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).
Continued document specifying speedometer drive adjustment tolerances and gear shaft lubrication methods.
| Identifier | ExFiles\Box 79\3\ scan0113 | |
| Date | 19th November 1919 | |
| Contd. -2- E3/G19.11.19. us a maximum error of 1% in adjusting the drive of the speedo-meter. Since 1% is only half a mile in fifty, it is considered near enough when the fact is taken into account that slip of the rear road wheels, and wear of tyres may have to be allowed for. Referring to the gear meshing with the gear shaft, 16 diametral pitchsshould be used. The bush on the pinion shaft which projects back slightly into the gear box, should have a hole drilled in its projecting part to collect oil and form a means of lubricasions. E.{Mr Elliott - Chief Engineer} R.R. 235 B 20(T) (S.F.) 674. 22-5-19 (G). 2876. | ||