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).
The detailed design of an aluminium timing gear (P.L.215) and comparison to a fabroil gear.
| Identifier | ExFiles\Box 136\1\ scan0328 | |
| Date | 15th May 1940 | |
| To Rm{William Robotham - Chief Engineer}/HH. from Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} c. to JNR.{Charles L. Jenner} c. to Rm{William Robotham - Chief Engineer}/JRS. c. to Rm{William Robotham - Chief Engineer}/JENKINSON. File 1185 Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}7/JMc.15.5.40. TIMING GEARS. In view of the fact that it will be some time before we get a sample aluminium gear from the States, Rm.{William Robotham - Chief Engineer} is anxious that P.L.215 should be detailed as soon as possible. At the same time, Rm{William Robotham - Chief Engineer}/JRS should submit figures to Rm.{William Robotham - Chief Engineer} to show how much better off we may expect to be regarding lower inertia of the Alum gear and relative tooth strength compared with the fabroil gear. Rm{William Robotham - Chief Engineer}/JENKINSON should specify material, as previously arranged. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||