Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 428
ut the extra resist-ance as the motor attainsspeed by gradually mov-ing S to point 5. Tostop the motor, open themain switch, A, and thenplace the arm of thestarting box on the offposition, so that themotor will be ready forre-starting. In an automatic motorstarting box, such as thatdepicted in Fig.… … StartingRheostat
Electricity · Magnetism
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