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).
Relaying Mr. Royce's remarks on the case-hardening of control forks and pins.
| Identifier | ExFiles\Box 66a\4\ scan0121 | |
| Date | 9th June 1926 | |
| To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to BJ. Hs.{Lord Ernest Hives - Chair} X.8240 E2/M9.6.26. RE. CONTROL FORKS AND PINS ETC. In reply to your BY2/H7.6.26., with which you sent two samples of control forks fitted with pins that had no shoulders and were lapped to an accurate dia. would you please note Mr. Royce's remarks as follows :- "We agree with what you have done but will you go a little further and try case-hardening both fork and lever. We should not anticipate any trouble from distortion, and we think all the surfaces should be hard, otherwise the soft surfaces will pick up the grit and lap away the hard ones". E.{Mr Elliott - Chief Engineer} | ||