US2204941A - Scotch for mine cars - Google Patents

Description

June 18, 1940. c MEAD 2,204,941

SCOTCH FQR MINE CARS 7 Filed June 12, 1939 2 Sheets-Sheet 1 Inventor I CTHTMZQQCZ v '1 By June 18, 1940. c. H. MEAD 2,204,941

sco'rcn FOR NINE cAns Filed June 12, 1939 2 Sheets-Sheet 2 Inventor Mead A iiorneys Patented June 18, 1940 PATENT OFFECE SCOTCH FOR MINE CARS Charles H. Mead, Beckley, W. Va.

Application June 12,

2 Claims.

This invention relates generally to mine car scotches of a type generally similar to that constituting the subject matter of my allowed application Serial No. 247,539, filed on December 23, 1938, now Patent No. 2,164,999, issued July 4, 1939, upon which the present device constitutes an improvement.

An important object of this invention is to provide, in a manner as hereinafter set forth, a scotch of the aforementioned character comprising novel means for gripping a rail.

Another very important object of the invention is to provide a mine car scotch of the character described which is adopted. to function on wide gauge tracks.

Other objects of the invention are to provide a mine car scotch of the character set forth which will be comparatively simple in construction, strong, durable, highly efiicient and reliable in use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specifica- :1 tion, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in side elevation of a mine car, showing a scotch constructed in accordance with the present invention engaged beneath one of the wheels thereof.

Figure 2 is a View in side elevation of the device.

:7 Figure 3 is a bottom plan view.

Figure 4 is a cross sectional view, taken substantially on the line 4-4 of Fig. 2.

Figure 5 is a cross sectional view, taken substantially on the line 5-5 of Fig. 2.

; Figure 6 is a vertical sectional view through a portion of the side of the mine car, showing the connection of the scotch chain thereto.

Referring now to the drawings in detail, it will be seen that the embodiment of the present invention which has been illustrated! comprises a metallic handle I which includes an upturned end portion 2. The end portion 2 of the handle I has formed therein an opening 3 for the reception of a hook 4 on one side of the mine car 5 to for hanging the device on said mine car when said device is not in use. Mounted on the handle I is a swivel 6. A chain 1 has one end connected to the swivel 6 and its other end connected to a book 3 which is mounted on the mine car 5.

On one end of the handle I is a substantially 1939, Serial No. 278,800

U-shaped, integral jaw 9 which is adapted to straddle the rail III in spaced relation to the sides of the head or ball thereof for engagement beneath one of the wheels II of the car 5 in the manner shown to advantage in Fig. 1 of the drawings. The inner leg I2 of the jaw 9 has mounted thereon a removable and reversible plate I3 of suitable metal having an arcuate, toothed face I4 which is engageable with one side of the ball of the rail Ill. The plate I3 is secured in position through the medium of a countersunk bolt I5 which is provided with a nut I6.

The upper portion of the jaw 9 projects forwardly and Ethan folded under on itself in a manner to provide a protuberance ll of a double thickness of the material and from which the other leg l8 of said jaw9 depends. I

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. The jaw 9 is mounted on the ball of the rail HI beneath one of the wheels II of the mine car 5. The chain I is connected to the car 5 at such point that the scotch may be engaged beneath either the front or rear of the wheel. The flange of the wheel ll engages the protuberance I1 and twists or cooks the scotch on the rail in a manner to cause the substantially 'U-shaped jaw 9 to grip the ball of said rail. The toothed plate I3 is particularly useful for gripping wet or greasy rails. The upper portion only of the plate I3 engages the ball of the rail. Thus, when the teeth on this upper vportion become worn and dull the plate I3 may be expeditiously inverted in a manner to bring the unworn portions of the teeth into position for use. Also, the plate I3 may be conveniently removed for replacement when desired. The protuberance II extends across the path of the flange of the wheel for engagement thereby under all conditions. The handle I materially lessens the danger of a workman having his fingers mashed when handling the device. When not in use the device is hung on the hook 4 on the side of the car 5 from which it may .be conveniently removed when needed. It will be observed that the portions I, 2, 9, I2, I! and I8 of the device are all formed from a single bar of metal.

It is believed that the many advantages of a mine car scotch constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention is claimed.

What is claimed is:

1. A mine car scotch comprising a handle, a substantially U-shaped jaw including spaced legs on one end of said handle adapted to straddle the hall of a rail in spaced relation to the sides of said ball, one end of said jaw being engageable by the flange of a car wheel for cocking the jaw on the rail for frictionally clam-ping said jaw on said rail, and a plate including vertical teeth immovably secured on the inside of one of the legs of the jaw for gripping the rail.

2. A mine car scotch of the character described comprising a handle, a substantially U-shaped jaw including spaced legs integral with one end of said handle and adapted to straddle a rail in spaced relation to the sides of the rail head, a protuberance projecting from one end of the jaw and engageable by the flange of a wheel for cocking the jaw on the rail for clamping said jaw on said rail, and a .plate immovably secured on the inside of one of the legs of the jaw and including a vertically toothed, arcuate face for gripping the rail.

CHARLES H. MEAD.

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