Rolls-Royce Archives
| Identifier | Entry | ||
| img001 | Letter requesting clarification on R.A.E. Report No. E.1701 concerning Condor III engine performance tests. | ||
| View original record | X4580 Expl: Dept: 21st. Jan. 1926. Engine Research Section, Royal Aircraft Est., South Farnboro', Hants. Dear Mr. Wood, We are very interested in the R.A.E. Report No. E.1701 on Performance of Condor… | ||
| img002 | Request for black record paper for an R.A.E. Electrical engine Indicator. | ||
| View original record | X4580 To Wd/Ms. from Hs/Rn. Hs/Rnl/LG19.4.26. RECORD PAPER. R. A. E. ELECTRICAL INDICATOR. Will you please obtain for us from Messrs. J.J. Griffin, Kingsway - sufficient black record paper for taking… | ||
| img003 | Disposal instructions for an obsolete Jaeger Speedometer No. 123031. | ||
| View original record | B/BR. c. to Hy/Rb. c. to Hs. X4665 WD/MS1/P2./6.26. The Experimental Dept. have in stock an obsolete Jaeger Speedometer No. 123031. B.J. has agreed to the sale of this (his reference :- RJ3/E1/6/26)… | ||
| img004 | Letter to Societe Anonyme Adolphe Saurer regarding the Farnboro' Electric Indicator. | ||
| View original record | X4580 Expl: Dept: Hs/Rm7/LG. 27th. Sept. 1926. The Societe Anonyme Adolphe Saurer, Arbon, Suisse. Dear Sirs, With reference to your letter of the 24th. inst. ref. E/jd. We have used the Farnboro'… | ||
| img005 | Suggesting a new method for mounting the revolution indicator drive pinion on a camshaft. | ||
| View original record | CERTIFICATE OF INSPECTION ROLLS-ROYCE ENGINES AND SPARES To RG. from E. YS. c. to BJ. HS. BY. E1/M29.11.26. RR. F.10. REVOLUTION INDICATOR DRIVE. X.3804 X.4003 X.1807 In our memo E2/M26.11.26., we… | ||
| img006 | Request to arrange an official order for a Smith's Dual Drive Revolution Counter. | ||
| View original record | X1350 To Wd/GEA. from Hs. c. to Ag. HS2/LG29.3.27. SMITH'S DUAL DRIVE REV. COUNTER. With reference to Ag4/LW28.3.27 attached. Will you kindly arrange to send an official order to Messrs. S. Smith &… | ||
| img007 | Decision to delete Smith's Dual Rev. Counter Gearbox from the Karachi Machine and the process for its return. | ||
| View original record | To Hs. from Lp. c. to Hx. Hs. X1350 Lpl/Av/D2.4.27. Re: Smith's Dual Rev. Counter Gearbox. You have no doubt heard from Rx that it has been decided to delete this gearbox from the Karachi Machine so… | ||
| img008 | Return of a loaned Smith's Dual Rev. Counter Gearbox to the Stores. | ||
| View original record | To Wd. from Hs/TMW. c. to Mt. (Stores). c. to Lp. c. to RG. X1350 LG Hs/TMW1/4.4.27. We are sending into the Stores :- 1 Smith's Dual Rev. Counter Gearbox. Will you please have this returned to the… | ||
| img009 | Letter to S. Smith & Son regarding the return of a loaned Dual Rev. Counter Gearbox for trial purposes. | ||
| View original record | X1350 Hs/TMW2/LG. Expl: Dept: 4th. April 1927. Messrs. S. Smith & Son, Cricklewood. Dear Sirs, We are returning to you under separate cover - 1 Dual Rev. Counter Gearbox which has been loaned to us… | ||
| img010 | R.P.M. Indicator Catalogue from Jaeger Ltd. | ||
| View original record | X4665 To Roy. from Hs/Rm. Hs/Rn10/LG15. 7. 27. Will you please obtain from Messrs. Jaeger Ltd., Willesden, London - their R.P.M. Indicator Catalogue. Hs/Rm. | ||
| img011 | Potential adoption of Jaeger speedometers, referencing their use by competitors and notable figures. | ||
| View original record | S/W. (Copy to Hs). X4665 Sg5/W/26.1.28. Re: Speedometers. We have recently been approached by the Jaeger Company with a view to the adoption of their Speedometers. We understand that the Bentley… | ||
| img012 | Reliability and noise issues of Jaeger speedometers compared to the A.T. speedometer. | ||
| View original record | To BY. from Hs. c. to Sg. X4665 HS2/LG27.1.28. SPEEDOMETERS. X4386 With reference to Sg5/W26.1.28. We have in the past tested Jaeger speedometers. One objection to them was that they were noisy; the… | ||
| img013 | Letter from Jaeger requesting vehicle specifications to supply and test a new speedometer and clock for the Experimental Department. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY [Handwritten: +4665] JAEGER ED. JAEGER (LONDON) LTD. SPEEDOMETERS AND CLOCKS ST LEONARDS ROAD, WILLESDEN JUNCTION, LONDON, N.W.10. AGENCIES IN ALL… | ||
| img014 | Calculating car speeds in MPH for different axle ratios, based on speedometer and road wheel revolutions. | ||
| View original record | Speedometer Revs. .3511 of propeller shaft revs. At. 600 Speedometer Revs/Min. Car Speeds are 17 x 52 Axle ratio 33. M.P.H. 16 x 52 Axle " 31. M.P.H 15 x 52 Axle " 29.3 M.P.H Road wheel revs/mile with… | ||
| img015 | Testing of a sample pair of Jaeger speedometers as a less expensive alternative. | ||
| View original record | S/W. Hs. (Copy to BH). X 4665 Sg4/M/8.3.28. Re: Jaeger Speedometers. Referring to Hs2/LG27.1.28. and my conversation with you yesterday when I shewed you the Jaeger people's letter asking for… | ||
| img016 | Letter to ED. Jaeger (London) Ltd. with specifications for speedometer instruments and flexible drives. | ||
| View original record | X4665 Expl: Dept: Hs2/LG. 12th. Mar. 1928. Messrs. ED. Jaeger (London) Ltd., St. Leonards Ad., Willesden Junction, London N.W.10. Dear Sirs, With reference to your HRB/DAW of the 9th.inst. The… | ||
| img017 | Short memo regarding Jaeger Speedometers and an attached letter. | ||
| View original record | X4665 S/W. Hs. Sg26/M/12.3.28. Re: Jaeger Speedometers. Referring to their letter of the 9th instant and their letter to us enclosing copy, I attach copy of letter today sent them which I think will… | ||
| img018 | Correspondence with Ed. Jaeger (London) Ltd. clarifying a request for a 'sample pair of instruments' for testing. | ||
| View original record | Sg25/M/12328. 12th March, 1928. H.R. Buckland, Esq; Messrs Ed. Jaeger (London) Ltd., St. Leonards Road, Willesden Junction, N.W.10. Dear Sir, We are in receipt of your letter of the 9th instant,… | ||
| img019 | Letter from Jaeger confirming the dispatch of two sample speedometers for testing, clarifying a misunderstanding about the order. | ||
| View original record | X4665 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. JAEGER ED. JAEGER (LONDON) LTD. SPEEDOMETERS AND CLOCKS. ST LEONARDS ROAD, WILLESDEN JUNCTION, LONDON, N.W.10. AGENCIES IN ALL COUNTRIES.… | ||
| img020 | Arrangement with the Jaeger Company for the purchase and testing of two speedometers. | ||
| View original record | S/W. (stamped and crossed out) {Copy to Hs} (handwritten) DY. (stamped and crossed out) X4665 (handwritten) Sg4/W/15.3.28. Re: Jaeger Speedometers. Arrangements have been made between Hs. BY. and… | ||
| img021 | Follow-up letter regarding the status of two Jaeger speedometers sent for testing. | ||
| View original record | S/W. Hs. (Copy to [REDACTED]) 44665 Sg11/M/15.6.28. Re: Jaeger Speedometers. As it is now about three months since the arrangements were made for you to have two of the above for test, I should be… | ||
| img022 | Test report on a Jaeger Speedometer Type 6183, detailing its accuracy at various RPMs. | ||
| View original record | X.4665 12.7.28. JAEGER SPEEDOMETER TYPE 6183. No. 516501. Reading is unaffected by temperature. Reading is either 21.0 or 22.0 (won't stay between) at 600 r.p.m. Reading is consistently 43.9 m.p.h. at… | ||
| img023 | The testing and analysis of a Jaeger Speedometer, type 6193. | ||
| View original record | X4665 24.7.28. JAEGER SPEEDOMETER TYPE 6193. NO. 513402. It may be assumed that, as in the case of instrument No.516501, the reading is unaffected by temperature. In order to check revolutions per… | ||
| img024 | Letter to Jaeger Ltd. requesting particulars for a revolution indicator with a specific speed range. | ||
| View original record | X4665 Hs5/LG. Expl: Dept: 3rd. Oct. 1928. Messrs. Jaeger Ltd., St. Leonards Rd., Willesden Junction, London N.W.10 Dear Sirs, Will you please let us have particulars of your Revolution indicator. We… | ||
| img025 | Letter from Ed. Jaeger (London) Ltd. in response to an enquiry for a Revolution Indicator for experimental use. | ||
| View original record | X4665 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. [Logo: ASSOCIATED BRITISH MACHINE TOOL MAKERS LIMITED] DIRECTORS: W. HENDERSON CLELAND. BRITISH. A. GORDON SMITH. BRITISH. G. DELAGE. FRENCH.… | ||
| img026 | Letter to Messrs. Jaeger enquiring about the price of a Revolution Counter No. 6553. | ||
| View original record | X4665 Hs/Anl3/LG Expl: Dept: 17th. Oct. 1928. Messrs. Jaeger, St. Leonards Rd., Willesden Junction, London N.W.10. Dear Sirs, Will you please let us know the price of your Revolution Counter No.6553… | ||
| img027 | Letter from Ed. Jaeger (London) Ltd. regarding a Revolution Indicator supplied to The Solex Carburetter Co. | ||
| View original record | 4665 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. JAEGER ED. JAEGER (LONDON) LTD. SPEEDOMETERS AND CLOCKS. DIRECTORS: W.HENDERSON CLELAND, BRITISH. A.GORDON SMITH, BRITISH. G.DELAGE, FRENCH. ST… | ||
| img028 | Performance and suitability of Jaeger speedometers versus the existing A.T. instruments. | ||
| View original record | To SG. from Hs. C. E. Boy... [Handwritten] V 4665 Hs1/LG23.10.28. JAEGER SPEEDOMETERS. [Handwritten] + 9308 With reference to Sg2/M23.10.28. We are running Jaeger speedometers on two experimental… | ||
| img029 | Chasing the results of Jaeger Speedometer tests. | ||
| View original record | S/W. Hs. X4665 Sg2/M/23.10.28. Re: Jaeger Speedometers. You will remember that about the middle of March we obtained (after consultation with you) two Jaeger Speedometers for test. I wrote you in June… | ||
| img030 | Letter from a speedometer and clock supplier requesting the back axle ratio for chassis 16 E.X. | ||
| View original record | X4665 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. JAEGER ED. JAEGER (LONDON) LTD. SPEEDOMETERS AND CLOCKS ST LEONARDS ROAD, WILLESDEN JUNCTION, LONDON, N.W.10. AGENCIES IN ALL COUNTRIES.… | ||
| img031 | Letter to Messrs. ED. Jaeger Ltd. providing the axle ratio of a car. | ||
| View original record | X4665 Hs/Rml/LG. Expl: Dept: 5th. Nov. 1928. Messrs.ED.Jaeger Ltd., St. Leonards Rd., Willesden Junction, London N.W.10. Dear Sirs, With reference to your letter of the 2nd.inst. ref. RL/VC. The axle… | ||
| img032 | Request for two specific Jaeger r.p.m. indicators for Schneider Cup engine tests. | ||
| View original record | To HY. from Hs. c. to Wor. X4665 Hs8/LG28.11.28. We require two Jaeger r.p.m. Indicators similar to that supplied to the Test Dept. The pointer moves twice round the dial for a speed of 6000 r.p.m. on… | ||
| img033 | Requesting a report on the Jaegar Speedometer before placing new orders. | ||
| View original record | Hs. 4665 ROY/GEA9/EB. 1. 1. 29. Will you kindly advise if you are now in a position to report on the Jaegar Speedometer which you have under observation. Our reason for asking this, is that we are… | ||
| img034 | Testing of a Jaeger speedometer and the decision not to standardise it. | ||
| View original record | To ROY/GEA. from Hs/Rm. X4665 Hs/Rm3/LG10.1.29. X4308 With reference to ROY/GEA9/EB9.1.29. While our tests have proved that the Jaeger speedometer functions fairly well, we should be very loath to… | ||
| img035 | Comparing the A.T. and Jaeger speedometers, recommending the continued use of the A.T. model. | ||
| View original record | W/S. (c). c. Hs. re SPEEDOMETERS. Referring to C10/C7.2.29. in which you put forward the Jaeger speedometer as a replacement for the A.T. speedometer, I have gone carefully into this matter again in… | ||
| img036 | Page 2 of a typed document discussing the need to educate A.T. people to meet requirements. | ||
| View original record | - 2 - BY5/G.11.2.29. and energy to educate the A.T. people to meet our require- ments. BY/ [Handwritten Signature] | ||
| img037 | Letter from The De Lavaud Holdings Corporation to L. Hives regarding a British Patent for an engine indicator. | ||
| View original record | ALL CORRESPONDENCE TO BE ADDRESSED TO THE CORPORATION & NOT TO INDIVIDUALS. Telephone Nº MANSION HOUSE 6937 Telegraphic Address LAVAUDAL, LONDON. X1807 The De Lavaud Holdings Corporation Limited.… | ||
| img038 | The second page of a typed letter, concluding with a signature. | ||
| View original record | -2- you all again, after my return. With best wishes, Very sincerely, WHugp | ||
| img039 | Copy of a patent specification for improvements in indicating mechanisms using a wheatstone bridge. | ||
| View original record | COPY Patent Application Corresponding with United States Application No. 265452 filed March 28, 1928, Edward John Martin, Impt. in indicator. Copy of the specification as filed. B-3722. This invention… | ||
| img040 | Description of an apparatus designed to measure pressure variations within the combustion chamber of an internal combustion engine. | ||
| View original record | 10 indicates a plug having its lower end threaded for reception on a threaded aperture 12 in a wall of the chamber within which it is desired to study the pressure variations. Our improved apparatus… | ||
| img041 | Description of a mechanism for indicating pressure variations, detailing the construction of the diaphragm, cooling system, and electrical connections. | ||
| View original record | combustion chamber are accurately indicated and recorded. The construction is simple and sturdy and is particularly designed so that the diaphragm 18 is subjected to a minimum of strain. By employing… | ||
| img042 | List of claims for an invention related to indicating and pressure indicating mechanisms. | ||
| View original record | Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim is: (1) Indicating mechanism comprising… | ||
| img043 | Specification for an indicating mechanism using a wheatstone bridge. | ||
| View original record | yieldable arm is interposed between carbon pile rheostats supported by the frame and constituting arms of a wheatstone bridge. (13) Indicating mechanism substantially as hereinbefore described. COPY | ||
| img044 | Detailed schematic of an oscillograph element. | ||
| View original record | OSCILLOGRAPH ELEMENT Fig. 1 10 20 30 31 32 34 35 36 37 38 39 50 51 52 54 61 62 64 70 71 75 76 78 | ||
| img045 | Patent drawing showing cross-sections of a mechanical valve or injector assembly. | ||
| View original record | Numbers: 2, 10, 12, 13, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 56, 58, 60, 61, 62, 64 Labels: Fig. 2, Fig. 3 Inventor Edward I. Martin By Blackmore & Spencer & Huck Attorneys | ||
| img046 | Specification for an improved combination spark plug and pressure indicator for an internal combustion engine. | ||
| View original record | COPY. This invention relates to indicating mechanisms and is an improvement in or modification of the invention described in the specification of our prior application for Letters Patent No. 37,024… | ||
| img047 | Description of a thrust element indicator using a diaphragm, carbon pile rheostats, and a Wheatstone bridge circuit. | ||
| View original record | -2- with the bore 20 in the frame 16. The lower end of the bore 20 is sealed by means of a diaphragm 26 which may be secured to the frame 16 by welding or brazing. The diaphragm may be of the type… | ||
| img048 | Description of an indicating mechanism for recording pressure variations in a combustion chamber using an oscillograph. | ||
| View original record | -3- of the rigid arm 24, frame 16, terminal 54, conductor 66, and oscillograph element 68. Current is supplied to the Wheatstone bridge from battery 72 through variable resistance 74 and conductors 76… | ||
| img049 | List of claims for an improvement or modification to a patent for a combined indicator and spark plug. | ||
| View original record | -4- (1) The improvement in or modification of the invention described in the specification of our prior application for Letters Patent No. 37,024, dated December 14, 1928, which consists in combining… | ||
| img050 | Patent-style drawing of an oscillograph element and its associated mechanical assembly. | ||
| View original record | Fig. 1, OSCILLOGRAPH ELEMENT, 3, 10, 12, 13, 14, 16, 20, 22, 24, 30, 33, 34, 36, 38, 40, 42, 44, 46, 48, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 78, 80, 84, 86, 90, 92 | ||
| img051 | Patent-style design drawing of a mechanical adjustment mechanism. | ||
| View original record | Fig. 2, Fig. 3, Inventor, Edward J. Martin, By, Blackmore, Spencer & Clark, Attorneys, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 80, 82, 84, 86,… | ||
| img052 | Letter to Commander Briggs regarding Mr. Constantine's indicator invention. | ||
| View original record | COPY. X1807 HS/RM3/LG. Exptl: Dept: 9th. May 1929. Commander Briggs, The De Lavaud Holdings Corp. Ltd., 73-75 King William Street, London E.C.4. Dear Briggs, With reference to your letter of the 6th.… | ||
| img053 | Requesting instructions to despatch Hasler speed indicator No. 2687 for repair. | ||
| View original record | D/BP. from EFC. c. G/Mt. X 2675. EFC2/AM16.9.29. X.2675. HASLER SPEED INDICATOR. We are sending into the Stores Hasler speed indicator No.2687 Will you please give instructions for this to be… | ||
| img054 | Proposal for a new electrical speedometer design using an alternator and a moving coil instrument with a metal rectifier. | ||
| View original record | To E. from EFC. c. Sg. Ev. c. PN. Wor. c. Rg. HS. X 6023 W.1097. ELECTRICAL SPEEDOMETER. There are now available on the market, alternating current milliammeters which are rendered possible by… | ||
| img055 | New reliable scheme for a magneto D.C. generator, addressing previous unreliability. | ||
| View original record | EFC5/AD25.4.30 contd. -2- We have not heard of this suggestion being previously put forward, but it appears to us to be a scheme which is likely to be entirely reliable, particularly in the absence of… | ||
| img056 | Concept of an alternator-driven electrical speedometer and proposing a test method. | ||
| View original record | X.6023 PN.15/WT28.4.30. S/W. EFC... from PN. X.6023 ELECTRICAL SPEEDOMETER. Referring to your EFC5/AD25,4.30. I like the idea very much of the alternator driven speed-volt-meter. Would any one of the… | ||
| img057 | Small alternator for preliminary tests on an electrical speedometer. | ||
| View original record | X 6023 W/S. To PN. from EFC. EFC2/AD29.4.30. Y 6023. ELECTRICAL SPEEDOMETER. Thank you for your PN15/WT28.4.30, I think it would be quite useful to us to have one of the small alternators of which you… | ||
| img058 | Preliminary test for an electrical speedometer using a small alternator and a bridge rectifier instrument. | ||
| View original record | X 6023 TO E. from EFC. EFC5/AD29.4.30. ELECTRICAL SPEEDOMETER. Referring to my EFC5/AD25.4.30 I have received from PN. a note of which the attached is a copy. I am replying to this note of PN's to the… | ||
| img059 | Faulty small alternator generator hand-lamp. | ||
| View original record | X6023. S/W. WFC...from PN. PN.1/WT12.5.30. Herewith the small alternator generator hand-lamp complete. I notice that the lamp does not, at the moment, light, but am not aware whether this is due to… | ||
| img060 | Confirming receipt of a hand drive alternator for testing as a speedometer. | ||
| View original record | X 6023. PN. from EFC. EFC4/AM.3.5.30. .X6023. X.6025. HAND DRIVE ALTERNATOR. We have now received the hand drive pocket flash lamp alternator which you have sent to us in connection with the idea of… | ||
| img061 | Development and testing of an electrical speedometer using an alternator and milliammeter. | ||
| View original record | X6023. To R. from EFC. c. Sg. c. E. Ry. c. PN. Wor. c. RG. HS. EFC2/AD20.5.30. X6023. X.6025. ELECTRICAL SPEEDOMETER. Probably Mr.Elliott will by now have mentioned to you the possibility for… | ||
| img062 | The application of synchronous motors for mileage and time measurement. | ||
| View original record | EFC2/AD20.5.30 contd. -2- There is the question of miles measurement in addition to that of speed measurement. You may know that it is now possible to obtain small self-starting and synchronising… | ||
| img063 | Description of a speedometer and mileometer arrangement using an alternator, rectifier, and synchronous motor. | ||
| View original record | EFC2/AD20.5.30 contd. -3- There appears no reason in principle why a practical arrangement of speedometer and mileometer should not consist of an alternator whose rotating element is either a… | ||
| img064 | Letter to Messrs. Everett Edgecumbe Ltd. inquiring about the capabilities of a Warren synchronous motor on a variable frequency supply. | ||
| View original record | X6023 EFCL/AD. 20th May, 1930. Messrs. Everett Edgecumbe Ltd. 117, Victoria St. London, S.W.1. Dear Sirs, Warren Motor. Recently, the undersigned had some correspondence with you concerning Warren… | ||
| img065 | Letter from Everett, Edgcumbe & Co Ltd discussing the performance of Warren Synchronous Motors under variable frequency and voltage. | ||
| View original record | X 6023 ON ADMIRALTY. WAR OFFICE AND INDIA OFFICE LISTS. CONTRACTORS TO H.M. GOVERNMENT DEPARTMENTS AND TO THE PRINCIPAL ELECTRIC LIGHT AND POWER UNDERTAKINGS. WORKS:- COLINDALE WORKS, Telegrams:-… | ||
| img066 | Letter from Everett, Edgcumbe & Co. Ltd. concerning the qualities of Warren synchronous motors. | ||
| View original record | EVERETT, EDGCUMBE & CO., LTD. Sheet 2. Messrs. Rolls-Royce Ltd., 23rd May, 1930. at present no demand for synchronous motors, except to run at a fixed frequency. From the information given above you… | ||
| img067 | Sending a revolution counter to Messrs. Jaegar (London) Ltd. for repair. | ||
| View original record | X 4665. C.O. From Hs/CHP. c. to S.O. c. to Stores. Hs/CHP.1/WJ.23.5.30. We are sending into the Stores for despatch to Messrs. Jaegar (London) Ltd., St. Leonards Road, Willesden Junction, LONDON… | ||
| img068 | Letter to Everett Edgcumbe & Co. Ltd clarifying an enquiry about the operational range of a Warren Motor. | ||
| View original record | X 6023. EFC3/AD. 26th May, 1930. Messrs. Everett Edgcumbe & Co. Ltd. 117, Victoria St. London, S.W.1. Dear Sirs, Warren Motor. We are much obliged by yours of the 23rd inst. but feel that the writer… | ||
| img069 | Letter clarifying the operational parameters for a Warren Motor regarding voltage and frequency variations. | ||
| View original record | X6023 ON ADMIRALTY, WAR OFFICE AND INDIA OFFICE LISTS. CONTRACTORS TO H.M. GOVERNMENT DEPARTMENTS, AND TO THE PRINCIPAL ELECTRIC LIGHT AND POWER UNDERTAKINGS. WORKS:- COLINDALE WORKS, HENDON, N.W.9.… | ||
| img070 | Report on a Blackburn 'Sydney' Machine fitted with F.XII.MS. engines. | ||
| View original record | X1350 Rg. Hs. Lr. BY. G. Wor. EP/Thn16/H29.5.30. re. Blackburn "Sydney" Machine fitted with F.XII.MS. 43, 45 and 87. Attached hereto is copy of report received from our tester Warwick with regard to… | ||
| img071 | Letter detailing preliminary notes and concerns regarding the installation of a 'Sydney Machine' engine. | ||
| View original record | X/1350. Station Hotel, Brough. 28.5.30. EP. Dear Sir, Re. SYDNEY MACHINE. I have only had time to make a general survey of the engine installation of above, but append a few preliminary notes on same.… | ||
| img072 | On-site machine installation, detailing progress and issues encountered including a machine surrounded by scaffolding. | ||
| View original record | know something about them. A possible plan, failing that, would be to run over with a true positive drive instrument and check R.P.M. at gate. This could be mechanically accomplished quite easily.… | ||
| img073 | Letter to The Record Electrical Co. Ltd. regarding a query about their electrical engine revolution indicators. | ||
| View original record | X 1350 c. Mr.Jacques A.I.D. c. Hs. c. Mailing. EFC2/AD. 30th May, 1930. The Record Electrical Co.Ltd. Manchester. Dear Sirs, In connection with a report on an aero engine installation the following… | ||
| img074 | The experience and testing of new electrical engine revolution indicators for an aero engine. | ||
| View original record | X1350 Mr. Jacques from EFC. c. HS. EFC3/AD30.5.30. ENGINE REVOLUTION INDICATORS (SPEED INDICATORY?) In a report from one of our outside men concerning the installation of an aero engine, the following… | ||
| img075 | Letter from The Record Electrical Company Limited regarding an Electrical Tachometer and other instruments. | ||
| View original record | X1350. THE RECORD ELECTRICAL COMPANY LIMITED. HEAD OFFICE & WORKS: BROADHEATH, ALTRINCHAM, CHESHIRE. MANUFACTURERS OF ELECTRICAL INSTRUMENTS & SCIENTIFIC APPLIANCES, AMMETERS, VOLTMETERS, WATTMETERS,… | ||
| img076 | Continuation sheet from The Record Electrical Company Limited regarding a visit from their representative. | ||
| View original record | THE RECORD ELECTRICAL COMPANY LIMITED Continuation Sheet 2 Our Technical representative -Mr. Freeman- proposes to call upon you on Tuesday next and will bring with him actual details. We are Yours… | ||
| img077 | Electrical revolution indicator made by The Record Electrical Co. Ltd. | ||
| View original record | A. M. FORM 1084. X1350 AERONAUTICAL INSPECTION DIRECTORATE. MEMORANDUM. No. 21 From INSPECTOR IN CHARGE A.I.D. To MR. COVERLEY EFC C TO MR. GULLANO. Date JUNE 3/30 (*626) Wt. 17842-1135. 250 pads.… | ||
| img078 | Arranging for the loan of an electric revolution speed indicator. | ||
| View original record | X1350 A. M. FORM 1084. AERONAUTICAL INSPECTION DIRECTORATE. MEMORANDUM. No. 41 From INSPECTOR IN CHARGE A.I.D. To MR. CLARK MR. COVERLEY C TO MR. GUILLANO. MR. HERRIOT. Date JULY 9/30 (*626) Wt.… | ||
| img079 | The specifications of an aero engine speedometer from The Record Electrical Co. | ||
| View original record | X1350. 12.6.30. X.1350. AERO ENGINE SPEEDOMETER MADE BY THE RECORD ELECTRICAL CO. Following a letter ref. HKN/LMG. of May 31st. from the Record Electrical Co. their representative Mr. Fuller visited… | ||
| img080 | Request to order a sample dynamo for an electrical revolution indicator for Aero Engines. | ||
| View original record | Y1350. Roy c. EFC. H Rg2/ME.23.7.30. Mr. Griffin Smith of the Weston Electrical Instrument Co.Ltd., 15, Great Saffron Hill, London.E.C.4. showed us a small dynamo for an electrical rev.indicator… | ||
| img081 | Letter from the Royal Aircraft Establishment regarding the dispatch of an Engine Speed Indicator. | ||
| View original record | X1350 COPY. ROYAL AIRCRAFT ESTABLISHMENT, SOUTH FARNBOROUGH, HANTS. Inst/197/47. 23rd August, 1930. Messrs. Rolls-Royce Ltd. Derby. Dear Sirs, Engine Speed Indicators, Electric, Mk.I.A. As instructed… | ||
| img082 | Calibration data for a Record Mark I.A. Revolution Indicator, showing instrument errors at various RPMs. | ||
| View original record | X 1350 Calibration of Record Mark I.A. Revolution Indicator 20.8.30. Indicator Starboard No.15. Generator No.49. True R.P.M. | Instrument Errors, R.P.M. 600 | +5 700 | +5 800 | +5 900 | 0 1000 | -5… | ||
| img083 | The alteration of Phantom II radiator thermometers to address over-heating problems. | ||
| View original record | Y 3875. BY. From Hs/Rn. c. to Wor. Hs/Rn.2/MJ.26.8.30. X7250. PHANTOM II RADIATOR THERMOMETERS. In view of the prominence of our over-heating troubles, we think that it is important that the… | ||
| img084 | Information regarding overheating issues and the cooling system design for the Phantom II model. | ||
| View original record | To Sg. from Hs/Rm. c. Wor. C. c. FN. H. EP. c. MX. Hd. By. Handwritten: Y3875 ORIGINAL Hs/Ral/AD2. 9.30. Handwritten: Y766 Y7250 Y7260 Y3875 OVERHEATING - PHANTOM II We suggest that the following… | ||
| img085 | Instructions regarding the radiator shutter warning lamp and bonnet ventilation for hot weather. | ||
| View original record | -2- (1) The red lamp which is fitted to the instrument board is put there to prevent the driver forgetting to open his radiator shutters. When the red lamp lights it does not mean that the car cannot… | ||
| img086 | Guidance on interpreting the red warning lamp and using the cut-out on Continental roads. | ||
| View original record | Hs/RM/AD2.9.30 contd. -3- (3) On Continental roads, benefit can be derived from running with the cut-out open. The main point to bear in mind is that the periodic lighting of the red lamp in… | ||
| img087 | Standardisation of the warning light operation on the thermometer to activate at 97.5°C. | ||
| View original record | RR 755 REVISED (10H) (DG 348 19-7-29) 6/643. COMPLETED 4.9.30. *x3875. STANDARDISATION of CHASSIS PARTS. Date 1.8.30. Description of Parts. OPERATION AT 97.5°C. OF THE WARNING LIGHT ON THERMOMETER.… | ||
| img088 | Three proposed modifications to address overheating issues in the Phantom II model. | ||
| View original record | X3875 To Hs. from Sg. C. Wor. C. PN. C. H. EP. MX. Hd. BY. Sg3/E4.9.30. X: 766 X. 3875 X. 1085 X. 3220 X. 196 OVERHEATING - PHANTOM II I have read with interest the contents of Hs/Bul/AD2. 9.30 and I… | ||
| img089 | Overheating tests on a Phantom II, focusing on modifying the undershields. | ||
| View original record | To Sg. From Hs. c. to Wo R. c. to C. c. to PN. c. to H. c. to Mx. c. to EP. c. to Hd. c. to By. X3875 Hs.4/MJ.8.9.30. X.766. X.3875. X.1085. X.7220. X.196. OVERHEATING - PHANTOM 11. Replying to… | ||
| img090 | Request to return a faulty Hasler speed indicator to the makers for readjustment. | ||
| View original record | X2675 Roy. from EFC. EFC1/AD23.9.30. X.2675. HASLER SPEED INDICATOR. No.13748. We hand you herewith Hasler speed indicator Will you please arrange to send this to the makers for readjustment as the… | ||
| img091 | Inspection and testing of a loaned Electric Revolution Indicator. | ||
| View original record | X/1350 EFC. RECEIVED SEP 26 1930 Rg/SFP2/ME.25.9.30. ELECTRIC REVOLUTION INDICATOR. We have received on loan one Electric Revolution Indicator complete with Generator and a list of instructions all of… | ||
| img092 | Air Ministry correspondence regarding the loan of an Electric Revolution Indicator for engine testing. | ||
| View original record | X1350. COPY. AIR MINISTRY. LONDON. W.C.2. 20th September 1930. 43519/30/R.D.E.2.b./A.G.F. Your Ref.Rg/SFP2/ME. Electric Revolution Indicator. For the Attention of Mr. Rowledge. Gentlemen, I am… | ||
| img093 | The fitting and testing of an aero engine electrical speedometer, noting a missing part. | ||
| View original record | X1250 RHC. from EFC. c. HS/ACL. EFCL/ADL.10.30. AERO ENGINE ELECTRICAL SPEEDOMETER. Herewith, we hand you electrical speedometer apparatus, will you please arrange for the fitting of this to a… | ||
| img094 | Instruction leaflet for the installation of flexible shaft drives for engine speed indicators. | ||
| View original record | COPY. Inst/269/29. 9th July, 1929. INSTRUCTION LEAFLET NO. 48. Installation of Flexible Shaft Drives for Engine Speed Indicators. Description of Shaft. The flexible shaft consists of closely wound… | ||
| img095 | Instructions for adjusting a shaft and casing, including a method for shortening the shaft. | ||
| View original record | -2- 3. When one end of the shaft and casing is coupled up in place, the length of the casing should be adjusted so that the other end of the shaft does not bear hard on its washer or stand more than… | ||
| img096 | Instruction leaflet for the installation of an electric engine speed indicator, Mark IA. | ||
| View original record | INSTRUCTION LEAFLET NO. 69. Installation of Indicator, Engine Speed -electric, Mark IA. Description. The complete indicator consists of two parts (1) a generator mounted close to the engine and… | ||
| img097 | Maintenance instructions for the generator and flexible drive lubrication. | ||
| View original record | -2- Maintenance. The grease caps on the generator should be filled with "M.T. Vehicle grease" R.A.F. Stores Ref. 2 Section 34. and given one turn at infrequent intervals. Excessive lubrication should… | ||
| img098 | Letter from a machinery supplier about electrically operated long-distance tachometers for aeroplanes. | ||
| View original record | X. 1350 ALL ENGAGEMENTS ARE SUBJECT TO THE APPROVAL OF HEAD OFFICE. RESPONSIBILITY CANNOT BE ACCEPTED FOR ANY ORDERS UNLESS ISSUED ON OUR PRINTED FORM TELEPHONE: CENTRAL 1704-5 (TWO LINES) ESTABLISHED… | ||
| img099 | Request to fit an Electrical Revolution Counter on No.3 Test Bed for testing. | ||
| View original record | X1350. To RHC. From Hs/GH. Hs/GH.1/MJ.28.10.30. Will you please arrange to fit the Electrical Revolution Counter handed to you by EFC., on No.3 Test Bed for test. Hs/G.Hall. | ||
| img100 | Observation of an Aero Engine Electrical Speedometer fitted to an F.10 engine. | ||
| View original record | X1350 HS/ACL. from EFC. EFC2/AD25.11.30. X.1350. AERO ENGINE ELECTRICAL SPEEDOMETER We understand that this has now been fitted to an F.10 engine. Further that you will advise us when this engine is… | ||
| img101 | The testing of an aero engine electrical speedometer on a test bed. | ||
| View original record | To EFC. From Hs/ACL. X.1350 Hs/ACL.2/MJ.27.11.30. X.1350. AERO ENGINE ELECTRICAL SPEEDOMETER. We are testing this instrument on number three test bed. It is working quite satisfactorily and is… | ||
| img102 | Letter to North & Sons, Ltd. regarding the testing of a 100 m.p.h. Watford Magnetic type Speedometer and required modifications. | ||
| View original record | X6129 Hs/HEWL/AD. June 19th, 1931. Messrs. North & Sons, Ltd. Whippendell Rd. Watford. Dear Sirs, Watford Magnetic type Speedometer. Referring to 100 m.p.h. speedometer which you have submitted to us… | ||
| img103 | Test report on a Watford 100 m.p.h. magnetic type speedometer. | ||
| View original record | X 6129 To R. from Hs/HEW. c. Sg. WOR. c. E. De. c. Ey. PN. Hs/HEW2/AML 9.6.31. WATFORD 100 m.p.h. MAGNETIC TYPE SPEEDOMETER. We have tested a sample speedometer submitted by Messrs. North which works… | ||
| img104 | Graph showing the drop in M.P.H. reading with a rise in temperature for two types of magnetic speedometers. | ||
| View original record | MAGNETIC TYPE SPEEDOMETERS CURVES SHEWING PERCENTAGE DROP IN M.P.H. READING WITH RISE IN TEMPERATURE WATFORD A.T. M.P.H. READING TEMP. DEGREES C | ||
| img105 | Letter chasing North & Sons for a sample 100 M.P.H. magnetic speedometer for an experimental chassis. | ||
| View original record | X6129 Hs/Wst.3/AD. September 3rd, 1931 Messrs. North & Sons,Ltd. Whippendell Rd. Watford. Dear Sirs, Watford 100 M.P.H. Magnetic Speedometer. We are still anxiously awaiting the sample model, arranged… | ||
| img106 | Testing and cost of a new A.T. type magnetic speedometer from Messrs. North. | ||
| View original record | X6129 PN.4/WT2.10.31. S/W. Hs....from PN. Copy to Cx. Watford 100 m.p.h. Magnetic type Speedometer. In Hs/HEW2/AD19.6.31 we were much interested to learn that you are proposing to obtain and test one… | ||
| img107 | Follow-up on the supply of a Watford 100 M.P.H. magnetic type speedometer from Messrs. North & Sons. | ||
| View original record | X6129 from Hs/wst. Hs/Wst.2/AD3.10.31. WATFORD 100 M.P.H. MAGNETIC TYPE SPEEDOMETER. Answering your PN4/WT2.10.31. As the matter was left with Messrs. North & Sons, after our bench tests of a sample… | ||
| img108 | Letter from North & Sons, Ltd. regarding the despatch of a Watford 100 M.P.H. Magnetic Speedometer. | ||
| View original record | WST X6129 THE BRITISH MADE Watford SPEEDOMETERS. & MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD, 4422 (2 Lines) TELEGRAMS: ABROMAGS WESTCENT… | ||
| img109 | Inquiry regarding the progress on a Watford 100 M.P.H. Magnetic Tyre Speedometer. | ||
| View original record | X6129 PN.2/WT16.10.31. S/W. Hs/Wst. | ||
| img110 | The procurement of a Watford 100 M.P.H. magnetic speedometer for a test. | ||
| View original record | PN. from Hs/Wst. C. CX. X6129 Hs/Wst.3/AD21.10.31. WATFORD 100 M.P.H. MAGNETIC SPEEDOMETER. Answering your PN2/WT.16.10.31 with reference to the above, we spoke to the Watford representative at their… | ||
| img111 | Letter to North & Sons Ltd. requesting the number of revolutions per mile for a sample Watford Magnetic type Speedometer fitted to a 20/25 test car. | ||
| View original record | X 6129 Hs/Wst.2/AD. October 23rd, 1931. Messrs. North & Sons, Ltd. Whippendell Rd. Watford. Dear Sirs, Watford Magnetic type Speedometer. We have received the sample speedometer made up to suit our… | ||
| img112 | Letter from North & Sons Ltd. confirming the specifications of a sample speedometer at 785 turns per mile. | ||
| View original record | COMMERCIAL MOTOR TRANSPORT EXHIBITION OLYMPIA NOV. 5-14 OUR STAND No. 331 Gallery X6129 SPEEDOMETERS THE BRITISH MADE Watford & MAGNETOS NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEGRAMS:… | ||
| img113 | The testing of a Watford speedometer for 18-GIV, noting a 3% reading discrepancy. | ||
| View original record | X6129 Hs/CWH. from Hs/Wst... c.c. hs/ltd. [text crossed out] Hs/Wst.3/AD26.10.31. WATFORD SPEEDOMETER. The Watford speedometer is now fitted to 18-GIV for test. As arranged by the makers, it reads… | ||
| img114 | Ignition setting test on an 18.G.IV 10,000 miles test car to determine optimum timing. | ||
| View original record | FILES. X6129 26.10.31. X5840, X5681 X6129 18.G.IV. 10,000 miles Test Car. The following test was carried out to determine the latest ignition setting that could be used without loss of power. It will… | ||
| img115 | The testing and calibration of a Watford speedometer fitted to a car for testing. | ||
| View original record | Hs/GWH. from Hs/Wst.. c. Hs/Ltd. X6129 Hs/Wst.3/AD26.10.31. WATFORD SPEEDOMETER. The Watford speedometer is now fitted to 18-GIV for test. As arranged by the makers, it reads correct both mileage and… | ||
| img116 | Letter to North & Sons regarding an incorrect length of flexible drive for a Watford Speedometer on a 20/25 HP chassis. | ||
| View original record | X 6129. c. Roy. Hs/Wst.5/AD. October 26th, 1931. Messrs. North & Sons, Ltd. Whippendell Rd. Watford. Dear Sirs, Watford Speedometer. We find that the length of flexible drive supplied with this… | ||
| img117 | Exchange of an incorrect length Watford speedometer cable. | ||
| View original record | Y6129 To Roy/MS. c. C/Mt. c. D/BP. Hs/Wst.1/KT.4.11.31. WATFORD SPEEDOMETER CABLE. We are sending into the stores a length of speedometer cable which was originally sent with the Watford speedometer… | ||
| img118 | Letter to a customer regarding a failed Watford 100 M.P.H. Speedometer. | ||
| View original record | X6129 G.W.Hancock. Hotel De France, Chateauroux, Indre, France. Hs/Wst1/EG.11.11.31. Watford 100 M.P.H. Speedometer. We regret to hear of the failure you have experienced with this instrument, and we… | ||
| img119 | Letter concerning the failure of a sample Watford 100 M.P.H. Magnetic Speedometer during an endurance test. | ||
| View original record | X6129 ROLLS ROYCE. LTD. DERBY. TELEGRAMS: "ROYCAR. DERBY" TELEPHONES: DERBY 1320 (6 LINES) IN YOUR REPLY PLEASE QUOTE Messrs North and Sons Ltd., Whippendell Rd., Watford, Herts. from - HS/Wst.… | ||
| img120 | Broken Watford speedometer spindle and its temporary replacement. | ||
| View original record | X6129 To Hs/Wst. From G.W.H. WST Hotel de France, Chateauroux, FRANCE. 13/11/31. 18.G.IV. RE. THE WATFORD SPEEDOMETER. The broken spindle we sent you from Paris, taken out of the Watford speedometer,… | ||
| img121 | Letter from North & Sons, Ltd. acknowledging a letter regarding a broken sample speedometer and arranging for a replacement to be sent for testing. | ||
| View original record | X6129 THE BRITISH MADE Watford & MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEGRAMS: AEROMAGS WESTCENT LONDON. AEROMAGS WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY,… | ||
| img122 | Query regarding a Watford 100 M.P.H. Magnetic Speedometer fitted to car 18-G4. | ||
| View original record | X6129 PN.1/WT25.11.31. S/W. Hs/Wst....from PN. Watford 100 M.P.H. Magnetic Speedometer. Following your Hs/Wst3/AD21.10.31. Is this instrument in fact fitted to 18-G4 and therefore going through a test… | ||
| img123 | The testing and issues with a Watford magnetic speedometer. | ||
| View original record | PN. from Hs/Wst. c. CX. X6129 Hs/Wst.4/AD30.11.31. WATFORD MAGNETIC SPEEDOMETER. Answering your PNL/WT25.11.31. This instrument was fitted to 18-GIV but unfortunately Mr.Hancock reported trouble due… | ||
| img124 | Letter from North & Sons, Ltd. regarding the dispatch of a sample speedometer. | ||
| View original record | THE BRITISH MADE Watford SPEEDOMETERS. & MAGNETOS. 16127 NORTH & SONS, LTD. WHIPPENDALELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD, 4422 (2 Lines) TELEGRAMS: AEROMAGS WESTCENT… | ||
| img125 | To G.W. Hancock regarding the replacement of a failed Watford speedometer for car 18-GIV. | ||
| View original record | X6129 G.W.Hancock from Hs/Wst. Hotel de France, Chateauroux, Indre, France. Hs/Wst.3/AD4.12.31. WATFORD SPEEDOMETER. We have now received from Messrs. North & Sons, a new speedometer to replace the… | ||
| img126 | Requesting the despatch of a Watford speedometer to France for testing on vehicle 18-GMV. | ||
| View original record | D/BP. from Hs/Wst. c. Despatch Stores. X6129 Hs/Wst.4/AD4.12.31. We are sending into the Stores a Watford speedometer. Will you please arrange to despatch this to G.W.Hancock, Hotel de France,… | ||
| img127 | Letter to Dobbie, Mc Innes & Clyde Ltd. inquiring about improvements to their 'Fanboro' type electrical indicators. | ||
| View original record | XH580. Hs/C.H.P.4/MA. 8th.,Dec.1931. Messrs. Dobbie, Mc Innes & Clyde Ltd., 42 Coronation Street, SOUTH SHIELDS. Dear Sirs, We have in use in our Expl. Dept. one of your "Fanboro" type electrical… | ||
| img128 | Letter to Dobbie McInnes & Clyde Ltd requesting particulars for maximum pressure indicators. | ||
| View original record | 84580. Hs/C.H.P.5/MA. 10th., Dec.1931. Messrs. Dobbie McInnes & Clyde Ltd., 42 Coronation Street, SOUTH SHIELDS. Dear Sirs, We should be obliged if you would kindly send to us full particulars… | ||
| img129 | Quotation from Dobbie McInnes & Clyde Ltd for a 'Farnboro' Electric Indicator'. | ||
| View original record | Telegrams -- "COMPASS" GLASGOW. Telephones -- 2912 CENTRAL (2 LINES.) GOVERNMENT CONTRACTORS. BRANCHES. LIVERPOOL, 39 So. Castle St. SO. SHIELDS, 12 Coronation St. LONDON, 8, Billiter St., E.C.3.… | ||
| img130 | Quotation from Dobbie McInnes & Clyde Ltd for a 'Farnboro' Electric Maximum Pressure Gauge and associated components. | ||
| View original record | BRITISH & FOREIGN GOVERNMENT CONTRACTORS. Telegrams:-"COMPASS", GLASGOW. Telephones:- 2912 CENTRAL (2 LINES.) BRANCHES. LIVERPOOL, 39 So. Castle St. SO. SHIELDS, 42 Coronation St. LONDON, 9 Billiter… | ||
| img131 | Request to order a Dobbie-McInnes Farnboro' Electric Maximum Pressure Gauge due to new test regulations. | ||
| View original record | X4580. To Roy. From Hs/CHP. c. to Wor. Hs/CHP.8/KT.14.12.31. Will you kindly order from Messrs Dobbie, McInnes & Clyde Ltd., of 57, Bothwell St, Glasgow.C.2. - One "Dobbie-McInnes", Farnboro' Electric… | ||
| img132 | Letter to Messrs Dobbie McInnes & Clyde Ltd acknowledging receipt of correspondence and a booklet for a 'Farnboro' Electric Indicator'. | ||
| View original record | X4580. Hs/CHP.9/KT. Dec.14th, 1931. Your refs. ENGRG. BKS. ENG.JM'C/BKS. Messrs Dobbie McInnes & Clyde Ltd, 57, Bothwell Street, Glasgow. C.2. Dear Sirs, We are in receipt of your letters of the 10th… | ||
| img133 | Arranging the despatch of loaned electrical equipment back to the Chief Superintendent at R.A.E. Farnborough. | ||
| View original record | X1350 D/BP. from.Hs/Wst. c. RHC/CEP. c. Despatch Stores. Hs/Wst.3/AD.15.12.31. X613 Will you please arrange to despatch to the Chief Superintendent, R.A.E. Farnborough, one electrical revolution… | ||
| img134 | Letter regarding the return of loaned apparatus to the Royal Aircraft Establishment, Farnborough. | ||
| View original record | X/1350 c. Rg. c. Mr. Jaques. HS/Wst.1/MA. December 15.th, 1931. X6138 The Chief Superintendent, Royal Aircraft Establishment, Farnborough. Dear Sir, We are arranging to return to you the following… | ||
| img135 | Letter to North & Sons, Ltd. regarding a faulty Watford Magnetic Type Speedometer and requesting a replacement. | ||
| View original record | X6129 Hs/Wst.2/AD. December 30th, 1931. Messrs. North & Sons, Ltd. Whippendell Rd. Watford. Dear Sirs, Watford Magnetic Type Speedometer. It was arranged with your Mr. Vivian Glenn this afternoon to… | ||
| img136 | Letter from North & Sons, Ltd. acknowledging a request and confirming a modified speedometer will be sent. | ||
| View original record | X6129 SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. WHIPPENDALE ROAD, WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, CROWN AGENTS FOR THE COLONIES, INDIA OFFICE. TELEPHONES: LONDON… | ||
| img137 | Request to despatch a Watford speedometer to Messrs. North & Sons for repair and adjustment. | ||
| View original record | X6129 Roy. From Hs/Wst. c.c. to D/BP c.c. to G/MT. Hs/Wst.2/MA.23. 1. 32. WATFORD SPEEDOMETER. Will you kindly arrange to despatch to Messrs. North & Sons a Watford 100 m.p.h. magnetic type… | ||
| img138 | Letter regarding the return of a Watford 100 m.p.h. speedometer for overhaul, repair, and adjustment. | ||
| View original record | X6129 C to Roy. Hs/Wst.3/MA. January 23rd, 1932. Messrs North & Sons Whippendale Rd., Watford. Watford 100 m.p.h. Speedometer. Dear Sirs, We are arranging to return to you the speedometer referred to… | ||
| img139 | The despatch of a faulty 100 M.P.H. Watford speedometer for an approval test. | ||
| View original record | X6129 Roy. from Hs/Wst. c. G/Mt. c. D/RR. Hs/Wst.5/AD22.2.32. WATFORD SPEEDOMETERS Will you please arrange to despatch to Messrs. North & Sons, a magnetic type 100 M.P.H. speedometer which is faulty,… | ||
| img140 | Letter concerning the return of two inaccurate 100 M.P.H. speedometers due to poor performance during testing. | ||
| View original record | X6129 c. Roy. Hs/Wst.4/AD. February 22nd, 1932. Messrs. North & Sons, Ltd. Whippendell Rd. Watford. Dear Sirs, 100 M.P.H. Speedometer We are returning to you under separate cover the two 100 M.P.H.… | ||
| img141 | Request to despatch a replacement 100 m.p.h. magnetic type Watford Speedometer. | ||
| View original record | X6129 ROY/JT7/P.23.2.32 c. to Hs/WST. RECEIVED WATFORD SPEEDOMETERS. With reference to memo Hs/Wst5/AD.22.2.32. will you please despatch today by post one magnetic type Watford Speedometer 100 m.p.h.,… | ||
| img142 | The return of a sample Watford 100 M.P.H. magnetic speedometer to the stores. | ||
| View original record | X6129 Roy/JT. from Hs/Wst. c. Despatch Stores. c. D/PP HS/Wst.2/AD2.3.32. WATFORD 100 M.P.H. MAGNETIC SPEEDOMETER. We now wish to return the other sample speedometer as referred to in our letter to… | ||
| img143 | Inquiry to Dobbie-McInnes & Clyde Ltd. regarding the suitability of their 'Farnboro' Electric Indicator. | ||
| View original record | r4580. Expl. Dept. Hs/Yng/YMJ. 8th. March 1932. Messrs. Dobbie-McInnes & Clyde Ltd., 57, Bothwell Street, GLASGOW. Dear Sirs, We wish to use your 'Farnboro' Electric Indicator to obtain a diagram from… | ||
| img144 | The 'Maximum Pressure Indicator' apparatus for measuring pressure in engine cylinders. | ||
| View original record | X4580. Rg. From Hs/Yag. c. to Mr. KP. c. to Mr. By. c. to Mr. Jaques. Hs/Yag.3/MA.9. 3. 32. X2965. MAXIMUM PRESSURE INDICATOR. A set of tackle has been made up for measuring maximum pressure in engine… | ||
| img145 | Description of how a pressure gauge records maximum cylinder pressure and its A.I.D. approval for Type Tests. | ||
| View original record | -2- HS/Ymr.3/IA.9.3.32.contd This sequence of events takes place on each cycle and a shower of sparks passes from the pointer end on the pressure gauge to the insulated strip due to the repeated… | ||
| img146 | Photograph of an engine mounted on a test rig, with a focus on the instrumentation. | ||
| View original record | Tachometer Gauge: Main dial reads 0-2000 R.P.M. Inner dial reads 0-14 (likely x1000) R.P.M. | ||
| img147 | Blueprint diagram of an Electrical Indicator Valve. | ||
| View original record | ELECTRICAL INDICATOR VALVE, CONNECTION TO AIR BOTTLE, TERMINAL, INSULATOR, DISC VALVE, STD. PLUG THREAD. 18 m/m, AUXILIARY ESCAPE VALVE, TO BLOW OUT OILY GASES,, PRIOR TO OPENING DISC VALVE.,… | ||
| img148 | Wiring diagram showing the electrical connections for a pressure gauge system. | ||
| View original record | ELECTRICAL PRESSURE GAUGE CONNECTIONS A - PRESSURE GAUGE B - AIR BOTTLE C - INDUCTION COIL D - ACCUMULATOR E - DISTRIBUTION BOX F - DISC VALVE UNIT ROLLS-ROYCE, LTD. PRINT ROOM MAR 9 1932 DERBY. | ||
| img149 | Quotation for a 'Farnboro' Electric Indicator and associated parts from Dobbie McInnes & Clyde Ltd. | ||
| View original record | GOVERNMENT CONTRACTORS. Telegrams:- 'COMPASS', GLASGOW. Telephones - 2912 CENTRAL (2 LINES.) BRANCHES: LIVERPOOL, 39 So. Castle St. Sth. SHIELDS, 42 Coronation St. LONDON, 9 Billiter Sq. E.C.3 WORKS,… | ||
| img150 | Proposal for a new lightweight aero engine revolution counter using a small alternator. | ||
| View original record | X1350 To Rg. from Hs/Wst. c. Wor. c. Ev. Hs/Wst.1/AML6.3.32. AERO ENGINE REVOLUTION COUNTER All the existing types of aero revolution indicators we have seen are, we consider, too bulky and heavy for… | ||
| img151 | Continued memo on testing a scheme with a Ferranti rectifier instrument for potential use in aero engines. | ||
| View original record | Hs/Wst.1/ADL6.3.32 contd. -2- Only the evolution during the past two years of the Ferranti rectifier instrument has made this scheme practicable. At Rg's request we havemade rough tests using an aero… | ||
| img152 | Inquiry to Vickers Aviation Ltd. regarding the type of electrical revolution indicator used on their multi-engine machines. | ||
| View original record | X1350. Hs/Wst.1/AD. March 22nd, 1932. Messrs. Vickers Aviation Ltd. Weybridge, Surrey. Dear Sirs, Could you kindly let us know the type of electrical revolution indicator in use on the Multi-engine… | ||
| img153 | Letter from Vickers (Aviation) Limited regarding the electrical revolution indicators used on their multi-engined machines. | ||
| View original record | X1350 LONDON OFFICE- VICKERS HOUSE, BROADWAY, WESTMINSTER. VICKERS (AVIATION) LIMITED. Telephone. BYFLEET 240 (5 LINES) Telegrams. VICKERS, WEYBRIDGE. DIRECTORS: SIR ROBERT MCLEAN (CHAIRMAN) SIR MARK… | ||
| img154 | Request for particulars of electrical aero revolution indicating instruments from two separate companies. | ||
| View original record | X1350 Roy/MS. From HS/Wst. HS/Wst.1/MA. 24. 3. 32. Will you kindly obtain from The Record Electrical Co. Ltd., Broadheath, Manchester, and the Foster Instrument Co. Letchworth Herts particulars of the… | ||
| img155 | Letter to Vickers (Aviation) Ltd. regarding Electrical R.P.M. Indicators. | ||
| View original record | X 1350 .Hs/Wst.2/MA. March 24th, 1932. Vickers (Aviation) Ltd., Weybridge SURREY. Electrical R.P.M. Indicators. Dear Sirs, We beg to thank you for the information sent us with regard to the above in… | ||
| img156 | Letter inquiring about a 'strobophonometer' for measuring engine noise and its potential use in detonation tests. | ||
| View original record | Expl. Dept. Hs/Ud.3/MJ. June 29th.1932. Y.4691 R. Stansfield Esq., A.M.I.C.E., The Anglo Persian Oil Co. Ltd., Research Laboratories, Sunbury-on-Thames. Dear Mr. Stansfield, When visiting your… | ||
| img157 | Letter from the Anglo-Persian Oil Company discussing engine noise measurement techniques using a Strobophonometer. | ||
| View original record | C.S.31. x4691 Anglo-Persian Oil Company, Limited. BP Research Station. Telephone: Sunbury 390. Your Reference HS/Ud.3/MJ Our Reference RS/DF P.O. Box 1, Chertsey Road, Sunbury-on-Thames. 1st July,… | ||
| img158 | Continuation of a letter discussing engine knock testing equipment and procedures. | ||
| View original record | CONTINUATION 1 PAGE 2 DATE 1.7.32 that no two microphones are alike, but, again, the differences should not be great, and could be allowed for by calibrating each microphone against any selected… | ||
| img159 | Gear ratios and performance compromises for a Bensport speedometer drive. | ||
| View original record | BY. FROM HDY. 86065 HDY1/M5.7.32. Copy to - HS. BENSPORT SPEEDOMETER DRIVE. We are providing for a damper speed control unit on the Bensport gearbox, and the combined drive for this and the… | ||
| img160 | Speedometer calibration calculations for a Bentley 3 1/2 Litre chassis. | ||
| View original record | RM Y6065 BENTLEY 3 1/2 LITRE CHASSIS SPEEDOMETER CALIBRATION Effective tyre circumference (found by actual trial) 90.375" with India tyres 35 lbs per sq.in. 89.375" " Goodyear " 35 " " " Therefore… | ||
| img161 | Testing and ordering of a Lucas bicycle lighting generator for use as an aero engine revolution indicator. | ||
| View original record | X1350 Roy/MS. From HS/Wst. HS/Wst.11/MA. 6.7.32. AERO ENGINE REVOLUTION INDICATOR. With reference to the small bicycle lighting generator which you obtained from Messrs. Lucas on approval for test in… | ||
| img162 | Requesting the return of a sample Watford 100 m.p.h. speedometer to Messrs Norths. | ||
| View original record | X6129 ROY. c. D/SP. c. C/Mt. Ha/Wst.5/KT.13.8.32. WATFORD SPEEDOMETER. Will you please return to Messrs Norths, a Watford 100 m.p.h. speedometer. This is a sample instrument we have been testing and… | ||
| img163 | Letter to Mr. Stansfield of the Anglo Persian Oil Company arranging a meeting to discuss the Strobophonometer. | ||
| View original record | x4691. Hs/Ud.2/AD. August 26th, 1932. Stansfield Esq. A.M.I.C.E. Diesel Research Department, Research Laboratories, Anglo Persian Oil Company, Sunbury-on-Thames. Dear Mr. Stansfield, I shall be in… | ||
| img164 | Letter to Mr. Everett of Anglo-Persian Oil Co. Ltd regarding suggestions for the Strobophonometer. | ||
| View original record | x4691. HS/CHP.2/KT. Your ref. RES/B. August 30th, 1932. P.N. Everett, Esq. Messrs Anglo-Persian Oil Co. Ltd, Britannic House, Finsbury Circus. E.C.2. Dear Mr. Everett, I am obliged for your letter of… | ||
| img165 | Sending notes regarding an electrical aero engine revolution counter and noting commercial interest from other companies. | ||
| View original record | X1350 To R. from Hs/Wst. Hs/Wst.2/AD31.8.32. At Hs's request I am sending you herewith some notes regarding the electrical aero engine revolution counter. We had in mind that such a unit might be… | ||
| img166 | Letter to the Anglo-Persian Oil Company Ltd. concerning the capabilities of a Strobophonometer instrument. | ||
| View original record | Y4691, Hs/Ud.5/AD. September 2nd, 1932. P.N. Everett Esq. Anglo-Persian Oil Company Ltd. Britannic House, Finsbury Circus, London, E.C.2. Dear Mr. Everett, Mr. Parkinson has handed me your letter of… | ||
| img167 | Notes on the use of the Strobophonometer for detecting detonation. | ||
| View original record | x4691. To Hs. from Hs/Ud. Hs/Ud.4/ADB.9.32. NOTES ON THE USE OF THE STROBOPHONOMETER FOR DETECTING DETONATION. Principle of the instrument is to obtain a measure of the "loudness" of sounds. A… | ||
| img168 | Procedure for examining noises in a 12-cylinder engine and determining permissible detonation using a Strobophonometer. | ||
| View original record | -2- Application to a multicylinder Engine. To examine and compare the noises emitted by the cylinders of a 12 cylinder engine the microphone would have to be mounted in a rubber pad as previously… | ||
| img169 | Experiments and conclusions regarding the measurement of engine detonation and the potential use of a strobophonometer. | ||
| View original record | Hs/Ud.4/AD8.9.32. contd. -3- If conditions are now changed so that detonation commences the start of detonation will be indicated by an increase in the scale reading. By a somewhat long process of… | ||
| img170 | Leaflet for speed-indicating equipment from the B.T.H. Company. | ||
| View original record | Y1807 To Hs/Wst. from ROY. ROY9/MG8.11.32 Attached is leaflet descriptive of Speed-indicating Equipments recently placed on the market by the B.T.H.Company - in fact I believe they have over 1000 sets… | ||
| img171 | Letter from British Jaeger Instruments Ltd. regarding a request for information on flexible lengths for two experimental instruments. | ||
| View original record | XH665 BRITISH JAEGER INSTRUMENTS LTD. CHRONOS WORKS, NORTH CIRCULAR ROAD, LONDON, N.W. 2. DIRECTORS: W. HENDERSON-CLELAND, BRITISH. A. GORDON SMITH, BRITISH. O. DELAGE, FRENCH. Telephone: GLADSTONE… | ||
| img172 | Cover letter accompanying a descriptive leaflet for Jaeger revolution counters. | ||
| View original record | YNG ->8466- To "Hs" Derby Sèvres Hm/VA23/RH.31.12.32 Re: JAEGER Revolution Counters. We attach a description leaflet of the Jeager revolution counters which you may find useful. "Hm/VA" VA | ||
| img173 | French product information sheet for Jaeger recording tachometers. | ||
| View original record | HORLOGERIE DE LUXE JAEGER INSTRUMENTS DE PRÉCISION TACHYMÈTRES-ENREGISTREURS COMPTE-TOURS ENREGISTREUR JAEGER CARACTÉRISTIQUES: DIAMÈTRE DE LA LUNETTE: 102 M/M EMBASE CARRÉE : 95x95 M/M FIXATION :… | ||
| img174 | French-language document from Jaeger describing the mechanism and operation of a recording tachometer. | ||
| View original record | HORLOGERIE DE LUXE JAEGER INSTRUMENTS DE PRÉCISION Le mécanisme de l'appareil est basé sur le principe chronométrique, déjà décrit, de nos tachymètres. Il comporte en plus un dispositif d'entraînement… | ||
| img175 | Instruction page for operating a Jaeger tachymeter-recorder. | ||
| View original record | HORLOGERIE DE LUXE JAEGER INSTRUMENTS DE PRÉCISION - Mettre le disque à diagramme dans le plateau de manière à ce que son début horaire coïncide avec le trait de crayon. - Appliquer avec soin le… | ||
| img176 | French-language table detailing graduations and revolution times for Jaeger precision instruments. | ||
| View original record | HORLOGERIE DE LUXE JAEGER INSTRUMENTS DE PRÉCISION TABLEAU DES GRADUATIONS ET DES TEMPS DE RÉVOLUTION No du cadran | Angle de la graduation sur cadran | Graduation en nombres de tours-minute | Durée… | ||
| img177 | Letter to Westinghouse Brake & Saxby Signal Co. Ltd. providing patent application numbers for an Electrical Revolution Indicator. | ||
| View original record | x1807 Hs/Wst.1/MA. March 11th., 1933. The Westinghouse Brake & Saxby Signal Co.Ltd., 82, York Road, Kings Cross, London, N. For the attention of Mr.S.A.Stevens, B.Sc.(Eng.) Dear Sirs, With reference… | ||
| img178 | Request to despatch a dismantled speedometer to Messrs S. Smith & Sons. | ||
| View original record | x6129. D/BP. from Hs/Wst. C. G/Mt. Hs/Wst.9/KT.21.3.33. Will you please despatch to Messrs S. Smith & Sons, M.A. Cricklewood, addressed for the attention of Mr. Nichols, a dismantled speedometer which… | ||
| img179 | Letter from Westinghouse regarding competing patent applications for an electrical revolution indicator. | ||
| View original record | INLAND TELEGRAMS: WESTINGHOUSE, KINCROSS, LONDON. CABLES: WESTINGHOUSE, LONDON. x1807 THE WESTINGHOUSE BRAKE & SAXBY SIGNAL COMPANY LIMITED ASSOCIATING THE WESTINGHOUSE BRAKE Co. LTD. McKENZIE &… | ||
| img180 | Letter to Westinghouse Brake & Saxby Signal Co. Ltd. regarding a German patent number. | ||
| View original record | X1807 Hs/Wst.9/KT. March 31st 1933. Westinghouse Brake & Saxby Signal Co.Ltd, 82, York Road, King's Cross, London. W.1. Dear Sirs, Your Ref. 18995/R. We regret that we have no record of the German… | ||
| img181 | Calibration and accuracy issues of Bensport speedometers. | ||
| View original record | X1807 By/CGH. From Hs/Wst. c. to By/RD. c. to E. c. to Wor. Hs/Wst.7/MA.5.3.33. BENSPORT SPEEDOMETERS. The Bensport speedometer revs per mile figures as given on the drawing do not agree with actual… | ||
| img182 | Request to the Experimental Department to calibrate two temperature warning devices. | ||
| View original record | 00 53678/29-5-33. Experimental Dept. Mr. West, Temperature Warning Devices to L.O.P. D52984, 53536, 53304. Will you please calibrate the two devices as above, such that the green & red lamps light at… | ||
| img183 | Letter to S. Smith & Sons Ltd. regarding errors found in revolution indicators for Bentley chassis. | ||
| View original record | 86004 Hs/Wst.J/MA. May 30th., 1933. Messrs. S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. Revolution Indicators for Bentley Chassis. Dear Sirs, We have been checking over the rev counters… | ||
| img184 | Letter to Messrs. North & Sons Ltd. regarding test results of a sample speedometer and rev counter for a Bentley chassis. | ||
| View original record | .86129. HS/Wst.11/MA. May 31st., 1933. Messrs. North & Sons, Ltd., Whippendell Road, WATFORD. Watford Speedometer and Rev Counter for Bentley Chassis. Dear Sirs, We have now tested the sample… | ||
| img185 | Letter from North & Sons, Ltd. arranging a meeting to discuss a speedometer and rev counter for a Bentley Chassis. | ||
| View original record | SPEEDOMETERS 86129 & MAGNETOS. The BRITISH MADE Watford NORTH & SONS, LTD. H. TANSLEY WITT, F.C.A. RECEIVER & MANAGER. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD. 4422 (2 Lines) WHIPPENDELL ROAD,… | ||
| img186 | Letter from S. Smith & Sons acknowledging an inquiry about A.T. Revolution Indicators for Bentley Chassis. | ||
| View original record | S. SMITH & SONS (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (10 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.… | ||
| img187 | The calibration test results for a temperature warning device. | ||
| View original record | Mr Mansell A.I.D. From Hs/Wst. 53875 Hs/Wst.1/MA.7.6.33 TEMPERATURE WARNING DEVICE TO LOP's D.52984, 53536 AND 53304. We have now calibrated this device and the following is the result of our tests:-… | ||
| img188 | Reporting a speedometer reading discrepancy due to its steel mounting plate and requesting new plates made of Phosphor Bronze for trial. | ||
| View original record | x6023 RHC. From Hs/Wst. Hs/Wst.5/MA.21.6.33. SPEEDOMETER & REV COUNTER MOUNTING PLATE. We have found a serious discrepancy between the makers calibrated figures and the M.P.H. figures checked by… | ||
| img189 | The testing and modification of a Watford experimental speedometer for a Bensport chassis. | ||
| View original record | 86129 Roy. From Ha/Wst, c. to G/MT. c. to D/BP. Ha/Wst.1/MA.27.6.33. WATFORD EXPERIMENTAL SPEEDOMETER FOR BENSPORT CHASSIS. We are sending into the Stores a Watford Speedometer which Messrs.Norths… | ||
| img190 | Letter from AC-Sphinx offering their newly manufactured magnetic speedometers for testing. | ||
| View original record | TELEGRAMS: SPHINX, BIRMINGHAM. TELEPHONE: VICTORIA 2742-3-4. PRIVATE BRANCH EXCHANGE. x1807 THE AC-SPHINX SPARKING PLUG CO. LTD. DIRECTORS: N. F. STOCKBRIDGE, W. O. KENNINGTON. C. J. BARTLETT.… | ||
| img191 | Bentley speedometer calibrations and the unresolved issue of tyre selection. | ||
| View original record | ROY. C. & C. WST. C. Hs. 186065. BY.6/G.30.6.33. BENTLEY - SPEEDOMETER CALIBRATIONS. Referring to Roy.7/MG.28.6.33. and Hs/Wst. 2/KT.29.6.33. it is agreed that Wst. supplied us on the 28th June with… | ||
| img192 | Bentley speedometer calibrations regarding tyre variations and a rev counter red segment recommendation. | ||
| View original record | x bobs! To By. from Hs/Rn. c. to C. c. to Wor. c. to ROY. Hs/Rn.1/KT.1.7.33. BENTLEY - SPEEDOMETER CALIBRATIONS. With reference to BY.6/G.30.6.33. The figures given in Hs/Wst.3/KT.28.6.33. were for… | ||
| img193 | Letter to Messrs. North & Sons Ltd. regarding the incorrect calibration of a Watford Speedometer. | ||
| View original record | x6129. Ha/Wst.3/MA. July 1st., 1933. Messrs. North & Sons Ltd., Whipperdell Road, Watford. Watford Speedometer. Dear Sir, We do not seem to be getting much satisfaction with regard to the correct… | ||
| img194 | Requesting the return of a Watford Speedometer to North & Sons for correct calibration. | ||
| View original record | x6129 Roy. From Hs/Wst. c. to C/MT. c. to D/BP. Hs/Wst.6/MA.1.7.33. WATFORD SPEEDOMETER. Will you please return the above instrument to Messrs. North & Sons for correct calibration see our letter of… | ||
| img195 | Letter to the AC-Spinx Sparking Plug Co. Ltd. regarding a request for a speedometer sample for inspection and testing. | ||
| View original record | x1807 Hs/Wst.4/MA. July 3rd., 1933. The AC-Spinx Sparking Plug Co.Ltd., Bradford Street, Birmingham, 12. Dear Sirs, Re. Speedometers. Replying to your letter of the 29th., inst. ref. NFS/NA. We are… | ||
| img196 | Letter from North & Sons, Ltd. regarding the recalibration and return of a speedometer. | ||
| View original record | THE BRITISH MADE Watford SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. H. TANSLEY VITT, F.C.A. RECEIVER & MANAGER. WHIPPENDALL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD, 4422 (2… | ||
| img197 | Querying if a previous instruction to hold an invoice from S. Smith & Sons for an Indicator Meter and Generator still applies. | ||
| View original record | x600v' Hs/Wst. G/Gn/CA.10/DN.6.7.33. Further to your memo. Hs/Wst.5/MA.27.4.33. addressed to Roy. instructing that S. Smith & Sons (M.A) Ltd's invoice, dated the 20th. April, 1933 on which we are… | ||
| img198 | The ongoing testing of an Electrical Revolution Indicator and holding the invoice in abeyance. | ||
| View original record | x6005' G/Gn. From Hs/Wst. Hs/Wst.1/MA.7.7.33. With reference to your G/Gn/CA.10/DN.6.7.33. regarding the Electrical Revolution Indicator. This Indicator is still being tested out, and we are not in a… | ||
| img199 | Letter from the AC-Sphinx Sparking Plug Co. Ltd. confirming a sample of a speedometer is being prepared. | ||
| View original record | TELEGRAMS: SPHINX, BIRMINGHAM. TELEPHONE: VICTORIA 2742-3-4. PRIVATE BRANCH EXCHANGE. X1807 THE AC-SPHINX SPARKING PLUG CO. LTD. DIRECTORS: N. F. STOCKBRIDGE. W. O. KENNINGTON. C. J. BARTLETT.… | ||
| img200 | Recalibrating speedometers on the 20/25 HP chassis due to customer complaints about them reading too fast. | ||
| View original record | WST See me HS Hs. X1807 BY/Cgh.1/G.11.7.33. 20/25 HP. CHASSIS - SPEEDOMETERS. ---------------------------- We understand from the Repair Department that quite a number of customers complain about the… | ||
| img201 | Speedometer calculations and adjustments for the 20/25 chassis. | ||
| View original record | x1807 By/CGH. From Hs/Wst. Hs/Wst.7/MA.11.7.33. 20/25 CHASSIS SPEEDOMETERS. Referring to your By/CGH.1/G.11.7.33., our calculations for the 20/25 chassis with 11/50 axle, 19" roadwheels and Dunlop… | ||
| img202 | Requesting Bentley revolution indicators be ordered to read 2% fast to account for accuracy and temperature errors. | ||
| View original record | x6004 By. From Hs/Wst. c. to Wor. c. to Sg. c. to E. c. to PN. Hs/Wst.2/MA.12.7.33. BENTLEY REVOLUTION INDICATOR. Further to Hs/Rm.1/KT.1.7.33., in which we asked for a red segment to be incorporated… | ||
| img203 | Letter regarding the specifications and approval of speedometers from S. Smith & Sons Ltd. | ||
| View original record | Hs/Mr. West. 86129 Roy/AW.7/IB. 12.7.33. We received from Messrs. S. Smith & Sons Ltd. on the 7th inst. 6 - Speedometers - DB.87. Such Instruments being fitted with hand made dials, such dials being… | ||
| img204 | Instructions for checking the revolution indicator and speedometer on every Bentley chassis. | ||
| View original record | 86004 Mx. From Ha/Wst. c. to Ey. c. to Wor. c. to EP. Ha/Wst.3/MA.13.7.33. BENTLEY REVOLUTION INDICATOR AND SPEEDOMETER. It is important that a careful check be made of the above instruments on every… | ||
| img205 | New electrical revolution indicator or tachometer, with attachments. | ||
| View original record | S/W To Hs/Wst. from F. Copy to Wor. 81807. F4/JL.15.7.33. NEW ELECTRICAL REVOLUTION INDICATOR OR TACHOMETER. Please see the attached copy of a letter, together with the descriptive matter referred to,… | ||
| img206 | Letter proposing a new electrical speedometer for potential use in motor-cars and aero engines. | ||
| View original record | COPY 11, Cranbrook Road, Redland, BRISTOL, 6. 14/7/33 Col. L.F.R.Pell, Rolls-Royce, Ltd., 14/15, Conduit St., London, W.1. Dear Sir, I have been referred to you by the Bristol Aeroplane Co., with… | ||
| img207 | Solutions for adapting Bentley tail lights for Continental use. | ||
| View original record | 86129 To Ex. from E. E.10/HP.15.7.33. c.c. Eg. For. Hs. By. EV. WST re Tail Light for Continental use on Bentley Car. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- The… | ||
| img208 | Required alterations for an experimental Watford Revolution Indicator. | ||
| View original record | 86008 Roy. From Hs/Wst. c. to G/MT. c. to D/BP. Hs/Wst.2/MA.17.7.33. WATFORD REVOLUTION INDICATOR. We are sending into the Stores an experimental Bentley revolution indicator combined with clock which… | ||
| img209 | Request to order a Klaxon electric motor for a Bensport revolution counter test rig. | ||
| View original record | X1207. EJJ. From Hs/Wst. c. to Hy. Hs/Wst.1/MA.19.7.33. BENSPORT REVOLUTION COUNTER TEST RIG. Will you please order for us for the above rig one Klaxon type 10197 Synchronos electric motor for the 200… | ||
| img210 | Instruction to fit a Watford speedometer and rev indicator from chassis IB.IV to the Green Bentley 2.B.IV chassis. | ||
| View original record | 86129. RHC. From Hs/Wst. Hs/Wst.3/MA.19.7.33. WATFORD SPEEDOMETER AND REV INDICATOR FOR BENSPORT CHASSIS. Will you please arrange for the above instruments removed from IB.IV. to be fitted to the… | ||
| img211 | Proposed electrical revolution indicator, its potential applications and limitations. | ||
| View original record | 81907. F. From Hs/Wst. Hs/Wst.4/MA.20.7.33. ELECTRICAL REVOLUTION INDICATOR. Answering your F.4/JL.15.7.33., this invention appears very interesting and we intend to ask Mr.Fedden of the Bristol Co.,… | ||
| img212 | Outlining testing parameters and acceptable limits for the Bentley Revolution Indicator. | ||
| View original record | X1307 Hs/Wst. (struck through) Wor. (struck through) Bp. (struck through) BY/RD3/W.20.7.33. Bentley Revolution Indicator. With reference to Hs/Wst3/MA.13.7.33. stating that rev.counters should be… | ||
| img213 | Clarifying the maximum instrument temperature and RPM limits for the Bentley Rev Counter. | ||
| View original record | 86004 By/RD. From Hs/Wst. Hs/Wst.5/MA.21.7.33. BENTLEY REV COUNTER. In our Hs/Wst.2/MA.12.7.33., we omitted to state in the last paragraph that the limits given should be at a maximum instrument… | ||
| img214 | Internal order for a synchronous electric motor for a Bentley revolution counter test rig. | ||
| View original record | Roy from EJJ. c to Millwrights c to Hs/Wst. X 1807 o/835 EJJ4/WB21.7.33. BENTLEY REVOLUTION COUNTER TEST RIG Please order from Messrs Klaxon Ltd., 36, Blandford Street, London, W.1. 1 - Klaxon type… | ||
| img215 | New electrical revolution indicator or tachometer. | ||
| View original record | S/W To Hs/Wst. from F. Copy to Wor. x1907. F7/JL.21.7.33. NEW ELECTRICAL REVOLUTION INDICATOR OR TACHOMETER. W. G. BIRD. With reference to our F4/JL.15.7.33, please see the attached copy of a further… | ||
| img216 | Letter regarding drawings for a tachometer that operates on a frequency measurement principle rather than voltage. | ||
| View original record | COPY. 11, Cranbrook Road, Redland, Bristol, 6. 17.7.33. Lieut. Colonel L.F.R. Fell, Rolls-Royce, Ltd., 14, Conduit Street, W.1. Dear Sir, Ref. F3/JL.15733. I thank you for your letter as above and in… | ||
| img217 | The testing and rejection of faulty Bentley speedometers submitted for approval. | ||
| View original record | 81807. Roy/HAW. From Hs/Wst. c. to By/RD. Hs/Wst.2/MA.22.7.33. BENTLEY SPEEDOMETERS. We have now checked over the four instruments submitted by the A.T. Co., for our approval before they make the… | ||
| img218 | Letter to W.G. Bird regarding an Electrical Revolution Indicator, enclosing pamphlets and drawings. | ||
| View original record | <1807. Hs/Wst.1/MA. July 24th., 1933. W.G.Bird Esq., 13, Cranbrook Road, Redland, BRISTOL, 6. Dear Sir, With reference to correspondence which has passed between you and our Lieut. Colonel L.F.R.… | ||
| img219 | Speedometer calibration calculations for a Bentley 3 1/2 Litre chassis based on different tyre and axle configurations. | ||
| View original record | 81807 BENTLEY 3 1/2 LITRE CHASSIS SPEEDOMETER CALIBRATION Effective tyre circumference (found by actual trial) = 90.375" with India tyres 35 lbs per sq.in. 89.375" " Goodyear " 35 " " " 90.875" "… | ||
| img220 | Recommendation to purchase two types of electrical revolution indicators for testing on aero engine test beds. | ||
| View original record | 86155 EJJ. From Hs/Wst. Hs/Wst.8/MA.27.7.34. AERO ENGINE REVOLUTION INDICATORS. We have as you know considered that the electrical revolution indicator would be preferable for use on the test beds.… | ||
| img221 | Letter to Messrs North & Sons Ltd. regarding a faulty Watford Revolution Indicator for a Bentley chassis. | ||
| View original record | 86005 Experimental Dept. Hs/Wst.5/KT. August 10th 1933. Messrs North & Sons Ltd., Whippendell Road, Watford. Dear Sirs, Re. Watford Revolution Indicator. We beg to refer you to the combined revolution… | ||
| img222 | Letter from North & Sons, Ltd. regarding the testing and calibration of a Watford Revolution Indicator. | ||
| View original record | x6005 SPEEDOMETERS The BRITISH MADE Watford & MAGNETOS. NORTH & SONS, LTD. H. TANSLEY WITT, F.C.A. RECEIVER & MANAGER. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD, 4422… | ||
| img223 | Letter from North & Sons Ltd regarding the testing and accuracy of an intermittently operated counter. | ||
| View original record | NORTH & SONS Ltd Continuation Sheet No. 1. 14th August, 1933. Messrs. Rolls Royce Ltd., possibility of an incorrect reading arising through an intermittently operated counter. We trust that the… | ||
| img224 | Return of a faulty Watford revolution indicator clock from a Bentley chassis for repair. | ||
| View original record | x6005! Roy. From Hs/Wst. c. to D/BP. c. to G/MT. Hs/Wst.11/MA.5.9.33. WATFORD REVOLUTION INDICATOR FOR BENTLEY CHASSIS. We are sending into the Stores a Watford rev clock which we are testing in the… | ||
| img225 | Confirming arrangements to mount a new Klaxon Synchronous motor for a speed counter calibration test rig. | ||
| View original record | EJJ. From Hs/Wst. 81807 Hs/Wst.5/MA.12.9.33. SPEED COUNTER CALIBRATION TEST RIG. As arranged with you we confirm that you will arrange to mount the new Klaxon Synchronous motor we have now received… | ||
| img226 | Agreement with Messrs. Smith to exhibit a 20/25 HP instrument patch but not a Bentley one. | ||
| View original record | S/W....Hs/Wst c. to Wor. c. to Cx. 86004 C13/C9.10.33 SMITH STAND - R-R & BENTLEY INSTRUMENT PATCH. ----------------- With reference to your Hs/Wst3/MA6.10.33, we enclose copy of letter we have sent… | ||
| img227 | Letter concerning the exhibition of a Rolls-Royce and a Bentley Instrument Patch at Olympia. | ||
| View original record | C12/C91033 9th October 1933. C.W.Nichols Esq. Messrs.S.Smith & Sons. Ltd., Cricklewood Works, N.W.2. Dear Mr.Nichols, Our Works have referred to us the question of your exhibiting a 20/25 h.p.… | ||
| img228 | Visit to A.T.Co.Ltd to dispute an extra charge for a modification to Bentley rev counters. | ||
| View original record | 86004. W/S. Hn. From Hs/Wst. Hs/Wst.1/MA.10.10.33. BENTLEY REV COUNTERS. Referring to your Hn.7/I/9.10.33 we hope to pay a visit to the A.T.Co.Ltd., on Thursday morning next and we will raise the… | ||
| img229 | Acceptance of costs for alterations to Bentley Rev. Counters. | ||
| View original record | 15 S/W. 26004. Hn14/I/16-10-33. Hs/Wst3/KT.14.10.33. BENTLEY REV. COUNTERS. From what you say we conclude we cannot hold the A. T. Co. responsible for the alterations to the dials of the first fifteen… | ||
| img230 | Inquiry regarding the minimum distance between instruments to prevent magnetic interference, specifically the speedometer, ammeter, and petrol gauge. | ||
| View original record | URGENT WST 81807 Hs/Wst. BY/RD2/W.29.12.33. Proximity of Speedometer to other instruments. Will you please let us know the minimum distance that must be allowed between the magnetic type speedometer… | ||
| img231 | Speedometer revolutions per mile for a 40/50 HP car, requesting a correction to a drawing. | ||
| View original record | By/CGH. From Hs/Wst. 81807 Hs/Wst.4/MA.2.1.34. 40/50 HP. SPEEDOMETER. With reference to the above we have already rolled a 40/50 car with 19" x 7" tyres and the road wheel revs per mile are 640. For… | ||
| img232 | Quotation from Dobbie McInnes & Clyde Ltd for a 'Farnboro' Electric Indicator' and associated Disc Valve Units. | ||
| View original record | Telegrams-"COMPASS" GLASGOW. Telephone - 2912 CENTRAL BRITISH & FOREIGN GOVERNMENT CONTRACTORS Y4580 BRANCHES: SO. SHIELDS, 42, Coronation St. LONDON, 9, Billiter Sq., E.C. LIVERPOOL AGENCY, 25, So.… | ||
| img233 | Letter to Dobbie, McInnes & Clyde Ltd. regarding a trial of a new 'A' Disc Valve Unit. | ||
| View original record | J 4580 Expl. Dept. HS/CHP.4/MJ. 8th. January 1934. Your ref: ENG/J.McC/IGJ. Messrs. Dobbie, McInnes & Clyde Ltd., 57, Bothwell Street, GLASGOW, C.2. Dear Sirs, We are in receipt of your letter of the… | ||
| img234 | Speedometer calibration for the 40/50 HP chassis, considering different wheel sizes and customer complaints. | ||
| View original record | WST Hs. BY/Cgh. 8/G. 12.1.34. 40/50 HP. CHASSIS - SPEEDOMETER. Before we introduced the contracted speedometer scale, the instruments were calibrated for 785 revs. per mile and the road wheels were… | ||
| img235 | Request to modify the dials of Bentley Revolution Indicators to show a red triangular space. | ||
| View original record | WST 6004. S/W To Hs/Wst. from Sg. re Bentley Revolution Indicators. Sg3/E18.1.34 Copy to Wor. I should like to see the dials arranged with the triangular space all red between 4,500 revs. and 5,000… | ||
| img236 | Return of a Smith Electrical Rev Indicator to the manufacturer for replacement. | ||
| View original record | 86004. Roy. From Hs/Wst. c. to D/BP. c. to C/MT Hs/Wst.4/MA.19.1.34. SMITH ELECTRICAL REV INDICATOR. We are sending into the Stores a generator and instrument sent to us by Messrs. Smiths for test… | ||
| img237 | Letter to S. Smith & Sons Ltd. returning an electrical rev counter due to large temperature variations and requesting a new model for testing. | ||
| View original record | 86004. Hs/Wst.3/MA. 19th January, 1934. Messrs.S.Smith & Sons Ltd., Cricklewood Works, London, N.W.2. Electrical Rev Counter. Dear Sir, During the visit of the undersigned to your works last week it… | ||
| img238 | Letter from S. Smith & Sons regarding the return of a sample Electrical Rev Indicator and the promise of a new one. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY rl004 TELEPHONE: GLADSTONE 3333 (15 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. Smith & Sons (Motor Accessories) Ltd CABLES: SPEEDOFAC, LONDON.… | ||
| img239 | Internal request to order a combined speedometer and instrument patch for an Essex Terraplane car. | ||
| View original record | 81907 Roy. From Hs/Wst. Hs/Wst.7/MA.30.1.34. Will you please order for us from Messrs. Shaw & Kilburn Ltd., 117 Great Portland Street, London, W.1 one combined speedometer and instrument patch as… | ||
| img240 | Cancellation of a speedometer order for a Terraplane if it needs to be imported from the U.S.A. | ||
| View original record | 81907. Roy/F. From Hs/Wst. Hs/Wst.8/MA.7.2.34. With reference to the attached letter, the speedometer require is the one as fitted to the American made bodies on the Terraplane. If Shaw & Kilburn have… | ||
| img241 | Correspondence regarding a sample rev-counter dial for Bentley Revolution Indicators sent for inspection. | ||
| View original record | 86004 Sg. From Hs/Wst. c. to Wor. Hs/Wst.3/MA.9.2.34. BENTLEY REVOLUTION INDICATORS. With further reference to your Sg.3/E.18.1.34., we are sending you herewith a sample rev-counter dial for your… | ||
| img242 | The introduction of a new sample dial for Bentley Revolution Indicators. | ||
| View original record | 86004 To Hs/Wst from Sg. re Bentley Revolution Sgl/E12.2.34 Copy to Wor. Indicators. I am in receipt of Hs/Wst.3/MA.9.2.34. The sample dial carries out just what I had in mind and I should like to see… | ||
| img243 | Alteration and production of a revolution indicator dial for the Bentley chassis. | ||
| View original record | 86004 By. From Hs/Wst. c. to Wor. c..to E. Hs/Wst.10/MA.12.2.34. BENTLEY REVOLUTION INDICATORS. In accordance with instructions received from Sg. we submitted to him a sample revolution indicator dial… | ||
| img244 | Letter from Hasler Telegraph Works discussing the testing and adjustment of Hasler Revolution Indicators. | ||
| View original record | TELEPHONE N° VICTORIA 7575/6. TELEGRAPH ADDRESS "SIVAD, LONDON". HASLER TELEGRAPH WORKS ERNEST E. LLOYD. F. MASON. 26, VICTORIA STREET, WESTMINSTER. /86004 WST Wst from AC 2/5/34 Messrs. Rolls-Royce… | ||
| img245 | Page 2 of a letter from Hasler Telegraph Works regarding a possible error in revolutions per minute during frequency adjustment. | ||
| View original record | -2- reverse results were noted when the load on the power station increased after the luncheon interval. According to calculations there was a possible error of three revolutions per minute in 1200… | ||
| img246 | The overhaul of a unique, special lightened type Bentley combined revolution indicator and clock. | ||
| View original record | Roy. From Ha/Wst. c. to G/MT. c. to D/BP. 86004 Ha/Wst.1/MA.29.5.34. R5741 BENTLEY REV COUNTER. We are sending into the stores one special lightened type Bentley combined revolution indicator and… | ||
| img247 | The modification and calibration of a Bentley Revolution Indicator. | ||
| View original record | Roy. From Hs/Wst. c. to C/MT. c. to D/BP. r6004. Hs/Wst.8/MA.6.6.34. BENTLEY REVOLUTION INDICATOR NO.G.854. We are sending into the stores the above rev counter. Will you please arrange to return this… | ||
| img248 | Letter from Kollsman Instrument Co. regarding the redesign and pricing of a type 70-05 tachometer. | ||
| View original record | DICKENS 6 3838 3839 S 1380. CABLE ADDRESS "KOLLINST", NEW YORK KOLLSMAN INSTRUMENT COMPANY, INC. AIRCRAFT INSTRUMENTS 1 JUNIUS STREET BROOKLYN, N. Y. June 13, 1934. WST Rolls-Royce Limited, Derby,… | ||
| img249 | Request to obtain a speedometer test rig with a 2:1 reduction gear from Jaeger Instruments Ltd. | ||
| View original record | 81809 EJJ. From Hs/Wst. Hs/Wst.7/MA.7.9.34. SPEEDOMETER TEST RIG. Will you please obtain for us our speedometer test rig from Messrs.Jaeger Instruments Ltd., one small two speed reduction gear ratio… | ||
| img250 | Request to process payment for an invoice received from S. Smith & Sons for a Revolution Indicator. | ||
| View original record | Hs/Wst. C to Roy. WST 86704. G/Cam/CA.9/DN.15.10.34. We have received an invoice from S. Smith & Sons (M.A) Ltd., dated the 8th. inst. on which we are charged £6/10/0d. less 33 1/3%, plus 1/1d.… | ||
| img251 | Oil leak on the Bentley speedometer drive, referencing a similar issue on a 20/25 model. | ||
| View original record | 86065 To Bty from HDY. c. For. W. Hs. Da. RHO. Ex. HDY.2/HP.17.10.34. Speedometer Drive - Bentley. With regard to the oil leak on the 20/25 to which we refer in our Hdy.1/HP.13.10.34, will you kindly… | ||
| img252 | Clarifying that a revolution indicator from Messrs. Smiths belongs to the Plant Department. | ||
| View original record | G/CAM. From Hs/Wst. c. to Roy. 86004 Hs/Wst.3/MA.18.10.34. Referring to your G/CAM/CA.9/DN.15.10.34., this revolution indicator was not order by us from Messrs.Smiths and we understand it belongs to… | ||
| img253 | Speedometer change for a Streamlined Bentley due to a new gear ratio. | ||
| View original record | 16065. RHC. From Hs/Wst. Hs/Wst.5/MA.5.11.34. STREAMLINED BENTLEY. When the ratio on this car is changed to 11/43 will you please arrange for the speedometer to be changed to suit the new ratio. We… | ||
| img254 | Revised specifications for the Spectre's servo and speedometer drive. | ||
| View original record | To - RM. Copy to [REDACTED]/Ha/WST. [Handwritten]: WST HDY.1/MN. 9/11/34. [Handwritten]: 7606S. Servo & Speedometer Drive - Spectre. N Sch. 4257 herewith gives the revised servo and speedometer drive… | ||
| img255 | Request to determine the wheel revolutions per mile for a 'Spectre' chassis with specific tyres for speedometer calibration. | ||
| View original record | 86065 Hs/FD. From Hs/Wst. Hs/Wst.12/MA.19.11.34. SPECTRE SPEEDOMETER. Will you please arrange to roll the "Spectre" chassis with 7" x 18" Dunlop Fort tyres inflated to 32 lbs/sq.in. pressure in order… | ||
| img256 | Letter to A.T. Speedometer Co. Ltd. regarding progress on a new speedometer and magnetic interference testing on another model. | ||
| View original record | Y6051. Hs/Wst.1/MA. 2nd January, 1935. Messrs.A.T.Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr.H.R.Buckland. Dear Sir, We should be glad to know how… | ||
| img257 | Letter from a speedometer supplier regarding magnetic interference tests and a request to borrow an instrument. | ||
| View original record | 86051. The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A.… | ||
| img258 | Request to fit a new type Bentley speedometer and rev counter to vehicle reference 5.B.IV. | ||
| View original record | 6051. RHC. From Hs/Wst. Hs/Wst.4/MA.9.1.35. We have now received the new type Bentley speedometer and rev counter incorporating non-interference magnets and new type trip and total mileage recorder.… | ||
| img259 | Letter responding to an enquiry about a Graham Paige speedometer, explaining why one cannot be loaned. | ||
| View original record | 86081 Hs/Wst.1/MA. 15th January, 1935. Mr. C.W. Nichols, Messrs. S. Smith & Sons, Ltd., Cricklewood Works, London, N.W.2. Dear Mr. Nichols, Regarding the Graham Paige speedometer we are afraid that it… | ||
| img260 | Letter from S. Smith & Sons regarding a Graham Paige speedometer and damping issues in sample instruments. | ||
| View original record | Handwritten: Y 6081. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES:… | ||
| img261 | Speedometer calibration data for a standard 20/25 chassis with 11/50 axle and 19' tyres. | ||
| View original record | V6051. R.R. STANDARD 20/25 CHASSIS SPEEDOMETER CALIBRATION. REVS PER MILE 836 11/50 AXLE 19" TYRES. Correct revs. 140 279 419 558 700 838 978 1117. DIAL READING. FLEX REVS PER MIN. REQUIRED AT DIAL… | ||
| img262 | Letter from A.T. Speedometer Co. regarding modifications to returned instruments and upcoming samples. | ||
| View original record | The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img263 | Continuation letter from A. T. Speedometer Co., Ltd. regarding a three-month timeframe. | ||
| View original record | A. T. SPEEDOMETER CO., LTD. CONTINUATION. -2- Messrs. Rolls-Royce Ltd. 29th January, 1935. will take at least three months. Always at your service, We beg to remain, Yours faithfully, For THE A.T.… | ||
| img264 | Return of Bentley A.T. instruments for conversion to an up-to-date specification. | ||
| View original record | Roy. From Hs/Wst. c. to G/MT. c. to D/BP. 86051. Hs/Wst.1/MA.4.2.35. BENTLEY A.T. INSTRUMENTS. We are sending into the stores a Bentley A.T. Rev-clock No. EX6 and a speedometer No.EX2. Will you please… | ||
| img265 | Expressing concern over delays in developing legible speedometers for R-R and Bentley cars. | ||
| View original record | [Handwritten: Rm Y6051.] URGENT. Cx3/KW8.2.35. S/W. Rm. C. to Sg. C.W. ROY. Speedometers for R-R and Bentley Cars. We are getting very concerned at the delay in obtaining speedometers on which the… | ||
| img266 | Proposed improvements to vehicle instruments for Spectre, R-R, and Bentley models. | ||
| View original record | Cx3/KWS.2.35. - 2 - (b) Prevention of magnetic interference. } Spectre (c) Concave lighting. (d) Instruments of lighter weight. (e) Instruments with, or without, bezel and glass. Of these, we… | ||
| img267 | Customer complaints about unreadable mileage figures and the need for immediate improvements. | ||
| View original record | Cx3/KW8.2.35. - 3 - and tell them when we wish deliveries to commence. Will you please let me know, if possible by return, if you see any reason why we should not to this. We are getting very tired of… | ||
| img268 | Stock and order status of speedometers for R.R and Bentley Chassis. | ||
| View original record | W/S WST 76081 To Cx. from ROY. c. to SG. c. to Hs/Wst. ROY6/MG11.2.35 Speedometers for R.R and Bentley Chassis CX3/KW8.2.35 - As far as Stocks, and instruments on order for the above are concerned,… | ||
| img269 | The return of two A.T. speedometers for modification. | ||
| View original record | Roy. From Hs/Wst. c. to G/MT. c. to D/BP. 76051. Hs/Wst.2/MA.13.2.35. A.T. SPEEDOMETERS. We are sending into the stores two A.T. Speedometers Nos. F.429 and I.306. Will you please arrange to return… | ||
| img270 | Speedometer improvements and supply issues from Smiths for various car models. | ||
| View original record | W/S - Cx. c. to Sg. c. to Roy. 86051. Hs/Rm.24/KW.13.2.35. Speedometer for R.R. & Bentley Cars. Replying to Cx.3/KW.8.2.35. We have been into the instrument question and the facts appear to be these -… | ||
| img271 | Proposed modifications for an A.T. Speedometer. | ||
| View original record | 16051. To Sg. From Hs/Wst. c. to Wor. c. to E. c. to By. c. to Gx. A.T. SPEEDOMETER. The modified speedometers which are proposed for production on R.R. and Bentley cars will have the following new… | ||
| img272 | Correspondence regarding speedometers for R-R and Bentley cars. | ||
| View original record | S/W. Hs/Rm. c. to Sg. C. " ROY. 46081. Cx3/KW15.2.35. Speedometers for R-R and Bentley Cars. Many thanks for Hs/Rm.24/KW13.2.35. Please note copy of letter we have to-day written to Smiths,having… | ||
| img273 | Letter to S. Smith & Sons regarding speedometer improvements, specifically requesting larger trip figures for Rolls-Royce and Bentley models. | ||
| View original record | Cx17/KW14235 Messrs S.Smith & Sons(Motor Accessories) Ltd. Cricklewood Works, N.W.2. 14th February, 1935. For the attention of Mr.Nichols. Dear Sirs, re-Speedometers. With reference to our… | ||
| img274 | The concluding page of a letter from the Sales Manager regarding the introduction of larger trip figures. | ||
| View original record | - 2 - Cx17/KW14235. introduce the larger trip figures, which we are so anxious to have. We should like to have your early reply on this important matter. Yours faithfully, for ROLLS-ROYCE LTD. Sales… | ||
| img275 | Letter to A.T. Speedometer Co. Ltd. regarding the modification of lightweight speedometers and rev-counters. | ||
| View original record | Hs/WST. r6051. BY/RDl/W. 16th. February, 1935. The A.T. Speedometer Co., Ltd., Chronos Works, North Circular Road, London N.W.2. FOR THE ATTENTION OF MR. BUCKLAND. Dear Sirs, With reference to your… | ||
| img276 | Letter from the A.T. Speedometer Co. Ltd. discussing modifications to instrument dials, drives, and magnets. | ||
| View original record | Copies to:- Rolls-Royce, Derby. Mr. Nichols, Mr. Lenoir, Mr. Arrowsmith, Mr. Dorer. 6051. HRB/B. 18th February, 1935. Messrs. Rolls-Royce Ltd., 14-15, Conduit Street, London, W. 1. For the attention… | ||
| img277 | Letter from The A.T. Speedometer Co. confirming a telephone conversation and enclosing a copy of another letter. | ||
| View original record | The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img278 | Standardization of larger trip figures on speedometers for R-R and Bentley chassis. | ||
| View original record | S/W. C. to HS/Wst. WST r6051 Cxl/KW19.2.35. Dict.18.2.35. Speedometers for R-R and Bentley Chassis. ROY8/MG11.2.35. You are of course aware of our anxiety to introduce the larger trip figures as… | ||
| img279 | Correspondence concerning proposals for speedometers with larger trip figures for chassis. | ||
| View original record | WST rl 6051 ROY.4/P. 20.2.35. c. to Sg. c. to Hs/Wst. c. to Dy. re SPEEDOMETERS FOR ROLLS-ROYCE & BENTLEY CHASSIS WITH LARGER TRIP FIGURES. With reference to Cx.1/KW. 19. 2.35. We are pressing Messrs.… | ||
| img280 | Speedometer case sizes, larger trip figures, and concave lighting for R-R and Bentley chassis. | ||
| View original record | r6065. S/W. c. " Hs/Wst. Speedometers for R-R and Bentley Chassis with Larger Trip Figures. ROY.4/P20.2.35. Cxll/KW21.2.35. I had three separate conversations yesterday with Mr.Buckland on this… | ||
| img281 | Timelines for introduction and concave lighting for instrument panels. | ||
| View original record | -2- Cxll/KW21.2.35. a further month for introduction, i.e. four months from date of instructions in stead of the three required only for the larger trip figures. Would you also please state whether it… | ||
| img282 | Speedometers with larger trip figures for R-R and Bentley chassis, and associated delivery schedules. | ||
| View original record | WST Y6051 W/S To Gx. from ROY. o. to BG. c. to Hs/Wst c. to BY ROY1/MG23.2.35 Speedometers for R-R and Bentley Chassis with larger Trip Figures -------------------------------------- Thank you for… | ||
| img283 | Letter from S. Smith & Sons regarding a requested modification to speedometers for larger trip figures. | ||
| View original record | Copy of Letter. From. S.SMITH & SONS (MOTOR ACCESSORIES) LTD S.1 22nd February.1935 Messrs. Rolls-Royce Ld. DERBY Dear Sirs, Re: Speedometers for Rolls-Royce and Bentley Chassis with larger Trip… | ||
| img284 | Letter to S. Smith & Sons regarding the cost implications of a new shrouded magnet speedometer design. | ||
| View original record | Copy to Cx, SG, Hs/Wst. BY Ref: ROY2/MG Your Ref: S.1 February 23rd.1935 Messrs. S.Smith & Sons (Motor Accessories) Ltd Cricklewood Works, LONDON N.W.2 Dear Sirs, Re Speedometers for Rolls-Royce and… | ||
| img285 | The design and supply of speedometers with larger trip figures and concave lighting for RR and Bentley chassis. | ||
| View original record | 76051. BY/Cgh.S/G. 22.2.35. Rm W.E. (O...) G. Rg. C. Hs. SPEEDOMETERS FOR RR. and BENTLEY CHASSIS WITH LARGER TRIP FIGURES. With reference to Cx.11/Kh. 21.2.35. and dealing in the first place with Mr.… | ||
| img286 | Order for two rev counters reading up to 5000 R.P.M. | ||
| View original record | r6051 Roy. From Hs/Wst. Hs/Wst.7/MA.25.2.35. REV COUNTERS. Please order for us from the A.T.Co., two Rev counters reading up to 5000 R.P.M. and to be driven at half engine speed, i.e. should read 5000… | ||
| img287 | The introduction of new speedometers with larger trip figures and concave lighting for various car models. | ||
| View original record | WST / 6081. S/W. Hs/Wst. Speedometers for R-R and Bentley Cars. Cx19/KW28.2.35. We were very glad to have the opportunity to-day of seeing the speedometer with larger trip figures and an instrument… | ||
| img288 | Timing and cost for introducing an improvement to the Bentley model, including a shrouded magnet design. | ||
| View original record | - 2 - Will you kindly see if it is possible to adhere to this programme of dates. Re Bentley, this improvement could be introduced on this at the same but not before the 20/25. Perhaps you will let us… | ||
| img289 | Design and layout of instruments with concave dials, including a new speedometer. | ||
| View original record | E. From Hs/Wst. c. to By. c. to Cx. c. to Roy. Y6051 Hs/Wst.8/MA.27.2.35. INSTRUMENTS WITH CONCAVE DIALS. It has been suggested by Rm. that now we have a new speedometer which will not magnetically… | ||
| img290 | Introduction of new speedometers with larger trip figures and concave lighting for RR and Bentley cars. | ||
| View original record | W/S. (Cx) S. Sgy C. Ry c. Hs/Wst. C. Royy Y6051 WST BY/Cgh.9/G. 27.2.35 SPEEDOMETERS FOR RR. and BENTLEY CARS. With reference to Cx.19/KW. 262.2.35. we are pleased to note that it is agreed to… | ||
| img291 | Order for a 'Spectre' speedometer cable. | ||
| View original record | 86051. Roy. From Hs/Wst. Hs/Wst.2/MA.28.2.35. "SPECTRE" SPEEDOMETER CABLE. Will you please issue a covering order for one A.T. Speedometer cable 6' long ordered by telephone for the Spectre chassis.… | ||
| img292 | Speedometers for R-R and Bentley Chassis with larger trip figures. | ||
| View original record | WST x6051 W/B To Cx. from ROY. c. to SG. c. to Hs/Wst. c. to HY. ---------- ROY10/MG6.3.35 ---------- Re Speedometers for R-R and Bentley Chassis with larger trip figures Further to ROY1/MG23.3.35,… | ||
| img293 | Letter from a supplier explaining a delay in quoting for speedometers due to material sourcing issues. | ||
| View original record | Copy of Letter From: S.SMITH & SONS (Motor Accessories) LTD Cricklewood Works, LONDON N.W. 2 S.1 5th March.1935 Messrs. Rolls-Royce Limited DERBY Dear Sirs, Re: Speedometers for Rolls-Royce and… | ||
| img294 | Letter to S. Smith & Sons regarding a supply issue with new magnet steel for speedometers. | ||
| View original record | Ref: HOY9/MC Your Ref: S.1 March 6th.1935 Messrs. S.Smith & Sons (M.A) Ltd Cricklewood Works, LONDON N.W. 2 Dear Sirs, Re: Speedometers for Rolls-Royce and Bentley Chassis with larger trip figures… | ||
| img295 | Visit from S. Smith & Sons to discuss introducing new speedometers with concave dials and larger trip figures. | ||
| View original record | Y6051. W/B----(Gx) ---Sg--- ---F--- c. Hs/Wst. ---Royce--- BY/Cgh.7/G.7.3.35. SPEEDOMETERS FOR RR. and BENTLEY CARS. --------------------------------- Mr. Manwaring (Technical Representative) of… | ||
| img296 | Chassis testing schedules and specifications for instrument panels. | ||
| View original record | - 2 - P.S. The 42nd. chassis in 'U' series should be put on test on the 26th. June, and the 1st. 20/25 HP. chassis in J.2. series on the 6th. July, so that the new instruments will be on the Phantom… | ||
| img297 | Developing larger trip and distance mileage figures for speedometers, noting a competitor has already implemented them. | ||
| View original record | s/w Hs/Wst r6051. To C. from Sgv Copy to HGY. Hs/Wst. Sg6/E7.3.35 With reference to the question of larger trip and distance mileage figures on our speedometers, I was interested to note that the… | ||
| img298 | Introduction of modified speedometers for R-R and Bentley cars. | ||
| View original record | S/W. BY/Cgh. c. to Sg. c. " E. c. " Hs/Wst. c. " ROY. HS/WST WST r6051. Bsl/KW.8.3.35. Speedometers for R-R and Bentley Cars. BY/Cgh7/G7.3.35 We are certainly in agreement that instructions should be… | ||
| img299 | Requesting a reversion to the standard attachment method for speedometer and rev counter drive flex. | ||
| View original record | 6051 By. From Hs/Wst. c. to Roy. Hs/Wst.6/MA.18.3.35. SPEEDOMETERS & REV COUNTERS. Will you please arrange with Messrs. A.T. that they revert to our standard method of attachment for the drive flex.… | ||
| img300 | Complaint about poor speedometer lighting and a request for a correct thermometer due to a new axle fitment. | ||
| View original record | To Hs/Wst. Hs/Rm.10/KW. 24.4.35. B-10-DG. We have had a complaint from this owner that he cannot read his speedometer when travelling through 30 m.p.h. limits at night. Will you please let us have… | ||
| img301 | Request to alter the speedometer calibration and improve instrument panel illumination for chassis B-10-DG. | ||
| View original record | Hd. From Hs/Wst. Hs/Wst.1/MA.25.4.35. 16081 Re. CHASSIS B-10-DG. Will you please arrange for the speedometer on the above chassis to be altered to suit the low geared axle which is to be fitted. The… | ||
| img302 | Letter to A.T. Speedometer Co. Ltd. requesting a form of adjustment for new speedometers. | ||
| View original record | 86051 Hs/Wst.2/MA. 1st May, 1935. Messrs.A.T.Speedometer, Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr.H.R.Buckland. Dear Sir, We do feel that urgent… | ||
| img303 | Request to place an order for a 54' long speedometer flexible drive. | ||
| View original record | 86051 Roy. From Hs/Wst. Hs/Wst.5/MA.2.5.35. Will you please place an order with Messrs.A.T.Speedometer Co., for one 54" long speedometer flexible drive requested by telephone this afternoon. Order… | ||
| img304 | Letter from the A.T. Speedometer Co., Ltd. regarding two methods for varying the calibration of new instruments. | ||
| View original record | The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img305 | Standardisation of an A.T. Speedometer with larger figures on mileage disc and shrouded magnet. | ||
| View original record | RR 755 (SH) (57394. 30-1-34) BM 3/787/1. COMPLETED 8.5.35. 40/50 STANDARDISATION of PARTS. Date 16-4-35 1.3.35. X No. 6051. Description of Parts. A.T. SPEEDOMETER WITH LARGER FIGURES ON MILEAGE DISC… | ||
| img306 | Cost estimate for introducing extra jigs and tools for the 'U' series chassis, including a breakdown of costs and an approval log. | ||
| View original record | [Reversed Text at Top] STANDARDISATION of PARTS [Top Left] X 6031 [Main Body] Est. cost of extra jigs, tools and equipment (Sft/Ws.19.3.35) £112.0.0. (& X.No.6033 40/50) Could be brought on to… | ||
| img307 | Standardisation of an A.T. Speedometer with larger figures on mileage discs and shrouded magnets. | ||
| View original record | RR 755A (SH) (57312. 26-12-33) BM 3/640/2 COMPLETED 8.5.35 20/25 STANDARDISATION OF PARTS. Date: 1.5.35 X No. 6051. Drawing No. Part List Description of Parts. A.T. SPEEDOMETER WITH LARGER FIGURES ON… | ||
| img308 | Cost estimation for extra jigs, tools and equipment for the 'JW' series chassis, including a cost comparison between old and new parts. | ||
| View original record | Est. cost of extra jigs, tools and equipment (Sft"Ws.19.3.35)£119.0.0. * Could be brought on to production at 1st chassis in "J" series, without scrap. (Sft/GH.19.3.35). * See Note on 40/50 HP.… | ||
| img309 | Standardisation of an A.T. speedometer with larger figures, designed to improve legibility and reduce weight. | ||
| View original record | RR 7858 (SH) (60654. 19-9-34) BM S/1832/5 COMPLETED 8.5.35. BENTLEY STANDARDISATION of PARTS. Date 1.5.35. (Handwritten above: 16-6-35) X No. 6051. Drawing No. Part List Description of Parts. A.T.… | ||
| img310 | Cost analysis for the standardisation of a spur gear part for the Bentley 'E' series 10Let chassis. | ||
| View original record | COMPLETED 8.6.35 BENTLEY STANDARDISATION of PARTS Date: X Drawing No. Part No. 1300 Description of Parts: SPUR GEAR WITH LARGER FLANGE Origin: TO IMPROVE RIGIDITY OF GEARBOX Report of Experimental… | ||
| img311 | Proposal from Smiths to use a single 100 M.P.H. speedometer dial for the 20/25 model. | ||
| View original record | Sg. From Hs/Wst. c. to Wox. c. to E. c. to By. c. to Cx. 46081 Hs/Wst.7/MA.15.5.35. SPEEDOMETER DIALS FOR 20/25. Whilst at Smiths yesterday it was suggested that if we could agree to the 20/25… | ||
| img312 | Letter of complaint to A.T. Speedometer Co. Ltd. regarding noisy speedometer flexible drives. | ||
| View original record | 26057 HS/WSt.4/MA. 17th May, 1935. Messrs. A.T. Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr. H.R. Buckland. Dear Sir, On the occasion of my recent… | ||
| img313 | Letter from a supplier investigating complaints about noisy speedometer flexible drives. | ||
| View original record | 86051 The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS. REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A.… | ||
| img314 | Letter from A. T. Speedometer Co. Ltd. regarding the lubricant for flexible drives. | ||
| View original record | A. T. SPEEDOMETER CO., LTD. CONTINUATION. -2- Messrs. Rolls-Royce Ltd. 21st May, 1935. We submit that the great risk of applying any kind of positive lubricant would be that the flexible drive would… | ||
| img315 | Cause of noisy speedometer flexes, suggesting that prolonged storage hardens the grease. | ||
| View original record | 46051. By. From Ha/Wst. c. to Mx. c. to JLE. c. to G/MT. Ha/Wst.5/MA.22.5.35. NOISY SPEEDOMETER FLEXES. We have been discussing the question of the above with the A.T.Co., with a view to arriving at… | ||
| img316 | Extract from a letter regarding lubricant solidification in flexible speedometer cables due to long storage. | ||
| View original record | EXTRACT FROM LETTER RECEIVED FROM MESSRS.A.T.SPEEDOMETER Co.LTD., HRB/B. 21st May, 1935. We have noted here that on a considerable proportion of these flexibles, it is obvious that the flexes have… | ||
| img317 | Rejecting a suggestion to change the speedometer dials for the 20/25 model due to legibility concerns. | ||
| View original record | S/W. Hs/Wst. c. to Sg. c. " Wor. c. " E. c. " BY. WST r6081 Cx16/KW27.5.35. Speedometer Dials for 20/25. In reply to your Hs/Wst.7/MA15.5.35, we are not in agreement with your suggestion because it… | ||
| img318 | Letter to A.T. Speedometer Co. Ltd. confirming the decision on speedometer dials for the 20/25 and 40/50 models. | ||
| View original record | 86051 Hs/Wst.2/MA. 28th May, 1935. Messrs. A.T. Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr. Buckland. Dear Sir, With reference to our discussion… | ||
| img319 | Letter from The A.T. Speedometer Co., Ltd. confirming speedometer dial specifications for the 20/25 and 40/50 models. | ||
| View original record | The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img320 | Requesting an additional Hasler rev counter for the Experimental Electrical Laboratory. | ||
| View original record | 86065. EJJ. From Hs/Wst. Ha/Wst.3/MA.24.6.35. REV COUNTERS. We are in urgent need of an additional Hasler rev counter in the Experimental Electrical Laboratory in view of the number of tests rigs we… | ||
| img321 | Internal order request for a Hasler Revolution Speeds Indicator for the Electrical Experimental Department. | ||
| View original record | from EJJ/JV. c to Hs/Wst. ---------------- Order No. 816. ---------------- WST x6068. EJJ/JV2/JC1. 7. 35. -------------------- Re - REVOLUTION COUNTERS FOR ELECTRICAL EXPERIMENTAL DEPARTMENT.… | ||
| img322 | Notice about new type speedometers for Bentley and 20/25 chassis, advising against self-repair. | ||
| View original record | Mx. From Hs/Wst. Y6051 Hs/Wst.4/MA.12.7.35. BENTLEY AND 20/25 CHASSIS NEW TYPE SPEEDOMETERS. We would recommend that no attempt be made to open up these speedometers or alter the calibration. These… | ||
| img323 | Potential purchase of a Zeiss Ikon Motor Indicator and comparing it with similar British-made instruments. | ||
| View original record | 6068. To - E. c. to Wor. c. to Hs. c. to Roy. c. to E/Bn. c. to E/PSH. Hs/Wd.6/GB.27.8.35. re ZEISS IKON MOTOR INDICATOR. During the past 5 years there has been intensive development into the type of… | ||
| img324 | Requesting the return of a faulty Electrical Laboratory Rev Counter due to a sticking needle. | ||
| View original record | 76065 To EJJ. Hs/Wst.12/KW.30.8.35. Electrical Laboratory Rev Counter. Will you please arrange to return to Messrs. Hasler the new rev. counter No. 30136 which you recently obtained for us, and which… | ||
| img325 | Repairs to Hasler Counter No. 30136, quoting a report on its condition and instructing staff not to interfere with instruments awaiting repair. | ||
| View original record | Hs/Wst. from EJJ/JV. WST 8606s EJJ/JV7/JC13. 9. 35 Re - REPAIRS TO HASLER COUNTER. We have dispatched Hasler Counter No. 30136 for overhaul and repair, and we give you below an extract from a letter… | ||
| img326 | Urgent request to A.T. Speedometer Co. Ltd. for an experimental speedometer for a Bentley chassis. | ||
| View original record | 86051. Hs/Wst.3/MA. 21st September, 1935. The A.T.Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr.H.R.Buckland. Dear Sir, We urgently require for an… | ||
| img327 | Letter confirming the order and dispatch of one instrument with 759 revs for a Bentley chassis. | ||
| View original record | The A.T. SPEEDOMETER CO. Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS. REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS: W. Henderson-Cleland. A. Gordon… | ||
| img328 | Request to send an order to the A.T. Speedometer Co. for a Bentley Speedometer. | ||
| View original record | Roy. From Hs/Wst. 86051. Hs/Wst.6/MA.2.10.35. Will you please send an order to the A.T. Speedometer Co., for one Bentley Speedometer calibrated 759 revs per mile which they have sent to us at our… | ||
| img329 | Request to rewind the solenoid coil for a single cylinder test bed's electrically operated rev-counter. | ||
| View original record | Rodes. RHC. From Hs/Wst. Hs/Wst.7/MA.4.10.35. SINGLE CYLINDER TEST BED ELECTRICALLY OPERATED REV-COUNTER. Will you please arrange to have the coil winding of the solenoid on the above rewound with 22… | ||
| img330 | Letter to Mr. E.A. Watson of Joseph Lucas Ltd. arranging a meeting in Birmingham. | ||
| View original record | 66066 Hs/Wst.8/MA. 23rd October, 1935. Mr. E.A. Watson, Messrs. Joseph Lucas, Ltd., Great King Street, Birmingham, 19. Dear Mr. Watson, I am so sorry I did not have the opportunity of seeing you again… | ||
| img331 | Request to locally procure 24 Detonindex neon tubes for ignition pencil indicators. | ||
| View original record | 86065 Roy. From Hs/Wst. Hs/Wst.7/MA.24.10.35. DETONINDEX NEON TUBES. Please obtain for us locally 24 of the small neon tubes as used in ignition pencil indicators. Order No.54001. Hs/Wst. | ||
| img332 | Letter to S. Smith & Sons Ltd. inquiring about the development of electrical rev counters for their chassis. | ||
| View original record | 86068. Hs/Wst.1/MA. 12th November, 1935. Messrs.S.Smith & Sons, Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr.Nichols. Dear Sir, You remember some considerable time ago we discussed… | ||
| img333 | Letter from S. Smith & Sons regarding experiments on a new electrical Rev. Indicator and sample availability. | ||
| View original record | WST 86065 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC,… | ||
| img334 | Letter to S. Smith & Sons, Ltd. requesting a sample electrical rev counter for laboratory tests. | ||
| View original record | 86065. Hs/Wst.3/MA. 14th November, 1935. Messrs.S.Smith & Sons, Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr.Nichols. Dear Sir, Replying to your letter of the 13th instant we should… | ||
| img335 | Letter from S. Smith & Sons (Motor Accessories) Ltd regarding a sample Electrical Rev Indicator for testing purposes. | ||
| View original record | 105 86065. CONTRACTORS, TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC,… | ||
| img336 | Letter from S. Smith & Sons regarding Electric Revolution Indicators and associated generators. | ||
| View original record | 86065. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS:… | ||
| img337 | Letter to S. Smith & Sons regarding generator speed and instrument dial diameter for a sample instrument. | ||
| View original record | 86065 Hs/Wst.12/MA. 18th November, 1935. Messrs. S. Smith & Sons, Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr.Russell. Dear Sir, Replying to your letter of the 15th instant the… | ||
| img338 | Letter from S. Smith & Sons concerning an Electrical Revolution Indicator and generator speed specifications. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S. SMITH & SONS (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 Handwritten: r60651 Header Left: ENGINEERING AND ALLIED EMPLOYERS' NATIONAL… | ||
| img339 | Urgent calibration of a 100 m.p.h A.T. speedometer for an experimental chassis. | ||
| View original record | Roy. From Hs/Wst. c. to G/MT. c. to D/BP. 54051 Hs/Wst.1/MA.22.11.35. A.T. SPEEDOMETER FOR EXPERIMENTAL CHASSIS 21.G.IV. We are sending into the stores one 100 m.p.h A.T. speedometer with concave… | ||
| img340 | Letter from a speedometer company regarding a delay in re-calibrating an instrument due to special requirements. | ||
| View original record | The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS. REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img341 | Requesting particulars on a new Jaeger chrono-electric aero engine revolution indicator for aircraft. | ||
| View original record | 16065 MNG. (Paris). Hs/Wst.3/MA.4.12.35. JAEGER REV COUNTERS FOR AIRCRAFT. Dorey recommended me to write to you for particulars of a new Chrono-electric aero engine revolution indicator which the… | ||
| img342 | The failure and repair of a speedometer cable for an experimental Phantom III chassis. | ||
| View original record | Roy. From Hs/Wst. c. to G/MT. c. to D/BP. x6051. Hs/Wst.4/MA.5.12.35. A.T. SPEEDOMETER CABLES. We have had a failure of a speedometer cable on experimental Phantom III chassis 35-EX. and we are… | ||
| img343 | Despatch note sending a speedometer cable to A.T. Speedometer Co. Limited for examination and report. | ||
| View original record | G/Mt. c. to D/BP. c. to Hs/Wst. ---------- WST r6051 ROY/MS.1/FS. ---------- 7th Dec. 1935. ---------- Please despatch carriage paid to:- Messrs. A.T.Speedometer Co.Limited., Chronos Works, North… | ||
| img344 | The purchase of Jaeger electric rev counters for aircraft. | ||
| View original record | Y6065. To Hs./Wst. Derby. C. to Db. Levallois MNG5/ET.9.12.35 G.C. Re: JAEGER REV COUNTERS FOR AIRCRAFT With reference to your Hs/Wst3/MA.4.12.35, we remember having had some correspondence with Dor.… | ||
| img345 | The procurement of a Jaeger rev counter for aircraft. | ||
| View original record | r6065 MNG. From Ha/Wst. (Paris) c. to Db. Hs/Wst.2/MA.12.12.35. Re. JAEGER REV COUNTER FOR AIRCRAFT. Replying to your MNG.5/ET.9.12.35., Dorey has not been in correspondence with Jaergers at all, nor… | ||
| img346 | Letter regarding the procurement of a Jaeger rev counter for aircraft. | ||
| View original record | Hs/Wst. Derby. Levallois MNG5/ET.30.12.35 G.C. Re: JAEGER REV COUNTER FOR AIRCRAFT With reference to your Hs/Wst.2/MA.12.12.35, we have been endeavouring to obtain the necessary information from… | ||
| img347 | Letter to a speedometer company regarding the failure of a recently recalibrated instrument and the lubrication of its cables. | ||
| View original record | 86051 Hs/Wat.5/MA. 18th December, 1935. Messrs.A.T.Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr.H.R.Buckland. Dear Sir, You will remember a few days… | ||
| img348 | Letter discussing a method to reduce noise from drives by lagging cable casings with rubber. | ||
| View original record | -2- These drives are still very noisy and we think that a determined effort should be made to adopt some means of quietening same. It has occurred to us that if the outside of the cable casing was… | ||
| img349 | Letter from the A.T. Speedometer Co., Ltd. regarding a fault with a hand-made speedometer guard. | ||
| View original record | 76051. The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS. REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A.… | ||
| img350 | Letter from the speedometer supplier regarding cable lubrication and noise reduction. | ||
| View original record | -2- Messrs. Rolls-Royce Ltd. 20th December, 1935. On the subject of the lubrication of cables with tallow to effect silence, we would like to state that we have no records here of noisy cables being… | ||
| img351 | Letter to A.T. Speedometer Co. Ltd. regarding speedometer cables and requesting a sample Bentley speedometer for testing. | ||
| View original record | 86051. Hs/Wst.7/MA. 23rd December, 1935. Messrs. A.T. Speedometer Co. Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr. H.R. Buckland. Dear Sir, Many thanks for your… | ||
| img352 | Letter from The A.T. Speedometer Co. regarding a special canvas-rubber covered speedometer cable. | ||
| View original record | (605). The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS, REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A.… | ||
| img353 | Letter from S. Smith & Sons regarding the progress of an Electric type Speedometer with recorder. | ||
| View original record | 105 86065. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE,… | ||
| img354 | Internal memorandum regarding the failed testing of a Smith electrical rev-counter and its subsequent return. | ||
| View original record | 86065. Roy. From Hs/Wst. c. to G/CAM/CA. Hs/Wst.11/MA.10.1.36. SMITH ELECTRICAL REV-COUNTER. On the 22.11.35 Messrs.Smiths submitted to us for test an electrical rev counter. We have now tested this… | ||
| img355 | Letter from S. Smith & Sons regarding the damping of an A.T. Speedometer needle. | ||
| View original record | CAP 86051. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY [Left Logo: THE ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION] TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE,… | ||
| img356 | Letter from S. Smith & Sons arranging a visit to discuss electric speedometers. | ||
| View original record | S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON, N.W.2 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON.… | ||
| img357 | Letter from S. Smith & Sons rescheduling a visit to discuss electric speedometers. | ||
| View original record | 105 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS. LONDON,… | ||
| img358 | Letter to Messrs. S. Smith & Sons, Ltd. regarding the postponement of a visit by Mr. V. Russell. | ||
| View original record | r6065. Hs/Wst.4/MA. 28th January, 1936. Messrs.S.Smith & Sons, Ltd., Cricklewood Works, London, N.W.2. For the attention of Mr.V.Russell. Dear Sir, In reply to your letter of the 27th instant we… | ||
| img359 | Letter from S. Smith & Sons arranging a visit to discuss Electric Speedometers. | ||
| View original record | 105 6065. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO HIS MAJESTY THE KING ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION TELEPHONE: GLADSTONE 3333 (20 LINES)… | ||
| img360 | Order be placed with A.T. Speedometer Co. Ltd. for a speedometer and specially insulated cables. | ||
| View original record | To Roy. 86051 Hs/Wst.5/JH.17.2.36. Will you please send our order to Messrs. A.T. Speedometer Co. Ltd., for one speedometer and one revolution indicator cables supplied to us specially insulated… | ||
| img361 | Testing an A.T. speedometer with increased damping and concluding it offers no significant improvement. | ||
| View original record | 86051 To Roy. c. to G/Mt. Hs/Wst.4/JH. 21.2.36. A.T. Speedometer with Increased Damping. Will you please arrange for the return of this instrument as we have now finished with it. It was submitted to… | ||
| img362 | Proposing a new, adjusted rev-counter for car 3-B-IV due to incorrect readings after an alteration to the dynamo drive. | ||
| View original record | To RHC. r6065 Hs/Wst. S/JH. 29.2.36. Rev-Counter on Car 3-B-IV. The drive between engine and dynamo on the above car has been altered, resulting in the dynamo now running at 1 1/4 times engine speed,… | ||
| img363 | Internal request to send a covering order for a speedometer to A.T. Speedometer Co. Ltd. | ||
| View original record | 86051. To Roy/Ms. Hs/Wst.15/JH. 7.4.36. With reference to the attached letter from the A.T. Speedometer Co. Ltd., Will you send a covering order to them for this speedometer to our order No. 54105.… | ||
| img364 | Confirmation of an alternative tachometer drive for chassis S-B-IV with the wider frame and its running speed. | ||
| View original record | To RHC. c.c. to Hs/Rm. c.c. to Hs/AFM. r6065 Hs/Wst. 9/JH. 24.4.36. We confirm that you will arrange an alternative drive for the tachometer on chassis S-B-IV with the wider frame. The tachometer… | ||
| img365 | Investigation into the Phantom III speedometer drive running dry and the proposed modifications to resolve the issue. | ||
| View original record | 86065. To R. c. to Wor. c. to Hy. c. to Ds. c. to Edy. c. to MX. c. to RHC. Phantom III Speedometer Drive. We have been investigating the trouble experienced on production Ph.III chassis of the… | ||
| img366 | Letter to the A.T. Speedmoeter Co. arranging a meeting to discuss noisy drives and comparing them to American units. | ||
| View original record | 86051. HS/Wst.14/JH. 15th June, 1936. The A.T. Speedmoeter Co., Ltd., Chronos Works, North Circular Road., London. N.W.2. For the attention of Mr. H.R. Buckland. Dear Sirs, Could you arrange for Mr.… | ||
| img367 | Letter from A.T. Speedometer Co. Ltd. regarding a visit by Mr. Arrowsmith. | ||
| View original record | The A.T. SPEEDOMETER CO. Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS. REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS AND ENGINES, MILEAGE RECORDERS, ETC. DIRECTORS. W. Henderson-Cleland. A. Gordon… | ||
| img368 | Letter to A.T. Speedometer Co. Ltd. agreeing to the creation of a sample speedometer drive for testing, based on a part from an American Packard car. | ||
| View original record | 86051 Hs/Wst.7/JH. 3rd July, 1936. Messrs. A.T. Speedometer Co.Ltd., Chronos Works, North Circular Road, London, N.W.2. For the attention of Mr. H.R. Buckland. Dear Sirs, We confirm the visit of your… | ||
| img369 | Letter from Foster Instrument Co Ltd advising they no longer make electrical revolution indicators and suggesting other suppliers. | ||
| View original record | FOSTER INSTRUMENT Cº LTD LETCHWORTH, HERTS., ENGLAND. CHARLES EDWIN FOSTER, F. INST. P., MANAGING DIRECTOR. Handwritten top center: r6068. Left Column: PYROMETERS THERMOMETERS AUTOMATIC ALARMS AND… | ||
| img370 | Letter to Salford Electrical Instruments, Ltd. requesting particulars of electrical revolution indicators. | ||
| View original record | r6065. Hs/Tst.3/MA. 13th August, 1936. Messrs.Salford Electrical Instruments, Ltd., Salford. Dear Sirs, Will you please let us have full particulars of electrical revolution indicators which we… | ||
| img371 | Letter acknowledging an enquiry for Electrical Revolution Indicators and forwarding it to the Birmingham branch. | ||
| View original record | SALFORD ELECTRICAL INSTRUMENTS LTD TRADE MARK S.E.I.LD 86065. ENGINEERING EMPLOYERS' FEDERATION NATIONAL SCHEME FOR DISABLED MEN REGISTERED OFFICE: MAGNET HOUSE, KINGSWAY, LONDON, W.C.2. TELEGRAMS:… | ||
| img372 | Request to order and supply a replacement synchronous speed motor for the rev counter rig. | ||
| View original record | To EJJ. 6065 Hs/Wst.1/JH.16.10.36. Re Rev Counter Rig. In order to replace the small synchronous speed motor which we used for our sparking plug cleaning rig will you please arrange to order and… | ||
| img373 | Request to place an order with Messrs. A.T. Speedometer Co. Ltd. for a Bentley rev-counter. | ||
| View original record | To Roy. c. to C/JWH. Jlosn. Hs/Wst.17/JH.16.10.36. Will you please send an order to Messrs. A.T. Speedometer Co.Ltd. for the supply of one A.T. Bentley rev-counter to run in the reverse rotation, as… | ||
| img374 | Request to order an A.T. Speedometer for Experimental Car 5-B-IV, specifying the back-axle ratio and calculated revolutions per mile. | ||
| View original record | To Roy. c. to G/JWH. 6051. Hs/Wst.21/JH.19.10.36. Speedometer for Experimental Car 5-B-IV. Will you please order, for use on the above car, one A.T. Speedometer suitable for a back-axle ratio of… | ||
| img375 | Faulty speedometer from a Phantom III (36-EX) being returned for overhaul and repair. | ||
| View original record | To Roy. c. to G/Mt. 6065 Rm/Wst.35/JH.30.10.36. Phantom III Speedometer off 36-EX. The above speedometer No.P.483 has been removed from the car, owing to the pointer having a tendency to stick at… | ||
| img376 | Instruction to despatch a speedometer for overhaul as per order. | ||
| View original record | 86051. G/Mt. c. to D/EP. c. to Rm/Wst. ROY/MS.2/TS. 3rd Nov. 1936. 36-HX. Ph.III. Please despatch carriage paid to:- Messrs. A.T.Speedometer Co.Ltd., Chronos Works, North Circular Road, London.N.W.2.… | ||
| img377 | Letter from Dobbie McInnes & Clyde Ltd to Bentleys Motors promoting the 'Farnboro' Electric Indicator for engine testing. | ||
| View original record | FILE 86065. BRITISH & FOREIGN GOVERNMENT CONTRACTORS DOBBIE MCINNES & CLYDE LTD Manufacturers of Engineering and Nautical Instruments. 57 Bothwell Street, GLASGOW, C.2 Telegrams - "COMPASS" GLASGOW.… | ||
| img378 | Promotional leaflet for the 'Dobie-McInnes' 'Farnboro' Electric Indicator, detailing its use with time-base diagrams for high-speed engines. | ||
| View original record | CIRC. 16 A. "DOBBIE-McINNES" 'FARN'BORO' ELECTRIC INDICATOR FOR HIGH SPEED AUTO AND AERO ENGINES EXTREMELY LARGE TIME BASE DIAGRAMS The invaluable services of this indicator, so frequently commented… | ||
| img379 | Analysis of indicator diagrams showing the effects of fuel injection timing and engine speed on combustion pressures. | ||
| View original record | clear from the diagrams that the increase of pressure is very rapid, and that quite soon a vigorous flow must take place from the auxiliary chambers into the main chamber. also the forms of the… | ||
| img380 | Investigation report into a Magneto unit that was cutting out during endurance tests. | ||
| View original record | INVESTIGATION REPORT. Customer:- Rolls Royce Ltd. Derby. Unit. Magneto Type & Serial No. S.P. 12-3. L.H. Serial No. 141323. Reason for report. Cutting out on endurance tests at normal engine speed.… | ||
| img381 | Letter to the Air Ministry requesting a recommendation for a reliable method of checking revolution indicators. | ||
| View original record | 86068. Lx/Wst.30/JH. 4th Nobember, 1936. The Secretary, Air Ministry, Savoy Hill House, The Strand, London. W.C.1. For the attention of Mr. Emtage R.D.E.3. Dear Sirs, We wish to obtain a really… | ||
| img382 | Failed Hasler rev-counter on a test rig, requesting it be returned to the makers for repair. | ||
| View original record | To EJJ. 86065 Lr/Wst.2/JH.6.11.36. Re Hasler Rev-Counter No.30136. This rev-counter has recently failed on our test rigs and caused very erratic reduction at high speeds. Will you please arrange for… | ||
| img383 | Specification document for the speedometer drive on the Wraith II gearbox. | ||
| View original record | 6065 c/ Dr.Ex. Ey/ED. RM/WSt. E/HDY.1/HP.23.11.36. Wraith II Gearbox. Speedometer Drive. The speedometer for the first Wraith II car or two, with 25/30 back axle centre casing and gears should be made… | ||
| img384 | Faulty speedometer from Phantom car 32-EX reading 3 MPH fast. | ||
| View original record | 6065, To Roy. from Rm/Wst. c. to G/Mt. Rm/Wst.9/AP.3.12.36. SPEEDOMETER OFF 32-EX. We have had the speedometer off Phantom car 32-EX, returned to us with the complaint that it reads 3 M.P.H. fast at… | ||