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 inquiry for a principle applying acceleration and deceleration to a rotary valve.
| Identifier | ExFiles\Box 134\1\ scan0214 | |
| Date | 10th July 1940 | |
| NW.{N. Walker - Patents} from Rm.{William Robotham - Chief Engineer} 1129 Rm.{William Robotham - Chief Engineer}1/ML.10.7.40. Herewith PL.278, showing a simple means of applying acceleration and deceleration to a rotary valve. We shall be interested to know whether a patent can be obtained on the principle. Rm.{William Robotham - Chief Engineer} | ||