US1821807A - Tie plate - Google Patents

Description

Sept. 1, 1931. HUFF- TI'E PLATE Filed Aug. 1, 1930 HA9 ATTORNEY.

Patented Sept. 1, 1931 nnrren; STATES FRED HUFF, or onIcAeo, ILLINOIS PATENT OFFICE TIE PLATE 7 a lication filed August 1, 1930. Serial no. 472,367.

This invention relates to certain novel improvements in tie plates, and has for its principal object the provision of an improved construction of this character which will be I highly eflicient in use and economical in manufacture; I r

' Among the several objects of this invention is the provision ofan improved tie plate for railroad rails and thelike which efiectively prevents longitudinal movement of the rail which is known as creeping. v

" Another obj ect of the invention is the provision of an improved tie plate which efi'ec tively absorbs the side thrust against the rail when a railway vehicle or the like passes thereover and particularly to absorb the side thrust against the rails at curves in the track. A further object of the invention is the provision of an improved tie plate for effectively distributing the side thrust against the spikes retainingthe tie plate in position so that the'entire force of the thrust is not centered against the spikes. I

An additional object of the, invention is the provision of animproved construction :embodying a tie plate which will not creep transversely of the tie. in the direction of the longitudinal extent of the rail. I V r A further object of the invention is the provision of an improved tie plate which is particularly adapted for use on railway curves and which effectively prevents what is known as the spreading of rails.

Other objects will appear hereinafter.

The invention consists in the novel com-' tially on the line 3-3 in Fig. 2;,

7 Fig. 4 is a perspective View of a unit em- 1,2jand 3; and

Fig. 5 is a perspective view of another unit embodied in the invention as depicted in Figs. 1,2 and 3. i

. Referring tothe drawings wherein a preferred form of construction of my invention is depicted, indicated at is a railway-tie transversely of which extends a rail generically indicated at 11. The rail 11, as is well understood in the art, includes the usual base flange portions 12 and 13.

My improved device includes a base plate generically indicated at 14 in which similar holes 15, 16,17 and 18 are provided to receive the stem portions of the spikes 19, it being manifest that the heads of the spikes protrude over the lower edge of the flanges 12 in the manner well understood in the art.

The base 14 includes similar butoppositely disposed shelves 21 and 22 and by referring to Figs. 3 and 5 is may be seen that the spike holes 15 and 16 are provided in the shelf 21 while the spike holes 17 and 18 are provided in the shelf 22.

The inner side ofthe shelf 21 is defined by intersecting edges 23 and 24 which provide a shoulder 25. Similarly, the inner side bodied inthe invention as depicted in Figs.

of the shelf 22 is defined by the intersecting V edges26 and 27 which define a shoulder 28. .It may be seen, therefore, by referring to Fig. 5, that the edges 23 and 26 define a slot or groove 29 in the base 14 and that this slot 29 converges at the shoulders 25 and 28 into .a slot or groove 30 which is defined by the h edges 24 and 27.

My improved tie plate includes a slidable late 31 which in the use of my invention is slidably inserted into operative position through the slot 29. The plate 31 includes an end portion 32 and an end portion 33 between which is defined a transversely extending slot 45 which extends over a base 34:. By referring to Figs. 3 and 4, it may be seen that the inner side of the end portion 32 is defined by intersecting edges 35 and 36 which intersect to define a shoulder 37, and similar edges 38 and 39 which intersect to define a shoulder 40. The edges 36 and 38 intersect to define a recess 41, as best shown in Fig. 3.

The inner side of the end portion 33 is de fined by intersecting edges 42 and 43 which intersect to define shoulder 44.

In the manufacture of my invention I make the base 34 of lesser vertical height than the shelves 21 and 22 so that when the plate 31 is disposed between the shelves 21 and 22 the base of the rail does not rest upon the base 34 of the plate 31.

Preferably cast as an integral part of the plate 31 is a substantially conical pivot 46 which is disposed in the base 34 of the plate 31 opposite the recess 41 and adjacent the end portion 32. As best shown in Fig. 2, when the rail 11 is disposed in the slot the flange portion 12 oi": the rail rests upon the pointed pivot 46 so that the flange 12 is elevated slightly above the flange 13. It is manifest, therefore, that when my improved tie plate is in operative position the base of the flange 12 of the rail rests upon the pivot 46 as a bearingpoint while the flange 13 rests upon the shelves 21 and 22 inwardly of and adjacent the shoulder 44. It will be seen therefore, that the weight of the car or train passing over the rail 11 is directed downwardly through the pivot 46 to bind the plate 31 against the upper surface of the grooves 29 and 30 while permitting the plate 31 a certain amount of lateral movement about the shoulders 25 and 28 as pivots. This improved construction prevents or takes up the longitudinal thrust of the rail and eliminates what is known as creeping. It is apparent, however, as will best be seen by referring to Fig. 3, that when a car or train is passing over the rail 11 the force and weight of the car or train while tending to pivot the plate 31 about either the shoulder 25 or the shoulder 28 as a pivot, depending upon tae direction of travel of the car or train, likewise serves to wedge the rail between the shoulders 37 and 40 and the shoulder 44 which takes up the side thrust against the rail and prevents what is known as spreading since the side thrust is taken away from the spikes 19 and directed against the shoulders 37 and 40 and 44 of the plate 31 which plate floats in the slots 29 and 30.

-Further to prevent creeping I provide diagonally extending ridges 47, 48, 49 and 50 on the bottom of the base 14 1nd these ridges are preferably triangular in shape so as to be wedged into the tielO.

From the foregoing description of my invention it is manifest that I have provided an improved tie plate which while being simple and economical in construction and accomplishing its several other objects pointed out hereinbefore effectively prevents what are known as the creeping and spreading of rails.

\Vhile I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification, without de )arting from the spirit of the invention. I therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the ap- 7 pended claims.

Having thus described my invention what I claim as new and desire to protect by Letters Patent is:

1. In a device of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves, and a second plate slidably inserted in said grooves andadapted for lateral pivotal movement on said shoulders.

22. In a device of the class described, a base. plate having longitudinally extendingintersecting converging grooves formed therein providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves said go shelves having holes provided therein adapted to receive connecting elements for mounting said device in a supporting member, and a second plate slidably inserted in said grooves and adapted'for lateral pivotal move; 9 ment on said shoulders.

3. In a device of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein providing shelves in said base plate and pro-i iding a shoulder in each of said shelves at the point of intersection of said grooves, said shelves having holesprovided therein adapted to receive connecting elements for mounting said device on a supporting member, andtf a second. plate slidably inserted in said grooves and adapted for lateral pivotal movement on said shoulders, said second plate having a transversely extending groove formed therein substantially at rightanglestiv'n to the longitudinal direction of said converging grooves.

4. In aidevice'of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein "1 5 providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves, said shelves having holes provided therein adapted to receive connecting elements for mounting said device on a supporting member, and

a second plate slidably inserted in said grooves an d adapted for lateral pivotal movement on said shoulders, said second plate having a transversely extending groove formed therein substantially at 'rightangles to the longitudinal direction of said converging grooves, said second plate including an end portion having recesses formed therein opening toward said second-named groove and providing shoulders and including another end portion having a shoulder provided therein extending into said groove toward said last-named shoulders.

5. In a device of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves said shelves having holes provided therein adapted to receive connecting elements for mounting said device on a supporting member, and a second plate slidably inserted in said grooves and adapted for lateral pivotal 'movement on said shoulders, said second plate having a transversely extending groove formed therein substantially at rightangles to the longitudinal direction of said converging grooves, said second plate including an end portion having recesses formed therein opening toward sa1d second-named groove and providing shoulders and including another end portion having a shoulder provided therein extending into said groove toward said last-named shoulders, the bottom of said second-named groove being disposedslightly below the upper surfaces of said shelves, and

a substantially conical elevation formed in sa1d second plate extending upwardly from sa1d second named groove and providing a bearing for one flange of a rail base adapted to be disposed thereon.

6. In a device of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves, and a second plate in said grooves and adapted for lateral pivotal movement on said shoulders.

'Z. In a device of the class described, a base plate having longitudinally extending intersecting converging grooves formed therein providing shelves in said base plate and providing a shoulder in each of said shelves at the point of intersection of said grooves, a second plate in said grooves and adapted for lateral pivotal movement on said, shoulders, said second named plate having a transversely extending groove formed therein through which the base flanges of a rail are adapted to extend, said second named plate including end portions at the ends of said last named groove adapted to engage the side edges of said base flanges.

In testimony whereof I affix my signature.

FRED HUFF.

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