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).
Note explaining the function of a square edge on a bore to clean particles from a shaft and prevent wedging.
| Identifier | ExFiles\Box 105\4\ scan0004 | |
| Date | 1st January 1925 guessed | |
| contd :- -3- The intention is that the more or less square edge at the forward end of the chambered bore should clean from the shaft particles of foreign matter when the sleeve is slid upon it, and so prevent them wedging between the shaft and sleeve when the latter is moved in the opposite direction. AJS. | ||