Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box WestWitteringFiles\F\May1921\        Box Selection

IdentifierEntry
Scan0 Mr. Royce's suggestions for strengthening the 40/50 M.P. Chassis Valve Tappet Lever.
View original record To DY. from E. Copy to C.J. " " HS. " " EF. ORIGINAL X3074 RE 40/50 M.P. CHASSIS VALVE TAPPET LEVER. Referring to the broken model sent with your memo BY12/P29/4/21, Mr. Royce makes the following four…

Scan1 Position of the rear cross member and spare wheel on the Goshawk II.
View original record ORIGINAL RECEIVED TO EY. from E. Copy to EY. [Illegible stamp] EPC. X4266 X4260 X4083 RE "GOSHAWK II" RE NO.2 FROM REAR CROSS MEMBER AND SPARE WHEEL POSITION. On drawings Lec.1369, 1376, and 1378 the…

Scan2 Requesting Pognon plugs for testing and to notify the company of an error in their advertisement.
View original record WW LIGHTING SET ORIGINAL To HS. from E. E4/G3/5/21. X/353 RE POGNON PLUGS. We send you herewith an advertisement regarding Pognon Plugs. Mr. Royce would like you to get one or two of these plugs for…

Scan3 Advertisement for Pognon sparking plugs, with a handwritten note, and a for sale listing for a 1913 Bianchi car.
View original record THE AUTOCAR. ADVERTISEMENTS.—SUPPLEMENT. MARCH 5TH, 1921. lxv. THE LIFE OF A PLUG IS IN THE PORCELAIN ! POGNON The Aristocrat of Sparking Plugs Pognon Plugs are insulated with finest French Porcelain,…

Scan4 Advertisement supplement page from 'The Autocar' magazine for car dealers and automotive accessories.
View original record lxvi. THE AUTOCAR. ADVERTISEMENTS.—SUPPLEMENT. MARCH 5TH, 1921. [W. H. HARRISON (BURNLEY) LTD. ADVERTISEMENT] THIS is the House for SATISFACTION BECAUSE we give UNBIASED advice; BECAUSE we offer only…

Scan5 The 40/50 HP breather, asking if a .625' copper pipe is sufficient for engine ventilation.
View original record To HS. from DA. ORIGINAL DA2/G3/5/21. 3. X3908 RE 40/50 H.P. BREATHER. In referring to the apparatus for preventing fumes getting into the body the other day, I should have asked you to let us know,…

Scan6 From DA to BJ regarding accommodation for the Third Line 15 HP model and the Goshawk II project.
View original record SWALLOW ? To BJ. from DA. DA7/G3/5/21. RE THIRD LINE MODEL - 15 H.P. In reply to your BJ2/H30/4/21, we had gathered that the accommodation you were expecting on the third line model was as indicated…

Scan7 Letter discussing the pros and cons of manufacturing versus purchasing bakelite insulation mouldings.
View original record To R.R. of America Inc. from R. (For the attention of...) Copy to CG. EFC. WD. ORIGINAL R8/G4/5/21. (2) X 3513 RE BAKELITE INSULATION. We thank you for your information (OY3/G9/4/21) regarding the…

Scan8 Continued letter regarding the production of Bakelite insulating parts and the difficulty in finding a manufacturer in England.
View original record To R.R. of America Inc. from R. (2) RE BAKELITE. R8/G4/5/21. Contd. Companies. In this case we should be making much more extensive use of the moulds, and therefore effecting a real economy. In…

Scan9 Use and modification of tungsten contacts on a low tension make and break ignition system.
View original record To EFC. from E. Copy to CJ. " " HS. " " DA. " " BY. ORIGINAL E1/G7/5/21. X.1819 X. 2894 RE TUNGSTEN CONTACTS ON LOW TENSION MAKE AND BREAK. Referring to the use of tungsten on the low tension contact…

Scan10 Production and improvement of Dunlop wire wheels for the 'Goshawk II' project.
View original record To HY. from R. Copy to Col. W HS. ORIGINAL [stamp] R1/G9/5/21. Y3725 RE "GOSHAWK II" - DUNLOP WIRE WHEELS. With reference to Dunlop wheels for "Goshawk II", I think we must ask the Sales [stamp:…

Scan11 Design specifications for the 'Goshawk II' dynamo and starter motor, ensuring they follow specific drawings.
View original record To EFC. from R. Copy to C.I. " " DA. " " BY. " " HS. ORIGINAL X.3533 X.3534 RE "GOSHAWK II" DYNAMO AND STARTER MOTOR. With reference to the dynamo for "Goshawk II", this will have to have bearings and…

Scan12 Suggesting an experimental part, the starter motor push button switch, be made from Bakelite instead of ebonite.
View original record To DY. } from R. WOR. Copy to CO. EFC. ORIGINAL R5/G10/5/21. (3 X 3513 RE PARTS IN BAKELITE. X.2641 I can see on the Push Button Switch for the Starter Motor (Lec.381) a piece of moulded ebonite which…

Scan13 Agreeing with a suggestion to use hardened washers to reduce wear on front springs and shackles.
View original record To ~~BY.~~ from R. Copy to ~~GJ~~ # HS. R11/G10/5/21. 2 [STAMP: ORIGINAL] [STAMP: RECEIVED] X2628. X.483. RE FRONT SPRINGS. I quite agree with your suggestion of putting in hardened washers to see if…

Scan14 Effect of humidity in England on insulating materials compared to the U.S.A. or Europe.
View original record To Cr. from R. Copy to HS. H B Mr Brock ORIGINAL 2 R6/G10/5/21. x1109 RE INSULATING MATERIALS. x753 Thank you very much indeed for the information you have collected with reference to insulating…

Scan15 Proposed new position of the spare wheel on the 'Goshawk II' car, pending a decision from the Sales Department.
View original record To D.R. from E. Copy to C.S. HS HV ORIGINAL RECEIVED 18 MAY 1921 E2/G11/5/21. XL4085 RE "GOSHAWK II" - POSITION OF SPARE WHEEL. We send you herewith drawing No.Lec.1390 shewing the new proposed…

Scan16 Correspondence regarding drawing No. Lec.1389 for the 'Goshawk II' open four-seater body.
View original record To DA. from E. Copy to Ed. " " OR. (crossed out) " " HS. (crossed out) " " BY. (crossed out) [Stamp: ORIGINAL.] E1/G11/5/21. [Stamp: RECEIVED MAY 13] X3730 RE "GOSHAWK II" - OPEN FOUR-SEATER BODY. We…

Scan17 Request to create a model of a small ball joint for 'Goshawk II' controls.
View original record To D.A. from E. Copy to Co. " " WOH. " " HS. " " RV. " " F.O. X4239 ORIGINAL E3/G11/5/21. RE "GOSHAWK II" SMALL BALL JOINT FOR CONTROLS. We send you herewith drawing Lec.1387 showing the above. Would…

Scan18 The revised position of the spare wheel carrier.
View original record To DA. from E. Copy to CS. " " MON. " " HS. " " BY. " " B.O. ORIGINAL. RE: SPARE WHEEL CARRIER. E1/G12/5/21. RECEIVED 18 MAY 1921 D.S. X4085 Would you kindly note that we are now notified that the…

Scan19 Sending drawings for the Goshawk II battery ignition gear's advance and retard governor.
View original record ORIGINAL To D.B. from E. Copy to C.J. " WOH. " HS. " E.O. X3485 RE "GOSHAWK II" BATTERY IGNITION GEAR. We send you herewith drawings Nos. LeC.1393 and 1394 giving particulars of the advance and retard…

Scan20 Enclosing drawing LeC. 1391 for the Goshawk II engine's front suspension and radiator connections.
View original record To DA. from E. Copy to CJ. " " FOR. " " HS. " " SY. " " E.C.O. ORIGINAL E7/G13/5/21. RE "GOSHAWK II" - FRONT SUSPENSION OF ENGINE AND TOP WATER CONNECTIONS TO RADIATOR. We hand you herewith drawing…

Scan21 New drawing for 'Goshawk II' clutch and brake pedals, superseding previous versions.
View original record To BA. from E. Copy to SS. - WOH. - HS. - BY - E.O. ORIGINAL RECEIVED 18 MAY 1921 X4267 "GOSHAWK II" CLUTCH AND BRAKE PEDALS. We send you herewith drawing No. LeC.1392 shewing the method by which Mr.…

Scan22 'Goshawk II' connecting rod and piston, detailing instructions for creating wooden models of the combustion space.
View original record To DA. from E. Copy to OL. " " HS. " " EV. " " LO. ORIGINAL E4/G13/5/21. X4223 X4224 RE "GOSHAWK II" - CONNECTING ROD AND PISTON. We send you herewith drawing No. LeC.1395 shewing the above. A model…

Scan23 Engine component design and manufacturing choices for the 'Buzzard' project, page 2.
View original record To DA. from E. -2- E4/G13/5/21 Contd. as described above, and as shewn for the "Buzzard" on LeC.1276, for Mr. Royce's inspection. Needless to say the models should be made as quickly as possible. The…

Scan24 Drawing for the minimum dimensions of a connecting rod stem.
View original record To DA. from E. -3- EA/G13/5/21 Contd. Works would supply a drawing shewing the minimum dimensions they think could satisfactorily be worked to on the stem of the connecting rod by the use of finishing…

Scan25 The impracticality of a proposed design change for the Goshawk II crankshaft oil caps.
View original record To ~~EH~~ from E. Copy to ~~CJ~~. " " " HS. " " " ~~PY~~ " " " E.C. ORIGINAL E8/G13/5/21. X4221 RE "GOSHAWK II" - CRANKSHAFT OIL CAPS (Stamp: RECEIVED 21 NOV 1935) You will no doubt recollect that it…

Scan26 Dimensions of the 'Swallow' frame and the expectation of a drawing to be fixed up after Whitsuntide.
View original record SWALLOW 3rd LINE MODEL DA1/G13/5/21. 15hp? To BJ. from DA. RE "SWALLOW". With reference to your BJ8/H4/5/21, Mr. Royce is considering the dimensions of the frame, and we expect that a drawing will be…

Scan27 From E. to H.S. conveying Mr. Royce's instruction not to test expansion plugs on the Goshawk II engine.
View original record To HS. from E. Copy to OJ. " " WOR. " " DA. " " BY. " " E.O. ORIGINAL RE EXPANSION PLUGS. Referring to the expansion plugs, samples and booklet concerning which we sent you with our memo E1/G17/6/20,…

Scan28 The riveting method for a 'Goshawk II' small ball joint for controls.
View original record To BA. from E. Copy to RY (struck through) " " HS. " " E.O. ORIGINAL (stamp) E F C 24 XII 1921 RECEIVED (stamp) X4239. RE "GOSHAWK II" SMALL BALL JOINT FOR CONTROLS. LEC.1387. With reference to the…

Scan29 Request to test Monel metal sheets for radiators and to investigate modifying the standard nickel alloy as a cheaper alternative.
View original record To HS. from R. Copy to CJ. " " WOR. " " BY " " WD. RE MONEL METAL. X4306 On my request the sheets of the above metal have been sent with a view of fitting two chassis with radiators and plating with…

Scan30 Gasket for the Goshawk II carburettor joint.
View original record To D.R. from E. Copy to DY. " " HS. " " H.O. ORIGINAL E F C RECEIVED MAY 24 1921 E2/G23/5/21. K4228. RE "GOSHAWK II" CARBURETTOR - LEC.1386. Referring to the joint between the carburettor flange and…

Scan31 Five design points from Mr. Royce for the 'Goshawk II' rear engine support.
View original record [Stamp] ORIGINAL. [Handwritten] 2 [Handwritten] BH [Stamp] RECEIVED 1 MAY 1932 To BY. from E. [crossed out] Copy to C.T. [crossed out] W.O.K. [crossed out] DA. [crossed out] # # E.O. [Handwritten]…

Scan32 Design modifications for the 'Goshawk II' piston and connecting rod.
View original record To D.A. from E. Copy to Gd. " WGR. " HS. " HY. X4224 " E.O. X4223 RE "GOSHAWK II" PISTON AND CONNECTING ROD. Since it is possible to obtain the dimensions we require on the connecting rod without…

Scan33 Listing C.A.V.-Willard battery numbers selected by Mr. Royce for the Goshawk and 40/50 HP cars.
View original record To E.S. from E. Copy to Messrs. " [illegible] " DAV. " HS. " HY. ORIGINAL E F C 2 JUN 1921 RECEIVED E2/G31/5/21. RE BATTERIES FOR "GOSHAWK II" AND 40/50 H.P. C.A.V.-WILLARD TYPE. In accordance with…

Scan34 Request for particulars of suitable small carburettors for a lighting engine to replace an unsatisfactory floatless model.
View original record To HS. from E. ORIGINAL 2 E3/G31/5/21. X2429 X2768 RE CARBURETTOR FOR LIGHTING ENGINE. In connection with the lighting engine at West Wittering, Mr. Royce would be glad if you could send him…

Scan35 Modification to the Woodmilne tyre pump connection proposed by Mr. Royce.
View original record To DA. From E. Copy to CJ. " " WOR. " " BY. " " HS. " " E.C. ORIGINAL. E5/G31/5/21. X1405 RE WOODMILNE TYRE PUMP CONNECTION. RECEIVED We send you herewith drawing No. C.1397 shewing a modified tyre…

Scan36 Issue with a washer spreading and a union nut being an unnecessarily tight fit.
View original record To DA. From E. -2- E5/G31/5/21. washer had spread and the union nut was an unnecessarily tight fit on the nipple on the diameter marked "A" on the drawing. It was also thought that the collars of the…

Scan37 Visit to Messrs. Lucas in Birmingham regarding Bakelite moulding and junction box fuse clips.
View original record R.R. 235A (100 T) To Ro-E from EFC. c. CJ. c. Wor. c. By. c. Da. c. EP. c. Wd. ORIGINAL RE VISIT TO MESSRS. LUCAS, BIRMINGHAM. Accompanied by Mr. Brock, I visited Messrs. Lucas on Saturday April 23rd.…

Scan38 Discussions with Messrs. Lucas regarding fuse holders and a lengthened E.575 Dynamo.
View original record R.R. 285A (100 T) (S.H. 798, 10-12-20) G. 2947 -2- EFC2/T4.5.21: Contd. as regards making this standard. Messrs. Lucas did not take kindly to the R.R. fuse holder, but proposed a holder with a double…

Scan39 Dynamo and motor suitability for a small car, referencing Lucas products.
View original record R.R. 235A (100 T) (S.H. 798. 16-12-20) G. 2947 Contd. -3- EFC2/T4.5.21. Their objection to it was the variability in operation which may result in slight change in conditions, e.g. brush contact…

Scan40 Experimental bench tests for a U.S.A. Bosch Magneto type D.U.Z.6.
View original record R. R. 235A (100 T) (S. H. 798, 10-12-20) G. 2947 To R & E. from EFC. c. CJ & PN. c. Da. & EP. c. Ey. & En. c. EMI. for R.R.Inc. ORIGINAL X4285 U.S.A. BOSCH MAGNETO TYPE D.U.Z.6. Report on Experimental…

Scan41 The design and testing of a distributor, including measurements and endurance test results.
View original record R.R. 285A (100 T) (S.H. 79S. 10-12-20) G. 2947 -2- EFC4/T4.5.21. Contd. (2) For remarks re mechanical and electrical design see preliminary report. (3) The radial air gap was unobtainable. (4) H.T.…

Scan42 Magneto test report detailing open/short circuit, utility, and advance/retard range results.
View original record R.R. 235A (100 T) (S.H. 798, 10-12-20) G. £947 Contd. -3- EFC4/T4.5.21. fairly heavy tracking of the contact breaker earthing brush. The contact points were slightly blackened round the edge. After…

Scan43 Test report on sparking characteristics, electrical resistance, and noise levels of an ignition component, compared to the Z.R.6 model.
View original record R.R. 235A (100 T) (S.H. 798, 10-12-20) G. 3947 Contd. -4- EFC4/T4.5.21. (15) High Speed Sparking Characteristics. Regular sparking took place at all high speeds up to 3500 on 7.2 mm. gaps, for all…

Scan44 Issues with obtaining satisfactory Bleriot Phi cutouts and problems with their assembly.
View original record To R & E. from EFC. c. CJ. c. Bn. c. By. c. Wd. c. EP. c. Da. c. Wor. c. Hm. c. Hy. EFC1/T10.5.21. X.4215 - BLERIOT PHI CUTOUTS. We have not been successful in obtaining satisfactory Bleriot Phi…

Scan45 Discussion with a supplier regarding the specification and operation of a cut-out for an R.R. car.
View original record Contd. -2- EFC1/T10.5.21. premises on Saturday morning in order to discuss the matter with one of their technical men. He was surprised that we had taken such a detailed interest in the exact…

Scan46 Performance loss on a Watford E.6 magneto caused by its securing strap short-circuiting the magnetic flux.
View original record To R & E. from EFC. c. CJ c. EWH. for R.R.Inc. c. Ry. c. Da. c. EP. ORIGINAL EFC4/T10.5.21. X.3630 - MAGNETO WITH SLOPING BASE. Mr. Olley has suggested that the strap used to secure the magneto on the…

Scan47 Evaluation of pressure-fed grease caps and lubricators, comparing various samples to the 'Alemite' system.
View original record To R. From Hs. c. to CJ. c. to BN. c. to K. c. to Da. c. to EY. c. to EWT. for R.R.Inc. ORIGINAL X.4337 X.3898 PRESSURE FED GREASE CAPS AND LUBRICATORS Hs2/LG11.5.21. We have been endeavouring to…

Scan48 Pressure-fed grease lubrication systems, comparing Alemite products and potential suppliers.
View original record contd. -2- Hs2/LG11.5.21. ******************* We shall have to get the price confirmed, but up to the present, the price we have paid for the grease gun and 36 connections has been three dollars. To…

Scan49 Page discussing the development of an 'Alemite' lubrication system for an experimental car.
View original record contd. -3- London is perhaps the best sample we have received, but this is still in a stage of development and we could not at present recommend it for standardisation. We are fitting up an…

Scan50 Test results and observations on a C.A.V. cutout device under cold and hot conditions.
View original record To R & E. from EFC. c. to CJ. & FN. c. to Da. & KP. c. to En. & By. c. EWT. for R.R.Inc. X.1610 - C.A.V. CUTOUT. With reference to the new sample C.A.V. cutout, recently sent down to you for your…

Scan51 Technical note on ensuring operating voltage remains higher than the E.M.F. of a battery.
View original record Contd. -2- EFC4/T18.5.21. to ensure that such operating voltage shall always be higher than the E.M.F. of the battery, and that even with this adjustment, the reverse series current to cause…

Scan52 Responding to a query about substituting Bakelite sheets for Micanite.
View original record To R. from EFC c. to CJ. X.3513 - CAN BAKELITE IN THE FORM OF SHEETS BE USED IN PLACE OF MICANITE ? In further answer to the above query, please find attached copy of my assistant's report in which he…

Scan53 Use of Bakelite as a replacement for Mica and Micanite in condensers and commutators.
View original record R.R. 285A (100 T) (S H. 798, 10-12-20) G. 2947 EFC. COPY. 18th May, 1921. A.A.61. X.1109. X.3513. BAKELITE IN PLACE OF MICA & MICANITE. X.2495. The chief uses of mica and micanite on the R.R. car are…

Scan54 Investigation into issues with thrust washers and bearings on Gleason bevel gears, detailing tests and proposed solutions.
View original record To R. From Hs. c. to CJ. c. to BN. c. to R. c. to Da. c. to BY. c. to EWF. for R.R. Inc. ORIGINAL THRUST GLEASON BEVEL GEARS. X4150 We have got to anticipate that we shall have trouble with cars on…

Scan55 Dynamometer testing of a modified bevel pinion and thrust bearing arrangement.
View original record R.R. 236A (50 T. S.H. 986, 19-2-11) G. 3008 Contd. -2- Mel/LG24.5.21. ************** used on the bevel pinion is similar to the deep groove type. We have taken a standard axle and removed the brass…

Scan56 Test report detailing the seizure of a reverse pinion and subsequent damage to a gearbox on a 7.CA car.
View original record contd. -3- Rsl/L824.5.21. ************ pinion. The tests were carried out on 7.CA Car which has been running for nine years. After we had run for 30 minutes full power on the reverse, the reverse…

Scan57 Confirmation of a telegram telephoned to Chichester about a delay in standardizing a flexible ignition part.
View original record X.4054. CONFIRMATION OF TELEGRAM TELEPHONED TO CHICHESTER. 25th May, 1921. ROY CAR DERBY. X.4054. HIVES WHY DELAY STANDARDISING FLEXIBLE FROM THE MOVING PART OF THE IGNITION TOWER TO THE CRANKCHAMBER.…

Scan58 Redesign of a flexible connection from the condenser to the crankchamber due to failures and sparking in the previous design.
View original record X4054 To R. from Hg. c. to CJ. c. to E. c. to Ds. COPY Hs2/LG27.5.21. X4054 FLEXIBLE CONNECTION FROM CONDENSER TO CRANKCHAMBER With reference to your telegram re, the above. The reason this has not…

Scan59 Performance of Smith, Lucas, and C.A.V. electrical cutouts.
View original record To R. & E. from EFC. c. CJ. & FN. c. En. & Ry. c. Da. & EW. c. EWT. for R.R.Inc. ORIGINAL EFC6/T31.5.21. X.3771 @ X.1815. SMITH (AND OTHER) ELECTRICAL CUTOUTS. Further to our EFC2/T19.4.21 and…

Scan60 Comparison of the operational performance of various electrical cutouts under different temperature conditions.
View original record Contd. -2- EPC6/T31.5.21. really a little better. On comparison of the operation of the cold and hot conditions of the two cutouts wound with Eureka and copper with the one wound with copper only,…

Scan61 Test log sheet recording the operational data of various electrical cutouts under different conditions.
View original record OPERATION OF CUTOUTS. Table with columns: Maker, Cutout Type or Number, Condition, Battery disconnected (Operated at Volts, amps), Battery connected (Operated at Volts, Shunt amps), Reverse series…

Scan62 Modifications and comparing the performance of a Smith Dynamo Type 2D against previous models and specifications.
View original record To R. & E. from EFC. c. CJ. & PN. c. Bn. & By. c. Da. & EP. c. EWT. for R.R.Inc. EFC3/T31.5.21. X.295 - SMITH DYNAMO TYPE 2D WITH R.R. MODIFICATIONS. Further to our EFC6/T13.4.21 and EFC1/T5.5.21, we…

Scan63 The heating test of a dynamo from Messrs. Smith and its potential standardization for the 40/50 chassis.
View original record Contd. -2- EFC3/T31.5.21. every respect this machine comes so near to our requirements that we can say that it is the first machine so far that satisfies us. The heating test of this machine has been…

Scan64 Graph showing hot condition output curves for various dynamos against speed.
View original record Y-Axis: AMPERE OUTPUT Numbers on Y-Axis: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 X-Axis: DYNAMO SPEED (R.P.M.) Numbers on X-Axis: 0, 500, 1000, 1500, 2000, 2500, 3000, 3500 Title: X 295. SMITH 2D(7)(RR2)…

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