. The railroad and engineering journal . d angle-bars. Each groupof two legs carries a girder which unites them by meansof bolts, and these girders in their turn carry the uprightframes to which are fixed the guides. These upright framesare joined at the top by the steam cylinder ; the girders 64 THE RAILROAD AND [February, 1889. are joined together by heavy wrought-iron plates, some-what like the Creusot hammer. The diameter of the sieam cylinder is meters, andthe maximum stroke of the hammer meters. Thepiston-rod is of steel, and its diameter is rod is attached to
. The railroad and engineering journal . d angle-bars. Each groupof two legs carries a girder which unites them by meansof bolts, and these girders in their turn carry the uprightframes to which are fixed the guides. These upright framesare joined at the top by the steam cylinder ; the girders 64 THE RAILROAD AND [February, 1889. are joined together by heavy wrought-iron plates, some-what like the Creusot hammer. The diameter of the sieam cylinder is meters, andthe maximum stroke of the hammer meters. Thepiston-rod is of steel, and its diameter is rod is attached to the piston by a nut. This hammer, being intended to forge very heavy pieces, surfaces, and is so easily moved that the safety levers,placed above the sides and worked by a lug placed on thehammer in order to prevent accidents, should the latter belifted too high, is really almost unnecessary. The hammer is intended to forge steel. The guides areof wrought iron, and are bolted to heavy plates of to the upright frames. F, BEMENT, MILES & COMPANYS 2,700-KILO. HAMMER. is not automatic, but is worked by hand by ihe hammer-man, who is placed on the level of the ground and betweenthe two legs, and has near him a lever moving the valveadmitting sleam to the chest, as well as the lever com-manding the distributing valve. This valve is (lat and isperfectly balanced ; it works vertically between two rigid The plates of the frames are 28 mm. thick, those of thegirders 21 mm., and those of the upper frame 15 the joints of the plates are planed, in order to obtain aperfect tit. The rivet-holes, the diameter of which is 30mm., are countersunk and the rivet-head is joined to thebody with a fillet of 5 mm. radius. The legs rise two by Vol. LXIII, No. 2.] ENGINEERING JOURNAL. two on a huge mass of cast iron, which in its turn is bolteddown to a heavy masonry foundation. These two cast-iron blocks are joined together by two bolts meterdiameter placed on each side of
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
