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).
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} | ||