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).
Use of a standard Sessions Jack Pump on the Phantom III model, detailing modifications to the floorboards.
| Identifier | ExFiles\Box 140\2\ scan0012 | |
| Date | 22th May 1937 | |
| 1166 Copy to Da.{Bernard Day - Chassis Design} Rm.{William Robotham - Chief Engineer} RMD. HPC. E/Ev.{Ivan Evernden - coachwork}1/M.22.5.37. Re: PH.III. JACKS. We have already sent to you a scheme for using the standard Sessions Jack Pump on Ph.III., and we now send LeC.5651 showing this pump fitted to the Ph.III. in conjunction with the Sessions standard trap door in the floorboards. We understand that to use this standard trap door would effect a very considerable saving in cost. The pump has to be raised relative to the top of the frame, but the same supporting brackets are used as on the previous scheme with different drilling. The chassis floorboard pressing is the same as now, with the exception that the hole for the R.R. trap door is deleted and a platform is pressed up to receive the Sessions fitting. E/Ev.{Ivan Evernden - coachwork} Att: LeC.5651. | ||