US1265422A - Compound rail. - Google Patents

Description

J. K. BOYD.

COMPOUND RAIL.

APPLICATION FILED MAR. 2. |918.

snm i n sacarse rarer-rr onirica.

Jamas n. Born, or wirnmsnune, rnnnsrnvnnra.

COMPOUNB RAIEL.

Application led March 2, 1918.

Compound Rails, of which the following is v a specification.

My invention relates to the construction of rails used in building the tracks of electric, steam and similar railways.

The weight of therolling stock of railways has enormously increased in recent years, while the strength and durability of the track rails, although being constantly increased in size, has not kept pace with the increase in the loads sustained bythe rails.

One reason for this is because ofthe impossibility of increasing the sizeof the head of the track rails and at the same time to work the metal of the rail head tothe eX- tent necessary to make the steel dense enough to have the desired wearing qualities with existing mill equipment.

One obj ect of my invention is to provide a compound track rail of improved construction having novel means whereby the desired increase in strength, rigidity, and wearing qualities is obtained.

Another object of the invention is the provision in a compound rail of novel means whereby the load and side thrust of the rolling stock is transmitted from the rail head to the base anges of the rail girder through the clamping members and `without undue strain upon the rail girder web and liability of crescent breaks in the rail girder is thereby avoided and overcome.

Another object of this invention is to provide a compound track rail having improved means whereby the necessity of frequent repairs is avoided and overcome and the cost vof maintenance of tracks employing such rails is lessened, and whereby renewal of the wearing parts of the track rails is easily and quickly effected withoutdisturbance or removal of the rails from the ties supporting the track rails on the road bed of the railway.

Another object of this invention is the provision of a compound track rail of improved construction and having novel means whereby the distribution of the metal in the rail is effected in such manner as to comhine maximum strength and rigidity and Specification of Letters Patent.

Patented Inlay 7, ill.

serial No. 220,025.

wearing qualities in a rail 'of given size or weight.

Another object of the invention is to provide va compound track railof improved construction, wherein the metal of the several parts of the rail is distributed to facilitate the rolling operation and to work the metal in the wearing parts of the rail so as to increase the strength and durability or re. sisance to wear of such wearing parts of the ral A further object of the invention is to provide a compound rail having novel means whereby the parts of the rail are assembled and detachably held in assembled relation.

A still further object of my invention is the provision of a compound track rail hav ing the novel constructions, arrangements, and combination of parts shown in the drawings, hereinafter described in detail, and specifically pointed out in the appended claims.

Referring now to the drawings, forming part of this specication, Figure 1 is a sec-v tional end elevation showing a compound rail embodying my invention, the section being taken on the line I-l of Fig. 3.

Fig. 2 is a sectional end elevation taken on the line ll--ll of F ig. 3.

Fig. 3 is a side elevation on a smaller scale, showing contiguous alined track rails as assembled and joined in constructing railway tracks employing my improved rail, and Fig. A is a similar side elevation showing contiguous alined track rails, constructed in'accordance with my invention. Fig. e is a continuation of Fig. 3, an intermediate and the vabutting ends of adjoining rails loeing shown by connecting Figs. 3 and A on the line X-X of these figures.

ln the accompanying drawings, the head A forming the wearing surface of my improved rail is shown supported vupon the liangedbase or girder B of the rail, being fastened to the girder by means of clamping members formed by the clamping clips C and clamping splice bars D.

The rail head A comprises a wearing surface 2 having integrally formed marginal flanges 3-3, the lower ends -ll of the flanges 3 being turned outward, substan tially at right angles to the other part of the flanges 3, and the Hanges 3 forming a tapering groove inthe under surface of the head A, the so-formed groove having inwardly 11o `clearly shown in Figs. 1 and 2.

inclined or converging side surfaces 5, as is An integral projection or ridge 9 is pro-y vided on the girder VB above the flanges 8 8, this projection having inwardly and upwardly sloping side surfaces 10 10 and having a contour which preferably is made to neatly fit within the recess or groove in the lower face of the rail head A and to have a surface Contact therewith. (See Figs. 1 and 2.)

The flanges 7 and 8 taper, the sloping up- .per vsurface 11 of the bottom flanges 7 and under surface 12 of the top flanges 8 being inclined at oppositeangles to provide the clearance necessary in the rolling operation. The ends 4 4 of the flanges 3 on the rail head A also taper, the sloping upper surface 13 thereof being inclined and extending in a plane parallel to the'plane of the upper surfaces 11 of the bottom flanges 7.

The clamping clips C by which. the rail head A is detachably secured in place on top of the girder B have a web 14 whose end or girder engaging surfaces 15, 16 are oppositely inclined at the same angle as the upper surface 11 of the bottom flanges 7 and under surface 12 of the top flanges 8 of the 'rder B, and the upper edge of the web 14 as a bent flange 17 which coacts with the end of the web 12 in forming a double taper groove 18- The sloping side surfaces 16 and 2O of the grooves 18 are oppositely inclined and extend in planes parallel with the surface 13 of the rail head A and surface 12 of the girder anges 8. The grooves 18 are made deep enough to permit of adjustment so as to tightly wedge the head A in place on the girder B when the nuts 21 are tightened on the fastening bolts 22. Registering holes 23 and 24 are provided in the web of theclips andrail girder B for the bolts 22.

The clamping splice plates D have a web 25 with a foot 26 on one and a flange 27 on the other edge thereof. IlChe sloping surfaces. 28 and 29 of the splice plates D (like the corresponding surfaces of the clips C) are oppositely inclined, and have an included angle the same as that between the surfaces 11 and 12 of the girder B.

The flange 27 on the-upper edge of the splice plates D, is bent to form a double taper groove 30, being formed in the same manner as the groove in the clips C, and for the same purpose, and registering holes 23, 24 are provided in the web of the splice plates D and girder B for the fastening bolts 22.

The heads and the girders may and preferably will be made of equal length, and assembled to form broken joints, z'- ethel joint between the abutting ends of the rail heads A will not be in line with the joint be'- tween the abutting ends of the rail girders B. (See Figs. 3 and 4.)

The splice plates D, as will be seen in Figs. 3 and 4, are of sufficient length to provide for two bolts for each end of abutting rail girders, while the clips C preferably are comparatively short, and of only sufficient length to receive one clamping bolt. It will be obvious, however, that they may be made longer when found desirable or necessary. The clamping splice plates D fasten the rail heads A to the girders B adjacent to the abutting ends of adjoining girders, anda series of the clips C will be employed to fas,

ten the head to the girders at separated points between the splice plates D located at the opposite ends of the girders. j

It will be noted that the surfaces 15, 28 of the clips C and splice plates D bear on the upper inclined surfaces 11 of the bottom flanges 7 of the girder B, and that the loads put upon the rail head will be transmitted through the clips and splice plates to the bottom flanges of the rail and, through the bottom flanges 7, to the ties supporting the track rails. This is an important feature of my invention and by such construction the rail is strengthened and stiflened, so as to readily resist the enormous side thrust put upon the rails by the rolling stock and to substantially eliminate the occurrence of crescent breaks in the base flanges of the rails, an ever present danger in both T-head and in .compound rails, as heretofore made- Care should be taken to make the spacing of the bolt holes 24 in the web of the rail the rail to temporarily fasten together the ends of a broken rail -girder or rail head by substituting a pair of splice plates D for two or more of the clamps C The advantages of my invention will be appreciated by those skilled in the art. The head of the rail is designed so as to be readily rolled, and the contacting surfaces between the head A and girder B are of a contour which enables the parts to be made within the usual working limits and at the same time provide a slight draw on the parts in tightening the clamps and clamping splice plates on the rail.

The rail head is of comparatively light section, so that it is possible to vget sufficient work on the metal in rolling the head necessary to produce the desired dense metal having the necessary wearing qualities.

' The composition of the metal in the head, which can be different from that in the base or girder, may be ordinary rail steel or of neeaeea a;

high carbon, alloy, or heat treated steels, of a quality-not possible to use with ordinary integrally formed track rails. rihe girder may be made of any grade of steel which v will afford the necessary strength and elasticitywithout taking into account the wearing qualities, as is necessary in an integrally formed rail.

Modications in the construction and arrangement of the parte may be made without departing from my invention as dened in the appended claims.

l. In a compound rail the combination oi a rolled metal head having 'integral flanges, said iianges forming a longitudinal groove in the bottom surface of the head and having tapering horizontally entending lower edges, an integral rolled metal girder having a web and tapering horizontally extending top and-bottom flanges, clamping members tor securing the rail head on the girder, said clamping members havin sloping surfaces engaging with oposite y sloping surfaces on the tapering anges of the head and the top and bottom flanges of the girder in securing the rail head to the girder, and means for :fastening the clamping members in holding engagenient with the danges.

clamping members having sloping surfacesengaging with oppositely sloping surfaces on the taperinganges of the head and the top and bottom anges of the gird'erin securing the rail head to the girder, part of said series of pairs of clamping mem bers being arranged to connect the abutting ends of said girders, and means for fastening the clamping members in holding engagement with the ilanges.

8. ln a compound rail,` the combination -o ak rolled metal head having integral flanges, said flanges forming a longitudinal groove in the bottom surface of the head and having tapering horizontally extending ,lower edges, an integral rolled metal girder having a web and taperinghorizontally extending top and bottom flanges, a series of pairs of clamping members for securing the rail head on the girder, said clamping members having sloping surfaces engaging with oppositely Vsloping surfaces on the tapering flanges of the head and the top and bottom iiangesof the girder in securing the rail head to the girder, part of said series having of pairs of clamping members being arranged to connect the abutting ends of said girders and. said heads, and means `for fastening the clamping members in holding engagement with the flanges.

in a compound rail,A the combination of a rolled metal head having integral danges, said iangesiorming a longitudinal groove in the bottom surface of the head and having tapering horizontally extending lower edges., an integral rolled metal girder having a web andv tapering horizontally er.- tending top and bottom danges, a ridge on said girder above the top iianges thereo, said ridge having converging sides tting the inclined side surfaces of the groove in said rail head, clamping members for securing the rail head on the girder, said clamping members having sloping surfaces env gaging with oppositely sloping surfaces on. the 'tapering flanges of the head and the top and bottom liangcs of the vgirder in securing the rail head to the girder, and means for fastening the clamping members in holding engagement with the danges.

5. ln a compound rail, the combination of an integrally formed rolled steel girder, said girder having a web and tapering oppositely extending top and bottom anges with a longitudinal ridge above the top flanges oithe girder, said ridge having upwardly and inwardly converging sides, an.

integrally Aformed rolled steel head on top of said girder, said head having a longi tudinal groove on the bottom thereof of the same contour as said ridge and outwardly extending tapering :flanges the lower edgesI or the head, a series of clip astenings for securing the head to the girder, said fastenings havingv a double taper groove in one side engagin with the oppositely inclined surfaces or the langes on said head and top anges of the girder, and having a foot engaging the inclined upper surface of the lower ange of said girder, and means forl fastening the clips in holding engagement lwiththe anges.

6. lin a `compound rail, the combination of`^an integrally formed rolled steel girder, said girder having a web and tapering oppositely extending top and bottom flanges with a longitudinal ridge above the top flanges of the girder, said ridge having upwardly converging sides, -an integrally formed rolled steel head on top of said girder, said head having a longitudinal groove on the bottom thereof of the same contour as said ridge, and outwardly eX- tending ytapering flanges at the lower edges of the head, aseries of clip fastenings for ree' securing the head to the girder, said clips a double taper groove in one side engaging with the. oppositelv inclined suru lfaces of the flanges on said head and top flanges of the girder, and having a foot engaging the inclined upper surface of the lower flange of `said girder, registering holes in said clips and Ygirder and bolts extending through said registering holes for fastening said clips to the girder in holding engagement with the anges. on the head and girder.

7. In a compound rail, the combination of aiianged head having a longitudinal groove in the-bottom surface thereof, said groove having inclined sides, a lianged girder having a longitudinal ridge on its upper surface, said ridge having the contour of said groove, and a series of pairs of clips for fastening the head on the girder, said clips having a groove with inclined sides in one face thereof in which the contacting anges on the head and girder are positioned, and

means for fastening the clips to the rail girder, said meansbeing arranged to draw the .clips into tight holding engagement with the contacting ianges of said head'and girder.

8. ln a compound rail, the combination of a flanged head having a longitudinal groove in the bottom surface thereof, said groove havinginclined sides, a'anged 'girder hav-A ing a longitudinal ridge of the contour of said'groove, and a series of-vpairs of clips for fastening the head on the girder, said clips having a groove with inclined sides in one face thereof in which the contacting flanges on the head and girder are positioned, part of said clips forming clamping splice plates for connecting the abutting ends of the rail girders, and means for fastening the clips to the lrail girdensaid means being arranged to draw the clips into tight holdingengagement with the contacting flanges of said head and girder.

9. ln a compound rail, the combination of an integral rolled steel girder having a ,web and oppositely extending top and bottom anges and a longitudinal ridge above the top flanges of the girder,said ridge having converging sides, an integrally formed rolled steel headon top of said girder, said head having a longitudinal groove on the bottom thereof of the same contour as said ridge and having outwardly extending flanges at the lower edges of the head, a series of clip fastenings for securing the flanges on the head to the top anges of said grder, said clips having a double taper groove in one side engaging with 'the oppositely inclined surfaces' of adgacentanges on said head and girder to secure the headv on the girder, and means for fastening the rail clips in holding position on the garder.

naeaeea l0'. ln a compound rail, the combination of a rolled metal head having integral lflanges, said langes forming a longitudinal groove in the bottom surface of the head and having tapering horizontally extending lower edges, an integral rolled metal 'rder having a web and tapering horizontal y extending top and bottom flanges, clamping members for securing the rail head on the girder, said clamping members having sloping'surfaces engaging with op ositely slo ing surfaces on the tapering anges of t e head and the top flanges of the girder in securing' the rail head to the girder, and means for fastening the clampingmembers in holding engagement with the franges.

11.l ln a compound rail, the combination of a rolled metal head having integral flanges, said flanges forming a longitudmal groove in the bottom surface of the head and having tapering horizontally extending lower edges, an integral rolled metal girder having a web and tapering horizontallyr extending top and bottom flanges, a ridge on said girder above the'top flanges thereof, said ridge having converging sides fitting the inclinedside surfaces of the groove in said rail head, clamping members for securing the rail head on the girder, said clamp'- ing members having sloping surfaces engag ing with o positely sloping surfaces on the tapering ilinges of the head and the top flanges of the girder in' securingthe rail head to the girder, and means' for fastening the clamping members, in holding engagement with the flanges.

12. In a compoundrail, thecolnbination of an integrally formed rolled steel g'lrder, said girder having a web and tapering oppositely extending topan'd bottom Hanges with a longitudinal ridge above the-"top flanges of the .girder, said ridge having-upwardly and inwardly converging sides, an integrally formed roller steel head on-'top of said girder, said head having a longitudinal groove on the bottom thereof of the same contour as said ridge andoutwardly extending tapering flanges `atthe lower edges of the head, a series of clip fastenings for securing the head to the girder, said fastenings having a double taper groove in one side engaging with the oppositely inclined surfaces of the anges on said head and top flanges of the girder, and means for fastening the clips in holding engagement with theptlanges.

ln testimony whereof I have hereunto set my hand. y

JAMES K. BOYD.`

@spies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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