Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Standardisation of the front silencer. | ||
| View original record | RR 782 REVISED (10H) (DE444 6-10-25) BM. X7230. COMPLETED 19.10.26 H4 STANDARDISATION of CHASSIS PARTS. Date 24.9.26 Description of Parts. FRONT SILENCER. Origin. Non-rusting and better lagging.… | ||
| Scan002 | The standardisation of chassis parts. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS EB R ROW RS AO VB ES E FWD BWD CH Handwritten: To BT. for Signature From HS. | ||
| Scan003 | The distortion and damage to the exhaust pipes on a 12-EX car. | ||
| View original record | To EY. from Hs/GWH. c. to Wor. X7230 Hs/GWH2/LGS.11.26. EXHAUST PIPES - 12-EX CAR. X7230 X8230 Owing to the continued distortion of the down take pipes, the pipe leading from the hot spot on… | ||
| Scan004 | Modifications to the exhaust system and its position relative to the frame. | ||
| View original record | TO BY. FROM DA. OM/X7230L DA1/M18.11.26. C. to -BY- HS. EAC.7. EXHAUST SYSTEM. X7230 Replying to BY/CGH9/G51126., we send herewith N. schemes 2303/4., on which we suggest some modifications to the… | ||
| Scan005 | Modifications for fitting a shock damper front axle control to an EAC.7 chassis. | ||
| View original record | To EY. from DA. c. to BJ. Hs. 47230 DA5/M6.1.27. EAC.7. FRONT AXLE CONTROL. X.7420 X.7240 X.7230 We have investigated the question of fitting the shock damper front axle control to EAC.7. and send… | ||
| Scan006 | Modifications to the brackets for a silencer's heat shield to allow for expansion. | ||
| View original record | To BY. from DA. c. to BJ. Hs. Y/7230 DA1/M5.5.27. HEAT SHIELD FOR EAC. 7. X.7230 SILENCER. X.3908 We thank you for your sch.915., and although we agree that it would clear the various obstructions, we… | ||
| Scan007 | On the non-essentiality of the exhaust heat shield for open touring cars and the ongoing testing of a baffle. | ||
| View original record | To Sg. from Hs/Rn. X7230 X8236 Hs/Rn1/LG15.7.27. With reference to Sg11/M13.7.27. We do not consider the exhaust heat shield is essential for open touring cars. It is reasonably easy to add this… | ||
| Scan008 | Proceeding with Scheme 963 for the crankchamber of a Phantom sequence starter. | ||
| View original record | X7230 E.(HW) [strikethrough] c.EFC. [strikethrough] c.HS. [strikethrough] BY/Cgh14/H. 22.9.27. CRANKCHAMBER FOR SEQUENCE STARTER - PHANTOM. With reference to E2/M.17.9.27. we are proceeding with… | ||
| Scan009 | Design of exhaust manifolds and pipes for the Super Sports 20 HP model. | ||
| View original record | E. from R. Hs. BY. c. to BJ. Wor. RG c. to DA. 47230 R3/M21.1.28. SUPER SPORTS 20 HP. EXHAUST MANIFOLDS AND PIPE. X 8230 X 5230 X.7230 It is understood that on the improved 20 HP.(next 10,000 miles)… | ||
| Scan010 | Next 10,000 miles test for the Standard Phantom and design considerations for the sports carburettor. | ||
| View original record | BY E. Hs. from. R. 47230 R1/M6.2.26. c. to BJ. Wor. Da. X. 8840B X. 7080 X. 7230 X. 7070 STANDARD PHANTOM - NEXT 10,000 MILES. This is expected to be ready by ............ Supposing Mr. Elliott can be… | ||
| Scan011 | Design and potential issues of proposed exhaust pipes for the EAC.10 model. | ||
| View original record | X.7230 R. from E. c. to BJ. Hs. BY. E2/M25.2.28. EAC.10 EXHAUST PIPES. We send you herewith a blueprint of LeC.2518 shewing the proposed exhaust pipes for EAC.10. This is not quite like either types 1… | ||
| Scan012 | Drawing Lec.2518 for an exhaust manifold, advising to await feedback before proceeding. | ||
| View original record | BY. from E. c. to BJ. Hs. X.7230 E1/M27.2.28. EAC.10 EXHAUST MANIFOLD. We send you herewith drg. Lec.2518 shewing the above. It may be wise not to push on with this scheme straight away until we hear… | ||
| Scan013 | Design of an 'SS' exhaust pipe, suggesting a more practical and less costly 4-bolt flange. | ||
| View original record | X.7230 E. from R. c. to BJ. Wor. BY. Hs. R2/M28.2.28. EAC.10 'SS': EXHAUST PIPE. Re. LeC.2518, this appears the simplest form that promises to be efficient, and should be made like this drawing until… | ||
| Scan014 | Drawing for an alternative exhaust pipe joint. | ||
| View original record | N. 7230 BY. from E. c. to BJ. Hs. E5/M8.3.28. EAC.10 ALTERNATIVE EXHAUST PIPE JOINT. We send herewith drg. LeC. 2524 shewing the above. E. | ||
| Scan015 | Modification of an 'SS' exhaust pipe main connection to a 4-bolt flange. | ||
| View original record | R. from E. c. to BJ. Hs. BY. X. 7230 E2/M8.3.28. EAC.10 'SS' EXHAUST PIPE. We attach herewith a print of LeC.2524 shewing main connection for the above modified to a 4 bolt flange. In making the… | ||
| Scan016 | Outlining two modification schemes for an exhaust pipe flange to improve alignment tolerance. | ||
| View original record | R. from E. c. to BJ. Hs. BY. X.7230 E1/M20.3.28. EAC.10 EXHAUST PIPE FLANGE. Please find herewith a blueprint of LeC.2532 dealing with the above. We have shewn 2 schemes for modifying this flange to… | ||
| Scan017 | Drawing for an EAC.10 Exhaust Pipe Flange. | ||
| View original record | X. 7230 BY. from E. c. to BJ. Hs. E5/M22.3.28. EAC.10 EXHAUST PIPE FLANGE. Please find attached drg. LeC.2532 dealing with the above. E. | ||
| Scan018 | Technical note discussing the design of a bolted exhaust pipe joint with spherical seats. | ||
| View original record | E. Hs. BY. from R. c. to BJ. Wor. X. 7230 R3/M25.3.28. SS. ENGINE - EXHAUST PIPE JOINT. Lec.2532 - BOLTED JOINT WITH SPHERICAL SEATS. The 2 schemes shewn seem to have very different radius for the… | ||
| Scan019 | Hand-drawn sketch of a front exhaust downtake pipe showing a failed joint and a proposed modification. | ||
| View original record | X0230 47230 pipe straightened out here. welded joint given way. FRONT EXHAUST DOWNTAKE PIPE | ||
| Scan020 | Design sketch featuring a radiator grille and a crankshaft, accompanied by dimensions and handwritten notations. | ||
| View original record | S.T./A11/1.7.32 Han EP MR HCL RG HS Study MK 9 EX HS 9GIII 11GIII 10 EX 480 3.500 2.500 1.25 | ||
| Scan021 | Modifications to a blueprint for an exhaust pipe flange. | ||
| View original record | R. from E. c. to BJ. Hs. BY. X. 7230 E5/M5.4.28. EAC.10 EXHAUST PIPE FLANGE. We send you herewith a blueprint of Lec.2542 shewing the above. In addition to the modifications you mention we have shewn… | ||
| Scan022 | Investigation into the stretching and collapsing of exhaust valves on the Phantom model. | ||
| View original record | To R. from Hs. c. to BJ. Wor. c. to RG. E. c. to DA. BY. X7238 Hs3/LG10.5.28. PHANTOM. EXHAUST VALVES STRETCHING. X8230 We have examined valves out of the engine which had this trouble in France.… | ||
| Scan023 | The difficulty of accessing a bolt on the F.2.B. engine exhaust system, requiring a special tool. | ||
| View original record | To Hs. from Mx. Y7230 Mx2/T20.6.28. F.2.B. SERIES CHASSIS. On the Exhaust system of the F.2.B. Engine, the bolt and nut on the rear exhaust box securing the down pipe is in a very inaccessible… | ||
| Scan024 | Alteration to the F-2-B series chassis, inverting the bolts on the exhaust manifold. | ||
| View original record | X7230 C. Hs. BY/Cgh6/K. 22. 6. 28. F-2-B SERIES CHASSIS. In reply to Mx2/T20.6.28., we have now arranged for the bolts securing the rear down take pipe to the exhaust manifold to be inverted so that… | ||
| Scan025 | Modifications to the 'SS' exhaust cutout and its operating gear. | ||
| View original record | BY. from DA. c. to BJ. Hs. Y7230 DA4/11 12.9.28. 'SS' EXHAUST CUTOUT, & OPERATION. X.7230 X.7490 Herewith we send N.Sch.2699/700 shewing the operating gear for the exhaust cutout. We have only made… | ||
| Scan026 | Alterations to the cylinder head for exhaust heated versus water heated induction pipes. | ||
| View original record | BY. from E. c. to BJ. Hs. X7230 E2/M12.9.28. EAC.1o. INDUCTION PIPES. X.7230 X.7070 X.8050 We send you herewith drgs. LeCs. 2591/2 dealing with the above. The former shews the alterations required to… | ||
| Scan027 | Drawings and design changes for the 'SS' exhaust system. | ||
| View original record | BY. from DA. c. to BJ. Hs. X. 7230 DA1/M14.9.28. 'SS' EXHAUST SYSTEM. Herewith we send the following drgs. dealing with parts of the exhaust system. 1. N.sch.2703 - Front end of exhaust pipe. 2.… | ||
| Scan028 | Sending a drawing for a heat shield over the silencer for an 'SS' exhaust system. | ||
| View original record | BY. from DA. c. to BJ. Hs. X. 7230 DA4/M20.9.28. 'SS' EXHAUST SYSTEM. Herewith we send N.Sch.2715 shewing the heat shield over the silencer. It is on the lines of those previously sent for Phantom and… | ||
| Scan029 | Modifications to the 'SS' Gearbox Undershield and associated components. | ||
| View original record | BY. from DA. c, to BJ. Hs. 47230 DA1/M3.10.28. 'SS' GEARBOX UNDERSHIELD. X. 7310 X. 7290 X. 7230 Herewith we send N.schs. 2728/9/30/31, shewing the gearbox undershield. It will be noticed that we have… | ||
| Scan030 | Power loss and noise issues with the Super Sports exhaust system. | ||
| View original record | To R. from Hs. c. to BJ. Wor. c. to E. DA. c. to BY. x7230 Hsl/LG27.10.28. SUPER SPORTS EXHAUST SYSTEM. x7771 We attach curves which shew the loss due to the exhaust manifold. As this comparison was… | ||
| Scan031 | Graph plotting Brake Horse Power and Percentage Power Loss against RPM for a Super Sports Engine, comparing open exhaust ports with an exhaust manifold. | ||
| View original record | POWER LOSS TO EXHAUST MANIFOLD. SUPER SPORTS ENGINE. ENGINE No SS.3. STD. 'PHANTOM' CARBURETTOR. OPEN EXHAUST PORTS. EXHAUST MANIFOLD TO LEC. 2518. PERCENTAGE LOSS TO MANIFOLD. BRAKE HORSE POWER.… | ||
| Scan032 | Largely blank page with a purple ink reception stamp in the bottom right corner. | ||
| View original record | ROYCE, LIMITED D. ROOM, 27 OCT 1928 DERBY. | ||
| Scan033 | Inquiry regarding the progress of tests for a rustless exhaust snout. | ||
| View original record | S/W. Hs. Copy to:- By. X 7230? CWB12/GM/29.10.28. RUSTLESS EXHAUST SNOUT. I believe that tests are now being carried out on one or two new materials or processes for rendering the exhaust snout… | ||
| Scan034 | Production of a new exhaust cam and its associated valve lift curve. | ||
| View original record | E. c. BJ. c. Hs. X7230 BY/Cgh3/G.1.11.28. EAC.10. NEW EXHAUST CAM. We send you herewith print of Sch. 1089 showing new exhaust valve lift curve produced in accordance with the information given in… | ||
| Scan035 | Investigation into exhaust valve stretching, concluding it is caused by insufficient tappet clearance. | ||
| View original record | X7230 To CWB. from Hs. c. to Mx. c. to EP. Hs2/LGL.11.28. STRETCHING OF EXHAUST VALVES. X7060 With reference to CWB15/GM29.10.28. The stretching of the exhaust valves in France is proved to be due to… | ||
| Scan036 | Booming issue with the 'SS' exhaust silencer and a proposed experimental test. | ||
| View original record | To BY. from Hs. c. to Wor. X7230 Hs2/LG26.11.28. 'SS' EXHAUST SILENCER. The silencer fitted is very bad for booming. We should like to try the scheme suggested by WW. of leaving the inner tube out.… | ||
| Scan037 | The failure of an aluminium exhaust joint washer, recommending replacement with steel. | ||
| View original record | To BY. from Hs. c. to E. c. to Wor. X7230 Hs10/LG6.12.28. 'SS' SPHERICAL WASHER. E.77463. ------------------------------- EXHAUST PIPE. ------------- This joint washer made of aluminium has burnt… | ||
| Scan038 | Instruction to change the material of the spherical washer for the exhaust pipe from aluminium to stainless steel. | ||
| View original record | Hs. C. Wor. C E X7230 BY/Cgh6/G.8.12.28. SS. EXHAUST PIPE. With reference to Hs10/LG.6.12.28. in connection with the spherical washer fitted between the joint of the exhaust downtake from the engine,… | ||
| Scan039 | Responding to reports on a 10,000 miles test, detailing issues with radiator leakage and a silencer. | ||
| View original record | 47230 Hs. from DA. DAL/M27.12.28. 'SS' 10,000 MILES TEST. X.8941 X.7230 X.7250 We thank you for the copies of GWH's reports, which we are carefully watching. With reference to the water leakage from… | ||
| Scan040 | Multiple issues with the 20 HP car and recommending more work before production. | ||
| View original record | TO R. TO Wor. } FROM HS. X7230 hs2/LG2.1.29. 20 HP. CAR. X7770 X7941 X7010 Although we have sent the 20 HP. car to France we are not very pleased with it. We thought however we would attempt to carry… | ||
| Scan041 | Recommendation to continue production of the 20 HP car with modifications while completing the SS model. | ||
| View original record | contd :- -2- that it would be wise to carry on with the present standard 20 HP. for a little longer. The recommendation is that we should carry on with the 150 standard 20 HP. cars for which material… | ||
| Scan042 | Test failures at Chateauroux, including gearbox anchorage, chassis instability, and a burnt-out exhaust manifold. | ||
| View original record | X7230 To DA/EV. from Hs/Rn. c. to E. Hs/Rn5/LG4.1.29. X7005 We give below a copy of a letter we have received from Hs/GWH. at Chateauroux :- We have tried the solid anchorage on the rear of the… | ||
| Scan043 | Performance issues with the 'SS' vacuum pump and recommending modifications. | ||
| View original record | To E. from Hs/Rn. X7230 Hs/Rn6/LG4.1.29. 'SS' VACUUM PUMP. X7510 We have been going over the points which must have attention before the SS. can be considered a saleable proposition. The exhaust… | ||
| Scan044 | Experiments and potential modifications to an 'SS' engine exhaust system. | ||
| View original record | X. 7230 Hs. E. DA. BY. from R. c. to BJ. Wor. SG. c. to PN. CWB. C. 'SS' ENGINE - EXHAUST. HS/Rn. has temporarily made some of the experiments suggested towards more effectively quietening the… | ||
| Scan045 | Telegram message referring to document L E C 2591 concerning an exhaust-heated induction pipe. | ||
| View original record | 63 10/45 CHICHESTER T 15. HIVES ROYCAR DERBY = REFER TO L E C 2591 FOR INDUCTION PIPE EXHAUST HEATED = ELIOTT + | ||
| Scan046 | New three-section exhaust design with an expansion chamber for 'SS' and 20 HP cars. | ||
| View original record | Hs. E DA. BY. from R. c. to BJ. Wor. SG. c. to PN. CWB. X7230 R1/M17.1.29. 'SS' AND 20 HP. CAR EXHAUSTS. X.7230 X.5230 Following up the idea already given, it would seem that for an easily quietened… | ||
| Scan047 | Proposed cast exhaust manifold design with modifications to clear sparking plugs. | ||
| View original record | R. from E. c. to BJ. Hs. BY. X.7230 E2/M19.1.29. SS. EXHAUST PIPE. We send herewith a blueprint of LeC.2638 shewing a proposed cast exhaust manifold. We have endeavoured to make the manifold stiff… | ||
| Scan048 | Progress memo regarding the production of the 'SS' Car, detailing work on engine mounting and exhaust systems. | ||
| View original record | Wor. from E. 47230 E1/M21.1.29. c. to BY. Hs. RE. 'SS' CAR. X.7770 X.7230 Thank you for your memo. of the 19th.inst. It had occurred to me that it was extremely important to get a modified car running… | ||
| Scan049 | Further tests and modifications to the 'SS' car's engine and body mountings to reduce exhaust periods and front end dither. | ||
| View original record | To R. from Hs/Rm. c. to BJ. Sg. c. to WoR. E. c. to DA. BY. +7230 Hs/Rm3/LG21.1.29. +7005 'SS' ENGINE MOUNTING. Further tests have confirmed all our previous results on the SS. car. Though we now have… | ||
| Scan050 | Experiments to prevent body yawing by altering frame rigidity and front mounting. | ||
| View original record | contd :- -2- the car was entirely altered and exactly the same effect produced on the driver as a 30% reduction in the rating of the side steering tube springs. It appears to us that it should be… | ||
| Scan051 | Short memo confirming receipt of all necessary information for the 'SS' Exhaust System. | ||
| View original record | Hs. from DA. X. 7230 DA1/M22.1.29. 'SS' EXHAUST SYSTEM. With reference to our DA2/M19.1.29., we have now got R1/M16.1.29 and R1/M17.1.29 which gives us all the information we are wanting and clears… | ||
| Scan052 | The performance of two exhaust snouts made from Staybrite steel after prolonged use. | ||
| View original record | To R. from Hs/AJL. X7230 Hs/AJL2/LG22.1.29. c. to BJ. SG. c. to Wor. E. c. to DA. BY. Y4111 EXHAUST SNOUTS IN STAYBRITE STEEL. Two samples of the above have been in use for some considerable time,… | ||
| Scan053 | Instructions regarding alternative schematics for the 'SS' exhaust system, specifically for the parallel sliding joint. | ||
| View original record | BY. from DA. c. to BJ. Hs. X. 7230 DA4/M25.1.29. 'SS' EXHAUST SYSTEM. We send herewith N.sch.2807 shewing the plain parallel sliding joint on the front expansion box, and also on the silencer, as an… | ||
| Scan054 | Design and material specifications for an 'SS' exhaust manifold. | ||
| View original record | X.7230 E1/M28.1.29. BY. from E. c. to BJ. Hs. 'SS' EXHAUST MANIFOLD. From R's recent memos, you will see that he does not think cast iron suitable. We believe he means this as applied to the existing… | ||
| Scan055 | Design specifications for a new 2.25 inch 'SS' exhaust manifold, including material suggestions and production considerations. | ||
| View original record | R. from E. c. to BJ. HS. BY. Y7230 E3/M29.1.29. 'SS' EXHAUST MANIFOLD. X.7230 X.7050 Blueprint Lec.2657 attached shews the above made up of 2.25 out. dia. pipe instead of the present 2", and welded to… | ||
| Scan056 | Design and simplification of exhaust pipes, including a copy of a telegram. | ||
| View original record | X.7230 R1/M30.1.29. DA. BY. Hs. from R. c. to Wor. Sg. SS. EXHAUST PIPES. COPY OF TELEGRAM. ROYCE CHICHESTER ANGLETERRE+ DAY EXHAUST PIPES HAVE TOO MANY AWKWARD PIECES TRY WITH ELLIOTT TO FIND SIMPLER… | ||
| Scan057 | Technical memorandum discussing the design of an automotive exhaust system. | ||
| View original record | contd :- -2- This suggests one expansion joint only at the front end of the main silencer, which in my scheme the silencer must be kept to its present length, or shorter. Cannot the front box half the… | ||
| Scan058 | Design of an exhaust system, including materials and construction methods, accompanied by sketches. | ||
| View original record | To DA. from R. E. HS. BY. c. to SG. Wor. X7230 R3/M30.1.29. SS. EXHAUST ETC. X. 7230 X. 7005 In France we are waiting for two things - the above, and the engine mounting - i.e. slightly flexible on… | ||
| Scan059 | Improved design scheme and giving the recipient autonomy over the final decision. | ||
| View original record | contd :- -2- You have shewn me what you would do. I have replied that it is not simple and practical enough. I have sent several suggestions, and am now waiting for your improved scheme, adopting some… | ||
| Scan060 | Abandoning exhaust heating in favour of water heating for the S.S. and G.4. induction system. | ||
| View original record | 47230. Hs. E. BY. FROM R. RS/M1. 2. 29. c. to Sg. Wor. c. to PN. CWB. S.S. AND G.4. X.7070 INDUCTION SYSTEM. X.5070 X.7230 I have read carefully Mr. Lovesey's notes on the heating of the above. I am… | ||
| Scan061 | Agreeing to the standardisation of Staybrite steel for exhaust systems on the S.S. Chassis. | ||
| View original record | E. DA. BY. Hs. from R. X7230 R1/M8.2.29. S.S. CHASSIS. STAYBRITE STEEL IN EXHAUST SYSTEM. X. 7230 X. 4111 Wherever it is desirable and necessary I think we should use staybrite steel. Hs/AJL. says… | ||
| Scan062 | Various designs and experiments for an SS exhaust system. | ||
| View original record | X. 7230 BY. from DA. c. to Sg. Hs. DAL/M9. 2. 29. SS. EXHAUST SYSTEM. Herewith we send N.schs. 2823/4/5, which have been made in accordance with R1/M30.1.29, R3/M30.1.29 and R4/M3.2.29. There are a… | ||
| Scan063 | Specifications for a Staybrite steel fishtail exhaust outlet for SS and 20 HP chassis. | ||
| View original record | E. Dept. c. Hs. X7230 BY7/G.12.2.29. SS. and 20 HP. CHASSIS - FISHTAIL OUTLET AT THE END OF THE EXHAUST. ------------------------------------------ Both these should be made in Staybrite steel in its… | ||
| Scan064 | Mr. Elliott's visit to Le Canadel, a 10,000-mile car test, and finalising engine and exhaust work. | ||
| View original record | E& RG. from R. Hs. [Handwritten:] X7230 R5/M15.2.29. MR. ELLIOTT'S VISIT TO LE CANADEL. X.7770 X.7230 XX̶7̶0̶3̶5̶ X.3994 It was thought good if Mr. Elliott came here for a few days about the middle of… | ||
| Scan065 | Design and construction of experimental exhaust pipes and silencers. | ||
| View original record | DA. E. Hs. BY. from R. c. to Sg. X.7230 R2/M19.2.29. SS. EXHAUST PIPES. N.sch.2824 Two or three silencers should be made up to find the best for silence and simplicity of construction. I think they… | ||
| Scan066 | Carburation, water circulation, and potential engine design improvements. | ||
| View original record | E. from R. HS. BY. 47230 R2/M25. 2. 29. c. to SG. Wor. DA. c. to PN. CWB. OY. SS. CARBURATION. X. 7080 WATER CIRCULATION. X. 7250 X. 7230 shutter control Lec. 2675 received of the valve working with… | ||
| Scan067 | The 'SS' Exhaust System, sending a sketch showing a stop for a sliding joint. | ||
| View original record | X.7230 BY. from DA. c. to SG. Hs. DA2/AM26.2.29. 'SS' EXHAUST SYSTEM. Herewith we send N.sch.2843 shewing the stop to prevent the horizontal pipe coming out of the sliding joint, as suggested in… | ||
| Scan068 | Proposed sling for the SS. Exhaust System's horizontal pipe. | ||
| View original record | X. 7230 BY. from DA. c. to SG. Hs. DAL/M26.2.29. SS. EXHAUST SYSTEM. Herewith we send N.sch.2842 shewing the proposed sling for the centre of the horizontal pipe. It is intended to be capable of being… | ||
| Scan069 | Proposal to change the material of the exhaust snout to Staybright steel to overcome rusting. | ||
| View original record | RR 789 REVISED (10H) (D.C. 777-29-2-28) M.F C.LTD Y7230. COMPLETED 14.3.29 STANDARDISATION of CHASSIS PARTS. Date 12.2.29 Description of Parts. STAYBRIGHT STEEL FOR EXHAUST SNOUT. Origin. To overcome… | ||
| Scan070 | The fitting of a new part to the 40/50 HP and 20 HP chassis models. | ||
| View original record | 40/50 HP. chassis. The number of the chassis on which the new part will be fitted. J.2. series. Date when chassis will be handed to test. 11.6.29 Cost of scrapper material, if any. Nil. Cost of jigs… | ||
| Scan071 | Experiments and recommendations to increase the efficiency of the 'SS' vacuum pump by enlarging pipe diameters. | ||
| View original record | BY. from Hs/ACL. 47230 c. to E. c. to Wor. Hs/ACL1/LG20.3.29. 'SS' VACUUM PUMP. X7510 We find as the result of experiment that the efficiency of the vacuum pump in supplying fuel is increased by… | ||
| Scan072 | Proposal and modification for an SS exhaust cutout control. | ||
| View original record | BY. from DA. c. to SG. Hs. X. 7230 DA9/M22. 3. 29. SS. EXHAUST CUTOUT CONTROL. We have not yet sent you a cutout control for the L.H. SS. and we send herewith N. sch. 2861 shewing a proposal in which… | ||
| Scan073 | Experimental fitting of a Phantom rear silencer to an SS car's exhaust system. | ||
| View original record | BY. HS. from DA. X7230 DA2/M22. 3. 29. SS. EXHAUST SYSTEM. X. 7230 X. 8230 We believe that you would welcome the use of the complete Phantom rear silencer as you have all tools etc. for it. If this is… | ||
| Scan074 | Completion and return of documents for the 'SS' Exhaust System. | ||
| View original record | A. & 7230 BY. from DA. c. to SG. Hs. DA3/M27.3.29. 'SS' EXHAUST SYSTEM. We send herewith N.schs. 2842/3 both of which you have already received in an unfinished state. We have now completed them and… | ||
| Scan075 | Modifications to the 'SS' exhaust system, including the cutout, silencer suspension, and tubular members. | ||
| View original record | BY. from DA. c. to SG. Hs. X7230 dAZ/M28.3.29. 'SS' EXHAUST SYSTEM CUTOUT OPERATION ETC. X.7230 X.7490 Herewith are N.schs. 2666/7, showing the adaptation of the cutout, silencer suspension, heat… | ||
| Scan076 | Design change for the 'SS' exhaust system gusset plate and L.H. controls. | ||
| View original record | BY. from DA. c. to SG. Hs. X7230 DA3/M/13.4.29. 'SS' EXHAUST SYSTEM. X.7230 X.7380 Our enquiry by wire with reference to the gusset plate was because we had seen that it fouled the cross member when… | ||
| Scan077 | Confirming modifications to the 'SS' cutout control, including the silencer position, intermediate lever, and heat shield. | ||
| View original record | X7230 BY. from DA. c. to Hs. DA2/M17. 4. 29. 'SS' CUTOUT CONTROL. X7230 +7490 We have despatched to you N.sch. 2878 shewing the revised cutout control to suit the 3" cross member with straight edns.… | ||
| Scan078 | Instructions from Mr. Royce on an experiment for the 'SS' exhaust silencer, detailing the arrangement of baffles and holes. | ||
| View original record | Hs. from DA. X. 7230 DAL/ML. 5. 29. 'SS' EXHAUST SILENCER. Mr. Royce would like you to experiment with the SS. silencer in the following way : (we have no details of the SS. silencer, and therefore… | ||
| Scan079 | Reverting to a fabric coupling and the exhaust system for 'SS' cars due to faults. | ||
| View original record | X7230 To BY. from Hs. c. to Wor. 'SS' CARS. X7770 X7230 X7305 It is most probable that we shall have to revert to the fabric coupling between the engine and gearbox on these cars. Certain faults have… | ||
| Scan080 | Notice confirming the exhaust system for the J.2 series is satisfactory and will not be changed back to the Phantom system. | ||
| View original record | BY/cs. c.O.C. c.Hs. c.Sft. Y7230 BY12/G.27.5.29. EXHAUST SYSTEM - J.2 SERIES. ---------- Please note that as a result of the recent trials, it is agreed that the exhaust system on order for J.2 series… | ||
| Scan081 | Implementation of thermostatically controlled radiator shutters as an alternative to hand control. | ||
| View original record | X7230 SG. Hs. E. } FROM R. SECRET. R1/M27.5.29. C. to Mr. Fuller, CY. Wor. Ey, O. CX. 'SS' AND 'JAPAN' RADIATOR SHUTTERS. X5230 X7230 X3499. We intend shortly to have these again fitted with… | ||
| Scan082 | Brinell hardness of aluminium bronze bars intended for S.S. exhaust valve seatings. | ||
| View original record | Hs. X7230. BY/Cgh16/G.18.6.29. S.S. EXHAUST VALVE SEATINGS. With reference to Hs3/MJ.17.7.29. we believe that the majority of the aluminium bronze valve seatings used for production have been produced… | ||
| Scan083 | Configuration of two S.S. chassis for testing engine noise and roughness. | ||
| View original record | To Hs/AJL. from Hs/Rm. X7230 Hs/Rm3/LG20.6.29. ENGINE NOISE AND ROUGHNESS. X7770 The position of the three S.S. chassis at present is : 19-EX. A standard S.S. car with the exception that the exhaust… | ||
| Scan084 | Car's exhaust, steering, and a recommendation to keep car 21-EX as a reference standard. | ||
| View original record | contd :- -2- the two branch exhaust box. Should the car shew up well for smoothness and silence under these conditions we shall have to go into the question of making the steering passable. 21-EX.… | ||
| Scan085 | Issues with a red water boiling indicator lamp and silencer popping on the 21-EX car. | ||
| View original record | SG. from Hs. X7230 Hs2/LG21. 6. 29. 21-EX CAR. Y3875 With reference to SG2/W20.6.29. There is a red lamp to indicate that the water is boiling fitted to this car. this fitting is now embodied in the… | ||
| Scan086 | Solutions for S.S. Exhaust noise and cracking issues, suggesting design modifications. | ||
| View original record | HS. FROM R. X7220 SECRET. R4/M1.7.29. X7230. C. to Sg. Wor. By. S.S. EXHAUST. We are very definitely against wrapping the exhaust in asbestos, and sheeting it. If the upper piece (on engine) is silent… | ||
| Scan087 | Recommendation to try water cooling a section of pipe to reduce heat, noise, expansion, and oxidation. | ||
| View original record | -2- contd. It is just worth trying water cooling the first part of the pipe, finding what percentage of radiator it takes extra. It would reduce all the above troubles, (heat, noise, expansion, and… | ||
| Scan088 | The cause of exhaust cracking noise and proposed solutions involving studs, nuts, and the downtake pipe. | ||
| View original record | SECRET. X7220 E2/M2.7.29. Hs. from E. Copy to Sg. Ry. SS. EXHAUST. X7220 It is concluded that the unpleasant cracking noise from the exhaust is caused not by the manifold sliding on its joint faces… | ||
| Scan089 | Issues with the S.S. Exhaust System's Cut Out Valve and a proposed strengthened design. | ||
| View original record | To R. From Hs/AJL. C.C. to SE. WOF. C. to BY. E. C. to BA. Hs. x/y230. Hs/AJL2/MJ.6.7.29 xy/230 xy/490 S.S. EXHAUST SYSTEM Cut Out Valve. Trouble has been continually experienced with the exhaust cut… | ||
| Scan090 | Blueprint diagram for a modified exhaust cut-out, designated S.S. | ||
| View original record | MODIFIED EXHAUST CUT OUT. S.S. SCHEME 1167. | ||
| Scan091 | Telegram proposing modifications to an exhaust system and silencer. | ||
| View original record | HIVES ROYCAR DERBY = REGARDING EXHAUST SYSTEM ABANDON CUTOUT AND LONG TUBES IN REAR SILENCER AND FIT SIX TO EIGHT PERFORATED DIAPHRAGMS STOP SENDING TONIGHT A NOVEL DESIGN FOR THIS SILENCER TRY THIS… | ||
| Scan092 | Request for a complete analysis of a badly pitted S.S. engine exhaust valve to determine its material and the cause of the pitting. | ||
| View original record | To Hl. from Hs/AJL. X7230 Hs/AJL1/MJ.11.7.29. S.S. Engine. Exhaust Valves. We hand you herewith an S.S. exhaust valve which is one of a set taken from an engine after approx: 14,000 miles running. The… | ||
| Scan093 | Exhaust roar issue, proposed solutions, and a decision not to purchase a Bentley car. | ||
| View original record | X7230 SG. FROM R. SECRET. R4/M11.7.29. c. to Hs. Wor. By. SS. EXHAUST. Re SS. I feel certain the roar is due to the unsuitable exhaust system, but varies considerably with different bodies. (In my… | ||
| Scan094 | Query regarding the incorporation of modifications for Fabric Couplings and an S.S. Exhaust System into the first batch of S.S. chassis. | ||
| View original record | S/W. Wor. c. to Hs. X7230 Sg.1/WT15.7.29. X.7305 X.7490 X.7230 With reference to Hs/Rm2/J.4.7.29 Fabric Couplings, and Hs/AJL2/MS.7.29. S.S. Exhaust System, Cut-Out Valve. We feel that both the… | ||
| Scan095 | Laboratory report on pitting issues in S.S. exhaust valves and seatings due to the properties of Aluminium Bronze. | ||
| View original record | HS/AJL. c. to By. X7230 H11/EA16.7.29. Laboratory. X.7230 X.1476 S. S. EXHAUST VALVES AND SEATINGS. There has been trouble just recently due to "picking up" of Aluminium Bronze from the seating, which… | ||
| Scan096 | Test results for the S.S. chassis, focusing on axle performance, steering, and identified noise issues. | ||
| View original record | To Rm. from Hs. C. to G.W.H. X7230 Hs.2/MJ.16.7.29. TESTS ON S.S. CHASSIS. ----------------------- X7771 X7230 We have received your reports of Thursday last and the one of the 13.7.29. I have read… | ||
| Scan097 | Exhaust manifold modifications, exhaust notes, and chassis testing results for various models. | ||
| View original record | -2- Manifold makes no difference to the exhaust note either with the cut-out open or shut. We have welded a partition dividing the top manifold into two portions. This does not alter the exhaust note.… | ||
| Scan098 | Issues with exhaust valve seatings on S.S. cars, suggesting a change in material hardness. | ||
| View original record | SECRET. X/Y230 To Ey. From Hs. C. to HL. Hs3/MJ.17.7.29. X/Y230 S.S. EXHAUST VALVE SEATINGS. -------------------------- We are rather concerned by the condition of the exhaust valve seatings on the… | ||
| Scan099 | Laboratory note discussing variations in the Brinell hardness of S.S. exhaust valve seatings. | ||
| View original record | XY230. H13/EA19.7.29. Laboratory. By c to Hs. S.S. EXHAUST VALVE SEATINGS. The conclusions of our note H11/EA16.7.29. were based on the fact that a sample sent in as typical of the material now in the… | ||
| Scan100 | Modifications to an SS exhaust system, including a new silencer design and reduced pipe diameter. | ||
| View original record | x7230 BY. FROM DA. SECRET. DAL/M26.7.29. c. to Sg. Hs. SS. EXHAUST SYSTEM. Herewith we send N. sch. 2925. shewing the proposed silencer with the cutout valve at the front end of the central pipe… | ||
| Scan101 | Differences for production cars regarding rear spring oiling, servo lining, thermostat, and exhaust fittings. | ||
| View original record | To HY, From MS, C. to OT, C. to EX. X7230 HS.2/AM7.26.7.29. Handwritten notes: X7770 X7410 X7230 X7370 S.E. CMZ. Replying to TAm7/H. 25.7.29. We expect that there will be one or two differences in the… | ||
| Scan102 | List of required modifications for S.S. cars concerning steering and damper components. | ||
| View original record | -2- Further points on the S.S. cars which we re- commend should be dealt with as soon as possible are - alteration to side steering tube ball pads to prevent clicking, modification to the lubrication… | ||
| Scan103 | Mr. Royce's decisions on new materials for exhaust valves and valve guides for all engines. | ||
| View original record | WGR. HS. RE. X7230 BY3/HP.30.7.29. X.4621 X5230 X.4011 X7230 X.4488 X8230 X9230 Exhaust Valves Chassis and Aero Engine. Mr Royce this afternoon on the telephone informed me that he wanted to bring in… | ||
| Scan104 | Issue of spitting in the exhaust on the S.S. chassis. | ||
| View original record | EXTRACT FROM :- x7230. Hs. c. By. Mx5/OG8. 8. 29. RE. S.S. CHASSIS. ----------------- 8. SPITTING IN EXHAUST. This is more marked on the SS. than the Phantom, with the throttle closed. We feel that it… | ||
| Scan105 | Extract discussing a fault with the exhaust joint on an S.S. Chassis. | ||
| View original record | EXTRACT FROM :- X7230. Hs. c. to By. Mx5/OG8. 8. 29. Re. S.S. CHASSIS. 2. EXHAUST JOINT. The sliding joint at the front end of the rear silencer is giving trouble owing to, we think, the external… | ||
| Scan106 | Oil leak issue with the change gear bracket breather hole and suggesting design modifications. | ||
| View original record | X7230 filing To Ey. from Hs/GWH. c.c. to MX. c.c. to Da. Da/GWH.1/MJ.14.8.29. "S.S." CHANGE GEAR BRACKET G.77500 ------------- X7770 X7230 We notice the breather hole has been drilled in the side of… | ||
| Scan107 | Modifications to an SS exhaust system, including a new scheme for a ribbed cast aluminium front expansion box. | ||
| View original record | X7230 By. from Da. SECRET. DA2/M15. 8. 29. Copy to Ss. HS. SS. EXHAUST SYSTEM. X7230 We send herewith N. scheme 2932., shewing a ribbed cast aluminium front expansion box. The pipe diameter has been… | ||
| Scan108 | Improvements to exhaust and inlet valves for all aero and car engines. | ||
| View original record | Rs. E.) FROM R. BY. Hs.) X7230 R2/M19.8.29. Copy to Sg. Wor. F. OY. X7230 X7060 X4488 X4479 EXHAUST AND INLET VALVES ALL AERO AND CAR ENGINES. Our recent experience with R. engines should be taken… | ||
| Scan109 | Modifications to an SS exhaust system box and its spring anchorage. | ||
| View original record | X7230. By. from DA. c. Sg. Hs. Del/M20.9.29. X7230. SS. EXHAUST SYSTEM Replying to By/Cghl6/G13.9.29. we send herewith N. scheme 2947. shewing the modifications we suggest should be made to this box.… | ||
| Scan110 | Various schemes for induction pipe and carburetter heating for the Phantom II model. | ||
| View original record | X7230 Hs. from R. c. Sg. Bv. Cy. R3/M4.10.29. X7910 X7230 PHANTOM II & INDUCTION PIPE HEATING. With reference to the requirement of exhaust heating for the carburetter on Phantom II, the following… | ||
| Scan111 | Programme of S.S. hot spot experiments and modifications for a 20 HP engine. | ||
| View original record | X7230. To CHP. From Hs/ACL. c. LNS. c. GP. Hs/ACL2/AD16.10.29. S. S. HOT SPOT EXPERIMENTS. X.7080 X.7230 X.5080 X.5230 (1) Make up two sets of thermo couples which can be used on car or test bed. (2)… | ||
| Scan112 | List of action items for modifying and testing engine components, including manifolds and compression ratios. | ||
| View original record | -2- (8) Put in hand a larger bore inlet manifold. All up to item (6) can be tested first (open exhaust) (7) & (8) can be tried later. (9) Look into the limits of the demensions on cylinder block, con.… | ||
| Scan113 | Calibration curve graph for an exhaust hot spot thermocouple. | ||
| View original record | +7230. Exhaust Hot Spot Thermo-Couple Calibration Curve GALVANOMETER DIVISIONS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HOT SPOT TEMPERATURE (DEGREES CENTIGRADE) 0 25 50 75 100 125 150 175 200 225 250… | ||
| Scan114 | Experiments with exhaust heating for the Phantom II engine's hot spot. | ||
| View original record | To R. From Hs/ACL. c. Sg. c. Wor. E. c. Ds. BY. X7230. Hs/ACL4/AD23.10.29. X. 7080 X. 7230 For print see orig. PHANTOM 11 EXHAUST HEATED HOT SPOT. We have carried out a number of experiments with… | ||
| Scan115 | Page two of a test report discussing engine temperatures and the design of the exhaust and intake manifold. | ||
| View original record | -2- The temperatures recorded during this test are considerably higher than encountered on a road test, the max. road test temperature being approx. 300°C. The arrangement was slightly different for… | ||
| Scan116 | Road test results of a cast aluminium silencer fitted to test car 20-EX. | ||
| View original record | To R. from Hs/AJL. c. to Sg. c. to WOr. c. to E. c. to Da. c. to BY. X7230 x7230 x442 Hs/AJL1/BE12.11.29. CAST ALUMINIUM SILENCER - 'N' SCH: 2931-35 2947. The exhaust system with a cast aluminium… | ||
| Scan117 | Exhaust system modifications to reduce spitting noises and booming, including a cast aluminium part and a different down pipe. | ||
| View original record | (2) Hs/AJL1/BE12.11.29. Spitting noises are not improved by using this front expansion chamber. To improve it we suggest trying a cast aluminium rear end piece in place of the sheetmetal one… | ||
| Scan118 | Troubleshooting noise issues with the exhaust heated hot spot on the Phantom II. | ||
| View original record | To R. From Hs. c. Sg. c. Wor. E. c. Da. By. X7230. HS2/DA16.11.29. X. 7080 X. 7230 X. 7772 EXHAUST HEATED HOT SPOT - PHANTOM 11. We are in trouble with the scheme because when this is fitted we have… | ||
| Scan119 | Standardisation of chassis parts concerning Firth's Crown steel car engine exhaust valves. | ||
| View original record | RR 753 REVISED (10H) (DF 657 4-1-29) 5M. 2/5943. X1474 . X7230 Completed 21/11.29. STANDARDISATION of CHASSIS PARTS. Date 23.8.29. No. X 4188 X5230 X7230 Description of Parts. Firth's Crown steel Car… | ||
| Scan120 | Design to silence the noise in the Phantom II exhaust heated induction pipe. | ||
| View original record | X7230. By. from E. c. Sg. Hs. E4/M27.11.29. X7910 X7238. PHANTOM II EXHAUST HEATED UPTAKE. We send herewith LeC. 2766, showing the above. The object of the design is to silence the noise in the… | ||
| Scan121 | Modification to the Phantom II exhaust silencer to prevent 'spitting'. | ||
| View original record | X7230. Hs By Mx10/T28.11.29. re Phantom II Exhaust Some time ago you agreed to delete the drain hole in the silencer, as was done on the Trials car 1-WJ, as this was found to decrease the tendency for… | ||
| Scan122 | Design schemes for the Phantom II's exhaust-heated throttle. | ||
| View original record | X7230 Hs. } FROM R. EV. } c. Sg. Wor. RL/M29.11.29. PHANTOM II. EXHAUST HEATED THROTTLE. X7910 X7230 We agree that this should be done universally as soon as possible on all cars. We have sent a… | ||
| Scan123 | Query regarding the supply of exhaust heated throttles for three Phantom II chassis exported to America. | ||
| View original record | S/W Hs: X7230. C2/C5.12.29 Exhaust Heated Throttle ---------- Up to the present we have sent two Phantom II chassis to America, viz. chassis Nos. 11-WJ and 69-WJ; and we have just delivered chassis… | ||
| Scan124 | Recommended exhaust heated throttle scheme for the Phantom II 18-EX car and the plan for its approval. | ||
| View original record | W/S. To C. From Hs. X7230. Hsl/MJ.6.12.29. EXHAUST HEATED THROTTLE. Replying to C2/C5.12.29. We have fitted a scheme which we recommend for use on existing Phantom 11 cars, to 18-EX. car. Before the… | ||
| Scan125 | Brief acknowledgement memo regarding an exhaust heated throttle. | ||
| View original record | S/W +7230. C13/C7.12.29 Exhaust Heated Throttle. Thanks for your Hsl/MJ6.12.29 and I note the position. C. | ||
| Scan126 | Querying the approval for fitting an exhaust-heated carburetter, particularly for cars destined for America. | ||
| View original record | To Hs. From Sg. x7230 Sg21/El6.12.29. re. Exhaust Heating to Carburetter. X.7230 X.7080 I should be glad to know whether R. approved of the exhaust heated carburetter as fitted up on 18-EX, and… | ||
| Scan127 | Standardisation sheet for an exhaust heated bend for the Phantom II model, intended for cars going to the U.S.A. | ||
| View original record | X7230. To Sg. From Hs. c. to Wor. C. c. to By. Hs.1/WJ.16.12.29. X.7772 X.7230 X.7080 EXHAUST HEATED BEND FOR PHANTOM 11. We are issuing a standardisation sheet for exhaust heated bend for Phantom 11… | ||
| Scan128 | Carburetter standardisation, Phantom II frame and carburetter development, and the 20 HP model. | ||
| View original record | X7230. To Sg. From Hs. c. to Mot. Hs.1/WJ.17.12.29. x7770- x7230 x7080 x4674 Replying to Sg21/E16.12.29. We have already sent round a standardisation sheet for a preliminary scheme of exhaust heating… | ||
| Scan129 | Meeting notes on design modifications for the 20 HP and aero engines, including gearing and materials. | ||
| View original record | -2- completed the design for the rubber engine mounting. No decision was come to as regards any further modification to the 20 HP. Whilst discussing the aero engine R, agreed that Rg. should go ahead… | ||
| Scan130 | Proposal to trial hard-drawn brass sheet for Phantom Chassis silencer laggings and clips as a cost-saving measure. | ||
| View original record | Hs C.E. Dept. X7230 BY2/J. 2.1.30. PHANTOM CHASSIS SILENCERS X7230 In view of the excessive cost of Staybrite Steel for the silencer laggings and clips, it would appear desirable to try a set of these… | ||
| Scan131 | Analysis comparing the standard silencer system with a new cast aluminium expansion box system for the Phantom II model. | ||
| View original record | To R. From Hs/ACL. c. to SS. c. to WOF. c. to Da. c. to Ev. X723 Hs/ACL.2/WJ.13.1.30. X7230 X7771 PHANTOM 11 SILENCERS - COMPARISON OF STD. SYSTEM WITH CAST ALUM. EXPN: BOX SYSTEM. We have made an… | ||
| Scan132 | Exhaust system tests, detailing power loss and component melting under test conditions. | ||
| View original record | -2- HS/ACL. 2/24.11.30.Contd. pipe from the manifold to the front expansion box instead of the 3" dia. down pipe. In this case there was a power loss with 'cut out closed' as well as cut-out open. The… | ||
| Scan133 | Graph plotting Brake Horse Power against engine RPM for various exhaust system configurations on an SS-15 engine. | ||
| View original record | POWER LOSS TO EXHAUST SYSTEM (S.S.) EXHAUST SYSTEM TO N.Sch. 2931/2/47, HAVING CAST ALUMINIUM EXPANSION BOX & SILENCER ENDS. ENGINE N°SS-15 (STANDARD) (3.0" MANIFOLD PIPE.) CURVES CORRECTED TO N.T.P.… | ||
| Scan134 | Blank page with a 'Print Room' stamp. | ||
| View original record | ROYCE, LIMITED PRINT ROOM, JAN 13 1930 DERBY. | ||
| Scan135 | Graph showing power loss to a standard exhaust system for engine SS-15 under various configurations. | ||
| View original record | POWER LOSS TO STANDARD EXHAUST SYSTEM (S.S.) ENGINE N° SS-15 (STANDARD). CURVES CORRECTED TO N.T.P. BRAKE HORSE POWER RPM OF ENGINE OPEN EXHAUST SWAN NECK & MAIN SILENCER REMOVED COMPLETE SYSTEM,… | ||
| Scan136 | Blank document page marked with a 'Print Room' reception stamp. | ||
| View original record | R. ROLLS-ROYCE, LIMITED PRINT ROOM, JAN 13 1930 DERBY. | ||
| Scan137 | Graph comparing the power output from an engine with different exhaust manifold pipe systems. | ||
| View original record | COMPARISON OF MANIFOLD PIPES - EXHAUST SYSTEM TO N.SCH. 2931/2/47 (S.S.) THESE CURVES SHEW THE POWER OBTAINED WITH THE ABOVE EXHAUST SYSTEM, WHEN USING (1) A 3.0" MANIFOLD PIPE (REDUCED TO 2.5" AT… | ||
| Scan138 | Page marked with a receiving stamp from the print room. | ||
| View original record | ROLLS-ROYCE, LTD. PRINT ROOM, JAN 13 1930 DERBY. | ||
| Scan139 | Blueprint diagram illustrating the failure of a cut-out ring, showing areas of melting and cracking. | ||
| View original record | CUT-OUT RING FAILURE -(E79544). V 768 MELTED HERE CRACKS & NEARLY MELTED. WRD 11-3-30 | ||
| Scan140 | Stamped document from the Print Room in Derby. | ||
| View original record | ROYCE, LIMITED PRINT ROOM, 14 JAN 1930 DERBY. | ||
| Scan141 | Modification to the Phantom II exhaust system's aluminium silencer to avoid drumming. | ||
| View original record | BY. FROM DA. Copy to SG. Copy to HS. X7230 DA2/M28.1.30. PHANTOM 2. EXHAUST SYSTEM. ALUMINIUM SILENCER. Herewith we send N. scn. 3026. shewing the cutout arranged to avoid aluminium inside the… | ||
| Scan142 | Phantom II exhaust system and a scheme for an aluminium front expansion box. | ||
| View original record | BY. FROM DA. M230 DA2/M28.1.30. Copy to SG. Copy to HS. PHANTOM 2. EXHAUST SYSTEM. We send herewith N. scheme 3025. shewing the aluminium front expansion box adapted to receive a 3" downpipe in… | ||
| Scan143 | Effectiveness of a malleable iron feed pipe and the design of a silencer for a Phantom II induction system. | ||
| View original record | HS. FROM E. X7230 E1/M1.2.30. C. to SG. R. (held up) C. to WOR. BY. DA. X.7230. X.7910. X.7070. PHANTOM 2. EXHAUST HEATED JACKET INDUCTION SYSTEM - HS/AJL1/MJ 30130. We are glad you find our malleable… | ||
| Scan144 | Vibrations and booms on the Phantom II model, caused by a leaking exhaust cutout valve, suggesting improvements. | ||
| View original record | Hs. X7230. EP1/H10.2.30 Phantom II. Exhaust Cutout Better Fitting Valve. In dealing with complete finished cars, one of the worst troubles we have is the vibrations and booms under high engine speed… | ||
| Scan145 | Problems and proposed solutions for exhaust manifolds on various car models. | ||
| View original record | SG. FROM E. X7230. E1/M26.2.31. c16.20 27.20 C. to R. WOR. C. C. to BY. HS. PN. EXHAUST MANIFOLDS. We agree that the question of exhaust manifolds requires serious attention. At the same time it… | ||
| Scan146 | Manifold improvements for the P. 2 model, including material changes and the addition of cooling ribs. | ||
| View original record | (2) As regards P. 2, we were not aware that this was giving trouble but in view of your memo, we are including this in the programme of improvement. The first P. 2s, were fitted with manifolds made of… | ||
| Scan147 | Recommendation to delete drain holes in silencers as they are a source of exhaust noise. | ||
| View original record | To BY. From Hs/Rm. c. to Da. 87230. Hs/Rm.1/MJ.19.3.30. DRAIN HOLES IN SILENCERS. Y7230 x5-30 On a number of occasions recently, exhaust noises on the pick-up have been traced to these drain holes. On… | ||
| Scan148 | Directive to revert to using S.L.V. steel for exhaust valves on 20 HP and 40/50 HP chassis. | ||
| View original record | E. Dept. c. Hs. c. ROY. x)230. BY16/G.4.4.30. x)230 x5230 x4554 20 HP. and 40/50 HP. CHASSIS - EXHAUST VALVES. In view of Mr. Hancock's reports, whilst there is no need to create a panic it is… | ||
| Scan149 | The reversion to S.L.V. Specification No. 238.A for exhaust valves on 20/25 HP and 40/50 HP chassis. | ||
| View original record | E. Dept. Roy. Sft. Hs. Roy/Ms X7230 Y7230 X5230 X4554. BY16/N.7.4.30. Re: Exhaust Valves. It is most important that we should revert to S.L.V. Specification No. 238.A. in place of H.R. Crown for the… | ||
| Scan150 | The switch to S.L.V. steel for exhaust valves and the resulting scrap costs. | ||
| View original record | COPY. Y7230. BY. From Sft. c. Wor. c. Hs. c. ROY. SFT.4/B.8.4.30. X.4429: X.7230: X.5230: EXHAUST VALVES. With reference to memo BY16/N7.4.30. instructing us that we should revert to S.L.V. steel in… | ||
| Scan151 | Investigation report on a seized exhaust cut out and a broken battery box flange on car 23-EX. | ||
| View original record | X7-30 To Da. From Hs/Rn. c. to By. Hs/Rn.6/MJ.24.4.30. X7941. We have today received the following note from G.W.Hancock re. 23-EX car. - "We have held the car up today to investigate the seizure of… | ||
| Scan152 | Issues with body mounting, subframes, and potential improvements. | ||
| View original record | COPY. XJ23 (Rec'd at Works 20.5.30) Da. HS. c. R. (Held up). c. SS. c. WOR. c. D. c. LHS. c. By. c. JLB. EF7/H21.5.30. X.7005. X.5005. C.7530. X.5830. C.7380. X.5380. C.7230. X.5230. re. BODY MOUNTING… | ||
| Scan153 | Investigation into body and chassis noises like booming and rumble, with proposals for testing and modifications. | ||
| View original record | -2- SPT/R21.5.30.Conti. extending the outlet snout. The "dead" fabric type body is dying out in favour of the coachbuilt type. We find the characteristics of the chassis for torque reaction effect and… | ||
| Scan154 | Bending of a triangular flat plate on the Phantom II exhaust system. | ||
| View original record | Hs. from Mx. X7230. Mx12/T28.5.30. PHANTOM II EXHAUST SYSTEM We find that the triangular flat plate attached to the lower half crankcase on Exhaust Downpipe invariably bends during tests. Until quite… | ||
| Scan155 | Slipping nickel silver lagging on the exhaust system of chassis 23-EX. | ||
| View original record | COPY. RHC. c. Hs. c. BY/SS. c. BY/CS. X7230, BY.9/G.2.6.30. X.7230. X.7772. X.7940. L.H. CHASSIS - EXHAUST SYSTEM. MR. Hancock reports that on 23-EX. the nickel silver lagging on the vertical pipe… | ||
| Scan156 | Complaints of damage to spring gaiters from the Phantom II silencer outlet, with a proposed solution and a handwritten update. | ||
| View original record | Hs. e. BY C E X 7230. EP1/H5.6.30. Dict. 4.6.30. re. PHANTOM II. SILENCER OUTLET. We are receiving complaints of damage to the spring gaiters caused by the outlet from the exhaust. We agree that… | ||
| Scan157 | The failure of a triangular stay for the Phantom II front exhaust box and proposed modifications. | ||
| View original record | To BY. From Hs/AJL. c. to MX. c. to Ds. c. to E. Handwritten: X7230 Hs/AJL.2/WJ.11.8.30. PHANTOM II EGHAUST SYSTEM. Failure of triangular stay for front exhaust box, ref: MX.12/T23.5.30. We have… | ||
| Scan158 | With a sketch requesting an experimental, strengthened bracket for the front silencer. | ||
| View original record | -2- of the front silencer. [DIAGRAM LABELS] FRONT SILENCER BRACKET STIFFENED BY BOLTING ON ANGLE IRON HERE ENGINE CRANKCASE Will BY. please draw out and issue experimentally a strengthened bracket on… | ||
| Scan159 | Inquiring if it is in order to bend the Phantom II silencer snout to clear the gaiters. | ||
| View original record | Hs. C. BY. C. E. AJL X7230 EP/Thn19/H16.6.30. re. PHANTOM II. SILENCER SNOUT. With further reference to our memo. EP1/H5.6.30. to which we have not yet had a reply, JLE. now asks whether it will be in… | ||
| Scan160 | Deterioration of ignition wires and the proposal to fit a shield. | ||
| View original record | TO E. From Hs/GWH. 7230 Hs/GWH.1/MJ.17.6.30. X773 X7230. Re. Deterioration of Ignition Wires. We are still in trouble with the ignition wires on the exhaust side becoming burnt with the heat from the… | ||
| Scan161 | Test report on two strengthened anchor plates for Phantom II exhaust fittings. | ||
| View original record | 87230 BY. From Hs/AJL. Hs/AJL.2/MJ.20.6.30. PHANTOM 11 EXHAUST FITTINGS. We have tested the two strengthened anchor plates E.80960 and E.78884. Neither of them shew any distortion after a standard… | ||
| Scan162 | Extract from a report on tests of completed cars, regarding extending an exhaust pipe. | ||
| View original record | EXTRACT FROM :- Y7230 DA/LV1/M26.6.30. REPORT ON TESTS OF COMPLETED CARS! X.7770. X 5770. (5) It is agreed to extend the exhaust pipe of P.2 to the rear cross member. We shall send a scheme. | ||
| Scan163 | Alterations to the Phantom II silencer snout. | ||
| View original record | EP. From Hs/AJL. c. to BY. c. to E. x7230. Hs/AJL.1/W.4.7.30. x7230. PHANTOM 11 SILENCER SNOUT. We see no objection to bending the silencer snout over to clear the spring gaiters provided that the… | ||
| Scan164 | The failure of an aluminium front expansion box on an exhaust system and a request for a steel replacement. | ||
| View original record | To BY. From Hs/Rm. To E. To Da. X7230 Hs/Rm.1/WJ.11.7.30. We have received the following report from G.W.Hancock, dated 8.7.30. :- "We have today sent you the following telegram - FRONT EXPANSION BOX… | ||
| Scan165 | Blueprint diagram illustrating the failure of a front expansion box. | ||
| View original record | FAILURE OF FRONT EXPANSION BOX. 2A Ex. TEST ROOM 11 JUL 1930 DERBY. | ||
| Scan166 | Query regarding a collapsed front expansion chamber on a 24-EX Phantom II during a 10,000-mile test. | ||
| View original record | S/W. COPY. X7230. to Hs. From Sg. c. to Wor. Sg.13/D14.7.30. X.7230. X.7940. X.7772. Re. 24-EX. Phantom ll - 10,000 mile test. I see the report dated the 8th. deals mostly with the collapse of the… | ||
| Scan167 | The failure of a modified aluminium exhaust system on a Phantom II car due to heat. | ||
| View original record | x7-30 To R. From Hs. c. to Sg. Mor. c. to L. Da. c. to Ey. Hs.1/MJ.14.7.30. x7230 x7222 x7740 PHANTOM II MODIFIED EXHAUST SYSTEM. The aluminium parts of the exhaust system on 24-XL. car which is… | ||
| Scan168 | The non-standardisation of the 24-EX exhaust system and the unsuitability of aluminium. | ||
| View original record | SG. From Hs. c. to Wor. X 7230 Hs.5/MJ.15.7.30. x7230 x7940 x7772 24-EX. EXHAUST SYSTEM. Replying to Sg.13/D14.7.30. The exhaust system fitted to 24-EX. has not been standardised. Although it ran the… | ||
| Scan169 | Extract concerning the extension of the P.2. exhaust swan neck in relation to designing a rear apron. | ||
| View original record | X. 7230. EXTRACT FROM : - DA/EV1/M15.7.30. BY HS. c. to C. Wor. c. to EP. JLE. (6) P.2. EXHAUST SWAN NECK. We are dealing with the extention of this in connection with the designing of a rear apron. | ||
| Scan170 | Suggestion to increase the number of bolts on the P.2 exhaust system's front expansion box flange from 4 to 8. | ||
| View original record | X7230. By. from Da, c. Hs. Da/M15.7.30. X7230 P.2. EXHAUST SYSTEM - FRONT EXPANSION BOX. With reference to Hs/Rn1/MJ11.7.30. we suggest that the flange connecting the down pipe with the expansion… | ||
| Scan171 | The preferable steel and shape for exhaust valves in car and aero engines. | ||
| View original record | X7230 Hs. } FROM R. & E. Ev. } C. Sg. Wor. RL/M13.8.30. X.4011 X.4488 X.7230 X.5230 EXHAUST VALVES - CAR & AERO ENGINES. The new Austenitic steel I understand proved to scale (oxidise), whereas… | ||
| Scan172 | Failure of aluminium exhaust boxes and suggesting cast iron and other alloys as alternative materials. | ||
| View original record | Hs.) from R. By ) c. Sg. Wor. Da. X 7220. R3/1420.8.30. P.2. EXHAUST SYSTEM As the aluminium exhaust boxes have failed and yet are of a pattern which is desirable I suggest we try these in cast iron,… | ||
| Scan173 | Decision to manufacture ribbed exhaust boxes in cast iron. | ||
| View original record | RECEIVED AUG 1930 Hs. E. [struck through] D.A. [struck through] X7230 BY9/G/22.8.30. P.11. RE RIBBED EXHAUST BOXES. In view of R3/M20.8.30. we consider that our first attempt should be to produce the… | ||
| Scan174 | From 'Sg.' to 'Hs.' requesting to be kept informed about the results regarding exhaust valves for car and aero engines. | ||
| View original record | COPY. x) 230 To Hs. From Sg. Sg19/E2.9.30. Re. Exhaust Valves - X.4011. Car and Aero Engines. X.4488. X.7230. X.5230. Referring to R1/M13.8.30 I should be glad if you would keep me in touch with… | ||
| Scan175 | Responding to a proposal to alter exhaust valves, citing past negative experiences with Ostenetic Steel. | ||
| View original record | To Sg. From Hs. No.4/MJ.3.9.30. X7230. EXHAUST VALVES. X.4011. X.4488. X.7230. X.5230. Replying to Sg18/E2.9.30. We do not propose to be pushed into any alteration of exhaust valves. R. pressed us to… | ||
| Scan176 | Modification to the design of the Phantom II silencers. | ||
| View original record | AJL BY/CS. c. Hs. c. Mx. K7230. BY4/G.15.10.30. PHANTOM 11 SILENCERS. ------------------- Mx. has suggested that instead of the main tube which passes from end to end of the silencer being a fit in… | ||
| Scan177 | Modifications to the petrol tank, single line gauge fitting, filler, wheel carrier, and exhaust fishtail. | ||
| View original record | BY. FROM DA/EV. C. to SC. HS. X7230 DA/EV1/M17.11.30: X.7460. X.7230. P. 2. PETROL TANK AND EXHAUST FISHTAIL. We send herewith N. schs. 3143/4. shewing the above. SINGLE LINE GAUGE FITTING. This is… | ||
| Scan178 | Investigation into the cause and potential cure for 'spitting in the silencer'. | ||
| View original record | To H. From Hs/AJL. c. to EG. WDR. c. to DE. K. c. to EV. Handwritten: X7230. SPITTING IN THE SILENCER. We are continually working to find the cause and cure for spitting in the silencer. Tests we have… | ||
| Scan179 | The effects of fitting a smaller low-speed choke tube to improve carburation and reduce engine spitting. | ||
| View original record | -2- He/AL.1/AL.20.11.21.Contd. by using a low speed choke tube .100" smaller on all its internal dimensions. This was fitted on a car which was bad for spitting in the silencer even after all the… | ||
| Scan180 | Engine tests performed on car 22-EX to investigate a 'spitting' issue. | ||
| View original record | -3- Hs/AFL.1/BL.20.11.39.Contd. are obtaining some more so that we can get further experience. So far on 22-EX, we can find no disadvantage. Bench tests are being carried out in parallel to confirm… | ||
| Scan181 | The test results of a Phantom II exhaust system with a long sliding joint. | ||
| View original record | By c Rm o Wer o Set from Mx. X7230. Mx3/T1.12.30. PHANTOM II EXHAUST SYSTEM. In accordance with your memo BY8/G10.11.30, we have tried out on test three chassis fitted with the long sliding joint as… | ||
| Scan182 | Revised bracket for the exhaust swanneck pipe and associated testing. | ||
| View original record | XY730 BY. FROM DA. C. to SG. HS. P. 2. - EXHAUST SWANNECK. We sent on Sat. the 29. ult., N. sch. 3174., shewing a revised bracket for the swan neck pipe from the 2nd. crossmember for use in connection… | ||
| Scan183 | Changes and new parts for the Phantom II exhaust fittings. | ||
| View original record | [Handwritten] 17230 [Strikethrough]To RHC[/Strikethrough] BY/CS3/IG.10.12.30. c. Hs/AJL. Re Phantom 11 - Exhaust Fittings - Sec:5230. Please receive herewith blueprints of the following drawings,… | ||
| Scan184 | New drawings and parts for an extended rear exhaust pipe experiment on a 40/50HP chassis. | ||
| View original record | To RMC. c. BY/HTB. c. HS/AJL. X7230. BY/CS1/IG.11.12.30. Re 40/50HP Chassis - Exhaust Fittings - Sec:5230. (Extended Rear Exhaust Pipe) Please receive herewith blueprints of the following new… | ||
| Scan185 | The parts for a heat shield to be fitted to the exhaust manifold on a 40/50HP chassis. | ||
| View original record | To C.S. Registr. Dept. c. Mr. Bowers. c. HS/GWH. N7230 BY/CS2/IG.24.12.30. Re 40/50HP Chassis - Exhaust Fittings - Sec:5230. Heat Shield for fitting to existing Exhaust Manifold-Sch:1383. Please… | ||
| Scan186 | Instruction to modify the exhaust system on all L.H. Phantom II chassis. | ||
| View original record | Sft. c. Mx. c. Hs. c. ROY/Ms. c. BY/CS. X7230. BY/Cgh8/G.7.1.31. RECEIVED JAN 1931 PHANTOM II - EXHAUST SYSTEM. With reference to the instruction which has been issued to the effect that the silencer… | ||
| Scan187 | Standardisation report on altering the Phantom II exhaust system to the 20/25 scheme. | ||
| View original record | RR 788 (10m) (2-7-30) BM. G/2571. COMPLETED 21.1.31. X7230. STANDARDISATION of CHASSIS PARTS. Date 11.12.30 X No. 7230. Description of Parts. (APPD) PHANTOM 11 EXHAUST SYSTEM ALTERED TO 20/25 SCHEME.… | ||
| Scan188 | Implementation and costs associated with a standardized chassis part. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted. When available Date when chassis will be handed to test. ---- Cost of scrapped material, if any.… | ||
| Scan189 | 40/50 silencers, detailing power loss, weight, and silence level. | ||
| View original record | X7230. Rg. from Rm. Hs./Rm3/ME.2.2.31. 40/50 SILENCERS. Herewith curves shewing the power loss in a typical R.R. car exhaust system. The weight of the main expansion chamber and fish tail is 60 lbs… | ||
| Scan190 | Failure of an exhaust pipe due to corrosion and proposing further investigation on Phantom II chassis. | ||
| View original record | HS. X 7230 BY6/G.3.2.31. EXHAUST PIPES. ---------------- [Green circular stamp: RECEIVED with a clock face] I have had an instance on test of an exhaust pipe between the engine and the main silencer,… | ||
| Scan191 | Silencer pipe on a Phantom II failing due to intercrystalline corrosion, with a request to check other cars. | ||
| View original record | X7230. To RHC. From Hs/GWH. Hs/GWH.1/KT. 5. 2. 31. By. has reported that the silencer pipe between the engine and main silencer on Phantom II has fell to pieces immediately it was gripped in a vice… | ||
| Scan192 | Use of cooling ribs on exhaust manifolds for Phantom I and 20/25 models. | ||
| View original record | X7250 To E. from SG. Copy to R. Wor. C. BY. Hs. PN. re Exhaust Manifolds. Sg18/E4.3.31. X.7230. X. 5230. Thanks for E1/M26.2.31. I am glad to see what is being done in regard to exhaust manifolds for… | ||
| Scan193 | Testing of malleable iron exhaust manifolds for a Phantom II to prevent fractures caused by thermal expansion. | ||
| View original record | Mr. Goodall Hs/GWH. 87-230. BY9/G.17.4.31. PHANTOM 11 - EXHAUST MANIFOLDS. Please note that the set of exhaust manifolds made in malleable iron which were stretched to my instructions should be handed… | ||
| Scan194 | Delay of improved exhaust manifolds for P. 1. & G. 1. models due to illness. | ||
| View original record | BY. FROM E. C. to SG. WOR. HS. X7230 E1/M23.4.31. IMPROVED EXHAUST MANIFOLDS FOR P. 1. & G. 1. X. 5230. X. 7230. The above unfortunately have been delayed by the illness of the man engaged on the… | ||
| Scan195 | Comparison of engine capacity, downtake, and swanneck dimensions for the 40/50 and 20/25 models. | ||
| View original record | FOR FILES. n 7230. 6.5.31. X.7230. X.5230: Capacity. Downtake. Swanneck. 40/50. 7668 cc's. 3.0" Dia. 2.0" Dia. 7.06 sq.in. 3.14 sq.in. 20/25. 3670 cc's. 2.0". 1.5" 3.14. 1.76. Ratio .48 .442 .56… | ||
| Scan196 | Standardization of extended exhaust tail pipes for P.2 & 25 HP models. | ||
| View original record | To R. From Hs/OWH. c. to Sg. Wor. c. to E. Da. c. to By. Hs/GWH.1/WJ.2.6.31. X7230. P.2 & 25 HP. EXHAUST TAIL PIPES. X.7230. X.5230. There is a general demand by customers to have the exhaust… | ||
| Scan197 | Increased cost of a hinged support for exhaust tail pipes on Phantom II and 25 HP models. | ||
| View original record | X7230 BY. FROM DA. C. to SG. R. WOR. C. to E. HS/GWH. DAL/M5.6.31. PHANTOM 2. AND 25 HP. EXHAUST TAIL PIPES X.7230 X.5230 With reference to HS/GWH1/MJ2831., we presume the increased cost of the WW.… | ||
| Scan198 | Power loss in the Phantom II exhaust system and the need to reduce back pressure. | ||
| View original record | To R. From Ha/Rn. c. to Ng. Nor. c. to Da. E. c. to Hy. 87230. Ha/Rn. 3/KT. 13. 6. 31. EXHAUST SYSTEM P.II. We find that as we increase the power output on the Phantom engine, our loss in the exhaust… | ||
| Scan199 | Graph of power tests on a PI Unit, comparing performance with an open exhaust against a standard silencer system. | ||
| View original record | POWER TESTS ON PI UNIT. TWIN CARBS RR 1.400 DIA: CHOKES. R. TYPE PHANTOM SHAFT 110° TIMING AS ON 4.G.31. 4:9 COMP: RATIO HEAD WITH DOUBLE VALVE SPRINGS. TAPPETS SET { EXHAUST .008 INLET .006 BAR. 755… | ||
| Scan200 | Page marked with a receiving stamp from the H.T. Room in Derby. | ||
| View original record | LIMITED H.T ROOM, 15 JUN 31 DERBY. | ||
| Scan201 | From Sg. to Hs. regarding Hancock's report on valve clearance issues under hard usage. | ||
| View original record | V 7230. 33/143/31 To Hs. from Sg. re 25-EX. Sg2/E14.7.31 From the reports received within the last day or so, I notice that Hancock reports considerable trouble with valves losing their clearances and… | ||
| Scan202 | Modifications to the P. 2. long duration camshaft to improve engine performance. | ||
| View original record | HS. BY. E. } FROM R. X7230 RL/M21.7.31. C. to SG. WOR. RG. P. 2. LONG DURATION CAMSHAFT X.7090. X.7230. This confirms previous experience that our standard is good for ordinary use, but as it is would… | ||
| Scan203 | Experiments in France to fix exhaust valves losing clearances, suggesting salt-cooled valves from the 'R' engines as a solution. | ||
| View original record | o/7230. To Sg. From Hs/Rm. Hs/Rm.5/MJ.22.7.31. 25-EX. With reference to Sg2/E14.7.31. Further to our conversation on the subject, we are carrying out experiments in France to overcome this trouble of… | ||
| Scan204 | Inquiring about the progress of an investigation into frequent complaints about the short life of exhaust silencers. | ||
| View original record | COPY. 87230. S/W. Wor. c. to By. c. to Hs. ---------- C7/C6.8.31. X.4117. X.7230. X.5230. Re. QUARTERLY COMPLAINTS. ---------------------- In the last return, on the question of the Exhaust System,… | ||
| Scan205 | Design and material of exhaust valves for the P.2 model following a 10,000-mile test. | ||
| View original record | HS. FROM R. X7230 R1/M13.8.31. C. to SG. WOR. BY. P.2. IN FRANCE. 10,000 MILES TEST. EXHAUST VALVES. --- There seems no explanation of why the new exhaust valves were any better than those which lost… | ||
| Scan206 | Suggestion to address power limitation on the Phantom II by trying cooler, possibly salt-cooled, valves. | ||
| View original record | HS. } FROM R. BY. } X/230 C. to SG. WOR+ PHANTOM 2. R2/M17.8.31. Is it not possible that the hot valves are the cause of limiting the power. I suggest we try cooler valves; we may allow higher… | ||
| Scan207 | Improved exhaust and inlet valves and the potential need for a longer duration cam due to their increased weight. | ||
| View original record | BY. FROM E. X7230 E2/M22. 8. 31. C. to SG. WOR. HS. P. 2. - IMPROVED EXHAUST AND INLET VALVES. X.7230. X.7060 We send you herewith LeC. 2935. shewing the above. It is expected that the increased… | ||
| Scan208 | Standardisation of chassis parts, specifically for a lengthened rear exhaust pipe. | ||
| View original record | RR 785 (10H) (8459, 24-10-30) 6/3185. 87230. COMPLETED 8.9.31. STANDARDISATION of CHASSIS PARTS. Date 27.6.31. Description of Parts. LENGTHENED REAR EXHAUST PIPE. Origin: DM/DL To carry exhaust fumes… | ||
| Scan209 | Replacement of Staybrite exhaust downtake pipes with fescolised steel pipes for Phantom II and 20/25 HP chassis. | ||
| View original record | Hs. c. Hy. c. BY/SS. c. BY/CS. c. ROY. X7220. BY.3/G.8.10.31. [STAMP: RECEIVED 8 OCT 1931] [Handwritten: Y7220. X5220.] RE PROTECTION OF EXHAUST DOWNTAKE PIPES FOR PHANTOM II AND 20/25 HP. CHASSIS.… | ||
| Scan210 | The failure of experimental 'fescalised' mild steel exhaust pipes during testing. | ||
| View original record | HS Re Exhaust Pipes We have been experimenting with Exhaust Pipes and front expansion chambers made in mild steel and fescalised to prevent scaling. To lessen the cost of production the tests up to… | ||
| Scan211 | The failure of a mild steel exhaust chamber and the need for further experimental work. | ||
| View original record | the cause as after the failure we had another chamber made of mild steel but not fuscolised this lasted some 8000 miles before showing signs of failure the position therefore remains that more… | ||
| Scan212 | Note about testing a new mild steel front suspension member and pipe for a 15,000-mile run. | ||
| View original record | Trying out another mild steel front suspension member and pipe made in a thicker gauge on 13 GIV without any treatment. This is to run 15000 miles in France. AH Hancock | ||
| Scan213 | Power loss in the P.2 exhaust system and the effect on continental type cars with existing silencers. | ||
| View original record | COPY. X 7230 To Da. From Hs/Rm. Hs/Rm.1/AD9.10.31. X.7230. We are not sure whether Ev. had a copy of the curve showing the loss in the P.2 exhaust system when we increased the power. We therefore send… | ||
| Scan214 | Graph showing the results of power tests on a PII unit, comparing performance with an open exhaust versus a standard silencer. | ||
| View original record | POWER TESTS ON PII UNIT. TWIN CARBS RR 1.400 DIA: CHOKES R TYPE PHANTOM SHAFT 110° TIMING AS ON 4 G.31 4.9 COMP: RATIO HEAD WITH DOUBLE VALVE SPRINGS TAPPETS SET { EXHAUST .008, INLET .006 BAR. 758… | ||
| Scan215 | Blank document page with a purple date stamp from Derby. | ||
| View original record | 9 OCT 31 DERBY. | ||
| Scan216 | Request to issue marked up prints for testing Phantom II exhaust system fittings without lagging. | ||
| View original record | BY/OS c. RHC c. Hs/RM. x7230. BY/SS3/J.12.10.31. P.II Exhaust Fittings. -------------------- In order to test out as quickly as possible the front portion of the P.II exhaust system without lagging.… | ||
| Scan217 | Providing marked-up blueprints for Phantom II exhaust fittings and experiment instructions. | ||
| View original record | x7230 To RHC. c. HS/Rm. BY/CS2/EH.13.10.31. Re Phantom II - Exhaust Fittings - Section 5230. Please receive herewith marked-up blueprints of the following:- E.82548 Exhaust Pipe(Intermediate).080… | ||
| Scan218 | Suggesting a testing method for the P.2 exhaust system to identify the source of significant horsepower loss. | ||
| View original record | COPY. X7230. HS/RM. FROM DA/EV. DA/EV4/M14. 10. 31. X7230. P. 2. EXHAUST SYSTEM. We thank you for HS/RM/AD91031., and note that at 3000 RPM. approximately 45HP. is lost in the standard silencer… | ||
| Scan219 | Requirement for larger exhaust silencers on the P. 2 and 25HP cars. | ||
| View original record | COPY. X7230. SG. FROM R. C. to WOR. HS. C. to BY. E. DA. R2/M20.10.31. X7230 X5230 P. 2. & 25HP. EXHAUST SYSTEMS. Experience at Derby is shewing that we require bigger silencers on both our cars, as… | ||
| Scan220 | Distortion issues and the need for stiffening the Phantom II exhaust system flange. | ||
| View original record | 87230. To By. from Hs/Lid. Hs/Lid.2/KT.22.10.31. P.II EXHAUST SYSTEM. We are having trouble with the four bolt flange on the P.II exhaust downtake pipe. Distortion takes place so consistently that it… | ||
| Scan221 | Request to manufacture a modified exhaust fish-tail with a 50% larger outlet area for testing on a Continental P.II. | ||
| View original record | 87230. To RHC/HPS. from Hs/Lid. Hs/Lid.7/KT.2.11.31. EXHAUST TESTS - CONTINENTAL P.II. Will you please make up for 27-EX a swan-neck and fish-tail; the swan-neck pipe as standard but the fish-tail… | ||
| Scan222 | Tests on the Phantom II exhaust system to investigate power losses and potential improvements. | ||
| View original record | To R. from Hs/Rn. c. to Sg. Wor. c. to E. Da. c. to By. X7230 Hs/Rn.1/KT.2.11.31. X5230 LOSSES IN P.II. EXHAUST SYSTEM. With a view to getting some information with the minimum of delay as to the… | ||
| Scan223 | Graph plotting Brake Horse Power and Brake Mean Effective Pressure against RPM to show power losses from different exhaust system configurations. | ||
| View original record | RM. P 33 LOSSES TO EXHAUST SYSTEM. PH. II SHORT TYPE. C.O OPEN AND CLOSED 4.G.C/R 108° MASKED VALVE CAMSHAFT TWIN CARBS. 1.4 CHOKES OPEN EXHAUST ① COMPLETE PH SHORT TYPE EXHAUST SYSTEM C.O. OPEN ②… | ||
| Scan224 | Blank document page with a purple ink stamp from the Print Room in Derby. | ||
| View original record | ROLLS-ROYCE LIMITED PRINT ROOM. 2 NOV 31 DERBY. | ||
| Scan225 | Performance graph analyzing losses in a Phantom II short type silencer exhaust system. | ||
| View original record | LOSSES TO EXHAUST SYSTEM PII. ANALYSIS OF COMPLETE PH. II SHORT TYPE SILENCER 4.6 C/R. 108° MASKED VALVE CAMSHAFT TWIN CARBS. 1.4 THROATS B.H.P. B.M.E.P. R.P.M. ① OPEN EXHAUST ② MAIN EXPANSION BOX… | ||
| Scan226 | Performance graph analysing power losses in a Phantom II short type silencer exhaust system. | ||
| View original record | LOSSES TO EXHAUST SYSTEM P.II. ANALYSIS OF COMPLETE P.II. SHORT TYPE SILENCER 4.6 C/R 108° MASKED VALVE CAMSHAFT TWIN CARBS 1 1/4 DIA THROAT B.H.P. R.P.M. B.M.E.P. ① OPEN EXHAUST ② MANIFOLD AND… | ||
| Scan227 | Cover sheet with a 'Print Room' stamp. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM, 2 NOV 31 | ||
| Scan228 | Exhaust silencers for P. 2. & 'U' Series 25HP, suggesting spot welding instead of riveting. | ||
| View original record | COPY. X7230 HS. } FROM R. BY. } C. to SG. WOR. DA R5/M20.11.31. X7230 X5230 EXHAUST SILENCERS- P. 2. & 'U' SERIES 25HP. We agree that P. 2. short silencer should be used, but we think this can be made… | ||
| Scan229 | Request to make an experimental silencer for a Phantom II car with a 2.50' downtake pipe. | ||
| View original record | To RHC. From Hs/Lid. X7230. Hs/Lid.3/MJ.27.11.31. Will you please make up an experimental silencer to Hs.476 (attached); this is for use on one of our P.11 cars in conjunction with a 2.50" outside… | ||
| Scan230 | Blueprint for an experimental silencer designed to suit a 2.50 inch diameter intermediate pipe. | ||
| View original record | H.S. 476, EXPERIMENTAL II SILENCER TO SUIT 2.50" DIAM. INTERMEDIATE PIPE., SHEATH DRILLED LIBERALLY WITH .250 DIAM HOLES, SPOT WELD, SLIDING FIT, WELD, MODIFIED TO SUIT 2.5" DIAM INTERMEDIATE PIPE AND… | ||
| Scan231 | Proposed modification to the Phantom II exhaust system to reduce noise. | ||
| View original record | 87230. To RHC. From Hs/Rm. c. to Lid. PHANTOM II EXHAUST SYSTEM. We have recently found that we do not lose any power on the 25 HP. car with the small manifold and downtake (1.600 inside dia.) and at… | ||
| Scan232 | Blueprint of a PTT exhaust system with small diameter pipes. | ||
| View original record | Hs/Rm/27/11/31, SPECIAL MANIFOLD TO SUIT 2" DOWNTAKE, ALL PIPES 2 1/4" INSIDE DIA, .125 THICK., SILENCER TO Hs 476, EXISTING FRONT EXPANSION BOX WITH DOWN PIPE LEAD IN AT THE END., PTT EXHAUST SYSTEM… | ||
| Scan233 | The results of tests on exhaust system losses using a 114° camshaft. | ||
| View original record | Y7230. To R. FROM Hs/sn. c. to Sg. Mf. c. to E. Da. c. to Ey. Hs/Bn.4/MA.2.12.31. EXHAUST LOSSES 114° CAMSHAFT. X7230. X7090. We have now repeated the tests of the exhaust system losses using the 114°… | ||
| Scan234 | Performance graph comparing a full exhaust system against a manifold-only system with the cut-out open. | ||
| View original record | COMPARISON OF MANIFOLD ONLY C.O OPEN & FULL EXHAUST SYSTEM P.II COMPLETE SHORT TYPE EXHAUST SYSTEM 114° CAMSHAFT TO EB24448 4.65 C/R STD. CYL HEAD 1.9" VALVE THROAT MANIFOLD ONLY R.R TWIN CARBS 1.4… | ||
| Scan235 | Stamped by the print room. | ||
| View original record | ROLLS-ROYCE, LIMITED PRINT ROOM. 1 DEC 31 | ||
| Scan236 | Performance graph analyzing a short type exhaust system under various configurations. | ||
| View original record | RM. P.42 ANALYSIS OF EXHAUST SYSTEM SHORT TYPE P. II 4.78 114° CAMSHAFT TO E.82°/4.65 C/R. STD. CYL. HEAD 1.9 VALVE THROAT R.R. TWIN CARBS. 1.4" DIA. CHOKES ① MANIFOLD ONLY ② " + FRONT EXP. BOX &… | ||
| Scan237 | Almost entirely faded document with a 'Print Room' stamp in the bottom right corner. | ||
| View original record | [Main body text is illegible] [Stamp in bottom right corner]: ROLLS-ROYCE, LIMITED PRINT ROOM 1 DEC 31 | ||
| Scan238 | Quarterly complaints report regarding noise issues with the Phantom II exhaust cut-out system. | ||
| View original record | To Sg. From Hs. c. to Wor. R. c. to Da. By. X7230. Hs.3/MJ.1.2.32. X4117. PHANTOM II EXHAUST - QUARTERLY COMPLAINTS. On the Phantom II exhaust system the most serious complaint we have is the noise… | ||
| Scan239 | The discontinuation of exhaust cutouts on 40/50's (Phantom II) from the N.2 series onwards. | ||
| View original record | Hs x7230. x7230. x4117 S/W To Hs.from Sg. Copy to Wor. E. DA. BY. Phantom II. Exhaust - Quarterly Complaints. Sg13/E2.2.32 Thanks for Hs.3/MJ.1.2.32, but in writing this you evidently were not aware,… | ||
| Scan240 | Customer complaints about the Phantom II exhaust cut-out and proposing a modification. | ||
| View original record | X7-30. Hs.4/MJ.2.2.32. X4117 To Sg. From Hs. c. to Wor. E. c. to Da. By. PHANTOM II EXHAUST - QUARTERLY COMPLAINTS. Further to Hs.3/MJ.1.2.32. We find that on the present cars it has been arranged… | ||
| Scan241 | Work on intake & exhaust silencers and steering systems for cars. | ||
| View original record | X7230 HS/RM. FROM R. E. DA. (AT Le Canadel.) R4/M12.4.32. Sent from WW. 14.4.32. C. to SG. WOR. BY. PN. X7230 X5230 X7430 X5430 X433. CAR WORK. INTAKE & EXHAUST SILENCERS. Now that HS/RM. has returned… | ||
| Scan242 | Work and modifications for a P.2 resonance-type exhaust silencer. | ||
| View original record | X7230. To RHC. From Hs/Rm. Ha/Rm.20MJ.20.4.32. P.2 RESONANCE TYPE EXHAUST SILENCERS. We have now done sufficient work on the resonance type silencer you made us, to believe that we shall be able to… | ||
| Scan243 | Blueprint for a fishtail exhaust adaptor for 40/50 or 25 HP models. | ||
| View original record | HS 587 ADAPTOR SO THAT EITHER THE 40/50 OR 25 H.P. FISHTAIL CAN BE FITTED FISH TAIL POSITION AS ON E S7556 DRILL AS EXISTING EXP. BAFFLES .750 + .050 6 ROWS AT 60° .212 DIA 1.125 ASBESTOS BETWEEN… | ||
| Scan244 | Largely blank or faded document with a date stamp from the Print Room. | ||
| View original record | ROLLS-ROYCE, LTD., PRINT ROOM APR 22 1932 DERBY. | ||
| Scan245 | Blueprint of a double resonance unit designed to be fitted onto a pipe. | ||
| View original record | HS 558 2 CLIP INSIDE LENGTH 10.00 INSIDE LENGTH 4.25 1.5 DIA 3.42" EXISTING E.79332 EXISTING E.79333 EXISTING 3.000 A 4.00" 4.7" 7/8 DIA INSIDE CLIP ALL FLANGES DRILLED AS ON PREVIOUS SILENCER DOUBLE… | ||
| Scan246 | Blueprint showing two pipe assemblies, one standard and one for a 25 HP application with a fishtail exhaust. | ||
| View original record | 3 40/50 HS 589 STRAIGHT THROUGH PIPE E 80256 DIA SLIDING JOINT AND PIPE AS STANDARD E 82573 FLANGE TO SUIT E 79333 BELOW 25 HP AT B & C DRILL TWO ROWS OF .5" DIA HOLES, ONE ROW 1.00" EACH SIDE OF… | ||
| Scan247 | Largely illegible or blank document with a 'Print Room' date stamp. | ||
| View original record | ROLLS-ROYCE, LTD. PRINT ROOM APR 22 1932 DERBY. | ||
| Scan248 | Modifications to resonance type exhaust silencers for long and short Phantom II chassis. | ||
| View original record | x7230 RHC. From Hs/Rm. Hs/Rm.15/MA.25.4.32. P. 2. RESONANCE TYPE EXHAUST SILENCERS. Further to Hs/Rm.20/MJ.20.4.32. Will you please have a central tube undrilled to E.78956 fitted with a flanged end… | ||
| Scan249 | Request to modify exhaust pieces for the Phantom II Resonance Exhaust System according to specific sketches. | ||
| View original record | X7230. RHC. From Hs/Rm. Hs/Rm. 8/MA.1.6.32. P.II RESONANCE EXHAUST SYSTEM. Will you please modify the exhaust pieces we hand you herewith to sketches Hs.638, Hs.639, Hs.637, and Hs.636. Hs/Rm. | ||
| Scan250 | Duplicate report detailing a series of comparative tests on exhaust systems for two experimental car models. | ||
| View original record | Hs/Rm. FILE 87230. 8.6.32. TESTS ON EXHAUST SYSTEMS. (Duplicate Report). Our first tests were carried out with 20-EX and 22-EX cars on 14.10.31, the exhaust system on 20-EX being much noisier than the… | ||
| Scan251 | Log of daily tests conducted on an exhaust system, modifying components and measuring performance improvements. | ||
| View original record | -2- 17.10.31. Cylinder heads and exhaust systems changed back to their respective cars. 18.10.31. Next tests were on 22-EX with Intermediate pipe lagged, Downtake pipe unlagged, and front expansion… | ||
| Scan252 | Series of tests on exhaust system configurations, materials, and their performance. | ||
| View original record | -3- as follows - Suggested ORIGINAL E80256 Downtake pipe thickness .184" ) /160 .104 E82574 Intermediate pipe " .104" ) Weight .064 Cast Iron expansion box ) 41 lbs 12 ozs. thickness .250 ) /160 .080… | ||
| Scan253 | Test results for different straight-through exhaust pipe configurations and a cast iron expansion box. | ||
| View original record | -4- Straight through pipe reinforced with .040" thickness of metal, making total thickness .104" Result - Only 50% as good as standard system for quietness, and exhaust booms more pronounced. 30 - 33… | ||
| Scan254 | Proposed changes to the 40/50 exhaust system, from Staybright to Mild Steel, to eliminate noise. | ||
| View original record | X7230. To RHC. from Hs/Rm. c.c. to E. Hs/Rm.3/KT.9.6.32. 19-EX. EXHAUST SYSTEM 10,000 MILES. We have decided to do away with the lagging on the 40/50 exhaust system and hence the expensive staybright… | ||
| Scan255 | Phantom II exhaust system and silencer design for the 20/25 and 40/50 models. | ||
| View original record | To E. From Hs/Rm. J7230. Hs/Rm.7/MJ.29.7.32. XS530 P.11 EXHAUST SYSTEM. You will have seen from the Brooklands tests that the Phantom wants a better silencer immediately. The silencer that we are… | ||
| Scan256 | Continued note on testing a Silver Ghost, detailing a 7 BHP performance increase by modifying a pipe. | ||
| View original record | -2- Hs/Rm.7/MJ.29.7.32.Cont'd. know the position and we will try out a Silver Ghost one in a similar place. Actually we pick up 7 BHP. deleting the pipe from the sliding joint aft. as we shewed you on… | ||
| Scan257 | Graph of resonance silencer exhaust tests comparing BHP and back pressure against RPM. | ||
| View original record | P.I. 25 UNIT PHANTOM II COMP. RATIO 5.25:1 N.W. (U.S.) CAMSHAFT SEMI-EXPANDING CARBS RESONANCE SILENCER EXHAUST TESTS RM P 59 P.F. EXH. BACK PRESS. "Hg" B.H.P B.M.E.P. R.P.M. KEY: 1) OPEN EXHAUST 2)… | ||
| Scan258 | Stamped document from the print room in Derby. | ||
| View original record | ROLLS-ROYCE, LTD. PRINT ROOM AUG 8 1932 DERBY. | ||
| Scan259 | Exhaust valve failure on a Phantom II during an endurance run. | ||
| View original record | To E. from Hs/Rm. 87230 Hs/Rm.9/ATL.2.8.32. FAILURE OF EXHAUST VALVE - PHANTOM II We have recently had an exhaust valve failure on the Phantom II. The exhaust valves had done a considerable amount of… | ||
| Scan260 | Chrome iron exhaust manifold that failed during testing due to contraction and shrinkage. | ||
| View original record | X7230, To Ey. from Hs/GWH. c. Wor. E. Hs/GWH.2/KT.6.9.32. CHROME IRON EXHAUST MANIFOLD. The chrome exhaust manifold fitted to 19-EX and run 15,000 miles, broke a lug off during the latter part of the… | ||
| Scan261 | Instructions for five new features to be incorporated into the Continental type Phantom II chassis, including the exhaust system. | ||
| View original record | Hs. c. Wor. X 7230. BY/Cgh.12/G.20.9.32. PHANTOM 11 - EXHAUST SYSTEM. ------------------------- With reference to Sg.18/E.14.9.32. we are issuing instructions for the following five features to be… | ||
| Scan262 | Standardisation sheet for a non-resonant type of silencer to be fitted on all continental cars. | ||
| View original record | X7230. BY/Cgh. from Hs/GWH. Hs/GWH.8/KT.22.9.32. With reference to your memo. BY/Cgh.12/G20.9.32, re. non-resonant type of silencer. We are issueing a standardisation sheet for the following… | ||
| Scan263 | Standardisation and testing of the Phantom II resonance type silencer for Continental cars. | ||
| View original record | ✓ 7230. x7120. To Sg. From Hs. c. to WGr. c. to Ey. c. to L. c. to Da. Hs. 2/MJ.23.9.32. P.2 RESONANCE TYPE SILENCER. It has been agreed that the P.II resonance type silencer shall only be… | ||
| Scan264 | Fix for stretching exhaust valves on customer cars by fitting new heavy-type valves and stronger tappet springs. | ||
| View original record | X7230. To E. from Hs/GWH. c. Hy. Wor. c. EP. Mx. c. Hd. Hs/GWH.5/KT. 23.9.32. x 4117. x 7060, Re. Stretching of Exhaust Valves on Customer's Cars. We are having complaints from customers of the… | ||
| Scan265 | Agreeing to standardise the P.II. resonance type silencer for the Continental model. | ||
| View original record | X7230. To Hs. from Sg. Copy to Wor. EY. E. DA. re P.II. Resonance Type Silencer. Sg4/E27.9.32 X7120. X7230 I am in receipt of Hs.2/MJ.23.9.32. I note your remarks and agree that for the Continental… | ||
| Scan266 | Proposal to modify exhaust valve guides and cylinder bosses for the Phantom model following a test failure. | ||
| View original record | DY. c. Hs. 87230. E/JNR.2/HP.1.10.32. re Phantom. Please receive LeC.3200 Cylinder Head and Exhaust Valve Guides. The drawing shows the modified exhaust valve guide and cylinder bosses. This is our… | ||
| Scan267 | P.2 exhaust valve guides overheating and the potential benefits of trying salt cooling. | ||
| View original record | E. } FROM R. HS. } x7230. R4/14.10.32. C. to SG. WDR. BY. P.2 EXHAUST VALVES. On looking at the drawing of the arrangement we have tested, with a fresh eye, one feels as though we ought not to be… | ||
| Scan268 | Experimental work carried out on Phantom model valves and guides to resolve rattling and seizure issues. | ||
| View original record | X7230 E. from Hs/GWH. c. By. c. Hs/Ra. Hs/GWH.1/KT.14.10.32. X7060 EXPL. WORK CARRIED OUT ON VALVES ETC. PHANTOM. (1) The exhaust guides first fitted for the new type Exhaust Valves failed because the… | ||
| Scan269 | Fitting of new exhaust valves and a modification to the valve guides to prevent rattling. | ||
| View original record | X7230 E. From Hs/GWH. c. BY. Hd. Hs/GWH.5/KT.14.10.32. Re. Fitting of New Exhaust Valve to Customers Cars, 5 to 1 Comp. Ratio. (Depot Sheet issued re. complaint of Valves Stretching.) X7060 We asked… | ||
| Scan270 | Accompanying two unnumbered blueprints for a P.2. resonance type silencer and swan neck. | ||
| View original record | X 7230. To Hs. E/JNR.1/HP.20.10.32. P.2. Silencer. We send you herewith two unnumbered blueprints showing a large diameter resonance type silencer, and swan neck. The silencer and fish tail is… | ||
| Scan271 | Standardisation of a new type exhaust valve and stronger tappet springs for standard cars. | ||
| View original record | RR 782 (10M) (80408. 21-4-32) BM. 3/6382/4. X7230. COMPLETED 15.11.32. STANDARDISATION of CHASSIS PARTS. Date 22.9.32. Description of Parts. NEW TYPE EXHAUST VALVE AND STRONGER TAPPET SPRINGS FOR… | ||
| Scan272 | Standardisation of chassis parts form detailing costs and fitting dates for new parts on an O.2. Series chassis. | ||
| View original record | Header (mirrored text): .ӘTAᗡ .SТЯAԳ SІSSAHƆ ʇO ИOІТAƧIᗡЯAᗡИATS Main body: The number of the first chassis on which the new parts will be fitted........ O.2. Series. Date when chassis will be handed… | ||
| Scan273 | Standardisation of chassis parts, specifically improved exhaust valves made in S/SLV. | ||
| View original record | RR 788 (10M) (30405. 21-4-32) BM. 3/6382/4. COMPLETED 26.11.32. X 7230. STANDARDISATION of CHASSIS PARTS. Description of Parts. IMPROVED EXHAUST VALVES MADE IN S/SLV. Origin. To overcome customers… | ||
| Scan274 | Report form concerning the standardization of chassis parts. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS The number of the first chassis on which the new part will be fitted......... 'G' Series. Date when chassis will be handed to test. 26th. Nov. Cost of scrapped… | ||
| Scan275 | Requirement for elongated silencers due to body designs with luggage lockers and potential exhaust issues. | ||
| View original record | Hs/Rm at W. X7230. Hn1/I/25-1-33. In 'Hs/Rm2/KT19-1-33 you mention that in your investigations into the criticisms of the London Trials car 48-MB you removed the elongated silencer and fitted a… | ||
| Scan276 | Exhaust system fumes and booms on Phantom models with overhanging backs. | ||
| View original record | X7230 W/S. To Hn. from Hs/Rn. Hs/Rn.5/KT.30.1.33. PHANTOM EXHAUST SYSTEMS. With reference to Hn1/I/25.1.33. I am afraid we have had no experience whatever with regard to fumes in the body of cars with… | ||
| Scan277 | Testing of extended exhaust pipes on Phantom models to address exhaust booming. | ||
| View original record | LID X 7230 Hs/Rm. Copy to JLE. Hn9/EE.6.2.33. PHANTOM EXHAUST SYSTEMS. Hs/Rm.5/KT.30.1.33. 1. JLE. tells us that final tests on cars with bodies having overhanging backs have demonstrated the need for… | ||
| Scan278 | Experiments on the Phantom exhaust system for chassis 104-MY. | ||
| View original record | - x7.230 LID Rm. at W. C/- to J.E. Hm14/I/22-2-33. PHANTOM EXHAUST SYSTEMS. In Hs/Rm5/KT30-1-33 you mention your intention to experiment with the exhaust system of Sg's new chassis (104-MY) before it… | ||
| Scan279 | Vibration boom period issue with Phantom II chassis 12-MY. | ||
| View original record | Hs. E. BY. Wor. Mx. JLE. Lillie Hall. x7230 EP10/H22.2.33. 4 3 1933 PHANTOM II. VIBRATION BOOM PERIODS. -12-MY. We have had a bad case (12-MY) of the above. As a chassis, the period was noticeable,… | ||
| Scan280 | Procedure to potentially reduce 'booming' in new cars and requesting information on its effectiveness. | ||
| View original record | W/S. Hn. from Hs/Rm. X7230 Hs/Rm.5/KT.23.2.33. With reference to Hn14/I/22.2.33. Attached herewith is a copy of EPL10/H22.2.33. which I think is interesting though there is not the least doubt that on… | ||
| Scan281 | Vibration boom periods, an invitation to test a new car, and the use of rubber for insulation. | ||
| View original record | X7230 Rm. at W. c. to JLE. Hn15/I/24-2-33. VIBRATION BOOM PERIODS. Hs/Tm5/KT23-2-33. We have had a word with JLE. and asked him to collect any information he can which may help to give you an idea of… | ||
| Scan282 | Arrangement to test an extended exhaust pipe on a 20 MY car. | ||
| View original record | S/W. Rm. 17230 LE9/C/24.2.33. Copy to Hn. Re Extended Exhaust Pipes. With reference to the various correspondence which has passed between you and Hn., I hope to have 20 MY. ready for test on… | ||
| Scan283 | To J.L.E. arranging a trial of extended exhaust pipes on a 20.MY model. | ||
| View original record | W/S. X7230 To J.L.E. from Hs/Ltd. c. Hn. Hs/Ltd.6/KT.27.2.33. RE. EXTENDED EXHAUST PIPES. LE9/C/24.2.33. We shall be interested to try 20.MY as suggested, and provided we do not hear from you that the… | ||
| Scan284 | Arranging a visit to London to test a trials car fitted with extended exhaust pipes. | ||
| View original record | S/W. (Hs/RM) c. to Hs/Lid. Bag. X7230 Hn1/1/28-2-33. EXTENDED EXHAUST PIPES. With reference to your proposed visit to London to- morrow to try Trials car 20-MY which has an extended exhaust pipe, will… | ||
| Scan285 | Follow-up memo regarding the testing of extended exhaust pipes on a 20 MY vehicle. | ||
| View original record | S/W. Hs/Rm. Copy to Hn. X7230 Rm LE4/C/3.3.33. Re Extended Exhaust Pipes. With reference to your visit to London last Wednesday when you tried 20 MY. with different exhaust pipes, will you please let… | ||
| Scan286 | Design and testing of extended exhaust pipes and fishtails. | ||
| View original record | X7230 W/S. To JLE. from Hs/Rn. Hs/Rm.3/KT.6.3.33. C. to Hn. EXTENDED EXHAUST PIPES. With reference to LE4/C/3.3.33. and our run on 20-MY. We understand that both you and Hn. agree that if the pipe can… | ||
| Scan287 | Fitting of extended 'fish tail' exhaust pipes on the 40/50 HP chassis. | ||
| View original record | LID S/W. Hs/Rm. Copy to Hn. [text is struck through] Re Extended Exhaust Pipes. With reference to your Hs/Rm3/KT6.3.33., I note that 40/50 HP. chassis will now be coming through on test with the fish… | ||
| Scan288 | Standardisation of a complete exhaust system with a resonant silencer to reduce cost and exhaust boom. | ||
| View original record | RR 785 (10M) (37133. 28-10-32) BM. 3/9064/1. X7230 COMPLETED 6.4.33. STANDARDISATION of CHASSIS PARTS. Date 22.9.32. 7120 X No. 7230. Drawing EX. No. 3808 Part List Description of Parts. Complete… | ||
| Scan289 | Record detailing the introduction of a new part to a chassis series, including costs and testing date. | ||
| View original record | STANDARDISATION of CHASSIS PARTS The number of the first chassis on which the new part will be fitted. 0.2 series. Date when chassis will be handed to test. 19th Nov.1932. Cost of scrapped material,… | ||
| Scan290 | Tests and issues with extended exhaust pipes, leading to a decision to cease providing them. | ||
| View original record | S/W. a. to WK. b. to D/BP. c. to Hs/Rm. x7230 Rm HnB/I/4-4-33. GLR-56 - MISS LUCY LOGAN. HA/SB12/HR3-4-33. We have seen a copy of MK4/HK31-3-33. Will the next exhaust pipe you propose to supply extend… | ||
| Scan291 | Modifications to the exhaust swan neck on chassis GLR-56 for Miss Lucy Logan. | ||
| View original record | W/S. c to MK. c to D/PP. c to Hs/Rm. X7230 Hd/SB23/HR.5.4.33. re CHASSIS GLR-56. MISS LUCY LOGAN. ------------------------- Reference HmS/1/4.4.33. We note the contents of your memo but think that in… | ||
| Scan292 | Preparation and despatch of an extended exhaust pipe for chassis GLR-56, belonging to Miss Lucy Logan. | ||
| View original record | S/W. c. to MK. c. to D/Rm. c. to Hs/Rm. Y7230 Hn12/I/6-4-33 GLR-56 - MISS LUCY LOGAN. HA/SB23/HR3-4-33. We note that, with the extended exhaust pipe you propose to supply, the snout will be flush with… | ||
| Scan293 | Customer complaints and proposed solutions for exhaust boom issues on the Phantom II model. | ||
| View original record | Hs. O.E. [Struck through] BY. [Struck through] Wor. [Struck through] JLE Lillie Hall. [Underlined] X7230 [Handwritten] EP3/H3.4.33. re. PHANTOM II. EXHAUST BOOM PERIODS. [Underlined] Further to our… | ||
| Scan294 | Request to prepare for a series of tests on the Phantom II large exhaust silencer. | ||
| View original record | x7230 To RHC. from Hs/Lid. Hs/Lid.14/KT.3.7.33. PHANTOM II LARGE EXHAUST SILENCER. We wish to carry out a series of tests on 22-EX. on the large exhaust silencer to Hs.789 and 790. Will you please… | ||
| Scan295 | Power loss found in the exhaust systems for the Phantom II (8-litre). | ||
| View original record | X7230 EXPERIMENTAL DEPARTMENT REPORT REFERENCE:- Subject of Report :- Exhaust Systems on Phantom II (8-litre) with regard to Power Loss. General Conclusions :- That too much BHP. is lost in the… | ||
| Scan296 | Comparative test results for various exhaust systems on the Phantom II engine. | ||
| View original record | COPY. PHANTOM II EXHAUST TESTS. Comparative tests between several types of exhaust systems have been taken with regard to their respective power losses from the maximum open exhaust figure. These have… | ||
| Scan297 | Analysis of power loss in various exhaust system components, comparing standard, Vokes, and large resonant silencer setups. | ||
| View original record | -2- An analysis of this system is shown on (Hs.1311) giving the power loss to all of the component parts, accompanied by a sketch under which condition the complete system was tested. Taking… | ||
| Scan298 | Summary report on the efficiency of a large resonant silencer compared to the production model. | ||
| View original record | -3- In conjunction with the large resonant silencer which has an outlet 2¼" diameter; the swan neck pipe is also 2¼" internal diameter. Summarising; if as hoped, it is possible to quieten this… | ||
| Scan299 | Analysis of power loss to a large resonant exhaust system for a Phantom (8 Litre) engine. | ||
| View original record | PHANTOM (8 LITRE) ANALYSIS OF POWER LOSS TO LARGE RESONANT EXHAUST SYSTEM MANIFOLD DOWNTAKE PIPE AND FRONT EXP BOX 1ST BEND MAIN PIPE OUTER SHELL TOP HAT SWAN NECK END BAFFLE BHP RPM ① COMPLETE… | ||
| Scan300 | Stamped document cover or reverse page from the company's print room. | ||
| View original record | ROLLS-ROYCE, LTD PRINT ROOM APR 10 1934 DERBY. | ||
| Scan301 | Graph comparing the power output and back pressure of an 8-litre Phantom engine with various exhaust systems. | ||
| View original record | PHANTOM (8 LITRE) POWER COMPARISONS WITH VARIOUS EXHAUST SYSTEMS ① OPEN EXHAUST (8.00 LENGTH PIPES FROM EACH PORT (H189/790)) ② LARGE RESONANT SILENCER COMPLETE WITH SWAN NECK Hs 189/790 ③ STOKES… | ||
| Scan302 | Page with a receiving stamp from the T Room in Derby. | ||
| View original record | ROLLS-ROYCE, LTD. T ROOM APR 10 1934 DERBY. | ||
| Scan303 | Scheme for modifying the exhaust system on the 20/25 & 40/50 HP chassis. | ||
| View original record | X723D G.W.H - see me Hs. Pm BY/Cgh.10/N.20.4.34. Re: 20/25 & 40/50 HP. Chassis - Exhaust System. On 28-EX. the exhaust nozzle is bolted on to the rear end of the exhaust pipe, and we should like to… | ||
| Scan304 | Issues with exhaust systems on Terraplane mountings and evaluating alternative suspension designs. | ||
| View original record | To E. from Hs/Rm. X7230 F250 423 Hs/Rm. 7/KW. 26.4.34. Exhaust Systems. When we come on to the Terraplane mounting the exhaust system requires more freedom than at present. On existing cars there is… | ||
| Scan305 | The failure of the spring mounting on the 28-EX exhaust system. | ||
| View original record | To E. c. to By. X 7230 Hs/GWH.3/KW.5.5.34. Re. Exhaust System, 28-EX. The spring mounting of the exhaust system has not been satisfactory. There was considerable movement at the rear end of the… | ||
| Scan306 | Approving the standardisation of an adjustable exhaust nozzle for the 25 HP and Phantom chassis. | ||
| View original record | Y723a To By/Cgh: Hs/GWH.9/KW.7.5.34. Re. 20/25 & 45/50 Chassis. Exhaust Nozzle. We see no reason why the adjustable exhaust nozzle should not be instructed for the 25 HP. chassis as well as the… | ||
| Scan307 | Solution for a one-beat exhaust noise on Phantom models by fitting an improved C.I. bend. | ||
| View original record | 7230 Hs/CWH.7/MJ.9.5.34. To Wor. From Hs/CWH. c.c. to Sg. c.c. to E. c.c. to Hy. c.c. to Sft. c.c. to Hd. One beat exhaust noise on Phantoms. We have overcome the pronounced exhaust beat by fitting an… | ||
| Scan308 | Standardisation of a C.I. bend for an exhaust hot spot to reduce one beat note. | ||
| View original record | RR 785 (SM) (B2674, 16-10-33) BM. 3/262/6. COMPLETED 12.7.34. 40/50 STANDARDISATION of PARTS. Date 15.5.34. Handwritten date: 22-6-34 Description of Parts. C.I. BEND FOR EXHAUST HOT SPOT. X No.7230.… | ||
| Scan309 | Cost estimation for extra jigs, tools, equipment, and scrap related to production on the 'T' series chassis. | ||
| View original record | STANDARDISATION OF PARTS FOR THE WRAITH E.S.M. Est. cost of extra jigs, tools and equipment (Sft/Ws.15.6.34) £15.0.0. If brought on to production at 1st chassis in 'T' series (Sft/GH.25.5.34) cost of… | ||
| Scan310 | Standardisation of parts for an adjustable exhaust nozzle. | ||
| View original record | RR 788 (SM) (82574, 16-10-33) BM. 3/262/c. COMPLETED 20.7.34. 40/50 STANDARDISATION of PARTS. Description of Parts. ADJUSTABLE EXHAUST NOZZLE. Origin. To allow for the varying design of overhang of… | ||
| Scan311 | Estimated cost for standardizing parts fitted to the 'S' series. | ||
| View original record | STANDARDISATION of PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.20.6.34) £52.0.0. These parts have been fitted from the beginning of 'S' series. [Stamp]: RECEIVED 21 JUN 1934… | ||
| Scan312 | Proposal to delete the exhaust cut-out fitting on the Phantom II chassis due to new flexible engine mountings. | ||
| View original record | X7230 To Sgl-and-Wer. from E. E.1/HP.31.8.34. C. HS By re Exhaust Cut-out on Phantom II Chassis, and Flexible Engine Mounting. ----------------------------- On the present P.II chassis the rear… | ||
| Scan313 | Discontinuation of the exhaust cut-out on the Phantom II chassis due to the flexible engine mounting. | ||
| View original record | *HS 7230 To E. from Sg. Copy to Wor.Hs. By E.H. Exhaust Cut-out on P.II Chassis and Flexible Engine Mounting. Sg6/E6.9.34 Referring to E.1/HP.31.8.34 I note that with the flexible engine mounting it… | ||
| Scan314 | Standardisation of parts for a flexible exhaust mounting. | ||
| View original record | RR 755 (SH) (57312, 29-12-33) BM 3/646/2 COMPLETED 7.1.35. 40/50 STANDARDISATION of PARTS. Date 16.10.34 X No. 7230. Drawing LEC. No. 4042. Part List Description of Parts. FLEXIBLE EXHAUST MOUNTING.… | ||
| Scan315 | Note on the estimated cost of extra jigs, tools and equipment for the 'T.2' series chassis. | ||
| View original record | STANDARDIZATION of PARTS Est. cost of extra jigs, tools and equipment (Sft/Ws.23.10.34)£23.0.0. Already instructed forthe 51st chassis in "T.2" series, without scrap (Sft/GH.23.10.34). from HP/A G/BB… | ||
| Scan316 | Instructions regarding new drawings for 40/50 HP Chassis exhaust fittings and silencer modifications. | ||
| View original record | To RHC. c. Hs/Wym. X7230 WYMN BY/CS1/EH.29.1.35. Re 40/50 HP. Chassis - Exhaust Fittings - Sec;5230. Silencer fitted with 20/25 HP. Baffles etc., and Patch for revised 5th. Crossmember, Continental… | ||
| Scan317 | Instruction to manufacture and fit a 40/50 HP exhaust silencer for a short type chassis. | ||
| View original record | x7230 To RHC. Hs/Wym.11/KW.1.2.35. 40/50 HP, Exhaust System for Short Type Chassis. Will you please instruct for one 40/50 HP. exhaust silencer to be made up to E.86698 and fit same to chassis 28-EX.… | ||
| Scan318 | Test results for Phantom II exhaust hot spot temperatures under different driving conditions. | ||
| View original record | To Hs/Rm. X223 Hs/GR.10/KW.13.4.35. Phantom II Exhaust Hot Spot Temperatures. --------------------------------------- Tests carried out on 28-EX, using an Elliot Millivoltmeter No.1121620 and thermo… | ||
| Scan319 | Cover note regarding figures obtained for hot-spot temperatures on a Phantom exhaust. | ||
| View original record | To E. L723 Hs/Rm.8/KW.15.4.35. Hot-Spot Temperatures. Here are some figures we obtained on the Phantom exhaust heated hot-spot. Hs/Rm. Att : Hs/GR.10/KW.13.4.35. | ||
| Scan320 | Material choice and testing for Phantom II & 25/30 HP exhaust silencers. | ||
| View original record | x723 To By. Hs/Wym.14/KW.28.8.36. Phantom II & 25/30 HP. Exhaust Silencers. In reply to memo. BY.12/G.25.8.36, this is the first intimation we have had of any Staybright parts breaking down in… | ||