Rolls-Royce Archives
| Identifier | Entry | ||
| 05-page001 | Record sheet for a Lucas & Martin Dynamo, detailing its assessment and outcome. | ||
| View original record | DESCRIPTION:- Lucas & Martin Dynamo Section: 3100/1600 X295 Date sheet from office. 8.9.11 Date received. 8.9.11 Date Works instructed. - Material received. Reported T.D. Office. Reported to office.… | ||
| 05-page002 | Test report on a lighting dynamo, noting issues with the mercury cut out and variations in current. | ||
| View original record | Lighting Dynamo. X295 T. Y. M. 1600 3100 Section Dynamo tested on bench works satisfactory except mercury cut out does not seem reliable regarding exact speed when it cuts in and out. Does not cut in,… | ||
| 05-page003 | Performance of a lighting dynamo under half load. | ||
| View original record | R.R. 140 / 120 - R.F. 579 S&C(S) G. 1823. The Lighting Dynamo X295 Half load as controlled by switch also works satisfactoril, the little resistance bobbin which is fixed in the switch when working… | ||
| 05-page004 | Introduction explaining the necessity for a constant current output for electric lighting systems in vehicles. | ||
| View original record | Y.275 INTRODUCTION WITH the introduction of Electric Lighting for the illumination of Motor Cars, Trains, etc., in which the speed of the vehicle undergoes considerable variation it is absolutely… | ||
| 05-page005 | Three methods of dynamo output regulation, advocating for the purely electrical system used in the T. & M. Dynamo. | ||
| View original record | (1) By controlling the speed of the dynamo. (2) By mechanical regulation of the output. (3) By purely electrical regulation. (1) In this system the speed of the dynamo is usually regulated either by a… | ||
| 05-page006 | Description of the T. & M. Dynamo, its construction, and the principle of its operation using a four-brush system. | ||
| View original record | Description of the T. & M. Dynamo. The T. & M. Dynamo may be briefly described as consisting of a shunt wound dynamo to which has been applied a new arrangement and interconnection of brushes which… | ||
| 05-page007 | The theory of operation for the T. & M. Dynamo. | ||
| View original record | Theory of the T. & M. Dynamo. In order to clearly follow the action of the machine the various connections and arrangement of pole-pieces and brushes are shown diagrammatically in Fig. 1. The main… | ||
| 05-page008 | Circuit diagrams for a dynamo charging and lighting system. | ||
| View original record | Fig. III, BATTERY, AUTOMATIC, CUT OUT, LAMPS, FIG. I, A, B, S, S', R, p, V, O, + LINE, - LINE | ||
| 05-page009 | Page describing the armature reaction and self-regulating characteristics of a machine under varying speed and load. | ||
| View original record | As the speed increases the machine begins to supply current to the line, and an armature reaction is set up which displaces the axis of the field forward which has the effect of reducing the current… | ||
| 05-page010 | Page explaining the T. & M. Patent Dynamo and its application in automobile lighting systems. | ||
| View original record | loss in the armature will only be half of what it would be with an ordinary dynamo. In other words, given two machines having the same size armatures, the one constructed according to the T. & M.… | ||
| 05-page011 | Performance graph showing Dynamo output in Amperes and Volts against Dynamo revolutions per minute. | ||
| View original record | FIG. IV. DYNAMO - REVS. PER MINUTE 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 AMPERES & VOLTS 2. 4. 6. 8. 10. 12. 14. LAMP LOAD DYNAMO OUTPUT VOLTS AT… | ||
| 05-page012 | Specifications and performance details for a T. & M. Patent Dynamo. | ||
| View original record | The curves in Fig. IV represent the voltage of the battery when supplying current to the lamps and effectively illustrate the very small voltage variation even when the Dynamo is charging the battery… | ||
| 05-page013 | Departmental memo regarding the examination of the T. & M. Car Lighting system. | ||
| View original record | DEPARTMENTAL MEMO. Issued 19th Sept. 1911 Handwritten note: 55d meeting This column is for Name of Person addressed. DATE. [First entry] Reference: CJ11/H19911 x295 To: Mr. Naden. Derby. Date: 19/9/11… | ||
| 05-page014 | With a large 'X' and the repeated abbreviation 'DWG'. | ||
| View original record | DWG DWG DWG X | ||
| 05-page015 | The testing of the Trier & Martin lighting system and its advantages over the C.A.V. system. | ||
| View original record | Y 295 C.C. 28.9.11. X.295. TRIER & MARTIN LIGHTING SYSTEM X.294. With reference to the article from the "Autocar" submitted by Mr. Johnson, we have tested the above system of lighting but do not… | ||
| 05-page016 | List of disadvantages concerning a mercury switch, including its junction lag, awkward fixing, and potential for oxidation. | ||
| View original record | -2- Contd. The disadvantages are :- (a) The mercury switch making and breaking contact at minimum speed appears to lag a little in its junction also it prevents us supporting the dynamo from a pivot… | ||
| 05-page017 | Letter to Trier & Martin inquiring about their latest dynamo and control methods for a post-war chassis. | ||
| View original record | R.H. Bks. (500T) (R.D. 408. 26-4-17) Bm. 270633. K 292 EPC3/T211218. 21st. December 1918. Messrs. Trier & Martin, Trinity Works, New Church Road, Camberwell, E.C. Dear Sirs, RE DYNAMO FOR POST-WAR… | ||
| 05-page018 | Letter from Trier & Martin redirecting an enquiry for lighting dynamos to their new sales controller, S. Smith & Sons. | ||
| View original record | X. 295. TRIER & MARTIN LD. PATENTEES & MANUFACTURERS OF AUTOMOBILE ACCESSORIES TRINITY WORKS NEW CHURCH ROAD, CAMBERWELL LONDON, S.E.5. Telegrams: "TRIMARLIM" CAMBER LONDON Telephone:- HOP 1291 23rd… | ||
| 05-page019 | Page from 'The Motor' magazine detailing post-war accessories, including Smith starters, lighting dynamos, and switchboards. | ||
| View original record | 31st December, 1918. X 295 497 The Motor POST-WAR ACCESSORIES.—Contd. It will be seen that all terminals are mounted under this cover, and they are thus protected from accidental short-circuit. It is… | ||
| 05-page020 | Article from 'The Motor' magazine describing the Smith's single-jet carburetter for high-speed engines. | ||
| View original record | The Motor 498 21st December, 1918. SMITH'S SINGLE-JET CARBURETTER. An Entirely New Carburetter Especially Adapted for High-speed Engines. IN addition to the popular four-jet carburetter manufactured… | ||
| 05-page021 | Article detailing new Smith post-war lighting, starting, and combination dashboard accessories. | ||
| View original record | The Motor X. 295 495 21st December, 1915. POST-WAR ACCESSORIES. New Smith Lighting and Starting Set. Combination Dash Fittings, Including Bezel Wind Switch, Clock and Speedometer. MANY of the new… | ||
| 05-page022 | Page from 'The Motor' magazine with articles on road care, a Ford assembly scheme, and a new Austin chassis. | ||
| View original record | 21st December, 1918. 495 The Motor NEWS.—Contd. CARE OF ROADS IN WINTER. Now that the reconstruction and repair of roads is receiving the attention of the authorities it is to be hoped that the… | ||
| 05-page023 | Letter to S. Smith & Sons Ltd. arranging a demonstration of their post-war car lighting and starting system. | ||
| View original record | EFC3/T3119 X.295 8th January 1919. Messrs. S. Smith & Sons, Ltd., Midland Service Depot, 122 Alma Street, Birmingham. Dear Sir, FOR THE ATTENTION OF MR. C.W.Nichols. In answer to yours of the 6th… | ||
| 05-page024 | Letter from S. Smith & Sons regarding their range of motor accessories and the takeover of Trier & Martin. | ||
| View original record | X. 295. ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY AND… | ||
| 05-page025 | Letter from S. Smith & Son (Motor Accessories) Ltd. proposing new post-war instruments and accessories. | ||
| View original record | S. Smith & Son (Motor Accessories) Ltd., 179-185, Great Portland Street, London, W.1. Continuation No. Messrs. Rolls-Royce Ltd. re Petrol Feed System, carburetter, Electric horn etc. We enclose… | ||
| 05-page026 | Letter from S. Smith & Sons (Motor Accessories) Limited to Rolls-Royce arranging a meeting to discuss post-war equipment. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY AND ROYAL NAVAL… | ||
| 05-page027 | Scheduled visits from suppliers regarding post-war chassis electrical equipment. | ||
| View original record | To EY. from EFC. c. to EY/HBO. c. to EH. X 295 EFC1/T14.1.19. X.3374 - X.664. Kindly note that the following visits from representatives of other firms are in prospect this week :- (1) X.3014. To-day… | ||
| 05-page028 | The inspection of a dynamo and switch from Messrs. Smith & Son for a 40/50 chassis. | ||
| View original record | C.S.C F.H.R. BY. January 15. 1919. BY1G/F15119. X. 295 RE DYNAMO AND SWITCH GEAR FOR 40/50 CHASSIS. X 294 We wrote to Messrs. Smith & Son, in order to inspect their dynamo and switch. The work they… | ||
| 05-page029 | Constant current control system for a shunt wound machine, with notes on a sample dynamo and instrument fixing methods. | ||
| View original record | - 2 - BY10/P15119. contd. shunt wound machine. The control system follows the constant cur- rent scheme and is obtained by short circuiting two brushes at right angles to the two main brushes through… | ||
| 05-page030 | Letter discussing a potential issue with springs, sending a sample switch and comparing different electrical schemes. | ||
| View original record | BY10/P15119 contd. - 3 - 15.1.19. the springs are well made this should not actually occur, but it is one which may occur if the work turned out is poor. I am sending herewith a catalogue which will… | ||
| 05-page031 | Letter from S. Smith & Sonsl Ltd. regarding the specifications and supply of a speedometer, watch, and dynamo lighting set. | ||
| View original record | S. Smith & Sonsl Ltd. 179-185 Great Portland St. LONDON W.1. Ref. - CWN/LLL. 20th January, 1919. Messr.s Rolls-Royce Ltd., Nightingale Road, Derby. For the attention of Mr. Bailey. Dear Sirs,… | ||
| 05-page032 | Letter from S. Smith & Sons regarding electric lighting equipment and the theory of a dynamo. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY and ROYAL NAVAL… | ||
| 05-page033 | Letter regarding bench tests on a dynamo. | ||
| View original record | (2). R.R.Ltd. Hoping that your Bench tests on the Dynamo will prove satisfactory, and assuring you of our assistance in case you may require it. We are, Yours faithfully, pp. S.Smith & Sons(M.A)Ltd A… | ||
| 05-page034 | Urging the delivery of a sample dynamo from S. Smith & Sons and enquiring about C.A.V. dynamos. | ||
| View original record | R.R. 125a. (500 T) (K.P. 605. 26-4-17) Rm. R15633. To C.O. from EPC. EPC5/T18.2 19. 18th February 1919. RE DYNAMOS X.294. Will you kindly write to Messrs. S.Smith & Sons, 179-185 Great Portland… | ||
| 05-page035 | Letter from S. Smith & Sons regarding the successful sourcing of a Weston Mott Ampere Meter and a delay on a new Dynamo sample. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY and ROYAL NAVAL… | ||
| 05-page036 | Letter to Messrs. Smith & Sons regarding a dynamo and a Weston Ammeter. | ||
| View original record | X. 295 ZPC4/AT. 24.2.19. Messrs. Smith & Sons, 175-185, Great Portland Street, LONDON. W.1. Dear Sirs, We are in receipt of your letter CWM/LL of the 19th inst. and note your remarks concerning the… | ||
| 05-page037 | Letter from S. Smith & Sons acknowledging receipt of remarks regarding a sample post-war Dynamo. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY AND ROYAL NAVAL… | ||
| 05-page038 | Letter from S. Smith & Sons confirming they will send a special dynamo for bench tests. | ||
| View original record | X.295. S.Smith & Sons Limited, 179-185 Great Portland St., LONDON, W.1. 20th March 1919. Wd/WSC/H. 19319. HRB/LLL Messrs. Rolls-Royce Ltd., Nightingale Road, DERBY. Dear Sirs, We are in receipt of… | ||
| 05-page039 | Test procedures for charging with a Smith (T & M) Type A Dynamo under various connections. | ||
| View original record | contd. -2- 3.4.19. X 295 SMITH (T & M) TYPE A DYNAMO (E) Charging. Variously connected. (a) As plain shunt wound machine (both control brushes removed ) (b) One control brush only in action (observe… | ||
| 05-page040 | Forwarding a copy of a letter from Messrs. S. Smith & Sons regarding a model 2, 12-volt dynamo being dispatched. | ||
| View original record | R.R.LTD (200 Y) (S.D. 402. 26-4-17) Ess. 1/12412. EFC. from BY: X.295 BY8/P9/4/19. DYNAMO. I am sending you herewith copy of a letter received from Messrs.S.Smith & Sons, in which they point out that… | ||
| 05-page041 | To Mr Clark detailing the receipt of an accumulator, ammeter, and resistance wire for various experiments. | ||
| View original record | X 295 Mr Clark. Wd/Dn3/HP14419. 14th April 1919. Please note that we have received from the Tudor Accumulator Co. 1 Celluloid Accumulator 6 Clg, 9 cell type, stores receiving sheet 155922 of the 9th… | ||
| 05-page042 | Letter from S. Smith & Sons regarding the dispatch of handmade sample head, side and tail lamps for review. | ||
| View original record | COPY X 295 S. SMITH & SONS (M.A.) LTD. 179-185, GREAT PORTLAND ST. LONDON. W.1. April 14th 1919. CWN/LJJ. Messrs Rolls-Royce Ltd., Nightingale Road. D E R B Y. Dear Sirs, For the attention of Mr.… | ||
| 05-page043 | Dynamos supplied by Messrs. Smith & Son for testing purposes. | ||
| View original record | To EFC. from HY. U. x.295 BY4/T15/4/19. CHASSIS - RE DYNAMO. Messrs. Smith & Son have now supplied us with dynamos for testing purposes. They have actually sent us on 2 of these, namely one type A and… | ||
| 05-page044 | From EY to Mr. Clarke regarding Mr. Royce's strong criticism of dynamo fittings from Smith & Sons. | ||
| View original record | To Mr. Clarke from EY. ~~send to Mr.~~ X 295 BY7/T15/4/19. DYNAMO AND ELECTRICAL FITTINGS. Referring to Messrs. Smith & Sons dynamo fittings, I would like to point out that the combined volt meter and… | ||
| 05-page045 | Sample head lamps from Messrs. Smith & Sons for evaluation by the Experimental Department. | ||
| View original record | To RPC. from BY. c.c to EP. X 275 BYB/T18/4/19. RE HEAD LAMPS - MESSRS. SMITH & SONS. I am sending you herewith copy of a letter on head lamps received from the above people. I wish Mr. Pope to supply… | ||
| 05-page046 | Correspondence regarding the dispatch of a 12-volt Dynamo, a rotary switch, and a delay in a set of lamps. | ||
| View original record | COPY. X 295 S. SMITH & SONS LTD. 179-85, GREAT PORTLAND ST. LONDON. W.1. 7th April 1919. CWH/LLL. Messrs Rolls Royce, Ltd. Nightingale Road. DERBY. Dear Sirs, For the attention of Mr. Bailey. We have… | ||
| 05-page047 | Lighting installation, discussing Weston meters, cut-outs, and modifications to a Bijur dynamo for experiments. | ||
| View original record | M.R. 586a./5m./T/C/S. Oct. 1918-500 C. 5115 X.295 To R. from EFC. c. CJ. EFC1/T25.4.19. X.3362 RE LIGHTING INSTALLATION AT W.W. We have received from the Weston Company one of their Model 289 Weston… | ||
| 05-page048 | Delivery and examination of various car lamps supplied by Smiths. | ||
| View original record | R.R. 70M/C 10M. 12-18 G. Wks. To EPC. from BY/JH. BY/JHS/T28/4/19. X.275 RE LAMPS. Please receive herewith two head lamps, two side lamps and one tail lamp which have been supplied by Smiths. Will you… | ||
| 05-page049 | Letter to Messrs. Smith & Sons regarding the return and testing of a submitted lighting set, accumulator, instruments, and dynamos. | ||
| View original record | EPC1/T. 1st. May 1919. X.295 Messrs. Smith & Sons, 179-185 Great Portland Street, London, W.1. Dear Sirs, RE LIGHTING SET. We are instructing to be returned to you the set of lamps and the accumulator… | ||
| 05-page050 | Sending a lighting set and battery to the Despatch Stores for return to Messrs. Smith & Sons. | ||
| View original record | To Shipping Office. c. to Despatch Stores. EFC2/T1.5.19. X.295 RE LIGHTING SET. ---------------- We are sending into the Despatch Stores the following, which are parts of a lighting set recently… | ||
| 05-page051 | Letter from S. Smith & Sons Ltd. regarding lamps, lighting equipment, and instrument boards. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY AND ROYAL NAVAL… | ||
| 05-page052 | Letter from S. Smith & Son (Motor Accessories) Ltd. regarding the supply and potential modification of dynamos. | ||
| View original record | S. Smith & Son (Motor Accessories) Ltd. Continuation No. Messrs. Rolls-Royce Ltd. Needless to say we shall be only too pleased to make up any special designs to your esteemed instructions, and if you… | ||
| 05-page053 | Returning sample speedometer and clock instruments supplied by Messrs. Smith & Sons. | ||
| View original record | Mr Mills from BY. BY5/P6/5/19. C.E / 6 X 295 SPEEDOMETER - MESSRS.SMITH & SONS INSTRUMENTS. I am sending you herewith two sample instruments supplied by Messrs. Smith & Son for our examination and if… | ||
| 05-page054 | Letter from S. Smith & Sons confirming receipt of a sample Lamp and Battery and that credit is being passed. | ||
| View original record | ALL COMMUNICATIONS TO BE ADDRESSED TO THE FIRM & NOT TO INDIVIDUALS. GOVERNMENT CONTROLLED ESTABLISHMENT. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, INDIA OFFICE, ROYAL AIRCRAFT FACTORY AND ROYAL NAVAL… | ||
| 05-page055 | Letter to Messrs. Smith & Sons regarding instrument boards and the examination of dynamos. | ||
| View original record | X.295 EPCL/AT. 9.5.19. Messrs. Smith & Sons, 179-185 Great Portland Street, London. W.1. Dear Sirs, Many thanks for your letter of the 5th inst. and for your offer of the services of your Instrument… | ||
| 05-page056 | The Smith (T & M) Type A and Type 3A dynamos supplied by S. Smith & Sons. | ||
| View original record | To R. from EPC. c. to CJ. c. to Em. c. to E. c. to BY. c. to EP. c. to DA. c. to EH. X.295 THE SMITH (T & M) TYPE A AND TYPE 3A DYNAMOS The above dynamos have been supplied to us as samples by Messrs.… | ||
| 05-page057 | Comparative performance report on dynamo machines and a cut-out, comparing them to models from Lucas and C.A.V. | ||
| View original record | Contd. -2- EFC4/T12.5.19. moment is to give the comparative performance under normal conditions of one of these machines with the other machines we have tested. This will be found expressed as curves… | ||
| 05-page058 | Continuation of a report comparing the performance and components of various dynamos. | ||
| View original record | Contd. -3- three contact surfaces, two of copper and one of metal which looks like platinum, on which the break will be taken. Each of the two copper contact surfaces is as large as that provided on… | ||
| 05-page059 | Specification sheet comparing Smith (T & M) 12 Volt Chassis Dynamos, Type A and Type 3A. | ||
| View original record | 126 / A/3. Page 1. App. to P.I. March 11. 1919. .295.-PARTICULARS OF SMITH (T & M) 12 VOLT CHASSIS DYNAMOS. Type A. Type 3A. Carcase. Material I.S.W.T. I.S.W.T. Length 6.75 5.50 Diameter 5.69 5.69… | ||
| 05-page060 | Performance curves for a Kestrel XI B engine, showing B.HP and fuel consumption against R.P.M. | ||
| View original record | PERFORMANCE CURVES ENGINE NO. KESTREL XI B COMP. RATIO 7.0:1 SUPERCHARGER GEAR RATIO 10.0:1 FUEL D.T.D. 230 MAGNETO SETTING 50 DEG B.H.P. CORRECTED. ALT. 1000 FT. B.H.P. OBSERVED. FUEL CONSUMPTION.… | ||
| 05-page061 | Comparative output curve graph for C.A.V. & R.R., Lucas E3YE, and Smith (T&M) Type A dynamos. | ||
| View original record | COMPARATIVE OUTPUT CURVES OF C.A.V. & R.R. LUCAS E3YE AND SMITH (T&M) (TYPE A) TYPE DYNAMOS WEIGHTS C.A.V. & R.R. 32.5 lbs LUCAS E3YE 29 lbs SMITH (T&M) 32 lbs Y-AXIS: OUTPUT (AMPERES) X-AXIS: DYNAMO… | ||
| 05-page062 | Letter from S. Smith & Sons acknowledging remarks regarding an instrument board and dynamos. | ||
| View original record | 296 CONTRACTORS TO ADMIRALTY WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET TELEX, LONDON S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page063 | Distribution and return of sample apparatus from Messrs. Smith & Sons. | ||
| View original record | To Shipping Office. c. to Despatch Stores. c. to Accounts Dept. EFC2/T15.5.19. X.295. RE SAMPLE APPARATUS RECEIVED FROM MESSRS. SMITH & SONS We are sending into the stores one type 3A dynamo and one… | ||
| 05-page064 | Sending a proof copy of a letter to Messrs. Smith regarding dynamo lighting equipment. | ||
| View original record | To Bn. from EFC. EFC2/AT15.5.19. RE X.295.-SMITH DYNAMO LIGHTING EQUIPMENT. We attach proof copy of a letter we propose sending to Messrs. Smith, as arranged this morning in conversation. We shall be… | ||
| 05-page065 | Suggesting modifications to a draft communication with Smith regarding the assessment of their dynamo lighting equipment. | ||
| View original record | To EPC. from Bn. Bn13/P16.5.19. RE X.295 - SMITH DYNAMO LIGHTING EQUIPMENT I return your draft herewith, it is exactly the kind of attitude I had in my mind, and the draft will do very well. I would… | ||
| 05-page066 | Letter to S. Smith & Sons detailing the test results of a Type 3A dynamo and its subsequent return. | ||
| View original record | X.295 EPCL/T. 19th May 1919. Messrs. S. Smith & Sons, 179-185 Great Portland Street, London, W.1. Dear Sirs, RE DYNAMO LIGHTING EQUIPMENT. Having now made some tests of the two dynamos which you… | ||
| 05-page067 | Technical assessment of a Type A Dynamo, detailing its electrical performance and manufacturing quality. | ||
| View original record | To Messrs. S. Smith & Sons. .2. EFC1/T. Contd. DYNAMO - TYPE A. The corresponding figures for the larger dynamo we find to be 500 R.P.M. for 12.4 volts (cold) and 565 R.P.M. for 13.6 volts in the hot… | ||
| 05-page068 | The concluding page of a letter discussing confidential inter-communication for mutual benefit. | ||
| View original record | Contd. -3- EFC1/T. may be made of a similar nature, as being of a confidential nature, in order that there may be no obstacle to the continuance of this inter-communication, which it is hoped will be… | ||
| 05-page069 | Letter from S. Smith & Sons regarding an Electrical Engineer's visit to discuss Commutator construction. | ||
| View original record | X 295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M·A) LTD MANUFACTURERS OF… | ||
| 05-page070 | Follow-up letter to Messrs. S. Smith & Sons regarding a previous letter and arranging an engineer's visit. | ||
| View original record | X. 295 T320*(5 lines). EPC3/T. 21st. May 1919. Messrs. S. Smith & Sons, 179-185 Great Portland Street, London, W.1. Dear Sir, Your letter CWN/LLL of the 20th inst. to hand this morning. You will now… | ||
| 05-page071 | Letter from S. Smith & Sons regarding the performance and testing of a Dynamo and Cutout. | ||
| View original record | X.295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page072 | Letter from S. Smith & Sons regarding sparking auxiliary brushes on a machine and arranging a works visit. | ||
| View original record | S. SMITH & SONS (MOTOR ACCESSORIES), LTD. 179-185, Great Portland Street, LONDON, W.1. Continuation No. Messrs. Rolls-Royce Ltd. winding which will we hope show an appreciable improvement both in… | ||
| 05-page073 | Letter from Smith & Sons about dynamo tests and arranging an interview. | ||
| View original record | To En. ) To EY. ) from EFC. c. to EY/HBO. X 295 EFC2/T21.5.19. RE SMITH DYNAMO & INSTRUMENT We attach copy of letter received this morning from Messrs. Smith & Sons. This has crossed a letter we have… | ||
| 05-page074 | Internal request to the Print Room for two prints of Smith (T & M) Dynamo tracings. | ||
| View original record | M.B. Ld. C.D'by. PD. 20-3-19-14-R14. To Print Room. from EPC. EFC1/T22.5.19 X.295 - SMITH (T & M) DYNAMO Please supply, as soon as possible, two prints of each of the accompanying tracings in… | ||
| 05-page075 | Potential meeting about the Smith Dynamo and Instrument. | ||
| View original record | To EFC. from Bn. X 295 Hn10/P24.5.19. RE SMITH DYNAMO AND INSTRUMENT. With reference to your note EFC2/T23.5.19, I think we should reply that we should be glad to see their representative on any… | ||
| 05-page076 | Letter to Messrs. Smith & Sons enclosing blueprint performance curves for two dynamo types, A and 3A. | ||
| View original record | X.295 EPC1/AT 27.5.19. Messrs. Smith & Sons, Great Portland Street, London, W.1. Dear Sirs, We are now sending you, as promised, blueprint curves in duplicate of the performance of the two dynamos,… | ||
| 05-page077 | Letter from motor accessory manufacturer S. Smith & Sons regarding blue print curves for two dynamos on test. | ||
| View original record | X.295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page078 | Request to supply a photostat copy of a sketch for a Smith (T & M) Dynamo. | ||
| View original record | To Mr. Walker from EFC. EFC2/AT17.6.19. X.295.-SMITH (T & M) DYNAMO. Will you please supply one photostat of the accompanying sketch and oblige Exptl. Dept. D.O. EFC. | ||
| 05-page079 | Request to the Print Room for photostat copies of sheets of curves for a Smith (T & M) Dynamo. | ||
| View original record | R.R. FILE COPY. NOT TO BE ISSUED OR COPIED. 206 To Print Room. from EFC. EFC6/T30.6.19. SMITH (T & M) DYNAMO Kindly supply as soon as possible, 9 photostat copies, two-thirds linear size, of the… | ||
| 05-page080 | Request to the Print Room for nine half-size photostat copies of a sheet of curves for the Smith (T & M) Dynamo. | ||
| View original record | To Print Room. From EPC. EPC5/T30.6.19. RE SMITH(T & M)DYNAMO Will you kindly supply as soon as possible, 9 photostat copies, half size, of the accompanying sheet of curves and oblige. EPC. | ||
| 05-page081 | Advantages of a new dynamo from Smiths over existing Lucas or C.A.V. models. | ||
| View original record | X.295. Extract from EFC1/T30.7.19. RE DYNAMOS. We are expecting to receive sometime soon, a dynamo from Messrs. Smiths made up on the same principle as the one they have already supplied to us, but… | ||
| 05-page082 | Explaining the theory of action of the 'Smith' constant current dynamo. | ||
| View original record | (I) X. 295 "SMITH" THEORY OF ACTION OF THE [REDACTED] CONSTANT CURRENT DYNAMO. ---ooooooooooooooooo--- The conditions at no load, when the machine is only supplying its own field current are shown in… | ||
| 05-page083 | Hand-drawn diagram of a dynamo, likely a Gramme-ring type, illustrating its electrical conditions at no load. | ||
| View original record | Conditions at the load., Fig: 1., N., Aux., Rotation, d, c, Resistance, Main, b, a, x, S, FIG. 1, Conditions at No Load. | ||
| 05-page084 | Diagram and explanation of the effects of increased speed on current and magnetic flux in an electrical dynamo or motor. | ||
| View original record | Fig. 2. W. (2) N+ Rotation M- S. FIG.2. If the speed is still further increased, there is a slight further increase in current, which will sweep the flux still further around. Considering section cd,… | ||
| 05-page085 | Page discussing the demagnetizing action of an armature and its effect on an output curve. | ||
| View original record | (3) The further the field is shifted, the more powerful does the demagnetizing action of the Armature become, so that at a certain output, the curve becomes flat and ceases to rise. | ||
| 05-page086 | Calculation to find the current distribution in an armature for minimum power loss. | ||
| View original record | To find the Current Distribution in the Armature which gives the Minimum C²R loss Let x amperes be the current delivered to the battery by the dynamo, and let z amperes be the current in the… | ||
| 05-page087 | Mathematical comparison of electrical loss between an S. Smith & Sons dynamo and an ordinary dynamo. | ||
| View original record | The loss y is to be a minimum Therefore equate dy/dz to zero ∴ 2r[2z - x] = 0 ∴ 4rz = 2rx ∴ 2z = x z = ½ x The loss is therefore a minimum when the current flowing in the resistances is half the… | ||
| 05-page088 | Letter to Smith & Sons Ltd. regarding the performance and future supply of their Type A chassis lighting dynamo. | ||
| View original record | X. 295 EPCL/AT8.8.19. 8.8.19 Messrs. Smith & Sons, Ltd., 179-185 Gt. Portland Street, London. W.1. Dear Sirs, RE CHASSIS LIGHTING DYNAMO. With reference to the correspondence which passed between us… | ||
| 05-page089 | Hand-drawn schematic showing the arrangement of poles, armature and brushes for a Smith Type A. Dynamo. | ||
| View original record | Smith Type A. Dynamo X. 295 Looking com. end + 7+ - N S M+ A- M- A+ 5° 18° 5/16" Actual amgt. of poles, armature and brushes. | ||
| 05-page090 | Letter from S. Smith & Sons (M.A) Ltd acknowledging a letter regarding a Chassis Lighting Dynamo. | ||
| View original record | X.295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page091 | Letter from S. Smith & Sons regarding a special chassis lighting dynamo. | ||
| View original record | X.295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines). Code A.B.C. 5th Edition Telegrams SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page092 | Letter from S. Smith & Sons regarding a new Dynamo, inviting Mr. Fowler Clarke to see it under test at their factory. | ||
| View original record | X. 295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF… | ||
| 05-page093 | The Smith (T & M) Type 'A' Dynamo. | ||
| View original record | To R. from EPC. c. to CJ. c. to Bn. c. to E. c. to Ey. c. to EP. c. to Da. c. to EH. x 295. THE SMITH (T & M) TYPE 'A' DYNAMO. The field carcase of the dynamo is of cast iron, of outside dimensions… | ||
| 05-page094 | Hand-drawn schematic diagram of a dynamo or motor showing poles, armature, and wiring. | ||
| View original record | U.K. 23/a (200 T) (S.D. 400. 20-4-37.) Pro. 5236/11. 1a N A+ C M+ M+7-C S A- C R M- M+7-C | ||
| 05-page095 | Description of the electrical currents and forces within a dynamo and armature system during startup. | ||
| View original record | Contd. -2- EFC1/T13.8.19. During the period between starting up and the point at which the dynamo was connected to the battery by the cut-out, a P.D. increasing with the speed, was generated between… | ||
| 05-page096 | Technical explanation of the operation of a shunt dynamo, focusing on current, auxiliary brushes, and resistance circuits. | ||
| View original record | Contd. -3- EFCL/T13.8.19. however, current begins to flow to the battery, the cross magnetising effect of the battery current in the armature drags the main flux further round in the direction of… | ||
| 05-page097 | Technical description of the action of a dynamo, focusing on brush systems and current characteristics. | ||
| View original record | Contd. -4- EFC1/T13.8.19. to these two connected pairs of brushes must therefore be reduced, and this is effected by turning the whole system of brushes back against the rotation through an angle of… | ||
| 05-page098 | The characteristics and testing procedures for the Smith type 'A' dynamo. | ||
| View original record | Contd. -5- EFC1/T13.8.19. The Smith type 'A' dynamo has aluminium end brackets carrying ball bearings for the armature, one of which carries a system of four brushes as already described and… | ||
| 05-page099 | Performance analysis of a dynamo, comparing its characteristics to other models and detailing various output curves. | ||
| View original record | Contd. -6- EFC1/113.8.19. It is a peculiarity of this machine that the open circuit voltage in the controlled condition is less than that in the plain shunt condition, which is not the case in the… | ||
| 05-page100 | Analysis and comparison of C.A.V., Lucas, and Smith lighting dynamos. | ||
| View original record | Contd. -7- (a) As a plain shunt machine (Both control brushes removed). (b) One control brush removed. (c) Correctly connected. (d) Control brushes connected to main brushes through equal resistances… | ||
| 05-page101 | Comparison between Smith and Lucas dynamos regarding circuit protection and future supply. | ||
| View original record | Contd. -8- EFC1/F13.8.19. If the field circuit is opened, all is dead on the Smith dynamo. This is not the case with the Lucas, as it excites on the control winding. Complete protection of the dynamo… | ||
| 05-page102 | Graph of open circuit voltage curves for a Smith (T&M) Type A Dynamo with separate excitation. | ||
| View original record | SMITH (T&M) TYPE A DYNAMO OPEN CIRCUIT VOLTAGE CURVES SEPARATE EXCITATION. A. VOLTS FIELD AMPERES MAIN VOLTAGE 2500 R.P.M. MAIN VOLTAGE 1500 R.P.M. VOLTAGES BETWEEN MAIN -VE AND AUXILIARY -VE BRUSHES… | ||
| 05-page103 | Graph showing the open-circuit voltage curves for a Smith (T&M) Type A Dynamo with self-excitation. | ||
| View original record | SMITH (T&M) TYPE A DYNAMO Open circuit volt curves Self Excitation (a) As plain shunt machine (c) Controlled A/A B VOLTAGE (CURVES A) VOLTAGE (CURVES B) DYNAMO SPEED (R.P.M.) (a) (c) 13.5 volts 510… | ||
| 05-page104 | Graph of output-speed curves for a Smith (T&M) Type A Dynamo with various cell configurations. | ||
| View original record | AMPERES OUTPUT 14 12 10 8 6 4 2 0 DYNAMO SPEED (R.P.M.) 0 200 400 600 800 1000 1200 1400 1600 C. SMITH (T&M) TYPE A DYNAMO As plain shunt wound machine Output - Speed Curves to 4, 5, 6 and 7 fully… | ||
| 05-page105 | Graph showing the output, field, and control current curves for a Smith Type A Dynamo with varying numbers of cells. | ||
| View original record | SMITH (T&M) TYPE A DYNAMO Curves of Output, Field and Control Currents when supplying 4, 5, 6 and 7 fully charged large capacity cells in series S.S. Co. LTD. Markings in amperes MAIN CURRENT AMPS… | ||
| 05-page106 | Data table and diagram showing the currents for a Smith (T & M) Type 'A' Dynamo. | ||
| View original record | SMITH (T & M) TYPE 'A.' DYNAMO. TABLE OF CURRENTS. Speed. Main current. (M). Field current (F). Control current (C) control brush current. Main brush current (M+F-C). 580 0 2.8 -1.4 4.2 750 5.65 3.0… | ||
| 05-page107 | Analysis of results of tests of lighting dynamos. | ||
| View original record | R.E.NO.380(c)/A.E.D. 24-1105/G.135 1. 1.7.19. ANALYSIS OF RESULTS OF TESTS OF LIGHTING DYNAMOS. A. Open Circuit Separate Excitation. Main Volts. Ex. Curr. C.A.V. Lucas Smith N.C.E.R. E.575 Type A. 1… | ||
| 05-page108 | Comparison of amperage output for different electrical components under shunt wound and normal conditions. | ||
| View original record | -5- C. Shunt Wound OutPUT. Amperes. Speed. C.A.V. N.C.R.R. Lucas E.575 Smith Type A. 600 -- -- 2.3 700 1.7 -- 4.6 800 4.3 1.5 6.8 900 6.55 3.8 9.1 1000 8.95 5.7 11.3 1200 12.7 9.7 14.8 1400 15.15 13.4… | ||
| 05-page109 | Request to the Print Room for eight photostat copies of a sheet of curves. | ||
| View original record | W.M. 263. A. (200. b.) J.R.V. CO. 24-9-18. 12. 757A To Print Room. From E.P.C. E.P.C.1/ /14.8.19. RE SMITH (T & M) DYNAMO X 293 Kindly supply, as soon as possible, 8 photostats two-thirds linear size,… | ||
| 05-page110 | Sending one 'Smith Cut-Out' to Mr. Royce for his inspection. | ||
| View original record | To Shipping Office from EFC. c. to Dispatch Stores. EFC3/AT18.8.19. X.285.-SMITH CUT-OUT. We are sending into the Stores one Smith cut-Out will the Shipping Office kindly give instructions for this to… | ||
| 05-page111 | Letter to Messrs. Smith & Sons regarding a visit to see a new chassis lighting dynamo on test. | ||
| View original record | X 295 EWCS/AT. 20.5.19. Messrs. Smith & Sons, Gt. Portland St., London. W.1. Dear Sirs, RE CHASSIS LIGHTING DYNAMO. Many thanks for your letters HRB/LLL of the 11th and 13th inst. The undersigned will… | ||
| 05-page112 | Report on the Smith (T & M) Type 'A' Dynamo and suggesting further testing protocols. | ||
| View original record | To EFC. from R c. to CJ. c. to BN. c. to EH. c. to EFC. X 295 RE SMITH (T & M) TYPE "A" DYNAMO X.295. X 3922 I thank you very much for your report (EFC1/T13.8.19) on the Smith Dynamo. From the… | ||
| 05-page113 | Comparison of Smith (T & M) and Lucas Type 'A' dynamos. | ||
| View original record | To R. from EPC. c. to CJ. c. to E. c. to En. EPC3/T27.8.19. X 295 RE SMITH ( T & M) TYPE 'A' DYNAMO. In answer to your note R2/G19.8.19, we will experiment, when time permits, on the comparison of the… | ||
| 05-page114 | Letter from S. Smith & Sons about deferring a visit regarding Armoured Car Speedometers. | ||
| View original record | X.295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF… | ||
| 05-page115 | Letter to S. Smith & Sons Ltd. regarding noise issues with the chassis lighting dynamo. | ||
| View original record | X. 295. EFC3/T. 30th August 1919. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, X 3014 X 295 CHASSIS LIGHTING DYNAMO. Thank you for your letter of the 27th inst.… | ||
| 05-page116 | Letter to Messrs. S. Smith & Sons Ltd. arranging a visit concerning a Chassis Lighting Dynamo. | ||
| View original record | 1320. 6 lines. X 295 EFC1/T. 3rd. September, 1919. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, Re Chassis Lighting Dynamo. We are in receipt of yours of the… | ||
| 05-page117 | Letter from S. Smith & Sons concerning a shipment and order for a spark plug, horn, Klaxons, and lighting sets. | ||
| View original record | X 295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page118 | Correspondence from S. Smith & Sons regarding the postponement of a visit to inspect a Chassis Lighting Dynamo. | ||
| View original record | x.275 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams SPEEDOMET, TELEW, LONDON S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page119 | Letter from S. Smith & Sons offering to design a special instrument facia set for the Olympia Show. | ||
| View original record | S. SMITH & SONS (MOTOR ACCESSORIES), LTD., 179-185, Great Portland Street, LONDON, W.1. Continuation No. P.S. Whilst writing you, might we enquire as to your Olympia Show fittings. May we offer to… | ||
| 05-page120 | Return of a clock from Messrs. Smith & Sons, comparing it unfavourably to one from Messrs. Elliott. | ||
| View original record | To EY. From EH. X 295 9th. Sept. 1919. EH/LCS.9.19. RE. CLOCK FROM MESSRS. SMITH & SONS. We do not consider this clock is as good as the one supplied by Messrs. Elliott. We see no real advantage in… | ||
| 05-page121 | Telegram to Fowler Clarke at Roycar Derby regarding an inconvenient visit and that a letter will follow. | ||
| View original record | POST OFFICE TELEGRAPHS This Form must accompany any inquiry respecting this Telegram. C. or B. Charges to pay Recd. from By Prefix Handed in at: 2-11 M No. of Telegram: 0427 Sent To By Stamp: DERBY C.… | ||
| 05-page122 | Letter to S. Smith & Sons Ltd. arranging a meeting to view a new chassis lighting dynamo. | ||
| View original record | X.295 EFCS/T. 11th Sept. 1919. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1 Dear Sirs, RE CHASSIS LIGHTING DYNAMO. Would it be convenient for the undersigned to call upon… | ||
| 05-page123 | Letter from S. Smith & Sons arranging a meeting to discuss a Chassis Lighting Dynamo. | ||
| View original record | X 295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page124 | Letter from S. Smith & Sons confirming an appointment for Mr. Fowler-Clark. | ||
| View original record | X-295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code. ABC 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page125 | Extract from a memo regarding electrical parts, specifically distribution boards and dynamos for a 10,000-mile test. | ||
| View original record | E.R.W. OFFICE MEMORANDUM X.295 Extract from EPC7/T25.919. RE ELECTRICAL PARTS FOR 10,000 MILE TEST (2) X.3555. R.R. Distribution Board with Lucas cutout. This has been fully instructed by Mr. Day.… | ||
| 05-page126 | Visit to Smiths, Motor Accessories, regarding their dynamo production and quality methods. | ||
| View original record | To R. from EFC. c. to CJ. c. to E. c. to Bn. c. to Da. c. to EH. c. to EM. X.295 EFC5/T26.9.19. X. 295 - RE SMITH DYNAMOS On Monday last, the 22nd. inst, we paid a visit to Messrs. Smiths, Motor… | ||
| 05-page127 | The quality and production of dynamos and lighting sets, with notes on die-cast parts and a finished armature. | ||
| View original record | To R. contd. -2- EFC5/T26.9.19. really good quality lighting sets and they are out to capture this field and make a name for themselves in this direction. They have quantities of the smaller type… | ||
| 05-page128 | Dynamo production, material composition, and proposed vehicle testing. | ||
| View original record | Contd. -3- EFC5/T26.9.19. They reckon that these machines can be in production in two month's time sufficient to meet both our demands, if we standardise these, and those of other firms. X-Shorty. We… | ||
| 05-page129 | Table comparing armature winding specifications for various dynamos. | ||
| View original record | X.295 TABLE OF ARMATURE WINDINGS (DYNAMOS) 29.9.19. Machine | C.A.V.H.G.R.R. | Lucas E.575. | Smith(T & M) A. | Bijur. | Liberty. | R.R. 20 HP. | Lucas A.400. | Smith T & M 2A-2 Number of poles (even)… | ||
| 05-page130 | Table of specifications for armature windings in dynamos. | ||
| View original record | -2- TABLE OF ARMATURE WINDINGS( DYNAMOS) Contd. Machine. C.A.V.N.G.R.R. Lucas E.575. Smith T & M.A. Bijur. Liberty. R.R.20 HP. Lucas A.S.G. Smith A & B 3A Armature dimensions. 3⅛" x 2¼" 3.575"x2.600"… | ||
| 05-page131 | Modifications and testing of distributor and dynamo components. | ||
| View original record | X.295 Contd. -2- EFC1/T29.9.19. instructing at the same time. Coil, Condenser & Distributor. In the case of these, we do not propose any modification beyond the fitting of a distributor rotor with a… | ||
| 05-page132 | From 'E' relaying Mr. Royce's instruction to stick with Lucas dynamos and not source from Smith or others. | ||
| View original record | R.R. D/A.(per) C. J. an'd pub'd 6 pce To EFC. from E. Copy to CJ. " " BN. " " DA. " " EH. E1/G14.10.19. RE "SMITH" DYNAMO. X.295. Mr. Royce wishes me to tell you that he thinks we have so much… | ||
| 05-page133 | Letter to S. Smith & Sons Ltd. requesting drawings for a chassis lighting dynamo for a 10,000-mile test. | ||
| View original record | X 95 X 304 Y EFC1/T. 14th October, 1919. Messrs. S. Smith & Sons, Ltd., 179-185 Great Portland Street, London. W.1. Dear Sirs, RE CHASSIS LIGHTING DYNAMO. We have been expecting to hear from you re-… | ||
| 05-page134 | Letter from S. Smith & Sons regarding the supply and specifications of a Chassis Lighting Dynamo. | ||
| View original record | X.295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 Lines) Code A.B.C. 5TH Edition Telegrams SPEEDOMET, TELEW, LONDON S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page135 | Continued experimentation with Smith dynamos versus using a Lucas dynamo for a 10,000-mile test. | ||
| View original record | To R. from EPC. c. to CJ. c. to E. c. to EH. c. to En. c. to Da. S X.295. EFC4/T22.10.19. X.295 - RE SMITH DYNAMO. 23 Oct With reference to Mr. Elliott's note E1/G14.10.19, we assume that it would be… | ||
| 05-page136 | Correspondence with Messrs. Smith & Sons Ltd. regarding a lighting dynamo sample and drawings. | ||
| View original record | V 2/75 1320. 6 lines. EPC4/T. 22nd. October, 1919. Messrs. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, Re Lighting Dynamo. Many thanks for your letter of the 15th inst.,… | ||
| 05-page137 | Letter from S. Smith & Sons acknowledging receipt of a favour and confirming the despatch of a sample Lighting Dynamo. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page138 | Requesting a scheme for fitting a Smith dynamo to the 10,000-mile test car as a potential replacement for the Lucas dynamo. | ||
| View original record | To Da. from EPC. c. to Rn. c. to EH. X.295 EPC1/T22.11.19. X.3647 X.295. DYNAMO FOR 10,000 MILE TEST CAR We attach a blue print giving the outside dimensions of the Smith dynamo. Will you kindly get… | ||
| 05-page139 | Letter to S. Smith & Sons inquiring about the progress of a special sample lighting dynamo. | ||
| View original record | X 295 -------- 1320. 6 lines. EFC1/T. 26th November,1919. X Body Messrs. S. Smith & Sons, 179-185 Great Portland Street, London, W.1. Dear Sirs, With reference to the special sample lighting dynamo… | ||
| 05-page140 | Letter acknowledging a previous favour and advising that the question of the sample lighting dynamo is being taken up with their Electrical Engineer. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON S. SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page141 | Letter from S. Smith & Sons regarding a sample Model MP Dynamo being sent for inspection. | ||
| View original record | X.2952 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams SPEEDOMET TELEW. LONDON. S. SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page142 | Notification of the receipt of a second, improved Smith dynamo. | ||
| View original record | RR.2M-3/16 (SF 112, s.1) (L) MP 18360 X 275. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark. Order No: Customer's No.: We have received from the stores a Smith dynamo. This is the second Smith dynamo… | ||
| 05-page143 | Follow-up letter from S. Smith & Sons regarding a sample dynamo and offering engineering assistance for testing. | ||
| View original record | A-395'h CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines). Code A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page144 | Requesting the disassembly of an improved Smith dynamo for examination. | ||
| View original record | X 2984 To RHC. from Ck. Ck1/T10.1.19. X.295b - IMPROVED SMITH DYNAMO. Will you kindly have the above dynamo, which Mr. Fumer will hand to you, disassembled for examination, and oblige. Ck. | ||
| 05-page145 | Letter to S. Smith & Sons, Ltd. regarding delays in testing their new chassis lighting dynamo. | ||
| View original record | x 2956. 1320. 6 lines. CK3/T. /3LHY 10th January, 1920. Messrs. S. Smith & Sons, Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, Re Chassis Lighting Dynamo. Your letter of the 6th inst.… | ||
| 05-page146 | Letter from S. Smith & Sons regarding a sample Dynamo for a 10,000-mile test car and offering other dashboard instruments. | ||
| View original record | X 2956 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page147 | Specification sheet detailing the particulars of two types of 12-volt chassis dynamos. | ||
| View original record | X.295 14.1.20. X.295 - PARTICULARS OF SMITH (T & M) 12 VOLT CHASSIS DYNAMOS. Type A. Type 2D. Carcase. Material I. Wt. I Wt or S.M. Length 6.75 6.75 Diameter 5.69 5.80 Thickness .375 .400 Armature.… | ||
| 05-page148 | Instructions comparing a Type 2D Smith Dynamo to a Type A machine, noting differences in brush material. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark Order No: X.295. Customer's No: 19 Smith Dynamo (Type 2D) The dimensions of this dynamo are the same as the type A dynamo but we have already made some… | ||
| 05-page149 | Instructions to improve a component by using thicker insulation to prevent leakage from copper dust. | ||
| View original record | B.B. 238 (1M. Pads.) Per 152. 6.33. DE J.P&F. 197828 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. 19 type 4, which as you no doubt remember was a very poor job. It seems that this… | ||
| 05-page150 | Badly fitted brush gear and plate on a Type 2D post, noting distortion from a hard blow. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. III To Order No. Customer's No. On the Type 2D post received by us the brush gear and plate has been very badly fitted & has had a very hard blow, as distortion in… | ||
| 05-page151 | Confirming the return of Smith's recorders to their makers after being sent for approval. | ||
| View original record | WAB. from EH. X 295. EH/AT1/S6.2.20. In reply to your WAB/RG3/ML.28.1.20, re Smith's recorder sent to Mr. Royce for approval. These have been returned to the makers. EH. | ||
| 05-page152 | Instructions diagnosing a mechanical noise fault in a Smith Dynamo Type 2D when hot. | ||
| View original record | R.R.236 (500 Bks.) (S.F. 193. 6. 13.) M.P. [11281] 152 X.295 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark 13/2/22 Order No: X.295. Customer's No: --- Smith Dynamo Type 2D We have run this dynamo on… | ||
| 05-page153 | Instructions regarding the battery and a comparison of dynamo noise levels. | ||
| View original record | R.R. 250 (100 Sets) (MP 152 4. 11. 13.) M.P. 152/101 153 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No. Customer's No. By switching off the current-charging the battery we are now running the… | ||
| 05-page154 | Letter from Smiths Publicity Service regarding a delayed dispatch of a motor accessories catalogue. | ||
| View original record | Telegrams: SPEEDOMET TELEW LONDON Telephone: MAYFAIR 6350 (6 lines) SMITHS PUBLICITY SERVICE LTD. DEVON HOUSE 173-175 GREAT PORTLAND STREET LONDON W1 Directors: Walter Dandie Charles F. Bennett WD/CH.… | ||
| 05-page155 | Letter from supplier S. Smith & Sons enquiring about the results of tests on a dynamo. | ||
| View original record | Mr Clarke Y 295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines.) Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M·A) LTD… | ||
| 05-page156 | Letter to S. Smith & Sons Ltd. detailing faults and feedback on a new dynamo. | ||
| View original record | X.295 CK3/T. 26th February, 1920. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, X.295. HE DYNAMO. X 1402 In answer to your letter CM1/LLL of the 25th inst., we… | ||
| 05-page157 | Continued letter discussing issues with electrical connections, insulating materials, and delayed dynamo tests. | ||
| View original record | R.R. .1354. CK/3/T. 24.10.23. 50. (5359) Contd. -2- CK/3/T. Further, we note that you rely for some electrical connections upon insulating material of the type which may shrink under certain… | ||
| 05-page158 | Proposal to trial the Smith machine as a potential replacement for the underperforming Lucas model. | ||
| View original record | X 295. Extract from R3/G1.3.20. X.2941- RE DYNAMO ON CURRENT CARS. X.3770. X.3014. X.1915. X.295. As regards the Smith machine, I think it would be quite worth/getting a number of these, since the… | ||
| 05-page159 | Need for a decision regarding the dynamo for chassis built after number 1000. | ||
| View original record | X.295 To En. From By. ---------------- EYS/P2.-3.20. x.2565 - CHASSIS PARTS WHICH ARE HELD UP AFTER CHASSIS 1000. I have gone carefully through the whole position again and find that the parts we… | ||
| 05-page160 | The methodology for observing 'balancing speeds' for Lucas and Smith chassis lighting dynamos. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn. c. to Wor. c. to PN. c. to Dad c. to Hs. c. to Hy. X.295. CK2/T4.3.20. X.3014 - LUCAS E.575 TYPE CHASSIS DYNAMO. X.295. - SMITH (T & M) TYPE A & 2D DYNAMOS.… | ||
| 05-page161 | Continued report on dynamo heating tests, comparing temperature measurement methods and analyzing cut-in speeds. | ||
| View original record | -2- CK2/T4.3.20. To R. contd. the bulbof which is immersed in a little copper oil bath on a copper saddle fitting over the dynamo carcase, and these do not represent anything like the inside… | ||
| 05-page162 | The performance and testing of Smith type A and 2D dynamos. | ||
| View original record | Contd. -3- CK2/T4.3.20. For the Smith type A dynamo, these figures will be seen to be about 500 R.P.M. for the cold condition and 585 R.P.M. for the hot condition. We have, however, now received a… | ||
| 05-page163 | The experimental investigation and comparison of Lucas and Smith dynamos. | ||
| View original record | S.R. No. 00 T.P. No. 49 L.S. No. 000 To R. contd. -4- CK2/T4.3.20. Lucas (cold) 11.5 miles per hour. Lucas (hot) 13.9 " " " Smith type A. (cold) 9.6 " " " Smith " A. (hot) 11.2 " " " } Assuming the "… | ||
| 05-page164 | Acquiring a machine from the Smith Company for inspection and evaluation. | ||
| View original record | Contd.. -5- CK2/T4. 3. 20. while ago we pointed out to the Smith Company that this was one of the things we were particularly up against on our present standard machine. Now that you have suggested… | ||
| 05-page165 | Observations of cutting-in speeds for Smith (T & M) chassis lighting dynamos. | ||
| View original record | X-295 4.3.20. X. 294. OBSERVATIONS of CUTTING IN SPEEDS of CHASSIS LIGHTING DYNAMOS. II SMITH (T & M) DYNAMOS. X. 295. Date. | Dynamo Type. | Temperature. | Speed R.P.M. | E.M.F. Volts. | Remarks.… | ||
| 05-page166 | Letter to S. Smith & Sons, Ltd. concerning test results and issues with a sample Chassis Lighting Dynamo. | ||
| View original record | X 295 c. Bn. By Da. Hs. Wd. CK3/T. Messrs. S. Smith & Sons, Ltd., 179-185 Great Portland St., London, W.1. 4th March 1920. Dear Sirs, Re Chassis Lighting Dynamo. Further to our letter of 26th Feb. we… | ||
| 05-page167 | Letter from S. Smith & Sons regarding outstanding account items from a previous proforma invoice. | ||
| View original record | X-295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page168 | Comparing the output speed curves of Lucas E.575 and Smith (T & M) Type A dynamos. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Wor. c. to Bn. c. to By. c. to Ds. c. to EP. c. to PN. c. to Hs. X.3014 - LUCAS E.575 DYNAMO. X.295. - SMITH (T & M) TYPE A DYNAMO. Further to our Ck2/T4.3.20,… | ||
| 05-page169 | Test results and performance curves for the Smith (T & M) Type A Dynamo. | ||
| View original record | X 295 To R. from Ck. c. to CJ. c. to E. c. to By. c. to Bm. c. to EP. c. to Dal c. to Hs. CK6/T5.3.20. X.295 - SMITH (T & M) TYPE A DYNAMO Further to our EFC1/T13.8.19, we now attach a sheet of curves… | ||
| 05-page170 | Page 2 of a document discussing the effect of using half control and inserting resistances in control circuits. | ||
| View original record | contd. -2- CK6/TS.3.20. only, and at a comparatively early point. On the present curves the effect of using only half the control is shown, but this was not carried beyond 15 amperes owing to this… | ||
| 05-page171 | Graph of output-speed curves comparing a Smith (Type A) dynamo against other models. | ||
| View original record | E. General Motors Current Smith Output Smith Central Current N.E. Current for correctly connected Smith Current OUTPUT-SPEED CURVES SMITH (Type A) DYNAMO as corrected with Exide 'S.H.J' Type Battery… | ||
| 05-page172 | Forwarding reports, tables, and curves regarding the Smith (T & M) Type A Dynamo. | ||
| View original record | To PN. from Ck. X 295- CK7/T5.3.20. X.295 - SMITH (T & M) TYPE A DYNAMO. We attach for your information copies of our reports EFC4/T12.5.19 and EFC1/T13.8.19. and CK6/T 5320 with the necessary tables… | ||
| 05-page173 | Internal memorandum arranging a meeting with representatives from Messrs. Smith to discuss their dynamos. | ||
| View original record | X.295 To Bm. from Ck. c. to Da. c. to Hs. c. to Wd. Ck3/T8.3.20. X.295 - SMITH DYNAMOS. Will you kindly note that I have arranged with Messrs. Smith that two of their representatives, namely, Mr.… | ||
| 05-page174 | Introductory page explaining the principles of the Smith Constant Current Dynamo. | ||
| View original record | X 275 THE SMITH CONSTANT CURRENT DYNAMO. INTRODUCTION. When a dynamo is to be used in conjunction with a storage battery or accumulator to provide electrical energy for the Lighting, Starting and… | ||
| 05-page175 | Diagram illustrating the workings of The Smith Constant Current Dynamo. | ||
| View original record | THE SMITH CONSTANT CURRENT DYNAMO. S' R' B B LINE + LINE - A R S A' FIG. 1. Page 2 | ||
| 05-page176 | Description of the Smith Constant Current Dynamo's operation, connections, current curves and regulation. | ||
| View original record | THE SMITH CONSTANT CURRENT DYNAMO. connected to the auxiliary brushes half a pole pitch in advance through suitable resistances. Fig. 1. shows diagrammatically the general arrangement and connections… | ||
| 05-page177 | Performance graph for The Smith Constant Current Dynamo, plotting Amperes against Revolutions Per Minute. | ||
| View original record | THE SMITH CONSTANT CURRENT DYNAMO. Fig. 2. A - Curve showing Current to Line B - Curve showing Current between a Main and an Auxiliary Brush C - Speed at which dynamo starts to supply Current to the… | ||
| 05-page178 | Technical explanation of the Smith Constant Current Dynamo, detailing magnetic fields and armature reactions. | ||
| View original record | THE SMITH CONSTANT CURRENT DYNAMO. This tends to distort the main magnetic field by sweeping it in the direction of rotation of the armature, and thus crowding the magnetism into one side of the pole… | ||
| 05-page179 | Page with four diagrams illustrating the principles of the Smith Constant Current Dynamo. | ||
| View original record | THE SMITH CONSTANT CURRENT DYNAMO. N. S. M+ M- a b c d 4. FIG. 3. N. S. M+ M- a b c d 1.15 3.45 2.3. FIG. 4. N. S. M+ M- a b c d 2.5 5. FIG. 5. N. S. M+ M- a b c d 5 10. FIG. 6. Page 8 | ||
| 05-page180 | Page describing the operation and advantages of the Smith Constant Current Variable Speed Dynamo. | ||
| View original record | Page 8 THE SMITH CONSTANT CURRENT DYNAMO. still remain equally spaced they occupy different positions with regard to the poles. This causes the effect of the armature reaction on the magnetic field to… | ||
| 05-page181 | Explanation of the Smith Constant Current Dynamo, focusing on armature reaction and output adjustment. | ||
| View original record | Page 7 THE SMITH CONSTANT CURRENT DYNAMO. the effect of armature reaction is one of "magnetisation" and distortion." The field poles are thus being strengthened by the armature reaction. Fig. 4 shows… | ||
| 05-page182 | Instruction sheet with test results for a Smiths Dynamo (Type 2D) under cold conditions, showing speed, amps, and volts. | ||
| View original record | RR. 238 (100 bks.) SF 152. 4-11-18. J MP (1703) X.295. 162 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: McClurk. I 4/2/20 12 Order-No: X 295 Customer's No. ___ Smiths Dynamo (Type 2D)(O) Normal Conditions… | ||
| 05-page183 | Instruction sheet with handwritten numerical data recorded in columns. | ||
| View original record | RR.238.(100 Pads) S.P. 152. 4. 11. 18. M/P 19744 163 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No. Customer's No. [Column 1] Spts N [Header - Illegible] 1025 1545 1770 202- 2140 2325 2550 2790… | ||
| 05-page184 | Instruction sheet with test results for a Smith 2 D.O.D. Dynamo, showing amperage at various speeds. | ||
| View original record | RR. 238 (2M) B&S 112 4-11-18 JMP 18784 117 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: H. C. Clerk 16/2/20 H Order No. X Customer's No. -- Smith 2 D.O.D Dynamo Correctly Corrected Numerically H.C. Speed |… | ||
| 05-page185 | Instruction sheet designated 'II', containing a two-column list of handwritten numerical data. | ||
| View original record | R.R.231-5M Bks./(SP 192/4 51-18) MP IN/3M 168 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No Customer's No. 1420 12.4 1470 12.35 1555 12.1 1660 11.85 1790 11.45 1950 11.2 2120 10.9 2280 10.7… | ||
| 05-page186 | Letter from S. Smith & Sons regarding modifications for a Revolver Charge on a Tudor Chassis. | ||
| View original record | X.295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M·A) Lᴛᴅ MANUFACTURERS OF… | ||
| 05-page187 | Letter discussing the selection, testing, and expedited delivery of special dynamos and apparatus. | ||
| View original record | (B). to specially select this apparatus for your use, and also to put them through a special test to adjust them exactly to what you require. We are pushing through the special Dynamos with the utmost… | ||
| 05-page188 | Visit from suppliers regarding the production and supply of Smith (T & M) Types A & 2D dynamos. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn c. to PNJ c. to Da. c. to By c. to HS. c. to EP. X.295 CK1/T13.3.20. X.295 - SMITH (T & M) TYPES A & 2D DYNAMOS. X.3771 We received a visit on Wednesday… | ||
| 05-page189 | Dynamo improvements, including armature design, insulating materials, and performance curves. | ||
| View original record | Contd. -2- (1) The provision of an armature with skewed slots and any other little alterations to pole pieces, etc., which they consider would reduce the magnetic humming noise of the dynamo to a… | ||
| 05-page190 | Dynamo performance, battery charging characteristics, and proposed specifications. | ||
| View original record | Contd. -3- CK1/T13.3.20. It is argued that high dynamo speeds are mostly obtained during running in the open country and in circumstances in which the battery gets sufficient charging in any case, so… | ||
| 05-page191 | The operating voltage of cut-outs, temperature coefficients, and contact point materials. | ||
| View original record | To R. contd. -4- Ckl/T13.3.20. conjunction with their respective cut-outs, and in both cold and fully hot conditions. So far as we have gone at present, it would appear that the changing operating… | ||
| 05-page192 | Alternative switchbox and cutout configurations following the potential adoption of the Smith dynamo. | ||
| View original record | Contd. X.3449 X.8090 X.6618 X.3938 4.5.38 -5- Ck1/T13.3.20. If we consider the adoption of the Smith dynamo as standard, we shall have to face the question as to what we are going to do about the… | ||
| 05-page193 | Comparison of Smith dynamos with Smith cut-outs versus Lucas dynamos with Lucas cut-outs. | ||
| View original record | To R. from Ck. c. to CJ. c. to E. c. to Bn. c. to PN. c. to De. c. to Hy. c. to SP. c. to He. COMPARISON OF SMITH DYNAMOS OPERATING WITH SMITH CUT-OUTS WITH LUCAS DYNAMOS OPERATING WITH LUCAS… | ||
| 05-page194 | Testing procedures and results for electrical cut-outs, comparing different models and analysing operational phenomena. | ||
| View original record | Contd. -2- CK2/T16.3.20. (3) The speed was then allowed to fall until the cut-out just broke contact, at which instant the voltage, speed and reverse amperes through the series coil were noted. (4)… | ||
| 05-page195 | Report page detailing the operating voltages of Lucas and Smith electrical cut-outs under various test conditions. | ||
| View original record | Contd. -3- Ck2/T16.3.20. but otherwise steady voltage, that the points at which the cut-outs operate on such a voltage are rather indefinite, particularly in the case of the Lucas cut-out which we… | ||
| 05-page196 | Voltage tests on Lucas and Smith cut-outs under various conditions. | ||
| View original record | Contd. -4- CK2/T16.3.20. Voltage to operate cut-outs. | | on Battery test. | On dynamo test. | |-----------|----------------------------|-----------------| | | Cold. | Hot. | Cold. | Hot. |… | ||
| 05-page197 | Performance data table for Lucas dynamos and cut-outs, showing speed, voltage, and amperage under cold and hot conditions. | ||
| View original record | Contd. -5- CK2/T16.3.20. approximate dynamo balancing speed corresponding to the battery E.M.F. specified, for the quite cold or fully hot condition as the case may be. These speeds are to be taken in… | ||
| 05-page198 | Test results for a Smith Lyne A dynamo with an Old Smith cut-out and a Smith type 2D dynamo with a New Smith cut-out. | ||
| View original record | Contd -6- CK2/T16.3.20. Dynamo:- Smith Lyne A. Cut-out:- Old Smith. Condition. | Volts. | Amperes. | Speed. | Corresponding approx. dynamo balancing speed. Cold. 1. | 12.5 | -- 2. | 12.6 | +.1 3. |… | ||
| 05-page199 | Test results and analysis for a Lucas E.5754 No.402 Dynamo and a New Exol. S.E. cut-out. | ||
| View original record | Contd. -7- Cx2/T16.3.30. Dynamo:- Lucas E.5754 No.402. Cut-out:- New Exol. S.E. with main fuse. Condition. Volts. Amperes. Speed. Corresponding approx. dynamo balancing speed. 1. 18.5 -- Cold. 2. 13.0… | ||
| 05-page200 | Comparison and analysis of Smith versus Lucas electrical cut-outs, including a teardown of a Lucas unit. | ||
| View original record | Contd. -8- CK2/T16.3.20. with the dynamo balancing speed, which is of course accentuated in the case of Lucas C. On the other hand, in the case of the Smith combinations, this delay is nowhere near so… | ||
| 05-page201 | Continued report on the behaviour of a shunt winding electrical system. | ||
| View original record | Contd. -9- Ck2/T16.3.20. shunt winding is all copper it looks as if, when in the fully hold condition, a slight reverse current at the instant of cutting in is right in order that, when fully hot, the… | ||
| 05-page202 | Volt-speed characteristic (Open Circuit) test results for a 'Smud Type A' Dynamo under cold conditions. | ||
| View original record | R.R.239 (spl) R.c.7/57 (12 x 12.) IMP 19746 X 295a 172 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr. Clark 11/2/30 * Order No: X Customer's No: - Smud Type A. Dynamo Volt-speed Characteristic (O.C.)… | ||
| 05-page203 | Instruction sheet detailing the cold volt-speed characteristics for a Smith Type 2D(O) Dynamo. | ||
| View original record | X.295 173. ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Clark. 19/3/20 19 Order No. X.295 Customer's No. -- Smith Type 2D(O) Dynamo - Volt-speed characteristic (O.C.) Cold. Speed | Volts 390 | 10.75 420 |… | ||
| 05-page204 | Testing and standardization status of a starter motor, ignition coil, and dynamo. | ||
| View original record | X.295 Extract from EFC4/AT30.3.29. X.2565. RE PARTS WHICH ARE HELD UP AFTER CHASSIS 1000. (1) Section 7220. X.3082. X.2656. Starter Motor. Experimental C.M.3. Morganite brushes together with N.1760… | ||
| 05-page205 | Letter to S. Smith & Sons Ltd. following up on the dispatch of a standard Chassis Dynamo. | ||
| View original record | RR 251. 100 T. O/P 20. 2.19. X.295. EFCB/T. 31st. March 1920. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, [Handwritten: COPY] Re Chassis Dynamo. In the first… | ||
| 05-page206 | Letter from S. Smith & Sons regarding a Model 29 Dynamo and experimental armatures. | ||
| View original record | X.295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 Lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page207 | Letter from S. Smith & Sons (Motor Accessories), Ltd. to Messrs. Rolls-Royce Ltd. | ||
| View original record | S. SMITH & SONS (MOTOR ACCESSORIES), LTD., 179-185, Great Portland Street, LONDON, W.1. Construction No. Messrs. Rolls-Royce Ltd. April 1st 1920 few days. Assuring you of our best attention at all… | ||
| 05-page208 | The evaluation and procurement of Smith dynamos and cut-outs. | ||
| View original record | To Wd. From EFO. EFC1/AT.4.20. X-295 X.295.-SMITH DYNAMOS. In the first instance we received from Messrs.Smith two sample dynamos and cut-out, head and side lamps, sample accumulator and combined… | ||
| 05-page209 | Obtaining road experience, inspection by Mr. Royce, and the conditions for experimental tests. | ||
| View original record | -2- EFC1/AT.420.Contd. Mr. Northey to obtain road experience on this, another one to be submitted to Mr. Royce for inspection or to have bench tests made upon it. We agree with you that it is very… | ||
| 05-page210 | Follow-up memo requesting the continuation of work on a scheme to fix a Smith dynamo to the chassis. | ||
| View original record | To Da. from EFC. c. to Hs. X.295. EFC6/f7.4.20. X.295 - SMITH DYNAMO. We sent you under cover of our EFCL/T22.11.19 a print giving the outside dimensions of the Smith dynamo asking you to get out a… | ||
| 05-page211 | Letter to Smith & Sons Ltd. regarding an order for two special chassis lighting dynamos for prolonged testing. | ||
| View original record | X-295 C. Ltd. C. Bov. C. Pra. EFC3/AT7. 7.4.20. Messrs. Smith & Sons Ltd., 179-185 Great Portland Street, London. W.1. Dear Sirs, X-295 RE CHASSIS LIGHTING DYNAMO. Many thanks for your letter of the… | ||
| 05-page212 | Page 2 of a letter confirming a payment has been made and expressing a wish to keep an item. | ||
| View original record | -2- EFC3/AW7420. Contd. have already paid you for and we have reasons for wishing to keep this. Yours faithfully, | ||
| 05-page213 | Modifications to the R.R. distribution board for use with a Smith dynamo. | ||
| View original record | X 295. To R. from EFG. c. to GJ. c. to E. c. to En. c. to Da. c. to Hs. EFC2/T8.4.20. X.3555 - R.R. DISTRIBUTION BOARD. X 3760 X.295 - SMITH DYNAMO. The suggested modifications to the R.R.… | ||
| 05-page214 | Page 2 of a memorandum discussing the use of a three-point switch for a Smith machine with an existing switchboard. | ||
| View original record | -2- Contd. X.3y60 It will also be noticed that the charging switch need only be a three-point switch for the Smith machine but that the R.R. switchboard as already instructed could of course be used… | ||
| 05-page215 | Letter from S. Smith & Sons acknowledging receipt of a communication regarding a chassis lighting dynamo. | ||
| View original record | X.295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF… | ||
| 05-page216 | The receipt of a Smith dynamo for testing. | ||
| View original record | EFC. ---- X.295. 5 (2) 11.4.20. X.295. SMITH DYNAMOS. -------------------- We have received from the stores 1 Smith dynamo type 2D for test. (This is the 2nd. type 2D machine). viz. 2D (1). L.F. | ||
| 05-page217 | Manufacture of a new switchboard for a Smith dynamo. | ||
| View original record | X 295. To RFC. from R. c. to CJ. c. to Bn. c. to Wor. R1/G12.4.20. X.3975 - X.3977.SP. RE DYNAMO AND SWITCHBOARD X.295. X.1815. Do as you suggest about the switchboard for Smith dynamo. Use any cutout… | ||
| 05-page218 | The air gap for the Smith 2D dynamo. | ||
| View original record | X.095 16.4.20 Mr. Clark. --------- X.295. - SMITH DYNAMO. ---------- The air gap of the smith 2D dynamo was included in the list of "Air Gaps of Dynamos", dated 23/3/20, being .015". LF. | ||
| 05-page219 | Letter to Messrs. S. Smith & Sons, Ltd. requesting a replacement blueprint for a dynamo Type 2D which has been mislaid. | ||
| View original record | X-295 EPC1/AT19.4.20. Messrs. S. Smith & Sons, Ltd., 179-185, Great Portland Street, London, W.1. Dear Sirs, V-295 HE CHASSIS LIGHTING DYNAMO. We regret to say that the blueprint you kindly sent us a… | ||
| 05-page220 | Requesting a replacement outline for a Smith Dynamo that could not be found. | ||
| View original record | R.R. 222-(50 T) S-G 30s. L-100 G 2285. X.295 DA/Th/IF19. 4. 20. To HFC. We regret to say that we cannot find the outline of the Smith Dynamo which you think you have sent to us. Will you kindly obtain… | ||
| 05-page221 | Letter from a motor accessories manufacturer enclosing blueprints for the external dimensions of a Model 2b Dynamo. | ||
| View original record | X 298 CONTRACTORS TO ADMIRALTY, WAR OFFICE, & AIR BOARD Telephone MAYFAIR 6350 (6 lines). Code A.B.C. 5th Edition. Telegrams SPEEDOMET, TELEW. LONDON. S · SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page222 | The design of a cut-out for a Smith Dynamo and component selection for chassis 1001 to 1600. | ||
| View original record | To E. from EFC. X.295. EFC5/T23.4.20. X.395a - R.R. CUT-OUT TO SUIT R.R. DISTRIBUTION BOARD FOR SMITH DYNAMO. X.295 Could you kindly let us know what is being done in connection with the R.R. design… | ||
| 05-page223 | Letter to S. Smith & Sons, Ltd. enquiring about the progress of two special chassis lighting dynamos. | ||
| View original record | c. Wd/Ms. X 295 EFC4/T. 3rd. May, 1920. Messrs. S. Smith & Sons, Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, Re Chassis Lighting Dynamos. We received your letter, ref. CWN/LLL of the… | ||
| 05-page224 | Design of an R-R cut-out for a Smith dynamo and potential delays. | ||
| View original record | R. R. Ltds. Form T/118. Apl. 19-3-20. 2000 X-295- EFCB/T3.5.20. To R. from EFC. c. to S. c. to Da. c. to Bn. X. 3958. R.R. CUT-OUT. X. 3975. Further to our enquiries EFC1/T15.4.20, and EFC5/T23.4.20,… | ||
| 05-page225 | Letter from S. Smith & Sons regarding the dispatch of a sample dynamo and an upcoming order. | ||
| View original record | CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines). Code A.B.C. 5th Edition Telegrams SPEEDOMET TELEW, LONDON S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page226 | Letter from S. Smith & Sons regarding the shipment of a Model 2D Dynamo for testing. | ||
| View original record | X.295 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page227 | Automatic dynamo switch, advising to use a Lucas fitting for testing due to incomplete drawings of the R.R. device. | ||
| View original record | To EFC. from E. Copy to CJ. Bn. x 295 E2/G6.5.20. X.295. X.3958. RE R.R. AUTOMATIC DYNAMO SWITCH. In reply to your memo EFC5/T3.5.20, kindly note that Mr. Royce is of the opinion that the testing of… | ||
| 05-page228 | The testing and redesign of dynamo cut-outs. | ||
| View original record | To EFC. from R. Copy to CJ. X.3975 R1/G8.5.20. X.3958. RE CUT-OUTS. X.3770. X.295. We are going into the question of the cut-out, but we feel sure we ought not to delay the test of the Smith dynamo… | ||
| 05-page229 | Distribution board suitable for both Lucas and Smith dynamos. | ||
| View original record | X 295 To Da. from EFC. c. to En. c. to Hs. c. to RHC. EFC4/T10.5.20. X.3555 - R.R. DISTRIBUTION BOARD TO SUIT LUCAS DYNAMO. X 295 X 3470 X 3958 We attach a copy of Mr. Elliott's note E2/06.5.20 in… | ||
| 05-page230 | Letter to S. Smith & Sons Ltd. regarding the testing of a sample 2D dynamo and requesting a second machine. | ||
| View original record | R.R. 132a (Int. T) G. Ltd. 10-2-20-C. 2003. X 295 EPC5/T10.5.20. Messrs. S. Smith & Sons Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, Many thanks for your two letters of the 4th inst.,… | ||
| 05-page231 | The receipt of springs from G. Salter & Co. and a sample dynamo from S. Smith & Sons, with the spring entries crossed out. | ||
| View original record | X 295 Mr. Clark, from O.O. Wd/Dn2/HP10.5.20. X.2496. R.H.C. Also from Messrs. G. Salter & Co., 3 springs N. 4426. stores sheet 184066 of the 7th inst. X.3664. R.H.C. From Messrs. G. Salter & Co., 6… | ||
| 05-page232 | Letter from S. Smith & Sons regarding the receipt of Dynamo No.1438 and the dispatch of a second machine. | ||
| View original record | x.295.G. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S·SMITH & SONS (M·A) LTD MANUFACTURERS OF… | ||
| 05-page233 | Letter to S. Smith & Sons, Ltd. regarding the return of a model 2D dynamo and the retention of a cut-out. | ||
| View original record | X-295 EFCB/T. 12th. May, 1920. Messrs. S. Smith & Sons, Ltd., 179-185 Great Portland Street, London, W.1. Dear Sirs, X 295 Chassis Lighting & Starting Dynamo. X 3771 Now that we have received the… | ||
| 05-page234 | To the Shipping Office regarding the return of a loaned Smith dynamo and its replacement. | ||
| View original record | X.295 To Shipping Office. c. Despatch Stores. c. Wd/Me. EFC7/T12.5.20. X.295 - SMITH DYNAMO. We are sending into the Stores one Model 2D Smith dynamo. Will Shipping Office kindly give instructions for… | ||
| 05-page235 | Specification sheet comparing Type A and Type 3A Smith (T & M) 12 Volt chassis dynamos. | ||
| View original record | K.295.-PARTICULARS OF SMITH (T & M) 12 VOLT CHASSIS DYNAMOS. Type A. Type 3A. Carcass. Material I.C. I.C. Length 5.75 5.50 Diameter 5.89 5.89 Thickness .375 .375 Armature. Diameter 3.195 3.195 Active… | ||
| 05-page236 | Test results for a Smith 'A' dynamo with brushes in the normal (fully hot) position. | ||
| View original record | RR. 500 [1203]-GF 24-1-19. 10M 269157 X.295 90938 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark I 14/6/20 Order No: X 295 Customer's No.: FB.12 Re: [Strikethrough: X 295] Smith 'A' dynamo Brushes in… | ||
| 05-page237 | Test results table for Speed, Amps, and Volts with 'Brushes fully Back'. | ||
| View original record | RR 300 (12/28) (SP 249 26-1-19) 10M 300512 90939 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II To ___________________________19 Order No.__________________ Customer's No. H/313 Re_________________________… | ||
| 05-page238 | Test sheet recording speed, amperage, and voltage readings with 'brushes fully forward'. | ||
| View original record | R.R. 500 (1208) (SF 349 24-5-19) HSP 200552 90940 ROLLS-ROYCE LIMITED. INSTRUCTIONS. III To __________ Order No __________ Customer's No. H.B.14. Re Brushes fully Forward. | Speed | Amps. | Volts. |… | ||
| 05-page239 | Instruction sheet recording speed, ampere, and voltage measurements after adjusting brushes. | ||
| View original record | R.R. 10B (12/38) (SP JAN 24-1-39) MP 200/13 90941 ROLLS-ROYCE LIMITED. INSTRUCTIONS. HI To Order No. Customer's No. 19 HB15. Re Brushes Normal again Speed Amperes Volts 580 0 13.6 600 1.10 13.7 645… | ||
| 05-page240 | Instructions for fitting a modified Smith dynamo to an experimental car, noting wiring and polarity changes. | ||
| View original record | X.295 EPC2/T17.5.20. To RHC. from EFC. c. to Bn. c. to De. c. to He. X.295 - SMITH DYNAMO FOR EXPERIMENTAL CAR. X.3972 X.3478c X.3923 We are handing over to you one of the two Smith dynamo quite… | ||
| 05-page241 | Instructions for modifying dynamo polarity markings and connections for new wiring and a side-entry switchbox. | ||
| View original record | Contd. -2- EFC2/T17.5.20. you to mark the dynamo + where this is now marked - and vice versa. Then connect up according to the diagram. We are assuming that the connections will be made with the new… | ||
| 05-page242 | Letter from S. Smith & Sons acknowledging an order and advising that the requested dynamo is in transit. | ||
| View original record | x 298 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines) Code A.B.C. 5th Edition Telegrams: SPEEDOMET. TELEW. LONDON. S. SMITH & SONS (M·A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page243 | Instruction sheet with test results for a Smith Dynamo Type 29 2D(I) at 17°C. | ||
| View original record | RR 300 (1203) DF 349 24.6.19 PRP 200513 90943 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Mr Clark. Order No. Customer's No. F/B 17. Re X .295 Smith Dynamo Type 29 2D(I) .6C Volts Cold 17°C. Speed | Volts… | ||
| 05-page244 | Instruction sheet with performance data for a Smith Dynamo Type 2D(2). | ||
| View original record | R.R. 500 (12/18) (S/P 24.3.) (N) MSP 200/1/12 90944 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 17. 5. 1920 To: Mr Clark. Order No: X. 295 Customer's No: 4/P18. Re: Smith Dynamo Type 2D (2) C.C. Volts Cold 15°… | ||
| 05-page245 | Test results for a Smith Dynamo 2D(2) cut-out put under cold conditions. | ||
| View original record | R.R. 500 (12/18) G.S.P. 54 6.19. P5P 2085.53 X 295 I 90945 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark. Order No: - Customer's No.: YB19. Re: X Date: 18/5/20 Smith Dynamo. 2D(2) Cut out put Cold… | ||
| 05-page246 | Instruction and test data sheet recording Speed, Amperes, and Volts. | ||
| View original record | R.R. 308 (120M) (SP 509 24-1-19) MP 269151 90946 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II To _____ Order No. _____ Customer's No. H320. Re _____ Table of test results: Speed | Amperes | Volts 820 | 12.60… | ||
| 05-page247 | To Mr Clark from O.O. listing the receipt of various parts from suppliers. | ||
| View original record | G.R. No. 124. (10M) (N.Y. & P.) 6.3.20 C 353 X.295 Mr Clark. from O.O. Wd/Dn2/HP18520. 18th May.1920. Handwritten note left margin: Both Rec'd X.295. Please note we have received from Messrs. S. Smith… | ||
| 05-page248 | Request for 7 photostat copies of a sheet of curves for a Smith Type A Dynamo. | ||
| View original record | To Mr. Clough. from EPC. X 295 EPC1/119.5.20. X.295 - SMITH DYNAMO. Kindly supply 7 photostat copies, two-thirds linear size, of the accompanying sheet of curves in connection with the Effect of… | ||
| 05-page249 | The performance curves of a Smith Dynamo, detailing the effect of brush position variation on output. | ||
| View original record | X 295 EFC2/T19.5.20. To R. from EFC. c. to W. c. to E. c. to Bn. c. to Da. c. to PN. X.295 - SMITH DYNAMO. We attach photostat copy of some curves showing the effect of variation of brush position on… | ||
| 05-page250 | Note on obtaining performance curves and adjusting the output for Lucas dynamos. | ||
| View original record | Contd. -2- EFC2/119.5.20. *3014 a/b X37046 Similar curves will be obtained in due course for the Lucas E.575 dynamo. We have already made use of the principle of moving the control brush on the Lucas… | ||
| 05-page251 | Performance graph showing the effect of brush position on the output of a Smith Type A Dynamo. | ||
| View original record | OUTPUT Amperes BRUSHES FULLY FORWARD 15.40 BRUSHES NORMAL 15.40 VOLTS BRUSHES FULLY BACK C=14.4 VOLTS EFFECT OF VARIATION OF BRUSH POSITION ON OUTPUT OF SMITH TYPE A DYNAMO DYNAMO SPEED (R.P.M.) 590… | ||
| 05-page252 | Instruction sheet detailing test results for a Smith 2.D(2) dynamo, recording voltage output at different speeds. | ||
| View original record | ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: H. Clark. Order No.: Re: X. 295 Customer's No.: /7322 Smith 2.D(2) dynamo O.C. Volts fully HOT 80°C. Table: Speed | Volts 420 | 10.0 480 | 12.1 530 | 14.1 575 |… | ||
| 05-page253 | Instructions and test results for a Smiths dynamo output under cold conditions. | ||
| View original record | RR 500 (12/20) (SP 249-3-19) MP 20015 X-295 90970 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr. Clark. Order No: — Customer's No.: 76H.O. Re: X 295 2D1 & 2D2 Smiths dynamo. 2D(I) output Cold Condition… | ||
| 05-page254 | Instruction sheet showing performance data for a Smith Dynamo under cold conditions. | ||
| View original record | R.R. 708 (120M) (SP Jan 24-1-19) HSP 200152 90981 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark. Order No: Re: X Customer's No.: H351. 31/5/20 Smith Dynamo. 2D(I) Cold Condition 15°C Speed | Amperes… | ||
| 05-page255 | Instruction sheet showing test results for Speed, Amperes, and Volts. | ||
| View original record | R.R. 388 (11500) (SF 349 26-1-19) PEP 20815/1 90982 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II To Order No Customer's No. Y/B 52. Re 19 | Speed | Amperes | Volt's. | |---|---|---| | 1420 | 12.50 | 14.30 |… | ||
| 05-page256 | Test results for a Smith Dynamo showing output Amperes and Volts at various speeds. | ||
| View original record | R.R. 500 (12/18) DFP 349 24.3-19_ PSP 200512 90949 ROLLS-ROYCE LIMITED. INSTRUCTIONS. I To: M^c Clark Customer's No.: H/B23. 19/5/20 Re: Smith Dynamo. out put fully hot 80°C 2D(2). Speed | Amperes |… | ||
| 05-page257 | Instruction sheet recording speed, amperes, and volts test data. | ||
| View original record | RR 300 (12/35) OSP 349 24-5- (8) HSP 30/1/10 90950 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II To Order No Re Customer's No. Y/B23. Table of Readings: Speed | Amperes | Volts 1660 | 8.00 | 14.42 1890 | 7.45… | ||
| 05-page258 | Instruction sheet comparing the electrical and mechanical performance of different Smith Dynamos models. | ||
| View original record | RR.500(12/18) 150P 24-1-19. H&P 7649/12 X.295 90968 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr. Clark 21/5/20 Order No: - Customer's No. 71338. Re: X 275 Smith Dynamos 2D(1) & 2D(2). These dynamos are… | ||
| 05-page259 | Instructions regarding the electrical performance of a dynamo to be fitted to a car. | ||
| View original record | R.R. 500 (1208) (SP 549 26.8.(18) PSP 308512 90969 ROLLS-ROYCE LIMITED. INSTRUCTIONS. II 19 To Order No. Customer's No. H/B39 Re to be fitted to a car. It is not quite so good electrically as 2D(2)… | ||
| 05-page260 | Letter from S. Smith & Sons confirming receipt of a Model 2D Dynamo. | ||
| View original record | X. 295. CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone: MAYFAIR 6350 (6 lines). Code: A.B.C. 5th Edition. Telegrams: SPEEDOMET, TELEW, LONDON. S. SMITH & SONS (M.A) LTD MANUFACTURERS OF… | ||
| 05-page261 | Correspondence from S. Smith & Sons regarding a returned Model.2D Dynamo and test results for magnetic hum. | ||
| View original record | X275 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR BOARD Telephone MAYFAIR 6350 (6 lines) Code A.B.C 5th Edition Telegrams SPEEDOMET, TELEW, LONDON S. SMITH & SONS (M.A) LTD MANUFACTURERS OF MOTOR… | ||
| 05-page262 | List of new parts fitted to the new 6.EX car, which is replacing the 1.EX car. | ||
| View original record | To R. from Hs. c. to C.J. c. to En. c. to E. c. to De. Hs2/LG28.5.20. X.3923. RE NEW CAR - 6.EX. We have been delayed on 6.EX Car which we are sending to you to replace 1.EX Car, owing to the trouble… | ||
| 05-page263 | Unreliability of the Lucas C.575 Dynamo and considering its replacement with a Smith dynamo. | ||
| View original record | To EFC. from R. Copy to CJ. x 295 R3/G31.5.20. X.4060. X.295. RE LUCAS C.575 DYNAMO. X.3763. X.2778. X.3770. I am in receipt of your memo EFC1/T29.5.20, on Lucas C.575 Dynamo, for which I thank you.… | ||
| 05-page264 | Instruction sheet providing the weight of a Smith DD dynamo armature, complete less pulley. | ||
| View original record | R.R. 369 (120M) (SF 349 24.1.19) (PQP 205552) X 295 91356 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To E.F.C. 19 Order No. Customer's No. F.C. 31 Re X 295 Smith DD dynamo armature. The weight of the above… | ||
| 05-page265 | The known faults with the electrical equipment for the 40/50 chassis. | ||
| View original record | X295 Extract from HS3/LG7.6.21 X.2565 X.4150 40/50 CHASSIS. X.4165 X.4165 X.4284 X.1692 X.295 Another item in which the reduction in out-put will affect very necessary improvement, is the electrical… | ||
| 05-page266 | Report comparing the reliability of Delco and Smith electrical components against Lucas, based on tests conducted on a Marmon car. | ||
| View original record | -2- such as fuses blowing, or dynamo belts need adjustment, none-the-less they are irritating. We have kept a careful record of the troubles we have had with the Delco equipment on the Marmon Car.… | ||
| 05-page267 | On the delay of essential improvements due to a reduction in output and the problem of shipping cars with known faults. | ||
| View original record | contd. -3- and the switch will be more expensive. The point we wish to bring to everybody's notice is that owing to the sudden reduction in out-put, many essential improvements are going to be… | ||