US1192296A

US1192296A - Coal-jig.

Info

Publication number: US1192296A
Application number: US8663516A
Authority: US
Inventors: Michael J Gasper
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-03-25
Filing date: 1916-03-25
Publication date: 1916-07-25
Anticipated expiration: 1933-07-25

Description

2 SHEETS-SHEET I.

Patented July 25, 1916.

. J. GASPER.

coAL HG.

Gaye?" 29 J, l @M @mgm APPLICATION FILED MAR. 25| I9l6.

OOOO OOO O M. 1. GASPER. COAL JIG.

I APPLICATION FILED MAR. 25.19l6. 1,1 92,296. Patented July 25, 1916.

2 SHEETS-SHEET 2.

30 i 35 30 3/ im 4 gli( e? f mmms Fergus co..Pnam-uma..wnsm-amu; n cv `ivironnEL J. GASPEE, 0E lnoiizLEToit, PENNSYLVANIA.

COAL-(TIG.

Specification of Letters Patent.

VPatented July 25, 1916.

Application mea Marchas, 191e. serial No. 86,635.

following isa specification.

This lnventionrelates to that class of devices which are generally known as coal jigs or jiggers and" in which separation lof the relatively light coal from the relatively heavy refuse, such as rock and slate, is effected by the actionof water which` is caused to pulsate through `an inclined screen over which the mixture of coal and refuse as it comes from the mine isguided.

The invention has for its object `to produce a device of simple andimproved construction having a gate, known as the slate gate7 through which the heavy refuse is discharged, and means for automatically actuating said gate when a sufficient quantity of refuse material is accumulated.

A further object of the invention is to simplify and improve'the general construction and arrangement of the parts constitutlng the improved device.

With theseand other ends in view which will readily appear as the nature ofthe invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularlypointed out in the claims.

In the accompanying drawings has been illustrated a simple` andy preferred form of the invention, it being, however, understood that no limitation is necessarily made to the 1 precise structural details therein exhibited,

but that changes, alterations and modifications within the scope of the claimsr may be resorted to whendesired. i i

In the drawings, -Figure lis al side elevation of a coaljigger constructed in accordance with the invention, parts having been broken away. Fig. 2 is atopplan view with parts broken" away. Fig. 3 is a front elevation with parts broken away. F ig. 11 is a detail view, partly in section and partly in elevation, showing th porting the rock shaft carrying `the gate actuating arms and the counterweight arms. Fig. 5 is a detail view, partly in section and partly in elevation, showing a portion of the e manner of supplunger stem and the means on saidstem for engaging the arm ofthe rock shaft..

` orresponding parts in theseveral gures are denoted by like characters of reference.

The tank 15 supports the inclined grate or screen-16 through which water is caused to pulsate by well known means, not shown. At the. discharge end of the tank is the wall member `17` at the ylower end of which the slate gatelS is supported permitting said gate to swing outwardly from the tank. The coal receiving chute 2O is connected with the upper edge of the member 17` where the coal overflows; the

slate chute 21 is supported to receive the refuse coming over the grate or screen 16 when the gate 18 irs-open. f

The upper portion of the tank is provided with bearings or brackets 22 through which are threaded screws 23 that serve to support the rock shaft 24, said rock shaft and screws having interengaging conical points 25 and sockets 26 that will permit said rock shaft to operate freely, wear on the bearings being compensated for by `proper adjustment of the said screws 23. The rock shaft 24" has radial arms 27 that are connected by link bars 28 with the gate 18. The rock shaft 8-1 is also provided with arms 29 carrying coimterweights 30 that tend to maintain the gate 18 in aclosed position. The weights 30 are adjustably mounted on the arms 29 by set screws 31.

A cross bar 32 extending across the top of the tank supports a downwardlyextending cylinder '33 'which is made of screen material, such as Woven wire, perforated sheet metal or the like, said screen cylinder serving as a guide for a vertically movable plunger 34: which is likewise made of screen maf terial and of cylindrical shape. The cylindrical guide member 83 is cut away at its lower portion to produce a curved or inclined recess 35 facing the wall member 17 of the tank. The cut-awayportion or recess 35 will facilitate theescape of slate, rock and other obstructions `when the slate gateis thrown open and will prevent such material from becoming entangled with the cylindrical guide member. y The plunger 34C has an upwardly extending rod or stem 36 which is guided through aftube '37 mounted and supported on the cross bar 32, and said stem by a hinge 19,

carries a collar collar serving by contact with the upper endv 38 that may be secured in position at various adjustments by a set screw 39, said of the guide tube B7 to limit lthe downward movement of the plunger. The set screw 39, in addition to securing neath an arm l0 extending radially from the rock shaft 24:, said rock shaft being thus rocked against the tension exerted by the counterweights 30 when the plunger 3a and the stem 36 move in an upward direction.

In the operation of this device the coal and refuse coming from the mine is guided over the inclined screen 16 in the direction of the slate gate 18.l By pulsation of water through the screen tivelyv light is carried upward and is permitted to escape over the top edge of the wall member 17, being received in the chute 20. When a predetermined quantity of refuse, such as slate and rocks, has accumulated in the lower portion of the tankv adjacent to the slate gate, pressure will be exerted upwardly against the plunger 34, causing the latter to rise and to actuate the rock shaft whereby the slate gate is thrown open, permitting the accumulated slate and rock to pass into the chute 21. As soon as the pressure against the slate gate is relieved, the latter will be restored tc its closed position by the action of the counterweights 30, the plunger 34: settling to its initial position in the lower end of the cylindrical screen 33 which constitutes a guide for the plunger. The guide cylinder 88, as well as the plunger 345, being made of screen material, neither one nor the other of said members will obstruct the pulsation of the water, and the operation of the device is, therefore, facilitated and improved.

Having thus described. the invention, what is claimed as new, is

1. 1n a device of the class described, a jig tank having an inclined screen bottom and a slate gate hingedly supported above the low end of said screen bottom with its free edge adjacent thereto, means including a rock shaft having radial arms, and connecting ylinks or bars for controllingI the movement of the gate, and means including a vertically movable floating. plunger for actuating the rock shaft, said plunger having a predetermined limited movement independthe rock shaft. device of the class described, a jig ently of its connection with 2. In a v tank having an inclined screen bottom and a slate gate hingedly supported above the low end of said screen bottom with its free edge adjacent thereto, means including a rock shaft having radial arms, and connecting links or bars for controlling the movement of the gate, and means including a vertically movable floating plunger for actuating the rock shaft, said plunger having a prethe collar 38, is n utilized as an engaging member to engage bethe coal being relaof its connection with the rock shaft, said rock shaft having radially extending weight carrying armsto balance the weight of the slate gate.

i 3. In a device of the class described, a jig tank having a slate gate, actuating means for said gate including a rock shaft and suitable connections, adjustable counterweights 1 connected .with the rock shaft to maintain the slate gate normally in closed position, and gate actuating means including an r`arm extending from the rock shaft, a plunger guided for vertical movement in the tank and having an upwardly extending stem, and engaging means on said stem for the radial arm ofthe rock shaft, and a guide for said plunger having its lower end reduced to form an inclined recess.

d. In a device of the class described, a jig tank having a front wall over which coal may. flow, and a slate gate hinged at the lower edge of said wall, operating means for closing the gate including a rock shaft, connections between said shaft yand the gate, and counterweight carrying arms extending from the rock shaft, and operating means for opening the gate including a vertically movable plunger, an arm extending from the rock shaft, a plunger stem, and arm engaging means adjustably mounted on said stem whereby the plunger and the plunger stein may have a predetermined limited movement with respect to' the arm extending from the rock shaft.

icc

5. In a device of the class described, a jig tankhaving a front/wall over which coal may flow, and a vslate gate hinged at the lower edge of said wall, operating means for closing the gate including a rock shaft, connections between said shaft and the gate, and

vided at its lower end with a reduced portion forming a recess facing the' wall with which the slate gate is connected.

6. 1n a device of the class described, a jig tank having a front wall over which coal may ow, and a slate gate hinged at the lower edge of said wall, operating means for closing the gate including a rock shaft, connections between said shaft and the gate, and counterweight carrying arms extending from the rockshaft, and operating means for opening the gate including a vertically movable plunger, anvarm extending from the rock shaft, a plunger stem, .and arm engaging means on said stem; and guide means for the plunger consisting of a screen cylinder supported within the tank and having a reduced lower portion forming. a recess facing the slate gate.

7. In a device of the class described, a jig tank having a slate gate, actuating means for said gate including a rock shaft and suitable connections, adjustable counterweights connected with the rock shaft to maintain the slate gate normally in closed position, and gate actuating means including an armextending from the rock shaft, a plunger of screen material guided for vertical movement in the tank and having an upwardly extending stem, and engaging means on said stem for the radial arm of the rock shaft.

8. In a device of the class described, a jig tank having a slate gate, actuating means for said gate including a rock shaft and suitable connections, adjustable counterweights connected with the rock shaft to maintain the slate gate normally in closed position, and gate actuating means including an arm extending from the rock shaft, a plunger of screen material guided for vertical movement in the tank and having an upwardly extending stem, and engaging means on said stem for the radial arm of the rock shaft; the guiding means for the plunger being composed of a cylindrical member of screen material having its lower end cut oi obliquely to form a recess facing the slate gate.

In testimony whereof I aizo my signature in presence of two witnesses.

MICHAEL J. GASPER.

Witnesses:

JOHN J. KELLEY, JOHN KEMP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.