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).
Alteration of a second speed cam angle for gearbox no. 9.B.5.
| Identifier | ExFiles\Box 136\2\ scan0095 | |
| Date | 23th May 1939 | |
| 1153 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}17/MH.{M. Huckerby}23.5.39. GEARBOX NO. 9.B.5. We believe you are now in a position to build up this box but should be glad if, before doing so, you would have the second speed cam angle altered by the necessary correction to allow for the helix angle of the splined sleeve. By/CRL.{C. R. Lisson} is sending you a couple of marked up blue prints showing this modification. We presume the cone can be re-cyanide hardened after grinding the new angles. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||