US439352A

US439352A - Charles a

Info

Publication number: US439352A
Authority: US
Publication date: 1890-10-28
Anticipated expiration: 1907-10-28

Description

(No Model G. A. HARVEY. RAILWAY TRACK FASTENING. No. 439,352. Patented 001:. 28', 1890.

Q vih mooeo UNITED STATES PATENT OFFICE.

CHARLES A. HARVEY, OF NEW YORK, N. Y.

RAI LWAY-TFAC'K FASTEN l N G SPECIFICATION forming part of Letters Patent No. 439,352, dated October 28, 1890. Application filed February 26, 1890. Serial No. 341,847. (No model.)

in the art to which it appertains to make and use the same.

My invention is'an improvement in trackfastenings; and it consists in the novel features of construction and combination hereinafter fully described, reference being had to the accompanying drawings.

In the said drawings, in which I have illustrated one form in whichI have contemplated embodying my invention, Figure 1 is a perspective view of a portion of a rail and tie,

showing my improved fastenings in position. Figs. 2, 3, and 4 are detail perspective views of the parts of my improved fastening, and Fig. 5 is a similar view of the part shown in Fig. 3 inverted.

In the drawings, A represents a metallic tie of any preferred construction. It is shown in this instance as provided with a recess a, to receive the foot I) of a rail B; but it may have a plain face, if desired. The tie A is provided at points at each side of the foot of the rail with suitable apertures a to receive the bolts 0. There may be any desired number of fastening devices for each tie, as found 3 5 most convenient and effective. I have shown in this instance the tie A provided with two of the devices engaging each side of the rail B; but a different arrangement could be employed by providing the tie with the requisite number of holes a in proper positions.

The bolt 0 consists of a shank provided with a toe 0, extending forwardly and engaging the under surface of the tie A, a heel 0, extending rearwardly and engaging the upper face of the tie, and a head 0 projecting forward over the foot of the rail. The under face of the head 0 is inclined downwardly from front to rear and from one side of the bolt to the other, as clearly shown in Fig. 2,

5:: thus forming an inclined groove or recess.

The under surface of the head (2 might be curved instead of straight, if desired.

I provide a block D, which has an upper face beveled or inclined from front to rear and from one end to the other, adapted to engage and fit the inclined recess of the head of the bolt, the block being provided at one or both ends with an upwardly-extending lug or projection 01, .as shown in full and dotted lines, Fig. 3, to engage the head of the bolt. The block D is of greater depth at one end than at the other, forming a wedge, and its under surface is grooved or concaved for a portion of its length, as shown at d in Fig. 5. At the larger end of the block is located a separating device or wedge-shaped projection d for a purpose hereinafter set forth, and the edges of the block at each side of this separating'device are cut away, forming recesses 1 I also provide the split wedge or key E, (shown in detail, Fig. 4,) which is driven between the block'D when in its proper position in engagement with the head of the bolt and the foot of the rail, thereby tightening the parts. This key or drive-wedge is of slightly-increasing thickness from one end to the other in a direction opposite to the taper of the block D, so that as the wedge is driven home the two parts will coact with the effect of double inclines to tighten and secure the foot of the rail. The wedge F on its upper side is fitted to the shape of the grooved or concave surface ofthe block, and the thinner end of the same is split to a point at or beyond the center of the wedge, and the two points e 6 so formed are beveled, as shown at e, to enable them to properly engage the separating device (1 on the under face of the block.

When it is desired to secure a'rail in position by my improved device, the bolt B is placed in proper position, as before described,

and the block D placed in engagement with the under face of the head 0 The key or drive-wedge is then made to engage the concave surface of the block and driven in between the foot of the rail and the block D. As the wedge is driven in the points e 6 will come into contact with the separating device d and be spread apart, as shown in dotted lines ,Fig. 4c, and will protrude through the recesses 01 d of the block, as shown in Fig. 1. The block E is preferably made from wroughtiron or other malleable material, which will permit the points to be spread apart in the manner described. The block D may, if desired, be made of cast-iron or other suitable material.

It will be seen that the spreading apart of the points 6 6 through the notches (Z (Z will effectually prevent the key or wedge from becoming loose or accidentally displaced. The inclined construction of the head of the bolt and upper face of the block, and the engagement of the convex face of the key with the concave lower face of the block, render it impossible for the parts to slip or loosen and move laterally, and a perfectly tight and secure fastening for the rail is secured.

When it is desired to release the device, the ends of the points e :2 may be cut off with a cold-chisel or other device and the key driven out by means of a projection e at its head, or one or both of the lugs (Z on the block D may be broken off and the entire device be driven out from under the inclined head 0 of the bolt. Itis obvious that where the block D is provided with only one lug (Z it should be on the end adjacent to the lower edge of the inclined inner face of the head 0 of the bolt.

hat I claim, and desire to secure by Letters Patent, is

1. A railway-track fastening consisting of the securing-bolt having a rigid head and rigid toe, the block adapted toengago the head of the same and provided with a separating device, and the split wedge adapted to engage said separating device, whereby an object may be clamped by said wedge and block between the head and toe of the bolt, substantially as described.

2. A railway-track fastening consisting of the securing-bolt, the block adapted to engage the head of the same, said block being provided with a groove on its under side, a split drive-wedge adapted to engage said groove, and a separating device on said block adapted to be engaged by said wedge, substantially as and for the purposes set forth.

3. A railway-track fastening consisting of the securing-bolt having its head provided with a groove or recess, a block having a face adapted to engage the said groove or recess, said block having a concave under surface and provided with a separating device, and a split drive-wedge provided with a convex surface, substantially as described.

4. A railway-track fastening consisting of the securing-bolt having its head provided with an inclined groove or recess, a block engaging said inclined groove or recess, and provided adjacent to one end with a log or projection engaging the head of the bolt, and a split drive-wedge, said block being provided with a separating device adapted to be engaged by said wedge, susbtantially as described.

5. A railway-track fastening consisting of the securing-bolt, the block engaging the head of the same, having its under side provided with a concave portion, and a separating device adjacent to the edges of said concave portion forming the recesses 61 and a split drive-wedge adapted to engage said separating device and recesses, substantially as described.

6. A retaining device for a railway-track securing-bolt, consisting of the block having its under face grooved and provided with a separating device, and a split drive-Wedge fitting said groove and adapted to engage the separating device, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES A HARVEY.

Witnesses:

C. H. IIIGBEE, E. R. E. SoHULZ.