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 exchange and features of spark plugs for racing engines.
| Identifier | ExFiles\Box 162\6\ img021 | |
| Date | 12th December 1921 | |
| X4425 Lodge Plugs Limited. Rugby. Directors: F.{Mr Friese} Alfred Hopps Bernard Hopps Alec. M.{Mr Moon / Mr Moore} Lodge F.{Mr Friese} Brodie Lodge Telegrams: 'Lodge, Rugby.' Telephone: Rugby 276 (2 lines). Private Branch Exchange. Code Used: A.B.C. (5th Edition). YOUR REF. OUR REF. AML/MAW Messrs. Rolls-Royce Limited, Nightingale Road, D E R B Y. Date 12 December 1921 FOR THE ATTENTION OF MR. HIVES Dear Sirs, We have to-day sent you 6 Model Z.27 Lodge plugs in exchange for the 6 Model C returned, as suggested in our letter of the 8th inst., You will see that the insulator at the sparking end of these plugs is very well protected from heat, and we do not expect you will get the glaze melting with these plugs. For this reason we have sent them all fully glazed, but should the glazing give trouble we can remove it. We fear the spark gap will not be quite as good as the 3 point gap, but the plug we have sent is a pattern we make for racing engines. Yours faithfully, LODGE PLUGS LIMITED. [Signature] DIRECTOR Enc: (Invoice) ENCLOSURE Nº 691 "JUSTSO" ENCLOSURE Nº 691 "JUSTSO" | ||