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).
Design modifications and testing of rubber-ended shock absorber and roll rod links for Phantom III and Wraith II models, based on American designs.
| Identifier | ExFiles\Box 95\4\ scan0062 | |
| Date | 18th August 1936 | |
| X342 E/Ev.{Ivan Evernden - coachwork}1/MN.18.8.36. To BY.{R.W. Bailey - Chief Engineer} Copy to Br.{T. E. Bellringer - Repair Manager} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} He/Les.{Ivan A. Leslie} Rubber Ended Shock Absorber and Roll Rod Links All Cars. We have sent to you a design for the front roll rod link on Phantom III and also a rear roll rod link and shock absorber link for Phantom III having rubber ended connecting links. We have also sent you a scheme for Wraith II, both front and rear roll rods, having a similar link. E/PSN. brought back from America the latest samples of this type of link which is becoming very popular on American cars, and we have modified our designs to correspond to the latest practice. On N.Sch.4880 herewith we show the modifications which we wish to be made to the rubber ball joints. In this particular case the scheme is shown on the rear roll rod and shock absorber of Phantom III. We learn that the rubber has to be a high grade rubber of 55 to 60 durometer, and a taper hole is placed through the centre as drawn. We also show the latest American shape of ball end or pedala. In the case of the samples we have received this is left as forged, being merely cleaned up, and does not appear to be hardened. We find that the retainer for the rubber, which prevents it spewing through the hole in the tube, is made of sheet copper. In the case of the American design the ball end is put into the tube once and for all. We cannot do this and therefore we have to make it possible to unassemble the rubber ended tube. We understand that the Expl. Dept. are testing on the bump rig two of the samples received from America, and we would like very much to get one of these links to our design on Phantom III a s soon as possible to enable us to test this type of connecting link, in as much as Wraith II has been made somewhat dependent upon the use of this link. Att: N.Sch.4880. Ev.{Ivan Evernden - coachwork} | ||