Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 146
FIG. 97.—HOLTZER-CABOT RINGER. relation with the gongs, is shown in Fig. 98. This general con-struction ma^f be considered standard, and has given long-continuedsatisfaction in use. The gongs are mounted on adjustable stand-ards pivoted at their upper ends and each held by a screw engaginga slot in… … FIG. »S.—HOLTZER-C.\BOT RINGER. spring brass, its ends being fitted over the pole-pieces of the mag-nets which project slightly through it. The adjustment of thearmature toward or from the pole-pieces is effected by means of ascrew, best shown in Fig. 97, this screw b^ing threaded into thecenter of…
Telephone
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