US1136180A

US1136180A - Cast-metal railroad cross-tie.

Info

Publication number: US1136180A
Application number: US71075912A
Authority: US
Inventors: George W Snyder
Original assignee: HARRY E SHELDON
Current assignee: HARRY E SHELDON
Priority date: 1912-07-22
Filing date: 1912-07-22
Publication date: 1915-04-20
Anticipated expiration: 1932-04-20

Description

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CASH METAL-RAILROAD CROSS TIE. APPLICATION FILED JULY 22. m2.

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G. W. fiiWDER.

CAST METAL RAILROAD CROSS TIE. APPLICATIONHLED IULY 22. 1912.

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Patented 120, m5. I

GEORGE W. SNYDER, PITTSBURGH, PENNSYLVANIA, ASSIGNQE'TQ WT E. n SHELDON, F PITTSBURGH, FENMSYLVAW CAST-METAL BMW GENES-Tm.

specification of Letters Patent.

Application filed July 22, 1912. fierial No. H0159.

To all whom it may concern citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Cast-Metal Railroad Cross-Ties, of which the following is a specification.

My invention relates to metal railroad cross-ties, and rail-fastening devices therefor.

The principal object of my invention is to provide an all-cast metal railroad cross-tie having the metal distributed according to the requirements of its several parts. By making the cross-tie of cast metal, I am able to arrange the metal exactly where it is needed and to'dispense with metal where it is not needed. For instance, I arrange the metal mostly under the rails, the rail supports having between them 'a connector whose strength is merely such as is required to hold the rail supports together and to 've the necessary beam strength. I

Another object is to provide novel means to prevent the tie from moving in any direction, whether longitudinally, transversely or diagonally.

A still further object is to provide the tie with suitable rail fastening means of a novel character.

Other minor objects will appear hereinafter. 0

Some of the features of my invention are applicable to metal ties whether rolled, forged, or otherwise made, and I do not restrict my invention to cast-metal unless the claims specify cast-metal.

Referring to the accompanying drawings. Figure 1 is a plan of the preferred form of my tie, broken away in the center; Flg. 2, a side view of one end of the same, with a rail shown in section; Fig. 3, a section on the line 33, Fig. 1; Fig. 4, a section on the line 4-4:, Fig. 1; Fig. 5, a section on the line 5-5, Fig. 1; Fig. 6, a section on the line 66, Fig. 1; Fig. 7 ,a plan of one rail-seat with fastenings, liner, and shim in place; Fig. 8, a side view of same with a rail in section; Fig. 9, a view like Fig. 8 without the shim and with a difl'erent form of key or wedge; Fig. 10, a side view of the key or wedge shown in Fig. 9; Fig. 11, an end view of the same; Fig. 12, a fragment of a railseat with a modified form of liner; Fig.- 13,

an end view of the same liner; Fig. 14, an elevation of an anti-rail creeping device; Fig. 15, a plan of the same; Fig. 16, an elevation of a modified form of raillastener; Fig. 17 an elevation of the same at right angles to Fig. 16; and Fig. 18, an elevation of a similar form of rail-fastener slightly modified.

The drawings illustrate only a few of the forms which my invention may assume. Although I shall describe the drawings minutely, I do not desire to be confined to the exact shape and arrangement of the various parts shown thereon, but desire to cover such modifications as come within the scope of the appended claims.

On the drawings, 1 and 2 represent the end or rail-support portions of the cross tie, and 3, the connecting portion. The railsupporting portions have the elongated horizontal bases or flanges 4 which rest upon the ballast, and the connecting portion 3 has the horizontal flanges 5 substantially in line with the bases 4. I

6 is a vertical web extending centrally along the tie, preferably from end to end. The portion of the web between the rail seats is surmounted by the flanges 7 extending out at both sides of the web, but these may be of difi'erent section from that shown or may be omitted altogether, making the section of the connecting portion of the tie in the shape of an inverted T. A portion of the web over each base 4 has the horizontal chair, bed, or rail-seat 9, which consists of horizontal flanges extending laterally atboth sides of the web 6. The rail seats 9 and the top flange? and the web 6 are supported by the ribs or stifieners 10 but these may be supported diderently from the manner shown or some of them may even be omitted.

At the outer end of each chair, bed, or rail-seat 9, I place the rail-fastening 11 consisting of the vertical portion 12 and preferably of the diagonal or hook-like portion 13, the function of: the latter being to keep the rail 15 and the tie from coming entirely apart. The hook 13 may fit tightly to the rail but will preferably be so arranged as to permit small vertical motion of the rail without moving the cross-tie. The vertical portion or buttress 12 may also fit the rail, but there will generally be interposed a liner 14. or 1%, which will hereinafter be described. The sliding of the cross-tie on the ldm Tdllt ltd ballast longitudinally, diagonally, or transversely is prevented so far as may be necessary by providing. hemispherical, cylindrical, pyramidal, wedge-shaped or other projections 17 which are cast integrally with the tie and project from the bottom of the base 4 into the ballast. I

All the parts hereinbefore described are made in a single casting. Y

The liner, two forms of which are shown as 14 and 14, will generally be interposed.

between the rail 15 and the outer rail fasten- I ing' 11, in order to permit rails of wider or narrower base to be substituted without altering the main tie casting or the gage of the track. But if it is not desired to provide shim would be used with the liner 14 The shim need not be used if thicker liners are preferred to take up the flange wear of the outer rail of curves.

The inner rail-fastening 18 consists of a U-shaped piece of metal, having its central portion 19 substantially vertical and extending through the elongated slot 20, in one of the flanges of rail-support 9. The lower memberor leg 21 of the fastening 18 is horizontal, while the upper member or leg 22 of the fastening 18 extends like a hook over the inner flange of the rail 15, the edge of this flange resting against the central portion 19 of the fastening 18, unless the insulator 35 be interposed between them.

24 represents a flat key or wedge which is seated in the slot 20 between the rail-fastening 18 and the inner end of the slot to prevent the fastening from moving inwardly and to prevent the rattling of the key.

cotter-(pin 25 or the like is placed transversely through the key or wedge 24 just beneath the bed or chair 9 to retain the wedge in place. The key or wedge is tape'red downwardly so that it may automatically take up any looseness and prevent its rattling. The slots 20 permit the keys 24 to be adjusted for different widths of railbases. Another form of inner rail clip is shown at 18 Here the vertical portion 19 is shown without a taper, though it may, of course, be tapered. The top 22 is like the top'22 of clip 18. The bottom 21, however, is at right angles to the location of the bot- .tom 21 and extends not across but along the rail. This form of clip might be inserted from the bottom of the slot 20 and would be supported by a wed e 24" or by the form shown ,at 23. This orm 23 is inserted from the bottom of the slot 20. It has a slightly tapered bottom 26, a rectangular portion 27 and a screw 28 all in one piece; and is held tightly in place by the nut 30 through the washers .29. Another form of inner rail clip and wed e is shown at 18". Here the parts 22" an 19 are like the form 18, but the base 21 has only one leg as shown. This clip or the clip 18 may be inserted in the slot 20 from the bottom as hereinbefore described,-or by making a portion of the slot circular as shown at 20 either clip may be inserted from the top, then turned horizontally through 90 degrees and then moved up to the rail and secured by the wedge 24, in which case the casting should contain the shoulder 36 with the inclined slot shown, or secured by a wedge 23 bolted into place.

The slots 20 are arranged on the same side of the web 6, while similar slots 20 are arranged on the opposite side of the web 6. In the slots 20 additional inner rail clips of an of the patterns described may be inserte or I can secure the anticreeping devices 32 which engage the edge of one railflange. Anti-creeper 32 may consist of an eccentric top flange 33 integral with a vertical cylindrical post 34 which is secured by a cotter pin in the transverse hole shown in dotted lines.- As the rail tends to creep the post 34 tends to turn,

which tightens the grip of the outer edge of the top flange 33 against the rail 15. But I do not limit my invention to any definite form of anti-creeper and the slot.31 may be used for an additional inner rail clip 18 or 18 or 18, or not used at all, exce t onaccount of a change of width of rall-base-if desired.

At 35 is shown an insulation between the rail and the tie. I do not limit my invention to any particular form or material of this insulation.

The tie is designed so as to concentrate the metal where the vertical pressure is the greatest. The horizontal area of the bases 4 is made large enough to prevent the tie from being pressed into the ballast. The rail-supporting portions 9 are made considerably smaller both longitudinally and transversely than the bases 4. The center of the rail-supporting base 4 is not at the center of the rail, but the center of the said base'is outside of or beyond the center of the rail, because the pressure due to a train is transmitted not only downwardly but also outwardly. The form of the top flanges of my tie need not be as shown, and the stifiening ribs may be differently arranged, and by differently distributin the metal, they might be dispensed wit It is seen that,'by making my tie of cast metal, I ma design the same of various shapes and sizes in its difierent parts, which I could not do by rolling or forging. By using only the required amount of metal in the different parts of my tie I am able to use a minimum amount of metal, thereby reducing the 305i? greatl as compared with improperly proportione ties.

1. The combination of a metal rail-tie having a rail-seat provided with a slot adjacent to one rail-flange, a rail-fastener in the slot, a wedge-shaped key in the slot between the rail-fastener and the outer end of the slot, a reinforcing rib carried by the tie for the key at the outer end of the slot, above the rail-seat and in line with the railfiange and a cross-pin extending through Signed at Pittsburgh, Pa, this 16" day of July, A. D. 1912.

GEURGE W. SNYDER.

Witnesses:

ALICE E. DUFF, ELVA STANIEK.