Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 556
be in con-tact sometimes with the metal, at other times with the wood ofthe surface of the cylinder, which causes it to be sometimes incommunication, and at other times not in communication wnthone of the extremities of the induced wire, whilst the formerspring, by pressing against the metallic… … Fig. 334. iiicf in the same direction. It is sufficient for this to combinethe interruptions of the communication between the extremityof the axis and the spring that rests against it, so that they shalloccur at the moment when the armature approaches the magnet,or else at the moment when it is…
Electrical engineering
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