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).
Request for a pair of modified 2nd speed cones for a Phantom III gearbox.
| Identifier | ExFiles\Box 94\2\ scan0153 | |
| Date | 11th January 1937 | |
| 328. HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}10/R.11.1.37. P.III GEARBOX. Will you please put in hand a pair of 2nd speed cones of 5½° angle for gearbox No. 8 HS.{Lord Ernest Hives - Chair} This box has the outer member grooved so that the cones are subsequently freed by the plungers. The steel cone should be strengthened up to .175 thickness in the places where it is now .100. The bronze cone should be screw threaded. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||