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).
From R. to H.S. discussing the successful development of quiet gears for the servo drive.
Identifier | ExFiles\Box 73\3\ scan0102 | |
Date | 30th June 1924 | |
To HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} +9970 R2/M30.6.24. FOUR WHEEL BRAKES. X.9940 X.9910. I was very pleased to hear that you have succeeded in getting quiet gears for the servo drive. You have proved that it is not unsteadiness of the transmission shaft. I believe the principal advantage you have obtained is that the worm teeth have increased in obliquity and therefore have a chance of giving a smoother transmission to the worm wheel. This will argue well for our future applications of the 7 to 1 worm drive. R.{Sir Henry Royce} | ||