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).
Diagram of an 'S.S.' dynamo drive, showing an experimental drain trough to feed oil to a bush.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan148 | |
| Date | 30th August 1928 | |
| OIL IS THROWN FROM THIS EDGE OF GEARS EXPL. DRAIN TROUGH 'S.S' DYNAMO DRIVE SHEWING EXPL. DRAIN TROUGH TO FEED OIL TO BUSH ae/x 30/8/28 | ||