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).
Design change for a spring-loaded exhaust choke valve.
| Identifier | WestWitteringFiles\M\Jan1925-March1925\ Scan31 | |
| Date | 2nd February 1925 | |
| [Handwritten]: Hs.{Lord Ernest Hives - Chair} [Faint stamp]: ORIGINAL [Stamp]: SECRET [Struck through]: BY: FROM E.{Mr Elliott - Chief Engineer} E1/M26. 2. 25. [Struck through]: Copy to - SJ. - HS.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. SPRING LOADED EXHAUST CHOKE VALVE. [Handwritten]: X8230 We send herewith drawing Lec. 1999., shewing the above. The fittings at present used on the countershaft through the engine for providing the spring load are cancelled by this scheme and the controls should be altered accordingly. Would you kindly issue the necessary instructions. E.{Mr Elliott - Chief Engineer} [Handwritten text]: Tell us please if this means we must modify all engines! I believe it does. B.y. If you would ring up Shellon or Roy{Sir Henry Royce} J - we will get it done with. | ||