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).
Procedure for using clutch plates on test beds for Wraith and Bentley units.
| Identifier | ExFiles\Box 129\4\ scan0284 | |
| Date | 23th August 1938 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/FS.{F. Steele} c. to Rm{William Robotham - Chief Engineer}/Cwdl. c. to Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} c. to Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} 1110 Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler}10/JH.23.8.38. CLUTCH. Wraith and Bentley Units on Test Bed. Please note that whenever an engine is run on a test bed before going into a chassis, a temporary clutch driven plate should be fitted, any old plate, or one which has already been oily, will answer for driving the dynamometer. A few used 10" and 11" plates should be reserved for this purpose. The new plate intended for use in the chassis should never be used on the dynamometer on account of the risk of oil getting on it. After removal from the test bed, and before fitting the new driven plate, the flywheel and clutch should be cleaned free from oil. A plate which has once been oil, will seldom make a good clutch. Rm{William Robotham - Chief Engineer}/NRC.{N. R. Chandler} | ||