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 Lodge Plugs Limited concerning the supply and development of various spark plugs.
| Identifier | ExFiles\Box 162\6\ img343 | |
| Date | 23th April 1937 | |
| Lodge Plugs Limited, Rugby. Telephone, 2076 RUGBY (2 lines) Established 1904 Telegrams, 'LODGE, RUGBY' 6002b Messrs. Rolls-Royce Ltd., DERBY. Your Ref. Our Ref. BH/EW. Date 23 April 1937. DIRECTORS: J.{Mr Johnson W.M.} ALFRED HOPPS BERNARD HOPPS ALEC. M.{Mr Moon / Mr Moore} LODGE F.{Mr Friese} BRODIE LODGE. All letters must be addressed to the Company, not to individuals For the attention of Mr. West. Dear Sirs, Confirming the writer's interview with Mr. West yesterday, we are putting in hand 4 dozen A5B/4. and 4 dozen RA5/4. 18 mm. thread platinum electrode plugs, and we shall be glad to receive your confirming order for these. We are going into the question of submitting you a ceramic plug suitable for your Phantom III. engine, and are making this 17 mm. reach, 13 mm. barrel. We will also develop a ceramic plug for the Bentley and the 30 h.p. Rolls. In regard to your request for plugs for your sleeve valve engine, on giving this matter our careful consideration we cannot do better than recommend you to try the RA14/4. platinum electrode plug. We think this plug should be entirely satisfactory and shall be glad if you can arrange for a test. We hope shortly to submit you a ceramic screened aircraft plug for test. Yours faithfully, LODGE PLUGS LIMITED. Bernard Hopps DIRECTOR. | ||