US1066408A - Splice-bar and tie-plate. - Google Patents

Description

M. M. GRAVES.

SPLICE BAR AND TIE PLATE.

APPLIOATION rum) 11.22, 1913.

1,066,408. Patented July 1, 1913.

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COLUMBIA MMWH B0. VLSHINITON. D. C.

MARTIN M. GRAVES, 0F LOUISVILLE, KENTUCKY.

SPLICE-BAR AND TIE-PLATE.

1 ,ocaios.

Specification of Letters Patent.

Patented J uly 1, .1913.

Application filed April 22, 1913. Serial No. 762,956.

To all who 11bit may concern Be it known that I, MARTIN M. (leaves, a citizen of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful. Improvenmnts in Splice- Bars and Tie-Plates; and I do hereby dcelare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to devices for joining the ends of railroad rails and for supporting the joints, and has for its principal object the provision of means by which the joint is supported at all times by means of the ties.

A further object of the invention is the provision of means by which the splice bars are held in a clamped position against the web of the rail to securely lock them in position and hold them from (iliSPltLCOlllOIlt even though the bolts usually employed in securing the ends of the rails together hecome loosened.

Another object of the invention is the provision of improved construction oil tie plate that gives a slight resilience to the rail joint.

The invention will be described in detail hereinafter and illustrated in the accompanying drawings in which- Figure lis a cross section of a railroad rail splice ha: and tie plate constructed in accordance with the invention. Fig. 2 a plan view of the tie plate, Fig. 3 an enlarged detail view in cross section of the tie plate, Fig. it; a View of a modified form 01 splice bar, the rail, splice bar and tie plate being shown in section, Fig. 5 a similar view of another 'lorl'n of splice bar, and Fig. 6 a top plan view of a railroad rail joint constructed in accordance with the invention.

In the drawings similar reference charactors will be used to designate the several parts tl'iroughout the several views.

The invention contemplates the provision of improved means for fastening the ends of railroad rails together. lleretofore in the construction of railroad joints the vibration of the rails caused by the passage of trains over the track has caused a loosening of the nuts of the bolts at the joints which has often led to the spreading of the rails at the joints, and to serious accidents caused thereby. Furthermore the vibration incident to the passage of the train has caused a vertical movement of the rail causing the spikes to be loosened from the tics especially at the joints.

In my invention the joint is carried by the splice bars and tie plates that are secured to the ties and because oil its peculiar constructio-n consisting in Forming the side edges oi. the splice bars tapered toward the ends thereof. and providing the tie plates with upwardly extending llanges to engage said tapered edges, said tie plates being adapted to be driven on the splice bars from the ends and serving to securely clamp the splice bars to the rails, a rail is secured that is perfectly rigid, and the ends of the rails are held from relative movement. Furthermore the tie plates as will hereinafter be described are formed ol" plates of steel bent back upon themselves and having their ends disengaged thus torming a resilient cushion for the joint and in a measure taking up the vibration caused by the passage ol the train.

Referring now to the drawings the railroad rails are indicated in all of the figures by the character A, while the ties are designated 13. As shown in Fig. (3 a joint is provided consisting of a pair of splice bars, designated generally at l. secured to the meeting ends ol the rails A by means of bolts and nuts 2.

The side edges ol the splice bars 1 are tapered from their middlcs toward their ends as shown at eland have the corners of the splice bars rounded as shown at The tie plates which shall be described in detail hereinafter are shown generally at 6 and provided with upwardly extending flanges 7 that are adapted to engage the side edges 4 ot the splice bars 1.

In making the rail joint with my improved splice bars and tie plates the splice bars 1 a re first secured to the rails by means of. the end bolts 9. The tie plates (3 are then placed on the ends of the splice bars and driven toward the middle of the bars, and by engaging the tapered side edges l of the splice bars. said splice bars will be clamped against the web of the rail, thus securely holding the rails between the splice bars. The tie plates are then secured to the tics by means of the spikes S of ordinary construction, that are driven through openings 9 in the tie plates, the heads of said spikes 8 engaging the edges of the base of the rails through recesses 10 formed in the splice bars 1. After securing the tie plates and the rails to the ties B by means of the spikes S the bolts 2 intermediate the ends of the splice bars are then secured in position.

In Fig. 1 is shown one of the forms of my improved splice bar, the upper edges of the bars being formed with shoulders 11 to en gage under the tread of the rail, the outer portion or the splice bar having a concaved portion 12, a vertical wall or shoulder 13, and a convex lower portion 14 that is adapted to engage the flanges 7 on the tie plate 6. The inner portions of the splice bars are provided with longitudinal ribs 15 that engage the flanges of the rail A and the lower portion of the splice bars are formed with an inclined base portion 16 adapted to seat upon the flanges of the base of the rail and provided with shoulders 17 at the edges of the base flanges. In this form of splice bar it will be apparent that the vertical walls or shoulders 13 form the bearing surfaces for the bolts 2 heretofore described.

In Figs. 41 and 5 are shown modified forms of splice bars having the sides of the bars formed inclined as shown at 18 in Fig. 1, 18 in Fig. 5. In Fig. 1 the bolts 2 are passed through the splice bars and rail and triangular washers 19 are provided to give the bolts and nuts a vertical bearing to secure the splice bars in position. In Fig. 5 the splice bar is formed with recesses, or countersinks 20 and 21 for the head of the bolt 2 and mating nut respectively. The counter-sinks 21 are formed sufficiently large to permit the insertion of a wrench for actuating the nut.

In Figs. 2 and 3 are shown details of my improved tie plate designated generally at 6 in Fig. 6 heretofore described. In Fig. 3 is shown clearly the construction of the tie plate having a base portion 22 formed in- Having thus described the invention, what 7 I claim is:

1.. A tie plate for railroad rail joints consisting of a base member, up-standing flanges on opposite sides of said base member, a bent-back portion formed integral with each of said tip-standing flanges and extending substantially parallel therewith, and the free edges of said plate being extended toward one another and unsecured on a plane sub- 1 stantially parallel to the base portion aforesaid.

2. In combination with the meeting ends of railroad rails, splice bars provided with means to engage the sides of the rails and having vertical shoulders or their equiva:

lents to receive securing bolts, the side edges of said splice bars being tapered from their middles toward their ends, tie plates having Lip-standing flanges adapted to engage said tapered ends of the splice bars and hold the splice bars in engagement with the rails, said tie plates being provided with openings to receive driven means for holding the joint to the road-bed, and the splice bars being provided with recesses to receive the I heads of said driven members and permit them to engage the flanges of the rails.

In testimony whereof I aflix my signature in-presence of two witnesses MARTIN M. GRAVES. W'itnesses SADIE J. GRAUMAN,

IV. H. SWEENEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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