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 A.T. Speedometer Co. Ltd. confirming the calibration of an instrument to 800 revs.
| Identifier | ExFiles\Box 50\4\ Scan258 | |
| Date | 6th November 1928 | |
| CONTRACTORS TO THE WAR OFFICE, THE ROYAL AIR FORCE AND LEADING MANUFACTURERS. X.4308 A.T. SPEEDOMETER CO. LTD. Trade Mark. 183, The Vale, Acton, London, W.3. DIRECTORS : F. {Mr Friese} T. FISHER, H. {Arthur M. Hanbury - Head Complaints} O. {Mr Oldham} BOOTH, S. D. {John DeLooze - Company Secretary} McKELLEN. Telephone : Chiswick 5122. Telegrams : Aytespeedo-Act, London. Your Ref. Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 2/LG51128 Our Ref. CB/W. 6th November, 1928 Messrs. Rolls-Royce Limited, Nightingale Road, Derby. PATENTEES & MAKERS OF MAGNETIC SPEEDOMETERS FOR MOTOR CARS AND MOTOR CYCLES. Dear Sirs, We thank you for your letter of the 5th instant and will calibrate the instrument you have returned to 800 revs. The Speedometer will be returned to you on Thursday 8th instant. A.T. ELECTRIC SCREEN WIPERS AND PETROL LEVEL GAUGES. MOTOR CLOCKS, TACHOMETERS, MILEAGE RECORDERS. Yours faithfully, for A.T. SPEEDOMETER CO. LD. REVOLUTION COUNTERS AND INDICATORS FOR MOTOR CARS, MOTOR BOATS, ENGINES, ETC. ALL CLASSES OF SCIENTIFIC INSTRUMENTS. REPAIRS A SPECIALITY. | ||