US1660083A - Mining machine - Google Patents

Description

Feb. 21, 1928.

E. c. MORGAN MINING MACHINE Filed Oct 23, 1922 2 Sheets-Sheet l fldezzi'or; N mad 6.1%);9072 5 Q'Z Feb. 21, 1928. 1,660,083

E. C. MORGAN MINING MACHINE Filed Oct. 25,1922 2 Sheets-Sheet IIITTTWTETWTITWIE lllill/lm 55 4g ,jkdeizzvz? ZZZ/mind C 1255942 ilk which an electric motor 35 is Patented Feb. 21, 1928.

UNITED STA S .C MORGAN, OF NEW YORK,

SAID EDMUND N. Y.'; OLIVE EUGENIE MORGAN EXEGUITRIX or.

c. MORGAN, DECEASED.

MINING MACHINE.

Original application filed. April 24, 1916, Serial No. 93,0518.

Divided and this application filed October 23,

1922. Serial No. 596,214

This invention relates to machines for mining coal and other similar substances and has for its object he provision of a device of the character named which shall be of improved construction and more efficient and economical in operation than devices heretofore known.

The present invention is a division of my copending application Serial No. 93,048, filed April 24, 1916, for an improvement in mining machines.

Other objects of the invention will appear hereinafter, the novel features and combinations being pointed out in the appended claims.

In the accompanying drawings,

Fig. 1 is an elevational view of my improved mining machine;

Fig. 2 is a sectional plan view taken on the line 22 of Fig. l and enlarged; and

Fig. 3 is a sectional elevational view taken on the line 33 of Fig. 1, looking in the direction of the arrows.

In the drawings the number 20 designates the. main base plate, which maybe of any size or dimensions or weight desirable for carrying the apparatusduring its operation. This plate 20 is provided at its forward end with an xtension 23 having a standard 24: projecting upwardly therefrom and secured to the plate by means of cap screws 25, (Fig. l). The standard 2t carries a pair of pivot bolts 26 and 27, which project from the standard at opposite sides thereof to form pivotal supports for the swinging; arms 28 and 29, there being a pair of arms 28 supported on thelower bol 26 and a second pair of arms 29 supported on the upper bolt 27. The arms 28 and 29 are pivoted at the forward ends on pivot bolts 3:30 and 31 re spectively, which are carried by a link 2-3 extending between the pivot bolt. ill and i151 and holding the latter in fixed relation to one another. By means of this consia vertically swinging arm is provided wh ch constitutes a parallel motion device, arranged to hold the link 32 in a vertical position regardless of the angle of the swinging arm.

The arms 28 are connected near the pivot 26 by a plate 32 secured to the inner side of each arm by means of cap screws 34. The plate 33 constitutes a platform on mounted connected bya worm and worm wheel enclosed in the casing 36, with a shaft STmounted in journals carried by the arms 28. The shaft 37 has secured which mesh with the teeth of arcuate racks l secured to the base plate 23' and projecting upwardly therefrom as shown in Fig. l The oper t'on of the motor drives the pinions 3 9 and thus effects swinging of the arms 28 and 29 upwardlyand downwardly about their pivots 2G and 27 the direction of the pivotal movement ofthe arms 28 and 22 depending upon the direction of rotation of the motor 35. This motor is governed by one of a series of controllers, which are connected with the various motors for dri ine the different parts of themachine, and such controllers are arranged to govern both the speed and direction of rotation of the motors which they respectively. control.

The cutter headfor severing the mate rial from the mine vein is carried by the link 32. Projecting. forwardly in a horizontal direction on a line with the lower portion of the arm 28 and rigidly connected to the link 32 preferably by being made intogral therewith is a supporting bracket which is extended laterally to form a circular ack 43 which is rigid with the bracket The center of the rack 43 is provided with an opening in which a bolt 44- is journalcd for rotation, as shown in Fig. This bolt is held in place by a nut 45, and the upper end of the bolt passes through a yoke member 46, which is arranged to rotate with the bolt 4L4 about the axis formed by the bearing of the bolt in the bracket 42. The bolt at is provided with a rim or head L7, which securely holds the yoke 46 in place. The lower member of the yoke s6 is extended laterally, as shown in Fig. 3, to form a supporting platform or table 48, on which is mounted an electric motor 49 for operating the mechanism on thecutter head. At the forward end of the platform l8 the yoke 46 is continued forwardly to form the lower run 50 of a loop chain core-cuttenwhich has an unobstructed core opening therethrough. The arm 5.0 of the cutter frame is'olfset downwardly from the level of the platform 48, as shown in, Fig. l. The connecting bar 1projects upwardly from the arm and is connectedat its upper end with the upper cutter frame bar 52. As shown in Fig. 3,

thereto a pair of pinions'39,

the upper member 03 of the yoke 46 is secured to a bracket 55, which extends forwardly from the upper end of the link 32, being rigidly connected to the latter.

The arm 53 is held for pivotal movement relatively tothe bracket 55 by means of a bolt 58, which is journaled in the bracket and held in place by a nut 57. The lower end of the bolt 56 is provided with a flange or head 58 which holds the arm 53 in place relative to the bracket 55. The bolts 4: 1 and 56 are in axial alignment with one another and together constitute the pivot about which the yoke 46 swings horizontally. The bracket 55 is extended laterally to form a circular plate 60 having a down-turned flange 61 at its periphery provided with internal rack teeth 62, forming a circular rack. In the present application, I have shown two chain cutters so that feeding may be effected for cutting purposes in both directions of arcuate swinging movement of the cutting mechanism, the latter being driven by one motor and fed arcuately by a sepa rate motor.

As shown in Fig. 2, a pair of cutter chains 170 is provided, one cutter chain at each side of the cutter frame 171, the latter being the vertical length of the loop chain core-cutter and connected to the lower length 50 and the upper length 52 to form continuations of the latter as shown in Fig. 1. The endless chain cutters 170 are operated by sprocket wheels 172 mounted on the shaft 173 journaled in bearings 17% supported on the lower arm 175 of the yoke 46. The shaft 173 is driven by a spur gear 176, which meshes with a pinion 177 driven by the motor 19.

The yoke 46 is rotated about its vertical axis 179 by means of an electric motor 180, also supported on the platform 18, and arranged to drive a worm 181 which meshes with a worm wheel 182. The latter is rigidly connected to a pinion 183, which meshes with the fixed circular rack 43 secured to the lower bracket 12 of the link 02.

13y means of this construction, since the rotation of the cutter frame is accomplished by a motor independent of the motor which drives the chains, it is evident that the rela tive speed of the feed and of the driving of the cutter chains may be varied to comply with various conditions of operation. Also the cutter may be made to operate while the cutter frame is being fed in either direction.

This may be an advantage under some conditions, since it enables the operator to make a cut during both the forward and return movement of the cutter frame. In this way a cut may be made at one level and while the cutter frame is being fed in one direction, and the cutter head may then be raised or lowered to a different level and. a second cut made during the return movement of motor 180 is a series wound electric motor. 7

At the same time the speed of driving the cutter chains may be maintained until the hard substance has been cut through. When a single motor is used for both driving the chain and for feeding it, the slowing down of the feed will also slow down the driving of the chain.

In operation, the machine may be located in a mine chamber as shown in Fig. 1 and the lower cut made across the mine wall. The motor 35 may then be operated to' lift the cutting mechanism to the position shown in Fig. 1, and another cut made across the mine wall by feeding movement in the opposite direction, so as to use the chain cutter on the opposite side of the cutter frame. After this intermediate cut across the mine wall has been completed, the motor 35 may again be operated to adjust the kerfcutting mechanism to make the out along the roof. It should be particularly noted that by reason of the parallel motion mechanism the floor kerf and the roof kerf will be in horizontally spaced apart parallel planes. It is desirable to have a uniformly level floor to facilitate forward movement of the mining machine to a new location and to facilitate the locating and the operating of loading apparatus. The adjustments enable the apparatus to readily remove coal from veins of varying thicknesses whether the vein pitches upwardly or downwardly either at the floor or at the roof. Vlhile a flat floor is more desirable than a flat roof, a flat roof is in some instances desired on account of facilitating the use of certain kinds of roof props.

Obviously those skilled in the art may make various changes in the details and arrangcn'ient of parts without departing from the spirit andv scope of my invention as defined by the claims hereto appended, and I wish therefore not to be restricted to the precise construction herein disclosed.

Having thus fully disclosed an embodiment of n'iyinventio-n, whatl claim anddesire to have secured by Letters Patent of the United States, is:

1. In a mining machine. the combination with a supporting frame, of a loop-shaped core cutter, means for feeding saidcutter in different directions, means carried by said cutter, and operable for severing material in either direction of movement of said cutter, and means for adjusting said cutter as a whole relatively to said frame into different cutting positions.

2. In a mining machine, the combination with the supporting frame, of a cutter support, a loop core-cutter frame carried by aid. cutter support, means for adjustin said cutter support, together with the entire core-cutter frame relative-to said supporting frame .to different cutting positions, means for moving said loop core cutter-frame in opposite directions, and mechanism carried by said cutter-frame for severing material during movement of said cutter support in either of said opposite'directions.

8. In a mining machine, the combination with a cutter-head frame having upper and lower spaced-apart arms, of a yoke pivoted between said arms for movement on an upright axis, a loop chain core-cutter having an unobstructed core opening therethrough and mounted on said yoke for movement therewith, means carried by said yokefor effecting feeding movement of said loop chain core-cutter in opposite directions, and means connected to said cutter-head frame for adjusting the elevation of said loop chain core-cutter in its entirety.

4. In a mining machine, the combination with a supporting frame, of double loop chain core-cutting mechanism adapted to cut a core in either direction of feeding movement, means for mounting said cutting mechanism on said supporting frame for adjustment in elevation relative thereto, means for feeding said cutting mechanism in opposite directions, and means fordriving saio cutting mechanism toeffect the cutting of a core during such feeding movement in either direction.

5. In a mining machine, the combination with a supportingframe, of a loop-shaped core-cutter having an unobstructed coreopening thcrethrough, means for mounting said corecutter on said supporting frame for adjustment in elevationrelative thereto, means for feeding said core-cutter in opposite directions, and means for driving said corecutter to effect severing of material during such feeding movement in either direction. r

(i. In a mining machine, the coml'iination with a supporting frame,'of a loop-shaped chain core-cutter, means for carrying said core-cutter on said frame for adjustment in elevation relative thereto, said core-cutter comprising a cutter frame having an unobstructed core-opening therethrough with chain cutters on opposite edgesof said cutter f2 .mc surrounding said core-opening, means for feeding said core-cutter in opposite clirections, and means for driving said chain cutters to sever material during feeding movement of said. core-cutter in either direction.

7. In a mining machine, the combination with a supporting frame, of core-cutting mechanism having upper and lower runs rectilinear in elevation and comprising opposite chain cutters to cut during opposite fee-ding movements, and means for adjusting holding the entire core-cutter relatively to said frzune to secure the cutting of a plane l-zerf at the floor of the mine chamber in one operation in either direction of feeding movement and the cutting of a plane roof hcrf in another operation in either direction.

- 8. In amining machine, the combination with a supporting frame, of a loop-shape fl cutter frame having an unobstructed co e-- opening therethrough, a pair of chain cutters one at one'edgeof said cutter frame and the other at the other edge thereof, means for supporting said cutter frame and chain cutters for adjustment as a whole in ele vation relative to salt supporting frame,

and means for operating said chain cutters ttOCflt in either direction of movement of said cutter frame. I

9. In a mining machine, supporting frame, a cutter-head thereon, means or holding said cutter-head in one position relative to said frame while a cut is be ig made, a loop cutter carried by said cutterhead and movable thereon in one direction during the melting of said cut, means for g 'd cutter-head in a second po ition relative to said frame, and m ior operating said cutter in the opposite direc tien while said cutter-head is in said second position for makinga second cut.

10. In a mining machine, the combination with .a support, of a cutter-frame pivoted thereto, a chain cutter on said cutter-fr c an electric motor mounted on the cutterframe for driving said chain cutter, and a separate electric motor mounted on said cutter-frame and connected to said support teinove the cutter 'rame relatively to said support to effect feeding of said chain. cutter.

11. In a mining machine, the combination with a support, of a cutter-frame pivoted thereto, a chain cutter on said cutter-frame,

means comprising an'clcctric motor mounted on said cutter-frame for driving said chain cutter, an independent self-contained power- ,o-perated 'illGCllLlHlSlil; comprising a separ electric motor mountcd on said cutter-frame andconnected to said sun ort to swin said operation in opposite directions of feeding movement respectively, a supplemental frame mounted on said supporting frame for feeding movement relative thereto, means :or

mounting said cutte frame on said supplemental frame for bodily movement therewith, means on said supplemental frame for til) driving said chain cutters, and means separate from said driving means for feeding said chain cutters in opposite directions.

13. In a mining machinc, the combination with core-cutting mechanism having an unobstructed core opening therethrough and capable of cutting in reverse directions of feeding movement, a swinging frame for supportingsaid core-cutting mechanism, a motor mounted on said swinging frame, means connected between said motor and said core-cutting mechanism for actuating the latter, a separate motor mounted on said swinging frame, frame for pivotally supporting said swinging frame, and gearing connected between said second-named motor and said supporting frame for effecting the feeding of said Core-cutting mechanism in reverse directions.

14.. In a mining machine, the combination with a supporting frame having spacedapart arms, of a supplemental frame journaied to said arms and between the same for arcuate movement relative to said supporting frame, a chain cutter frame having an unobstructed core-opening therethrough and mounted on said supplemental frame for bodily movement therewith, cutter chains carried by said cutter frame on opposite sides thereof, driving sprocket mechanism for said chains and mounted on said supplemental frame, means on said supplemental frame for driving said cutter chains, and means mounted partly on said supporting frame and partly 011 said supplemental frame for feeding the cutter chains in opposite directions.

15. In mining machine, the combination with a double loop chain core cutter for operation in opposite directions of feeding movement, a frame for supporting said corecutter, a second frame for pivotally supporting, said first-named frame, means mounted on said first-named frame for actuating said core-cutter, a motor mounted on said first named frame for driving said actuating means, a second motor mounted on said firstnamed frame, and gearing partly mounted on said first-named frame for feeding said core-cutter in reverse directions. 7

16. in a mining machine,"the combination with core-cutting mechanism having an unobstructed core opening therethrough, and capable of cutting cores in reverse directions of feeding movement, of a frame for supporting said core-cutting mechanism, a second frame for carrying said first-named frame for pivotal movement on an upright axis means for feeding said core-cuttin 7 L (J mechanism in reverse directions, and ap-' paratus for moving said second-named frame up or down together with said first-named frame while maintaining said first-named frame on an upright axis. I

17. In a mining machine, the combination with a main frame, of spaced-apart links pivoted at their rear ends in vertical alignment to said main frame, a cutter-head having pivotal connections in vertical alignment with the forward ends of said links, a loop chain core-cutter frame having an unobstructed core opening therethrough, and mounted for pivotal movement on an upright axis on said cutter-head, chain cutters mounted on opposite sides of said core-cutter frame, means mounted on said core-cutter frame for actuating both of said chain cutters, means mounted partly on said chain cutter frame and partly on said cutter head for effecting reverse feeding movements of said chain cutter frame, and means connected to an intermediate portion of one of said links for adjusting the elevation of'said cutterhead and the elevation of the chain-cutters.

18. In a mining machine, the combination with a supporting frame, of core-cutting mechanism having means for cuttingin reverse directions, including spaced-apart parallel planes both of which are substantially horizontal, of a cutter-head for pivotally supporting said cutting mechanism on a substantially upright axis, means for operating said cutting mechanism including the feed thereof in reverse directions, means for supporting said cutter-head together with said cutting mechanism in various positions relative to said supporting frame while maintaining said axis upright and the spaced apart cutting planes aforesaid substantially horizontal, and means for adjusting the elevation of said cutter-head and holding the same at adjusted elevations relatively to said frame.

19. In a mining machine, a loop-shaped core-cutter, means for feeding said cutter in different directions, means carried by said cutter and operable for severing material in either directionof movement of said cutter,

and means for adjusting said cutter as a whole into different cutting positions.

20. In a mining machine, a cutter-head, a looped core-cutter carrier on said cutterhead, means for adjusting said cutter-head together with the entire core-cutter to different cutting positions, means for moving said cutter in opposite directions, and mechanism carried by said cutter for severing material during movement of said cutter in either of said opposite directions; i

In testimony whereof I have signed my name to this specification on this 19th day of October, A. D. 1922.

EDMUND o MonGAN

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