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).
Experiments in France to fix exhaust valves losing clearances, suggesting salt-cooled valves from the 'R' engines as a solution.
| Identifier | ExFiles\Box 14\6\ Scan203 | |
| Date | 22th July 1931 | |
| o/7230. To Sg.{Arthur F. Sidgreaves - MD} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/MJ.22.7.31. 25-EX. With reference to Sg{Arthur F. Sidgreaves - MD}2/E14.7.31. Further to our conversation on the subject, we are carrying out experiments in France to overcome this trouble of the exhaust valves losing their clearances. We have a known means of overcoming the trouble if it persists, and that is the salt-cooled exhaust valves, which are doing so well on the "R" engines. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||