Instruction note comparing the bevel wheel pitch of a Daimler 22HP with a Rolls-Royce 38HP model.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page174 | |
| Date | 15th February 1912 | |
| 539 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Technical Committee Customer's No.: Y141 Re: Bevel Wheel Pitch It may be of some interest to know that Daimler 22HP has ratio 48/12 & D.P. of 6 equivalent to 4.2 Dia Pitch The conection was 3 7/8. Browne & Sharp proportions for height. The thickness of teeth was arbitrarily chosen to make a decent pinion. The 38HP blanks of about same diameter. The ratio was 14/39 making Dia. Pitch about 3.5. Signed: RW This Sheet must be filed on completion of the work. | ||
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).