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 Lion Spring Company regarding the manufacturing process of valve springs from Swedish wire.
| Identifier | ExFiles\Box 158\4\ scan0101 | |
| Date | 4th November 1936 | |
| TELEGRAMS: "SPRINGS, OLDBURY." TELEPHONE: BROADWELL 1073. TRADE MARK X1360 CONTRACTORS TO ADMIRALTY, WAR OFFICE, AIR MINISTRY, &C. THE LION SPRING COMPANY, Ltd., ESTABLISHED 1895. Manufacturers of HIGH-CLASS SPRINGS of every Description. OLDBURY, Birmingham. LONDON REPRESENTATIVES: JOHN WILDE & SONS, FINSBURY PAVEMENT HOUSE, E.C.2. PHONE: METROPOLITAN 5884. Ref. DN/NM. Messrs. Rolls-Royce Ltd., D E R B Y. November, 4th. 1936. Dear Sirs, REF: Rm{William Robotham - Chief Engineer}/II/MJ. Replying to your letter of the 2nd. instant re Valve Springs from Swedish wire, these are coiled in the hard condition and the only subsequent heat treatment is the usual normalizing process. Yours faithfully, For and on behalf of THE LION SPRING COMPANY LTD. General Manager and Secretary. | ||