Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 286
and astonishment. Electric bells are now in verygeneral use in this country, aswell as in America, and theyseem almost too well known toneed description, but perhaps abrief account of their construc-tion and manner of working maynot be without interest. The ordinary form of electric^bell, with its… … 266 ELECTHICITY IN MODERN LIFE. button. When the circuit is closed, the armature ofthe electro-magnet is attracted by the iron core withinthe coils, and the hammer attached to it strikes the bell.When the armature is thus drawn towards the electro-magnet, the circuit is broken, the electro-magnet…
Electric industries · Electricity
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