. The Street railway journal . inch; and, sixth, the sand which passesthrough a screen of this mesh. As the screening is done with water, all fine material which,if dry, would form dust, is washed away, and the resultingproduct is exceedingly sharp and clean. This sand is brought by scows to Manhattan and, when re-ceived, is usually saturated with water. It is, therefore, es-sential that this sand be dried before being used, and it hasbeen found economical to thoroughly dry not only the sandwhich is used in the sand boxes on the cars but that which isused in the sand cars as well. The sand car
. The Street railway journal . inch; and, sixth, the sand which passesthrough a screen of this mesh. As the screening is done with water, all fine material which,if dry, would form dust, is washed away, and the resultingproduct is exceedingly sharp and clean. This sand is brought by scows to Manhattan and, when re-ceived, is usually saturated with water. It is, therefore, es-sential that this sand be dried before being used, and it hasbeen found economical to thoroughly dry not only the sandwhich is used in the sand boxes on the cars but that which isused in the sand cars as well. The sand cars are arrangedwith a valve controlled by the motorman, as on thepassenger cars, and the sand, being so fine, when dry, willreadily flow through a small aperture, so that a very smallamount is used. For the drying of this sand, a bin fitted with steam pipeswas first tried, but it was found that this was an exceedinglyslow and expensive method of handling the matter. Sand-drying stoves, known as The Clark Perfect Sand-Dryer, DETAILS OF SAND-DRYING APPARATUS, NEW YORK CITY RAILWAY made by the Department of Street Cleaning of the City ofNew York, in the sprinkling of streets with water under pres-sure have demonstrated that this method of overcoming thetrouble in question is feasible. However, the expense to thestreet railway company to clean its rails in this way would beprohibitive. Cars having chilled cast iron wheels are found to be moreaffected by the slippery condition of the rail than are thosewith steel wheels. To guard against accidents and to expedite the starting ofcars, sand boxes, under the control of motorman, are providedon each passenger car. In addition, whenever conditionsrequire it, sand cars are operated which sprinkle a smallamount of sand on one rail only. In some localities in Man-hattan Borough it is necessary to operate sand cars almostcontinuously. It was found that the use or ordinary screened bank sand,especially if too coarse, tended to flatten the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
