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).
Machining and grinding of the B.50 gearbox.
| Identifier | ExFiles\Box 112\2\ scan0083 | |
| Date | 28th January 1939 | |
| 828 To RHC.{R. H. Coverley - Production Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} c. HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Da{Bernard Day - Chassis Design}/Hdy.{William Hardy} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}9/MH.{M. Huckerby}28.1.39. B.50 GEARBOX. We understand that the present position is that the only machine on which it is possible to cut the new proposed helical reverse gear is the "Lorenz", and that some £200 worth of tackle will have to be ordered from Germany which will take several months. Furthermore, we have seen a note from JRD. to HPS.{Horace Percy Smith - Experimental Factory Mgr} saying that it is impossible to grind a helical first speed pinion. We should like it confirmed that this is the real position, i.e. that there is no simpler nor quicker method whereby the reverse gear can be cut by machine in this works. As regards grinding the first speed pinion, has difficulty arisen because we now wish to use a larger grinding wheel than was used when the gear was a straight spur. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||