Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 627
NS. heavy strips of cold rolled iron, a single strip containing from fiveto twenty banks, each bank containing twenty pairs; eachstrip therefore contains from loo to 400 pairs of arresters,according to the requirements of the available space and ofthe cable distribution within the office. A view of… … FIG. 438.-KELLOCG CARBON ARRESTER FOR TELEPHONE SETS. arrester strip, heat coils and carbons. The heat coil in the left handportion of this figure is shown in proper relation to its springs,as in normal use. That at the right hand portion, however, showsthe heat coil after it has been operated,…
Telephone
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