From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from Bosch Limited responding to an enquiry about aero plugs and requesting further engine details.
| Identifier | ExFiles\Box 58\2\ Scan111 | |
| Date | 1st June 1934 | |
| TELEPHONE: SHEPHERDS BUSH 2080 (4-LINES) MAGNETOS, DYNAMOS, ELECTRIC STARTERS, SPARKING PLUGS, BICYCLE LIGHTING SETS, WINDSCREEN WIPERS. DIRECTORS: P. J.{Mr Johnson W.M.} A.{Mr Adams} CLAUSEN, (BRITISH OF DANISH ORIGIN) J.{Mr Johnson W.M.} W. HOUGHTON. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} JONES H.{Arthur M. Hanbury - Head Complaints} P. BAZELEY BOSCH LIMITED SOLE AGENTS IN GT. BRITAIN & IRELAND FOR BOSCH PRODUCTS MADE BY ROBERT BOSCH A.G. STUTTGART. HEAD OFFICES: LARDEN ROAD, ACTON LONDON. W. 3. TELEGRAMS: ELECBRIGHT, ACT, LONDON DIRECTION INDICATORS, HORNS, LAMPS, FORCED LUBRICATION EQUIPMENT FOR GREASE AND OIL, ELECTRIC TOOLS. GLASGOW: 222, BOTHWELL ST.{Capt. P. R. Strong}, C. 2. PHONE: CENTRAL 3154. GRAMS: ELECBRIGHT, GLASGOW. Handwritten: s19/2a. BEC/DO 1st June 1934. Messrs. Rolls-Royce Ltd, DERBY. Dear Sirs, Your Ref: HS{Lord Ernest Hives - Chair}/WST1/MA. Further to your enquiry for particulars of aero plugs we have taken this matter up with the Works and in order that they can recommend the most suitable type of plug for your purpose they have requested us to obtain particulars of the engines on which these plugs are to be used, such as compression ratio, etc, which would enable them to recommend the most likely type of plug to meet your requirements. We take it you would not mind whether the plugs had stone or mica insulators so long as they served your purpose, and we should be pleased to hear also whether you insist upon plugs of detachable execution. It would help considerably if you would not mind telling us the make and type of plugs you have already used on these engines with satisfactory results, or the make and type of plug which has most nearly met your requirements, and in what respects these plugs do not quite meet the case, for example, whether the plugs do not meet the heat and compression requirements, or whether they are liable to sooting and oiling up. Awaiting the favour of your reply, Yours faithfully, BOSCH LIMITED | ||