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 L.P.S. Electrical Co. about a new composition of Tungsten Contact for magnetos.
| Identifier | ExFiles\Box 35\5\ scan 011 | |
| Date | 15th September 1917 | |
| X.2894. Telephone: VICTORIA 7346. Telegrams: 'ENGINEYOR. SOWEST. LONDON' Codes: A.B.C. 5TH EDITION. L.P.S. Insulating Sleeving A MOST CONVENIENT AND EFFICIENT INSULATION FOR ALL INTERNAL CONNECTIONS IN ELECTRICAL APPARATUS. THE L.P.S. ELECTRICAL CO. (LERMAN, BRITISH OF RUSSIAN ORIGIN) YOUR REFERENCE EFC2/T1517 OUR REFERENCE L/516 TUNGSTEN CONTACTS. INSULATING MATERIALS. TEST CLIPS. 14 Howick Place, Westminster, London S.W.1. 15th Sept. 1917. Messrs. Rolls Royce Limited, Nightingale Road, DERBY. Dear Sirs, TUNGSTEN CONTACTS FOR MAGNETO SERVICE. Our Works have made considerable headway in their experiments with a new composition of Tungsten Contact for Magnetos. As you have probably found in experiments which you have been making with Tungsten Contacts, the spark of a Magneto develops such a great heat that it causes disintegration of the Tungsten. The new composition which we have got out is intended to meet this special condition, and we have now had a number of our Contacts running on some Magnetos with, so far as we can tell at present, satisfactory results. We would like you to test these Contacts on your instruments, and would therefore be glad if you would let us know the dimensions of the Contacts that you would require, and we | ||