. The railroad and engineering journal . ar can be taken up. The anvil-block is centered in the frame, and is fastenedby four keys which prevent any rotary movement. This hammer, which is of simple construction, is an tool for forging light pieces. circular base of consideral)le dimension, and carries aseries of bosses provided with holes which permit the pas-sage of spikes or bolts, which tix the base on a bed of tim-bers, which, in its turn, rests on a mass of masonry. The cast-iron frame carries steel guides which direct themotion of the hammer and prevent any rotary movement. V
. The railroad and engineering journal . ar can be taken up. The anvil-block is centered in the frame, and is fastenedby four keys which prevent any rotary movement. This hammer, which is of simple construction, is an tool for forging light pieces. circular base of consideral)le dimension, and carries aseries of bosses provided with holes which permit the pas-sage of spikes or bolts, which tix the base on a bed of tim-bers, which, in its turn, rests on a mass of masonry. The cast-iron frame carries steel guides which direct themotion of the hammer and prevent any rotary movement. Vol. LXIII, No. I.] ENGINEERING JOURNAL. 29 The hammer, the piston-rod, and the piston are of steel,forged in one piece. This hammer is especially intended to draw out ironand steel bars. The distribution of steam is made by a lever; consequently the stroke of the hammer can bevaried according to the thickness of the piece to be reaches the steam-chest through a small valvewhich is worked by the machinist. ft-1- ^ > .<.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
