Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Trial of a Tangye jack, finding it unsuitable for use on the rear axle and recommending a Michelin 'Forest' type instead. | ||
| View original record | To ROY/GEA. from Hs/AJL. X4491 Hs/AJL1/LG5.7.28. TANGYE JACK. With reference to the jack left by Mr. Tuck the other day for trial. We have tried this jack and apart from it not meeting our 20 HP.… | ||
| Scan002 | Evaluating a sample wheel jack for 20 HP cars, with criticisms and requirements for a 40/50 car model. | ||
| View original record | To ROY/GEA. from Hs/AJL. [handwritten] 74491 Hs/AJLL/LG4.9.28. WHEEL JACK FOR 20 HP. CARS. -------------------------- [handwritten] [crossed out] X3117 [/crossed out] [handwritten] X4124 In response… | ||
| Scan003 | Specifying jack load capacities and suggesting Tangye's as a superior alternative to the current 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. | ||
| Scan004 | Correspondence with Messrs. Tangyes Limited regarding specifications and dimensional discrepancies for a sample aluminium jack for the 40/50-HP Chassis. | ||
| View original record | 4491 Hs. ROY/GEA2/EB2-11-28. With regard to the sample Jack submitted by Messrs.Tangyes Limited, Birmingham, for our 40-HP. Chassis. We have requested them to prepare another sample on the lines of… | ||
| Scan005 | Requesting an urgent reply regarding sample jacks from Messrs. Tangyes Limited. | ||
| View original record | Hs. 44491 ROY/GEA13/EB12.11.28. RECEIVED 12 NOV We confirm our memo ref: ROY/GEA2/EB2.11.28, regarding sample Jacks ex Messrs.Tangyes Limited, and shall be glad to have your reply thereto as soon as… | ||
| Scan006 | The receipt of two sample Jacks from Tangyes Limited and a stock shortage. | ||
| View original record | x 4491 Hs. ROY/GEA4/EB19.12.28. Messrs.Tangyes Limited, advise that they sent us on the 17th instant, two sample Jacks, (one each for our 40/50-HP and 20-HP. Chassis) They state, in regard to the… | ||
| Scan007 | Faulty Tangye jack for 20 HP cars. | ||
| View original record | To ROY/GEA. from Hs. X4491 c. to Mt. Stores. Hs3/LG20.12.23. TANGYE JACK FOR 20 HP. CARS. The Tange Jack for the 20 HP. cars concerning which we had some conversation yesterday, is not as satisfactory… | ||
| Scan008 | The return of a Tangye Jack to the manufacturer. | ||
| View original record | Y4491 To ROY/GEA, from Hs/AJL. c. to Mt. Stores. Hs/AJL2/LG7.1.24. We are sending into the Stores for return to the makers :- 1 Tangye Jack (40/50 HP.) Will you please issue the necessary instructions… | ||
| Scan009 | Examination report on a sample Tangye Jack for 40/50 HP cars, noting its excessive weight and a minimum height defect. | ||
| View original record | To ROY/GEA. from Hs/ACL. X4491 Hs/ACJL/LG7.1.28. TANGYE JACK FOR 40/50 HP. CARS. We have now had the opportunity of examining the above sample Jack submitted to us last month. As far as workmanship,… | ||
| Scan010 | Letter from Tangyes Limited about the Tangye Jack for the 40/50-HP Chassis. | ||
| View original record | 74497 Hs. ROY/GEA6/EB17.1.29. Tangye Jack for 40/50-HP.Chassis. Referring to your memo ref:- Hs/AJL1/LG.7.1.29. we attach hereto, copy of letter received from Messrs.Tangyes Limited, regarding this… | ||
| Scan011 | Copy of a letter from Tangyes Limited regarding the specifications and testing of a screw jack for a 40/50-HP car. | ||
| View original record | Copy of letter received from:- Messrs.Tangyes Limited., Cornwall Works, BIRMINGHAM. EH/EST. 16th January 1929. Messrs.Rolls-Royce Limited., DERBY. Dear Sirs, Your ref: ROY/GEA7/EB.8.1.29. Referring to… | ||
| Scan012 | Internal memorandum discussing the specification change for the Tangye Jack for the 40/50 HP Chassis. | ||
| View original record | Y4491 To ROY/GEA. from Hs/AJL. Hs/AJL1/LG13.1.29. TANGYE JACK FOR 40/50 HP. CHASSIS. With reference to your Roy/GEA6/EB17.1.29. We agree that the Tangye Jack submitted has a higher maximum safe load… | ||
| Scan013 | Recommendation to adopt a new jack from Tangye for the 20 HP chassis, as the previous supplier, Michelin, has ceased production. | ||
| View original record | 74491 To BY: from Hs/AJL. c. to SG. Wor. c. to CWB. Hs/AJL/LG31.1.29. JACK FOR 20 HP. CHASSIS. 4080 Owing to the fact that the Michelin people have ceased to manufacture jacks, we have found it… | ||
| Scan014 | Feedback and modification suggestions for a Tangye Jack intended for the 20 HP Chassis. | ||
| View original record | [Handwritten top left] HS Are you dealing with this? if so, we would like to know what is being done. [Handwritten top right] Y3XX 4491 [crossed out] BY/Cgh [signature] [Distribution list box] S/W.… | ||
| Scan015 | Feedback and proposed modifications for a Tangye Jack for the 20 HP Chassis. | ||
| View original record | +4491 S/W. RH. (Copy to Mr. Wor.) " " " Hs). " " " Cmr) " " " SE. Cx7/M/6.2.29. Re: Jack for 20 HP. Chassis. We have now had an opportunity of seeing the Tangye Jack which you sent us, and wish to… | ||
| Scan016 | Sales feedback and proposed modifications for a 20 HP Tangye jack. | ||
| View original record | X4491 To ROY/GEA. from Hs/AJL. Hs/AJL2/LG7.2.29. TANGYE JACK FOR 20 HP. We have now received Sales criticism on the sample Jack submitted to them. We should be glad if you would communicate with… | ||
| Scan017 | Design preferences for a jack's joint and handle, prioritizing production due to urgency. | ||
| View original record | contd :- -2- (3) We should prefer a joint similar to the Michelin - please submit a design. (4) Will Tangy's please also submit a sample of a brace type handle. We rather prefer a 'T' type owing to… | ||
| Scan018 | Inquiry regarding the introduction date of a modified Tangye Jack for the 20 HP Chassis. | ||
| View original record | RS Will you please deal with this URGENT. PER BAG. X 4491 S/W. BY. ✓ (Copy to Wor) HS. SM. CWB. For information. Cx2/M/14.2.1929. Re: Tangye Jack for 20 HP. Chassis. With reference to Cx7/M/6.2.29.… | ||
| Scan019 | Query regarding the introduction date for the Tangye Jack for the 20 HP Chassis. | ||
| View original record | URGENT. PER BAG. S/W. BY. (Copy to Wor) Hs err GWP For information. X44/91 Cx2/M/14.2.1929. Re: Tangye Jack for 20 HP. Chassis. With reference to Cx7/M/6.2.29. concerning the above, and suggested… | ||
| Scan020 | Letter forwarding a quotation from Messrs. Tangyes for a wheel jack for the 20-HP chassis. | ||
| View original record | Hs. We give you below copy of letter received from Messrs. Tangyes regarding the Wheel Jack for 20-HP Chassis, and shall be glad to have your comments thereon as soon as possible. Will you also kindly… | ||
| Scan021 | The design specifications for a jack handle, comparing various options and making a recommendation for an order. | ||
| View original record | ROY/GEA12/EB18. 2. 29. - 2 - "2'-1" long, weighing 2 lb. and the Dunlop "Super D.L." "handle is 3'-5", weighing about 2 lb. 10 oz. "We note your views on the question of using a tubing "handle, but as… | ||
| Scan022 | Requesting the return of a sample Tangye jack for a 20 HP car for demonstration purposes. | ||
| View original record | W/S. Cx. from Hs. J4491 Hs11/LG21.2.29. JACK FOR 20 HP. CAR. We should be glad if you would return the sample Tangye jack to us which we sent for your criticism. It is the only one of its type at… | ||
| Scan023 | Return of a sample Tangye jack for a 20 HP car. | ||
| View original record | Mr Lindsey Y4491 Bs7/KW25.2.29. S/W. Re- Jack for 20 h.p. Car. Hs11/LG21229. The sample Tangye jack was returned to you on the 8th instant. It was attached to the Mail Bag which was sent by train on… | ||
| Scan024 | Standardisation document for replacing the Michelin jack with a British-made 'Tangye' jack for the 20 HP model. | ||
| View original record | RR 788 REVISED (10H) (D.C. 777-29-2-28) Mᶜ C. Lᵀᴰ X 4491 COMPLETED 24.4.29 STANDARDISATION of CHASSIS PARTS. Date 20.2.29 X No. 4491 Drawing No. Part List Description of Parts. 'TANGYE' JACK FOR 20… | ||
| Scan025 | The sourcing of a new jack for the 20 HP chassis from Tangye. | ||
| View original record | COPY. BY. from Hs/AJL. c. to SG. c. to WOr. c. to CWB. Hs/AJL1/LG31.1.29. JACK FOR 20 HP. CHASSIS. Owing to the fact that the Michelin people have ceased to manufacture jacks, we have found it… | ||
| Scan026 | Comparison between a new Tangye jack and the existing Dunlop jack for the 40/50 HP chassis. | ||
| View original record | To BY. from HS/AJL. c. to Wor. Sg. X4491 Hs/AJL1/LGS.5.29. JACK FOR 40/50 HP. CHASSIS. X4124 Some time ago we asked Messrs. Tangye to submit to us a sample jack suitable for our 40/50 HP. chassis - we… | ||
| Scan027 | Suggested improvements to a car jack and proposing its standardisation to replace the Dunlop jack. | ||
| 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)… | ||
| Scan028 | Agreeing to adopt the Tangye Jack for the 40/50 HP chassis to replace the Dunlop jack. | ||
| View original record | To EY [struck through] from Sg. Copy to Hs/AJL. Jack for 40/50 HP Chassis. Sgl/E23.5.29 Cx [struck through] Replying to BY7/G15.5.29 I have made enquiries in regard to the Tangye Jack for the 40/50 HP… | ||
| Scan029 | Inquiry regarding the standardisation of the Tangye jack for the 40/50 HP chassis. | ||
| View original record | X4491 Bs6/KW4.6.29. S/W. BY. 40/50 h.p. chassis-Tangye Jacks. For the information of the Sales Conference will you kindly let me know whether it has now been definitely decided to standardise the… | ||
| Scan030 | Supply and cost of jacks for the 40/50 HP Chassis from supplier Tangye. | ||
| View original record | W/S. COPY to Hs/Mr Lidsey. X4491 Cx/Hdy. ROY3/HP31.7.29. Cx/Hdy2/HH. 30.7.29. Messrs. Tangye advise they are not yet in a position to put forward any scheme for the supply of Jacks suitable for 40/50… | ||
| Scan031 | Inability of Tangye to supply a suitable jack, leading to the continued use of the Dunlop jack. | ||
| View original record | W/S. X4491 X4491. X4124. To Cx/Hdy from ROY. c. to Hs/Mr. Lidsey ROY5/MG23.8.29 re TANGYE JACKS Replying to Cx/Hdy7/CP21.8.29, kindly note Messrs. Tangye are not yet in a position to put forward any… | ||
| Scan032 | The poor quality of production Tangye Jacks for the 20 HP chassis compared to the approved sample. | ||
| View original record | X4491 Roy. Hs. Hy. BY/Mtn20/N.3.10.29. Re: 20 HP. - Tangye Jacks. The Experimental Dept. have reported to us that the Tangye Jacks being supplied for production 20 h.p. chassis are not in accordance… | ||
| Scan033 | History of sourcing and subsequent quality issues with wheel jacks for the 20 HP cars. | ||
| View original record | X4491 To By. from Hs/AJL. c. Hor. c. Roy. Hs/AJL/ADT.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… | ||
| Scan034 | Recommendation to cease ordering Tangye jacks and instead use a modified, less expensive Dunlop jack for 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… | ||
| Scan035 | Sample of a modified Tangye Jack, querying its cadmium plating. | ||
| View original record | X4491 TO BY. from ROY. c. to HY. (struck through) c. to Hs. TANGYE JACK Additional to the Print Messrs. Tangye sent us last week of the modified Jack they propose supplying, which was passed to you,… | ||
| Scan036 | Sample Tangye Jack with a cadmium plated tube. | ||
| View original record | X4491. To BY. from ROY. c. to HY. c. to Hs. Tangye Jack Messrs. Tangye advise that the sample Jack submitted (Vide ROY4/MG30.10.29) has a cadmium plated tube, and ask if we are now in a position to… | ||
| Scan037 | Questioning the delivery of a second sample Tangye Jack. | ||
| View original record | X4491. To BY. from ROY. c. to HY [struck through] c. to Hs. Tangye Jacks We received on Saturday a second Tangye Jack, which they state has a cadmium plated tube. I am not quite sure why they have… | ||
| Scan038 | Sample Jack design, materials, and testing, received from Tangyes. | ||
| View original record | AJL X4491. To ~~BY.~~ from ROY c. to Hs. ROY1/MG20.9.30 RECEIVED SEP 02 1930 HS Tangyes have now completed a sample Jack to the revised design you suggested. I have asked Stores to pass it to you, and… | ||
| Scan039 | Testing a jack made by Tangyes, including conditions and material requirements. | ||
| View original record | RECEIVED SEP 22 1930 A.J.L. ROY. c. Hs. x4491. BY1/G. 22.9.30. JACK MADE BY TANGYES. --------------------- Referring to ROY1/MG.20.9.30. as soon as I have had an opportunity of examining the jack we… | ||
| Scan040 | Test report and commentary on a car jack manufactured by Tangyes. | ||
| View original record | By. from Hs/AJL. E. Roy. X4491 HS/AJL1/AD9.10.30. JACK MADE BY TANGYES. We are returning to you the jack for your examination and comments. We have tested the jack by lifting up one side of a P.II.… | ||
| Scan041 | Dispatch of two Tangye Jacks for testing and design checking. | ||
| View original record | 84491 Hs/Mr Lidsey. BY3/N.12.2.31. c. Hs. Re: Tangye Jacks. We are sending you herewith the two jacks referred to in Roy5/MG.9.2.31 for you to carry out the usual tests, and then dismantle for… | ||
| Scan042 | Test report on a Tangye double lift screw jack, detailing dimensions, weight, and test results. | ||
| View original record | To By. From Hs/Lid. c. to Roy. x4491. Hs/Lid.8/KT.4.3.31. TANGYE JACKS. We have now completed tests on the two Tangye Jacks submitted to us under cover of ROY5/MG9.2.31, and BY3/N12.2.31, and are… | ||
| Scan043 | Assessment of a large screw jack and a hydraulic jack, finding the hydraulic jack unsuitable due to its dimensions and oil leaks. | ||
| View original record | - 2x - Hs/Lid.8/KT.4.3.31.cont Large Screw (1st lift) Appears O.K. The jack certainly is not as easy to use as the average present standard Dunlop jack; we see no reason why we should change.… | ||
| Scan044 | Blueprint for two half-size model crankshafts for experimental comparison. | ||
| View original record | To RHC. from E/JNR. c. Hs. X11499 E/JNR.3/HP.10.10.33. re Crankshafts. We send you herewith blueprint: LeC.3660 shewing two model half size crankshafts which are required for experimental use, to… | ||
| Scan045 | Internal memorandum discussing the concept of 100% balance in four-bearing versus seven-bearing crankshafts. | ||
| View original record | X4499 To E: from Hs/Gry: Hs/Gry.14/KT.21.11.33. X634 FOUR BEARING CRANKSHAFTS. There seems to have been some misunderstanding over what is meant by 100% balance of a crankshaft. We have always… | ||
| Scan046 | Data table listing the balance and out-of-balance measurements for centre and end units. | ||
| View original record | -2- Hs/Gry/14/KT.21.11.33. Lec.3660. Expl. (1) Out of balance of centre unit. 16.6 lbs.in2 9.96 (2) Out of balance of end unit in direction of Nos. 3 & 4 pins. 14.4 10. (3) Balance of centre unit.… | ||
| Scan047 | Blueprint of a multi-throw crankshaft with various dimensional annotations. | ||
| View original record | ROLLS-ROYCE, LTD. PRINT ROOM NOV 21 1933 DERBY. VIEW FROM REAR END ALL JOURNALS 2.500 DIA BORE OF PINS 1.200 DIA ALL PINS 2.000 DIA 4.20" F.S. 3.60" F.S. 3x4 1x6 2x5 4.000 .500 1.700 2.800 1.500 .500… | ||
| Scan048 | The torque reversal test performed on model cranks DEB.2070 A & B. | ||
| View original record | To E. From Hs/Bl. c. to By. c. to Rg. X 4499 Hs/Bl.2/KW.21.2.34. MODEL CRANKS - DEB.2070 A. & B. TORQUE REVERSAL TEST. The only difference between models "A" & "B" was that the crank pin bore in "B"… | ||
| Scan049 | Joggling test results for Model Cranks, design 2070 A & B, including a diagram of a typical fracture. | ||
| View original record | MODEL CRANKS - DES 2070 A & B JOGGLING TEST. STROKE 6" LEVEL B.S' RADIUS. D64B FLYWHEEL - MOMENT OF INERTIA INCREASED BY 30%. CRANK INDEX | TIME RUN | TOTAL REVERSALS | AVERAGE RPM | REMARKS. A1 |… | ||
| Scan050 | Letter from a supplier detailing the testing procedures for four 6-volt starter batteries. | ||
| View original record | X4502 The EDISON SWAN Electric Co.Ltd. 23, Goldsmith Street, NOTTINGHAM. Telephone NOTTINGHAM 42511 Telegrams EDISWAN NOTTINGHAM Codes WESTERN UNION A. B. C. (5th Edition) EDISWAN EVERYTHING… | ||
| Scan051 | Routine treatment report for a car lighting and starting battery, detailing charge and discharge cycles. | ||
| View original record | X. 4502 ROUTINE TREATMENT OF CAR LIGHTING & STARTING BATTERIES. Date:- 3-6-29 Battery under treatment:- Ediswan XSB 557-1-2 (221) 6-volt units Rated capacity :- 90 ampere-hours. Received charged or… | ||
| Scan052 | Test report detailing the second charge cycle data and readings for a 6-cell battery. | ||
| View original record | -2- Date. 15-6-29 to 19-6-29 (6) Second charge :- Charge given :- 7 amperes for 20 hrs = 140 ampere hours (7) | Cell No. | 1 | 2 | 3 | 4 | 5 | 6 |… | ||
| Scan053 | Log sheet detailing battery cell performance, charge data, and temperature readings. | ||
| View original record | -3- Contd. Date. (12) Cell No. 1 2 3 4 5 6 Density. 1100 1100 1100 1100 1100 1100 Voltage. 1.75 1.75 1.75 1.75 1.75 1.75 +ve to cadmium. 1.95 1.95 1.95 1.95 1.95 1.95 -ve to cadmium. .2 .2 .2 .2 .2 .2… | ||
| Scan054 | Battery charging and performance test log with cell-by-cell readings. | ||
| View original record | -4- Contd. Date. (16) Fourth charge:- Charge given:- 7 amperes for 12 hours = 84 ampere hours. Cell No. | 1 | 2 | 3 | 4 | 5 | 6 Density. | 1280 | 1280 | 1280 | 1280 | 1280 | 1280 Voltage. | 2.7 | 2.7… | ||
| Scan055 | Missing correspondence concerning Ediswan batteries, referencing a letter about an arrangement to send four starter batteries. | ||
| View original record | X4502 EFC3/AD5.629. X.4502. EDISWAN BATTERIES There does not seem to be any correspondence re the above, either in the file or for filing. In their letter ref: WN/WK25.5.29 (in my possession) it… | ||
| Scan056 | Test report on an Ediswan Battery (221) after 10 months of bench life testing. | ||
| View original record | E.F.B. J.D. 68. X. 4502 3-4-30 X4502 Tests on Ediswan Battery (221) This battery is now 10 months old & has been on our bench life test during that time. The bench tests shew some improvement on the… | ||
| Scan057 | Requesting the return of a dry and unused Ediswan battery to the Edison Swan Electric Co. | ||
| View original record | X4502. D/BP. from EFC. EFC5/AD22.5.30. X.4502. EDISWAN BATTERY. Will you please arrange for the return to Messrs. Edison Swan Electric Co. in accordance with arrangements today made with their… | ||
| Scan058 | Experimental record sheet for an Ediswan XSB SS 7-3-4 battery. | ||
| View original record | EXPERIMENTAL RECORD SHEET [X crossed out]4502 Battery Ediswan XSB SS 7-3-4 (3, 6 volt units) (222) Table Headers: Date on. Location. Date off. REMARKS. Miles reading Start. Miles reading finish. Miles… | ||
| Scan059 | Experimental record sheet for an Ediswan XSB 557-1-2 battery. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS Ex No 4502 Battery Ediswan XSB 557-1-2 (2, 6volt units) (221) Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles… | ||
| Scan060 | Battery discharge test chart for an Ediswan XSB 557-1-2 battery. | ||
| View original record | 20-6-29 221 Ediswan XSB 557-1-2 90ah 92ces. Average amperes 6.44 Hours -10.75 Ampere hours -69.1 75/ 1.80 v. | ||
| Scan061 | Chart recording of an electrical test measuring ampere-hour performance over time. | ||
| View original record | 28-6-29 221 Ediswan XSB 557-1-2 90ah 92ah Average amperes = 6.43 Hours = 11.0 Ampere hours = 70.7 .769 1.80w TRADE MARK 'RECORD' | ||
| Scan062 | Performance test chart for Ediswan 6-volt units. | ||
| View original record | 2-4-30 221 Ediswan XSB557-1-2 (2, 6 volt units) 92 lbs 90 a.h. Average amperes = 6.40 Hours = 12.1 Ampere hours = 77.5 .841 1.80w | ||
| Scan063 | Letter to The Edison Swan Electric Co. Ltd. regarding specifications for 20/25 and 40/50 HP chassis batteries. | ||
| View original record | X4502. Hs/HEW2/AD. June 5th, 1931. The Edison Swan Electric Co.Ltd. 23, Goldsmith St. Nottingham. Dear Sirs, With reference to the conversation the undersigned had with your technical representatives… | ||
| Scan064 | Letter from The Edison Swan Electric Company acknowledging receipt of a letter regarding specifications for two batteries. | ||
| View original record | HEN X4502. BY APPOINTMENT THE EDISON SWAN ELECTRIC COMPANY LIMITED INCORPORATING THE WIRING SUPPLIES, LIGHTING ENGINEERING AND RADIO BUSINESS OF THE BRITISH THOMSON-HOUSTON CO., LTD. AND METRO-VICK… | ||
| Scan065 | Information and a trial of a car fitted with a Salerni Coupling. | ||
| View original record | To DA. from Hs. V4570 Hs5/LG3.4.29. SALERNI COUPLING. With reference to DA2/M27.3.29. We are anxious to try a car fitted with this device. Could you please let us know the address of the people who… | ||
| Scan066 | Potential testing and anticipated performance of a Salerni coupling. | ||
| View original record | Hs. from DA. 44510. X.4500 DA2/M6.4.29. SALERNI COUPLING. Replying to Hs5/LG3.4.29., the address is The Salerni Coupling Ltd., 3, London Wall Buildings, London E.C.2. We have asked them if they can… | ||
| Scan067 | From 'DA' to 'HS' requesting a demonstration of the Salerni coupling. | ||
| View original record | HS. from DA. SALERNI COUPLING. XH510. DA2/M27.3.29. With reference to the proposed test of the Salerni coupling it would be of much interest to us if we could try this too. We presume they are… | ||
| Scan068 | Outlining an idea for an easy-change device for gearboxes. | ||
| View original record | 8523 X4510 DA/HDY. EV.) FROM R. E. Hs.) (At Le Canadel.) R2/M14.4.29 Rec'd at WW. 18.4.29. C. to Sg. Wor. Mr. Claremont. X 7310 X 310 GEARBOXES - EASY CHANGE DEVICES. When it is desired to change the… | ||
| Scan069 | The performance and qualifications of a Salerni coupling fitted to a 7 HP Fiat. | ||
| View original record | X.4510 R. from DA. c. to SG. Hs. E. DAL/M17.4.29. SALERNI COUPLING. Mr. Hardy and I tried a 7 HP. Fiat fitted with a Salerni coupling. As far as we could judge in the short run we had it appeared to… | ||
| Scan070 | Continued document discussing the drawback of a heavy clutch pedal. | ||
| View original record | contd :- -2- The last three drawbacks gave the impression of a rather heavy clutch pedal, and though in the case of this small car it offered no real difficulty, it would not be so in the case of a… | ||
| Scan071 | Urgent experiment with a Salerni coupling for the 14-EX model. | ||
| View original record | BY from DA. Copy to Hs. Sg. X4510. DA2/M30.5.29 EXPERIMENT WITH SALERNI COUPLING. Herewith we send N. scheme 2899, a drawing shewing the space available, and the pieces necessary to incorporate a… | ||
| Scan072 | 'The Gearbox Problem' and potential solutions for creating a quieter and more easily changed gear. | ||
| View original record | X4510. HS. CY. Hy. DA. Mr.Claremont. } FROM R. R4/M3.6.29. c. Lord Wargrave LHS. Sg. Wor. Mr. Fuller. PN. E. THE GEARBOX PROBLEM. X7310 X4510 X5310 X523 For a considerable time, we, and most others,… | ||
| Scan073 | Operational issues of the Salerni Coupling and proposing design modifications. | ||
| View original record | -2- contd. Salerni Coupling. This is one of the cleverest attempts at making an easy change. Personally I like the coupling in its simplest form, but I do not like the various devices to overcome its… | ||
| Scan074 | Potential gearbox and clutch designs, including the Salerni coupling. | ||
| View original record | -3- contd. In conjunction with this scheme the 3rd. speed would probably be single or double helical gears, and the engagement be made by a jaw clutch. As far as we can see this combination would make… | ||
| Scan075 | Modifications to the brake linkage and servo for the Salerni coupling on EAC.7. | ||
| View original record | Ey. from DA. C. to Sg. HS. X4510 DAL/M6.6.29. SALERNI COUPLING ON EAC.7. X4510 Herewith we send M. scheme 2903., a further drawing in connection with the above coupling which has been made to shew how… | ||
| Scan076 | New scheme for a silent 3rd speed gearbox using a single and double helical arrangement. | ||
| View original record | X4510 By. from DA. C. to Sg. HS. DA2/M12.6.29. X8310 X7310 X4510 GEARBOX WITH SILENT 3rd SPEED. We send herewith N. scheme 2907. shewing the arrangement of a single and double helical 3rd. speed in a… | ||
| Scan077 | Correction to a scheme for an experimental Salerni coupling on an EAC.7. gearbox. | ||
| View original record | X4510 Ry. from DA. c. to Sg. Hs. DAL/M8.6.29. EXPERIMENTAL SALERNI COUPLING AT THE BACK OF EAC.7. GEARBOX. X4510 X7310 Herewith we send N. scheme 2906., shewing a correction to N. scheme 2899., as… | ||
| Scan078 | Comparing an Isotta Fraschini to a Rolls Royce car and discussing a coincidental epicyclic gearbox design. | ||
| View original record | E. Da. ) FROM R HS. ) (At Le Canadel) c. Sg. Wor. Bv. c. Mr.Claremont. X4510 R1/M.1.30. CAR AND AERO WORK CHANGE SPEED GEAR X.4609 X.523 X.4510 Mr.Salerni visited Le Canadel yesterday. He came on an… | ||
| Scan079 | Typed letter discussing Mr. Salerni's visits, a potential patent conflict over gear arrangement, and a proposed working agreement. | ||
| View original record | -2- I want you to learn what you can from Mr. Salerni's visits, (he asked to be allowed to visit WW. in my absence) but naturally reserve for RR. any points you see that can be altered, until such… | ||
| Scan080 | From 'R.' regarding the development of a silent, easy-to-change 4-speed gearbox using a Salerni coupling. | ||
| View original record | X4510 Da/Hdy. ) FROM R. E. Hs. ) (At Le Canadel) R8/M/13.1.30. c. Sg. Wor. By. CAR CHANGE SPEED GEAR X.523 X.7310 X.5310. X.4510 I have asked Mr.Hardy to see if he can come here for one week clear,… | ||
| Scan081 | Salerni coupling, discussing the control rod, load capacity, and proposed modifications. | ||
| View original record | X4510. By. from Da. c. Bs. Da9/G13.3.30. SALERNI COUPLING. Herewith is N.Sch.3065 giving particulars of the control rod between the clutch pedal and the coupling lever. We have reckoned on a maximum… | ||
| Scan082 | Progress on the Salerni coupling for the EAC.7 gearbox. | ||
| View original record | X4510. By. } Hs. } FROM Da. __________ Da2/M7.5.30. __________ 4510. X. 5410 X. 7310 X. 523 GEARBOXES. __________ We hope you have been able to get on with the details of the Salerni coupling applied… | ||
| Scan083 | The progress of an experiment fitting a Salerni coupling to the 14-EX chassis for gearbox development. | ||
| View original record | X4510 By. from Da. c. Hs. Dal/M23.8.30. SALERNI COUPLING We hope that the experiment in connection with fitting a Salerni coupling to 14-EX. is progressing as rapidly as possible. Information as to… | ||
| Scan084 | Company's present position on various change-gear technologies and their potential adoption. | ||
| View original record | SG. FROM R. C. to WOR. BY. C. to HS. PN. C. to C. EP. C. to DA. E. CHANGE GEAR - PRESENT POSITION. R4510. R1/M3.11.30. X.523. X.7310. X.5310. X.4510. X.2061. Although we have given this subject much… | ||
| Scan085 | Various gearbox designs, including overspeed, Panhard, freewheel, and epicyclic systems. | ||
| View original record | (2) applied to a 3 speed box, which is not ideal for present driving conditions which ask for a fairly low top and high third. This gear change is not available to us and I should not recommend its… | ||
| Scan086 | Progress report on the design of a new 3-speed gearbox with semi-silent, pre-selection easy change features. | ||
| View original record | (3) the design work this month. In the meantime Derby have many parts that they can proceed with. We finally came to the conclusion that to overcome certain difficulties of control and operation a 3… | ||
| Scan087 | Difficulties experienced while testing the Salerni Coupling. | ||
| View original record | X4510. To R. From Hs/Rn. c. to Sg. Wor. c. to Da. E. c. to Sy. Hs/Rn.1/WJ.11.11.30. The attached report shows the difficulties we have experienced while testing the Salerni Coupling. Our results… | ||
| Scan088 | Brief review of the operation of the Salerni coupling on RAC. 7. | ||
| View original record | To R. From Hs/GR. c. to SS. Wor. c. to Da. E. c. to By. Hs/GR.1/MJ.11.11.30. SALERNI COUPLING ON RAC. 7. Briefly reviewing the operation of this device. The coupling itself consists of three members… | ||
| Scan089 | Instructions and analysis of gear engagement and clutch operation for a Salerni gearbox. | ||
| View original record | -2- from rest except by holding the gear lever against the gear while pressing the clutch pedal. This may shift Y into a position for engagement. Starting from rest. A gear having been engaged by (1)… | ||
| Scan090 | Issues with gear engagement, the Salerni coupling, cone brake, and a torsion spring. | ||
| View original record | -3- Hs/GR.1/ML.11.11.30.Contd. both the third and first motion shafts and any gear can be engaged. This does not always happen because of the Salerni coupling not being fully engaged before commencing… | ||
| Scan091 | Blueprint diagram of a Salerni Coupling in the free-wheeling position. | ||
| View original record | SALERNI COUPLING IN FREE WHEELING POSITION SLIDING MEMBER ON 3RD MOTION SHAFT FIXED MEMBER SPLINED ON PROP: SHAFT SYNCHRONISER RING FLOATS FREELY ON SLIDING MEMBER X Y Z P | ||
| Scan092 | Description of the operation of the Salerni lever mechanism. | ||
| View original record | X4510 13.11.30. OPERATION OF SALERNI LEVER MECHANISM. Fig.II shows normal position of clutch in and Salerni coupling engaged. Depressing the clutch pedal pushes the lever L against the rotor A and… | ||
| Scan093 | Two diagrams illustrating the freewheeling and engaged positions of a simplified Salooni operating mechanism on EAC 7. | ||
| View original record | Simplified Salooni Operating mechanism on EAC 7 Fig I Clutch left in Salooni in freewheeling position E T A S L R Fig II Clutch in Salooni engaged E A S L R | ||
| Scan094 | Issues and potential experimental use of the Salerni coupling on a 40/50 model. | ||
| View original record | HS. FROM DA. X/F510 DA3/M15.11.30. SALERNI COUPLING ON 40/50. Though we have abandoned the Salerni coupling we think it will be possible to make use of it to confirm one or two points on our epicyclic… | ||
| Scan095 | Instruction about ensuring no load on the clutch rod when the coupling is engaged. | ||
| View original record | (2) (3) When the coupling is engaged there should be no load at all in the rod to the clutch, and so there should be no tendency for the clutch to slip due to this rod. DA. | ||
| Scan096 | Request to insert packing pieces and reduce torque on the springs for a Salerni coupling on a 14-Ex model. | ||
| View original record | X4510. RHC. From Hs/GR. Hs/GR.1/MU.17.11.30. SALERNI COUPLING ON 14-EX. Will you please insert packing pieces between the speed up springs (G78671) and the retainer (G78694), and also between the… | ||
| Scan097 | Experiments to be carried out on the Salerni coupling for the EAC.7. | ||
| View original record | Y4810 To DA. From Hs/GR. Hs/GR.1/MU.18.11.30. SALERNI COUPLING ON EAC.7. Replying to your Da3/M15.11.30. We will carry out as soon as possible the experiments you suggest. (1) Increase the drag of the… | ||
| Scan098 | Issues with change gear mechanisms, specifically Maybach jaws, and proposing alternative solutions. | ||
| View original record | HS. / FROM R. DA/HDY. } (At Le Canadel.) E. X4510 R1/M2. 3. 31. C. to SG. WOR. BY. CHANGE GEAR. MAYBACH JAWS ETC. X.2200. X.523. X.4510. (1) It does not seem that these will work when we try to change… | ||
| Scan099 | The proposal to carry two spare wheels on the rear of a Phantom II for the Prince of Wales. | ||
| View original record | X4521. Hs. from Da/Ev. C. C. Da/Evl0/M15.11.29 PHANTOM II FOR PRINCE OF WALES. The Prince of Wales proposes to carry two wheels aft of the rear cross tube on his Phantom II. The body is like that on… | ||
| Scan100 | The proposal to carry two spare wheels on a Phantom II car for the Prince of Wales. | ||
| View original record | X. 4117 To Da/Ev. from Hs/Rn. c, to C. Hs/Rnl/AD20.11.29. PHANTOM II FOR PRINCE OF WALES. With reference to your Da/Ev10/M15.11.29 we note that you propose to carry two spare wheels behind the rear… | ||
| Scan101 | Weight distribution at the rear of cars, specifically regarding spare wheel placement for H.R.H. The Prince of Wales. | ||
| View original record | HS. FROM DA/EV. X4521 DA/EV4/M26.11.29. Copy to SG. R. re. WEIGHT AT BACK OF CARS. X.7600 X.7840. X.4521. As you are aware, H.R.H. The Prince of Wales is carrying two spare wheels aft of the rear… | ||
| Scan102 | Required improvements and concerns for car 115-WJ, belonging to the Prince of Wales. | ||
| View original record | FOR MR H.S. MR JLE. MR PW. 6261 U X4117. EP2/H2.12.29. re. 115-WJ. PRINCE OF WALES. With further reference to our EP3/HSC.11.29. I certainly consider that we should take advantage of the fact that the… | ||
| Scan103 | Faults on a car's bonnet, radiator, shock absorbers, springing and steering, including a special mascot for the Prince of Wales. | ||
| View original record | - 2 - (4) Bonnet. This has been fabric covered and the fit is generally bad. Hinges distorted and strained and badly rivetted (by coachbuilders), does not ride properly on stripe, and difficult to… | ||
| Scan104 | Letter to H.M. Hobson Ltd. regarding failures on K. S. Petrol Gauges, including one on the Prince of Wales' car. | ||
| View original record | X4521. Expl. Dept. Hs/Rn.1/MJ. Jan.18th.1930. Messrs. H.M. Hobson Ltd., 47 - 55, Acton Vale, LONDON. W.3. Dear Sirs, For the attention of Major Searight. K. S. PETROL GAUGES. We shall be glad to… | ||
| Scan105 | Proposal to increase luggage box size and its impact on weight distribution and steering. | ||
| View original record | x4521. To C. From Hs/Rm. Hs/Rm.1/MJ.13.1.30. x7810 x784 x4521. With reference to C7/C10.1.30. You will note from EP1/H13.1.30., that the proposal is now to increase the size of the luggage box so that… | ||
| Scan106 | Car test and a steering question related to the Prince of Wales' car. | ||
| View original record | S/W. Hs/Rn. X45-1 C7/C10.1.30. X.7810 X.7840 X.4521 I was very interested to read your report upon your test of the car with two wheels and tyres carried beyond the rear cross tube. I enclose copy of… | ||
| Scan107 | Modifications to the Prince of Wales' car, concerning the fitting of two rear wheels and its effect on steering. | ||
| View original record | DA/EV. C.6/C10.1.30. Re. Prince Wales' Car. DA/EV2/9.1.30. The Prince of Wales' car will not be used again until he returns in April, so that there is plenty of time. As regards the last part of your… | ||
| Scan108 | Failure of a Hobson K.S. Telegauge on chassis 115-WJ, belonging to the Prince of Wales. | ||
| View original record | Hs/Rm from Mx. X4521. Mx6/T22.1.30 re Chassis 115-WJ - Prince of Wales At the top of page 3 of the report attached to EP's memo EP1/H13.1.30 of which you have a copy, reference is made to the Hobson… | ||
| Scan109 | Letter concerning the return of a faulty telegauge head from the Prince of Wales' car for inspection due to a suspected leak. | ||
| View original record | X4521. Expl. Dept. Hs/Rn2/MJ. Jan. 22nd, 1930. Messrs. H.M. Hobson Ltd., 47 - 55, Acton Vale, LONDON W.3. Dear Sirs, For the attention of Major Searight. We are sending you herewith the telegauge head… | ||
| Scan110 | The despatch of one Telegauge Head to Messrs H.M. Hobson for inspection. | ||
| View original record | X4521. Stores. From Hs/Bn. c. to O.O. S.O. Hs/Rn.5/MJ.22.1.30. We are sending into the Stores for despatch to Messrs H.M. Hobson, 47-55, Acton Vale, London W.3. - One Telegauge Head. This is for their… | ||
| Scan111 | Confirming the repair and dispatch of the dashboard unit from the Prince of Wales' car. | ||
| View original record | XC521 MX. From Hs/Rn. Hs/Rn.1/WJ.7.2.30. I send you herewith the dashboard unit off the Prince of Wales' car, which has been repaired. Hs/Rn. | ||
| Scan112 | Alterations and performance testing of car 115-WJ, belonging to the Prince of Wales. | ||
| View original record | Wor. c. Hs. -BY- -DA/EV. E. Y4521 EP1/H26.4.30. re. 115-WJ. Prince of Wales. The above car, after alterations to the fixing of the spare wheel, springs and body work etc. has again been put into… | ||
| Scan113 | Inquiry regarding modifications to the car suspension for the Prince of Wales to reduce swaying. | ||
| View original record | X4521, CS/C30.5.30. S/R...[REDACTED] c. to JWR WGF Br -> Hs P/NF HT ------ Re 115-WJ....Prince of Wales. ------ With reference to LNS/R29.5.30, I have also seen Ledbrook. Will you please consider this… | ||
| Scan114 | Correspondence authorizing the fitting of stronger springs and special friction shock absorbers to the Prince of Wales' car. | ||
| View original record | X4521. S/W... [struck through] C. to Mr. [struck through] Mr. [struck through] -> Hs. By/DP Hm. ----- C11/C30.5.30. Re 115-RJ...PRINCE OF WALES. EP/H30.5.30 ----- I have written you separately on this… | ||
| Scan115 | Modifications to the suspension of the Prince of Wales' car. | ||
| View original record | Y4521 EP7/H30.5.30. re.115-WJ. PRINCE OF WALES. We hasten to deal with the points raised in LE5/H29.5.30. in which he reports that since the car has been over to France the Prince complained of the… | ||
| Scan116 | Spring specifications for a car and assigning a non-standard job to the Experimental or Repair department. | ||
| View original record | - 2 - EP7/H30.5.30. come to the Works, where we consider this job should be done. For BY's information, the car as last delivered was fitted with the following springs:- Front. Near. 1058. Off 1060.… | ||