US1625938A - Rail anchor - Google Patents

Description

. April 26,1927.

H. H. GIFFORD RAIL ANCHOR Filed Aug. 3.6. 1926 F" a4 4 I- INTENTOR HARRISON. airmen ATTORNEYS Patented Apr. 26, 1927.

UNITED STATES PATENT OFFIQE.

HAREISUN H. GIFFORDQOF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO HOLDEN COMPANY LIMITED, OF MONTREAL, CANADA.

BAIL ANCHOR.

Application filed August 16, 1926.

This invention relates to new and useful iu'iprovements in rail anchors, and the object of the'invention is to provide a simple and eflicient device which will prevent longitudinal movement or creepage oi' the .rails under traflic.

Another object is to provide a rail anchor which may be very easilyattached to the rail to hold same in place.

A further object is to provide means on the anchor to efficiently grip the sides of the base or flange of a rail and to contact with the ties to resist the stresses set up in the rail by the passage of traflic thereover.

A still further object is to provide an anticreeping device for permanent ways which will be economical in use and very easily manufactured.

In my invention I provide rail anchor having a main. body portion with upwardly turned hooks or jaws at each end, one oi said jaws being adapted to overlie one edge of a rail flange while the other jaw or hooked projection extends above the level of the rail flange on the other side thereof. Extending outwardly from the main body o'ilgthe anchor and at an angle oi approximately 85 thereto is the strut or tie contracting portion through which the forces, caused by traffic on the rail or by expansion or contraction, are transmitted between the rail and the tie. Thehooked projections of the main body portion are provided with recesses into which are placed inserts having teeth adapted to out into the rail flange to hold the rail in position. These inserts or toothed portions are preferably made of hardened steel and are inserted into the mould in which the body of the anchor is cast. The inserts being cast with the body are immovable in the recesses and the teeth are tempered or chilled so that they will cut into the rail flange when driven into rail engaging position.

In the drawings which illustrate one form of my invention;

Figure 1 is a plan view of my improved rail anchor.

Figure 2 is a side elevation of the device shown in Figure 1.

Figure 3 is an end elevation of the rail anchor shown in Figures 1 and 2.

Referring more particularly to the drawings, 11 designates the main body portion ot the anchor which extends from side to Serial No. 129 ,592.

side of the flange 12 of the rail 18. Formed integral with and on one side of the main body portion is the upwardly turned hooked projection or jaw lat whichis adapted to overlie or embrace part of the edge of the rail flange. Formed integral with and on the other side of the main body portion is the upwardly turned hooked projection or jaw 15, the inner edge 16 of which is made in the form of an arc to allow easy manipulation of the device when attaching it to the rail. Reccsses 17 are formed in the jaws and in said recesses are cast the inserts 18, the edges 19 of which contact with the edges of the rail flange. The edges 19, which are made in the form of an are are serrated or are provided with teeth 20 which, when driven against the ail, cut into same and term an eiflcient means for locking the anchor in position. The inserts or the toothed portions of same are preferably made of a metal harder than the rail, so that they will cut into the flanges. The recesses are preferably made as shown, that is of dovetailed cross section so that the inserts are locked in the anchor. Projecting outwardly from the side 21 of the anchor and cast or formed integral therewith is the tie contacting portion or strut 22, the main web 22) of which is preferably disposed at an angle of approximately 85- to the surface 21 as shown, so that when the anchor is driven into position the web 23 will lie parallel to the rail and transmit the forces which occur between the rail, and the tie, in a direct line parallel to the longitudinal axis of the rail.

The face 2-1 01 the strut 22 is made in the form of an arc to facilitate securing the anchor to the rail base with the strut contacting with the tie. The strut may be reinforced by the ribs 25 to strengthen it. In the drawing, the main body portion of the anchor is made of channel shaped cross section suitably ribbed to strengthen same, but this may be modified without departing from the spirit oi the invention. Parts 26 and 27 ot the main body portion near the hooked projections or jaws may be formed to contact with the bottom 28 ot' the rail and the part 26 may be provided with an extension 26 to form a guide and a steadying means when driving the anchor into position.

In operation, the anchor is placed on the under side of the bottom of the rail with one hooked projection or jaw overlying one or the flanges and with the strut engaging with the adjacent tie. lhe other jaw portion extends above the rail flange on the side of the rail remote from the strut. The anchor is supported manually and is then driven into position by light hammer blows delivered on the side of the anchor remote from the strut and the tie with which it contacts. The anchor at this point in the operation of attaching it to the rail has its side angularly disposed to the side of the tie. The light blows force the said end of the anchor towards the tie and the tendency for the anchor to spring back or away from the tie forces the teeth against the edges of the rail flange so that they out thereinto and look the anchor in position, lit will be readily seen that a device constructed in this manner may be easily nmnu'hictured and easily applied to rails to prevent creeping of same through any of the well known causes. It will, also, he seen that once the device is secured to the rail there is very little danger of the anchor becoming loose through vibration of the rails as the tendency of the teeth under loosening movement is to bite into the rail and form a. good grip thereon. The device once applied needs very little attention and is, therefore. very economical in use when com mrcd with the rail anchors usually employed.

Having thus described my invention, what I claim is 1. A rail anchor comprising a single castng extending in the transverse direction of .he rail. and contacting with the base thereof, said casting having upwardly project ing portions, one of which is grooved so that its uppermost edge overlies the rail. base, metallic inserts fitting snugly into recesses formed in the projections and surrounded by metal comprising same, so that there is no relative movement between them, said inserts having teeth which contact with each side of the rail flange and bite into same to hold the anchor in position.

2. A rail anchor comprising a single cast ing adapted to extend transversly of the rail and provided with an upwardly projecting portion at each end, extending above the rail flange, one of said projections being grooved to allow part of same to overlie the rail flange and dovetailed recesses in said projections adapted to receive and hold in position inserts, the edges of which, adja cent the rail flange, are serrated to bite into the rail when driven thereon.

A r-ail anchor comprising a single casting adapted to embrace the edge of the rail on one side and project above said flange on the other side, and metallic inserts of harder material than said rail cast into said anchor and surrounded by the cast metal formin the main body of the anchor, said inserts iaving the surfaces contacting with the rail curved in the form of an arc and provided with toothed projections which cut into the rail flange to hold the anchor in position.

4-. A rail anchor comprising a single cast ing extending from side to side of a rail and provided with upwardly projecting portions, one of which is adapted to embrace the edge of the rail base, while the other is adapted to extend above said base and is curved in the form of an arc, metallic inserts fitting into dovetailed recesses in said projections, said inserts having toothed projections adapted to cut into the flanges of the rail, and means projecting outwardly from one side of the anchor to contact with a railroad tie adjacent the point. where the anchor is secured.

In witness whereof, I have hereunto set my hand.

HARRISON H. GIFFORD.

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