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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 490

An illustration from American telephone practice, 1905, leaf 490
te, again toward the front of the box. Under nor-mal circumstances it strikes against stationary pin, a^, and rollsback into the positon shown in Fig. 342, resting between the pins..e and r. These two pins are carried on the pivoted armature,e, of the electro-magnet, /, this armature being a flat… … ^.\\\\\V^\\\\\\\\^:.- ^>x^^_^\VNSsk\sN\mNls\^^ :6 343.—SCRIBNER COIN-COLLECTING DEVICE. ner as an ordinary ringer, and therefore when its coils are traversedby a current in one direction the armature= will be tilted so as towithdraw one of the pins, e or r, from the chute and to push theother…

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