Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Modifications to the 'Heron' & 'Stork' front axle radius rods and associated components. | ||
| View original record | TO EY. FROM DA. c. to GJ. c. to WGR. c. to HS.✔ ORIGINAL DA2/10.12.22. "HERON" & "STORK" X4547 FRONT AXLE RADIUS RODS. We send herewith N.sch. 1326 shewing the front end of the radius rods and the… | ||
| Scan1 | Design modifications to steering components, including the cross steering tube, adjusting screw, and cotter pin taper. | ||
| View original record | (2) We have shewn the adjusting screw on the cross steering tube with a slightly increased square to suit that on the radius rod end. We have also increased the thread to .750 . It will be noticed… | ||
| Scan2 | Replacement of the Bendix starter motor drive with a Bijur type pinion for the Goshawk model. | ||
| View original record | TO BY. FROM R. C. to CJ. C. to HJ. C. to HOR. C. to HS. ✔ C. to DA. C. to EF. ORIGINAL R1/M1.12.22. RE. GOSHAWK. X 3592 X 4384 We have now altered the starter motor and embodied a Bijur type of pinion… | ||
| Scan3 | Proposed change to the fan drive arrangement on the Goshawk engine and its implications for the 'Seagull' engine. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL. TO HS. FROM R. c. to CJ. c. to WOR. c. to EP. c. to BA. c. to FFG. R3/M1. 12. 22. RE. HALF TIME GEARS. X.4247 (struck through) X4237 We are… | ||
| Scan4 | New arrangement and modifications for the Goshawk engine ignition system, including the coil, distributor, and wiring. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. c. to OJ. c. to WOR. c. to LPO. c. to DA. c. to IF. R2/M1.12.22. GOSHAWK IGNITION. X3435 E. is sending our new arrangement for the… | ||
| Scan5 | From RS to HS & HL regarding trialling a 'New Process Oil' from Alex: Duckham & Co. Ltd. | ||
| View original record | TO HS. & HL. FROM RS. Sir Arthur Duckham, (whose brother is a member of Alex: Duckham & Co. Ltd, the oil people) has been in communication with Mr. Royce regarding the "New Process Oil", and is… | ||
| Scan6 | Internal memorandum discussing design options and recommendations for spring shackles. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA2/14.12.22. RE. SPRING SHACKLES. XZ628 / X4261 We are still not quite sure whether the Exp. Dept. have any definite… | ||
| Scan7 | Dipping headlamps in light of new legislation and improvements to instrument board lamps. | ||
| View original record | ORIGINAL. TO R. FROM DA/EV. C. to LHS. C. to E.I. C. to DA. C. to HS.✔ C. to DX. DA/EV3/M5.12.22. RECEIVED DEC ? 1922 Handwritten: X4219 X4081 X4555 X4302 X1357 X4567 X4085 RE. VISIT TO SALES. (1).… | ||
| Scan8 | Various sales requests and engineering considerations for Goshawk, 40/50, and 20.HP chassis. | ||
| View original record | (2) (3) GOSHAWK SWITCH. X4081 Sales wish now to adopt our suggestion of a year ago and to make the switchbox on the instrument board enter the board from the rear and have a dummy flange in front.… | ||
| Scan9 | Querying the correct weight of a Goshawk chassis. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL [Stamped] Hs RECEIVED DEC 7 1922 DA/EV4/M61/12.22. TO HS. FROM DA/EV. GOSHAWK CHASSIS WEIGHTS. X4 538 In connection with your Hs4/LG201122., we… | ||
| Scan10 | Drawings for a fan driven from the dynamo drive on a Goshawk 11 engine to reduce gear noise. | ||
| View original record | ORIGINAL. TO DY. FROM E. C. to CJ. C. to WOH. C. to HS.✓ C. to WR. HS DEC 8 1922 RECEIVED X4237 GOSHAWK 11. FAN DRIVEN FROM DYNAMO DRIVE. We send you herewith drawing Nos Lec 1654 and 1655 shewing the… | ||
| Scan11 | The Goshawk starter motor, discussing pinion replacement and the material for the flywheel gear. | ||
| View original record | ORIGINAL TO BY. FROM R. c. to HS. ✓ X3592 A3587 GOSHAWK - STARTER MOTOR. With reference to your By8/P41222., I have pressed HS. to do his utmost to get the Bijur pinion to replace the Bendix. We… | ||
| Scan12 | Modifications to the rear shackles on the front springs for the 'Stork' & 'Heron' models. | ||
| View original record | TO BY. FROM DA. c. to CJ. WOR. HS. ✓ ORIGINAL. DA5/M8.12.22. "STORK" & "HERON" FRONT SPRINGS. V3288 We send you herewith N.sch.1357 shewing the rear shackles on the front springs which are modified to… | ||
| Scan13 | Operating gear for the 'Heron' & 'Stork' exhaust system cutout. | ||
| View original record | ORIGINAL. TO EX. FROM DA. c. to CJ. WOR. HS. "HERON" & "STORK" EXHAUST SYSTEM. X3859 We send herewith N.sch.1359 shewing the operating gear for the cutout shewn on N.sch.1358. It is intended that this… | ||
| Scan14 | Sending a general arrangement for the 'Stork' & 'Heron' radius rods and steering components. | ||
| View original record | TO BY. FROM DA. c. to CJ. WOR. HS. ORIGINAL. X4547 X3991 "STORK" & "HERON" RADIUS RODS & SIDE STEERING TUBE. We send herewith M.sch.1327, a general arrange-ment of the radius rods, side steering tube,… | ||
| Scan15 | Modifications to the Goshawk II engine's battery ignition system, with reference to three new drawings. | ||
| View original record | TO HY. FROM E. c. to C.I. WOR. c. to HS. RFC. ORIGINAL RECEIVED (stamp) X3485 X4079 GOSHAWK 11. BATTERY IGNITION. X4070 We send you herewith the following drawings:- Lec 1653 - Improved Ignition Coil… | ||
| Scan16 | Proposed improvements to the ignition system and wiring layout. | ||
| View original record | (2) the distributor. It makes the wiring less straggly, and it should be electrically better. The final move is to use an improved coil as on Lec 1653 permanently supported from the wheelcase. To make… | ||
| Scan17 | Mr. Royce's instruction to use double-ended tubular box spanners to simplify the tool kit. | ||
| View original record | TO BY. FROM E. c. to CJ. c. to HS.✔ c. to EP. ORIGINAL. RE. BOX SPANNERS. E1/M9.12.22. X5767 Some time ago it is believed Mr. Royce sent instructions that we should use a set of double ended tubular… | ||
| Scan18 | Proposing modifications to Goshawk 11 valves following a burnt valve incident. | ||
| View original record | R. R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 TO HS. FROM R. c.c. to CJ. WOR. c.c. to BY. EP. ORIGINAL R1/M9.12.22. GOSHAWK 11. VALVES. X4226 RECEIVED With reference to the recent burnt valve we… | ||
| Scan19 | The internal H.T. connection for the Goshawk II battery ignition coil. | ||
| View original record | TO BY. FROM E. c. to CJ. c. to EFC.✓ c. to HS. RECEIVED ORIGINAL E2/M9.12.22. 3 GOSHAWK II. BATTERY IGNITION. X4079 Referring to the improved ignition coil shewn on drawing LeC 1653, the internal H.T.… | ||
| Scan20 | Potential legislation on headlights, requesting the creation of experimental dipping headlight sets. | ||
| View original record | TO. ~~BY~~ FROM DA. c. to ~~WOR.~~ HS. ORIGINAL. DIPPING HEAD LIGHTS. L4555 Sales have informed us that there is likely to be legislation on the subject of head lights, so that the matter is not… | ||
| Scan21 | The rectification of a Maythorn Saloon, car X3730. | ||
| View original record | TO BP. FROM DA/EV. c. to R. DA. HS. RE. MAYTHORN SALOON. X3730 Mr. Royce is still strongly of the opinion that this car should be put right even if it would cost a little (although we think that… | ||
| Scan22 | Bushes for springs on a 20.HP model, clarifying wear on the top spring leaf. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 TO HS. FROM R. ORIGINAL RECEIVED 14 DEC 1922 R1/M13.12.22. BUSHES FOR SPRINGS ON 20.HP. X4261 Referring to your Hs3/LG81222., can we at the same time… | ||
| Scan23 | Failure of a Goshawk aluminium steering box during testing and proposing modifications for its fixing. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. R2/M13.12.23. GOSHAWK ALUMINIUM STEERING BOX & SUPPORT. X4264 With reference to your Hs7/LG81222., I cannot believe one box will… | ||
| Scan24 | Modifications for the 'Stork' & 'Heron' front wheel brakes. | ||
| View original record | TO BY. FROM DA. c. to CU. c. to WOR. c. to HS. ✓ ORIGINAL RECEIVED R DA2/A13.12.22. "STORK" & "HERON" FRONT WHEEL BRAKES. X4550 We thank you for your By/C12/H71222, and for your GL.29. We agree that… | ||
| Scan25 | Modifications to lever angles and the design of the cross steering lever boss. | ||
| View original record | (2) We should therefore very much like you to look into this matter again on the lines of N.scheme 1361. We should prefer not to reduce the angle of the levers so much as you suggest. On N.sch. 1361… | ||
| Scan26 | Clerical error in the calculations for an RR. 40/50 dynamo. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 TO EFC. FROM R. ORIGINAL RECEIVED DEC 15 1922 Hs X. 4010 RR. 40/50 DYNAMO. I have looked over the calculations you have made for RR. 40/50 dynamo, to… | ||
| Scan27 | Temporary bracket for the front shock absorber on 'Stork' & 'Heron' four-wheel brake models. | ||
| View original record | TO BY. FROM DA. C. to Cd. C. to WOR. C. to HS. ORIGINAL DA1/M15.12.22. "STORK" & "HERON" FOUR WHEEL BRAKES. X4550 We send you herewith N.scheme 1363 shewing the temporary bracket for bottom front… | ||
| Scan28 | Three methods for managing pinion end thrust in the 'Seagull' rear axle design. | ||
| View original record | TO BY. FROM DA. c. to EH. c. to WCD. c. to HS. ✓ ORIGINAL. DA2/M16.12.22. Hs RECEIVED DEC 27 1922 "SEAGULL" REAR AXLE. X9390 We send herewith N.sch. 1360 shewing the centre portion of the "Seagull"… | ||
| Scan29 | Design reconsideration points for the Goshawk II magneto ignition system. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM E. c.c. to CJ. BY. FP. [STAMP: ORIGINAL] [STAMP: RECEIVED DEC 14 1922] GOSHAWK II. MAGNETO IGNITION. x 3537 Referring to the above this… | ||
| Scan30 | Modifications for an 18' steering wheel model and related construction queries. | ||
| View original record | TO BY FROM DA. c. to Hs. ✓ ORIGINAL 40/50 - RE. 18" STEERING WHEEL. X3465 X1023 Mr. Royce has examined the model to N.Sch. 1349 and would like the following modifications carried out, and the model… | ||
| Scan31 | Approval from Mr. Royce for modifications to the Goshawk 11 Magneto Coupling Shaft. | ||
| View original record | R.R. 235a (100 T) (S.H. 79a. 10-12-20) G. 2948 ORIGINAL. TO HS. FROM E. e. to CJ. BY EP. GOSHAWK 11. MAGNETO COUPLING SHAFT. X4327 Referring to scheme No.453, Mr. Royce approves of fitting a spring in… | ||
| Scan32 | Mr. Royce's design suggestions for an oil level indicator on the 40/50 chassis. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM E. C. to CS. C. to DY. C. to EP. STAMP: ORIGINAL STAMP: RECEIVED DEC 20 1922 HS 40/50 CHASSIS - OIL LEVER INDICATOR. X3527 (crossed out) X1692… | ||
| Scan33 | Design improvements for engine valves and spring drives related to the Goshawk project. | ||
| View original record | ORIGINAL. TO BY.a.HS. FROM R. c. to CJ. BJ. c. to WOR. RP. RE. GOSHAWK. X4226 X4222 X4221 X3551 (1) RE VALVES. X4226 With heavy bodies I fear we are asking for a lot of HP. for a given size of valve.… | ||
| Scan34 | Design decisions for the half-time gears, magneto, tappets, and exhaust valve for the 'Seagull' project. | ||
| View original record | (2) In regard to the half time gears we are hoping that with a special oil jet upon the crankshaft pinion (and possibly with fan added) the half time unit drive will permit slack to exist between the… | ||
| Scan35 | Causes and potential solutions for steering wobble, focusing on radius rods and pivot geometry. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 [STAMP: ORIGINAL] [STAMP: RECEIVED DEC 27 1922 H8] TO HS. FROM DA. DA1/M20.12.22. RE. STEERING. X4264 X4263 X3465 X3441 We understand that radius rods and… | ||
| Scan36 | Drawings for the 'Seagull' engine's double oil pump and main oil lead. | ||
| View original record | TO EY. FROM E. c. to CJ. WOR. HS. ORIGINAL "SEAGULL" ENGINE - OIL PUMP. X9160 We send you herewith drawing No. LeC 1659 shewing the double oil pump for the "Seagull" engine and the lower portion of… | ||
| Scan37 | Drawing No. LeC 1662, detailing the camshaft and intermediate gear wheels for the 'Seagull' engine. | ||
| View original record | TO BY. FROM E. (BY. is struck out) c. to SS. WOR. HS. (SS. is struck out) ORIGINAL "SEAGULL" ENGINE - WHEELCASE & GEARS. X9170 We send you herewith drawing No. LeC 1662 giving particulars of the… | ||
| Scan38 | The removal procedure for the 'Seagull' engine camshaft, bearings, and oil pump drive. | ||
| View original record | TO DX. FROM E. c. to GJ. WOR. HS. ORIGINAL E4/M22.12.22. X9090 X9160 "SEAGULL" ENGINE CAMSHAFT & BEARINGS & OIL PUMP DRIVE. We send you herewith drawing No. Lec 1660 shewing the above. It is intended… | ||
| Scan39 | 'Seagull' engine drawing Lec 1658 and requesting the return of a blueprint. | ||
| View original record | TO BY. FROM E. c. to CJ. WOR. HS. ORIGINAL RECEIVED DEC 27 1922 Hs E1/M22.12.22. X9810 "SEAGULL" ENGINE. We send you herewith drawing NO. Lec 1658 shewing the "Seagull" engine. This drawing is a… | ||
| Scan40 | From R. to HS. regarding personal car requirements and the importance of vehicle appearance for brand reputation. | ||
| View original record | R.R. 235B (100 T S.H. 798. 10-12-20) G. 2948 TO HS. FROM R. ORIGINAL. R11/M27.12.22 Regarding the cars for WW. and for France, I think it may be taken for granted that I shall require one car… | ||
| Scan41 | Instructing a hold on the current Goshawk Spring Drive design in favour of a superior new one. | ||
| View original record | TO BY. FROM R. c. to CJ. BJ. WOR. c. to HS. ORIGINAL R3/M27.12.22. RE. GOSHAWK SPRING DRIVE. X42222 We have seen sufficient of the possibilities to promise you in the course of a few days the new… | ||
| Scan42 | Cylinder configuration for a proposed Diesel aero engine to ensure smooth running and minimise torque. | ||
| View original record | TO RG. FROM R. c. to CJ. c. to HS.✔ ORIGINAL RECEIVED R2/M28.12.22 PROGRESS, & PROCEDURE OF AERO WORK. X2064 X1906 I shall be glad if you will arrange to come to WW. soon after the New Year, so that… | ||
| Scan43 | Post office telegram message regarding the postponement of a visit. | ||
| View original record | POST OFFICE TELEGRAPHS. CONFIRMATION ORIGINAL. (249455) E41971 40,000,000 2/22 Manifoldia Ltd. E. 1215.). No. of Telegram: 47. Office Stamp: DERBY A 29 DE 22. Sent: 3.21 M. To...: 1320. Handed in at:… | ||
| Scan44 | Improved spring drive for the Goshawk engine, referencing drawing Lec 1665. | ||
| View original record | TO BY.FROM E. c. to CJ. [strikethrough]WOR.[/strikethrough] c. to HS. [strikethrough]EP.[/strikethrough] [STAMP] Hs JAN 2 1928 RECEIVED [/STAMP] [STAMP] ORIGINAL [/STAMP] [Handwritten] X4222… | ||
| Scan45 | Design specifications for driving and damping springs. | ||
| View original record | (2) The driving springs in this design are working at a somewhat smaller radius, and are shorter in length than we are at present using, but we think it should be possible to make a spring which will… | ||
| Scan46 | Proposal for a cover to conceal the wire wheel hub on the Goshawk 11 side spare wheel carrier. | ||
| View original record | TO BY. FROM DA. c. to CJ. c. to WGR. c. to HS. ✓ ORIGINAL Da1/M30.12.22. GOSHAWK 11. SIDE SPARE WHEEL CARRIER. X4085 In reply to Hy10/P271222., we send herewith N.sch. 1366 shewing what we propose in… | ||
| Scan47 | Critique of a Maythorn saloon body on a 7.Goshawk chassis, highlighting issues with weight, access, and seating. | ||
| View original record | TO BJ. FROM R. ORIGINAL. R5/M1.12.22. R c. to IHS. SP. HS. RE. 7.GOSHAWK - MAYTHORN SALOON. V3730 The saloon body on 7.Goshawk made by Maythorns is of an extremely useful type for such people as we… | ||
| Scan48 | Modification to a distribution board to clear interfering bolt heads. | ||
| View original record | ORIGINAL. TO BY. FROM R. R4/M1.12.22. c. to CJ. c. to WAR. c. to HS. ✓ c. to DA. RE. RR. DISTRIBUTION BOARD. X 3555 We found a huge piece of thick alum-inium behind the distribution board. This has… | ||
| Scan49 | Experiments and tests on a Goshawk ignition coil. | ||
| View original record | To A. & E. from EFC. c. CJ. & PN. c. Hy. & EP. c. RG. & Da. EFC./11.12.22. X4079 - GOSHAWK IGNITION COIL EXPERIMENTS Attached please find copy of my assistant's report on various tests in connection… | ||
| Scan50 | Chassis experiments comparing original Goshawk coils with improved versions and new designs. | ||
| View original record | Contd. -2- EFCB/T1.12.22. until the higher speeds. As regards chassis experiments, one of the original Goshawk coils has now been tried over the wheelcase, and has given results about equal to the… | ||
| Scan51 | Experiments conducted on coils, detailing tests of resistance, temperature, insulation, and sparking. | ||
| View original record | EPC. PB.65. Nov.29th 1922. EXPERIMENTS IN CONNECTION WITH COILS Experiments in connection with coils, have recently been carried out on the car and on the bench. Those carried out on the car were :-… | ||
| Scan52 | Continued testing of coil windings, including temperature, insulation, and sparking gap performance. | ||
| View original record | -2- Contd. The temperature results of the windings of the coils are rather lower than were anticipated, considering that the coils were heated up for half an hour on the engine, during the greater… | ||
| Scan53 | Test results for inductance and sparking performance before and after sawing off the hedgehogging at the ends of a component. | ||
| View original record | -3- Contd. corresponding primary current for each case being noted. The tests were repeated with the hedgehogging at the ends sawn off. The results are given below:- Inductance. | | With Ends. |… | ||
| Scan54 | Trend by US tyre makers to increase tyre sizes for the 40/50 HP model, outlining the benefits. | ||
| View original record | To R. from Hs. c.c. to CJ. c.c. to E. c.c. to EY. c.c. to Dn. ORIGINAL. Hs2/LG2.12.22. TYRES FOR 40/50 HP. X4565 We have heard from OY. that there is a movement amongst the Tyre makers in U.S.A. to… | ||
| Scan55 | Letter from Dunlop to Rolls Royce regarding tyre development for 20' wheels and the effects of lower pressures. | ||
| View original record | C O P Y. Messrs. The Dunlop Rubber Co.Ltd., Fort Dunlop, Erdington, Birmingham. Messrs. Rolls Royce Ltd., Nightingale Rd., Derby. 28th. Nov. 1922. dict. 27th. For the attention of Mr. Hives. Dear… | ||
| Scan56 | Burnt Goshawk engine exhaust valve, its probable cause, and a suggested modification to the radiator. | ||
| View original record | To R. from Hs. c.c. to CJ. c.c. to E. c.c. to Du. c.c. to HY. ORIGINAL 7-GOSHAWK-11. EXHAUST VALVE. X4226 XU240 We are sending to you a burnt exhaust valve which has been removed from this engine. You… | ||
| Scan57 | Faults with the brush and commutator system on the Goshawk dynamo. | ||
| View original record | To R. from EFC. c. to CJ. c. to Ey. c. to EP. c. wor. for Mr. Brock. ORIGINAL EFC/1/12.12.22. X.4335 - BRUSH & COMMUTATOR SYSTEM ON R.R. GOSHAWK DYNAMO. Some of the production Goshawk dynamos have not… | ||
| Scan58 | Issues with the dynamo's control brush adjustment during production testing. | ||
| View original record | Contd. -2- EFCL/T2.12.22. the brushes and brush holders does not remove this. Another point, and one which we feel deserves attention at the moment, is that the control brush of the dynamo is not… | ||
| Scan59 | Explaining the delay in sending the 7-Goshawk-11 Maythorn Saloon for bodywork corrections due to experimental work. | ||
| View original record | Da/Ev. from Hs. c. to LHS. c. to R. c. to CJ. ORIGINAL. Hs5/LG4.12.22. MAYTHORN SALOON. Da/Evl/M29.11.22. X3730 We would like to point out that arrangements were made a long time ago for Maythorns to… | ||
| Scan60 | Booming noise in a limousine trials car, identified as originating from the exhaust note. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL C 7 TO HS. FROM DA/EV. DA/EV2/M5.12.22. c. to DA. c. to SP. X4256 X4239 RECEIVED Hs DEC 7 1922 RE. LIMOUSINE TRIALS CAR. The limousine trials car… | ||
| Scan61 | Advantages of a semi-earthed electrical system for a chassis. | ||
| View original record | To R & E. from EFC. c. C.J. & PN. c. Hy. & EP. c. Rg. & Ds. ORIGINAL EFC1/T5.12.22. X.3374 - CHASSIS ELECTRICAL SYSTEMS. We think there is a good deal to be said for what might be called a… | ||
| Scan62 | The disadvantages of the Goshawk electrical system and a proposal for a semi-earthed system for lamp circuits. | ||
| View original record | Contd. -2- EFC/TB.12.22. are no fuses in the lamp circuits so that an emergency fuse would be provided for these circuits by converting the lamps to single pole and returning the lamp currents to… | ||
| Scan63 | Points regarding the emergency fuse on the Goshawk system and the inspection lamp wiring. | ||
| View original record | Contd. -3- EFC/TS.12.22. Further points that have occurred to us. (1) The emergency fuse on the Goshawk system as at present need to be of large current carrying capacity, so as only to go in extreme… | ||
| Scan64 | Wiring diagram for a semi-earthed electrical system. | ||
| View original record | DIAGRAM OF SEMI-EARTHED ELECTRICAL SYSTEM IGNITION LAMPS LAMPS HORN BODY LIGHTS ETC. DISTR NG FUSES INSP LAMP PLUG SOCKET CHARGING SWITCH DYNAMO + F - Sh/ Se. CUT-OUT STARTER MOTOR EARTHING OR… | ||
| Scan65 | Test report on the durability and performance of a Bijur type Bendix starter after 8,000 operations. | ||
| View original record | To R. from Hs. c. to C.J. and E.J. c. to Da. c. to EY. ORIGINAL. BIJUR TYPE BENDIX. X3587/X3592 We have made a test with the Bijur Bendix on a car. We have operated the starter approximately 8,000… | ||
| Scan66 | Performance and weaknesses of spring shackles, comparing C.H.N.S. bushes to bronze and highlighting wear issues. | ||
| View original record | Da. from Hs. ORIGINAL. Hs6/LG6.12.22. RE. SPRING SHACKLES. X2628 X4261 Da2/M4.12.22. We have had running for some time C.H.N.S. Bushes for springs instead of bronze. So far these are working very… | ||
| Scan67 | Information received on nickel iron alkaline batteries from Mr. Minchin of Peto & Radford Co. | ||
| View original record | To R. from EFC. " CJ c. Wd. ROY. c. Hm. EP. c. Hs. Da. c. E. By. c. PN. ORIGINAL EFC3/T7.12.22. X.3717 - NICKEL IRON ALKALINE BATTERIES Please find attached copy of information with regard to nickel… | ||
| Scan68 | Extract of a letter discussing the experimental state and numerous issues with nickel-iron batteries. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 Extract from M/C412. from Mr. G.R.N.Minchin ( Messrs. Peto & Radford) 4.12.22. With regard to the nickel iron business, about which you wrote me, we have got a… | ||
| Scan69 | Report comparing the performance of Alklum and Ni-Fe motor car batteries. | ||
| View original record | -2- Contd. We have spent some thousands of pounds during the last two years in tests, and as far as motor car batteries are condemned for the starting efforts, the "Alklum" and the "Ni-Fe" are… | ||
| Scan70 | Output performance and test results for the Goshawk dynamo. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. Hy. & EP. c. Rg. & Ds. ORIGINAL. EFC2/T7.12.22. X.4383 - GOSHAWK DYNAMO OUTPUT PERFORMANCE. Herewith please receive photostat copy of some output and field current… | ||
| Scan71 | Dynamo performance, comparing machines and detailing a new test rig setup. | ||
| View original record | Contd. -2- EFCB/T7.12.22. armature. a thou. or two of eccentricity or error on the air gap making quite an appreciable difference). Curves of the falling away of the field current with increasing… | ||
| Scan72 | Graph showing the output performance curves of Goshawk and Lucas E.875 dynamos versus RPM. | ||
| View original record | Output Curves of R.R. Goshawk Dynamos and Lucas E.875 dynamo as found on old bench rig. AXIS LABELS: Y-Axis: AMPERE OUTPUT X-Axis: DYNAMO R.P.M. Top Y-Axis: OPERATING VOLTAGES. [Hot] CURVE LABELS: -… | ||
| Scan73 | Improved spring arrangement for the 40/50 HP chassis throttle control. | ||
| View original record | To E. from Hs. ORIGINAL Hs5/LG8.12.22. 40/50 CHASSIS THROTTLE CONTROL. X2768 We are sending to you the improved arrangement of spring to control the throttle on the 40/50 HP. You might at some time… | ||
| Scan74 | Rattles from the magneto drive's serrated joints on 20 HP cars and a proposed solution. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to EY. ORIGINAL Hs4/LGS.12.22. X4327 MAGNETO DRIVE FOR 20 HP. CARS. When running with the magneto fitted, we get slight rattles from the serrated joints.… | ||
| Scan75 | Recommendation to revert to fixed bushes for springs on the 20 HP model due to wear and repair difficulties with floating bushes. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP180865 ORIGINAL. To R. From Hs. c. to GJ. c. to R. c. to Da. c. to BY. Hs3/LGS.12.12.22. BUSHES FOR SPRINGS ON 20 HP. X4261 We recommend that we should revert to the… | ||
| Scan76 | Test report detailing failures of a modified 20 HP steering support, stays, and aluminium steering boxes. | ||
| View original record | To R. From Hs. c. to CJ. c. to K. c. to Ds. c. to BY. ORIGINAL Hs7/LGS.12.22. 20 HP. STEERING SUPPORT. X4264 Tests on the bumping rig have proved that the modified steering support for the 20 HP. is… | ||
| Scan77 | Analysing the sources of vibrations and 'boom' in a limousine trials car, focusing on engine, axle, and exhaust note frequencies. | ||
| View original record | R.R. 235a (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM DA/EV. c.c. to DA & SP. [STAMP] ORIGINAL DA/EV3/M12.12.22 Hs [STAMP] RECEIVED DEC 27 1922 RE. LIMOUSINE TRIALS CAR. X3730 Thank you for your… | ||
| Scan78 | Vehicle vibrations, resonance, and body construction to mitigate undesirable noise. | ||
| View original record | (2) R R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 even then we think there would be no tangible results since the exhaust note would probably be in a higher scale. The main wave can have a frequency… | ||
| Scan79 | The causes and prevention of 'roof booming' in vehicle bodies. | ||
| View original record | R.R. 235A (100 T) (S H. 159 11-8-20) G. 2800 (3) R example the Maythorn saloon)In the older days of luggage be- ing carried on the roof booming did not seem to be so prono- unced due to the roof… | ||
| Scan80 | Stress test performed on a steering box and a change in material to aluminium bronze. | ||
| View original record | contd:- -2- Sometime ago we carried out a test to see if we could cause a steering box to fail by bolting it to an over-size tube - we went up to .005" oversize and tightened the bolts until they… | ||
| Scan81 | Proposal for a friction drive scheme using spring-loaded bevelled rings to achieve quieter engine gears. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. ORIGINAL. Hs2/LG13.12.22. ENGINE GEARS. X4247 X4569 It has been realised for some time that the chief difficulty in obtaining quiet gears is to get the camshaft to… | ||
| Scan82 | Continued note discussing the necessity of having tight gears and thick oil. | ||
| View original record | contd:- -2- this forces us into having tight gears, thick oil etc. Hs. | ||
| Scan83 | Experiments to measure temperatures attained by the Goshawk ignition coil. | ||
| View original record | To R & E. from EFC. c. C.J. & FN. c. Hy & EF. c. Fg: & Ds. EFC2/T14.12.22. ORIGINAL. X.4079 - GOSHAWK IGNITION COIL EXPERIMENTS In accordance with your R2/M30.11.22, we have now made some experiments… | ||
| Scan84 | Report page detailing temperature tests on various engine coil configurations, including insulated and uninsulated setups. | ||
| View original record | Contd. -2- EFC2/T14.12.22. Please find attached photostat copy of temperature/time curves obtained in this connection for:- (1) A coil in stabalite case mounted on the engine without insulation. (2) A… | ||
| Scan85 | Report comparing the performance of various ignition coils, including bakelite and Goshawk types, under different test conditions. | ||
| View original record | Contd. -3- EFC2/T14.12.22. position. The experimentally constructed coil with increased size of core and absence of hedgehogging is not yet ready for test but further comparative tests have been made… | ||
| Scan86 | Comparison of performance between improved bakelite, 40/50, and stabalite ignition coils. | ||
| View original record | Contd. -4- Improved bakelite coil as above described on cylinder head 40/50 coil on cylinder head .035 (average of 2 comparisons on different days). In this condition the improved bakelite coil is… | ||
| Scan87 | Comparison report on the performance of a 40/50 standard coil versus Mr. Brock's No.1 coil. | ||
| View original record | 6.12.22 COIL COMPARISON - 40/50 STANDARD AND MR. BROCK's No.1 COIL Tests made on 3-G.11. K.L.G. sparking plugs fitted with gaps set at .030". Low tension make and break set at .010" when fully open.… | ||
| Scan88 | Graph showing temperature time curves for a Goshawk engine ignition coil under various test conditions. | ||
| View original record | TEMPERATURE TIME CURVES OF IGNITION COIL ON GOSHAWK TEMPERATURE (°C) TIME (MINUTES) ① COIL IN STABALITE CASE. ② COIL IN BAKELITE CASE, UNINSULATED, STD POSITION. ③ SAME AS IN 2 BUT INSULATED. ④ SAME… | ||
| Scan89 | Correction regarding the ampere turns for the 'Seagull' dynamo yoke. | ||
| View original record | R. from EFC. ORIGINAL EFC1/LG20.12.22. X.4010. "SEAGULL" DYNAMO. Answering your R2/M13.12.22. The ampere turns for the yoke should have been 73 and not 173, the 1 having crept in in error - the total… | ||
| Scan90 | The components and operational principles of a post-war R. Bosch electrical system received for examination and testing. | ||
| View original record | To R & E. from EFC. c. CJ. & FN. c. Ry. & EP. c. Rg. & Dn. c. Not. ORIGINAL EFC1/T20.12.22. X.4562 - POST WAR R. BOSCH ELECTRICAL SYSTEM. We have lately received for examination and test an R. Bosch… | ||
| Scan91 | Continued description of the operation of the dynamo regulating range, cutout unit, and solenoid-operated starter motor. | ||
| View original record | -2- Contd. of the carbon contacts. In the second stage of the regulating range which goes up to any speed at which the dynamo is driven, the field winding is momentarily connected in parallel with the… | ||
| Scan92 | Description of the starter switch, switchbox functions, and various lighting and magneto connections. | ||
| View original record | Contd. -3- EFCL/T20.12.22. is higher, i.e. when the engine has fired and is endeavouring to turn the motor still faster; the voltage on the solenoid main coil and auxiliary field winding being then… | ||
| Scan93 | Description of the car's electrical system, dynamo charging indicators, and fuse arrangements. | ||
| View original record | *Contd. -4- EFC1/T20.12.22. If therefore the car is running and the red lamp is lighted, this indicates that for some reason the dynamo is not charging. When the car is stationary the lamp is lighted,… | ||
| Scan94 | Wiring diagram for a Post-War Bosch lighting and starting system. | ||
| View original record | [ "POST - WAR BOSCH LIGHTING AND STARTING SYSTEM.", "DYNAMO", "FIELD", "RESISTANCE", "REGULATOR", "SE.", "SH.", "CUT-OUT", "BATTERY", "SWITCHBOX", "STARTER PUSH BUTTON", "LOCK SWITCH", "RED LAMP",… | ||
| Scan95 | Proposing a visit to W.W. and outlining the substitution of a 40/50 HP car for a Goshawk-11. | ||
| View original record | ORIGINAL To R. from Hs. c. to E. c. to Da. HsS/LG27.12.22. X1898 We propose coming to W.W. arriving Tuesday morning next. We do not think 4-Goshawk-11 will be completed by the Coachbuilders, in that… | ||
| Scan96 | Engine bench tests conducted on exhaust valves for a 20 HP chassis to investigate failures. | ||
| View original record | To R. from HS. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL. EXHAUST VALVES FOR 20 HP. CHASSIS. X4238 We carried out a number of tests on the engine bench test in order to reproduce the failure of… | ||
| Scan97 | Analysis of engine pre-ignition, its effect on exhaust valves, and ongoing tests on various engines. | ||
| View original record | contd:- -2-NACXXXXXXXXX We know from past experience that it is necessary for the pre-ignition to start at a certain point on the compression stroke in order to produce the worst results, for… | ||
| Scan98 | Diagnosis of an engine problem, identified as pre-ignition potentially caused by over-heating or fuel mixture. | ||
| View original record | contd:- -3- They go in the same manner as the sample 20 HP. car which was sent to S.W. It is most difficult to explain the cause because the engines have been put through the most severe tests and… | ||
| Scan99 | Requesting a No.4 Goshawk 20.HP car for an advertisement photograph. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 TO HS. FROM R. c. to OJ. BJ. EP. ORIGINAL RECEIVED DEC 29 1922 R7/M27.12.22. RE. NO.4. GOSHAWK. X4219 BJ. wishes, for advertisement purposes, a… | ||
| Scan100 | American production procedures, focusing on chassis standardisation and issues with the Bosch battery ignition system. | ||
| View original record | The cars EXH. HEATED THROTTLE DERBY POLICY REF DERBY & SPRINGFIELD PRODUCT TO B.J. FROM R. c. to C.J. WOR. c. to HY. HS. c. to UY. OF. RE. AMERICAN PROCEDURE. STAMP: ORIGINAL RECEIVED DEC 29 1922… | ||