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).
Three methods of dynamo output regulation, advocating for the purely electrical system used in the T. & M. Dynamo.
| Identifier | ExFiles\Box 3\5\ 05-page005 | |
| Date | 1st October 1911 guessed | |
| (1) By controlling the speed of the dynamo. (2) By mechanical regulation of the output. (3) By purely electrical regulation. (1) In this system the speed of the dynamo is usually regulated either by a slipping belt or a slipping clutch, both of which present many mechanical and practical difficulties and are obviously unreliable. (2) The regulation of the output may be controlled by mechanically varying a resistance in the field circuit according to the speed of the machine, but this necessitates the use of a governor operating a brush sliding over various contacts which are all subject to considerable wear and tear and require frequent adjustment. (3) The control by purely electrical means is by far the simplest and may be effected in a variety of ways, and it is to this class of machine that the T. & M.{Mr Moon / Mr Moore} Dynamo belongs, and it will be shown that not only is the construction of the machine extremely simple but that the results obtained are quite distinct and considerably in advance of any other system. In the following description of the construction and theory of the T. & M.{Mr Moon / Mr Moore} Dynamo the main fundamental principles are fully described, and are accompanied by diagrams and curves illustrating the results obtained from a bench test carried out with a Standard Model T. & M.{Mr Moon / Mr Moore} Patent Dynamo. | ||