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).
Retrofitting an engine thermostat to a 1937 Bentley, chassis number 96KT.
| Identifier | ExFiles\Box 156\2\ scan0278 | |
| Date | 31th January 1940 | |
| Telephone: SUNBURY-ON-THAMES 456 (7 LINES) Telegrams & Cables: THERMOSTAT, SUNBURY-ON-THAMES Code: BENTLEY'S EDWARDS - WHY NOT? Rm{William Robotham - Chief Engineer} THE BRITISH THERMOSTAT CO., LTD. Makers of Scientific Instruments. DIRECTORS: COL. N. HUDSON. J.{Mr Johnson W.M.} E.{Mr Elliott - Chief Engineer} SHERLOCK W. F.{Mr Friese} P. MARTIN HURST } MANAGING. F.{Mr Friese} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} POPLETT. F.{Mr Friese} PARMENTER. 1328. TEDDINGTON WORKS. Windmill Road, Sunbury-on-Thames, Middlesex. ON A.I.D. AIR MINISTRY APPROVED LIST. WMH/GN: January 31st, 1940. W.Robotham Esq., Messrs. Rolls-Royce Ltd. DERBY. Dear Mr.Robotham, I have a Bentley made in August 1937 which is fitted with a radiator thermostat only. Chassis N° 96KT Is there any objection to having fitted one of the engine thermostats used on the later models? It has always struck me that the ideal control for the cooling system would be/to use an engine thermostat set to control at, say, 75°C., and radiator shutters set to open at 80/85°C., as in this way one would get really quick warming up, which I do not at present, and a reasonably constant under-bonnet temperature. Pardon me for writing to you but I know that your Service Department do not regard with favour alterations from standard. Another reason why I would like to fit a thermostat is because we have supplied your Company with about 200 thermostats for use on Bentleys and I would like to have an opportunity of seeing how these work. With kind regards, Yours sincerely, W.Martin-Hurst. | ||