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 to S. Smith & Sons, Ltd. enquiring about the composition and modification of Calorstats.
| Identifier | ExFiles\Box 39\4\ Scan111 | |
| Date | 8th April 1930 | |
| XB499 Expl. Dept. Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}3/MJ. April 8th, 1930. Messrs. S. Smith & Sons, Ltd., Cricklewood Works, LONDON N.W.2. Dear Sirs, CALORSTATS. We should be obliged if you could tell us what liquid you use in the Calorstats with which you have supplied us. Supposing we wanted 25% more power out of the thermostat at 80°C. Do you know of any fluid which would give the required result and would it be necessary to alter the bellows?. Yours faithfully, For Rolls-Royce Ltd. | ||