US922653A - Rail-chair. - Google Patents

Description

J. C. WISE.

RAIL CHAIR. APPLICATION FILED MAR 31, 1908.

Patented May 25, 1909.

2 SHEETS-SHEET 1.

Inventor:

J. C. WISE.

RAIL GHAIR. APPLICATION FILED MAI-1.31, 1908.

922,653 Patented May 25, 1909.

2 SHEETS-SHEET 2.

Specification of Letters Patent.

RAIL-CHAIR.

Patented May 25, 1909.

Application filed March 81, 1908. Serial No. 424,354.

To all whom it may concern:

Be it known that I, JENNINGS C. Wrsn, a citizen of the United States, residing at Charlottesville, in the county of Albeniarle,

and State of Virginia, have invented. certain new and useful Improvements in Rail- Chairs, of which the following is a specification.

My invention relates to rail chairs and its novelty consists in the construction and adaptation of the parts as will be more fully hereinafter pointed out.

The object of my invention is to provide 3 means adapted to prevent thespreading and turning of railroad rails spiked to the ties.

Sometimes plates are spiked to a rail in i such a way as to overlap its flanges, but 111 such case the resistance to the shearing force can only be that due to the cross sectional j When the blow area of the spikes employed. is transmitted to the rail by the flange of the wheel of thecar it acts in two ways upon 1 the common spike and its action 15 mono marked at curved. points on the track than at )laces where the track is straight. The siike on the outside of the. rail tends to shear at the plane of contact between the rail flanges and the spike while the spike on the inside of the rail 1s subjected to a tensile strain in an u ')ward direction. The first kind of strains frequently repeated gradually t'orccthe outer spike away from the rail sidcwise, and the second kind of strain tends to pull the inner spike out of the tie. of these forces tend to free the. rail from the grip of the spike until the. action of the rail upon the spikes, when the former is struck by the wheel flange, is that of a hammer and causes the rail to crush into the tie to rupture its fibers and further weaken the engagement I As the point between the rail and the tie. of contact of the wheel and rail gradually advance, the unloaded portion of the rail has a tendency to spring upward and this action not only causes rmlghness of motion in the car passing over the rail, but also aids in loosening the spikes along the rail, because it creates an upward thrust thereon.

The purpose of my invention is to-obviate in some measure the disadvantages referred to, and this I do by providing the rail chair hereinafter described which is so -..onstructed that the force of the blow ot' the wheel flange against the rail is distributed between the spikes on both sides 01' the rail.

Both

I In the drawings, Figure 1 is a perspective view of a portion of a rail mounted upon a i tie and provided with my improved chair; Fig. 2 is a perspective of the right plate; Fig. 3 is a perspective of the left plate; Fig. 4 is a top plan view of a portion of the rail with the parts of the chair assembled, and Fig. 5 is a bottom plan view of the. arts shown in Fig. el.

In the drawings, represents a portion of a rail, of which 11is a web and 12 and 13 are the flanges.

14 represents a portion of a tie on which l the rail is mounted and to which it is secured.

.l The rail chair comprises two dates. one

of which, tor convenience .l wll call the right" late and the other the "lett plate. The right plate consists of a flat shank or base 21 provided at and 2.; t with apertures to receive thcspikes. l recessed at 24 and 25 to engage with corres )onding portions of the flange oi the left pate and between the recesses is formed a tongue 26 which engages a corresponding recess 34 in the base of the left plate. It is provided with a lip flange 27 which is bent over to engage with the flange 12 ot' the rail. The left plate 30 consists of a flat shank or base 31 provided with apertures 32 and 33 to receive the spikes. It is recessed at 34 to engage with the tongue 26 of the riglu plate 21. It is provided with ,a lip flange 37 which is bent over to engage with the flange 13 of the rail'and is provided with an upwardly projecting substantially vertical supplemen- 'and with a transverse reinforcing rib 36. The spikes 4-0 in the apertures 22 and 32 engage the flanges 12 and 13 of the rail in the usual manner while the spikes 41 in the aperlures 23 and 33 serve to hold the plate shanks 31 and 21 to the tie. l

When the partsaieassembled a portion 28 ot' the lip flange ZTLrests upon the upper surface of the shank 531 of the left plate 30, while the corresponding portion 38 of the lip flange 37 enters the recess 24 of the plate 20 and rests on the tie. When the plates are set in position the right-and leftplates form i in efl'ect a chair for the rail and distribute the I load over a larger area of the tie than would the rail itself. 'lhc crush of the tie by the impact of the car wheel flange is therefore greatly obviated. It will be observed that the shanks ol' the plates interlock horizon- It is tal flange to engage the web 11 of the rail ill) upon the flanges of the rail produce a vertical lock. 'lherefore, there results a'practically perfect vertical and horizontal lock between the parts. When the blow of the wheel flange is transmitted to the head of the 1 rail, supposing the train to be moving away from the observer in the direction of the arrow a in Fig. 1, the rail being the right hand rail, the tendency is to spread the rail l on the direction of the arrow 0, Fig. l, the I overturmng strain tending to tip the head of the rail outward, the result of the lateral strain being to exert a shearing action on the spike 40 on the right and the result of the overturning strain being to cause the outer edge of the flange of the rail to actas a ful- P provided with a reverted flange adapted to 85 crum and the inner edge of the flange of the rail to .end to rise and draw the spike 40 on t the left of Fig. 4, the lateral strain being also resisted by the spike .40 on the right hand j side, directly, and indirectly,

plate by the spike ll on the right. Such strain is further resisted by thespikes 40 and the medium of j displacement transversely of the rail when 41 on the left acting through plate and its lip flange 37.

The overturning strain is resisted by the lip flange 27 of the plate 20 and the spike 40 on the left hand side. The lip flange 27 of the plate 20 is subjected to the overturning strain only, in the tendency of such strain to raise the inner edge of the flange of the rail, the lateral strain having no eflect whatever.

upon it. ()n the other hand the lip flange 37 of the plate 30 has both the overturning and lateral strain exerted upon it, the lateral strain being resisted by the spikes 10 and 41 on the left holding the plate 30 and its lip flange 37, its upright flange at the same time supporting the web 11 of the rail against such overturning strain. Both plates. exert a shearing stress upon their spikes, but in diflerent directions, and since the left plate 30 is bound in place by the load there is no upward thrust on the inner spikes and the force is distributed among the spikes on both sides of the rail. The spikes do substantially-the same work as they do in the ordinary construction employed and the spikes 41 supplement this work eil'ic'iently. It will be noted that the plate 20 is subjected to lifting or overturning strains and that the plate 30 is subjected to both overturning andtensile strains. This enables the two plates, if deemed desirable, to be manufactured 'of different materialsl It will also be noted that each plate is fas-' tened on one side of the rail only and on that side which is opposite its reverted flange adapted to engage the flange of the rail; and furthermore that the horizontal look by which lateral'horizont'al displacementof the plates is adapted to be prevented is beneath through the I when no chair is' i the rail and its elliciency is increased by the weight thereof.

\Vhat l claim as new is:

1. A rail chair comprising two plates each provided with a reverted flange adapted to embrace the rail flange, one of said plates arranged with relation to the rail so asto be subjected to overturning strains and f the other arranged with reference to the rail so as to be subjected to tensile strains, in combination with means integral with each plate adapted to prevent their relative horizontal displacement transversely of the rail when placed adjacent to each other, com rising a tongue on one plate extending in t e direction of the length of the rail and two tongues on the other plate between which said longitudinal tongue rest-s.

2. A rail chair comprisin two plates each I embrace the rail flange, one of said plates ar ranged with relation to the rail so as to be subjected to overturning strains and the other arranged with reference to the rail so as to be subjected to tensile strains, in combination with means integral with each plate adapted to prevent their relative horizontal placed adjacent to each other comprising a, tongue on one plate parallel with the rail and adapted to fit a groove on the other plate, both locking beneath the rail.

A late for a rail chair comprising a base 21 having a projecting tongue extending longitudinally of the rail on which the'100 rail is to rest when in'position and provided with a plurality of fastening apertures on one ide of the rail and a reverted lip flange onthe J other side of the rail.

4. A plate fora rail chair comprising-a '105 base 21 on which the rail. is adapted to rest and provided with a plurality of fastening apertures on one side of the rail and 'a re verted lip flange on the other side of the rail and with a projectin longitudinally of the rai upon which the ra is adapted to rest when in position, in combination with a second plate also comprising a base on which the rail is adapted to rest alongside of the first plate with a plurality of fastening apertures on the side of the rail opposite from those of its companion plate, a reverted lip flange on the side of the rail opposite its fastening apertures and two tongues between which the tongue of the first plate rests.

5. ,A rail chair comprising two plates locked against movement with relationtoeach other transversely of the rail, one of said 1 plates being provided with a recess, a flange on one plate embracing the inner edge of the rail flange and resting on the other plate, and a flange on the other plate embracing the outer edge of the rail flange and forming a I tongue to enter the recess in the first plate.

tongue eXtendin 110 and provided 115 6. A rail chair comprising two plates I first plate and prov ded with a vertical ex- 10 locked against movement with relation to tension bearing against the Web of the rail. each other transversely of the rail, one of In testimony. whereof I affix my signature said plates being provided with a recess, a in presence of two witnesses.

5 flange on one plate embracin the inner ed e 1 of the rail flange and restiri g on the oth er JENNINGb WISE plate, and a flange on the other plate ern- Witnesses: bracing the outer edge of therail flange and N. C. MGGEE,

forming a tongue to enter the recess in the J (O. ROBERTSON.

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