Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 251
n of an armature by an electro-magnet markswere made upon a moving strip of paper. In 1844, his experi- j mental line connectedthe city of Washingtonwith Baltimore. In 1845this line was opened topublic traffic and after ayear of successful opera-tion, the construction ofMorses system of tele-graph… … ELECTRICAL ENGINEERING 249 The Morse instrument 195. The sounder or the Morse (see fig. 106), namedafter its inventor, is the most widely used apparatus in tele-graphy. It consists of an electromagnet a which when mag-netized by a current passing through its coils for a shortlength of time,…
Electrical engineering
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