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).
Scheme 3157 for vacuum control and operation of top and 3rd gear jaw clutches, which supersedes scheme 3151.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan031 | |
| Date | 25th October 1930 | |
| DY.{F R Danby} FROM DA.{Bernard Day - Chassis Design} C. to SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} DA{Bernard Day - Chassis Design}2/M25.10.30. ORIGINAL Herewith we send N. Scheme 3157. - Vacuum Control and Operation for the Top and 3rd. Gear Jaw Clutches. It will be seen that the arrangement is modified as compared with N. sch. 3151., which it supersedes as regards this part. RECEIVED NOV 8 1930 HS{Lord Ernest Hives - Chair} EA. | ||