US19939A - Machine fob hoisting and dumping coal - Google Patents

Description

UNITED STATES PATENT ormon.

MACHINE FOR HOISTING AND DUMPING COAL.

Specification of Letters Patent No. 19,939, dated April 13, 1858.

To all 'whom it may concern:

VBe it known that I, GEORGE MARTZ, of Pottsville, in the county of Schuylkill and State of Pennsylvania, have invented a new and useful Machine for Hoisting and Dumping Coal; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure l, is a front view of a coal hoisting and dumping machine, constructed after my invention. Fig. 2, is a vertical longitudinal section of the same, the coal car being in position ready for being hoisted. Fig. 8,is a similar section, the coal car being in position it occupies in dumping its load.

Similar letters of reference in each of the several figures indicate corresponding parts.

The nature of my invention consists in the employment, in. combination with the car and dumping chute of the peculiar arrangement of mechanism, consisting of the rising and falling gate, pivoted platform, with adjusting and lifting projections forming sections of the rails of a railway, confining catches, and releasing trip bar of the frame and platform; and suspended overhanging tilting stop of the frame, all substantially as hereinafter specified. 2nd. In the arrangement of the tilting bar above the front of the platform, whether yielding or stationary, so as to insure the tilting or dumping of the car at the proper time, as presently described. Srd. Having the sections of the railroad attached to the platform so that they. may rise and come in contact with the wheels of the car, and cause the car to assume a proper lifting position, and also serve for lifting the car and likewise for holding it from forward or backward play while tilted or dumped, substantially as hereinafter described.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A, represents the frame of the machine, consisting of two uprights and suitable cross ties to brace and hold together the uprights.

B, is a sliding gate; it is arranged to slide freely up and down over ways a, a, of the frame A, being furnished with grooves to match or receive the ways. This gate is suspended and raised and lowered by a windlass chain C, which is attached to, and winds upon a windlass D, as illustrated.

E, is a platform pivoted at a, to the gate B, as shown, andheld horizontal while being raised to a dumping position by peculiar catches, presently to be described. This platform when in operation supports the eX- treme rear and front parts of car F, as illustrated at b, b; it also supports the eXtreme outer edges as indicated at c, c, and likewise supports the wheels as shown at (Z, d. The projections or supports (Z, d, which pass up and come in contact with the wheels of the car, it should be noticed are rounded off at the corners in order that if the car is not eX- actly in proper position, it shall, by reason of its rolling wheels coming in contact with said corners, be caused to assume a proper position for being elevated. These projections d, d, are placed in line with the rails e, c, of the railway F, and when the platform is lowered as shown in Figs. l and 2, form intermediate sections of said rails, as shown. The foundation of the railway being cut away in line with these projections as shown at f, so as to allow the gate to descend the proper distance to bring theupper edge of the projections or intermediate sections of the rails level with the stationary portions e, e, of the railway.

G, lis a vert-ical T shaped spring stop plate attached to one side of the platform and eX- tended upa short distance, and furnished with two horizontal catches g, g, which occupy places against the front and back edges of one of the uprights of the gate B, and serve for preventing the plat-form tilting back or forward while lbeing elevated to a dumping position. f

H, is a pivoted trip bar or plate attached to the front edge of one of the upright's of.

the frame in such relation to the catch or stop plate G, that when the car is raised to the position shown in Fig. l, one of the catches of the said stop plate comes in contact with it (thebar H) and is forced by said bar, laterally, sufliciently far, as illustrated in red lines, tofree the platform from the gate at this point and allow of its tilting and dumping the car in the manner illustrated in Fig. 3. The extent of the forward movement of the platform being controlled by a stop s, and a back movement of the same being prevented by a stop b. I, is an inclined chute, attached to the front of the frame.

J, is a tilt-ing stop suspended from a bearing at the front, near the top of the frame A, this stop may be stationary, but I preferably make it yielding, or to slide up and down in its bearing, and self adjusting'by means of a weight or spring placed on its upper end. This stop overhangs the front part of the platform E, and consequently, when the car is on the platform and raised to a dumping position, its forked end comes in contact with the upper edge of the sides of the car, near the front, and tilts the car and platform as illustrated in the drawing, Fig. 3. The car and platform in being tilted are thiown forward, and the front end of the platform strikes upon and slides over a back stop 71 of the chute and thus prevented falling back between the chute and the gate B. As soon as the car is tilted, its swinging or pivoted tail board I, is ung latched and allowed to open automatically by reason of the extension end of the latchy', coming in Contact with a curved inclined stop 7c, of the chute and being lifted thereby out of a recess in the latch bar Z, of the frame, as illustrated in red in Fig. 3.

In practical operation, two of these machines are combined and arranged in such a manner that the car of one shall be ascending while the car of the other is descending, hence it will be seen that it is important to have the tilting bar J, yielding, so that in case the engine is reversed just a moment after the load of one car has been dumped and before said car has passed down below the tripping bar or plate, this car shall have a chance of rising without danger of breaking the machine.

What I claim as my invention and desire to secure by Letters Patent, is

1. The employment, in combination with the car F, and dumping chute I of the peculiar arrangement of mechanism, consisting of the sliding gate B, pivoted platform E, conning catches T, g, g, trip bar II, tilting or dumping stop J; all substantially as and for the purposes set forth.

2. The employment of the tilt-ing or dumping stop bar J, whether yielding or stationary, above the front of the platform E, substantially as and for the purposes set forth.

3. Having the sections d, d, of the railroad GEORGE MARTZ.

Witnesses JEROME L. RiLAND, BARNHARD BARR.

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