. American engineer and railroad journal . ® ^ T~ W: > ft—71 -* i-j—j+i £ — -js jM: *-- 11H- 5^ . SO J i i- ■ ■—^4jj i ■ (u, i [«8K-•-. —I DETAILS OF SPRING SEAT. Mr. Symons has also brought out another design, in whichthe spring seat is cast integral with the side frame, thus elimi-nating the keys and reducing the weight. Openings for the springplank angles are cored out below the spring seat, and eachangle is riveted at each end of the. side frame by three rivets,60 placed that they may be removed from either the outside orthe bottom of the truck. The truck bolster is of cast steel, with
. American engineer and railroad journal . ® ^ T~ W: > ft—71 -* i-j—j+i £ — -js jM: *-- 11H- 5^ . SO J i i- ■ ■—^4jj i ■ (u, i [«8K-•-. —I DETAILS OF SPRING SEAT. Mr. Symons has also brought out another design, in whichthe spring seat is cast integral with the side frame, thus elimi-nating the keys and reducing the weight. Openings for the springplank angles are cored out below the spring seat, and eachangle is riveted at each end of the. side frame by three rivets,60 placed that they may be removed from either the outside orthe bottom of the truck. The truck bolster is of cast steel, with the center plates andside bearings cast integral with it. Reference to the drawingwill show that the center plate is placed the reverse of thatordinarily used. The truck of this design, for use under 50-toncars, will weigh approximately 1,690 lbs., including the bolster,which weighs 550 lbs. These trucks have been patented byMr. Symons and will be manufactured by the Pioneer CastSteel Truck Company of Chicago
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
