US809987A - Tie-plate. - Google Patents

Description

PATENTED JAN. 16, 1906.

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TIE PLATE APPLICATION FILED MAY 18, 1905.

No. 809,987. PATENTED JAN. 16, 1906. J. M. SELLERS. TIE PLATE.

APPLIOATIQN FILED MAY 18, 1905.

' 2 SHEETS-SHEET 2- UNITED STATES ATENT OFFICE.

JOHN M. SELLERS, OF CHICAGO, ILLINOIS, ASSIGNOR TO SELLERS MANU- ILLINOIS.

TIE-PLATE.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application file-l May 18, 1905. Serial No. 260,938.

To all whom, it may concern;

Be it known that I, J OHN M. SELLERS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Iniprovements in Tie-Plates, of which the following is a specification.

My invention relates to improvements in railroad tie-plates, and has for its object the furnishing of a tie-plate so constructed as that the undulations of the rails under pressure will only serve to seat the plate more securely on the tie.

A further object is to provide such a plate which is adapted for use on curves.

These and such other objects as may hereinafter appear are attained by my invention, an embodiment of which is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of my tieplate. Fig. 2 is a sectional View on the line 2 2 of Fig. 1 looking in the direction indicated by the arrows. Fig. 3 is a sectional flew on the line 3 3 of Fig. 1 looking in the direction indicated by the arrows. Fig. 4 is a crosssection of a rail and tie-plate in position in the track. Fig. 5 is a cross-section of a modification and Fig. 6 is a sideelevation of a rail roadtrack, showing tie-plates in position.

Like letters of reference indicate the same parts in the several figures of the drawings.

Referring by letter to the accompanying drawings, A indicates a tie-plate having two converging faces a a, meeting, preferably, ln the center of the plate on the line B B. C indicates a flange, and D D the bolt-holes. The faces of the plate may also slope downwardly and inwardly from the flange, as shown in Fig. 3, and the plate is of a greater thickness at the flange E than at the end E.

In Fig. 5, A indicates a modified form of my plate, in which the plate is crowned, but not tapered transversely.

With the tie-plates now in use the undulations of the rails caused by the passage of trains rock the plates and cause them to cut into the tie, thereby admitting moisture and breaking the protected surface of creosoted ties, besides furnishing an unstable rest for the rails and tending to work the spikes loose. Referring to Fig. 6, F F indicate crossties, upon which rest a section of rail G, and a portion of a Wheel is shown at H. l/Vhen the thrust that is distributed over the entire surface of one face of each plate. At no time during the passing of a load over the rails is the pressure exerted merely at one point outside the center of the plates.

The use of my improved crowned plate prolongs the life of the rail, as well as effecting a great saving in track maintenance, doing away, as it does, with the incessant pounding of the plate on the tie and the consequent loosening of the tie in the ballast.

While I have illustrated two embodiments of my invention, other forms are possible without departing from the spirit thereof.

I claini l A tie-plate formed with a crown extending transversely of the rail, bearingfaces sloping in opposite directions from said crown to opposite edges of the plate, and a continuous rail-retaining flange extending transversely of said crown and provided with a continuous vertical face adapted to engage the edge of a rail-flange to prevent lateral displacement of the rail.

2. A tie-plate formed with a crown extend- JOHN M. SELLERS.

lVitnesses F. H. DRURY, M. E. SHIELDS.

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