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).
The examination of a 35-EX clutch after a 4,000-mile test in London traffic.
| Identifier | ExFiles\Box 92\3\ scan0073 | |
| Date | 15th December 1936 | |
| Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} c. to E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} LE SMITH . 300a . Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}1/R.15.12.36. 35-EX - CLUTCH. The examination of the clutch after 4,000 miles' test in London traffic:- (1) The fabrics had worn .020". (2) Pressure plate had dished outwards .005. (3) The fabric in contact with the pressure plate had picked up fine threads of metal. (4) The operating fingers of this clutch had not been modified where they came in contact with the adjusting screws, i.e., the angle of contact was too abrupt. (5) The condition of the fabrics were a high polish; there was no sign of disintegration. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} GWH.{George W. Hancock - Head Chateauroux} | ||