. Electric railway journal . FIGS. 5 AND 6—ILLUSTRATING THEINSULATION OF THE TWO TYPESOF FEED-IN EARS July 14, 1917] ELECTRIC RAILWAY JOURNAL 65 to take a wire in. in diameter, or whatever sizetrolley wire the ear is to be used with. By this meansthe worn portion of the trolley wire is protected in theside groove of the ear and does not receive any furtherwear. The clinching of the ear at each side of thisworn portion gives mechanical and electrical fasteningon the unworn trolley wire at either side of the oldear location, and thus greatly strengthens and prolongs. Sections a+CL, A, D, C.
. Electric railway journal . FIGS. 5 AND 6—ILLUSTRATING THEINSULATION OF THE TWO TYPESOF FEED-IN EARS July 14, 1917] ELECTRIC RAILWAY JOURNAL 65 to take a wire in. in diameter, or whatever sizetrolley wire the ear is to be used with. By this meansthe worn portion of the trolley wire is protected in theside groove of the ear and does not receive any furtherwear. The clinching of the ear at each side of thisworn portion gives mechanical and electrical fasteningon the unworn trolley wire at either side of the oldear location, and thus greatly strengthens and prolongs. Sections a+CL, A, D, C. FIG. 7.—DETAILS OF EXTRA LONG EAR FOR RECLAIMING WORNTROLLEY WIRE the life of the trolley wire at a point which would other-wise soon break. Special Straight-Line Hanger A special straight-line hanger which is designed tobe secured to the span wire by means of a steel wedgeis shown in Fig. 8. This is made of malleable iron withthe steel stud surrounded by insulating material inthe usual manner. The yoke is designed so that thespan wire slides into the grooves on opposite sides atthe two ends. A steel wedge, 9 in. long and tapered% in. in 12 in., is driven in the slot provided for thepurpose on top of the span wire. The bottom edge of
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
