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 suitability of the Foxboro Thermometer for American chassis, detailing installation issues and future plans for thermostat control.
| Identifier | WestWitteringFiles\D\March1920\ Scan55 | |
| Date | 16th March 1920 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ c. to BM. c. to CY. c. to Na.{Mr Nadin} c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} ORIGINAL C-K Hs{Lord Ernest Hives - Chair}3/LG16.3.20. X.3903. REPORT ON AMERICAN CHASSIS PARTS. X.3565 Foxboro' Thermometer. This Thermometer very closely resembles the Cambridge Thermometer we are at present fitting to our cars, except that the scale is in fahrenheit instead of centigrade. We believe the fahrenheit to be the one most generally used and understood in America. The mechanism is quite good; the arrangement of it is better than the Cambridge Thermometer which we are using. The point we do not like about this instrument is the method of fixing it into the water system. We used a similar system at first and it gave trouble because we found that when the instrument was disconnected by outside mechanics, they invariably turned the large nut which twisted the capilliary tube and broke it. We recommend that the Foxboro Thermometer could be used on the American chassis as long as the fixing of the capillary tube into the water system is modified so as to be similar to what we are using (see drawing E.18062) and that the length of capilliary tube is made suitable. X.3563 We wish to make it clear that as soon as we have perfected the Thermostat Control for the water system, Mr. Royce wishes to abandon fitting a Thermometer. We anticipate that all chassis built in America will be fitted with a Thermostat Control. We are at present testing out the R-R scheme. HS.{Lord Ernest Hives - Chair} (upside down text) R.R 235A (100 T) (S F.{Mr Friese} 846. 6-8-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2460. | ||