. The Street railway journal . kets is often most conven-ient, and they have proved most popular with line contractors andconstructors. We show herewith a convenient bracket of this kindwhich is manufacturedunder the patents ofthe Burnham & DugganRailway ApplianceCompany, of Boston,Mass. The brackets aremade of first class material, are strong,neat in appearance, perfectly adjust-able, and, it is claimed, fully meet therequirements of the electric street railways. It can be readily seen that theDuggan brackets can be placed onpoles that are crooked or out of plumb,and when required the trolley
. The Street railway journal . kets is often most conven-ient, and they have proved most popular with line contractors andconstructors. We show herewith a convenient bracket of this kindwhich is manufacturedunder the patents ofthe Burnham & DugganRailway ApplianceCompany, of Boston,Mass. The brackets aremade of first class material, are strong,neat in appearance, perfectly adjust-able, and, it is claimed, fully meet therequirements of the electric street railways. It can be readily seen that theDuggan brackets can be placed onpoles that are crooked or out of plumb,and when required the trolley can bequickly and accurately adjusted to itsproper position. All of this can be accomplished without disturbingthe pole or the fastenings of the bracket to the pole. Duggan brackets are extensively used on the principal railways ofthis country, and in some cases have been substituted for rigid brackets,where experience has shown that adjustable brackets are not only nec-essary in use but economical in maintenance of AN ADJUSTABLETROLLEY BRACKET. The Railway Ammonia Motor. Our readers will remember that some months ago we published anengraving and description of an ammonia motor that was operated onthe 28th Street line, New York City. The motor, as its name implies,was operated by ammoniacal gas, which was used to work a smallengine placed under the car. The motor was withdrawn from service absorbed, water being able to absorb 727 times its volume of ammoniagas. The union of these elements also increases the temperature ofthe water, and consequently the pressure. Anhydrous ammonia is a cheap product, and is obtained by distil-ling aqua ammonia. One cents worth of coal is sufficient to producesix gallons of ammonia, or all that is required, it is said, to operate acar for two miles. As none of the ammonia is allowed to escape, butall is absorbed by the water in the outer tank of the motor car, thematerial can be used over again practically indefinitely, the only pro-cess
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
