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).
Hand-drawn sketch of a gearbox assembly with annotations.
| Identifier | ExFiles\Box 6\2\ 02-page140 | |
| Date | 25th January 1931 guessed | |
| LOCKING FORK FROM BACK OF BOX 3rd (OPEN) 2nd (OPEN) COUNTER SHAFT 1ST 2ND 3RD 2ND DRIVES REVERSE LARGER THAN REVERSE DRIVER 1ST AND REVERSE IDLERS ABOUT SAME DIAMETER SHEWN ALL GEARS OUT SHAFT SUPPORT CAN BE CUT AWAY IF NOT STIFF ENOUGH. IT CAN ATTACH TO OUTSIDE OF END BEAM | ||