US1793167A - Two-tie joint plate - Google Patents

Description

17, 1931. FAR|E$ 1,793,167

' TWO-TIE JOINTHPLATE File d aJan. 18,1930

Patented Feb. 17, 1931 UNITED STATES ROBERT FARIES, or sea. DAVIDS, PENNSYLVANIA TWO-TIE JOINT PLATE Application filed January 18, 1930. Serial No. 421,829.

My invention relates to base plates for the rail joints of railroads, with more particular reference to base plates adapted to bridge two ties, the supporting rail ends being normally intermediate the ties.

A purpose of my invention is to provide a base plate well adapted to" support vertical stresses at intermediate points of the plate length and that does not interfere with the variant placing of the ties with respect to the plate length, or to the use of a middle tie between the ties supporting the ends of the late. I p A further purpose is to flange the middle portion of a plate of the character indicated upwardly and outwardly as distinguished from diagonally upwardlyand to leave its bottom in a single plane. p

A further purpose is to provide a base plate of the character indicated that is easy to install under rails in that it does not have undue vertical extension.

A further purpose is to give a plate of the character indicated a greater lateral extension beyond the outer side of the rail than beyond the inner side thereof in order to provide for the outward deflection of the pressure stresses from the train incident to the wheel flanges engaging the inside of the rail.

Further purposes will appear in the specification and in the claims.

I have elected to show. one form only ofmy invention, selecting a form that is practlcal and eflicient in operation and which well illustrates the principles involved.

Figures 1 and 2 are respectively fragmentary plan view and fragmentary side elevation of a rail joint provided with a base plate structure that embodies a desirable form of 0 my invention.

Figure 3 is an enlarged top plan view of the plate shown in Figures 1 and 2.

Figure 4 is a vertical section taken upon the line 1- 1 of Figure 3 with the rail, splice bars and fragment of a train wheel shown in dot and-dash lines. I

Figure 5 is a view to reduce scale generally similar to Figure 2 but showing a different arrangement of the ties under the base plate 1 from that shown inFigure 2.

Like numerals refer to like parts in all figures.

Describing in illustration and not in limitation and referring to the drawings The rail joint illustrated in Figures 1 and 2 is shown as supported by a base plate 5 that embodies a desirable form of my invention.

The base plate is of preferably uniform section throughout its length except that along an intermediate portion 6 of the plate opposite sides are flanged first upwardly at 7 and then outwardly at 8.

The bottom of the plate is fiat throughout the plate length except for the intermediate fiangings at 7 and 8 and the upper surface presents a channel 9 seating and fitting along the opposite sides of the base portions10 of the rail ends, efiectively preventing any lateral movement of the rail ends with respect to the plate and therefore with respect to one another.

, The perforations shown at 11 are for spikes that fasten the outside flat portions 12 of the base to the ties.

Other perforations '13 are shown along the edge of the channel. These latter perforations register with corresponding perforations in the splice bars 14, spikes being driven down through the registering perforations of the splice bars and plate into the ties, but being preferably not driven home in order to permit a small vertical play between the rails and the plate during the passage of the trains over the joint.

The channel 9 is preferably laterally offset inwardly from the center line 15 of the plate in order to more effectively support the clownwardly and somewhat outwardly directed stresses upon the rails.

I have found in practice that for purposes of easy installation it is often important to limit the vertical extension of the plate and I obtain maximum strength while limiting the vertical extension of the plate by bending the plate first upwardly, as at 7 and then outwardly as at 8, the outward bend 8 being in a plane at the desired upper limit of vertical extension.

Preferably the flange portions at 8 should extend slightly higher than the walls 16 of of the rail ends.

I have found that for ease of installation it is often also important that there should be no definite requirement as to the location of the supporting ties with respect to the length of the plate, the location of the ties varying with respect to the break between adjoining rails and for this reason I make the bottom of the plate flat throughout he plate length adapting the plate to receive a tie at any portion of its length.

In some cases it is quite desirable to place a tie directly under the middle of the plate as indicated at 17, Figure 5.

Among the advantageous features of my invention is thus the combination of flat bottom and the upward and outward flanging of the sides along t 1e middle portion of the plate, this combination adapting the plate to resist the heavy stresses at the middle of the plate without requiring any definite positions for the ties with res aect to the plate.

Another advantageous feature lies in the mere upward and outward flanging at the sides which gives the plate the requisite strength for resisting the heavy stresses at the middle of the plate without giving the plate an undue vertical de 3th and still another advantageous feature comprises the greater extension of the plate outwardly from the track rail than inwardly thereof.

This latter feature provides a better dimensional balance with respect to the resultant downward and outward line 18 of pressure on the track rails from the train wheels,-a stronger and stifi'er plate for a given sectional area.

This outward deflection of the resultant line of pressure is probably due to the engagement of the wheel flanges against the inside of the rails and without doubt is widely variant according to service conditions, so that I may desirably accommodate the extent of offsetting of the channel from the middle line of the plate to service conditions.

I recognize that the channel whose side walls limit the movement of the rail is desirable but that in many cases a full channel is not used, a flange supporting the outside of the rail takin its place.

It will be evident that the lower surface of the plate though shown flat in the illustration may have any shape which special uses render desirable and need not be restricted to the shape shown.

In view of my invention and disclosure variations and modifications to meet individual preference or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the structure shown, and I, therefore, claim all such in so far as they fall within the reasonable spirit and scope of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A base plate for rail joints, said plate having a flat bottom surface throughout the length of the plate, having an upwardly presented channel seating and fitting the base portions of the adjoining rail ends along the length of the plate and having a flange first upwardly and then outwardly on each side of the plate at an intermediate portion of its length.

2. A base plate for a rail joint, said base plate having a flat bottom surface throughout its length, having an upwardly presented channel seating and fitting the base portions of the rail ends and off-set from the middle of the plate, and having flanges on opposite sides of the plate at an intermediate portion thereof, each flange ext-ending upwardly and then outwardly.

3. In a rail joint, a base plate having a flat bottom having an upwardly presented channel seating and fitting the base portions of the rail ends, and flanges upwardly and then outwardly on each side of the plate along an intermediate portion thereof, a tie under the intermediate portion and another tie under each end of the'plate, the plate being thus supported at the middle and ends by individual ties.

4;. A rail joint base plate having an upwardly directed surface adapted to limit side movement of the rail ends in one direction and flanges upwardly and outwardly dirccted, one on each side of the rail position and extending along an intermediate portion of the plate.

5. A rail joint base plate having an up wardly directed surface adapted to limit side movement of the rail ends in one direction and flanges upwardly and outwardly directed, one on each side of the rail position, extending along an intermediate portion of the plate and spaced different distances from the center line of the rail.

6. A base plate for rail joints having an upwardly presented guard to restrain side movement of the rails in one direction and having throughout an intermediate portion of the plate only flanges on opposite sides of the rail extending first upwardly and then outwardly.

7. A base plate for rail joints having upwardly presented guards high enough to restrain side movement of the rail, yet low enough to permit the use of an angle bar joint without interference, and flanges extending upwardly and outwardly outside of ghe guards and beyond the limits of the angle ars.

8. A base plate for rail joints having upwardly presented guards eccentrically located in the Width of the plate, high enough to restrain side movement of the rail, yet low enough to permit the use of an angle bar joint without interference, and flanges extending upwardly and outwardly outside of ghe guards and beyond the limits of the angle ars. V

9. A base plate for rail joints having an upwardly presented guard high enough to restrain side movement of the rail, yet low enough to permit the use of an angle bar joint without interference, and flanges extending upwardly and outwardly outside of the guard and beyond the limits of the angle ROBERT FARIES.

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