. American telephone practice . FIG. 580.—HELVIN TIE. main lead. This is shown in the upper left-hand corner of The use of cable for corner and branch work frequently savesmuch complexity in difficult places, leaving the work much moreopen and FIG. 681.—COPPER-WIRE TIE. After about a mile of pofes have been set and guyed, and thecross-arms, pins, and insulators put in place, the process of string- 798 AMERICAN TELEPHONE PRACTICE. ing, where but a few wires are to be run, consists in placing thereels on hand barrows, as is shown in Fig. 577, or on a cart, andpaying them as they
. American telephone practice . FIG. 580.—HELVIN TIE. main lead. This is shown in the upper left-hand corner of The use of cable for corner and branch work frequently savesmuch complexity in difficult places, leaving the work much moreopen and FIG. 681.—COPPER-WIRE TIE. After about a mile of pofes have been set and guyed, and thecross-arms, pins, and insulators put in place, the process of string- 798 AMERICAN TELEPHONE PRACTICE. ing, where but a few wires are to be run, consists in placing thereels on hand barrows, as is shown in Fig. 577, or on a cart, andpaying them as they go, drawing the wire up to each pole separately. When, however, a large number of wires are to be run, the methodis briefly as follows: Ten reels similar to that shown on the hand-barrow of Fig. 577, ssjnrct
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Keywords: ., boo, bookcentury1900, bookdecade1900, bookidamericantelepho00mill
