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).
Trial of new oil pump gears with a 30° angle of obliquity.
| Identifier | ExFiles\Box 149\2\ scan0133 | |
| Date | 15th January 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} ɣ 1265. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}8/AP.15.1.37. OIL PUMPS. We have been recommended to try oil pump gears with an angle of obliquity of 30°. This we should like to be carried out on 2 sets of increased capacity Bentley straight tooth gears Ex.11938/7. Either the necessary cutters can be obtained from Brown & Sharp for the job to be done here, or else the blanks and necessary drawings be sent direct to Brown & Sharp for them to carry out the job. Will you please regard this job as urgent and in connection with our memo Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}5/AP.24.12.36. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||