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).
Finding a suitable friction material for slipper flywheels on 20 HP cars.
| Identifier | ExFiles\Box 172\1\ img056 | |
| Date | 4th January 1924 | |
| COPY. Experimental Report. To H.{Arthur M. Hanbury - Head Complaints} from Hs.{Lord Ernest Hives - Chair} c. to CJ. Rg.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} FRICTION MATERIAL FOR SLIPPER FLYWHEELS. There has been trouble with some of the slipper wheels on 20 HP. cars not performing satisfactorily due to the fibre washers having swollen. It would appear that the quality of the fibre supplied for the washers can vary. It is not possible to get the usual friction materials such as Ferodo etc. in such thin sheets as we require for the 20 HP slipper wheels. We have carried out a 50 hours test on the bench and also made tests on the road and find that the bakelized linen or 'dilecto' is a very good friction material. It has approximately the same co-efficient of friction as fibre and is practically non-hydroscopic. We recommend that we use this material instead of fibre for 20 HP. slipper wheels. Hs.{Lord Ernest Hives - Chair} (Copy) { Seen c.f. file BG | ||