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).
The J.4 gearbox, detailing a new filling plug, level stick, and cover modification.
| Identifier | ExFiles\Box 15\5\ Scan211 | |
| Date | 14th July 1931 | |
| X7310. By.{R.W. Bailey - Chief Engineer} from Da.{Bernard Day - Chassis Design} c. Sg.{Arthur F. Sidgreaves - MD} Hs.{Lord Ernest Hives - Chair} Da{Bernard Day - Chassis Design}2/M14.7.31. X.5310 X.7310 J.4. GEARBOX. Herewith we send N.sch.3311 showing the filling plug and level stick for the above box. If the dip stick handle is approved we suggest that it should be adapted for P.2. It will be noticed that we have moved slightly the centre-line of the cover. Da.{Bernard Day - Chassis Design} | ||