Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Suitable materials for piston ring stops. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-26) G. 2800 TO HS. FROM R. Copy to BJ. " RG. " BY. ORIGINAL R2/M1.7.26. PISTON RING STOPS. X2103 /2603 ring Piston/pins should be in some material having as nearly as… | ||
| Scan002 | Unsuitability of taper bolts for securing the flywheel to the crankshaft flange. | ||
| View original record | ~~TO BY.~~ FROM AJS. ORIGINAL AJS1/M1. 7. 26. Copy to - HS. " " - WS. " " - HS/RHC. X8010 X9300 RE. EAC. CLUTCH. We note on arrangement drawing G73748., that taper bolts are shewn for securing the… | ||
| Scan003 | Responsibility for coachwork modifications and suggesting improvements to body construction methods. | ||
| View original record | TO LHS. (crossed out) FROM R. C. to BJ. (crossed out) WOR. (crossed out) " DA. (crossed out) HS. " G. (crossed out) ORIGINAL (stamp) 7-EX. - BARKER-BEATONSON ALL-WEATHER USED BY ME IN FRANCE.… | ||
| Scan004 | Modifications to the Phantom front axle to improve its strength. | ||
| View original record | TO BY. FROM DA. C. to BJ. HS. ORIGINAL DA1/M1.7.26. PHANTOM FRONT AXLE. X8420 Herewith we send N. scheme 2221. on which we have indicated the modifications to the front axle for still further… | ||
| Scan005 | Wire confirmation regarding the return of an experimental chassis to Derby. | ||
| View original record | CONFIRMATION OF WIRE. ORIGINAL HIVES. ROYCAR. DERBY. WEST WITTERING. 2. 7. 26. X8770 R. WISHES DODD TO DRIVE SEVEN EX. CHASSIS BACK TO DERBY TOMORROW EVENING IF YOU AGREE PLEASE MAKE ARRANGEMENTS WITH… | ||
| Scan006 | Listing 15 improvements for testing on the 7-EX Chassis in France. | ||
| View original record | R.R. 285A (100 T) (S.H 159. 11-8-20) G. 2800 TO HS. FROM R. C.c to BJ. LHS. BY. PN. ORIGINAL 7-EX. CHASSIS. X8992 X8770 X770 The following recent improvements are for testing in France next winter:-… | ||
| Scan007 | Drawings for ignition controls, advance curves, and an ignition differential mechanism. | ||
| View original record | FROM E. Copy to HS. ORIGINAL E2/M3.7.26. x7685 EAC. 7. IGNITION CONTROLS AND ADVANCE CURVES. We send you herewith drawings LeCs. 2262. & 2265., dealing with the above. The former drawing is only a… | ||
| Scan008 | Ignition controls, advance curves, and associated drawings LeCs. 2262 & 2265. | ||
| View original record | TO BY FROM E. Copy to - BJ " EFC. ORIGINAL E2/M3.7.26. EAC. 7. IGNITION CONTROLS AND ADVANCE CURVES. X4685 We send you herewith drawings LeCs. 2262. & 2265., dealing with the above. The former drawing… | ||
| Scan009 | Methods for carburettor throttle heating using super-heated water or steam to avoid a valve in the exhaust. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. "CC TO BJ. BI. " " PN. GWD. ORIGINAL re. CARBURATION - THROTTLE HEATING. OBJECT: TO AVOID VALVE IN EXHAUST. R1/M5.7.26. X6080 X8230 We… | ||
| Scan010 | Proposal to adapt the Phantom switchbox for battery and magneto ignition, including a diagram of new switch markings and functions. | ||
| View original record | TO-MR. [ILLEGIBLE] FROM R. C. to [ILLEGIBLE] ORIGINAL R2/M5.7.26. re. PHANTOM SWITCHBOX X8730 X8791 With a view to adapting the Phantom switch-box to run on battery and magneto ignition with no… | ||
| Scan011 | Design proposals for a lighter Phantom engine valve rocker cover. | ||
| View original record | TO BY. FROM E. C. to BJ. HS. ORIGINAL LIGHTER PHANTOM ENGINE - VALVE ROCKER COVER. SCHEME 763. The scheme for the lighter cover that we have had up till now does not promise to be very desirable owing… | ||
| Scan012 | Fitting of hydraulic shock dampers on the rear of a vehicle. | ||
| View original record | TO DY. FROM DA. C. to HS. ORIGINAL DA4/M6.7.26. X7920 X235 X9520 EAC. 1. HYDRAULIC SHOCK DAMPERS ON REAR. We have looked into the question of fitting hydraulic shock dampers to the rear of the above… | ||
| Scan013 | Scheme to reverse the carburetter mixture control and alter the ignition controls. | ||
| View original record | TO HS. FROM E. C. to HS. ORIGINAL E2/M6.7.26. EAC.7. CARBURETTER MIXTURE CONTROL. (Handwritten: X7080 / X8071D [struck through] / X8685) We send you herewith drawing LeC. 2266. giving a scheme for the… | ||
| Scan014 | Modifications to 20HP undershields to mitigate mud splashing and increase road clearance. | ||
| View original record | TO BY. FROM E. C. to BJ. HS. ORIGINAL E4/M6. 7. 26. 7 JUL 1926 X615 XS290 20HP. UNDERSHIELDS. Referring to your memo. BY/CCH20/G29626., the schemes we have sent you are supposed to deal with the… | ||
| Scan015 | Drawing LeC. 2267 for a lightened aluminium cylinder head water outlet for the Phantom engine. | ||
| View original record | TO BY. FROM E. C. to BJ. HS. ORIGINAL E3/M6.7.26. LIGHTER PHANTOM ENGINE. *X8050 Referring to the scheme you sent us for the cylinder head water outlet made in aluminium, we send you herewith drawing… | ||
| Scan016 | Mr. Royce's remarks on the manufacturing and machining process for the EAC clutch arrangement. | ||
| View original record | TO BY. FROM AJS. ORIGINAL AJS1/M7.7.26. Copy to - HS. EAC. CLUTCH ARRANGEMENT - G.73748. X8300 Mr. Royce remarks as follows in reference to your BY6/H5726. dealing with the above:- He requires a true… | ||
| Scan017 | Recommending lead bronze bushes and stainless steel to prevent parts from seizing and rusting. | ||
| View original record | TO HS. RG. DY. E. DA. } FROM R. (Note: RG., DY. E. and DA. are crossed out) Copy to - BJ. CWB. [STAMP] ORIGINAL [RED STAMP] RUSTY & DRY PARTS WHILE STANDING AT COACHBUILDERS. [Handwritten] X8430 X8370… | ||
| Scan018 | Various fitting methods and stiffness issues of the 20HP steering column support. | ||
| View original record | R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL DA2/M7.7.26. TO HS. FROM DA. Copy to -- BY. 20HP. STEERING COLUMN SUPPORT. X5730 With reference to HSL/LG5726., the information that we have is… | ||
| Scan019 | From 'E' to 'HS' conveying Mr. Royce's opinion to not test a jacket heating system for Phantom engine carburetter throttles. | ||
| View original record | TO HS. FROM E. [Strikethrough: Copy to [REDACTED] R.I.] CARBURETTER THROTTLE HEATING ON PHANTOM ENGINES. E2/M10.7.26. [Handwritten, Strikethrough: X8080] [Handwritten: X8230] Referring to your report… | ||
| Scan020 | Modifications to the front axle forging and brake gear for future production. | ||
| View original record | TO EY. FROM DA. Copy to BJ. HS. ORIGINAL EAC. 7.& 8.FRONT AXLE. X7520 X7420 2230. Herewith we send N. scheme/shewing further modifications to the axle forging and parts of the brake gear, which Mr.… | ||
| Scan021 | Approval of schemes for float chamber cover locking devices for Phantom & 20HP models. | ||
| View original record | FROM E. C. to HS. ORIGINAL E1/M12.7.26. FLOAT CHAMBER COVERS- X8080 [handwritten and struck through] X5080 [handwritten] PHANTOM & 20HP. Please note Mr. Royce has approved of schemes 759. and 760.,… | ||
| Scan022 | Requesting the urgent production of a plate for reinforcing the scuttle armature on specific vehicles. | ||
| View original record | TO HS.) FROM R. (RY.) C. to BJ. LHS. ORIGINAL SCUTTLE REINFORCEMENT. X5430 X4613 X5500 DA/EV. is sending a drawing of a plate we want you to make as quickly as possible for reinforcing the scuttle… | ||
| Scan023 | The 20HP steering column support and its application on cars with small columns and isolated scuttles. | ||
| View original record | TO BY. FROM DA. Copy to - HS. 20HP. STEERING COLUMN SUPPORT. X5430 With reference to BY/CGH5/H12726., we have heard from LHS. and enclose a copy of his reply. We consider from our information that you… | ||
| Scan024 | The implementation of a self-supporting 20HP steering column from a coachbuilding perspective. | ||
| View original record | C O P Y. DA. FROM LHS. LHS7/EBN9.7.26. 20HP. STEERING COLUMN. In reply to your memo. DA1/M8.7.26. the C.S.C. are anxious to see the self-supporting column brought into use as soon as possible from a… | ||
| Scan025 | The superior steering and riding of the 10-EX sports car, with suggestions for improvements to other models. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. ORIGINAL R6/M12.7.26. C. to BJ. WOR. BY. EP. LHS. DA. E. CWB. PN. STEERING, ETC, OF BLUE SPORTS CAR - 10-EX. X8430 X8770 X8410 Occasionally… | ||
| Scan026 | Investigation into the causes and potential solutions for overheating in the interior of closed Phantom cars. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS. FROM DA/EV. c. to LHS. ORIGINAL DA/EV1/M14.7.26. X8230 X5908 X3003 X8109 RECEIVED OVERHEATING IN THE INTERIOR OF CARS. For some while now the C.S.C.… | ||
| Scan027 | Suggestion for an experiment to measure heat sources affecting the floorboards of a car, including a sketch of a thin steel shield. | ||
| View original record | (2) from reaching them - (see sketch.) THIN STEEL. In order that we may further discuss the subject with R. we would like to have your views, and suggest that it might be wise for you to try… | ||
| Scan028 | Chassis enquiry and the supply of stiffeners and subframe supports to be fitted. | ||
| View original record | TO HS. FROM DA/EV. ORIGINAL DA/EV1/M15.7.26. 7-EX. X8770 X8570 X8380 R. was enquiring yesterday about his chassis, and wonders whether you have it in Derby, and what you have got to do to it. We shall… | ||
| Scan029 | Proposed scheme (N.Sch.2233) to stiffen 'jellying' scuttles on Phantom models. | ||
| View original record | to EF from DA/EV. copy to BJ. HS HS ORIGINAL ~~x7500~~ ~~x8500~~ ~~x9500~~ RE JELLYING SCUTTLES. We send herewith N.Sch.2233. shewing the proposed scheme of stiffening the scuttle armature at the… | ||
| Scan030 | New method for lubricating the off-side bearing of the clutch operating shaft. | ||
| View original record | TO BY. FROM AJS. Copy to - BJ. HS. ORIGINAL AJS2/M16.7.26. EAC. CLUTCH OPERATING SHAFT LUBRICATOR X8300 X8980 We send herewith LeC. 2264. shewing a method of lubricating the off-side bearing of clutch… | ||
| Scan031 | Scheme for bronze bushes in the cast iron exhaust cutout nozzle for the Phantom model. | ||
| View original record | TO BY. FROM DA. Copy to - DJ. HS. ORIGINAL DA1/M16.7.26. PHANTOM - EXHAUST CUTOUT. X.8740 Replying to BY/CGH6/H12726., we enclose N. scheme 2237 shewing bronze bushes in the cast iron cutout nozzle.… | ||
| Scan032 | Adaptation of the forward support bracket for rear hydraulic shock dampers. | ||
| View original record | TO BY. FROM DA. Copy to -- HS. ORIGINAL DA2/M16.7.26. EAC. 1. HYDRAULIC SHOCK DAMPERS ON REAR. With reference to BY/CGH11/G12726., we enclose N. scheme 2235. shewing a slight adaptation of the forward… | ||
| Scan033 | Proposed wings, drawings, and axle modifications for a Sports Phantom 10-EX. | ||
| View original record | TO BY.) FROM DA/EV. HS.) Copy to BJ. ORIGINAL DA/EVL/M17.7.26. X8770 X8380 X8390 X8600 re. SPORTS PHANTOM - 10-EX. We send herewith N. scheme 2238. shewing the proposed wings we will fit to this car… | ||
| Scan034 | Suitability of rubber component dimensions for hydraulic shock dampers. | ||
| View original record | R.R. 235A (100 'I) (S H. 159 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DA2/M17.7.26. X235 X8520 HYDRAULIC SHOCK DAMPERS. With reference to HS/RM1/LG13726., in shewing the clearance we did on N. scheme… | ||
| Scan035 | Proposal for stiffening the front scuttle armature with a cast dash, to be tested on vehicle 12-EX. | ||
| View original record | TO RY. FROM DA. Copy to - HS. ORIGINAL DA3/M17.7.26. X7380 X8500 X7500 X7940 SCUTTLE ARMATURES WITH CAST DASHES. Herewith we send N. scheme 2236. shewing the proposed method of stiffening the front… | ||
| Scan036 | Requesting deflection measurements on Phantom and 20HP frames to analyse body distortion. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA1/M19.7.26. FRAMES. X8380 / X5380 In connection with coachwork it would be of interest to us to have a simple measurement on the Phantom and 20HP. frames if you could find… | ||
| Scan037 | Correction and alteration of a bow spring type control model for a relief valve. | ||
| View original record | ORIGINAL TO BY FROM E. Copy to - HS. E2/M19.7.26. BOW SPRING TYPE OF CONTROL FOR RELIEF VALVE. V8205 In reply to your memo. BY9/H15726., it was never intended that one side of the spring bow should… | ||
| Scan038 | Agreement to test 2000 lb springs inside the steering tube for the Phantom model. | ||
| View original record | TO HS. FROM DA. Copy to BY. ORIGINAL 23/7/26 DA1/M22.7.26. PHANTOM - SPRINGS INSIDE STEERING TUBE. X8450 It was agreed yesterday that you should try 2000 lb. springs in the side steering tube, both… | ||
| Scan039 | Test drive report on the experimental car 12-EX, detailing steering, engine, and vibration issues. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. Copy to - BI. (struck through) " WOR. (struck through) " RY. (struck through) ORIGINAL 12-EX. X7940 (struck through) X7430 (struck through)… | ||
| Scan040 | Petrol gauge issues on the 12-EX, covering weak washers and a request for a new dial design. | ||
| View original record | [REDACTED] FROM DA. Copy to - HS. ORIGINAL DA2/M22.7.26. 4-0 28/1/26 PETROL GAUGE. V3896 Y7460 The petrol gauge on 12-EX. was fitted with cork washers on either side of the glass which were found to… | ||
| Scan041 | Efficiency of scavenger pumps by reducing their speed and altering their dimensions. | ||
| View original record | TO HS/RM. FROM R. ORIGINAL R2/M22.7.26. re. SCAVENGER PUMPS. Is it possible that these pumps could be driven at a slower speed. This idea is taken from the fact that we generally have more oil… | ||
| Scan042 | Requesting a diagram of the brake leverages to investigate an issue with excessive leverage. | ||
| View original record | TO HS. FROM DA. ORIGINAL 23/7/26 DA3/M22.7.26. EAC.1. BRAKE GEAR. X9940 X9570 X9330 With reference to the brake operation on this car the leverage appears to be too much on both hand and foot. Would… | ||
| Scan043 | Reminding to try the wheel balancing scheme shewn on N. scheme 2048, to avoid the appearance of three masses. | ||
| View original record | TO BY. FROM DA. Copy to - HS. ORIGINAL 4 23/1/26 DA4/M22.7.26. WHEEL BALANCING. V401 This is to remind you that it is desired to try the wheel balancing scheme shewn on N. scheme 2048., the object… | ||
| Scan044 | Proposal from Mr. Royce to use Kelmet metal bushes to prevent squeaking on the Phantom clutch. | ||
| View original record | TO BY. [crossed out] FROM AJS. C. to - BJ. [crossed out] HS. ORIGINAL [stamp] 23/7/26 [handwritten] AJS1/M22.7.26. PHANTOM CLUTCH. X8300 [handwritten, crossed out] X7300 [handwritten] In order to… | ||
| Scan045 | Internal memorandum regarding a comparison of headlamps, recommending Carl Zeiss over the current Lucas lamps. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL 9: 30 DA/EV1/M23.7.26. TO HS. FROM DA/EV. re. HEAD LAMPS. 26/sr X8800 Referring to HS/RM2/LG19726., concerning the lamps on 10-EX., we know of no… | ||
| Scan046 | Confidential memo about a cost-sharing proposal with Hoopers for two experimental car bodies. | ||
| View original record | TO BJ. FROM R. C." to HS. BY DA/EV ORIGINAL SECRET AND CONFIDENTIAL. BODIES. X7830 X5930 R1/M23.7.26. I understand that Hoopers will bear 50% of the cost of two bodies for our next experimental cars -… | ||
| Scan047 | New balance weight scheme for 20HP and 40/50 steel artillery wheels. | ||
| View original record | ORIGINAL TO BY, FROM DA. C. to BJ. HS. DA1/M23.7.26. 20HP. - STEEL ARTILLERY WHEELS. x6586 x5810 With further reference to BY/CGH5/H7726., we send herewith N. scheme 2240., shewing the original… | ||
| Scan048 | Modifications for fitting hydraulic shock dampers on the rear of an EAC 7 chassis. | ||
| View original record | TO BY. FROM DA. C. to BD. HS. ORIGINAL DA2/M23.7.26. EAC. 7. HYDRAULIC SHOCK DAMPERS ON REAR. X7520 X235 Herewith we send N. scheme 2231. shewing the hydraulic dampers fitted to the rear of the EAC.… | ||
| Scan049 | Modifications to the rear brake operating gear and frame gussets to allow for the fitting of hydraulic shock dampers. | ||
| View original record | TO FROM DA. C. to HS. ORIGINAL DA3/M23.7.26. EAC.7. REAR BRAKES. Y7360 Y7380 Herewith we send N. scheme 2232. shewing the modifications to the rear brake operating gear and frame gussets, which are… | ||
| Scan050 | Modifications to the rear brake camshaft and toggle gear. | ||
| View original record | TO BY. FROM DA. C. to BJ. HS. ORIGINAL DA4/M23.7.26. EAC.7. REAR BRAKES. X7360 We send herewith N. scheme 2234. shewing the promised modification to the rear brake camshaft and toggle gear required by… | ||
| Scan051 | Modification to the rear supports of the Phantom & EAC.8 subframes, referencing schemes 2241 and 2239. | ||
| View original record | TO ~~BY~~. FROM DA. C. to ~~HS~~. ORIGINAL DA5/M23.7.26. X8380 ~~X7380~~ PHANTOM & EAC.8. SUBFRAMES. We send herewith N. scheme 2241. shewing a modification to the rear supports of the subframe on the… | ||
| Scan052 | Print showing a potential middle support for a subframe and a modification to the front support. | ||
| View original record | TO BY. FROM DA. C. to --. HS. ORIGINAL DA7/M23.7.26. EAC.7. SUBFRAME. X7380 We send herewith print of N.sch. 2207., on which we have marked in pencil the position of a middle support for the subframe… | ||
| Scan053 | Modification to the frame cross members to resolve a fouling issue with the rear spring front anchorage. | ||
| View original record | TO BY. FROM DA. C. to -BJ, HS. ORIGINAL DA8/M23.7.26. EAC.7. - FRAME CROSS MEMBERS. X7380 With reference to the top bolt of the rear spring front anchorage fouling the subframe, we send herewith N.… | ||
| Scan054 | Mr. Royce's desire to expedite the Goshawk I starter gear due to issues with the Phantom starter. | ||
| View original record | TO HS. FROM AJS. Copy to BY ORIGINAL AJS2/M23.7.26. 2 X8650 GOSHAWK 1. - re. STARTER X4250 9.30 26/7 In view of the troubles with the existing sequence starter on Phantom, Mr. Royce is extremely… | ||
| Scan055 | Design flaw in a model of a bow spring type control for a relief valve. | ||
| View original record | TO BY/CGH. FROM E. Copy to - HS. ORIGINAL BOW SPRING TYPE OF CONTROL FOR RELIEF VALVE. X8205 In reply to your memo. BY/CGH10/K22726., the two sides of the bow on the model submitted were not equal in… | ||
| Scan056 | Alterations to the Phantom exhaust pipe and silencer to resolve expansion issues. | ||
| View original record | TO BY FROM E. C. to DJ. HS. ORIGINAL E4/M24.7.26. PHANTOM EXHAUST PIPE AND SILENCER. Y8230 We send you herewith drawing LeC. 2275. shewing the alterations proposed to overcome the expansion trouble on… | ||
| Scan057 | Request for the results of experiments with the steel spring in the servo operating gear for the Phantom and 20HP models. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA2/M12.8.26. re. FLEXIBILITY IN SERVO - PHANTOM AND 20HP. X7320 X5370 We are wishing to hear the results of exper-iments with the steel spring in the servo operating gear,… | ||
| Scan058 | Mr. Royce's interest in investigating new front axle designs, referencing Lancia and Sizaire. | ||
| View original record | H. TO HS. FROM DA. [STAMP] 16 AUG 1926 REC [STAMP] ORIGINAL DA2/M13.8.26. FRONT AXLE CONTROL. [Handwritten] X4048 [Handwritten] X8420 Mr. Royce wished us to tell you that he is interested in the… | ||
| Scan059 | From R. to EFC. investigating a failure to engage with a sequence starter motor. | ||
| View original record | R.R. 235A (100 T) S.H. 159 11-8-20) G. 2500 TO EFC. FROM R. ORIGINAL. Copy to Mr. H.S. re. SEQUENCE STARTER. X 7650 X Regarding the failure to engage I cannot see how this can happen if the teazer… | ||
| Scan060 | Schemes for a new framed instrument patch, including details on various instruments and dial aesthetics. | ||
| View original record | TO BY. FROM DA. C. to HS. ORIGINAL DA/EV3/M13.8.26. FRAMED INSTRUMENT PATCH. X7530 We send herewith N. scheme 2224, shewing the arrangement of a framed instrument patch with interior lighting, also N.… | ||
| Scan061 | Acquisition of a 20HP Lorraine car for competitive analysis. | ||
| View original record | TO BJ, FROM R. Copy to - HS. [STAMP: ORIGINAL] [STAMP: RECEIVED 18 AUG 1926] R3/M13.8.26. re. 20HP LORRAINE. [Handwritten: X3588] I think we ought to have one of these cars as they did so well in the… | ||
| Scan062 | Test drive report providing feedback on a High Compression 20HP car, listing five specific items for alteration. | ||
| View original record | TO DA.) FROM R. HS.) Copy to BJ ORIGINAL AUG 1926 RECEIVED R4/M13.8.26 X5260 X5770 HIGH COMPRESSION 20HP. This car is good in many ways but not for closed cars, only for open bodywork, such as the… | ||
| Scan063 | Outlining scheme 2215 for mounting steel artillery wheels on the Phantom model with a new axle. | ||
| View original record | TO DY. (struck out) FROM DA. C. to BJ. (struck out) HS. ORIGINAL DA1/M14.8.26. X4586 X7420 X7810 STEEL ARTILLERY WHEELS ON PHANTOM WITH NEW AXLE. Herewith we send N. scheme 2215. shewing the method of… | ||
| Scan064 | From R. to EFC. querying the progress of electrical experiments on coils, points, and condensers. | ||
| View original record | R.R. 235A (100 T) (S H. 159 1-8-20) G. 2800 ( RECEIVED ) TO EFC. FROM R. ORIGINAL 18 AUG 1926 R1/M16.8.26. 2 VU275 X2894 I should be very glad to know if you are sufficiently forward with your… | ||
| Scan065 | Experiment observing valve rotation and oscillation in Phantom and 20HP engines to investigate valve seat erosion. | ||
| View original record | TO R. FROM E. C. to HS. re. VALVE SEAT EROSION. X4005 X8060 We performed a simple experiment on the two car engines at WW. to observe if, and how, the valves rotated, by marking the upper valve spring… | ||
| Scan066 | 'Phantom Steering', attributing the cause to balloon tyres and proposing hydraulic damping as a solution. | ||
| View original record | R.R. 235A (100 T) S.H. 159. (1-8-20) G. 2800 TO HS. FROM R. Copy to BS. [Struck out] " WCR. [Struck out] " DY. [Struck out] " DA. [Struck out] [STAMP: ORIGINAL] [STAMP: RECEIVED AUG 1926]… | ||
| Scan067 | Determination of the optimal induction pipe ramming length for high M.E.P. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS.) FROM R. ch to BJ. WOR. DY. RECEIVED 20 AUG 1926 ORIGINAL R1/M19.8.26. X3874 X2481 B3824 X2480 HIGH M.E.P. - RAMMING ETC. Assuming a 2 1/2" bore… | ||
| Scan068 | Causes of pre-ignition and valve erosion, and proposing a test. | ||
| View original record | R.R. 235A (100 T) (S.H. 159 11-8-20) G. 2800 TO HS.) FROM R. C. to DJ. WOR. BY. ORIGINAL PRE-IGNITIONS Ho R2/M19.8.26. 20 AUG 1926 X4410 X4005 X4587 These we understand are caused by hot valves. Do… | ||
| Scan069 | Valve erosion in a Curtiss engine and suggesting methods to investigate the cause. | ||
| View original record | TO HS.) FROM R. C. to - BJ. WOR. BY. ORIGINAL TR 20 AUG 1926 VALVE EROSION - CURTISS RECEIVED R3/M19.8.26. X3366 XL605 We were rather surprised to find this just as bad on the Curtiss engine, which… | ||
| Scan070 | Valve movement, its causes like spring action, and proposals to prevent valve rotation. | ||
| View original record | TO HS.) FROM R. RG.) Hs 20 AUG 1926 (RECEIVED) ORIGINAL R4/M19.8.26. X.4005 X3822 X.8060 VALVE MOVEMENT We believe this takes place, as suggested by E., by the action of the spring. It would be going… | ||
| Scan071 | Steering troubles and the proposed addition of friction to the pivots. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA1/M20.8.26. 12-EX. STEERING. x7430 x7420 We have now seen Hancock's daily reports about the steering troubles on this car, but so far we have not seen any further comments.… | ||
| Scan072 | Steering performance, wobbles, and potential improvements for the 12-EX model. | ||
| View original record | TO HS. FROM R. C.c. to BJ. WCR. (crossed out) " DA. CWB. (crossed out) " BY. TN. (crossed out) " OY. (crossed out) ORIGINAL R1/M20.8.26. X7430 (crossed out) X235 X7420 re. STEERING ON 12-EX. I… | ||
| Scan073 | Outlining the parts and modifications required to complete a chassis and improve its riding qualities. | ||
| View original record | TO HS.) FROM R. C.c to BJ. WOR. DA. ORIGINAL re. E.A.C. 7. x740 It is understood that you consider the best way to improve the riding qualities is to push forward the above chassis, which we hope will… | ||
| Scan074 | The practice of pegging pipe unions in aluminium castings and Mr Royce's agreement to omit them. | ||
| View original record | TO EY. FROM E. ORIGINAL E1/M23.8.26. Copy to - " HS. " HS. re. PIPE UNIONS IN ALUMINIUM CASTINGS. X2170 Referring to your recent note in connection with pegging unions in aluminium castings, kindly… | ||
| Scan075 | Mr. Royce's disapproval of a Phantom steering scheme and the next task of designing a spring. | ||
| View original record | ORIGINAL TO HS. FROM DA. DA5/M26.8.26. PHANTOM STEERING. X8430 X7430 X8450 [Stamp Text: RECEIVED HS 27 AUG 1926] With reference to HS1/T21826., Mr. Royce does not quite approve of the scheme… | ||
| Scan076 | The arrangement of extra friction in the pivots of the new Phantom front axle. | ||
| View original record | TO BY. FROM DA. C. to -DJ. HS. ORIGINAL PHANTOM - FRICTION IN FRONT AXLE PIVOTS. X8420 Herewith we send N. sch. 2254. shewing the arrangement of extra friction in the pivots of the new front axle. The… | ||
| Scan077 | Modifying the 20HP front axle pivot friction scheme, referencing the Phantom model. | ||
| View original record | TO -BY-. FROM DA. C. to -BJ. HS. ORIGINAL DA2/M27.8.26. 20HP. - FRICTION IN FRONT AXLE PIVOTS. X5420 We should like to slightly modify the scheme for friction in the pivots on the lines of that now… | ||
| Scan078 | Scheme 2256, detailing modifications to the servo stop and brake linkage system. | ||
| View original record | TO BY. FROM DA. C. to -DJ. HS. ORIGINAL DA3/M27.8.26. EAC.7. SERVO STOP, BRAKE LINKAGE ETC. X7370 X7420 We send herewith N. scheme 2256. shewing the arrangement of the servo stop working below the… | ||
| Scan079 | Modification to the Phantom servo brake gear to prevent fouling of the balancing lever. | ||
| View original record | TO BY. FROM DA. C. to BJ. HS. PHANTOM SERVO BRAKE GEAR. X7370 X7420 With reference to the question of preventing the pin in the upper jaw of the balancing lever fouling the suspension link when put in… | ||
| Scan080 | Alterations to the mounting of the rear brake differentials and related components. | ||
| View original record | ORIGINAL TO FY. FROM DA. C. to BG. HS. DA5/M27.8.26. EAC.7. REAR BRAKE DIFFER-X7310 ENTIALS ETC. X7360 Herewith we send N. scheme 2250. shewing the mounting of the rear brake differentials on the… | ||
| Scan081 | Five detailed proposals for improving vehicle steering, concluding that the current slow steering setup is best for safety. | ||
| View original record | TO B.J. FROM R. C. to WOR. HS. CY. BY. DA. re. STEERING. We have endeavoured in all directions to improve the steering of our car, but no modifications have proved themselves so practical as the very… | ||
| Scan082 | Requesting updates on various experimental coachwork projects to arrange a programme with coachbuilders. | ||
| View original record | to HS from EV. HS ORIGINAL EV1/28.8.26. RE EXPERIMENTAL COACHWORK. X8830 X7830 X5830 We are asking the following questions, not with a view to pressing the work instructed, but rather to enable us to… | ||
| Scan083 | Potential engine modifications for the Phantom model, focusing on induction pipes, carburettors, and compression ratios. | ||
| View original record | TO HS/ACL. FROM R. Copy to BJ. RG. ORIGINAL (STAMP) PHANTOM INDUCTION PIPES ETC. Handwritten: X8070 XI XII I Handwritten (crossed out): X8050 X8080 RECEIVED (STAMP) 31 AUG 1926 (STAMP) We are very… | ||
| Scan084 | Authorisation to obtain and fit Carl Zeiss headlamps to a 10-EX Phantom-Barker sports car. | ||
| View original record | TO SG. FROM DA/EV. Copy to - HS. ORIGINAL DA/EV1/M30.8.26. 3 re. HEADLAMPS. X8800 X1357 X1369 In view of the desire to obtain a more efficient headlamp, we are authorised by R. to obtain a pair of… | ||
| Scan085 | Long-awaited production of a lighter Phantom engine with aluminium cylinders. | ||
| View original record | TO HS. FROM R. Copy to BJ. WOR. BY. ORIGINAL R5/M31.8.26. X8770 X8051 X8840 X8070 re. LIGHTER PHANTOM. We have been anxiously awaiting for many months the production of the Phantom engine with… | ||
| Scan086 | Modifications and experiments for a sequence starter mechanism, focusing on spiral angles and spring drives. | ||
| View original record | TO DFG. FROM R. C. to - BJ.WOR. HS.BY. re. SEQUENCE STARTER. ORIGINAL R1/M1.9.26. X7650 As far as I can see the chief thing which is wrong about this is the spiral angle. Mr. Stent is sending you… | ||
| Scan087 | Page two of a memo detailing modifications to a starter motor arrangement to resolve engagement and positioning issues. | ||
| View original record | (2) In conclusion I believe the above arrangement will avoid the two remaining faults of the semi-jamming in the engagement, and the thump at the final engagement. It is understood that the 20° angle… | ||
| Scan088 | Design critique and proposal for a valve seat driver and withdraw tool. | ||
| View original record | TO HS. Mr. Coverley, RG. BY. FROM R. ORIGINAL VALVE SEAT DRIVER & WITHDRAW TOOL. Copy to BJ. WCR. The one shewn on your sketch does not seem very satisfactory for many reasons: better design would be… | ||
| Scan089 | List of modifications for the Sports Phantom 10 EX chassis. | ||
| View original record | ORIGINAL to HS from EV. copy to MS. & Sz. HS RE SPORTS PHANTOM IO EX. X8830 X8170 We note that you do not propose to fetch IOEX from W.W. until about two weeks time when it will be replaced by 12EX.… | ||
| Scan090 | Specification of coachwork modifications for a Barker 'CJ' Sports Phantom on chassis IO.EX. | ||
| View original record | BARKER "CJ" SPORTS PHANTOM. CHASSIS IO.EX. SPECIFICATION OF COACHWORK MODIFICATIONS. (1) The SCUTTLE FACE is to be re-inforced on the lines of N.Sch.2233 already sent to the coachbuilders. (2) New… | ||
| Scan091 | Design and trial of a new triangulated steering column stay for the 20HP model. | ||
| View original record | TO HS. FROM DA/EV. C. to LHS, RY, SS. ORIGINAL DA/EV3/M3.9.26. 4th/9/26 20HP. STEERING COLUMN STAY. X5430 We thank you for your HS4/LG30826. The sole influence that has caused us to design a… | ||
| Scan092 | Steering and low-pressure tyre improvements and related complaints for Phantom and Goshawk models. | ||
| View original record | TO HS. & DJ. FROM R. C. to BS. WGR. CY. PN. CWD. EF. ORIGINAL STEERING, AND LOW PRESSURE TYRES. X8430 Y4565 X5430 I understand it is now agreed by Sales and the RR. engineers that larger size tyres… | ||
| Scan093 | Recommending the use of low-pressure tyres for Phantom & Goshawk chassis, detailing the advantages and disadvantages. | ||
| View original record | To BB.) FROM R. RY.) C. to WCR. HS. ORD. IN DA. ORIGINAL R3/M3.9.26. PHANTOM & GOSHAWK. LOW PRESSURE TYRES. Handwritten: XL4565 X8820 X8430 X5820 Regarding HS. memo. concerning the above, I agree that… | ||
| Scan094 | Manufacturing methods for special light pistons for the Phantom, comparing sand casting and forging of magnesium alloy. | ||
| View original record | ORIGINAL TO BY. FROM R. R4/M3.9.26. Copy to - BJ. HS. re. SPECIAL LIGHT PISTONS FOR PHANTOM. X8040 We should like these tried as sand castings, of the semi-pedestal type, provided the magnesium alloy… | ||
| Scan095 | Revised design for side steering tube springs to increase movement and provide a double rating. | ||
| View original record | ORIGINAL TO ~~BY~~ FROM DA. C. to ~~BJ~~ HS. DA3/M3.9.26. SIDE STEERING TUBE. X8430 X8450 X7450 We send herewith N. scheme 2258. - revised 1500 lb. side steering tube springs, which have been done… | ||
| Scan096 | Supply and mounting arrangements for wings, valances, and other body parts for a new chassis scheme. | ||
| View original record | ~~TO BY~~ FROM DA. C. to ~~B.J.~~ HS. ORIGINAL DA6/M3.9.26. EAC.7. WINGS, VALANCES, ETC. X7390 X7830 Herewith we send N. scheme 2251. shewing a layout of the front and rear wings, valances,… | ||
| Scan097 | Strengthening of stepirons based on recent complaints and new schemes. | ||
| View original record | TO BY. FROM DA. C. to BJ. HS. ORIGINAL DA7/M3.9.26. EAC. 7. STEPIRONS. X7380 We send herewith N. schemes 2259/60., shewing respectively the front and rear stepirons. We have taken the opportunity of… | ||
| Scan098 | Practicality of bends in a 3rd cross member tube to accommodate tip-up seats. | ||
| View original record | TO: --EH--. FROM DA. C. to --EH--. HS. ORIGINAL DA8/M3.9.26. EAC.7. 3rd: CROSS MEMBER. X7380 Herewith we send N. scheme 2257. shewing the proposed set in the above cross member. The reason for making… | ||
| Scan099 | Modifications to a front shock damper and rubber buffer for scheme 2262. | ||
| View original record | TO DY. FROM DA. C. to DJ. HS. EAC.7. FRONT SHOCK DAMPER, RUBBER BUFFER ETC. X7520 Herewith we send N. scheme 2262. in which we have laid out the shock damper, front cross member, sheet metal wing… | ||
| Scan100 | Proposed reduction of the Phantom and 20HP steering ratios by altering the worm gear. | ||
| View original record | TO FROM DA. C. to HS. ORIGINAL. DA5/M4.9.26. INDIA STEERING. X5430 9/9/26 In accordance with the proposed reduction of the Phantom steering ratio, R. would also like the 20HP. correspondingly reduced.… | ||
| Scan101 | Proposed trial of a slower pitch worm gear for the Phantom steering system to address customer complaints. | ||
| View original record | TO BY. [crossed out] FROM DA. C. to [redacted] HS. ORIGINAL. DA4/M4.9.26. PHANTOM STEERING. X8430 [crossed out] X7130 4/9/26 For meeting customers complaints on existing cars and possibly for future… | ||
| Scan102 | Excessive force required for the India cutout spring and suggesting weaker alternatives. | ||
| View original record | TO DY. FROM DA. HS. ORIGINAL! DA2/M4.9.26. [Handwritten:] M/9/26 INDIA CUTOUT SPRING. [Handwritten:] X5490 In reply to HS/AJLL/LG1926., we were led to the conclusion that the spring was rather heavier… | ||
| Scan103 | Modifications to the carburetter mixture control levers on the Phantom model to prevent fouling by the bonnet lock. | ||
| View original record | TO DY. FROM E. ORIGINAL E1/M9.9.26. Copy to BJ. " RG. " HS. 9-10/26 PHANTOM. X8680 / X8260 Please receive herewith drawing Lec. 2290. - Carburetter Mixture control levers. The modifications shewn are… | ||
| Scan104 | Three materials for pistons, their associated designs, and an issue with piston pin fixing. | ||
| View original record | TO HS. ) FROM R. (Handwritten text below, struck through: DY. RG.) (Handwritten text below, struck through: C. to BJ. WOB.) (Stamped in blue ink: ORIGINAL) (Handwritten: 4-0 10/9/26) (Handwritten:… | ||
| Scan105 | Listing required modifications for chassis 7-EX. | ||
| View original record | TO HS. FROM R. [Illegible crossed out text] ORIGINAL [Stamped and crossed out] CAR FOR WW. X8770 The car I want for the autumn bad weather is 7-EX., (the one I had in the South of France.) The chassis… | ||
| Scan106 | Engine issue of 'popping back' on the Phantom model, diagnosing it as explosions in the silencer. | ||
| View original record | TO HS. FROM R. C. to BJ. for HR. ORIGINAL PHANTOM. X8080/X93 X8230 HR. writes of "popping back". I am not sure what this means. We generally understand the term to mean "in the carburetter", but we… | ||
| Scan107 | New scheme for a 20HP battery frame stay support, referencing scheme N. 2271. | ||
| View original record | TO BY. FROM DA. Copy to HS. ORIGINAL. DA2/M15.9.26. 20HP. BATTERY IN FRAME. X 5525 Herewith we send N. scheme 2271. shewing the centre stay arranged horizontally so that it cannot assist in carrying… | ||
| Scan108 | Scheme for mounting a battery in the frame, including details on battery suppliers and electrical connections. | ||
| View original record | TO-BY. FROM DA. ORIGINAL DA1/M15.9.26. Copy to - DR. HS. EAC.7. BATTERY IN FRAME. X7535 Herewith we send N. scheme/2266/7/8., view of the mounting of the battery in the frame. We have shewn a Dagonite… | ||
| Scan109 | Modification to the sheet metal arm of the torque re-action dampers. | ||
| View original record | TO BY. FROM DA. Copy to - BI HS. ORIGINAL DA3/M15.9.26. EAC. 7. TORQUE RE-ACTION DAMPERS. x7005 In reply to BY/CGH2/G3926., Mr. Royce wishes to alter the sheet metal arm of the damper to attach on to… | ||
| Scan110 | Modifications to a Phantom pedestal piston made from forged magnesium. | ||
| View original record | TO BY. FROM R. ORIGINAL R3/M16.9.26. Copy to BJ. HS. PHANTOM PEDESTAL PISTON IN FORGED MAGNESIUM. X90260 We send you herewith drawing Lec. 2292. as promised in a previous memo., in which you will see… | ||
| Scan111 | From R. to EFC. discussing ignition issues with platinum points at different engine speeds. | ||
| View original record | TO EFC. FROM R. ORIGINAL R4/M18.9.26. [Handwritten]: VX652 [Handwritten]: 21/9/26 re. PLATINUM POINTS. Naturally running the engine at slow speed the current at the time of breaking the circuit on the… | ||
| Scan112 | Adjustments for the Phantom magneto and battery ignition systems, along with a proposed fix for a sticking throttle. | ||
| View original record | TO HS. & BY. FROM R. C to BJ. WOR. EFG. ORIGINAL R1/M20.9.26. X8680 PHANTOM MAGNETO ADJUSTMENT. " BATTERY " The hexagon on spider of magneto coupling (adjustment part) to be tightened by sheet metal… | ||
| Scan113 | Oversight in rear brake cable alignment and the proposed solution. | ||
| View original record | TO [REDACTED]. FROM DA. C. to [REDACTED]. HS. ORIGINAL EAC. 7. REAR BRAKE DIFFERENTIALS. X7360 Referring to the question of the alignment of the rear brake cables we agree that we have made an… | ||
| Scan114 | The development of a sequence starter. | ||
| View original record | TO EFC. FROM AJS. C.c. to BY. HS. [Text 'C.c. to BY.' is struck through] re. SEQUENCE STARTER. ORIGINAL [Stamp] AJS2/M21.9.26. x7650 [Handwritten] In reference to the last para. of your EFC3/T14926.,… | ||
| Scan115 | Directive for the design of hydraulic dampers for steering with an adjustable spring-loaded by-pass valve. | ||
| View original record | ORIGINAL. TO DA. FROM R. C. to - HS. ✔ R2/M22.9.26. △ X235 X2430 Design hydraulic dampers for steering with easily adjustable spring loaded by-pass valve each way into reservoirs with ball intake.… | ||
| Scan116 | Operation and design scheme for a sequence starter unit, including a diagram. | ||
| View original record | TO EFC. FROM R. Copy to B.J. ORIGINAL SEQUENCE STARTER. In re-arranging this unit we have considered the following scheme which is shewn diagramatically hereunder to be good - [Diagram of a starter… | ||
| Scan117 | Request for investigation and test data on the end pull of a starter motor armature. | ||
| View original record | (2) Before committing ourselves too far with the design of this unit there are a few points we should like you to investigate and test: they are - (A) What is the end pull of the existing starter… | ||
| Scan118 | Ignition timing issues, detonation, and other suggested modifications for the Phantom 10-EX experimental car. | ||
| View original record | TO HS. FROM R. Copy to BJ. ORIGINAL re. PHANTOMS. (10-EX.) X8774 XP680 I find it very difficult to get ignition starts regularly from 10-EX. Naturally the engine does not stop in the same position… | ||
| Scan119 | New scheme for the Phantom Sequence Starter, referencing drawing LeC. 2298 and patent modifications. | ||
| View original record | TO EFC.) FROM AJS. Copy to BJ. ORIGINAL AJS1/M24.9.26. PHANTOM SEQUENCE STARTER - NO. 2. SCHEME. - x7650 In reference to recent correspondence on the subject of the sequence starter we are sending you… | ||
| Scan120 | Effect of an out-of-centre point on front axle braking and the need for experimentation. | ||
| View original record | [Typed] TO HS. FROM DA. [Stamped in light blue] ORIGINAL [Stamped in purple] 27. Sep. 1926 [Handwritten] 8 Co [Typed] DA3/M24.9.26. [Stamped in red] FRONT AXLE. [Handwritten] X 4048 X 8420 (crossed… | ||
| Scan121 | Requesting a car with good weather protection for use at 'WW', discussing chassis and model requirements. | ||
| View original record | TO HS. FROM R. Copy to BJ. ORIGINAL R1/M24.9.26. re. CAR FOR WW. X8770 X8830 X5770 We must have a car at WW. with good protection against the weather, for visitors as well as ourselves. Where is the… | ||
| Scan122 | Stiffening a car's scuttle to prevent jellying and noise when new splashers are fitted. | ||
| View original record | TO HS. FROM R. Cg 4737 10-EX. ORIGINAL 27. Sep. 1926 X8774 X8170 R2/M25.9.26. It will be necessary (when this car is having the new splashers fitted) for the scuttle to be stiffened to prevent… | ||
| Scan123 | Use of aluminium bronze for valve seats and methods for their installation. | ||
| View original record | TO HS. ) FROM R. re. VALVE SEATS. X8060 L3822 27. Sep 1926 We hear that the Americans are entirely in favour of aluminium bronze for valve seats, even though the appearances after preliminary runs are… | ||
| Scan124 | Information regarding the properties and use of aluminium bronze for inserted valve seats. | ||
| View original record | FOR R. FROM E. C. to -- " -- " HS. " -- ORIGINAL 28 9/26 H E1/M27.9.26. ALUMINIUM BRONZE INSERTED VALVE SEATS. X6060 X3822 X1497 The following information appears in this months' journal of the S.A.E.… | ||
| Scan125 | Technical note on the performance of the F.10 cross web piston, regarding its cooling and oil control. | ||
| View original record | TO HS. } FROM R. ~~RG.~~ ~~BY.~~ ~~C. to BJ. WOR~~ ORIGINAL R2/M27.9.26. F.10. PISTON. X39383 The cross web piston is probably the best cooled piston we know of because of the greater surface in… | ||
| Scan126 | Solution for hot pistons, proposing a test of a wet liner. | ||
| View original record | TO HS. ) FROM R. (Struck through text: RG.) (Struck through text: DY.) (Struck through text: C.C. to BS. WOR.) ORIGINAL (Stamp) 9/26 (Handwritten) L.D (Handwritten) R4/M27.9.26. PISTONS. X3866… | ||