New gearbox with synchro-mesh actuation, its mechanism, and modifications required to fit it to an existing 20/25 model.
| Identifier | ExFiles\Box 104\4\ scan0026 | |
| Date | 15th June 1931 | |
| X5310 BY. {R.W. Bailey - Chief Engineer} FROM DA. {Bernard Day - Chassis Design} DA {Bernard Day - Chassis Design} 1/M15.6.31. C. to SG. {Arthur F. Sidgreaves - MD} WOR. {Arthur Wormald - General Works Manager} C. to HS. {Lord Ernest Hives - Chair} BY. {R.W. Bailey - Chief Engineer} J. {Mr Johnson W.M.} 4. GEARBOX. We send herewith N. schemes 3283/88. shewing respectively the gearbox with synchro-mesh actuation for top and third, and the actuating mechanism. In order to get power for the operation of the synchro-mesh we suggest that the travel of the gear lever should be increased to 4" each side of neutral on a 15" lever, and have arranged the leverages to correspond. This box can be fitted to an existing 20/25. by modification to the position of the cross members and some modification to the brake gear. DA. {Bernard Day - Chassis Design} | ||
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).