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 selection of piston F.59293 for the J.III. type damper.
| Identifier | ExFiles\Box 105\3\ scan0291 | |
| Date | 2nd November 1932 | |
| X5520. BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KT.2.11.32. PISTONS FOR J.III. TYPE DAMPER. Will you please note that out of the various types available we have selected piston F.59293 as being the one most suitable, both for efficiency and easy manufacture, for the new shock absorbers. We are also utilising the vent in the top of the piston as shown in the attached sketch Hs.{Lord Ernest Hives - Chair}741, in order that we can cut down the feed to the bearing to a minimum. Will you please instruct further shock absorbers accordingly. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||