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).
Proposal for an easy change gearbox device using suction to operate a clutch, potentially for a provisional patent.
| Identifier | ExFiles\Box 15\5\ Scan083 | |
| Date | 14th April 1929 | |
| X7310 DA{Bernard Day - Chassis Design}/HDY.{William Hardy} E.{Mr Elliott - Chief Engineer} By.{R.W. Bailey - Chief Engineer}) FROM R.{Sir Henry Royce} Hs.{Lord Ernest Hives - Chair}) (At Le CanadelHenry Royce's French residence.) R2/M14.4.29 Rec'd at WN. 18.4.29. C. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} Mr.Claremont. X5310 GEARBOXES - EASY CHANGE DEVICES. X4510. When it is desired to change the throttle is always closed during the operation so that the gears can be relieved. When the clutch is out, just as it becomes free, the pedal might work a valve, thus - FOR SKETCH SEE ORIGINAL. and admit suction to a cylinder which might throw out the Salerni or similar clutch on the transmission or gearbox side-shaft. So that no more motion or load need be on the clutch pedal. Can we do anything with this idea? It might be worth an English provisional. R.{Sir Henry Royce} | ||