Патент USA US2116463код для вставки
May 3, 1938. E. M. LIVINGSTON 2,116,463 TRACK RAIL JOINT Filed June 18, 1956 2 Sheets-Sheet l INV_EN_TOR. Edmund M. Lwmysian, BY [4T ORNEYS. May 3, 1938. E, M, LIVlNGSTON - TRACK RAIL JOINT ' Filed June 18, 1956 S. @ 2 ‘Sheets-Sheet 2 ‘a $5” @@ _ .I - F162? F17IG 2,116,463 1W-16% 59 59c 47:?“ FIGJZH 5$219d0“ w‘ 217% ‘M W1 TNESSES: . ‘Y ' I, INV_EN_TOR. Edmund MLwznystom gar/1% f l WW A T'ORNEYS. 2,116,463; Patented May 3, 1938 UNITED STATES PATENT OFFICE I 2,116,463 TRACK RAIL JOINT Edmund M. Livingston, Edgewood, Pa. Application June 18, 1936, Serial No. 85,829 8 Claims. (01. 238-244.) This invention relates to track rail joints, that is to say, to means for securing together the con tiguous ends of aligned sections of railroad track rails. In the main, my invention is directed toward 5 the provision-of a rail joint structure wherein the parts are so organized as to not only reinforce the rails against lateral ?exure along the length of the joint, but which will, as well, effectively 10 brace the center webs of the adjoining rail sec tions, and at the same time vertically stiffen said rail sections against vertical ?exure under load,all to the end of rendering the joint substantially rigid and minimizing wear of its component -‘ parts. In connection with a rail joint structure having the above attributes, it is a further aim of my invention to make possible, through wedge‘ action between the component‘ parts, the taking up of Fig. II, these splice bars are of substantially chan nel cross sectional con?guration and character ized by outwardly-bowed ?exible vertical webs I3 that connect top and bottom ?anges I4, I5. At their bottoms, the splice bars I2 are reinforced by outward continuations I5a of. the ?anges I5; and it will be noted that said bars are so proporé" tioned as to ?t, ?anges ?rst, into the side hol lows of the aligned rail sections III at opposite sides of the vertical center webs I6. The top faces of the ?anges I4, it will be further observed from Fig. II, are sloped as at IT to correspond with the slopes I8 of the bottom faces of‘ the rail head I9. Similarly, the bottom faces of the lower ?anges I5 of the splice bars I3 are sloped as at 20 to correspond with the declination 2I of the base ?anges 22 of. the rails I0. ‘ 'My improved joint further comprises wedge‘ bars 23 which correspond in length to the splice bars I2 and which in turn ?t the hollows of said splice bars. The upper and lower edges‘of the periods of. service. Another object of my invention is to provide‘ wedge bars 23 are sloped outwardly contrariwise ‘ wear as it occurs in the joint after extensive rail connecting means wherein the parts are adaptable to the formation of effective joints in instances where the heads of old rails are worn adjacent the ends of adjoining sections or where therail base?anges are worn at the end regions of the joints. _ Still other objects and attendant advantages 30 of this invention will be manifest from the de tailed description following in connection with the attached drawings, wherein Fig. I is a frag mentary‘ view inside elevation showing a four bolt track rail joint embodying my invention. Fig. II is a cross sectional view of the joint, taken as indicated by the arrows 11-11 in Fig. I, and drawnv to a larger scale. Figs. III and IV are perspective views respec tively of. one of the splice bars and one of the 40 wedge bars comprised in my improved joint. Fig. V is a side view of the wedge bar shown in Fig. IV. Figs. VI and ‘VII are views corresponding to Fig. V showing slightly modi?ed forms of wedge ' bars adapted to be used at worn joints; and, Fig. VIII is a side view of a six hole splice bar constructed in accordance with my invention. With detailed reference ?rst more particularly to Figs. I and II of these illustrations, the nu at an acute angle as at 24, 25 to correspond with and engage complementary slopes 26, 21 respeci tively at the bottoms of the top‘ ?anges I4 of the splice bars and the tops of the lower ?anges‘ I5 of said splice bars. The backs of the wedge bars are curved as at 28 and adapted to abut the center web I6 of the rail at opposite sides, the curvature of the wedge bars being somewhat less than. that 30 of the rail sides so as to permit rocking and positional-self adjustment of said wedge bars in respect to the splice bars. As shown in Figs. I and III, the splice bars I2 are in this instance provided with four holes 29 through their bowed 35 webs I3 substantially midway of the height of the latter, while the wedge bars 23 are similarly provided with holes '33 at corresponding intervals as shown in Fig. IV for passage of draw bolts such As shown 40 as indicated at 3| in Figs. I and II. in Fig. III, the holes 29 in the splice bars I2 are made elliptic to receive the correspondingly shaped portions 3Ia of the bolts 3|. The holes 30 in the wedge bars 23, on the other hand. are made circular to conform. with the cross section $5 of the'shanks of the bolts 3|. For a purpose hereinafter explained, the splice bars I2 are longitudinally slit as at 32 between the inner two of the bolt holes 29. ' i I ‘ meral I0 indicates the contiguous ends of two In making up the joint, the splice bars I rail sections which meet at the joint, the split of the joint being indicated at II. The joint organization of my invention, it will be observed, comprises a pair of splice bars I2, I2, which are ' exact duplicates of each other. As shown in and the wedge bars 23 are assembled at oppo site sides of the joint as shown in Fig. II, and 50 the bolts 3| passed through the apertures 29, 30 in the parts I2 and 23, and also through pre allocated registering apertures 33 in thevertical 55 2,116,463 center webs l6 of the rail ends l0. As the nuts 34 associated with the bolts 3| are tightened, it will be evident from Fig. II that, by the action of the wedge bars 23, and pull of the bolts, the splice bars will be drawn inward and their curved webs l3 ?attened. This action is attended by ver tical expansion of the splice bars |2 whereby the sloping surfaces at H and 20 are brought into ?rm contact with the contiguous sloping surfaces 10 l8, 2| of the rail heads and base ?anges, and the surfaces 26, 21 similarly brought into ?rm con tact with the contiguous surfaces 24, 25 of the wedge bars 23, the latter being free to rock on the curved sides of the web l6 of the rail to ac 15 commodate the action. With the parts as sembled and secured as illustrated in Fig. II, the contiguous ends of the rail sections II] are ef fectively braced both against up and down and lateral ?exure, the overhangs of the rail heads l9 being supported along the dotted lines :1:—:v in Fig. II through interposition between said head and the rail base ?anges 22, of the ?anges I4, I 5 of ‘the splice bars |2 and the wedge bars 23. In other’ words, the arrangement in effect provides between the heads I9 of the rail sections H! and the rail base ?anges substantially solid columns of metal which greatly add to the rigidity of the joint as a whole and strengthen it to better with stand‘ the loads of passing trains. At the same time, the wedge bars 23, by abutting the center webs of the rails I0 brace the latter throughout their height and thus stiffen the joint against lateral ?exure. @As'a consequence of being slitted at 32, the splice bars l2 have the capacity to yield more readily to being vertically expanded by the wedge bars 23 incident to drawing up of the bolts 3| as above explained. The slits 32 may however be omitted if desired without impairing the action of the splice bars. In the latter case, however, greater effort will have to be expended in draw ing up on the bolts 3|. ' As wear occurs in the joint, it may be taken up from time to time simply by drawing up tighter on the bolts 3| to bring the wedge surfaces of the several parts into closer contact as required. In order‘to prevent the formation along the wedge surfaces of the parts of shoulders such as would be likely to interfere with the e?iciency of the _ joint, I preferably round the upper and lower ?anges ‘l4, |5 of the splice bars |2 as at 35, 38 and cut back the slopes 21 of the ?anges l5 ad jacent the webs l3 as at 31, 38. :For new rails, I employ in conjunction with 65 the splice bars |2, wedge bars 23 having absolute ly straight and parallel top and bottom edges as shown in Figs. 1, IV and V. ' In ‘the modi?ed wedge bar 2317- delineated in ends 4| 0 as will be seen by comparison with the dot—and-dash horizontal lines shown at 42, 43. Bars of the type 230 are thus useful in instances where the base ?anges of the rail or the splice bars |2 have been worn at the end regions of the joint. When incorporated in the joint, the wedge bars 230 will warp, i. e., adapt the splice bars |2 to the channel con?guration of the rail sections at the worn regions aforesaid. Fig. VIII shows a siX hole splice bar |2d, which, 10 except for having two additional bolt holes and being longer than the splice bar of Fig. III, is identical with the latter, its slit 32d being con tinuous through the four bolt holes 2912 at the center of the bar. Obviously, the wedge bars to be used in association with the splice bar |2d of Fig. VIII are made to a corresponding length and similarly provided with six bolt holes. To those skilled in the art, it will be apparent from the foregoing that I have provided a novel 20 joint organization whereby the ends of the con tiguous rail ‘sections are connected more rigidly and solidlythan is possible with joints of ordi— nary construction. Accordingly through my in vention, the rails are more e?ectively strength 25 ened and brace both against vertical and lateral ?exure with attendant minimization of wear of the parts and assurance of correspondingly greater longevity of the joint. Having thus described my invention, I claim: 30 1. A track! rail joint comprising a pair of vertically-expansible channel section splice bars adapted to engage, ?anges ?rst, into the hollows of the alignedrail sections, the top and bottom ?anges of said bars being tapered for wedging action respectively with the rail heads and base ?anges of said sections and connected by out wardly-bowed-?exible webs; wedge bars with con vexed backs abutting opposite sides of the vertical webs of the rail ends and in turn adapted to 40 engage the hollows of the splice bars, said wedge bars having their top and bottom longitudinal surfaces counter-sloped outwardly for wedging action with the in-sides of the splice bar ?anges; and transverse vbolts operative to draw inward upon the bowed webs of the splice bars. 2. A track rail joint comprising a pair of out wardly-bowed vertically-expansible channel sec tion splice bars adapted to engage, ?anges ?rst, into the hollows of the aligned rail sections at opposite sides of the joint; wedge bars with con vexed backs abutting opposite sides of the con— vexed. vertical webs of the rail sections and adapted in turn to wedgingly ?t the hollows of the splice bars, the backs of said wedge bars hav ing a curvature of a radius less than that of the rail web sides; and transverse bolts operative to draw the splice bars inward to coact with the Fig. VI, the upper edge slopes downward from Wedge bars, said wedging ?t normally opposing the center 39 at a slight angle indicated in each instance at 40 toward the opposite ends 4| of the bar. This modi?ed bar 23b‘ is designed for use with rail sections wherein the bottom faces of the heads have been worn adjacent the split of the juncture. The effect of the bars 23b in an assembled joint will, under the drawing action of the bolts 3|, be to raise the center portions of the top ?anges I4 of the splice bars |2 into con inward movement of the splice bars. 60 3. .A track rail joint comprising a pair of chan nel section vertically~cxpansible splice bars to ?t, ?anges ?rst, into the side hollows of the aligned tact with the worn areas above referred to of 70 the rail heads, so as to effectively brace the rail at such worn regions. The modi?ed form of wedge “bar 230 illustrated in Fig. VII is somewhat arched, that is to say, both its top and bottom edges decline at a slight 75 angle outward from the center 39c toward the rail sections, said bars'having outwardly bowed ?exible webs, the tops of the upper ?anges being sloped to correspond with and to engage the under faces of the rail heads, and the bottoms of the lower ?anges being sloped to correspond with and engage the top faces of the rail base ?anges; wedge bars in turn ?tting the hollows of the 70 splice bars and having convexed backs abutting opposite sides of the vertical webs of the rail sec tions, the top and bottom surfaces of said wedge bars being counter-sloped outwardly to engage complemental slopes respectively on the bottom 75 2,116,463 faces of the upper ?anges of the splice bars, and the top faces of the lower ?anges of said splice bars; and transverse bolts operative to draw inward upon the bowed webs of the splice bars with attendant vertical expansion of the latter by the wedge bars and determination of ?rm wedge contact between the several opposed sloping surfaces aforesaid, whereby the rail ends are rigidly braced both against vertical and lat 10 eral ?exure. 4. In a joint for aligned rail sections wherein the under sides of the rail heads are worn adja cent the split, a pair of vertically-expansible channel section splice bars adapted to engage, 15 ?anges ?rst, within the side hollows of the aligned rail sections, the ?anges of said splice bars being tapered and connected by outwardly-bowed ?ex ible webs; wedge bars with their backs abutting opposite sides of the vertical webs of the aligned track sections and in turn wedgingly ?tting the hollows of the splice bars, said wedge bars hav 3 pered and connected by outwardly-bowed ?exible webs; wedge bars with their backs abutting oppo site sides of the vertical webs of the contiguous rail sections and in turn adapted to wedgingly fit within the hollows of the splice bars, said wedge bars being arched lengthwise and having their upper and lower longitudinal surfaces sloped outward contrariwise; and transverse bolts oper ative to draw inward upon the bowed webs of the splice bars with attendant warping of the 10 latter by the wedge bars so that the upper ?anges of said splice bars are brought into ?rm contact with the unclersides of the rail heads and their bottom ?anges into ?rm contact with the rail base ?anges along the length of the joint. 15 6. A track rail joint comprising a pair of out wardly-bowed vertically-expansible channel sec tion splice bars adapted to engage, ?anges ?rst, into the side hollows of the aligned rail sections, said bars having their top and bottom ?anges sloped exteriorly for wedging action respectively ing their upper and lower surfaces sloped out . with the heads and the base ?anges of the rail ward contrariwise and their upper edges addi sections; wedge bars with convexed backs abut tionally sloped from the center toward opposite ting opposite sides of the vertical webs of the rail 25 ends of said bars; and transverse bolts operative sections and having their top and bottom sur 25 to draw inward upon the bowed webs of the splice faces oppositely sloped for wedging action with bars with attendant warping of the latter by the the corresponding inner surfaces of the top and wedge bars so that their upper flanges are brought bottom ?anges of the splice bars; and means into ?rm contact with the undersides of the rail operative to urge the splice bars inward for coac~ 30 heads, and their bottom ?anges into ?rm contact tion with the wedge bars and the rail sections. 30 with the rail base ?anges along the length of the 7. A track rail joint according to claim 1, joint. wherein the webs of the splice bars are longitu 5. In a railroad track joint wherein the top dinally slitted part way of their lengths between faces of the base ?anges of the aligned rail sec bolts. 8. A track rail joint according to claim 3, 35 35 tions are worn at the end regions of the joint, a pair of vertically-expansible channel section wherein the webs of the splice bars are longitu splice bars adapted to engage, ?anges ?rst, into dinally slitted part way of their lengths between the hollows of the rail sections at opposite sides bolts. of the joint, the ?anges of said bars being ta EDMUND M. LIVINGSTON.