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).
The comparative testing of valve springs from various suppliers.
| Identifier | ExFiles\Box 80\3\ scan0253 | |
| Date | 23th February 1914 | |
| COPY. COPY. To Wor.{Arthur Wormald - General Works Manager} fro Mr Hives from R.{Sir Henry Royce} Copy to J.{Mr Johnson W.M.} Copy to E.{Mr Elliott - Chief Engineer} Copy to Na.{Mr Nadin} R6/P 23. 2. 14. Valve Springs. Wor{Arthur Wormald - General Works Manager}/SM1/M18214. Test Terry & Sons' valve springs. Compare Terry & Sons, Poldi, Salters and Rolls-Royce of the same design and strength at the same speed, i.e. less than jumping - no spring should be tested with the valves jumping off their cams, - and see if one make stands out specially good. Cancel others. The springs which we want to introduce are the ones for higher speed, i.e. like those on 2704. R.{Sir Henry Royce} X372 | ||