US2088555A - Scotch - Google Patents

Description

July 27, 1937. c. F. SMITH 2,088,555

SCOTCH Filed Oct. 29, 1956 2 Sheets-Shet 1 3mm 6. 1. Sim/7k alum/MA;

July 27, 1937. c sMlTH 2,088,555

SCOTCH Filed Oct. 29, 1936 2 Sheets-Sheet 2 a wucmk r- EM/M4 WW3 Patented July 27, 1937 unrrso, srarss rA'rE T OFFICE 2,088,555 SCOTCH Charles F. Smith, English, W. Va. Application October 29, 1936, Serial No. 108,283

7 Claims.

'This invention relates to an automatic safety scotch mechanism for mine carsand. it aims to provide a novel construction capable of use in connection with any railway car, although especially designed to make coal mining safer.

A prime object is to provide such a construction having a scotch block adapted to prevent the car fromrunning off of a rail and a movable scotch block which is positioned automatically through engagement of a car with the stationary or first mentioned scotch block.

The more specific objectsand advantages will become apparent from aco-nsideration of the description following taken in connection with the accompanying drawings illustrating an operative embodiment.

In said drawings:-- 1

Figure 1 is aview in side elevation showing my improvements in. position about to be engaged by a car;

Figure 2 is a plan view of the parts in the con.- dition of Figure 1;

Figure 3 is a reverse side elevation to Figure 1;

Figure 4is an end elevation looking from the right of Figure 2;

Figure 5 is a detail section taken on the line 5-5 of Figure 1;

Figure 6. is; a side elevation showing the improvements in operative condition holding a car;

Figure '7 'is' a plan View of the parts of Fig-- ure 6;

Figure 8 is a detail section taken on the line 8--8 of Figure 6, and

Figure 9 is a detail section taken on the line 99 of Figure 6.

Referring specifically to the. drawings wherein like reference characters designate like or similar parts, Ill designates one railor track of a rail way, for mine cars, a wheel of one of which is suggested as at H, saidrail and wheel being of conventional structure.

In carrying out the invention, a scotch block is employed at 12, which is cut-out as at 13, in order to intimately fit against the rail and extend above it, the portion of the block above the rail being concave as at M to conform with the periphery of the'wheel II. Said block 12 is adapted to be fastened to the rail in a stationary manner and to this end a detachable clamp block is employed at It, cut away to intimately fit the block 12 and clamp 15 which engage the ball 20 of the rail it, are preferably serrated or roughened as at 2! so that they may engage the ball with less danger of slippage.

An arm 23 extends rigidly from the block I2 5 and to the free end of such arm on a vertical pivot or bolt 24, a movable scotch block 25 is fastened, preferably through the mediumof an arm26. Arm 25 has a lug 21 thereon to which a lever or bar 28 is pivoted by means of a verti- 10 cal bolt 29. To such lever 28 a trigger member 31] is pivoted by means of an element 3| on a horizontal axis and which trigger is pivoted to a rod 32, preferably slightly curved as shown, and having an abutment 33 at its outer end, the 15 trigger. 38 being slidable alongthe rod 32 as well as pivotally mounted on the same.

It will be noted that the clamp member i5 is beveled or cut away as at 34 and that the lever I 8 is beveled or cut away as at 35. 20

Normally the mechanism is set in the position best shown in Figures 1 to l. The movable scotch block 25 is thus out of the path of movement of the car. Thewheel II will move on the track orrail l0 past the scotch block 25 and engage 25 thetrigger .30, moving it on its axis 32 and causingit to move the lever 28 and scotch block 25 into alignment with the scotch block [2, on the opposite side of the wheel, thus automatically functioning. The wheel as a result, will be held by the block 12 from rolling off the end of the railand it will also be held from movement in the opposite direction by the scotch block 25.

Attention is called to the fact that as the wheel engages the surface M, the flange thereof will enter thecut away portion 34, thus acting as a wedge therein and moving the block I2 and clamp 15 into tighter engagement with the rail, to guard against slippage or displacement thereof.

The scotch block 25 may be manually released 40 by the miner, to the position best shown in Figure 2, by swinging the lever 28 outwardly on its axis and at the same time pulling the lever so that the trigger 38 rocks on the rod 32. While the wheelis still engaged with the scotch block l2, the scotch block 25 may be released by the miner, by pulling the lever 28 outwardly at its free end, the length of the rod 32 permitting the necessary movement, especially to enable the parts to slip past the drum of the wheel. By us- 50 ing the lever to pull the trigger out and return the scotch block l2 to its open position, the car having the wheel II can be pulled or moved away from the block I2 without endangering the miner. In cases where the weight of the car is still against the scotch block 25, the lever 28 may be pulled out into engagement with the abutment 33 and then when the scotch 25 is released, the lever can be pulled back into ready or open position and then When the car has been removed, the lever is pushed back into normal position as in Fi ure 2.

In some instances it is necessary to apply a scotch to a rail having no open end. The bevel edge 34 of the clamp, with the lever I8 having the bevel edge 35 permits relative tilting of these parts so that the device may be attached with-- out disconnecting the rail.

Said lever I8 is also beveled at 35 to permit the release of the clamp so that it may be placed on or removed from the rail anywhere without having to slip it over the end of the rail. It is clear that the openings in the clamp I5 and lever I8, through which the bolt Ill passes, are of such size to permit the movements mentioned.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:-'

1. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, and means operable through movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned scotch block to the rail on the side of the Wheel opposite to the first mentioned scotch block.

2. A device of the class described having a scotch block, means. to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable through movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the first 'mentioned means comprising a clamp, said clamp and first mentioned scotch block being engageable with a rail.

3. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable through movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the first mentioned means comprising a clamp, said clamp and first mentioned scotch block being engageable with a rail, a bolt passing through the first mentioned scotch block and clamp, said clamp having a beveled upper edge portion providing clearance to receive the flange of a wheel to wedge the same into engagement with a rail.

4. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable though movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the first mentioned means comprising a clamp, said clamp and first mentioned scotch block being engageable with a rail, a bolt passing through the first mentioned scotch block and clamp, said clamp having a beveled upper edge portion providing clearance to receive the flange of a wheel to Wedge the same into engagenient with a rail, a nut on said bolt, a lever on the bolt between the nut and clamp, said lever having a beveled upper end, permitting movement thereof to afford clearance between the clamp and first mentioned scotch block.

5. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable through movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned'scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the second mentioned means including a lever automatically movable by the Wheel, for the application of the second mentioned scotch block, said lever being manually operable to release the second mentioned scotch block.

6. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable through movement of a wheel to engage the first mentioned scotch block, to apply the second mentioned scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the second mentioned means including a lever automaticaly movable by the wheel, for the application of the second mentioned scotch block, said lever being manually operable to release the second mentioned scotch block, an arm extending from the first mentioned scotch block, and means pivoting the second mentioned scotch block to the arm on a vertical axis.

'7. A device of the class described having a scotch block, means to secure said scotch block to a rail, a second scotch block movably secured to the first mentioned scotch block, means operable through movement ocf a wheel to engage the first mentioned scotch block, to apply the secondv mentioned scotch block to the rail on the side of the wheel opposite to the first mentioned scotch block, the second mentioned means including a lever automatically movable by the Wheel, for the application of the second mentioned scotch block, said lever being manually operable to release the second mentioned scotch block, a trigger pivoted to the lever adapted for direct engagement with the car wheel, and a rod on the first mentioned scotch block on which the trigger is pivotally and slidably mounted.

CHARLES F. SIWIT'H.

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