Letter to The British Thermostat Co. Ltd. discussing the reliability and testing of diaphragm bellows for a thermostat unit.
| Identifier | ExFiles\Box 156\2\ scan0158 | |
| Date | 24th November 1938 | |
| 1328 Experimental Dept. Rm {William Robotham - Chief Engineer} /Std.6/MH. {M. Huckerby} 24th. November 1938. The British Thermostat Co. Ltd., Teddington Works, Windmill Road, Sunbury-on-Thames, MIDDX. For the attention of Mr. Martin-Hurst. Dear Sirs, We thank you for your letter of 9th. inst. and would say that if you state that the diaphragm type of bellows is not better from a reliability point of view than your own spun type, there would be no object in our testing a diaphragm bellows made up by yourselves unless it showed a material cost saving - we would like your remarks on this. The only thermostat unit which we are interested in at the moment is that similar to your drawing BGA.3754. Yours faithfully, for ROLLS-ROYCE LTD. | ||
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).