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).
Modifications to brake shoes, independent wheel suspension, and a sliding propeller shaft joint.
| Identifier | ExFiles\Box 179b\1\ img208 | |
| Date | 6th December 1932 guessed | |
| (2) This can be done apparently without disadvantage, and very little modification to existing pieces. The pressure per sq. in. is reduced from 175 to 120 lbs. The rear brake pressure is 155 lbs: we could, if desired, also widen the rear brake shoes. (6) While doing the wider shoes we have also shewn a steel forged shoe in place of the aluminium. It appears as though it could be made very little heavier than the aluminium. (7) INDEPENDENT WHEEL SUSPENSION. A fair amount of progress on your scheme was made some time ago, and recently we have done some more in our spare time. It seems to be coming out quite well. We are now going to make a picture for patent purposes, and also to illustrate the scheme to those interested. The main drawings should then not take long to complete sufficiently far for Derby to rig up an experiment. (8) SLIDING JOINT ON PROPELLER SHAFT. We have looked into the question of a sliding joint with reduced friction. R.{Sir Henry Royce} suggested rollers or balls, and this does not seem to work out badly. Another scheme - though we have not looked into it far enough yet - is to increase the diameter and number of serrations, so as to reduce the pressure per sq. in., and so perhaps save destroying the oil film. The larger serrations do of course also automatically reduce the end loads. DA.{Bernard Day - Chassis Design} | ||