Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Agreeing to test a new lubrication method for the valve gear, while commenting on the quiet performance of the current system. | ||
| View original record | ORIGINAL FROM R. (At Le Canadel.) SECRET. R6/M2.3.29. REC'D AT WW. 5.3.29. C. to SG. WOR. HS. BY. SS. VALVE GEAR. x7060 I agree to testing out your suggestions of lubricating the valve gear by… | ||
| Scan002 | Design and operating pressure of a two-way press button starter switch, including proposed modifications. | ||
| View original record | EFC. FROM E. C. to SG. R. By HS SECRET. SS. TWO WAY PRESS BUTTON STARTER SWITCH. Regarding the above switch we believe your criticism is that it requires too much pressure to operate, and that the… | ||
| Scan003 | Modifications to improve starter motor lubrication, referencing blueprint LeC. 2683. | ||
| View original record | R. FROM E. C. to SG. " HS. " BY. " EFC. SECRET ORIGINAL E2/M14.3.29. SS. STARTER MOTOR LUBRICATION. X7625 Blueprint LeC. 2683. herewith shews an attempt to lubricate both ends of the motor from one… | ||
| Scan004 | Alternative methods for starter motor lubrication. | ||
| View original record | SECRET. E.W.H. ) FROM R. HS. BY. ) (At Le Canadel.) C. to SG. NOR. EFC. STARTER MOTOR LUBRICATION. R4/M18.3.29. REC'D AT WW. 22.3.29. X7625 LeC. 2683. This is a minor item but we should like to be… | ||
| Scan005 | The status and improvements of the electrical starters for the SS and 20HP models. | ||
| View original record | HS. BY.) FROM R. EFC. ) (At Le Canadel.) C. to SG. MOR. E. C. ORIGINAL SECRET. SS. AND 20HP. ELECTRICAL STARTER. R8/M25.3.29. REC'D AT WW. 28.3.29. X7655 X7625 X5650 SS. The starter was a feature of… | ||
| Scan006 | Secret memo suggesting modifications to a press button starter switch to reduce its high operating pressure. | ||
| View original record | EFC. FROM E. SECRET E1/M2.5.29. C. to SG. HS. SS. PRESS BUTTON STARTER SWITCH - LeC. 2641. The model of the above received this morning is a very nice little switch, very well turned out, but the… | ||
| Scan007 | Design improvements for an SS valve cover, including materials and manufacturing methods. | ||
| View original record | ORIGINAL SECRET. R2/M2.3.29. REC'D AT WW. 5.3.29. F. ) FROM R. HS. ) (At Le Canadel.) BY. ) C. to SG. WOR. SS. VALVE COVER. X7060 I like the cover you now send on LeCs.2677/79, because three holding… | ||
| Scan008 | The cornering stability of specimen 18-EX, with a safety warning against top-heavy cars. | ||
| View original record | HS. ) FROM R. (At Le Canadel.) SECRET. R3/M2.3.29. REC'D AT WW. 5.3.29. ORIGINAL C. to SG. WGR. C. SS. CHASSIS. X2830 X7770 In our specimen 18-EX. close coupled four seater rolling at corners is… | ||
| Scan009 | Modifications to the Phantom's spring gaiters and central oiling system. | ||
| View original record | --SG. ) FROM R. --OY. ) (At Le Canadel.) HS. SECRET. R4/M2.3.29. REC'D AT WW. 5.3.29. PHANTOM - re. SPRING GAITERS. X7410 X3806 X3745 I have not sufficient practical experience to say much about Mr.… | ||
| Scan010 | Secret memo discussing the arrangement of framed dashboard instruments, along with suggestions for coachbuilders and weight distribution. | ||
| View original record | DA/EV (crossed out) FROM R. HS. BY. ) (At Le Canadel.) SECRET. R1/M2.3.29. REC'D AT WW. 5.3.29. ORIGINAL C. to SG. WOR. E. PN. GWB FRAMED INSTRUMENTS. X7530 X5530 (crossed out) I am pleased you have… | ||
| Scan011 | Chassis vibration periods, damping, and preventing engine torque from reaching the frame. | ||
| View original record | NB. 2 fun R-type SaS Rundt out SS By. Mr. Sq CWB PAY Engine Mounting ORIGINAL X7005 I believe that the front end of every chassis will have a period such as we are experiencing trouble from. Every… | ||
| Scan012 | Engine minutes and suggesting improvements to frame and suspension damping. | ||
| View original record | SS engine minute (2) I am suggesting here that we find the periodicity of the frame front end, and if we can make this out of step with the axle. which I believe is generally understood to be between… | ||
| Scan013 | Hand-drawn sketch of a component's cross-section with notes on alternative materials. | ||
| View original record | one or both frictional material instead of rubber rubber | ||
| Scan014 | Feasibility and challenges of adding a shutter control to the steering column. | ||
| View original record | FROM R. (At Le Canadel.) C. to BG. " DA. " HS. PN. ORIGINAL R4/M5.3.29. REC'D AT WW. 9.3.29. X7250 X3499 SHUTTER CONTROL. Many thanks for your suggestion of having the shutter control on the steering… | ||
| Scan015 | And comparing different gearbox designs and potential improvements. | ||
| View original record | SQ. FROM R. (At Le Canadel) R3/M5.3.29. REC'D AT WW. 9.3.29. C. to Mr. Fuller. " Mr. Beaver. " Mr. Olley. " HS. SS. & 20HP. X 7310 X 2061 GEAR-BOXES. X5310 X 523 We have a very good indeed gearbox for… | ||
| Scan016 | From 'R' discussing the decision to include grouped instruments for the SS and 20HP models. | ||
| View original record | sg. FROM R. (At Le Canadel.) C. to WORR. HS. SY. DA/EV. E.H. GROUPED INSTRUMENTS. SS. & 20HP. ORIGINAL R1/M5.3.29. REC'D AT WW. 9.3.29. X7530 I am extremely pleased to hear that you have decided to… | ||
| Scan017 | Potential improvements to the wheel carrier's set screw bolt for a 4-seater car. | ||
| View original record | DA/EV ) FROM R. BY. HS. ) (At Le Canadel.) C. to SS. NOR. E. C. ORIGINAL R2/M7.3.29. REC'D AT WW. 12.3.29. PRESENT 20HP. N. SCH. 2839. X5600 I agree to the above - i.e. wheel carrier for close coupled… | ||
| Scan018 | Change gear problems, discussing freewheel sideshafts, epicyclic 3rd speed gears, and patent applications. | ||
| View original record | DA. ) FROM R. BY. ) (At Le Canadel.) HS. ) R4/M7.3.29. REC'D AT WW. 12.3.29. Copy to SG. (struck through) Copy to Mr. CLAREMONT X5310 X2061 X5640 CHANGE GEAR PROBLEMS. I shall be pleased to hear if… | ||
| Scan019 | Technical comparison of front seat widths and door thicknesses for various coachwork models. | ||
| View original record | R. FROM DA/EV. C. to SG. LHS. HS. SX. C. re. COACHWORK. X5830 X7830 X393 WIDTH OF FRONT SEATS. I have taken the opportunity when in London to investigate the question of body widths and door… | ||
| Scan020 | Summary of recommendations and comparative measurements for car body dimensions, including doors and windows. | ||
| View original record | (2) Like 14-G-4., due to the abnormal finisher thickness on the offside, the driver has only the elbow room of a body of 44.750 at the elbow line. That is why the car seems more cramped than that on… | ||
| Scan021 | Correspondence listing parts sent and providing assembly instructions for a 23-EX open body vehicle. | ||
| View original record | HS. FROM DA/EV. Copy to OX/HN [Struck through] re. 23-EX. OPEN BODY. We sent you on Sat. last - (1) Body complete with hood & side curtains. (2) Case of trunks. (3) Rear and front wings. (4) Material… | ||
| Scan022 | Investigation into fitting tubular cross members to the SS frame to eliminate radiator 'shimmy'. | ||
| View original record | R. FROM DA. Copy to SG. BY. HS. ✓ ORIGINAL HS SECRET DA1/M11.3.29. SS. FRAME CROSS MEMBER. X7380 As the results of the road testing seemed to point to the elimination of the cross as being the best… | ||
| Scan023 | The testing of SS. engine mountings, detailing road conditions and issues like radiator wobble and unsteadiness. | ||
| View original record | R. FROM E. C. to SS. WCR. HS. SECRET ORIGINAL E1/M12.3.29. SS. ENGINE MOUNTING ETC. X7005 X7810 X7930 X7250 At the risk of repeating a little of what has already been reported the following notes are… | ||
| Scan024 | Chassis wobble testing, exploring the effects of engine mounting and frame stiffness. | ||
| View original record | (2) PERIODIC NATURE OF WOBBLE. A chassis with the original diabolo rubber mounting was exhibited on a bump test with alternate bumps on the drums, and it was clearly shewn that the radiator wobble… | ||
| Scan025 | Engine damping schemes (a) and (b), comparing different mounting methods including friction dampers and soft rubbers. | ||
| View original record | (3) SCHEME (a). An example of (a) already tried was R's scheme of solid front feet with friction dampers - LeC. 2634. and N. sch. 2792. - at rear of unit, but the results from this early test were… | ||
| Scan026 | Road wheel diameter, booming, roughness, and exhaust manifold tests, including a sketch of a manifold design. | ||
| View original record | (4) ROAD WHEEL DIAMETER. A final run was made with the Sch. (b) SS. changing the 33" road wheels for 32" on the spot so that the minimum delay occurred between tests. It was difficult to believe that… | ||
| Scan027 | Testing vehicle exhausts, bodies, and frame schemes, noting issues with radiator joggles and steering. | ||
| View original record | (5) The last named is thought by Mr. Hancock to be the most silent, but owing to the complication introduced by different engine mountings none of these exhausts have been compared yet on equal terms.… | ||
| Scan028 | Comparing single and double crankshaft rear oil flinger designs to prevent oil leakage. | ||
| View original record | [strikethrough]R.[/strikethrough] FROM E. Copy to SG. " HS. " [underline]RV.[/underline] ORIGINAL [underline]SECRET.[/underline] SS. CRANKSHAFT REAR OIL FLINGER. [underline]X7010[/underline] We… | ||
| Scan029 | Blueprints and design considerations for an SS oil base and filter, including component placement and oil capacity. | ||
| View original record | R. FROM E. SECRET. ORIGINAL E3/M14.3.29. Copy to CG. (crossed out) HS. BY. (crossed out) SS. OIL BASE & FILTER. X7190 Blueprints LeC. 2680. and 2682. herewith shew die cast oil filter case with port… | ||
| Scan030 | The SS taper valve spring, discussing its current performance and proposed improvements. | ||
| View original record | ORIGINAL A. FROM E. SECRET. E1/M14.3.29. Copy to GS. SS. TAPER VALVE SPRING. X7060 " HS. X290 " BY. The present SS. valve spring seems to be a very good one and we do not propose to disturb it. We do… | ||
| Scan031 | Standardisation of Morganite EG2 Brade brushes for 40/50 & 'SS' Dynamos as an alternative to Le Carbone brushes. | ||
| View original record | RR 755 REVISED (10H) (D.C.777-29-2-28) M/C C.LTD COMPLETED 9.7.29. STANDARDISATION of CHASSIS PARTS. Date 14.3.29 No. 7670 Drawing No. 8673 Part List Description of Parts. MORGANITE EG2 BRADE BRUSHES… | ||
| Scan032 | Chassis periodicity issues and proposals for testing solutions on the 20HP & SS chassis. | ||
| View original record | HS. DA. FROM R. RY. (At Le Canadel.) C to SC WOR E SECRET ORIGINAL R1/M14.3.29. REC'D AT WW. 18.3.29. 20HP. & SS. CHASSIS. X7380 Y7420 X5380 I telegraphed "PREPARE TO ABANDON CROSS IN FRAME AND REVERT… | ||
| Scan033 | The design and necessary adaptations for a side wheel carrier for the 20HP chassis. | ||
| View original record | BY. FROM DA. Copy to HS. SECRET. ORIGINAL DA3/M18.3.29. 20HP. 51 IN SERIES OA. SIDE WHEEL CARRIER. X5600 As the alternative wheel and luggage carrier on the rear is necessary for these chassis, we… | ||
| Scan034 | Modifications to the hypoid rear axle casing to overcome distortion under load. | ||
| View original record | BY. FROM DA. C. to SS. HS. SECRET. SS. HYPOID REAR AXLE CASING. Herewith we send N. sch. 2854. shewing the modifications to the axle casing to overcome the distortion which occurred on the low gear… | ||
| Scan035 | Schemes for a freewheel in the sideshaft of the 20HP gearbox. | ||
| View original record | BY. ) FROM DA. HS. ) Copy to SG ORIGINAL DA5/M20.3.29. 20HP. GEARBOX. FREEWHEEL IN SIDESHAFT. X5310 X523 With reference to R4/M7.3.29., we are sending herewith N. schemes 2767/2772/2773., shewing the… | ||
| Scan036 | Clarifying that an instruction for the Works regarding SS cars in France was sent to Mr. Royce in error. | ||
| View original record | DY. ) FROM DA. HS. ) ORIGINAL DA1/20.3.29. X7420 Attached is DAI/M15.3.29. which was sent from Derby to Mr. Royce in error. It was intended as an instruction to the Works in connection with the SS.… | ||
| Scan037 | Clearance issues with the 'SS' Brake Cables and suggesting a modification to the expansion box. | ||
| View original record | R. FROM DA. DA1/M15.3.29. 'SS' BRAKE CABLES. The L.H. front brake cable comes rather close to the front expansion box on the car fitted with the stay to the crankchamber. It was intended that the… | ||
| Scan038 | Proposals for a central lubrication reservoir for the rear axle and the 20HP front axle arrangement. | ||
| View original record | ORIGINAL HS/GY. FROM DA. DA6/M22.3.29. CENTRAL LUBRICATION. X3806 With reference to HS/GY3/LG20329., we will send you in a day or two our comments on your proposals, or if necessary, an alternative s… | ||
| Scan039 | Proposal for an SS. exhaust cutout control and toggle gear modifications. | ||
| View original record | ORIGINAL SECRET. BY. FROM DA. C. to SG. HS DA9/M22.3.29. X7230 SS. EXHAUST CUTOUT CONTROL. We have not yet sent you a cutout control for the L.H. SS., and we send herewith N. scheme 2861. shewing a… | ||
| Scan040 | Proposal to temporarily fit a Phantom rear silencer to an SS car for experimental purposes. | ||
| View original record | DY. ) FROM DA. HS. ) SECRET. ORIGINAL DA2/M22.3.29. [Handwritten, crossed out: X7230] SS. EXHAUST SYSTEM. We believe that you would welcome the use of the complete Phantom rear silencer as you have… | ||
| Scan041 | Relaying the contents of a telegram with feedback on vehicle frame and suspension modifications. | ||
| View original record | HS. } FROM DA. SECRET. ORIGINAL DA1/M22.3.29. SS. FRAME. X7380 X7410 X7520 We have received the following telegram from R:- "DAY - CAR WITHOUT CROSS MEMBER QUITE SATISFACTORY "YOUR SPRING LUBRICATION… | ||
| Scan042 | With annotated diagrams detailing design modifications for a side wheel carrier. | ||
| View original record | DA. FROM R. (At Le Canadel.) SECRET R1/M22.3.29. REC'D AT WW. 26.3.29. Copy to SS. " WR. (Struck through) " HS. SS. SIDE WHEEL CARRIER. X7600 Re. N. sch. 2845. we think the wheel should be carried in… | ||
| Scan043 | Unexpected trouble with the Phantom clutch, its intended use, and potential causes or solutions. | ||
| View original record | CX. ) FROM R. BY. ) (At Le Canadel.) H.S. ) ORIGINAL Copy to SC. " WOH. " DA. " F. re. PHANTOM CLUTCH. Mr. Olley's letter is a great surprise to us. We do not know of any such trouble in any part of… | ||
| Scan044 | Issues with hydraulic dampers and proposing the use of large free passage valves. | ||
| View original record | HS/RM. ) FROM R. DA/HDY. ) (At Le Canadel.) RY. ) C.c. to SG. WOR. OY. " C. OWB. " Mr. CLAREMONT. ORIGINAL SECRET R3/M25.3.29. REC'D AT WW. 28.3.29. HYDRAULIC DAMPERS. X235 SS. AND OTHERS. X7420 As… | ||
| Scan045 | Suggesting a comparative test of tapered versus parallel valve springs to assess superiority for periodic vibrations. | ||
| View original record | HS. ) FROM R. Br. ) (At Le Canadel.) C. to SG. WOR. E. ORIGINAL R9/M25.3.29. REC'D AT WW. 28.3.29. VALVE SPRINGS. X290 X.7060 Though we are in a good position as regards these on all our work we have… | ||
| Scan046 | Use of tubular cross members to increase chassis stiffness and addressing potential vibration issues. | ||
| View original record | DA. ) FROM R. HS. ) (At Le Canadel.) BY. ) SECRET R2/M25.3.29. REC'D AT WW. 28.3.29. C. to SG. WCR SS. AND G.4. CROSS MEMBERS. X7380 X5380 Your suggestion of trying if we can do better with greater… | ||
| Scan047 | Cause of 'booming bodies' in cars, attributing the issue to coachbuilders. | ||
| View original record | ORIGINAL FROM R. (At Le Canadel.) R7/M25.3.29. REC'D AT WW. 28.3.29. [Text Struck Through: C. to ENG. WCR.] [Text Struck Through: BY. HS.] BOOMING BODIES. X7830 X5830 It is now generally considered… | ||
| Scan048 | Various change-speed gearbox schemes, categorized by their effect on ease of gear change and operational silence. | ||
| View original record | FROM DA. Copy to HS. DA1/M25.3.29. CHANGE SPEED GEARBOXES: Handwritten notes: X.523 / X2061 Mr. Hardy and I have gone through the gearbox situation, and report as follows: Two objects are being… | ||
| Scan049 | Comparative analysis of various gearbox and coupling mechanisms with their advantages and disadvantages. | ||
| View original record | (2) We attach literature concerning: Salerni coupling. Synchro-mesh. Several arrangements of internal mesh gears. Panhard helical 3rd. with dogs. The following are comments on the individual schemes.… | ||
| Scan050 | Comparison of the advantages and disadvantages of synchro-mesh and internal mesh with dog clutches gearboxes. | ||
| View original record | (3) (4) SYNCHRO-MESH. ADVANTAGES. | DISADVANTAGES. ---|--- A noiseless change between 3rd. & 4th. with practically no chance of a failure. | Some doubt as to durability of cone clutch surfaces.… | ||
| Scan051 | Analysis of Warner, Detroit, and Stutz-Detroit gears, including a proposal by Mr. Royce for an epicyclic 3rd gear. | ||
| View original record | (4) The Warner gear has a long internal mesh unit with overhang each end beyond the bearings, but as in the Detroit gear the forces at each end are in the same direction (although not equal) so that… | ||
| Scan052 | Slight heating of a servo and the need for fabric testing before production. | ||
| View original record | ORIGINAL BY. FROM DA. SECRET. DA1/M26.3.29. Copy to SC. Copy to HS. SS. SERVO. X7370 With reference to BY6/G22329., this same point was raised with HS. at the time of the experiment. It is understood… | ||
| Scan053 | Modification of frame side members for the SS short chassis, by shortening the 150' wheelbase version. | ||
| View original record | BY HS. } FROM DA. SECRET. ORIGINAL DA4/M27.3.29. SS. SHORT CHASSIS. FRAME SIDE MEMBERS, ETC. X7380 With reference to the SS. chassis with 144" wheelbase, of which we understand you are putting in hand… | ||
| Scan054 | Scheme 2865 for centralised chassis lubrication, concerning the air vessels in the pivots of the 20HP front axle. | ||
| View original record | BY. FROM DA. Copy to SC. HS. 20HP. CENTRALISED CHASSIS LUBRICATION. Herewith we send N. scheme 2865. shewing the air vessels in the pivots of the 20HP. front axle. We have shewn it for the axle now… | ||
| Scan055 | Completion and return of schedules for an SS. Exhaust System. | ||
| View original record | ORIGINAL DY. [struck through] FROM DA. Copy to SS. [struck through] HS. SECRET. DA3/M27.3.29. SS. EXHAUST SYSTEM. X7230 We send herewith N. schs. 2842/3., both of which you have already received in an… | ||
| Scan056 | Proposal regarding centralised chassis lubrication, specifically turning the Bijur drip plug cap nut into a reservoir. | ||
| View original record | BP. FROM DA. C. to SC. HS. CENTRALISED CHASSIS LUBRICATION. X3806 With reference to HS/GY3/LG20329., we think the idea of making the cap nut of the Bijur drip plug into a reservoir is quite a good… | ||
| Scan057 | Request to arrange a demonstration and test of the Salerni coupling. | ||
| View original record | HS. FROM DA. SALERNI COUPLING. DA2/M27.3.29. ORIGINAL x4510 With reference to the proposed test of the Salerni coupling it would be of much interest to us if we could try this too. We presume they are… | ||
| Scan058 | Secret memo detailing modifications and instructions for the production of an SS exhaust system and its components. | ||
| View original record | BY. FROM DA. C. to HS. SECRET. DA2/M28.3.29. SS. EXHAUST SYSTEM. CUTOUT OPERATION ETC. X7230 X7490 Herewith are N. schemes 2866/7., shewing the adaptation of the cutout, silencer suspension, heat… | ||
| Scan059 | Issues with shock dampers and proposing improvements for ride quality. | ||
| View original record | HS. DA. ) FROM R. BY. OX. ) (At Le Canadel.) Copy to SG. WCR. Mr. CLAREMONT ORIGINAL REC'D AT WW. 8.4.29. X235 X7420 X5570 X7520 X7830 X5420 SHOCK DAMPERS. I have definitely condemned two things - (1)… | ||
| Scan060 | Insufficient axle-body damping and steering wobble issues on a 20HP car. | ||
| View original record | HS. DA. ) FROM R. EV. ) (At Le Canadel.) c. to SG. WOR. E. PN. EP. ORIGINAL R1/M5.4.29. REC'D AT WW. 9.4.29. X5430 G.3. PROPOSED 10,000 MILE X5830 X5770 20HP. BROUGHT TO LE CANADEL BY X5840 REYNOLDS… | ||
| Scan061 | Demonstration of the Salerni Coupling and anticipating potential issues with its performance. | ||
| View original record | HS. FROM DA. ORIGINAL DA2/M6.4.29. SALERNI COUPLING. +c50 Replying to HS5/LG3429., the address is - The Salerni Coupling Ltd. 3 London Wall Buildings, LONDON. E. C. 2. We have asked them if they can… | ||
| Scan062 | The silencer system for the 20HP manifold, discussing potential designs and noise issues. | ||
| View original record | RM. FROM DA. ORIGINAL X5230 DA1/M6.4.29. With reference to HS/RM5/LG27329., the standard 20HP. manifold is cast. Further the pipe at the moment goes into the centre of the silencer. Do you mean that… | ||
| Scan063 | Secret memo regarding a Side Spare Wheel Carrier and the production of a longer engine foot. | ||
| View original record | BY. FROM DA. C. to WGR. HS. SECRET SS. SIDE SPARE WHEEL CARRIER. X7600 DA1/M8.4.29. With reference to BY6/G5429., we have wired you this morning as follows: "SS. SIDE SPARE WHEEL CARRIER AGREE TO… | ||
| Scan064 | 'R.' at Le Canadel agreeing to 'N. scheme 2560'. | ||
| View original record | [Text struck through] ) FROM R. [Text struck through] ) (At Le Canadel.) HS.) R4/M8.4.28. REC'D AT WW., & DESPATCHED 12.4.28. ORIGINAL INDIA 3. [Handwritten, struck through: X5770] [Handwritten:… | ||
| Scan065 | Modification to the water circulation drainage pipe to improve drainage and address criticism. | ||
| View original record | FROM E. Copy to HS. SECRET. ORIGINAL E1/M9.4.29. X7250 X7150 X7180 SS. WATER CIRCULATION DRAINAGE. Regarding the criticism on SS. that the water circulation system is not sufficiently drained, we find… | ||
| Scan066 | Analysis of ignition plug overheating issues and proposed design modifications to improve water cooling. | ||
| View original record | R. FROM E. C. to HS. BY. INDIA 4. - COMPRESSION RATIO & PREIGNITION- HS/ACL1/LG28329 (1) HIGHER TEMPERATURE OF IGNITION PLUGS. Regarding the tendency to pre-ignite on the 20HP. aluminium head there… | ||
| Scan067 | Engine performance, focusing on cooler ignition plugs, compression ratios, and cylinder head modifications. | ||
| View original record | (2) necessary drilled out, inserting the drill through the water-ports provided for making connection with the cyl. block - see again fig.3 (3) USE OF COOLER PLUGS. An important point that should not… | ||
| Scan068 | Suggestion to change the markings on an oil level indicator from quarter-gallon to half-gallon increments. | ||
| View original record | BY. FROM E. C. to SG. HS SECRET SS. OIL LEVEL INDICATOR. HS/AJL1/LG8.4.29. E4/M11.4.29. X7190 X7200 It is suggested that instead of having every .25 gal. marked on the indicator - 1/4. 1/2. 3/4. 1. 1… | ||
| Scan069 | Proposing to use studs instead of screws for the SS Air Pump Assembly eccentric to overcome assembly difficulties. | ||
| View original record | -BY. FROM E. SECRET. E1/M12.4.29. Copy to SG. " HS. " RHC. re. SS. AIR PUMP ASSEMBLY. X7510 Regarding the question of assembling the camshaft wheel and air pump connecting rod in position on the… | ||
| Scan070 | Modifications to a 3rd speed easy change gearbox, complete with sketches. | ||
| View original record | DA. BY.) FROM R. HS. ) (At Le Canadel.) SECRET ORIGINAL R1/M13.4.29. REC'D AT WW. 16.4.29. C. to SG. WOR. " E. OY. " Mr. CLAREMONT GEARBOXES. X5373 X5310 We need one of our 3rd. speed easy changes as… | ||
| Scan071 | Cutter, a cage controlled by a narrow surface, and the fitting of a freewheel mechanism with a potential emergency cancelling device. | ||
| View original record | (2) large diameter of cutter, plenty of clearance; other parts or the circumference will guide the cage. Cage controlled by narrow surface only on each side say .075". To save time I should like to… | ||
| Scan072 | Foul condition with a gusset plate on the SS exhaust system and proposed design modifications. | ||
| View original record | -BY. FROM DA. Copy to SS. HS. SECRET. DA3/M13.4.29. SS. EXHAUST SYSTEM. X7230 X7380 Our enquiry by wire with reference to the gusset plate was because we had seen that it fouled the cross member when… | ||
| Scan073 | Secret internal memorandum discussing 20HP car performance improvements by increasing the engine bore size. | ||
| View original record | R. FROM E. C. to SG. WCR. " FH. HS. " DY. EF. " DA. SECRET. E1/M15.4.29. 20HP. CAR PERFORMANCE. [Handwritten annotations] X5770 X4538 X5050 X5040 X5010 We are quite in agreement that it is highly… | ||
| Scan074 | Performance calculation comparing a 20HP model with the SS, considering engine capacity, weight, and axle ratio. | ||
| View original record | (2) HS., Taking the figure for litres/ton mile supplied by the 20HP. is 2820. for 33 cwts total weight. Chassis weight equals 24 cwt: Increased capacity (3.2 bore). 14% (This assumes body etc does not… | ||
| Scan075 | Weight reduction, body construction, and performance improvements for the future 20HP model. | ||
| View original record | SECRET ORIGINAL DA1/M16.4.29. FROM DA. FUTURE 20HP. X5770 X4012 X2066 X5830 X5310 C. to SG. WOR. HN. HS. BY. EP. ES. As regards the alternatives Y and Z, given in R1/M8.4.29., we are in favour of… | ||
| Scan076 | Difficulty in dismantling the L.S. jet on the 20HP carburettor and proposing a design improvement. | ||
| View original record | FROM E. C. to SG. WCR. " HS. BY. ORIGINAL E1/M16.4.29. re. 20HP. CARBURETTER. X5080/X4118 Arising out of Mr. Minchin's letters concerning his 20HP. car (with which he is exceedingly pleased) we find… | ||
| Scan077 | Proposing an increase of the 20HP engine bore to 3.25 inches and discussing the technical implications. | ||
| View original record | FROM E. SECRET ORIGINAL E2/M17.4.29. C. to SG. HCR. TN. HS. DY. EXL. [HCR, TN, HS, DY, EXL are struck through] 20HP. PERFORMANCE AND 3.25 BORE. X5050 Further to our memo. E1/M15.4.29. we now suggest… | ||
| Scan078 | Test report on the performance and drawbacks of a Salerni coupling fitted to a 7HP Fiat. | ||
| View original record | -R. FROM DA. Copy to SG. " HS. " EB. ORIGINAL DA1/M17.4.29. SALERNI COUPLING. X4510 Mr. Hardy and I tried a 7HP. Fiat fitted with a Salerni coupling. As far as we could judge in the short run we had… | ||
| Scan079 | Secret memo regarding modifications to rear wheel carriers and associated special petrol tanks. | ||
| View original record | PY FROM DA. SECRET. DA3/M17.4.29. Copy to SC HS. SS. REAR WHEEL CARRIERS. X7600 Herewith we send N. sch. 2875. shewing the modification to the standard single rear wheel carrier to give a leaning… | ||
| Scan080 | Confirmation letter detailing modifications to the cutout control, silencer, and heat shield. | ||
| View original record | BY. FROM DA. SECRET. DA2/M17.4.29. X.7490 X.7230 Copy to HS. SS. CUTOUT CONTROL. We have despatched to you N. sch. 2878., shewing the revised cutout control to suit the 3" cross member with straight… | ||
| Scan081 | Remedies for a clearance issue with the cross steering tube. | ||
| View original record | BY } FROM DA. HS. } SECRET. DA4/M17.4.29. SS. CROSS STEERING TUBE. X7425 Referring to HS/RM1/LG12429., we do not understand this foul as our own drawings, both of the shock damper and the front axle,… | ||
| Scan082 | Proposed adjustments for hydraulic dampers based on road test feedback. | ||
| View original record | BY. ) FROM R. HS. ) (At Le Canadel.) BA. ) R1/M14.4.29. REC'D AT WW. 18.4.29. C. to SG. E. re. HYDRAULIC DAMPERS. X235 Thanks to Mr. Bailey for the suggestions in his excellent memo. As he says we may… | ||
| Scan083 | Proposal for an easy-change gearbox device using a clutch-operated valve and suction-powered cylinder. | ||
| View original record | .ORIGINAL DA/HDY. [text crossed out] H. BY. [text crossed out] HS. ) FROM R. (At Le Canadel.) R2/M14.4.29. REC'D AT WW. 18.4.29. Copy to - SG. [text crossed out] WOR. [text crossed out] Mr. CLAREMONT.… | ||
| Scan084 | Proposed alterations for a 3.250' bore engine, focusing on the design and material of cylinder studs. | ||
| View original record | R. FROM E. SECRET ORIGINAL EI/M18.4.29. C. to SG. WCR. (SG. WCR. struck through) ✓ HS. BY. G. 4. LARGER BORE. 45050 (struck through) 45040 We attach herewith blueprint LeC. 2695. shewing proposed… | ||
| Scan085 | Design and effectiveness of hydraulic dampers. | ||
| View original record | DA. HS.) FROM R. SY. ) (At Le Canadel.) SECRET. R3/M19.4.29. REC'D AT WW. 23.4.29. Copy to SG. WCR. PN. " E. OY. HYDRAULIC DAMPERS. X235 X7520 I hope it is agreed that restricted passages for the oil… | ||
| Scan086 | Modifications to the 20HP model, including increasing engine size and chassis length to create a 25HP version. | ||
| View original record | HB. FROM R. (At Le Canadel.) SECRET. ORIGINAL R1/M18.4.29. REC'D AT WW. 22.4.29. 20HP. X5770 X5050 X5830 It is decided that we cannot keep the weight of our 20HP complete car down to that of the… | ||
| Scan087 | Development and potential of a compression ignition unit, urging to proceed with testing. | ||
| View original record | BY. } FROM R. (At Le Canadel.) ORIGINAL. C. to ES. WOR. RG. " HS. F. COMPRESSION IGNITION UNIT. R1/M19.4.29. REC'D AT WW. 23.4.29. X4433. X4446. Much of this can go ahead as soon as there is room in… | ||
| Scan088 | Testing and proposed solutions for a slow speed steering wobble on a 20HP model. | ||
| View original record | HS. DA. ) FROM R. (At Le Canadel.) C -- SG. WCR. -- ? (strikethrough) " " PN. CV (strikethrough) 20HP. STEERING. X5430 I admit that the slow speed wobble was very difficult to get by hand, but on 3… | ||
| Scan089 | Blueprint for 3.250' cylinders for a 20HP chassis. | ||
| View original record | BY. FROM E. C. to SG. WOR HS. SECRET. ORIGINAL E1/M20.4.29. 20HP. CHASSIS. X5050 We attach herewith a blueprint E/(E62695) shewing the 3.250" cylinders for the 20HP. chassis. E. | ||
| Scan090 | Secret memo confirming a telegram and detailing modifications for increasing a 20HP chassis bore to 3.25 inches. | ||
| View original record | R. FROM E. [R. is struck through] C. to SG. WGR. HS. BY. DA. [WGR. HS. BY. DA. are struck through] SECRET. re. 20HP. CHASSIS - 3.25" BORE. [Top Right] SUNDAY. E1/M21. 4. 29. [Handwritten:] +5050 /… | ||
| Scan091 | Secret internal memo requesting urgent creation of linen tracings from blueprints for a publication on the body subframe. | ||
| View original record | ORIGINAL PY. FROM DA/EV. SECRET. DA/EV1/M22.4.29. C. to SG. A. R. (crossed out) re. BODY SUBFRAME. HS. x7380 x7830 We send herewith drawings and prints of Figs. 1 - 10., shewing illustrations which we… | ||
| Scan092 | Lack of expected performance from a new 20HP turbulent head and requesting further investigation. | ||
| View original record | SECRET. ORIGINAL SG: FROM R. NR1/M22.4.29. REC'D AT WW. 25.4.29. C. to HCR. HS. BY. E. PN. C. EE. 20HP. TURBULENT HEAD ETC. X5050 X5770 +790 I am somewhat surprised that no definite improvement was… | ||
| Scan093 | Secret memo discussing the blueprints and vibration testing for SS valve springs. | ||
| View original record | A. FROM E. SECRET. E1/M23.4.29. [STAMP: ORIGINAL] Copy to SS. " HS. " BY. SS. VALVE SPRINGS. [HANDWRITTEN: X7060] [HANDWRITTEN, CROSSED OUT: X290] We send you herewith blueprint of LeC. 2697. shewing… | ||
| Scan094 | Secret memo discussing design modifications for the G.4 engine crankcase and its mounting. | ||
| View original record | FROM E. C. to SG. WGR. [text struck through] HS. BY. SECRET. G. 4. ENGINE - CRANKCASE FOR 4 POINT MOUNTING ETC. E4/M23.4.29. X5000 [text struck through] X5005 X7040 Referring to the 4 point mounting… | ||
| Scan095 | Recommended oils for central lubrication systems, advocating for mineral oil over others. | ||
| View original record | HS. DY.) FROM R. DA.) (At Le Canadel.) C. to SG. FN. C. ORIGINAL SECRET REF/M23.4.29. REC'D AT WW. 27.4.29. X3806 CENTRAL LUBRICATION. PHANTOM, SS., & 20HP. OILS TO RECOMMEND. Reading the report… | ||
| Scan096 | Sample Lucas Lamp (Type R.160.S.D) and its potential trial fitting on a Phantom car. | ||
| View original record | E7c HS FROM DA. [HS is struck through] Copy to SG. " G. [G is struck through] " GX. [GX is struck through] ORIGINAL DA4/M23.5.29. LUCAS LAMP - TYPE R.160.S.D. X135) /7800 [struck through] x8800 We are… | ||
| Scan097 | Shape of a radiator's overflow pipe as the cause of water loss, with suggested solutions. | ||
| View original record | HS. [struck-through text] ) FROM R. E. [struck-through text] ) (At Le Canadel.) Copy to [struck-through text] " " [struck-through text] ORIGINAL SECRET. R2/M23.4.29. REC'D AT WW. 27.4.29. SS.… | ||
| Scan098 | Scheme 2882, detailing controls lowered into the steering wheel and alternative klaxon switch positions. | ||
| View original record | FROM DA. SECRET. ORIGINAL DA6/M23.4.29. C. to SG. HS. INDIA 4. CONTROLS ON STEERING COLUMN X7430 X7240 Herewith we send N. sch. 2882. shewing the controls on the top of the steering column lowered… | ||
| Scan099 | Modifications to a freewheel in a gearbox sideshaft, comparing different manufacturing schemes. | ||
| View original record | BY. FROM DA. C. to SG. HS. SECRET. G. 4. GEARBOX. FREEWHEEL IN SIDESHAFT. ORIGINAL DA1/M23.4.29. X5310 X523 Herewith we send N. scheme 2881. shewing the modifications to the freewheel which R. asks… | ||
| Scan100 | Modification to the SS Rear Shock Damper. | ||
| View original record | FROM DA. SECRET. DA2/M25.4.29. C. to SS. HS. SS. REAR SHOCK DAMPER. X7520 Herewith we send N. scheme 2883. shewing the increased diameter of washer and split pin lock for the piston dead eye, as… | ||
| Scan101 | Secret memo regarding a modified gland and spring for the SS Water Temperature Regulating Valve. | ||
| View original record | ORIGINAL ~~BY~~ FROM E. SECRET. E2/M1 3.4.29. C. to ~~SC.~~ HS. SS. WATER TEMPERATURE REGULATING VALVE. X7250 X7180 We send herewith LeC. 2693. shewing modified gland and spring for the above. This… | ||
| Scan102 | Confirmation of a telegram to Royce in France regarding the 'Twenty' model's performance and sales concerns. | ||
| View original record | SECRET. CONFIRMATION OF TELEGRAM. Copy to SG [struck through] Copy to HS.✓ [STAMP] ORIGINAL WW. 25. 4. 29. [Handwritten] X5770/Y5771 ROYCE. LE CANADEL. PAR LE LAVANDOU. VAR. FRANCE. REGARDING TWENTY… | ||
| Scan103 | Performance report on the 20HP engine, comparing standard and turbulent heads, and detailing power increases. | ||
| View original record | FROM E. C.to SG. WGR. PN. (WGR and PN are struck through) " HS. BY. SECRET ORIGINAL E1/M26.4.29. 20HP. PERFORMANCE. X5770 X5050 X790 X1725 The present standard compression ratio is 4.8 to 1. The… | ||
| Scan104 | Secret memo relaying a telegram from 'R' with instructions for a 20HP car, including fitting rollerless tappets. | ||
| View original record | HS. FROM E. SECRET. ORIGINAL E2/M26.4.29. C. TO SG. WOR. BY. [Struck through] 20HP. X5770 [Handwritten] X.5060 [Handwritten] We give as follows a copy of telegram received from R. yesterday:- "DONT… | ||
| Scan105 | Alterations required for a 20HP G.3 engine to accommodate a 3.250' bore. | ||
| View original record | BY. FROM E. C. to SG. HS. SECRET. ORIGINAL E1/M27.4.29. 20HP. G.3. ENGINE- ALTERATIONS REQUIRED FOR 3.250" BORE. X 5050 X 5770 Please find attached drawing LeC. 2696., shewing the above. E. | ||
| Scan106 | Secret memorandum proposing engine and component upgrades for the 20HP model to increase performance. | ||
| View original record | E. DA. ) FROM R. HS. BY. ) (At Le Canadel.) C. to SG. WOR. PN. LHS ORIGINAL SECRET. R3/M27.4.29. REC'D AT WW. 29.4.29. 20HP. X5770 X5080 X5050 and 25.3HP. if bored 3.250. This will now become the… | ||
| Scan107 | Delayed completion of an instrument board for a Barker Allweather vehicle. | ||
| View original record | E7C to | ||
| Scan108 | Clarifying confusion over the supply of lamps and accessories for experimental cars. | ||
| View original record | ORIGINAL EV3/29.4.29. to Hs/Rm. from Ev. X5800 RE LAMPS AND ACCESSORIES. We thank you for your Hs/Rm4/LG22.4.29. and are sorry to hear that there has been some confusion about the lamps and… | ||
| Scan109 | Secret internal memorandum outlining the 20HP car programme, detailing specifications for G.4, G.5, and G.6 series models. | ||
| View original record | SG. BY. } FROM R. C. to WCR. HS. CX. FN. R. DA. SECRET ORIGINAL 20HP. PROGRAMME. G. 4, G.5., (= INCREASED BORE) & G.6. G.5. & 6. ARE 25HP. RATING. To avoid any delay or waste of time and money I give… | ||
| Scan110 | Modifications to a car's rear, including lowering the floor and using hypoid gears. | ||
| View original record | E. ) FROM R. DA. ) (At Le Canadel.) HS. ) (Note: E., DA., and HS. are crossed out) Copy to SG " WOR " BY. ORIGINAL SECRET. R2/M13.4.29. REC'D AT WW. 16.4.29. G. 4. Y5770 (Y5770 is crossed out) X2066… | ||
| Scan111 | Spring wire section for the SS. Cross Steering Tube ball joint. | ||
| View original record | BY: FROM DA. Copy to - SS. HS. SECRET ORIGINAL DA2/M1.5.29. SS. CROSS STEERING TUBE. X7425 Herewith we send N. sch. 2884. giving the 1500 lbs. spring on the cross steering tube ball joint, as… | ||
| Scan112 | From Mr. Royce detailing an experiment on an SS. Exhaust Silencer. | ||
| View original record | ORIGINAL HS. FROM DA. SECRET. DA1/M1.5.29. SS. EXHAUST SILENCER. X7230 Mr. Royce would like you to experiment with the SS. silencer in the following way: (we have no details of the SS. silencer, and… | ||
| Scan113 | Secret memo proposing to thicken the SS Rear Axle shock damper bracket to double its strength, following reports of it bending. | ||
| View original record | BY. FROM DA. SECRET. DA3/MI.5.29. Copy to SG. HS. (SG. is struck through) SS. REAR AXLE. x7350 (struck through) x235 x7520 With reference to HS/RM5/LG25429.., we understand that the rear shock damper… | ||
| Scan114 | Critique and modification request for a press button starter switch due to excessive operating pressure. | ||
| View original record | EFC. FROM E. C. to SG. WOR. [Strikethrough] "HS. BY." [Strikethrough] ORIGINAL SECRET SS. PRESS BUTTON STARTER SWITCH - LeC. 2641. E1/M2.5.29. X7655 The model of the above received this morning is a… | ||
| Scan115 | Increase in throttle valve diameter for the 20HP carburetter. | ||
| View original record | [Stamped: ORIGINAL] HS. ) FROM E. [Crossed out: BY. )] Copy to SG. SECRET. E2/M2.5.29. 20HP. CARBURETTER. [Handwritten: X5080] [Handwritten, crossed out: X5050] Referring to the throttle valve… | ||
| Scan116 | Conclusions and recommendations on the design and performance of hydraulic dampers. | ||
| View original record | HS. BY. ) FROM R. DA. ) C. to SG. WOR. OY Mr. Fuller re. HYDRAULIC DAMPERS. X235 X5520 My conclusions at present are as follows:- (1) That the restriction passage, and our desire that the dampers… | ||
| Scan117 | Design and specifications for a 3.25' diameter piston for the 'China' Chassis, focusing on the circlip design. | ||
| View original record | FROM R. SECRET R1/M4.5.29. C. to PISTON FOR 'CHINA' CHASSIS. X.5040 We are sending you herewith LeC. 2698. shewing the 3.25" dia. piston for 'O' series of twenties. The piston pin is retained by… | ||
| Scan118 | Alterations to piston design, including ring configuration, materials, and the 'Invar' skirt. | ||
| View original record | RC. E.) FROM R. HS. ) Copy to SG. " WOR. " BY. ORIGINAL R1/M8.5.29. re. PISTONS. X3996 / X4004 E. is sending you further particulars as to the grinding of the pistons which have the so called 'Invar'… | ||
| Scan119 | Proposing a revision to the air vessel scheme for the centralised chassis lubrication system by converting a junction piece. | ||
| View original record | BY. FROM DA. Copy to SS. HS. SECRET. DA1/M8.5.29. X3806 SS. CENTRALISED CHASSIS LUBRICATION. With reference to BY/CGH1/G15429., probably the best way is to revise the scheme of air vessel, and we send… | ||
| Scan120 | Secret memo regarding drawings for a temporary four-point suspension system for 17-G-4. | ||
| View original record | BY. FROM E. SECRET. ORIGINAL E1/M8.5.29. Copy to HS. TEMPORARY FOUR POINT SUSPENSION FOR 17-G-4. X 5005 We send you herewith drawings LeC. 2701., and 2702., shewing the above. Blueprints of these… | ||
| Scan121 | Surplus lamps, instrument panels, and radiator shutter controls for specific vehicle models. | ||
| View original record | HS/RM. FROM DA/EV SECRET DA/EV2/M8.5.29. E7c (handwritten, crossed out) X7800 X7530 Y1357 (handwritten) X5500 X5530 (handwritten, crossed out) 23-EX., & 16-G-4. Thank you for HS/RM4/LG6529. We note… | ||
| Scan122 | Proposing a design for automatically controlled shock dampers using an air spring. | ||
| View original record | ✓ HS. BY. (Struck through) } FROM R. DA. (Struck through) ORIGINAL R2/M9.5.29. Copy to SG. C. (Struck through) " WOR. P.N. (Struck through) " MR. CLAREMONT (Struck through) SHOCK DAMPERS. X7520 /… | ||
| Scan123 | Providing feedback on a car, suggesting steering improvements via spring changes and mandating the use of cream instrument faces instead of black. | ||
| View original record | HS. [struck through: BY.] ) FROM R. [struck through: E. H. )] Copy to SG. [struck through: WCR] [struck through: O. PN] ORIGINAL SECRET. R2/M9.5.29. SS - 22-EX. X7430 X7530 X7770 I was very pleased… | ||
| Scan124 | Chassis frame and engine mounting modifications for 20HP models codenamed 'India', 'China', and 'Japan'. | ||
| View original record | HS. ) FROM R. BY. ) Copy to SG. WCR. C. PN. SECRET. ORIGINAL R3/M9.5.29. 20HP. X5770 X5005 X5050 X5380 X5230 Regarding the various stages of the 20HP. we have called in the past one of the… | ||
| Scan125 | Exhaust system alterations, radiator movement, and frame stiffness issues. | ||
| View original record | (2) I shall be glad if you will alter the exhaust system by breaking up the length of the pipe as we have done in the case of SS., and we shall send you our more recent ideas with the perforations in… | ||
| Scan126 | Secret memo regarding modifications to the casings of front and rear hydraulic dampers to eliminate dynamic restrictions. | ||
| View original record | BY. FROM DA. SECRET. ORIGINAL DA1/M14.5.29. C. to SG. HS. SS. HYDRAULIC DAMPERS. X235 X7520 We send herewith N. sch. 2890., shewing the modifications to the casings of the front and rear dampers to… | ||
| Scan127 | Alterations to the steering lock to achieve a 38 degree lock. | ||
| View original record | BY: FROM DA. C. to SC. HS. SECRET. ORIGINAL DA3/M23.5.29. SS. STEERING LOCK. X7430 Replying to BY/CGH2/G17529., re. reduction of the steering lock by the shaft of the front axle control damper, we… | ||
| Scan128 | Unbearable faults, including radiator shiver and engine vibrations, on a 20HP 12-G-4 Close Coupled Saloon. | ||
| View original record | HS. RY. } FROM R. DH. (struck through) C. to SG. WOR. E. IN. G. (struck through) SECRET ORIGINAL R3/M23.5.29. X5770 X5830 (struck through) X5250 (struck through) 20HP. 12-G-4. (JAPAN.) CLOSE COUPLED… | ||
| Scan129 | Proposed modifications for a car, including radiator depth, piston types, and crankshaft stiffness. | ||
| View original record | (2) 2 for, and 1 against, and the vibrations 4 1/2 per revolution. (3) To improve the appearance of this 'Japan' car DA. is just completing a drawing of the radiator 2 1/2" deeper, but it is possible… | ||
| Scan130 | Design and sourcing of Enots nipples with non-return valves and filters for axle lubrication. | ||
| View original record | ORIGINAL HS/GY. FROM DA. DA2/M25.5.29. x5806 x7420 x4400 x7350 DESIGN OF ENOTS NIPPLE FOR AXLE LUBRICATION. Replying to HS/GY1/LG22529, we understand that you have actually got special Enots nipples… | ||
| Scan131 | Secret document detailing modifications and required corrections for the SS. press button starter switch. | ||
| View original record | DY. FROM E. C. to | ||
| Scan132 | Advantages and disadvantages of fitting thermostatically controlled radiator shutters as an alternative to hand control. | ||
| View original record | SG. HS. } FROM R. SECRET. ORIGINAL R1/M27.5.29. Copy to Mr. Fuller. [Struck through: GY. WOR. BY.] [Struck through: G.M.] 'SS' AND 'JAPAN' RADIATOR SHUTTERS. [Handwritten: X5230 X 3499] [Handwritten:… | ||
| Scan133 | Drawing for an I-section connecting rod for the 20HP 'China' Chassis. | ||
| View original record | ORIGINAL BY. [struck through] FROM E. SECRET. E1/M27.5.29. Copy to EG. [struck through] HS. 20HP. 'CHINA' CHASSIS. X5010 We send you herewith drawing LeC. 2703., shewing a design for an I section rod… | ||
| Scan134 | Issues with offering two compression ratios and feedback on improvements to the SS chassis. | ||
| View original record | HM. FROM R. Copy to SG. " HS. " WOR. " F. SECRET. ORIGINAL R3/M29.5.29. 40/50 - TWO COMPRESSION RATIOS. X790 X8040 I appreciate your memo. HM5/W27529. The trouble with two compression ratios as… | ||
| Scan135 | Design specifications for a 20HP hypoid rear axle. | ||
| View original record | FROM DA. C. to HS. SECRET DA1/M29.5.29. X2066 X 5350 20HP. HYPOID REAR AXLE. Herewith we send N. sch. 2886. shewing the hypoid rear axle casing for the 20HP. We have followed the lines of SS. as… | ||
| Scan136 | Confirmation of a wire message detailing instructions to fit a turbulent head and lighten pistons on an engine. | ||
| View original record | CONFIRMATION OF WIRE. ORIGINAL HIVES. ROYCAR. DERBY. x5050 (struck through) X5770 (struck through) x5040 WW. 29. 5. 29. FIT TURBULENT HEAD FOR SIXTEEN-G-FOUR EVEN IF SMALLER BORE BUT SUGGEST THREE… | ||
| Scan137 | Critique of a 20HP Cabriolet de Ville with a blue Hooper body, discussing its performance and build quality. | ||
| View original record | HS. FROM R. SECRET. Copy to SG [Struck through] " RY [Struck through] " DA [Struck through] 20HP. CABRIOLET DE VILLE - X5770 X5230 BLUE HOOPER BODY. X5830 This car, which arrived at WW. on Monday… | ||
| Scan138 | Experiments on engine suspension, replacing solid mounts with rubber shoes and proposing a front pivot mounting. | ||
| View original record | HS. FROM E. SECRET. E1/M30.5.29. [strikethrough]Copy to SG BY[/strikethrough] 17-G-4. ENGINE SUSPENSION. X5005 We send you herewith LeC. 2713. shewing a further experiment that R. would like you to… | ||
| Scan139 | Urgent experiment to incorporate a Salerni coupling into a 14-EX model vehicle. | ||
| View original record | FROM DA. Copy to - HS. EXPERIMENT WITH SALERNI COUPLING. X4510 Herewith we send N. scheme 2899, a drawing shewing the space available, and the pieces necessary to incorporate a Salerni coupling in… | ||
| Scan140 | Comparing two different connecting rod designs for the China Chassis. | ||
| View original record | BY. FROM E. C. to SG. HS. SECRET. E1/M3.6.29. CHINA CHASSIS. CONNECTING RODS. X5030 We find E55304 & 5. and LeC. 2703. are practically no different. The former has a little less clearance with the oil… | ||
| Scan141 | The design and materials for a car engine crankshaft damper, suggesting alternatives for the 'Japan' and 'China' chassis. | ||
| View original record | HS. } FROM R. BY. (struck through) Copy to SC (struck through) SECRET ORIGINAL R2/M3.6.29. CAR ENGINES. CRANKSHAFT DAMPER. X634 X5010 X7010 (struck through) I am inclined to think that the reason… | ||
| Scan142 | The investigation of cracks in the R engine cylinder block and proposed remedies. | ||
| View original record | BG. ) FROM R. RG. ) C. to HS. HL. P-F. re. RG's VISIT TO WW. ON TUESDAY, MAY 28th. The R. engine cyl block occupied most of the time. It is not very manifest what is the cause of the cracks between… | ||
| Scan143 | Technical discussion on gearbox problems, focusing on achieving a silent 3rd speed and easier gear changes. | ||
| View original record | HS. CX. (Struck through) BY. DA. (Struck through) Mr. CLAREMONT. (Struck through) } FROM R. C to Lord Wargrave. " " LHS. SG. WOR. (Struck through) " " Mr. Fuller. (Struck through) " " PN. E. (Struck… | ||
| Scan144 | Proposed solutions for gearbox and clutch engagement issues. | ||
| View original record | (2) Mr. Hardy has suggested that to overcome the difficulty in connection with the reverse, which will not engage without some special devices and further manoeuvres, that the coupling may be placed… | ||
| Scan145 | The testing of and a royalty-free agreement for the Salerni coupling. | ||
| View original record | (3) There is another point in connection with the Salerni coupling, and that is, as we are helping Mr. Salerni by pointing out the imperfections of his scheme, and promising to test a combination… | ||
| Scan146 | Feedback and proposed improvements for the 20HP 'China' specimen, ahead of a 10,000-mile trial in France. | ||
| View original record | HS. } FROM R. & E. C. to SC. LHS. WOR ORIGINAL SECRET R1/M5.6.29. X5840d. X5YYO. 20HP. 'CHINA' - 3 1/4 BORE LEAVING FOR 10,000 MILES TRIAL IN FRANCE. (1) The specimen brought to WW. yesterday appeared… | ||
| Scan147 | Proposal for centralised chassis lubrication on 40/50 and 20HP models. | ||
| View original record | ORIGINAL BY. FROM DA. DA1/M5.6.29. C. to SG. HS. 40/50. AND 20HP. CENTRALISED CHASSIS LUBRICATION. x 3806. xY420. xY350. We thank you for your BY/CGH5/G31529. It appears to us that the proposal shewn… | ||
| Scan148 | The fitting of a rear direction indicator and stop lamp for car 'S.S.'. | ||
| View original record | ORIGINAL SECRET EV2/6.6.29. X4503 XY830. TO EX. FROM EV. COPY HS. DIRECTION INDICATOR FOR "S.S". We send herewith N.Sch.2897. shewing a rear direction indicator arranged for fitting behind the dual… | ||
| Scan149 | Modifications to the brake linkage and servo for the Salerni coupling on EAC. 7. | ||
| View original record | ORIGINAL FROM DA. Copy to SG. HS. SALERNI COUPLING ON EAC. 7. X4510 Herewith we send N. schemes 2903/4.,a further drawings in connection with the above coupling which have been made to shew how the… | ||
| Scan150 | Possibility of fitting the original 40/50 radiator from car EAC. 8 to another vehicle. | ||
| View original record | HS. FROM DA. Copy to SG. ORIGINAL 40/50 RADIATOR. DA/EV3/M7.6.29.. X/250. You will remember that the original radiator for EAC. 8. had taper sides and top tank to conform with the slope of the bonnet.… | ||
| Scan151 | Fitment of a third centre lamp to a Phantom model, highlighting issues and suggesting alternative solutions. | ||
| View original record | B.Y. ) FROM DA/EV. QX. ) C. to SG. C. HS. ORIGINAL SECRET. DA/EV1/M7.6.29. PHANTOM - THIRD LAMP SCHEME. x8800 Sales are asking us to provide a bracket to support a special Lucas R.160.S. lamp as the… | ||
| Scan152 | Correction to scheme 2899, concerning the method for retaining a large ball bearing in an experimental Salerni coupling gearbox. | ||
| View original record | -DY. FROM DA. Copy to SG. HS. ORIGINAL REC'D DA1/M8.6.29. EXPERIMENTAL SALERNI COUPLING AT THE BACK OF EAC.7. GEARBOX. X4510 Y7310 Herewith we send N. scheme 2906., shewing a correction to N. scheme… | ||
| Scan153 | Routing of the High-Tension (H.T.) magneto wire on a 20HP chassis. | ||
| View original record | EFC. FROM E. C. to SG. HS. BY. ORIGINAL E3/M10.6.29. X4473. 20HP. CHASSIS - H.T. MAGNETO WIRE. Re. your suggestion to run this wire through the wiring tube in company with the leads to the plugs, is… | ||
| Scan154 | From 'E' confirming Mr. Royce's requested alteration to the 20HP inlet cam form to raise the valve gear's bouncing speed. | ||
| View original record | BY. FROM E. C. to SG. (struck through) HS. ORIGINAL (Stamp) X1770 Y5770! (Handwritten) 20HP. VALVE TIMING. Referring to your memo. BY1/G8629., and telephone conversation of today's date, kindly note… | ||
| Scan155 | Confirmation of a wire from Royce to Hives cancelling the need for a 'Twenty' car for a London trip. | ||
| View original record | ORIGINAL CONFIRMATION OF WIRE. HIVES. ROYCAR. DERBY. WW. 11.6.29. XS770 DO NOT SEND TWENTY. FOR LONDON TRIP. AM USING CAR HERE. ROYCE. | ||
| Scan156 | Excessive flexibility of a 20HP side spare wheel carrier and requesting an investigation. | ||
| View original record | HS. FROM DA. ORIGINAL DA4/M12.6.29. 20HP. SIDE SPARE WHEEL CARRIER. X5600 With reference to the double arm carrier on the car which has just gone to France, we thought that it was too flexible. This… | ||
| Scan157 | Scheme 2907 for a silent 3rd speed gearbox using a single and double helical arrangement. | ||
| View original record | BY. FROM DA. Copy to SG. HS. ORIGINAL GEARBOX WITH SILENT 3rd. SPEED. X8310 X7310 X4510 We send herewith N. scheme 2907. shewing the arrangement of a single and double helical 3rd. speed in a standard… | ||
| Scan158 | Scheme 2908 for a rear spare wheel carrier suitable for medium-length bodies. | ||
| View original record | BY. FROM DA. SECRET ORIGINAL DA1/M15.6.29. Copy to SS. HS. SS. SPARE WHEEL CARRIER. X5600 We send herewith N. scheme 2908. shewing the rear spare wheel carrier carrying the wheel aft of the rear cross… | ||
| Scan159 | Concluding the cause of a broken 20HP exhaust manifold and recommending a fix. | ||
| View original record | HS. FROM E. E2/M17.6.29. Copy to SG. BY. ORIGINAL re. 20HP. EXHAUST MANIFOLD. X5230. We conclude from GWH/13.6.29. that the exhaust pipe broke from restricted movement rather than the load due to… | ||
| Scan160 | Proposed modifications for the 20HP and SS starter carburettors. | ||
| View original record | FROM E. Copy to HS. ORIGINAL SECRET. E1/M22.6.29. X7280 X5280 SS. & 20HP. STARTER CARBURETTERS. We sent you a memo. - R2/M15.6.29. to HS. - in answer to yours on the above question, and we now attach… | ||
| Scan161 | Suggestions for increasing the stiffness of the 20HP side spare wheel carrier. | ||
| View original record | BY. FROM DA. Copy to SS. HS. ORIGINAL SECRET. DA1/M22.6.29. 20HP. SIDE SPARE WHEEL CARRIER. X5600 We send herewith N. scheme 2914. on which we have indicated some suggestions for increasing the… | ||
| Scan162 | Experimental use of a new 20HP auto friction damper flywheel for the 'China' chassis. | ||
| View original record | BY. FROM E. Copy to SG (Struck through) HS. ORIGINAL SECRET E2/M22.6.29. 20HP. AUTO FRICTION DAMPER FLYWHEEL. x5300 x5010 x9300 x634 We send you herewith drawing LeC. 2719. giving particulars of the… | ||
| Scan163 | Secret memo discussing the adoption of a longer frame with two steering options, 'D' and 'E', and the development of the 'Japan' chassis. | ||
| View original record | SG. } FROM R. HS. } BY. } Copy to LHS. " WOR. " C. ORIGINAL SECRET. INDIA - NOT JAPAN. R1/M24.6.29. X5380 As soon as ever possible adopt the 3" longer frame, 19" from the road, with two steerings: (a)… | ||
| Scan164 | First impressions report on the performance and characteristics of a 20HP Allweather car, chassis 16-G-4. | ||
| View original record | [Stamped: ORIGINAL] [Stamped: SECRET.] HS. } FROM R. R4/M26.6.29. [Struck through: BY.] } [Struck through: C.c. to SG. WCR. PN] 20HP. ALLWEATHER - 16-G-4. [Handwritten: x5000 / x5830] This car has the… | ||
| Scan165 | Suggestions for stiffening the 20HP side spare wheel carrier. | ||
| View original record | BY. HS. } FROM DA. ORIGINAL DA2/M26.6.29. re. 20HP. SIDE SPARE WHEEL CARRIER. X 5680 With reference to the information from France sent under cover of HS/LG24629., and HS/LG21629., we have sent… | ||
| Scan166 | Secret memo regarding a fix for an engine 'fuss or roar' by modifying the carburetter. | ||
| View original record | Se. FROM R. Copy to WOR. " HS. " BT. " FW. " CG. ORIGINAL SECRET. R5/M26.6.29. x7770. x7080 SS. - re. FUSS OR ROAR OF THE ENGINE. We cannot account for this other than by the more vigorous carburetter… | ||
| Scan167 | Extra oil on engine startup, modifications to 20HP and SS starter carburetters, and carburetter positioning. | ||
| View original record | BY. FROM E. C. to SG. WOR. HS. RD ORIGINAL CAR PISTONS AND STARTER CARBURETTERS. E1/M27.6.29. x7280 x5280. Inreply to your query BY7/N21629., we have no instructions to do any design work on R's… | ||
| Scan168 | Design objectives for SS. Invar strut pistons. | ||
| View original record | FROM E. Copy to HS. ORIGINAL SECRET. E3/M27.6.29. SS. INVAR STRUT PISTONS. X7040. shewing the above. We send you herewith Lec. 2729. and 2730., The objects of this design are to overcome piston knocks… | ||
| Scan169 | Vehicle performance issues including steering, engine roughness, and carburetter adjustments. | ||
| View original record | HS. FROM R. ORIGINAL SECRET. S. to SC. WOR. OY. [crossed out] " " Mr FULLER [crossed out] " " BY. EN. FR. [crossed out] " " C - D - E [crossed out] SS. (OR NEW NAME SUCH AS PHANTOM 2.) R2/M28.6.29.… | ||
| Scan170 | Reducing the offset for the 'JAPAN' hypoid rear axle and correcting a naming error on related schematics. | ||
| View original record | BY. FROM DA. Copy to HS. ORIGINAL SECRET. DA2/M28.6.29. x2066 'JAPAN' HYPOID REAR AXLE. Mr. Royce wishes to reduce the offset from 1" to .850", which is equivalent to the 1" offset on the SS. axle. We… | ||
| Scan171 | Proposed changes to the 20HP steering column and pedal positions. | ||
| View original record | ORIGINAL BY. FROM DA. C. to HS. 20HP. STEERING COLUMN. x5430. x5470. With reference to BY5/G26629., we have already gone into the question of the proposed new positions, and send you herewith N.… | ||
| Scan172 | 20HP Steering Columns, sending a document copy and two drawings. | ||
| View original record | ORIGINAL FROM DA. C. to HS. 20HP. STEERING COLUMNS ETC. DA2/M29.6.29. x5430. We send herewith a copy of EV1/26629., to R., together with the two drawings referred to, namely, N. schemes 2915/6. DA. | ||
| Scan173 | Cause of high-speed vibrations in cars due to recent performance increases. | ||
| View original record | HS. FROM R. ORIGINAL SECRET. R5/M1.7.29. Copy to SG. " RN. " G. SS. AND INDIA. X7770. X5770. We have lately made our cars go at least 10% faster, and with the same or lower gears, hence engine speeds… | ||
| Scan174 | Issues and potential solutions for an SS exhaust system, including noise, cracking, and cooling methods. | ||
| View original record | HS. FROM R. [C.c. to SS.] (crossed out) [ WOR] (crossed out) [ DY] (crossed out) ORIGINAL SECRET. R4/M1.7.29. X7230. SS. EXHAUST. We are very definitely against wrapping the exhaust in asbestos, and… | ||
| Scan175 | The requirements for purchasing a La Salle car for testing its synchro-mesh gear, clutch, and engine. | ||
| View original record | HS. FROM R. C. to SG. ORIGINAL LE SALLE ENGINE. Y3531 An up-to-date La Salle car means one equipped with Synchro-mesh change gear. You should be able to purchase at about £700 or £800 a saloon car… | ||
| Scan176 | Rectifying an unpleasant cracking noise from the SS exhaust system. | ||
| View original record | HS. FROM E. Copy to SC " " BY. ORIGINAL SECRET. SS. EXHAUST. E2/M2.7.29. x7230. It is concluded that the unpleasant cracking noise from the exhaust is caused not by the manifold sliding on its joint… | ||
| Scan177 | Delay of a standardisation sheet for Side Wheel Carriers pending test results. | ||
| View original record | HS. FROM DA ORIGINAL DA2/M8.7.29. STANDARDISATION SHEETS. x3066 With reference to HS/LG5729., standardisation sheet X.5600. Side Wheel Carriers, is held up pending a report from the Exp. Dept. as to… | ||
| Scan178 | Battery accessibility on the 20HP model for a specific body type. | ||
| View original record | BY. FROM DA. Copy to HS. EFC. ORIGINAL DA1/M8.7.29. BATTERY ACCESSIBILITY. X 5535 With reference to BY6/G5729., and EFC3/AD2729., as we have not altered the battery the question of accessibility in… | ||
| Scan179 | Design improvement for the Bijur Pump cover to prevent it from flying off under pressure. | ||
| View original record | HS. FROM DA. ORIGINAL. DAL/M10.7.29. x 3806 DESIGN OF BIJUR PUMP. With reference to HS/GY2/MJ8729., we will certainly go into the question of improving the method of holding down the cover. For one… | ||
| Scan180 | Secret memo discussing faults with a Bentley car, specifically a jellied radiator and defective steering. | ||
| View original record | HS. } FROM R. C to SC WOR SECRET. ORIGINAL R2/M10.7.29. X3805. X7770. re. SS. AND BENTLEY. HS. says the Bentley had many faults, (and we do not wish one purchased.) Amongst other faults the radiator… | ||
| Scan181 | Secret memo discussing an exhaust roar issue, proposing a new type of rear silencer, and mentioning a Bentley car. | ||
| View original record | SC. FROM R. SECRET. R4/M11.7.29. C. to HS. WOR. [Strikethrough] DY. [Strikethrough] SS. EXHAUST. ORIGINAL [Stamped] X'/230. Re. SS. I feel certain the roar is due to the unsuitable exhaust system, but… | ||
| Scan182 | Request from Mr. Royce to trial an experimental rubber-isolated rear gearbox suspension. | ||
| View original record | BY. FROM DA. DA1/M13.7.29. Copy to HS. ORIGINAL SECRET. GEARBOX SUSPENSION. X 5005 Mr. Royce wishes to try the rear gearbox suspension isolated with rubber. We send herewith N. scheme 2925. shewing… | ||
| Scan183 | Sending a car to Derby for piston replacement and its subsequent performance. | ||
| View original record | SG. FROM R. Copy to HS. SECRET. ORIGINAL 18-EX. R5/M16.7.29. x7040. x7770 With reference to the above car, which I promised to send to London on Monday last, I decided after all to send it to Derby as… | ||
| Scan184 | Confirmation of a telegram arranging a meeting. | ||
| View original record | CONFIRMATION OF TELEGRAM. ORIGINAL WW. 22. 7. 29. ROWLEDGE HIVES. ✓ ROYCAR. DERBY. CAN SEE YOU HERE WEDNESDAY TWENTYFOURTH. ROYCE. | ||
| Scan185 | Modifications to the crankshaft and wheelcase for an improved slipper flywheel and spring drive. | ||
| View original record | FROM E. Copy to HS. SECRET. ORIGINAL E2/M26.7.29. x4300. x7010. SS. IMPROVED SLIPPER FLYWHEEL AND SPRING DRIVE. We send you herewith LeC. 2739. shewing the above. The crankshaft for this can be made… | ||
| Scan186 | Proposed modifications to an SS exhaust system, including a new silencer and pipe diameter reduction. | ||
| View original record | PT. FROM DA. Copy to SG. HS. SECRET. XY230 ORIGINAL DA1/M26.7.29. SS. EXHAUST SYSTEM. Herewith we send N. sch. 2925. shewing the proposed silencer with the cutout valve at the front end of the central… | ||
| Scan187 | First drawings for an experimental epicyclic 3rd speed gearbox. | ||
| View original record | FROM DA. Copy to HS. EXPERIMENTAL EPICYCLIC 3rd. SPEED GEARBOX. ORIGINAL DA2/M26.7.29. x5640 We send herewith N. schemes 2926/7. being the first drawings of this gear, to enable you to commence work… | ||
| Scan188 | Effects of increasing the water space between radiator tubes. | ||
| View original record | HS. FROM DA. DA2/M13.8.29. ORIGINAL RADIATORS. X1066. With reference to the question of the water space between the radiator tubes, increasing this in the manner suggested does of course reduce the… | ||
| Scan189 | Modifications to the SS exhaust system, including a new expansion box and reduced pipe diameter. | ||
| View original record | FROM DA. Copy to HS. SECRET.. SS. EXHAUST SYSTEM. x4/230 We send herewith N. scheme 2932., shewing a ribbed cast aluminium front expansion box. The pipe diameter has been reduced to 2 1/2" outside in… | ||
| Scan190 | Failed modification to the clutch trunnion lubrication system and the dispatch of a replacement nozzle for a 20HP model. | ||
| View original record | HS/RM. FROM DA. ORIGINAL DA1/M20.8.29. XY480 XS300. With reference to HS/RM2/MJ17829., the idea of leaving the clutch trunnion out of the central lubrication was that the thrust bearing was made oil… | ||
| Scan191 | List of required alterations and improvements for a 20HP car, model 16-G-4. | ||
| View original record | SC. } FROM R. RH. } Copy to WOR. " HS. " EH. " DT. X 5440 SECRET ORIGINAL RL/M20.8.29. WW. 20HP. - 16-G-4. There are some alterations to be made to the above car before I wish to pass it on as… | ||
| Scan192 | Design differences and suggestions for the 20HP side spare wheel carrier. | ||
| View original record | HS. FROM DA. ORIGINAL DA1/M22.8.29. 20HP. SIDE SPARE WHEEL CARRIER. x5600. In reply to HS/RM2/MJ19829., we sent you a drawing - N. scheme 2914. dated 26/6/29. - which was the result of a discussion… | ||
| Scan193 | Requesting a report on the position of the freewheel in the sideshaft on the 20HP gearbox. | ||
| View original record | HS. FROM DA. DA2/M22.8.29. ORIGINAL X5310, 20HP. TRANSMISSION. We should be glad to have a report on the position of the freewheel in the sideshaft on the 20HP. gearbox, (N. schemes 2767. 2881. etc.)… | ||
| Scan194 | Design of the 20HP transmission, specifically the freewheel and clutch arrangement. | ||
| View original record | HS. FROM R. & DA. Copy to DY. 20HP. TRANSMISSION. [Handwritten notes:] x5310 x5300 xY300 - [Stamp:] ORIGINAL We should like a report on the position of the freewheel in the sideshaft on the 20HP.… | ||
| Scan195 | Modifications and suggestions for the 20HP side wheel carrier. | ||
| View original record | FROM DA/EV. Copy to - HS. ORIGINAL DA/EV1/M28.8.29. x5600. 20HP. - re. SIDE WHEEL CARRIER. TWO ARM TYPE. We thank you for your BY/CGH4/G23829., and note that by accident the raised step irons have… | ||
| Scan196 | Design modifications for the 20HP side wheel carrier, including a sketch with dimensions. | ||
| View original record | HS. } FROM DA. DA1/M29.8.29. x5600 x7600 20HP. SIDE WHEEL CARRIER. We thank you for HS/RM3/MJ26829. Our impression that the SS. carrier was perfectly rigid and strong was obtained partly from actual… | ||
| Scan197 | Wheel arch clearance issues and fouling on 'WJ' series cars, with test results and proposed modifications. | ||
| View original record | ORIGINAL. SECRET. DA/EVL/W4.9.29. -C&T- } FROM DA/EV. Copy to Mr. CY/HNG. " " JG. " " HS/RM. WHEEL ARCH CLEARANCES. "WJ" SERIES. x7380 7830 At several of the coachbuilders in London the rolling test… | ||
| Scan198 | Modifications to wheel arch clearances and revised instructions to coachbuilders. | ||
| View original record | (2) ORIGINAL. see this should ensure a reasonable margin of safety for normal conditions, but we should not be frightfully agitated if some cars got through without this modification. IMMEDIATE ACTION… | ||
| Scan199 | Drawing showing a revised arch with notes on a new clearance for the axle. | ||
| View original record | NOTE ORIGINAL THIS NEW CLEARANCE SHOULD ONLY EXTEND 4.5 INS EITHER SIDE OF THE AXLE, WHEN IT CAN HAVE MERGED INTO THE ORIGINAL ONE REVISED ARCH 21.000 7.500 4.750 LEVEL TOP OF SUBFRAME FIG 1. | ||
| Scan200 | Geometric investigation into rear wheel arch clearance issues on the new SS cars compared to the Phantom. | ||
| View original record | SECRET. ORIGINAL. -BY: ) FROM DA/EV. HS. ) Copy to GX. HO. " JG. GY/MNG REAR WHEEL ARCH CLEARANCE. We have reported to you in another memo. some troubles we have experienced with the new SS. cars at… | ||
| Scan201 | Wheel arch clearance, suspension oscillation, and rolling tests for the Phantom model. | ||
| View original record | (2) ORIGINAL springs themselves prevent excessive rolling because they refuse to give way sideways after a certain amount. When looking at the Phantom however we found that oscillating about the… | ||
| Scan202 | Proposal to adapt existing 20HP and 45HP car dynamos into 1/4HP, 50-volt motors. | ||
| View original record | EFC. FROM R. ORIGINAL R2/N/17.9.29. X2048 You have two dynamos for the 20HP. and 45HP. cars that could be used as motors, if shunt wound. I am proposing to adopt 50 V. instead of present 24. I want… | ||
| Scan203 | Modifications to the SS. Exhaust System and its spring anchorage. | ||
| View original record | BY. FROM DA. Copy to SG. " HS. ORIGINAL SS. EXHAUST SYSTEM. DA1/M20.9.29. X7230. Replying to BY/CGH16/G13929., we send herewith N. scheme 2947. shewing the modifications we suggest should be made to… | ||
| Scan204 | Fitting of an epicyclic third speed gear to an experimental car, including required modifications. | ||
| View original record | BY. FROM DA. Copy to SC. HS. EPICYCLIC THIRD SPEED GEAR. x7640. x7310 x525 We send herewith N. sch. 2946. shewing the gear lever on the box. It has been set out as before to suit EAC. 7. - 14-EX, the… | ||
| Scan205 | Alterations to the epicyclic 3rd speed gear clutch. | ||
| View original record | BY. FROM DA. Copy to SG. HS. EPICYCLIC 3rd. SPEED GEAR. DA2/M21.9.29. x7640. x523. x7310. We send herewith N. sch. 2949., a diagram of the forces in the controls, which we think will be self… | ||
| Scan206 | Development of sports cars, specifically the Phantom II and 20HP models, including body type and power enhancements. | ||
| View original record | --SC.-- (Strikethrough) --C.-- (Strikethrough) HS. --DY.-- (Strikethrough) FROM R. Copy to --WOR.-- (Strikethrough) " " --Bde-- (Strikethrough) " " --E.-- [STAMP] ORIGINAL SPORTS CARS. PHANTOM ll. &… | ||
| Scan207 | Modification to the dashboard pump to prevent oil leaks and improve assembly. | ||
| View original record | BY FROM DA. Copy to ee HS. x3806 DA1/M27.9.29. ORIGINAL CENTRALISED CHASSIS LUBRICATION. DASHBOARD PUMP. With reference to the question of preventing oil spilling down the rear side of the dashboard,… | ||
| Scan208 | Recent 'Japan' improvements to the 20HP clutch. | ||
| View original record | BY. FROM DA. Copy to SG. HS. 20HP. CLUTCH. ORIGINAL We send herewith N. scheme 2957.., shewing some of the recent 'Japan' improvements in the clutch applied to the present/standard, that is to say,… | ||
| Scan209 | Ongoing issues with rear wheel arch clearances on the Phantom II model. | ||
| View original record | HS. } FROM DA/EV. Copy to -- HO. " -- SG. " -- MNG. " -- G- PHANTOM 11. REAR WHEEL ARCH CLEARANCES. x9380. x7830. In our DA/EV1/M4929. we suggested that the top flange of the subframe should be cut… | ||
| Scan210 | Requirements and proposed schemes for induction pipe heating on the Phantom II. | ||
| View original record | HS. FROM R. ORIGINAL R3/M4.10.29. Copy to SG. " BY. " OY. x7910 x7230. PHANTOM 11. INDUCTION PIPE HEATING. With reference to the requirement of exhaust heating for the carburetter on Phantom 11., the… | ||
| Scan211 | Scheme for thermostatically operated radiator shutters and modifications for the 20HP chassis. | ||
| View original record | BY. FROM E. Copy to SS. HS. ORIGINAL SS. RADIATOR SHUTTERS. x 7250 x 5250 x 3499. We send you herewith LeC. 2750., shewing a scheme for thermostatically operating the radiator shutters on SS. A latch… | ||
| Scan212 | Considerations and strategy for developing supercharged car engines, comparing different cylinder configurations and referencing competitors. | ||
| View original record | HS. } FROM R. E. } RG. } Copy to - SG. " - WOR. " - C. " - BY. " - F. SECRET. ORIGINAL CAR SUPERCHARGERS. If it is coming that an ordinary fast car will be fitted with a supercharger, it will be… | ||
| Scan213 | Comparison of the 20HP gearbox with a freewheel in the sideshaft against the De Lavaud scheme. | ||
| View original record | HS. FROM DA. ORIGINAL DA1/M11.10.29. X5770 X4474 X5310 20HP. GEARBOX. FREEWHEEL IN SIDESHAFT. It will have been observed that this arrangement does not function exactly the same as the De Lavaud and… | ||
| Scan214 | Phantom II's performance at Brooklands, focusing on achieving higher speeds through axle ratio changes and ride quality improvements. | ||
| View original record | HS.) FROM R. EP.)} [Strikethrough] DA.)} [Strikethrough] Copy to SG. " WOR [Strikethrough] " O [Strikethrough] R2/M11.10.29. x7770. x788. x7350. PHANTOM 11. BROOKLANDS RECORD. The speeds of 80 and 83… | ||
| Scan215 | Proposed performance improvements for the 20HP car engine and chassis. | ||
| View original record | HS. FROM R. C. to SG. WOR. BY. RHG. [text is crossed out] ORIGINAL. 20HP. CARS (CONTINUED.) R3/M11.10.29. X5770 X5090 X5771 The third item - i.e. to improve the performance of the 20HP. - is as… | ||
| Scan216 | New radiator filter designed to collect sediment from the cylinder block. | ||
| View original record | HS. FROM E. Copy to SG. [Strikethrough] Copy to BY. [Strikethrough] ORIGINAL SS. RADIATOR FILTER. x3250. x3050. We send you herewith LeC. 2753., shewing a filter R. would like you to try for… | ||
| Scan217 | Inquiring about the status and approved position of a front numberplate. | ||
| View original record | HS. FROM DA. Copy to BY. ORIGINAL DA1/M15.10.29. X7770 SS. FRONT NUMBERPLATE. With reference to HS/AJL1/MJ20929., would you please tell us what is the state of the number-plate at the present moment.… | ||
| Scan218 | Modification to the Phantom II clutch. | ||
| View original record | BY. FROM DA. Copy to SC. HS. ORIGINAL PHANTOM II. CLUTCH. DA4/M15.10.29. X7480. X3409. Herewith we send N. scheme 2967.. shewing the ferodo riveted to the driven member of the clutch, and the… | ||
| Scan219 | Confidential and secret memorandum regarding the future strategy and potential improvements for the 20HP chassis. | ||
| View original record | [crossed out] S.S. [/crossed out] FROM R. [crossed out] C. to C.C. [/crossed out] C. to [crossed out] FOR. HS. [/crossed out] [crossed out] BA. E. [/crossed out] CONFIDENTIAL & SECRET. [STAMP]… | ||
| Scan220 | The Sports Phantom II rear axle, discussing a revision to the bevel axle and comparing it with a hypoid axle design. | ||
| View original record | BY. (crossed out) FROM DA. Copy to SG. (crossed out) HS. ORIGINAL (stamped) SPORTS PHANTOM 11. REAR AXLE. x7350 x2066 We send herewith N. scheme 2971., shewing a revision of the original temporary… | ||
| Scan221 | Sending N. scheme 2972, detailing the 13/41 hypoid gears required for the Sports Phantom rear axle. | ||
| View original record | BY. FROM DA. Copy to cc. HS. SPORTS PHANTOM REAR AXLE. DA1/M25.10.29. x) 350 x2066 ORIGINAL. Herewith we send N. scheme 2972. shewing the 13/41 pair of hypoid gears which it was decided on Wednesday… | ||
| Scan222 | Wheel arch clearances concerning rear seats, tyre rubbing, and potential modifications. | ||
| View original record | SC. } FROM R. C. } EY. } Copy to - HS. " R6/M26.10.29. 1 X5380. X7380. WHEEL ARCH CLEARANCES. ORIGINAL With reference to the rear seats, no doubt the coachbuilders have already seen the possibility of… | ||
| Scan223 | Report from Paris comparing the acceleration of American versus British chassis. | ||
| View original record | BA. } FROM R. HS. } C. to SG. BY. Mr. Feller. WOR. OY. ORIGINAL R5/M26.10.29. X772 X1725 re. REPORT FROM PARIS. ACCELERATION - AMERICAN VERSUS BRITISH CHASSIS. I believe that the American RR. bodies… | ||
| Scan224 | Proposing tests on frames with increased vertical stiffness for the Phantom II and 25HP models to improve radiator steadiness and steering. | ||
| View original record | DA. FROM R. Copy to SG. HS. DH. TO IMPROVE RADIATOR STEADINESS AND STEERING. I want to test a frame which has very great vertical stiffness. For Phantom ll. it would be the 8" frame, without tie-rods.… | ||
| Scan225 | Potential modifications to the 25HP radiator and lowering the transmission line using a hypoid back axle. | ||
| View original record | FROM R. Copy to HS. R2/M26.10.29. ORIGINAL 25HP. RADIATOR. It is hoped that we shall be able to drop the bottom of the 25HP. radiator to give more area, and to improve the appearance. (DA. is working… | ||
| Scan226 | Required specifications for a hypoid gear on the back axle of the Phantom II Sports Car. | ||
| View original record | DA. FROM R. Copy to SG. " BT. " HS. PHANTOM II. SPORTS CAR. ORIGINAL [Stamp] R1/M26.10.29. X7770 [Handwritten] X2066 [Handwritten] X7350 [Handwritten] It is decided that a hypoid will be required for… | ||
| Scan227 | Technical memorandum discussing the differences between American and English car springing and damping systems. | ||
| View original record | HS. } FROM R. Copy to SD. BY. ORIGINAL R4/M26.10.29. x3900 x7722 x7410 x8410 AMERICAN & ENGLISH CAR SPRINGING. With reference to the difference in the American and English springing naturally there… | ||
| Scan228 | Scheme 2974 for an SS Rear Axle with an 11/41 hypoid ratio. | ||
| View original record | BY. FROM DA. Copy to SG. HS. SS. REAR AXLE ORIGINAL DA1/M26.10.29. x7350 x2066 We send herewith N. scheme 2974., shewing particulars of the existing standard 11/41. hypoid ratio. This drawing is made… | ||
| Scan229 | Design options for the Phantom II exhaust heated throttle and silencer system. | ||
| View original record | HS. } FROM R. BY. } Copy to SG. " WOR. " DA. " E. ORIGINAL R3/M28.10.29. PHANTOM 11. EXHAUST HEATED THROTTLE. x7910 I am very pleased to hear that the simple and original scheme is so satisfactory. I… | ||
| Scan230 | Proposal to supercharge the 'twenty' model engine. | ||
| View original record | TO. [crossed out] FROM R. C. to C.G. [crossed out] P.N. [crossed out] H.S. B.Y. [crossed out] re. SUPERCHARGED 'TWENTY'. [Stamped 'ORIGINAL'] [Handwritten annotations in top right corner]: x5770 x5771… | ||
| Scan231 | Fitment issues of a larger Dunlop tyre on a Phantom II spare wheel carrier. | ||
| View original record | BY. FROM DA/EV. Copy to - HS. ORIGINAL DA/EV2/M30.10.29. x7600. x4650 -> PHANTOM II. SPARE WHEEL CARRIERS. Thank you for BY2/G241029. We are surprised to find that the centre of the wheel carrier is… | ||
| Scan232 | Brake performance issues on the Phantom II, specifically pedal feel, sponginess, and clearances. | ||
| View original record | HS. FROM DA. Copy to BY [struck through] EF. DA1/M30.10.29. x74~0 x7350 [STAMP] ORIGINAL PHANTOM 11. BRAKES. With reference to EP5/H241029., the phenomenon of the pedal coming down on to the boards… | ||
| Scan233 | Quality and appearance of chromium plating on parts from Derby. | ||
| View original record | HY. } HS. } FROM R. DY. } Copy to SG. " WOR. " DA. " E. ORIGINAL. re. CHROMIUM PLATING. R1/M 30.10.29. X4442. Regarding our specimens from Derby, I thought the colour good - not so blue as one often… | ||
| Scan234 | Arrangement of a 3-wire, 50V electrical system with a two-speed armature. | ||
| View original record | EFC. FROM R. ORIGINAL R1/M31.10.29. x2048. Many thanks for your EFC2/AD281029., re. 50 and 25 V. cotors. I am arranging for a 3 wire system, 50 V. excitation, 25 and 50 V. two speed armature. I have… | ||
| Scan235 | Proposal for an integrated starter protection and lubrication indicator system for the Phantom II model. | ||
| View original record | EFC. } FROM R. & E. HG. } DY. } ORIGINAL R2/M31.10.29. Copy to SG. " G. " DA/EH " AND PHANTOM 11. STARTER PROTECTION, X4515. PLUS LUBRICATION INDICATOR. If we had a small syphon tube controlled by… | ||
| Scan236 | Modifications for the introduction of a larger 2' diameter crankpin for the 20HP engine. | ||
| View original record | FROM E. C. to HS. 20HP. LARGER CRANKPIN. We send herewith LeC. 2756/7. shewing the modifications necessary to the 20HP. engine for the introduction of a 2" dia. crankpin. This drawing also shews a… | ||
| Scan237 | Power increase modifications for the 'China' 25HP engine, including timing, valve, and pipe specifications. | ||
| View original record | HS. FROM R. & E. SECRET & URGENT. R1/M4.11.29. C/c to SG. WCR. BY. re. "CHINA" ENGINE 25HP. POWER INCREASE. X5771 X1725 Referring to your report HS/ACL1/AD21129., we do not think there is much wrong… | ||
| Scan238 | Particulars of a camshaft and valve spring. | ||
| View original record | (2) ORIGINAL We find that we sent you particulars of the camshaft and valve spring 12 months ago, probably in conjunction with 'Japan' - LeC. 2610/II. respectively - which give you the camshaft and… | ||
| Scan239 | Modified bonnet, radiator, and dash for the 25HP chassis. | ||
| View original record | SECRET. TO EH. FROM DA/EV. ORIGINAL COPY TO WF. HS. MODIFIED BONNET, RADIATOR & DASH. 25.HP. Handwritten: x5260. x5250. x5500. x5-770. We send herewith N.Sch.2980. shewing a modified bonnet radiator… | ||
| Scan240 | Engine improvements for 'China' based on modifications previously made for 'Japan'. | ||
| View original record | HS. } FROM R. BY. } Copy to SG. Copy to WOR. re. "CHINA". ORIGINAL R2/M5.11.29. x5770. I believe that all you require to improve this has already been done for 'Japan'. For instance, a year ago we… | ||
| Scan241 | Scheme for the automatic lubrication of the Phantom II clutch spigot bearing from the gearbox. | ||
| View original record | BY. FROM DA. Copy to SG. Copy to HS. ORIGINAL DA2/M6.11.29. x7980 x7480 x872 PHANTOM 11. LUBRICATION OF CLUTCH SPIGOT BEARING. Herewith we send N. scheme 2973. shewing a method of lubricating the… | ||
| Scan242 | Modifications to the Phantom II clutch, including a proposal from Mr. Royce. | ||
| View original record | BY. FROM DA. Copy to SS. HS. PHANTOM II CLUTCH ORIGINAL DA1/M6.11.29. x748a x 3409. We send herewith N. scheme 2975., shewing a modification to the Phantom clutch in connection with the proposal to… | ||
| Scan243 | Modifications to the 20/25HP clutch, including the use of Ferodo lining. | ||
| View original record | BY: FROM DA. Copy to SG. Copy to HS. DA3/M6.11.29. ORIGINAL X5300 X3409 20/25HP. With reference to the suggestions to use the ferodo on the driven member of the existing 20/25HP. clutch, we send you… | ||
| Scan244 | Modifications for automatic lubrication of the 20/25HP 'JAPAN' clutch spigot bearing, suggesting experimental application. | ||
| View original record | BY. FROM DA. Copy to SG Copy to HS DA4/M6.11.29. ORIGINAL X5300. X5480. X872. "JAPAN" CLUTCH:LUBRICATION OF CLUTCH SPIGOT BEARING. We send herewith N. sch. 2977. shewing modifications to the existing… | ||
| Scan245 | 20HP scuttle isolation and revised subframe for model 14-G.4, requesting prints for coachbuilders. | ||
| View original record | BY. FROM DA/EV. ORIGINAL DA/EV1/M7.11.29. Copy to SG. [text is struck through] Copy to HS. 20HP. SCUTTLE ISOLATION. REVISED SUBFRAME FOR 14-G.4. X5380 Y4613. We send herewith N. sch. 2981. shewing the… | ||
| Scan246 | Modifications for dropping the 20HP radiator 2 inches into the frame. | ||
| View original record | BY. FROM DA. Copy to SC. Copy to HS. DA1/M8.11.29. 20HP. RADIATOR DROPPED INTO FRAME. X5250 X5380 We send herewith N. scheme 2979., shewing the radiator dropped 2" into the frame. We have endeavoured… | ||
| Scan247 | Safety issue with the 20HP front axle control during braking. | ||
| View original record | HS. FROM DA. C. to EP. C. to HM. 20HP. FRONT AXLE CONTROL. ORIGINAL When you were here last you said that there were still cases of people going off the road due to the axle turning over during… | ||
| Scan248 | Arguing against the purchase of a 2-litre Alfa Romeo to instead focus on improving the 20HP model. | ||
| View original record | HS. FROM R. C to SG " WDR. " RG. " BY. re. ALPHA ROMEO. I do not consider we ought to spend £900 in purchasing the 2 litre car, of any make at the moment. Why? Because we have so much to do that we… | ||
| Scan249 | Dispatch of an inlet and exhaust manifold, and a cylinder head for the 'China' project. | ||
| View original record | DY. FROM E. Copy to SG. [crossed out] HS. ORIGINAL E1/M9.11.29. "CHINA". X5770 X5230. We send herewith LeC. 2758. - Inlet and exhaust manifold, and LeC. 2759. - Cylinder head, for improved 'China'. E. | ||
| Scan250 | Schematics for a Hooper Faux Cabriolet Phantom II for the Riviera Trials. | ||
| View original record | TO EY. FROM EV. COPY TO SE. HS. ORIGINAL EV2/11.11.29. x7830. x3260. x7120. RIVIERA TRIALS" FAUX CABRIOLET. PHANTOM II. HOOPER. WE SEND HEREWITH N. Sch.2942. & N.Sch.2943. shewing the Hooper Faux… | ||
| Scan251 | Designs for a 20-25HP Windover Open Touring Car for the 1930 Riviera season trials. | ||
| View original record | RECEIVED NOV 12 1929 COPY SG. HS. TO BY FROM EV. REC'D RE 20-25. RIVIERA OPEN TRIALS. WINDOVER. ORIGINAL X 5770. X 5830. We send herewith N.Sch.2939 & N.Sch.2940. showing the Open Touring Car which we… | ||
| Scan252 | Progress update on development projects codenamed 'China' and 'Japan', covering cylinder heads, valves, and a hypoid axle. | ||
| View original record | HS. FROM R. [Struck through: Copy to SC] [Struck through: Copy to WOR.] [Struck through: Copy to BY] "CHINA & "JAPAN"" [Stamped: ORIGINAL] We are very delighted with the progress we are now making… | ||
| Scan253 | Wiring modifications and alternative designs for a starter protection system. | ||
| View original record | EFC. FROM R. Copy to SC. [Struck through] ns. [Struck through] D.Y. [Struck through] I.G. [Struck through] ORIGINAL STARTER PROTECTION. Replying to EFC6/AD61129., I suggest you connect up the green… | ||
| Scan254 | Drawings of two close-coupled body designs for a Phantom II European Propaganda Car. | ||
| View original record | TO HY. FROM EV. COPY TO SG. HS. [strikethrough]OKW.[/strikethrough] RE EUROPEAN PROPAGANDA CAR. PHANTOM II. EV3/11.11.29. [Handwritten] X7770. X7830 X7120. [STAMP] ORIGINAL We send herewith drawings… | ||
| Scan255 | New replacement body for an experimental enclosed limousine on a 20-25HP long chassis. | ||
| View original record | SECRET. TO CX./HN. from EV. COPY TO SG. BY. HS. EV5/11.11.29. X 5830 X5380 ORIGINAL EXPERIMENTAL ENCLOSED LIMOUSINE. 20-25HP. LONG CHASSIS. WE ARE SENDING YOU HEREWITH the original of N.Sch.2969.… | ||
| Scan256 | Causes and potential solutions for brake clanking and sponginess. | ||
| View original record | HS. FROM R. CLANKING OF BRAKE MECHANISM ON RELEASE. ORIGINAL Referring to HS/RM5/AD810 Mr. Hardy says that as far as he can make out the clanking complained of is caused by the front brake gear flying… | ||
| Scan257 | Alternative schemes for a front expansion box for the China exhaust system. | ||
| View original record | BY. FROM DA. Copy to BG. HS. DA1/M15.11.29. Y5230. CHINA EXHAUST SYSTEM. ORIGINAL Herewith we send N. schemes 2983/4. - alternative schemes for the front expansion box of the China exhaust system. The… | ||
| Scan258 | From DA to HS regarding design challenges with the 20HP front axle control. | ||
| View original record | HS. FROM DA. ORIGINAL DA2/M15.11.29. X5420. 20HP. FRONT AXLE CONTROL. Thank you for HS/RM2/AD121129. We are practically certain that we cannot fit axle control until we can drop the axle. Since your… | ||
| Scan259 | Modifications to a Phantom II vehicle for the Prince of Wales. | ||
| View original record | HS. FROM DA/EV. Copy to C RECEIVED NOV 16 1929 ORIGINAL DA/EV10/M15.11.29. X4521. PHANTOM 11. FOR PRINCE OF WALES. The Prince of Wales proposes to carry two wheels aft of the rear cross tube on his… | ||
| Scan260 | Opinion on the insufficient current output of the 20HP dynamo. | ||
| View original record | EFC. } FROM R. HS. (Struck through) BY. (Struck through) Copy to SC. (Struck through) Copy to WOR. (Struck through) ORIGINAL R1/M16.11.29. X5660 X5664 on 16-9-4 20HP. DYNAMO. Judging from my… | ||
| Scan261 | Analysis of test results comparing long and short duration cams on a Standard 20/25HP engine. | ||
| View original record | HS. } FROM R. ~~DY~~ } Copy to ~~SG.~~ Copy to WOR. ORIGINAL STANDARD 20/25HP. x5090. HS' TEST WITH (a) LONG DURATION CAMS 116°. " " (b) SHORT " " 110°. This experiment I think shews that the… | ||
| Scan262 | Trials of longer duration cams and greater tappet clearance on the 25HP 'CHINA' engine. | ||
| View original record | HS. FROM R. Copy to SG [Struck through] Copy to WOR. [Struck through] Copy to RV [Struck through] ORIGINAL [Stamp] 25HP. "CHINA" [Circular Stamp: FEB 1929] Long duration cams should be tried at 110°,… | ||
| Scan263 | Drawing for an exhaust pipe related to immediate modifications for 'ChinaNAL'. | ||
| View original record | RECEIVED BY. FROM E. Copy to SG. Copy to HS. re. IMMEDIATE MODIFICATIONS TO CHINA NAL E1/M18.11.29. J 5230. We send you herewith drawing LeC. 2762., shewing exhaust pipe required for the above. This… | ||
| Scan264 | Alternative methods for modifying the leverage on the Phantom II brakes. | ||
| View original record | HS. } FROM DA. ORIGINAL PHANTOM 2. BRAKES. With reference to the proposal to reduce the direct braking by some 25% by means of increasing the driver lever on the countershaft from 1.375 to 1.725", we… | ||
| Scan265 | Modifications to the body subframe for the 20/25HP long chassis. | ||
| View original record | BY. FROM DA/EV. SECRET. DA/EV1/M19.11.29. Copy to - SG. HS. ORIGINAL x5380 BODY SUBFRAME - 20/25HP. LONG CHASSIS. We send herewith N. schemes 2982/86., shewing the arrangement of the rear floor and… | ||
| Scan266 | Modification options for a 25HP engine and the resulting horsepower outputs. | ||
| View original record | HS. } FROM R. RY. } Copy to SG. Copy to WOR. re. 25HP. ORIGINAL R1/M19.11.29. X5770. We shall have:- (1) China 1. as at present - HP. 57. (2) China 2. modified, using present head - HP. 70. (3) China… | ||
| Scan267 | Letter to Park Ward & Co. commissioning an experimental enclosed limousine for Mr. Royce, detailing various design schemes. | ||
| View original record | Copy to - HS.✔ Copy to CX/HN CONFIDENTIAL. XXXXXXX "CAMACHA". WEST WITTERING. CHICHESTER. 19. Nov. 1929. Messrs Park Ward & Co. ORIGINAL 473 High Rd. Willesden. N. W. 10. X5830 X5380. ATTENTION OF MR.… | ||
| Scan268 | Confidential letter regarding the subframe, floor, and body modifications for a car to be used personally by Mr. Royce. | ||
| View original record | (2) N. scheme 2981. Shews the arrangement of the scuttle armature at the dashboard and its fixing to the front end of the subframe. The standard semi-isolation bolts will be used, but this need not… | ||
| Scan269 | Battery overcharging, dynamo output, the 'green light scheme', and the efficiency of various lighting systems. | ||
| View original record | EFC. MR. BROCK MR. WATSON Copy to - SG. DA/EV. FROM R. ORIGINAL R1/M21.11.29. X4040 X1402 X294 X8780. BATTERY OVERCHARGING. I do not think the device used on your test would suit the car work, because… | ||
| Scan270 | Merits and processes of chromium plating versus nickel silver and Staybrite for various car parts. | ||
| View original record | HY. FROM R. Copy to SG. Copy to BY. Copy to HS. Copy to DA/EV. CHROMIUM PLATING ORIGINAL (stamp) 8442 (handwritten) R2/M21.11.29. Referring to HY4/T141129., I have discussed this matter of plating… | ||
| Scan271 | Causes and potential solutions for radiator blockage. | ||
| View original record | HS. HE. } FROM R. Copy to SC. BY. ORIGINALx BLOCKING OF RADIATORS. R1/M22.11.29. x4516. 40/50. per charge? Is it sodium sulphate, and how much for I think that the trouble is due to vegetable acid… | ||
| Scan272 | Confidential memorandum discussing engine performance, chassis gearing, and modifications for the 20/25HP model. | ||
| View original record | FROM R. E. (crossed out) HS. DA. (crossed out) Copy to SG (crossed out) Copy to WOR. Copy to BY SECRET AND CONFIDENTIAL. ORIGINAL 20/25HP. CHINA, & JAPAN. So far we think there is not sufficient… | ||
| Scan273 | Knocking in 20HP rear shock dampers and potential design changes. | ||
| View original record | BY: FROM DA. C. to R. WOR- [struck through] " B. HS. [STAMPED] DA1/W25.11.29. X5520 re. KNOCKING 20HP. REAR SHOCK DAMPERS. [STAMPED: ORIGINAL] With reference to BY21/N18.11.29., Mr. Royce in… | ||
| Scan274 | Brief memo regarding a suggestion about Phantom II brakes. | ||
| View original record | HS/RM. FROM DA. ORIGINAL DA3/M25.11.29. x7360 x7420. PHANTOM 2. BRAKES. We thank you for your HS/RM2/AD231129., Our letter was by way of a suggestion largely to obtain information. In view of what you… | ||
| Scan275 | Sketch for a new test radiator with cleanable passages and an intercepting self-cleaning filter. | ||
| View original record | E. DA. HS. BY. FROM R. Copy to - SG Copy to - WOR. Copy to - C. ORIGINAL R1/M25.11.29. x P250 x 7250 x 5250 Y4516 I am sending you a sketch of another way of building up a radiator for test, in which… | ||
| Scan276 | Issue with lowering the springs on a 20HP front axle. | ||
| View original record | HS/RM. FROM DA. 20HP. FRONT AXLE. DA2/M26.11.29. X5420. Thank you for your HS/RM2/AD211129. What you seem to prove is that we cannot lower the springs. It appears to be not the drop in the axle but… | ||
| Scan277 | Short memo sending additional information regarding F-type carburettors in the Vee. | ||
| View original record | BY. FROM E. (BY. is struck through) Copy to SG. " RG. (RG. is struck through) " HS. FR. F. CARBURETTERS IN THE VEE. We send herewith LeC. 2765. giving additional information in respect of the above.… | ||
| Scan278 | Design, manufacture, and cost of Phantom II road springs. | ||
| View original record | SG. FROM R. Copy to WOR. Copy to BY. Copy to HS. Copy to DA. ORIGINAL R1/M26.11.29. PHANTOM 2. SPRINGS X740 Replying to your 3G11/E25.11.29., there is no reason for road springs being more expensive… | ||
| Scan279 | Lubrication system for the universal and sliding joints on a 20/25 HP experimental car chassis. | ||
| View original record | HS. FROM DA/EV. SECRET. DA/EVL/M26.11.29. Copy to BY. 20/25 H.P. LONG CHASSIS. ORIGINAL X5770. x5830. x3806. Thank you for HS1/AD221129. We wish to revert to the hexagon oiling plug on the rear… | ||
| Scan280 | Design and standardisation of bonnet locks for the Phantom II. | ||
| View original record | -C. FROM DA/EV. Copy to - BY. Copy to - HS. Copy to - EP. Copy to - JLE. PHANTOM 2. BONNET LOCKS. With reference to the correspondence on this subject we would point out that when we designed the new… | ||
| Scan281 | Design to silence noise in the Phantom 2's exhaust heated induction pipe. | ||
| View original record | ORIGINAL E14/M27.11.29. BY. FROM E. Copy to SG. Copy to HS. PHANTOM 2. EXHAUST HEATED UPTAKE. X7910. X7230. We send herewith LeC. 2766. shewing the above. The object of the design is to silence the… | ||
| Scan282 | Confirming experimental modifications to the Phantom II brake operating gear. | ||
| View original record | BY. FROM DA. Copy to - SG Copy to - HS DA1/M29.11.29. ORIGINAL x7360 PHANTOM 2. - BRAKE OPERATING GEAR. This is to confirm having handed to you yesterday N. scheme 2988. - Damper for the Swinging Arm… | ||
| Scan283 | Two alternative proposals for wider rear foot brake shoes on the Phantom II. | ||
| View original record | [s]DR.[/s] FROM DA. [s]Copy to SG.[/s] Copy to HS. DA2/M29.11.29. [s]ORIGINAL[/s] x7360 x7930 PHANTOM 2. REAR BRAKES. This is to confirm having handed to you yesterday N. scheme 2989. shewing the… | ||
| Scan284 | Design schemes and alternatives for the Phantom II exhaust heated throttle. | ||
| View original record | HS. } FROM R. BY. Copy to SG. Copy to WOR. ORIGINAL PHANTOM 2. EXHAUST HEATED THROTTLE. R1/M29.11.29. x7910. x7230. We agree that this should be done universally as soon as possible on all cars. We… | ||
| Scan285 | Inquiry requesting a report on the nature of troubles with shock dampers, specifically knocking and wear. | ||
| View original record | HS. FROM DA. ORIGINAL SHOCK DAMPERS. X7520 Y5520 As we are going to do some design work on the shock dampers to improve their life, and remove the knock trouble,we should appreciate a report giving… | ||
| Scan286 | Suggestions for the 20HP Hypoid Axle, specifically concerning the pinion thrust bearing nut and comparison to the Phantom II. | ||
| View original record | BY. FROM DA. Copy to SG. Copy to HS. DA1/M2.12.29. +2066 x5350. 20HP. HYPOID AXLE. With reference to BY11/G111129., we send herewith N. scheme 2990., shewing a suggestion for providing the nut taking… | ||
| Scan287 | Proposal for a hydraulic test rig for connecting rods and other components requiring alternate stress testing. | ||
| View original record | HS. FROM R. [Struck through] Copy to SC. [Struck through] Copy to WOR. [Struck through] Copy to BY. handwritten: hvr. johnson stamp: ORIGINAL re. CON. ROD & OTHER TESTING. handwritten: 83859 X4486..… | ||
| Scan288 | Alternative design for a Phantom II exhaust-heated carburettor uptake using a fishtail inlet to dampen noise. | ||
| View original record | DY: FROM E. ORIGINAL E1/M3.12.29. Copy to SG. (SG is struck through) Copy to HS. PHANTOM 2. EXHAUST HEATED CARBURETTER UPTAKE. 87910. the above. We send you herewith LeC. 2767. shewing This design is… | ||
| Scan289 | Modifications to a subframe for a Park Ward Twenty to accommodate a hypoid axle. | ||
| View original record | (HS) BY. FROM DA/EV. DA/EV1/M3.12.29. Copy to - HS. 20/25 EXP. ENCLOSED LIMOUSINE - 14-G-4. x5380 x2066 We wired you today as follows "AGREE TO MAKING "SUBFRAME FOR PARK WARD TWENTY TO SUIT HYPOID… | ||
| Scan290 | Car dynamo output and potential solutions for undercharged batteries in winter. | ||
| View original record | EFC. } FROM R. HS Copy to PN. ORIGINAL. CAR DYNAMO OUTPUT. My impression is that we shall always get complaints of undercharged batteries, and some users, who in winter use their cars for so much… | ||
| Scan291 | Proposal outlining improvements for carburettors, suggesting a hybrid design. | ||
| View original record | HS. BY. Mr. CLAREMONT. } FROM R. R3/M3.12.29. [Handwritten Notes] x7080. x5080. Copy to SG. WOR. E. [STAMP: ORIGINAL 1929] [STAMP: RECEIVED] IMPROVEMENTS IN CARBURETTERS. In motor car work the call… | ||
| Scan292 | Features and advantages of a specific carburetter design. | ||
| View original record | (2) ORIGINAL. It is also preferable to multiple jets because of the diffi-culty of the imperfect way they come successively into action. Probably the best arrangement of this carburetter is in the… | ||
| Scan293 | Modifications for chromium plating radiators, including material choice and tank design. | ||
| View original record | HS. BY. FROM R. C. to SG. WOR. HY. ORIGINAL R1/M4.12.29. RADIATORS - CHROMIUM PLATING. X4442. We are sending you a design of a method of putting the radiator together after chromium plating. This is… | ||
| Scan294 | The development of a new expanding fixed throat carburetter based on a recent patent. | ||
| View original record | HS. BY. FROM R. C. to SG. WOR. RG. CAR CARBURETTERS. ORIGINAL R2/M4.12.29. 8 7080. x 5080. E. is very busy getting out a first drawing of the carburetter in accordance with our recent patent, namely,… | ||
| Scan295 | On shock damper design, discussing schemes for controllable damping based on stroke length and vehicle speed. | ||
| View original record | HS. BY. FROM R. Copy to SG. Copy to WOR. ORIGINAL SHOCK DAMPERS. R3/M4:12.29. +7520 X5320, Mr. Hardy is working on two or three schemes for giving a short stroke with no damping, having the longer… | ||
| Scan296 | Following up on an arrangement to receive a Powerplus Blower for Mr. Royce's inspection. | ||
| View original record | PY. FROM E. C. to SG. RG. C. to DY. HS. ORIGINAL ORIGINAL E1/M5.12.29. re. POWERPLUS BLOWER. 84433 We should be glad if you would kindly confirm with the Powerplus Co. that in conversation on the… | ||
| Scan297 | Design schemes for the Phantom II and 20HP rear shock dampers. | ||
| View original record | —BY. FROM DA. Copy to SG. Copy to HS. ORIGINAL x7250. x7520. x5520. DA2/M5.12.29. PHANTOM 2. SHOCK DAMPERS. We send herewith N. scheme 2994. shewing the con. rod for the rear shock damper with… | ||
| Scan298 | Application and clearance of the screwed backing nut on the Phantom II hypoid axle. | ||
| View original record | BY. FROM DA. Copy to SG. [Text Struck Through] Copy to HS. PHANTOM 2. HYPOID AXLE. Herewith we send N. sch. 2991. shewing the application of the screwed backing nut to the Phantom 2. hypoid pinion… | ||
| Scan299 | Experimental spring connecting rod for 20HP rear shock dampers, noting a ground clearance issue. | ||
| View original record | BY. FROM DA. ORIGINAL DA3/M7.12.29. Copy to SG. Copy to HS. 20HP. REAR SHOCK DAMPERS. x5520. Herewith we send N. scheme 2995 shewing the application to the 20HP. rear damper of the spring connecting… | ||
| Scan300 | Modifications to the Phantom II rear springs, including shackles, packing plates and clips. | ||
| View original record | ~~R/Y~~ FROM DA. ~~Copy to SG.~~ Copy to HS. PHANTOM 2. REAR SPRINGS ORIGINAL X7410. Herewith we send N. sch. 2998. on which we have shewn the rear spring with a rolled eye at one end, with the object… | ||
| Scan301 | Proposed new features and testing for an experimental Phantom II enclosed limousine. | ||
| View original record | SECRET TO HS. FROM EV. COPY TO SG. ORIGINAL EV1/7.12.29. x180. x7830. RE EXPERIMENTAL ENCLOSED LIMOUSINE. PHANTOM 2. We send herewith N.Sch.2999. shewing a small scale preliminary sketch of the… | ||
| Scan302 | Scheme 2993 for a revised Phantom II subframe, combining straight and dropped types. | ||
| View original record | BY. FROM DA. (BY. is crossed out) Copy to SC. (Crossed out) Copy to HS. PHANTOM 2. SUBFRAME. We send herewith R. scheme 2993. shewing a layout of an enclosed limousine on the revised type of subframe.… | ||
| Scan303 | Investigation into carrying the 20HP battery in a Dagenite moulded case with a transverse cell arrangement. | ||
| View original record | FROM DA. Copy to EFC. ORIGINAL 20HP. BATTERY. DA2/M10.12.29. X4642 With reference to BY/MTN8/N281129.., we are investigating the carrying of the 20HP. battery in a metal box on the lines of P. 2. We… | ||
| Scan304 | Various issues and recommendations concerning Phantom II subframes. | ||
| View original record | BY. FROM DA/EV. C. to HS. EP. C. to CX. JLE. DA/EV3/M10.12.29. ORIGINAL +7380. PHANTOM 2. SUBFRAMES. (1) EP/THN6/H51229. We do not think we should be very nervous over the latest clearances specified… | ||
| Scan305 | Subframe design modifications for coachbuilders, referencing templates and a new universal subframe. | ||
| View original record | (2) ORIGINAL to draw the hole sideways in the main frame. We suggest that the hole in the main frame be a slot instead of a round hole, the width of the slot being the same as the present dia. and the… | ||
| Scan306 | Modifications to rear wheel carriers to accommodate larger 7-inch section tyres and the resulting impact on coachwork. | ||
| View original record | [STAMP] ORIGINAL 7 [Handwritten] x 7830 x 7600 BY. FROM DA/EV. (BY. is struck through) DA/EV4/M10.12.29. C. to -SC- (SC is struck through) HS. P. 2. REAR WHEEL CARRIERS. While we retain the 21" rims… | ||
| Scan307 | Correct brake drum clearance specifications for the Phantom II model. | ||
| View original record | HS. FROM DA/EV. DA/EV1/M13.12.29. Copy to - EP. Copy to - BY. (Crossed out) Copy to - JLE. (Crossed out) ORIGINAL PHANTOM 2. SUBFRAME. BRAKE DRUM CLEARANCE. X7380. With reference to EP/THN2/H101229.,… | ||
| Scan308 | Suggestions and issues related to shock damper design, including valve oscillation and air trapping. | ||
| View original record | BY. FROM DA. Copy to SG Copy to HS. ORIGINAL SHOCK DAMPERS. DA2/M13.12.29. +5520 x7520 Herewith we send N. schs. 2996/7., shewing a suggestion for providing a small degree of free motion in the shock… | ||
| Scan309 | Suggesting an experiment with rubber mountings on a 20HP model. | ||
| View original record | BY. FROM E. C. to SG. C. to HS. the above. ORIGINAL 16 20HP. RUBBER MOUNTING. 8500S- We send you herewith LeC. 2771. shewing R. thinks it would be an informative exper- iment to try this mounting on… | ||
| Scan310 | Rubber engine suspension for the 20HP model and future engine mounting strategies. | ||
| View original record | HS. ) FROM R. BY. ) C. to SG. WOR. ENGINE SUSPENSION. ORIGINAL K5005 * We are sending you a rubber suspension on the lines of P. 2. for the 20HP., and from our present views on the subject this is… | ||
| Scan311 | Challenges of car battery charging, comparing the Lucas system with a vibrator control system used by Fiat. | ||
| View original record | EFC. FROM E. Copy to SG Copy to PN. [Struck through] Copy to HS. ORIGINAL BATTERY CHARGING. Our local experience of car batteries is that during the summer months they are generally "boiled" away, and… | ||
| Scan312 | Design, materials, and silencer for the Phantom II exhaust heated induction pipe. | ||
| View original record | K. FROM E. (K is struck through) Copy to SG. (struck through) Copy to HS. (struck through) Copy to BY. (struck through) PHANTOM 2. EXHAUST HEATED INDUCTION PIPE. ORIGINAL (stamped) X7910 (handwritten)… | ||
| Scan313 | Investigation comparing the noise levels of spur, epicyclic, and internal (spool) gears for a silent 3rd speed gearbox. | ||
| View original record | P.A. FROM DA. Copy to SG. Copy to HS. DA3/M24.12.29. x5310 x7310 y523 ORIGINAL SILENT 3rd. SPEED GEARBOX. Herewith we send N. sch. 3002. - an investigation of the comparative merits of spur,… | ||
| Scan314 | Battery charging issues and proposed modifications to the Lucas dynamo system for winter driving. | ||
| View original record | R. FROM E. C. to SS. WSR. C. to P.N. HS. C. to SY. EFC. ORIGINAL X294 X1589 X8780 BATTERY CHARGING. The troubles of the man who uses his car a lot in the dark are with us every winter, and if he is an… | ||
| Scan315 | Suggestion to use four instead of three conductors from the dynamo to better regulate battery charging. | ||
| View original record | (2) This would mean bringing four instead of three conductors from the dynamo. It is not suggested that such an arrangement would dispose of the question of overcharging of batteries in summer, but… | ||
| Scan316 | Scheme for adapting a standard radiator for chromium plating. | ||
| View original record | BY. FROM E. Copy to SG. Copy to HS. Copy to R. ORIGINAL V4442. RADIATOR FOR CHROMIUM PLATING. We send you herewith a blueprint of LeC. 2774., shewing the original scheme proposed by R. for adapting… | ||
| Scan317 | Examining a Powerplus blower, suggesting design improvements, and showing its performance graph. | ||
| View original record | R. FROM E. [handwritten] C. to SG. RG. [text crossed out] C. to HS. [text crossed out] ORIGINAL. [stamped] E3/M24.12.29. X4433 [handwritten] re. POWERPLUS BLOWER. We have examined the blower which… | ||
| Scan318 | 3-litre compression ignition unit's specifications and suitability for a Phantom engine. | ||
| View original record | (2) ORIGINAL. The compression ignition unit is of 3 litre capacity, and at 2500 RPM. will require about 150 c. ft/min. of air for 50% supercharge, so that this particular blower would have to be… | ||
| Scan319 | Move towards an intermediate output dynamo and the need for a simple, reliable charge indicator. | ||
| View original record | EFC. ) FROM R. PN. ) (At Le Canadel.) C. to SG. WOR. E. C. to DA. BY. MS. ORIGINAL CAR DYNAMOS AND .CHARGE INDICATOR. R2/M28.12.29. X5664 X8665 X1589 X4040 I think that at once we ought to move… | ||
| Scan320 | Arranging a schedule of monthly visits to Derby. | ||
| View original record | SG. FROM DA. Copy to HS. Copy to RY. [Struck through] ORIGINAL. ORIGINAL. VISITS TO DERBY. DA1/M31.12.29. X3993. Replying to SG1/D301229., I note that Works would like me to visit Derby about the… | ||
| Scan321 | Progress on a rear light switch, starting handle positioning, and bumper standardization inquiries. | ||
| View original record | HS/RM. FROM DA. ORIGINAL. DA2/M31.12.29. x 7940 x 270. x 4522. 10,000 MILES TEST. In reply to HS/RM1/MJ231229., we are doing the switch for operating the rear light by the gear lever in reverse. As… | ||