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).
Loads required to operate shutters on various radiators at the calorstat spindle.
| Identifier | ExFiles\Box 87\1\ scan0207 | |
| Date | 4th November 1936 guessed | |
| COPY LOADS REQUIRED TO OPERATED SHUTTERS ON VARIOUS RADIATORS (ALL AT CALORSTAT SPINDLE). (1) 3-B-IV. Load to open fully + 6.5 lbs. Load to close fully + 7.2 lbs. (2) 1st. standard radiator. Load to open fully - .25 lb. Load to close fully 11.8 lbs. Load to start closing 4.0 lbs. (3) 2nd standard radiator. Load to open fully 3.5 lbs. Load to close fully 11.5 lbs. Load to start closing 2.2 lbs. (4) 3rd. standard radiator. Load to open fully 2.0 lbs. Load to close fully 9.3 lbs. Load to start closing 5.75 lbs. Mean of production radiators. Load to open fully 2.0 lbs. Load to close fully 10.8 lbs. Load to start closing 4.0 lbs. Hs{Lord Ernest Hives - Chair}/C.S.Steadman. | ||