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).
Proposed design for an air pump drive mechanism involving a sliding pinion.
| Identifier | ExFiles\Box 77\4\ scan0063 | |
| Date | 11th October 1920 | |
| X4197. To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to CJ. " " Hs.{Lord Ernest Hives - Chair} " " By.{R.W. Bailey - Chief Engineer} " " EFC. E4/G11.10.20. X.4195. RE AIR PUMP DRIVE. In thinking this matter over I have come to the conclusion that the sliding of the pinion in the gear should be performed through the end of the shaft by a pin cross pinned to the hub of the pinion. A spring forcing the pinion into the disengaged position and the positive pressure on the end of the pin controlled mechanically should hold the pinion in engagement during the short period the pump is in use. We are now working at the a complete drive and pump so that you can concen-R.{Sir Henry Royce} trate on the drive. | ||