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).
Scheme for adapting Ph III Valve Springs to the Ripplet engine by deleting grommets.
| Identifier | ExFiles\Box 118\1\ scan0243 | |
| Date | 25th April 1940 | |
| To. Rm.{William Robotham - Chief Engineer} c.c. EV.{Ivan Evernden - coachwork} File 1022 Rm{William Robotham - Chief Engineer}/BT{Capt. J. S. Burt - Engineer}1.8/JMS 1-5-80 Rm{William Robotham - Chief Engineer}/HH.27 25. 4. 40. Ripplet Sec: 5060. Valves & Fittings without Grommets We send you herewith 2 blueprints of scheme showing the Ph III Valve Springs adapted to the Ripplet engine deleting the grommets. This scheme as drawn applies only to Ripplet but only varies in length of valves and valve guide for the remaining rationalised engines. I am instructing this type of valve gear on B. 40. B. 60 and B. 80. Rm{William Robotham - Chief Engineer}/HH. | ||