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).
Drawings of a sump flange with an anti-surge plate, a drain plug, and a pendulum lever with serration details.
| Identifier | ExFiles\Box 126\1\ scan0072 | |
| Date | 24th January 1938 guessed | |
| Exs. 395. ANTI-SURGE PLATE SPOT WELDED TO SUMP .075 1.000 1.500 FIXING HOLES .250 DIA 2.500 CTS.{C. Trot Salt - Carburation} A.{Mr Adams} VIEWS SHOWING RIBBING OF SUMP FLANGE. B. DRAIN PLUG FIXED INTO SUMP BY PEENING OVER. 1.000 SPRING WASHER PLAIN NUT 1 1/2° .750 DIA. 1.072 DIA. 2 SERRATIONS UNCUT 90° APART. TOTAL NUMBER SERRATIONS INCLUDING THOSE UNCUT 36. APPROX. DEPTH .030. TYPE OF SERRATION USED ON SHAFT. PENDULUM LEVER. | ||