. The railroad and engineering journal . ny advan-tages which a hammer intended to forge heavy piecesshould have. Fig. 51 is a side elevation ; fig. 52 a frontelevation, and fig. 53 a plan of this hammer. The anvil, which is of unusual weight, 80 tons, has avery wide base. It is made in two parts, held together bymeans of four hoops, put on hot over hubs or lugs cast onthe block. Between the two parts is a round block em-bedded or mortised into each piece one-half of its thickness,which is intended not only to cause the pieces to cometogether properly, but also to prevent any sliding of the 4o
. The railroad and engineering journal . ny advan-tages which a hammer intended to forge heavy piecesshould have. Fig. 51 is a side elevation ; fig. 52 a frontelevation, and fig. 53 a plan of this hammer. The anvil, which is of unusual weight, 80 tons, has avery wide base. It is made in two parts, held together bymeans of four hoops, put on hot over hubs or lugs cast onthe block. Between the two parts is a round block em-bedded or mortised into each piece one-half of its thickness,which is intended not only to cause the pieces to cometogether properly, but also to prevent any sliding of the 4o6 THE RAILROAD AND [September, 1888. upper part upon the lower and to make them, as far aspossible, as solid as if cast in one piece. The upright frames or pillars are of I section, with pro-portions carefully worked out, and present a very great The width of their base is meters and the openheight below the guides meters, so that it will be seenthat the forging will be very accessible and consequentlyeasily handled. SINGLE-ACTING lo-TON HAMMER, COMPAGNIE DE LHORME. resistance to shocks. At the lower end they are dividedinto two parts, leaving between them a clear space of meters in order to permit the proper handling ofthe forging under treatment. The pillars are keyed below to the cast-iron bed-plateson which they rest, and are centered upon those by pinscast in them. They are fixed above to the upper frame ortable by keys made of heavy wooden blocks, which are Vol. LXII, No. ] ENGINEERING JOURNAL. 407 used in order to take up in part the shocks to thehammer. The bed-plates on which the frame rests have a verylarge base, and are joined together inside and outside bysmall iron rings put on hot upon hubs cast on the face ofthe plate. They are set upon a large foundation of masonryand fixed in place by heavy bolts placed at each corner. The distribution of steam is made by a cylindrical bal-anced valve meter in diameter and having
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