. Railway mechanical engineer . the side sills and are rivetedto tile webs of the center sills and the side sills. These members-are reinforced at the top by 3 in. by 2!/2 in. by J4 i- angles,:ind at the bottom by 3 in. by 2)4 in. by S/16 in. angles. Coverplates measuring 8 in. by 3i in. by 6 ft. long, are secured to thelop llange, and pressed steel gussets are used to reinforce thecross bearers at the center sill connection in the deepest partof the tishbelly girder. The floor supports are 4 in., lb. Z-bars connected to theside and center sills by 4 in. by 3 in. by /i in. angles. Thedraft
. Railway mechanical engineer . the side sills and are rivetedto tile webs of the center sills and the side sills. These members-are reinforced at the top by 3 in. by 2!/2 in. by J4 i- angles,:ind at the bottom by 3 in. by 2)4 in. by S/16 in. angles. Coverplates measuring 8 in. by 3i in. by 6 ft. long, are secured to thelop llange, and pressed steel gussets are used to reinforce thecross bearers at the center sill connection in the deepest partof the tishbelly girder. The floor supports are 4 in., lb. Z-bars connected to theside and center sills by 4 in. by 3 in. by /i in. angles. Thedraft arms are pressed steel sections yi in. thick, and are spaced12^ in. between the webs. They form a continuation of thecenter sill, and are riveted to the end sill as shown in the draw-ing. There are two intermediate stringers of 3 in., lb. Z-bars and two center stringers of iyi in. by 3>^ in. yellow intermediate stringers are secured to the crossbearcrs andbolsters, and the center stringers to the center Illinois Central Steel Frame Box Ca a depth at the center of 24 in. These girders are made up ofweb plates 5/16 in. thick, which are riveted to SA in. by SlA 5/16 in. angles at the top and 5 in. by 4 in, by -^ in. anglesat the bottom, A plate 5/16 in. thick and 19 in. wide covers thelop of this girder. The center sills extend beyond the bolstersand are riveted to the draft arms. The side sills extend fromend sill to end sill, and consist of 9 lb. channels. Theend sills are made up of 10 15-lb. channels with the flangesturned outward. Diagonal braces of 4 in. by 2/: in., 8,7 are used at each corner, extending from the bolster nearthe side sill to the draft sill near the end sill, being held in po-sition by S/16 in. gusset plates. The cross bearers are madeof A in. steel pressed in the shape of a pan and are 14j in. The bolsters consists of two pressed steel pans J4 i- thick riv-eted back to back, and to a top and bottom cover
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
