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 regarding the supply of modified Bentley spark plugs with flush copper electrodes.
| Identifier | ExFiles\Box 162\6\ img233 | |
| Date | 6th November 1933 | |
| Telephone, 276 RUGBY (2 lines) Established 1904. Telegrams, 'LODGE, RUGBY' Lodge Plugs Limited, Rugby. Messrs. Rolls-Royce Ltd., D E R B Y. Our Ref. BH/EW. Date: 6 November 1933. All letters must be addressed to the Company, not to individuals For the attention of Mr. Robotham. Dear Sirs, You will recollect you returned to us a Bentley plug in which the copper electrode showed signs of erosion under the lead fuel conditions, and you requested us to supply you with a set of Bentley plugs with the copper left flush with the insulation so that there is practically no copper exposed to the gases. We have pleasure in sending you under separate cover 6 - X365 plugs with flush copper, made in accordance with your request, and we should be very glad to have your report on these in due course. Yours faithfully, LODGE PLUGS LIMITED. Bernard Hopps. DIRECTOR | ||