Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 270
inding M and ener-gizes magnet F; Figs. 3,226 to 3,229.— Partrick and Wilkinswood box type bells.Fig. 3,226, regulargong; fig. 3,227, sleighgong; fig. 3,228, cowgong; fig. 3,229, dinnergong. In construc-tion, the frame isstamped out in onepiece, with the ex-ception of the gongpost, and it is… … 2,362 HAWKINS ELECTRICITY 2. Magnet F attracts end A of the armature; 3. Contact maker closes circuit through demagnetizing coil D, and sin-gle coil S (of magnet G); 4. Demagnetizing coil demagnetizes F, and 5. Magnet G attracts end C of the armature; 6. Contact maker breaks the circuit through…
Electrical engineering
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