Патент USA US2389123код для вставки
W. 20, 1945.. ca. E. DATH RAILWAY CAR TRUCK Filed April 28, 1944 2,38%,123 Patented Nov. 20, 1945 ‘2,389,123 UNITED STATES PATENT OFFICE 2,389,123 RAILWAY CAR TRUCK George E. Dath, Mokena, Ill., assignor to W. H. Miner, Inc., Chicago, 111., a corporation of Dela ware Application April 28, 1944, Serial No. 533,153 3 Claims. This invention relates to improvements in rail way car trucks. (0]. 105-—197) l3—l3 of the truck side frames at the bolster guides and having guide stems projecting through the vertical sections; compression springs B--B One object of the invention is to provide, in a railway car truck, simple and ei‘?cient means for surrounding the stems of the friction plates; snubbing the action of the truck springs, includ 5 and follower discs C--C anchored to the guide ing spring actuated friction plates carried by the stems and cooperating with the springs. truck bolster ‘slidably engaging vertically dis In carrying out my invention I provide the } posed friction surfaces on the inner sides of the transverse, vertically extending wall of each ver vertically disposed sections which connect the tical, channel-shaped section [3 of each truck top and bottom members of the truck side frame 10 side frame, which wall is indicated by I9, with a and form the usual guide means for the truck lengthwise extending, ?at friction surface 20 on bolster. the inner side thereof, that is, the side opposite Other objects of the invention will more clearly to the side on which the bolster l 4 is guided. appear from the description and claims herein The friction plates A-A are of rectangular after following. 15 shape and two such plates are associated with In the drawing forming a part of this speci each side frame. Each friction plate has a cy ?cation, Figure 1 is a side elevational view of a lindrical guide stem 2| formed integral there portion of the truck side frame of a railway car, with, projecting at right angles therefrom at the illustrating my improvements in connection center of the plate. Each guide stem 2| is therewith. Figure 2 is a horizontal sectional 20 threaded at the free end, as indicated at 22. The view, corresponding substantially to the line 2-2 stem 2| extends through a vertical slot 23 in the of Figure 1. wall l9 and through an opening 24 in the outer In said drawing, l0 indicates one of the side side wall 25 of the bolster I 4. frame members of a railway car truck. The side The compression springs 3-3 are in the form frame In, as shown, is in the form of a casting 25 of helical coils and serve to force the friction and has horizontally disposed top and bottom plates A—-A against the friction surfaces 20 of members H and [2 connected by spaced vertical the truck side frame. The spring B associated sections l3—|3 of channel-shaped cross section. with each friction plate A surrounds the stem 2! As will be understood by those skilled in this thereof and has its opposite ends bearing on the art, the truck includes two side frame members 30 inner side of the corresponding side wall 25 of the Ill-40, a truck bolster I4, and truck springs bolster and the follower disc C, which is shoul l5-—l5 which are supported on the upper side of dered against the nut 26 threaded on the outer the bottom member [2. The opposite ends of end of the stem. the bolster M are guided between ‘the vertical The springs 3-3 are under a predetermined sections |3—i3 and I3-l3 of the truck side 35 compression and react against the side walls of frames. As clearly shown in Figure 1, the sec the bolster to pull the friction plates tightly tions I3-—l3 of each side frame are inwardly off against the interior friction surfaces 20-20 of set at the upper end portions thereof to provide the vertical channel sections l3_l3 of the truck guides I6——|6 which cooperate with guide seats side frame, thereby providing the required resist l1—l'l at opposite sides of the bolster M. The ance to vertical movement of the bolster to snub truck springs are composed of two clusters and the action of the truck springs. in the present disclosure compn'se four springs I have herein shown and described what I now to each cluster, as indicated in the dotted lines consider the preferred manner of carrying out my in Figure 2. The springs at each side of the invention, but the same is merely illustrative and truck are supported on the bottom members 45 I contemplate all changes and modi?cations that |2--l2 of the truck side frames, the usual spring come within the scope of the claims appended follower plates |8—-|8 being disposed at the top and bottom of the spring cluster, the same re hereto. I claim: . spectively abutting thebolster and the bottom 1. In a railway car truck, the combination with member 12. The springs |5—l5 yieldingly sup 50 a truck side frame having vertically disposed, lat port the bolster M which, in turn, supports the erally spaced guide walls; of a truck bolster hav car body by means of the usual body bolster. ing side walls, said bolster being interposed be My improved snubbing means comprises a pair tween said guide walls, with the side walls thereof of friction plates A-—A at each end of the bolster in sliding engagement with the outer faces of said ~ engaging the inner faces of the vertical sections 55 guide walls; truck springs supporting said bolster 2 2,889,123 on the side frame; a friction plate in sliding en gagement with each guide wall and bearing on the inner face thereof; a stem ?xed to said plate and projecting therefrom into the bolster and ex guide wall at the corresponding side of the side frame and the opening in the corresponding bol ster wall; and a spring reacting between the bol ster and the follower plate of each stem to force tending through the corresponding guide wall the plate against the cooperating guide wall of the and the side wall of the bolster; a follower an chored to the outer end of the stem; and a spring side frame. 3. In a railway car truck, the combination with surrounding said stem and bearing at the oppo~ site ends respectively onsaid follower and the in ner side of said side wall of the bolster. a truck side frame having vertically disposed, lat erally spaced guide walls; of a truck bolster hav 10 ing side walls, said bolster being guided between said guide walls with the side walls thereof slid 2. In a railway car truck, the combination with ably engaged with the outer sides of said guide a truck side frame having vertically disposed, walls; a friction plate carried by the bolster and laterally spaced, guide walls provided with verti movable therewith, said plate having a ?xed stem cal guide slots therethrough; of a truck bolster having side walls provided with openings there 16 extending through one of the side walls of the bolster and the corresponding guide wall of the through, said bolster being guided between said side frame, said guide wall being vertically slotted guide walls with the side Walls opposed to the to accommodate the stem for movement in verti outer sides of the guide walls; friction plates slid cal direction; a follower anchored to the stem; ably engaged with the inner sides of said guide walls, each plate having a stem projecting there 20 and a spring carried by the bolster and bearing on said follower to pull said plate against the > from and integral therewith; a follower anchored inner surface of the guide wall. to the outer end of said stem, the stem of each plate extending through the guide opening of the GEORGE E. DATH.