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).
Manufacturing method for an outer cone insert's internal teeth.
| Identifier | ExFiles\Box 136\2\ scan0167 | |
| Date | 9th February 1940 | |
| 1153 To Rm.{William Robotham - Chief Engineer} c. to Ev.{Ivan Evernden - coachwork} Ev{Ivan Evernden - coachwork}/HH.7/JH.9.2.40. RG.{Mr Rowledge}181 - Insert - outer Cone. 2nd. Speed. In reply to your memo. HPS{Horace Percy Smith - Experimental Factory Mgr}/Cy.4/IC.7.2.40. re cutting of the internal teeth your suggestion of serrations would suit us. These slots are merely for oil release and could be produced in a form most suitable for manufacture with a generous tolerance. I will await your decision as to the type you would prefer to produce and in the meantime you will machine this piece by the most expedient method. Ev{Ivan Evernden - coachwork}/HH. | ||