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).
Method of fixing control pins, proposing a press fit to prevent them from working loose.
| Identifier | ExFiles\Box 66a\4\ scan0092 | |
| Date | 20th April 1925 | |
| X. 8240 To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to CJ. Hs.{Lord Ernest Hives - Chair} E1/M20.4.25. CONTROL PINS FIXED BY HOLLOW RIVETTING. With regard to your memo. BY3/H16.4.25., I had discussed this matter with Mr. Shelton before leaving Derby on the last occasion, and it was arranged that we should ask for these control pins to be a press fit in the lever ends, either sheet metal or drop forged. We believe that that these control pins are slack in the holes and that it is impossible to create enough load between the flanges to hold them against a reversing force on the ball, hence the pins work loose. We should like to know if you can give us the press fit we ask for as otherwise we shall have to consider making all pins with a taper end and no collar. E.{Mr Elliott - Chief Engineer} | ||