Rolls-Royce Archives
| Identifier | Entry | ||
| Scan001 | Seeking an opinion on the use of Ebonite Separators for battery plates. | ||
| View original record | R.R. 253. a (100 T.) (S.P. 100, 24-10-18) G. 2244 To Ck. from Bn. X4655 Bn31/W151019. X.60ya When I saw Mr. Northey some time ago he pointed out that in his opinion Ebonite Separators for Battery… | ||
| Scan002 | Responding to a query about the use of ebonite versus wooden battery plate separators. | ||
| View original record | X.664 X4655 To Bn. from EFC. EFC3/T20.10.19. RE BATTERY PLATE SEPARATORS X.664. X.607. In answer to your Bn31/W15.10.19, we have not much experience of ebonite separators but we imagine that they… | ||
| Scan003 | Letter from Peto & Radford concerning the supply of more durable Ebonite Separators for future batteries. | ||
| View original record | X.4654P Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES, PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889. PETO &… | ||
| Scan004 | Forwarding a letter regarding the use of ebonite separators for P & R batteries. | ||
| View original record | X 4655P To BY. from EFC. EFC1/T3.12.23. RE EBONITE SEPARATORS FOR P & R BATTERIES. Please find attached copy of a letter I have received from Mr. Minchin, with regard to the ebonite separators which… | ||
| Scan005 | Letter from accumulator manufacturers Peto & Radford, regarding a request for examples of chafed Ebonite Sheets. | ||
| View original record | Works, Dagenham Dock, Essex. *2655 TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889. PETO &… | ||
| Scan006 | Extract of a letter to Peto & Radford regarding the thickness of ebonite separators for batteries. | ||
| View original record | 14655 Extract from EFC2/T27.4.25. (Letter to Messrs. Peto & Radford). Re Thickness of Ebonite Separators for Batteries supplied to R.R. ---- "Hereby we wish to confirm our agreement with the… | ||
| Scan007 | Letter from a supplier discussing the feasibility and cost of increasing the thickness of ebonite separators. | ||
| View original record | X. 4655 P. Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889. PETO &… | ||
| Scan008 | Letter to Messrs. Peto & Radford discussing the required thickness of battery separators based on wear measurements. | ||
| View original record | X4655 EFCl/T. 2nd. May, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, Answering your letter of yesterday's date, re separators, at the moment we are of the opinion… | ||
| Scan009 | Letter regarding samples of an ebonite battery separator from the Exide Co. and a proposal for a different perforation method. | ||
| View original record | -2- Contd. We enclose four portions of the same separator taken from one of these batteries, and also a sample portion of an ebonite separator which we received from the Exide Co., and which we had… | ||
| Scan010 | Letter from Peto & Radford regarding samples of ebonite separators. | ||
| View original record | X 4655 P Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO &… | ||
| Scan011 | Letter from accumulator manufacturers Peto & Radford concerning a report and the examination of batteries. | ||
| View original record | X. 4414P Works. Dagenham Dock. Essex TELEPHONE VICTORIA 3667. 4 LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO &… | ||
| Scan012 | Letter from P&R Accumulators discussing ebonite separator samples and comparing them to an Exide equivalent. | ||
| View original record | X 4655 D Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4-LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO &… | ||
| Scan013 | Letter from accumulator manufacturer Peto & Radford discussing the specifications and pricing of ebonite separation material. | ||
| View original record | X 444T X 4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889 PETO… | ||
| Scan014 | Letter discussing the thickness and cost of ebonite separators for batteries. | ||
| View original record | Y44HCP X4655 EFC4/T. 27th May, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, Yours M/5 of the 26th inst, dealing with the question of thicker ebonite separators for… | ||
| Scan015 | Letter discussing the failure of experimental batteries with and without ebonite separators. | ||
| View original record | (2) Contd. idea as to just what this extra cost would be, and we trust that you will be able to supply this information at your convenience. In the meanwhile, seeing that we have two other… | ||
| Scan016 | Letter from accumulator manufacturers Peto & Radford concerning samples of different material thicknesses. | ||
| View original record | X 44147 X4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO &… | ||
| Scan017 | Letter from Pritchett & Gold and E.P.S. Company Ltd. regarding samples of perforated ebonite separators. | ||
| View original record | X4414P X4655 DIRECTORS. SIR ARCHIBALD G. GOLD. F C GRAHAM MENZIES. G R N MINCHIN. WILLIAM PETO. C.R.D. PRITCHETT. T.W. PRITCHETT. Telephone No RAINHAM 34. Telegrams "PRITCHETT, DAGENHAM" CODES USED:… | ||
| Scan018 | Investigation of sample ebonite battery plate separators and discussion of new specifications with a supplier. | ||
| View original record | X4665 X.4414P. 10.6.25. The sample ebonite battery plate separators sent by Messrs. Peto & Radford have been investigated. The thinner sample representing standard is found to be .5 mm. (.020") and to… | ||
| Scan019 | Letter to Peto & Radford regarding an investigation into the thickness and perforation of ebonite battery separator samples. | ||
| View original record | X.4655 EFCl/T. 17th June, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, With reference to our recent correspondence upon the question of ebonite separators for the P &… | ||
| Scan020 | Letter to Messrs. P & R regarding the specifications for perforated ebonite separators. | ||
| View original record | Messrs. P & R. -2- Contd. perforating apparatus which would make the cost of the thicker separators (perforated like standard) more than at present. Contrary to anticipation, however, on making an… | ||
| Scan021 | Letter from accumulator manufacturers Peto & Radford regarding ebonite separators, suggesting a meeting to resolve the issue. | ||
| View original record | X4653 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889. PETO &… | ||
| Scan022 | Letter to Messrs. Peto & Radford regarding the question of ebonite separators and postponing a visit. | ||
| View original record | N4655 EFC2/T. 25th June, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, We thank you for yours M/5. of the 20th inst., with reference to the question of ebonite… | ||
| Scan023 | Letter from Peto & Radford regarding a proposed works visit to discuss ebonite separators. | ||
| View original record | X.4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan024 | Letter from Peto & Radford regarding a proposed appointment to discuss ebonite separators. | ||
| View original record | X46515 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan025 | Letter to Messrs. Peto & Radford arranging a visit to discuss ebonite separators. | ||
| View original record | X46557 EFCL/T. 10th July, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, Answering yours ref. M/5 of the 9th inst. with reference to the proposed appointment at your… | ||
| Scan026 | Letter from Peto & Radford regarding the arrangement of a meeting with Mr. Fowler-Clark. | ||
| View original record | X4655+ Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan027 | Letter to Messrs. Peto & Radford concerning the thickness of perforated ebonite separator samples. | ||
| View original record | X4655P EFCl/LG. 17th. July 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London S.W.1. Dear Sirs, For the attention of Mr. Minchin. Further to EFCl/T. of the 17th.ult., and to our visit of… | ||
| Scan028 | Letter from accumulator manufacturers Peto & Radford regarding separators and ebonite suppliers. | ||
| View original record | X. 4655P. Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4-LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P& R Accumulators. Established 1889 PETO &… | ||
| Scan029 | Letter from Peto & Radford concerning the increased thickness and cost of ebonite battery separators. | ||
| View original record | X.4655 COPY OF LETTER RECEIVED FROM:- PETO & RADFORD, 50, GROSVENOR GARDENS, LONDON, S.W.1. Ref. M/7. 25th August, 1925. Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, With regard to the Conference held… | ||
| Scan030 | Letter from P & R Co. discussing costs for tools and a surcharge for thicker battery separators. | ||
| View original record | From P & R Co. ------------ -2- Contd. Also they want £60 down for tools to produce the thicker separators. With the price of lead now nearly £40 per ton we cannot really afford any extra costs, but… | ||
| Scan031 | Letter acknowledging receipt of correspondence regarding ebonite separators. | ||
| View original record | X. 4655 P. EFC6/T. 26th August, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, We have to acknowledge receipt of your letter ref. M/7 of 25th inst., dealing with the… | ||
| Scan032 | Proposal to increase the thickness of ebonite separators for 40/50 and 20 HP batteries to improve their lifespan. | ||
| View original record | To Wd. from EFC. X4655 EFC2/T28.8.25. X.4655. EBONITE SEPARATORS FOR STANDARD 40/50 and 20 HP. BATTERIES. Please find attached two copies of a letter which has been received from Messrs. Peto &… | ||
| Scan033 | The thickness of ebonite separators in Exide batteries and comparisons with those from P & R. | ||
| View original record | EFC2/T28.8.25. -2- Contd. At the conference, the pressure which I brought to bear upon them on the question of the division of the extra cost has resulted in the present offer which to me appears very… | ||
| Scan034 | Follow-up query regarding thicker ebonite separators for standard 20 HP & 40/50 HP chassis batteries. | ||
| View original record | X4633 To Wd. from EFC. EFC3/T21.9.25. X.3655. THICKER EBONITE SEPARATORS FOR STANDARD 20 HP. & 40/50 HP. CHASSIS BATTERIES. I should be glad to know the position in respect of my EFC2/T28.8.25. EFC. | ||
| Scan035 | The production of batteries with thicker separators by Peto & Radford. | ||
| View original record | X4655 COPY (from Wd.) EFC. from Roy. c.to Wd. ROY6/MG21.9.25. Batteries. You will be pleased to hear Messrs. Peto & Radford are proceeding with production of Batteries with the thicker type… | ||
| Scan036 | Letter from a supplier regarding a new type of thicker ebonite separator for approval. | ||
| View original record | X 4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889. PETO &… | ||
| Scan037 | Letter of approval for new thicker ebonite separators to be used in batteries for the chassis. | ||
| View original record | Y4655 EFCl/T. 16th October, 1925. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. For the attention of Mr. G.R.N. Minchin. Dear Sirs, Re New Type Thicker Ebonite Separators. Answering… | ||
| Scan038 | Calculations comparing the hole area of various ebonite separator samples. | ||
| View original record | X4651 16.10.25. HOLE AREA OF EBONITE SEPARATORS. The original thinner sample, representing (.4 mm) standard, is 100 x π/4 x (.068)^2 = .363 . The thicker (1 mm) sample referred to on sheet dated… | ||
| Scan039 | Letter from Peto & Radford regarding a drawing and the production of a thicker separator for batteries. | ||
| View original record | X4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P& R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan040 | Query about the incorporation of thicker Ebonite Separators from Messrs. Peto & Radford. | ||
| View original record | X4655 EFC. from ROY. ROY8/MG23.10.25. I understood we agreed the incorporation of the thicker Ebonite Separators by Messrs. Peto & Radford, and asked them to go ahead with same. In a letter to hand… | ||
| Scan041 | Confirming no technical query prevents the inclusion of thicker ebonite separators in P & R. batteries. | ||
| View original record | X. 4655. To ROY. from EFC. EFC4/T27.10.25. X. 4655. PETO & RADFORD BATTERY - EPONITE SEPARATORS. Answering your ROY8/MG23.10.25, I do not know of any technical query which prevents the inclusion of… | ||
| Scan042 | Performance and potential use of threaded rubber separators for batteries. | ||
| View original record | X3839 To Wd. from EFC. EFC4/T5.1.26. THREADED RUBBER SEPARATORS FOR BATTERIES. Our experience with threaded rubber separators in Willard and CAV-Willard batteries has been such as to indicate that… | ||
| Scan043 | C.A.V. battery failure and a proposal to test threaded rubber separators for comparative purposes. | ||
| View original record | Contd. -2- EFC4/T5.1.26 We have recently opened up a C.A.V. battery fitted with these separators. This battery did not actually a fail in the frequent way of short circuiting due to paste, or… | ||
| Scan044 | Continued discussion on positive plate disintegration in batteries, suggesting improvements to separator placement. | ||
| View original record | EFC4/T5.1.26. -3- Contd. a comparatively easy matter for positive plate disintegration to take place. It would appear that these positive elements would have lasted longer if the flat surface of the… | ||
| Scan045 | Letter discussing the use of threaded rubber separators for batteries instead of wood and ebonite. | ||
| View original record | X3839 EFC. from Wd. c. to By. Wd5/NJ11.1.26. Threaded Rubber Separators for Batteries. The remarks in yours EFC4/T5.1.26 and EFC5/T5.1.26 are very interesting. I wrote the Chloride Co. and Peto &… | ||
| Scan046 | Threaded rubber separators for batteries and arranging a meeting. | ||
| View original record | To Wd. from EFC. X3839 EFC2/T12.1.26. X.3839 - THREADED RUBBER SEPARATORS FOR BATTERIES. Answering your Wd5/NJ11.1.26, as far as I know, it will be quite convenient for me to see Mr. McKinnon with you… | ||
| Scan047 | Threaded rubber separators for batteries and correspondence with suppliers. | ||
| View original record | EFC. from Wd. c.to By. X3839 Wd1/NJ14.1.26. X.3839 - Threaded Rubber Separators for Batteries. Referring to mine Wd5/NJ11.1.26 and EFC2/T12.1.26, we have written the Chloride Electrical Storage… | ||
| Scan048 | Letter from Peto and Radford discussing the supply and technical issues of threaded rubber separators for accumulators. | ||
| View original record | COPY OF LETTER FROM:- PETO AND RADFORD., 50, GROSVENOR GARDENS, LONDON. S.W.1. Your Ref. Wd14/NJ8126. Our Ref. WP/HA 131. January 13th 1926. Messrs. Rolls-Royce Limited., Nightingale Road, DERBY. Dear… | ||
| Scan049 | Typed letter from PETO AND RADFORD discussing the supply and configuration of accumulators. | ||
| View original record | Messrs. Rolls-Royce Ltd. Continuation Sheet. 13.1.26. road where things are liable to some neglect here and there then we think it advisable on our part to point out these matters to you. However we… | ||
| Scan050 | Potential disadvantages of using threaded rubber separators in batteries. | ||
| View original record | To Wd. from EFC. X.3839 - THREADED RUBBER SEPARATORS. Answering your Wdl/NJ14.1.26, we shall look forward to having this battery and the results to be obtained therefrom. As regards the suggested… | ||
| Scan051 | Battery design, performance, and material degradation, with a focus on P&R batteries. | ||
| View original record | Contd. -2- EFC7/T15.1.26. hand, if the ribbed surface faces the plates the active material can fall away more easily. It appears to us that the great thing that is wanted in batteries now is to find… | ||
| Scan052 | Internal memorandum concerning threaded rubber separators for batteries. | ||
| View original record | X3839 EFC. from Wd. C. to By. 21st Jan.1926. Wd5/NJ21126. X.3839 - Threaded Rubber Separators for Batteries. I confirm mine Wd1/NJ14.1.26 and am in receipt of yours EFC7/T15.1.26 for communication to… | ||
| Scan053 | Supply and specifications of threaded rubber separators for batteries. | ||
| View original record | EFC. from Wd. c. to By. X3839 Wd3/NJ27.1.26. X.3839 - Threaded Rubber Separators for Batteries. I confirm mine Wd5/NJ21.1.26. We have not yet received a reply from Peto & Radford to the remarks… | ||
| Scan054 | Letter from The Chloride Electrical Storage Co. Ltd. confirming the supply of a standard battery for a 40/50 chassis. | ||
| View original record | Copy of letter from:- THE CHLORIDE ELECTRICAL STORAGE CO.LTD., Clifton Junction, Nr.Manchester. ref.- ECM/EH. 26th January 1926. Messrs.Rolls-Royce Ltd., Derby. Dear Sirs, For attention of… | ||
| Scan055 | Letter discussing the orientation of threaded rubber separators within battery cells. | ||
| View original record | EFC.from Wd. c.to By. X 3839 Wd3/NJ29.1.26. X.3839 - Threaded Rubber Separators for Batteries. I confirm mine Wd3/NJ27.1.26 and attach hereto copy of letter from Peto & Radford, dated 28th inst. in… | ||
| Scan056 | Letter from Peto & Radford discussing the properties and testing of threaded rubber separators. | ||
| View original record | XJ839 Copy of letter received from:- Messrs Peto & Radford. 50, Grosvenor Gardens, LONDON. S. W. 1. Wd/14/MJ8126. WP/HA 281. January. 28th, 1926. Messrs. Rolls-Royce Limited., Nightingale Road, DERBY.… | ||
| Scan057 | Experiment on the arrangement of threaded rubber separators within batteries. | ||
| View original record | To Wd. from EFC. x3839 EFC4/T1.2.26. X.3839 - THREADED RUBBER SEPARATORS FOR BATTERIES. Answering your Wd3/NJ29.1.26, owing to the fact that I shall not feel convinced about the impropriety of making… | ||
| Scan058 | Letter from a battery manufacturer detailing modifications to the active material in plates and separators. | ||
| View original record | DIRECTORS: SIR ARCHIBALD. G. GOLD. F. C. GRAHAM MENZIES. G. R. N. MINCHIN. WILLIAM PETO. C. R. D. PRITCHETT. T. W. PRITCHETT. Telephone No RAINHAM 34. Telegrams "PRITCHETT, DAGENHAM." CODES USED:… | ||
| Scan059 | Letter from Pritchett & Gold and E.P.S. Co. Ltd. discussing battery separator performance experiments. | ||
| View original record | -2- E. Fowler Clark Esq. 2nd February, 1926. Our experiments Have also shown that wood separators ribbed both sides give a better performance at high discharge rates than separators only ribbed one… | ||
| Scan060 | Letter to Mr. K. Preston of Peto & Radford regarding battery modifications, specifically ebonite thickness and separators. | ||
| View original record | X7653 EFC2/T. c wd c Roy 6th February, 1926. Mr. K. Preston, Messrs. Peto & Radford, Dagenham Dock, Romford, Essex. Dear Mr. Preston, X4677P X4653 I have your letter ref. KP/4. of the 2nd. inst. In… | ||
| Scan061 | Marking system for threaded rubber separators in an experimental battery. | ||
| View original record | V.839 EFC. from Wd. Wd9/K10.2.26. X.3339.THREADED RUBBER SEPARATORS FOR BATTERIES. In reply to EFC4/T1.2.26. Peto and Radford have written us as follows:- "We are sorry to say we cannot comply with… | ||
| Scan062 | Letter from a battery manufacturer discussing modifications to reduce charging potential difference. | ||
| View original record | PRITCHETT & GOLD and E.P.S. COMPANY, LIMITED. WITH WHICH IS INCORPORATED THE BUSINESS OF PETO & RADFORD. MANUFACTURERS OF STORAGE BATTERIES. DIRECTORS SIR ARCHIBALD G. GOLD. F.C. GRAHAM MENZIES.… | ||
| Scan063 | Letter from accumulator manufacturers Peto & Radford regarding progress on R.R.11 cells. | ||
| View original record | Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 8 LINES. PRIVATE BRANCH EXCHANGE TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan064 | Letter discussing a proposal to change ebonite thickness and the decision to revert to a .4 mm specification. | ||
| View original record | EFCl/T. 15th February, 1926. Mr. K. Preston, Messrs. Peto & Radford, Dagenham Dock, Romford, Essex. Dear Mr. Preston, I have yours ref. KP/5 of the 11th inst. and have noted your remarks. I certainly… | ||
| Scan065 | Postscript discussing the reduction of ebonite thickness and its effect on internal resistance. | ||
| View original record | Contd. -2- 15.2.26. P.S. On actually referring to your letter of the 2nd. inst. I find that your reason for the reduction of the thickness of the ebonite is mainly that it would reduce the internal… | ||
| Scan066 | Letter from a battery manufacturer discussing the performance of different ebonite and wood separator combinations. | ||
| View original record | DIRECTORS SIR ARCHIBALD. G. GOLD. F. C. GRAHAM MENZIES. G. R. N. MINCHIN. WILLIAM PETO. C.R.D. PRITCHETT. T.W. PRITCHETT. Telephone No. RAINHAM 34. Telegrams "PRITCHETT, DAGENHAM." CODES USED:… | ||
| Scan067 | Letter discussing battery performance improvements and material specifications. | ||
| View original record | - 2 - E. Fowler Clark Esq. 17th February, 1926. a lower charging P.D. and a greatly improved performance at high rates of discharge - an increase in volume of electrolyte amounting to 20% more than… | ||
| Scan068 | Letter discussing a compromise on the thickness of ebonite separators. | ||
| View original record | X4655 EFC3/T. 22nd February, 1926. Mr. C.R.N.Minchin, 50, Grosvenor Gardens, London, S.W.1. X4655 X4617P Dear Mr. Minchin, Thank you for your letter of the 12th inst., informing me that you are back.… | ||
| Scan069 | Letter discussing a .5mm dimensional compromise and the ribbing of wood separators with the company Exide. | ||
| View original record | -2- Contd. Altogether I think you will agree that .5 mm. is the right compromise from many points of view, and particularly as it brings us into line with what the Exide are actually doing, though I… | ||
| Scan070 | Appropriate thickness for Ebonite separators in Peto & Radford batteries. | ||
| View original record | EFC. C.Wd. BY2/H. 22.2.26. PETO & RADFORD BATTERIES. Wd. has handed me a copy of your letter of the 6th inst. written to Messrs Peto & Radford. I am of the opinion that we should have the same… | ||
| Scan071 | Querying a decision on the thickness of ebonite battery separators following correspondence with a supplier. | ||
| View original record | EFC. from ROY. ------------ Batteries --------- X465-5 ROY11/MG/23.2.26 ---------------- Peto & Radford write:- "We are in receipt of yours of the 15th inst., ROY14/MG. "We do not think it is quite… | ||
| Scan072 | Routine treatment of a car lighting and starting battery, including charge and discharge data. | ||
| View original record | X. 38.39. ROUTINE TREATMENT OF CAR LIGITING & STARTING BATTERIES. Date:- 3-3-26 Battery under treatment :- P & R TR11 Rated capacity:- 75 amperes.hours. Received charged or uncharged :- uncharged.… | ||
| Scan073 | Log of battery charging and testing, detailing a second charge, density readings, weight, and cell densities. | ||
| View original record | -2- Contd. (6) Second charge :- Date. Amperes. from to hours amp.hrs. 8.0 2.0 5.30 3.5 28 9-3-26 8.0 8.0 5.30 9.5 76 10-3-26 8.0 8.0 12.0 4.0 32 11-3-26 _____ ____ ____ _____ _____ Total 136 (7)… | ||
| Scan074 | Test report on battery performance, detailing charging cycles, cell densities and ampere-hours. | ||
| View original record | -3- (13) Third charge equivalent to average current of 8.0 amperes for 15.0 hours. i.e. ampere-hours = 120.0 (14) Cell densities. (1) 1260 (4) 1260 (2) 1260 (5) 1260 (3) 1260 (6) 1260 F+ cells +… | ||
| Scan075 | Letter from Peto & Radford regarding a 'separation matter' and arranging a conference. | ||
| View original record | Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan076 | Extract from a letter from Messrs. Peto & Radford. | ||
| View original record | X4655 Extract from letter M/5. 15.3.26 from Messrs. Peto & Radford. X.3858. "I am sorry I did not write you last week about our deliberations as promised, but we are not quite through with them. Mr.… | ||
| Scan077 | Letter to Mr. G.R.N. Minchin of Messrs. Peto & Radford regarding the specifications of battery ebonite separators. | ||
| View original record | X4655 Extract from EFC2/T. 16th March 1926. To Mr. G.R.N.Minchin.(Messrs. Peto & Radford) Thank you for your letter of the 15th inst. XJ858 In connection with batteries - you seem to be considering a… | ||
| Scan078 | Letter from accumulator manufacturers Peto & Radford regarding the thickness and design of battery separators for 40/50 HP cars. | ||
| View original record | X.4655. Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 3 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO &… | ||
| Scan079 | Letter from Peto & Radford to E. Fowler Clark regarding altering wood separators in a cell. | ||
| View original record | PETO & RADFORD. CONTINUATION 2. E. Fowler Clark Esq., 18th March 1926. so doing we are not sacrificing anything in the life of the cell. We propose altering at once the arrangement of the ribbing on… | ||
| Scan080 | Letter to a supplier regarding the incorrect thickness of ebonite battery separators. | ||
| View original record | X4655 c. Wd. By. EFCl/T. 19th March, 1926. Messrs. The Chloride Elec. Storage Co. Ltd., Clifton Junction, Nr. Manchester. For the attention of Mr. E.C. McKinnon. Dear Sirs, The thickness of the… | ||
| Scan081 | Letter concerning the thickness specifications of ebonite battery separators and arranging an inspection. | ||
| View original record | X 4655 ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY THE Chloride ELECTRICAL STORAGE COMPANY LIMITED. TELEPHONES - PENDLETON 481 (6 LINES) TELEGRAMS: CHLORIDIC, PENDLEBURY. CODES: BENTLEY'S,… | ||
| Scan082 | Letter concerning the performance and thickness of ebonite separators in car batteries. | ||
| View original record | X4655 c. wd. EFCl/T. 30th March, 1926. Mr. G.R.N.Minchin, Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, Re Ebonite Separators. Referring to yours of the 18th inst. We… | ||
| Scan083 | Letter from Peto & Radford discussing proposed modifications to battery separators. | ||
| View original record | X4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 9 LINES PRIVATE BRANCH EXCHANGE TELEGRAMS: CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan084 | Continuation of a letter from Peto & Radford discussing cell separation. | ||
| View original record | PETO & RADFORD. CONTINUATION 2. E. Fowler Clark Esq., 15th April 1926. and if the cells with .4 m/m, break down owing to internal shorts before the others I shall return to the subject of thicker… | ||
| Scan085 | Letter to Mr. G.R.N. Minchin discussing battery comparisons, a battery in Commander Briggs' car, and the design of separators regarding electrolyte levels. | ||
| View original record | X4655 EFCL/T. 16th April, 1926. Mr. G.R.N. Minchin, . 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, X4617P Thank you for your three letters of yesterday's date. It is quite true, as you say,… | ||
| Scan086 | Letter discussing electrolyte depth, ebonite separation thickness, and issues with a Phantom's side lamps. | ||
| View original record | EFCL/T. -2- Contd. Then again, we must have a sufficient depth of electrolyte for hydrometer readings. These are my comments on that particular question. In regard to the thickness of the ebonite… | ||
| Scan087 | Letter from a battery manufacturer discussing the specifications of ebonite separators in batteries. | ||
| View original record | X4655 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 5 LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD… | ||
| Scan088 | Letter clarifying that a recurring issue with side lamps was due to faulty bulbs, not the car's electrical system. | ||
| View original record | PETO & RADFORD. CONTINUATION 2. E. Fowler Clark Esq., 22nd April 1926. With regard to your question about how is my car behaving. It is behaving extraordinarily well. I ought to have told you that I… | ||
| Scan089 | From ROY to EFC regarding the status of separators for Peto & Radford batteries. | ||
| View original record | X4655 EFC. from ROY. ROY7/MG28.4.26 Batteries What is the present position regarding separators on the Peto & Radford Batteries please? You will recollect some time ago it was agreed they should fit… | ||
| Scan090 | Correct thickness of ebonite separators for P & R and Exide batteries. | ||
| View original record | To ROY. from EFC. X4655 EFC1/T29.4.26. RE EBONITE SEPARATORS. Answering your ROY7/MG28.4.26, it is arranged that the .4 mm. separators will continue to be fitted on both P & R and Exide batteries. The… | ||
| Scan091 | Graph comparing battery cell performance showing 150 AMP discharge at a constant load on RRII. | ||
| View original record | 150 AMP DISCHARGE AT CONSTANT LOAD ON RRII INITIAL TEMPERATURE OF ELECTROLYTE 68°F VOLTS MINUTES PER CELL WOOD SEPARATORS RIBBED BOTH SIDES AND 0.4 M/M PERFORATED EBONITE SEPARATORS PER CELL WOOD… | ||
| Scan092 | Graph showing voltage drop over time during a 150 Amp discharge at a constant load on an RR11 battery. | ||
| View original record | 150 AMP DISCHARGE AT CONSTANT LOAD ON RRII INITIAL TEMPERATURE OF ELECTROLYTE 68°F VOLTS MINUTES P&R CELL WOOD SEPARATORS RIBBED ONE SIDE AND C. 4 M/M PERFORATED EBONITE SEPARATORS P&R CELL WOOD… | ||
| Scan093 | Confirming the dispatch of a battery with threaded rubber separators for testing. | ||
| View original record | EFC. from Wd. s. to Py. s. to CO/AW. X3839 Wd8/NJ27.5.26. X.3839 - Threaded Rubber Separators for Batteries. I confirm mine Wd3/NJ27.1.26. Today we have received a letter from the Chloride Electrical… | ||
| Scan094 | Experiments on Phantom batteries, focusing on variations in grids and threaded rubber separators. | ||
| View original record | X3839 To R. from EPC. c. BJ. PN. c. Da. E. EFC3/T28.5.26. X 4617 X3839 RE PHANTOM BATTERY. Reference your RB/M4.5.26 we understood that a scheme for the separation of the battery into two portions is… | ||
| Scan095 | Faulty Exide battery that has leaked acid, suspecting blocked vents as the cause. | ||
| View original record | X3839 To Wd. from EFC. EFC3/T31.5.26. X.3839 - EXIDE BATTERY WITH THREADED RUBBER SEPARATORS. We have duly received this battery, but on standing over the week-end we have found that this has expelled… | ||
| Scan096 | Correspondence regarding defective Exide battery vent stoppers and their replacement by the Chloride Electrical Storage Co. Ltd. | ||
| View original record | EFC. from Wd. X. 3839. Wd1/NJ/7.6.26. X.3839 - Exide Battery with Threaded Rubber Separators. The remarks in yours EFC3/T31.5.26 were duly communicated to the Chloride Electrical Storage Co.Ltd. and… | ||
| Scan097 | Requesting cells for comparative testing of P & R and Exide batteries with new threaded rubber separators. | ||
| View original record | To Wd. from EFC. X3839 EFC1/T8.6.26. X. 3839 - THREADED RUBBER SEPARATORS FOR BATTERIES. We have now a complete P & R battery with threaded rubber separators and a complete Exide battery with threaded… | ||
| Scan098 | Delay in acquiring three standard battery cells to wait for an improved version. | ||
| View original record | To Wd. from EFC X3839 EFC2/T10.6.26. X.3839 - THREADED RUBBER SEPARATORS FOR BATTERIES. With further reference to EFC1/T8.6.26, in conversation with Mr. Minchin yesterday he stated that if we did not… | ||
| Scan099 | Letter from a battery supplier regarding voltage rise characteristics and the supply of test cells. | ||
| View original record | X 3839 Works. Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4 LINES PRIVATE BRANCH EXCHANGE. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD Proprietors - Pritchett & Gold and… | ||
| Scan100 | Letter to Peto & Radford concerning experiments on battery charging and cell configuration. | ||
| View original record | X3839 EFC1/T. 18th June, 1926. Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. For the attention of Mr. G.R.N.Minchin Dear Sirs, We thank you for your letter of the 17th inst. We note… | ||
| Scan101 | Extract from Messrs. Peto & Radford regarding the supply and testing of four special cells. | ||
| View original record | YJ839 Extract from M/5 19th June, 1926 FROM MESSRS. PETO & RADFORD. X.3839 "With regard to the special cells, we are making up four as you suggest, two of each construction, and will invoice them to… | ||
| Scan102 | Experimental 40/50 sandwich batteries containing cells with threaded rubber separators. | ||
| View original record | X3839 26.6.26. EXPERIMENTAL 40/50 SANDWICH BATTERIES CONTAINING CELLS WITH THREADED RUBBER SEPARATORS. No. Label. Case. - Battery. + 179. SR. Exide. [TRE o | TRP R+ | PN | STD E | TRP F+ | TRE o] 180.… | ||
| Scan103 | Letter to Mr. G.R.N. Minchin regarding a smaller output dynamo and the condition of four received cells. | ||
| View original record | x3839 EFC1/T. 9th July, 1926. Mr. G.R.N.Minchin, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, X8660 Thank you for yours of yesterday's date, and we will in due course arrange a smaller… | ||
| Scan104 | Letter regarding the spillage of acid from batteries during transit and the packaging methods used. | ||
| View original record | X3839 PETO & RADFORD. CONTINUATION 2. E. Fowler Clark Esq., (Extract) 12th July 1926. X8780 P.S. I am sorry that the four cells arrived with the acid spilt. The Works advise me that they were packed… | ||
| Scan105 | Electrical experimental record sheet for a P & R TR II Battery, detailing tests and observations. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. X2839 X. No:- 3839 P & R TR II Battery (178) Date on. | Location | Date off: | REMARKS. | Miles reading Start | Miles reading Finish | Miles covered | Total… | ||
| Scan106 | Letter discussing battery cells for chassis 7-EX and other battery-related queries. | ||
| View original record | X3839 EFC3/T. 10th December, 1926. Mr. G. R. N. Minchin, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, It would be interesting to know what your Works reported in connection with the parcel… | ||
| Scan107 | Extract of a letter from Messrs. Peto & Radford regarding the battery on Mr. Royce's chassis 7-EX. | ||
| View original record | X3839 Extract from M/5. 11.12.26. from Messrs. Peto & Radford (X 3711) " With regard to the battery on Mr. Royce's chassis 7-EX, I see that there are some of our cells on this so that will be all… | ||
| Scan108 | Letter from Peto & Radford discussing battery test results and design improvements. | ||
| View original record | X 4655 1 Copy to O/C R.W. 'VID' 1 Copy to O/C R.B. 'F19' 1 Copy to O/C 'E.C.B' COPY OF LETTER RECEIVED FROM PETO & RADFORD, 50, GROSVENOR GARDENS, LONDON, S.W.1. M/5. 12th February, 1927. Messrs… | ||
| Scan109 | The re-testing of an SR battery, detailing low and high rate discharge tests. | ||
| View original record | RR 23B (150 BKS.) (DD 431-8 12 24) MP 306975 X3839 ROLLS-ROYCE, LTD. INSTRUCTIONS. To G.F.C. Date 4-4-1927 Order No. J.C.79. Customer's No. X4617S. Re Tests on SR Battery (179) This battery was… | ||
| Scan110 | Instructions sheet detailing the results of a Cadmium test on threaded rubber separators and standard cells. | ||
| View original record | R.R 23B (150 BKS.) (DB 431-8 12 24) MP 306975 ROLLS-ROYCE, LTD. INSTRUCTIONS. II 19 To: C.F.G. Order No.: F.C.79 Customer's No.: Threaded Rubber separators had a slightly higher resistance than the… | ||
| Scan111 | Instruction sheet detailing the results of tests performed on an ST.13 battery. | ||
| View original record | R.R. 23B (150 BKS.) (DB 431-6 12 24) MP 306975 x 3939 ROLLS-ROYCE, LTD. INSTRUCTIONS. To: E.E.G. Order No.: JC 80 Customer's No.: X46175 Date: 27-4-1927 Re Tests on ST.13 Battery (181) This battery… | ||
| Scan112 | Instruction note detailing the results of a cadmium test on battery cells fitted with threaded rubber separators. | ||
| View original record | RR 236 (150 BKS.) (DB 431-8 12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. II 19 To Order No. IC 80. Customer's No. The cells fitted with threaded rubber separators have the higher internal… | ||
| Scan113 | Internal instruction to the Experimental Department regarding the receipt of a 12-volt battery from a chassis. | ||
| View original record | RR 26 (5M BKS.) (DD 963-14-4-26) MP 336344 X 3839 ROLLS-ROYCE, LTD. INSTRUCTIONS. To Exptl. Dept. 11-1-1928 Order No. S3524H Customer's No. YFX Sales. Please receive 1. 12 Volt Battery off above… | ||
| Scan114 | Instruction sheet detailing the results of tests on an SS battery. | ||
| View original record | RR 236 (150 BKS.) (DB 431-8 12 24) MP 306975 X3839 ROLLS-ROYCE LTD. INSTRUCTIONS. To: C.P.C. Date: 20-8-1928 Order No. IC.120. Customer's No. X4617S Re tests on SS Battery (180). This battery run… | ||
| Scan115 | Instructions and results for tests conducted on an ST Battery (181) after 20,000 miles. | ||
| View original record | RR 238 (150 BKS.) (DB 431-8 12 24) MP 306975 x.3839 ROLLS-ROYCE LTD. INSTRUCTIONS. To: C.V.B. Order No. I.C. 123. Customer's No. X467S. Re Tests on ST Battery (181) This battery has now completed over… | ||
| Scan116 | The re-testing of an SR Battery after a 2-year life test. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12 44) MP 306975 X3839 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.L. Order No.: IC.146. Customer's No.: XG6175 Re Tests on SR Battery (179) This battery has now run 12,723… | ||
| Scan117 | Instructions for a low-rate discharge bench test on an SR battery. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X 3839 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.T.G. Order No. IC 145- Customer's No. Re Bench Test on SR Battery (179) On a further Low Rate Discharge through… | ||
| Scan118 | Test report on an SS Battery (180), detailing low and high rate discharge results. | ||
| View original record | E.Y.E. x3839 15-7-29 J.D.15. x46178 Re Tests on SS Battery (180) On Low Rate Discharge this battery gave 27.4 ampere hours. No's 2 & 3 cells showing positive weakness. After a full charge it was given… | ||
| Scan119 | Test report on an ST Battery, detailing its mileage, age, and performance under various discharge rates. | ||
| View original record | E.Z.C. J.D.16. X3839. 18-7-29 X46175. Re Tests on ST Battery (181) This battery has ran 25,820 miles on the road & has been on our bench life test 12 months & is now 37 months old. On Low Rate… | ||
| Scan120 | Comparing P+R Standard and Exide threaded rubber battery separators. | ||
| View original record | J.D.16. 2 P+R. Standard. Exide Threaded Rubber. P+R Standard. By this it seems that threaded rubber separators suit the P+R better than the Exide especially with the rib facing the positive plate.… | ||
| Scan121 | The failure analysis of an Exide cell from an SS Battery. | ||
| View original record | C.7.C. X3839. J.D.17. Re Failure of Exide Cell in SS Battery No 3 cell (an Exide E/H) has now failed in this battery, this failure was predicted to happen shortly in JD15 - 15-7-29. When opened up the… | ||
| Scan122 | Agreed-upon thickness for Ebonite separators. | ||
| View original record | E.F.B. X4655. J.D.28. 26-9-29. X4655. Re Ebonite separators. Looking through the files I find that we finally agreed on the .4 m/m ebonite as against .6 m/m on the score of the charging RD. Later a… | ||
| Scan123 | Letter to supplier Peto & Radford Ltd. agreeing on the thickness specifications for ebonite battery separators. | ||
| View original record | X 4655. c. Mailing. EFC5/AD. 26th September, 1929. Messrs. Peto & Radford Ltd. 50, Grosvenor Gardens, London, S.W.1. Dear Sirs, Re : Ebonite Separators. This will confirm our conversation with your… | ||
| Scan124 | Analysis of a P&R threaded rubber battery cell failure after extensive road and bench testing. | ||
| View original record | E.F.C. J.D.39 X 3839. X46175 Re Failure of P&R cell in ST Battery (181) No 5 a P&R Threaded Rubber cell has failed in the above battery, after running 25,820 miles on the road & has been on our bench… | ||
| Scan125 | The failure analysis of battery plates and separators. | ||
| View original record | II J.D.39. Positive plate. The horizontal bars of the positive plates grew & the separator being in close contact was pierced causing contact with the negative plate, this caused a leakage path &… | ||
| Scan126 | Analysis of battery cell failures in SS & ST type batteries following road and bench life testing. | ||
| View original record | E.Y.C. X3839 18-12-29 J.D.H.6. X46175. (180 B.N.) Failure of cells in SS & ST Batteries. SS Battery has completed 14,767 miles on the road & has been on our bench life test 26 months. ST Battery has… | ||
| Scan127 | The failure of battery plates due to sulphation, treeing, and a resulting short circuit. | ||
| View original record | 2 JD.46. of some of the negative plates between the feet, this had caused treeing to take place & cause a leakage path, which eventually caused the positive plates to grow due to sulphate. I noticed… | ||
| Scan128 | Inspection report on the condition of battery cell number 6, detailing the plates and separators. | ||
| View original record | 3 I.D.46. S.S. Battery, PoR. cell no 6. Threaded Rubber, flat + The positive plates were fair having only lost a small amount of paste, but the peripheries & grids were badly broken & distorted due to… | ||
| Scan129 | Analysis and comparison of battery cell components, specifically separators. | ||
| View original record | T.D.46. #4 ST Battery cell no1 P&R Std. The positive plates were good & much stronger than the cell out of SS battery which was fitted with Threaded Rubber Separators & had also lost a less amount of… | ||
| Scan130 | Analysis of battery cell component issues, including plate distortion and separator impurities. | ||
| View original record | 5 J.D46. or pierced with the slightest pressure, it is also a disadvantage to have the flat side facing the positive plates, as it appears that gas gets locked in between tending to distort the… | ||
| Scan131 | Test report on an SS Battery (180) detailing its mileage, life test duration, and discharge performance. | ||
| View original record | E.H.C. J.D.77. X3839 2-5-30. X46175 Tests on SS Battery. (180) This battery has run 14,767 miles & has been on our bench life test 30 months. There are only 2 of the original cells in this battery,… | ||
| Scan132 | The bench life tests of an S.T. battery (181). | ||
| View original record | X3839 JD.79. 13.5.30. X.4617S. X 3839. TESTS ON S.T. BATTERY (181) This battery has now ran 25,820 miles and has been on our bench life test 17 months. It has given very poor results on bench tests.… | ||
| Scan133 | Electrical experimental record sheet for ST Battery (181) tests. | ||
| View original record | X3839 ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No:- 3839 ST Battery (181) | Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading FINISH. | Miles covered. | Total Miles |… | ||
| Scan134 | Experimental record sheet for an ST Battery, detailing test dates, locations, remarks, and mileage. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. X NO 3539 ST Battery (181) Page 2 Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading finish. | Miles Covered. | Total miles.… | ||
| Scan135 | Electrical experimental record sheet for an SS Battery test. | ||
| View original record | X3839 ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No.: 3839 ss Battery (180) Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total Miles… | ||
| Scan136 | Experimental record sheet tracking the testing and performance of an SR Battery (179). | ||
| View original record | X 3839 ELECTRICAL EXPERIMENTAL RECORD SHEETS. X. No:- 3839 SR Battery (179) | Date on. | Location. | Date off. | REMARKS. | Miles reading Start. | Miles reading Finish. | Miles covered. | Total MILES… | ||
| Scan137 | Electrical experimental record sheet tracking battery mileage and test results. | ||
| View original record | ELECTRICAL EXPERIMENTAL RECORD SHEETS. XNO:- 3839 SR Battery (179) Page 2 Date on. Location. Date off. REMARKS. Miles reading start. Miles reading finish. Miles covered. Total miles. 5-1-29 | 8EX |… | ||
| Scan138 | Tests completed on threaded rubber type separators for accumulators. | ||
| View original record | E.F.G. J.D.112 X8839. 29-1-21. X 3839 Threaded Rubber Separators Tests have now been completed on Threaded Rubber type of separation for accumulators. The general results & conclusions arrived at are… | ||
| Scan139 | Analysis of battery failure modes, including plate buckling, electrolyte levels, and separator experiments. | ||
| View original record | II J.D.112 months service & fractured with the slightest pressure from buckling of plates & swelling of active material. If the electrolyte level is allowed to get low the exposed portion of the… | ||
| Scan140 | Analysis of issues with battery cell separators, comparing standard wood and ebonite with Threaded Rubber. | ||
| View original record | J.D./112. 122 trouble. Many separators were found badly clogged with active material when cells were dismantled. At the commencement of their life similar results were obtained on the Std: cells & the… | ||
| Scan141 | Ignition options for the Goshawk I engine. | ||
| View original record | X3485 GENL D (DD-2-11 AM.H.2).T(m).A.2.S S To HS. from R. Copy to O.I. [Strikethrough] E.W.C. R10/G15/2/21. X3485 RE "GOSHAWK I" - IGNITION. X4275 X3481 I do not think it would be good to put on the… | ||
| Scan142 | Proposal to fit a temporary battery ignition system to the Goshawk I engine by replacing the magneto. | ||
| View original record | TO EY. From DA. Copy to RHC. (1 print) Copy to HS. Copy to EFC. [STAMP: RECEIVED] [STAMP: circular stamp dated 16 FEB with handwritten number X.3485 across it] DA6/AH15.211921. X 3485 RE "GOSHAWK 1"… | ||
| Scan143 | Addition of a terminal to a Bosch 'ZF6' Magneto for the 'Goshawk I' engine to enable temporary dual ignition. | ||
| View original record | TO EFC. FROM DA. X3485 DA22/AH16.2.1921. X:3485 "GOSHAWK I" BATTERY IGNITION" X 427 We send a print herewith of "N" Scheme 763 shewing the additional terminal to the Bosch "ZF6" Magneto to enable a… | ||
| Scan144 | Proposed battery ignition unit for the 'Goshawk II' engine, comparing distributor designs from Bosch and Packard Delco. | ||
| View original record | To Hs. from E, c. to CJ. c. to Wor. c. to EFC. X3485 E1/G22.2.21. X.3485 - RE "GOSHAWK II" BATTERY IGNITION. X.800. A simple battery ignition unit has been sketched for "Goshawk II". Mr. Royce… | ||
| Scan145 | Recommendation to fit battery ignition to the Goshawk I car due to unsatisfactory performance with its magneto. | ||
| View original record | R.R. 235A (109 T) S.H. 798. 10-12-20. G. 2947 X.3485 To R. from Hs.(and E) c. to CJ. g. to En. Hs5/LG25.2.21. X.3485 - RE "GOSHAWK I" X.427. X.3173. The reason we recommend fitting a battery ignition… | ||
| Scan146 | Copy of a label from Mr. Hives to Mr. Royce regarding the inspection and potential testing of a U.S.A. Bosch ignition system. | ||
| View original record | X.3485 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… | ||
| Scan147 | Test bench figures for the Goshawk I engine's starting torque and advance. | ||
| View original record | x3985 To R from Hs; c. to CJ. c. to BN. c. to E. c. to Da. c. to BY. Hs9/LG28.4.21. X3481 X2949 X-3485 RE. GOSHAWK 1 ENGINE. We are running Goshawk1 engine on the Test Bench. We have measured the… | ||
| Scan148 | Data table for the Goshawk I engine, detailing battery ignition timing settings (retard/advance) against various RPMs. | ||
| View original record | Contd. -2- Hs9/LG28.4.21. ---------- Goshawk 1 Battery Ignition. Position on flywheel B.T.D.C. at which horse power drops by retard or advance at various speeds. | Revs. | Retard. | Advance, |… | ||
| Scan149 | Use of an ebonite band on bakelite mouldings for the Goshawk II engine's battery ignition to prevent carbon tracking. | ||
| View original record | To HK. from E. Copy to Ed. X3485 Hs E1/G4/6/21. E.O. X3485 RE "GOSHAWK II" BATTERY IGNITION. We send you herewith drawing No. Lec.1398 showing the battery ignition gear. There are five bakelite… | ||
| Scan150 | Modifications to the rotor, spark points, and governor tower. | ||
| View original record | To DA. from E. -2- E1/G4/8/21 Contd. be instructed in both materials. This drawing slightly modifies the top of the governor tower shewn on previous LoCs. Referring to the rotor, it is intended that… | ||
| Scan151 | Forwarding drawings for the Goshawk II engine's Ballast Resistance and Ignition Wiring. | ||
| View original record | To DA. from E. Copy to C.J. [struck through] O.H. [struck through] R.Y. [struck through] H.S. [struck through] EPC. X. 3485 E2/G23/6/21. X.3485. RE "GOSHAWK II" - BALLAST RESISTANCE AND IGNITION… | ||
| Scan152 | To halt detailing work on the 'Goshawk II' battery ignition mechanism in favour of a new, simpler design. | ||
| View original record | To BY. from E. Copy to C.H. " WOR. " DA. " H.S. " E.F.C. X.3485 E2/G25/4/21. RE "GOSHAWK II" BATTERY IGNITION. In accordance with Mr. Royce's wishes, would you please hold up the detailing work on the… | ||
| Scan153 | Use and manufacturing of bakelite moulds for coil cases and other electrical components. | ||
| View original record | X3485 To EY. from R. c. to CJ. c. to Wor. c. to EFC. c. to Hs. c. to Hy. c. to R.R. of America Inc. (For the attention of OY). R1/G27.6.21. X.3513 RE BAKELITE MOULDS - COIL CASES - (BY2/P22.6.21).… | ||
| Scan154 | Page 2 of a document discussing a less expensive material alternative to mica or micanite. | ||
| View original record | Contd. -2- R1/G27.6.21. sheets of 1/32", 1/16" and 3/16". This material should be less expensive than mica or micanite and with few exceptions serve the purpose equally well. R. | ||
| Scan155 | The ballast resistance wire for the 'Goshawk' battery ignition system. | ||
| View original record | To R. from EFC. c. to AJ. c. to E. c. to Da. c. to By. c. to Ey/WER. c. to Da/Thr. X3485 EFC4/T14.7.21. X.3485 - "GOSHAWK" BATTERY IGNITION X.3716. Referring to LeC.1410 - Ballast Resistance for… | ||
| Scan156 | The sparking characteristics of a new ballast resistance compared to the standard arrangement. | ||
| View original record | Contd. -2- EFC4/T14.7.21. current with the new ballast resistance is approximately the same as before, the sparking characteristics are similar and the amount of sparking at the contact points is not… | ||
| Scan157 | Drawing parts and specifications for the 'Goshawk' II Ballast Resistance. | ||
| View original record | X3485 To RMG. C. to EFC. SFT Mr. Brook. EXPERIMENTAL BY/WER5/EF18. 7. 21. X3485 "GOSHAWK" II - BALLAST RESISTANCE. In connection with the above Unit please receive herewith two blue prints of each of… | ||
| Scan158 | Goshawk II battery ignition system and its ballast resistance design. | ||
| View original record | R.R. (10M T) A.H. 726. 10-12-20. G. 2947 X3485 To EFC. from R. c. to Hs. R1/G19.7.21. X.3485 - RE GOSHAWK II BATTERY IGNITION X.3716. The ballast resistance carrier design sent through has an equal… | ||
| Scan159 | Features of the non-trembler battery electrical and ignition system for the 'Goshawk II'. | ||
| View original record | X.3485 To Mr. Walker from R. c. to CJ. c. to EFC. c. to Hs. RS/G29.8.21. X.3485. RE CATALOGUE AND INSTRUCTION BOOK FOR THE X.4403. ELECTRICAL AND IGNITION SYSTEM FOR "GOSHAWK II" The chief features of… | ||
| Scan160 | Continued discussion on engine ignition systems, hand starting, and back-firing. | ||
| View original record | S.H. 384A (100. T) (S.H. 798. 10-12-20) G. 2948 Contd. -2- R6/G29.8.21. be started on the ignition only by moving the hand control, and there is no fear of the engine back- firing, should it be… | ||
| Scan161 | The initial testing of a U.S.A. Bosch battery ignition system and comparing its components to company standards. | ||
| 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. [Handwritten: X3485] EFC2/T5.9.21. X.4278 - U.S.A. BOSCH BATTERY IGNITION. X3485. We have had very little… | ||
| Scan162 | Report comparing condenser capacity and different battery ignition systems. | ||
| 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… | ||
| Scan163 | Revised specification for the Goshawk II battery ignition governor spring and advance timing. | ||
| View original record | To Da. from E. c. to CJ. c. to Hs. c. to Wor. c. to Ry. X3485 E8/G28.10.21. Z.3485. RE "GOSHAWK II" BATTERY IGNITION. X.3949. In our drawing LeC.1432 of the "Goshawk II" battery ignition, it is… | ||
| Scan164 | Extract from a report on the Goshawk II engine's battery ignition system following a visit by Mr. Hives. | ||
| View original record | X3485 Extract from H7/G9.11.21. RE VISIT OF MR HIVES TO WEST WITTERING WITH GOSHAWK II ON MONDAY 7th NOV. 1921. X.3485. (8) BATTERY IGNITION (SEE ALSO ITEM 12 LATER) One has not to handle Goshawk II… | ||
| Scan165 | Design suggestions for Goshawk and other battery ignition systems to prevent energy losses. | ||
| View original record | To EFC. from R. c. to CJ. Wor. PN. c. to BY. Hs. EP. X3485 RL/M13.11.22. X.4078 X.4271 X.3199 - RE GOSHAWK AND OTHER BATTERY IGNITIONS. The phenomenon found in the Goshawk suggests additional care and… | ||
| Scan166 | Testing of condenser materials, modifications to coil construction, and ignition system failures at slow speeds. | ||
| 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… | ||
| Scan167 | Coil performance, requesting stabalite coils for a Goshawk, and establishing a 'figure of merit' test. | ||
| View original record | Contd. -3- RL/M.S.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… | ||
| Scan168 | Comparing the benefits of battery versus magneto ignition systems for the 'Goshawk II' engine. | ||
| View original record | X3485 RECEIVED NOV 28 1921 To. H.S. from R. Copy to [illegible crossed out text] E.F.G. X. 3485 ✓ X. 3199 X. 430. x.3129 RE BATTERY OR MAGNETO IGNITION. I wrote some days ago pointing out to members… | ||
| Scan169 | Extract from a report discussing battery ignition following a visit with the 'Goshawk II' vehicle. | ||
| View original record | X.3485. Extract from R10/G25.11.21. X3485 RE VISIT OF MESSRS. HIVES & HALDENEY TO WEST WITTERING WITH "GOSHAWK II" - 23rd NOVEMBER 1921. X.4430 (6) BATTERY IGNITION. With regard to the condenser, the… | ||
| Scan170 | Extract from a report detailing a visit to West Wittering regarding the Goshawk II. | ||
| View original record | X 3485 Extract from R10/G25.11.21. X.4067 RE VISIT OF MESSRS. HIVES & HALDENBY TO WEST WITTERING WITH "GOSHAWK II" - 23rd. November, 1921. X.3485 (12) IGNITION WIRE TUBE. The red fibre tube at present… | ||
| Scan171 | Modifications to the battery ignition coil for the Goshawk engine due to high-speed performance issues. | ||
| View original record | R & E from EFC. c. to CJ. and PN. c. to BY. and EP. c. to Rg. and Da. c. to Wor. X3485 EFC2/LG29.12.21. X.3129 X.3485 - BATTERY IGNITION FOR 40/50 AND "GOSHAWK". Owing to the greater range of speed… | ||
| Scan172 | Ignition system failings and potential improvements for the 40/50 model. | ||
| View original record | contd:- -2- EPC2/LG29.12.21. Apparently the only failing of the 40/50 ignition as regards the quantities involved e.g., voltages, resistance, and inductances, exist during starting up from cold when… | ||
| Scan173 | The performance variations of ignition coils and the role of condenser capacity. | ||
| View original record | contd:- -3- EFC2/LG29.12.21. ---------------- definite conclusions. For instance, it has appeared from our experimental work that coils that happen to be identical in construction and treatment are… | ||
| Scan174 | Condenser capacity and its effect on ignition system performance, comparing mica and paper condensers. | ||
| View original record | contd:- -4- EFC2/LG29.12.21. be careful to meet these conditions as far as possible, in fact, to affect the most satisfactory compromise. For instance, at 1500 distributor speed or 3000 R.P.M. engine… | ||
| Scan175 | The completion of the 'Goshawk' model, covering a 10,000-mile test, the ignition system, and starter components. | ||
| View original record | X3485 1 To Hs. from R. c. CJ. BJ. PN. LHS. BY. WOR. HY. EP. EFC. X.4338 A.3485. "GOSHAWK" COMPLETION. I am very anxious to complete cars for February 10,000 miles test in France and England with… | ||
| Scan176 | Development and selection of electrical components including the dynamo, switchbox, distributing board and lanterns. | ||
| View original record | R2/M29.12.21. -2- Contd. and have something ready to hand. DYNAMO. (X.4383). This, with the altered drive to avoid the trouble of lining up and crank case fumes (in the present simpler scheme) will… | ||
| Scan177 | Drawing Lec1499 which details a revised battery ignition with an improved condenser for the Goshawk 11. | ||
| View original record | To Da. from E. c. to C.J. Mor. Hy. He. Ck. X3485 E1/M14.12.21. Goshawk 11. Revised Battery ignition with improved Condenser We send you herewith drawing No. Lec1499 shewing above. We would ask you to… | ||
| Scan178 | Visit concerning battery ignition modifications for the Goshawk II engine. | ||
| View original record | X.3485. Extract from R7/M30.12.21. RE VISIT OF MESSRS HS AND HY TO WEST WITTERING ON WEDNESDAY, DECEMBER 21st 1921. GOSHAWK II. (8) BATTERY IGNITION. X.3485. Regarding the ventilation of the H.T.… | ||
| Scan179 | Three modifications to the Goshawk 11 battery ignition system. | ||
| View original record | X3480 EL/M31.12.21. To Da. from E. c. to Co. Wor. Hy. Hs. Eng. Goshawk 11 Battery Ignition. X4357 We send you herewith drawing No. Lec 1511 shewing the following 3 points:- 1. Altered fixing for… | ||
| Scan180 | Recommendation to modify the 6.EX Car with fittings for low-grade petrol and a Goshawk type battery ignition for testing. | ||
| View original record | X3485 To R. from Hs. c. to CJ. c. to E. c. to Du. c. to HY. c. to EP. c. to Wor. X3923 [crossed out] 6.EX CAR. X3485 [written above X1698 which is crossed out] Hs5/LG16.1.22. We recommend that we… | ||
| Scan181 | List of experimental points to be settled regarding the Goshawk ignition system. | ||
| View original record | X.3485 1.2.22. X.3485 - GOSHAWK IGNITION. POINTS TO BE SETTLED IN THE EXPERIMENTAL DEPT. 1. Amount of ballast resistance. 2. Spring pressure between contact points, when closed. 3. Construction of… | ||
| Scan182 | The development status of Goshawk engine ignition system components, including coils, condensers, and cams. | ||
| View original record | X. 3485. To Ry. from EFC. c. Ey/WER. c. EP. c. Hy. c. WOr. EFC1/T1.2.22. X.3485 - GOSHAWK IGNITION. With reference to the various items on the Goshawk ignition, the position as regards this department… | ||
| Scan183 | Experiments and observations of ignition system components, including coils, distributors, sparking points, and governor characteristics. | ||
| View original record | Contd. -2- EFC1/T1. 2.22. Slight differences in the operation of coils in bakelite and in stabalite cases have been suspected, but careful experiments in interchanging coils and cases have shewn these… | ||
| Scan184 | Production of a 'Goshawk' Ballast Resistance unit, pending confirmation of the resistance wire specifications. | ||
| View original record | X. 3485 BY/WER2/EF10. 2. 22. S.H. Shts (100 T) (S.H. 298. 16-12-20) G. 2948 EFC. "GOSHAWK" 11. BALLAST RESISTANCE. SECTION 8150. We have released the above unit for production less the Resistance wire… | ||
| Scan185 | Request for the preparation of three experimental ballast resistances for the Goshawk ignition system. | ||
| View original record | X3485. To RHC. from EFC. EFC1/T13.2.22. X.3485. RE GOSHAWK BALLAST RESISTANCE. Would you kindly prepare three experimental ballast resistances for use with B coils, but with 40 coils of wire on the… | ||
| Scan186 | Outlining the performance requirements for a battery ignition system for the Goshawk engine. | ||
| View original record | To EFC. from R. c. to CJ. c. to Wor. c. to Ey. c. to Hs. c. to EP. c. to Mr. Brock. X 8480 R6/M14.2.22. X.3485. RE BATTERY IGNITION. X.3199. (1) Our battery ignition must be quite safe to run the… | ||
| Scan187 | Updates and specifications for the Goshawk ignition system components. | ||
| View original record | To By. from EFC. c. to By/WER. c. to EP. X3485 EFC2/T24.2.22. X.3485 - GOSHAWK IGNITION. With further reference to various items on the Goshawk ignition :- Coil. We have tried two of the six coils… | ||
| Scan188 | The length of nickel ballast resistance wire for the Goshawk engine. | ||
| View original record | To By/WER, from EFC. c. RHC. X3485 EFC2/T2.3.22. X.3485 - GOSHAWK BALLAST RESISTANCE. The length of No.31 S.W.G. nickel ballast resistance wire finally decided upon is 30¼" exclusive of ends for… | ||
| Scan189 | Extract regarding a potential Goshawk engine battery ignition failure due to bunched wires. | ||
| View original record | X.4414. X3485 Extract from E1/7.3.22. GOSHAWK. (2) BATTERY IGNITION X.4414. Does the ignition fail due to the wires being bunched together? E. | ||
| Scan190 | Loose Goshawk ballast resistance terminal and a suggestion to include spring washers. | ||
| View original record | To Hy. from EFC. c. to Hy/WER. X3450 EFC5/T29.3.22. RE GOSHAWK BALLAST RESISTANCE. During Hs's run across France with 4 Gos.II. for Mr. Royce, one of the ballast resistance terminals came loose. Does… | ||
| Scan191 | The lubrication of the cam for the ignition make and break on the Goshawk II engine. | ||
| View original record | To EP. from E. c. to CJ. c. to Wor. c. to EFC. c. to Hy. c. to Hs. X3485 E3/M31.3.22. X.3485. GOSHAWK II. LUBRICATION OF CAM X.4357. FOR IGNITION MAKE AND BREAK. With regard to the first item on your… | ||
| Scan192 | The Goshawk II battery ignition and governor design. | ||
| View original record | To EFC. from E. c. to CJ. c. to Wor. c. to Hs. c. to Da. c. to By. X 3485 E3/M28.3.22. X.3949 - GOSHAWK II BATTERY IGNITION X.3485. With regard to your memo. on the above in which you say you are… | ||
| Scan193 | The Goshawk II engine's ignition system and its safety gap feature. | ||
| View original record | To Hs. (Le Canadel) & EP c. to Cl. c. to Wor. c. to By. c. to EFC. X3485 E6/M10.4.22. X.4357. GOSHAWK II. IGNITION. X.3485. With reference to the remarks on page 3 of report EP5/H5.4.22., giving Mr.… | ||
| Scan194 | Ignition issues for the Goshawk engine, with suggestions for modifications to the distributor cover and LT rocker spring. | ||
| View original record | To By. from R. c. to Wor. Hs. EFC. c. to Da. EP. Hy. E. 13485 R5/M2.6.22. X.4357. GOSHAWK - IGNITION. X.3485. With reference to the ignition on No.4 Goshawk, I found the distributor cover very tight… | ||
| Scan195 | Spark plug adjustments to improve engine performance at slow and high speeds. | ||
| View original record | Contd. -2- R5/M2.6.22. supplied with the car in which the Lodge central electrode is shrouded with porcelain and not a skirt as in the earlier types. In an endeavour to get better slow running, the… | ||
| Scan196 | Modifications for a Goshawk battery ignition distributor unit. | ||
| View original record | To RHC. from EFC. c. to Ev/Ds. X3485 EFC3/T14.6.22. X.3485 - GOSHAWK BATTERY IGNITION. A complete up-to-date combined distributor, contact breaker and governor unit of which you will be making up a… | ||
| Scan197 | Method of fixing contact points and instructions for the governor mechanism. | ||
| View original record | Contd. -2- EFC3/T14.6.22. 7. CONTACT POINTS. Method of fixing -. As already contained in our instructions EFC1/T19.4.22 regarding the different method of fixing the contact points to the levers… | ||
| Scan198 | Specification sheet listing the standard quantities for the Goshawk Ignition system. | ||
| View original record | X. 3485 X. 3485 - GOSHAWK IGNITION. Standard quantities :- Coil resistance .5 w " inductance .011 henry Circuit resistance 2.05 w Ballast resistance 1.55 w at normal working current of average value… | ||
| Scan199 | Adaptation of a Goshawk 11 battery ignition to a Goshawk I chassis, referencing drawing No. Lec 1616. | ||
| View original record | To By. from E. C. to OJ. C. to HS. C. to EFC. ✓ X3485 RECEIVED AUG 23 1922 SH E1/M21.8.22 GOSHAWK 1. BATTERY IGNITION. We send you herewith drawing No.Lec 1616 shewing the adaption of Goshawk 11.… | ||
| Scan200 | Points from HS's visit to WW regarding the Bendix, water pump, and battery ignition. | ||
| View original record | To Hs. from R. X 3485 R1/M22. 8. 22. RE. HS'S VISIT TO WW. 16.8.22. X BENDIX. X.3592. This does not seem to be quite understood. The spring anchorage with 3 lugs should have a helical face to carry… | ||
| Scan201 | On the correct method for connecting the Goshawk ballast resistance wire to its tag. | ||
| View original record | X 3485 To By. from EFC. c. Mr. Brock. EFC1/T25.8.22. X. 3485 - GOSHAWK BALLAST RESISTANCE We consider that in making the connection of the end of the wire of the ballast resistance to the tag, the… | ||
| Scan202 | Proposing the use of a Goshawk battery ignition system on the 40/50 chassis. | ||
| View original record | 3 To R. from Hs. c. to C.J. c. to E. c. to Du. c. to DY. c. to RP. c. to WoR. X3485 40/50 CHASSIS ELECTRICAL EQUIPMENT. Hs3/LG25. 8.22. X3129. Further to our memo. Hel/LG25. 8.22. BATTERY IGNITION. A… | ||
| Scan203 | Particulars of Ballast Resistance for a Goshawk Ignition system, as given on drawing D.50197. | ||
| View original record | X3485 X.3485. GOSHAWK IGNITION. Particulars of Ballast Resistance as given on Drawing D.50197 :- The wire is of nickel No.31 S.W.G. (.0016" dia.) Total length of wire - 32" Dia. of coil .265. EFC. | ||
| Scan204 | Required modifications to the Goshawk Ignition & Lighting Switch. | ||
| View original record | X3485 To EFC. from R. c. to CJ. Wor. By. c. to Ws. Mr. Brock. RL/M29.9.22. X.3485 - GOSHAWK IGNITION & LIGHTING SWITCH X.4081. I am extremely pleased with this, and regret we have to modify it - there… | ||
| Scan205 | Potential failures and suggested improvements for a switch component, including its brushes, terminals, casing, and washers. | ||
| View original record | (2) (3) The greatest and perhaps only fear of failure in this switch is that the moving piece which makes contact may be too high or too low, and the brushes if rigid may not make contact either on… | ||
| Scan206 | Postscript about screw failure due to badly formed spring washers, with recommended modifications. | ||
| View original record | (3) P.S. With reference to this section dealing with spring washers, it was found on the model we received here that the head of one of the screws had been burst from the shank by the uneven loading… | ||
| Scan207 | Mandatory modifications for the Goshawk 11 ignition coil. | ||
| View original record | X3485 Mr Brock. O.C. Dept. c. Hs. BY17-P5.10.22. Y4079 GOSHAWK 11. IGNITION COIL. X3485 With reference to the three or four coils with which we have had some trouble recently, in order to entirely… | ||
| Scan208 | Confirming an instruction to alter the length of the Goshawk ignition ballast resistance wire from 32' to 25'. | ||
| View original record | X3485 EFC3/T5.10.22. To By. from EFC. c. to By/Ds. RE GOSHAWK IGNITION BALLAST RESISTANCE X.3485 This will confirm our conversation that you will kindly issue an instruction altering the length of… | ||
| Scan209 | Arguing for fitting the 40/50 model with the governed ignition developed for the No. 6 Goshawk. | ||
| View original record | X3485 To Hs. from R. c. to CJ. BJ. c. to PN. WBr. c. to By. EP. R4/M17.10.22. 40/50 & No.6 GOSHAWK GOVERNED IGNITION. X.3485. X.3949 X.3129 During some investigations with No.6 Goshawk I have noticed… | ||
| Scan210 | Engine starting issue due to the contact maker setting and ignition timing. | ||
| View original record | X.3485 PN12/DN/19.10.22. S/W. Hs. FROM PN. In a memo from R. Ref. R3/M16.10.22, there occurs the following paragraph :- "At the moment the engine will not start on the "switch because the contact… | ||
| Scan211 | Goshawk ignition tests, detailing intermittent failures and suggesting modifications to condenser connections. | ||
| View original record | To By. from EFC. c. EP. c. Mr. Brock. EFCL/T25.10.22. X.3485 - GOSHAWK IGNITION TESTS Tests of the Goshawk ignition on some of the first 20 production chassis appeared at one time to indicate that the… | ||
| Scan212 | Alterations to condensers for the four Goshawk demonstration cars. | ||
| View original record | Contd. -2- Dabs of solder could then be applied to these two holes to effect the positive connection between the case and each strip. (3) Further it is considered that a packing piece in addition to… | ||
| Scan213 | Battery ignition issues on the Goshawk engine, specifically the 'Neinst' effect on porcelain conductivity at high temperatures. | ||
| View original record | X.3485. PNL/DN/31.10.22. TO EFC. c. to R. & E. c. " CJ. c. " Hy. c. " TP. c. " Da. FROM PN. X. 3485 RE BATTERY IGNITION ON GOSHAWK. With reference to your EFC1/T28.10.22, it would be interesting to… | ||
| Scan214 | Use of vulcasbestos instead of asbestos for the Goshawk II ballast resistance. | ||
| View original record | EFC. from BY/C. X3485 4.11.22. X.3485 - BALLAST RESISTANCE - GOSHAWK II The vulcasbestos used in the above was because we asked for asbestos and some firm recommended the above and it was agreed to… | ||
| Scan215 | Telegram about Goshawk battery ignition issues, specifically concerning coil insulation and colouring materials. | ||
| View original record | TO:- R. from EFC. c. C.J. c. Wor for Mr. Brock. X3486 EFC/T9.11.22. X.3485 - GOSHAWK BATTERY IGNITION. X4079 Your telegram reading :- "CLARK GOSHAWK IGNITION STOP SUGGESTED TO HIVES EXPERIMENTALLY… | ||
| Scan216 | Materials for coil cases, comparing wood fillers with mouldensite and asbestos. | ||
| View original record | Contd. -2- EFC2/T9.11.22. Regarding your suggestion of mahogany or teak wood dust, the makers have previously informed us that only one or two very special kinds of wood can be used as filler. At… | ||
| Scan217 | Insulating properties of bakelite in a Goshawk coil and proposing further testing. | ||
| View original record | To EFC. from R. X.3485 - GOSHAWK COIL. X.4079. It was quite unsuspected, if you find as anticipated that the insulating properties of bakelite are very much reduced at increased temperature. The… | ||
| Scan218 | List of suggestions for the design of Goshawk and other battery ignition systems to avoid energy loss. | ||
| View original record | To EFC. from R. c. GJ. Wor. PN. c. BV. Hs. EP. X3485 R1/M13.11.22. X.3485. GOSHAWK AND OTHER BATTERY IGNITIONS X4079 The phenomenon found in the Goshawk suggests additional care and tests of… | ||
| Scan219 | Testing of materials for condensers, coil construction, and investigating ignition failures. | ||
| View original record | Contd. -2- RL/M13.11.22. (7) Can you test a number of suitable materials probably with a high alternating electromotive force perhaps made into a condenser form so as to find their relative values… | ||
| Scan220 | Continued discussion on testing and comparing experimental Stabalite and mouldensite ignition coils. | ||
| View original record | Contd. -3- R1/M13.11.28 other dielectric actions, as we have a lot of metal work in contact with the bakelite, including the iron core, the holding down bolts, and the L.T. circuit. Mr. Elliott is… | ||
| Scan221 | Efforts to improve the Goshawk II battery ignition coil's resistance to energy leakage. | ||
| View original record | K.R. 199 (250T) (SD676 19-7-17) MP18/885 To EFC. from R. c. CJ. FN. c. Hs. Ey. EP. X3485 R1/M15.11.22. X.3485. GOSHAWK II. BATTERY IGNITION. X.4079 Our efforts should be directed to trying to make a… | ||
| Scan222 | Continued discussion on improving ignition coil and wiring design to reduce self-induction. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) MP18086s F1/M15.11.22. -2- Contd. which also appears should be kept 1" clear with air space ? The primary wiring throughout except on the magnetic coil should have low… | ||
| Scan223 | Specifying the standard ignition timing for the Goshawk engine. | ||
| View original record | V3485 EFC/T24.11.22. X. 3485 - GOSHAWK IGNITION - STANDARD TIMING X.928. X.3949. The hand advance allows for 20° advance on the distributor or 40° on the engine. The automatic advance is 15° on the… | ||
| Scan224 | Requesting experiments on the Goshawk engine's stabalite ignition coil and its ability to operate using dry batteries. | ||
| View original record | X3485 To EFC. from R. c. CJ. c. Wor. c. EP. c. Hs. c. PN. R2/M30.11.22. X.3485. GOSHAWK IGNITION. YH279 YH273 I should like you to find at what temperature the stabalite coil works when fixed in the… | ||
| Scan225 | New Goshawk ignition arrangement for the coil, distributor, and wiring, along with proposed modifications. | ||
| View original record | TO-HS. FROM R. c. to CJ. c. to WAH. c. to EFC.✓ c. to D^r. c. to WP. X3485 R2/M1.12.22. GOSHAWK IGNITION. X3465 E. is sending our new arrangement for the coil, distributor, and wiring. There are on… | ||
| Scan226 | Modifications and associated drawings for the Goshawk II battery ignition system. | ||
| View original record | To Ry. from E. c. to CJ. Wor. c. to Hs. EFC. X.3485 E1/M8.12.22. X.3485 GOSHAWK II BATTERY IGNITION X.4075 X.4079 We send you herewith the following drawings:- LeC.1653 - Improved ignition coil in… | ||
| Scan227 | Improvements to the ignition coil, wiring layout, and component placement on the chassis. | ||
| View original record | Contd. -2- E1/M8.12.22. the distributor. It makes the wiring less straggly, and it should be electrically better. The final move is to use an improved coil as on LeC.1653 permanently supported from… | ||
| Scan228 | Experiment to test the suitability of dry batteries for the Goshawk ignition system. | ||
| View original record | To R & E. from EFC. c. CJ. & PN. c. By. & EP. c. Rg. & Da. X3485 EFC2/T1.1.23. X.3485 - GOSHAWK IGNITION. We have now made the second experiment asked for in your R2/M30.11.22 of finding out if the… | ||
| Scan229 | The performance of dry cell batteries, detailing tests on voltage, current, and suitability for engine ignition. | ||
| View original record | Contd. -2- EFC2/T1.1.23. The next day a short circuit current of 2.9 amperes was attained, the open circuit voltage being 14.41. Subsequently the short circuit current taken at intervals began to… | ||
| Scan230 | Continued page discussing the extra weight and activation time of cells. | ||
| View original record | Contd. -3- EFC2/T1.1.23. of the question owing to the extra weight, say 30 lbs, which it would always be necessary to carry. Then again, the cells are only 60% active after 15 minutes and not 100%… | ||
| Scan231 | Satisfaction of a battery and dynamo resistance unit scheme for Goshawk chassis delivery. | ||
| View original record | X3485 To EP. from EFC. EFC2/T4.1.23. X.4414 - RE BATTERIES FOR CHASSIS DELIVERY X3485 We shall now be glad to know if you are satisfied with the scheme of small P & R batteries and dynamo field… | ||
| Scan232 | Production test and inspection procedure for the Goshawk ballast resistance for the ignition coil. | ||
| View original record | X3485 12.1.23. X.3604b - PRODUCTION TEST AND INSPECTION OF GOSHAWK BALLAST RESISTANCE FOR IGNITION COIL. X.3485. A rig should be used with connecting pins, on which three ballast resistances can… | ||
| Scan233 | Production and modification of a Ballast Resistance for the Goshawk II engine. | ||
| View original record | R.R. 199 (250T) (SD676 19-7-17) M P18086S EXPERIMENTAL X3485 RHC. c. sd. c. EFC. c. Mr.Booth. ---------- BY/Ds10/H. 17.1.23. -------------------------- RE GOSHAWK II BALLAST RESISTANCE.… | ||
| Scan234 | Implementation of a double ignition system for the Goshawk model, detailing the use of different spark plugs and a 3-position switch. | ||
| View original record | TO BJ. & BY. FROM R. c.c. to CJ. IHS. c.c. to WCR. EFC. c.c. to HS. DA. c.c. to E. EP. Handwritten: Hs 1923 3485 Stamp: JAN 23 1923 RECEIVED X3485 RE. IGNITION Naturally we should prefer to fit all… | ||
| Scan235 | Design improvements for coil cases and ignition system wiring. | ||
| View original record | (2) we substitute does not decrease the efficiency of the coil. We have made a design for this coil case which can be much more easily made in stabilite than the present one with the square base. This… | ||
| Scan236 | The ignition system for the Goshawk engine, recommending a primary battery ignition with a magneto as a backup. | ||
| View original record | X3485 To Hs. from R. c. to CJ. BJ. Wor. c. to Ev. E. EP. RI/M15.2.23. X.3551. RE GOSHAWK IGNITION X.3485. For the present I recommend that we arrange everything possible so that our battery ignition… | ||
| Scan237 | Requirements for a three-position ignition switch for the 40/50 and 20 HP models. | ||
| View original record | X3485 TO Mr. Stent from R. c. to CJ. BJ. PN. DA. c. to E. Hs. BY. EFC. R4/M13.1.23. X 1413 X 3557 A switch is wanted for the 40/50, and sometimes the 20 HP - small but very reliable, having three… | ||
| Scan238 | Technical memorandum discussing failures and proposing solutions for the ignition and dynamo on the 4-Goshawk II. | ||
| View original record | X3485 R1/M7.3.23. To EFC. from R. c. to CJ. BJ. Wor. c. to Rg. Hs. EP. c. to By. E. Da. Hy. RE 4-GOSHAWK II. The electrical equipment has been a disappointment (1) X.3485. The ignition make and break… | ||
| Scan239 | Unsuitability of tan fibre material for the Goshawk ballast resistance compared to vulcasbestos. | ||
| View original record | To By. from EFC. X3485 EFC4/T13.3.23. X.3485 - TAN FIBRE MATERIAL FOR GOSHAWK BALLAST RESISTANCE. Having made suitable tests with this material as a separator for the procelains in the Goshawk ballast… | ||
| Scan240 | Extract discussing the failure of ignition contacts on electrical equipment and the remedial action taken. | ||
| View original record | X.3485. Extract from EFC4/T26.3.23. 4-G.II ELECTRICAL EQUIPMENT. Answering your RL/W7.3.23 :- (1) Failure of Ignition Contact. We have had one or two similer failures occur on test. This was due to… | ||
| Scan241 | The ignition system for the Goshawk engine, proposing a dual battery and magneto setup. | ||
| View original record | X3485 To EY. from R. c. to CJ. BJ. Wor. c. to PN. Hs. EFC. c. to Da. E. EP. X.3485 - RE IGNITION GOSHAWK. X.3551. You will remember that I recommended every Goshawk to be turned out with two ignitions… | ||
| Scan242 | Design considerations for a magneto, including spark control, dimensions, materials, and coupling mechanism. | ||
| View original record | Contd. -2- RL/M26.4.23. for this, i.e. a magneto with ample range of advance and capable of sparking efficiently in late position of control so that when engine is turned slowly by starting handle… | ||
| Scan243 | Dynamometer test comparing a Magneto ignition system with a Goshawk battery ignition system. | ||
| View original record | X3485 14/15 June 1923. Test to find correct position for Battery Ignition. MAGNETO v. GOSHAWK IGNITION. 40-50 Chassis 49-GB. Cut-out closed. Radiator 75°C. 15 X 52 axle (i.e. 1 rev. of engine = .198… | ||
| Scan244 | Engine performance data from Test 2 and Test 3, comparing magneto and battery ignition systems. | ||
| View original record | Test 2. "Redline" No.1 spirit. Bar. 760 m/m. Magneto. 25° B.T.D.C. fully advanced - centre plugs. Battery. 20° P.T.D.C. fully retarded - pocket plugs. 45° B.T.D.C. " advanced . Engine R.P.M. |… | ||
| Scan245 | Engine performance test results comparing magneto and battery ignition systems. | ||
| View original record | Test 4. Redline No.1 spirit. Bar. 760 m/m. Plug wires changed over. Magneto. 25° B.T.D.C. fully advanced. Pocket plugs. Battery. 15° P.T.D.C. fully retarded. Centre plugs. 50° B.T.D.C. fully advanced.… | ||
| Scan246 | Faults and improvements for Goshawk electrical units. | ||
| View original record | X3485 TO BY. FROM R. a. to CJ. RJ. b. to WW. WGR. c. to HS. HSG. d. to EP. RE. GOSHAWK ELECTRICAL UNITS. There is very little excuse for these fail-ing and depending upon WW. For further instructions.… | ||
| Scan247 | Extract from a memo discussing progress on electrical work for ignition systems. | ||
| View original record | X3465 Extract from Rl1/M20.9.23. ELECTRICAL WORK. X. 4338. I am looking anxiously for some progress in the electrical work as follows :- IGNITION BATTERY & MAGNETO. I understand you are now satisfied… | ||
| Scan248 | The relative timing of the battery ignition and magneto. | ||
| View original record | X3485 4 To BY. from EFC. c. By/Shp. c. EP c. Hs/TMW. EFC2/T17.10.23. X.3551 X3049 X928 X4357 X.3485 - RELATIVE TIMING OF BATTERY AND MAGNETO. At speeds below that at which the automatic advance of the… | ||
| Scan249 | Modifications to rotor blades to address magneto spark issues. | ||
| View original record | Contd. -2- EFC2/T17.10.23. The amount of course would be again reduced the moment the automatic advance comes into play. It is suggested that to overcome the necessity for the magnetospark to jump, an… | ||
| Scan250 | Starting issues with the Goshawk engine's battery ignition system. | ||
| View original record | To EY. from EFC. c. EP. Hs. c. Hs/TMW. X3485 EFC2/T9.1.24. X.3485 - GOSHAWK BATTERY IGNITION. X.3949. Herewith please receive copy of matter relating to the starting of the Goshawk engine, which… | ||
| Scan251 | Goshawk engine battery and magneto ignition diagram graph. | ||
| View original record | X3485 Battery Ignition advance (Fully advanced automatically) Advance allowed by rotor blade (Full automatic retard) Magneto Advance Battery Ignition advance (Fully retarded automatically) Retard… | ||
| Scan252 | Developing a formula for the ignition break position for starting the Goshawk engine. | ||
| View original record | 9.1.24. (Handwritten Notes: Revised 31.10.24 See X5680) X.3485 - GOSHAWK BATTERY IGNITION. X.3949. Development of formula giving position of lever on quadrant, at which ignition break should take… | ||
| Scan253 | Calculation of ignition timing parameters and conditions required for an engine starting spark. | ||
| View original record | -2- Contd. Further, the fully advanced make will occur R + 120 r - d degrees before dead point. It is clear that in moving the ignition lever from full retard to full advance a make will occur if the… | ||
| Scan254 | Page from a report analyzing spark timing and ignition settings with mathematical calculations. | ||
| View original record | -3- Contd. The circumstances may be such that it is less than 56°, in which case a spark could not be produced by retarding the lever. The fraction reckoned from the retard end of the range of the… | ||
| Scan255 | List of tests and calculations for a battery ignition system. | ||
| View original record | X 3485 X.3485 X.4357 - R.R. BATTERY IGNITION. (Standard .55 make ratio at 700 R.P.M.) (1) Measurement of inductance of coil. (2) Gap make ratio curve at 700 R.P.M. (3) Make ratio speed curves at .45,… | ||
| Scan256 | Change log tracking modifications for battery ignition coils. | ||
| View original record | C.A.P. BATTERY IGNITION COILS. TABLE COLUMNS: Column 1: 1 Cos. II., Date, Change. Column 2: 2 Cos. II., Date, Change. Column 3: 3 Cos. II., Date, Change. Column 4: 4 Cos. II., Date, Change. Column 5:… | ||
| Scan257 | Specification sheet for a standard tall stabalite encased battery ignition coil. | ||
| View original record | X3485 To R. from EFC. c. E. & Ds. c. CJ. & PN. c. EY. EP. GY. EFC3/T29.4.24. X.4596 - UP-TO-DATE STANDARD TALL RR. STABALITE ENCASED BATTERY IGNITION COIL. and X.3485 - UP-TO-DATE RR. BATTERY IGNITION… | ||
| Scan258 | Specifications and test conditions for a contact breaker and secondary coil on a 20 HP chassis. | ||
| View original record | -2- Contd. CONTACT BREAKER: Normal speed (R.P.M.) (20 HP. chassis) 700 No. of breaks per revolution. 6 " " " second. 70 Platinum gaps set at .022" for Test; .019 for Prod'n Make ratio. r .50 for Test.… | ||
| Scan259 | Continued analysis of current consumption variations at different speeds, comparing observed and calculated values for ignition systems. | ||
| View original record | -3- Contd. The manner in which this consumption varies at different distributor and road speeds is shown on the accompanying curves, there being a curve for the observed current and also a curve for… | ||
| Scan260 | Ignition energy consumption, ballast resistance, and the performance of tungsten points. | ||
| View original record | EFC3/T29.4.24. -4- Contd. (1) The probability is that this consumption is given for relatively high engine and contact breaker speed when the consumption will be low. At the lower engine engine… | ||
| Scan261 | Continued report on the performance of points, noting issues of burning or pitting and referencing a previous bench test. | ||
| View original record | EFC3/T29.4.24. -5- Contd. these points is reasonably satisfactory. all makes of points tried previously having shown unsatisfactory burning or pitting. A report on a similar set of these points tested… | ||
| Scan262 | Graph of current consumption curves for a standard tall coil in a Stabalite case at 8 and 12 volts. | ||
| View original record | CURRENT CONSUMPTION CURVES FOR R.R. STANDARD TALL COIL IN STABALITE CASE. AT 8 AND 12 VOLTS RESPECTIVELY. Y-Axis Labels: CURRENT AT BREAK (AMPERES) AVERAGE CURRENT (AMPERES) X-Axis Labels: DISTRIBUTOR… | ||
| Scan263 | Graph of the Gap-Make Ratio curve versus the Primary Gap for a standard Goshawk distributor. | ||
| View original record | GAP-MAKE RATIO CURVE. OF STANDARD GOSHAWK DISTRIBUTOR. RUN AT A CONSTANT SPEED OF 700 R.P.M. MAKE RATIO PRIMARY GAP (10⁻³INS) POINTS A AND B REPRESENT THE LIMITS GIVEN IN THE PRODUCTION SPECIFICATION… | ||
| Scan264 | Data table showing variations with 'Steel VI' without expansion, based on speed fraction and efficiency calculations. | ||
| View original record | VARIATIONS WITH STEEL VI WITHOUT EXPANSION SPEED FRACTION Z TAKING UNITY AS NORMAL RUNNING EFFICIENCY = x² / 2(x-y) | z | n | S | r/S | r.4343/S | log e^(-r/S) | e^(-r/S) | e^(-2r/S) | x | y | C' | Sx… | ||
| Scan265 | Establishing a standard for chemical leak utility tests for magneto and battery ignition systems. | ||
| View original record | X 3485 EFC. 5.5.24. WA.28. CHEMICAL LEAK FOR UTILITY TESTS ON MAGNETO AND BATTERY IGNITION. After considerable experimental work the conductance of the above has been fixed at a suitable figure. This… | ||
| Scan266 | Comparison of calculated and observed average current values showing the effect of make-ratio variation for a standard tall coil and distributor. | ||
| View original record | X.3485 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.Y.B. Order No. W.A. 33 22-5-1924 Customer's No. X 3485 Figures obtained by calculation and observation showing the effect of variation of make-ratio on… | ||
| Scan267 | Investigation into wire breakage on the 20 HP. type of ballast resistance. | ||
| View original record | X 3485 EFC. BY10/H. 27. 5. 24. X.3485 BALLAST RESISTANCE. The 20 HP. type of ballast resistance, has, on more than one occasion, given trouble due to the wire breaking on some of its convolutions.… | ||
| Scan268 | From EFC to BY concerning the inability to obtain ballast resistances for experimental cars. | ||
| View original record | X.3485 To BY. from EFC. EFC2/T29.5.24. X.3485 - GOSHAWK BALLAST RESISTANCE. Reference your EY10/H27.5.24, this matter is having our attention, but at the moment we cannot obtain ballast resistances to… | ||
| Scan269 | The replacement and examination of 20 HP ballast resistances. | ||
| View original record | X.3485 To RHC. from EFC. c. Hs/TMW. EFC6/T3.6.24. X.3485 - 20 HP. BALLAST RESISTANCE. Herewith we hand you two present standard up-to-date standard ballast resistances. We should be glad if you would… | ||
| Scan270 | Experiments and results on Goshawk ballast resistances. | ||
| View original record | To EY. from EFC. X3485 EFC9/T11.6.24. X.3485 - GOSHAWK BALLAST RESISTANCE. Reference your EY10/H27.5.24 and further to our EFC2/T29.5.24, we have now completed certain experiments on various ballast… | ||
| Scan271 | Quality of wire and the oxidization of resistances. | ||
| View original record | Contd. -2- EFC9/T11.6.24. improved the quality of the wire, and it is possible that the oxidization of the resistances at present coming out is considerably less than that in the cases of which you… | ||
| Scan272 | Test report on the deterioration of nickel ballast resistance wire under various conditions. | ||
| View original record | EFC. 6.6.24. WA.42. TEST OF BALLAST RESISTANCE WIRE. X.3485. Four tests were carried out with wire from four ballasts, the tests being for the object of ascertaining whether the nickel wire… | ||
| Scan273 | Investigation into the deterioration and failure of Ballast Resistance Wires. | ||
| View original record | BALLAST RESISTANCES. In order to try andget some definite evidence as to whether the Ballast Resistance Wire deteriorates in service, I put in hand a number of experiments which consisted in trying:-… | ||
| Scan274 | Dispatch of curves for automatic advance on the EAC.II and 20 HP engines. | ||
| View original record | X3455 SECRET To R. from EFC. E. A. C. EFC9/T27.8.24. c. E. c. CJ. X.9249 X9780 X3455 AUTOMATIC ADVANCE - EAC.II. (AND 20 HP.) ENGINE. Reference EL/M9.8.24. We are sending, addressed to E. under… | ||
| Scan275 | Explaining the use and application of various ignition and magneto specification curves for setting engine requirements. | ||
| View original record | Contd. -2- EFC9/T27.8.24. These tracings are labelled (in red) "R.R. Battery Ignition" "Scintilla AM-6-A Magnetos (average curve), "Scintilla AG-6-A Magnetos" and "General Magneto Specification". All… | ||
| Scan276 | Comparing engine performance curves and automatic advance characteristics. | ||
| View original record | Contd. -3- EFC9/T27.8.24. This is put on tracing paper so that it may be compared by super-position with the curves for the 20 HP., from figures supplied by Hs. on 3.2.22, but the absolute position of… | ||
| Scan277 | Breakdown of ignition advance curves into sub-groups for different engine and magneto configurations. | ||
| View original record | Contd. -4- EFC9/T27.8.24. Of these,:- Sub-group A is with reference to battery ignition on 20 HP. chassis only, and contains:- (1) A curve obtained by calculation judged to be the nearest possible to… | ||
| Scan278 | The average advance curves for various Scintilla magnetos and their application to an engine. | ||
| View original record | Contd. -5- EFC9/T27.8.24. (4) Average advance curve of AM-6-A Scintilla magneto; (5) Average advance curve of AG-6-A Scintilla magneto No.21523. (6) Average advance curve of AG-6-A Scintilla magneto,… | ||
| Scan279 | Adjustments to magneto and battery ignition specifications, particularly for the EAC.2 engine. | ||
| View original record | Contd. -6- EFC9/T27.8.24. this is liable to be exceeded by a few degrees, so that the maximum advance of the battery ignition may be this amount less than the 60° b.d.p. stated. A photostat diagram… | ||
| Scan280 | Synchronizing magneto and battery ignition systems and a formula for flick start retard. | ||
| View original record | Contd. -7- EFC9/T27.8.24. The two advances of the battery ignition in this diagram are the same as at present on the 20 HP. Those for the magneto ignition are as specified in our general specification… | ||
| Scan281 | Continued discussion on the 20 HP battery ignition governor spring and distributor speed limits. | ||
| View original record | Contd. -8- EFC9/T27.8.24. between the degrees of advance on the battery ignition and the hand lever. Lastly, with reference to E's final query, there is a slight initial set on the 20 HP. battery… | ||
| Scan282 | Graph showing the required ignition advance range against engine speed for a 20 HP engine. | ||
| View original record | [ "20.HP", "MAXIMUM", "MINIMUM", "ENGINE DEGREES B.D.P.", "ENGINE SPEED R.P.M.", "CURVES SHOWING THE IGNITION ADVANCE REQUIRED ON R.R. 20HP. ENGINE.", "(FIGURES SUPPLIED BY Hn.) 3.2.22", "THE CURVES… | ||
| Scan283 | Table of electrical measurements and running quantities for a standard ignition system. | ||
| View original record | X3485' 25.3.25. RUNNING QUANTITIES OF STANDARD IGNITION SYSTEM. X8680 X3485' Representative Observed Observed figures (8 volt). figures (8 volt) figures (12 volt). (.5 make ratio). (.55 make ratio)… | ||
| Scan284 | Instruction sheet detailing a new sheet aluminium cover for the ballast resistance on the dash. | ||
| View original record | RR 238 (150 BKS.) [BHS7.29-6-20.] MP 224355 X.3485. ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.b. Date 24-4-1925 Order No. WB7 Customer's No. D51317 Ballast resistance cover. 20HP This cover is made of… | ||
| Scan285 | Instruction suggesting a cover for the ballast resistance be standardized on the 20HP chassis. | ||
| View original record | ROLLS-ROYCE LTD. INSTRUCTIONS. RR 238 (150 BKS.) (BH57-20-8-26.) MP 224352 To 19 Order No. 2 Customer's No. This cover therefore prevents accidental damage to but reduces the cooling effect of the… | ||
| Scan286 | Strongly criticizing drawing D Scheme 255 for a 20 HP battery ignition system, highlighting numerous design flaws. | ||
| View original record | To EFC. from R. Hs. By c. CJ. Wor. X3485 R1/M10.8.25. RE R-R BATTERY IGNITION. 20 HP. X.8691. X.3485. Regarding your drawing D Scheme 255.. the proposals as shewn are quite wrong, and impossible.… | ||
| Scan287 | 13,000-mile fault-free test of a ballast resistance cover and questioning its necessity. | ||
| View original record | To BY/RD. from EFC. X3485 EFC1/T23.9.25. X.3485 - BALLAST RESISTANCE COVER D.SCHEME .253. This has now completed 13,000 miles running, not showing any fault. Do you still consider there is any call… | ||
| Scan288 | Decision not to fit the Ballast Resistance Cover at the present time. | ||
| View original record | X5485 To EFC. BY/RD3/ML.25.9.25. X.3485 - BALLAST RESISTANCE COVER. Referring to your EFC/1 T23.9.25. we have not had any failures from Coachbuilders carelessness since pointing this out to them, and… | ||
| Scan289 | Extract from a report on the performance of a 20 HP car in France, detailing issues with ignition and lamps. | ||
| View original record | X5680 Extract from Comm. Brigg's report re 20 HP. Car in France. Typed 29.9.21 Ignition. X4357 X3485 Platinum points of the contact breaker were found to be very rough and burned at 8700 miles, but… | ||
| Scan290 | Chassis 10-GII after 2948 miles, detailing the state of the battery ignition system. | ||
| View original record | Y5680 Extract from GWH1/RP12.4.26. Report on chassis 10-GII after 2948 miles. Battery ignition. X.5690. X.2894. X.5680. Improved ventilation to distributor, window in head and hole in base… | ||
| Scan291 | Battery ignition issues for chassis 10-GIII after completing 7526 miles. | ||
| View original record | X5880 Extract from GWH/2/RP.23.4.26. Report on Chassis 10-GIII after 7526 Miles. Battery ignition. X.4357. X.3485. X.5680. X.2894. Improved ventilation to distributor, window in head and holes in… | ||
| Scan292 | Chassis -10.GIII after 10,027 miles, concerning the battery ignition system. | ||
| View original record | X 5680 Extract from GWH3/FP.4.5.26. Report on Chassis -10.GIII after 10,027 miles. X.8940a Battery ignition. X.4357, X.4652, X.5680. Improved ventilation to distributor - window in head and hole in… | ||
| Scan293 | Improvements to the battery ignition contact points for Phantom, 20HP, and Silver Ghost models. | ||
| View original record | TO EFC. HS.) FROM R. E. BY.) (At Le Canadel.) X5680 ORIGINAL R2/M22.1.27. DESPATCHED FROM WW. 25.1.27. X4041 X2894 V4652 Copy to - BS. WOR. BATTERY IGNITION - PHANTOM, 20HP. & SILVER GHOST. I feel… | ||
| Scan294 | Ignition system components, including contact materials and distributor design. | ||
| View original record | (2) Oscilloscope should shew if we bounce more than Delco or Bosch. Tungsten might like a little scrub on making as would appear to be the case with Delco. It would rub the contact (not good for… | ||
| Scan295 | Satisfaction with a new trials car and improvements for the Phantom & 20 HP models, including parts stock management. | ||
| View original record | X5680 To EY ) HS }FROM R. EFC)(at Le Canadel) R5/M1.2.27. DESPATCHED FROM WW. 4.2.27. c. to BJ. WOR. PHANTOM & 20 HP. X.2894. X.5680. FN. CWB. H. X.7680. Mr. Hanbury's expressions of satisfaction with… | ||
| Scan296 | Reply concerning electrical troubles with magneto and battery ignition points on various car models. | ||
| View original record | X5680 To EFC. from Hm/NRC. NRC/7/EH.14.2.27. In reply to your query re electrical troubles :- (1) Magneto Platinum Points. With regard to the E.O.6. magnetos fitted to all post-war 40/50 HP. cars,… | ||
| Scan297 | The performance of magneto distributor points and dynamo brushes for the 20 HP model. | ||
| View original record | 1. COPIES TO MR V.T.D. 2 COPIES TO MR T.P. 1 COPY TO MR E.C.B -2- X.5790. (3) With regard to the high tension distributor points on the 20 HP. when running magneto. We cannot give much from VTD… | ||
| Scan298 | Chassis 10G3 after a 10,000 mile test in France, detailing ignition issues. | ||
| View original record | X.5680. Extract from GWHL/RP10.5.27. REPORT ON CHASSIS 10G3 AFTER 10,000 MILE TEST IN FRANCE. The tungsten points became badly pitted and caused bad misfires at the mileage of 7921. These were taken… | ||
| Scan299 | Dual versus single ignition for India engines, referencing the 20 HP and Lorraine Dietrich engines. | ||
| View original record | To R. from Hs/ACL. c. to BJ. Wor. c. to E. Da. c. to BY. /5680 Hs/ACL1/LG.7.3.28. INDIA ENGINES - DUAL & SINGLE IGNITIONS Referring to memo. H1/M25.2.28 on the subject of India engines, we note the… | ||
| Scan300 | Continued analysis of spark advance with single versus dual ignition, comparing different engines and compression ratios. | ||
| View original record | contd :- -2- way as the system used on the Hispano. An interesting feature observed was the small spark advance required when using dual ignition, to give maximum power. With one ignition appreciably… | ||
| Scan301 | The effectiveness of turbulent heads versus synchronised ignition in reducing spark advance and detonation on 20 HP and Phantom engines. | ||
| View original record | contd :- -3- The Journal of the S.A.E. Aug. 1923. Naturally we should expect the turbulent type head to improve the 20 HP. with regard to detonations and ignition advance but we think the optimum… | ||
| Scan302 | Ignition timing for turbulent heads and recommending opposed dual ignition for the new India engine. | ||
| View original record | contd :- -4- any figures for ignition timing on the single wave turbulent type head - such as the side valve Ricardo head which is made for Fiat and Morris cars - but have heard they require very… | ||
| Scan303 | Graph showing the necessary minimum ignition advance for full power on a 20 HP engine. | ||
| View original record | NECESSARY IGNITION ADVANCE FOR 20 H.P. (CURVE SHEWS MINIMUM ADVANCE FOR FULL POWER) ENGINE No 11-GII COMPRESSION RATIO - 5.45 LONG DURATION CAMSHAFT ANGULAR DEGREES ADVANCE BEFORE T.D.C. R.P.M. OF… | ||
| Scan304 | Graph of ignition advance curves for different Phantom engine configurations against engine RPM. | ||
| View original record | NECESSARY IGNITION ADVANCE FOR PHANTOM FLYW'L DEGREES ADVANCE BEF T.D.C STD. PHANTOM (SINGLE IGNITION) TURBULENT HEAD SINGLE IGNITION DUAL IGNITION R.P.M. OF ENGINE. Y-AXIS: 10°, 20°, 30°, 40°, 50°… | ||
| Scan305 | The factors affecting the position of the ignition lever for starting on the Phantom and 20 HP models. | ||
| View original record | X5680 25.10.28. X2129. BATTERY IGNITION ON PHANTOM AND 20 H.P. X8680 Items affecting position of ignition lever on quadrant at which ignition break should take place on retarding lever for starting… | ||
| Scan306 | Instructions for diagnosing and adjusting ignition timing and related components on 20 HP and Phantom chassis. | ||
| View original record | -2- Contd. In the case of the 20 H.P. chassis, the only difference is that the hand advance range is 40° in place of 30°, and the position on the Quadrant should be about 3/4 of the way down on the… | ||
| Scan307 | Page detailing fault analysis for ignition timing, concerning the contact breaker's make ratio and the retard quadrant position. | ||
| View original record | -3- Contd. It will probably be found that the fault lies in a combination of insufficient full retard and rather too large a make ratio on the contact breaker, and for this reason the tendency will… | ||
| Scan308 | Development of a formula to determine the ignition break position for starting the engine. | ||
| View original record | X.5680 30.10.28. BATTERY IGNITION. X.3949. Development of formula giving position of lever on quadrant, at which ignition break should take place on retarding lever, for starting engine. The position… | ||
| Scan309 | Technical analysis of engine ignition timing and spark generation. | ||
| View original record | -2- Contd. Further, the fully advanced make will occur R + 120r - d degrees before dead point. It is clear that in moving the ignition lever from full retard to full advance a make will occur if the… | ||
| Scan310 | Technical analysis of ignition spark timing and retard settings, including a formula. | ||
| View original record | -3- Contd. The circumstances may be such that it is less than 60°, in which case a spark could not be produced by retarding the lever. The fraction reckoned from the retard end of the range of the… | ||
| Scan311 | Investigating and resolving misfires on the 20-HP battery ignition system by fitting a special ballast. | ||
| View original record | BY. c. Hs. c. HHE. c. HX. X5680 EP6/H17.12.28. re. 20-HP. BATTERY IGNITION. X5680 X7720 It appears to have been established on 20-HP. chassis on test that the battery ignition is a little on the weak… | ||
| Scan312 | Testing of an experimental ballast resistance for a 20 HP battery ignition system. | ||
| View original record | X5680 To BY. from EFC. c. EP. Mx. EFC5/118.12.28. 20 H.P. BATTERY IGNITION. X 9720 Referring to EP6/H17.12.28, we are now urging from the Expl. Shop the completion of our experimental 1 1/4 value… | ||
| Scan313 | Query regarding the feasibility of raising the ignition tower without impeding access to the No.1 sparking plug. | ||
| View original record | BY. from F. SECRET. X5680 F3/M18.1.29 c. BJ. Hs. INDIA 4. BATTERY IGNITION TO WFR X.5680 LeC.2635. We send you herewith the original of You will remember that we have asked if it is possible to raise… | ||
| Scan314 | Instruction sheet detailing ignition tests on a 20 HP chassis, comparing ballast resistances and ignition systems. | ||
| View original record | RR 238 (150 BKS.) (DB 461-8-12-24) MP 306975 X5680 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E7C 25 - 3 - 1929 Order No.: WD48 Customer's No.: Ignition tests on 20 H.P. chassis 12.G IV. Tests have been made… | ||
| Scan315 | Report page on ignition performance testing with different ballast resistances at various voltages. | ||
| View original record | R.R. 238 (150 BKS.) (DB 461-9.12.24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (2) To_____________________19__ Order No. WD 48 Customer's No. __________ were experienced on the "pick up" but otherwise… | ||
| Scan316 | Ignition system performance, noting issues with magneto ignition when the engine is hot and at low speeds. | ||
| View original record | RR 238 (150 BKS.) (DD 451-9 12 24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. (3) To _________ Order No. WD 48 Customer's No. _________ standard combination of 1# value ballast resistance and 22 gauge… | ||
| Scan317 | Extract from a report suggesting a second ignition coil as a standby instead of a magneto for the 20 HP car. | ||
| View original record | X5680 Extract of report EFC2/AD4.12.29. K5792 We have the impression that the provision on the 20 HP. of complete dual ignition as on the Phantom II has been given some consideration. This, we… | ||
| Scan318 | Intermittent ignition coil failures on the 20 HP model, referencing specific chassis and a concerning comment from the Managing Director of Bosch Co. | ||
| View original record | X3485. -> S/W.......EFC. c. to Wor. c. to EP. ------- C8/C19.5.30. Weare getting rather concerned regarding the ignition coil on the 20 h.p. We have had a number of stoppages on the road due to the… | ||
| Scan319 | Battery ignition distributor rotor failures during endurance tests and recommendations for increasing insulation thickness. | ||
| View original record | X5680 Ry. from EFC. EFC9/AD20.5.30. X.5680. X.7680. BATTERY IGNITION DISTRIBUTOR ROTORS. In connection with the above my assistant's report WE.22. reads as follows :- "In connection with bench… | ||
| Scan320 | Ballast resistances and tungsten contact point failures for a 20 HP chassis for Rugeroni. | ||
| View original record | X5680. W/S. from EFC. c. N. EFC4/AD28.5.30. X.7720. BALLAST RESISTANCES FOR 20 HP. CHASSIS X.5680. RUGERONI. Referring to Whr/MacA/MA27.5.30, we would like to correct the impression that this… | ||
| Scan321 | Returned parts for a 20 HP chassis GYL-61 and correcting a previous communication error. | ||
| View original record | X 3485 N/W. EFC. A/R/G16/G29.5.30. X 2894 X 5783 RE - 20 HP. CHASSIS NO+ GYL-61. Thank you for your memo EFC3/AD28.5.30. The coil, ballast resistance, condenser, rocker arm and screw ex the above have… | ||
| Scan322 | The condition of faulty battery ignition parts from a 20 HP Chassis GYL-61. | ||
| View original record | X3485 To C. from EFC/HEW. c. EP. c. Wor. EFC absent EFC/HEW1/AD2.6.30. X.3485. X.2894. FAULTY BATTERY IGNITION PARTS X.5783. 20 HP. CHASSIS GYL-61. REF. C8/C19.5.30. These parts have been duly… | ||
| Scan323 | Confirming a verbal arrangement to change the spark plug gap for a 20/25 HP chassis with battery ignition. | ||
| View original record | X5680 EFC. absent Hs/AJL. from EFC/HEW. EFC/HEW4/AD2.6.30. X.5680. 20/25 HP. BATTERY IGNITION. This is to confirm our verbal arrangement with you to run a 20/25 chassis with opened out plug gaps. A… | ||
| Scan324 | Persistent intermittent ignition failures on chassis GYL-61 and requesting diagnostic suggestions. | ||
| View original record | X2485 S/W....... EFC c. to EP. c. to Wor. Cl2/C3.6.30. X.3485. X.2894. FAULTY BATTERY IGNITION PARTS X.5783. CHASSIS GYL-61. EFC/HEW1/AD2.6.30. I am very interested to note your report upon the coil… | ||
| Scan325 | Potential causes of intermittent ignition failure on a 20 HP. Chassis GYL-61. | ||
| View original record | (Handwritten: X3485) To C. from EFC/HEW. C. H. C. Wor. C. N. EPC absent EFC/HEW4/AD5.6.30. (Handwritten: X.3485.) FAULTY BATTERY IGNITION PARTS 20 HP. CHASSIS GYL-61. (Handwritten: X.5783.)… | ||
| Scan326 | Engine misfire caused by contact gap wear and a proposed distributor modification. | ||
| View original record | -2- EFC/HEW4/AD5.6.30 contd. having closed up to .005". Upon opening out the gap the misfire disappeared. This rather rapid closing up of the contact gap may have been due to excessive wear of the… | ||
| Scan327 | Investigation into a misfiring issue on a 20/25 HP customer chassis, caused by the ignition contact breaker gap. | ||
| View original record | X5680 WE.27. 6.6.30. X.5680. X.5783. INVESTIGATION OF MISFIRING ON BATTERY IGNITION ON 20/25 HP. CUSTOMERS' CHASSIS. A case of misfiring on the "pick up" on a customers chassis in the Repair Dept. was… | ||
| Scan328 | Seizing battery ignition contact lever pivot, with a suggestion for a self-lubricating design. | ||
| View original record | E7.C. X5680. Date 14-8-30 Ref No. WE.36 X NOS. 5680. 7680 Battery ignition contact lever pivot We have had a case to-day on 17S4 of the contact breaker lever seizing on its pivot. Although the… | ||
| Scan329 | Inquiry into cases of seizure of the battery ignition contact breaker lever on its pivot. | ||
| View original record | X5680 Hd. from EFC. c. N. EFCL/AD18.9.30. X.5680 SEIZURE OF BATTERY IGNITION CONTACT X.7690. BREAKER LEVER ON ITS PIVOT. We should like to know if you have experienced any cases of seizure of the… | ||
| Scan330 | The seizure of the battery ignition contact breaker lever on its pivot due to a lack of lubrication. | ||
| View original record | X5680 EFC. c. N. Hd/WW6/KW19.9.30. X.5680 X.7680 Seizure of Battery Ignition Contact Breaker Lever on its pivot. With reference to your EFC1/ADL8.9.30. we have had several cases of seizure of this… | ||
| Scan331 | Seizure of the battery ignition contact breaker lever on its pivot. | ||
| View original record | X5680 N-W. All/H22.930. SEIZURE OF LEVER OF BATTERY IGNITION CONTACT BREAKER ON ITS PIVOT. X.5680 X.7880 Thank you for your EFCL/ADL5.9.30. We have had several cases of sticking rocker arms. In each… | ||
| Scan332 | The seizing of the battery ignition contact lever pivot due to lubrication and rust issues. | ||
| View original record | Y5680 To E. from EFC. c. Ev. EFC5/AD23.9.30. X.5680 X.7680. BATTERY IGNITION CONTACT LEVER PIVOT. We have experienced several cases of the battery ignition contact breaker lever seizing on its pivot.… | ||
| Scan333 | Modifications for a self-lubricating pivot pin, tested on chassis 10-G3. | ||
| View original record | EFC5/AD23.9.30 contd. -2- and lock washer. This was run on chassis 10-G3. and no trouble was experienced. It had not the self-lubricating feature now proposed. May we suggest the following two… | ||
| Scan334 | Letter to Mr. G.R.N. Minchin regarding 20 HP ignition, misfiring, and condenser points. | ||
| View original record | X5680 EFC3/AD. 24th September, 1930. X5680 X7700 X.6037. X.2894. Mr. G.R.N. Minchin, Messrs. Peto & Radford, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, With regard to that portion of your… | ||
| Scan335 | Letter to Messrs. Peto & Radford regarding the testing of lower capacity condensers to fix a misfiring issue. | ||
| View original record | Mr. G.R.N. Minchin, Messrs. Peto & Radford, London, S.W.1. 24th September, 1930. -2- We are having made a range of lower capacity condensers for test and I propose to bring you a low capacity… | ||
| Scan336 | Material changes for the battery ignition contact lever pivot to prevent corrosion. | ||
| View original record | EFC. c. E. c. Ry/RD. X5680 Ry5/G29.9.30. X.5680 X.7680 BATTERY IGNITION CONTACT LEVER PIVOT. I do not think that the combination suggested viz. stainless steel, which must be soft, working with… | ||
| Scan337 | Adjustments to the distributor and sparking plug gaps for the 20/25 HP ignition system. | ||
| View original record | X5680 EFC. c. By/RD. Ey6/C4.11.30. X.5680. 20/25 HP. IGNITION SYSTEM. X.5690. X.8712. It would appear that our gap as provided in the distributor from the rotating finger to the aluminium casting is… | ||
| Scan338 | Experiments investigating sparking over within the distributor of a 20/25 ignition system. | ||
| View original record | X5680 By. from EFC. c. Hs/AJL. EFC4/ADL9.11.30. X. 5680. 20/25 IGNITION SYSTEM. X.5690 X.8712. Experiments carried out some time ago indicated that there was only a moderate margin of equivalent… | ||
| Scan339 | Tests of the 20/25 ignition system, finding the coil voltage insufficient and requesting a new design. | ||
| View original record | X5680. Ey. from EFC. EFC7/AD4.12.30. X.5680. 20/25 IGNITION SYSTEM X.5690 X.8712. As referred to in our EFC4/AD4.9.11.30 we have now carried out a test on each of two 20/25 NP chassis one experimental… | ||
| Scan340 | Proposal to test a 20/25 HP engine with an interlaced crank, questioning the ignition coil's performance at high speeds. | ||
| View original record | X5680 EFC. c. E. (struck through) c. BY/SS. (struck through) BY12/G.12.12.30. [Stamp: RECEIVED 12 DEC 1930 HS] 25 HP. CHASSIS WITH INTERLACED CRANK. --------------------------------------- It has been… | ||
| Scan341 | The 20/25 HP coil ignition, advising that spark plug gaps should be checked (.020) and plugs kept clean, rather than replacing the coil. | ||
| View original record | X5680 H. (struck through) c. EFC. c. Hs/Bm (struck through) BY/11/G.15.12.30. RECEIVED DEC 1930 X699 20/25 HP. COIL IGNITION. It is evident to us now that the present coil is working more near its… | ||
| Scan342 | Investigation into battery ignition misfiring on the 20/25 HP engine, leading to a reduction in sparking plug gap size. | ||
| View original record | R. from EFC. c. Sg. c. HY. c. Wor. E. X5680. EFC/ADL/7.12.30. X.5680. 20/25 HP. BATTERY IGNITION. X.699. The use of the high compression on the 20/25 engine has caused the battery ignition to be… | ||
| Scan343 | Sparking plug voltage tests carried out on 20/25 and 40/50 chassis. | ||
| View original record | EFC/AD/7.12.30 contd. -2- The sparking plug voltage tests were carried out on both a 20/25 and 40/50 chassis and the maximum sparking plug voltages under the worst conditions of acceleration from 10… | ||
| Scan344 | Test report on plug voltage at various plug gaps and water temperatures for different engine cylinders. | ||
| View original record | -3- EFC1/AD17.12.30 contd. (b) Plug gaps .025" Water temperature 95 to 100°C. Cylinder No. Plug voltage 1 5300 3 6020 6 4700 (c) Plug gaps .030" Water temperature 70°C. Cylinder No. Plug voltage 1… | ||
| Scan345 | Analysis of high sparking voltages and ignition performance on the 20/25 chassis. | ||
| View original record | EFC1/AM.7.12.30 contd. -4- (b) Plug gaps .030" Water temperature 70°C. Cylinder No. Plug voltage. 1 8500 2 9700 3 9200 4 9700 5 7550 6 7550 Average maximum voltage per plug 8870. The results of the… | ||
| Scan346 | Sparking plug gaps, coil windings and distributor voltage for 20/25 and 40/50 chassis. | ||
| View original record | EFC1/AM17.12.30 contd. -5- hope to be able to revert to .030" sparking plug gaps on both 20/25 and 40/50 chassis. At the same time it may transpire to be necessary to increase the effective spark over… | ||
| Scan347 | Ignition options for a six-cylinder engine with an 'interlaced' crank. | ||
| View original record | X5680. Ry. from EFC. c. E. c. Ry/SS. EFC2/AM.8.12.30. X.5680. SIX CYLINDER ENGINE WITH "INTERLACED" CRANK. Answering your Ry12/Cl2.12.30 electrically speaking the 30° interval would be just… | ||
| Scan348 | Examination report on faulty ignition units removed from chassis G.L.N.15. | ||
| View original record | E7C. X5680 Ref NO. WE69 Date 30-12-30 XNOS 5783 . 5680. Faulty ignition units ex chassis G.L.N.15. We have examined these units and find the ballast resistance and condenser to be OK. The coil tested… | ||
| Scan349 | Faulty coil operation and a proposed modification to the production test specification. | ||
| View original record | W.E. 69 contd (2) We therefore consider from the available evidence that the faulty operation of the coil was due to impurities either in the paraffin wax used for impregnation or in the insulating… | ||
| Scan350 | The examination and testing of ignition units, detailing a fault found with the coil due to impure paraffin wax. | ||
| View original record | By. from EFC. c. Sft/Mr Brock. X5680 EFCL/AD30.12.30. X.5680. IGNITION UNITS EX GLN-15. X.5783. We have duly examined and tested these units. With the ballast resistance and condenser nothing was… | ||
| Scan351 | Test report on a battery ignition contact breaker to determine when sparking occurs. | ||
| View original record | WE.81. X6095. 20.2.31. X.6095/6. X.2918 X.6890 G119 X.7690. ECLIPSE TESTS OF BATTERY IGNITION CONTACT BREAKER. We have carried out tests on a standard contact breaker to ascertain whether sparking… | ||
| Scan352 | Request for six experimental ignition distributor cam and rotor sets for testing purposes. | ||
| View original record | X6095 RHC c - Hs. BY/RD2/W.15-6-31. X6095 X6096 RECEIVED 1931 JUN 15 Re :- Ignition Distributors. 20/25 H.P.and 40/50 H.P.Chassis.Lec.2917. We send you herewith Blue Prints of :- D.73370. Cam.… | ||
| Scan353 | Investigation into coil ignition misfires on the 20/25 HP chassis during full load pick up. | ||
| View original record | X6095. To R. from Hs/HEW. c. Sg. Mgr. c. Rg. E. c. Ey. Da. Hs/HEW2/AM 3.8.31. COIL IGNITION ON 20/25 HP. CHASSIS. We have been trying for sometime to eliminate misfires on the full load "pick up" on… | ||
| Scan354 | Comparative test of ignition coils from various manufacturers and the development of a superior modified coil. | ||
| View original record | -2- manufactured by Telco-Remy, De Jon, Marelli and Lucas respectively these being representative of U.S.A. Continental and British practice. As these coils, owing to the relatively high inductance of… | ||
| Scan355 | Continued list of manufacturing and performance advantages of a coil design, compared to other makers. | ||
| View original record | HS/HEW2/ADL.3.8.31 contd. -3- (a) Economy in manufacture using less of the more expensive secondary wire and owing to the H.T. being at the centre, a metal case which allows of better heat… | ||
| Scan356 | Clarifying the type of ignition coil used on a 25 HP car at Brooklands and updating on the design of an experimental coil. | ||
| View original record | To R. from Hs/Wst. c. Sg. c. Wor. Ry. X6045 Hs/HEW1/A11.9.31. X6045 Y6058 With reference to the last paragraph of R1/M28.8.31 referring to the ignition coil on the 25 HP. car at Brooklands, this coil… | ||
| Scan357 | Recommendations for updating the battery ignition system. | ||
| View original record | 6095 To R. From Ha/Wst. c. to Sg. Wor. c. to E. Da. c. to By. Ha/Wst.3/MJ.14.10.31. X6096 BATTERY IGNITION. We understand that the question of bringing our battery ignition up to date will shortly… | ||
| Scan358 | List of advantages for an outside primary coil, a reduced capacity circular condenser, and a lighter contact breaker lever. | ||
| View original record | 15.10.31. Outside primary coil. The advantages of this are :- (a) More efficient interlinkage due to windings being closer to the core. (b) Better magnetic circuit resulting in increased inductance… | ||
| Scan359 | List of suggestions for improvements to ignition system components. | ||
| View original record | -2- Distributor with brass inserts and nickel rotor also longer distance to earth. (a) Combination of sparking points used on other makes and noticed to give better results than stainless steel. (b)… | ||
| Scan360 | Proposed change in electrical ignition coil design, comparing Delco with Bosch and Lucas models. | ||
| View original record | HS/WST. FROM R. C. to SG. WOR. BY. X6095 R5/M28.11.31. Sent off 30.11.31. ELECTRICAL IGNITION. X.6017. X.6118. X.6095. COILS. We arranged to proceed with a change of design of coil with the external… | ||
| Scan361 | The best materials to prevent seizing of the contact lever pivot in a battery ignition distributor. | ||
| View original record | X6095. By. from Hs/Wst. Hs/Wst.3/ADL4.12.31. LUBRICATION OF BATTERY IGNITION DISTRIBUTOR CONTACT LEVER PIVOT. During discussion with Mr. A.E.Watson on Friday last he stated that they had carried out… | ||
| Scan362 | Improvements made to a battery ignition system compared to Delco. | ||
| View original record | COPY. BY. HS/WST. } FROM R. & E. 86095. R1/M21.12.31. X6095/6 C. to - SG. WOR. BATTERY IGNITION. We have done the following to improve ignition on our earlier system, and Delco: (1) Adopted Delco… | ||
| Scan363 | Proposal to remove the magneto from the 20/25 chassis based on experimental test results. | ||
| View original record | To R. & E. from Hs/Wst. c.c. HY. c.c. For. Rg. X6095 Hs/wst.5/AD25.1.32. MAGNETOS ON 20/25 CHASSIS ========================= X6063 We would suggest that it is now opportune for us to delete the… | ||
| Scan364 | Potential removal of the magneto from the 20/25 chassis and the required conditions. | ||
| View original record | Y6095 HS To R. from Sg. Copy to E.Hs. or. BY. X 6063 Sg15/ER7.1.32 Magnetos on 20/25 Chassis. Referring to Hs/est.5/AD25.1.32 we would not be agreeable to the magneto being/deleted unless a spare coil… | ||
| Scan365 | The lubrication of the make and break lever pin for the 20/25 HP battery ignition. | ||
| View original record | WST F c. Hs. X6095 BY/Cgh.1/G.6.2.32. 20/25 HP. BATTERY IGNITION. E.2/M.30.1.32. Nothing further has been done in connection with providing means of lubricating the pin carrying the make and break… | ||
| Scan366 | Dimensions and lubrication for a post carrying the make and break lever for a 20/25 battery ignition system. | ||
| View original record | BY/CGH. FROM E. Copy to - HS. X6095. E2/M30.1.32. X.6095. 20/25 BATTERY IGNITION. We should like to know if anything has been done in connection with the modification to lubricate the post carrying… | ||
| Scan367 | Letter from the National Accumulator Company regarding a misfiring issue on 20 HP cars. | ||
| View original record | X6095 NATIONAL ACCUMULATOR COMPANY LIMITED. TELEPHONE: SLOANE 6368. TELEGRAMS: NATIONACCU, SOWEST, LONDON. ADMINISTRATIVE OFFICES: 50, GROSVENOR GARDENS, LONDON, S.W.I. 7th March, 1932. H.E. West,… | ||
| Scan368 | The repair of a B.T.H. Magneto for a Kestrel IB engine, involving a Textolite timing wheel. | ||
| View original record | X6095 Mr. Royce. [strikethrough] c to Mr. Coverley. Shipping Office. Mr. West. A2/11. E/6. 7/S/32 Re: B.T.H. Magneto 913389 ex Type Test engine Kestrel IB. No. 20. In reply to your memo Roy/DN1/HB. of… | ||
| Scan369 | Letter to Mr. G.R.N. Minchin regarding the exchange of spare ignition units and a misfiring issue on a 20HP vehicle. | ||
| View original record | X6095. HS/Wst.7/MA. March 8th, 1932. Mr. G.R.N.Minchin, 50 Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, With reference to your letter of the 7th, inst., we shall be pleased to exchange your… | ||
| Scan370 | Letter from the National Accumulator Company regarding experimental ignition units and new batteries. | ||
| View original record | X6095. NATIONAL ACCUMULATOR COMPANY LIMITED. TELEPHONE: SLOANE 6368. TELEGRAMS: NATIONACCU, SOWEST, LONDON. ADMINISTRATIVE OFFICES: 50, GROSVENOR GARDENS, LONDON, S. W. I. 9th March, 1932. H. E. West,… | ||
| Scan371 | Letter to Mr. G.R.N. Minchin about sending new parts to fix a misfiring issue. | ||
| View original record | X6095. Hs/Wst.2/MA. March 10th, 1932. Mr. G.R.N. Minchin. 50 Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, I have sent off to you an up-to-date coil, condenser, ballast resistance and a new set… | ||
| Scan372 | Arranging the despatch of parts to a customer free of charge. | ||
| View original record | X6095. D/BP. From Hs/Wst. c. to G/MT. Hs/Wst.3/MA.10.3.32. Please arrange to despatch to Mr. G.R.N.Minchin, 50, Grosvenor Gardens, London, S.W.1., one coil, condenser, ballast resistance and set of… | ||
| Scan373 | Letter from National Accumulator Company Limited regarding the testing and return of ignition parts. | ||
| View original record | X6095. NATIONAL ACCUMULATOR COMPANY LIMITED. TELEPHONE: SLOANE 8368. TELEGRAMS: NATIONACCU, SOWEST, LONDON. ADMINISTRATIVE OFFICES: 50, GROSVENOR GARDENS, LONDON, S. W. I. 11th March, 1932. H.E. West,… | ||
| Scan374 | Correspondence regarding ignition system issues, including spark plug gaps, distributor performance, and coil insulation. | ||
| View original record | HS/WST.) FROM R. E. ) (AT Le Canadel.) 46095 R2/M.4.4.32. Sent from WW. 18.4.32 C. to SG. WOR. PN. 20/25 IGNITION. K.6095 My further inspection of the above says that the plugs, which are particularly… | ||
| Scan375 | The ignition and spark plug types for the 20/25 model. | ||
| View original record | X6095 S/W To Hs. from Sg. re 20/25 Ignition. Sg3/E22.4.32 Referring to R2/M14.4.32 I meant to have asked you yesterday but forgot, how it was that the plugs on R's car were of the single point type as… | ||
| Scan376 | Requesting the return of loaned ignition parts to Mr. G.R.N. Minchin. | ||
| View original record | X6095. D/BP. From Hs/Wst. c. to G/MT. Hs/Wst.3/MA. 5. 5. 32. We wish to return to Mr. G.R.N. Minchin, 50 Grosvenor Gardens London, S.W.1 one ignition coil, ballast resistance, and contact points which… | ||
| Scan377 | Experiments conducted on a 25HP ignition system, detailing tests on spark plugs and troubleshooting low-speed acceleration issues. | ||
| View original record | RE/WST FROM R. C. to GG. WOR. BY. C. to PH. R. RM. 8609S. R2/M30.5.32. x1918 x4425 25HP. IGNITION. While at La Canadel we made several experiments on the 25HP. ignition, one or two by Dodd, but… | ||
| Scan378 | Technical memorandum regarding 25HP ignition systems, spark plug testing, and compression pressure analysis. | ||
| View original record | X6095 R. From Hs/Wst. c. to SS. c. to Mr. c. to By. c. to E. c. to FN. Hs/Wst.7.AMA.1.6.32. 25HP IGNITION. X1918 Re. R.2/M.30.5.32., we are arranging to send you, three of the K.L.G plugs mentioned.… | ||
| Scan379 | Patent specification 321,247 for preventing unauthorized use of motor vehicles and boats. | ||
| View original record | S/W To Hs/Wst. from F. Copy to Wor. X6095 F.1/JL.26.1.33. PATENT SPECIFICATION 321,247. Improvements in or relating to Means for Preventing the Unauthorized use of Motor Vehicles and Motor Boats. With… | ||
| Scan380 | Responding to a patent specification for an ignition locking system. | ||
| View original record | W/S. To F. From Hs/Wst. C. Wor. X6095 Hs/Wst.3/AD30.1.33. RE : PATENT SPECIFICATION NO. 321247 Replying to your F1/JL26.1.33, we have looked over the specification and consider that the idea is… | ||
| Scan381 | Patent Specification No. 321247, requesting the return of a related document. | ||
| View original record | S/W To Hs/Wst. from F. [Handwritten: WST X6095] Copy to Wor. F.1/JL.31.1.33. PATENT SPECIFICATION No. 321247. In reply to your Hs/Wst.3/AD.30.1.33, we have noted the contents thereof, and if you will… | ||
| Scan382 | Cover memo attaching Patent Specification No. 321247. | ||
| View original record | X6095 W/S. To F. from Hs/Wst. c. to Hor. Hs/Wst.1/KT.1.2.33. With reference to F.1/JL.31.1.33. we attach herewith Patent Specification No. 321247. Hs/Wst. | ||