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).
Minutes of a suspension development meeting discussing revisions for the Senior Range pivot and plans for the Junior Range suspension.
| Identifier | ExFiles\Box 154a\2\ scan0248 | |
| Date | 5th February 1940 | |
| 1305 1306 To Rm.{William Robotham - Chief Engineer} c. to Ev{Ivan Evernden - coachwork} c. to EV{Ivan Evernden - coachwork}/DB.{Donald Bastow - Suspensions} Rm{William Robotham - Chief Engineer}/PJH.7/JH.5.2.40. Minutes of Suspension Development Discussion - Works 2.2.40. Present Rm.{William Robotham - Chief Engineer} Ev{Ivan Evernden - coachwork}/Db.{Donald Bastow - Suspensions} Rm{William Robotham - Chief Engineer}/PJH. Project for revised Senior Range Pivot. (1) Buick type open pivot forging for ease of machining. (2) Simpler brake backplate resulting from Buick forging. (3) Buick type attachment of side steering levers. (4) Smaller dia. solid stub axle. (5) Either new Departure angular contact or Timken bearings. (6) Lighter hub resulting from smaller bearings. (7) Retain R.R. plain pivot thrust and lower needle bearing. (8) Parallel pivot pin located by taper dowel. (9) Needle type upper pivot bearing. (10) Bijur oil to both pivot bearings to be metered by drip plugs with gravity feed to side steering lever ball joints. Junior Range Suspension. It was agreed that the project for the Junior front suspension should include the Studebaker type pivot which eliminates the yoke. The journal bearings of the pivot pin should be of the plain wrapped type but in view of the large effective radius of the thrust bearing this must be a ball or roller bearing. Rm{William Robotham - Chief Engineer}/PJH. | ||