. The Street railway journal . a swing bolster and a cushioned connection with the frameby means of spring-link suspended equalizing bars. These springlinks are supported by the frame near the yokes, relieving thestrain upon the frame and giving a wide suspension to the cen-trally borne load, theoretically and practically the correct methodof equalization. Not only is the load distributed equally uponeach wheel, but a leverage is obtained in favor of the frame againstthe wheels and brakes, preventing tilting or kicking up, no matterhow violent the brakes are set. Another advantage of the cush-
. The Street railway journal . a swing bolster and a cushioned connection with the frameby means of spring-link suspended equalizing bars. These springlinks are supported by the frame near the yokes, relieving thestrain upon the frame and giving a wide suspension to the cen-trally borne load, theoretically and practically the correct methodof equalization. Not only is the load distributed equally uponeach wheel, but a leverage is obtained in favor of the frame againstthe wheels and brakes, preventing tilting or kicking up, no matterhow violent the brakes are set. Another advantage of the cush-ioned side swing is the softness of contact of the wheel flangeswith the rail heads. The equalizers and journal springs are heavydouble coils- and the equalizing bars are 2V2 ins. thick. Fig. 1 shows a truck built for the Twin City Rapid TransitCompany, of Minneapolis, Minn. The brake hangers are of aspecial design of the railway company, having a ball and socketarrangement at both ends of the single bolts to which the brake-. FIG. 3—THE WILKESBARRE & HAZELTON RAILWAYCOMPANYS TRUCK shoe holders are attached. The upright lever is attached directlyto the brake beam, which is unusual in electric practice. Themotor support springs are upon spring posts, the heads of whichbear upon gusset plates secured to the transoms and side and single-corner brackets are also used to connect tran-soms with side frames. The total length of a side frame of thistruck is 10 ft. 7 ins.; width at the center of bar between yokes, 5^2ins.; thickness of bar, 1^4 ins.; thickness of the yoke extensions,iyi ins.; thickness of the pedestals, 4 ins.; length of the axles, 6 ins.; diameter of the axles. 5 ins. and at the gear seat, $y2 ins.;journals, 4*4 ins. x 8 ins. The wheels are 33 ins. diameter aridsteel-tired; the wheel base is 6 ft. 6 ins. Fig. 2 shows a truck of the Schenectady Railway. This truckhas double horizontal brake levers with upright levers held in avertical position whe
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
