US2038141A - Safety mine car scotch - Google Patents

Description

April 21, 1936. G, w STONE 2,038,141

' SAFETY MINE CAR SCOTCH Filed Feb. 2, 1955 I 5 Sheets-Sheet 1 Inventor Attorney April 21,1936.

SAFETY MINE CAR SCOTCH Filed Feb. '2, 1935 s Sheets-Sheet 2 /6 Inventor /5 I 'eazje W Sfone Attorney ,IG. WQST NE 2,038,141 v A fil 21, 1936. G, w S NE 2,038,141

SAFETY MINE CAR SCOTCH Filed Feb. 2, 1955 3 Sheets-Sheet 5 Invenlor' Q4. MM 1 fllfomey Patented Apr. 21, 1936 UNETE STATES PATENT ()FFICE SAFETY IVHNE CAR SCOTCH George Walter Stone, Yukon, W; Va.

Application February 2, 1935, Serial no. 4,701

3 Claims.

Another important feature of the invention resides inthe provision of a safety scotch of this nature which is simple in its construction, easy I to install and remove, inexpensive to manufacture, reliable and efficient in use and. otherwise well adapted to the purpose for which it is designed.

. With the above and numerous other objects in 20 view as will appear as the description proceeds, the invention consists in certain novel features of construction, and in the combination. and arrangement of parts as will be hereinafter more fully described: and claimed.

25 In'the drawings:

Figure 1 is aside elevation of a scotch embodying. the. features of my invention showing the same installed on a rail.

Figure 2 is a sectional view taken substan- 30 tially on the line 2-2 of Figure 1 looking in the direction of the arrows.

Figure 3 is a similar view showing the scotch block swung out of the way.

Figure 4 is a detail top plan view of the scotch 35 block.

Figure 5 is a detail top plan view of the mounting block.

Figure 6 is a side elevation thereof.

Figure 7 is a sectional view therethrough taken 40 substantially on the line 1-1 of Figure 6.

Figure 8 is a top plan view of the clamping plate.

Figure 9 is a fragmentary side elevation of a low type mine car showing an adaptation there- 45 with of a modified form of the scotch block, and

.. The present invention relates to a safety mine having an'inner face 6 to abut web 1 of theraih; an inclined upper face 8" toabutthe underface of one side side of the ball 9- of' the rail andan inclined lower face 9- to abut one side of the upper face of the base I!) of the rail and pro- 5 vided on the outer face-adjacent the upper edge thereof with aplurality of apertured ears Ifl spaced relation. A clamp plate I! extends under the base In and on one end has an overhanging flange M and at theother endfl-has stud bolts I 5 10' for receiving apertured ears l 6- depending from the block 5-to be impinged against by nuts H on the stud bolts. The scotch block I9'has arms 28 extending between the ears- If and apertured to receive pin 21 also extending through the aperturedears H so as to swingably mount the arm so that the block l9 may be placed on the" railas shown in Figures 1 and 2 orswung out of the way as shown in Figure 3. In order to brace the block when on therail, there is an overhang- 2ting bracing flange 22 provided on the scotch block. Of course, the scotch block is provided at each end' with the curved beveled portions'25 toreceive the'wheel as indicated to advantage in' Figure I in dotted lines.

It very often happens in mines that theibody B of the cars are necessarily of low construction, leaving very little space between the ball of the track rail and the bottom of the body. In this construction of the cars the height of the scotch block I9 would necessarily be reduced to allow the block to be swung up into position on the ball of the rail and with the height of the scotch block l9 being reduced there is the possibility of the block not offering enough of a buttress to hold the car in chocked position. To meet such an exigency I have illustrated the modified form of the scotch block in Figures 9,

10 and 11.

When cars with low hung bodies B are constructed, the wheels 30 thereof are mounted in forward and rearward cavities, one of which is indicated at 3|, and to accommodate maximum capacity in the body B very little space as indicated at 32 can be allowed between the tread of 4 the wheels and this cavity. Now, to accommodate a suificient buttress to hold the cars securely chocked, I provide a cavity 33 in each end of the scotch blocks l9, extending inwardly from the upper portions of each curved, beveled face 25. In each cavity is rockably mounted an extension shoe 34 rockably mounted intermediate its end on a pin 35 and the ends of the pin are seated in openings 36 in the side walls of the scotch block I9.

One end of the extension shoe 34 is longer and slightly heavier than the other which permits the longer end to project outwardly of the cavity 33 under normal conditions. The other shorter end in this event is held within the cavity 33 as illustrated in Figure 9 and the free end in Figure 10. In the normal position, the longer end of extension shoe 34 clears the bottom of the body B of the car. When the scotch block I9 is thrown upwardly resting on the ball of the track rail and the car moving from right to left in Figure 9 of the drawings, the longer end of the extension shoe 34 on the right end of the scotch block bears against the tread of the wheel and as the car moves further from right to left the extension shoe will present the entire face thereof as a buttress to the wheel 30 as shown in Figure 10 of the drawings. As shown in Figure 10 of the drawings it will be seen that the extension shoe provides greater chocking surface than could be obtained by merely using the arcuate beveled face 25 against the flange of the wheel, while at the same time the longer end of the extension is made to fit snugly 1n the space 32 between the cavity 3| and the wheel 30.

In all other respects, the scotch block I 9 is the same as described in connection with Figures 1 to 8 inclusive.

When the device shown in Figures 9 to 11, in-

clusive, is to be used, the member I9 is first swung to inoperative position, as indicated in Figure 3, and then the car is advanced until the space between a pair of wheels is located opposite the member. Then the member I9 is swung upwardly on the rail between the pair of wheels, so that one of the members 34 will engage the rear wheel, as shown in Figures 9 and 10.

It is thought that the construction, utility and advantages of this invention will now be quite apparent to those skilled in this art without a more detailed description thereof.

The present embodiment of the invention has been described in considerable detail merely for the purposes of exemplification since in actual practice, it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described theinvention, what is claimed as new is:

1. A device of the class described including, in combination, a block, means for clamping the block to a track rail, a second block, means for swingably mounting the second block on the first block so that the second block may rest on the rail for the purpose of providing a chock, said second block formed with a cavity, an extension shoe rockably connected to the second block and having one end normally projecting from the second block and the other end normally seated in the cavity whereby the projecting end is moved by the wheel of a car to be chocked to present the entire length of the shoe as an additional buttress. i i

2. A device of the class described comprising, in combination, a block, means for swingably mounting the block on a track rail, said means permitting the block to be swung so as to be mounted on the rail or to one side of the rail and when mounted on the rail providing a chock, said block being formed with a cavity, an extension shoe rockabl-y mounted on the block and having one end normally projecting from the block and the other end normally seated in the cavity whereby the projecting end is moved by the wheel of a car to be checked to present the entire length of the shoe as an additional buttress.

3. A device of the class described comprising a block, means for holding the block with its lower edge resting on the head of a rail, said block having a cavity in a wheel engaging edge thereof, an extension shoe mounted for rocking movement in the cavity and having one end normally projecting from the block and the other end normally seated in the cavity, whereby the projecting end is moved by the wheel of a car to be chocked, to present the entire length of the shoe to the wheel.

GEORGE WALTER STONE.

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