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 speedometer supplier discussing achievable revolutions per mile for total and trip instruments.
| Identifier | ExFiles\Box 59\2\ Scan132 | |
| Date | 26th March 1931 | |
| The A.T. SPEEDOMETER Co., Ltd. MAGNETIC SPEEDOMETERS & MOTOR CLOCKS, REVOLUTION INDICATORS FOR MOTOR CARS, MOTOR BOATS, AND ENGINES. MILEAGE RECORDERS, ETC. Directors: W. HENDERSON-CLELAND, A.{Mr Adams} GORDON-SMITH, H.{Arthur M. Hanbury - Head Complaints} R.{Sir Henry Royce} BUCKLAND. TELEPHONE: WILLESDEN 1136 (4 LINES) TELEGRAMS: AYTESPEEDO, CRICKLE, LONDON. CHRONOS WORKS, NORTH CIRCULAR ROAD, LONDON, N.W.2. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY. Your EFC1/AD. PLEASE QUOTE OUR REF. HRB/W. [STAMP: RECEIVED 28 MAR 1931] 26th March, 1931. Messrs. Rolls-Royce Limited, Nightingale Road, Derby. Dear Sirs, for the attention of Mr. E.{Mr Elliott - Chief Engineer} Fowler Clark. re - Drive revs. per indicated mile. In answer to your esteemed favour of the 23rd instant, we have investigated your request, and we would state that the nearest revs. which we can attain towards 816, are either 810 or 825 and these revs. apply to both total and trip instruments. We trust sincerely that you will find it feasible to use either of these revs. If you wish, we shall be very pleased for a technical representative to call and discuss this matter very carefully with you. Assuring you always of our best service. Yours faithfully, for A.T. SPEEDOMETER CO. LTD. H.R. Buckland Director. | ||