Патент USA US3044718код для вставки
United States Patent O??ce 3,044,708 Patented July 17, 1962 1 2 3,044,768 the opposite direction and a wide variety of patterns may be followed for installing the anchors along the rail. By way of background, it may 'be noted that the rail RAIL ANCHOR Arthur I. Appleton, 1713 Wellington Ave., N orthbr'ook, Ill. Filed Sept. 8, 1961, Ser. No. 140,969 2 Claims. (Cl. 238—317) The present invention relates to rail holding appliances 11 is or“ conventional form comprising a head 12, a web 13, and a ?ange or base 14. The rail is mounted on a tie plate 16 which in turn is mounted‘ on a conventional wooden cross tie 17. In this case the tie plate 16 has a cambered seat 1? which carries the rail base 14, the seat being situated between laterally spaced upstanding ribs longitudinal displacement of railroad rails under traffic. 10 20. Immediately adjacent the seat '19, the tie plate 16 is provided with the usual four substantially ‘square holes 21 The tendency of railroad rails to move longitudinally for receiving hold down spikes‘ 22 which engage the rail or “creep” ahead of a train in the same direction the base. The plate may also have additional holes 23 for train is travelling has long been known. Heretofore, spiking it directly into the tie 17 and independent of the this problem has been approached by the use of rail an chors which grip =or clamp the rail relative to the ties to 15 rail hold-down spikes 22. While four vspike holes 21 are customarily provided adjacent the rail, it is common prac prevent such displacement. The necessity for gripping the and more speci?cally to a novel rail anchor for preventing rail at all times including periods of rest and periods of trailic has introduced complexity and expense in construc tion of conventional rail anchors. One object of the present invention is to provide a tice to use only two spikes,'one on each side of the rail base. This leaves two spike holes 21 normally vacant. In conformity with the objects set forth herein each rail anchor is of simple rugged construction and comprises novel rail anchor capable of opposing longitudinal rail two pieces, namely,‘ an anchor member 25 and a wedge displacement or creepage, which is quick and easy to in member 26. Each vanchor is designed to operate by tak stall, is exceptionally reliable when placed in service, and ing advantage of structural features already present in the rail 11 and tie plate 16. When the anchor member 25 is which does not depend upon direct engagement with an edge of a tie. More speci?cally, it is an object to provide 25 engaged with the rail and tie plate, the wedge member 26 is driven between the anchor member and the rail base 14 a rail anchor which takes full advantage of existing rail to effect ‘a positive gripping action therebetween. Each bases and tie plates and spikes to e?ect its intended pur anchor opposes longitudinal creepage in one direction and pose with the result that the tie damage and wear caused in practice it is desirable to install at least one pair of by a direct engagement with the tie is eliminated. A further object is to provide a rail anchor of the fore 30 anchors on a rail. The anchors are so oriented that one will be disposed to oppose creepage in one direction while going type which is of simple, economical and rugged the other will be disposed to oppose creepage in the other construction, is susceptible of installation by unskilled labor, and is positive and secure in its anchoring function. direction. In order to positively clamp together the rail and tie A related object of the present invention is to provide a rail anchor which may be formed of a metal providing 35 plate, each anchor member comprises a heavy casting having portions for gripping the rail and for engaging the suf?cient resiliency during installation and use as to pre tie plate in a vacant hole therein. To this end, the clude breakage when being installed and when in use. ‘anchor memberycomprises a leg 28 extending generally A further object of the present invention is to provide a horizontally beneath the rail parallel to an ‘adjacent tie.’ rail anchor of the foregoing character which positively ties together the rail and underlying tie plate and thereby 40 This portion is provided with an upwardly extending end lug 29 for engaging one lateral edge of the rail base 14. For effecting gripping engagement between the rail pending upon direct engagement of the tie for its anchoring ties the rail to the tie on which it is spiked without de anchor 10 and the rail base 14, the anchor member 25 is provided with a second portion 30 which is substantially the following description proceeds taken in connection 45 U-shaped and extends generally horizon-tally so as to action. ‘ Other objects and advantages will become apparent as with the accompanying drawings wherein: overlie the rail base. This laterally extending U-shaped FIGURE 1 is a fragmentary plan view showing a rail anchor embodying the invention installed on a railroad portion is of su?icient depth to cover the width of the rail ‘base 14 but terminates somewhat short of the rail web 13. The second portion is connected to the ?rst rail. . FIG. 2 is an enlarged vertical section taken substantially 50 portion underlying the rail base along side of the tie by in the plane of line 2-2 of FIG. 1; means of a vertical reverse bend section 31 (FIG. 2). FIG. 3 is a sectional view taken substantially in the As shown in the drawing, the horizontal portion 28 does plane of line 3—3 of FIG. 1 and showing the tie and tie not contact the base of the rail near where this leg 28 plate in vertical section and the rail and rail anchor in and the vertical reverse bend section 31 meet. As a elevation. 55 result, the rail edge is engaged by the reverse bend sec While the invention is susceptible of various modi?ca tion 31 alone so that the rail base is gripped between the lug 29 and the reverse bend section 31. It is clear tions and alternative constructions, 1a certain illustrative rail anchor has been shown in the drawing and will be that the space between rail base 14 and the leg 28 allows described below in considerable detail. It should be un the edge of the base. 14 to positively bite into the anchor derstood, however, that there is no intention to limit the 60 member generally where the leg 28 and reverse bend portion 31 join. ‘ invention to the speci?c form disclosed. On the contrary, the intention is to cover all modi?cations, alternative con Means are provided for receiving and guiding the Wedge structions, equivalents, and uses falling within the spirit member and for preventing the U-shaped portion 30 over and scope of the invention as expressed in the appended lying the rail base from slipping off of the wedge when claims. 65 the latter is driven between the anchor member andjthe Referring more speci?cally to the drawings, the inven rail. One illustrative means comprises wedge receiving tion is there exempli?ed in an illustrative r-ail anchor 10 channels 32 de?ned by a pair of downwardly extending adapted to engage a rail 11 and oppose longitudinal creep spaced lugs 34 on the undersurface of each leg of the age of the same. Although only one anchor 11;‘ has been vU-shaped portion 30. . shown for preventing 'creepage in one direction ‘of train 70 For the purpose of engaging the tie plate 16, there movement, it will be appreciated that an oppositely dis is provided on the anchor member a downwardly extend~ posed ‘anchor ‘can be provided for opposing creepage in’ ing leg 36 integral with the U-shaped portion overlying‘ 3,044,708 3 the rail base on the end thereof opposite from the leg 28 underlying the rail. The tie plate engaging the leg 36 extends into one of the vacant spike holes 21 in the tie plate so that when the anchor member is clamped to the rail the tie plate is positively engaged and thereby coupled to the rail. The leg 36 is desirably long enough to extend through the tie plate and dig into the surface of the rail 17 so as to insure a complete engagement with the tie plate. Turning now to the wedge member 26, it will be noted that it comprises a shank 38 which is relatively long compared to the width of the channel 32 in the anchor member 10 and is formed with an inclined ramp 39 at one end and a large ?at head 40 at its opposite end. The upper surface 41 of the shank is tapered upwardly from A. on maintaining good contact with an edge of the tie. Accordingly, the condition of the tie is not a factor in ob taining a secure anchor against rail creepage. While the anchor is extremely effective in the direction in which the wedge is driven, it will be appreciated that because the rail and the tie plate are clamped together and the tie plate is spiked to the tie, the anchor will also be effective in the opposite direction, particularly so when the rib on the anchor member and the cooperating gashes in the wedge member are employed. The anchor member is formed, for example, as a steel forging and thus has some degree of resiliency. This allows the wedge member to be driven tightly between the anchor member and the rail without danger of break ing the anchor, and adds considerable strength and tough the ramp 39 towards the head 40‘ but at an angle which ness to the assembly. is somewhat less than the taper of the ramp. The bot tom surface 42 of the wedge member in this instance is generally ?at in a lateral direction but is relieved in a abandoned. longitudinal direction so as to de?ne a slight clearance with the upper surface of the rail base between the ends of the wedge member. This clearance is greatest immediately adjacent the head 40, the underside of the wedge member thence tapering perceptibly downwardly to de?ne an acute angle with the outer face of the head 40. This angle in turn de?nes a sharp biting edge 44 along the bottom of the head which is sharp enough to bite into the upper surface of the rail base as the Wedge member is driven up tight under the middle U-shaped portion 30 of the anchor member 25. To further preclude retrograde movement of the wedge member after the same has been driven up tight between the rail base and the anchor member, a detent means can be interposed between the wedge 26 and the anchor member 25. In the present instance one such means This application is a continuation-in-part of copending application Serial No. 733,371, ?led May 6, 1958, now I claim as my invention: 1. In a rail anchor for preventing longitudinal creepage of a railroad rail mounted on a tie with a tie plate having spike holes therein interposed between the rail base and the tie and spiked to the latter, the combination, with an anchor member having a substantially straight horizontal leg extending under the rail parallel to the tie and termi nating at one end in an upwardly extending end lug en gaging the rail base at a point remote from the tie, a generally horizontal U-shaped portion connected to said straight leg at the end opposite from said lug by a vertical reverse bend portion and overlying the rail base and the tie plate, and a vertical portion extending downwardly from said U-shaped portion into an open spike hole in the tie plate, said U-shaped portion having a plurality of spaced lugs depending therefrom de?ning a channel ex tending generally perpendicular to said straight hori comprise a rib 46 extending along the underside of the anchor member in the channel 32 de?ned by the down zontal leg and having a downwardly extending rib in said wardly projecting lugs 34. Cooperating with this rib 46 channel, of a wedge member driven between the rail base are a plurality of transverse grooves or gashes 47 situated and the overlying U-shaped portion within said channel, in longitudinally spaced relation on the inclined upper 40 said wedge member having an enlarged driving head pro vided with a depending sharp angular edge thereon biting surface 41 of the wedge member 26. into the upper surface of the rail base, and said wedge Installation of the rail anchor 10 may be effected by member having an upper surface formed with a plurality positioning the anchor member 25 with its longitudinally of transverse notches therein, one of which is engaged extending horizontal leg portion 28 underneath the rail with said rib when said wedge member is driven between parallel to but spaced from a tie and with the downwardly said U-shaped portion and the rail base to clamp said extending leg 36 in a vacant spike hole 21 in an adjacent anchor member securely thereto and in engagement with tie plate 16 so that the intermediate 'U-shaped member the tie plate, said vertical reverse bend portion and said 30 with the wedge channels 32 overlies the rail base 14. horizontal portion being constructed and arranged so that The wedge member 26 is then driven between the anchor member 25 and the rail base 14 by inserting it in the ' said horizontal leg does not contact the rail base near the end joined to said reverse bend portion, said rail base ‘ channel 32 in which it is guided. As the wedge member being tightly gripped between said reverse bend portion is driven between the rail and the anchor member, an and said end lug upon the wedge member being driven increasing clamping pressure is applied to the upper sur between the U-shaped portion and the rail base so that face of the rail base. By the same token, the sharp angular edge at the head of the wedge member is pressed harder ‘against the rail base and bites into the surface thereof. Also because of the space between the lower surface of the rail base and the horizontal portion 36 of the rail anchor 25, a bending moment is applied to the rail base upon the wedge member 26 being driven into place and the rail base edge biting into the vertical reverse bend portion 31. Under these condi tions, longitudinal creepage of the rail in the same direc tion as the wedge member has been driven will be effec tively opposed as a result of the biting engagement be tween the sharp edge of the wedge and the upper surface of the rail and the positive engagement of the anchor member with the tie plate on which the rail is mounted, the rail is restrained against longitudinal creepage. 2. In a rail anchor for preventing longitudinal creepage of a railroad rail mounted on a tie with a tie plate having spike holes therein interposed between the rail base and the tie and spiked to the latter, the combination, with an anchor member having a substantially straight horizontal leg extending under the rail parallel to the tie and termi nating at one end in an upwardly extending end lug en gaging the rail base at a point remote from the tie, a generally horizontal U-shaped portion connected to said straight leg at the end opposite from said lug by a vertical reverse bend portion and overlying the rail base and the tie plate, and a vertical portion extending downwardly from said U-shaped portion into an open spike hole in the tie plate, said U-shaped portion having a plurality of the spikes holding the tie plate tight against the tie. The wedge member is inserted in the direction of creepage and 70 spaced lugs depending therefrom de?ning a channel ex tending generally perpendicular to said straight horizontal generally under the anchor member from the side thereof leg and having a downwardly extending rib in said chan~ connected to the horizontal leg extending under the rail nel, of a wedge member driven between the rail base and base. This leg being spaced from contact with the tie the overlying U-shaped portion within said channel, said (FIG. 3), the tie will not be damaged by contact with the anchor and the strength of the anchor is not dependent‘ 75 wedge member having an enlarged driving head provided 3,044,708 with a depending sharp angular edge thereon biting into ' 6 zontal portion being constructed and arranged so that said the upper surface of the rail base, and said wedge member horizontal leg does not contact the rail base near the end having an upper surface formed with a plurality of trans joined to said reverse bend portion, said rail base edge verse notches therein, one of which is engaged with said positively biting into ‘said reverse bend portion upon the rib when said wedge member is driven between said 5 wedge member being driven between the U-shaped por U-shaped portion and the rail base to clamp said anchor tion and the rail base so that the rail is restrained against longitudinal creepage. member securely thereto and in engagement with the tie 'plate, said vertical reverse bend portion and said hori No references cited.