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).
The issues and recommendations regarding fitting thermometers to engines that are also fitted with thermostats.
Identifier | ExFiles\Box 78\1\ scan0206 | |
Date | 22th September 1920 | |
X.3565 G.F.C To EP.{G. Eric Platford - Chief Quality Engineer} from Hs.{Lord Ernest Hives - Chair} c. to DY.{F R Danby} c. to EY. c. to EN. Hs{Lord Ernest Hives - Chair}1/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 with a Thermostat, it means that apart from leaving the connection on the water pipe we shall have to drill the Dashboard and fix the 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 frozen 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 these engines would be misleading as the driver would see the water temperature registering 80°, whereas his radiator might be freezing. We think, as regards 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 practically the correct temperature of the water. If customers ask for Thermometers when Thermostats are fitted, we should try to persuade them against them having them, if they insist, then they must expect to pay for the extra work. Hs.{Lord Ernest Hives - Chair} | ||