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).
Two new types of contact breakers with tungsten composition contacts received from the L.P.S. Co. for observation.
| Identifier | ExFiles\Box 35\5\ scan 041 | |
| Date | 12th July 1918 | |
| To Mr. Coverley, from EFC. EFC/AT12.7.18. X.2894.-CONTACT BREAKER CONTACTS IN TUNGSTEN. Please note we have received from the L.P.S. Co. two Contact Breakers fitted with Tungsten Composition Contacts of two distinct types. The reference Number of the one marked "L" is 454, the one which is not marked is 425. These may be obtained on application at the Stores. N.B. Would you kindly watch the behaviour of the two separate types and advise us of the results. EFC. | ||