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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 710

An illustration from American telephone practice, 1905, leaf 710
Cabot type. In Fig. 499 is shown the battery room, this containing two bat-teries of ten cells each of chloride accumulators, each cell havingeleven plates. Sufficient capacity is provided in the tanks for addingplates enough to supply the future growth of the switch-board upto its ultimate… … CENTRAL OFFICE EQUIPMENTS. 689 In Fig. 500 is shown a plan of the operating room. The turningsection at the end of the first section is placed over an openingin the floor, through which passes a cable run leading from theintermediate distributing frame below. The present arrangementof the…

Telephone

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