The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 377
OVERHOUSE WORK Trussed Pole In good modern work in towns nearly all the wires are carried in underground cables ; but it is stillnecessary to run a number of wires overhead for the distribu-tion of the lines from the ends of the cables, which are usuallyterminated on what is called a distributing… … Fig. 342.—Iron Pole complete with Arms, Stays, etc. and arms are constructed of iron or mild steel, on the modelintroduced about 1881 by Mr A. E. Bennett. Fig. 342 shows one of these poles and the method of fixingon the roof ridge of a building. Special cast-iron pole-chairs are used in this case,…
Telephone
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