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 Ferranti Ltd regarding complaints of sticking instruments due to foreign matter in the magnet gap.
| Identifier | ExFiles\Box 168\5\ img172 | |
| Date | 11th December 1929 | |
| X3498. ALL COMMUNICATIONS SHOULD BE ADDRESSED TO THE COMPANY FERRANTI LTD ELECTRICAL & GENERAL ENGINEERS. HOLLINWOOD. LANCASHIRE. LONDON OFFICE. BUSH HOUSE, W.C.2. TELEGRAMS: FERRANTI, ESTRAND LONDON TELEPHONES: TEMPLE BAR 9325 & 6878 TELEGRAMS: FERRANTI, HOLLINWOOD TELEPHONE: Failsworth 161. (Private Branch Exchange) JB/GM. 11th December 1929. Messrs. Rolls-Royce Ltd, DERBY. Your Ref. -- Our Ref. Radio/G.R. For the attention of Mr. Fowler Clark. Dear Mr. Fowler Clark, I thank you for your letter of the 10th inst., from which I fully understand the general position. We have certainly had some complaints from time to time with regard to sticking of the movement of our small instruments, not due to any mechanical defect but to the presence of some speck of foreign matter in the magnet gap. Every care is now being taken to avoid troubles of this kind as far as is humanly possible, and very probably we shall arrange to test these instruments in the near future in a special dust-proof room, as the matter is under consideration at the present time. With kindest regards, Yours faithfully, | ||