. The railroad and engineering journal . e-tween the dies B B and the dies are closed. At the same timethe upsetting dies /are brought forward their full stroke andheld in such position. The first stroke of the large dies Bbreaks down the blank and fairly shapes the upper and lowersection, but leaves ridges along the sides of the axles where theedges of the dies are cut away, as explained above. Next, the 424 THE RAILROAD AND [September, 1890. metal, by means of the dies /—which have the sections i squaredto receive a wrt-nch (or turning—is t;iven a quarter turn to bringthese ridges to the top
. The railroad and engineering journal . e-tween the dies B B and the dies are closed. At the same timethe upsetting dies /are brought forward their full stroke andheld in such position. The first stroke of the large dies Bbreaks down the blank and fairly shapes the upper and lowersection, but leaves ridges along the sides of the axles where theedges of the dies are cut away, as explained above. Next, the 424 THE RAILROAD AND [September, 1890. metal, by means of the dies /—which have the sections i squaredto receive a wrt-nch (or turning—is t;iven a quarter turn to bringthese ridges to the top and bottom. A few more strokes of thedies B\ the axle meantime being rotated between the strokes,finish the work, the entire operation requiring only a veryshort time. MACHINE FOR ; Figs. 8, r), 10, II and 12 show a method and apparatus formaking metallic carwheels, which is covered by patent , issued recently to Samuel H. Ralston and John Their invention consists in producing a car-wheel hav.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
