US1628231A - Rail awchok - Google Patents

Description

Patented May 10, 1927.

ROBERT L. COCHRANE,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

RAIL ANCI-IOR.

Application led .August 9, 1926. Serial No. 128,087.

My invention relates to rail anchoring devices for'resisting the longitudinal creeping movement of railroad rails.

The primary object of the invention is to provide an improved one-piece anchor device which may be driven into gripping engagement with one flange of the rail base and which will be maintained in its operative position on said base flange by the gripping action produced. In this connection, I contemplate as one preferred embodiment, an anchor device which may be made trom a relatively small metal plate, but

which, nevertheless, will provide a relative-- ly wide tie abutting'portion and which will also provide rail gripping portions of sufficient strength to resist the stresses and pressure to which devices of this character are subjected when in service. v

A more specific object of the invention is to provide an improved rail anchor device which, when in its applied position on a rail, will engage one flange only of the rail base.y and to provide in an anchor of this f character rail gripping jaw portions having sufiicient resiliency to compensate for the expansion and contraction of the rail, and which jaws will also permit the anchor to be applied to rails, the base fianges of which may vary in thickness or contour.

Another object is to provide an anchor of the above' character which will take'a biting grip on the top and bottom surfaces of a rail in a manner to resist movement ot the anchor in a direction to lose its grip on the rail. The portions for engaging the rail base in certain of the embodiments are pret-ferably in the form of teeth arranged in staggered relation to each other and project outwardly from the body in a direction longitudinally ofthe rail so as to provide an effective increase in the gripping surface of the -j aw portions relative to the thickness of the anchor and so that the upper and lower teeth will cooperate with each other to effect a firm shackle hold on the rail when the rail tends to creep longitudinally of the track.

'With the above mentioned and other objects in View. the invention consists in the new and improved constructions hereinafter described and included in the scope of the appended claims.

In the drawings:

Fig. 1 is a plan view of the base portion of a railroad rail showing a rail anchor constructed in accordance with my invention applied thereto.

Fig. 2 is a side view of the anchor shown in Fig. 1, the rail base in this view being shown in section.

Fig. 3 is a cross section taken through the anchor on line 3-3 of Fig. 2.

Fig.` 4 is a view in perspective of the anchor device shown in the preceding figures. i

Figs. 5, 6 and 7 are views similar to Figs. 1, 2 and 3, showing a slightly modiiied form of anchor device. l

Figs. 8, 9 and 10 are plan, side and perspective views respectively, of another modi .fied embodiment of my invention.

Fig. 11 is a fragmentary plan view of the rail base flange illustrating the manner in which the rail gripping portions of the anchor score the upper and lower surfaces ot' therail base.

Fig. 12 is a plan view of a railroad rail showing another embodiment of the invention applied to its operative position on a rail base.

Fig. 13 is aview in perspective of the modification shown in Fig. 12.

Fig. 1li is a sectional view taken on line nt-i4. of Fig. 12.

Fig. 15 is a plan view of the blank from which the embodiment shown in Figs. 12 to 14 inclusive. is formed: and i Fig. 16 is a. modification of the crnbodin ment shown in Figs. 12 to 15 inclusive.

In Figs. 1 to 4t. inclusive, I have shown one embodiment of my invention applied to a railroad rail 10. This embodiment is made from a flat plate of preferably spring metal. It is formed with a recess 11 adapted to receive one flange of the rail base and is positioned on the rail so that the lower por tion 12 of the plate will bear against the vertical face of a cross tie 13 or other stationary part ot the roadbed.` The recess 11 'with sharp or rounded corners or with other suitable configurations that will facilitate the forming of the slit.

Y `In other respects the form of the invention shown in Figs. 5, G and 7 may be, and preferably is the saine as that previously described in connection with Figs. 1 to l inclusive.

In Figs. 8, 9 and 10, I have shown another modilication. In this modilication the teeth 38. 39, and L11 extend transversely of the rail at an angle to the center of the anchor so as to diverge from each other. In other respects the anchor may be the same as 'that shown in Figs. 1 to 4t inclusive.

lith the teeth idisposed at the diverging angle shown, the grooves formed .in the rail base have a corresponding divergence with respect to the `vertical plane of the anchor. Therefore, any outward movement of the anchor at right angles to the rail, that is to say, any movement in the direction to loosen the gripof the anchor on the rail is resist-ed by the side Walls of the diverging grooves formed in the top and bottom surfaces ot the rail base. It will also be seen from au inspection ofthe drawings that the diverging angular portions ofthe teeth present a relatively Wide cutting edge in opposition to the forces tending to move the anchor in the direction to `loosen its grip on the rail. The arrow shown in 11 illustrates the direction in which the anchor in moved in removing it from the rail, which path of movement intersects the angle of the grooves in the top and bottom surfaces of the rail base.

In Figs. 12 to 15, inclusive is shown another modification in Which jaw portions 42 and 43 a're disposed in spaced relation to each other longitudinally of the rail. This embodiment is made preferably from a. flat metal blank of the configuration shown in Fig. 15. The blank is bent along the dotted vertical line 44 to the U-shaped configuration shown in Fig. 13. The blank is provided with rail base receiving recesses 45 and .ALG which, when the blank is bent to ther position shoivn in Fig. 13, are adapted to tit over the rail base. The said recesses are preferably formed out of alignment as indicated in Fig. 15. so that the anc-hor is subjected to torsional stress when the jaw portions are driven into gripping engagement with the rail base. In Fig. 16 I have shown au anchor device somewhat similar to the form of the. invention `illustrated in Figs. 14 afnd 15, `except that the spaced jaw members @apaga-are provided with angularly disposed rail engaging teeth substantially of the form shown in Figs. 1 to 4. inclusive. The rail engaging edges of the teeth eX- tend atan angle to the planes of the surfaces engaged so as `to be forced by their resiliency into biting engagement with the railv base. The rail engaging recesses are preferably formed out of alignment with each other and the anchor, in addition to the resiliency of the teeth is subjected to torsional stress when the device is applied. If desired, however, the jaws may be formed in alignment, so as to loe applied Without the torsional stress above referred to. In such constructions the spring pressure of the teeth will. be suiiicient to hold the teeth in their interlocking engagement with the grooves formed in the rail by the biting action of the teeth.

IVhile I have shown and described my invention in connection With several specific embodiments, it ivill be understood that I do not Wish to limit myself to the saecitic embodiments shown., except insofar as the ap pended claims may be limited.

I claim:

1. A rail anchor for engagement With one fiange only Vof a rail hase, comprising a member formed With rail engaging portions spaced with relation to each other longitudinally of the rail and adapted to be driven transversely of the rail into biting engagement with the rail base.

2. A rail anchor for engagement with one flange only of a` rail base, comprising a .member formed with rail engaging portions normally spaced out of alignment with each other when the anchor is free of the rail and adapted to be driven transversely of the `rail into biting engagement With the rail base.

3. A one-piece rail anchor adapted to engage one flange only of a rail consisting of a member formed With jaw portions normally spaced with relation to each other longitudinally of the rail base and adapted to exert a resilient gripping action on the surfaces of said rail base. l

4t. A one-piece spring metal rail anchor adapted to engage one flange only of a rail base. consisting of a member formed Wit-h jaw portions normally spaced With relation to each other longitudinally of the rail and adapted to exert a resilient gripping action on the surfaces of said hase flange.

5. A one-piece spring metal rail anchor adapted to engage one flange only of a rail base. consisting of a member formed with jaw portions normally spaced with relation to each other longitudinally of the rail and adapted to be flexed vertically during the application of the device to a rail to exert a resilient gripping action on the surfaces of said base flange.

6. A rail anchor for engagement With one flange only of a rail hase comprising a body portion formed With rail base engaging ja-Ws for gripping the top and bottom surfaces of a rail hase, one of said jaws being- 'tormed with a portion Which projects out.- u'ardly from the body of the anchor in a j posed in line with the body ofthe device and with teeth arranged in staggered relation to` each other adapted to bite into the rail base during the application ofthe anchor to the rail.

19. Arail anchor comprising a body portion formed with `jaws and adapted to be driven transversely of the rail into gripping engagement with the rail base; said jaws being formed with rail gripping portions disposed in line with the body of the anchor and with teeth arranged in staggered relation to each other and provided with sharp biting edges disposed at. an"angle to the plane of the surface of the rail base engaged and adapted to bite into the rail base during the application of the anchor to the rail.

20. A rail anchor adapted to grip one flange only of a rail base comprising a body portion formed with jaws adapted to be driven transversely of the rail into gripping engagement with said rail base; the said aws being formed with teeth arranged in staggered relation to each other and adapted to bite into said rail base during the application of the anchor to the rail.

2l. A rail anchor adapted to engage one base flange only of a rail and comprising a body portion formed with jaws adapted to be driven transversely of the rail into gripping engagement with said base flange; the said jaws being formed with teeth arranged in staggered relation to each other and each provided with a sharp biting edge disposed at an angle to the plane of the surface of the rail base engaged and adapted to bite into the rail base during the application of the anchor thereto.

22. A rail anchor adapted to engage one base flange only of a rail base7 comprising a body portion formed with jaws and adapted to be driven transversely of the rail into gripping engagement with the rail base; the said jaws being formed with rail gripping portions disposed in line with the body of the device and with teeth arranged in staggered relation to each other adapted to bite into the rail base during the application of the anchor to the rail.

23. A one-piece rail anchor comprising jaws formed with teeth disposed at an 'angle to each other and adapted to be driven into biting engagement with the top and bottom surfaces of the rail base.

24. A one-piece rail anchor comprising jaws formed with teeth disposed at an angle to each other and adapted to be driven into biting engagement with the top and bottorn surfaces of the rail base, the said teeth being so positioned that any tendency to rock the anchor about an axis transversely of the rail base tends to effect a shackle grip of the anchor on the top and bottom surfaces of the rail base.

25. A one-piece rail anchor adapted to be driven into gripping engagement with one flange only of a rail and comprising jaws formed with teeth disposed at an angle to each other and adapted to be driven into biting engagement with the top and bottom surfaces of the said base flange, the biting edoes of said teeth being disposed at an angle to the planes of the surfaces engaged.. 'whereby said biting` engagement. is confined to the outer edges of the teeth.

26. A one-piece rail anchor comprising jaws formed with teeth disposed at .an angle to each other and adapted to be driven into biting engagement with the top and bottom surfaces of the rail base and adapted to groove the rail during the application of theanchor and to interlock with the walls of said groove.

27. A one-piece rail anchor comprising jaws adapted to be driven into gripping engagement with one flange only of a rail base and for ied with teeth which bite into the top and bottom surfaces of the rail base to provide grooves, the said teeth being resilieiit.r whereby they are held in interlocking engagement with the walls of said grooves.

28. A one-piece rail anchor comprising jaws adapted to be driven into gripping engagement with one flange only of a rail base and formed with teeth which bite into the top and bottom surfaces of the rail base to provide grooves which diverge form each other transversely of the rail.

29. A one-piece rail anchor comprising jaws adapted to be driven into gripping engagement with one flange only of a rail base and provided with teeth bent outwardly from opposite sides of the body and disposed at diverging angles with relation to*- each other'so as to forni in the top and bottom surfaces of the rail base grooves disposed at an angle to the line over which the anchor is moved to remove it from the rail.

30. A one-piece rail anchor comprising jaws adapted to be driven into gripping engagement with one flange only of a rail base and formed with teeth which bite into the base flange of the rail to provide grooves; the said teeth being resilient and the bitingedges thereof being disposed at an angle to the planes engaged so as to confine the biting engagement of the teeth to their outer corners.

3l. A rail anchor for engaging` one flange only of a rail base, made from a fiat plate of springl metal bent to a substantially U- shape configuration to provide jaw portions. spaced with relation to each other longitudinally of the rail, said jaw portions being formed with recesses normally out of alignment with each other when the anchor is free of the rail, whereby movement of' said jaws to their rail grippingl positions subjects the anchor to torsional stress.

32. A; raleneliorfor engaging one Flange only of amalba'se, made from a flat plate of spring metal bent toa enbsantally ll# shape tolprovde jaw portions spaced with `relation to-eafch othef longitudinally of the 1ul,"-sz1d jaw portions being formecl with recesses normally ont` of alignment with ea'cll othel1i when the anchor is free of the rail, whereby movementV ol said jaws 'to mennen their ml gripping jioetionle, eulljeele lille W lng formell with a. pllnnlty olE l'esillen {oeil} m'nged in staggered l'elzlllonto ezlehyotlmel."

HUBERT ll. Cl' )Ul-I lblllNlfL anchol' 'to torsional stl se, und said jews lue--

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