Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 459
FIG. 8X5.-HIBBARD PARTY LINE SYSTEM.436 PARTY LINE SYSTEMS. 437 scriber on the party line; thus, on a four-party line four jacks wouldbe used for each line, instead of one, as in the original Hibbard sys-tem. The arrangement of the subscribers apparatus with respect to theline is the same in all… … FIG. 32G.—McBERTYS MODIFICATION OF HIBBARD SYSTEM. jacks, I, 2, 3 and 4. Each of these has a short line spring, n, along spring, n, and a tubular thimble, n°. The connection of thesesprings and thimbles to the conductors of the line is different in thecase of each jack as examination will readily…
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