Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 272
mutator as to send the direct current into any given armature loop at that instant when this loop occupied such an angular position with reference to the direction of the lines of force of the magnetic field as to provide a turning couple between the lines of force and the loop, this action arising… … / / / // Fig. II. In Fig. 4 the limiting condition was to have the loop revolving at such a rate as to cause it to move into the position of reverse cutting of lines of force simultaneously with the change of direction of flow of the current supply. In other words, the loop had to revolve in step…
Engineering
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