Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Requesting an electrolytic vacuum valve for experimental work. | ||
| View original record | X.3646 To Oy. from EFC. c. to CJ. EFC1/T9.8.19. X3646. RE ELECTROLYTIC VACUUM VALVE. You may remember when you were here, you said you might possibly obtain for me one of the above and forward it for… | ||
| Scan002 | Letter discussing the sourcing and use of electrolytic vacuum valves for accumulator charging and wireless telegraphy. | ||
| View original record | X,3646. ROLLS-ROYCE, LIMITED 15 BROAD STREET NEW YORK TELEPHONE HANOVER 2155 OyS-F28/8/19 X 3646 X 3374 Aug. 28, 1919 EFC from Oy:- Copy CJ RE ELECTROLYTIC VACUUM VALVE 1. Replying to yours,… | ||
| Scan003 | Requesting to see new vacuum valve specimens from the US for potential use in car lighting dynamo systems. | ||
| View original record | H H 235 B 1200 T? (S F. 673. 22-5-19) G. 2576 X. 3646 To E.P. from E.F.C. EFC3/T18.9.19. X.3646 X3374 RE VACUUM VALVES We understand that you brought back with you from the States, some specimens of… | ||
| Scan004 | The use of rectifier valves for wireless apparatus on trans-Atlantic flight machines and for battery charging. | ||
| View original record | E.F.C. EP9/F20.9.19. X.3646 with reference to your EFC3/T18.9.19, I have not any rectifier valves, but I know that these were used successfully by the wireless people who were dealing with the… | ||
| Scan005 | Requesting samples of electrolytic vacuum valves for experimentation from the R.A.F. | ||
| View original record | To Bn. from EFC. EFC5/T24.9.19. Handwritten notes: Top Left: E.F.C. X 3646 Top Right: Write to Capt Briggs RAF Central House Kingsway I spoke to him if he can help us. Bn Stamp: B 24 XII 1919 RECEIVED… | ||
| Scan006 | Letter requesting Electrolytic Vacuum Valves for experimental use in controlling a chassis lighting dynamo. | ||
| View original record | X. 3646 EFC9/T. 26th Sept. 1919. Captain Briggs, R.A.F., Central House, Kingsway, London. Dear Sir, RE ELECTROLYTIC VACUUM VALVE Colonel Barrington suggested our writing to you as we are anxious to… | ||
| Scan007 | Letter from the Ministry of Munitions of War regarding the sensitive construction of an Electrolytic Vacuum Valve. | ||
| View original record | X 3646 MINISTRY OF MUNITIONS OF WAR. AIR GROUP. Telegrams: "TECHNIDEP, WESTCENT, LONDON." 'Phone: REGENT 6700 EXTENSION. 315 Trunk Line: AIRCRAFT PRODUCTION, LONDON (EXTENSION............). TECHNICAL… | ||
| Scan008 | Price list and particulars for Thermionic Valves from the General Electric Co. Ltd. | ||
| View original record | To O.O. from EFC. EFC2/T7.10.19. X.3646 - RE THERMIONIC VALVE. Will you kindly write to the General Electric Co. Ltd., Osram Lamp Works, Hammersmith, London, W., for list of prices and particulars of… | ||
| Scan009 | Letter from Osram-Robertson Lamp Works regarding the supply of rectifying valves, with an internal note clarifying interest. | ||
| View original record | COPY. OSRAM-ROBERTSON LAMP WORKS LIMITED. BROOK GREEN, HAMMERSMITH, LONDON, W.6 X. 3646 CW/MNH/456. October 9th 1919. Messrs. Rolls-Royce Ltd., Nightingale Road, Derby. Dear Sirs, We are in receipt of… | ||
| Scan010 | Quotation from Osram-Robertson Lamp Works for O.R.3 rectifying valves. | ||
| View original record | X3646 ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM. OSRAM-ROBERTSON LAMP WORKS, LIMITED. TELEPHONE NOS. 1500 HAMMERSMITH. 1501 1502 TELEGRAMS: OSRAM, PHONE, LONDON. VOLTAMENTO, PHONE, LONDON. GLASS… | ||
| Scan011 | Request to obtain up-to-date catalogues for thermionic valves from three specified companies. | ||
| View original record | X3646 To Wd/Ms. from EFC. c. Hy. EFC4/T21.11.22. X.3646 - RE THERMIONIC VALVES Would you kindly obtain up-to-date catalogues of Thermionic Valves, particularly those for rectifying, from (1) The… | ||
| Scan012 | Quotation for B.T.H. wireless valves from The British Thomson-Houston Company Limited. | ||
| View original record | QUOTATION No. Q.3506 X 3646 On Admiralty, War, India and Colonial Office Lists. THE BRITISH THOMSON-HOUSTON COMPANY LIMITED ELECTRICAL ENGINEERS AND MANUFACTURERS. HEAD OFFICE & WORKS: RUGBY.… | ||
| Scan013 | Enquiry to the Marconi Osram Valve Co. for a rectifying valve suitable for high voltages to measure ignition system impulses. | ||
| View original record | X.3646 c Roy EFC1/T. 30th November, 1922. The Marconi Osram Valve Co., Hammersmith, London, W.6. Dear Sirs, We have recently sent you an enquiry for rectifying valves and you have forwarded us a copy… | ||
| Scan014 | Continuation of a letter discussing the suitability of a valve for testing insulating materials. | ||
| View original record | Contd. -2- the same valve would suit is for testing insulating materials with a high applied D.C. potential, this being obtained with the aid of such a valve from a H.T A.C. transformer which we have,… | ||
| Scan015 | Enquiries made to source a specific rectifying valve. | ||
| View original record | X3646 To ROY/MS from EFC. EFC2/T8.12.22. X.3646 - RE RECTIFYING VALVE Our enquiries for a rectifying valve have not resulted in our obtaining particulars of the kind of valve we really require. The… | ||
| Scan016 | Copy of a letter from The British Thomson-Houston Company Limited regarding their inability to quote for wireless valves. | ||
| View original record | X.3646. COPY OF LETTER RECEIVED FROM:- THE BRITISH THOMSON-HOUSTON COMPANY LIMITED, RUGBY. 29th December, 1922. CONTRACT JFA/Q.3759. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Your ref.… | ||
| Scan017 | Letter from The Edison Swan Electric Co. Ltd. regarding a request for special wireless valves. | ||
| View original record | X3646 COPY OF LETTER RECEIVED FROM:- THE EDISON SWAN ELECTRIC CO. LTD. 123-5 QUEEN VICTORIA STREET, E.C.4. ROY16/MG8.12.22. Lamp Sales PL/W. 20th Dec. 1922. Messrs. Rolls-Royce Ltd., Nightingale Road,… | ||
| Scan018 | Letter from The M.O. Valve Co. Ltd. regarding the supply of rectifying valves for high voltage insulation testing. | ||
| View original record | X.3646. COPY OF LETTER FROM:- THE M.O. VALVE CO. LTD., OSRAM WORKS, BROOK GREEN, HAMMERSMITH, W.6. CFT/LWF. 21st December, 1922. Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Dear Sirs, In… | ||
| Scan019 | Postponing a meeting concerning an electrostatic voltmeter until a suitable rectifying valve has been decided upon. | ||
| View original record | To ROY/GEA. from EFC. X3646 EFC3/T25.1.23. X.4563 - ELECTROSTATIC VOLTMETER X3646 With reference to the letter from the Cambridge & Paul Instrument Co. of the 23rd. inst. suggesting a visit of their… | ||
| Scan020 | Follow-up letter to The Edison Swan Electric Co. Ltd. regarding the status of experiments on Wireless Valves. | ||
| View original record | Copy of Letter. February 16th.1923 Your Ref: Lamp Sales/PL/W Ref: ROY1/MG16.2.23 Messrs. The Edison Swan Electric Co.Ltd. 123-5 Queen Victoria Street LONDON E.C. 4 Dear Sirs:- Wireless Valves… | ||
| Scan021 | Letter from Edison Swan Electric Co. Ltd. regarding a delay in experiments concerning wireless valves. | ||
| View original record | X. 3646 By Appointment. By Appointment. The Edison Swan Electric Co. Ltd. EDISWAN EVERYTHING ELECTRICAL Telegrams: EDISWAN, LONDON Codes: WESTERN UNION A. B. C. (6th Edition) Telephones: CITY… | ||
| Scan022 | Quotation for type U.2 Rectifying Valves from The M.O. Valve Co. Ltd. | ||
| View original record | X.3646. To Wd. from EFC. EFC4/T10.5.23. X.3646 - RECTIFYING VALVES With reference to letter attached from The M.O. Valve Co.Ltd., ref. CFT/LEF of 21st December last, we should be glad if you would… | ||
| Scan023 | Quotation from The General Electric Co. Ltd. for a Type U.2 Rectifying Valve. | ||
| View original record | X 3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK The General Electric Co Ltd MANUFACTURERS OF EVERYTHING… | ||
| Scan024 | Continuation sheet of a letter from The General Electric Co., Ltd. | ||
| View original record | THE GENERAL ELECTRIC CO., LTD. CONTINUATION NO. 2. your reply which will be given our immediate attention. Yours faithfully, FOR AND ON BEHALF OF THE GENERAL ELECTRIC CO LTD [Signature: G F Boyce]… | ||
| Scan025 | Specification and quotation for an oscillograph, rectifying valve, and electrostatic voltmeter. | ||
| View original record | To R. from EFC. c. CJ. X3646 EFC3/T23.5.23. RE OSCILLOGRAPH, RECTIFYING VALVE AND ELECTROSTATIC VOLTMETER. X3985 X3646 X4563 OSCILLOGRAPH. After some amount of correspondence with the Cambridge & Paul… | ||
| Scan026 | Suitable voltage ranges for an instrument and seeking confirmation on oscillograph expenditure. | ||
| View original record | Contd. -2- EFC3/T23.5.23. It is thought that an intermediate instrument giving 0 to 5000v and 0 to 15,000 volts would be most generally suitable. Before proceeding further we should be glad to have… | ||
| Scan027 | Letter regarding the successful manufacturing of a rectifying Wireless Valve. | ||
| View original record | BY APPOINTMENT TO H.M. KING GEORGE V AND ALSO TO H.M. QUEEN ALEXANDRA X 3646 The Edison Swan Electric Co. Ltd. EDISWAN EVERYTHING ELECTRICAL All letters should be addressed to the Company and not to… | ||
| Scan028 | Inquiry to General Electric Co. for specific power rectifying valves for high voltage tests. | ||
| View original record | X3646. To Wd. from EFC. EFC3/T15.10.26. Would you please write to The General Electric Co. to enquire for further particulars of any power rectifying valves which they produce. We have their… | ||
| Scan029 | Technical note on the production testing of coil cases using a trembler ignition coil. | ||
| View original record | Contd. -22-- EFC3/T15.10.26. Department for the production testing of coil cases, in which case a trembler ignition coil would be used to supply the necessary high tension for rectification to the… | ||
| Scan030 | Correspondence with the General Electric Co. Ltd. about a new power rectifying valve. | ||
| View original record | X3646. EFC. from Wd. Wd6/NJ4.11.26. Upon receipt of EFC3/T15.10.26 we wrote the General Electric Co.Ltd. at their Birmingham address asking them for the desired information regarding Power Rectifying… | ||
| Scan031 | Required voltage for a rectifying valve and correcting a filament current specification. | ||
| View original record | To Wd. from EFC. X3646 EFC2/T6.11.26. RECTIFYING VALVE FOR HIGH TENSION D.C. INSULATION TESTS. With reference to your WD6/NJ4.11.26, I suppose we may presume from the G.E.C. letter that the valve… | ||
| Scan032 | The failure of the General Electric Co. to provide prices for two rectifying valves for high tension D.C. insulation tests. | ||
| View original record | EFC.from Wd. X3646 Wd5/NJ15.11.26. Rectifying Valve for High Tension D.C. Insulation Tests. Upon receipt of EFC2/T6.11.26, we wrote the General Electric Co. and are now in receipt of their reply, copy… | ||
| Scan033 | Letter from The General Electric Co. Ltd. regarding the unavailability of a specific rectifying valve and offering alternatives. | ||
| View original record | Copy of letter received from:- Messrs. The General Electric Co.Ltd., Magnet House, Kingsway, LONDON. W.C.2. WHW/FEH.506. 12th Nov. 1926. Messrs.Rolls-Royce Limited., D E R B Y Dear Sirs, We… | ||
| Scan034 | Correspondence querying inconsistent filament current specifications for a rectifying valve used in insulation tests. | ||
| View original record | X3646. To Wd. from EFC. EFC4/T16.11.26. RECTIFYING VALVE FOR HIGH TENSION D.C. INSULATION TESTS. Your Wd5/NJ15.11.26 to hand, together with attached copy of letter from the G.E.C. The M.R.I. valve… | ||
| Scan035 | Continuation page of a document correcting a quoted electrical resistance value. | ||
| View original record | -2- Contd. would have to be .12 ohm instead of 1.2 as quoted. EFC. [Watermark: DICKINSON BOND] | ||
| Scan036 | Communication regarding an order for a Rectifying Valve for High Tension D.C. Insulation Tests. | ||
| View original record | EFC.from Wd. X3646. Wd11/NJ29.11.26. Rectifying Valve for High Tension D.C. Insulation Tests. The remarks in yours EFC4/T16.11.26 were duly communicated to the General Electric Co. and I now attach… | ||
| Scan037 | Letter from The General Electric Co. Ltd. regarding the supply and pricing of an E.H.T. No.2 valve. | ||
| View original record | Copy of letter received from:- Messrs.The General Electric Co.Ltd., Magnet House, Kingsway, LONDON. W.C.2. WHW/FEH. 655. 27th November 1926. Messrs.Rolls-Royce Limited., D E R B Y. Dear Sirs,… | ||
| Scan038 | And ordering two specific Osram rectifying valves for high tension D.C. insulation tests. | ||
| View original record | To Wd. from EFC. X3646 EFC1/T8.12.26. RECTIFYING VALVE FOR H.T. D.C. INSULATION TESTS. Reference your Wd11/NJ29.11.26, we have considered this matter and made some tests, and we have decided from… | ||
| Scan039 | Letter to the General Electric Co. Ltd. regarding discrepancies and test results for a U.4 Rectifying Valve. | ||
| View original record | X3646. EFCL/T. 11th December, 1926. Messrs. The General Electric Co.Ltd., Magneto House, Kingsway, London, W.C.2. Dear Sirs, Re U.4 Rectifying Valve. The valve itself is marked 5.0 volts, but the… | ||
| Scan040 | Report page discussing the results of valve tests, including emission curves and recommended operational parameters. | ||
| View original record | EFCl/T. -2- Contd. maintained. A certain amount of recovery will be seen to have taken place. It will be seen that the curve of emission obtained on the first run down is much more like what one would… | ||
| Scan041 | Particulars and results of a test on an Osram U4 Rectifying Valve. | ||
| View original record | X3646. OSRAM U4 RECTIFYING VALVE. 11.12.26. Particulars and results of test :- R.M.S. A.C. supply volts 189 at 50 periods. Terminal filament volts maintained at 6.0. Observations of rectified delivery… | ||
| Scan042 | The arrival of rectifying valves and leaflets for H.T. D.C. insulation tests. | ||
| View original record | X3646. EFC. from Wd. Wd3/NJ15.12.26. Rectifying Valve for H.T. D.C. Insulation Tests. I understand that the one U.3 and one U.4 Osram Rectifying Valves called for by yours EFC1/T8.12.26 have arrived… | ||
| Scan043 | Letter from The General Electric Co. Ltd. regarding a U.4 type Rectifying valve. | ||
| View original record | CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK Y3646 Telephone (LONDON). REGENT. 7050 (50 LINES) Telegraphic Address:… | ||
| Scan044 | Continuation sheet of a letter from The General Electric Co., Ltd. regarding an attachment. | ||
| View original record | THE GENERAL ELECTRIC CO., LTD. -1- CONTINUATION No..................... and U.5 is attached hereto, Yours faithfully, FOR AND ON BEHALF OF The GENERAL ELECTRIC Co., Ltd. TR Anderson Asst. Manager,… | ||
| Scan045 | Letter to The General Electric Co. Ltd. concerning test results and the replacement of a U.4. rectifying valve. | ||
| View original record | X3646. c. Wd. c. Mailing. EFC2/T. 6th January, 1927. Messrs. The General Electric Co. Ltd., Magnet House, Kingsway, W.C.2. Dear Sirs, Re U.4. Rectifying Valve. We thank you for your letter… | ||
| Scan046 | Letter from The General Electric Co., Ltd. regarding a U.4. Rectifying Valve. | ||
| View original record | V3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK MANUFACTURERS OF EVERYTHING ELECTRICAL. HEAD OFFICE: Magnet… | ||
| Scan047 | Arranging the exchange of a U.4 rectifying valve. | ||
| View original record | X3646 To Wd. from EFC, EFC2/T11.1.27. RE U.4 RECTIFYING VALVE. (EFC2/T 6.1.27) In regard to our letter/to The G.E.C. regarding the above, we have now received word that they will be pleased to… | ||
| Scan048 | Letter from The General Electric Co. Ltd. regarding a complaint about a U.4 valve and enclosed characteristic curves. | ||
| View original record | X 3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. SEAL 1: ALLIED MANUFACTURERS INCORPORATED IN THE YEAR 1919 SEAL 2: NATIONAL SCHEME… | ||
| Scan049 | Continuation page of a letter from The General Electric Co., Ltd. | ||
| View original record | THE GENERAL ELECTRIC CO., LTD., -1- CONTINUATION No............ matter with our Technical representatives at the Works. Yours faithfully, FOR The GENERAL ELECTRIC Co., Ltd. [Signature] Asst. Manager,… | ||
| Scan050 | Letter to General Electric Co. Ltd. explaining test result differences for a U.4 valve, with accompanying circuit diagrams. | ||
| View original record | X3646 EFC3/T. 28th January, 1927. Messrs. The General Electric Co.Ltd., Magnet House, Kingsway, LONDON, W.C.2. Dear Sirs, We thank you for your letter ref. WHW/FEH of the 27th inst. with enclosed… | ||
| Scan051 | Page 2 of a letter discussing the performance and advertisement of a valve's delivery curve. | ||
| View original record | -2- Contd. It would be a mathematical result that in these circumstances the average delivery would be greater, corresponding as it would to a condenser of, to all intents and purposes, infinite… | ||
| Scan052 | Graph plotting three performance curves (A, B, C) for a U.I. Valve, with associated circuit diagrams for testing at 189 Volts AC. | ||
| View original record | U.I. VALVE WITH 189 VOLTS A.C. Circuit I Labels: 189V, 50~ Circuit II Labels: 189V, 50~ Left Text Block: Curve A taken Curve B taken Value of C Curve C received Right Text Block: Circuit I Circuit II… | ||
| Scan053 | Faint, handwritten archival document with a red ink stamp in the bottom right corner. | ||
| View original record | ROLLS-ROYCE LIMITED. PRINT ROOM 28 JAN. 1927 DERBY [Illegible handwritten text is visible on the page but cannot be deciphered] | ||
| Scan054 | Describing a portable rectifying unit for high voltage D.C. insulation testing. | ||
| View original record | To R. from EFC. c. BJ. E. FN. c. Ba. By. Hy. c. Wor. X3646 EFC1/T29.4.27. X3646 X1109 X3573 RECTIFYING UNIT FOR HIGH VOLTAGE D.C. TESTING OF INSULATION. We have made up such a rectifier unit which, in… | ||
| Scan055 | Page describing the operation of a valve for generating high D.C. voltage for insulation testing. | ||
| View original record | -2- Contd. thing (battery included) may be self-raised to a high D.C. potential. The valve readily permits the flow of positive electricity from plate to filament (i.e. negative electrons from… | ||
| Scan056 | Page describing the use and functionality of an apparatus for testing D.C. insulation resistance. | ||
| View original record | -3- Contd. the time to charge up will be considerably increased, but as the safe voltage of this condenser is smaller, the spark gap must be smaller. This condenser, however, acts as a very suitable… | ||
| Scan057 | The final development and application of an insulation testing apparatus for redmanol coil cases. | ||
| View original record | -4- Contd. limiting factor in the supply to the valve, and so far as we have used the apparatus at present the trembler coil satisfactorily supplies all H.T. requirements. The rectifying capacity of… | ||
| Scan058 | Circuit diagram for a High Tension Rectifying Unit used for H.T.D.C tests of insulation. | ||
| View original record | DIAGRAM OF HIGH TENSION RECTIFYING UNIT FOR H.T.D.C TESTS OF INSULATION. H.T. INPUT A.C. OR IMPULSIVE POSITIVE VOLTAGE. RECTIFYING VALVE. OUTPUT POSITIVE D.C. 6 VOLT BATTERY B- FIL: RES. F- LINK… | ||
| Scan059 | Blank page with a date stamp from Derby. | ||
| View original record | 29 APR 1927 DERBY | ||
| Scan060 | Connection diagram for high-tension direct current insulation tests using a trembler coil and rectifying valve. | ||
| View original record | INTERMITTENT POSITIVE H.T. MAIN. R.R. TREMBLER COIL. H.T + C - E SWITCH BATTERY H.T. RECTIFYING UNIT H.T ~ + B- F- D DIAGRAM OF CONNECTIONS FOR H.T.D.C. TESTS OF INSULATION WITH TREMBLER COIL & H.T.… | ||
| Scan061 | Two-page document with a blank left page and illegible text on the right, bearing a purple date stamp. | ||
| View original record | The main body of text on the right-hand page is illegible. A purple stamp in the bottom right corner reads: ROLLS-ROYCE LTD. PRINT ROOM 29 APR 1927 DERBY | ||
| Scan062 | Faulty G.E.C. rectifying valve, type U3, and the urgent request for its replacement. | ||
| View original record | Y3646 To ROY. from EFC. FC2/T7.10.27. RE RECTIFYING VALVE. Herewith we hand to you our G.E.C. rectifying valve type U3, which was obtained from the G.E.C. Company in December last. We should be… | ||
| Scan063 | Letter from a supplier regarding the return and replacement of a rectifying valve. | ||
| View original record | Y3646 THE GENERAL ELECTRIC CO.LTD., 34/35, Moor Street, BIRMINGHAM. W&V/H/466 Oct. 10th 1927. Messrs. Rolls-Royce Ltd., Nightingale Road, Derby. Dear Sirs, In reply to your letter of the 7th inst.… | ||
| Scan064 | Suitability of a replacement rectifying valve and potential solutions to prevent filament distortion. | ||
| View original record | X3646 To Roy. from EFC. EFC1/T11.10.27. RE RECTIFYING VALVE. With reference to the attached, we have just received the replacement valve. We do not propose to use this valve, however, until we receive… | ||
| Scan065 | Letter from General Electric Co. Ltd. responding to a query about a U.3. Rectifying Valve. | ||
| View original record | CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK The General Electric Co Ltd MANUFACTURERS OF EVERYTHING ELECTRICAL.… | ||
| Scan066 | Letter from The General Electric Co., Ltd. reporting on the test results of a valve under high voltage. | ||
| View original record | THE GENERAL ELECTRIC CO.. LTD. -2- CONTINUATION No................... On receipt of the Valve at the Works it was submitted to the usual standard test, and found to be quite satisfactory, although… | ||
| Scan067 | Compatibility and exchange of U.3 and E.H.T.2 rectifying valves. | ||
| View original record | X3646 To ROY. from EFC. EFCL/T28.10.27. RE U.3. AND E.H.T.2. RECTIFYING VALVES. We have seen the G.E.C. letter of the 24th inst. with reference to this matter. What we are uncertain about is as to… | ||
| Scan068 | Letter from G.E.C. Ltd. providing the characteristics for an EHT.No.2. Valve for Mr. H. Royce. | ||
| View original record | X3646 THE G.E.C. LTD., 34/35 MOOR STREET, BIRMINGHAM. Nov. 1st. 1927. W & V /HB.466. Messrs. Rolls-Royce Ltd., DERBY. FOR THE ATTENTION OF MR. H. ROYCE. Dear Sir, With further reference to our letter… | ||
| Scan069 | Letter from The General Electric Co. Ltd. concerning a blueprint for an E.H.T. No.2 Rectifying Valve. | ||
| View original record | CONTRACTORS TO H.M.ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. X3646 REGISTERED TRADE MARK The General Electric Co. Ltd. MANUFACTURERS OF EVERYTHING… | ||
| Scan070 | Full-size drawing of an E.H.T. No 2 Rectifying Valve. | ||
| View original record | NOTE. ALL JOINTS TO BE WELDED AF8 S8 AF5 F4 F3 A2 D 100 S9 S1 S11 AF6 AF7 A1 F1 S9 F2 AFG S1 S10 40 35 M.O.VALVE Co LTD BROOK GREEN HAMMERSMITH W6 E.H.T. No 2 RECTIFYING VALVE SCALE FULL SIZE… | ||
| Scan071 | Unsuitability of an expensive EHT.No.2 valve and proposing the use of a U3 rectifying valve as a replacement. | ||
| View original record | Y3646 To ROY. from EFC. EFC1/T24.11.27. We thank you for obtaining from the G.E. Co. their full size print of the EHT.No.2. valve. I am afraid it would be quite impossible to utilise this without… | ||
| Scan072 | U.3. type Rectifying Valve and the inability to return an old valve for credit. | ||
| View original record | X3646 EFC. ROY/JT19/HP1.12.27. In reply to your memo EFC1/T24.11.27 concerning U.3. type Rectifying Valve. We have to say that it will not be possible to have the old valve returned to us as we have… | ||
| Scan073 | Letter to the General Electric Co. regarding the supply and potential modification of a U.3. Rectifying Valve. | ||
| View original record | X3646 EFC2/MS. 19th. March 1930 The General Electric Co. Magnet House, Moor Street, Birmingham. Dear Sirs, U.3. Rectifying Valve. May we recall with you our correspondence with reference to a U.3.… | ||
| Scan074 | Typed letter discussing increased impedance, this is page two of the document. | ||
| View original record | X.3646 19th. March 1930 contd. (2) The increased impedence arising out of (a) would not matter for our purpose. We trust you will do what you can to help us in this matter. Yours faithfully, FOR… | ||
| Scan075 | Letter from The General Electric Co Ltd acknowledging receipt of a communication concerning a U.S. Osram Rectifying Valve. | ||
| View original record | X. 3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK THE GENERAL ELECTRIC CO LTD MANUFACTURERS OF EVERYTHING… | ||
| Scan076 | Letter from The General Electric Co. Ltd. concerning Osram U3 Rectifying Valves. | ||
| View original record | X.3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK The General Electric Co Ltd MANUFACTURERS OF EVERYTHING… | ||
| Scan077 | Letter to The General Electric Co. Ltd. regarding the specifications and procurement of a rectifying valve. | ||
| View original record | X.3646 EFC7/AD. 8th April, 1930. The General Electric Co.Ltd. 34/35 Moor St. Birmingham. Dear Sirs, Rectifying Valve. Further to our EFC2/MS. of the 19th ult. and yours ref. V/HB/466. of the 20th and… | ||
| Scan078 | Letter from The General Electric Co. Ltd. responding to an inquiry about the availability of Rectifying Valves. | ||
| View original record | X3646. CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK Head Office: MAGNET HOUSE. KINGSWAY, LONDON, W.C.2.… | ||
| Scan079 | Letter from The General Electric Co. Ltd. regarding the supply of U.3 Osram Valves and a recommendation for an alternative model. | ||
| View original record | X3646 CONTRACTORS TO H.M.ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK THE GENERAL ELECTRIC & ALLIED MANUFACTURERS ASSOCIATION… | ||
| Scan080 | Leaflet for an Osram Extra High Tension Rectifying Valve, Type E.H.T.2. | ||
| View original record | Leaflet O-V. 98 (April, 1928.) Osram Valves Extra High Tension Rectifying Valve. TYPE E.H.T.2. Type E.H.T.2 is a 2-electrode thermionic valve, specially designed to withstand high voltages. The valve… | ||
| Scan081 | Specification sheet for an Osram Extra High Tension Rectifying Valve, Type E.H T.2. | ||
| View original record | Osram Valves Extra High Tension Rectifying Valve. TYPE E.H T.2. Left Graph: ANODE CURRENT IN MILLIAMPERES ANODE VOLTS Ef. 5.5v Ef. 5.0v Ef. 4.5v Right Graph: FILAMENT EMISSION IN MILLIAMPERES FILAMENT… | ||
| Scan082 | Letter to The General Electric Co. Ltd. regarding a rectifying valve that is not suitable for their requirements. | ||
| View original record | X3646 EFC1/AD. 23rd April, 1930. The General Electric Co.Ltd. 34/35 Moor St. Birmingham. Dear Sirs, Rectifying Valve. We thank you for yours ref. V/HB/466. of the 12th inst. addressed to the… | ||
| Scan083 | Letter from The General Electric Co Ltd regarding the unsuitability of an Osram Rectifying Valve. | ||
| View original record | X3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. BIRMINGHAM Telephone CENTRAL 7944/51 8 LINES Telegraphic Address ELECTRICITY,… | ||
| Scan084 | Letter from The General Electric Co. Ltd. regarding the manufacture of a special rectifying valve. | ||
| View original record | X3646 CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. REGISTERED TRADE MARK BIRMINGHAM Telephone: CENTRAL 7944/51 8 LINES Telegraphic… | ||
| Scan085 | Sourcing a suitable rectifying valve for high tension insulation testing. | ||
| View original record | X3646. Roy. from EFC. EFCl/AD2.5.30. X,3646. RECTIFYING VALVE. For our high tension valve rectifying apparatus which we use for H.T. D.C. insulation testing, we have, as you know, made use of an Osram… | ||
| Scan086 | Unsuccessful attempt to source a suitable rectifying valve from two suppliers. | ||
| View original record | X3646 18.6.30. X.3646. RECTIFYING VALVE. As a result of our EFCl/AD2.5.30 Messrs. Edison Swan Electric Co. (incorporating The B.T.H. Co.) and Messrs. Philips Lamps Ltd. were both approached with a… | ||
| Scan087 | Procurement of a rectifying valve for insulation testing. | ||
| View original record | X3646. Roy. from EFC. EFC1/AD18.6.30. X.3646. RECTIFYING VALVE. FOR INSULATION TESTING. The information that you have received from The Edison Swan Electric Co. (incorporating the B.T.H. Co.) and… | ||
| Scan088 | Cross-reference note regarding a thermionic rectifying valve for H.T. | ||
| View original record | X.3646. 31.12.30. For further matter relating to Thermionic rectifying valve for H.T. see X.6094. | ||
| Scan089 | Testing and adoption of a Multiple Storage Battery as a potential replacement for the Exide battery. | ||
| View original record | X.3711. ROLLS-ROYCE, LIMITED 15 BROAD STREET NEW YORK TELEPHONE HANOVER 2155 Oct. 8, 1919 Oy17-FS/10/19 [STAMP: RECEIVED] EFC from Oy:- Copy Bn RE MULTIPLE STORAGE BATTERY 1. Herewith are details of… | ||
| Scan090 | Battery life test log sheet showing discharge data. | ||
| View original record | BATTERY LIFE TEST - DISCHARGE DATA SAMPLE #2735 - F2396 DATE OF DISCHARGE | NO. DAYS ON CHARGE | AMPERE HOURS | VOLTAGE MAX. | VOLTAGE MIN. | SPECIFIC GRAVITY MAX. | SPECIFIC GRAVITY MIN. |… | ||
| Scan091 | Chart from the Cadillac Motor Car Co. Electrical Dept. showing temperature, voltage and specific gravity during a 10 Amp discharge test. | ||
| View original record | TEMPERATURE F° SPECIFIC GRAVITY VOLTAGE TIME Hours. TEMPERATURE VOLTAGE SPECIFIC GRAVITY NIGHT STOP START Single Cell Readings taken on 3rd Cycle after assembling Positives with foreign Negatives.… | ||
| Scan092 | The comparative breakdown test of a Multiple Storage Battery against a standard Willard type. | ||
| View original record | "Report of Test of Multiple Storage Batteries." Office of Vice-Pres. Received March 25, 1918. Answered. Mr. A.B.C. Hardy. We submit herewith Mr. Farr's report of test on Multiple Storage Battery. This… | ||
| Scan093 | Test record comparing two multiple storage batteries against two new Willard batteries. | ||
| View original record | Sheet #1 TEST RECORD OF TWO MULTIPLE STORAGE BATTERIES AGAINST TWO NEW WILLARD BATTERIES. Multiple battery #5445 will be known as number three, and the other Multiple as number four, (we cannot… | ||
| Scan094 | Battery performance tests, comparing complete starts and failures for four different batteries. | ||
| View original record | Sheet #2 COMPLETE STARTS MARKED X FAILURE TO START MARKED - March 11, 1918. Charging Eight Amperes, Starting Six Times per Hour Fifteen Seconds For Each Start. BATTERY NO.1 BATTERY NO.2 BATTERY NO.3… | ||
| Scan095 | Log of battery performance tests, recording starts, hydrometer readings, and voltage measurements. | ||
| View original record | Sheet #3 March 13, 1918. The batteries were then used for sixteen starts, the discharge being 140-150 amp. per starts, this rise in the amperage used by starting motor due to the fact that the spark… | ||
| Scan096 | Log of battery performance tests conducted over several days, recording voltage and hydrometer readings. | ||
| View original record | Sheet #4 March 18th 1918. Batteries were put on charge at 10 amp discharging 120 amp per start of twenty seconds. After fifty three starts were made at seven minutes intervals, readingswere as… | ||
| Scan097 | Life breakdown test performed on a sample storage battery from the Cadillac Motor Car Company. | ||
| View original record | REPORT ON SAMPLE STORAGE BATTERY FOR LIFE BREAKDOWN TEST FROM THE CADILLAC MOTOR CAR COMPANY, DETROIT, MICH. This storage battery was subjected to a life test which began October 1, 1917 and ended… | ||
| Scan098 | The condition and performance testing of a battery, comparing it favorably to a Cadillac battery. | ||
| View original record | Page 2 The jar was broken when the elements were removed and it was noted that the jar used in this battery is the same Exide jar as used on our present battery. The cover was evidently from a smaller… | ||
| Scan099 | Letter requesting information on the 'Multiple Storage Battery' for potential use in the States. | ||
| View original record | x 3711 COPY Bnl/W271019. 27th October 1919. Major T.P. Searight, Messrs. Hobson Ltd., 29, Vauxhall Bridge Road, London, S.W. My dear Major Searight, RE MULTIPLE STORAGE BATTERY Mr. Olley told me that… | ||
| Scan100 | Letter from H.M. Hobson, Ltd. to Colonel Barrington regarding a new type of Multiple Storage Battery with a special plate construction. | ||
| View original record | x 3711 COPY. TPS/MW H.M. HOBSON, LTD., 28& 29 VAUXHALL BRIDGE RD. LONDON, S.W.1. 29th October, 1919. Dear Colonel Barrington:- Re Multiple Storage Battery. I am glad that you have heard from Mr. Olley… | ||
| Scan101 | Letter discussing the import and testing of new battery plates from the United States, with enclosed confidential reports from Oakland Co. and Cadillac Co. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. 2 Cont'd make for replacement in the United States, a consignment of which is now at Southampton Docks awaiting Customs clearance. I could go more… | ||
| Scan102 | Concluding page of a letter discussing a battery for use in the States and a potential meeting. | ||
| View original record | R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. -3- Contd. Perhaps after test and examination of the principle you could come to a decision as to whether it would be a desirable battery for your… | ||
| Scan103 | Arranging the loan of a multiple storage battery from Messrs. Hobson for testing. | ||
| View original record | R.R. 235 B 200 T) (S.F. 673, 28-5-19) G. 2376. X 3711 Bn8/W181219. To Ck. from Bn. RE MULTIPLE STORAGE BATTERY. With reference to Oy17-F8/10/19, I have arranged with Messrs. Hobson for the loan of a… | ||
| Scan104 | Forwarding of two 6 volt multiple storage batteries from Messrs. Hobson. | ||
| View original record | R.R. 235 B (200 T) (RF. 673. 22-5-19 c). 5576. X 3/11 To Ck. from Bn. Bn2/W23.12.19. RE MULTIPLE STORAGE BATTERIES. I have heard from Messrs. Hobson to the effect that they are forwarding two… | ||
| Scan105 | Instructions regarding the receipt of two Multiple storage batteries in an uncharged condition. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X 3711 56 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark. 31/12/1919 Order No: - Customer's No.: - X.3711 Multiple Storage Batteries We have received… | ||
| Scan106 | Instructions for the operation and charging of a multiple storage battery. | ||
| View original record | X.3411. X.3711 - MULTIPLE STORAGE BATTERY INSTRUCTIONS. WITH BATTERIES. 1. To put this battery in operation unscrew and remove vent plug in centre of each cell and fill each cell half inch above top… | ||
| Scan107 | Design sketch for a brass terminal suitable for multiple storage batteries. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X.3711 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mc Clark Date: 14/1/20 Order No: X 3711 Customer's No.: - Terminals for Multiple Storage Batts. The… | ||
| Scan108 | Test results for multiple storage batteries to be sent to Messrs. Hobson. | ||
| View original record | X.3711 EFC/AT6.5.20. X.3/11.-MULTIPLE STORAGE BATTERIES. The result of tests on the above batteries should be forwarded to Messrs. Hobson. EFC. | ||
| Scan109 | Routine treatment and testing of a car battery. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP 180865 X. 3711 10.5.20. ROUTINE TREATMENT OF CAR LIGHTING AND STARTING BATTERIES. FORM A. Date:- 10.5.20 Battery under treatment :- Multiple Storage Rated capacity… | ||
| Scan110 | Record of battery charging and discharging tests, including measurements of current, time, and weight. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) Mc 180865 -2- (6) Second charge :- Date:- Amperes from to hours. Amp.hours. 10 4.0 8.0 4 40 28.5.20 10 8.0 12.0 4 40 29.5.20 10 8.0 5.30 9.5 95 31.5.20 10 8.0 8.0 12… | ||
| Scan111 | Cell densities and charge/discharge test results. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) M.P. 180865 -3- Contd. (11) Cell densities :- (1) 11.30 (4) 1120 (2) 11.30 (5) 1120 (3) 1120 (6) 1120 (12) Third charge equivalent to average current of 10 amperes for… | ||
| Scan112 | Cell densities and charge equivalents from battery tests. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) M/P 180865 -4- Date:- (14) Cell densities. (1) 1140 (4) 1120 (2) 1130 (5) 1120 (3) 1120 (6) 1120 15.6.20 (15) Fourth charge equivalent to average current of 10 amperes… | ||
| Scan113 | Extract about receiving a sample Multiple Storage battery from America for immediate testing. | ||
| View original record | X.3711. Extract from EFC1/T18.5.20. X.664. BATTERIES. X.3711. MULTIPLE STORAGE BATTERIES. We have received from America a sample Multiple Storage battery which appears from all accounts to be very… | ||
| Scan114 | Specifying the weight of a Multiple Storage Battery. | ||
| View original record | X.3711. EFC. 28.6.20. X.3711 - MULTIFLE STORAGE BATTERY. The weight of Multiple Storage battery = 93.75 lbs. (i.e. for one 6 volt battery). LF. | ||
| Scan115 | List of planned or ongoing experimental work related to batteries. | ||
| View original record | To R. from EFC. c. CJ. c. Wor. c. Bn. X 3711 EFC5/T24.7.20. X. 664. - BATTERIES. The following is a list of experimental work on batteries which we are now carrying out, or hope sooner or later to… | ||
| Scan116 | Instruction sheet listing the good and bad points of a multiple storage battery. | ||
| View original record | RR 300 (120B) (SF 349 24-1-19) MP 200552 X.3711 91100 ROLLS-ROYCE LIMITED. INSTRUCTIONS. I To E.H.C. Date 7/8/20. 19 Order No. X.3711. Customer's No. I/13164. Re. Good & Bad points of Multiple Storage… | ||
| Scan117 | Instructions noting difficulty replacing a faulty battery cell and the absence of cable connectors. | ||
| View original record | RR 300 (120B) (SF 349 24-1-19) MP 200552 91101 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No Customer's No. HB 115 Re making it difficult to replace a faulty cell. No Cable Connectors were sent… | ||
| Scan118 | Confidential handling of test results for a multiple storage battery loaned from Messrs. Hobson. | ||
| View original record | R.R. 238a (100 T) (S.H. 89, 23-7-20) G. 2789 X 3711 EFC. Bn5/W20. 8. 20 X.3711 - MULTIPLE STORAGE BATTERY. With reference to your EFC1/T20.8.20, we asked Messrs. Hobson to loan us these Batteries at… | ||
| Scan119 | Test report on the Multiple Storage Type C.A.618 battery, detailing its performance and design flaws. | ||
| View original record | X-3711 To Bm from EFC. c. to R. c. to CJ c. to EWT for U.S.A. COPY. EFCL/T20.8.20. X.3711 - MULTIPLE STORAGE TYPE C.A.618 BATTERY. This battery was received on 31st. Dec. last as two separate 6 volt… | ||
| Scan120 | Battery discharge performance and comparison tests. | ||
| View original record | Contd. -2- EFCl/T20.8.20. densities adjusted, and again discharged at the same rate to the same terminal voltage when it gave 110 ampere-hours. Thirdly, it was suitably recharged with about 200… | ||
| Scan121 | Report page detailing the performance analysis of a battery, including its capacity, weight, size, and construction. | ||
| View original record | Contd. -3- EFC1/T20.8.20. corresponding to about 10.7 volts on the terminals at 9.2 amperes discharge, the time to attain this point was 14.9 hours, showing a capacity at this approximate rate of… | ||
| Scan122 | Progress of battery life tests and whether to forward results to Messrs. Hobson. | ||
| View original record | Contd. -4- EFC1/120.8.20. better than others, but it will be necessary to see how the battery behaves in respect to life tests. Our vibration rig for batteries is not yet ready but this particular… | ||
| Scan123 | Letter to Major T.P. Searight of Messrs. Hobson, enclosing a report on C.A.618 batteries received on loan. | ||
| View original record | X 3711 EFC2/T. Private. 24th August, 1920. Major T.P. Searight, Messrs. Hobson, 29, Vauxhall Bridge Road, London, S.W.1. Dear Sir, With reference to the Multiple Storage, type C.A.618 batteries we… | ||
| Scan124 | Letter from H.M. Hobson, Ltd. regarding a preliminary report on Multiple Storage Batteries. | ||
| View original record | X.374 CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. TELEPHONE: VICTORIA 4670 (3 LINES.) TELEGRAMS: 'ASSEMBLAGE, LONDON'.… | ||
| Scan125 | Page two of a letter to Mr. E. Fowler Clark concerning 12-volt units for comparative tests. | ||
| View original record | Mr. E. Fowler Clark. Date 26. 8. 20. Page 2 units forming 12 volts, as we thought this might be more convenient for your comparative tests. I remain, Yours faithfully, H.P. Searight | ||
| Scan126 | Appropriate method for communicating results concerning multiple storage batteries. | ||
| View original record | R.R. 38s - (100 T) (S.H. 89. 2-7-20) G. 2709 X.3711 Bnl/W27.8.20 STAMP: AUG. 27 RECEIVED X-3711 Re Multiple Storage Batteries. ------------------- With reference to Major Searight's letter of August… | ||
| Scan127 | Letter to Major T.P. Searight of H.M. Hobson Ltd. regarding forwarding results for Multiple Storage Batteries. | ||
| View original record | .X.3711 EFC3/T. 27th August, 1920. Major T.P. Searight, C/o Messrs. H.M. Hobson,Ltd., 27 & 29 Vauxhall Bridge Road, London, S.W.1 Dear Sir, We have your letter of Aug. 26th, regarding Multiple Storage… | ||
| Scan128 | Extract report on Battery No. 26, concluding it is unsuitable due to its weight. | ||
| View original record | X.3711. Extract from EFC3/T6.10.20. X.664. BATTERIES. X.3711. Battery No.26. Multiple Storage. Results for this battery were completely reported in EFC1/T20.8.20, adressed to Bn. R. CJ., and EWT. for… | ||
| Scan129 | Letter from H.M. Hobson, Ltd. requesting further news of tests on a Multiple Storage Battery type C.A.618. | ||
| View original record | X.3711 CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. TELEPHONE: VICTORIA 4670. (3 LINES.) TELEGRAMS: "ASSEMBLAGE, LONDON." PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS.… | ||
| Scan130 | Letter to H.M. Hobson Ltd. concerning delays in vibration testing for a Multiple Storage C.A.618 Battery. | ||
| View original record | X.3711 c. Bn. EFC5/T. 9th June, 1921. Messrs. H.M. Hobson Ltd., 27 & 29, Vauxhall Bridge Road, London, S.W.1. Dear Sirs, X 3711 Multiple Storage C.A.618 Battery. Your letter of the 2nd. inst with… | ||
| Scan131 | Letter from H.M. Hobson, Ltd. acknowledging Rolls-Royce's letter regarding a Multiple Storage Battery and noting a delay in their vibration rig completion. | ||
| View original record | X. 3711 CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. TELEPHONE: VICTORIA 4670. (3 LINES.) TELEGRAMS: "ASSEMBLAGE, LONDON".… | ||
| Scan132 | Letter from a battery supplier inquiring about the progress of a long-running battery test. | ||
| View original record | X.3711 MULTIPLE STORAGE BATTERY CORPORATION ESTABLISHED 1908 CABLE ADDRESS MULTIBAT, N.Y. 350 MADISON AVENUE NEW YORK CITY PLANT JAMAICA, LONG ISLAND August 25, 1921. Rolls-Royce, Ltd., Nightingale… | ||
| Scan133 | Letter to the Multiple Storage Battery Corporation regarding a delay in the vibration test of their battery. | ||
| View original record | Your ref: JB:F. EFC1/T. X.3711 6th Sept., 1921. The Multiple Storage Battery Corporation, 350 Madison Avenue, New York City. Dear Sirs, X.3711 Re Multiple Storage Battery. We thank you for your letter… | ||
| Scan134 | Letter from a battery supplier regarding a vibrating test machine and battery maintenance advice. | ||
| View original record | X.3711. MULTIPLE STORAGE BATTERY CORPORATION ESTABLISHED 1908 350 MADISON AVENUE NEW YORK CITY CABLE ADDRESS MULTIBAT, N.Y. PLANT JAMAICA, LONG ISLAND September 30, 1931. Rolls-Royce Limited,… | ||
| Scan135 | Letter from Multiple Storage Battery Corporation chasing for the results of a battery test. | ||
| View original record | X.3711. MULTIPLE STORAGE BATTERY CORPORATION ESTABLISHED 1908 350 MADISON AVENUE NEW YORK CITY CABLE ADDRESS MULTIBAT, N.Y. PLANT JAMAICA, LONG ISLAND October 24, 1931. Rolls Royce Ltd., Nightingale… | ||
| Scan136 | Letter to H.M. Hobson Ltd. discussing the unsuitability and further testing of a Multiple Storage Battery. | ||
| View original record | X 3711 R.R. 985a (40 T) (S H. 986, 19-2-21) G. 3018 EFC1/T. 11th November, 1921. Messrs. H.M. Hobson Ltd., 27 & 29 Vauxhall Bridge Road, London, S.W.1. For the attention of Major Searight. Dear Sirs,… | ||
| Scan137 | Letter discussing battery vibration tests and the suitability of a battery from the Multiple Storage Co. | ||
| View original record | R.F. 583a (50 T) (S H. 986. 10-8-21) G. 3028 EFCL/T. -2- Contd. As regards the vibration rig, there was considerable delay in getting this going, and up to the time the Multiple Storage Co. suggested… | ||
| Scan138 | Letter from H.M. Hobson, Ltd. acknowledging a letter regarding a Multiple Storage Battery C.A. 618. | ||
| View original record | X. 3711. CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. TELEPHONE: VICTORIA 4670. (3 LINES). TELEGRAMS: "ASSEMBLAGE, LONDON".… | ||
| Scan139 | Letter from H.M. Hobson Ltd. regarding further tests on a Multiple Storage Battery. | ||
| View original record | X. 3711 CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. TELEPHONE: VICTORIA 4670. TELEGRAMS: "ASSEMBLAGE, LONDON". PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. H.M. HOBSON, LTD.… | ||
| Scan140 | Letter from Multiple Storage Battery Corpn. to H.M. Hobson Ltd. regarding battery testing and specifications. | ||
| View original record | X3711 Copy of a letter from Multiple Storage Battery Corpn. --------------------------------------- 350, Madison Avenue, New York City. November 25th, 1921. Messrs. H.M. Hobson Ltd., London.… | ||
| Scan141 | Page 2 of a letter from Jasper Bayne regarding battery testing and the 'Rolls-Royce Multiple' battery. | ||
| View original record | -2- service and less trouble than any other battery and we have proved this to the General Motors Co. It would seem that the Rolls-Royce people would be eager to obtain such a battery but they seem to… | ||
| Scan142 | Letter to H.M. Hobson, Ltd. regarding further tests and examination of a multiple storage battery. | ||
| View original record | R.R. 132A (100 T) (S.H. 798, 10-12-20) G. 8947 X,3711. EFC1/LG. 19th. Dec. 1921. Messrs. H.M. Hobson, Ltd., 27 & 29, Vauxhall Bridge Rd., London S.W.1. Dear Sirs, RE. MULTIPLE STORAGE BATTERY. We have… | ||
| Scan143 | Letter from H.M. Hobson, Ltd. acknowledging correspondence regarding a Multiple Storage Battery and awaiting test results. | ||
| View original record | X.3711. CONTRACTORS TO BRITISH AND ALLIED GOVERNMENTS. PLEASE ADDRESS ALL COMMUNICATIONS TO THE FIRM, NOT TO INDIVIDUALS. TELEPHONE: VICTORIA 4670. (3 LINES). TELEGRAMS: "ASSEMBLAGE, LONDON."… | ||
| Scan144 | Requesting the return of two six-volt multiple storage battery units for testing and comparison. | ||
| View original record | X3711 To Thn. from EFC. EFCl/T29.10.24. RE MULTIPLE STORAGE BATTERY. If it is decided to retain the new Western Elec. Co's radio set at the Foremen's Club, or if it will be some considerable period… | ||
| Scan145 | The return of a multiple storage battery loaned for a radio set. | ||
| View original record | To Hm. from EFC. X 3711 EFC1/T15.12.24. X. 3711. RE MULTIPLE STORAGE BATTERY LOANED FOR RADIO SET. I have taken an opportunity which presented itself of this morning getting this battery returned to… | ||
| Scan146 | Instructions and results for tests on multiple storage batteries. | ||
| View original record | RR 300 (20 Bks.) (SK 354 5-12-22 MP 264049 X.3711. 108638 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.J.B. 31-12-24 19 Order No.: Customer's No.: X3711 Re: J.B. 81. Re Tests on Multiple Storage Battery.… | ||
| Scan147 | Instructions detailing the results of a battery amperage test. | ||
| View original record | RR 300 (20 Bks.) (SK 354 5-12-22 MP 264049) 108639 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II To Order No. Customer's No. Re J.B.81. Initial amperes = 110.0 Amperes after 20 min = 107.0 By the above… | ||
| Scan148 | The failure of a cell in a multiple storage battery after 6.5 years of use. | ||
| View original record | EFC. JC.29. X.3711 4.6.26. RE FAILURE OF CELL OF MULTIPLE STORAGE BATTERY. This battery has now been in use approximately 6½ years and has only just had one cell fail by shorting. It has always given… | ||
| Scan149 | 'Plates and Separators' to be sent to Mr. G.R.N. Minchin. | ||
| View original record | B/BR. C. to My/Mt. C. to My/WFN. C. to EPC. X 3711 Wd/Dn7/EH11.6.26. Please despatch by post or passenger train to Mr. G.R.N. Minchin, c/o Messrs. Peto & Radford, 50 Grosvenor Gardens, London. S.W.1.… | ||
| Scan150 | Cover letter to Mr. Minchin regarding despatched plates from a Multiple Storage cell and an attached report. | ||
| View original record | X3711 EFC2/T12.6.26. 12th June, 1926. Mr. G.R.N.Minchin, Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, We have duly despatched to you the plates which you selected… | ||
| Scan151 | Letter from an accumulator manufacturer acknowledging receipt of plates and separators from an American cell for examination and report. | ||
| View original record | X3711 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667, 5 LINES PRIVATE BRANCH EXCHANGE TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889. PETO & RADFORD… | ||
| Scan152 | Authorizing the despatch of American-made cell plates and separators for inspection. | ||
| View original record | X3911 EFC/T/10.6.26. To Wd. from EFC. c. Despatch Stores. We are sending into the Stores a parcel containing some representative plates and separators taken from a cell of American make. These are to… | ||
| Scan153 | Letter from accumulator manufacturer Peto & Radford concerning battery plate condition, new designs, and a specific battery for a chassis. | ||
| View original record | X3711 TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. Works, Dagenham Dock, Essex TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889 PETO &… | ||
| Scan154 | Failure analysis report on a multiple storage cell battery. | ||
| View original record | ROLLS-ROYCE, LTD. INSTRUCTIONS. To: E & C Date: 3-2-28 Order No. SP A.1. Customer's No: X 3711 Failure of Multiple Storage Cell On opening up this cell the positive plates had lost a lot of paste, the… | ||
| Scan155 | Low rate discharge test graph for a multiple storage battery. | ||
| View original record | HTE X X 37/11 Low rate discharge test of Multiple Storage battery 29.12.21 Amps per div = .285 Average Amperes = 9.55 Amperes Hours = 129.0 2/6 REGD TRADE MARK MEGGER | ||
| Scan156 | 'Megger' chart recording results from a test on two multiple storage units in series. | ||
| View original record | 26 2 MULTIPLE STORAGE IN SERIES Amps per div = .293 Average amperes = 9.9 Ampere hours = 127.9 | ||
| Scan157 | Graph chart recording test data for a 'Multiple Storage' unit. | ||
| View original record | 19-12-24 26. Multiple Storage C.A. 6/8. 187 lbs. 180 a.h. Average amperes = 6.42 Hours = 26.0 Ampere hours = 163.0 .872 1.80v REGD TRADE MARK - MEGGER | ||
| Scan158 | Electrical experimental record sheet for a Multiple Storage Battery, model CA.618. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. XNo:- 3711 Multiple Storage Battery CA.618. (26) Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading Finish. | Miles covered. |… | ||
| Scan159 | Electrical experimental record sheet for a Multiple Storage Battery, CA. 618, Page 2. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No:- 3711 Multiple Storage Battery CA. 618. (26) Page 2. Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading Finish. | Miles… | ||