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).
Calculations for the exact lift of a Seagull Valve Rocker.
| Identifier | ExFiles\Box 72\1\ scan0220 | |
| Date | 19th January 1923 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Hs.{Lord Ernest Hives - Chair} X.9090. El/M19.1.23. SEAGULL VALVE ROCKER. CALCULATIONS FOR EXACT LIFT. X.9090. X9060 We send you herewith drawing No. LeC.1671, shewing the above. E.{Mr Elliott - Chief Engineer} | ||