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 to The British Thermostat Co. Ltd. requesting the repair and supply of two thermostats with specific operating temperatures.
| Identifier | ExFiles\Box 156\1\ scan0277 | |
| Date | 6th October 1937 | |
| 1325. RM{William Robotham - Chief Engineer}/Std/6/MH.{M. Huckerby} Messrs. The British Thermostat Co. Ltd., 6th. October 1937. Windmill Road, Sunbury-on-Thames. Middx. For the attention of Mr. Martin Hurst. Dear Sirs, Will you please send us, by return if possible, (1) The thermostat to EB.3410 which has failed, and which we have returned to you to-day, repaired and re-set to commence opening at 77°C ± 1°C and to be full open at or below 88°C. (2) A standard Vauxhall thermostat to BGA.2073.A. but set to open at 77°C ± 1°C and to be full open at or below 88°C. On receipt of these thermostats we will send you an official order. Yours faithfully, for ROLLS-ROYCE LTD. P.S. We should like to know whether a water pressure of 50 lbs/sq.in. is likely to harm these thermostats in any way. | ||