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).
Suitable materials for piston ring stops.
| Identifier | WestWitteringFiles\P\July1926-September1926\ Scan001 | |
| Date | 1st July 1926 | |
| R.R. 285A (100 T) (S.H. 159. 11-8-26) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 TO HS.{Lord Ernest Hives - Chair} FROM R.{Sir Henry Royce} Copy to BJ. " RG.{Mr Rowledge} " BY.{R.W. Bailey - Chief Engineer} ORIGINAL R2/M1.7.26. PISTON RING STOPS. X2103 /2603 ring Piston/pins should be in some material having as nearly as possible the same co-efficient of expan- sion as the metal of the piston, and non-cutting, so as not to injure the cylinder bore. I suggest we try monel metal or other tough non-ferrous alloys such as:- Silicon copper. Manganese bronze. Delta metal. Nickel brass. Then the top of the pin can be made flush instead of recessed, thus reducing the gas leak. R.{Sir Henry Royce} | ||