US1347969A - Rail-anchor tie-plate - Google Patents

Description

w. M. 05B I RAIL AN CHOR TI TE.

APPLICATION FILED JUNE 5, 1920.

1,347,969, Patented July 27, 1920.

HHM 5 9 k I L UNITED STATESTPVATENT OFFICE.

WARREN M. osnonn, or CHICAGO, I' LInoIs AssIGNoP. T0 CHICAGO MALLEABLE cnsrmes oomrm, or .onrcaeo, ILLINOIS, a conronarron or ILLINOIS.

RAIL-ANCHOR TIE-PLATE.

To all whom it may concern:

Be it known that I, WARREN M. OSBORN,

residing 'at Chicago, in the county of Cook,

vices that' will prevent the rail from creeping longitudinally and fromspreading or tipping sidewise,'and also prevent the spikes which hold the rail upon the plate from becoming loosenedand from being throatcut at their neck portions.

The invention consists in the matters hereinafter described and then pointed out in the claims.

In the accompanying drawing, Figure 1 is a perspective view of one of the plates; Fig.2 is a view in cross section on the line 2-2 of Fig. 1 showing one of the plates with the rail in position thereon; Fig. 3 is a cross-sectional view on the line 33 of Fig. 1, and Fig. 4: is a detail view.

In the drawing the reference letter A represents the head of a rail, B its base, and C the web uniting the head and base.

The plate consists of the usual body 5 provided near one side with an abutment 6 which is interrupted by the spike holes 7 to receive the usual spikes which are driven into the underlying tie, the plate being pro-' vided with an upwardly projecting shoulder 8 at the outer margin of each spike hole to abut against the heel of the spike; as shown in Fig. 2, the inner faces of the shoulders are inclined so that the spikes are crowded against the rail base as they are driven to place.

The body is provided intermediate the spike holes 7 with an upwardly extending lug 9 which extends above the abutment 6 and has an inclined inner face which is practically an extension of the inwardly and downwardly inclined upper face of the abutment and is in line with the inner margins of the spike holes 7. The lug 9 is provided with a diagonal opening which is screw threaded to receive the set screw 10, the opening or passage in the lug being inclined from its outer face downwardly and inwardly toward its inner face where it extends through the abutment 6 adjacent the Specification of Letters Patent.

V Patented July 27,1920.

' Application filed'lune' 5, 1920. Serial No. 386,855.

rail base so that when the set screw is in position its inner end is in line with the upper edge of the rail-base as shown in Figs. 2 and 8. The inner end of the screw is casehardened and is cup-shaped or concave in cross-section to form a cuttinge'dge that bites intothe' relatively thin edge of the rail base when the screw is turned down to place. In practice the screw is case-hardened to a high'temper to the base line of its cuttingedge, thus providing a hard end to bite into the rail edge but leaving the threads of the screw soft and pliable so they? may be distorted more or less to interlock withthe threads of the. lug as hereinafter pointed out. a 1

The plate is provided near its opposite side with an overhanging flange 11 which preferably extends the full length of the plate to engage the corresponding side of the rail base, which makes a drive fit therewith. The plate is also provided with spike holes 12 out-side the base of the flange to receive the spikes for that side of the plate.

In practice, the plate is assembled on the rail base with its overhanging flange making a drive-fit therewith, and the spikes are then driven through the holes 7 and 12, so that one side of the rail base is beneath the overhanging flange 11 and its opposite side is in position along the abutment 6, with the spikes in the holes 7 heeled by the shoulders 8. The set screw 10 is then turned down to position as shown in Figs. 2 and 3.

The set screw bearing upon the upper edge of the rail base exerts both lateral and downward pressure on the rail to prevent both the lateral and the'tilting motion of the rail. It holds its own side of the rail against vertical or tipping movement so that the tendency of the rail to loosen the spikes in the holes 7 is obviated, and as it also holds its side of the rail against lateral movementit obviates the tendency of the rail base to spread and cut the throats of the spikes. opposite side of the rail base in its drive-fit under the overhanging flange and its end bites into the edge of the rail base, and so the screw increases the anti-creeping effect to resist. thelongitudinal creeping of the rails. The screw is headed for convenience of operation as shown, and after it is set down firmly in engagement with the base its thread is slightly deformed and 100 The set screw also holds the forced into locking engagement with the thread'oi thelug by the raising or tilting strain of the rail base, and the screw is thus locked in position and held againstloosem ing so that its pressure onthe rail is not re- 7 laXed. The set screw presenting lateral and] downward resistance, with the overhanging flange and the spike-heeling shoulders buttressing the spikes fasten the plate tight to;

the rail base, so that the base and plate form a practically unitary structure.

This application is a continuation part of my earlier application filed J uly 16, 19 19,

' bearing serial n11mber-311,302.

I claim: o 1; A device of the class described comprising a body having spike-holes, an overhangingflange for one side ofa rail base, a

lug opposite the flange and extending above the body and having a screw-threaded passage terminating in line with the upper] edge of the corresponding side of the rail base, and a set screw in the passage having its inner end abutting against and formed with a cutting-edge to bite into the I upper edge of the rail base. ,o

'2. A device of the class described com prising a body having spike-holes, an overhanging flange for one s de of a rail base,

shouldersat the outer margins of the spike-' "holes, a" lug opposite the flange and extending above the body and having an inclined screw-threaded passage terminating adjacent the corresponding side of the rail base, and a set screw in the passage abutting at the inner end against the upper edge of the rail base. i

3. A device of the class described comn'ising a body having spike-holes, shoulders at the outer margins of the spike-holes,-

, an overhanging flange for one side of a rail 1 WARREN OSBORN.

W'itnesses: I

J. MCROBERTS, HARRY S. HARNED.

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