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 requesting tests on new model KR5 spark plugs.
| Identifier | ExFiles\Box 79\1\ scan0122 | |
| Date | 2nd August 1918 | |
| The Lodge Sparking Plug Company Limited. Rugby. Telegrams: "Lodge Rugby". Telephone: Rugby 235. UNDER GOVERNMENT CONTROL. Messrs. Rolls-Royce, Ltd. Nightingale Road DERBY YOUR REF OUR REF: BH/FB Date: 2 August 1918 For the attention of Mr. E.{Mr Elliott - Chief Engineer} W. Hives Dear Sirs We have been experimenting with a modified construction of the Model KR3 plug, which we have designated Model KR5. We are sending you herewith, a dozen of these Model KR5 plugs fitted with steel pins, and 5 fitted with copper pins, these being all the copper pin plugs which we have made up at the moment. We should be much obliged if you would have the 1 Doz. KR5's with steel pins tested and compared against the standard KR3 plug, and the 5 KR5 plugs fitted with copper pins tested and compared as against the KR4 plug. We should be much obliged if you would have these tests carried out for us at your earliest convenience, as we are particularly anxious to get some information on this Model KR5 plug. Thanking you in anticipation, Yours faithfully, THE LODGE SPARKING PLUG CO. LTD. Bernard Hopps DIRECTOR ENCLOSURE Nº 53 Encl. (17 Plugs) [Logos on left hand side] THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS THE CYCLE AND MOTORCYCLE MANUFACTURERS AND TRADERS UNION LTD. FOUNDED 1890 INCORPORATED 1910 THE MOTOR TRADE ASSOCIATION THE SOCIETY OF BRITISH AIRCRAFT CONSTRUCTORS S·B·A·C ENGINEERING EMPLOYERS FEDERATION | ||