Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | On thermostat control tests, the function of a bye-pass hole, and preventing radiator freezing in cold climates. | ||
| View original record | To R. from Hs. c. to CY. c. to CN. c. to E. c. to Da. c. to BY. c. to OY. c. to Na. g.fe. [STAMP] ORIGINAL [STAMP] RECEIVED JUN 6 3 Hs1/LG8.6.20. X.3563. RE THERMOSTAT CONTROL. X.3456. We have carried… | ||
| Scan1 | Page describing the worst condition for radiator freezing. | ||
| View original record | Contd. -2- Hsl/LGS.6.20. ********** the engine is run. The worst condition for freezing the radiator, is when the car is coasted down a very long hill. Hs. R.R. 235 B 200 (Y) (S.E. 674. 22-5-19) G.… | ||
| Scan2 | Comparative test of engine water heat-up times with various thermostat bye-pass configurations. | ||
| View original record | Engine run with car standing at 1000 R.P.M. - no load. Comparative Times taken to heat up water. | Temp. | Standard car - no thermostat or blanking plates. | Thermostat fitted .062" bye-pass. |… | ||
| Scan3 | Wiring improvements for the 4.EX car, including a new type of wire and junction box. | ||
| View original record | EFC. from Hs. [Stamp: ORIGINAL] Hsl/LG10.6.20. [Handwritten: 4] [Handwritten, struck through: X.2778c.] RE - WIRING. [Handwritten: X.3764b.] [Handwritten: X.3977] We have fitted up 4.EX Car with the… | ||
| Scan4 | The testing of two different types of rear springs, detailing the failure of one set due to cracked leaves. | ||
| View original record | To R. from Hs. c.c. to CJ. c.c. to H. c.c. to L. c.c. to Da. c.c. to BY. ORIGINAL. 9.FC. X.3981. RE REAR SPRINGS. X.1331 X.2628 We are at present testing on the bumping rig a pair of the latest type… | ||
| Scan5 | Investigation into improving the output curves of Lucas C.575 and Smith Type 2D dynamos. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP 180865 ORIGINAL To R. from EFC. c. CJ. c. E. c. Bn. c. Da. c. EP. c. Hs. c. Wd. c. PN+ c. By. EFC1/T17.6.20. ___ X.4060 - LUCAS C.575 DYNAMO. X.295 - SMITH TYPE 2D… | ||
| Scan6 | Dynamo specifications, performance, and adjustments for suppliers Lucas and Smith. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP 180865 Contd. -2- EFC1/T17.6.20. that they can produce a machine of this type giving the output curve which we require. X.294 (struck through) X.3526 (struck… | ||
| Scan7 | Continued analysis of a machine's output performance and operational characteristics compared to a Lucas model. | ||
| View original record | Contd. -3- EFC1/T17.6.20. retarded position, and that the output performance of the machine under similar temperature conditions is very much better than that of the Lucas for a difference of weight… | ||
| Scan8 | Specification for the electrical operation of a dynamo for a car. | ||
| View original record | EFC/T. 15.6.20. SPECIFICATION OF ELECTRICAL OPERATION OF DYNAMO FOR R.R. CAR. ----------------------------------- The dynamo, after being run on load on the bench for four hours with an ambient… | ||
| Scan9 | The comparative test results for Lucas C.575, E.575, A.400 and Smith Type 2D dynamos. | ||
| View original record | ORIGINAL. For complete set of curves see X. 3936. To R. from EFC. c. CJ. c. Bm. c. E. c. EP. c. Hs. c. Wd. c. PN. c. Bv. c. Pa EFC1/T18.6. O. X.4080 - LUCAS C.575 DYNAMO. X.314s. - LUCAS E.575 DYNAMO.… | ||
| Scan10 | Continued analysis of performance curves for various 2D machines and dynamos under different conditions and brush settings. | ||
| View original record | Contd. -2- EFC7/T18.6.20. conditions. The curves which are marked 2D (O) are the curves for the original type 2D machine submitted to us. The cold curve marked 2D (1) is for one of the later 2D… | ||
| Scan11 | Performance and heating comparison between Smith type 2D and C.575 Lucas dynamos. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 Contd. -3- EFC7/T18.6.20. the control brush nearly complies with our specified performance, but, as previously explained, the heating of the dynamo is… | ||
| Scan12 | Report conclusion on heating tests for inherently controlled machines and plans for further investigation into shunt wound machines. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 -4- EPC7/T18.6.20. Contd. is better than that for all inherently controlled machines of other makes with which we have experimented. Attached to Mr. Royce's… | ||
| Scan13 | Chassis dynamo heating test results for various Lucas and Smith dynamo models. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 18.6.20. X.3936 - CHASSIS DYNAMO HEATING TEST RESULTS X.294. (Maximum output) (first lot) TABLE DATA: Column Headers: Dynamo, Maximum ampere output (Start,… | ||
| Scan14 | Table of chassis dynamo heating test results for various models and settings. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 18.6.20. CHASSIS DYNAMO HEATING TEST RESULTS. (Maximum output) (Second lot). Dynamo. Maximum amp. output Start. Finish. Initial or ambient Temperature. Final… | ||
| Scan15 | Bump rig testing of a new design for chassis rear springs, noting failures and improved bedding. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 To R. from Hs. c. to C. c. to CN. c. to E. c. to Da. c. to BY. EFC ORIGINAL. sent out 21.6.20. 4 Hs1/LG16.6.20. X.3981. RE CHASSIS REAR SPRINGS. X.1331 X.3923… | ||
| Scan16 | Mr. Royce's criticisms regarding the exhaust cut-out seating scheme. | ||
| View original record | To BA. from E. Copy to SJ. " " RH. " " HG. " " HY. " " EFC. X.4141. ORIGINAL E3/C4/6/20. RE EXHAUST CUT-OUT SEATING. N. SCHEME 368. Referring to the above scheme, kindly note Mr. Royce's criticisms as… | ||
| Scan17 | Mr. Royce's criticisms and requested modifications for the exhaust pipe nozzle design, scheme 366. | ||
| View original record | To DA. from E. Copy to C.J. " " BN. " " BY. " " HS. " " EFC. X.4072 ORIGINAL RE EXHAUST PIPE NOZZLE. N.SCHEME 366. Referring to the above scheme, kindly note Mr. Royce's criticisms as follows:- The… | ||
| Scan18 | Mr. Royce's suggestion for a taper reamer design. | ||
| View original record | To WS. from E. Copy to C.J. " WOR. " BY. " EFC. ORIGINAL X.4143 RE TAPER REAMER. RECEIVED In accordance with Mr. Royce's wishes I send you as follows, a suggestion which he has made for a taper… | ||
| Scan19 | Specifications and advantages for experimental reamers and a left-hand taper tap. | ||
| View original record | To WS. from E. -2- E6/G4/6/20 Contd. The left hand flutes should be strictly at right angles to the threads to avoid obtuse cutting edges. The reamer should be sharpened by grinding the fronts of the… | ||
| Scan20 | Stating that Mr. Royce does not agree to alter the position of the priming cock handle on the 40/50 HP chassis. | ||
| View original record | To DH. from E. Copy to CL. BN. (Struck through) DY. (Struck through) HG. (Struck through) EPC. X.4138 ORIGINAL. E1/G7/6/20. RE 40/50 H.P. PRIMING DEVICE. In reply to your memo DA1/CB1/6/20, and N.… | ||
| Scan21 | Design modifications to the 'Buzzard' engine connecting rods. | ||
| View original record | To DA. from E. Copy to C.I. " " P.N. " " B.Y. " " H.S. " " EFC. ORIGINAL EFC JUNR/0786/20. RECEIVED 2 X.3790 RE "BUZZARD" CONNECTING RODS. We return herewith original of LeC.1239. We have added the… | ||
| Scan22 | Failure of a recently supplied 1/2 watt lamp from B.T.H. | ||
| View original record | To EFC. from R. Copy to CJ. " " C. ORIGINAL. X.1114 RE 1/2 WATT LAMPS. D 9 JUN 1920 R9/G8/6/20. RECEIVED 4 The B.T.H. have sent us a further supply of 12 volt 24 watt 1/2 watt lamps. We regret to say… | ||
| Scan23 | The fitting of rear shock dampers, suggesting to focus on perfecting springs instead. | ||
| View original record | Copy to - EY. Hm. HT. Hy. Wd. Bn. Hs. EP. ORIGINAL 2 To Wor. from R. Copy to CJ. R14/G8.6.20. X3641B RE SHOCK DAMPERS. X.2628B In reading over the memos of your conferences, I am quite in agreement… | ||
| Scan24 | Letter regarding the use of Castrol lubricating oil for cars, recommending it over pure mineral oil. | ||
| View original record | To HS. from R. Copy to CS. " EFC. " OY. X.1434 X.1583. ORIGINAL. RE LUBRICATING OIL FOR CARS. I am very pleased to hear that your experience so far follows my forecasts, that a good and expensive oil… | ||
| Scan25 | From Mr. Royce detailing requested alterations for the front shock damper anchorage. | ||
| View original record | To DA. from E. Copy to CG. BN. DY. HS. EPC. ORIGINAL E1/G12/6/20. RE FRONT SHOCK DAMPER ANCHORAGE. N.SCHEME 385. X.4065. In reply to your memo DA6/CB8/6/20, kindly note two prints of N. scheme 385… | ||
| Scan26 | Mr. Royce's design points for the N. Scheme 383 shock damper. | ||
| View original record | To DA. from E. Copy to C.J. " " DN. " " HS. " " BY. " " EPC. ORIGINAL CHASSIS RECEIVED RE SHOCK DAMPER - 40/50 H.P. CHASSIS. X.39126. N. SCHEME 383. With reference to N. scheme 383, would you kindly… | ||
| Scan27 | From 'E' to 'DA' regarding modifications to a lubricator and shock damper based on Mr. Royce's wishes. | ||
| View original record | To DA. from E. -2- E3/G12/6/20 Contd. should be tried, but the collars should be attached as in fig. 4. The Rotherham lubricator with the flap lid should be replaced by an oiler with a twist lid and… | ||
| Scan28 | Recommendation by Mr. Royce to protect the speedometer cable casing on chassis 1 EX with an aluminium casting. | ||
| View original record | To BA. from E. Copy to C.I. " " RN. " " HV. " " HS. " " EFC. ORIGINAL! 4 E2/G14/8/20. X.1809 RE SPEEDOMETER CABLE. X.3763a The speedometer cable casing on chassis 1 EX. has been broken just above… | ||
| Scan29 | Sample expansion plugs received from Mr. Olley for testing and reporting. | ||
| View original record | To HS. from E. Dcopy to CJ. BN. EFC. ORIGINAL. E1/G17/6/20. RECEIVED 18 JUN 1920 x.414y. RE EXPANSION PLUGS. We send you herewith some sample expansion plugs which we have received from Mr. Olley.… | ||
| Scan30 | Future policy on introducing modifications and new designs for chassis 6 EX. | ||
| View original record | To HS. from R. Copy to CJ. " " WOR. " " PN. " " C. FUTURE POLICY - Febro. (Handwritten) ORIGINAL. (Stamped) R1/G19/6/20. 6 EX. (Handwritten) 21 JUN 1920 (Stamped) Policy * (Handwritten) X.3923 RE… | ||
| Scan31 | Two design proposals, types 'A' and 'B', for the 'Eagle' engine's cylinder expansion water jackets. | ||
| View original record | To DHW from E. Copy to CJ. " " RM " " ITS " " EPC. " " ET. X.4145 RE "EAGLE" CYLINDER EXPANSION WATER JACKETS. E1/G19/6/20. RECEIVED 21 JUN 1920 X.2437 ORIGINAL. We send you herewith drawing No.… | ||
| Scan32 | Manufacturing process of adding serrations and corrugations to a metal tube. | ||
| View original record | To DA. from E. -2- El/G19/6/20 Contd. quite easy to put in a single serration, as the metal of the tube would walk up from both directions during the spinning operation, but he thinks that the… | ||
| Scan33 | Responding to a query on the 'Buzzard' side steering tube, referencing a conversation with Mr. Royce. | ||
| View original record | To DR. from E. Copy to CJ. " " BN " " BX. " " MS. * * EFC. X 4048 ORIGINAL RECEIVED D 3 E2/231/6/2020 RE "BUZZARD" SIDE STEERING TUBE. In answer to your query regarding the above, would you kindly… | ||
| Scan34 | Standardisation and drilling of the 40/50 HP engine foot. | ||
| View original record | To DA- from E. Copy to C.L. H.S. E.F.C. ORIGINAL EE/021/6/20. RECEIVED 23 JUN 1920 X.4062 RE 40/50 H.P. ENGINE FOOT. With reference to your scheme N.364, would you kindly proceed to effect… | ||
| Scan35 | Modifications to an exhaust cut-out seating design. | ||
| View original record | 8 To D.A. from R. Copy to E.J. [Struck through] RHC [Struck through] BY. [Struck through] H.C. [Struck through] RFU. ORIGINAL. [Stamped] EA/G21/6/20 23 JUN 1920 [Stamped] RECEIVED [Stamped with clock… | ||
| Scan36 | Drawing for 'Buzzard' induction pipes of a 'Y' form. | ||
| View original record | To DA from E. Copy to CJ. RN. HTS. EFC. BK. ORIGINAL. E1/G21/6/20. RE "BUZZARD" INDUCTION PIPES. LEC.1245. X.3803 We send you herewith the above drawing shewing designs for pipe of "Y" form, sketch of… | ||
| Scan37 | Querying the effectiveness, grease loss, and potential design improvements for shock dampers following a road test. | ||
| View original record | To HS. from R. Copy to CJ. " " BN. " " DA. " " BY. " " EPC. ORIGINAL. RECEIVED X.34616 RE SHOCK DAMPERS. X.2628b. With reference to your report HS1/AT18/6/20, do the shock dampers loose their grease,… | ||
| Scan38 | Design modifications for water pumps on Eagle engines used in airships. | ||
| View original record | Co-Mins from R. Copy to G.W. [Illegible text, struck through] [Illegible text, struck through] " H.S. [struck through] " H.N. [struck through] X.2894 ORIGINAL RECEIVED 25 JUN 1920 RB/G24/6/20. (6 RE… | ||
| Scan39 | Design and implications of a combined cut-out and vibrator regulator. | ||
| View original record | To EFC. from R. Copy to C.J. " " PN. ORIGINAL R8/G25/6/20. X.4148 RE COMBINED CUT-OUT AND VIBRATOR REGULATOR. X.1369 I thank you for your memo with reference to the combined cutout and vibrator… | ||
| Scan40 | Design and experimental production of a combined vibrator regulator and cutout. | ||
| View original record | To EFC. from R. -2- R8/G25/6/20 Contd. suitable for 15 or 16 volts. As soon as we get time here we will set out the design of the vibrator regulator and cutout combined, so that you can have a few… | ||
| Scan41 | Approving a specification for the electrical operation of a dynamo with one exception. | ||
| View original record | To EFC. from R. Copy to CJ. [Struck through] ORIGINAL [Stamp] R17/G25/6/20. 2 [Handwritten] X.2944 [Handwritten and struck through] RE SPECIFICATION OF ELECTRICAL OPERATION OF DYNAMO FOR R.R.CAR.… | ||
| Scan42 | Design criticisms and requested modifications for the 'Buzzard' and 'Vulture' rear axle. | ||
| View original record | To DA. from E. Copy to CJ. HS. BT. EFC. [STAMP] D 2 JUL 1920 ORIGINAL [STAMP] RECEIVED 5 E5/G30/6/20. X.3832. X.3873 "BUZZARD" AND "VULTURE" REAR AXLE. With reference to your N. scheme 339, would you… | ||
| Scan43 | From 'E.' to 'DA.' giving instructions on axle tube modifications and axle ratios, referencing specific engine types and design schemes. | ||
| View original record | To DA. from E. -2- E5/G30/6/20 Contd. (5) The heel on the flanges of the axle tubes should be still further extended by about .100" on the radius, gashes being arranged as on N. scheme 503, to… | ||
| Scan44 | Alterations to the back axle bevel gear for the 40/50 HP chassis. | ||
| View original record | To DA from E. Copy to CE. " " RN. " " SJD. " " DY " " EFC. ORIGINAL X.4150 RE BACK AXLE BEVEL GEAR. 40/50 HP. CHASSIS. R Referring to your N. scheme 392, kindly note that Mr. Royce prefers the… | ||
| Scan45 | Approval for a design alteration to the operating pin for the clutch oil valve on the 40/50 HP chassis. | ||
| View original record | To DA. [struck through] from E. Copy to CL. " " RH. [struck through] " " HS. [struck through] " " HY. [struck through] " " EFC. X-4151. ORIGINAL. E3/G30/6/20. 3 RE OPERATING PIN FOR CLUTCH OIL VALVE.… | ||