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).
Measurements for Chrysler shutters, including thermostat movement and required efforts.
| Identifier | ExFiles\Box 125\2\ scan0059 | |
| Date | 17th September 1929 | |
| To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/MJ.17.9.29. CHRYSLER SHUTTERS. TOTAL THERMOSTAT MOVEMENT. .653" EFFORT REQUIRED TO START MOVEMENT. 18¾ lbs. EFFORT REQUIRED TO OPEN STEADILY. 21¼ lbs. EFFORT REQUIRED TO PREVENT SHUTTERS CLOSING. 1¼ lbs. All loads measured at the point where the thermostatic bellows apply their effort. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||