US1005410A - Anticreeping device for railroad-rails. - Google Patents

Description

APPLICATION FILED FEB. 13, 1911.

Patented Oct. 10,1911.

I yen/Zoe:

' 0 l rneyd UNITED STATES PATENT OFFICE.

JAMES BURKE, F CLEVELAND, OHIO.

ANTICREEPING DEVICE FOR RAILROAD-RAILS.

Specification of Letters Patent.

Patented Oct. 10, 1911.

Application filed February 13, 1911. Serial No. 608,228.

which it appertains to make and use the l 1 means for attachlng the plate to the tie also This invention relates to new and useful same.

improvements in anticreeping devices for rallroad rails.

The ob ect of this lnventlon is to provide a device for preventing the creeping of rails in the direction of their length due to the action of the wheels of passing trains which will be simple and cheap in construction, effective in operation, which will not be loosened by vibration and which can be very easily attached to the rail or removed therefrom.

My invention therefore consists of the provision of a tie plate having arranged thereon a gravity controlled locking member which is adapted to engage with the base flange of a rail in such a manner that any creeping or longitudinal movement of the rail will cause the locking member to bite into the rail and the more firmly engage the base flange thereby positively preventing any perceptible longitudinal movement or creeping of the rail.

My invention further consists in providing a novel mounting of the locking member by means of which the locking member can be arranged to oppose the creeping of the rail in either direction and which also permits the locking member to be disengaged from its mounting when desired, as in case the locking member becomes worn and has to be renewed.

My invention also consists in the features of construction and combination and arrangement of parts described in the specification, pointed out in the claims and illustrated in the accompanying drawings, in which I have shown the preferred embodiment of my invention, but I do not desire to be limited to the precise arrangement and construction shown.

Referring to the accompanying drawings Figure 1 is a top plan showing my invention applied to a rail. Fig. 2 is a side elevation of the same. Fig. 3 is a section on line 33, Fig. 2.

Again referring to the drawings 1 designates a railway tie of the usual construction and 2 represents a rail. Between the tie and the rail is arranged a metal plate 3 which is provided 011 its under surface with projections or ribs 3 which are adapted to engage with and extend into the tie so as to assist in holding the plate in position on the tie and the said ribs 3 in addition to forming a reinforce the plate and prevent the same from buckling or bending along the side edges thereof. The plate 3 is further secured to the tie by the usual spikes t and is designed to take the place of the ordinary tie plate, and also forms the base of my improved anticreeping device which is arranged as follows :At one side of the plate 3, and preferably formed integral therewith, is a small vertically arranged standard 5, and at its upper end is formed an arm 7 which extends inwardly over the base flange of the rail a short distance above the same. On the inner end of said arm 7 is formed a retaining lug or projection 8. The locking member shown at 9 is provided at its upper end with a key-hole shaped opening 10, the round portion of said opening being of the proper size to snugly receive the vertical arm 7 so that the said locking member can swing freely on the end of saidarm, and the small portion of said opening permits the projec tion 8 on the end of the arm to pass therethrough so that the said locking device is held against accidental displacement from the end of said arm, but can be readily disengaged therefrom when desired. The lower end of said locking member 9 is cam shaped and is adapted to abut against the base flange of the rail, the curvature of the cam being such that any creeping of the rail will cause the cam to grip all the tighter on the flange. The fact that the locking member is suspended so that it is free to swing vertically insures the locking member always being in contact with the rail flange as the weight of the locking member causes it to seat itself and the more jarring it receives the greater is the tendency of the locking member to work down into engagement with the base flange of the rail. The cam face of the locking member may be serrated if desired so as to increase the frictional engagement thereof with the flange.

Theoperation of the device is as follows: The plate 8 is secured to the tie beneath the rail in the usual manner with the standard 5 thereon extending up at one side of the rail, and with the arm thereon extending inwardly over the base flange. The locking member is then hung on the arm and the cam face thereof rests against the base flange of the rail, andthe member is inclined opposite to the direction in which the rail has a tendency to creep and therefore the creeping of the rail will tend to force the member in under the arm 7, but as the distance from the arm to the base flange is less than the length of the locking member the more the rail creeps the tighter the locking member will engage the flnage.

hat I claim is,

1. In a device of the character described, a tie plate arranged to extend between a rail and a supporting tie, means for securing said plate to the tie, a vertical standard arranged on said plate and a locking member pivotally supported from said standard so as to swing vertically therefrom, said locking member being provided with a cam face adapted to engage the upper surface of the base flange of the rail.

2. In a device of the character described, a tie plate arranged to extend between a rail and a supporting tie, said plate being provided with a series of strengthening ribs formed on the under surface thereof adapted to engage with the tie, means for securing said plate to the tie, a vertical standard arranged on said plate and a locking member pivotally supported from said standard so as to swing vertically therefrom, said locking member being provided with a cam face adapted to engage the upper surface of the base flange of the rail.

3. In a device of the character described, a tie plate arranged to extend between a rail and a supporting tie, means for securing said plate to the tie, a vertical standard arranged on said plate, a horizontally arranged arm formed at the top of said standard and extending in over the base flange of the rail, and a locking member pivotally supported on said arm so as to swing vertically, said locking member being provided with a cam face adapted to engage the upper surface of the base flange of the rail.

4. In a device of the character described, a tie plate arranged to extend between a rail and a supporting tie, means for securing said plate to the tie, a vertical standard arranged on said plate, a horizontal arm formed at the top of said standard and eX- tending in over the base flange of the rail and provided at its end with a stop forming lug and a locking member having a key-hole slot adapted to receive said arm and provided with a cam face adapted to engage the upper surface of the base flange of the rail.

In testimony whereof, I sign the foregoing specification, in the presence of two witnesses.

JAMES BURKE. IVitnesses VICTOR O. LYNCH, N. L. MCDONNELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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