Technical memorandum on overcoming reverse gear issues in the 25 HP synchromesh gearbox.
| Identifier | ExFiles\Box 104\4\ scan0065 | |
| Date | 11th November 1931 | |
| 85310 To H. {Arthur M. Hanbury - Head Complaints} From Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} c. to Sg. {Arthur F. Sidgreaves - MD} Wor. {Arthur Wormald - General Works Manager} c. to E. {Mr Elliott - Chief Engineer} Da. {Bernard Day - Chassis Design} c. to Hy. {Tom Haldenby - Plant Engineer} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 7/WJ.11.11.31. 25 HP. SYNCHROMESH GEARBOX. REVERSE GEAR. We have overcome the trouble of reverse gear working out under full load by fitting a shaft of twice the stiffness. Before doing this we tried a solid standard shaft (i.e. omitting the .750 dia. boring), but this 20% increase in stiffness was insufficient. For this test we used Whitemetal bushes with horizontal oil grooves opposite to the load. These bushes stood up to fifteen minutes full torque. Hs {Lord Ernest Hives - Chair} /H.Grylls. Attached: Hs. {Lord Ernest Hives - Chair} 450. | ||
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).