. American engineer and railroad journal . dius bar. The plate is set in a recess in these castingsand secured to each by six i^j-in. bolts From the guide yoke are also carried the outer bearing of thelink shaft and the bearings for the lift shaft, these being sepa-rate castings ot steel, which were specially designed to combinethe maximum rigidity with minimum weight. They are carriedon the back of the cross plate by four ij/jj-in. bolts. Each hasa lip over the top of the plate and a bearing for the full depthof 12 in. Frames.—One casting, 35 ft. &/$ in. long, forms each of theframes. The mai
. American engineer and railroad journal . dius bar. The plate is set in a recess in these castingsand secured to each by six i^j-in. bolts From the guide yoke are also carried the outer bearing of thelink shaft and the bearings for the lift shaft, these being sepa-rate castings ot steel, which were specially designed to combinethe maximum rigidity with minimum weight. They are carriedon the back of the cross plate by four ij/jj-in. bolts. Each hasa lip over the top of the plate and a bearing for the full depthof 12 in. Frames.—One casting, 35 ft. &/$ in. long, forms each of theframes. The main section is 5 in. thick and has a depth of 6yiin. at the pedestal. The forward section passing below the cylin-ders, however, is but 3J/2 in. wide, the inside edge being in align-ment with the main frame. The section below the cylinders is12 in. in depth at the narrowest point. The pedestal binders areof the clip type, being held by two V/t,-m. bolts at either design throughout is simple and straightforward, requiring nifiV. CAST STEEL CARRIERS FOR THE GUIDES. VALVE ROD EXTENSION. cross plate are secured large cast steel carriers for the guides,the details of which are shown in one of the drawings. Theseare of I-beam section throughout and include brackets for carry-ing the guides, the upper one being nearly 2 ft. in length andcarrying the guide by three i}4-in. bolts. These yokes weremost carefully designed to obtain the required strength and comparatively few departures from straight line work on theslotter. Bumper Beam.—Three steel castings with a 15-in. channel formthe bumper beam and center pin bearing. The casting betweenthe frames, which forms the guide for the truck pin, is similarto that which was commonly used when cast iron was the only November, 1909. AMERICAN ENGINEER AND RAILROAD JOURNAL •131 material available. It is deeply ribbed and securely fastenedbetween the frames, but has no connection to the cylinder cast-ing. In addition to this there are
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
