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).
Material and design specifications for Goshawk steering column controls and instrument board screws.
| Identifier | ExFiles\Box 56\3\ Scan089 | |
| Date | 1st June 1922 | |
| To BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} c. to Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} c. to E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c. to EP.{G. Eric Platford - Chief Quality Engineer} Hy.{Tom Haldenby - Plant Engineer} X.4239. R3/M2.6.22. GOSHAWK CONTROLS. X.4239. With reference to the steering column controls it is understood that most of these parts are made in nickel silevr. This should be as hard as is possible. The black colouring and the white lettering should be better than has been done on our part of the work. Levers should be of hard material and thicker gauge. The spring to make them engage with the ratchet shouldbe lighter in pressure and of more even rating. The stop upon which these handles are depressed should be further out and not on unnecessary depths the lever is likely to be overstrained and bent, as in the case of No.4 cylinder. I am inclined to think that the stop might come out-side the ratchet with advantage. Mr. Evernden has suggested the filling in of the top plate so as to hide dirty and untidy places. The screws for the instrument board throughout should be of one uniform pattern, and I think the best is the electrician's form of slightly rounded head with radius so as to engage the screw driver satisfactorily and yet avoid sharp corners. On No.4 Instrument board there are all sorts, common countersinks, special countersinks, and round-heads. R.{Sir Henry Royce} see original for sketch. | ||