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. regarding the revolutions for small dial speedometers and an enquiry about standard tyre sizes.
| Identifier | ExFiles\Box 50\4\ Scan248 | |
| Date | 3rd September 1928 | |
| x 4308 CONTRACTORS TO THE WAR OFFICE THE ROYAL AIR FORCE AND LEADING MANUFACTURERS. A.T. SPEEDOMETER Co. LTD. Trade Mark. 20, Avonmore Road, West Kensington, London, W.14. DIRECTORS: F. {Mr Friese} T. FISHER, H. {Arthur M. Hanbury - Head Complaints} O. {Mr Oldham} BOOTH, S. D. {John DeLooze - Company Secretary} McKELLEN. Telephone : Fulham 1422. Telegrams : Aytespeedo-Hammer, London. Your Ref. EFC {E. Fowler Clarke - Electrical Engineer} 2/T. Our Ref. HOB/W. 3rd September, 1928 Messrs. Rolls-Royce Limited, Nightingale Road, Derby. PATENTEES & MAKERS OF MAGNETIC SPEEDOMETERS FOR MOTOR CARS AND MOTOR CYCLES. A.T. ELECTRIC SCREEN WIPERS AND PETROL LEVEL GAUGES. MOTOR CLOCKS, TACHOMETERS, MILEAGE RECORDERS. REVOLUTION COUNTERS AND INDICATORS FOR MOTOR CARS, MOTOR BOATS, ENGINES, ETC. ALL CLASSES OF SCIENTIFIC INSTRUMENTS. REPAIRS A SPECIALITY. Dear Sirs, We have your favour of the 31st ulto. with reference to the small dial type Speedometers, and have already agreed that the revolutions shall be 800 for the 14/52 and 742 for the 15/52. Our enquiry was as to whether we could take it that you were working on present standard size tyres and what size you make this to be exactly. Yours faithfully, for A.T. SPEEDOMETER CO.LD. (signature) | ||