US1278333A - Coal-mining machine. - Google Patents

Description

J. GRICAR.

C0 AL MINING MACHINE. v APPLICATION FILED mu. 25, 1911.

,333. Patented Sept. 10,1918.

2 SHEETS-SHEET GRICAR.

COAL MINING MACHINE.

APPLICATION m n JAN.25. 1917.

Patented Sept. 10, 1918.

2 SHEETS-SHEET 2.

t g-rtoe'nfot attorney- JOHN GBICAB, OF LOWELL, ARIZONA;

coAL-e cnmn.

Specification of Letters Patent. Patented Sept, 10, 191$,

' Application filed January 25, 1917. Serial No. 144,518.

To all whom it may concern."

Be it known that I, JOHN GRIoAR, a subject of the Emperor of Austria, residing at Lowell, in the county of Cochise and State of Arizona, have invented certain new and useful Improvements in Coal-Mining'Mawhereby the cutting members may be fed into the work to a limited extent without shifting the anchoring means.

In the drawing formingla application and in whic like-reference characters refer to corresponding parts throughout the several views:

Figure 1 is a side elevation of the device.

Fig. 2 is a horizontal sectional view thereof.

Fig. 3 is a view partly in elevation and partly in section upon line HIITI of Fig. 1.

Fig. 4 is a longitudinal sectional view taken upon line IVIV of Fig. 2.

Fig. 5 is a perspective view of one of the side brackets of the anchoring member, and

Fig. 6 is a perspective view of one of-the cutting members detached.

Referring more in detail to the drawing the device broadly consists of an ovalshaped frame 10 of channel-bar formation having an upright inverted substantially U-shaped arch or anchorin member 11 centrally positioned therein a apted to adjustably engage the-top and bottom of the mine 12 and 13, respectively, the said, frame adapted for carrying manually operable cutters 14, and being longitudinally shiftably arranged upon the said anchoring member 11.

The anchoring member for the device comprises oppositely positioned brackets15 and 16 of similar formation arran ed inwardly of the frame 10 with outwar y propart of thlS' on the shaft 25.

jecting flanges 17 within which the frame 10 islongitudinally slidably arranged in horizontal position. The inner sides of the brackets 15 and 16 are provided with parallel vertical inclosing flanges 18 within which the parallel side beams 19 of-the anchoring member 11 are seated and secured and whereby the anchoring member is arranged perpendicularly with respect to the frame 10. A horizontal-bottom beam 20 connects the brackets 15 and 16 together, the same assisting the enlarged feet 21 of the brackets 15 and 16 in forming a base upon which the anchoring member 11 may seat upon the mine bottom 13, affording a stable mounting means for the frame 10 of the machine, it being understood that an adjustable point 22 is threaded upon the holding member 23 at the top. of the anchoring member 11' for forcible engagement with the top 12 of the mine whereby the member 11 is temporarily fixedly positioned at a desirable point within the mine. A locking screw 24 is carried by the point 22 for maintainmg the same in its adjusted position upon the; member 23. Calks 17' are carried by ,thefeet 17 for engagement with the bottom of the mine. The anchoring member 11 and brackets 15 and 16 are readily separated from the frame 10 to facilitate transportation. Y

An 5 operating shaft 25 is transversely journ'aled upon the anchoring member 11,

being providedv with a plurality of turn cranks as illustrated at 26 in Fig. 1 and,

by dotted lines in Fig. 3 of the drawings. tub-shafts 27 are'journaled within angular arms 28 at the outer sides of the brackets 15 and 16 upon which gears 29 are secured in constant mesh with toothed racks 30 formed at opposite marginal points on the 'upper face of the frame 10. Sprocket chains 31 connect the shaft 25 with a sprocket 25 upon a sleeve 27 of the bracket 28 by running over a sprocket member 33 journaled The stub-shafts 27 are connected to the sleeves 27 by means of gear wheels 3232' mounted upon the said stub-shafts and sleeves. A clutch member 34 is' arranged for each of the sprocket members 33, the same. being splined upon the shaft 25 and adapted to be moved inland out of clutching engagement with the ion sprocket members by means of shift levers 35. It will be understood that by turning 1 either or both of the cranks 26, when the clutch members 34 are in mesh with the 5 sprocket members 33, as normally maintained by the springs 33' on the shaft 25, the stub-shafts 27 will be turned for feeding the frame in the desired direction longitudinally upon the brackets and 16, simultaneously with the operation of said cutters .14 by the means hereinafter de scribed. I

i A power chain 36 is arranged within the outwardly opened channel 37 o f the frame 10 being mounted 'upon anti-friction rollers 38 carried within the frame and projecting outwardly through slots 39, the cutting member '14 being removably secured and suitably spaced apart upon the chain 36 by bolts 40, the said mem ers 14 being-fitted for free slidin movement within the channelv 37 of the ame. The cutting teeth 41 of the members '14 have sharpened outer edges 42 projecting from the frame 10 adapted for engaging the side of the mine and cutting the coal during theoperative movement of the chain 36 in the direction indicated by an arrow in Fig. 2 of the draw ings. Clearing teeth 14 are alternately arranged upon the chain 36 intermediate the teeth 14 for clearing away the cuttings, while differently. formed teeth may be employed if ldesired.

A shaft or axle 44 is journaled in the, bracket 16 between an extension 45 carried thereby and the adjacent foot 21, a sprocket wheel 46 being carried by the said axle in constant operative engagement with the power-chain 36 through a longitudinal slide slot 47 of the frame 10, while a transverse shaft 48 is journaled between theextensio'n 45 and the arm 49 of the opposite bracket 15. Beveled pinions 50 and 51 are carried by the shafts 48 and 44, respectively, being in constant mesh with each other while the shaft 48 is operatively connected with the shaft by means of a sprocketchain 52 passing over sprockets 53 arranged upon the said shafts. The bottom flange 37, of the frame 10 has a plurality of openings 10 therethrough to allow the cuttings to drop beneath the frame, preventing the teeth from clogging.

The complete operation of the device will be apparent from this detailed description thereof, the anchoring of the machine at the desired point within the mine having been already described. With the frame 10 arranged adjacent the wall of the mine, where- 60 by the cutting blades 42 will engage the coal, the cranks 26 are turned for revolving the sprocket wheel 46 thereby operativelymoving the chain 36 and forcing the blades 42 into engagement with the work, while '65 simultaneously therewith the stub-shafts 27 are turned for feeding the frame 10 toward the wall being operated upon. The levers 35 may be operated to release the clutches whenever it is desired to operate the cutter chain 36fivithout feeding the frame 10.1ongitudi- 11% yi It will be noted that a clutch connection is provided between the chain 52 and the shaft 25, the same consisting of a clutch member 10 slidably splined upon the shaft 25 and adapted for clutching engagement with the sprocket member .11 which is journaled upon the shaft 25 and over which the chain 52 runs, operating lever 12 being pro- ,vided for the said clutch. It will be understood that by releasing the clutch member 10 the shaft 25 may be turned for feeding the frame 10 lbngltudinally withdrawing the" teeth 14 from the work without operat ing the chain 36. By the arrangement herein described, the shaft 25 may be turned without operating either of the chains 31 and, 52 or all simultaneously as found desirable, while the frame 10 or the chain 36 may be separately operated.

What I claim as new is 4 1. A coal mining machine including a pair of spaced oppositely positioned supporting brackets each having a pair of spaced horizontal outwardly positioned guide flanges and a vertical inwardly positioned socket, a jack including an upright arch member having its ends removablyreceived within the sockets of said brackets and adapted to connect'the latter, a substantially oval horizontal channel frame longitudinally slidably guided and supported by said brackets between the horizontal flanges thereof, an endless coal cutter chain arranged in the channel of said frame, and means associated with 1 5 said brackets and said arch member toshift said frame and to operate. said cutter chain. 2. A coal mining machine including a ack having an inverted substantially U- shaped upright member, a pair of spaced oppositely positioned brackets removably attached to the lower ends of the legs of said member and having base supporting feet, a horizontal substantially oval channel frame arranged outwardly of and longitudinally shiftably guided and supported by said brackets, an endless coal cutter. chain, operately arranged in the channel of said frame, and means associated with said brackets and said upright member to operate said cutter 1 0 chain and to shift said frame.

3. A coa1 mining machine including a pair of spaced oppositely positioned brackets, each having a pair of horizontal outwardly positioned spaced flanges and a vertical inner socket, a jack including an inverted substantially U'-shaped upright member having the lower ends of its legs removably recelved within said sockets, a horizontal substantially oval channel frame longitudi- 139 y na-lly-shiftablyguided'and supportedbysaid stant mesh with said racksand having oper-- brackets between said horizontal flanges ative connections with said power shaft, and thereof, an endless coal cutter chain aroperative connections between said power 1 ranged in the channel of said frame, a transshaft and the cutter hain.

5 verse power shaft carried by the legs of said In testimony whereof I affix my signature.

upright member, toothed racks upon the upper flange of said frame, gears in con- JOHN GRICAR.

Images