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).
With suggestions for improving the design of Magneto Fabric Couplings.
| Identifier | ExFiles\Box 4\5\ 05-page257 | |
| Date | 2nd February 1924 | |
| X8790 SECRET R1/MS.2.24. To E.A.C. RG.{Mr Rowledge} FROM R.{Sir Henry Royce} RE. E.A.C. MAGNETO FABRIC COUPLINGS. X.8790 X.9100 These seem O.K. but I should like to point out :- (1) That you should use a really strong and large fabric on the engine side of the dynamo, because there may be great stress spannering the adjustable coupling. (2) The adjustable coupling might be made less expensively by - [Diagram of a coupling component] 2 discs of sheet steel - 1 serrated right through and the other smaller for cramping. Riveted together to form one piece. Friction of nut assumed to be sufficient for over-run. Check plate could be used for nut. This admits of parallel serrations. Another idea is to use cone fit and friction of plain cone. The parallel job described above might be the cheapest and most satisfactory. R.{Sir Henry Royce} | ||