US1160660A - Mining-machine. - Google Patents

Description

1. SECRISTl IVHNKING MACHNE. APPLlc/JIQN FILED MAY 6. 1914.

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JOSEPH SECRIST, OF NUTTALBURG, WEST VIRGINIA.

MINING-MACHINE.

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West Virginia, have invented certain new and useful Improvements in MiningMachines,'of which the following is a specification, reference being had tothe accompany-l ing drawings. i

lThis invention relates'to new and useful improvements 1n mining machines, and more particularlyto a machine for mining coal,

and oneobject of the invention is to provide an apparatusof thisi character thatl shall combine simplicity of construction with the highest practicabllityl and durability in use andthe maximum offeiiioiency in operation,

and that shall inmany instances, be adapted to supersede the mining machines in common use. y v 4 A further object is to arrange the 'mechanismin such manner that power employed to operate the auger shall also be utilized in propelling the apparatus in forward and lateral directions. g i

With the above and other objects in .view as will appear as the nature of the invention is better understood, the same consists in .the novel construction and combination of arts of a coal mining machine and as will be hereinafter fully described and claimed.

'In the accompanying drawing forming a -part of this specifica-tion, and in which like characters of reference indicate thel corresponding parts: Figure 1 is a view in vertical longitudinal section through an apparatus constructed in accordance with the present invention, the section being taken on the line 1-1 of Fig. 2; Fig. 2 is a top plan view; Fig. 3 is a horizontal sectional view taken on the line 3--3 of Fig. l; Fig. 4 is a similar view taken on the line 4 4 of Fig. 1; Fig. 5 is a perspective detail view 'of one of the drums; and Fig. 6 is a similar view of one of the clutch members.

Referring to the drawings, 1 designates generally a housing .or casing, to the under side of which are 4secured skids S such as are usually employed in connection with machines of thischaracter to facilitate their being moved over the iioor of the mine. The housing comprises a vertical end Wall 2, two vertical side walls 3, an intermediate wall 4, a bottom wall 5, a top wall 6, a horilzontalwall 7, and a vertical end wall 8 lo-A Specication of Letters Patent.

Patented Nov. 16, 1915.

Application led May 6, 1914. Serial No. 836,780.

cated -atthe end of the casing opposite that at which the wall 2 is disposed. v

Journaled in the walls 2 and 4 is a shaft -9 carrying on its outer end an auger 10 which projects free of the wall 2 and at its lnner end a worm 11, the latter meshing with a worm wheel 12 carried by the upper end of a shaft 13 journaled in the wall 7, the lower end of the shaft being journaled 1n the bottom wall 5, and carries'thereon a pinion 14 that meshes with the gear'wheel `15 mounted on the lower endv'of a shaft 16, the upper end of which projects through the wall 7 and carries a pinion 17.

Journaled in the walls 2 and 4 is a shaft "18 that carries a motor'19 of any preferred type, the inner endy of the shaft within the wall 4 having secured to it, a pinion 20 that meshes with a pinion 21 on theishaft 9, back of the worm-1l. ,By this means, it will be seen that when the motor is driven, its motln is vtransmitted through the gears 20 and 21 to the auger shaft 9 and through the I, i

each drum being provided with a clutchY member 2.8, and these clutch members are in turn engaged by clutch members 29eand 30 keyed to the upper ends of th shafts 22 and 23. As will be understood, the drums f are loosel on the shafts, and are only`r`enf dered operable for rotation when the two clutch members of each drum are in locked engagement. In order to manipulate the clutch members 29 and 30 there is combined with each fof these members a clutch lever 31 and 32, respectively, which, in the manner common to such mechanical devices, will operate to 'control the action` of the drums through the medium of the clutch-ed faces.

Arranged on each side of the casing at 1its forward or auger carrying end, are two sheaves 33 and 34 which are mounted on brackets 35 secured tothe side walls of the casing. These sheaves are designed to be engaged by cables 36 and 37 which are wound about the drums, and one end of the cable 36 will be secured in any rigid manner' cable being to hold the auger to its work, f

and that of the second to permit a lateral movement to be imparted to the casing, thus to enable the auger to make a face cut and carry across the drift or coal wall.

In the operation of my mining mechanism, after both the cables have been anchored to the breast of the coal the motor is started and the clutches controlling both drums are thrown into engagement to clutch the drums to their respective shafts, whereupon the supporting frame or casing will be moved forward toward the breast of the coal and the cutting auger Will be driven /thereinto until the full depth of cut has been made. If the mining machine is to be moved to the left as in Fig. 2, then the cable 37 is anchored laterally as illustrated in Fig. 2 and then the clutch member of the drum 26 is shifted to disengage the drum 26 from its shaft, and thus power is applied to the drum 27. This winds up on the cable 37 and causes the casing to be moved laterally, the cable 36 being paid out gradually by any suitable means as the machine moves along the breast of the coal, it being understood that only enough of the cable 36 is paid out to permit just sufficient transverse movement of the machine without permitting the adjacent end of themachine to move outward away from the wall of coal. When the limit of movement in this direction has 'been reached the drum 27 is disengaged from its driving shaft and the drum 26 engaged, whereby the device may be brought back to its original position.

It is to be noted that the cables are so connected to the supporting framework or casing of the machine that a rotation of both drums will draw the framework toward the breast of coal, while a rotation of one drum in one direction with the release of the other drum and slackening of the corresponding cable will cause the transverse movement of the machine. This is secured by passing the cables 36 and 37 around the pulleys 33 and 34 respectively, instead of passing these cables directly from the casing to the lateral walls of the shaft or to lateral anchoring means.

Having thus described my invention, what I claim is:

In a mining machine, a supporting frame, a horizontal shaft mounted thereon and carrying a cutter elongated in the direction of the axis of the shaft, a motor mounted above the shaft and including a shaft carrying a gear wheel, a gear wheel on the cutter shaft meshing therewith7 a screw formed upon the cutter shaft, a gear wheel with which said screw engages, a driven shaft operatively engaged with the last named gear wheel, oppositely disposed drum shafts, gear wheels mounted thereon and engaging with the last named gear wheel for movement in the same direction, drums loosely mounted on said shafts, clutches whereby either one of said drums may be disengaged from its respective shaft or engaged therewith, cables mounted upon said drums, and pulleys mounted upon the forward end of said frame over which the said cables pass, the ends of said cables being adapted to be anchored.

In testimony whereof. I hereunto affix my signature in the presence of two witnesses.

. JOSEPH SECRIST. Witnesses E. A. COMEK, BIDDIE BARKER.

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