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 enclosing a sketch and photographs of a protected mechanism related to a speedometer and gear ratios.
| Identifier | ExFiles\Box 33\4\ Scan013 | |
| Date | 10th April 1934 | |
| X1756 22 Shambles St Barnsley April 10/34 E.W. Hives Esq. c/o Messrs Rolls Royce Ld Derby. Dear Sir, Your letter to Mr Edinson of Mansfield (your Ref H.S.2/LG) has been handed on to me by that gentleman and I thank you for your kind offer of your opinion therein made. I am therefore enclosing my original sketch and also several photographs of the additional mechanism which I have protected. The plate is 3 1/2 inches deep and with the rectangular tank represents the size of the speedometer casing. The accuracy of the resultant movement is very good indeed as shewn by the scale even in one of the photographs. The proportion of leverage as arranged would give readings for any set of gear ratios up to where low gear to high gear was as 4 is to 1 and of course every shade of difference between. I shall be glad at your convenience | ||