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).
Complications and advisability of fitting thermometers to engines with thermostats.
| Identifier | ExFiles\Box 78\1\ scan0101 | |
| Date | 22th September 1920 | |
| X 3563 To EP.{G. Eric Platford - Chief Quality Engineer} from Hs.{Lord Ernest Hives - Chair} c. to Da.{Bernard Day - Chassis Design} c. to By.{R.W. Bailey - Chief Engineer} c. to Bn.{W.O. Bentley / Mr Barrington} Hsl/LG22.9.20. X.3563. X.3565. RE THERMOMETER FITTING FOR ENGINES WITH THERMOSTATS. If we agree to providing means of fitting Thermometers to cars fitted withna Thermostat, it means that apart from leaving the connection on the water pipe we shall have to drill the Dashboard and fixithe plug in. We and Mr. Royce are definitely against fitting Thermometers on engines with a Thermostat fitted. It should be clearly understood that there is a risk (when we fit Thermostats) of the radiator becoming fozen up. We expect, in the extremely cold weather, that Blanking Plates or a Muff will have to be used. We think that to fit a Thermometer to as the driver would see the water temperature registering 80° these engines would be misleading whereas his radiator might be freezing. We think, as regard measuring the water temperature when on test, this could easily be arranged by clipping round the top water pipe a small receptacle containing oil; into this an ordinary glass thermometer could be inserted. This would give practica- lly the correct temperature of the water. If customers ask for Thermometer when Thermostats are fitted, we should try to persuade them against them having them, if they insist, they they must expect to pay for the extra work. Hs.{Lord Ernest Hives - Chair} | ||