Rolls-Royce Archives
| Identifier | Entry | ||
| scan0001 | Letter from American Bosch Magneto Corporation concerning sample magnetos and ignition system components. | ||
| View original record | X 6128. AMERICAN BOSCH MAGNETO CORPORATION MANUFACTURERS OF ELECTRICAL DEVICES FOR THE AUTOMOTIVE INDUSTRIES In replying address the corporation for the attention of L. W. Rosenthal SPRINGFIELD… | ||
| scan0002 | Inter-office memo from American Bosch Magneto Corporation detailing the computation of governor characteristics. | ||
| View original record | X. 4275. INTER-OFFICE AMERICAN BOSCH MAGNETO CORPORATION SPRINGFIELD American Bosch Magneto Corporation Building Refer answer to RHe. Attention of Mr.Rosenthal. Dictated by VG:O SUBJECT COMPUTATION OF… | ||
| scan0003 | Concluding page of a report discussing the complexity of variables and advising against a 'cut-and-try' method. | ||
| View original record | - 2 - If a point of contraflexure should be required at some point in the characteristic, this might be obtained and its location adjusted by change of the initial position of the ring. It will be… | ||
| scan0004 | Mathematical procedure and equations for a ring governor. | ||
| View original record | Procedure :- Ring Governor. K + PA/R = S² sin 2(Φ + A/R)k (4) Unknown :- K, P, and R K = initial tension of spring A = deg. advance P = torque of spring per degree movement of ring R = reduction… | ||
| scan0005 | Table of values and a plot for the function sin 2(50 + θ). | ||
| View original record | (f) = sin 2 (50 + θ) Table of values: θ y 0 .985 5 .940 10 .867 15 .767 20 .643 25 .500 30 .342 35 .174 Graph: Plot Label: sin 2 (50° + θ) X-axis (θ): 0, 5, 10, 15, 20, 25, 30, 35, 40 Y-axis: 1.0, .9,… | ||
| scan0006 | Chart of estimated turns versus stiffness for various ring governor springs. | ||
| View original record | H. W. Webb, Sta. J, New York. N. Y. -Negative 2. ESTIMATED TURNS FOR RING GOVERNOR SPRINGS American Bosch Magneto Corp Research Laboratory File ............ JAN. 6. 1921 EFFECTIVE FREE TURNS STIFFNESS… | ||
| scan0007 | Ignition system for the Goshawk I engine, comparing various magneto and battery ignition options. | ||
| View original record | To Hs. from R. c. to CJ. c. to EFC. X.4275 R10/G15.2.21. X. 3485 - RE "GOSHAWK I" - IGNITION. X.4275. X.3481. I do not think it would be good to put on the Bosch (American) ignition until Clark has… | ||
| scan0008 | Lessons learned from U.S.A. electrical ignition equipment, comparing it to Remy and Bosch systems. | ||
| View original record | R.R. 936A (100 T) (S.H. 798. 10-12-20) G. 2947 X.4275 To Hs. from R. c. to CJ. c. to Wor. R3/G16.2.21. X.4275 - RE U.S.A. ELECTRICAL EQUIPMENT X.2814. X.918. X.3199. With reference to learning… | ||
| scan0009 | Comparative analysis of the American Bosch Battery Ignition system, focusing on its governor, contact maker, and coil. | ||
| View original record | To HS. from R. Copy to OJ. " " WOR. " " EEC. " " R.R. of America Inc. (For attention of OY.) RECEIVED X4275 RE AMERICAN BOSCH BATTERY IGNITION. GOVERNOR. X3949 We do not think the governor is as… | ||
| scan0010 | Quality and cost of a distributor, comparing it to Bosch equipment and American manufacturing standards. | ||
| View original record | To HS. from R. -2- R11/G16/2/21 Contd. however, that it is the best quality of bakerlite. DISTRIBUTOR. Regarding the distributor, this appears to be distinctly defective, although simple to look at.… | ||
| scan0011 | Manufacturing proprietary mouldings and comparing Bosch, Delco, and Remy ignition systems. | ||
| View original record | To HS. from R. -3- R11/G16/2/21 Contd. that Mr. Clark should find out who controls the bakerlite patents in England, and see what it involves to put down a small plant to make our own mouldings. You… | ||
| scan0012 | Comparing Bosch and Remy distributors and discussing manufacturing capabilities relative to the Americans. | ||
| View original record | To HS. from R. -4- R11/G15/2/21 Contd. It will be observed that the Bosch distributor has many fits before one comes to the jump spark distributor, and it is impossible to see what the clearance is,… | ||
| scan0013 | On the U.S.A. Bosch battery ignition, detailing its components and supply terms from Bosch and Delco. | ||
| View original record | R.R. 886a (100 T) S.H. 798. 10-12-20. G. 2947 X.4275 & E To R. from Hs. c. to CJ. c. to Da. c. to EWT. for R. R. Inc. Hs7/LG24.2.21. X.4275 - U.S.A. BOSCH BATTERY IGNITION. X. 4284. X. 2894.… | ||
| scan0014 | Decoded cablegram from Springfield requesting spark advance curve data for Bosch battery ignition, with a handwritten reply. | ||
| View original record | HS EFC X.4275 CABLEGRAM RECEIVED FROM SPRINGFIELD. on 28th.February 1921. IVVEV NUMBER SLYAK FIFTYTWO HIVES HIVES ODYEK SEND (S) CYBCU CURVE YOREX SPARK (S) (ED) (ER) (S) AFTUY ADVANCE FEEVY FOR BOSCH… | ||
| scan0015 | List of questions for Mr. Royce regarding battery ignition systems. | ||
| View original record | X.4275 EFC/T3.3.21. X.3199 - BATTERY IGNITION - GENERAL. Questions re battery ignition to which Mr. Royce requires answers. 1. Why do we have pre-ignitions due to mutual induction on the R.R.… | ||
| scan0016 | Inspection notes on U.S.A. Bosch ignition equipment and its potential use on a Goshawk I engine. | ||
| View original record | X.4275 8.3.21. COPY OF LABEL ATTACHED BY Mr. HIVES TO U.S.A. BOSCH IGNITION EQUIPMENT TAKEN TO MR. ROYCE FOR INSPECTION. X.4275 - BOSCH IGNITION X.3485. The chief point of interest is the fact that… | ||
| scan0017 | Attaching a copy of a letter regarding American Bosch Battery Ignition. | ||
| View original record | X4276 EWT. to Hs. EWT/HJC9/G24.3.21. X.4275. Re: American Bosch Battery Ignition. Attached hereto, for your information, is copy of letter reference Oy4-G.4321 addressed to Hs CJ from America. Copy… | ||
| scan0018 | Letter concerning the materials and performance of American Bosch battery ignition systems. | ||
| View original record | CC Mr. Belnap Mr. Beaver Mr. Nadin Mr. Bagnall Mr. Hulley Mr. Southern Oy4 - G 4321 March 4, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Messrs. Royce &… | ||
| scan0019 | To Claude Johnson discussing issues and comparisons of various magneto and battery ignition distributor systems. | ||
| View original record | Oy4 - G 4321 Mar. 4.21 Mr. Claude Johnson - Sheet 2. questioned as to the use of brass, they pointed to the B-6 magneto (which has a jump-spark distributor) and stated that this distributor had given… | ||
| scan0020 | American Bosch Battery Ignition, enclosing other related correspondence. | ||
| View original record | X.4275 EWT. to Hs. EWT/HJC10/G24.3.21. X.4275. Re: American Bosch Battery Ignition. Attached hereto is copy of memo from BJ. reference BJ/Py18/DB23321/165 together with copy of letter Oyl/G7.3.21… | ||
| scan0021 | Cover letter attaching a copy of another letter regarding American Bosch Battery Ignition. | ||
| View original record | COPY. To R. from B.J. c. to EWT.for Hs. BJ/Py18/DB23321/165. X.4275. Re American Bosch Battery Ignition. I attach copy of letter No: Qyl/G7321 regarding the above. You will notice the suggestion made… | ||
| scan0022 | Letter discussing technical issues with the American Bosch Battery Ignition system, specifically the governor and contact maker. | ||
| View original record | Cyl - G 7321 March 7, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Messrs. Royce & Hives. Dear Sir:- X.4275. Re: American Bosch Battery Ignition In… | ||
| scan0023 | Technical memorandum discussing the features, materials, and cost of American Bosch ignition coils and distributors. | ||
| View original record | Oyl - G 7321 March 7, 1921 Mr. Claude Johnson - Sheet 2. ignition to meet our requirements. X.918 X.2494 X.3513 X 800. [All numbers are struck through] (3) Coil: The American Bosch coil is claimed by… | ||
| scan0024 | Bakelite molding outfit at the Delco factory, pricing from the Bosch company, and the material of Delco distributor tracks. | ||
| View original record | Oyl - G 7321 March 7, 1921 Mr. Claude Johnson - Sheet 3. The Bakelite molding outfit at the Delco factory is quite as expensive a plant as our Drop Forge Shop at Derby, each press resembling a small… | ||
| scan0025 | Extract from a report on electrical matters, detailing a visit and discussions about battery ignition systems. | ||
| View original record | X.4275 Extract from Mr. Elliott's report E6/G31.3.21 re Electrical Matters. Visit of Messrs. Wormald & Hives to W.W. on 19.3.21. (16) BATTERY IGNITION. X.4275. X.2512 X.3129 X.3445. The condenser on… | ||
| scan0026 | The American Bosch Induction Coil and the use of Bakelite and other insulating materials in distributors. | ||
| View original record | H.R. 235a (100 T) (S H. 798. 10-12-20) G. 2947 X4275 Extract from Ov2/G5.4.21. April 5th 1921. X,1109 - Insulating Material. X.4275. American Bosch Induction Coil. With regard to the American Bosch… | ||
| scan0027 | Page stating that Ebonite, or 'Hard rubber', is only used for experimental work. | ||
| View original record | -2- Contd. Beyond the uses specified above, Ebonite (or 2 "Hard rubber" as it is called here) is not used except for experimental work. | ||
| scan0028 | Requesting the return of a U.S.A. Bosch Battery Ignition system. | ||
| View original record | X4275 To E. from EFC. EFC4/T15.4.21. X.4275 - U.S.A. BOSCH BATTERY IGNITION. Perhaps you would kindly now arrange for this ignition to be returned to us so that we may carry out Mr. Royce's wishes as… | ||
| scan0029 | Confirming the dispatch of a Ni-Fe battery and a delay in sending the Bosch Battery Ignition. | ||
| View original record | X4275 To EFC. from E. E1/G28.4.21. X.3717 - Ni-Fe BATTERY AND BOSCH BATTERY IGNITION X.4275. We are posting to you to-day, the Ni-Fe battery. We are unable to send the Bosch Battery Ignition yet as it… | ||
| scan0030 | From Mr. Olley discussing and comparing various ignition systems, including Delco, Bosch, and general American electrical equipment. | ||
| View original record | Cy3/G1.6.21. X.4275 June 1st 1921. To: Mr. Belnap. cc. Mr. Nadin. Mr. Bagnall. Mr. Hulley. Mr. Southern. Mr. Caswell. From Mr. Olley. X.4284. Re Mr. Royce's Reports on Ignition. X.3199 X.4275. Mr.… | ||
| scan0031 | Report discussing various ignition systems, comparing American and English manufacturers and performance. | ||
| View original record | Cy3/G16.21. -2- Contd. With the change in commercial conditions, the American Bosch, Bijur and Westinghouse are all out after the quality trade. The American Bosch ignition sent over, however, is not… | ||
| scan0032 | Extract concerning the performance and fitting of an American Bosch battery ignition on Chassis 4 EX. | ||
| View original record | X4275 Extract from Cyl/G3.6.21. RE AMERICAN PARTS ON CHASSIS 4 EX. (5) AMERICAN BOSCH BATTERY IGNITION: X.4275. This has been run about 3,500 miles entirely without trouble. The automatic advance… | ||
| scan0033 | Letter from the American branch regarding payment for a magneto and battery system furnished by the American Bosch Magneto Corporation. | ||
| View original record | H.R. 825a (100 T) (S H. 798. 10-12-20) G. 2947 X.4275. June 20/1921. Ref: NHM-3650. X.4285. X.4275. Mr. C. Johnson, Managing Director, Rolls-Royce, Ltd., London, England. Dear Sir: Attention - Mr.… | ||
| scan0034 | The petrol tank for the '4 EX' vehicle, discussing modifications, weight, ventilation, and filler design. | ||
| View original record | [Strikethrough: TO R.R. of America Inc.] from R. XH4275 R2/G21/11/21. [Strikethrough: (for the attention of Mr. ?)] [Strikethrough: Copy to Mr. Belnap.] [Strikethrough: " HS.] [Strikethrough:… | ||
| scan0035 | Communication discussing carburettor fittings and petrol level indicators, emphasizing quality and reliability over cost. | ||
| View original record | To H.R. of America Inc. from R. -2- R2/G21/6/21 Contd. the carburettor supply system; one on the floatchamber of the carburettor, and the other one on the end of the suction pipe in the tank.… | ||
| scan0036 | Application and deficiencies of a Bosch battery ignition system. | ||
| View original record | To R.R. of America Inc. from R. -3- R2/021/6/21 Contd. BOSCH BATTERY IGNITION. X4275 Regarding the Bosch battery ignition, I was pleasantly surprised how easily this was applicable to our present… | ||
| scan0037 | Technical review of a driving spindle, condenser, oil in the apparatus, and a low tension contact maker. | ||
| View original record | To R.R. of America Inc. from R. -4- R2/G21/6/21 Contd. driving spindle suits the Bosch equipment contact maker and the good bearings we provide for this spindle are available for carrying the cam for… | ||
| scan0038 | Design and placement of ignition components including the governor, coil, ballast resistance, and spares. | ||
| View original record | To R.R. of America Inc. from R. -5- R2/G21/6/21 Contd. but we do not know how much running these have done. Ignition Governor. X4275 Regarding the governor, we believe they have set this to suit the… | ||
| scan0039 | Selection of magneto, battery ignition, and switchbox components from suppliers like Bosch and Westinghouse. | ||
| View original record | To R.R. of America Inc. from R. -6- R2/G21/6/21 Contd. General. x4275 I would like to say that I am very pleased with the application of this apparatus, and think it would be very satisfactory to have… | ||
| scan0040 | To the US branch regarding the quality of supplier parts and specifications for switchboxes and other fittings. | ||
| View original record | To R.R. of America Inc. -2- R2/G21/6/21 Contd. me a very bad opinion of the quality of their productions. To a large extent I must withdraw my early impression, whether it is my fault or their fault,… | ||
| scan0041 | Sketch of a spigot for an American Bosch battery ignition on a 40/50 chassis throttle governor casing. | ||
| View original record | SPIGOT FOR AMERICAN BOSCH BATTERY IGNITION ON 40/50 CHASSIS THROTTLE GOVERNOR CASING. i.e. increased length perhaps with bronze or steel surface obtained by pressing on piece of steel tube. R.… | ||
| scan0042 | Recommendation to incorporate a modified spigot for battery ignition on 40/50 cars made at Derby. | ||
| View original record | R R. 285B (100 T) (S.H.) 28.10.12-20) To R. from Hs. c. to CJ. c. to E. c. to Da. c. to EY. X4275 Hs2/LG25.6.21. X.4275 X.3129. MODIFIED SPIGOT FOR BATTERY IGNITION. With reference to the sketch for… | ||
| scan0043 | The fitting and testing of the U.S.A. Bosch Battery Ignition system for the 40/50 chassis. | ||
| View original record | To R. from Hs.. c. to CJ. c. to E. c. to Da. c. to BY. c. to EP. c. to EWT. for R.R. Inc. X4275 TEST D (12.9.21) BUT H 2) (T OOI) A3EE K M Hsl/LG6.7.21. X 4275 ✓ X 3129 PARTS FITTED TO 4+EX CAR.… | ||
| scan0044 | Battery ignition weaknesses and ignition timing specifications for 40/50 chassis and U.S.A. Bosch Ignition. | ||
| View original record | contd. -2- 1. Automatic advance. 2. The condenser has permanent connections. 3. When water is sprayed through the radiator when the car is being washed, it will not short circuit the distributor. The… | ||
| scan0045 | Table of ignition timing settings against engine revolutions, with notes on detonation and governor performance. | ||
| View original record | contd. -3- Hs1/LG6.7.21. Engine revs. Timing of ignition before dead point. 0 6º 500 17º 750 22º 1000 30º 1250 35º 1500 38º 1750 40º 2000 42º 2250 42º We found if we retarded the hand control… | ||
| scan0046 | Extract discussing U.S.A. complaints regarding battery ignition systems and the reliability of tungsten versus platinum-iridium contacts. | ||
| View original record | X.4275 Extract from R8/G12.7.21. Re U.S.A. COMPLAINTS. BATTERY IGNITION. X.4275. X.3445. You will remember that we agreed to your fitting Bosch battery ignition provided a lengthy test proved the… | ||
| scan0047 | Experimental work and measurements on a U.S.A. Bosch battery ignition system and its components. | ||
| View original record | X4275 To R & E. from EFC. EFC2/T5.9.21. c. to CJ & PN. c. to By.& EP. c. to Rg. & Da. c. to R.R. of America Inc. X.4275 - U.S.A. BOSCH BATTERY IGNITION. X3485. We have had very little opportunity so… | ||
| scan0048 | Continued discussion on ignition systems, condensers, and the integration of a new Bosch battery ignition. | ||
| View original record | Contd. -2- EFC2/T5.9.21. contained in his Cyl/G18.7.21, in which he states that three connections are made to each condenser plate at equal distances. Even with this number of connections, we found… | ||
| scan0049 | Letter concerning quotes, delivery, and components for American Bosch Battery Ignition sets. | ||
| View original record | X4275 CC Mr. Belnap Mr. Nadin Oyl - G 18721 July 18, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Mr. Hives. Dear Sir:- X.4275 Re: American Bosch Battery… | ||
| scan0050 | Dual ignition set, coil specifications, and a mounting diagram. | ||
| View original record | Oyl - G 18721 Sheet #2. (2) Dual Set (Contd) for shipment in one month from today, one dual distributor cap, dual rotor, and dual coil, of the new dual ignition outfit which they are developing. They… | ||
| scan0051 | The ignition system's coil, condenser, and contact breaker, comparing Bosch and American components. | ||
| View original record | Oyl - G 18721 Sheet #3. As regards the protection of the coil, the only H.T. terminal is of a similar type to the magneto H.T. terminal and could be turned, as shown above with the open side away from… | ||
| scan0052 | The performance, maintenance, and costs of ignition system components like rockers, contact breakers, and distributors. | ||
| View original record | Oyl - G 16721 Sheet #4. We left the oil in to note whether it had any effect on the ignition, but detected none. Up till the time of the accident there was no oil in the case. A drop of light oil was… | ||
| scan0053 | Distributor designs and modifications to an ignition system, continued on sheet #5. | ||
| View original record | Oyl - G 18721 Sheet #5. There are millions of this type of distributor running in the U.S. with simple brass jump electrodes, generally the six electrodes in the cap being brass wire and the cap much… | ||
| scan0054 | The starting procedure for an engine fitted with a U.S.A. Bosch battery ignition. | ||
| View original record | R.R. 285A (100 T) (S H. 788, 10-12-20) G. 2947 X4275 To R. from Hs. c. to CJ. c. to E. c. to Da. Hs2/LG19.7.21. X4275 U.S.A. BOSCH BATTERY IGNITION. With reference to your query, whether it is… | ||
| scan0055 | Extract regarding permission for the U.S.A. to adopt Bosch and Bijur components for ignition, starting motor, and dynamo. | ||
| View original record | X.4276 Extract from RLO/G22.7.21. X.3614. Re U.S.A. X.4276. X.4275. X.1058 X.3560 X.3231. We have given them permission to adopt the Bosch Ignition, the Bijur Starting Motor, and the Bijur Vibrator… | ||
| scan0056 | Letter discussing the supply and suitability of ignition parts, generators, and starting motors from Delco. | ||
| View original record | x4275 CC Mr. Belnap. Mr. Nadin. August 3, 1921. OY8-G3821. Dear Hives: X.4284 - RE DELCO X.4275. Your letter Hs3/LGS.6.21. We have received prints from the Delco people of ignition parts which they… | ||
| scan0057 | Issues with American Bosch dual ignition sets and considering a Delco replacement. | ||
| View original record | OY8-G3821. -2- Contd. We are also up against it with the American Bosch on their dual ignition set, because their fool Sales Dept. want us to pay "cost plus" for them to make one up for us by hand. So… | ||
| scan0058 | Letter to the Managing Director outlining reasons against approaching the American Bosch Co. to produce a special ignition coil. | ||
| View original record | X.4275; CC Mr. Belnap Mr. Nadin Oy8 - C 4821 August 4, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Messrs. Royce & Hives. Dear Sir: Re: American Bosch… | ||
| scan0059 | Coil mounting and the durability of platinum iridium points in contact breakers. | ||
| View original record | Oy8 - G 4821 Sheet #2. With regard to its mounting, we suggest that the position shown by Mr. Hives in the photograph attached to his letter Hs1/LG6.7.21 is very neat and accessible. An advantage of… | ||
| scan0060 | Technical specifications and test results for a USA Bosch Battery Ignition Coil. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X 4275 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: EFE Order No: AB. 16. Customer's No: / Date: 5 Aug. 1921 X 4275 USA Bosch Battery Ignition. The particulars… | ||
| scan0061 | Calculations for electrical impedance, resistance, and inductance of a secondary component. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To 19 Order No Customer's No. Z (Secondary) Impedance at 50.7~ = 14,580 w Taken on 200 volts a.e. with a.e.… | ||
| scan0062 | Test results and calculations for a ballast and a condenser. | ||
| View original record | RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No. 3 19__ BALLAST Resistance cold = .313 ωs. By inst. 40, 1.5 volt and amp. ranges.… | ||
| scan0063 | The performance of a condenser, comparing it to the standard RR model. | ||
| View original record | RR 235 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 19 To Order No Customer's No. 4. dielectric losses, soon heat up the condenser and allow a large leakage current to… | ||
| scan0064 | The initial testing and measurement of a U.S.A. Bosch battery ignition system. | ||
| View original record | To R. & E. from EFC. c. to CJ. & PN. c. to By. & EP. c. to Rg. & Da. c. to R.R. of America Inc. X.4275 - U.S.A. BOSCH BATTERY IGNITION. X.3485 We have had very little opportunity so far for conducting… | ||
| scan0065 | Condenser connections and various battery ignition systems, including Goshawk II and U.S.A. Bosch. | ||
| View original record | EFC2/T5.9.21. -2- Contd. connections of the condenser contained in his R2/G21.6.21, this has been answered by Mr. Olley's notes on the condenser contained in his OY1/G18.7.21, in which he states that… | ||
| scan0066 | On testing U.S.A. Bosch condensers for battery ignition systems and recommending further trials for the Goshawk II. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. c. to EWT. for R.R.Inc. X2572 CONDENSERS FOR BATTERY IGNITION. X4275 X2874 We have been running 1.EX Car fitted with a condenser taken from the… | ||
| scan0067 | On the successful testing and adoption of Bakelite-Micarta bushes to replace fibre bushes in magnetos. | ||
| View original record | To R. from Hs. c. to CJ. c. to Da. c. to BY. c. to EP. c. to Wd. c. to EWT. for R.R.Inc. x4275 Hs5/LG16.9.21. X.430. MAGNETO. X.3513. X.4275. X.4411. We have been running Bakelite-Micarta (linen or… | ||
| scan0068 | Recommendation to fit Bakelite-micarta bushes to magnetos and source them from Springfield. | ||
| View original record | Contd -2- Hs5/LG16.9.21. cannot work or else it becomes very loose and wears badly, whicha upsets the adjustments of the points. We recommend that we should immediately obtain Bakelite-micarta bushes… | ||
| scan0069 | Extract discussing the high capacity and space efficiency of U.S.A. Bosch battery ignition condensers. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 16-12-20) G 2947 X.4275. Extract from EFC2/T27.9.21. X.2512- CONDENSERS FOR BATTERY IGNITION. X.4275. The U.S.A. Bosch battery ignition condensers already reported in our… | ||
| scan0070 | Test results of standard and U.S.A. Bosch ignition coils. | ||
| View original record | X.4275. 25.10.21. X.3445. X.4079 TEST RESULTS OF STD & U.S.A. BOSCH IGNITION COILS. X.4275. | Coil. | PRIMARY. | | | | SECONDARY. | | | | Remarks. | |---|---:|---:|---:|---:|---:|---:|---:|---:|---| |… | ||
| scan0071 | Letter from Rolls-Royce of America concerning battery ignition condenser tests and insulation breakdown. | ||
| View original record | X4275 Oy5 - G 211121 Nov. 21, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. X.4275 . X2512 . X4430. Copies attached for Mr. Hives & Mr. Clarke. Dear Sir:- Re: Battery… | ||
| scan0072 | Letter from American Bosch Magneto Corporation comparing testing procedures for battery ignition condensers. | ||
| View original record | AMERICAN BOSCH MAGNETO CORPORATION Springfield, Mass. Sept. 6, 1921 Rolls-Royce of America, Inc. Springfield, Mass. Att. Mr.Olley Re: Battery Ignition Condenser Tests. Gentlemen:- I have at hand your… | ||
| scan0073 | Letter from American Bosch Magneto Corporation discussing condenser leakage resistance, capacity, and manufacturing processes. | ||
| View original record | -2- This leakage resistance is also a function of the moisture in the condenser. Our wound condensers are dried in a vacuum oven before baking and assembling. The insulation resistance is then… | ||
| scan0074 | Query regarding the status of an order for three sets of U.S.A. Bosch battery ignition systems, with supporting extracts. | ||
| View original record | Wd. from EFC. EFC1/T13.12.21. X.4275 X.4275 - U.S.A. BOSCH BATTERY IGNITION. Have we on order, and are we expecting to receive shortly, three sets of U.S.A. Bosch battery ignition, in accordance with… | ||
| scan0075 | Request for a performance report on an American Bosch Ignition system on the 4-EX. | ||
| View original record | R. R. A. 25 25m. 12-20-20 40849 INTER-OFFICE CORRESPONDENCE X. 4275. ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Cyl - G 1322 March 1, 1922 Dear Hives: Re: American Bosch Ignition on 4-EX. May we… | ||
| scan0076 | Technical evaluation and comparison of the American Bosch battery ignition system. | ||
| View original record | H.R. 110(100 T) S.M. 798. 10-12-20) G 2547 E F C R11/G16.2.21. To Hs. from R. c. to CJ. c. to Wor. c. to EFC c. to R.R. of America Inc. (For attention of CY). X.4275 - RE AMERICAN BOSCH BATTERY… | ||
| scan0077 | Analysis of a distributor, comparing its quality, manufacturing, and cost against Bosch equipment. | ||
| View original record | R.R. 884 (100 T) (S.H. 798. 10-12-20) G 2947 Contd. -2- R11/G16.2.21. units, but the brown material appears to be rather soft. We presume, however, that it is the best quality of bakelite. DISTRIBUTOR… | ||
| scan0078 | In-house manufacturing of Bakelite moldings and comparing Bosch, Delco, and Remy ignition systems. | ||
| View original record | R.R. 936A-(100 T) (S.H. 798. 10-12-20) G. 2947 -3- R11/G16.2.21. Contd. for us to get hold of a reasonably inexpensive source of mouldings of bakelite and ebonite, otherwise we cannot hope ever to be… | ||
| scan0079 | Continued discussion on faults with Delco ignition distributors and manufacturing comparisons. | ||
| View original record | H.H. 285a (500 T) (S.H. 798, 10-12-20) G. 2947 Contd. -4- R11/G16.2.21. In addition to this fault, the only other complaint we know of with the Delco ignition is the apparent want of life in the… | ||
| scan0080 | Features, materials, and supply conditions of a U.S.A. Bosch Battery Ignition system. | ||
| View original record | R.R. 235a. (109 T) (S.H. 798. 10-12-20) G. 2947 E.F.C. & E To R. from Hs. c. to CJ. c. to Da. c. to EWT. for R. R. Inc. Hs7/LG24.2.21. X.4275 - U.S.A. BOSCH BATTERY IGNITION. X.4284. X.2894.… | ||
| scan0081 | Technical memorandum discussing the 'Goshawk 11' battery ignition and comparing various distributor designs. | ||
| View original record | R.R. T. (100 T) (S.H. 798. 10-12-20) G. 2947 E.F.C To. R and E. from Hs. c. to CJ. Hs8/LG24.2.21. X.3485 "GOSHAWK 11" BATTERY IGNITION. X.800 X.4285 E1/G22.3.21. We have found no disadvantage in the… | ||
| scan0082 | Test results of standard and U.S.A. Bosch ignition coils. | ||
| View original record | X.4275. 15.9.22. X.3445. X.4079. X.4275. TEST RESULTS OF STD. & U.S.A. BOSCH IGNITION COILS Coil. PRIMARY SECONDARY Resis. (W). Imped.at 50~(W). Reac.at 50~(W). Induc. (hys). Resis. (W). Imp.at… | ||
| scan0083 | Technical memorandum regarding phenomena found in the Goshawk and other battery ignition systems. | ||
| View original record | To EFC. from R. c. to CJ. Wor. PN. c. to EY. Hs. EP. X4275 R/M 13.11.22. X4027. X3668 X4275 X.3199 - RE GOSHAWK AND OTHER BATTERY IGNITIONS. The phenomenon found in the Goshawk suggests additional… | ||
| scan0084 | Proposing tests for condenser materials and discussing ignition coil construction and failures. | ||
| View original record | Contd. -2- RL/M13.11.22. the virtues suggested in paras. 2, 3, & 4. (7) Can you test a number of suitable materials probably with a high alternating electromotive force perhaps made into a condenser… | ||
| scan0085 | Letter discussing the testing, comparison and potential standardisation of stabalite and mouldensite ignition coils for the Goshawk engine. | ||
| View original record | Contd. -3- R1/M13.11.22. through the side of a present defective Elo case, as it may be that we are experiencing a loss of energy by direct leakage as well as by other dielectric actions, as we have a… | ||
| scan0086 | Procedure for standardizing the American chassis to match the English chassis, including specific critiques of the Bosch battery ignition system. | ||
| View original record | To BJ. from R. c.c. to CJ. Wor. c.c. to BY. Hs. c.c. to OY. EP. X4275 R1/M27.12.22. RE. AMERICAN PROCEDURE. X.4305 X.4390 X.4275. X.3614. Mr. Olley should not expect much correspondence from me, not… | ||
| scan0087 | Engine improvements, focusing on ignition, heated throttles, and induction systems for cold weather performance. | ||
| View original record | contd:- -2- a space. In the ignition we have designed and made ourselves for the Goshawk, and are applying to the 40/50, this and many other smaller improvements have been introduced. (3) The third… | ||
| scan0088 | Continued note on the main throttle valve, identifying it as a patentable feature for safety reasons. | ||
| View original record | contd:- -3- main throttle valve. We think this is a patentable feature as it is manifestly valuable for safety. R. [Watermark: MADE AT CROXLEY] | ||
| scan0089 | Expressing dissatisfaction with the electrical equipment for the U.S.A. Springfield chassis, questioning its reliability and considering alternatives. | ||
| View original record | X4275 To EFC. from R. R12/M20.9.23. SPRINGFIELD ELECTRICAL EQUIPMENT. X.3966. X.4275. X.4276. I am very dissatisfied with the equipment for the U.S.A. Springfield chassis. It is like the supplies of… | ||
| scan0090 | Extract of a communication regarding the reliability of American Bosch ignition systems on Springfield electrical equipment. | ||
| View original record | X4275 Extract from EFC4/T8.10.23. RE SPRINGFIELD ELECTRICAL EQUIPMENT. X.3966. Answering your R12/M20.9.23. (a) As regards the American Bosch battery ignition, contact breaker and distributor, we see… | ||
| scan0091 | Alternative metals for H.T. distributors and issues with insulation tracking compared to a Bosch part. | ||
| View original record | x4275 To EFC. from R. R3/M15.9.25. X.800 X.4357 X.8690 X.4275 In our H.T. distributors I believe we use nickel. Would any other metal be more suitable such as tungsten, real silver or stainless steel… | ||
| scan0092 | From 'R.' to 'EFC.' posing several questions regarding electrical experiments, particularly comparing coils and contact points. | ||
| View original record | X4275 To EFC. from R. RL/M16.8.26. X.4275 X.2894 I should be very glad to know if you are sufficiently forward with your electrical experiments to come and see me any day after this week. The points… | ||
| scan0093 | Ignition contact points, comparing materials, and arranging a meeting. | ||
| View original record | To R. from EFC. X4275 EFCL/T20.8.26. IGNITION CONTACT POINTS. X4652 X2894 X4275 Answering your EL/M16.8.26, as matters stand I had arranged for the completion of my annual holiday during next week… | ||
| scan0094 | Comparative bench tests of ignition contact points made from Platinum, English tungsten, and U.S.A. tungsten. | ||
| View original record | Contd. -2- EFCL/T20.8.26. We have in progress a systematic set of comparative tests of (a) Platinum, (b) English tungsten (c) U.S.A. tungsten points, working on - (1) Our present standard ignition… | ||
| scan0095 | Temperature-current tests comparing a leaky American Bosch condenser with the company's own manufactured condensers. | ||
| View original record | Contd. -3- EFC/T20.8.26. temperature-current tests (on 200 volts A.C.) on a condenser of the American Bosch ignition set in which it was shewn to be distinctly leaky and it was at the time compared… | ||
| scan0096 | Inter-office correspondence detailing the components of two special clockwise distributor heads being shipped to Derby. | ||
| View original record | RRA 25 20m-7-26 54866 4275 INTER-OFFICE CORRESPONDENCE ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. POST RECEIVED SEP 16 1926 HS 16/9/26 ACR-1857 Sept. 7, 1926 Rolls-Royce, Ltd. W. Derby, England.… | ||
| scan0097 | Page 2 of a letter listing various parts with quantities and descriptions. | ||
| View original record | -2- Rolls-Royce, Ltd. Sept. 7, 1926 K-4404 Plain Washer for Coil Bracket 3 Off K-4506 Lock " " " 3 " K-4506 " " Distributor casing 8 " K-4508 " " Coil Bolts 2 " K-4209 Nut for Gears on Drive Shaft 2 "… | ||
| scan0098 | Letter concerning the dispatch of a complete double ignition head and coils for a Phantom engine. | ||
| View original record | X42755 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy7-E-91726 September 17, 1926 Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. Re Battery Ignition I had meant to write you before that in… | ||
| scan0099 | Receipt and planned testing of American Bosch battery ignition equipment. | ||
| View original record | To R. from EFC. C. to E. By. C. to Wor. Cy. C. Bl. X4275 EFC3/TES.10.26. AMERICAN BOSCH BATTERY IGNITION EQUIPMENT. X4275 X4652 We have received from Mr. Olley one duplex unit of American Bosch… | ||
| scan0100 | Preliminary examination of an American Bosch ignition coil and distributor fitted to a chassis in America. | ||
| View original record | EFC. WB.108. 25.10.26. COPY. X.4275. AMERICAN BOSCH IGNITION COIL AND DISTRIBUTOR AS FITTED TO RR.CHASSIS IN AMERICA. PRELIMINARY EXAMINATION. This unit as received consisted of two ignition coils and… | ||
| scan0101 | Plan to test an American battery ignition unit on a Phantom, noting its successful use in the USA. | ||
| View original record | WB.108. -2- Contd. in the U.S.A. and we assume this unit, because it is fitted to RR. cars, represents the latest evolution of battery ignition units. It will be interesting there-fore to observe the… | ||
| scan0102 | Comparison of an American Bosch ignition coil's resistance and inductance against standard company coils. | ||
| View original record | X4275 To R. from EFC. c. BJ. Wor. c. Oy. By. c. Rg. EFC2/T8.11.26. AMERICAN BOSCH BATTERY IGNITION EQUIPMENT. Further to our EFC3/T25.10.26, we have now investigated the quantities of the coil of one… | ||
| scan0103 | Analysis of the American Bosch Ignition Coil Type TC.30, detailing its construction and features. | ||
| View original record | EFC. WB.109. 5.11.26. AMERICAN BOSCH IGNITION COIL TYPE TC.30 AS USED ON RR. CHASSIS IN U.S.A. The special feature of this coil, apparently is that the secondary is wound next to the core and the… | ||
| scan0104 | Sending a photostat of a Delco coil for comparison with an American Bosch coil. | ||
| View original record | X4275 To R. from EFC. c. BJ. EFC1/T11.11.26. AMERICAN BOSCH BATTERY IGNITION X.4275. X4284 Further to our EFC2/T8.11.26, herewith we send you photostat copy of the Delco coil which is constructed on… | ||
| scan0105 | Letter to Mr. Hives regarding coils for the Phantom and enclosing a letter from the American Bosch Magneto Corporation. | ||
| View original record | X4275 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy1-E-12626 December 6th, 1926. Mr. E. W. Hives, Rolls-Royce, Ltd., Derby, England. Dear Mr. Hives: We enclose herewith copy of letter from the… | ||
| scan0106 | Letter from American Bosch Magneto Corporation detailing the resistance of TC-30 and TC-31 ignition coils. | ||
| View original record | AMERICAN BOSCH MAGNETO CORPORATION Springfield, Massachusetts December 2, 1928. Rolls-Royce of America, Inc., Springfield, Mass. Att: A. C. Ross, Pur. Agt. Gentlemen: Answering your letter of November… | ||
| scan0107 | Letter from the American to the UK branch clarifying the voltage of coils sent for a Phantom double head. | ||
| View original record | X4275 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. Oy7-E-121326 December 13, 1928. Rolls-Royce, Ltd., Derby, England. Attention of E.F.Clarke. Dear Mr. Clarke: Referring to your memo EFC2/T8.11.26… | ||
| scan0108 | Clarifying a discrepancy with received U.S.A. Bosch ignition system coils. | ||
| View original record | To OY. from EFC. X4275 EFC1/T22.12.26. RE U.S.A. BOSCH IGNITION SYSTEM. RECENTLY SENT TO US X4652 Referring to your OY1/E12626 of December 6th, we note your remark that TC.31 coils were sent to us on… | ||
| scan0109 | The dispatch and inspection of Delco-Remy and American Bosch distributor and contact breaker units. | ||
| View original record | To E. from EFC. X4275 EFC3/T14.127. DELCO-REMY BATTERY IGNITION CONTACT BREAKER & DISTRIBUTOR. X4284 Reference your E3/M12.1.27, we are making arrangements for this sample to be sent to you.… | ||
| scan0110 | Examination and comparison of Bosch and Delco-Remy contact breakers, focusing on the angular off-set of the breaker pad. | ||
| View original record | To R. from E. c. to BJ. EFC. Hs. BY. X4275 E1/M17.1.27. BOSCH AND DELCO REMY CONTACT BREAKERS. X4275 X4284 X8093 We have received and examined the above units, and what "hits one in the eye" about… | ||
| scan0111 | Comparison of battery ignition contact breakers, analyzing point mounting flexibility and contact pressure. | ||
| View original record | -2- Contd. DOTTED LINES SHOW POSSIBLE POSITION OF OFF-SET PAD. RR BATTERY IGNITION CONTACT BREAKER. SCALE - 2/1. EXISTING PAD Other points are as follows :- FLEXIBILITY OF POINT MOUNTINGS. There seems… | ||
| scan0112 | Cross-section diagram and explanation of an umbrella rotor designed for pure air circulation. | ||
| View original record | -3- Contd. This umbrella rotor looks more like a scheme than an accident made with the object of keeping up a circulation of pure air around the make and break, any gas formed at the H.T. points being… | ||
| scan0113 | The failure of an American Bosch ignition coil during a 10,000-mile bench test. | ||
| View original record | RR 238 (150 BKS.) (DB 451-8-12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. X4275 To: E.7.b Order No.: W.G.14. Customer's No.: X 4275 American Bosch ignition coil type TC 30 This coil, which is one of… | ||
| scan0114 | Continuation of an instruction sheet diagnosing an electrical fault in a distributor unit and coil. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To Order No. WB14 (contd) Customer's No. view of L.T. contact points and other components of the distributor unit.… | ||
| scan0115 | Instructions to investigate a sparking noise inside a coil by opening it up for examination. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. (3) To__________________19__ Order No. WB14 (Contd Customer's No.__________________ This theory was further evidenced by a characteristic sparking noise intermittently… | ||
| scan0116 | Comparison testing of ignition contact points from a U.S.A. Bosch distributor. | ||
| View original record | X4275 To E. from EFC. EFC2/T18.5.27. IGNITION CONTACT POINTS. Y4652 You will see from the general report EFC1/T18.5.27 that we are sending along the contact breaker lever and point of the U.S.A. Bosch… | ||
| scan0117 | Inspection and return of a Bosch ignition coil and a Lucas magneto. | ||
| View original record | X4275 To E. from EFC. EFCl/T17.5.27. BOSCH IGNITION COIL. X4275 With references to Mr. Royce's remarks concerning the special designs of the Bosch ignition coil, it has occurred to us that you might… | ||
| scan0118 | Despatch of a U.S.A. Bosch ignition coil type TC30 for inspection. | ||
| View original record | X4275 To Despatch Stores. c. D/BP. EFC5/T19.5.27. USA.BOSCH IGNITION COIL TYPE TC30. We are handing to the stores a box containing the parts of a U.S.A. Bosch ignition coil type TC.30 which we have… | ||
| scan0119 | Inspection report on a failed American Bosch ignition coil type TC30. | ||
| View original record | RR 238 (150 BKS.) (DB 451-8-12-24) MP 306975 Y4255 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.C. Order No.: WB15 Customer's No.: X 4275. American Bosch ignition coil type TC 30. This coil as described in… | ||
| scan0120 | Instructions (page 2) detailing the construction and design of a coil or transformer component. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To____________________ Order No._______________ Customer's No.__________ .....................19___ the fact that there… | ||
| scan0121 | Instructions on the winding and sealing of a primary and secondary coil using waxed paper and bitumen. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (3) To.......................................................19 Order No........... Customer's No........... The primary is… | ||
| scan0122 | Inspection report on a U.S.A. Bosch Ignition Coil, type TC.30. | ||
| View original record | X4275 To E. from EFC. C. R. EFC3/T19.5.27. U.S.A. BOSCH IGNITION COIL TYPE TC.30. We have now completed our opening up and inspection of the American Bosch coil referred to in our EFC1/T17.5.27, and… | ||
| scan0123 | Clarifying a mistake in sending a U.S.A. Bosch coil part. | ||
| View original record | To E. from EFC. X4275 EFC1/T20.5.27. We regret that we made a mistake in thinking that you had the U.S.A. Bosch type TC.30 coil at W.W, as we have since found this. It transpires it was only the… | ||
| scan0124 | Experimental record sheet for an American Bosch ignition coil. | ||
| View original record | Y4275 ELECTRICAL EXPERIMENTAL RECORD SHEETS Type TC30 [R.R. car] X. &No.:- 4275 American Bosch ignition coil as used on U.S.A. Date on. | Location. | Date off. | REMARKS. | Miles reading start. |… | ||
| scan0125 | Report comparing the performance of platinum versus tungsten interrupter points, coils, and condensers. | ||
| View original record | Cy2-E-61126. X4275 June 11th 1926. Mr. Basil Johnson, Rolls-Royce Ltd., London, England, { Copy for attention of Mr. F.H. Royce { " " " " " Works Committee { " " " " " Mr. Nadin. X.4652/4 X.2894 Dear… | ||
| scan0126 | The performance and testing of American Bosch and Delco coils and condensers. | ||
| View original record | Cy2-E-61126 -2- June 11th 1926. 2. Coils. On American Bosch ignitions it is usual for contacts to run 10,000 miles without attention, and 25,000 miles without replacement. The Bosch coil like the… | ||
| scan0127 | Observations of various ignition contact point samples, comparing platinum and tungsten types. | ||
| View original record | To OY. from EFC. c. R. c. BY. EFC5/T31.12.26. IGNITION CONTACT POINTS. X.4284/75. Further to our report EFC2/T24.12.26 and with particular and further reference to Mr. Olley's note OY2/E. 61126, our… | ||
| scan0128 | Analysis of ignition point degradation and performance comparisons across different systems. | ||
| View original record | -2- Contd. Sample in Envelope III. The evidence of the screw point in this case has been filed away. The evidence from lever point is that of the presence of oil. It will now be appreciated that in… | ||
| scan0129 | Standardization of tungsten points for battery ignition contact breakers. | ||
| View original record | To R. from EFC. c. BJ. E. c. Wor. Da. c. BY. Rg. X4275 EFC3/T4.3.27. X.2894.X.1818. X.4041.X.4275/84 BATTERY IGNITION CONTACT BREAKER AND CONTACT BREAKER POINTS Your reference FL/M23.2.27. Before… | ||
| scan0130 | Continued discussion on ignition system characteristics, focusing on current at break, condenser capacity, and platinum point life. | ||
| View original record | loss, and we should imagine this would be very good for platinum point life. To obtain a reduced value of current at break condenser capacity with a longer period of make, would necessitate as a… | ||
| scan0131 | Sending a Bosch battery ignition head and Lucas magneto, while requesting newer Lucas and Watford models. | ||
| View original record | X4275 To EFC. from E. E2/M18.6.27. ELECTRICAL MODELS. We are sending you under separate cover the Bosch battery ignition head, and Lucas magneto, as requested. We are sorry not to have sent them… | ||
| scan0132 | Order of precedence for experimental tests on battery ignition contact points. | ||
| View original record | To R. from EFC. c. BJ. BY. COPY 14775 EFCl/LG14.7.27. BATTERY IGNITION CONTACT POINTS Your Rl/M11.7.27. We have arranged the order of precedence of further experimental tests as follows :- NO. 27… | ||
| scan0133 | Continued status update on experimental tests for the Phantom, discussing delays with electrical parts and referencing previous reports. | ||
| View original record | Contd. -2- silence on the Phantom. We are now on the point of receiving the new rig referred to in our EFC5/T21.6.27 which will run three tests simultaneously and continuously. This has not been made… | ||
| scan0134 | Experimental comparison of a Delco-Remy lever and point with a U.S.A. Bosch system, and observations on a Robert Bosch ignition set. | ||
| View original record | X4275 Extract from EFCl/T26.8.27. X.4652. With the above we have, as stated, started the crucial experiment of Delco-Remy lever and point fitted to RR. contact breaker. This is also with tungsten… | ||
| scan0135 | Comparison of Delco-Remy and U.S.A. Bosch ignition systems. | ||
| View original record | To OY. from EFC. c. BY. V4275 EFC1/T29.8.27. KOMPARISON OF DELCO-REMY AND U.S.A. BOSCH IGNITION SYSTEMS. From the tests we have been doing on battery ignition contact points, we have formed the… | ||
| scan0136 | Comparing the performance of different ignition contact points and materials. | ||
| View original record | To R. from EFC. c. BJ. Wor. c. BY. Y4275 EFCl/T31.8.27. IGNITION CONTACT POINTS. X.2894. X.4652. X.4275. X.4284. Flexible copper connections giving as completely continuous a metallic connection as… | ||
| scan0137 | Standardising tungsten points over platinum, proposing further tests before a decision is made. | ||
| View original record | -2- Contd. Technically speaking, therefore, tungsten perhaps may be considered to show some advantage. Some time back, when the question of putting through a standardisation sheet for tungsten was… | ||
| scan0138 | Request to fit a new point to a U.S.A. Bosch ignition contact lever. | ||
| View original record | To RHC. from EFC. X4225 EFC4/T7.9.27. BOSCH IGNITION CONTACT LEVER AND POINT Herewith we hand to you a U.S.A. Bosch ignition contact lever with used point, together with a new point. Will you please… | ||
| scan0139 | Requesting the return of a U.S.A. Bosch Ignition contact breaker lever for further experimentation. | ||
| View original record | To RS. from EFC. X4275 EFC5/T7.9.27. U.S.A. BOSCH IGNITION. We would like to have back the U.S.A. contact breaker lever which was sent as a sample contact point experiment, together with contact… | ||
| scan0140 | The testing and standardization of tungsten ignition contact points. | ||
| View original record | To R. from EFC. c. BJ. BY. c. Wor. E. X4275 EFC1/T9.9.27. X42894 X4284 V4275 TUNGSTEN IGNITION CONTACT POINTS. A standardisation sheet for tungsten points is now being circulated for signatures. We… | ||
| scan0141 | Report comparing the performance and wear of different contact breaker points. | ||
| View original record | -2- Contd. The result of this test would appear to show the necessity of some flexibility for the screw point. On the Remy contact breaker itself the surface of the screw point stands .450" above the… | ||
| scan0142 | Follow-up memo requesting the return of a U.S.A. Bosch ignition contact lever for further experiments. | ||
| View original record | (C275) To RS. from EFC. EFC6/T6.10.27. BOSCH IGNITION CONTACT LEVER. We cannot trace your reply to our EFC5/T7.9.27 in which we asked you kindly to return the U.S.A. Bosch ignition contact lever, as… | ||
| scan0143 | From EFC to RHC chasing the completion of a Bosch contact lever needed for ignition experiments. | ||
| View original record | To RHC. from EFC. X4275 EFC7/T6.10.27. BOSCH IGNITION CONTACT LEVER AND POINT. We are anxiously awaiting the Bosch contact lever which we handed to you with our EFC4/T7.9.27 to be fitted with new… | ||
| scan0144 | Letter regarding the adoption of a new ignition coil without ballast. | ||
| View original record | X4275 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. RECEIVED OY4.R.102827 October 28th, 1927. Mr. E. F. Clarke, Rolls Royce Ltd., Derby, England. Dear Mr. Clarke: RE. IGNITION X3/29. X.4275 Mr.… | ||
| scan0145 | The specifications of an American Bosch ignition coil without ballast. | ||
| View original record | October 26th, 1927. RE: IGNITION COIL WITHOUT BALLAST X3/29 X4275 With reference to your memo of October 24th, re the above subject, I give below some details of the American Bosch Coil. If Mr. E.F.… | ||
| scan0146 | The construction and testing of an ignition coil without ballast, including tabulated results from a six-hour run. | ||
| View original record | 2 This sheet is split up from each end for a distance of 1-1/4", the slits being spaced 1/8" apart and the strips thus formed, are twisted through 30° approx. It would seem that the original intention… | ||
| scan0147 | Page from a test report detailing electrical and temperature measurements over time. | ||
| View original record | - 3 - TIME CURRENT TEMP. C. VOLTS ACROSS TERMINALS ROOM TEMP. 330 min. 4.1 74.5° 6.75 25° 360 " 4.1 75 6.75 24° The voltage at the terminal of the battery varied between 7.5 and 7.6. The coil is… | ||
| scan0148 | Graph of make-ratio speed curves for a U.S.A. Bosch contact breaker at two different gap settings. | ||
| View original record | MAKE RATIO .1 .2 .3 .4 .5 SPEED (r.p.m.) 400 800 1200 1600 1800 .010" GAP .020" GAP MAKE-RATIO SPEED CURVES OF U.S.A. BOSCH CONTACT BREAKER. H.E.W. 19-10-27 | ||
| scan0149 | Electrical experimental record sheet for an American Bosch ignition distributor. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS X4275 To U.S.A. R.R. car. X.&No:- 4275 American Bosch ignition distributor as fitted Date on. Location. Date off. REMARKS. Miles reading start. Miles reading… | ||
| scan0150 | Inquiry about the advantages of a reversed order of construction for a coil. | ||
| View original record | X4275 Extract from R2/M9.12.27. X.8710 Regarding the construction of the coil I shall be glad to know whether any great advantage is shown on test of the reversed order of building the coil, namely,… | ||
| scan0151 | Extract comparing two methods of coil construction and their respective advantages. | ||
| View original record | X4275 Extract from EFC4/T19.12.27. (4654) No great technical advantage is shown on test, neither does there appear to be any reason in principle for an advantage, either from - (1) The reverse order… | ||
| scan0152 | Summary of the chief advantages of American central H.T. coils. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12 24) MP 306975 X4275 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C. Order No.: WC60 Customer's No.: American central H.T. coils. We give below a summary of what we consider to… | ||
| scan0153 | Instruction note detailing the effects of coronal discharge on electrical insulation and metal components. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 19 was left on contact. ④ There should be less coronal effect as owing to the secondary being inside it can be more effectively insulated… | ||
| scan0154 | Instruction detailing the corrosion of H.T. spring terminals due to nitric acid deposited by ozone. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To__________________________________________________________19_____ Order No.__________________ Customer's… | ||
| scan0155 | Proposal to dismantle two American coils (Delco Remy and U.S.A. Bosch) to observe their construction. | ||
| View original record | [Handwritten] X 4275 EFC. X.4275. X.4284. 7.3.28. It might be advantageous at this stage to dismantle the two American coils we have (which incidentally have no secondary continuity) namely, Delco… | ||
| scan0156 | Examination of a post-war American Bosch ignition coil's construction and windings. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X4275 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.7.C. Order No. WD 90 Customer's No. 15 - 11 - 1929 American Bosch ignition coil Post war type. We have unwound… | ||
| scan0157 | Instructions and observations on component construction and condition. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To__________________________________19__ Order No. WD 90 (contd) Customer's No.________________ thickness. d) Layers… | ||
| scan0158 | Letter to Bosch Ltd. requesting a catalogue for ignition distributors and coils for 6-cylinder engines. | ||
| View original record | X6128 Hs/HEW7/AD. May 23rd, 1931. Messrs. Bosch Ltd. Upper Rathbone Place, London, W.1. Dear Sirs, Will you please send us a catalogue giving particulars of prices of Bosch up-to-date battery ignition… | ||
| scan0159 | Request for up-to-date particulars on Bosch battery ignition distributors and ignition coils for 6-cylinder engines. | ||
| View original record | X6128 Hoy/Ms. from Hs/HEW. Hs/HEW2/AD4.6.31. Will you please obtain for us up-to-date particulars of the Bosch battery ignition distributor and ignition coil for 6-cylinder engines. Hs/HEW. | ||
| scan0160 | Letter from Bosch regarding a request for information on battery ignition distributors and coils for a 6-cylinder engine. | ||
| View original record | X6128 TELEPHONE: MUSEUM 5600 (3 LINES) TELEGRAMS: ELECBBRIGHT, RATH, LONDON BOSCH LIMITED DIRECTORS: E. ROSSLYN MITCHELL, M.A., LL.B., J.P. P. J. A. CLAUSEN (British of Danish Origin) E. SCHWER… | ||
| scan0161 | Instructions and specifications for battery ignition systems, including wiring and cable fixing for four and six-cylinder engines. | ||
| View original record | PAGE 5 FIXING THE CABLES ON THE IGNITION DISTRIBUTOR AND IGNITION COIL Fig. 6, Fig. 7, Fig. 8, Fig. 9 A. HIGH TENSION CABLE 1. Strip cable ends for a distance of 16 mm (fig. 7a). 2. Push cable shoe… | ||
| scan0162 | The function, fitting, and timing of Ignition Coils TA and Ignition Distributors VA 4B and VA 6B. | ||
| View original record | (Document Metadata from left margin of Page 2) Edition VII Edition V I 4. I. 26 II 8. 6. 27 III15.12.27 [V25.10] Edition Stuttgart, 4th January 1928 Chr. Schock. (Page 2 Text) IGNITION COILS TA… | ||
| scan0163 | Letter to Bosch Ltd. requesting clarification on the primary winding of ignition coils for 6-cylinder engines. | ||
| View original record | X6128. Hs/HEW1/AD. June 11th, 1931. Messrs. Bosch Ltd. Upper Rathbone Place, London, W.1. Dear Sirs, We thank you for your letter of the 9th inst. ref. HGD/FT, giving particulars of ignition coils and… | ||
| scan0164 | Letter from Bosch Limited confirming the primary winding of their coils is situated inside the secondary winding. | ||
| View original record | X6128 TELEPHONE: MUSEUM 5600 (3 LINES) TELEGRAMS: ELECBRIGHT, RATH, LONDON BOSCH LIMITED HEAD OFFICES: UPPER RATHBONE PLACE LONDON, W.1. GLASGOW: 222, BOTHWELL ST., C.2 PHONE: CENTRAL 3154 TELEGRAMS:… | ||
| scan0165 | Letter to Messrs. Bosch Ltd. requesting an instruction booklet for dynamo and battery ignition units. | ||
| View original record | X6128 Hs/Wst.3/AD. October 24th, 1931. Messrs. Bosch Ltd. Upper Rathbone Place, London, W.1. X6128 X4562. Dear Sirs, With reference to the dynamo and battery ignition units we have recently obtained… | ||
| scan0166 | Letter from Bosch Limited regarding an instruction book for a Lighting and Starting system, and the unavailability of printed materials for new productions. | ||
| View original record | TELEPHONE: SHEPHERD'S BUSH 2080 (4 LINES) TELEGRAMS: ELECBRIGHT, ACT, LONDON X6128 BOSCH LIMITED RECEIVED 1931 OCT 29 HEAD OFFICES: LARDEN ROAD, ACTON LONDON, W.3. THE SOCIETY OF MOTOR MANUFACTURERS &… | ||
| scan0167 | Requesting another Bosch ignition coil of a similar type for continued testing. | ||
| View original record | Roy. from Hs/Wst. c. Ev/RD. X6128 Hs/Wst.1/AD3.11.31. BOSCH IGNITION COIL. Mr. Davis recently obtained for us a Bosch dynamo, ignition distributor and ignition coil of the latest design. We have sent… | ||
| scan0168 | Letter from Bosch concerning dynamo and coil ignition units, their wiring, and enclosed blueprints. | ||
| View original record | TELEPHONE: SHEPHERD'S BUSH 2080 (4 LINES) 86128 TELEGRAMS: ELECBRight, ACT, LONDON BOSCH LIMITED HEAD OFFICES: LARDEN ROAD, ACTON LONDON, W.3. GLASGOW: 222, BOTHWELL ST., C.2 PHONE: CENTRAL 3154… | ||
| scan0169 | Ordering an ignition coil, TE.12/2, from Bosch Limited in Stuttgart. | ||
| View original record | X6128: Hs/Wst. Roy/JT. 1/VR.17.11.31. Order 19790. It appears that the sketch recently passed on to Messrs. Bosch Limited, refers to the Ignition Coil TE.12/2 and makers are arranging to obtain one… | ||
| scan0170 | Price list for a set of Bosch ignition units and a regulator dynamo. | ||
| View original record | X6128 20.11.31. X.4562 X.6128 Prices paid by R.R. for set of Bosch ignition units and regulator dynamo were as follows :- Distributor £1.16.0d. Coil £1.0. 0d. Dynamo. £7.18.0d. Hs/Wst. | ||
| scan0171 | Graph plotting Make Ratio against Breakers Gap for a Bosch Distributor. | ||
| View original record | X6128 BOSCH DISTRIBUTOR MAKE RATIO 1.0 .9 .8 .7 .6 .5 BREAKERS GAP .001" .006 .008 .010 .012 .014 .016 .018 .020 | ||
| scan0172 | Graph of Make Ratio against Speed (RPM) for a Bosch Distributor with varying breaker gap settings. | ||
| View original record | [ "X6128", "MAKE RATIO", ".3", ".5", ".7", ".9", "1.0", "SPEED RPM", "250", "500", "750", "1250", "1500", "1750", "2000", "2250", "2500", "BOSCH DISTRIBUTOR", ".016 BREAKER GAP", ".020 BREAKER GAP",… | ||
| scan0173 | 500-hour endurance test for a Bosch Distributor V46 S174. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12 24) MP 306975 X6128. ROLLS-ROYCE LTD. INSTRUCTIONS. To WST Order No. Customer's No. Bosch Distributor V46 S174 A five hundred hour endurance test has been carried out on… | ||
| scan0174 | Merits of a battery-only ignition system over a magneto reserve for cars. | ||
| View original record | X6105 E. Hs. } FROM R. By. } (At Le Canadel) c. Sg. Wor. Rg. R2/M17.1.31. X.6098. Re. CAR WORK. X.6105. Mr.Hives points out that our magneto reserve is not of the value we imagined because we cannot… | ||
| scan0175 | Weighing the pros and cons of magneto ignition systems versus double battery ignition systems. | ||
| View original record | X6105 COPY. for E.T.C. R. FROM E. E2/M17.1.31. C. to SG. WOR. X6097 C. to HS. BY. X.6098 MAGNETO IGNITION. X.6105. Referring to HS1/MJ14131., we have at WW. for some time past been weighing up the… | ||
| scan0176 | Extract of a memo concerning the ignition system and timing gears for a Japan 3 left-hand chassis. | ||
| View original record | X6105 R. from E. c. Sg. Wor. c. Hs. Bv. Extract from E2/M20.1.31. JAPAN 3 - LEFT-HAND CHASSIS. Lec.2863 legislates for the extra ignition but now that we have your views on the P.2. chassis we assume… | ||
| scan0177 | Substitution of a double battery ignition system for the current battery and magneto arrangement on L.H. chassis. | ||
| View original record | HS X.6105 To Wor. from Sg. Copy to R. Hs. W. BY. re Car Work. Sg4/E21.1.31 I have just been reading R2/M17.1.31 relative to the substitution of double battery ignition for our present arrangement of… | ||
| scan0178 | Engine design choices, including crankshaft balance, ignition, governors, and connecting rod lengths. | ||
| View original record | E. HS. FROM R. (At Le Canadel.) C. to SG. WOR. BY. C. to HY. RHC. JAPAN 3. ENGINE Lec. 2853 X6105 R4/M29.1.31. X. 5770. X. 5030. X. 6105. This seems quite right. The only additional suggestions I can… | ||
| scan0179 | Design of a double battery ignition system for the Japan 3 model, including a sketch. | ||
| View original record | R. FROM E. C. to BG. WBN. C. to BY. EES. X.6105. El/M2.2.31. DOUBLE BATTERY IGNITION FOR JAPAN 3. We note your remarks with reference to the above. Our original idea in proposing this to HS. was to… | ||
| scan0180 | Example of double battery ignition on a new Stutz 8-cylinder engine. | ||
| View original record | X6105. R. from E. c. Sg. Wor. Hs. E1/M5.2.31. X.6105. BATTERY IGNITION+ Further to memo E1/M2.2.31 we find another example of double battery ignition on the new Stutz 8 cylinder. In this case also a… | ||
| scan0181 | Double battery ignition for Japan 3 & Phantom II models, with reference to competitor systems. | ||
| View original record | SG. FROM E. X6105 SECRET E/M7.2.31. Copy to WOR. Copy to HS. X 6105 DOUBLE BATTERY IGNITION ON JAPAN 3. & PHANTOM 2. In connection with the above we are asking R. to let us make one distributor head… | ||
| scan0182 | Unsuccessful investigation into a double battery ignition system for the Japan III and Phantom II models. | ||
| View original record | E. W. H. C. W. H. C. Hs. G. Sg. X.6105 PN.3/PH.11.2.31. Double Battery Ignition on Japan III and Phantom II Referring to your W/M7.2.31. I have been to see the Continental Engines at Messrs. Godman,… | ||
| scan0183 | Internal memorandum discussing the design and operation of a double battery ignition system. | ||
| View original record | X6105. To E. from EFC. c. Wor. c. Sg. Hs. EFC4/AM/7.2.31. X. 6105. DOUBLE BATTERY IGNITION. In thinking over the scheme suggested in E1/M2.2.31 and again referred to in E7/M7.2.31, it appeared to us… | ||
| scan0184 | Proposed ignition scheme with a twelve-point distributor. | ||
| View original record | EFC4/ADL7.2.31 contd. -2- then in the succeeding cycle (A) ignition would fire (b) sparking plug and (B) ignition (a) sparking plug. then if one ignition failed all the sparking plugs would still be… | ||
| scan0185 | Magneto ignition trouble on the 40/50 chassis due to increased compression ratios. | ||
| View original record | X6105 To R. from Hs/Wst. c. to Sg. Wor. c. to E. Da. c. to By. Hs/Wst.2/KT.9.6.32. X6098 MAGNETOS ON 40/50 CHASSIS. Sometime ago it was agreed that we should drop the magneto on the Phantom chassis… | ||
| scan0186 | List of six advantages of a dual battery ignition system over a magneto. | ||
| View original record | -2- Hs/Wst.2/KT.9.6.32. For reference we state below the six leading advantages of a dual battery ignition system over the magneto. (a) Deletion of the complicated and expensive interconnected oil… | ||
| scan0187 | Reasons for opposing the replacement of the magneto ignition with a dual battery system on the Phantom chassis. | ||
| View original record | Hs/Wst To R. from Sg. Copy to Mr. Hs/Wst. E. DE. [Struck through] DE. re Magnetos on 40/50 Chassis. Sg10/E10.6.32 X6105 X6098 X6105 [STAMP: RECEIVED 11 JUN 1932] Referring to Hs/Wst.2/KT.9.6.32 it is… | ||
| scan0188 | Extract from a list of suggestions to reduce the cost of the 25 HP chassis, specifically regarding the magneto. | ||
| View original record | X6114 9.2.31. Extract from list of suggestions made to reduce the cost of the 25 HP. chassis. Magneto. X.6063. X6114 X.6095. As the magneto on the 20/25 is carried as a standby ignition only, and is… | ||
| scan0189 | Proposal for a revised wiring scheme for the ignition indicator lamp. | ||
| View original record | To Sg. from EFC. c. E. c. Ry. Wor. X 6114 EFC6/ADL 2.2.31. X. 6109. JAPAN 3. ELECTRICAL SYSTEM. X 6114. Referring to El/M6.2.31 but with particular reference to item (4) "red lamp now to be used to… | ||
| scan0190 | Technical note on the wiring scheme for the red lamp ignition warning light. | ||
| View original record | X6114 BY. From Hs/Wst. c. BY/RD. c. E. Hs/Wst.8/MA.23. 3. 32. RED LAMP IGNITION WARNING LIGHT. We notice on the two schemes of R.R. dynamo voltage regulators the red lamp is arranged to be operated by… | ||
| scan0191 | Recommendation to proceed with experimental voltage regulator D.Sch.521 with an alteration to the warning light connection. | ||
| View original record | X6114 E. from Hs/Wst. Hs/Wst.3/AD2.4.32. R.R. VOLTAGE REGULATOR We recommend that we go ahead with D.Sch.521 experimentally with the one alteration that the red warning light contacts be deleted, the… | ||
| scan0192 | The two methods for operating the red lamp ignition warning light. | ||
| View original record | Hs/Wst. C - E. X6114. BY/RD5/W.15-4-32 Re :- Red Lamp Ignition Warning Light. With reference to Hs/Wst.8/MA.23-3-32, suggesting the warning light might be lit via the dynamo windings, we agree that it… | ||
| scan0193 | Experiments on battery ignition wiring tubes to investigate electrostatic disturbances. | ||
| View original record | X4119 To R. from EFC1 COPY. EFC1/AT22.5.19. c. CJ. Bn. E. c. Ey. Da. EP.EH. X.3129 - BATTERY IGNITION - WIRING TUBES. We have now made a number of experiments in connection with the bunching of wires… | ||
| scan0194 | Analysis of spark behavior and electrostatic effects in high tension wires connected to a coil. | ||
| View original record | EFCl/AT22.5.19. -2- Contd. connected to the coil. When in condition (1) above it is possible to get very tiny sparks on the subsidiary gaps if these gaps are shortened down to a small enough distance.… | ||
| scan0195 | Investigation into subsidiary sparks and the effects of earthing a tube acting as a condenser. | ||
| View original record | -3- Contd. induced in it of sufficient magnitude to enable one to draw sparks from it nearly 1/8" long. The outer tube is acting with the principal wire as a condenser, and the other wires are raised… | ||
| scan0196 | Insulated ignition tubes, earthing, and the prevention of subsidiary sparks and potential fire. | ||
| View original record | -4- Contd. We have tried an actual insulated ignition tube in the same way and we find the same results, making due allowance for the fact that the wires do not all pass right through the tube. We do… | ||
| scan0197 | Experiments on plain coil ignition and the effect of passing high tension cable through iron and copper tubes. | ||
| View original record | (To R). V4119 Extract from EFCl/T14.11.19. RE EXPERIMENTS ON PLAIN COIL IGNITION. We have made a number of bench experiments on battery ignition which we record below :- 2. Effect of passing high… | ||
| scan0198 | Test report continuation describing the electrostatic effect of earthing copper and iron tubes on spark length. | ||
| View original record | -2- Contd. If, however, the tube is earthed, the length of spark is considerably reduced owing to the capacity effect of the tube, also that it is reduced to the same extent for the copper tube as for… | ||
| scan0199 | Technical note summarizing experiments on high tension distributing wires within a tube and the effects of earthing. | ||
| View original record | To R. from EFC. c. CJ. Bn. E. c. By. EP. EH. X4119 EFC4/T24.11.19. X.3129- RE HIGH TENSION WIRES IN TUBE. X4119 The object of this note is to summarize the results obtained on the bench in connection… | ||
| scan0200 | The effects of metallic versus non-metallic tubing on ignition wiring and spark intensity. | ||
| View original record | -2- Contd. (1) To minimise the effects on the other wires we require to earth the two ends of the tube. (2) To keep the main spark up in intensity we require to have the tube insulated. Whichever… | ||
| scan0201 | Secret memo discussing the choice of ignition system for the 'V' series, prioritizing reliability over cost. | ||
| View original record | E. A. C. X4119 S E C R E T. R3/M2.2.25. To CJ. from R. c. to BJ. RG. c. Hs. E. c. Da. Wor. c. Ey. 'V' SERIES - ONE IGNITION. X.8680. X.4119 X.3714. I thank Wor. By and Hs. for their memos on the RR.… | ||
| scan0202 | Secret memorandum discussing an induction effect causing early ignition and popping in the carburetter for the EAC 'V' Series. | ||
| View original record | To R. from Hs. X.4119 He5/LG6.2.25. c. CJ. BJ. c. RG. E. c. Da. BY. c. Wor. S E C R E T. EAC 'V' SERIES IGNITION. X.8680.X.4119. X.3714. We have had very definite symptoms of induction effect causing… | ||
| scan0203 | Ignition wiring tubes and the effects of static induction. | ||
| View original record | To R. From EFC. c. CJ. Wor. c. E. Da. c. By. Rg. X4119 EFC1/T25.2.25. ++ X.4119. IGNITION WIRING TUBES - STATIC INDUCTION EFFECTS. X3714 References of previous reports on this subject are… | ||
| scan0204 | Analysis of ignition mis-firing issues, static induction, and the effects of using earthed versus insulated metal tubing for wiring. | ||
| View original record | Contd. -2- EFCl/T25.2.25. mis-firing trouble was less pronounced with the insulating or unearthed metal tube (always supposing the wires to be bunched). Now that we are alright with both our battery… | ||
| scan0205 | Static induction effect in the ignition system and a proposal for a bench experiment to investigate it. | ||
| View original record | Contd. -3- EFCl/T25.2.25. Now with regard to that portion of R's note R3/M2.2.25 which refers to this static induction effect, we are not clear as to his meaning in suggesting that exact… | ||
| scan0206 | The polarity of magneto and battery ignition systems and the potential for static induction. | ||
| View original record | Contd. -4- EFC1/T25.2.25. possible to run both ignition generators at the same time (which has not been done in the tests described), and while so doing, this spark gap would be observed for any… | ||
| scan0207 | Tests for static induction effects with high-tension wiring in a black fibre insulating tube on an EAC engine. | ||
| View original record | EFC. WA.109. Feb 12th 1925. STATIC INDUCTION EFFECTS WITH EAC. H.T. WIRING IN BLACK FIBRE INSULATING TUBE. Tests have now been carried out in connection with the above phenomenon, with the magneto and… | ||
| scan0208 | The effects of induced sparks between magneto and battery ignition wires. | ||
| View original record | -2- Contd. Upon earthing the battery ignition wires there there was no appreciable difference in the intensity and regularity of the magneto sparks on 5.5 mm. gaps in air. With the magneto… | ||
| scan0209 | Tests for static induction effects on ignition wires enclosed in a metal tube. | ||
| View original record | EFC. WA.110. 19.2.25. TESTS FOR STATIC INDUCTION EFFECTS WITH METAL TUBE. Further to WA.109 tests have been carried out with the battery and magneto ignition wires enclosed in a metal tube, an exact… | ||
| scan0210 | Test results comparing induced spark lengths from magneto and battery ignition systems with an earthed metal tube. | ||
| View original record | -2- Contd. II. With the tube earthed, the lengths of the induced sparks obtained were reduced to almost nothing, as shown :- Magneto wires sparking battery wires idle. No. Spark lengths. 1 .006" 2… | ||
| scan0211 | The performance of an 18000 turn coil within an earthed metal tube to reduce induced sparking. | ||
| View original record | -3- In an earthed metal tube. With the tall 18000 turn coil however, this reduction is not so noticeable, the initial spark energy being greater. On account of this and also as it is desirable to… | ||
| scan0212 | Tests concerning static induction effects in ignition wiring tubes. | ||
| View original record | R.R. 493A (40 H) (SL 42 12-7-23). J.H., D. EXPERIMENTAL REPORT. X4119 Expl. No. 4119. 441 REF EFC2/T26.2.25. To R. from EFC. c. CJ. Wor. c. Da. E. c. EY. RG. X.4119 - IGNITION WIRING TUBES - STATIC… | ||
| scan0213 | Investigation into increased static induction effects on H.T. wires from synchronized battery and magneto ignition sparks. | ||
| View original record | EFC. WA.112. 26.2.25. INVESTIGATION OF THE POSSIBILITIES OF INCREASED STATIC INDUCTION EFFECT ON H.T. WIRES, DUE TO OCCASIONAL SYNCHRONISM OF THE BATTERY AND MAGNETO IGNITION SPARKS. The present… | ||
| scan0214 | Continued discussion on induced effects from dual ignitions and spark synchronism in an engine. | ||
| View original record | -2- Contd. by 5 or 6 others in rapid succession, and the maximum gap necessary to avoid, for a period of 5 mins., a spark over, being .198". From these figures it will be seen that there is evidently… | ||
| scan0215 | Comparative tests on the static induction effect in Phantom II H.T. wiring tubes. | ||
| View original record | X4119. To E. from EFC. c. Ev. EFC1/AD26.3.30. X.3714. X.4119. PHANTOM II H.T. WIRING TUBES. STATIC INDUCTION EFFECT. We have now made comparative tests of the static induction effect in H.T. wires… | ||
| scan0216 | Experiment with all-bakelite ignition wiring tubes on a Phantom chassis. | ||
| View original record | X.4119 RHC. from EFC. c. Eft/Mr Brock. c. RB. EFC/AD1.4.30. X.3714. ALL BAKELITE IGNITION WIRING TUBES X.3513. X.4119. We are particularly anxious at this stage to be able to try the experiment on a… | ||
| scan0217 | Arranging for the fitting of all-bakelite ignition wiring tubes to experimental chassis 22-EX for testing purposes. | ||
| View original record | X.4119 RHC. from EFC. c. Hs/AJL. v. Mr.Brock. EFC4/AD8.4.30. X.3714. ALL BAKELITE IGNITION WIRING TUBES X.3513. X.4119. Further to our EFCl/AD4.4.30, we have now received these bakelite tubes and are… | ||
| scan0218 | Experiments testing bakelite ignition wiring tubes for static induction effects and temperature resistance. | ||
| View original record | X4119. To R. from EFC. c. Sg. c. Ev.. E. c. Da. Wor. EFC1/AD23.5.30. X.3714. X.4119. BAKELITE IGNITION WIRING TUBES. STATIC INDUCTION EFFECTS. Experiments have been made both on the bench and on the… | ||
| scan0219 | Report comparing the effects of heat on Bakelite and Vulcanite tubing materials used for wiring. | ||
| View original record | EFC/AD23.5.30. contd. -2- After one hour at 200°C. the colour of the bakelite changed to dark brown but otherwise there was no appreciable effect. Upon raising the temperature to 250°C. cracking… | ||