US1862520A - Railroad tie plate - Google Patents

Description

June 14-, R FARlEs RAILROAD TIE PLATE Filed March 51f 1931 -2 Sheets-Sheet l INVENT'OR: Eofierz'f Tamas,

BY M

- I ATTORNEYS.

' ITNESSES June 14, 1932. R. FARIES RAILROAD TIE PLATE Filed March 31, 1931 2 Sheets-Sheet 2 4 t IN VEI\{ TOR.- Boberi farz'es TTORNEYS.

Patented June 14, 1932 ROBERT FAR-IE8, OF ST. DAVI DS, PENNSYLVANIA RAILROAD TIE PLATE Application f led March 31, 1931. Serial No. 526,650.

This invention relates to tie plates used in railways to directly support the track rails on the ties.

The customary practice heretofore has been to secure the rail support tie plates by spikes driven down through corner apertures in them into the ties. Due to the lateral thrust communicated to the rails bypassing trains, the spikes would become loose after a time and thus permit the tie plates to creep and the rails to spread. This has ordinarily been corrected by extracting the spikes, plugging the holes in the ties, and, after re-settin of the rails and the plates, re-driving the spi es. Repetition of this operation however, soon resulted in what are known as spike-killed ties which had to be re-placed at a considerable outlay for material as well as for labor which materially affected the costs of road maintenance.

My invention has for its primary object to overcome the various drawbacks of previous practice to which attention is directed above, through embodiment in the tie plates, of provisions, which, in conjunction with securing means adapted to engage the tie at pre-allocated points, will positively preclude creeping of the plates, and which,

on the other hand, will admit of being readily removed and restored to enable replacements to be made or for other reasons, without in any way entailing injury to the ties.

A further aim of my invention is to provide means operative to automatically draw 1 the tie plates firmly into contact with the top faces of the ties incident to drawing up of the securing means therefor.

Other advantages, inherent to this invention will be manifest from the following de- 0 tailed description in coordination with the attached drawings, wherein Fig. I is a fragmentary plan view of a railroad track showing one of the rails, and a tie plate convenr, iently embodying the present improvements.

Fig. II is a cross section taken as indicated by the arrows IIII in Fig. I.

Fig. III is a detail sectional view taken as indicated by the arrows IIIIII in Figs. I and II.

Figs. IV and V are illustrations corresponding to Figs. I and II showing an alternative embodiment of my invention.

In Figs. I-III of these drawings, my improved tie plate is comprehensively designated by the numeral 10, the same having the customary rectangular configuration, it being however preferably made of the same width throughout as the tie indicated at 11, instead of narrower as ordinarily. The tie plate 10 provides a central supporting surface 12 for so the track rail 13, as well as transverse retaining ridges 141 to engage the edges of the base flange 15 of the rail.

At or near its corners,

the tie plate 10 is formed with depending projections or lugs 16 which are adapted to lap 5 the sides of the tie 11 as shown in F ig. III.

Also as shown in Fig. III, the lugs 16 are provided with vertically elongated apertures 17 for passage of securing means in the form of headed screw bolts 18 which extend con- 7 tinuously through pre-allocated horizontally drilled holes 19 in the tie 11 with a snug fit. Associated with the bolts 18 are washers 20 which are placed respectively behind the bolt heads 21 and nuts22 engaging the threaded ends of the bolt shanks. As shown in Fig. III, the washers 20 are beveled at 23 to correspond with bevelled edges 2% at the bottoms of the apertures 17 in the depending corner lugs 16 of the tie plate. '22 are tightened, it is evident that the tie Thus, as the nuts plate 10 will be drawn firmly down onto the top surface of the tie 11 due to the cooperative wedging action between the bevels 23, 24 of the washers 20 and the lug apertures 17 For assurance of accuracy and also to save time in track construction, the holes 19 are drilled at the'factory or mill incident to planing and shaping of the tie 11.

It therefore follows that the position of the rail plate 10 on the tie is definitely predetermined, and

that when once secured in place with'the bolts 18 tight, the rail plate cannot possibly creep under the lateral thrust imparted to the rails by passing trains, because of the snug fit of the bolts within the holes 19. Shifting of the plate 10 crosswise of the tie 11 is on the other hand precluded by virtue of the lap of the depending lugs 16 down over the sides of the ties.

The described arrangement is further advantageous in that it permits assembling and disassembling of the parts for the purpose of rail or other replacements without incurring injury to the ties.

In the modified embodiment of my tie plate shown in Figs. IV and V, one end, preferably the inner end or that to the inside of the rail 13a, is plain, i. e. without the corner lugs of the previous embodiment. Instead, holes are drilled at 25, near the aforesaid plain end of the plate 10a for passage of lag screw bolts 26 downward into the tie. The opposite end of the plate 10a is however constructed like the plate illustrated in Figs. I and II, and, in order to dispense with repetitive description, the same reference numerals are here employed, each with the subscript a, to designate the corresponding parts. As before, the hole 19a for the horizontal or through bolt 18a is, in each instance, pre-allocated and drilled at the factory or mill and thus definitely predetern'iines the position of the plate 16a on the ties incident to laying of the track. In the modification, the lag bolts 26 are relied upon to fasten the plain end of the plate 10a; while the through bolt 18a serves, with the cooperation of the bevel washers 20a, to draw the opposite end of the plate firmly down onto the top face of the tie incident to tightening, and to thereafter hold the plate securely against displacement by lateral thrust of the rail 13a. The merit of the modification is that it admits of somewhat cheaper manufacture than the first described embodiment.

Any suitable means, such as spikes extending down through openings in the tie plates 1 and into the ties, may be employed in connection with either of the two illustrated embodiments of my invention, to anchor the track rail.

Having thus described my invention, I claim:

1. The combination of a tie plate with depending corner lugs adapted to lap the side faces of the tie; securing means passing through apertures in the tie plate lugs and extending horizontally into the tie; and means operative incident to tightening of the securing means to draw the tie plate firmly down onto the top surface of the tie.

2. The combination of a tie plate with depending corner lugs adapted to lap the side faces of the tie, the said lugs having bevel edged apertures; headed securing screw bolts passing through said apertures and horizontally into the tie; and bevel edged washers interposed behind the heads of the said bolts and adapted to cooperate with the bevel edges of the lug apertures to draw the tie plate firmly down into contact with the top surface of the tie incident to tightening of the said bolts. 1

3. The combination of a tie plate with depending corner lugs adapted to lap the side firmly down into contact with the top surface of the tie.

4. A rail tie plate apertured at one end for passage of securing means down into the tie, and having corner lugs at the opposite end adapted to lap the side faces of the tie; securing means passing through apertures in the lugs and extending horizontally into the tie; and means operative incident to tightening of the securing means to draw the corresponding end of the tie plate firmly into contact with the top surface of the tie.

In testimony whereof I have hereunto signed my name at Philadelphia, Pennsylvania, this 28th day of March, 1931.

ROBERT FARIES.

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