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).
Patent for a brake controlling device.
| Identifier | ExFiles\Box 147\2\ scan0284 | |
| Date | 12th April 1940 | |
| 1247. Rm{William Robotham - Chief Engineer}/MHR.{M. H. Rigby} from Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer}16/ML.12.4.40. With reference to the attached, is any of this of interest to you? Rm.{William Robotham - Chief Engineer} (Re patent for brake controlling device.) | ||