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 K.L.G. Sparking Plugs regarding the use of W.5 nickel alloy instead of Mangonic for earth points to reduce erosion.
| Identifier | ExFiles\Box 162\4\ img294 | |
| Date | 19th April 1937 | |
| 6001L K·L·G Sparking Plugs Limited CONTRACTORS TO THE AIR MINISTRY, ADMIRALTY, WAR OFFICE & FOREIGN GOVERNMENTS. Sole Manufacturers of “KLG” Sparking Plugs, also Jigs and Precision Tools PUTNEY VALE, LONDON, S.W.15 Telephone Putney 2671 (Four Lines) Telegrams ‘Kaelgee, Phone, London.’ PLEASE REFER TO TECHNICAL DEPT. AND QUOTE REFERENCE CMC/MEN IN YOUR REPLY 19th April, 1937. Messrs. Rolls-Royce, Ltd., Derby. Gentlemen, For the attention of Mr. H.E. West-Rm{William Robotham - Chief Engineer}/Wst./AP. We beg to acknowledge receipt of your letter of April 16th and in reply would inform you that an answer to your communication of April 6th was despatched to you on the 7th. With regard to your letter of March 31st ref. Rm{William Robotham - Chief Engineer}/Wst. 6/AP, we would advise you that we have now decided to use a nickel alloy known as W.5 in place of Mangonic which was used originally for earth points. Our experiments have shown that W.5 material gives less erosion. We quite appreciate that point erosion is a serious matter with these plugs and you may rely on our continuing experiments to see whether we cannot improve things still further. With reference to our letter of February 4th in which we undertook to make up a sample to your requirements, we wish to confirm the Writer's conversation on the telephone with Mr. West when he explained the difficulty that we have found and agreed to discuss the matter in detail when the Writer visits Derby on Wednesday. Yours faithfully, p.p. K.L.G. SPARKING PLUGS LIMITED. R.{Sir Henry Royce} Carington Director. | ||