US1720578A - Combined rail anchor and tie plate - Google Patents

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July 9, 1929- o. J. suRPRENANT 5T A. 1.720.578

COMBINED RAIL ANCHOR AND TIE PLATE v Filedmaroh s, 1929 will b'. uanraaa Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

OSCAR J. SURPRENANT yANI) HENRY B. BACHRACH, 0F SCHENECTADY, NEW YORK.

COMBINED RAIL ANCHOR AND TIE PLATE.

Application filed March 28, 1929.

It is present practice in the mostapproved railroad track construction for the tie plate to be fastened to the wooden cross tie by screw spikes. The tie plate is held in place by cut steel spikes driven into the.tie and extending through holes punched in the tie plate. The rail is kept from running or creeping by rail anchors clamped on to the base of the rail at varying intervals so as to bear directly against the side of the cross ties. These rail anchors are effective in but one direction. rI'he cut spikes gradually work out due to the wave motion of the track under traffic, lose their holding power and from constant redriving, the wooden ties become what is known as spike killed, that is the fibres of the tie are cut through so that eventually the tie rots and breaks at this point. Furthermore, the cut spikes do not hold the rail tightly enough against the tie plate to prevent the tie plate from wearing rapidly.

The combined rail anchor and tie plate which forms the subject-matter of this application is designed to hold the rail firmly down upon the tie plate and the tie plate firmly down upon the tie without the necessity of using cut spikes while the Y anchoring means, which is interlocked with the tie plate, acts to hold the rail against movement in either direction, thus entirely eliminating they necessity of using cut spikes.

Our invention is illustrated inthe accompanying drawings, wherein Figure 1 is a top plan view of our rail anchor and of the rail placed upon the tie;

Figure 2 is a top plan View of the rail supporting plate;

Figure 3 is a sectional view on the line 3-3 of Figure 1;

Figure 4 is a section on the line 4-4 of Figure 1; I

Figure 5 is a fragmentary section showing a slight modification as regards the engagement of the plate with the rail.

Referring to these drawings, 10 designates the usual wooden tie and 11 the metal tie plate mounted thereon. This tie plate is formed on its middle line with a recess 12 defined by the shoulders 13, which recess has a width exactly the same as that of the base of the rail 14. One of these shoulders 13 may be made so as to overhang the base of the rail, but preferably neither of the shoulders will overhang the base of the rail. The tie plate 11 at its middle extends beyond the side edges Serial No. 350,726.

of the tie and preferably both ends of this projecting portion of the tie plate are slotted or cut away as at 15, these slots extending inward from the side edges of the extension of the tie plate and being adapted to receive upwardly projecting portions of one or more rail anchors 16.

Each rail anchor has a portion extending transversely across and beneath the extension of the tie plate, this portion at one end being lormed'with the upwardly projecting lug 17 and at its opposite end the rail anchor is bent downward as at 18, then upward at 19 and transversely at 20 so that the portion 20 will bear against the upper face of the base of the rail 14. rl`he curve given to the parts 18 and 19 causes this portion of the anchor to be somewhat resilient and to exert a downward pressure and clamping action upon the upper face of the rail. The portion 17 and portion 19 extend upward into the slots 15 and thus cach anchor is held from longitudinal movement with relation to the tie. The tie plate is apertured at a plurality of points with holes for the reception of the screw spikes 21. but no cut spikes are used to hold the rail plates as the rail is held in place by the anchors 20 which cannot come ofi" because they are disposed within the slots 15. It will be noted from Figure 4 that the anchor at one end of the tie plate is reversed with relation to the anchor at the other end of the tie plate.

When the rail is put in place upon the tie plate, the anchors are driven on transversely of the tie plate until the lug 17 springs up into the corresponding slot 15 when the portion 19 is forced into the opposite slot 15 as shown. The rail anchor holds the rail rigidly in place on the tie plate, eliminating entirely the use of cut spikes. The rail anchor is made of spring steel and is readily driven into place and locked in the slots provided in the extended portion of the tie plate.

The bent end of the rail anchor is expanded in forcing it on to the rail so that it exerts great pressure on the base of the rail and 4the friction exerted between itself, the base of the rail and the tie plate holds the rail from running or creeping and inaslnuch as the rail anchor is disposed in a slot on each side of the tie plate, the rail anchor is particularly effective in prevent-ing the rail from creeping in either direction.

This construction which we have devised can be manufactured and installed at a rea- 2 imams sonable cost and will save spikes, cross ties and the consequent expense of maintenance. This combined rail anchor and tie plate eliminates track spikes, increases the life of the wooden cross ties, decreases the wear between the rail and tie plate, prevents the rail from running or creeping in either direction, and improves t-he general track conditions.

We have illustrated the bottom of the recess 12 as being slightly canted or at an angle to the bottom of the tie plate, but obviously we do not wish to be limited to this.

We claim l. A combined tie plate and anchor, the tie plate having- .shoulders upon its upper face between which the base ot a rail may be disposed, the tie plate having means whereby it may be attached to a tio, the tie plate having extensions at opposite ends, the lateral margins or' the said extension being slotted and a rail anchor extending beneath the extension and having at one end an upwardly extending'lug engaging one of said slots and at its other end having an upwardly and inwardly extending clamping portion adapted to extend upward through the other of said slots and over the base of the rail andclainpingly engaging the same, said anchor being somewhat resilient.

2. A combined tie plate and rail anchor comprising a tie plate adapted to rest upon a tie and formed with opposed shoulders betweenkwhich the base ot' a rail may be disposed, the tie plate having openings through which screw spikes may be passed and the tie plate at one end being extended to project beyond the tie, the opposite margins ot said extension being slotted, and an anchor of resilient metal, the anchor being formed with a portion adapted to extend beneath the extension ot the tie plate, one end ot the anchor portion having an outwardly extending lug to extend in one of said slots, the other end of t-he anchor being downwardly, upwardly and inwardly and downwardly curved to extend up through the other of said slots and resiliently bear against the upper face of the base of the rail.

3. A tie plate adapted to rest upon a tie and having the middle portion thereof extended in opposite directions to project beyond t-he tie, said extensions each being formed at its opposite margins with inwardly extending slots, an anchor associated with each of said extensions, each anchor having a portion adapted to extend beneath theV tie plate and at one end being formed with an upwardly extending lug to interlock in one oi said slots and at the other end being downwardly, upwardly and inwardly curved to extend upward into the other of said slots, and resiliently bear against the upper' face of a rail disposed on said tie plate.

4. A tie plate having opposed shoulders between which a rail may be disposed and having means whereby the tie plate may be held to the tie, ythe tie plate having a slot extending inward from one side edge of the plate, the opposite side margin of the plate having an upwardly extending recess, and a rail anchor having a portion adapted to extend beneath the tie plate and at its end being formed with an upwardly extending lug to interlock with and snap into said recess when the anchor is applied, the other end of the anchor being curved to extend upwardly through said slot and then upward and inward whereby to have a resilient wet ging engagement against the upper face of a rail disposed upon the tie plate.

ln testimony whereof we hereunto atiix our signatures.

OSCAR J. SURPRENANT. HENRY B. BACHRACH.

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