. Electric railway journal . 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
. Electric railway journal . 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. FIG. 8—HANGER SECURED TO SPAN WIRE BY MEANS OFSTEEL WEDGE this wedge is unfinished and as it is driven in it gripsthe span wire firmly. A single wedge serves for bothends of each yoke. Other kinks from the line department of the Cleve-land Railway will be given in a later issue. Theseinclude a spring for installing hangers in trolleytroughs, a glass-insert section insulator, a threadlesspull-over yoke and hanger, an ear designed for accuratealignment and other practical devices. Using Up Short Lengths of Copper-Leaf Brushes BY H. E. DAVIS Electrical Engineer New York State Railways, Syracuse, N. Y. ! While the use of copper-leaf brushes is being rapidlysuperseded by the more modern metal-graphite brushfor use on slip rings of rotary converters, there are alarge number of the old-style brushes still in use. Whenthe leaves become short, considerable saving can be madeby using up the short sections in the following manner: Two short brushes are beveled on the soldered ends,
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