| View original record | To Cd. from R. Copy to OR. " HS. " DA " DY+ " R.R. of Am. (For the attention of OV.) X.3614 ORIGINAL RECEIVED R12/015/2/21. FEB 16 RECEIVED X.3749 RE 40/50 H.P. R.R. CARS IN AMERICA. The conclusions… | ||
| Scan38 | Vehicle defects and the standardization of parts for US-produced cars. | ||
| View original record | TO CJ. from R. -2- R12/G15/2/21 Contd. apt to be the fault with cast iron pistons where liquid petrol gets in the cylinders (so usual with bad petrol.) I think, therefore, we should concentrate our… | ||
| Scan39 | Standardisation of parts between U.S.A. and European models and issues with fuel quality. | ||
| View original record | To C.J. from R. -3- R12/615/2/21 Contd. starter motor. You will remember that I never objected to U.S.A. units if they would pass for perfection, but thought U.S.A. people should make a model… | ||
| Scan40 | From R. to C.J. regarding car performance and fuel mixtures, specifically a proposed mix of petrol and lamp oil. | ||
| View original record | To C.J. from R. -2- R12/G15/2/21 Contd. me, but I found it definitely less expensive, and ran my car more perfectly than anything else, i.e. starting good, no detonations, m.p.g. good, distribution… | ||
| Scan41 | Review and comparison of an American battery ignition system's components. | ||
| View original record | To HSy from R. Copy to CE. " " RFC. " " R.R. of America Inc. (For attention of OY.) [STAMPED: ORIGINAL] [STAMPED: RECEIVED 17 FEB 1921] X.4275. RE AMERICAN BATTERY IGNITION. GOVERNOR. [Handwritten:… | ||
| Scan42 | Continued memo discussing a defective distributor and comparing the cost of a Bosch ignition system with their own coil. | ||
| View original record | To H.S. from R. -2- Rll/G16/2/21 Contd. however, that it is the best quality of bakerlite. DISTRIBUTOR. Regarding the distributor, this appears to be distinctly defective, although simple to look at.… | ||
| Scan43 | Feasibility of in-house bakerlite moulding and comparing the reliability of Bosch versus Delco ignition systems. | ||
| View original record | To HS. from R. -3- R11/G16/2/21 Contd. that Mr. Clark should find out who controls the bakerlite patents in England, and see what it involves to put down a small plant to make our own mouldings. You… | ||
| Scan44 | Comparison of Bosch and Remy distributors, and a commentary on manufacturing capabilities versus American standards. | ||
| View original record | To HS. from R. -4- R11/G16/2/21 Contd. It will be observed that the Bosch distributor has many fits before one comes to the jump spark distributor, and it is impossible to see what the clearance is,… | ||
| Scan45 | Comparison and discussion of various spark plug types including Mercury, Champion, and Lodge. | ||
| View original record | To HS. from R. Copy to CJ. " " WGR. (Struck through) " " EP. (Struck through) " " HM. (Struck through) " " R.R. of America Inc. (Struck through) (For the attention of OY.) (Struck through) ORIGINAL… | ||
| Scan46 | Comparing U.S. electrical ignition equipment, specifically Remy and Bosch, with the company's own trembler apparatus. | ||
| View original record | To HS. from R. Copy to CJ. [struck through] " " WOR [struck through] ORIGINAL [stamp] 17 FEB 1921 [stamp] 16 [circled] R3/G16/2/21. X 4275. RE U.S.A. ELECTRICAL EQUIPMENT RECEIVED [stamp] X. 2814 X… | ||
| Scan47 | Front axle design, wheel choices, and vertical pivots for the Goshawk II schemes. | ||
| View original record | To DA. from R. copy to CJ. WCH. WPM. EPC. RECEIVED 17 FEB 1921 ORIGINAL. R8/G14/2/21. X.4263 RE "GOSHAWK II" FRONT AXLE. SCHEMES 752, 753, & 758. X.1761 With reference to the front axle, we cannot… | ||
| Scan48 | Potential alterations to the 40/50 HP induction system, specifically the carburettor and induction pipe. | ||
| View original record | To R.R. of America Inc. } from 17. FEB 1921 For attention of OY. } To HS. Copy to O.J. " OR. " PH. " Pp. " DA. " DY. " EFC. D RECEIVED ORIGINAL. R7/G16/2/21. X. 275 RE 40/50 H.P. INDUCTION SYSTEM. It… | ||
| Scan49 | Experimental arrangement with alternating plugs in two exhaust manifolds to keep a specific spot hot. | ||
| View original record | To OY. & HS. from R. -2- R7/G16/2/21 Contd. The value of this arrangement can only be ascertained by experiment. It seems, however, possible that it will be more effective than it would appear at… | ||
| Scan50 | Operational requirements for the Goshawk II brake hand lever design. | ||
| View original record | To DA. from E. Copy to CJ. " " SHOR " " BY. " " EFC. RECEIVED ORIGINAL E2/G16/2/21. RE "GOSHAWK II" BRAKE HAND LEVER. X. 4253 We send you herewith drawing LeC.1351 shewing the above. When this lever… | ||
| Scan51 | Drawing Lec.1349 showing additions to the 'Goshawk II' gearbox hand brake mechanism. | ||
| View original record | To H. from E. Copy to C. [Illegible strikethrough] EPC. X.4247 RECEIVED FO FEB 17 1921 ORIGINAL X.4247 RE "GOSHAWK II" GEAR BOX. We send you herewith drawing Lec.1349 shewing additions to "Goshawk II"… | ||
| Scan52 | Scheme to add a hot spot to the 40/50 HP induction pipe. | ||
| View original record | To Ph. from E. Copy to EPC. [Stamp: RECEIVED FEB 18 1921] [Stamp: ORIGINAL] E1/G17/2/21 X.4305 RE 40/50 H.P. HOT SPOT INDUCTION PIPE. We send you herewith drawing No. Lec.1350 showing a scheme for… | ||
| Scan53 | Request to send a blueprint of the 40/50 HP Hot Spot Induction Pipe to Rolls-Royce of America, as per Mr. Royce's instructions. | ||
| View original record | To. Div from E. Copy to [text struck through] * * E.P.C. X.4305 RE 40/50 H.P. HOT SPOT INDUCTION PIPE. E2/G19/2/21. ORIGINAL. In accordance with Mr. Royce's instructions, would you kindly send a… | ||
| Scan54 | Construction and potential modification of the 'Goshawk II' cylinder head joint washer. | ||
| View original record | To DA from E. Copy to Sv. [crossed out text] EPC. X.4225 RE "GOSHAWK II" CYLINDER HEAD JOINT WASHER. We send you herewith drawing No. LeC.1352 shewing the above. This joint washer or gasket should be… | ||
| Scan55 | The design of the 'Goshawk II' pedal gear and the associated drawing, Lec. /353. | ||
| View original record | To BA from E. Copy to GJ. [Stamped Initials]: WGC, HS., RV., KEC. COPY ORIGINAL. EA/G19/2/21. 9 X.4245 RE "GOSHAWK II" PEDAL GEAR. X426) We send you herewith drawing Lec. /353 shewing the above. This… | ||
| Scan56 | Proposal for modifications to the 40/50 HP chassis to improve performance with lower grade petrol. | ||
| View original record | To HS. from R. Copy to CJ. " " WOR. " " PN+ " " DA " " BY " " EP " " HM. " " R.R. of America Inc. (For the attention of OY.) ORIGINAL. R5/G22/2/21. S4 RECEIVED D 24 FEB 1921 X 985 X 4305 X 3456 RE… | ||
| Scan57 | Cross-current heating scheme for the induction pipe to vaporize liquid fuel. | ||
| View original record | To HS. from R. -2- R5/G22/2/21 Contd. of the trunk pipe were very hot the heat would be very little use beyond this point. In conclusion, it is highly desirable that we do not make the engine look… | ||
| Scan58 | The use of thermostats versus hand-operated shutters on chassis radiators. | ||
| View original record | To R.R. of America Inc. from R. (For the attention of CY) Copy to CC. " " MS. " " EFC. ORIGINAL RE CHASSIS - THERMOSTAT. X.3563 X.3495 X.3499 RECEIVED 3 With reference to BY10/P14/2/21, thermostats… | ||
| Scan59 | Scheme for an apparatus to indicate pressure in high-speed engines. | ||
| View original record | To EFC. from R. Copy to GS. ORIGINAL X.2981 RE APPARATUS FOR INDICATING PRESSURE IN HIGH SPEED ENGINES. RECEIVED 24 FEB 1921 I should be glad to know if any attempt has been made to prove the value of… | ||
| Scan60 | Proposal for a battery ignition unit for the 'Goshawk II' engine, seeking feedback on distributor designs. | ||
| View original record | To HS. from E. Copy to CL. GDR. EFC. ORIGINAL E1/G22/2/21.D 23 FEB 1921 (4) X.3485 RE "GOSHAWK II" BATTERY IGNITION. X. RECEIVED A simple battery ignition unit has been sketched for "Goshawk II". Mr.… | ||
| Scan61 | Selection, testing, and cost-effectiveness of various spark plug brands. | ||
| View original record | To BY. from R. Copy to HS. HH. PH. WP. R.R. of America Inc. (For the attention of O.Y.) ORIGINAL RRJA 616 RECEIVED 24 FEB 1921 X.4196 X.1812 RE SPARKING PLUGS. X.4295. X.3413 X.2635 With reference to… | ||
| Scan63 | Standardisation of carcase dimensions for dynamos and starter motors. | ||
| View original record | ORIGINAL. To CS. from R. Copy to EFC. X.3533 X.294 X.3534 X.3526 X 543 D 25 FEB 1921 R4/G23/X/21. RECEIVED RE ELECTRICAL EQUIPMENT. With reference to the electrical programme, we are arranging for the… | ||
| Scan64 | Material error for the Goshawk II clutch pressure plate. | ||
| View original record | To D.A. from R. Copy to C.J. " " WOR. " " HS. " " BY. " " EFC. X.4244 RE "GOSHAWK II" - CLUTCH. ORIGINAL D I R5/G23/2/21.1921 RECEIVED With reference to the clutch for "Goshawk II", we believe that an… | ||
| Scan65 | Design modification to the 'Goshawk II' engine's induction and exhaust pipes. | ||
| View original record | ORIGINAL E3/G24/2/21. (3) To D.A. from E. Copy to C.I. ~~O.P.~~ ~~HS.~~ ~~HV.~~ ~~LHG.~~ X4227 RE "GOSHAWK II" INDUCTION AND EXHAUST PIPES. We send you herewith drawing Lec.1356 shewing the above.… | ||
| Scan66 | The repositioning of the brake lever for the 'Goshawk II'. | ||
| View original record | To Mr. from E. Copy to [illegible text crossed out] EFC. X.4253 RE POSITION OF BRAKE LEVER - "GOSHAWK II". [STAMP: ORIGINAL] [STAMP: RECEIVED 25 FEB 1921] It is desired to move the brake lever handle… | ||
| Scan68 | Experimental bench investigation of a Westinghouse vibrator regulator and combined cut-out. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to PN. c. to Bn. c. to EP. c. to Da. c. to By. c. to EWT. for R. R. Inc. ORIGINAL. X.4031 - WESTINGHOUSE VIBRATOR REGULATOR (WITH COMBINED CUT-OUT) Further to our… | ||
| Scan69 | Analysis of the performance and design flaws of an electrical regulator and cut-out apparatus. | ||
| View original record | Contd. -2- EFCL/T2.2.21. propose giving figures for this operation as we do not think the cut-out portion is well designed. The chief objection we have to this is the large inertia of the moving arm… | ||
| Scan70 | Analysis of the compound windings on the regulator side of the cut-out and their effect on dynamo speed and current delivery. | ||
| View original record | Contd. -3- EFC1/T2.2.21. diagram of connections will show that the compound windings on the regulator side of the cut-out consist of (1) The usual compound winding carrying the main current delivered… | ||
| Scan71 | Analysis of voltage regulation and performance curves for a 12-volt dynamo and battery system. | ||
| View original record | Contd. -4- to the main field. These curves are given on the accompanying photostat sheet and correspond to the same setting, a setting in the correct neighbourhood for operating a 12 volt battery, but… | ||
| Scan72 | Continued analysis of regulator coil performance, current variation, and temperature compensation. | ||
| View original record | Contd. -5- EFCl/T2.2.21. from 3 amperes to 11 amperes within the regulating range (without temperature variation) with the regulator field current coil in circuit. On omitting this coil from the… | ||
| Scan73 | Outlining the principles for designing an external voltage regulator for a dynamo, considering speed and temperature. | ||
| View original record | Contd. X.H148 -6- EFC1/T2.2.21. In investigating any form of external regulator control, we set out with the idea of finding how the open circuit regulated voltage depends upon, firstly, speed and… | ||
| Scan75 | Comparing the efficiency of American Alemite grease guns to the standard Rotherham lubricators. | ||
| View original record | To R. from Hs. c. to CJ. c. to EM. c. to E. c. to DA. c. to EP. c. to EWT. for R.R.Inc. [Stamped] ORIGINAL [Handwritten on stamp] O.H. [Top right] 2 Hs2/LGS. 2. 21. [Handwritten] X.4337 [Typed and… | ||
| Scan76 | Results of experimental bench tests on various Bosch magnetos. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to PN. c. to EP. c. to Da. c. to By. c. to EWT. for R.R. Inc. ORIGINAL. X.427 - R. BOSCH Z.R.6 MAGNETO. X.2375 X.3916 - U.S.A. BOSCH Z.R.6 MAGNETO.… | ||
| Scan77 | Page detailing measurements and contact breaker timing for different types of magnetos. | ||
| View original record | Contd. -3- TEST ON BOSCH WET TEST (T.001) R.R. 2221.A (H8T 10-12-20) D. 3647 EFC4/T3.2.21. Dor E Magneto. Conductor pitch. Conductor width. Brush width. Overlap at break advanced. Overlap at break… | ||
| Scan78 | Comparison of specifications for various magneto machines, including Bosch and Watford models. | ||
| View original record | THOS.D (03-21-01 SHT H.2) (T 001) A822 .Я.Я Contd. -2- EFC4/T3.2.21. cover is removed, and yet permits of this being taken off by hand. We understand that except for the distributor, many of the parts… | ||
| Scan79 | Test report on magneto timing, endurance, and performance comparison of various models. | ||
| View original record | Contd. -4- EFC4/T3.2121 The breaks occurred as follows :- Advanced 94º, 99.5º, 79º after datum Retarded 130.5º, 137º, 115º after datum. The periods of make respectively are therefore 82.5º, 153º and… | ||
| Scan80 | Magneto testing, detailing distributor condition and electrical test results. | ||
| View original record | Contd. -5- TAE.10 03-81-01 SHT 14.10 CT 001 ASSE .N .H EFC4/T3.2.21. edges of the contact points were blackened. The high tension ring and insulating cheeks were covered with light grey dust, but the… | ||
| Scan81 | Test report page detailing breakdowns and utility tests on various magneto machines. | ||
| View original record | R.R. 235A (100 T) (S.H. 798. 10-12-20) G. 2947 -6- EFC4/T3.2.21. Contd. on the two Z.R.6 machines, but on this test the B.6 machine broke down across the brush holder of the high tension brush… | ||
| Scan82 | Comparison of maximum gap tests and sparking characteristics for various magnetos. | ||
| View original record | Contd. -7- EFC4/T3.2.21. The maximum gaps (mm) obtained on the two Z.R.6 magnetos and a Watford E.6 were as follows :- (a) (b) (c) (d) Safety gap. R.Bosch. 8.5 8.3 8.1 5.0 9.9 U.S.A. Bosch ZR6.7.6 7.2… | ||
| Scan83 | Comparison of low-speed sparking performance for various magnetos. | ||
| View original record | Contd. -8- EFC4/T3.2121. Magneto. Lowest speeds for 5.5 mm. Adv. Cent. Retd. Watford E.6 95 175 210 " E.6 150 220 320 " E.O.6 160 140 136 R. Bosch Z.R.6. 260 190 250 U.S.A. Bosch ZR6 125 220 320 " "… | ||
| Scan84 | The high-speed sparking characteristics of R.Bosch and U.S.A. Bosch Z.R.6 magnetos. | ||
| View original record | Contd. -9- EPC4/T3.2.21. advanced position, as above. This will not penalize on low speed retarded running a magneto which is given a large range by the makers. Results for such a comparison taken on… | ||
| Scan85 | Comparison of electrical characteristics, including resistance and current, between Bosch and Watford magnetos. | ||
| View original record | Contd. -10- EFC4/T3.2.21. definitely better than that of any of the Watfords. (18) & (19) Primary and Secondary Resistances. R. Bosch Z.R.6. .73 ohm and 2849 ohms at 15°C. U.S.A. Bosch Z.R.6. .93 ohm… | ||
| Scan86 | Revised schedule of tests for the new E.O.6 Watfords which are replacing older models. | ||
| View original record | R.R. 235B (100 T) (S.H. 89, 22-7-20) G 2769 Contd. -11- EFC4/T3.2.21. revised schedule of tests, the new E.O.6 Watfords taking the placeof the old, which will be returned to the makers. EFC. | ||
| Scan88 | Failure of 'Exide' battery cells due to poor quality separators and the need for a more reliable alternative. | ||
| View original record | To EFC. from R. Copy to CJ. " " HS. " " R.R. of America Inc. (for attention of OY.) ORIGINAL X.604 X.664 X.3263 RE "EXIDE" CELLS. X.1198 RECEIVED One of the cells on 1 EX. here became short-circuited… | ||
| Scan89 | Short-circuiting issues in Exide batteries and ongoing tests with alternative battery suppliers. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to PN. c. to Bn. c. to Da. c. to EP. c. to By. c. to EWT. for R.R.Inc. EFC4/T7.2.21. ORIGINAL. [Handwritten] X.60Y [crossed out] X.949 X.664 - BATTERIES -… | ||
| Scan90 | Standardisation and internal components of various types of batteries. | ||
| View original record | R.R. 285A (100 T) (S.H. 798 10-12-20) G. 2947 -2- EFC4/T7.2.21. Contd. and efficiency and it is considered that it may be desirable to standardise these as a second source of supply, it having been… | ||
| Scan91 | Directive to abandon experimental work on vibrator regulators and focus on a simpler dynamo design. | ||
| View original record | To EFC. } from R. Copy to OG. ORIGINAL RECEIVED X.4748 RE VIBRATOR REGULATOR. X.294 X.3533 As it will now be necessary to curtail so much experimental work in your department, I think it will be as… | ||
| Scan92 | Instruction to abandon experimental work on a vibratory regulator and focus on a simpler third-brush dynamo design. | ||
| View original record | Handwritten Annotations: Top Left: R. S.IS/EC/OTH Top Right: from H, COPY TO EC. { BY H Main Annotations: Reduction in Exp. work Abandon all work on Vibrating Mott TO EFC { dynamo control & stop… | ||
| Scan93 | Preliminary report on the B.T.H. type F.M.6 magneto, with comparisons to other magnetos. | ||
| View original record | To R. from EFC. c. to CJ. PN: | ||
| Scan94 | Comparison of the construction and materials of R. Bosch, U.S.A. Bosch, and Watford magnetos. | ||
| View original record | R.R. 285A (100 T) (S.H. 798 10-12-20) G. 2947 Contd. 2- EFC2/T10.2.21. R. Bosch Z.R.6. X424 Both pole shoes are solid and the armature core is laminated. The distributor pinion wheel on the armature… | ||
| Scan95 | Preliminary report on the B.T.H. Magneto F.M.6. | ||
| View original record | R.R. 235A (100 T) (S.H. 798, 10-12-20) G. 2947 EFC. COPY. 91286. P.A.65. PRELIMINARY REPORT ON B.T.H. MAGNETO F.M.6. This is a very small machine, compared with the others, with a weight of 10.25 lbs.… | ||
| Scan96 | Continued description of a jump spark distributor's components, including its cover, distribution gear, and lubrication system. | ||
| View original record | -2- Contd. R.R. 235A (100 T) (S.H. 798, 10-12-20) G. 2947 A jump spark distributor is used, the cover carrying small rectangular points instead of segments. The interior of the cover is ventilated by… | ||
| Scan97 | Failure of Champion and Mercury ignition plugs during testing and proposing design modifications. | ||
| View original record | To HS. from R. Copy to CJ. [Strikethrough] " " ERO. [Strikethrough] ORIGINAL [Stamped] R6/G12/4/21. RE IGNITION PLUGS. Handwritten: X1812, X4196, X4095, X0635 The Champion plug you gave me to test in… | ||
| Scan98 | The combined operation of pre-war and post-war Bosch dynamo and regulator systems. | ||
| View original record | To R. & E. from EFC. c. CJ. & PN. c. Bn. & By. c. Da. & EP. c. EWl. for R.R. Inc. ORIGINAL EFC2/T14.2.21. X.3796 - PRE-WAR BOSCH REGULATOR. X.796 Further to our EFC1/T21.1.21, we report below on the… | ||
| Scan99 | The testing of a regulator and switchbox, focusing on the effects of vibration and open circuit voltage. | ||
| View original record | Contd. -2- EFC2/T14.2.21. this ring in its uppermost position, causing the field circuit of the dynamo to be shunted by the series coil in the regulator. Thus, at high speeds the armature should be… | ||
| Scan100 | Testing and adjusting the current regulator for a battery charging system under various conditions. | ||
| View original record | Contd. -3- EFC2/T14.2.21. fully charged battery (from which no discharge current was being taken), through low resistance leads, we found that in order to get the regulator into a condition at which a… | ||
| Scan101 | Test report on dynamo and regulator performance, detailing current output and operational issues. | ||
| View original record | -4- Contd. | Constant curr. taken from battery terminals. | Curr. delvd. by dynamo & regulator when cold. | Final and steady curr. delvd. by dynamo & regulator. | Final excess amps. available to… | ||
| Scan102 | The combined operation of a dynamo and cut-out, with test results under cold and hot conditions. | ||
| View original record | Contd. -5- EFC2/T14.2.21. The behaviour of this regulator in other respects seemed to be very good, but it appears that this phenomenon would comdemn this particular feature. We have also investigated… | ||
| Scan103 | Graph showing the open circuit volt-speed characteristic of a Bosch Dynamo and Carbon Granule Regulator. | ||
| View original record | OPEN CIRCUIT VOLT-SPEED CHARACTERISTIC OF BOSCH DYNAMO AND CARBON GRANULE REGULATOR FIELD AMPERES O.C. VOLTS DYNAMO R.P.M. Regulation Begins O.C. Volts Regulated Field Current E.7 15/12/26 | ||
| Scan104 | Ignition timing requirements for a small engine, including lead and retard angles. | ||
| View original record | To HS. from R. Copy to EFC. ORIGINAL. (5) R9/G15/2/21. X699. RE IGNITION TIMING. X 928 W.W LIGHTING SET X.3149. With the magneto, we find the little engine here which runs at 750 revs. with normal… | ||
| Scan105 | Rejection of the Hampden Pump in favour of an in-house designed mechanical air pump. | ||
| View original record | W/S. To EH. from Hs. X.350s. HAMPDEN PUMP. X.269 We enclose herewith correspondence in connection with the above Pump. This pump is of no use to us. We are testing at the present time in the… | ||