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).
Experiments on synchro mesh clutch cones to prevent sticking by adding a screw thread and testing alternative materials.
| Identifier | ExFiles\Box 104\4\ scan0225 | |
| Date | 26th February 1934 | |
| [Handwritten top center] GRY{Shadwell Grylls} [Handwritten top right] x5310 [Handwritten across center] See me HS{Lord Ernest Hives - Chair} To BY.{R.W. Bailey - Chief Engineer} from HDY.{William Hardy} HDY.{William Hardy}2/HP.26.2.34. c. Wor.{Arthur Wormald - General Works Manager} E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} Ps. NHC. Synchro mesh Clutch Cones. With reference to HS{Lord Ernest Hives - Chair}/KW.19.2.34, we should like to try the effect of a screw thread on the bronze cone as a means of preventing cones of finer angle than 10° from sticking and we accordingly send N. Sch.3994 herewith which shows the experiment applied to the 20/25 gearbox. We think that the cones should be tried both with the steel cone outside and with the steel inside. We should also like to try duralumin instead of bronze in both the inner and outer positions. HDY.{William Hardy} | ||