Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 165\3\        Box Selection

IdentifierEntry
img001 Modifying a pocket voltmeter to compare condenser capacities for battery ignition systems.
View original record To Mr. Coverley. from EFC. x.975 x6033 EFC2/T2.7.18. 2nd. July 1918. X.975 RE POCKET INSTRUMENT FOR COMPARISON CONDENSER CAPACITIES. X.2512 We handed to your Mr. Gamble yesterday afternoon a small 12…

img002 Letter from Rowland & Co. offering their services as manufacturers of scientific and electrical apparatus for private contract work.
View original record ROWLAND & Co (H.C.ROSE) MANUFACTURERS & MERCHANTS. TELEPHONE:- CITY 4843. TELEGRAMS:- "ROSCOMERS,CANNON,LONDON." A. B. C. & A1 CODES. S.D. 14, 123 & 127. Cannon Street, London, E.C. 4. [Handwritten…

img003 Enquiries be made for an electrical instrument to measure condenser capacities.
View original record To O.O. from EFC. X.975 ~6033 EFC2/A14.6.19. X 2434 X 1782 X.975. - RE ELECTRICAL INSTRUMENT FOR THE MEASUREMENT OF CONDENSER CAPACITIES. X. 2512 Will you kindly send out enquiries to various…

img004 List of required instruments for the production testing of electrical apparatus, specifically condensers and ignition coils.
View original record X.975 6033. To Hy. from EPC. c. to En. c. to Wor. c. to Wa. EFC2/T19.8.19. X.1627. PRODUCTION TESTING OF ELECTRICAL APPARATUS. X.975 X.1782. INSTRUMENTS REQUIRED. Kindly note the following are the…

img005 Specifications for testing instruments for the main switch, starter motor, and dynamo.
View original record Contd. -2- EFC2/T19.8.19. 3. MAIN SWITCH & ACTUATING BOX. For this purpose another instrument similar to the above described for coils, will be required. Also an Isenthal variable resistance of 2 1/2…

img006 Noting the requirement of a Hasler Speed Indicator for starter motor tests.
View original record To Ey. from EFC. c. to En. c. to Wor. c. to Wd. X975 6033 EFC3/AT21.8.19. X.1627.-PRODUCTION TESTING OF ELECTRICAL APPARATUS. X975 Further to our EFC2/T19.8.19, kindly note that for tests of the…

img007 List of instruments required for production adjustment or testing of electrical systems.
View original record X.975 60033 10.1.29. X.1628 Production Test. INSTRUMENTS REQUIRED FOR PRODUCTION ADJUSTMENT OR TEST. X.975 X 178 2 Instruments. Lighting. { Dynamo. Cut-out. Battery. } 15 volts and 15 amperes.…

img008 Appropriate equipment for production tests of electrical apparatus.
View original record To By. from Ck. Handwritten: X975 V6033 Ck1/T12.1.20. X.1627 - PRODUCTION TESTS OF ELECTRICAL APPARATUS Handwritten: X975 With reference to your enquiry regarding the advisability of obtaining a…

img009 Improved electrical testing methods for short circuits and insulation using transformers and Meggers.
View original record Ck1/T12.1.20. -2- Contd. become short circuited. A better method of showing up short circuited turns, and one for which we hope, in the cases of the actuator box and main switch to recommend…

img010 The return of an instrument to the Experimental Department.
View original record CKi/T12.1.20. -3- Contd. production Dept. (see p.7) , we shall be glad to receive the present instrument back from them, this being the property of the Experimental Dept. CK.

img011 Listing the testing instruments required for production adjustment or test of starters.
View original record Mr. Clark from E.J.B. X.975. [crossed out] [Handwritten]: 26033 EJB2/LMG12.1.20. X.1627 - X.975. [crossed out] In reply to your memo X.1627/Production test - Instruments required for Production…

img012 The required instruments for production testing of ignition coils and correcting previous instructions.
View original record To By. from Ck. c. Hy c. Mr. Brock. X.975. 86033 CK2/T22.1.20. X.1627 - INSTRUMENTS FOR PRODUCTION TESTING X.975. Test No.2 in our recommended instructions for production testing of ignition coils…

img013 Continuation of a document justifying the need for a third testing instrument for the production testing department.
View original record -2- Ck2/T22.1.20. Contd. the ranges 0 to 1.5 and 0 to 15 volts and amperes. There are five purposes to which these instruments are put (quite apart from the motor test) 1. Main switch. 2. Actuator…

img014 Requesting the order of a portable D.C. volt ammeter for self-starter testing.
View original record x975 c6033 To C.C. from Mr. Alvey. c. to Mr. Birks. c. to Mr. Brock. c. to EFC. EJJ3/EW27.1.20. X.1627 - RE SELF STARTER TEST TACKLE - X.975 X.1782. Please order from the Weston Electrical Instrument…

img015 Internal request to order three electrical instruments from S. Smith & Sons for the Experimental Department.
View original record (T) (R.F. 674. 22-5-19) G. 2376. Handwritten: X875 6033 To C.O. from Ck. c. to Stores. c. to ___________ Ck6/T6.2.20. X.975 - INSTRUMENTS FOR EXPERIMENTAL DEPT. Handwritten: X.206 Will you kindly…

img016 The receipt of various parts and components from multiple suppliers for experiments.
View original record x275 - 6033 Mr. Clark. O.O. Wd/Dnl/HP19.2.20. ---------------- Please note that we have received from the Chloride Elect. Storage Co. 12 Exide M.A.3 Cells, for experiment 2065 stores sheet 177614 of…

img017 To Mr. Ellis requesting the re-adjustment of a large ammeter and shunt obtained from the Metallite Company.
View original record To Wor.for Mr.Ellis. From Ck. X975 6033 Ck2/T23.2.20. X.975 - AMMETER We are sending you herewith one of the large ammeters and shunts obtained from the Metallite Company; this is now out of…

img018 Supply and design of a Lucas battery indicator.
View original record R. R. 235 a (100 T) S F 846 6-8-19 G? 2400 x975 6033 To R. from Ck. c. to OJ. c. to E. c. to Bn. c. to EP. c. to By. Ck6/T26.2.20. X.3792 - LUCAS BATTERY INDICATOR. X975 Further to our Ck3/T9.2.20, we…

img019 Instruction sheet detailing the measurement of a box instrument, model 163, number 98.
View original record RR 300 (120B) (SF 349 24-1-19) MP 200552 91329 6033 X978 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E 7 C. Date: 20/8/20 Order No: X 1782 Customer's No.: FC.5 Re: X 1782 Instruments We have measured from…

img020 Requesting that the instrument number be recorded alongside observations during electrical experimental work.
View original record To L.F. from EFC. " C.A.P. " F.J.A. X-975 X6033 EFC4/T29.10.20. X-975 RE USE OF INSTRUMENTS IN ELECTRICAL EXPERIMENTAL WORK. Will you kindly note that from now onwards, whenever an instrument is used,…

img021 Re-use of instruments, detailing associated calibration indexes, tables, and usage instructions.
View original record X975 6033 To L.F. From EPC. C.A.P. F.J.A. EFC3/T1.12.20. X.2064. RE USE OF INSTRUMENTS. X975 You are receiving :- (a) Index to Calibrations of Instruments. (b) Calibrations for Instruments 22407,…

img022 Guideline specifying three degrees of accuracy for instrument measurements and calibration.
View original record Contd. -2- EFC3/T1.12.20. It is advisable to give the number of the instrument and the range used for any job, in case changes occur in the instrument. When anything happens to an instrument which…

img023 Guide on understanding and recording zero errors and zero corrections for instrument readings.
View original record Contd. -3- EFC3/T1.12.20. It will be assumed that figures given are the true corrected values unless otherwise stated. If, for any reason, corrections cannot be made before reporting the results, the…

img024 Table of specifications for electrical experimental department instruments.
View original record X-275. 6033 X.975 - ELECTRICAL EXPERIMENTAL DEPARTMENT INSTRUMENTS. X.1782. Description. Number and Connections. Volt ranges. Ampere ranges. Resistances. (Ω). Remarks. Weston Standard…

img025 Specifications and connection diagrams for a Weston Millivolt-Ammeter Model 1.
View original record -2- Description | Number and Connections | Volt ranges | Ampere ranges | Resistances (ω) | Remarks ---|---|---|---|---|--- Weston Milli-Volt-Ammeter Model 1. | 22407 [Hand-drawn circuit diagrams for…

img026 Specification table for a Weston Milli-Volt-Ammeter Model 1, detailing its ranges and resistances.
View original record -3- Description. Weston Milli-Volt-Ammeter Model 1. Number and connections. 22596 [Handwritten diagram of resistor network with terminals labelled 600, 150, 1.5, .015, Ohms.] [Handwritten diagram of…

img027 Specification and connection diagram for a Weston Model 163 Instrument Box.
View original record Page: -4- Table Columns: Description, Number and connections, Volt ranges, Ampere ranges, Resistances (ω), Remarks. Row 1: Weston | 42 | .0181 (at 15°C.) | .0100 | .81 (at 15°C.) | Instrument only.…

img028 Electrical specifications and wiring diagram for a Weston Box Instrument Model 163.
View original record -5- | Description | Number and Connections | Volt ranges | Ampere ranges | Resistances (Ω) | Remarks | |---|---|---|---|---|---| | Weston Box Instrument Model 163. | 92 (and wiring diagram with…

img029 Specification table and connection diagram for a Weston Instrument, Model 163.
View original record -6- Description | Number and connection | Volt ranges | Ampere ranges | Resistance (w) | Remarks --- | --- | --- | --- | --- | --- Weston | 40 | .0168 (at 15°C.) | .00949 | 1.77 (At 15°C.) |…

img030 Specification table for a Weston Box Instrument Model 163 with its electrical characteristics and connection diagrams.
View original record -7- | Description | Number and connection | Volt ranges | Ampere ranges | Resistances (Ω) | Remarks | | :--- | :--- | :--- | :--- | :--- | :--- | | | 98. | .0168 (at 15°C.) | .0105 | 1.600 (at 15°C) |…

img031 From EFC to St. discussing revisions to the Electrical Instruction Book.
View original record W S. To St. from EFC. X975 36033 EFC10/T31.12.20. X.975 - ELECTRICAL INSTRUCTION BOOK. I have your St1/EP/30.12.20. With reference to your second paragraph, I have seen EP. and we are arranging to…

img032 Wording of electrical safety instructions, specifically regarding shock hazards from the chassis and covering live terminals.
View original record R.R. 205A (100 T) (S.P. 168. 11-8-20) G. 2800 Contd. -2- EFC10/T31.12.20. It is difficult to know whether to put in a note to this effect or not. Our desire was to say neither too much nor too little.…

img033 Instructions for testing the milli-volt and milli-ampere readings for a Weston Electrical R.P.M. Counter.
View original record RR 300 (1203) (SF 349 24-1-19) MP 200552 X975 66033 88291 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFC Order No: AA 46 Customer's No.: 1 Date: 28-Jan-1921. Re: X.1782. Milli-volts & Milli-amperes of…

img034 Request to obtain particulars and prices for a 'MEG' insulation tester.
View original record To ROY. from EFC. X.975. 6033 EFC6/T22.11.22. X.975 - RE "MEG" INSULATION TESTER Would you kindly obtain from the makers Messrs. Evershed & Vignoles Ltd., Acton Lane Works, Chiswick, W.4., particulars…

img036 Product leaflet for the MEG Insulation Tester by Evershed & Vignoles.
View original record VAJS 86033 THE MEG INSULATION TESTER Registered Design No. 690326 Patents Pending The new production of the makers of the MEGGER TESTING SETS EVERSHED & VIGNOLES LIMITED ACTON LANE WORKS, CHISWICK…

img037 Informational leaflet for the Evershed & Vignoles MEG Insulation Tester.
View original record 2 EVERSHED & VIGNOLES, LIMITED. ACTON LANE WORKS, CHISWICK. 3 The MEG Insulation Tester Registered "MEGGER" Trade Mark FIG. 1 FIG. 2 The MEG INSULATION TESTER (Regd. Design) with handles closed for…

img038 Product description for the new MEG Insulation Tester by Evershed & Vignoles Limited.
View original record 4 EVERSHED & VIGNOLES, LIMITED. A new set of revolutionary design Our new product, the MEG Insulation Tester combines these features. The name, a kind of diminutive of "Megger," has been given to it…

img039 The 'MEG' Insulation Tester and its canvas carrying case.
View original record 6 EVERSHED & VIGNOLES, LIMITED. having an ohmmeter reading 0 to 100 megohms. Each scale is separately calibrated and is clearly marked in black on a white background, as is shown in the plan view of…

img040 Price, weight, and dimension list for the MEG Insulation Tester and its accessories.
View original record 8 EVERSHED & VIGNOLES, LIMITED. Prices WEIGHTS AND DIMENSIONS OF THE MEG INSULATION TESTER and Accessories Cat. and Code No. | Description | Price 54003 | MEG Insulation Tester, 0-100 Megohms, 500…

img041 Business inquiry letter requesting particulars and prices for a new Insulation Tester known as the 'Meg'.
View original record 6033 Ref.-ROY/GEA10/FJ241122. 24th Novr.,1922. Messrs.Evershed & Vignoles Ltd., Acton Lane Works, Chiswick, W.4. Dear Sirs, Will you kindly send us at your early convenience particulars and prices of…

img042 Letter from Evershed & Vignoles Ltd. regarding a quote for a MEG Insulation Tester.
View original record EVERSHED & VIGNOLES LTD ELECTRICAL ENGINEERS TELEPHONE: CHISWICK 1370 TELEGRAMS: "DOROTHEA, CHISK, LONDON" CODES: A.B.C. FIFTH EDITION WESTERN UNION, UNIVERSAL EDITION ENGINEERING SECOND EDITION ACTON…

img043 Terms and conditions of tender from electrical engineers Evershed & Vignoles Ltd.
View original record EVERSHED & VIGNOLES LTD ELECTRICAL ENGINEERS TELEPHONE: CHISWICK 1370 - 1371. TELEGRAMS: "DOROTHEA, CHISK, LONDON" CODES A. B. C. FIFTH EDITION ENGINEERING SECOND EDITION MARCONI INTERNATIONAL WESTERN…

img044 Follow-up letter regarding a quotation for a 'MEG' tester.
View original record TELEGRAPHIC ADDRESS: "ARMATURE, BIRMINGHAM." A.B.C. CODE 5TH EDITION. S. THOMAS PEMBERTON & Co. TELEPHONE: CENTRAL 5453 SOLE SELLING AGENTS FOR THE MIDLAND COUNTIES. 8, CHURCH STREET, COLMORE ROW,…

img045 Letter to S. Thomas Pemberton & Co. stating the need for a 'Meg' Tester has temporarily disappeared.
View original record c. ROY/GEA. x975 sl6033. EFC1/T. 9th January, 1923. Messrs. S. Thomas Pemberton & Co., 8, Church Street, Colmore Row, Birmingham. Dear Sirs, Thank you for your letter ref. 1352/FC of the 5th instant…

img046 Letter to the Corporation Power Station in Derby requesting to hire a calibrated 15 HP electric motor for experimental purposes.
View original record XARS 6033 Hs/Rnl/LC. 15th. Feb. 1923. T.P. Wilmhurst, Esq., Manager, Corporation Power Station, Derby. Dear Sir, We are anxious to obtain for experimental purposes, a calibrated Electric Motor of…

img047 Letter from Evershed & Vignoles Ltd sending catalogues for switchboard instruments and insulation testers.
View original record X975 . 6033 EVERSHED & VIGNOLES LTD ELECTRICAL ENGINEERS TELEPHONE: CHISWICK 1370 - 1371. TELEGRAMS: "DOROTHEA, CHISK, LONDON" CODES A. B. C. FIFTH EDITION ENGINEERING SECOND EDITION MARCONI…

img048 From DA to HS regarding a planimeter that has been missing for 3-4 years.
View original record TO HS. FROM DA. Y975 / 86033 DA1/M19.7.23. With reference to your telegram re plani-meter, we have made several attempts to get this instrument down here, but it has disappeared entirely for 3 or 4…

img049 List of D.C. instruments and their principal uses for various tests.
View original record X.975. SL6033. X.975. D.C. INSTRUMENTS. Principal uses as follows:- 22407 - Extra volt ranges for all purposes. 22596 - Starter motor and accessories tests and miscellaneous purposes (amperes). 42 -…

img050 Calibration data for a Cambridge potentiometer instrument tested at 18 and 90 millivolt ranges.
View original record X975 86033 CAMBRIDGE MEASURING INSTRUMENT (POTENTIOMETER) (Mr. Hally). 18 millivolt range. True reading from 22407. | Reading on Galvan. scale. | Ratio. 2.80 | 2.86 | .980 - 9 5.37 | 5.48 | .980 - 9…

img051 Proposed change from an American-made Weston ammeter to an English-made Elliott ammeter.
View original record To Roy... - from Wor. c. to Hs. X975-6033 Wor11/M7/4/24. I have your note Roy10/MG4/4/24, proposing that in view of EFC's report we change from the Weston ammeter, an American production, to the…

img052 Calibration results and findings for a Cambridge Millivolt Potentiometer.
View original record x925 6033. To H.L. from E.F.C. EFC3/T28.4.24. X.975 - RE CAMBRIDGE MILLIVOLT POTENTIOMETER We have carefully tested and calibrated this instrument on both ranges and have seen no sign of anything…

img053 Cover page for an Elliott Brothers catalog of instruments for motor car users and manufacturers.
View original record X9785 6033. ELLIOTT ESTABLISHED 1800 A FEW OF OUR INSTRUMENTS THAT HAVE BEEN DESIGNED FOR THE USE OF MOTOR CAR USERS AND MANUFACTURERS. INSTRUMENTS ELLIOTT BROTHERS, (LONDON) LIMITED, 1, CENTRAL…

img054 Catalogue page detailing specifications and pricing for Type 11 and Type 14 speedometers.
View original record SPEEDOMETERS. TYPE 11. FLUSH OR BRACKET MOUNTING. 3in. DIAL. Total Mileage and Trip Cyclometer. Brass, Nickel, or Black Finish. STANDARD RANGES— 5 - 30 M.P.H. 5 - 60 " 10 - 80 " 20 - 130 " Price ...…

img055 Catalogue page for Hamill Flow Meters and Wimperis Accelerometers.
View original record HAMILL FLOW METERS. For indicating the rate at which the Petrol is being consumed by the Engine. INVALUABLE ON A CAR OR TEST-BENCH. Price ... £7 : 7 : 0 A separate Pamphlet giving full particulars of…

img056 Catalogue page showing motor clocks and a garage testing set with their descriptions and prices.
View original record MOTOR CLOCKS. RELIABLE TIMEKEEPERS. These Clocks have a strong well-made movement, and are specially constructed to withstand vibration. WIND AT BACK. Price ... £7 : 15 : 0 BEZEL WIND. Price ... £2 :…

img057 Catalogue page for hand-held and permanent attachment speed indicators (tachometers).
View original record SPEED INDICATORS. HAND USE. These Instruments have been on the market a number of years, and are adopted by the chief Government Departments. A FEW POINTS:— They are made in a variety of ranges, to…

img058 Catalogue cover for Elliott Instruments, listing various sections.
View original record 1900 ELLIOTT CATALOGUE SECTIONS. A. Direct Current Switchboard Measuring Instruments. B. Alternating Current Switchboard Measuring Instruments. C. Polyphase A.C. Measuring Instruments (Switchboard,…

img059 Test report on an Ediswan ammeter with a 150 ampere shunt.
View original record X9756 86033 To SFT/Mr. Brock. EFCL/T12.6.25. EDISWAN AMMETER WITH 150 AMPERE SHUNT. We have tested this instrument with the leads supplied, but it should be noted that a variation in the leads may…

img060 Important notice from Weston Electrical Instrument Co. Ltd. regarding the handling, loss, and re-shipment of their instruments.
View original record FORM L. 54/6/25. X975 86033 74 IMPORTANT NOTICE. Make a record of the Number of all Instruments of our make owned by you. If you lose an Instrument notify us of the date of loss, Number, Style and…

img061 Calibration note for an Ediswan Voltmeter Type MC.No.62953.
View original record x275 6033 To HY/EJJ. from EFC. EFC3/T25.6.27. EDISWAN VOLTMETER TYPE MC.No.62953. We have carefully calibrated this instrument. The scale proportionality is quite fair. The addition of 3% to all…

img062 Letter from A. Gallenkamp & Co. regarding a new version of their 'Alltest' multi-range instrument for laboratory use.
View original record ESTABLISHED 1880. Telephone: LONDON WALL 1404 & 1405. Telegrams: GALLENKAMP, FINSQUARE, LONDON. Managing Directors: H. G. JARROM, J. DAVIES. Directors: F. DIXON, E. A. PEARCE, H. J. HORNBY. TRADE…

img063 Letter from A. Gallenkamp & Co., Ltd. describing the features, specifications, and pricing of an 'Alltest' indicating instrument.
View original record A. GALLENKAMP & Co., Ltd. continued M.......................................... and a portion of the scale plate cut away to expose the movement, making it not only an indicating instrument which can…

img064 Letter to F. Senn Esq. requesting a price list for stop watches for accurate timing.
View original record X925 6033 Expl: Dept: Hs/Rnl4/LG. 17th. Oct. 1928. F. Senn Esq., 15 Boulevard St. Denis, Paris. Dear Sir, We understand that you make stop watches for accurate timing. We should be obliged if you…

img065 Photograph of a pocket watch with handwritten annotations.
View original record Booklet in Pamphlet box Hslhe Y975 s6035. n° 705 Bis 200+

img066 Letter from a Parisian watchmaker regarding specific stopwatch models and an enclosed price list.
View original record JOAILLERIE • BIJOUTERIE • HORLOGERIE F. SENN 15, BOULEVARD ST DENIS MÉTRO: STATION ST DENIS FABRIQUES DE MONTRES GENÈVE CHAUX-DE-FONDS BIJOUTERIE JOAILLERIE ORFÈVRERIE PIÈCES DE COMMANDES Registre du…

img067 Quote from a Parisian watchmaker for precision stopwatches and timers.
View original record 86033. JOAILLERIE · BIJOUTERIE · HORLOGERIE F. SENN 13, BOULEVARD ST DENIS MÉTRO : STATION ST DENIS BIJOUTERIE JOAILLERIE ORFÈVRERIE FABRIQUES DE MONTRES GENÈVE CHAUX-DE-FONDS PIÈCES Ξ DE Ξ COMMANDES…

img068 Advertisement for a novelty 'Golfer's Watch' with a protective case.
View original record FORE AGAIN! LATEST NOVELTY GOLFER'S WATCH!! Illustrations actual size Indestructible—can be carried in the trousers pocket along with keys and money. The great advantages over the ordinary wrist watch…

img069 Advertisement for a decimal stopwatch designed for factory use with the Taylor System.
View original record POUR L'USINE PLUS de pertes de temps au chronométrage Compteur Décimal avec ARRÊT FACULTATIF pour l'emploi du Système TAYLOR VERROU B permet : 1° d'arrêter la trotteuse à tout moment ; 2° de la faire…

img070 The classification and record-keeping of chassis instruments.
View original record To Hs/AJL. X975. 86033. EFC2/T21.12.28. CHASSIS INSTRUMENTS. In regard to the question of chassis electrical instruments, in which group we consider to be included the ammeter, hydrometer, speedometer…

img071 Outlining the disadvantages of the Avometer instrument compared to Weston box type instruments.
View original record Hy. from EFC. c. Sft/Mr. Brock. X975 X6033 EFC2/T13.2.29. RE AVOMETER. Herewith we assistant's report AD.24 on the Avometer instrument. It will be noted that there are two outstanding disadvantages in…

img072 The functionality and accuracy of an Avometer electrical instrument.
View original record EFC. AD.24. 12th February, 1929. AVOMETER ELECTRICAL INSTRUMENT. This instrument is of the moving coil type and is fitted with a turn switch providing four current ranges from .012a to 12.0a and five…

img073 Specification sheet for a Weston Standard Milli-Volt-Ammeter.
View original record Title: X.975 - ELECTRICAL EXPERIMENTAL DEPARTMENT INSTRUMENTS. X.1762. Handwritten Note: X6033 Table data: Column 'Description': Weston Standard Milli. Volt-Ammeter Column 'Number and Connections':…

img074 Requesting the purchase of a Ferranti Rectifier type 253.P Alternating Current Milliammeter.
View original record X975. s6033 To ROY from EFC. EFC3/MG12.3.30 X.975 - ALTERNATING CURRENT MILLIAMMETER Will you please order, for the use of the Electrical Experimental Laboratory:- One - Ferranti Rectifier type 253.P…

img075 Characteristic curve graph for a Ferranti A.C. Rectifier Milli-Ammeter at an ambient temperature of 16°C.
View original record VOLTS (A.C.) Milli-AMPERES APPROX. CHARACTERISTIC OF FERRANTI A.C. RECTIFIER Milli-AMMETER No. 30131 (Ambient Temperature 16°C) Immediate Final 100 Ohms X475. /LO 033 28.3 No. 3338

img076 Request to obtain a replacement pen for an Evershed and Vignoles recording voltmeter.
View original record X1330. Roy. from EFC. EFC5/AD9.7.30. X.1330. RECORDING VOLTMETER. Will you please obtain one pen for our Evershed and Vignoles recording voltmeter 0 - 25 volts No.62232. The present pen is now worn…

img077 Inquiry about adding a 30 ampere shunt to a Weston standard laboratory instrument or quoting for a separate one.
View original record ROY. from Hs/Wst. x2434. Hs/Wst.18/KT.31.3.33. WESTON LABORATORY INSTRUMENT. We have in the electrical laboratory a Weston standard instrument Model 1, No.32901 arranged as a self contained voltmeter…

img078 Requesting a quote for a suitable resistance to convert a milliampere instrument into an AC voltmeter.
View original record X1330 Roy/MS. From Hs/Wst. Hs/Wst.3/MA.3.7.33. VOLTMETER RESISTANCES. Further to our Hs/Wst.8/MA.28.6.33., we have noted Messrs.Ferrantis reply to your letter and it would appear a better proposition…

img079 Requesting the fitment of specific parts to chassis 22-EX for a standardisation test.
View original record RHC. From Hs/Wst. 86033 Hs/Wst.5/MA.6.12.33. CHASSIS 22-EX. Will you please arrange to equip this chassis as soon as possible with the following :- (1) Shunt dynamo to D.73919, D.73933, D.72244 DB238.…

img080 Telegram received by telephone regarding a letter and postponing a visit.
View original record r6033 WST ROLLS-ROYCE LTD. RD 5 FEB 1934 TELEGRAM RECEIVED BY TELEPHONE. Time Received: 10.35 Date: 5/1/34 To: Raynaw By: WSA from: Belper & Co REC'D Yours letter reference HJ/MB 1/3/ HH. just…

img081 Letter from the owner of a 30HP car (Chassis GSK.74) offering his self-developed electric oil and petrol gauges for inspection.
View original record NS 100 Banbury Road, Oxford. Jan. 27th 1934. WST x6033* Messrs. Rolls Royce Ltd., Derby. For the attention of Mr. Wormald. Dear Sir, I am the owner of an oldish 30 HP car (Chassis No GSK.74), and…

img082 Letter from W. Wykeham A. Robinson requesting a visit to the Derby works to demonstrate modified gauges.
View original record Acting on this assumption, I wrote to your London office and received a reply from Maj. Cox to the effect that it would be of more interest to the Company if I took the car to the Works but that he…

img083 Standardising Calorstat and Speedometer instruments across 20/25-HP, 40/50-HP, and Bentley chassis.
View original record Hs. - from Roy. WST *6033 ROY/MS1/P.29.1.34. See me HS 20/25-HP., 40/50-HP. AND BENTLEY CHASSIS. Please advise the possibility of standardising the following Instruments:- Packless Gland Co's…

img084 Letter to Wykeham A. Robinson Esq. inviting him to Derby to view some instruments.
View original record x6033 Expl. Dept. Hs.7/MJ. 31st. January 1934. Wykeham A. Robinson Esq., 100, Banbury Road, Oxford. Dear Sir, Your letter of January 27th. has been handed over to this Department. If it is convenient…

img085 Letter confirming a visit to the Derby works to demonstrate newly made instruments.
View original record 100 Banbury Road, Oxford Your ref. HS7/MJ. Messrs. Rolls Royce Ltd., Derby. For the attention of E.W. Hives Esq.. Feb. 3rd. 1934 86033. WST Dear Sirs, In reply to your letter of the 31st ult., and in…

img086 Letter to Wykeham A. Robinson Esq. postponing a proposed visit to the Works.
View original record r6033 Hs/Wst.3/MA. 3rd February, 1934. Wykeham A.Robinson Esq., 100, Banbury Road, Oxford. Dear Sir, With reference to your proposed visit to our Works next week as per our letter of the 31st ultimo…

img087 Letter confirming a telegram to postpone a visit and proposing alternative arrangements.
View original record 100 Banbury Road, Oxford. Feb. 5th 1934. 86033 WST Your ref. Hs/Wst.3/MA. Messrs. Rolls Royce Ltd., Derby. Dear Sirs, I beg to confirm the following telegram despatched to you this morning in reply to…

img088 Letter discussing a potential change of date for an engagement.
View original record moment, about my engagements. If it proves impossible for us to come on that day, I wonder if I may be allowed to leave it over till next week, say today week the 12th inst. Yours faithfully, Wykeham…

img089 Letter to Wykeham A. Robinson Esq. arranging an appointment.
View original record 86033 Hs/Wst.5/MA. 7th February, 1934. Wykeham A.Robinson Esq., A.M.I.E.E. 100, Banbury Road, Oxford. -Dear Sir, Referring to your letter of the 5th instant we should prefer you to come up and see us…

img090 Letter discussing and re-scheduling a proposed visit to the Works.
View original record 100 Banbury Road, Oxford. Feb. 9th 1934. 86033 Your ref. Hs/Wst. S/MA. Messrs. Rolls Royce Ltd. Derby. Dear Sirs, Very many thanks for your letter of the 7th inst. with reference to my proposed visit…

img091 Brief letter regarding gauges and fittings for trial on a chassis.
View original record gauges and fittings in case you might wish to keep them for trial on a chassis. Yours faithfully, Wykeham Q. Robinson.

img092 Letter to Mr. Robinson regarding proposals for an oil level indicator and hydraulic bumpers.
View original record 86033 Hs/Wst.3/MA. 17th February, 1934. Wykeham A.Robinson Esq., A.M.I.E.E. 100, Banbury Road, OXFORD. Dear Mr.Robinson, Following your visit to our Works last week and our subsequent discussion we…

img093 Request to despatch a box of resistance units, an instrument, and a drawing to Wykeham A. Robinson after inspection.
View original record 86033 D/BP. From Hs/Wst. c. to Roy. c. to G/MT. Hs/Wst.1/MA.19.2.34. Will you please arrange to despatch to Wykeham A.Robinson Esq., 100, Banbury Road, Oxford a small box containing resistance units…

img094 Report from the I.A.E. Research and Standardisation Committee on a new tachometer.
View original record COPY. 86033 I.A.E. RESEARCH AND STANDARDISATION COMMITTEE Research Department, 5, Bolton Road, Chiswick, W.4. No. 7140. Class 481, 21 May, 1934. A New Tachometer J. of Scientific Instruments, April,…

img095 Catalogues and patent information for electrical revolution indicators.
View original record r6033. 'Roy. From Hs/Wst. Hs/Wst.3/MA.3.7.34. Will you please obtain from The Record Electrical Co., Ltd., and Salford Electrical Instruments Ltd., complete catalogue of each firm's electrical…

img097 Quotation from Salford Electrical Instruments Ltd. for remote indicating tachometers and generators.
View original record ENGINEERING EMPLOYERS FEDERATION TRADE MARK S.E.I.LD 86033 NATIONAL SCHEME FOR DISABLED MEN SALFORD ELECTRICAL INSTRUMENTS LTD. TELEGRAMS: "SPARKLESS, SALFORD" TELEPHONE: BLACKFRIARS 8888-8889.…

img098 The conditions of sale for goods for use in the United Kingdom, exclusive of erection.
View original record A-1933. Conditions of Sale (A) of Goods for use in the United Kingdom exclusive of erection. 1. GENERAL.—The acceptance of this tender includes the acceptance of the following terms and conditions 2.…

img099 Price quotation for two types of Electrical Tachometer A.C. Generators.
View original record S.E.I. Ltd. CONTINUATION No. 1 Rolls-Royce Ltd., No.1 type Electrical Tachometer A.C. Generators, complete with rectifiers and with suitable pulleys and spring belt. PRICE..........£3..0..0 ea. No.2…

img100 Description of G.E.C. remote indicating tachometers and their generator.
View original record Instrument Dept. Technical Description No. 323. (June, 1933). THE GENERAL ELECTRIC CO., LTD. (G.E.C.) Head Offices: Magnet House, Kingsway, LONDON, W.C. 2. Telegrams: "ELECTRICITY, WESTCENT, LONDON."…

img101 Specification sheet for electrical generators and indicators with rectangular or sector pattern dials.
View original record Generator (continued). The generator can be provided with a pulley 7 (fig. 2), for driving, and a special coupling piece enables it to be interchanged to suit either a flexible shaft or a gear drive…

img102 Outline drawing of a Tachometer Generator.
View original record O.D. 17070 SALFORD ELECTRICAL INSTRUMENTS LTD SCALE 1/1 2-10-33 N.B OUTLINE TACHOMETER GENERATOR 4 3/4" 1 5/8" FLEXIBLE LEAD HD. 1

img103 Blueprint showing the arrangement and dimensions of a tachometer generator.
View original record ARRANGEMENT OF TACHOMETER GENERATOR SCALE 1/1 PROJECTION OF KEY FROM SPINDLE 1/16" DEPTH OF HOLE IN PLATFORM CAN BE 5/16 & AT A CENTRES GREATER THAN THOSE SHOWN. LENGTH OF LEADS 2' 6" FROM END SALFORD…

img104 Letter to Messrs. Elliott Brothers (London) Ltd. requesting a quotation to alter a millivoltmeter.
View original record 36033 Hs/Wst.4/MA. 2nd November, 1934. Messrs.Elliott Brothers (London) Ltd., Century Works, Lewisham, London, S.E.13. Dear Sirs, We beg to refer you to a small millivoltmeter which we obtained from…

img105 The purchase of an insulation testing voltmeter from Ferranti Ltd.
View original record x6033 EJJ. From Hs/Wst. Hs/Wst.9/MA.14.11.34. INSULATION TESTING VOLTMETER. Will you please order for us from Messrs. Ferranti Ltd., one of their small 2 1/2" portable pattern electrostatic voltmeters…

img106 Faulty Elliott microampere meter being sent for examination and repair.
View original record EJJ. From Hs/Wst. c. to Roy. c. to C/MT. c. to D/BP. 86033 Hs/Wst.2/HA.17.11.34. ELLIOTT MICROAMPERE METER. We are sending into the stores one of our small Elliott microampere meters No.1117948 which…

img107 Letter from Weston Electrical Instrument Co. Ltd. regarding the zero adjustment and transit protection of instruments.
View original record TELEGRAMS: INLAND. — PIVOTED, SURBITON. FOREIGN. — PIVOTED, SURBITON. CODES. — A.B.C. (6TH EDITION) LIEBERS, MARCONI, BENTLEY'S. TELEPHONES: ELMBRIDGE 6400 & 6401. WESTON ELECTRICAL INSTRUMENT CO.,…

img108 Request to obtain two small magnets from Messrs. Darwins of Sheffield.
View original record 6033 Roy. From Hs/Wst. Hs/Wst.2/MA.26.3.35. Will you please obtain from Messrs.Darwins Sheffield, two small magnets in the new Nickel Aluminium magnet steel alloy as per attached drawing EL120.…

img109 Blueprint for a magnet core with specified dimensions, material, and polarity.
View original record .750 DIA +10 -10 2.925 DIA -2 2.140 DIA +2 MAGNET CORE - SCALE 2/1 MATERIAL - NIFAL ONE OFF WITH N POLARITY ON CONCAVE SURFACE ONE OFF WITH S POLARITY ON CONCAVE SURFACE 2 HOLES .161 DIA +25

img110 Blueprint of a component showing dimensions and direction of flux.
View original record DIRECTION OF FLUX, .750 CTRS., 1.600, +.25, A, EL 120.

img111 Requesting the repair of a sticking Weston Galvanometer No.9895.
View original record To - Hs/Mr.West. WST 26033 Hs/Wd.1/GB.9.4.35. We hand you herewith a Weston Galvanometer No.9895 which is sticking. Will you please have this repaired and return to us as soon as possible…

img112 Letter from S. Smith & Sons regarding a Statoscope sent under packing slip S.110994.
View original record 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, LONDON.…

img113 Standardisation of parts for instruments with concave dials and modified slot illumination to improve lighting.
View original record RR 755 (SH) (57394. 30-1-34) BM 3/787/1. COMPLETED 8.5.35. 40/50 STANDARDISATION of PARTS. Date 1.3.35. Handwritten date: 16-4-35 X No. 6033. Drawing No. Part List Description of Parts. Instruments…

img114 Standardisation of instruments with concave dials and modified slot illumination.
View original record RR 758A (5H) (57312, 29-12-33) BM 3/640/2 COMPLETED 8.5.35. 20/25 STANDARDISATION OF PARTS. Date 16.4.35 X No. 6033. Drawing No. Part List Description of Parts. INSTRUMENTS WITH CONCAVE DIALS AND…

img115 Examination of a 'THIRTILITE' sample, concluding it is unreliable for continuous running and suggesting a more robust design.
View original record V6077 By. From Hs/Wst. c. to E. c. to Cx. Hs/Wst.1/MA.23.5.35. SMITH "THIRTILITE". We have examined the sample handed to us by By/Mtn. and do not consider that for continuous running it will be a…

img116 Letter providing general information on the function and components of an Oil Tester instrument for car types.
View original record x 6033. Instruments general London, July 21, 1935. Messrs.Rolls-Royce Limited, Nightingale Road, Derby. Gentlemen:- As requested by Mr.West, at our last interview, please find herewith, a photo of our…

img117 Sales letter from Lite Limited proposing the inclusion of an 'Oil Tester' device as standard equipment on cars.
View original record The mileage recommended in the instruction book by the car manufacturer, may be quite safe for one car owner to adhere to; in fact he may be underrunning his oil and wasting money. But his neighbor…

img118 Photograph with handwritten annotations detailing an oil tester body mounted on the engine side of a dashboard.
View original record Feed, from oil pressure gauge line Vent to allow levels to drain 3 way cock Control to knob on instrument board or dash drain to sump Oil Tester body - mounted on engine side of dash 3" 3 1/4"

img119 Promotional leaflet for 'The MAGIC EYE', a device by Imperial Oil Limited to test the quality of car oil.
View original record The MAGIC EYE is a clever device that will tell you the truth about the oil in your car There are only four principal parts to the Magic Eye. 1 A "window" consisting of two specially ground lenses…

img120 Letter from Cambridge Instrument Co. Ltd. arranging a visit from their Resident Engineer.
View original record TELEGRAMS: UNIPivot, KNIGHTS, LONDON. CODES: A.B.C. (5th AND 6th EDITIONS); WESTERN UNION; BENTLEY'S. TELEPHONE: SLOANE 9146 (4 LINES). CAMBRIDGE INSTRUMENT COMPANY, LIMITED. MANUFACTURERS OF…

img121 Confirmation of a telegram regarding the despatch of two dials to Hobson, Acton.
View original record CONFIRMATION OF TELEGRAM. Telegrams: INSTRUMENT, CAMBRIDGE. From CAMBRIDGE INSTRUMENT CO., Ltd., Chesterton Road, CAMBRIDGE. A Telegram, of which the following is a duplicate, was sent you this day,…

img122 Internal request to order two six-point Ignition Test Gaps for the Electrical Experimental Department.
View original record from EJJ/JV. to Hs/Wst. Order No. 816. Handwritten: 6033 WST EJJ/JV4/JC23. 10. 34 Re Ignition Test Gaps, Electrical Exp. Dept. Please order from Messrs. Autocar Electrical Equipment, Co., Ltd.,-- 2 -…

img123 Letter from Cambridge Instrument Company confirming the dispatch of two dials to Messrs. Hobsons Ltd.
View original record TELEGRAMS: INSTRUMENT, CAMBRIDGE. CODES: A.B.C. (5TH AND 6TH EDITIONS) WESTERN UNION: BENTLEY'S TELEPHONE: CAMBRIDGE No. 4415 76033 CAMBRIDGE INSTRUMENT COMPANY, LIMITED. HEAD OFFICE AND SHOWROOMS:…

img124 Letter from the editor of 'The Electrical Engineer' journal seeking feedback and contributions.
View original record GEORGE NEWNES, Ltd. 8-11 SOUTHAMPTON ST. STRAND, LONDON W.C.2 THE ELECTRICAL ENGINEER For WORKS ENGINEERS, INSTALLATION ENGINEERS, ELECTRICAL CONTRACTORS, GARAGE MANAGERS For ENGINEERS :: IN CHARGE OF…

img125 Internal request to order instrument sets for an Experimental Phantom III chassis, less the electric petrol gauges.
View original record 86033 Roy. From Hs/Wst. Hs/Wst.11/MA.1.11.35. EXPERIMENTAL PHANTOM III CHASSIS. Will you please order for us as quickly as possible three [handwritten annotation: two] sets complete of standard…

img126 Letter from the Experimental Department requesting catalogues from The General Electric Co. Ltd.
View original record 86033 EXPERIMENTAL DEPT. Hs.10/MA. 8th January, 1936. The General Electric Co.Ltd., Magnet House, Kingsway, London, W.C.2. Dear Sirs, Will you please send us your latest catalogues on all the…

img127 Letter to Mr. C.W. Nichols of S. Smith & Sons arranging a meeting to discuss instruments for chassis.
View original record r6033. HS/Wst.22/JH. 29th April, 1936. Mr. C.W. Nichols, Messrs. S. Smith & Sons, Cricklewood Works, London. N.W. 2. Dear Nichols, I would like to have a chat with you sometime when I am up in Town,…

img128 Letter from S. Smith & Sons (Motor Accessories) Ltd confirming an upcoming meeting on May 15th.
View original record r6033 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY [Logo: ENGINEERING AND ALLIED EMPLOYERS' NATIONAL FEDERATION] TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. [Logo:…

img129 Letter to C.W. Nichols of Messrs. S. Smith & Sons arranging a meeting.
View original record Y6033, Hs/Wst.10/JH. 6th May, 1936. C.W. Nichols Esq., Messrs. S. Smith & Sons, Cricklewood Works, London, N.W.2. Dear Nichols, In reply to yours of the 30th ult. I shall be at Messrs. Rotax during…

img130 Letter from S. Smith & Sons regarding experiments with new carbon graphitic bearings for tank attachments.
View original record x6033. 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,…

img131 Letter from the Sales Director's office arranging a meeting with H.E. West.
View original record TELEPHONE: GLADSTONE 3333 TELEGRAPHIC ADDRESS: SPEEDOFAC, PHONE, LONDON CRICKLEWOOD WORKS, LONDON, N.W.2. SALES DIRECTOR'S OFFICE 86033 8th May 1936. H. E. West, Esq., Messrs. Rolls-Royce Ltd., DERBY.…

img132 Letter to S. Smith & Sons Ltd concerning testing petrol tank units with modified bearings.
View original record 86 033. Hs/Wst.12/JH. 9th May, 1936. Messrs. S. Smith & Sons Ltd., Cricklewood Works, London. N.W.2. For the attention of Mr. Russell. Dear Sirs, Re Petrol tank attachments. In reply to your letter of…

img133 Standardisation of parts for adapting the Phantom III instrument panel to the 20/25 HP model.
View original record COMPLETED 4.9.36. 20/25 STANDARDISATION OF PARTS. Date 3.6.36. 19-8-36 X No. 6033. Drawing No. Part List Description of Parts. PHANTOM III INSTRUMENT PANEL ADAPTED TO THE 20/25 H.P. Origin. It is…

img134 Cost comparison document for an old and a new part related to the 'N' Series Chassis.
View original record Estimated cost of extra Jigs, Tools and Equipment NIL. Could be brought on to production at the first Chassis in "N" Series (Without Scrap). Sft/GH.24.6.36. STAMP: RECEIVED Material £. s. d. Labour £.…

img135 Letter from Magnet House responding to an enquiry about Tachometer Generators.
View original record CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O. AND THE LEADING HOME AND OVERSEAS RAILWAYS. NATIONAL SCHEME FOR DISABLED MEN BIRMINGHAM Telephone: MIDLAND 4421, 4422, 4432. Telegraphic…

img136 Price list and specification for various types of generators and associated instruments.
View original record Alt. No.2 type Generating A.C. and without Rectifier. Dimensions as Print OD.17359 attached.... £3. 7.6d. " Alt. No.3 type Generating Direct Current. Dimensions as Print…

img137 Page 2 of a letter from The General Electric Co. Ltd. detailing an offer and payment terms.
View original record THE GENERAL ELECTRIC CO., LTD. CONTINUATION NO. ....................... -2- which type you would prefer we shall be pleased to forward you our detailed offer. TERMS - 2½% Monthly Account. Yours…

img138 Outline drawing of a tachometer component with a flexible lead.
View original record 4 3/4" FLEXIBLE LEAD. OUTLINE TACHOMETER G

img139 Blueprint of a pulley for an engine generator, showing dimensions and an exploded view.
View original record O.D.17070 SCALE 1/1 2-10-33 N.B SALFORD ELECTRICAL INSTRUMENTS LTD 1 5/8" 2 B.A THREAD 5/32" VIEW SHOWING PULLEY REMOVED ENGINE GENERATOR Sticker Text: Salford Electrical Instruments, Ltd. ENCLOSURE…

img140 Arrangement drawing for a No. 3 Tachometer.
View original record LARGE END DIA = 19/32, TAPER 1 IN 10 ON RADIUS, 2.64, 7/16 WH., 1/2", 19/32, 5/16, 3/16, 1 1/4", 2", 7", 8 21/32", ARRANGEMENT, OF Nº 3 TACHOMETER

img141 Arrangement drawing for a starter generator.
View original record OD18456 5" 7/16 120° 6" 7/8 2" 5/8 2 1/64" 3/8" B.S.WH.TAP 1" 3 - 11/32 FIXING SLOTS ARRANGEMENT STARTER GENERATOR SCALE 1/2 FULL SIZE SALFORD ELECTRICAL INSTS LTD EB 8.2.35

img142 Arrangement of Tachometer blueprint.
View original record STANDARD DRILLING SUPPLIED UNLESS OTHERWISE SPECIFIED. 2-HOLES TAPPED 1/4 WHIT. 5/16 DEEP. LENGTH OF LEADS 2' 6" FROM END. ARRANGEMENT OF TACHOMETER. SCALE 1/1. © 14-9-34. GEN. MOD. 5 1/2". 11/16". 1…

img143 Arrangement drawing for a power generator.
View original record OD.17359 3" 7/16" 9/16" PROJECTION OF KEY FROM SPINDLE 1/16" .080 .354 END VIEW OF SHAFT DEPTH OF HOLE IN PLATFORM CAN BE 5/16" AT ANY CENTRES GREATER THAN THOSE SHOWN ARRANGEMENT POWER GENERATOR…

img144 Arrangement drawing of a No. 4 Tachometer with dimensions.
View original record LARGE END DIA = 19"/32 TAPER = 1 IN 10 ON RADIUS 1/2" 19"/32 4 1/16" 9 3/4" 3" 7" 7/16 SLOT ARRANGEMENT OF N°4 TACHOMETER WATE...

img145 Arrangement drawing for a drip-tight tachometer generator.
View original record OD 18457 5 1/2" 1 1/2" 5 1/2" FIXING CENTRES 7" ARRANGEMENT TACHOMETER GENERATOR DRIP-TIGHT SCALE 1/2 FULL SIZE SALFORD ELECTRICAL INSTS. LTD EB 7.2.35

img146 Arrangement drawing for a No. 4 Tachometer and a water-related component.
View original record LARGE END DIA = 19/32" TAPER = 1 IN 10 ON RADIUS 1/2" 19/32" 4" 1/16 9" 3/4 7/16 SLOT 7" 3" ARRANGEMENT OF No 4 TACHOMETER WATER

img147 Inquiry to the Foster Instrument Co. Ltd. for a 'Resilia' Patent Dial Recorder to measure temperature on aero engines.
View original record r6033 Hs/Wst.12/JH. 25th August, 1936. The Foster Instrument Co.Ltd., Letchworth, Herts. Dear Sirs, We are writing to inquire if you can supply us with one of your recorders, say the "Resilia" Patent…

img148 The closing of a letter requesting delivery time and price for an order.
View original record -2- We shall be pleased to hear from you regarding the question, and also to know the time in which you could delivery on receipt of the order, together with the price. Yours faithfully, FOR…

img149 Letter from Joseph Lucas Ltd. discussing the supply of regulators, new WT.22 horns, and non-tracking bakelite samples.
View original record HEAD OFFICES & WORKS: GREAT KING ST., BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. TRADE MARK x6033 "KING OF THE ROAD" LAMPS, HORNS,…

img150 Letter from Joseph Lucas Limited advising the return of a Scintilla magneto.
View original record HEAD OFFICES & WORKS: GREAT KING ST., BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. TRADE MARK 86033 "KING OF THE ROAD" LAMPS, HORNS,…

img151 Letter from Joseph Lucas Limited regarding an omitted contact breaker cover for a Scintilla magneto.
View original record HEAD OFFICES & WORKS: GREAT KING ST., BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. TRADE MARK JOSEPH LUCAS LIMITED GREAT KING STREET…

img152 Letter from Weston Electrical Instrument Co. Ltd. regarding the receipt and immediate return of 4 shunts.
View original record V6033 TELEGRAMS: INLAND. — PIVOTED, SURBITON. FOREIGN. — PIVOTED, SURBITON. CODES. — A.B.C. (4TH EDITION) LIEBERS, MARCONI, BENTLEYS. TELEPHONES: ELMBRIDGE { 6400. 6401. 6402. } WESTON ELECTRICAL…

img153 Letter to Cambridge Instrument Co. Ltd. regarding the return of an 'Exhaust Gas Tester' for service.
View original record C. to O.O. y6033. Expl. Dept. Rm /CTS.3/MJ. 26th. October, 1936. The Cambridge Instrument Co. Ltd., Cambridge. Dear Sirs, We are returning, under separate cover, One "Exhaust Gas Tester" to be cleaned…

img154 Despatch of a Cambridge Exhaust Gas Tester for return to the manufacturer.
View original record Mr. Brown. From Rm/CTS. Central Stores. J 6033 Rm/CTS.2/MJ.26.10.36. We are sending into the Stores for despatch, one "Cambridge Exhaust Gas Tester" No.C.188414. This is a delicate instrument, so will…

img155 Experimental department report on the first model of an instrument board dimmer unit.
View original record EXPERIMENTAL DEPARTMENT REPORT. REFERENCE: 40135 Rm/Wst.3/JH.18.11.36. Subject of Report: Instrument Board Dimmer Unit, First Model. General Conclusions: Not satisfactory. Modifications required.…

img156 Condensation issues in Bentley instruments and potential solutions, including ventilation holes or alternative varnish.
View original record To Rm/Wst. 6083 BY/RD.2/B.5.1.37. INSTRUMENTS. We get occasional complaints of condensation on Bentley instruments, and this is thought to be due to moisture being retained in the wax with which the…

img157 Customer feedback on instrument quality and reliability, specifically from Mr. S. Harris.
View original record 6033. S/W Wst. C15/C15.2.37 We have been having a good deal of correspondence with Mr.S.Harris, who has been an owner of our cars since pre-war days. He is an enthusiastic owner-driver and a very good…

img158 Complaint letter to Mr. Cowen regarding the poor quality of instruments on Rolls Royce and Bentley vehicles, specifically the Phantom III.
View original record COPY Hotel Metropole, Monte-Carlo. February 8th 1937 W.Cowen, Esq., Messrs.Rolls-Royce Ltd., 14-15 Conduit Street, W.1. Dear Mr.Cowen, Re Rolls and Bentley. Many thanks for your long explanatory…

img159 Page 2 of a letter from S. Harris critiquing side play slack and requesting older quality instruments.
View original record -2- By now Honeyman will have received my last letter telling him there is side play slack. Your tester stated it was to allow for heat distortion - on the spot, he obviously could not ascribe it to…

img160 Response letter to a customer's criticism regarding the instruments on a Phantom III chassis, particularly the ammeter.
View original record C.1/MK: S. Harris Esq., 80/82, Wardour Street, LONDON, W. 1. Dear Mr. Harris, Your criticism of the instruments of your Phantom III chassis have been reported to me and I have had the matter…

img161 Letter to S. Harris Esq. discussing instrument dial manufacturing, pricing, and explaining the causes of slack in the controls.
View original record -2- S. Harris Esq. 1st February 1937. its price is higher than that of the ammeter we were fitting on the later Phantom II chassis. On early Phantom IIs, however, we fitted an instrument which was…

img162 Letter to S. Harris Esq. discussing the steering column, instrument board and chassis component improvements.
View original record -2- S. Harris Esq. 1st February 1937. the steering column and instrument board. In conclusion, I would repeat my assurance that there is no question of any cheapening of the instruments or, in fact,…

img163 Responding to criticisms about the change of instrument suppliers for the Phantom III and the quality of the new parts.
View original record 6033 W/S. To C. from Rm/Wst. c. to Hs. RE. PHANTOM III. INSTRUMENTS. Replying to your C.15/C.15.2.37., with regard to our instruments generally, the reason we changed over to Messrs Smiths was that we…

img164 Covering order for units obtained on loan notes that were used for experimental tests.
View original record bf. 6033. To Roy/Ms. c. to G/JWH. Rm/RC.9/JH.12.11.38. We cannot trace the units mentioned on loan notes Nos.22995 and 24598 which were obtained from Messrs. Smith & Sons by Mr. West in 1936. We…

img165 The unavailability of specific French-made car de-frosters from a supplier.
View original record To:- Rm/WYM. [Handwritten] Rm Please note [Signature] M/Swdl.1/AC. 6.2.41. [Handwritten] Uee 6033 With reference to your note re de-frosters have personally visited Hopkins, of 135 Kilmarnock Road.…

img166 Letter from S. Smith & Sons acknowledging receipt of a telegram postponing Mr. Moss's visit.
View original record elect S. SMITH & SONS (MOTOR ACCESSORIES) LTD. Cables: SPEEDOFAC, LONDON Codes: MARCONI, COMMERCIAL BENTLEY'S CRICKLEWOOD WORKS EDGWARE ROAD LONDON, N.W.2 Telephone: GLADSTONE 3333 Telegrams:…

img167 Letter to C.W. Nicholls of S. Smith & Son Ltd. regarding the postponement of Mr. Moss's visit.
View original record elect 16th June, 1941. Rm.9/RH. C.W. Nicholls Esq., Messrs. S. Smith & Son Ltd., Cricklewood Works, Edgward Road, LONDON. N.W.2. Dear Nicholls, I was sorry I had to postpone Mr. Moss's visit. We shall…

img168 Letter from S. Smith & Sons (M.A) Ltd confirming a visit from Mr. Moss.
View original record elect. S. Smith & Sons (M.A) Ltd. Telephone: Gladstone 3333 Telegraphic Address: Speedofac, Phone, London. Cricklewood Works, London, N.W.2 19th June, 1941 W.A.Robotham, Esq., Messrs.Rolls-Royce…

img169 Letter to Mr. Nicholls of S. Smith & Sons Ltd. arranging a meeting time for Mr. Moss in Derby.
View original record elet 20th June, 1941. Em.4/RH. C.W. Nicholls Esq., Messrs. S. Smith & Sons Ltd., Cricklewood Works, LONDON. N.W.2. Dear Mr. Nicholls, Thank you for your letter of the 19th. Will you please let me know…

img170 Concerning a delay in obtaining information for bought-out electrical dashboard parts.
View original record To: Hm/Wyn. from Rm/RC. 6033 RE MYTH ELECTRICAL EQUIPMENT We are still held up for information concerning the following brought out parts :- All dashboard fittings, which include the following parts…

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