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).
Alteration of a conical top piston to incorporate a lower scraper ring for testing purposes.
| Identifier | ExFiles\Box 66\1\ scan0054 | |
| Date | 29th April 1925 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to CJ. Hs.{Lord Ernest Hives - Chair} X. 8040 S E C R E T. EB/M29.4.25. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. PISTON. In case it is required to use the existing conical top piston with the lower scraper ring we send you herewith LeC.2053. If you have a spare pattern available of a conical top piston it might be as well to put this alteration in hand as it may provide a means of obtaining a quicker test of the lower scraper ring than waiting for the new pattern with concave top. E.{Mr Elliott - Chief Engineer} | ||