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).
Oil consumption tests and the interchangeability of groove-type scraper rings for Bentley and 25/30 engines.
| Identifier | ExFiles\Box 87\2\ scan0245 | |
| Date | 17th November 1936 | |
| 236 By.{R.W. Bailey - Chief Engineer} from Rm.{William Robotham - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} c. to E.{Mr Elliott - Chief Engineer} Rm{William Robotham - Chief Engineer}5/R.17.11.36. SCRAPER RINGS OF THE GROOVE TYPE. With reference to By.3/G.16.11.36., we have done the majority of our oil consumption tests on the Bentley. We should, therefore, like the special rings made to suit this engine; incidentally, in this case, they could also be used on the 25/30 as the rings are interchangeable. Rm.{William Robotham - Chief Engineer} | ||