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 S. Smith & Sons discussing the performance of an electric clock and a new series of instruments.
| Identifier | ExFiles\Box 165\2\ img221 | |
| Date | 19th January 1940 | |
| 105 Elec. 6026 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY BY APPOINTMENT TO THE LATE KING GEORGE V S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS, LONDON, N.W.2 TELEPHONE: GLADSTONE 3333 (40 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES: MARCONI, COMMERCIAL, BENTLEY'S. BRANCHES AT PARIS MILAN SYDNEY WELLINGTON AGENCIES AND SERVICE STATIONS THROUGHOUT THE BRITISH EMPIRE AND IN MOST OF THE PRINCIPAL COUNTRIES SHOWROOMS & DEPOTS 179-185 Gt PORTLAND ST LONDON, W.I. 26-30, COX ST & LIVERY ST BIRMINGHAM 14a JACKSONS ROW DEANSGATE MANCHESTER 21 ORCHARD STREET GLASGOW DUBLIN & BELFAST Please quote our reference: S.l. SALES DIRECTOR'S OFFICE 19th January, 1940 W.A.Robotham, Esq., Messrs. Rolls-Royce Ltd., D E R B Y. Dear Mr. Robotham, I was so sorry to learn during our telephonic conversation to-day that your electric clock has a losing error and am confident, from my personal experience of this design, that it is merely a question of adjusting the instrument to ensure satisfactory results. As regards your observation that the clock appears to be an erratic timekeeper, this is not our experience, at least with constant voltage systems. I would, however, particularly point out that with an electric clock the error is cumulative and whilst we can guarantee to give you under ordinary conditions a clock which is a good timekeeper, we must not forget that the error is cumulative in this type. Concerning the question of the new cheaper series instruments, I have urged our Engineers to get busy immediately with the preparation of our samples and to aim at improved illumination. | ||