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 Jonas Woodhead & Sons Ltd. regarding the testing of special laminated springs.
| Identifier | ExFiles\Box 42\3\ Scan217 | |
| Date | 16th August 1928 | |
| X3854 JONAS WOODHEAD & SONS. LTD., TRADE MARK MANUFACTURERS OF LAMINATED SPRINGS FOR ROLLING STOCK ROAD OR RAIL REGD. OFFICE AND WORKS: KIRKSTALL ROAD, LEEDS. LONDON OFFICE: 17 VICTORIA STREET, S.W.1. LEEDS. TELEPHONES: LEEDS 20814 AND 20815. (PRIVATE BRANCH EXCHANGE) LONDON VICTORIA 6423 (2 LINES). ON ADMIRALTY WAR OFFICE COLONIAL AND ALL LISTS TELEGRAMS: "FORGE, LEEDS". CODE: 5TH. EDITION A.B.C. ESTABLISHED 1850. Messrs. Rolls Royce, Limited., DERBY. DATE: 16th August 1928. YOUR REF. ROY{Sir Henry Royce}/DnS/EB27728. OUR REF. THS/HB.{C. E. Harcombe} Handwritten: 1 1/2" Deflection from normal load Similar re-bounds 6,600 / hour YOUR ORDER NO: 76809 - SPECIAL SPRINGS. Dear Sirs, We are much obliged for your favour of the 27th ulto. relating to the behaviour of the above springs under test, and we must take this opportunity of thanking you for your courteous interest in the matter. We should be glad if you would let us know the number of vibrations to which these springs were subjected as you give the time in hours, which is not very illuminating unless we know the number of strokes per minute. At the same time we should be pleased if you would also inform us as to the maximum deflection these springs received whilst on test. Yours faithfully, JONAS WOODHEAD & SONS, LTD. Handwritten: Hs{Lord Ernest Hives - Chair} Kindly [signature] 17/8/28 | ||