Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Request to test a worm-driven jack from the Dunlop Rubber Co. and to reply to a query about its handle. | ||
| View original record | X4124 ROY/GEAG/K21.11.23 Hs. The Dunlop Rubber Co.,have again forwarded to us one of their special Worm-driven Jacks,and we send you herewith copy of letter received from the said firm concerning… | ||
| Scan002 | Copy of a letter from The Dunlop Rubber Co. regarding the supply of a special worm-driven jack. | ||
| View original record | Copy of letter received from The Dunlop Rubber Co., Easy Row, Birmingham. M.M. 19th Nov.1923. Dear Sirs, With reference to your letter of the 24th.ult., we have pleasure in advising the despatch by… | ||
| Scan003 | The testing of a sample Dunlop Worm Driven Jack and the decision to adopt them as standard. | ||
| View original record | Hs. V4124 ROY/GEA3/K11.12.23 With reference to the sample Dunlop Worm Driven Jack, you are now testing. We should be glad to have a report from you concerning this at your early convenience, and would… | ||
| Scan004 | Sending of two sample Dunlop jacks for testing. | ||
| View original record | X4124 Hs. ROY/GEA31/K18.12.23 RE DUNLOP JACKS. Further to our memo ROY/GEA3/K11.12.23, we send you herewith 2 further sample Jacks 1 - 7" and 1 - 9" received from The Dunlop Co, to-day. Will you… | ||
| Scan005 | Chasing a report on jacks submitted by the Dunlop Co. | ||
| View original record | Hs. X4124 ROY/GEA18/K10.1.24 RE DUNLOP JACKS. Referring to our memo ROY/GEA31/K18.12.23. We have to-day received a letter from the Dunlop Co.,asking if either of the Jacks submitted suit our… | ||
| Scan006 | Request for a report on Dunlop Jacks prior to placing further production orders. | ||
| View original record | X4124 Hs. ROY/GEA4/K7.2.24 WADE & CROWLEY RE DUNLOP JACKS. We should be glad to have your report on the above at your early convenience, as we are about to place further orders for supplies of these… | ||
| Scan007 | Query about sourcing Dunlop Jacks due to difficulty obtaining adequate supplies of Michelin Jacks from France. | ||
| View original record | Hs. 4124 Wd/CEA18/K16.4.24 Can you now give us some definite information regarding Dunlop Jacks? We would point out that we are having considerable difficulty in obtaining adequate supplies of… | ||
| Scan008 | Comparison of Michelin and Dunlop jacks, outlining dissatisfaction with Dunlop models and specifying required ranges for 40/50 HP and 20 HP cars. | ||
| View original record | Y4174 To Roy. From Hs. c. to BY. c. to Wd/GEA. Hs1/LG17.4.24. RE. DUNLOP JACKS. X391 Y4174 We have no complaint to make against Michelin Jacks. We have used them for years - they are very compact and… | ||
| Scan009 | Modifications and design improvements for a Dunlop Jack. | ||
| View original record | X4124 To Hs from RHC. RHC4/BE. 13.12.24. RE DUNLOP JACK. With reference to Dunlop Jack which you have requested should be reduced in height by .500". This was done by milling the base and reducing the… | ||
| Scan010 | The performance and limitations of a Dunlop Jack for Balloon Tyres. | ||
| View original record | +4124. Dec. 1924. DUNLOP JACK FOR BALLOON TYRES. X.4B65 X.4124 Lowest position of Jack - HEIGHT. At present. Previously. 5 11/16" 6 3/16" 1st. stage of Jack. 9 9/16" 10 7/16" 2nd. stage " " 11 5/8" 13… | ||
| Scan011 | Modified Dunlop Jack for trial. | ||
| View original record | Hs. X.4124 BY7/W.2.3.26. DUNLOP JACK. I am sending you herewith a modified Dunlop Jack which was handed to me by Colonel Matthew, on his visit to the Works last Friday. This Jack has a much finer… | ||
| Scan012 | Sending a double lifting jack with a ball bearing for testing and a potential lighter handle. | ||
| View original record | 44124 He. c.w.d. BYL/H. 26.1.26. Colonel Matthew was with us on friday last, and left with me a Jack of a double lifting type, having a ball bearing to support the load. I am sending the jack in… | ||
| Scan013 | The delivery and review of a Dunlop 'High Lift' Jack. | ||
| View original record | . Hs. X4124 BY/HM/G.3.7.26. re DUNLOP "HIGH LIFT" JACK. -------------------------- We are sending you herewith a Dunlop jack complete with two handles, which has been received from the Dunlop Rubber… | ||
| Scan014 | Letter from Dunlop Rubber Co. Ltd. concerning the design and features of a new 'High Lift Jack'. | ||
| View original record | COPY. DUNLOP RUBBER CO. LTD., FORT DUNLOP, ERDINGTON, BIRMINGHAM. Our Ref. Accessories Section. FRC.V.13. June 30, 1926. Messrs. Rolls Royce Ltd., Mr. Harvey Bailey. Derby. Dear Sirs, HIGH LIFT JACK.… | ||
| Scan015 | Letter from Dunlop Rubber Co. Ltd. regarding a quotation and a meeting. | ||
| View original record | We are submitting our quotation and Colonel Matthew and the writer looks forward to having the pleasure of discussing the matter with you on Tuesday morning next. Yours faithfully, FOR DUNLOP RUBBER… | ||
| Scan016 | The urgent need to source a suitable jack for the Phantom chassis. | ||
| View original record | X4124 Wd. c. Hs. BY16/H. 20.9.26. 9-30 21/9/26 RE JACK FOR PHANTOM CHASSIS. Some six weeks or two months ago, Colonel Matthew came over to submit to this Company an improved jack for the Phantom… | ||
| Scan017 | Communications with Dunlop Rubber Co. about the availability of a jack for the 'Phantom' chassis. | ||
| View original record | X4124 11-0 29/9/26 By. from Wd. c.to Hs. Wd1/NJ27.9.26. Re Jack for "Phantom" Chassis. The remarks in yours By16/H20.9.26 were duly communicated to the Dunlop Rubber Co. and we are now in receipt of a… | ||
| Scan018 | Correspondence regarding the procurement of a suitable jack from the Dunlop Rubber Co. for the 'Phantom' Chassis. | ||
| View original record | By. from Wd. c. to Hs. c. to OO/GEA X4124 2-0 Wd1/NJ5.10.26. Re Jack for "Phantom" Chassis. I confirm mine Wd1/NJ27.9.26. We are now in receipt of a further letter from the Dunlop Rubber Co. dated 4th… | ||
| Scan019 | Letter from Dunlop Rubber regarding the supply and delivery of jacks for a 40/50 HP chassis. | ||
| View original record | Copy of letter from:- THE DUNLOP RUBBER CO.LTD., Fort Dunlop, Erdington, Birmingham. Ref.- Manufacturers' Div. JSM. Oct.4th, 1926. Messrs.Rolls-Royce Ltd., Derby. Dear Sirs, JACKS FOR 40/50… | ||
| Scan020 | The unsuitability of Dunlop jacks for the Phantom chassis and the alternative of sourcing them from Michelin. | ||
| View original record | Wd. c. to Hs c. to OG/GEA X4124 BY/HM3/G.9.10.26. re JACK FOR "PHANTOM" CHASSIS. Referring to your memo Wd1/NJ5.10.26. and the attached copy of letter from the Dunlop Co., the sample jacks submitted… | ||
| Scan021 | Modification to a jack, replacing a hardened steel washer with a phosphor bronze one to prevent failure. | ||
| View original record | Hs. BY6/H.4.1.27. JACK. Colonel Matthew has come over to submit a jack which has been modified to overcome the trouble experienced during his last visit. The trouble was not that the screw of the jack… | ||
| Scan022 | Blueprint cross-section of a Dunlop Double Lift Jack with handwritten annotations. | ||
| View original record | DUNLOP DOUBLE LIFT JACK 1.50" MORE HAND ADJUSTMENT IS REQUIRED. THRUST RACE HERE WOULD REDUCE EFFORT REQ'D TO OPERATE JACK ROLLS-ROYCE, LIMITED, PRINT ROOM 9 FEB 1927 DERBY THIS LOCKING RING IS FORCED… | ||
| Scan023 | Test report and analysis of a Dunlop Jack, detailing its dimensions, failures, and potential improvements. | ||
| View original record | To EY. from Hs. Hs3/LG9. 2.27. DUNLOP JACK. Below are given particulars of the latest Dunlop Jack received for test purposes. (This jack has no identification No. or name.) Minimum height… | ||
| Scan024 | Modifications to the Dunlop jack, including adding jack pads or increasing its base height. | ||
| View original record | To BY. from Hs. [Handwritten]: X Hunt HS4/LG24.2.27. DUNLOP JACK. We agree, that as we have no selection and are at present supplying an unsuitable jack, we cannot be too critical. As regards the… | ||
| Scan025 | Confirming the suitability of the latest Dunlop wheel jack for the 20 HP chassis. | ||
| View original record | To BY. from Hs/AJL. X4124 Hs/AJL1/LG18.5.27. DUNLOP WHEEL JACK. The latest Dunlop jack which we decided was suitable for the Phantom conforms in all respects to the 20 HP. chassis requirements, and is… | ||
| Scan026 | Instructing the Experimental Department to test a scheme for a rear axle jack pad. | ||
| View original record | X4124 BY/IND. C.R.H.C. c.Hs/Mr.Lidsey. BY25/H. 25.5.27. REAR AXLE - PAD FOR JACK. Please instruct to the Experimental Dept. the scheme which you got out, that can be applied to an axle which is built… | ||
| Scan027 | Fitting, testing, and recommended standardisation of jacking pads for the Phantom rear axle. | ||
| View original record | To R. from Hs/AJL. c. to BJ. Wor. c. to E. Da. c. to BY. Handwritten: X4124 Hs/AJL1/LG26.5.27. PHANTOM REAR AXLE JACK PAD. Handwritten: X4124 Handwritten (crossed out): X7350 We have fitted to 12-EX… | ||
| Scan028 | Blueprint detailing the position and angles for a brazed jack pad on a flanged component. | ||
| View original record | ENDS PROJ 56° 27° 3° 15' ¢ OF JACK PAD NEAR SIDE PAD TO BE BRAZED IN POSITION AS SHOWN | ||
| Scan029 | Analysis of a damaged Dunlop Jack, identifying over-winding as the cause and proposing modifications. | ||
| View original record | Hs. X.4124 BY1/H. 9.6.27. W.P.S. W.B.G. DUNLOP JACK. ------------ The Dunlop Jack which was damaged by Sales has been carefully examined by Mr.Carr of the Dunlop Company, who reports that the whole… | ||
| Scan030 | Failure of a Dunlop Jack and suggestions for a new sample. | ||
| View original record | S/W. (Copy to Hs) X4124 Sg12/M/10.6.27. Re: Dunlop Jack. Many thanks for BY1/H9.6.27. We have noted with interest that the Dunlop Company's report on the Jack which failed, is to the effect that "the… | ||
| Scan031 | Standardisation of jack pads fitted to the rear axle to reduce difficulty in jacking. | ||
| View original record | RR 755 REVISED (10H) (DE 444 6-10-26) BM. COMPLETED 16.6.27. STANDARDISATION of CHASSIS PARTS. Date 26.5.27 X No. 4124 7350 Drawing No. Part List Description of Parts. JACK PADS FITTED TO REAR AXLE.… | ||
| Scan032 | Standardisation report detailing the fitting of a new part to a chassis, including test date and associated costs. | ||
| View original record | (1) The number of the first chassis on which the new part will be fitted. E.2. (2) Date when the chassis will be handed to test. 1.10.27. (3) Cost of scrapped material, if any. Nil (4) Cost of jigs… | ||
| Scan033 | Letter to the Dunlop Rubber Company regarding an over-winding issue with a Double-Lift Jack for a Phantom car. | ||
| View original record | C. Mailing Dept. c. Hs. X4124 BY9/H. 6.9.27. September 6th, 1927. Tuesday. The Dunlop Rubber Company, Ltd. For the attention of Colonel Matthew, Fort Dunlop, Erdington, Birmingham. Dear Sirs,… | ||
| Scan034 | Letter detailing issues with a jack's fine screw and distorted thread, which is being returned dismantled for examination. | ||
| View original record | - 2 - It certainly does appear as if some more adequate stop than that supplied by the leaving of the thread towards the end of the fine screw, unmilled, is insufficient for the purpose. We are… | ||
| Scan035 | Despatch of a dismantled jack to Messrs. Dunlop, Birmingham. | ||
| View original record | To BP. from Hs. c. to Mt. (Stores). X4124 Hsl/LG6.9.27. We are sending into the Stores to be despatched to Messrs. Dunlop, Birmingham - for the attention of Col. Matthews :- 1 dismantled Jack. Will… | ||
| Scan036 | Standardisation and cost of a new Dunlop road wheel jack for the Phantom model. | ||
| View original record | Hs. from BJ. c. to C. Sg. COPY. Y4124 BJ2/Av/D28.9.27. STANDARDISATION SHEET. X.4124 I have passed and return herewith the std. sheet for the new jack for road wheels for the Phantom and note that the… | ||
| Scan037 | Standardisation of a new Dunlop jack for road wheels to suit low pressure tyres. | ||
| View original record | RR 755 REVISED (10H) (DE444 6-10-26) BM. COMPLETED 28.9.27 STANDARDISATION of CHASSIS PARTS. Date 8.9.27 Description of Parts. JACK FOR ROAD WHEELS. Origin. Improved range to suit low pressure tyres.… | ||
| Scan038 | Standardisation form for chassis parts detailing implementation questions. | ||
| View original record | STANDARDISATION OF CHASSIS PARTS (1) The number of the first chassis on which the new part will be fitted. When existing stocks are used up. (2) Date when the chassis will be handed to test. do .. (3)… | ||
| Scan039 | Evaluating a sample wheel jack from Tangye for 20 HP cars, with suggestions for improvement and an inquiry about a similar jack for 40/50 cars. | ||
| View original record | To ROY/GEA. from Hs/AJL. [strikethrough]V4124[/strikethrough] Hs/AJL1/LG4. 9. 28. WHEEL JACK FOR 20 HP. CARS. Y3117 In response to your enquiries we have received a sample jack suitable for 20 HP.… | ||
| Scan040 | Continuation memo specifying load capacities and suggesting a Tangye's jack as a better alternative to the Dunlop jack. | ||
| View original record | contd :- -2- Ordinary normal load 15 cwts. Maximum load. 2 tons. We should imagine Tangye's could offer us something better than the Dunlop jack at present used. Hs/A.J.Lidsey. | ||
| Scan041 | Comparing a new Tangye jack against the existing Dunlop jack for the 40/50 HP chassis. | ||
| View original record | To BY. from Hs/AJL. c. to Wor. Sg. X4124 Hs/AJL1/LG3. 5. 29. JACK FOR 40/50 HP. CHASSIS. X4491 Some time ago we asked Messrs. Tangye to submit to us a sample jack suitable for our 40/50 HP. chassis -… | ||
| Scan042 | Alterations to a sample jack and sending it to sales for standardisation. | ||
| View original record | contd :- -2- The handle might be altered advantageously, the sliding sleeve could be made better by being spring loaded and the wooden handle should be made detachable (the wood screw is unnecessary)… | ||
| Scan043 | The supply of 'Tangye Jacks' for the 40/50 HP Chassis. | ||
| View original record | W/S. X4124. To Cx/Hdy from ROY. c. to Hs./Mr. Lidsey. ROY5/MG23.8.29. re. TANGYE JACKS. X.4491 X.4124 Replying to Cx/Hdy7/CP21.8.29, kindly note Messrs Tangye are not yet in a position to put forward… | ||
| Scan044 | The failure of Dunlop Super D.L. Jacks due to a stripped thread in the cast iron barrel. | ||
| View original record | X4124. To Ey. from Hs/AJL. Hs/AJL.1/MJ.18.9.29. DUNLOP SUPER D.L. JACK. ----------------------- We send you herewith parts taken from some Dunlop Super D.L. Jacks which have failed in the course of… | ||
| Scan045 | The quality control issues with a new supplier for wheel jacks for 20 HP cars. | ||
| View original record | X4124 To By. From hs/AJL. C. Wor. C. Roy. hs/AJL1/AD7.10.29. WHEEL JACKS FOR 20 HP+ CARS. X4124 X4491 The position of wheel jacks for the 20 HP. car can be summarised as follows :- At the beginning of… | ||
| Scan046 | Recommendation to cease ordering Tangye jacks and instead use improved Dunlop jacks for the 20 HP and Phantom II cars. | ||
| View original record | -2- we would not accept them otherwise. OWING to this having occurred we should recommend that no further Tangye jacks be ordered. The Dunlop Super D.L. jack is suitable for the 20 HP. chassis (now… | ||
| Scan047 | Design specifications and compromises for a suitable hydraulic jack. | ||
| View original record | To Hs/AJL. From Ev. COPY TO Sg. (For Sales). X4124. EV3/24.2.30. X.3175 X.4080 X.3117 Y4124. RE. HYDRAULIC JACKS. We thank you for your Hs/AJLL/MJ/17.2.30. and regret that our letter questioning the… | ||
| Scan048 | The specifications and requirements for a new hydraulic car jacking system, referencing issues with existing jacks. | ||
| View original record | -2- extreme occasions one could slack back the jack hydraulically after the first attempt at lifting and screw out the extension. This gives a hydraulic lift of 5.750 ins. If the camber of the road be… | ||
| Scan049 | Test report on the new Dunlop Super Double Lift Jack. | ||
| View original record | BY. From HS/AJL. X4124. Hs/AJL.2/MJ.14.5.30. DUNLOP SUPER DOUBLE LIFT JACKS. We have tested the new type Dunlop Super Double Lift Jack submitted for our criticism and described in a letter from… | ||
| Scan050 | The performance and potential improvement of a jack mechanism, comparing a new model to the standard Dunlop Jack. | ||
| View original record | -2- against it. The bronze bush which carries the pinion also suffered slightly. The universal attachment would be really good if it were arranged to give a greater range of angularity before this… | ||
| Scan051 | Test report on the new Dunlop Super Double Lift Jack, recommending its production due to successful testing. | ||
| View original record | *4124. BY. From Hs/AJL. C. to Mx. Hs/AJL.1/MJ.21.5.30. DUNLOP SUPER DOUBLE LIFT JACKS. Further to Hs/AJL.2/MJ.14.5.30, we have carried out a further test on the new type double lift Dunlop Sample… | ||
| Scan052 | Standardisation sheet discussing an engine centre support for F.S. & M.S. engines and a Dunlop Super Double Lift Jack. | ||
| View original record | HS. FROM RS. AJL. X4124. RS2/M2.6.30. STANDARDISATION SHEETS Please find 2 following sheets herewith:- F. ENGINE. CENTRE SUPPORT FOR TOP WATER PIPES ON F.S. & M.S. ENGINES. Agreed to by R. and E.… | ||
| Scan053 | Standardisation and required improvement of the Dunlop Super Double Lift Jack No. 10 due to a short bearing. | ||
| View original record | BY. From Hs/AJL. X4124 Hs/AJL.2/MJ.4.6.30. DUNLOP SUPER DOUBLE LIFT JACK NO:10. With reference to the new Jack we are endeavouring to standardise for both chassis. The Standardisation Sheet has been… | ||
| Scan054 | Standardisation test report for a Dunlop Super Double Lift Jack No. 10. | ||
| View original record | RR 786 REVISED (10H) (DG 348 19-7-29) 5M. 6/643. COMPLETED 4.8.30. X4124 STANDARDISATION of CHASSIS PARTS. Date 21.5.30. X No. 4124. Drawing No. Part List Description of Parts. DUNLOP SUPER DOUBLE… | ||
| Scan055 | The selection and pricing of a suitable jack for the Peregrine. | ||
| View original record | 4124. Roy. From Hs/Lid. Hs/Lid.5/MA.16.11.32. Re. JACKS FOR PEREGRINE. Will you please obtain a price for the Dunlop Dome Type Jack No. D.L.5 which was submitted for test, for use on Peregrine. We do… | ||
| Scan056 | Request to order six Dunlop Dome Type Jacks (D.L.5.) with specific T-type handles for evaluation. | ||
| View original record | X4124. To Roy. From Hs/Lid. Hs/Lid.7/MJ.17.11.32. JACKS FOR PER. LL. In order that we may obtain more experience with the Dunlop Dome Type Jack D.L.5., will you please order six similar to the sample… | ||
| Scan057 | Specification and test results for a Dunlop Jack for the Peregrine model. | ||
| View original record | X4124. For Files. 1.12.32. DUNLOP JACK FOR PEREGRINE. The Dunlop Jack (Type D.L.5) made for Dunlops by Lake & Elliott, and agreed to for Peregrine,(29.11.32.) has the following particulars.. Minimum… | ||
| Scan058 | Blueprint of a 5-inch DL Dome Jack. | ||
| View original record | 7 1/4 LIFT 12 1/4" 5" 4 3/4 x 2 7/8 5" DL DOME JACK. M.1706. Clover Ellis Ltd GRB 25/11/32 JR | ||
| Scan059 | Sample jacks for the Bentley chassis from the Dunlop Co. | ||
| View original record | r4124 BWG Hs. BY/Mtn25/N.13.12.33. See me Hs Re: Jacks for Bentley Chassis. We attach hereto copy of letter received from the Dunlop Co. in regard to two sample jacks they are sending us showing the… | ||
| Scan060 | Letter from Dunlop Rubber Co. Ltd. concerning the supply and specifications of three Dome type Jacks. | ||
| View original record | Copy. THE DUNLOP RUBBER CO. LTD., FORT DUNLOP, ERDINGTON, BIRMINGHAM. FRC.N.19. Messrs. Rolls-Royce Ltd., Derby. 11.12.33. Dear Sirs, Re: Dome Type Jacks. ---------- I am sending you under separate… | ||
| Scan061 | Letter from Dunlop Rubber Co. Ltd. discussing modifications and pricing for different types of jacks. | ||
| View original record | 2. We are refraining from sending our official quotation through to your Buying Department until we hear from you that either of the sample Jacks is approved, but we would mention that the one with… | ||
| Scan062 | Test report and feedback on Dunlop Dome Jacks for the 3½ Litre Bentley Chassis. | ||
| View original record | X 4124 To By/Mtn. From Hs/Bwg. Ha/Bwg.10/KT.15.12.33. C. to E. DUNLOP DOME JACKS FOR 3½ LITRE BENTLEY CHASSIS. We have now tested the three jacks which were recently sent to us by the Dunlop Co. and… | ||
| Scan063 | Requesting the despatch of two Dome type jacks to the Dunlop Co. for experimental testing. | ||
| View original record | C/Mt. [crossed out] Roy [crossed out] Hs. X412P BY/Mtn11/N.15.12.33. Kindly note the Experimental Dept. have sent into the Despatch Stores two Dome type jacks that were submitted to by the Dunlop Co.… | ||
| Scan064 | The testing of Dunlop dome jacks for the 3 1/2 Litre Bentley chassis. | ||
| View original record | Rm. x 412P. To By/Mtn. From Hs/Bwg. Hs/Bwg.10/KT.15.12.33. c. to E. DUNLOP DOME JACKS FOR 3 1/2 LITRE BENTLEY CHASSIS. We have now tested the three jacks which were recently sent to us by the Dunlop… | ||
| Scan065 | Tests carried out on two sample Dunlop Dome Jacks for Bentley Cars. | ||
| View original record | W/B to Gx. c. to Wor. c. to Hs. c. to Br. c. to Bys. c. to Nott. X4124 Hs/BWG.14/KW10.1.34. Re: Dunlop Dome Jack for Bentley Cars. --------------------------------- We have carried out tests on two… | ||
| Scan066 | The substitution of a Dunlop Dome Jack for Bentley cars. | ||
| View original record | S/W. Hs/Bwg. c. to Wor. Hs. c. " E. BY. c. " ROY BWG 4124 Cx1/KW19.1.34. Re- Dunlop Dome Jack for Bentley Cars. In reply to Hs/Bwg14/KW10.1.34, we have inspected the two jacks, and we agree with you… | ||
| Scan067 | Standardisation report for a modified Dunlop jack and handle. | ||
| View original record | RR 785B (SH) (52674, 16-10-33) BM. 3/262/6. X4124. Completed 6.2.34 BENTLEY STANDARDISATION of PARTS. Date 10.1.34 X No. 4124. Drawing No. Part List Description of Parts. MODIFIED DUNLOP JACK &… | ||
| Scan068 | Experimenting with a larger Mechanic Machine Co's universal joint on an EAC. 7 chassis. | ||
| View original record | X4183 TO BY. FROM AJS. C. to - HS. WD. AJS3/M28.5.25. MECHANIC MACHINE CO'S UNIVERSAL JOINTS. We send you herewith a copy of a letter we have sent to OY., in connection with a larger size of the… | ||
| Scan069 | The inspection of universal joints from the USA for Mr. Royce. | ||
| View original record | TO HS.) FROM AJS. YC183 AJS1/M25.6.25. UNIVERSAL JOINTS. We have received a note from OY. saying that a No.7. Mechanic Machine Co's universal joint (complete set) has been despatched from USA. We… | ||
| Scan070 | Receipt and inspection of Universal Joints from the Mechanic Machine Company, USA. | ||
| View original record | Y4183 Hs. BY/Cl/H. 4.9.25. UNIVERSAL JOINT. A set of Universal Joints supplied by The Mechanic Machine Company, USA. has been received for both the 20 HP. and EAC.7. chassis. These joints are at… | ||
| Scan071 | Requesting a report on Mechanic's Universal Joints from the USA and their potential fitment to various chassis models. | ||
| View original record | R.R. 258A (100 T) (S.H. 159. 11-8-89) G. 9800 TO HS. FROM AJS. X/4183 Copy to BY. AJS1/M16.10.25. re. MECHANIC'S UNIVERSAL JOINTS. Referring to the above, which we have received from USA., we should… | ||
| Scan072 | Forwarding a letter from Mechanics Machine Company requesting test results on universal joints. | ||
| View original record | To W. from BJ. BJ1/H6.11.25. 74183 Mechanics Machine Company. Rockford, Ill __________ The following is a copy of a letter received from these people:- Rockford, Ill. October 23, 1925. Messrs.… | ||
| Scan073 | The testing of universal joints supplied by the Mechanic's Machine Co., Rockford. | ||
| View original record | To BJ. from Hs/Rm. 44183 Hs/Rm1/LG7.11.25. MECHANICS MACHINE CO. Referring to BJ1/H6.11.25. The universal joints supplied by the Mechanic's Machine Co., Rockford, will be on test at the beginning of… | ||
| Scan074 | The fitting of a Mechanic's Universal Joint to a specific chassis. | ||
| View original record | Y4183 #5 To TMW from RHC. RHC13/BE. 10.11.25. RE MECHANIC'S UNIVERSAL JOINT -X.5340. The Mechanic's Joint to LeC's 2061-75 and Arrgt. Drawing G.52633 has now been fitted to Chassis 9.G.III. RHC. | ||
| Scan075 | Requesting information on a 'Mechanic's Joint' to respond to an offer from the manufacturing company. | ||
| View original record | R.R. 235a (100 T) (S.H. 159 11-8-20) G. 2600 ORIGINAL +4183 TO HS. FROM AJS. AJS2/M24.12.25. MECHANIC'S JOINT. The writer has received a personal letter from the Secretary of the Co. manufacturing… | ||
| Scan076 | The condition and lubrication of Mechanic's Joints after running 1623 miles. | ||
| View original record | Expl: Report. Expl: No. 7483 Ref. Hs/AJL/LG5.1.26. To R. from Hs/AJL. c. to CJ. BJ. c. to E. DA. c. to BY. AJS. c. to Wor. MECHANIC'S JOINTS. Layout embodying LeC. 2061/2075. This type of joint has… | ||
| Scan077 | Use of a large Mechanic's joint from the USA for the EAC.7 propeller shaft. | ||
| View original record | To BY. from AJS. c. to R. CJ. Hs. 4183 AJS1/M3.2.26. EAC.7. PROPELLER SHAFT. X.7340 X.4138 Referring to item (f) in the last weekly report, concerning the above, it was our intention that the large… | ||
| Scan078 | Recommendation from Mechanic's Machine Co. to use grease instead of oil in the sliding splined coupling on their universal joint. | ||
| View original record | TO HS. FROM AJS. Copy to -- BY. ORIGINAL X4183 AJS2/M8.2.26. MECHANIC'S UNIVERSAL JOINT. X4183 We have received a letter from the Mechanic's Machine Co., in which they recommend that a good grade of… | ||
| Scan079 | Design, testing, and modification of a mechanic's joint for a propeller shaft. | ||
| View original record | TO BY/C. FROM AJS. Copy to - HS. ORIGINAL XLH 83 AJS1/M24.2.26. MECHANIC'S JOINT. XLH 83 Referring to the 2nd. para. of BY/C3/H20226., in the layout submitted the portions for brazing to the propeller… | ||
| Scan080 | Letter from R.A. Rothermel Ltd. following up on the test results for Mechanics Universal Joint sets. | ||
| View original record | Telephone Nos Mayfair 578 & 579. X4183 Telegrams: Rothermel, Wesdo. London. R.A. Rothermel, Ltd. Manufacturers, Importers and Factors of Motor Car Components, Accessories, Tools, Wireless. Sole… | ||
| Scan081 | Letter to Messrs. R.A. Rothermal Ltd. regarding the testing of Mechanic Universal Joints from the U.S.A. | ||
| View original record | X4183 Expl: Dept: Hs2/LG. 29th. Mar. 1926. Messrs.R.A.Rothermal Ltd., 24 & 26 Maddox Street, Regent Street, London W.1. Dear Sirs, Referring to your letter of the 19th.inst. We have not carried out… | ||
| Scan082 | Letter from R.A. Rothermel Ltd. acknowledging tests on Mechanics Universal Joints and requesting further reports. | ||
| View original record | Telephone Nos Mayfair 378 & 379. Telegrams: Rothermel, Wesdo, London. X.4183 R.A. Rothermel, Ltd. Manufacturers, Importers and Factors of Motor Car Components, Accessories, Tools, Wireless. Sole… | ||
| Scan083 | Issues with torque tube control and advocating for a parallel control system for back axles and universal joints. | ||
| View original record | To Hs. Da. } FROM R. E. RG. } c. to BJ. Wor. BY. Y4183 R3/M21.4.26. RE. BACK AXLE CONTROLS AND UNIVERSAL JOINTS. X8005 X8350 CY. wrote some months ago about the even turning of a certain make of… | ||
| Scan084 | The performance of an American Mechanics Joint fitted to a 20 HP car propeller shaft over 14,215 miles. | ||
| View original record | To R. from Hs/AJL. c. to BJ. Wor. c. to Rg. E. c. to Da. By. c. to Cy. X4183 Hs/AJL1/T9.11.26. AMERICAN MECHANICS JOINT. X5300 We have run a 20 HP. car (9-GIII) with the propeller shaft fitted with… | ||
| Scan085 | Comparison of a cardan shaft joint with the American Mechanics Joint, highlighting the benefits of reduced lubrication. | ||
| View original record | Contd. -2- Hs/AJL1/T9.11.26. The absence of the necessity for lubrication during service is a very great disadvantage. Any modification that reduces the number of points to be lubricated during… | ||
| Scan086 | Proposed 5' universal joint for use on EAC.10, comparing it to other designs and outlining adaptations. | ||
| View original record | 4183 To BY. from DA. c. to BJ. Hs. DAA/M11.1.28. X.9340 X.7340 X.4183 EAC.10 UNIVERSAL JOINT. We send herewith N.sch. 2416 shewing the proposed 5" universal joint for use on EAC.10 It is intended to… | ||
| Scan087 | Design and manufacturing of a propeller shaft universal joint, comparing it to a 'Mechanic's type'. | ||
| View original record | DA. BY. from R. HS. c. to BJ. Wor. E. 4183 R1/M25.1.28. EAC.10 PROPELLER SHAFT. X.7340 UNIVERSAL JOINTS. X.4183 MECHANIC'S TYPE. My impression is that 5" is too small: we are running with one nearly… | ||
| Scan088 | Modifications to a universal joint and propeller shaft for the India 3 model. | ||
| View original record | BY. from DA. c. to BJ. Hs. +4183. DA2/M28.4.28. INDIA 3 - UNIVERSAL JOINT AND PROPELLER SHAFT. X.5340 X.4183 Herewith we send N.Sch.2589 shewing the 4 1/4" Mechanic's universal joint made on the lines… | ||
| Scan089 | Knocking, wear, and lubrication issues concerning the 20HP Mechanic's Joints. | ||
| View original record | To Hr. From RHC. c.to Hs. 74183 RHC1/BE31.8.28. RE: 20HP. MECHANIC'S JOINTS With reference to the mechanic's joints in accordance with N.S. 2589, which were fitted to 12-G-IV. When these were being… | ||
| Scan090 | Modifications to the mechanic's joint for the propeller shaft for 20 HP and 40/50 HP models. | ||
| View original record | RHO. c. Hs. ----- X4163 BY/Cgh5/G.28.9.28. re 20 HP. MECHANIC'S JOINT FOR PROPELLER SHAFT. ------------------------------------------ With reference to RHC1/BE.31.8.28. we are modifying our detail… | ||
| Scan091 | Standardisation sheet for Mechanics joints on the 20 HP model for the India 1V works. | ||
| View original record | To DA. from Hs/Rn. X4183 X5340 Hs/Rn5/LG17.12.28. We have sent a standardisation sheet round for the Mechanics joints on the 20 HP. We are quite aware that the joints we have been running on the 20… | ||
| Scan092 | Need and design for a test rig for mechanics joints. | ||
| View original record | To BY. To Wor. } FROM Hs. c. to Sft. c. to HY. c. to MX. X4183 Hs1/LG4. 2. 29. Y380 TEST RIG FOR MECHANICS JOINTS. ---------------------------- Some time ago we suggested and it was agreed that we… | ||
| Scan093 | Design and modification of Universal Mechanics Type Joints, noting issues with stiffness. | ||
| View original record | DA. c. Hs. c. Wer. Y4183 BY9/G.13.2.29. UNIVERSAL MECHANICS TYPE JOINTS. ----------------------------- Referring to DAL/M12.2.29. we are not wanting a further design for these pieces, as we have… | ||
| Scan094 | Standardisation of mechanics joints for a 20 HP car to improve transmission. | ||
| View original record | RR 78B REVISED (10H) (D.C. 777-29-2-28) M`Y` C.L`TD` 4183 COMPLETED 8-3-29 STANDARDISATION of CHASSIS PARTS. Date 17.12.28 Description of Parts. 20 HP. CAR. MECHANICS JOINTS. Origin. To improve… | ||
| Scan095 | Instruction to change the jointing material for Mechanics Universal Joints from felt to chrome leather. | ||
| View original record | BY/TWD. c. Hs. c. O.O. X.4183 BY3/G.15.4.29. MECHANICS UNIVERSAL JOINTS. ------------------------- Would you kindly instruct the jointing material on the inner ends of the pins to be instructed as… | ||
| Scan096 | Approving the revised Enots fitting from Messrs. Benton & Stone for use on mechanic's joints. | ||
| View original record | To BY. from Hs/Gy. X-4183 Hs/Gyl/LG13.6.29. X4408 We have now examined the revised Enots fitting F.77765 which Messrs. Benton & Stone submitted as being suitable for use on our mechanic's Joints. We… | ||
| Scan097 | Patented 'Areolite' piston design and its effectiveness in reducing piston knock. | ||
| View original record | R.R. 235a (500 T) S.D. 408. 26-4-17.) Bm. 2/156/13. X4190 11th February - 1918. To EH. from BY. BY28/P11218. RE PISTON AND PISTON ENDS. AREOLITE PISTONS. I attach herewith an illustration of a scheme… | ||
| Scan099 | Expressing doubt over a new unlocked gudgeon pin design for aluminium pistons. | ||
| View original record | To B. from BY. c. to EH. c. to Mr. Shelton. A4190 26th. February, 1919. BY1/T26219. RE CHASSIS - PISTONS & GUDGEON PIN. There is a great doubt in my mind that Mr. Royce will stick to the design of… | ||
| Scan100 | Experiments conducted to investigate the cause of piston knocks. | ||
| View original record | To R. from EH. c. to CJ. c. to BN. c. to DE. c. to EP. X 4190a EHL/LG20.9.19. X.3400. X.2748. X.3651. X.3763a X4190 EXPERIMENTS IN CONNECTION WITH PISTON KNOCKS. There are a number of cars on test… | ||
| Scan101 | Cylinder gudgeon pin measurements and engine oiling performance. | ||
| View original record | R.M. 235 a-100 T. (N.F. 376. 16-4-19) G. 2354 Contd. -2- CYLINDERS. | | 1 | 2 | 3 | 4 | 5 | 6 |---:|---:|---:|---:|---:|---:|---:| | Twist on Gudgeon Pin | .007" | O.K. | .002" | .004" | .001" | .002"… | ||
| Scan102 | Piston design experiments to address over-oiling and engine knocking. | ||
| View original record | Contd. -3-3 EHL/LG20.9.19. chassis' with the extra oil on the whole time but in some cases on those cars they have had definite over-oiling sufficient to oil up the plug. X.3651 We are running some… | ||
| Scan103 | Tests on connecting rod deflection under load and analysis of engine piston knocks. | ||
| View original record | -4- EH1/LG20.9.19. LOAD REQUIRED TO DEFLECT RODS. We have measured the load required to deflect a standard connecting rod various amounts. Below are the figures. [Handwritten: indicator reading]… | ||
| Scan104 | Piston design experiments to eliminate knocking sounds. | ||
| View original record | Contd. -5- EH1/LG20.9.19. We found that if we had a piston so that the rubber was on the non-pressure side of the cylinder there was no sign of a knock but if we had the rubber on the pressure side of… | ||
| Scan105 | Piston tap issues and revised running clearances. | ||
| View original record | To By. from Bm. c. to WCr. c. to Hs. c. to Hr. X4190 chassis Bn6/W22919. RE PISTON TAPS AND RUNNING CLEARANCES. Confirming my conversation with you on the above subject. We believe that there is no… | ||
| Scan106 | Piston and cylinder dimensions, limits, and matching to achieve finer clearance limits. | ||
| View original record | - 2 - to the quoted piston dimensions and limits ( this will avoid alteration to the cylinder) so as to overlap limits. At first sight it appears that the limit on the piston could be increased to 1… | ||
| Scan107 | Testing long pistons and the issue of piston knocks. | ||
| View original record | X.4190 To R. from EH. c. to CJ. c. to E. c. to BN. c. to E c. to Da. c. to EP. c. to BY. EH1/LCSO.9.19. X.4190 PISTON KNOCKS. Long Pistons of present design. The first one or two pistons of this type… | ||
| Scan108 | Technical note and drawing detailing a standard piston split on the pressure side to reduce engine knock. | ||
| View original record | -2- Standard Pistons Split on the pressure side. This is a standard piston on which we have sawn in the manner shewn below:- The idea of this piston is to make a piston which will enable us to run… | ||
| Scan109 | Technical discussion on overcoming piston knocks and seizing issues with a new split piston design and the use of oil. | ||
| View original record | Contd. -3- to overcome piston knocks we shall get into seized piston trouble. A number of the pistons do seize up but a still greater number run tight and have to be eased. The pistons which are… | ||
| Scan110 | Experiments to cure piston knock using oil pressure fed to the gudgeon pin and pistons. | ||
| View original record | -4- find, however, that it is necessary to have a pressure of oil conducted to an annular groove on the piston before it is effective. For our experiments we have made use of a connecting rod which… | ||
| Scan111 | Investigation into piston knocks finding excessive clearance in two condemned engines. | ||
| View original record | X4190 En. from EP. c. to EH. EP9/F22.10.19. RE. PISTON KNOCKS. With reference to the two cars, the engines of which were condemned for piston knocks on the 20th. inst., on dismantling, I find that the… | ||
| Scan112 | Benefits of grooving pistons for improved lubrication. | ||
| View original record | EH. from EP. c. to By. c. to Bn. X4190 EP11/F23.10.19. RE. LUBRICATION OF PISTONS. It is certainly a fact that the more oil we can supply to the pistons, some benefit is always obtained as regards… | ||
| Scan113 | Requesting the issue of standard instructions for the fitting of gudgeon pins. | ||
| View original record | X4190 EH. from EP. c. to By c. to Bn. EP12/F23.10.19. RE. FIT OF GUDGEON PINS. Will you please arrange to issue standard instructions with reference to the fitting of gudgeon pins. These I consider… | ||
| Scan114 | Elusive engine knock which is more pronounced when shorting a cylinder. | ||
| View original record | E.H. note & return X4190 EP LE22/W9.12.19. Re. 19LW. (P.N. open trials) Mr. Holgate arrived at Conduit Street yesterday and found that when running this engine light there was a very elusive knock… | ||
| Scan115 | Special tool devised for fitting and dismantling gudgeon pins. | ||
| View original record | X4190 S.X. c. to Sft. c. to EH. EP12/F18.12.19. RE. FITTING & DISMANTLING OF GUDGEON PINS. A special tool has been devised, and is now being used in the test shop, for the above. We have found this… | ||
| Scan116 | The investigation and resolution of a developed piston knock on chassis 1-TW. | ||
| View original record | Hs. from EP. X4190 EP3/F13.2.20. RE. DEVELOPED PISTON KNOCK ON CHASSIS 1-TW. With reference to the above new chassis delivered to London, which has developed a piston knock and which we heard when… | ||
| Scan117 | Confirmation of a telegram discussing engine piston modifications to address rattling issues. | ||
| View original record | X4190 CONFIRMATION OF TELEGRAM. REPLY PAID. ROYCAR DERBY. HIVES RE BJ AND MADDOCKS REPORT OF RATTLES HAS THIS PARTICULAR ENGINE PISTONS WHICH HAVE BEEN TURNED DOWN TO AVOID TIGHTNESS THROUGH CARBON… | ||
| Scan118 | Cause and proposed cure for an 'elusive knock' in an engine, traced to faulty big end bearing assembly and poor gudgeon pin lubrication. | ||
| View original record | R.R. 235 a (100 T.) (S.F. 846. 6-8-19) G. 2460. X737 X4190 Hs. from EP. c. to Bn. c. to By. c. to Da. c. to Ck. EP11/F25.3.20. X.2748. X.3429. RE. ELUSIVE KNOCKS? - X.737 An engine was condemned on… | ||
| Scan119 | 'elusive knocks', sending 'N' Scheme 312 for the creation of a test model. | ||
| View original record | R.R. 235 n (60 T) (S.G 501. 8-1-20) G. 2585. X4190 To HS from DA. DA1/CB30-3-20. RE ELUSIVE KNOCKS. Please receive a print of "N" Scheme 312 for the purpose of making a model, and if you desire, of… | ||
| Scan120 | Testing of different piston pin designs to eliminate engine knock on a 40/50 HP chassis. | ||
| View original record | X 4190 To Da. from E. Copy to CJ. " " Bn. " " Hs. " " EFC. " " By. E1/G18.9.20. X.4190. RE PISTON PINS. - 40/50 H.P. CHASSIS.X.2748 Referring to the question of eliminating the elusive piston pin… | ||
| Scan121 | Elusive gudgeon pin knock, detailing a fix using a spring. | ||
| View original record | To A. from Hs. c.c. to CJ. c.c. to H. c.c. to DE. c.c. to WN. c.c. to BY. c.c. to EF. c.c. to EWB. for R.R.Inc. Handwritten notes: HS, See last page, Filed RE - ELUSIVE GUDGEON PIN KNOCKS. We… | ||
| Scan122 | Mileage tests and experimental fixes for engine knocks using different gudgeon pin designs. | ||
| View original record | Contd. -2- The Drivers' Instruction Car has now completed 7000 miles since these springs were fitted and 19,000 miles since the pistons were fitted. The engine is still satisfactory as regards being… | ||
| Scan123 | Seeking Mr. Royce's agreement on methods to resolve customer complaints, with handwritten notes. | ||
| View original record | Typed: Contd. -3- going to prove a permanent cure. We wish to get Mr. Royce's agreement in cases where customers complain, that we can use one of these methods in order to overcome that complaint.… | ||
| Scan124 | Delaying the forwarding of an apparatus to Springfield until it is passed by the standardisation sheet. | ||
| View original record | R.R. 950 s (20 T)(S.B. 972. 14-4-20) G. 2674 X H 190 GJ(Py)8/DB30.9.20. To Hs. from CJ. c. to EWT Re Elusive Gudgeon Pin Knocks With reference to your Memo. Hs4/LG27.9.20 forwarded with… | ||
| Scan125 | Questioning if reducing the radiator's cooling effect to solve piston knock is causing overheating. | ||
| View original record | x 4190 PN/15/DB8.12.19. From P.H. to B.H. c. to E.B. Whilst the cooling effect of our Radiator is being reduced . with a view of meeting the Piston Knock difficulties - are you satisfied as to what… | ||
| Scan126 | Cablegram from Springfield regarding a fix for elusive engine knocks using expanding lock screw gudgeon pins. | ||
| View original record | X.4190 EP. D/BP/RB/W6.1.21. Below is cablegram received from Springfield, Number one Platford with reference to your telegram 301. America experience with elusive knocks, reason given (?) Derby to… | ||
| Scan127 | Cablegram from Springfield regarding a successful fix for engine knocks using expanding lock screw gudgeon pins. | ||
| View original record | EP. H.S./9.1.21 (crossed out) X.4190 D/BP/RB/W6.1.21. Below is cablegram received from Springfield. Number one Platford with reference to your telegram 301. America experience with elusive knocks,… | ||
| Scan128 | Ongoing issue of 'elusive knocks' in service cars and proposing a solution involving redesigned gudgeon pins. | ||
| View original record | BHW (for Exp. Dept.) c. to Sy. c. to E.H. c. to EPC. X 4190 A.T. EP2/F7.1.21. X 4190 RE. ELUSIVE KNOCKS. We still continue to receive complaints of the above developing on cars in service, and this… | ||
| Scan129 | The standardisation of gudgeon pins with an expanding lock screw. | ||
| View original record | X.4190 X.4235 To EFC/AT. from HS/TMW. N. HS/TMW5/LG10.1.21. X.4190 RE. GUDGEON PINS WITH EXPANDING LOCK SCREW. We wish to issue standardisation sheets for the above. Please attached the following… | ||
| Scan130 | Ongoing complaints of gudgeon pin knocks and a proposed fix involving new pins with a taper fitting part. | ||
| View original record | Hs X4190 RECEIVED 4 FEB 1921 4.2.21. A.T. By. from E. c. to Hs. c. to Dr. c. to E. RE. GUDGEON PIN KNOCKS (ELUSIVE KNOCKS). Further to our EP2/F7.1.21, we are still continuing to receive complaints of… | ||
| Scan131 | Requesting approval from Mr. Royce to fit modified gudgeon pins to resolve customer complaints about engine knocks. | ||
| View original record | 4190 To R. from Hs. c. to CJ. c. to Bn. c. to E. c. to Da. c. to EP. HS3/LG3.2.21. X.4190. GUDGEON PIN KNOCKS. Mr. Platford is frequently bringing to our notice cases of Cars developing Gudgeon Pin… | ||
| Scan132 | Modification to a scheme for addressing gudgeon pin knocks. | ||
| View original record | X4190 To Hs. from R. c. to CJ. c. to Da. c. to EP. c. to EFC. R1/G11.2.21. X.4190. RE GUDGEON PIN KNOCKS. (HS3/LG3.2.21). I agree, although I am not quite satisfied that this is quite thorough enough.… | ||
| Scan133 | Confirming components for testing gudgeon pin knocks will be ready in two weeks. | ||
| View original record | R.R. Edtn (100 T) S.H.798. 10-12-20) G. 2948 X 4190 To R. from Hs. c. to CJ. hs6/LG24.2.21. X.4190 GUDGEON PIN KNOCKS. X.737 The Connecting Rods, Pistons and Gudgeon Pins for the scheme in which the… | ||
| Scan134 | Scheme for curing piston knocks in post-war chassis. | ||
| View original record | To Wor. from CJ. CJ9/H24.2.21. Technical, Piston Knocks in Post-war Chassis. N. write us under date of 23rd. inst. as follows:- "We think it is not quite appreciated by the Sales and Inspection… | ||
| Scan135 | Readiness for testing of connecting rods, pistons, and gudgeon pins. | ||
| View original record | S.H. Bales (100. P.) (S.H. 798. 10-12-20) G. 2948 X.4190 COPY To R. from Hs. c. to CJ. Hs6/LG24.2.21. X.3429 GUDGEON PIN KNOCKS. X.4190 X.727 The Connecting Rods, Pistons and Gudgeon Pins for the… | ||
| Scan136 | Method adopted to overcome piston knocks on post-war cars. | ||
| View original record | W.R. 286a (100 T) (S.H. 798, 10-12-20) G. 2347 X.4190 To Wor. from Hs. Hs2/LG25. 2. 21. X4190 PISTON KNOCKS ON POST-WAR CARS. With reference to the attached report from Cricklewood. The method they… | ||
| Scan137 | Fit of the gudgeon pin to address an 'elusive knock' in the piston. | ||
| View original record | R.R. 235. (500 H) (S.B. 80. 12-10-15) G. 1278 Hs. from BY. x 4190 RECEIVED Hs MAR 23 1921 BY4-P23.3.21. CHASSIS - PISTONS. RE ELUSIVE KNOCK. x4190. (1) EP. is putting the fit of the Gudgeon Pin in the… | ||
| Scan138 | Inquiry into cases of gudgeon pin knocks developing with a modified, screw-expandable pin design. | ||
| View original record | X.4190 To EP. from Hs. c. to EY. Hs6/LG5.4.21. X 4190 GUDGEON PIN KNOCKS. We should like to know from Mr. Platford whether he has had any cases of gudgeon pin knocks developing when we have fitted the… | ||
| Scan139 | Replying to an inquiry about Gudgeon Pin knocks, detailing trials and a specific test case. | ||
| View original record | X.4190. F.R. EP1/H6.4.21. Hs. from EP. X4190 RE. GUDGEON PIN KNOCKS. Replying to your Hs6/LG5.4.21, we have not yet had any case of Gudgeon Pin Knocks developed on cars on to which the modified type… | ||
| Scan140 | Distributing a standardisation sheet for Gudgeon Pins with locking screws for review. | ||
| View original record | X4190 To EY. from Ha/LG. c. to Dn. c. to EH. c. to EP. c. to PN. c. to BWI. for R.R.Inc. Ha/LG.18.4.21. X.4190 - Gudgeon Pins with locking screws [text struck through: which secure the end] Please… | ||
| Scan141 | Requesting costs for a standardisation sheet for gudgeon pins with locking screws. | ||
| View original record | X4190 To D/Rd. from HS/LG. HS/LG18.4.21. X.4190 - Gudgeon pins with locking screws which expand the end. Please find attached two copies of standardisation sheet for the above. Will you kindly fill in… | ||
| Scan142 | Requesting comments on a standardisation sheet for gudgeon pins with expanding locking screws. | ||
| View original record | X4190 To Wor. from Hs. Hs/LG20.4.21. X.4190 - GUDGEON PINS WITH LOCKING SCREWS WHICH EXPAND THE END. Please find attached copy of standardisation sheet for the above. Will you kindly remark upon, sign… | ||
| Scan143 | Standardisation sheet for gudgeon pins with locking screws. | ||
| View original record | To R. from Hs. c. to CJ. and BJ. X 4190 Hs/LG21.4.21. X.4190 - Gudgeon pins with locking screws which expand the end. Please receive herewith a copy of standardisation sheet for the above. Will you… | ||
| Scan144 | Distributing a standardisation sheet for Gudgeon Pins with expanding locking screws. | ||
| View original record | To R. from HS/LG. c. to CJ. and BJ. c. to WDX. c. to BN. c. to Ja. c. to EY. c. to EP. c. to PN. c. to EWT. for R.R.Inc. X4190 HS/LG25.4.21. X.4190 - Gudgeon Pins with locking screws which expand the… | ||
| Scan145 | Note on the standardisation of an experiment on gudgeon pins with locking screws which expand the end. | ||
| View original record | Ws. from Hs/LG XH190 Hs/LG25.4.21. X.4190 - Gudgeon Pins with locking screws which expand the end Drawing No. 20194/5/6 Part List No. E.19437. Please note, the above experiment is now going through… | ||
| Scan146 | Standardisation of gudgeon pins with locking screws which expand the ends to avoid knocking. | ||
| View original record | R R 755 (S H) S H 268, 10-9-20) G 2584 COPY COMPLETED 25.4.21. STANDARDISATION of CHASSIS PARTS. Description of Parts. Gudgeon pins with locking screws which expand the ends. Origin. To avoid gudgeon… | ||
| Scan147 | The performance of new type pistons and expanding gudgeon pins in chassis 48-TW after 4,000 miles. | ||
| View original record | X4190 Hs. from EP. EP17/F27.4.21. A.T. RE. NEW TYPE PISTONS AND EXPANDING GUDGEON PIN. X4190 Bt reports on his chassis 48-TW as follows :- "48-TW has run 4,000 miles since the new pistons "were fitted… | ||
| Scan148 | Extract discussing piston knocks on the 40/50 chassis, comparing 4-ringed and 6-ringed pistons. | ||
| View original record | X.4190 Extract from Hs2/LG26.5.21. X.3614 SPRINGFIELD COMPLAINTS ON 40/50 CHASSIS. X.2565 X.4190 - Piston Knocks. We agree that the original 4-ringed pistons are likely to develop knocks, but so far… | ||
| Scan149 | Forwarding an issue regarding chassis pistons to the Experimental Department, suggesting a clearance increase for the gudgeon pin locking screw. | ||
| View original record | X4190 Hs. from BY. c. to U.S.A. Dept. BY20/P25.6.21. X.2748 CHASSIS - PISTONS X.4190 X.3666 We received a memo from OY. ref. OY10/G24.3.21 which we attach herewith, as it appears to us to be a matter… | ||
| Scan150 | Letter discussing 'constant clearance' aluminium pistons proposed by Aluminium Manufacturers, Inc. for testing. | ||
| View original record | Mr. Nadin Mr. Bagnall. Mr. Hulley Mr. Southern. OY10/G24.3.21 March 24th. 1921. Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd. London, England. Attentoon Mr. Royce and Works Committee. Dear… | ||
| Scan151 | Report analysing piston skirt design, focusing on issues of thermal expansion, clearance, and gudgeon pin distortion. | ||
| View original record | contd. -2- will have temperatures from 200° to 250°F. The expansion of the skirt due to its temperature coupled with the contraction in the large diameter of the skirt due to the expansion of the… | ||
| Scan152 | Correspondence regarding piston cramping, slack, and slap issues, proposing an increase in the clearance hole diameter. | ||
| View original record | contd. -3- Although we have not been able to thoroughly investigate this matter as yet, we believe that this cramping of the piston on the small diameter may account for some of the collapsing of… | ||
| Scan153 | Response to a suggested method for preventing piston knock, explaining the function of the split aluminium piston. | ||
| View original record | X4190 Expl: Dept: Hel/LG3.1.22. E. Richards, Test Dept. 9111. SUGGESTED METHOD FOR PREVENTING PISTON KNOCKS ON R-R 40/50 HP. CAR ENGINE. With reference to the attached suggestion, we are afraid that… | ||
| Scan154 | Suggestion from a Test Department employee to fix piston knock issues on the 40/50 Chassis. | ||
| View original record | Hs. X4190 EP/Thn8/H28.12.22. re. 40/50 Chassis - Piston Knocks. With reference to conversation with you the other day - we send you herewith suggestion made by one of the men in the Test Department,… | ||
| Scan155 | Broken induction pipes, gas leakage, and the suggestion to trial aluminium pistons. | ||
| View original record | To BY. from E. c. to BJ. c. to HS. X4190 E2/M22.11.23. PREWAR PISTONS & PISTON RING CLAPS. X. 834 X. 858 X.1506 X.2748 X4190 In reply to your memo. BY11/P14.11.23., have not been able to put before… | ||
| Scan156 | Requesting an update on the decision for a cure for piston ring knocks in pre-war engines. | ||
| View original record | X4190 H6/TB/23.11.23 S/W. Hs. from H. copy to Hm. Re:- Piston Ring Knocks in Pre-War Engines. With reference to this matter Hm. informed us in a memo of the 17th. inst. that you were going to West… | ||
| Scan157 | Cost and method for resolving issues with pre-war piston and piston ring knocks. | ||
| View original record | X4190 H2/TB/26.11.23 S/W. Hs. from H. copy to Hm. Re:- PRE-WAR PISTONS & PISTON RING KNOCKS. BJ. has handed me a copy of E2/M22.11.23 to By.,and we shall be very glad to hear at an early date what is… | ||
| Scan158 | On piston ring knocks in pre-war engines, recommending new pistons be made of aluminium, not cast-iron. | ||
| View original record | W/S. H. from Hs. X4190 Hs3/LG26.11.23. PISTON RING KNOCKS ON PRE-WAR ENGINES. R. is quite in agreement to using the narrow rings as we are using on the present std. pistons but as new pistons will… | ||
| Scan159 | Requesting an update on the position of aluminium pistons for pre-war cars and when a set will be available for experimental purposes. | ||
| View original record | To Hs. from Hm. X4190 Hm/9/W27.11.23. Re Aluminium Pistons for pre-war Cars. Could you please let me know the position of the above, and when we shall have a set for experimental purposes? Hm. | ||
| Scan160 | Growing problem of 'piston ring clap' in cars and the urgent need for a permanent solution. | ||
| View original record | X4190 To BY. from Hm. To Hs. To Wer. Hm/WW4/W11.12.23. Re Piston Ring Clap. We have a growing list of cars which have developed the piston ring trouble, and Cricklewood also have a similar list. We… | ||
| Scan161 | Piston ring clap, detailing new aluminium pistons for prewar cars with five or six rings. | ||
| View original record | X4190 Man----- Dept. C. Hs. G. Wor. PISTON RING CLAP. The D.O. have now completed the aluminium type Pistons suitable for prewar cars. There are two types of Pistons required to meet the difficulty,… | ||
| Scan162 | Customer dissatisfaction with piston ring slap and proposing solutions for pre-war engines. | ||
| View original record | COPY. RE:- PISTON RING SLAP. Whilst at Derby I made some enquiries regarding this matter. In spite of R's recent ruling, I am afraid we are very far from being able to give our customers satisfaction,… | ||
| Scan163 | Investigating audible 'knocks' on Phantom chassis and engines. | ||
| View original record | R.R. 493 (40 H) (SL 42 12-7-23). J.H. D. Handwritten top right: +4190 EXPERIMENTAL REPORT. COPIES TO: RCJ (circled) BJ. (struck through) WOR. (struck through) By E (struck through) Da. (struck… | ||
| Scan164 | Investigating the causes and symptoms of piston knocks. | ||
| View original record | R.R. 493a (50 B) (D.D. 31. 12-6-25) J.R.D. EXPERIMENTAL REPORT. Expt. No. REF Hs/ACL/LG5.10.25. PISTON KNOCKS. We have been troubled with what appeared to be piston knocks. The symptoms however are… | ||
| Scan165 | The phenomenon of piston knock, explaining its cause related to oil film breakdown and testing alternative piston designs. | ||
| View original record | R.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.B. EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/ACL/LG5.10.25. The knock, though to a much lesser degree, can be produced very simply by moving a piston attached… | ||
| Scan166 | Piston clearance and flexibility to resolve rattling issues. | ||
| View original record | R.R. 493a (50 H) (D.D. 31, 12-6-25) J.H.L. EXPERIMENTAL REPORT. -3- Expl. No. REF.Hs/ACL/LG6.10.25. overcame the trouble. Even with this increased clearance .003 to .004", there was no evidence of… | ||
| Scan167 | Piston troubles found in the 'Phantom' model. | ||
| View original record | R.R. 403 (40 H) (SL 42 12-7-23). J.H., D. +4190 EXPERIMENTAL REPORT. COPIES TO: RCJ BJ WOR By E. Da RB FHS OY Expl. No. K8040 REF. Hs4/LG12.10.25. OBJECT OF TEST. TESTER. Piston troubles on 'Phantom'.… | ||
| Scan168 | Piston knock, theorizing that a flexible skirt is required for silent operation across a range of temperatures. | ||
| View original record | R.R. 493A (50 M) (D.D. 21. 12-25) J.H.U. EXPERIMENTAL REPORT. Expl. No. REF: Hs/ACL/LG101025. PISTON KNOCKS - E.A.C. Continuing our experiments on pistons the results obtained up to the present time… | ||
| Scan169 | Tests conducted on split-skirt pistons. | ||
| View original record | R.R. 498a (So H) (D.D. 31. 12-6-25) J.H.D EXPERIMENTAL REPORT. -2- Expl. No. REF: Hs/ACL/1G101025. gave us quite good results. They are as follows :- Standard pistons with the skirt split on both… | ||
| Scan170 | Modifying a piston skirt to improve flexibility and reduce engine knocking. | ||
| View original record | R.R. 403a (5m HD. D.D. 21. 1-6-24) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF Hs/AIL/LG101025. attempt was made to make the skirt more flexible by cutting away the stiffening rib, which runs… | ||
| Scan171 | Page discussing and comparing different piston designs, including one designed for the Silver Ghost. | ||
| View original record | H.R. 498A (SCHD) (D.D. 21. 179-S J.H.) EXPERIMENTAL REPORT. -4- Expl. No. REF:Hs/ACL/LG10.10.25. during the 24 hours record. We hope later to have more inform- ation regarding these. It will be seen… | ||
| Scan172 | Various piston designs, including composite and split skirt types, to prevent piston skirt bulging. | ||
| View original record | M.R. 493a (50 H) (D.D. 31. 12-6-25) J.H.D. EXPERIMENTAL REPORT. -5- Expl. No. REF Hs/ACL/LG101025. for our experiments and at the same time retain the same desirable characteristics. Another advantage… | ||
| Scan173 | Various proposed solutions for piston knock trouble in the Phantom engine. | ||
| View original record | To Hs. from R. c. to CJ. BY. X4190 R5/M15.10.25. PHANTOM PISTON TROUBLE - KNOCK. X.4190 X.8040 (1) These pistons were O.K. on Silver Ghost and Goshawk, but imperfections are manifest. (2) Make no… | ||
| Scan174 | Modifications to Phantom cylinders to reduce engine knock. | ||
| View original record | Y4190 To BY. from Hs. c. to Wor. E. to MX. c. to EP. Hm3/LG12.3.26. X8050 Y4190 PHANTOM CYLINDERS. Attached is a blue-print of the Phantom cylinders marked to shew the extra thickness on the trunks… | ||
| Scan175 | Endurance test of 'pedestal' pistons for a Phantom engine, investigating failures and piston knock. | ||
| View original record | To R. from Hs/ACL. c. to RG. E. c. to CJ. BJ. c. to DA. BY. c. to Wor. X4490 Hs/ACL1/LG1.4.26. EXPERIMENTS WITH "PEDESTAL" PISTONS FOR PHANTOM & RECENT INVESTIGATION OF "PISTON KNOCKS". X4490 X8040 We… | ||
| Scan176 | Comparison of pedestal pistons versus standard pattern pistons, detailing their characteristics and performance. | ||
| View original record | còntd :- -2- knocks it seems to possess very similar characteristics to the standard pattern. It has been previously pointed out that the knock experienced is of a different nature to that obtained… | ||
| Scan177 | Comparison of pedestal piston efficiency against a standard piston and an analysis of piston knock characteristics. | ||
| View original record | contd :- -3- the average pedestal piston would give a slightly better mechan- ical efficiency than standard. At present we have only one comparison of the mechanical efficiency obtained with the… | ||
| Scan178 | Three experiments conducted to investigate and reduce engine knock. | ||
| View original record | contd :- -4- practically the same for each cylinder. Experiment 1. To explore the influence of the crankcase on the knock a thick rubber washer was placed between the cyl. blocks and the crankcase.… | ||
| Scan179 | Investigation into methods for reducing engine knock by modifying cylinder skirts with steel sleeves or thicker sections. | ||
| View original record | contd :- -5- us that the cylinder block was a contributing factor and it was therefore thought advisable to direct our attention to this as a possible means of eliminating or mitigating the trouble. A… | ||
| Scan180 | Report page detailing tests on cylinder skirt deflection and piston knock, including a diagram. | ||
| View original record | contd :- -6- DIAGRAM 2 were more severe than with the previous block tested but apart from this, operation was silent when listening in the normal way. Consequently this method was accepted as a… | ||
| Scan181 | Analysis of piston knock, its causes related to oil film breakdown and resonance, and experiments with thicker piston skirts. | ||
| View original record | contd :- -7- "The piston ------ preserves a film of oil between it and the bore when in motion but when the direction is changed the film at any particular high spot may momentarily break down but is… | ||
| Scan182 | Piston knocks, noting the issue is reduced by using thicker cylinder skirts. | ||
| View original record | contd :- -8- The gudgeon pin fixing is more satisfactory than standard. The piston can be a good fit when cold and at the same time be quite free under high temperature conditions, due to greater… | ||
| Scan183 | 32-hour test bench run of pedestal pistons, discussing performance, knocking issues, and gudgeon pin fixing. | ||
| View original record | To R. from Hs/ACL. c. to BJ. Wor. c. to RG. E. c. to SY. DA. (Handwritten) V4190 Hs/ACL1/LG30. 8.26. PEDESTAL PISTONS. (Handwritten) X8040 We have completed 32 hrs. running with the latest pedestal… | ||
| Scan184 | Comparison of the weights of standard and pedestal pistons and results of subsequent testing. | ||
| View original record | contd :- -2- should be an advantage. The following is a comparison of the weights of the standard and pedestal pistons :- [TABLE START] Main Header: WEIGHT. Row/Column Headers: | Complete with gudgeon… | ||
| Scan185 | Potential cures for piston knocks, concluding that a new casting is the only satisfactory solution. | ||
| View original record | X4190 To Ps. from Hs/Rm. Hs/Rm6/LG10.9.26. PISTON KNOCKS. With reference to our conversation re. piston knocks. We find that there is no cure which can be applied to existing cars other than those… | ||
| Scan186 | Investigation into the cause of piston knocks, detailing tests on an overoiler and bearing examination. | ||
| View original record | X4190 "Hs" Derby "Rm" Derby PS2/JP.16/9/26 RE PISTON KNOCKS. Your "Hs/RM6/LG10/9/26" to hand, and remarks re above noted. Concerning the "Lorraine", I have written to them for the conditions and… | ||
| Scan187 | Technical memorandum discussing issues with piston knocks and the use of pedestal pistons to reduce them. | ||
| View original record | To R. from Hs/ACL. c. to BJ. Wor. c. to RG. E. c. to DA. BY. c. to OY. Hs/ACL1/LG23. 2. 27. Y4190 PISTON KNOCKS. X8040 Since the adoption of the stiffer cyl. skirts trouble from piston knocks have… | ||
| Scan188 | The investigation and proposed solution for piston knock, involving slotted pistons. | ||
| View original record | contd :- --2-- and the knocks more severe, on a piston which did not 'bed' uniformly and was subject to local high spots. It seems to indicate that the audible knock was resulting from some of these… | ||
| Scan189 | Blueprint for a Phantom piston with an additional sawcut. | ||
| View original record | [ "1.500", "1.175 CTRS.", "SAWCUT .050 WIDE", "4.250 DIA.", "SECTION A.B.", "FOR ALL OTHER DIMENSIONS SEE DRAWING E73376.D.C.", "SCALE 1/1.", "PISTON WITH ADDITIONAL SAWCUT.", "(PHANTOM)", "RDL NO.… | ||
| Scan190 | Proposing a conference to discuss production issues, specifically piston knocks in Phantom engines. | ||
| View original record | Hs. - from Wor. [Strikethrough: EV. " "] [Strikethrough: Mx. " "] X4190. Wor6/M25-2-27. Mx. states he would like to have a talk with you all on the question of producing engines, Phantoms in… | ||
| Scan191 | Modifications to the Phantom cylinder block to reduce distortion and eliminate piston knock. | ||
| View original record | To R. from Hs/ACL. c. to BJ. Wor. c. to RG. E. c. to BY. OY. c. to DA. V4190 Hs/ACL2/LG26. 8. 27. MODIFICATIONS TO REDUCE PHANTOM CYLINDER BLOCK DISTORTION. X.8050 The modification to the Phantom cyl.… | ||