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).
Inability to test a Servais silencer due to a lack of response from the company, and comparing its design to the Burgess type.
| Identifier | ExFiles\Box 152\3\ scan0204 | |
| Date | 25th October 1937 guessed | |
| Cx {Major Len W. Cox - Advertising Manager} from Rm {William Robotham - Chief Engineer} /WYM. {G. Harold Whyman - Experimental Manager} Replying to your memo Cx {Major Len W. Cox - Advertising Manager} /CK {Mr Clark} 1/CPSS +10-57, we have not had the opportunity of testing a Silencer made by Messrs Servais, although in reply to a letter addressed to EP {G. Eric Platford - Chief Quality Engineer} by Mr E.R. Sworder of Servais Services Ltd in July 1936 we asked them to send us a sample of the sound absorbing material used by them, and unfortunately received no reply. We made a further request for this material in August 1936 and again failed to get a reply, therefore we dropped the matter from this end. Looking at the advertised photographs of the Servais Silencer it appears to be of similar construction to the Burgess type, but using a different type of sound absorbing material, that is why we were only interested in the | ||