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).
Recommendation regarding the turning of a band of metal on split type pistons.
| Identifier | ExFiles\Box 77\3\ scan0034 | |
| Date | 28th November 1919 | |
| BY.{R.W. Bailey - Chief Engineer} from EH. EFC x.3/832 EH5/LG28.11.19. RE PISTONS. With reference to split type pistons, we recommend that the band of metal above the split portion should be turned clear. We see no reason why this should not be the diameter as the band below the scraper ring. EH. | ||