Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Correspondence regarding the design of the Goshawk II bonnet, top radiator support, and dashboard, mentioning drawings and undecided elements. | ||
| View original record | To DA. from E. Copy to CG. " " WOR. " " HS. " " RY. " " E.O. X4240 X4241 RE "GOSHAWK II" BONNET AND TOP RADIATOR SUPPORT. We send you herewith drawings Nos. LeC.1400/1 shewing the above. Would you… | ||
| Scan1 | The sourcing of high conductivity metal rods for switch contacts and connections. | ||
| View original record | To EFC. from R. Copy to CJ. " " HL. (struck through) " " WD. (struck through) ORIGINAL (stamp) RECEIVED (circular stamp with clock face) X. 1699 RE HIGH CONDUCTING STUDS AND BOLTS. RECEIVED (stamp)… | ||
| Scan2 | Design of the Goshawk II battery ignition, suggesting an ebonite band to prevent carbon tracking on bakelite mouldings. | ||
| View original record | To DA from E. Copy to CC. " " WOR. " " HS. " " BY. " " T.C. ORIGINAL X3485 RE "GOSHAWK II" BATTERY IGNITION. We send you herewith drawing No. LeC.1398 shewing the battery ignition gear. There are five… | ||
| Scan3 | Instructions for modifications to a governor tower and rotor assembly for an ignition system. | ||
| View original record | To DA. from E. -2- E1/G4/5/21 Contd. be instructed in both materials. This drawing slightly modifies the top of the governor tower shewn on previous LeCs. Referring to the rotor, it is intended that… | ||
| Scan4 | Confirming the decision to suspend all work on the 3rd model (15 HP) Swallow. | ||
| View original record | R R. 235B (100 T) (S.H. 798, 10-12-20) G. 2948 Manufacturing programme. 3rd MODEL 15hp SWALLOW WORK SUSPENDED 6-6-21 R. c.to Wor. D/He/DL.6.6.21. I thought I would remind you that at the Board Meeting… | ||
| Scan5 | Telegram instructing to standardise dynamo and motor carcase diameters and to cease work on all other sizes. | ||
| View original record | ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received 4-38. Date 7-6-21. To Royce Derby. By M.C. from Chichester H-G. [Stamp: ORIGINAL] [Stamp: RECEIVED 1921] Clarke we have decided that… | ||
| Scan7 | U.S.A. customer complaints, attributing issues to low-grade fuel and proposing vehicle modifications. | ||
| View original record | To R.R. of America Inc. from R. (For the attention of Mr. N. Helman.) Copy to Co. CY: WOR: HS: DA: RY: FX: FP ORIGINAL RECEIVED E F O JUN 14 1921 X3719 RE U.S.A. COMPLAINTS. We have agreed and… | ||
| Scan8 | Engine performance issues with low-grade fuel, low temperatures in the U.S.A., and potential carburettor and induction system modifications. | ||
| View original record | To R.R. of America Inc. from R. -2- R10/G8/6/21 Contd. with low grade fuel, either of our make or any other, will give satisfaction unless the cooling water, and the air under the bonnet is maintained… | ||
| Scan9 | Engine starting issues, fuel quality, carburettor design, and the use of a choker. | ||
| View original record | To R.R. of America Inc. From R. -3- R10/G8/6/21 Contd. arranged by Springfield was due to the changing of shape and not due to the heat, and was quite inconsistent[ly] heated or unheated. It has for… | ||
| Scan10 | Engine design modifications, starter motors, and transmission knocking caused by leaf springs. | ||
| View original record | To R.R. of America Inc. from R. -4- R10/G8/6/21 Contd. mentioned above, the trouble of the difficulty of the engine should cease. Such an arrangement can be applied to existing cars and Mr. Platford… | ||
| Scan11 | Remedies for transmission knock and uneven engine firing, including ignition systems and fuel quality. | ||
| View original record | To R.R. of America Inc. from R. -5- R10/G8/6/21 Contd. then I suggest that the next thing to do is to fit shock dampers or Gabriel snubbers, either of which will tend to steady the body, and so make… | ||
| Scan12 | Letter discussing issues with Bijur and Lucas dynamos and proposing future chassis be sent to America without them. | ||
| View original record | To R.R. of America Inc. From R. -6- R10/68/6/21 Contd. Bijur dynamo with vibrator arrangement, which undoubtedly will keep the battery up better. It should be understood that in many cases batteries… | ||
| Scan13 | Issues with leaky Exide battery cells, unreliable Lucas cutouts, and engine over-oiling problems. | ||
| View original record | To R.R. of America Inc. From R. -7- R10/GB/8/6/21 Contd. and that you should provide cutout in conjunction with the dynamo. Many Exide cells have become internally leaky and lose their charge. This… | ||
| Scan14 | Technical memo discussing pistons, clutch over-oiling, and alterations to the induction system. | ||
| View original record | To R.R. of America Inc. -8- R10/G8/6/21 Contd. From R. low grade fuel overoiling should cease. PISTONS. As regards the tightness of the pistons, the 6-ring piston was standardised a long time ago, and… | ||
| Scan15 | Carburettor and throttle design modifications based on experiments. | ||
| View original record | To R.R. of America Inc. -9- R10/G8/6/21 Contd. from R. is also at the highest temperature possible. We are now proposing, as a result of Mr. Hives' experi- ments, that the hot water to this jacket… | ||
| Scan16 | Recommendations for American owners on castor oil lubricants and an update on magneto issues and improvements. | ||
| View original record | To R.R. of America Inc. -10- R10/CS/6/21 Contd. from R. American owners should be encouraged to use a mixed lubricant largely composed of castor oil, which I then stated was specially suitable for… | ||
| Scan18 | Request for information on the best method for fixing platinum points and other similar materials. | ||
| View original record | To EFC) from DA. HS X. 186 X. 1818 ORIGINAL. RECEIVED. EFC JUN 14 DA2/G9/6/21. 3 RE FIXING PLATINUM POINTS. Mr. Royce gave me to understand the other day that there was some information available as… | ||
| Scan19 | Accompanying drawing No. LeC.1403 for the Goshawk II bonnet catch. | ||
| View original record | To DA. from E. COPY to CJ. * WDR. * HS. * EY. X4241 ORIGINAL E2/09/6/21. X4241 RE "GOSHAWK II" - BONNET CATCH. We send you herewith drawing No. LeC.1403 shewing the above. A memo will be sent later… | ||
| Scan20 | Design and placement of a bonnet catch for the Goshawk II. | ||
| View original record | To BA. from E. Copy to Gd. " " HGA. " " HS. " " RV. " " FO. X4241 ORIGINAL EFC RECEIVED JUN 14 1921 E6/G9/6/21. RE "GOSHAWK II" - BONNET CATCH. We have sent you under cover of our memo E2/G9/6/21,… | ||
| Scan21 | Sending drawing LeC.1405 for Dynamos & Motors for the Goshawk I & II and 40 HP Chassis. | ||
| View original record | To BA. from E. Copy to RGH LJV HS. RGC. [The preceding five lines are struck through] ORIGINAL El/09/6/21. X4383 X4384 RE R.R. DYNAMOS & MOTORS - "GOSHAWK I & II" AND 40 HP. CHASSIS. We send you… | ||
| Scan22 | From R. to H.S. and E.F.C. about correspondence with Brolt Limited and arranging an interview. | ||
| View original record | To HS. } from R. EFC. ORIGINAL 3 R8/G9/6/21. X4165.X.973. RE ELECTRICAL EQUIPMENT. I send you herewith copy of letter I have received from Messrs. Brolt Limited, and also copy of my reply. Would you… | ||
| Scan23 | Carburettor arrangements and throttle heating methods in response to American complaints. | ||
| View original record | To HS. from R. Copy to CJ. [struck through] " " WOR. [struck through] " " BY. [struck through] X3614 X4305 ORIGINAL [stamp] RECEIVED [stamp] RE U.S.A. COMPLAINTS. R4/G9/6/21. 3. I shall be glad if you… | ||
| Scan24 | 'Goshawk II' engine starting switch, suggesting Bakelite Micarta as an alternative to mica insulation. | ||
| View original record | To BA. from E. Copy to CS. WGR. BY. HS. EFC. RECEIVED ORIGINAL. EL/G10/6/21. X.3915 RE "GOSHAWK II" ENGINE STARTING SWITCH. X.3513 We send you herewith drawing Lec.1404 shewing the above. The drawing… | ||
| Scan25 | Faults with Watford magnetos and the adoption of a newer sleeve type. | ||
| View original record | ORIGINAL [Text block, struck through] Re-iss. from R. Logg to The Kirkwood. [illegible] E.F.C. Rolls-Royce of America Inc. (For the attention of EFC) R3/G10/6/21. X.430 RE MAGNETOS. X. 2375 X 4181… | ||
| Scan26 | Advance blueprint for a 40/50 HP carburettor and induction system designed for American conditions. | ||
| View original record | To HS. from E. Copy to CJ. X4390 X4305 RE 40/50 H.P. CARBURETTOR AND INDUCTION PIPES. In accordance with Mr. Royce's instructions, we send you herewith an advance print of one of the two schemes of… | ||
| Scan27 | Request for an 'Autovac' for a 'Goshawk II' chassis, correcting the subject which originally mentioned a 'Dynamo'. | ||
| View original record | To HS. from E. Copy to CJ. " " WOR. " " DA. " " BY. " " EFC. ORIGINAL E8/G11/6/21. X3579 RE "GOSHAWK II" - DYNAMO. In accordance with Mr. Royce's wishes, would you kindly send or bring an "Autovac"… | ||
| Scan29 | Requesting a test of the Smith Type 5S motor for the 'Goshawk II'. | ||
| View original record | TO EFC. from R. Copy to cd. " " HS. " " BX. " " DH. ORIGINAL. R7/G13/6/21. X.4342 - SMITH TYPE 5S MOTOR FOR "GOSHAWK II". In reply to your memo EFC7/T2/6/21, will you please test the above motor as it… | ||
| Scan30 | Specifications and stock availability for Brolt lighting equipment for 40/50 HP and 20 HP models. | ||
| View original record | To EFC. from R. Copy to CJ. ORIGINAL R6/G14/6/21. H X.973 X.4359 X.4342 RE BROLT LIGHTING EQUIPMENT. With reference to Brolt Ltd., I think we might give them such particulars as to enable them to find… | ||
| Scan31 | Issues with Exide batteries and considering C.A.V.-Willard batteries as an alternative for installations. | ||
| View original record | To EFC. from R. Copy to CJ. " " WOR. " " HS. " " DA. " " BY. ORIGINAL X.4288 (crossed out) X.4283 (crossed out) RE ACCUMULATORS FOR BOTH CHASSIS. X.664 I think it is quite clear that we can only… | ||
| Scan32 | Analysis and description of the construction of a Delco Packard ignition condenser, including a diagram. | ||
| View original record | Handwritten notes (top): FOR R, EFC STRIPS, ANALYSES & MEASURES A DELCO (PACKARD) COIL (IGN. CONDENSER). IT COMPARES WITH AN R-R PRODUCT. Stamp: ORIGINAL To R. from EFC. c. to CJ. c. to Da. X.4284 -… | ||
| Scan34 | The design and construction of Goshawk II 'B' and 'D' type dashboards. | ||
| View original record | To DA. from E. [Crossed out text] X4270 ORIGINAL. 2 E2/G18/6/21. RE "GOSHAWK II" - "B" AND "D" TYPE DASHBOARDS. We send you herewith drawings Lec.1406/7 showing the above. These dashboards are made… | ||
| Scan35 | Sending drawing No.Lec.1409, which details a modification to simplify the coring on the 'Goshawk II' crankcase. | ||
| View original record | To DA. from E. Copy to Mr. NORT. " " HS. " " DM. [Stamped: RECEIVED HESTON JUN 21] [Stamped: ORIGINAL] EL/G18/6/21. 2. X4220 RE "GOSHAWK II" CRANKCASE. We send you herewith drawing No.Lec.1409 shewing… | ||
| Scan36 | Petrol tank modifications for the '4 EX' model, discussing materials and design improvements. | ||
| View original record | ORIGINAL RECEIVED JUN 24 1921 FC R2/321/6/21. X. 3764. REPORT ON 4 EX. JUST RETURNED FROM AMERICA (CONTD.) PETROL TANK. With reference to the petrol tank, we have examined the modifications you have… | ||
| Scan37 | Quality and design of carburettor fittings and petrol level indicators for the American market. | ||
| View original record | To R.R. of America Inc. from R. -2- R2/G21/6/21 Contd. the carburettor supply system; one on the floatchamber of the carburettor, and the other one on the end of the suction pipe in the tank.… | ||
| Scan38 | Review of the Bosch Battery Ignition system, its applicability to the current chassis, and suggestions for improvements. | ||
| View original record | To R.R. of America Inc. from R. -3- R2/021/6/21 Contd. BOSCH BATTERY IGNITION. X.4275. Regarding the Bosch battery ignition, I was pleasantly surprised how easily this was applicable to our present… | ||
| Scan39 | Technical memo discussing design and performance of a driving spindle, condenser, and low tension contact maker. | ||
| View original record | To R.R. of America Inc. from R. -4- R2/G21/6/21 Contd. driving spindle suits the Bosch equipment contact maker and the good bearings we provide for this spindle are available for carrying the cam for… | ||
| Scan40 | Design and fitting of an ignition governor, coil, ballast resistance, and storage for spares. | ||
| View original record | To R.R. of America Inc. from R. -5- R2/G21/6/21 Contd. but we do not know how much running these have done. Ignition Governor. X.4275 Regarding the governor,we believe they have set this to suit the… | ||
| Scan41 | Application of American Bosch ignition systems and the selection of dynamos and switchboxes. | ||
| View original record | To R.R. of America Inc. from R. -C- R2/G21/6/21 Contd. General. X.4275 I would like to say that I am very pleased with the application of this apparatus, and think it would be very satisfactory to… | ||
| Scan43 | Sketch of a spigot for an American Bosch battery ignition throttle governor casing on a 40/50 chassis. | ||
| View original record | SPIGOT FOR AMERICAN BOSCH BATTERY IGNITION ON 40/50 CHASSIS THROTTLE GOVERNOR CASING. i.e. increased length perhaps with bronze or steel surface obtained by pressing on piece of steel tube. R.… | ||
| Scan44 | The condition of car 4 EX following its return from America, detailing its overall state, rear springs, and induction pipe modifications. | ||
| View original record | To [unclear text] from R. ORIGINAL RECEIVED 20 JUN 1921 X3764 REPORT ON 4 EX. JUST RETURNED FROM AMERICA. (1) The car arrived in an extremely dirty and untidy condi- tion, the new pieces, with but few… | ||
| Scan45 | Future car carburettor positioning and starting system designs. | ||
| View original record | To R.H. of America Inc. from R. -2- R1/G17/6/21 Contd. For future cars we anticipate it will be found preferable to abandon the present throttle and move the position of the carburettor high up, with… | ||
| Scan46 | Water temperature control system, including radiator louvres and thermostats, and the Bijur starter motor. | ||
| View original record | To. R.R. of America Inc. from R. -3- R1/G17/6/21 Contd. next week. (5) RE TEMPERATURE OF WATER. Regarding the maintenance of the temperature of the water, we certainly think that the louvres in front… | ||
| Scan47 | Technical memo discussing the efficiency of starter motors and issues with the starter press button, Klaxon switch, and dynamo equipment. | ||
| View original record | TO R.R. of America Inc. from R. -4- RL/G17/6/21 Contd. -------------------------------------------------------------------------------- to save the battery. This was 7 or 8 years ago, since then it… | ||
| Scan48 | Communication discussing failures in the charging system and proposing a switch to a more reliable Bijur dynamo and regulator. | ||
| View original record | To R.R. of America Inc. From R. -5- RL/G17/6/21 Contd. charging switch. The reliable operation of this device is of the utmost importance, because should it fail fuses are blown, and the dynamo ceases… | ||
| Scan49 | Technical memo discussing issues with the Bijur dynamo and distribution board. | ||
| View original record | To R.R. of America Inc. from R. -C- R1/G17/6/21 Contd. are arranged on the engine side of the dashboard above the steering box. In this position they can be easily examined should it be thought they… | ||
| Scan50 | Merits of double versus earthed wiring systems and evaluating a Westinghouse switch box. | ||
| View original record | To R.R. of America Inc. from R. -7- RL/G17/6/21 Contd. It is regretful that the double wiring system naturally requires more wires and more complication than an earthed system, but it has the… | ||
| Scan52 | Properties and potential applications of Monel Metal as an alternative to stainless steel in various car parts. | ||
| View original record | To MR. From R. Copy to Mr: HS. " " DX. " " EPC. ORIGINAL. R10/G21/6/21. RE MONEL METAL. X.3309 This appears to be a fortunate alloy of nickel and copper in much the same way as the alloy of chromium… | ||
| Scan53 | The progress and outstanding items for the 'Goshawk II' chassis. | ||
| View original record | To WOR. from E. Copy to CJ. " " HS. " " BY. " " DA. ORIGINAL X.4219 X4240 X4264 E4/G21/6/21. X4270 RE PROGRESS OF "GOSHAWK II" CHASSIS. X4270 In reply to your memo WOR7/M17/6/21, we make the following… | ||
| Scan54 | Modifications to rear springs, including new bushings and an abandonment of the cantilever method. | ||
| View original record | ORIGINAL. TO BY. from R. Copy to CJ. " " MOR. " " HS. " " DH. X.2628 X4386 FC JUN 24 RE REAR SPRINGS. RECEIVED R1/G22/6/21. 3 I hope they have not failed to inform you of the modifications which are… | ||
| Scan55 | The results and methodology of starter motor brake efficiency and static torque tests. | ||
| View original record | RR-STARTER MOTOR BRAKE TEST RESULTS. ORIGINAL EFCL/T22.6.21. r To R & E. from EFC. c. to CJ. & PN. c. to En. & Ev. c. to EP. & De. c. R.R. of America Inc. X.3082 - R.R. STANDARD STARTER MOTOR BRAKE… | ||
| Scan56 | Comparison of an experimental starter motor's performance against the standard production motor. | ||
| View original record | Contd. -2- EFC1/T22.6.21. Comparing the curves on the torque base of the experimentally made motor and standard starter motor, it will be seen that the performance of the Experimental motor is… | ||
| Scan57 | Motor temperature conditions and static torque tests for engines. | ||
| View original record | Contd. -3- EFC1/T22.6.21. As regards the temperature condition of the motors under test, this does not enter into it so much as in the case of the dynamo performance, as the motor is usually in a… | ||
| Scan58 | Continuation of a report calculating engine torque based on amperes, chain reduction, and motor voltage. | ||
| View original record | Contd. -4- EFC1/T22.6.21. to our curves will show that the torque corresponding to these amperes is from 40 to 44 lb-inches. The corresponding engine torque would be about 480 to 520 lb-inches. Making… | ||
| Scan59 | Graph of performance curves for an experimental starter motor, showing efficiency, voltage, BHP, amperes, and torque against speed. | ||
| View original record | STARTER MOTOR BRAKE EFFICIENCY. X.3082 R.R. EXPL. MOTOR X.3009. CURVE LABELS: EFFICIENCY., VOLTS., B.H.P., AMPERES, TORQUE. X-AXIS: SPEED (R.P.M.) 0, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000,… | ||
| Scan60 | Performance graph showing the brake efficiency, speed, voltage, and power of a starter motor against torque. | ||
| View original record | STARTER MOTOR BRAKE EFFICIENCY X.3082. R.R. STANDARD STARTER MOTOR A. X.3009. APPROX. WORKING POINT ON 40/50 CHASSIS. ELECTRICAL H.P. EFFICIENCY VOLTAGE AMPERES B.H.P R.P.M SPEED EFFICIENCY VOLTS… | ||
| Scan62 | Performance graph showing brake efficiency, horsepower, voltage, amperage, and speed against torque for an experimental starter motor. | ||
| View original record | STARTER MOTOR BRAKE EFFICIENCY. X.3082. R.R. EXPL. MOTOR X.3009. APPROX. WORKING POINT ON 40/50 CHASSIS. AXIS LABELS: ELECTRICAL H.P., EFFICIENCY, VOLTAGE, AMPERES, B.H.P., R.P.M., TORQUE (POUND… | ||
| Scan63 | Design and potential points of failure for the Goshawk II rear springs. | ||
| View original record | To DY. from R. Copy to CO. " " WOR. " " HS. " " DA. X4262 ORIGINAL RE "GOSHAWK II" REAR SPRINGS. RECEIVED, 2 Thank you for your remarks with reference to "Goshawk II" rear springs, I think we will… | ||
| Scan64 | Instruction to increase the size and move the petrol tanks for the 'Goshawk II' model. | ||
| View original record | ORIGINAL EA/022/6/21. 2 To EX. from E. [Struck Through] Copy to C.S.R. [Struck Through] HS. X4266 RE "GOSHAWK II" PETROL TANKS. Kindly note in view of the position of the spare wheel now decided on by… | ||
| Scan65 | The rearrangement of the condenser for the 40/50 HP chassis. | ||
| View original record | To BY. from E. Copy to GJ. EPC. HS. X.25/2. ORIGINAL E7/G23/6/6/21. (H) X.2512 RE ARRANGEMENT OF CONDENSER - 40/50 H.P. CHASSIS. X.4054 In reply to your memo BY10/P6/6/21, I have taken up the points… | ||
| Scan66 | Drawings for the 'Goshawk II' engine starting switch and pedal. | ||
| View original record | To Dk. from E. Copy to Gf. " " MOR. " " HY. " " HS. " " EPC. ORIGINAL. E1/G23/6/21. x3915 RE "GOSHAWK II" - ENGINE STARTING SWITCH & PEDAL. Herewith please receive the following drawings:- Lec.1408 -… | ||
| Scan67 | Confirming the dispatch of drawings for the Goshawk II's ballast resistance and ignition wiring. | ||
| View original record | TO DA. from E. Copy to CJ. " " WOR. " " RY. " " HS. " " JPG. ORIGINAL E2/G23/6/21. X3485 RE "GOSHAWK II" - BALLAST RESISTANCE AND IGNITION WIR ? Herewith please receive the following drawings in… | ||
| Scan68 | From 'E' to 'HS' urging action on the 'Goshawk' II Autovac at the request of Mr. Royce. | ||
| View original record | ORIGINAL. To HS. from E. E5/G23/6/31 x3579 RE "GOSHAWK" II AUTOVAC. Would you kindly note Mr. Royce would like you to urge the above, as he thinks it is important that we should have it as soon as… | ||
| Scan69 | The failure and testing of Galli-ator radiator shutters fitted to the 4 EX experimental car. | ||
| View original record | 4 EX ORIGINAL To R. From Hs. c.c. to CJ. c.c. to EH. c.c. to E. c.c. to Ds. c.c. to HY. c.c. to EP. c.c. to E.W.T. for R.R. Inc. X3764 X3901 PARTS FITTED TO 4.EX CAR. Galli-ator Shutter in front of… | ||
| Scan70 | The operation of vacuum-operated radiator shutters, detailing issues with leakage and insufficient vacuum at full throttle. | ||
| View original record | contd:- -2- HGR/LCR23.6.21. ************** commence to move until the vacuum was showing 1.25" of mercury. Before the shutters would open to the full extent it requires 6.5" of mercury. These figures… | ||
| Scan72 | Comparison of American Foxboro' instrument gauges with existing English gauges for the 4. EX car. | ||
| View original record | R.R. 235A (100 T) (S.H. 798. 10-12-20) G 2947 ORIGINAL To R. From Hs. c. to CJ. c. to BH. c. to E. c. to Dn. c. to HY. c. to KP. c. to EWT. for R.R. Inc. Hs2/LG24.6.21. X3764 X3903 X3793 PARTS FITTED… | ||
| Scan74 | The decision to adopt standard C.A.V.-Willard batteries, weighing their merits against the convenience of separate cell batteries. | ||
| View original record | To EFC. from R. Copy to CJ. " " WOR. " " DA. " " BY. ORIGINAL R10/G24/6/21. X.4283 RE C.A.V. WILLARD BATTERIES. (EFC3/T21/6/21) We will adopt the standard C.A.V.-Willard in their standard form and let… | ||
| Scan75 | Cable received from Springfield requesting drawings for a Hives Pilot Jet. | ||
| View original record | ORIGINAL To R. From Hs. c.c. to CJ. c.c. to E. c.c. to R. c.c. to EH1. X4387 RE. PILOT JET. We have received the following cable from Springfield: "Number 103". Hives Pilot Jet brought by Platford… | ||
| Scan76 | Suggestions for simplifying the cores for the 'Goshawk II' crankcase, referencing drawings Lec.1413 and 1414. | ||
| View original record | To BY. from E. Copy to CC. " " SON. (crossed out) " " GA. (crossed out) " " HS. (crossed out) " " E.O. (crossed out) ORIGINAL E1/G24/6/21. [STAMP: RECEIVED FO 27 JUN] [Handwritten: X4220] RE "GOSHAWK"… | ||
| Scan78 | Directive to halt detailing work on the Goshawk II battery ignition and governor mechanism. | ||
| View original record | To B.Y. from E. Copy to C.G. W.O.R. D.A. H.S. E.P.C. Y3485 ORIGINAL E2/G25/6/21. RE "GOSHAWK II" BATTERY IGNITION. In accordance with Mr. Royce's wishes, would you please hold up the detailing work on… | ||
| Scan79 | The re-standardisation of a 40/50 HP condenser, specifically concerning a new earth connection and stud fixing. | ||
| View original record | To HS. from E. Copy to Cd. " " EPC. " " DA " " DV ORIGINAL E1/G25/6/21. 4 X.4054 RE STANDARDISATION OF 40/50 H.P. CONDENSER WITH NEW TYPE EARTH CONNECTION. X.4286. Referring to the model which you… | ||
| Scan81 | In-house production of Bakelite moulds, coil cases, and other electrical components. | ||
| View original record | To W. from R. Copy to Ed. " MOR. " EPC. " HS. " HY. " R.R. of America Inc. (For the attention of-OX.) ORIGINAL X3573 RE BAKELITE MOULDS - COIL CASES - (BY2/P22/6/21) X3445 We intend to use exactly the… | ||
| Scan83 | Design flaws of the side filler on the petrol tank for the 4.EX car. | ||
| View original record | R.R. 285A (100 T) S.H. 798. 10-12-20. G 2947 4 EX ORIGINAL TO from Hs. c. to CJ. c. to EN. c. to A. c. to Da. c. to BY. c. to EP. c. to EWT. for R.R. Inc. X3764 X3687 Hal/LG26.6.21. X3896 PARTS FITTED… | ||
| Scan84 | The design and issues of petrol tank level indicators, fillers, and vent pipes, comparing different schemes. | ||
| View original record | Contd. -2- because it is a type which folds down over the back of the petrol tank. Springfield appear to have dropped the demand for the reserve compartment. I believe their attitude is that if a… | ||
| Scan85 | Comparison of fuel indicators for the 4.EX car and a critique of a petrol filter fitting design. | ||
| View original record | -3- contd. needle to rust up and stick. The Marmon Car which we have has an indicator which is practically vertical and is made by the Boston Gauge Company; on there, they have fitted a front… | ||
| Scan87 | Results of performance and discharge tests on batteries, specifically the R.R. Tudor 1. | ||
| View original record | To R. & E. from E c. CJ. & PN. c. Hn. & Ey. c. Da. & EP. c. EWT. for R.R. Inc. ORIGINAL X.664 - BATTERIES. Further to our EFC3/T6.10.20, further batteries have now completed our preliminary routine… | ||
| Scan88 | The performance and testing of various batteries, including models from Tudor, De Martin, and Exide. | ||
| View original record | Contd. -2- EFC4/T2.6.21. We have written to the Tudor Company enumerating the points in which these batteries still do not agree with our specification, pointing out that the remaining batteries sent… | ||
| Scan89 | The performance and testing of C.A.V. Willard batteries, including vibration tests. | ||
| View original record | Contd. -3- EFC4/T2.6.21. more than balanced by the increased durability of the battery. Battery No. 63. C.A.V. Willard Thread Rubber 12XR-7/I We received two of these batteries one of which was put… | ||
| Scan90 | Table of results from experimental tests on charging, lighting, and starting batteries. | ||
| View original record | R.R. 63 (50 T) (S F. 846. 6-8-19) G. 2459. -3- TABLE OF RESULTS OF EXPERIMENTAL CHARGING LIGHTING AND STARTING BATTERIES. (Handwritten top right): Remained charged | Ref. No. | Maker and A.No. |… | ||
| Scan93 | Graph showing intermittent high rate discharge tests of various batteries. | ||
| View original record | AMPERES DISCHARGE MINUTES OF CONTACT INTERMITTENT HIGH RATE DISCHARGE TESTS OF BATTERIES All batteries were discharged through the same circuit at constant resistance .0763 ohm. All curves correspond… | ||
| Scan94 | Discharge test graph for an R.R. Tudor I component. | ||
| View original record | R.R. Tudor I. 19-5-21 Volts per div = .290 Amps per div = .248 Ohms in circuit = 1.170 No of hours discharge = 5.6 Amperes Hours | ||
| Scan95 | Recommending the modern 'Boyce' patent push-on tyre pump connection over the old-fashioned screw type. | ||
| View original record | R.R. 235A (50 T) (S.H. 986, 18-2-21) G. 2008 To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY ORIGINAL. Hs6/LG2.6.21. X1404 WOOD MILNE TYRE PUMP CONNECTIONS. It is evident that the tyre pump… | ||
| Scan96 | Presenting a table of results from heating tests conducted on inherently controlled chassis dynamos. | ||
| View original record | To R. & E. from EFC. c. CJ. c. En. & By. c. Da. & EP. c. EWT. for R&R.Inc. ORIGINAL. EFC3/T3.6.21. X.3936 HEATING TESTS OF INHERENTLY CONTROLLED CHASSIS DYNAMOS. We now send you table of collected… | ||
| Scan97 | Test results for inherently controlled chassis dynamos. | ||
| View original record | I.3698 - INHERENTLY CONTROLLED CHASSIS DYNAMO DYNAMO TEST RESULTS 3.6.21. TABLE HEADERS: - Date of Test - Dynamo. Name. Type. No. - Ambient temp. (C°) (Columns: Initial, Final) - FIELD TEEF: Ohms hot… | ||
| Scan98 | Experimental running of tungsten contact points, including a suggestion from Mr. Royce. | ||
| View original record | ORIGINAL To R & E. from EFC. c. CJ. & FN? c. Dg & Ry. c. EP & De. c. Exf. for R.R.Inc) EFC2/T6.6.21. X.2694 - TUNGSTEN CONTACT POINTS. ---------------------------------- Herewith please receive copies… | ||
| Scan99 | Various bench tests conducted on tungsten contact points supplied by the Tungsten Manufacturing Co. | ||
| View original record | EFC. AA.62. X. 2894 - TESTS OF TUNGSTEN CONTACT POINTS (P & Q) (TUNGSTEN MANUFACTURING CO. (2)). The first set of these points has now run for 500 hours under standard conditions on the bench. They… | ||
| Scan100 | Report page detailing observations on metal surfaces after a 45-hour experiment involving tungsten points and electrical sparking. | ||
| View original record | -2- Con d An hour or two of this sufficed to form a deep purple scale on the surfaces, while the surrounding area was covered with a white deposit. The run was continued for 45 hours, but without much… | ||
| Scan101 | Test report on tungsten contact points from Fansteel Co. U.S.A. after a 400-hour bench run. | ||
| View original record | EFC. AB.1 1.6.21. TEST OF TUNGSTEN CONTACT POINTS (V) FANSTEEL CO. U.S.A. (2) These points, fitted by us to the R.R. standard blade and screw have completed 400 hours running on the bench under… | ||
| Scan102 | The preliminary test run of a lengthened Lucas E.575 dynamo. | ||
| View original record | ORIGINAL To R. & E. from EFC. c. CJ. & PN. c. Bn. & By. c. Ep. & Ds. c. EWI. for R.R.Inc. EFCB/T11.6.21. X.4352 - LENGTHENED LUCAS E.575 DYNAMO. We yesterday received the sample lengthened Lucas E.575… | ||
| Scan103 | Adoption of straight-sided cord tyres for the 'Goshawk' model and their performance. | ||
| View original record | To BY. from R. c. to CJ. c. to BJ. c. to C. c. to PN. c. to Hs. c. to Da. c. to R.R. Inc. for attention of OY. X3056 R9/G22.6.21. X.4050 X.3056. RE STRAIGHT SIDED CORD TYRES. I am very pleased to see… | ||
| Scan104 | Performance test results of a lengthened Lucas E.575 dynamo. | ||
| View original record | To R. & E. from EFC. c. to CJ. & PN. c. to EP. & Da. c. to Bn. & Ry. c. to EWT. for R.R.Inc. ORIGINAL EFC2/T22.6.21. X.4352 - LENGTHENED LUCAS E.575 DYNAMO. Further to our EFC2/T11.6.21, we have now… | ||
| Scan105 | Comparison of dynamo control methods, specifically regarding the performance of the control brush. | ||
| View original record | Contd. -2- EFC2/T22.6.21. variation in the exact bearing of the control brush on the commutator. The brushes appear to be bedding well, nevertheless some amount of pressure put upon the control… | ||
| Scan106 | Continued typed report page comparing a machine's temperature performance against a Smith machine. | ||
| View original record | Contd. -3- EFC2/T22.6.21. and we find this to comply with our specification, but there is no doubt that it gets a little hotter than the Smith machine. EFC. | ||
| Scan107 | Graph comparing output curves for standard and lengthened Lucas E57S dynamos under hot and cold conditions. | ||
| View original record | X.4352. LUCAS LENGTHENED E57S DYNAMO. HOT AND COLD CONDITION OUT PUT CURVES. CURVE OF SPECIFIED PERFORMANCE OF FOR. RR CAR. AND AVERAGE PERFORMANCE OF LUCAS E57S MACHINES. AVERAGE OF STANDARD LUCAS… | ||
| Scan108 | Modifications to Exide and Tudor batteries to prevent corrosion on terminal lugs. | ||
| View original record | To R & E from EFC. c. to CJ. c. to Da. c. to By. X.607 - RE EXIDE AND TUDOR BATTERIES X.4053 X.4283. X.979 X.4288 We are sending you under separate cover four cell lids with stoppers, terminal lugs,… | ||
| Scan109 | Analysis of battery terminal corrosion concerning brass and leaden washers, and suggestions for improved arrangements. | ||
| View original record | Contd. - 2 - EFC1/T 23.6.21. followed by a hexagon nut, after which a flat strip connector comes on, followed by a further nut and a lock nut. In principle, the arrangement seems correct except for… | ||
| Scan110 | Comparison of battery specifications and performance from suppliers such as Tudor, C.A.V., and Exide. | ||
| View original record | Contd. -3- EFC1/T23.6.21. because they are making up for us two batteries to represent our ideas in every respect. It may be remembered that some considerable time ago we visited the Tudor Company and… | ||
| Scan111 | Note comparing the prices of Tudor, Exide, and C.A.V. Willard batteries. | ||
| View original record | Contd. -4- EFC1/T23.6.21. ourselves and the Tudor Company. The recently quoted price of the Tudor battery is £7.17.6 as against the present standard Exide £8.10.0 and the C.A.V. Willard 12 XR3 £6.12.8… | ||
| Scan112 | Results of disintegration tests conducted on battery plates. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. En. & By. c. EP & Da. c. EWT. for R.R.Inc. EFC5/T23.6.21. X.3978 - DISINTEGRATION TESTS OF BATTERY PLATES We have just completed some disintegration tests of… | ||
| Scan113 | Variability and failure issues in single field winding, third brush controlled dynamos. | ||
| View original record | R.R. 235A (100 T) (S.H. 798. 10-12-20) G 2947 ORIGINAL To R. from EFC. c. to CJ. c. to Da. EFC8/T23.6.21. X.294 - DYNAMOS - SINGLE FIELD WINDING THIRD BRUSH CONTROL. In addition to the point already… | ||
| Scan114 | The endurance testing of a new type Lucas cutout with a duplex magnetic circuit. | ||
| View original record | To R & E from EFC c. to CJ. & FN. c. to Bn. & By. c. to Ds. & EP. c. to EWT. for R.R.Inc. X.4349 - NEW TYPE LUCAS CUTOUT WITH DUPLEX MAGNETIC CIRCUIT. We yesterday tested this cutout. By means of a… | ||
| Scan115 | Analysis of a fault in a cutout component concerning operating voltage and reverse current. | ||
| View original record | Contd. -2- EFC2/T24.6.21. A fault of this cutout upon which perhaps too little stress was laid in our previous report is that, quite apart from the wide range of operating voltage due to temperature… | ||
| Scan116 | The performance of an electrical cutout, noting issues with battery charging and magnetic reluctance. | ||
| View original record | Contd. -3- EFC2/T24.6.21. (1) The range of operation between cold and hot condition is greater than we specify. This means some loss of battery charging current in the early stages when the system has… | ||