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).
Revised, simpler design for the 20 HP engine's oil pump drive.
| Identifier | ExFiles\Box 56\3\ Scan047 | |
| Date | 27th August 1919 | |
| To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Bn.{W.O. Bentley / Mr Barrington} c. to EH. [Crossed out handwritten text] X.3537/ E1/G27.8.19. X.3610.—20 H.P. OIL PUMP DRIVE. When dealing with the oil pump drive for the 20 H.P. engine ; it has been found necessary to carry the intermediate wheel and the camshaft driving gear of the wheelcase, together with the oil pump driving wheel on one stout shaft. This scheme is simpler and lighter than the drive as originally conceived. You will not now require the pivot for holding the intermediate gear, as given on scheme for the 20 H.P. wheelcase & gears. E.{Mr Elliott - Chief Engineer} | ||