Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 176
er reason, it would seem that the WesternElectric Company would adopt its customary modern methods inthis case also. In Fig. 134 is shown the hook-switch now embodied in all thesubscribers instruments manufactured by the Kellogg Switchboardand Supply Company. The hook lever, L, is of brass, pivoted… … FIG. 133.—WARNER HOOK SWITCH. a lug on the bracket, B, these springs being insulated from eachother by hard rubber blocks and bushings. Spring, 4, is madelonger than the others, so as to engage in a slot in the lug, /, caston the side of the hook lever. The springs are platinum-pointed,as shown,…
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