US2003747A - Chock - Google Patents

Description

June

CHOCK Filed Aug. 15, 1954 l5 Loni/195.176.5349

Gum/ 4 Patented June 4, 1935 UNITED STATES PATENT OFFICE CHOCK Fla.

Application August 15, 1934, Serial No. 740,017

1 Claim.

This invention relates to a chock designed for use on a track rail for the purpose of preventing cars from rolling out of position accidentally.

It is an object of the invention to provide a light but durable and emcient chock which can be readily locked to a rail so as to prevent its removal by unauthorized persons and which can also be easily carried from place to place by the user.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing Figure 1 is a view partly in side elevation and partly in section showing the chock in use.

Figure 2 is a section on line 2--2, Figure 1.

Figure 3 is a perspective view of the filler block and its wear plate.

Referring to the figures by characters of reference, I designates a block formed preferably of hard wood and provided with a fiat base 2 adapted to rest snugly upon the top of a rail R. The back end of this block has a short vertical face 3 while the front end is formed with an upwardly and forwardly inclined face 4. Another upwardly and forwardly inclined face 5 is extended from the back face 3 and terminates at the upper end 35 of a concave front face 6 the lower end of which terminates at the face 4.

The front face 6 has an arcuate wear plate I detachably secured thereto by screws 8 or the like and the curvature of this plate as well as of 40 the corresponding face 6 of the block corresponds with the curvature of the tread of a wheel W to be held.

Block I is cased within a sheathing 9 of steel or other suitable sheet metal, this sheathing being fitted snugly against the side face of the block and also against the faces. 3, 4 and 5. The sheathing is held to the block by bolts or rivets I 0 extending transversely therethrough.

Extending downwardly from the sides of the sheathing are integral wings H adapted to engage the sides of the head of the rail. These wings diverge downwardly so as to straddle the base of the rail below which they extend as shown. The wings are so proportioned as to fit between adjoining ties T supporting rail R and both wings have openings l2 adapted to receive a wedge l3. One end of this wedge can be connected to one 10 of the wings by a chain l4 while the other end is adapted to be secured by a lock l5 whereby withdrawal of the wedge is prevented.

A handle I6 is joined to the top of the sheathing as shown and by means thereof the chock can 1 be conveniently carried from place to place by the user.

When it is desired to place the chock in position the wedge I3 is removed and the base 2 of the chock is placed on the rail while the wear plate I is placed against the tread of wheel W.

As the wings H straddle the rail R the wedge 13 can be inserted under the rail and fastened to the two wings so as thus to prevent the chock from 25 being removed from the position in which it has been set.

It has been found in practice that a chock made as herein described is not only light and easily carried but is quite strong and meets all of the requirements. Furthermore it can be locked quickly to the rail and by providing wings which extend between the ties, sliding of the chock along a rail is prevented and unauthorized removal of the chock is also prevented.

What is claimed is:

A chock including a block having a base, upwardly and forwardly inclined top and bottom faces and a concave end face, an arcuate wear plate secured to the concave face for contact with 40 the tread of a wheel, a metal sheathing upon the side, top and bottom faces of the block, wings integral with the sheathing for straddling a rail and extending between supporting ties, and means detachably engaging the wings below the level of a rail for detachably securing the chock to a rail.

LORING B. HESTER.

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