US2284643A - Rail fastening - Google Patents

Description

June 2, 19.42. v J, DOYLE 2,284,643

RAIL FASTENING Filed April 15, 1940 INVENTOR. Jbmv 7: 00w. .6-

Patented June 2, 1942 RAIL FASTENING John '1. Doyle, Dwyer, Wy0., assignor of twofifths to Edward W. Heintzelman, Dwyer, Wyo.

Application April 15, 1940, Serial No. 329,713

Claims.

This invention relates to rail iastenings, and more particularly relates to rail fastenings designed to prevent creeping of rails in a lengthwise direction along the ties on which they are supported.

It is an object of the pr sent invention to provide a simple, durable and emcient rail fastening which will prevent movement of rails in a lengthwise direction relative to the ties on which they are supported.

Another object of the invention is the provision of a lock for spikes driven into the ties as rail fastenings, whereby to prevent unintended displacement of such spikes.

Still another object is the provision of a novel clip for use in rail fastenings, which is designed to maintain a \vedging action against a rail with which it is associated at all times during its use.

A still further object of the invention is the provision of a novel tie plate design adapted for use with the fastenings of the present invention and which also may be used as a standard tie plate without such fastenings.

Other objects reside in novel details of con struction and novel combinations and arrangements of parts, all of which will appear more fully in the course of the following description.

To afford a better understanding of the invention, reference is made to the accompanying drawing in the several views of which like parts have been designated similarly and in which:

Figure 1 is a top plan view of a fragment of a rail held in place by the fastenings of the present invention;

Figure 2 is a section taken along the line 2--2 of Figure 1;

Figure 3 is a perspective view drawn to an enlarged scale of the clip illustrated in Figures 1 and 2; and

Figure 4 is a top plan view drawn to a reduced scale of a modified type of tie plate design embodying the features of the present invention.

Referring first to Figure 1, a rail 6 of conventional design is mounted upon the seat 1 of a tie plate 8.

In the form of the invention illustrated in Figure l, the tie plate 8 is punched at 9 for the reception of spikes Ill, while a recess I2 is also provided at one side of seat 1 to admit a clip I3, the details of which will be described hereinafter. On the side of the recess l2 opposite seat I, the plate is punched for the reception of a spike, as indicated at 9a, and preferably the aperture 9a is of a restricted size with respect to the dimension of the spike so that when the spike is driven into the opening, it will exert a wedging action upon clip !3, forcing it in the direction of the rail 6.

As best shown in Figure 3, the clip at one side has upper and lower flanges Ito and I3!) respectively, which are positioned to provide a friction fit with the base 6a of the rail 6. The surface [3c of the clip between the jaw members is serrated and bowed. To insure against accidental deformation, the clip 53 preferably is formed of a metal possessing a greater degree of hardness than the rails with which it is associated, such as manganese steels, molybdenum steels, nickel alloy steels and the like.

In assembling the structure illustrated in Figure 1, the tie plate is located on a tie (not shown) in the usual manner, the rail seated on the tie plate in the recessed portion 1 provided therefor, and spikes H] are driven through recesses 9 into the tie until they overhang and bear against the base 6a of rail 6. The clip [3 is slipped into the recess l2 with its jaw or flanged portion I3a overhanging the rail base 6a, while the other jaw or flanged portion I31) fits underneath the rail base 6a in the extended portion of recess l2.

In order to insure positive action at all times and prevent accidental displacement of clip l3, a spike is driven through recess 9a adjoining recess l2. As accidental displacement of this spike might result in loss of the clip l3 or at least a functional failure, provision is made for holding such spike against any unauthorized displacement. To this end, a metallic clip [4 comprising a flanged base and an upright body portion, as indicated by the dotted line position in Figure 2, is inserted through the recess 9a at the back of spike H], wth the flanged portion resting on the tie (not shown) and bearing against base of plate 8.

The spike is then driven from the dotted line position of Figure 2 until its head bears against the top of clip l3, as indicated in the full line view, whereupon the upstanding portion of clip I4 is bent until it bears against the head of spike Ill."

The resulting Z-shaped structural member serves to prevent lateral or lengthwise displacement of the spike within recess 9a and the aforementioned wedging action produced by the driving of the spike serves to drive the serrated face I30 of clip l3 into the softer surface of the rail base 6a.

As a result, the clip l3 at all times holds the rail 6 against lengthwise movement in either direction along the seat I of tie plate 8.

To prevent any accidental deformation of the tie plate surfaces, the apertures 9 and 2a preferably are located in staggered relation, as shown in Figure 1, although, if desired, it is apparent that the apertures on opposite sides of the plate may be in transverse alinement.

In Figure 4, a modified form of tie plate construction has been shown in which the recess 9a and associated clip l3 are located on opposite sides of rail 6. In this form of design, the fastening arrangement is the same as that previously described and because of the reduced scale of the drawing, the clips M have not been shown and the clip I3 is partially broken to illustrate the relation of the serrated face 130 relative to rail base to.

The spike-retaining clip M previously described, in addition to its function in preventing unauthorized removal of clip l3 through displacement of spike I0, is of general application in rail fastenings wherever spikes are used as retaining members. To illustrate this feature of the construction, such a clip I4 is illustrated as applied to the spike I t in the upper left hand portion of the tie plate illustrated in Figure 1.

From the foregoing, it will be apparent that the clip i3 is at all times held in engagement with the rail base 611 and the spike I fitted in the recess 9a adjoining clip l3 holds the clip against vertical or horizontal movement in engagement with rail base 6a and in turn is held by clip it against movement relative to the clip [3.

Thus, any tendency of the rail 6 to move in the lengthwise direction is prevented. In. this connection, the recess I2 is shaped in conformity with the shape of clip l3 and is of such size that little or no rotation of the clip within the recess is permitted. While some allowance must be made for manufacturing tolerances, it is intended that the clip l3 fits in such close proximity to the Walls of the recess portion l2 that no appreciable rotation is permitted, and by reason of the embedment of the serrated surface I30 in the material of rail base Ea, any tendency of the rail 6 to move in either direction along seat 7 is prevented by the wedging influence of clip [3.

Where a greater resistance to lengthwise movement is desired than is provided by the arrangement illustrated in Figure 1, the form of tie plate and fastening illustrated in Figure 4 may be used. With such an arrangement, clips 13 on-opposite sides of the rail 6 are forced into the rail base 6a in the manner hereinbefore described and by acting in opposition, provide a positive lock against any movement of the rail in a lengthwise direction.

In addition, these fastenings insure against any tipping of the rail by the action of the jaws engaging the rail base on its opposed faces and the clip 83 is effectively held against any displacement in a horizontal or vertical direction by the combined action of the recess l2 and the spike and clip assembly Iii-44.

With further reference to the clip I l, it will be understood that it should be formed of a readily bendable material possessing suflicient tensile strength to insure the adequacy of its locking action. Since a variety of materials capable of satisfying these requirements are now known in the art, specific enumeration appears unnecessary.

It wil be apparent from the foregoing description that the production of tie plates embodying the features of the present invention involves no unusual manufacturing problem and inasmuch as such a tie plate without insertion of clip 53 provides a fastening arrangement comparable to the tie plates now in use, such tie plates may be used for ordinary tie plate purposes, with the added benefit that if rail creeping develops subsequent to installation, the clips I3 may be inserted at any time without removal of the rail and tie plate and thus insure against continuation of the creeping action.

Changes and modifications may be availed of Within the spirit and scope of the invention as defined in the hereunto appended claims.

What I claim and desire to secure by Letters Patent is:

1. A rail fastening comprising a tie plate having a recess for a rail base and an arcuate recess adjacent and open to said rail base recess, and having a perforation for a spike adjacent and contiguous to said arcuate recess, a clip corresponding in shape and size to said arcuate recess and fitted thereinto for limited relative horizontal angular movement, said clip having vertical railbase-engaging serrations in curved horizontal formation and having horizontally extending vertically spaced flanges above and below said serrations for engaging the base of the rail, and a spike driven through said perforation in the tie plate in wedging engagement with said clip and forcing the serrations of said clip into contact with the base of a rail on the plate.

2. A rail fastening comprising a tie plate having a recess for a rail base and arcuate recesses adjacent opposite sides of said base recess and open to said rail base recess, and having a perforation for a spike adjacent and contiguous to each of said arcuate recesses, a clip corresponding in shape and size torsaid arcuate recesses and fitted into each for limited relative horizontal angular movement, said clips having vertical railengaging serrations in curved horizontal formation and having flanges above and below said serrations for engaging the base of a rail, and a spike driven through each of said perforations in the tie plate in wedging engagement with said clips and forcing the serrations of said clips into contact with the base of a rail on the plate.

3. A rail fastening comprising a tie plate having a recess for a rail base and an arcuate recess adjacent and open to said rail base recess, and having a perforation for a spike adjacent and contiguous to said arcuate recess, a clip made of harder material than the rail and corresponding in shape to said arcuate recess and fitted thereinto for limited relative horizontal angular movement, said clip having rail-engaging serrations, and a clip-retaining spike driven through said perforation in the tie plate.

4. A rail fastening comprising a tie plate having a recess for a rail base and a substantially semi-circular recess adjacent and open to said rail base recess, and having a perforation for a spike adjacent and contiguous to said semi-circular recess, a clip made of harder material than the rail and corresponding in shape to said semicircular recess and fitted thereinto for limited relative horizontal angular movement, said clip having vertical rail-engaging serrations in curved horizontal formation and having flanges above and below said serrations for engaging the base of a rail, and a clip-retaining spike driven through said perforation in the tie plate.

5 A rail fastening comprising a tie plate having a recess for a rail base and an arcuate recess adjacent and open to said rail base recess, and having a perforation for a spike adjacent and contiguous to said arcuate recess, a clip corresponding in shape and size to said arcuate recess and fitted thereinto for limited relative horizontal angular movement, said clip having rail-baseengaging serrations and having flanges above and below said serrations for engaging the base of the rail, and a clip-retaining spike driven through 5 said perforation in the tie plate.

JOHN T. DOYLE.

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