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).
Instructions regarding piston rings made from a special metal, noting the breakage percentage is the same as standard rings.
| Identifier | ExFiles\Box 37\2\ scan 170 | |
| Date | 19th November 1917 | |
| R.R. 300 (120 B) (SC. 576. 25.2.16) E.P. 1262. X.3185 64632 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark Hives Date: 19-11-19/7 Order No. Customer's No. Re: Piston Rings in Special metal X3185 We have finished 2 sets of Piston Rings in Special metal supplied by Messrs Stubbs the Hammering Operation is the only one that is likely to present any trouble & on these Rings we find about the same percentage of breakages as on Standard. Mr Hives will confirm this. We can find no advantage or disadvantage in this metal. Signed: J.A.C. E.{Mr Elliott - Chief Engineer} Hives This Sheet must be filed on completion of the work. | ||