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).
Thermostat performance, noting undesirable variations and a potential future order for modified units.
| Identifier | ExFiles\Box 156\1\ scan0187 | |
| Date | 11th May 1937 guessed | |
| -2- the valve and its seating (b) a .002 feeler can just be inserted between the bellows plate and the full open stop. This shows a considerable departure from the 75°C. opening temp. requested and also a large variation in opening range which is undesirable. We shall probably require two further thermostats to B.G.A.3357.A. but with reduced size of valve.seating; We presume that you can easily supply these when required. As soon as we are satisfied as to the valve size and opening temperature required we will order these thermostats. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||