. The Street railway journal . On the top of this block an angle-iron is bolted,which is secured to the shoe-bar and insulated therefrom byfibre sheets and washers. This triple insulation has been foundnecessary because of the severe exposure to weather, and thevery serious character of short circuits which would resultfrom its failure. The whole shoe is suspended from the end ofa rectangular bar pivoted at the distant end and free to slide upand down in a slotted piece. This construction will be betterunderstood by consulting Fig. 2, which shows the shoe and itssupporting bar. Fig. 3 shows an
. The Street railway journal . On the top of this block an angle-iron is bolted,which is secured to the shoe-bar and insulated therefrom byfibre sheets and washers. This triple insulation has been foundnecessary because of the severe exposure to weather, and thevery serious character of short circuits which would resultfrom its failure. The whole shoe is suspended from the end ofa rectangular bar pivoted at the distant end and free to slide upand down in a slotted piece. This construction will be betterunderstood by consulting Fig. 2, which shows the shoe and itssupporting bar. Fig. 3 shows an end view of the shoe, thecable connections and the springs controlling its lateral posi-tion. It will be noted that hoods are fastened over the insu-lating portions of the shoe to shed water. The shoe circuit is protected by a fuse, of the Case type,immediately above it. This is a fuse copper strip with itscarrying capacity in the center weakened by means of a re-duction of its section by a large hole in the center. The loco-. cates the full current taken by the locomotive, and which, forthe present, is limited by the Baltimore & Ohio management to2000 amps. Fig. 5, the interior view of the locomotive, shows,to some extent, the arrangements described in the foregoing,while a general view of its appearance can be obtained by con-sulting Fig. 6, which shows a view of the exterior of oneof the units. These units are now used in pairs to handle thefreight traffic through the Belt Line tunnel. They are, ofcourse, of slower speed than those that will probably be em-ployed for the passenger traffic in and about New York City,and are of somewhat less power. There is no doubt, how-ever, that they have the greatest draw-bar pull of any electriclocomotive now in existence. IMPROVEMENTS IN DUBUQUE, IA. The Union Electric Company, which operates the Dubuqueelectric railway and lighting systems, is planning a numberof important extensions this year, which, when completed, willinvolve an out
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
