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).
Failure and return of two Bentley dynamos due to commutator blacking.
| Identifier | ExFiles\Box 131\4\ scan0304 | |
| Date | 17th June 1937 | |
| To Rm{William Robotham - Chief Engineer}/Wst. from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} C. By.{R.W. Bailey - Chief Engineer} C. Rm.{William Robotham - Chief Engineer} 1113 Kingsbury June 17th.1937 BENTLEY DYNAMO FAILURE. Two dynamos are being returned to the Works today for continual blacking up of the commutators. In both cases the breather is fitted to the tachometer drive. (1) Chassis B.121.H.M. Mileage 8,453. Dynamo No.E.7.B.F. (2) Chassis B.122.J.D. Mileage 3,658. Dynamo No.S.8.B.R. These are being sent under order No. S.R.4321. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||