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).
Letter regarding lubrication problems in rear shock absorber connecting links.
| Identifier | ExFiles\Box 5a\2\ 02-page201 | |
| Date | 7th February 1912 | |
| V58400 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} W. Hancock, Hotel de France, Chateauroux, Indre, France. To GWH.{George W. Hancock - Head Chateauroux} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/W.12. REAR SHOCK ABSORBER CONNECTING LINKS. We have come to the conclusion that one of the main disadvantages with regard to lubricating the connecting links on the rear of the shock absorbers is that fact that in the normal riding position the shock absorber arm slopes upwards to the ball end, and therefore the oil has to flow up-hill to lubricate the links. We should like you to try an experiment to see how much oil flow out of the ball end at each depression of the Bijur pump lever if the shock absorber arm is fixed in the position in which it lies when the car is normally loaded. If oil comes freely out of the ball end, then the fault is in the arrangement of the lubrication to the pads. If not, then we must adopt some means of getting the oil from the shock absorber to the ball end. If the car is fitted with ultra weak springs it would appear that the difficulty of getting the oil to the ball end will be increased. Your brake lever and number 2 Bijur plugs have been sent off. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||