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).
Strengthening of magneto brackets by increasing the lug thickness.
| Identifier | ExFiles\Box 37\3\ scan 129 | |
| Date | 28th February 1918 | |
| X3293 To EP.{G. Eric Platford - Chief Quality Engineer} from BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to B. c. to EH. 28th February - 1918. BY12/P28218. RE MAGNETO BRACKETS. Referring to your memo EP{G. Eric Platford - Chief Quality Engineer}4/F27218, I think that you have placed a wrong construction upon the letter which I recently sent you, which I had received in turn from the R.N.A.S. Scilly Isles. It was their complaint you will remember that the brackets had been very much over-tightened, and they educed evidence to demonstrate this point, evidence which in my opinion, was certainly well founded. My point in writing the present memo, however, is to call attention to the fact which I mentioned, I believe, when circulating the above report, that we had increased the strength of the bracket by thickening up the lugs 30%, while at the same time in order to prevent the lugs being thin, I had modified the limits so that the lugs could be anything from .225" thick each to .250". The present thickness of the lug, apart from the limits is .225". In addition to the recent increase of thickness, which brought the dimension up to the point specified, the holes which take the pins are arranged so that they are further from the top of the lug than the bottom, which again represents an increase in strength. I think therefore that in view of our increased dimensions we are certainly not sitting still doing nothing contd. | ||