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 investigation of valve failures in Bentley cars.
| Identifier | ExFiles\Box 131\4\ scan0193 | |
| Date | 6th May 1937 | |
| 11/3 To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} Kingsbury. 6th May, 1937. Bentley. Valve Failures. We have tested valves out of two cars since receiving your memo and cannot find any traces of cracks. A system has been established to watch the valves closely. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||