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 of enquiry to The Steam Fitting Co. Ltd. regarding the working principles of their automatic radiators and sylphon tubes.
| Identifier | ExFiles\Box 78\3\ scan0188 | |
| Date | 15th September 1921 | |
| XC4413 1304 MADE AT CROXLEY Hs{Lord Ernest Hives - Chair}6/LG. 15th. Sept. 1921. The Steam Fitting Co.Ltd., West Drayton, Middlesex, England. Dear Sirs, We should be pleased if you could let us know upon what principle your automatic radiators work. Do you use the sylphon tube similar to the usual American practice? Do you supply sylphon tubes which we could fit into a regulator made suitable for our engine? Yours faithfully, | ||