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).
Development of a gearbox, including issues with magnets and plans for a new design based on a Chrysler unit.
| Identifier | ExFiles\Box 136\2\ scan0174 | |
| Date | 16th February 1940 | |
| - 2 - To Ev.{Ivan Evernden - coachwork} Rm.{William Robotham - Chief Engineer}2/ML.16.2.40. The obvious question to ask seemed to be why they did not put the magnets for the 3½ litre box on the 1½ litre box and continue their experiments but such a test appeared to be outside the scope of their existing experimental Dept., One thing appeared to be clear, they have little or no trouble with the surfaces of the magnets seizing up or due to faulty electrical contacts. We are borrowing a box from them which we will let you have at Park Leys, and I think we should consider a design for it based on the tooth loads which gave satisfaction on the Chrysler overdrive unit. If necessary, we can test the box after you have examined it. Rm.{William Robotham - Chief Engineer} | ||