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).
Correspondence and testing of Perfect Circle scraper rings from Messrs R. A. Rothermel Ltd.
| Identifier | WestWitteringFiles\M\October1924-December1924\ Scan56 | |
| Date | 18th December 1924 | |
| TO HS.{Lord Ernest Hives - Chair} FROM E.{Mr Elliott - Chief Engineer} Copy to OJ. ORIGINAL E2/M18.12.24. V740 re. PERFECT CIRCLE SCRAPER RINGS. V740 We are sending you herewith correspondence from Messrs R.{Sir Henry Royce} A.{Mr Adams} Rothermel Ltd., together with a description and sample of the perfect circle scraper ring which they are offering. Mr. Royce would like you to obtain 2 sets of these and try them out on any engine which you think would afford the best test of their supposed qualities in keeping down excess of oil. It might be wise to make a trial on both car and aero engines. Perhaps you would kindly communicate with Messrs R.{Sir Henry Royce} A.{Mr Adams} Rothermel Ltd. accordingly. E.{Mr Elliott - Chief Engineer} | ||