. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . FiG. 49.—Thomson motor. 554 MOTORS, Fl<i. 50. Kennedys motor. nating-current circuit. / / is a mass of laminated iron, in the interior of which the arma-ture revolves, vrith its three coils, B, B\ B\ wound on a core of sheet-iron disks. The com-mutator short-circuits the armature coils in succession in the proper positions to utilize therepulsive effect set up by the currents which are induced in them
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . FiG. 49.—Thomson motor. 554 MOTORS, Fl<i. 50. Kennedys motor. nating-current circuit. / / is a mass of laminated iron, in the interior of which the arma-ture revolves, vrith its three coils, B, B\ B\ wound on a core of sheet-iron disks. The com-mutator short-circuits the armature coils in succession in the proper positions to utilize therepulsive effect set up by the currents which are induced in them by tiic alternations inthe field coils. The motor has no dead point, and will start irom a state of rest and giveout considerable power. A curious property of the machine is that at a certain speed,depending upon the rapidity of the alternations in the coil, C. a continuous current passesfrom one commutator brush to the other, and it will energize electro-magnets and performother actions of direct currents. Rdiikin Knmedys Alternating-current Motor is shown in Fig. 50. It consists oftwo ordinary dynamos, with ring or drum armatures and laminated field magnets ; botharmatures are on the same shaft, their coils being conn
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
