Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Arranging a meeting with the Engineering Branch at Scotland Yard concerning wireless screening. | ||
| View original record | S/L. WST X6008 Lp2/LAM.26.11.31. To Rp. (crossed out) From Lp. Copy to Wor. " " Hs. Re: WIRELESS SCREENING. With reference to your Rg5/DM.25.11.31., F. is absent, so I have been in touch with Scotland… | ||
| img002 | Information from Scotland Yard about battery ignition and wireless interference in London Police vehicles. | ||
| View original record | c. Hs. c. RECD NOV 26 76008 Rg5/DM.25.11.31. We have been interested for some time in battery ignition and interference with wireless. We understand the London Police use battery ignition on their… | ||
| img003 | The problems of ignition screening for a 20/25 engine in a light tank, comparing battery and magneto systems. | ||
| View original record | To P. from Hs/Wst. c. E. c. Wor. Bv. X6008 Hs/Wst.2/AD4.8.32. IGNITION SCREENING OF 20/25 ENGINE IN LIGHT TANK The screening of the battery ignition on this engine presents rather a formidable… | ||
| img004 | On ignition system tests, radio interference suppression for Scotland Yard cars, and a simpler switchbox design. | ||
| View original record | -2- HS/Wst. 2/AD4. 8.32 contd. We are proposing to carry out tests immediately on one of our battery ignition distributors and coils to ascertain if our coil will deliver sufficient voltage with the… | ||
| img005 | Outlining modifications and supply details for 20/25 HP engines for tanks ordered by the War Office. | ||
| View original record | S/W To E, from F. Copy to Wgr. R. D/BP. WST X6008 F5/JL.5.8.32. G/Rb. Hs/Wst.C 20/25 H.P. ENGINES FOR TANKS. Please find herewith copy of schedule which the Technical Department is submitting to the… | ||
| img006 | Ignition screening experiments for a 20/25 engine intended for a light tank. | ||
| View original record | To E. & Ey. from Hs/Wst. c. R. Sg. c. Nor. P. IGNITION SCREENING ON 20/25 ENGINE FOR LIGHT TANK We have now completeda series of experiments with our standard 20/25 battery ignition distributor and… | ||
| img007 | Recommendation to reduce spark plug gaps for tank engines with screened ignition systems. | ||
| View original record | -2- engine, was 14200. Allowing for a reduction due to the increased temperature of the electrodes under working conditions of 3000 volts, this gives 11,200 as the working voltage for starting up from… | ||
| img008 | Request to test the maximum sparking gap for a 20/25 engine with screened ignition in a light tank. | ||
| View original record | WST 86008 To Wst. from E. E.2/HP.18.8.32. c. Mr. By R. Hs/Wst. re 20/25 Engine in Light Tank - Screened Ignition. We should be glad if you would make a test to determine what maximum sparking gap can… | ||
| img009 | Letter regarding the wireless screening of a 20/25 HP tank engine. | ||
| View original record | S/W To Hs/Wst. from F. Copy to Wor. E. By. x6008 F2/JL.27.8.32. WIRELESS SCREENING OF 20/25 H.P. TANK ENGINE. Please see the attached copy of a letter which we have received from the War Office… | ||
| img010 | Letter from The War Office regarding the frequency bands for light tank wireless sets. | ||
| View original record | C O P Y M.G.O.5, THE WAR OFFICE, LONDON, S.W.1. 57/Vehs./2925 (M.G.O.5.) 25th August, 1932. Dear Colonel Fell, I was left a verbal message by Colonel Pile before he went on leave a few days ago to the… | ||
| img011 | Wireless screening of a 20/25 tank engine and potential radio interference issues. | ||
| View original record | Y86008 To F. from Hs/Wst. c. E. Wor. c. By. Hs/Wst.6/KT. 29.8.32. WIRELESS SCREENING OF 20/25 TANK ENGINE. We thank you for your F.2/JL. 27.8.32, referring to the above. We can foresee no difficulty… | ||
| img012 | Methods for screening against wireless radio interference in vehicles. | ||
| View original record | S/W. Hs......from PN. WST V-6008 PN.1/WT17.11.32. Screening for Wireless. Will you please cancel memo PN2/WT16.11.32 and substitute the following. When discussing with you at W. on Monday the steps… | ||
| img013 | Methods for screening against wireless interference from sparking plugs when fitting a radio. | ||
| View original record | X6008 WST S/W. Hs/Wst...from PN. PN.5/WT17.11.32. Screening for Wireless. Again reverting to our conversation when I was at W. last, Messrs. Park Ward have an order for a 25 H.P. car from an American,… | ||
| img014 | Suggesting improvements for the screening of battery ignition systems on 2/25 tank engines. | ||
| View original record | V6008 E & Ry. From Hs/Wst. c.c. to Wor. c.c. to F. Hs/Wst.2/MA.18.11.32. X3374 SCREENING OF BATTERY IGNITION ON 2/25 TANK ENGINES. We have now had an opportunity of examining D.Sch.570 and we put… | ||
| img015 | Suggestions for improving aero engine electrical systems to fulfill Air Ministry obligations for radio installations. | ||
| View original record | -2- Hs/Wst.2/MA.18.11.32. Contd. wrong because, the presence of these earthed cables and earthed fittings in close proximity to the high tension terminals would produce considerable ionisation inside… | ||
| img016 | Screening for wireless interference on cars, specifically ignition resistance and dynamo chokes. | ||
| View original record | X 86008 PN. From Hs/Wst. & E.P. Hs/Wst.3/MA.18.11.32. SCREENING FOR WIRELESS ON CARS. Answering your PN.1/WT.17.11.32, and GN.5/WT. 17.11.32. The ignition on our cars would probably work quite well… | ||
| img017 | Advice from Marconi's Wireless Telegraph Company on suppressing electrical interference from the dynamo and ignition systems. | ||
| View original record | TELEGRAPHIC ADDRESSES: Inland: EXPANSE, ESTRAND, LONDON. Foreign: EXPANSE, LONDON. CODES: MARCONI INTERNATIONAL, WESTERN UNION, BENTLEY'S, A.B.C. 5th & 6th Ed. LIEBER'S, SCOTT'S. TELEPHONE TEMPLE BAR… | ||
| img018 | Page two of a letter discussing H.T. chokes and coil ignition systems for S.W. reception. | ||
| View original record | MARCONI'S WIRELESS TELEGRAPH CO., LTD. 77313 (25 Rms. S.P. & Co., Ltd. 1/31) Rolls-Royce, Ld. Page 2. An H.T. choke can be used in addition if S.W. reception is desired. If a coil ignition system is… | ||
| img019 | Development and contract amendment for a battery ignition screening system for the Light Tank 20/25 engine. | ||
| View original record | WST 816008 To WGT. from E. E.1/HP.25.11.32. c. [illegible] Hs/Fst. [illegible] Light Tank 20/25 Installation - Screening of Battery Ignition. Yesterday we had a visit from Mr Sheryer who will act as… | ||
| img020 | Record of an agreement concerning modifications, additional expenses, and scheduling a wireless test for a second installation. | ||
| View original record | - 2 - E.1/HP.26.11.32. set of screening to the existing scheme and a second set embodying all the improvements thought desirable at the moment. Mr Sheryer agreed that we ought not to be called upon to… | ||
| img021 | Letter to Marconi Wireless Telegraph Co. Ltd. regarding information on wireless screening and a subsequent invitation. | ||
| View original record | Hs/Wst.3/AD. November 28th, 1932. Marconi Wireless Telegraph Co.Ltd. Marconi House, Strand, W.C.2. Dear Sirs, We thank you for your letter of the 25th inst. ref. Engineering Dept. No. E/A.77312, with… | ||
| img022 | Covering memo referencing an attached note sent to PN. | ||
| View original record | X6008 EP. From Hs/Wst. Hs/Wst.6/MA.16.12.32. Please find attached copy of note sent to PN. on 18.11.32., memo reference Hs/Wst.3/MA.18.11.32. Hs/Wst. | ||
| img023 | Wireless screening requirements for a 20/25 tank engine's battery ignition system. | ||
| View original record | X6008 To WEH. from E. E.6/HP.21.12.32. c.c. EvE. RHH. Hives. Ist. re 20/25 Tank Installation Screening of Battery Ignition, etc. ------------------------------------------------- We had a visit… | ||
| img024 | H.T. cable suitability and proposing a standard armoured cable for tank operation. | ||
| View original record | - 2 - E.6/HP.21.12.32. it is the large diameter of H.T. cable called for which will not suit our standard distributor moulding, and for which the screened ignition plug terminals we contemplate using… | ||
| img025 | Cover note forwarding a letter concerning the screening of engine ignition. | ||
| View original record | Y6008 To Hs/Wst. } from E. E.8/HP.21.12.32. ---------------------------------------------------- We send you herewith copy of a letter we have addressed to Woolwich, re Screening of Ignition of… | ||
| img026 | Letter to Major Carter requesting particulars and loan of choke and condenser units for ignition testing. | ||
| View original record | Copy to Hs/Wst. E.5/HP. 21st December 1932: Your Ref. Section MGO.11. Major Carter., Signals Experimental Establishment, Woolwich Common, LONDON.S.E.18. Dear Sir, Referring to the visit of your… | ||
| img027 | The screening of battery ignition on a 20/25 tank installation for wireless testing. | ||
| View original record | S/W To Wer. from F. Copy to E. By. X6008 F3/JL.23.12.32. KC Mx. Hs/Wst. 20/25 TANK INSTALLATION SCREENING OF BATTERY IGNITION, ETC. With reference to E.6/HP.21.12.32 regarding the above, the War… | ||
| img028 | Cover note forwarding a letter from the Signals Experimental Establishment regarding choke and condenser values for tank L.T. circuits. | ||
| View original record | WST X6008 To Hs/Wst. from E. E.l/HP.30.12.32. c. Wor. By. F. MX. re Screening of Tanks. We attach herewith copy of letter received from The Signals Experimental Establishment, Woolwich, in answer to… | ||
| img029 | Letter from the Signals Experimental Establishment regarding choke and condenser specifications for ignition tests. | ||
| View original record | SIGNALS EXPERIMENTAL ESTABLISHMENT WOOLWICH COMMON, S.E.18. Ref. S.E.E. E/710/15. 29th December 1932. A.G. Elliott Esq. Messrs. Rolls-Royce Limited. DERBY. Dear Sir, In answer to your letter E.5/HP.… | ||
| img030 | Confirming the handover of a choke and condenser for testing on a Tank L.T. ignition circuit. | ||
| View original record | X6008 WST To Hs/Wst. from E. re Screening of Tank. This confirms that we handed to you today a sample choke and condenser for test on the Tank L.T. Ignition Circuit, together with a set of blueprints… | ||
| img031 | Tests conducted on the effect of a choke and condenser on the 20/25 HP battery ignition system for tank engines. | ||
| View original record | X6008 E. from Hs/Wst. c. By. Mx. c. F. Hs/Wst.6/KT.11.1.33. EFFECT OF CHOKE ON THE OPERATION OF THE 20/25 HP. BATTERY IGNITION ON TANK ENGINES. In accordance with your request, we have carried out… | ||
| img032 | Dynamo testing, choke additions, and control brush settings for tank engines. | ||
| View original record | -2- Hs/Wst.6/KT.11.1.33 a relatively low inductance as compared with coils of other makes. With regard to the dynamo, we are arranging to carry out tests as soon as possible, to ascertain what effect… | ||
| img033 | Wireless interference tests conducted on a 20/25HP engine fitted to a light tank. | ||
| View original record | X6008 E. From Hs/Wst. c. to By. c. to Mor. c. to F. c. to MX. Hs/Wst.4/MA.27.1.33. WIRELESS INTERFERENCE ON 20/25HP. ENGINE FITTED TO LIGHT TANK. The War Office Representatives have now carried out… | ||
| img034 | Wireless interference and telephonic reception concerning a tank's screening. | ||
| View original record | -2- Hs/Wst.4/MA.27.1.33. Cont'd. Although Mr. Archer and myself considered the interference to be negligible, the two War Office Representatives thought that on the short wave lengths the interference… | ||
| img035 | Cover note for an attached report on wireless interference with the 20/25 tank engine. | ||
| View original record | X6008 To Rg. from Hs/Wst. Hs/Wst.4/AD30.1.33. With reference to our telephone conversation, we attach herewith copy of our report on wireless interference with the 20/25 tank engine. Hs/Wst. att: Copy… | ||
| img036 | Letter to the Air Ministry attaching a report on ignition screening for a light tank with a 20/25 HP engine. | ||
| View original record | X6008 c. Hs/Wst. Rg.3/DM. January 31st, 1933. Major G.P. Bulman, O.B.E., Air Ministry, Adastral House, Kingsway, W.C.2. Dear Bulman, I attach for your information copy of a report on the ignition… | ||
| img037 | Tests for wireless interference on a 20/25 HP engine fitted to a light tank. | ||
| View original record | COPY. WIRELESS INTERFERENCE ON 20/25 HP. ENGINE FITTED TO LIGHT TANK. The War Office representatives have now carried out tests in conjunction with ourselves on the light tank at the Works fitted with… | ||
| img038 | The supply and specification of L.T. ignition filter circuits for tank engines. | ||
| View original record | X6008 To E. from Hs/Wst. Hs/Wst.4/KT.1.2.33. Re. L.T. IGNITION FILTER CIRCUIT FOR TANK ENGINES. With regard to the supply of filter units for the tanks Messrs Feranti would supply the chokes and… | ||
| img039 | A letter sent to the Director of Army Contracts regarding 20/25 HP tank engines. | ||
| View original record | X6008 To F. from E. E.1/HP.15.2.33. c. Wor.By. L/BP. Hs/Wst. re 20/25 HP. Rolls-Royce Tank Engines. We attach herewith copy of a letter we have addressed to the Director of Army Contracts. E. | ||
| img040 | Letter concerning a contractual disagreement over filter units for 20/25 HP tank engines. | ||
| View original record | RECEIVED E/JNR.9/HP. 14th February 1933. The Director of Army Contracts., Caxton House, West, Tothill Street, Westminster, LONDON. S.W.1. Dear Sir, re 20/25 HP. Rolls-Royce Tank Engines.… | ||
| img041 | Letter to the Director of Army Contracts regarding a wireless screening system and filter unit for a tank engine. | ||
| View original record | (2) E/JNR.9/HP. 14th February 1933. The Director of Army Contracts. Fell was informed quite definitely that the wireless screening system as fitted by us in the Tank was approved as satisfactory -… | ||
| img042 | Request to arrange the return of two condensers and three chokes loaned for wireless screening tests on a light tank. | ||
| View original record | X6008 D/BP. From Hs/Wst. c. to E. Hs/Wst.7/MA.17.2.33. Will you please arrange to return to the W.O. Woolwich two condensers and three chokes which were loaned to us in connection with wireless… | ||
| img043 | Contractual dispute with the War Office regarding the supply of filter units for 20/25 HP tank engines. | ||
| View original record | S/W To E. from F. Copy to Wor. Hs/Wst. WST 86008 F4/JL.22.2.33. 20/25 H.P. TANK ENGINES. With regard to the argument we are having with the War Office Contracts Department regarding the supply of the… | ||
| img044 | Dispute with the War Office concerning the filter unit and ignition system for tank engines. | ||
| View original record | WST 86008 P.1/JL.10.3.33. 2/E To F. from F. [struck through] Copy to Wor. NX. MX. TANK ENGINES - FILTER UNIT AND IGNITION SYSTEM. We have had further communication with the War Office, and the… | ||
| img045 | Ignition screening for 20/25 HP tank engines for the War Office. | ||
| View original record | To Sg. from F. Copy to Py. S/M Copy to Wor. [crossed out: Hx.] Hx/Wst. TANK ENGINES - IGNITION SCREENING. Major Rowcroft and Mr. Sheryer visited Derby yesterday accompanied by the undersigned to… | ||
| img046 | Ignition system screening for a 20/25 Tank Installation. | ||
| View original record | WST 86008 To Mr. Eg. } from E. c.c. Mr. By. Mr. D/BP. c/o. Mr. Ha/Wst. E.7/HP.30.3.33. 20/25 Tank Installation.Screening. During the visit of Major Rowcroft, Chief Inspector of Armaments and his… | ||
| img047 | Moisture issues with a terminal's insulation, awaiting War Office advice for production and testing of a new sample set. | ||
| View original record | - 2 - E.7/HP.30.3.33. ----------- due to moisture working in between the metal terminal and its sleeve of insulation. We expect to receive in due course some advice from the War Office in respect to… | ||
| img048 | Supply and material specifications for a 'Pletit Unit' for wireless screening. | ||
| View original record | S/W To D/BR from F. WST x6008 F16/J1.4.4.33. Copy to Mr. GARb. E. Hs/Wst. WIRELESS SCREENING - PLETIT UNIT. We were informed by the Contracts Department this morning that they were writing to us… | ||
| img049 | Letter to the Director of Army Contracts detailing the specifications and suppliers for a Wireless Screening Filter Unit. | ||
| View original record | COPY. F12/JIA4433. 4th April, 1933. The Director of Army Contracts, Caxton House West, Tothill Street, Westminster, London, S.W.1. for the attention of Mr. Bell. Dear Sir, WIRELESS SCREENING FILTER… | ||
| img050 | Modifications to 20/25 HP tank engines regarding thermometer plugs and wireless screening. | ||
| View original record | S/W To By. from P. Copy to Nor. B. Mx. WST URGENT. F11/JL.5.4.33. A008 Hs/Wst. D/BP. 20/25 H.P. TANK ENGINES. Major Rowcroft has been on the 'phone this afternoon and has raised the following two… | ||
| img051 | War Office letter about altering the screening on 61 tank engines from copper to phosphor bronze wound armouring. | ||
| View original record | x6008 WST E.2/HP.6.4.33. To C/Hb. from E. c for By. F. Mx. P/BP. Hs/Ist. re Tank Engines. -------------- We attach herewith a copy of letter "CTV/I/555 (UC.2)" dated 4th April, received from the War… | ||
| img052 | Letter from the War Office regarding the screening of tank engines, filter units, and a query about a new type of cable for an additional 61 engines. | ||
| View original record | COPY. THE WAR OFFICE, (Contracts Dept). CAXTON HOUSE WEST, TOTHILL STREET, WESTMINSTER, S.W.1. Cts./I/555.(D.C.2). 4th April 1933. Gentlemen, Contract I/555 dated 27th October 1932. Tank Engines. With… | ||
| img053 | Request to assemble a ferrule on a sample plug for further testing of a screened ignition contact. | ||
| View original record | c.Hs/Wst. *6008 BY/RD.2/J.19.5.33. Screened Ignition Contact T.555. Will you please put in hand one E.41538 Ferrule, to be assembled on the sample plug for further testing. Prints herewith of E.41538… | ||
| img054 | Modifications requested by the War Office for the screening of 20/25 HP Tank Engines. | ||
| View original record | To W.C.R. from E. c. Sg. By. G. Mr. G/Rb. Wst. WBr. E.8/HP.26.5.33. WST 20/25 HP. Tank Engines. Colonel Fell was up here on the 24th inst. with two representatives of the War Office, and left us with… | ||
| img055 | Test report on screened ignition wiring terminals and their performance under water and heat stress. | ||
| View original record | x6008 E. From Hs/Wst. c. to By/RD. Hs/Wst.2/MA.7.6.33. SCREENED IGNITION WIRING TERMINALS TO E.41551. We have now tested this arrangement of making up the ends of the screened high tension cables and… | ||
| img056 | Outlining proposed tests for screened ignition plugs for tank engines. | ||
| View original record | x6008, To Hs/Wst. from E. E.4/HP.12.6.33. c. Wor. By. Mr. Screened Ignition Plugs for Tank Engines. Referring to the contract for supplying two types of screened plugs to the War Office and also… | ||
| img057 | Lubrication, wireless screening, and dynamo capacity for 20/25 HP tank engines. | ||
| View original record | WST x 6008 F3/JL.23.6.33. S/W To E. from F. Copy to Wor. By. Hs/Wst.T 20/25 H.P. TANK ENGINES. (1) LUBRICATION. One of the tanks fitted with an R-R engine was recently in an accident in which it fell… | ||
| img058 | Inquiry regarding the dynamo capacity of the 20/25 HP engine in light tanks for powering a wireless set. | ||
| View original record | COPY. 86008. TC/732 23rd June, 1933. Messrs. Rolls Royce Limited, DERBY. Gentlemen, I would be obliged if you would give me your opinion on the capacity of the dynamo, as at present fitted to your… | ||
| img060 | Cover note referencing three attached letters regarding 20/25 HP tank engines on the topics of lubrication, wireless screening, and dynamo capacity. | ||
| View original record | S/W To E. from F. Copy to Wor. By. WST x6008 F.1/JL.26.6.33. Mx. Hs/Wst. 20/25 H.P. TANK ENGINES. With reference to our F3/JL.23.6.33:- (1) LUBRICATION Please see the attached copy of letter from the… | ||
| img061 | Letter regarding an oil leak from a 20/25 HP engine's lubricating system in a Light Tank. | ||
| View original record | COPY TC/733. 23rd June, 1933. Messrs. Rolls Royce Limited, DERBY. For attention of Lt. Col. Fell, D.S.O., O.B.E. Gentlemen, CONTRACT T.555. 20/25 H.P. ENGINE. Lubricating System. An instance has… | ||
| img062 | Letter regarding the screening arrangements for 20/25 HP engines, advising that no modifications are currently required. | ||
| View original record | COPY TC/484. 23rd June, 1933. Messrs. Rolls Royce Limited, DERBY. Gentlemen, CONTRACT T.555. 20/25 H.P. Engines - Screening Arrangements. --------------------- With reference to previous… | ||
| img063 | Internal memorandum regarding experiments and modifications for Tank Engines under contract T.555. | ||
| View original record | x6008 To H. From E. c.c. Sy. Mr. D/L. NHC. C/W. Hs/Est. E.13/HP.1.8.33. Contract T.555. Tank Engines. Replying to your memo D/L.1/B.31.7.33, we can see no objection to proceeding with the experiments… | ||
| img064 | Instructions for the production, testing, and despatch of two sets of ignition wires for tank engines. | ||
| View original record | from RHC/CEP: x6008 c. Hs/Wst. c. Stores) RHC/CEP3/MS1.8.33. Y.S.Y. 1039 - Q/54105 - Ctt. T/555. (D.C. 2). In accordance with RHC/EM2/MS19.6.33, you were instructed to produce 2 sets of Ignition Wires… | ||
| img065 | Test results for ignition wires for tank engines, comparing voltage performance with and without a screen. | ||
| View original record | RR 239 (150 BKS.) (DB 461-8-12 44) MP 306975 x6008 (1 ROLLS-ROYCE LTD. INSTRUCTIONS. To: WST Date: 2/8/38 Order No. Customer's No. Ignition Wires for Tank Engines Two sets of ignition wires, Type L &… | ||
| img066 | Test results for two sets of screened ignition cables fitted with different Lodge screening caps for tank engines. | ||
| View original record | 6008 E. From Ha/Wst. c. to Wor. c. to By c. to Mx. c. to F. c. to RHC/CEP. Hs/Wst.8/MA.3.8.33. IGNITION SCREENING FOR TANK ENGINES CONTRACT T/555. We have now tested two sets of screened ignition… | ||
| img067 | Requesting information about a dynamo for wireless equipment on 20/25 HP engine light tanks. | ||
| View original record | x6008 To Hs/Wst. from E. E.1/HP.30.8.33. re Rolls-Royce 20/25 HP. Engine Light Tanks, Marks IIA and IIB. We attach herewith letter from Woolwich dated 29th inst. asking for further information in… | ||
| img068 | Letter to the Chief Inspector of Armaments concerning the dynamo and battery specifications for Light Tanks Mark 2A and 2B. | ||
| View original record | E.5/HP. 1st July 1933 The Chief Inspector of Armaments., Armaments Inspection Dept. Royal Arsenal, Woolwich, LONDON, S.E.18. Dear Sir, Light Tanks Mark 2A and 2B. In reply to your letter of the 23rd… | ||
| img069 | Drawing of contacts for wireless screens, type M.S.V, sample 'B'. | ||
| View original record | X6008. SAMPLE 'B' CONTACTS FOR WIRELESS SCREENS. TYPE M.S.V. DRAWN DATE 15-9-33 | ||
| img070 | Detrimental effects, such as ignition plug over-oiling, experienced in cars after fitting wireless systems. | ||
| View original record | 86008. EP9/MH.21.9.33 re CARS FITTED WITH WIRELESS ------------------------- There seems to be a definite move now for a considerable number of our complete cars to be turned out with wireless fitted,… | ||
| img071 | Testing spark suppressors for car wireless sets and improving ignition coil performance. | ||
| View original record | 46008 EP. From Hs/Wst. c. to E. c. to Wor. c. to PN. Hs/Wst.1/MA.22.9.33 Re. CARS FITTED WITH WIRELESS. Referring to your EP.9/MH.21.9.33 we agree that we should carry out tests with one of our… | ||
| img072 | Ignition coil performance for cars fitted with wireless and higher compressions. | ||
| View original record | x6008. S/W. Hs/Wst...from PN. Copy to Wor. C. FP. E. PN.11/WT26.9.33. Cars fitted with Wireless also Higher Compressions. Referring to Hs/Wst.1/MA22.9.33 I certainly feel that it is important that we… | ||
| img073 | Request to arrange a meeting with Philco Wireless to discuss spark suppressors for ignition equipment. | ||
| View original record | PN. From Hs/Wst. x 6008. Hs/Wst.5/MA.27.9.33. Will you please arrange for one of the Philco Wireless set people to visit us at the Works here at Derby in order to discuss the question of spark… | ||
| img074 | The feasibility of modifying a dynamo for a tank engine to produce 20 amperes. | ||
| View original record | A6 008. c - Hs/Wst. BY/RD2/W.30.9.33. Dynamos for Tank Engines. With regard to the proposal to get 20 amperes at 1500 R.P.M. on the above machine, we do not think the machine is large enough to do… | ||
| img075 | Urgent confirmation to order parts for a 20/25 tank dynamo, including plates, wire, and commutator components. | ||
| View original record | x6008 By/RD. From Hs/Wst. Hs/Wst.2/MA.27.10.33. 20/25 TANK DYNAMO. We confirm having arranged with you to order from Messrs.Sankey's a set of punched plates for the R.R.Sch.344 machine in their… | ||
| img076 | Request to arrange for another armature to be wound for a dynamo for War Office tank engines. | ||
| View original record | RHC. From Hs/Wst. Hs/Wst.3/MA.27.10.33. -6008- R.R.SCH.344 DYNAMO FOR WAR OFFICE TANK ENGINES. Will you please arrange for another armature to be wound for the above machine as quickly as possible… | ||
| img077 | Parts list for a higher output Dynamo on a 20/25 HP Tank Engine. | ||
| View original record | RHC. 6008 BY/RD3/W.3.11.33 20/25 H.P. Tank Engine. Dynamo, Higher Output. ? O/54105. In order to obtain better performance of the above machines, will you please put in hand the following parts :-… | ||
| img078 | Difficulties in obtaining the desired output from a 20/25 HP tank dynamo. | ||
| View original record | 86008. E. From Hs/Wst. Hs/Wst.4/MA.16.11.33. 20/25 HP. TANK DYNAMO. We are having considerable difficulty in obtaining the output desired for the above. The trouble is not due to the windings heating… | ||
| img079 | Instructions for rewinding a Bensport dynamo armature for a 20/25 HP tank engine. | ||
| View original record | RHC. From Hs/Wst. 86008 Hs/Wst.4/MA.18.11.33. 20/25 HP. TANK ENGINE DYNAMO. In connection with the above will you please have one of our Bensport dynamo armatures rewound with only two turns per coil… | ||
| img080 | Experiments to develop a 20/25 tank engine dynamo capable of delivering 20 amperes. | ||
| View original record | 86008 By. From Ha/Wst. c. to Sg. c. to Wor. c. to E. c. to Mx. c. to F. Ha/Wst.1/MA.11.12.33. 20/25 TANK ENGINE DYNAMO. As a result of a request from the W.O. Armament Dept. that we should endeavour… | ||
| img081 | Report proposing a contract to produce a dynamo designed for the 20/25 HP engine for the War Office Armament Dept. | ||
| View original record | -2- Hs/Wst.1/MA.11.12.33. Cont'd. The purpose of this report is therefore to suggest that as preliminary experiments are indicating satisfactory results we should apply for a contract to produce a… | ||
| img082 | Relaying a reply from the War Office regarding trials for a 20/25 HP Engine Dynamo. | ||
| View original record | S/W To L. from F. Copy to Wor. WST r6008. F17/JL.22.12.33. Hs/Wst. 20/25 H.P. ENGINE DYNAMO. With reference to the above, please see the following reply which we have received from the War Office to… | ||
| img083 | Solenoid issue and urgent delivery requirement for a Tank Engine. | ||
| View original record | 86708 WST To. From E. E.7/HP.21.6.34. c.c. H. Hs/Wst. By/RD. re Tank Engine. We are sorry to say we have run into some trouble on the Tank engine owing to the solenoid we added to assist the starter… | ||