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).
Modification to slipper clutch for Starter Motor Drive.
| Identifier | ExFiles\Box 171\3\ img040 | |
| Date | 5th May 1920 | |
| STANDARDISATION of CHASSIS PARTS. Description of Parts. slipper Modification to clutch for Starter Motor Drive. Origin. The present clutch is unsatisfactory, it either slips excessively or seizes up. Experimental Test Report. The present clutch as arranged on the starter drive is faulty, there have been several cases of it slipping so that the starter would not turn the engine. There has been one case of the shaft breaking due to the clutch seizing up. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Road Test Report. One clutch has been tested under all conditions on a car. We find that with the friction adjusted so that 450 lbs. pull is necessary on the chain before it slips gives the best results. Cost of Parts in Works and Stores which will be scrapped if commenced on:- Signature of Mr. DELOOZE that above is correct. SIGNATURES Mr. JOHNSON. 26.5.20. Agreed. C.C.Johnson. Mr. ROYCE. 22.5.20. Agreed FHR call this slipper drive not clutch Mr. WORMALD. 6-5-20. Agreed [illegible] Mr. NADIN. Mr. PLATFORD. 7.5.20. Agreed if O.K. in case friction surfaces get oiled. E.P. Mr. NORTHEY. 7.5.20. Agreed if tests are satisfactory. P.N. Mr. BAILEY. 8.5.20. Agreed. By.. Barrington. Mr. BARRINGTON. 8.5.20. Agreed. T.B.Barrington. Mr. DAY. 7.5.20. Agreed. Da.{Bernard Day - Chassis Design} | ||