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).
Mr. Royce's opinions on modifications to worm gear designs.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page169 | |
| Date | 9th February 1912 | |
| Mr. Wormald. Issued 26/2/12 NB/D9212 [Stamp: 12 FEB 1912] 9th February 1912. Le CanadelHenry Royce's French residence. Technical Committee. Re Worm Gears. Mr Royce is of the opinion, after looking over the figures in Mr Bailey's sheet, that our gear might, with advantage, be fitted with another start in the worm. In one of my previous notes I mentioned his suggestion that the centres of the gears should be reduced. When this alteration is made it will probably mean adding to the number of starts on the worm and reducing the pitch of the teeth on the worm wheel. Mr Royce thinks the width of the Hindley worm wheel has been made unnecessarily narrow, and does not see any reason why it should not have been as wide as the straight gear. He also thinks we might adopt a greater angle of embrace than we have done for the Hindley gear. Thos. Nadin. [Handwritten left margin]: X/101 | ||