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 The Lodge Sparking Plug Company regarding testing and supply of various spark plug models.
| Identifier | ExFiles\Box 79\1\ scan0132 | |
| Date | 12th September 1918 | |
| X601 The Lodge Sparking Plug Company Limited. Rugby. Telegrams: "Lodge Rugby" Telephone: Rugby 235. UNDER GOVERNMENT CONTROL. Messrs.Rolls-Royce, Ltd. Nightingale Road DERBY RECEIVED 13 SEP 1918 YOUR REF EH2/LO6918 OUR REF AML/FB Date 12 September 1918 For the attention of Mr.Hives Dear Sirs, We thank you for your letter of the 6th inst. advising us about the results of your tests with the 12 KR5 plugs. The plugs to which you refer have not yet arrived here, but we hope to receive them shortly. We note what you say about the Model KR4 plugs and are glad to hear that they are standing up well. Confirming our conversation on the telephone yesterday afternoon, we have to-day sent you by Passenger Train, 6 Doz. plugs as follows:- 2 Doz. D11 1 1/2 Doz. KR5 1 1/2 Doz. Z11 & 1 Doz. Z10 and we should be much obliged if you would arrange to give all of these plugs as long a test as possible on production engines, and then possibly test some of them for pre-ignition on your experimental engine on Tuesday afternoon [Logos on left margin:] SOCIETY OF MOTOR MANUFACTURERS & TRADERS THE CYCLE AND MOTORCYCLE TRADES UNION FOUNDED 1890 INCORPORATED 1910 THE MOTOR TRADE ASSOCIATION S.B.A.C SOCIETY OF BRITISH AIRCRAFT CONSTRUCTORS ENGINEERING EMPLOYERS FEDERATION | ||