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).
Blueprint of a thermostat bellows with dimensions and operating parameters.
| Identifier | ExFiles\Box 149a\2\ scan0075 | |
| Date | 26th September 1932 guessed | |
| OIL MAY REACH A TEMP OF 100°C IDEAL OPERATING TEMP 25°C .334 DIAM - 1/2 'A' 1.325"-S CLOSED .625" APPROX 'B' 1.032" DIAM. OF BELLOWS. STROKE .150. THERMOSTAT IMMERSED IN OIL AT 8 1/2 LBS/SQ" OR 7 LBS FOR DIA OF 1.032 TO OPEN AGAINST OIL PRESSURE. | ||