. American engineer and railroad journal . 60 interposed between Hi lop surface of the center sills andthe under surface of the upper bolster member. Each side(tearing is a malleable casting riveted to the lower bolster mem-ber, and to prevent distortion of the bolster by side bearingshocks, a 6 x %-in. brace has one end riveted to the bolsterover the side bearing and the other end secured to the topflange of the center Bill. The two truss rods which extend from bolster to bolster, with turnbuckles at the center of car, are 2 ins. in diameter,with ends upset to 2% ins., and at the bolst
. American engineer and railroad journal . 60 interposed between Hi lop surface of the center sills andthe under surface of the upper bolster member. Each side(tearing is a malleable casting riveted to the lower bolster mem-ber, and to prevent distortion of the bolster by side bearingshocks, a 6 x %-in. brace has one end riveted to the bolsterover the side bearing and the other end secured to the topflange of the center Bill. The two truss rods which extend from bolster to bolster, with turnbuckles at the center of car, are 2 ins. in diameter,with ends upset to 2% ins., and at the bolsters each rod ispinned between two heavy forged straps. These snaps areanchored up at their outer ends, the anchors passing throughslots in the large gusset plates above mentioned and fittingtightly against the outer edges of the top bolster bars. Sincethe horizontal component of the stress In the truss rods istransmitted largely to the top flanges of the center sills, theyare latticed together by a double ByStem of 2\/2 x Via. lattice T*. -&& o 0> a - ■< u rfl u <L - a X CQ — Ml / R - 1 ^; O H r\ H ~ ■f. •a (- -a b VI r, - z i- H -I 5 t- K o < t CO o co o - ; m s s 48 AMERICAN ENGINEER AND RAILROAD JOURNAL. bars, thus forming a very stiff column. Truss rod struts ofcast iron bear against two 10-in. I-beam cross ties, as shown;to avoid punching holes in the bottom flanges of the centerand side sills, these cross ties are secured to the center sillsby 9 x y2-m. steel plate brackets, the ends of which are bentup and riveted to the webs of the center sills; similar brackets% in. thick are secured to the webs of the side sills and sup-port the ends of the cross ties. The end sill arrangement has been designed to leave thisfeature of the car as free as possible from connection withparts that would be difficult to remove in case of damage. Itwill be noted that each end sill is made of ^-in. plate, bent toa Z s
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
