. American telephone practice . result of this arrangement channels or horizontal runsare formed for the jumper wires between the vertical and lateralbars, and vertical channels or falls between the sets of intersectinghorizontal bars. On the ends of the lateral bars, i, are verticalstrips, d and d, of insulating material, upon which are arrangedthe terminals for the various wires in the cables and the jumpers. 11 hi 1 1 1 i i 1 1 1 f i 1 i r J i I I I I I I i I 1 t i I I i I FIG. VIEW HIBBARD DISTRIBUTING FRAME. The general plan by which the wires in old magneto exchangeswere led fr
. American telephone practice . result of this arrangement channels or horizontal runsare formed for the jumper wires between the vertical and lateralbars, and vertical channels or falls between the sets of intersectinghorizontal bars. On the ends of the lateral bars, i, are verticalstrips, d and d, of insulating material, upon which are arrangedthe terminals for the various wires in the cables and the jumpers. 11 hi 1 1 1 i i 1 1 1 f i 1 i r J i I I I I I I i I 1 t i I I i I FIG. VIEW HIBBARD DISTRIBUTING FRAME. The general plan by which the wires in old magneto exchangeswere led from the cable heads to the switch-board is shown quiteclearly in Fig. 448, where I! represents the cable head carrying 616 AMERICAN TELEPHONE PRACTICE. the terminals of the line cable, C. The various wires, w, leadingfrom the cable head are bunched j^ito a cable, C2, which enters thecable run in the box beneath the frame, and after passing in ahorizontal direction to the proper insulating strip, d, is led upward € m u u Of tt. u uFIG. 451.—DETAIL OF CONNECTING STRIPS. and fanned out, the various pairs of wires being soldered to theouter ends of the terminals on the insulating strip. The details of these strips and the methods of attaching thewires of the cable are shown in Fig. 451, in which p and p arethe connectors screwed to the strip, d. These connectors haveoutwardly bent lugs, u, to which the wires may be soldered.
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Keywords: ., boo, bookcentury1900, bookdecade1900, bookidamericantelepho00mill
