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 The British Thermostat Co. Ltd. regarding a bellows unit pressure test.
| Identifier | ExFiles\Box 156\1\ scan0285 | |
| Date | 13th October 1937 guessed | |
| Page 2 Messrs. Rolls-Royce Ltd. the postscript of your letter dated the 5th Oct. A pressure of 50 lbs/sq.in. applied externally to this bellows unit will cause it no harm. Yours truly, THE BRITISH THERMOSTAT CO.LTD. W.Martin-Hurst. Director. P.S. We are carrying out a test and will let you have a report to-morrow. | ||