. American engineer and railroad journal . p to a little morethan 66,000 pounds. Lead or iron ballast will be used to getthe required load of 96,000 pounds. An entirely new departure has been made in the locomotivetruck for the French car. Ease of riding was considered ofthe utmost importance, and it was determined to make itride as smoothly as a carriage should, while at the same timeit possessed all the necessary features of strength, stiffnessand durability. In the production of an easy riding carriagethe initial step was the introduction of journal springs overthe boxes. The first advantag
. American engineer and railroad journal . p to a little morethan 66,000 pounds. Lead or iron ballast will be used to getthe required load of 96,000 pounds. An entirely new departure has been made in the locomotivetruck for the French car. Ease of riding was considered ofthe utmost importance, and it was determined to make itride as smoothly as a carriage should, while at the same timeit possessed all the necessary features of strength, stiffnessand durability. In the production of an easy riding carriagethe initial step was the introduction of journal springs overthe boxes. The first advantage of this is the reduction ofthe weight not carried by springs, which now consists ofwheels, axles and boxes only. The heavy equalizer, instead ofresting directly on the boxes, is carried by the open links, inwhich another set of springs are introduced. The latter havethe same capacity as those on the journal boxes, and have adouble function, cushioning the equalizing movement wherethe wheel rises, and cushioning the swing motion when the. Brill Truck for Electric Passenger Locomotive. trucks are quite as great a departure from the common orderas the scheme for the car itself. One of them is shown in theillustration. The trucks must perform all the essential work of a locomo-tive. Their second function is that of a railway car and the machinery must be carried without shocks ordisturbance, curves must be passed smoothly and withoutdanger, and the load must not exert a destructive action uponthe roadbed. To meet the requirements of the locomotive alone the trucksare built in the most substantial manner. The side frames,which also form the jaws for the journal boxes, are heavyforgings nearly as large as the bars of a locomotive are deeper, but not as thick. The end pieces of theframe are T irons, carried by palms worked upon the sidepieces. The seats in these palms are finished and the holesare reamed for taper bolts. Locomotive practice is followed incons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
