Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 475
sm is mounted on a horizontaliron plate, d, the bell being mounted in a horizontal position be-low the plate, and adjustable toward or from the tapper inthe usual manner by means of a pivot lever and set screw. PARTY LINE SYSTEMS. 453 as shown in the detail, Fig. 333. The polarized electro… … FIG. 333.—DETAIL OF KELLOGG PARTY-LINE BELL. pole pieces, s, s, of soft iron are adjustably secured to the frontends of the cores of the magnets in such a manner as to allow thearmature, a, to freely vibrate between them. The vibrating part of the mechanism, including an armature, aball-striker and…
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