US897415A - Mining-machine. - Google Patents

Description

PATENTED SEPT. 1, 1908. G. SANTA.

MINING MACHINE.

APPLICATION FILED SEPT. 17, 1907. 7

2 S'HEETSSHEET 1.

No. 897,415. PATENTED SEPT. 1, 190a.

- G. SANTA.

MINING MACHINE.

APPLICATION FILED SEPT. 17, 1907.

2 SHEETS-SHEET 2.

AWE/FIVE) GESA SANTA, OF SAN FRANCISCO, CALIFORNIA.

MINING-MACEEZNE.

Specification of Letters Patent.

latented Sept. 1, 1908.

Application filed September 17, 19M. eerie No. 393,365,

To all whom it may concern: I

Be it known that I, GESA SANTA, of the city and county of San Francisco, State of California, have invented certain new and useful Improvements in Mining-Machines, of which the following is a specification.

The invention relates to mining-machines of that class havingas the cutting element a movable cuttin -chain.

Objects of t e invention are improved means of support, operation and control of the operative parts of the machine.

The nature of the invention will a pear from the following descri tion and cl lms, read in connection with t e accompanying drawings, in which Figure 1 shows in side view, with parts broken away, a coal-mining machine embodying my invention, Fig. 2 is a plan of the machine of Fig. 1, Fig. 3 is a vertical longitudinal section on line 33, 'Fig. 2, on a larger scale, and with the cutting-chain removed, and Figs. 4 and 5 are respectively a face view and a side view of a portion of the cutting-chain, on a larger scale than the preceding figures.

Similar letters of reference indicate corresupports and adjustable against the mine roo Bearings a, a, of the bed sup ort longitudinally below the same a shaft carrying a bevel pinion c, meshing with a bevel gear d, loose on leg 6, to which is connected integrally or otherwise a driving sprocket-wheel B, u on which sprocket wheel and a sproc ct-wheel D at the outer end of a chainboom C is carried the cutting-chain E. The chain has thereby an axis of support lying within the axis of the driving s rocket. Boom C is pivoted at the leg e, an is supported between the swinging axis and its outer end by an arm F swinging u on an extension of the leg c above the ed.- The boom 0 extends within the chain and is con- "tinuous and rigid throughout its length and motor-shaft and gear g upon drive-shaft b, to said shaft 7), and thence through pinion c, and gear (1, to sprocket B, whereby chain E is moved in cutting direction according to the direction of its teeth, as indicated by arrow in Fig. 2, or in reverse direction, according to.

the direction of motion of the motor.

Adjustment of the chain is efiected by a screw 12 in a headblock '0 slidably supported on the boom and carrying sprocket-wheel D, said screw bearing at its inner end against the boom and when rotated in one or the opposite direction forcing the headblock and sprocket-wheel D from sprocket-wheel B, or permitting approach, and thereby tightening or loosenln the chain.

Fixed upon t e arm F is a segment ear h, with which meshes a worm h upon a shaft b mountedin standards upon the bed and carrying a bevel gear 4;, meshing with a bevel gear 70 fast upon a gear-shaft k mounted in standards of the bed and supporting loose thereon oppositely-disposed bevel gears Z, m, each constructed to form at its inner face a clutch-member ada ted to be engaged by a corresponding member of a clutch I splined to shaft k and of such width as to stand in median position between and free from both gears Z and m, as shown in Fi 2, but to be moved by means of a controlling-handle J into engagement with either gear, while re maining in rotative connection with shaft is. A worm s on shaft b, drives wormwheel r on shaft 0, mounted above the "bed and carrying a bevel gear 1' meshing at opposite sides with and driving in opposite directions constantly gears Z and m. Motion is thence'transmitted in one direction or the opposite, clutch I being in engagement with one or the other of gears Z, m, to shaft k gears 7c and l, shaft worm h and gear it, whereby arm F is swung, correspondingly swinging boom 0 "and chain E 1n one or the other direction about the swinging axis.

Control of swinging movement is by means of handle J, by movement of which in one direction or the other clutch I is thrown at will into connection with either constantlymoving bevel 'g'ear Z or m and thereby swinging motionin one or the opposite direction imparted; or withdrawn to median position, in which position swinging movement is discontinued and no such movement imparted to the boom and chain. The chain comprises links, alternately wide and narrow,

each link composed of opposed. parallel link v links are successively open'links.

members, the link-members 1' of the narrow links having each teeth, one, at each end of the link-member, projecting outwardly, forwardly and laterally in the same direction from the body of the link, the teeth of eachmember in the same direction as the teeth of the other member; and the link-members 1 of the wide links having each teeth, one at each end of the link member, projecting outwardly, forwardly and laterally in the same direction from the body of the link, the teeth of each member in divergent direction from the teeth of the other member; and all the teeth of each narrow link in divergent direction from the: teeth of the succeeding narrow link. The teeth of the wide links roject laterally at each side of the chain, lieyond the teeth .of the narrow links. The Pins 1* in openings in the link-members space the linkmembers and connect the same and the-links. Any suitable form of chain may be employed. The leg 6 is located at the forward, narrow end of the bed A. The lower end of said leg 6 is pointed, and the point is rounded or otherwise formed so as to engage the minefloor at differentangles, thereby affording a universal support at the swinging axis of and withinthe chain, with which cooperate the "supports t, t, arranged equidistantly from and triangularly therewith, rearwardly and at each side thereof, and at the opposite side of the swinging axis from the cuttlng field of the chain, to determine by engagement with the mine-floor or a rest thereon the level arrangement or desired inclination of the cutting-chain.

By constructing thebed with a'narrow end, 4

as described, and pivoting the chain-boom at the said narrow end, the axis of the boom is enabled to be brou ht close to the working face of the coal, an rigidity of support is afforded for the boom close to the face, thereby enabling deep and eifective cutting to be accomplished by the chain.

The wheels N, N, extend downwardly below the legs t, t, and provide supports'hlgher than the legs, thereby when ap ed increasing the rear height of the machine and lowering the chain height. They facilitate transfer of the machine between successive cutting operations.

The invention is not limited to the details of construction shown and described.

I claim. i

1. A post adapted to engage the minefloor, a driving-sprocket wheel upon the said post, a cutting-c ain upon the said drivingsprocket wheel and having an axis within the said post, means supporting the said cuttingchain in position for cutting, means for operating the said driving-sprocket wheel for driving the said cutting-chain for cutting,

and means for swinging the said cuttingchain about the said post.

2. A post adapted to engage the mine floor, a driving-sprocket wheel upon the said post, a boom pivoted upon the said post, a cutting-chain upon the said driving-sprocket wheel and carried by the said boom and havingan axis within the said post, means for operating the said driving-s rocket wheel for driving the said cutting-c ain for cutting,

and means for swinging the said boom about the said post. I i

3. A bed, a post supporting the said bed, a driving-sprocket whee upon the said post, a boom pivoted upon the said post, a cuttingchain upon the said driving-sprocket wheel and carried by the said boom and having an axis within the said post, means carried by the said bed for operating the said drivingsplrocket wheel for driving the said cuttingain for cutting, and means carried by the said bed for swinging the said boom and the said cutting-chain about the'said post.

4. A bed, posts sup orting the said bed, a

driving-sprocket whee upon one of the said posts, a boom pivoted upon the said post, an arm pivoted to an extension of the said post and supporting the said boom, a cuttingchain upon the said driving-sprocket wheel and carried by the said boom and having "an axis lying within the said post, means carried by the said bed for operating the said driving-sprocket wheel for driving the said outting-chain for cutting, means carried by the said bed for swinging the said boom and the said cutting-chain about the said 0st, and a jack connected with the said bed or bracing the same.

5. A cutting-chain, a post, a boom pivoted upon the said post and carrying the said outting-chain, said post being adapted at its lower end to engage the mine-floor within the said cutting-chain, means for operating the said cutting-chain for cutting, and means for swinging the said boom about the said post.

6. A cutting-chain, a post, a boom pivoted upon the said post and carrying the said outting-chain, the said post being adapted at its lowerend to engage the mine-floor within the said cutting-chain and in line with the swing ing axis of the said .boom, means for operat-' said posts and carryingth'e said cuttingchain, said .post being adapted'at its lower end to engage the mine-floor within the said cuttingchain, means for operating the said cutting-chain for cutting, and lmeans for swinging the said boom about thefsaid post.

8. A cutting-chain, a post adapted at its lower end to engage the mine-floor within the said cutting chain, a boom continuous and rigid throughout its length pivoted upon the said post and extending within the said cutting-chain and carrying the said cuttingchain, means for operating the said cuttingchain for cutting, and means for swinging the said boom-about the said post. I

9. A cutting-chain, a bed, posts below the said bed adapted to engage the mine-floor and supporting the said bed, a boom pivoted below the said bed u on one of. the S8116. posts and carrying the said cutting-chain, means for operating the said cuttingbhain for cutting, means for swingin the said boom about the said 0st, and a j ac for bracing the said bed 1002. ed at the upper side of the same between the said posts.

10. A cutting-chain, a bed having a narrow end, a post adapted to engage the minefloor supporting the said bed and located at the said narrow end of the same, a boom piv oted below the said bed upon the said post and carrying the said cutting-chain, means for operating the saidv cutting-chain for cutting, and means for swinging the said boom about the said post.

GESA SANTA.

Witnesses J. L. SMITH, J. 0. SMITH.

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