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).
Internal request for a drawing of the brake servo drive from the transmission shaft and details on its gear reductions.
| Identifier | ExFiles\Box 16\3\ Scan024 | |
| Date | 1st December 1928 | |
| X7370 S/W. Hs.{Lord Ernest Hives - Chair} CWB8/GM/1.12.28. Have you got any convenient sketch or detailed drawing which shows the driving of our brake servo from the transmission shaft? If you have, I should be very glad if you could let me have a copy and, if not, could you let me know the successive reductions in the two gears through which the speed is reduced. I understand also that these gears are placed the other way round in the American R.R. Is this the case? CWB. | ||