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).
Cross-section drawing for a Delco II leak adjustment shaft.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan141 | |
| Date | 7th January 1931 | |
| SHT 5 4/7-1-31 1.900 .750 .375 .437 .685 DIA .312 DIA 1.500 22 ADJUSTMENT GROOVES. 39° .243 DIA .311 DIA 24 T.P.I LOW PRESSURE PASSAGE HIGH " .093 DIA .250 DIA 1 1/4" MARGIN DELCO II. LEAK ADJUSTMENT. SECTION THROUGH ¢ OF SHAFT h.B. | ||