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).
Interchangeability and fitting of turned scraper rings from Bentley models to the 25/30HP model.
| Identifier | ExFiles\Box 144\3\ scan0091 | |
| Date | 13th July 1936 | |
| Y220 Hy{Tom Haldenby - Plant Engineer} By Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} MX{John H Maddocks - Chief Proving Officer}6/T13.7.36 25/30HP OIL CONSUMPTION At a Conference on the above the question of turned scraper rings was discussed. Hy{Tom Haldenby - Plant Engineer} had a 25/30 piston with a turned ring fitted. We find on investigation that no 25/30 pistons have been fitted with turned rings. The instruction to fit these rings apply to Bentley only - see memos HS{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}22/EW26.5.36 and BY/OS1/EH11/11.6.36 - we find that 18 sets have been fitted. As the rings are interchangeable we have requested the Works to fit the remainder of the 50 sets of turned rings to the 25/30HP instead of Bentley. Will By.{R.W. Bailey - Chief Engineer} please instruct. [Signature] | ||