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 North & Sons Ltd. regarding the correction and strengthening of contact finger springs.
| Identifier | ExFiles\Box 61b\1\ scan0161 | |
| Date | 22th April 1933 | |
| x6119 THE BRITISH MADE Watford SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. H.{Arthur M. Hanbury - Head Complaints} TANSLEY WITT, F.C.A. RECEIVER & MANAGER. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: WATFORD, 4422 (2 LINES) TELEGRAMS: AEROMAGS WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, CROWN AGENTS FOR THE COLONIES, INDIA OFFICE. Ref. HPB/MMW Your ref. April 22nd 1933. Messrs. Rolls-Royce Limited., Nightingale Road, Derby. WST For the attention of Mr. West. Dear Sirs, I beg to refer to the 4 Contact Fingers D.B. 78 returned for correction under cover of your Order No. R 2879 of the 19th instant. New springs have been fitted to these Contact Fingers and same have been returned to you by post this morning. These springs are stronger than those originally fitted and when tested in one direction conform to the test of 1.1lb. The tension of these springs is the best we can manage with this thickness material and I should be pleased to have your report as to their suitability in order that we may use a thicker material should you deem it necessary to further strengthen the spring. In this event, it will be necessary for us to place an order for the thicker spring steel, as we have no stock of same at the moment. Yours faithfully, NORTH & SONS LIMITED., H.{Arthur M. Hanbury - Head Complaints} Tansley Witt. Receiver & Manager. ws | ||