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).
Design and requirements for a sequence starter, including fabric coupling, spring mechanism, and coil windings.
| Identifier | ExFiles\Box 64\3\ scan0030 | |
| Date | 10th January 1925 | |
| X.8650. To EFC. HS.{Lord Ernest Hives - Chair}) from R.{Sir Henry Royce} E.{Mr Elliott - Chief Engineer} AJS.) copy to CJ. BJ. RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} RL/M10.1.25. SEQUENCE STARTER. X.8650. [Handwritten and struck through: X4168] We seem a long time in hearing more of this. It is urgent because it permits of the permanent arrangement of fabric coupling on the gearbox shaft, which is so necessary. Also whether the spring is effective in preventing the shock, and also if it gives the necessary flexibility to keep the gear in mesh driving all the time. From some of the notes I remember some remarks about a resistance. There should be no external resistances except perhaps the small high resistance to reduce the sparking at the contacts. The actuating coil and the auxiliary motor coils (A.F.C.) should be wound each to give suitable strength of magnetism, and as far as I remember it seemed to me that the auxiliary field coils should be wound finer, and the actuating coil coarser than the first attempt. I am trusting to Mr. Clerk to get these to their best proportions. R.{Sir Henry Royce} | ||