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American telephone practice (1905)

Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 703

An illustration from American telephone practice, 1905, leaf 703
agreat extent a residence district. The operating room has a hard-wood floor over which rubbertiling is laid, this being advantageous in point of the degree ofquiet which it aflords, and also in the ease with which it may be keptclean. In the lay-out of this building it would have been more… … FIG. 494.-ENTRANCE TO CABLE SHAFT-LOS ANGELES OFFICE. and by placing the main distributing board as nearly in a lineabove the cable vault as possible, as has been done in this case, muchis saved in length, and therefore in the cost of the lead-coveredcable leading from the subways to the…

Telephone

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