US23922A - Machine foe - Google Patents

Description

KENNEDY & BROWN.

Coal-Breaker. I No. 23,922. Patented May 10; 1859.

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CHAS. W. KENNEDY AND RIOHD. T. BROWN, OF \VILLIAMSBURG, NEIV YORK.

MACHINE FOR BREAKING COAL.

Specification of Letters Patent No. 23,922, dated May 10, 1859.

To all whom it may concern:

Be it known that we, CHARLES IV. KEN- NEDY and RICHARD T. BROWN, both of I/Villiamsburg, in the county of Kings and State of New York, have invented a new and Improved Machine for Breaking Coal; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1, is a side sectional view of our invention. Fig. 2, is a front view of ditto.

Similar letters of reference indicate corresponding parts in the two figures.

To enable those skilled in the art to fully understand and construct our invention we will proceed to describe it.

A, represents a base or bedpiece on which two uprights B, B, are placed, one at each side, the upper ends of the uprights being connected by a cross plate C, and braced by inclined bars D, D, which extend from the base to the uprights, as shown clearly in Fig. 1.

Between the two uprights B, B, a polygonal drum E, is placed and allowed to rotate freely. In Fig. 1, the drum is represented as being a hexagon. Each face is of cast metal provided with spikes a, of suitable length, and the plates are divided by radial flanches or plates 6, which serve as partitions and form a sort of box or recess for each plate, as shown more particularly in Fig. 1. The sides or heads 0, of the drum also project out beyond the faces of the drum extending outward even with the ends of the plates or fianches I).

On one end of the shaft (Z, of the drum E, a wheel F, is placed. This wheel is at the outer side of the upright B, and it has holes 6 made in its periphery, one opposite the center of each face of the drum. To the inner side of the wheel. F, and in lines radial with the holes 6, pins f, are attached. Through the lower parts of the uprights B, B, a shaft G, passes. This shaft is parallel with the shaft (Z of the drum E, and it has a crank g, on one end, and a fly wheel h, on the opposite end. The upper parts of the uprights B, B, are slotted vertically for a certain distance and the journals h, h, of a plate H, are fitted therein and allowed to work freely up and down. The ends of the journals 71,, h, are connected by rods 2', to the crank g, and Wheel h, the

latter being a crank as well as a fly wheel. The plate H, is armed with spikes j, and they are so placed or disposed in the plate as to be in line with the centers of the spaces between the spikes a, of the drum E, when the faces of the latter are directly underneath the plate H.

The plate H, is perforated all around near its edges and the spikes k, of a plate I, fit therein. This plate I, is directly over plate H, and spiral springs Z, are placed around the corner spikes to sustain the plate I.

To the upright B, that is by the side of wheel F, a slide m, is attached, said slide being fitted in a proper guide a, and resting on a rod 0, which has a spiral spring 0, placed on it. To the upper end of slide m, a spring pawl p, is attached. To this same upright B, a slide 9, is also attached and fitted in the same guide a. The upper end of the slide q, is connected to one end of a lever 1', which is attached to the upright B, said lever 7 having a pin .9, projecting down from its opposite end. On the lever 1", a spring t, bears, said spring having a tendency to keep the pin 8, in the holes 6 of the wheel F. To the lower end of the slide m, a horizontal arm a, is attached, and a similar arm 41, is attached to the lower end of the slide 9. On the shaft G, a tappet w, is placed. J, is a hopper attached to the braces or bars D, D.

The operation is as follows z-Motion may be given the the shaft G, in any proper way, and as said shaft G, rotates, a reciprocating movement is given the plate I, by the crank g, and crank Wheel it, and connecting rods 2', 2', and an intermitting rotating movement is given the drum by means of the pawl 29, which catches on the pins f, of the wheel F, said pawl being actuated by the tappet w. The wheel F, is released from the retaining pin 8, just previous to the downward move ment of the pawl 79, by the movement of the slide 9, which is also actuated by the tappet w. The relative movement of the drum E, and plate I, is such, that the drum E, stops as each face reaches a horizontal plane directly in line with the plate H, the latter then descending and breaking the coal which passes on the faces or sides of the drum from the hopper J. As the plate H, ascends and reaches the termination of its upward movement the plate I, is arrested by the cross plate O, and the spikes 70, pass downthrough the plate H, and clear it from all fragments of coal that might have become wedged between the spikes j. The broken coal falls from the drum as the latter rotates.

This invention has been practically tested and operates well, and rapidly. The coal is broken with but little waste, that is to say, but comparatively little dust is formed and the machine may be constructed at a moderate cost.

\Ve are aware that spiked endless chains or aprons have been used in connection with spiked hammers for breaking coal, but these devices have been found liable to get'out of repair. They lacked solidity, and were expensive to construct.

Ve do not claim broadly the breaking of coal by means of spiked surfaces, one or both being brought in contact or toward each other so as to act on the coal; but,

lVe do claim as new and desireto secure ,by Letters Patent,

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