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 set of helical gears with a 2-0 obliquity tool form to resolve interference issues.
| Identifier | ExFiles\Box 3\1\ 01-page133 | |
| Date | 7th March 1912 | |
| cf. Mr Royce's note S 3/12. Engine Dept. 7.3.12. G.G. Re Helical timing wheel for standard engine. TMH/A.27/12. Please get out a set of helical gears having a tool form of 2-0 obliquity, in order to overcome the difficulty of interference. X182 | ||