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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 578

An illustration from American telephone practice, 1905, leaf 578
B operators, this may be done bydividing the bus-bar, T, as already pointed out, and placing theshunt in circuit with each of the leads to the bar so divided. Another shunt, r, is placed in the discharge lead, v, which sup-plies the bus-bar, V, from which the line lamps, the operators trans-mitters… … B56 POWER PLANTS FOR COMMON BATTERY SYSTEMS. 557 through the repeating coils, this shunt serves to measure the entirecurrent consumed by the subscribers lines in talking. Of course, it is possible to effect a greater subdivision of the cur-rent, as for instance, a shunt might be placed in each of…

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