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).
On proposed modifications to the L.H. P.2 gearbox central levers to increase load against sideways deflection.
| Identifier | ExFiles\Box 19\3\ Scan413 | |
| Date | 28th May 1930 | |
| X.7772 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}3/M28.5.30. L.H. P.2. GEARBOX. CENTRAL LEVERS. X.7772 X.7310 With reference to the question of providing more load against sideways deflection on the lever we see that the plunger springs actually used are not the same as instructed on the original N. scheme. There appear to have been reasons for making the alteration. The springs do not seem to give anything like sufficient load though we have no actual information about them. It appears to us to be necessary to alter the casting and greatly increase the diameter of the plungers. Even so it is difficult to obtain the 4½ lbs. now used on the 20 HP. R.H. chassis. We send herewith N. scheme 3111. shewing our proposals. Da.{Bernard Day - Chassis Design} | ||