Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 441
omagnet M,M,E, in fi-ont of the polesof which is supported an armature A bya spring >S^. At the end of the armatureis attached a hammer H, placed in such aposition that it will strike a bell B whenthe armature is drawn to the poles ofthe magnet. A current breaker, consistingof a platinum-tipped… … Fio. 521.—Electric bell and its connections.At G is shown a section of the push-button. The figure shows the bell whenthe button is not pressed. The currentmay pass in either direction through thebell.
Physics
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