. The street railway review . ough all the stages of bond practice from nobonds at all to the latest development in that line which wehave worked out and which gives every indication of fillingthe bill. Previous to the installation of the heavy iron, andin fact on portions of our line at present, horse car rail of thefiat L variety with iron plates at the joints does servicewith not a suspicion of a liond, occasional taps being made to atrack feeder overhead. This is with a serious loss in thereturn, however, and is somewhat more to be condemnedeven than the use of the poor bond connections wh
. The street railway review . ough all the stages of bond practice from nobonds at all to the latest development in that line which wehave worked out and which gives every indication of fillingthe bill. Previous to the installation of the heavy iron, andin fact on portions of our line at present, horse car rail of thefiat L variety with iron plates at the joints does servicewith not a suspicion of a liond, occasional taps being made to atrack feeder overhead. This is with a serious loss in thereturn, however, and is somewhat more to be condemnedeven than the use of the poor bond connections which wehave used on other parts. My attention was directed to the condition of the firstbonds used in our new construction about six months afterthey were put in place on the occasion of our uncoveringsome track for paving purposes. The first bonds taken offrevealed a mass of verdigris or oxide, which it was hard torealize could have collected in so short a time. Furtherresearch developed no improvement in the condition of the. UNIJEK TUK KISn IIONI) ON KAIL. bonds elsewhere and it was determined that a change toanother bond or to some other method of taking back thereturn current was decidetlly necessary. To lin<l a better bond was by no means an easy one we had been using was selected after careful inspec-tion of the various devices on the market, had been approvedby the superintendent and engineer of the water depart- (^fifwd^f^ajya^ meat as proof against the proiluctions of electrolysis in thewater pipes and was supposed to he in all respects a superiorarticle. The use of supplementary under ground wires, myown previous experience had proven to be a wasteful throw-ing away of good copper from the fact that the life of suchwires was limited to a very few years. Our first step in a new direction was to improve the bondwe were using, an attempt which was only successful to alimited extent; our next was the trial and speedy adoptionof an entirely new departu
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
