Nova Patents
US1526558A

Mining machine

Abstract

This record has no abstract on file.

US1526558A, drawing sheet 1
Sheet 1 of 8

Term

Term ended

Expired 17 February 1942, 84.6 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

130 claims: 130 independent, 0 dependent

  1. 1
    I claim:1. A mining machine comprising a supporting frame, loop-shaped core-cutters each having an unobstructed core-opening there- 80 through, means for operating said cutters to sever a section of material in a mine vein, and means mounted on said supporting frame in position for dividing the severed section of material into separate parts. 85
  2. 2
    A mining machine comprising supporting framework, means mounted on said framework for cutting a single core section in a mine vein, and additional cutting means separate from said first-named cutting 90 means but in position on said framework for transversely cutting said section into separate parts.
  3. 3
    A mining machine comprising supporting framework, of a loop core-cutter having 9o an unobstructed core-opening therethrough and mounted on said framework in a position to cut a horizontal core of material in a mine vein from one side of said framework toward the longitudinal axis thereof, 100 and additional cutting means mounted on said framework in position to cut an upright kerf to transversely' sever the cut core into separate parts.
  4. 4
    A mining machine comprising a sup- 105 porting frame, a plurality of loop core-cutters each having an unobstructed core-opening therethrough and mounted on said frame in position to cut a core section in a mine vein, and means also mounted on said 110 frame, in position for transversely severing said section into separate parts, and means for operating said cutting means and said transverse severing means to dislodge from the mine vein a core section divided into 115 separate parts.
  5. 5
    A mining machine comprising a supporting frame, a pair of loop core-cutters each having an unobstructed core-opening therethrough and each mounted on said 120 frame for lateral sAvinging movement relatively thereto, means for operating said cutters to cut a core section in a mine vein adjacent said frame, and means also mounted on said frame in position to transversely 125 sever the core section into separate parts.
  6. 6
    In a mining machine, the combination with a supporting frame, of a pair of loop β 1,526,668 chain core-cutters each having an unobstructed core-opening therethrough and mounted for pivotal movement about separate axes spaced from one another, and 5 means for operating said cutters including feeding movement thereof about said axes simultaneously and toward each other to cause each to cut a core section in a mine wall, 10
  7. 7
    A mining machine comprising a supporting frame, a pair of loop cutters mounted on said frame for pivotal movement about spaced upright axes, means for operating said cutters including the feed thereof 15 toward each other about said axes, and a separate cutter mounted on said frame in position for severing the material disconnected by said loop cutters.
  8. 8
    A mining machine comprising'a sup20 porting frame, a pair of loop core-cutters mounted on said frame and each having an unobstructed core-opening therethrough, means for operating said cutters including pivotal movement thereof relatively to said 25 frame, to sever a section of material from the mine vein, an additional cutter mounted on said frame in position for a feeding path of travel between said loop core-cutters, and means, for operating said additional cutter 30 to divide the core cut by said loop core-cutters.
  9. 9
    In a mining machine, a pair of loop cutters mounted for pivotal movement about spaced upright axes, and a third cutter mov35 able in a vertical plane between said axes.
  10. 10
    In a mining machine, the combination with a supporting frame, of means mounted thereon in position for cutting a core section in a mine vein provided with a vertical kerf 40 for division of the core section, and means mounted on said frame for moving the separate portions of said section from the mine wall along separate paths toward loading position. 45
  11. 11
    11· In a mining machine, the combination with a supporting frame, of means for cutting a core section in a mine vein, operatorcontrolled power - operated mechanism mounted on said supporting frame in co50 operative relation with said cutting means for dividing the cut core section, and means । for moving separate portions of the cut s section away from one another and toward :loading position. ( 55
  12. 12
    In a mining machine, the combination 1 with a supporting frame, of means mounted :thereon for cutting a core section in a body. 1 of material, mechanism mounted on said s supporting frame in cooperative relation s 60 with said cutting means for dividing the 1 core section into substantially half por- j tions, aiid means for engaging such half portions and moving them oppositely over c different paths toward loading position. i
  13. 13
    In a mining machine, the combination 65 I with a supporting frame, of a double core• cutter mounted on said frame in position I for movement from the end of the core to ' the center thereof, means for operating said ! double core-cutter to cut a core section in 70 • a mine vein, means mounted on said sup> porting frame in position to act on the center of said core to divide the same approximately in halves, and means mounted on said frame for moving the respective 75 • halves from their intermediate positions ’ toward loading position along opposite sides of said supporting frame.
  14. 14
    In a mining machine, the combination with a supporting frame, of means mounted so thereon in position to cut a crescent-shaped core-section from a mine vein adjacent said frame, means mounted on said frame in position to act transversely of said coresection to divide the same into two parts 85 while still retaining its original position in the mine vein, and means mounted on said frame in position to take the twoi parts of the core-section from the positions assumed thereby after being completely cut ( J0 out from the mine vein toward loading position.
  15. 15
    In a mining machine, the combination with a supporting frame, of a pair of loop chain core-cutters each having an un- 05 obstructed core-opening therethrough and mounted on said frame for pivotal movement relatively thereto on upright axes, means for operating said loop chain corecutters including swinging feeding move- 100 ment thereof about said upright axes toward one another to cut a core-section extending through said unobstructed coreopenings in opposite directions, means mounted on said frame between said.core- 105 cutters in position to cut the core-section in two, and means mounted on said frame to act on the cut core-sections in positions assumed thereby after being completely cut out from the mine vein and taking the 110 respective portions of said core along opposite sides of the frame toward loading position.
  16. 16
    In a mining machine, a pair of loop cutters mounted for pivotal movement about 115 spaced upright axes, means for swinging said cutters toward one another to cause each of said cutters to disconnect a portion of a crescent-shaped core section from a mine vein, an upright cutter movable be- 120 tween said axes to separate the portions of said core section, and means for moving said portions away from one another and from, their severed position toward loading position. 125
  17. 17
    In a mining machine, a pair of loop chain core cutters each mounted for pivotal movement on its own separate axis, and 1,526,668 *7 means for operating said core cutters including simultaneous feeding movements toward each other to cut core sections in a mine wall. 5
  18. 18
    In a mining machine, a pair of loop chain cutters, means for swinging said cutters about upright axes toward and away from one another, and motors carried by said cutters and movable therewith for op 10 erating the chains thereof.
  19. 19
    In a mining machine, the combination with a supporting frame, of a loop chain core-cutter comprising a cutter chain and a frame for supporting the same in loop 15 formation with an unobstructed core-opening therethrough, a motor carried by said cutter frame and movable therewith for driving said cutter chain, and hydraulic power mechanism for feeding said cutter -° chain by swinging said cutter frame about an upright axis and locking said cutter frame against retrograde movement.
  20. 20
    In a mining machine, the combination with a supporting frame, of a loop chain core cutter comprising a cutter chain and a cutter frame having an unobstructed core-opening therethrough, a gear segment attached to said cutter frame for rotation therewith about an upright axis, a rack in mesh with said gear segment, a hydraulic plunger for operating said rack to effect forward feeding movement of said cutter chain, and mechanism for preventing retrograde movement of said plunger to lock ::5 the cutter chain in the forward position to which it has been fed and prevent retrograde movement of said cutter chain.
  21. 21
    In a mining machine, the combination with a supporting frame, of a pair of m loop chain core-cutters mounted thereon for swinging, feeding movements on spacedapart axes and each comprising a chain cutter and a frame for supporting said chain in loop formation, means for operating said -1 > cutters including feeding movement thereof by swinging the said cutter frames toward one another to sever a core section from a mine vein of material readily broken, and two aprons one attached to one of said 53 cutter frames and the other attached to the other of said cutter frames, and means for pulling said aprons to break the core material in two and move the respective portions rearwardly toward loading position. 55 ,
  22. 22
    In a mining machine, a pair of loop chain cutters mounted for pivotal movement toward and away from one another about upright axes, means for swinging said cutters toward one another to cause said cutters to co-operate to sever a core section from a mine J vein, means for severing from one another the portions of said core sections severed by said cutters, and means for moving each of said cutters, together·?with the ( '·' portion of material severed thereby, rear wardly to move said material away from the severed position toward loading position.
  23. 23
    In a mining machine, a cutter head, a pair of loop cutters mounted for pivotal 70 movement about upright axes on said head, means for swinging Said cutters toward one another to sever a section of material from a mine vein, a third cutter for dividing into two sections the material severed from said 75 loop cutters, aprons secured to each of said loop cutters and arranged to move therewith into the kerf formed thereby, and me’ans for exerting tension on said aprons to draw said loop cutters backward together 80 with the material severed thereby to move the disconnected portions of said material over separate paths from its native position toward loading position.
  24. 24
    A mining machine comprising a sup- 83 porting frame, two chain core-cutters mounted on said frame and each comprising a cutter frame and having an unobstructed core-opening therethrough and an endless chain-cutter mounted thereon, means 90 for operating said chain core-cutters including feeding movement thereof to cut core sections in continuation of e'ach other to form a single core in a mine Avail, and operator-controlled power-operated mechanism 95 mounted on said frame in cooperative relation with said core-cutters to divide the core while on said frame to facilitate the handling thereof.
  25. 25
    In a mining machine, the combination with a supporting frame, of cutting mechanism, a bracket for supporting said cutting mechanism, an upright pivotal support for said bracket, a rack and pinion for rotating said bracket about said axis to effect hi.'» feeding movement of said cutting mechanism, a sprocket wheel on one side of said bracket for driving said cutting mechanism, a motor carried by said bracket on the side thereof opposite said sprocket wheel, driv- no ing connections between said motor and said sprocket wheel, and means for operating said rack and pinion to effect, feeding movement of said cutting mechanism.
  26. 26
    A mining machine comprising a sup- 115 porting frame, two cutter frames each having an unobstructed core-opening therethrough and each mounted on said supporting frame for swinging movement toward and away from the other cutter frame, chain 1cutters one for each of said cutter frames . me’ans for driving said chain cutters along said cutter frames, and means for swinging said cutter frames contemporaneously in opposite directions respectively on spaced- 125 apart axes during the driving of said chain cutters to cut arcuate sections of the core in a mine wall in ’arcuate alin_ement with each other.
  27. 27
    In a mining machine, the combination 130 1,526,658 with a pair of pivotally mounted swinging cutter-frames, each having an unobstructed core-opening therethrough, of endless chains mounted on said cutter-framed and provided 5 with cutting devices for cutting core sections in the face of a mine wall, means for driving said chains, means for swinging said cutter-frames from a diverging position toward a parallel position, and mechanism 10 mounted in position to cut a kerf transversely of the core section when said firstnamed cutters 'are in diverging relation.
  28. 28
    In a mining machine, the combination with a supporting frame, of an elevated 15 slideway thereon, a horizontal plate movable along said slideway, 'an upright frame suspended from said plate, an endless chain cutter mounted on said upright frame to travel around the periphery thereof while 20 suspended from.said plate, means for moving said pl’ate along said slideway to feed said chain cutter into the material to be operated upon, and a motor carried by said plate and movable therewith in position 25 to drive said chain cutter in all of the positions which it assumes relative to· said supporting frame while suspended from said plate.
  29. 29
    In a mining machine, the combination oo with a supporting frame, of a chain kerf cutter comprising an upright frame and adapted to cut a nlane kerf, means for driving said chain cutter with its lower run Ί _ traveling toward said supporting frame :>·> after emerging from the mine wall adjacent said supporting frame, means for feeding said chain cutter rectilinearly along lines in the plane of said upright frame to cut a kerf in the plane of said chain kerf 40 cutter, and a conveyor mounted on said supporting frame in fixed relation thereto adjacent the lower run of said chain cutter in position for removing cuttings delivered to it by said lower run.
  30. 30
    In a mining machine, the combination with a supporting frame, of a plane kerf cutter comprising an upright frame and a cutter chain traveling about the periphery of said frame in the upright plane of the · >υ latter, means for driving said chain cutter in an upright plane to cut an upright plane kerf, means for feeding said kerf cutter along lines in its own plane with a lower rr run of the cutter chain emerging from the ,,J mine wall to deliver cuttings to the said supporting frame adjacent said lower run and .a conveyor on said supporting frame in fixed relation thereto with its path of travel adjacent the various positions of the lower run 00 of said chain cutter where it emerges from the mine wall.
  31. 31
    In a mining machine, the combination with a supporting frame, of a plurality of chain cutters each having a separate pivot and each having relatively upper and lower runs, means for driving said chain cutters with their lower runs emerging from the mine wall adjacent the forward end of said supporting frame to effect the delivery of cuttings from the mine Avail to said support- 70 ing frame, and a single conveyor mounted on said, supporting frame for movement along the forward portion thereof in position to receive the cuttings from the loAver runs of said chain cutters as said lower runs 75 emerge from the mine Avail and remove such cuttings toward loading position,
  32. 32
    In a mining machine, the combination Avith a supporting frame having an upper . forward extension Avith an unobstructed 80 space beneath the same, of a guideAvay extending along said upper forAvard extension, a supplemental frame movable along said guideway, an upright cutter frame carried by said supplemental frame and movable 85 therewith, an endless chain cutter mounted on said upright frame to travel around the periphery thereof, means mounted on said supporting frame for moving said supplemental frame along said guideAvay to effect 90 a rectilinear feeding movement of said chain cutter to cut an upright plane kerf in the material to be operated upon, and a motor carried by said supplemental frame and movable there with in position to drive said 95 chain cutter in all the positions which the latter assumes relative to said supporting frame.
  33. 33
    In a mining machine;the combination with a supporting frame, having an upper 1°° forward extension with an unobstructed space beneath the same, of guideAvays. on said upper fonvard extension, a kerf cutting machine mounted on said extension for feeding movement along said guideways in po- 105 sition to cut an upright plane kerf in a mine vein, a lower forward extension on said supporting frame beneath said unobstructed space, and a conveyor on said lower extension in position to receive cuttings' from no said kerf cutting machine and convey such cuttings toAvard loading position.
  34. 34
    A mining machine comprising a pair of core-cutting devices, a pair of supports one for each of said core-cutting devices, 115 means for initially advancing said core-cutting devices into the Avork Avhile operating the same and for continuing such movement of said cutting devices in opposite directions respectively and in directions transverse to 120 their initial advance while continuing to operate said cutting devices, and operatorcontrolled poAver-operated mechanism mounted in position to act on the core transversely thereof to divide the same to 125 facilitate handling thereof. .
  35. 35
    A mining machine comprising tAvo cutter ^frames each having an unobstructed core opening therethrough, chain cutters one for each of said cutter frames, separate 130 1,526,568 Ο pivotal mountings for said cutter frames, and means for contemporaneously swinging said cutter frames on said pivotal mountings in opposite directions while operating both 5 of said chain cutters.
  36. 36
    A mining machine comprising two cutter-frames each having an unobstructed core-opening therethrough, chain-cutters one for each of said cutter-frames, means for 10 swinging said cutter-frames contemporaneously in opposite directions respectively while operating said chain-cutters respectively, and means mounted on the machine in position to act transversely of the core to 16 divide the same to facilitate handling.
  37. 37
    A mining machine comprising two cutter frames each having an- unobstructed core opening therethrough, means for supporting said cutter frames with their open20 i n gs opposite each other, chain cutters one for each of said cutter frames, means for swinging said cutter frames contemporaneously in opposite directions respectively, means for operating said chain cutters while thus being fed to entirely sever from a mine wall oppositely extending cores, and a plane kerf-cutter on said frame in position to divide the core.
  38. 38
    In a mining machine, the combina30 tion with a base plate adapted to rest on the floor of a mine chamber, of spaced-apart hydraulic jacks mounted on said base plate in position to engage the roof of a mine chamber and thereby anchor said base plate, ' core-cutting mechanism, a supporting frame for said core-cutting mechanism, pivotal connections between the rear portion of said supporting frame and said spaced-apart hydraulic jacks, and additional hydraulic <0 mechanism connected between said base plate and an intermediate portion of said supporting frame for adjusting the inclination of said supporting frame on its pivotal connections to said hydraulic jacks and <5 thereby adjust the elevation and inclination of said core-cutting mechanism.
  39. 39
    In a mining machine, the combination with a base frame, of spaced-apart hydraulic cylinders mounted on said, base 50 frame, plungers vertically movable one in each of said cylinders, a supporting frame, a core-cutter mounted on said supporting frame for pivotal movement on an upright axis in advance of one end of said sup 85 porting frame, means for pivotally supporting the opposite end of said supporting frame on said plungers for movement up and down therewith, means for controlling the lifting and lowering of said plungers by 00 a pressure medium in said cylinders to vary the elevation of the rear end of said supporting frame, and means for operating said core-cutting mechanism including the feeding movement thereof relatively to said 65 supporting frame on said upright axis.
  40. 40
    In a mining machine, the combination with a frame, of cutting apparatus mounted on said frame, a pivotal support for the rear portion of said frame, spacedapart upright hydraulic motors for adjust- 70 ing rectilinearly and in an upright direction the elevation of said pivotal support, and separate hydraulic mechanism connected to an intermediate portion of said frame and controllable independently of 75 said hydraulic motors for varying the inclination of said frame and said cutting apparatus and also co-acting with said hydraulic motors for varying the elevation of the said frame and said cutting appara- 80 tus as a whole rectilinearly in an upright direction.
  41. 41
    In a mining machine, the combination with a frame, of a core cutter mounted on said frame for feeding movement on an 85 upright axis, a pivotal support for one end of said frame, spaced apart hydraulic jacks applied directly to said pivotal support for adjusting the height thereof, and spaced apart hydraulic jacks applied to an interme- oo diate portion of said frame spaced from said pivotal support for swinging said frame together with said core cutter about said pivotal support.
  42. 42
    In a mining machine, a frame, a pair 95 of loop chain core cutters mounted for pivotal movement about upright axes located adjacent one another on said frame, means for supporting said frame for movement about a horizontal axis at a point re- loo moved from said loop cutters, means for adjusting the position of said horizontal axis, and means for swinging said frame vertically about said horizontal axis.
  43. 43
    In a mining machine, the combination 105 with a hopper, of a conveyer for receiving material from said hopper and moving the same toward loading position, a supporting frame associated with said hopper, kerfcutting mechanism mounted on said sup- no porting frame in position to cut in an upright plane, means for operating said kerf-cutting mechanism including the feed thereof into a mine wall, and means for directing the cuttings from said cutting mech- 115 anism into said hopper.
  44. 44
    In a mining machine, the combination with a base frame, a conveyer having a receiving portion mounted on said base frame, a supporting frame comprising a plate hav- 120 ing a delivery opening therein, a guide plate for directing material from said supporting frame plate onto said conveyer, said guide plate being movable relatively to said supporting frame to permit the latter to be 3 brought into proximity to said base frame, cutting mechanism mounted on said supporting frame in position to operate in an upright plane, and means for conveying cuttings from said cutting mechanism along 330 1,526,568 said supporting frame through said delivery opening into said directing guide plate and onto said conveyer. -,
  45. 45
    A mining machine comprising a sup5 porting frame, a double core-cutter mounted on said frame in position to simultaneously cut the opposite ends of a single core, means for operating said double core-cutter including feeding movement thereof relatively 10 to said supporting frame, a kerf-cutter mounted on said frame in position to divide the core, and means mounted on said frame for directing the dislodged core of material away from the mine wall. 15
  46. 46
    In a mining machine, a cutter head comprising a base plate having an arcuate nbtch formed at the rear thereof through which material is discharged, said plate extending upwardly at the edges of said base 20 plate, a guide plate extending downwardly from said discharge notch, sliding pivotal connections between said guide plate and said side plates, stops for limiting the downward movement of said guide plate, said 25 guide plate being movable upwardly to a position above said base plate.
  47. 47
    In a mining machine, a supporting base, a cutter head' mounted on said base and adjustable vertically relative thereto, 30 said cutter head comprising a base plate having a discharge opening, a guide plate for directing material from said discharge opening, said guide plate being pivotally mounted on said cutter head and normally 35 extending below said base plate ’but being movable to a position above said base plate to permit said cutter head to move down;wardly to a position adjacent said supporting base. 40
  48. 48
    In a mining machine, the combination with a frame adapted to receive material directly from a· mine wall at various elevations, the forward edge of said frame being curved to approximately fit the curved coal 45 face, of means for adjusting the elevation and inclination of the said forward edge of said frame, a movable extension at the forward edgei of said frame and also having a curvature corresponding to the curvature 50 of said frame, said extension being movable beyond the forward edge of said frame to abut against the coal face and fill the gap between the said frame and said coal face when the said frame is varied in elevation 55 and inclination, and hydraulic mechanism for adjusting said movable extension relative to said frame.
  49. 49
    In a mining machine, the combination with a supporting frame, of apparatus 60 mounted on said frame for dislodging material from a mine wall, of means for operating said dislodging apparatus including feeding movement thereoi relatively to said supporting frame, an extension fixed to said 65 frame and having a forward edge conform ing to the path of feeding movement of said dislodging apparatus and adapted to fit the coal face left after operation of said dislodging apparatus, a movable extension mounted on said fixed extension, resilient 70 means for holding said movable extension normally in retracted position, and hydraulic mechanism for moving the movable extension against the action of said resilient means to abut directly against the mine wall 75 below such dislodging apparatus to fill the gap between said fixed extension and the mine wall while said frame and. said fixed extension remain stationary.
  50. 50
    In a mining machine, the combination 80 with a supporting frame, of cutting apparatus mounted on said frame, means for pivotally supporting said frame and said cutting apparatus for adjustment in elevation and inclination, an adjustable exten- 86 sion for the forward end of said frame in a position to abut against the mine wall below the cutting apparatus to fill the gap between said frame and the mine wall for various elevations of said cutting apparatus, 90 resilient means normally retracting said extension member, and meansi for positively moving said extension member forwardly against the tension of said resilient means and for holding said extension member sta- 95 tionary in its extended position during the operation of said cutting apparatus above said extension.
  51. 51
    A mining machine comprising supporting framework, a plurality of hydraulic 100 motors for adjusting the position of said framework, cutting apparatus mounted on said framework, means comprising a plurality· of hydraulic motors for operating said cutting apparatus, a continuously operable w pump for supplying a fluid pressure medium to - all of said hydraulic motors, a safety valve for controlling the pressure of said medium, and a plurality of control valves for governing said positioning motors 11° independently of the governing of said hydraulic motors for said cutting apparatus.
  52. 52
    A mining machine comprising supporting framework, a plurality of kerf cutters each comprising a cutter frame with an 115 endless chain cutter thereon, a plurality of fluid pressure devices, one connected to each of said cutter frames for giving the chain cutters feeding movements relatively to said supporting framework, means for dontrol- 120 ling the operation of said fluid pressure devices independently of each other and a plurality of independent motors one connected to each of said chain cutters for driving the same independently. 125
  53. 53
    In a mining machine, the combination with a supporting frame, of loop-chain core-cutting mechanism comprising a cutter frame having an unobstructed core-opening therethrough and an endless chain 130 1,526,558 mounted thereof!, means for supporting said core-cutting jnechanism for feeding movement on an upright axis, a motor connected to said cutter frame to effect feeding 5 movement of said .core-cutting mechanism relatively to said supporting frame on such upright axis, an additional motor separate from and independent of said feeding motor for driving said endless chain, said addi10-tional motor being connected to said cutter frame to move bodily therewith, and means for controlling said feeding motor independently of'said driving motor.
  54. 54
    In a mining machine, the combination IS with a supporting frame, of core-cutting mechanism comprising a cutter chain and a cutter frame having an unobstructed coreopening therethrough mounted on said supporting frame for swinging movement relatively thereto, a motor for swinging said cutter frame relatively to said supporting frame on an upright axis to effect arcuate feeding movement of said chain cutter in a general horizontal direction, an individual motor for driving said cutter chain, said driving motor being separate from and independent of said feeding motor, and means for controlling said feeding motor independently of the operation of said driving motor.
  55. 55
    In a mining machine, the combination with a supporting frame, of an upright plane kerf-cutter mounted thereon for feeding movement relatively thereto in an upright plane midway between the sides of said frame and in advance thereof, said plane kerf-cutter comprising a plane cutterframe and an endless chain-cutter mounted x thereon to cut such kerf extending in the ' the sections for breaking the section into plane of said cutter-frame, a motor for ef- smaller sections. fecting feeding movement of said plane kerf- C“ * . . cutter relatively to said supporting frame porting frame, a pair of core-cutters mountwhile the latter remains stationary, a separate and independent motor for driving said chain-cutter independent of its feeding movement, and means for controlling said feeding motor independently of the operation of said driving motor.
  56. 56
    In a mining machine, the combination with a supporting frame, of a pair of loop chain core-cutters each having an unobstructed core-opening therethrough and mounted-for swinging movements toward, and from each other on upright axes on said supporting frame, two motors, one on each of said core-cutters for driving the same independently of each other and independent of feeding movements thereof, two feeding motors, one connected to each of 60 said core-cutters for swinging the latter toward each other to effect feeding movement thereof, and means for contfolling said feeding motors independently of each other and independently of the operation of either of 85 said driving motors.
  57. 57
    In a mining machine, the combination with a supporting frame, of a plurality of loop chain core-cutters, each having an unobstructed core-oprining therethrough and mounted on said frame for swinging feed- '° ing movement relatively thereto, a plane kerf-cutter mounted on said frame for feeding movement relatively thereto, a plurality of driving motors, one for each of said core-cutters and one for said plane 75 kerf-cutter, each operable independently of the others to drive said corecutters and said plane kerf-cutter independently of each other and independently of the feed of the respective cutters, a 80 plurality of feeding motors, one connected to each of said cutters, and means for controlling each of said feeding motors inde- . pendehtly of the other feeding motors and also independently of the operation of each of said driving motors.
  58. 58
    In a mining machine, the combination with a pair of loop chain core cutters, of a frame on which said core cutters are mounted for movement toward each other, means for operating said core cutters including the feed of each toward the other for cutting a section from the wall of the mine, and a kerf-cutter for separating the section into smaller sections. 1
  59. 59
    In a mining machine, the combination with a pair of loop chain core cutters, of a frame for carrying said core cutters for movement toward each other, means for operating said core cutters including feeding 10«> movements toward each other to sever a sectiofi of material from a mine wall, and means in position to act on the central portion of 105
  60. 60
    A mining machine comprising a suped thereon, means for operating said corecutters to cut oppositely extending core sections in a mine wall while said frame oc- 110 cupies a predetermined position adjacent the mine wall, and means mounted on said frame in position to act on the core sections at the mine wall to break the same into smaller sections. 115 ·
  61. 61
    In a mining machine,.the combination with a pair of core cutters separately pivoted, of means for operating said core cutters to cut oppositely extending core sections in a mine wall, and means for breaking the core 120 sections into smaller sections and for returning said core cutters.
  62. 62
    In a mining machine, the combination with two independent I loop chain core cutting mechanisms, of independent means for 125 moving said cutting mechanisms toward each other to cut a core section from the wall of a mine, independent belts attached to said cutting mechanisms, and means for operating said belts to break the section into 130 1,526,558 smaller sections and to move the latter away from the mine wall.
  63. 63
    In a mining machine, the combination with cutting mechanism, of a belt connected 5 to said cutting mechanism, means comprising a fluid pressure motor for operating said cutting mechanism and drawing said belt into the mine wall, means for controlling said fluid pressure motor to prevent retrograde 10 movement of said cutting mechanism, means for exerting a pull on said belt to break the cut material from the mine wall while said cutting mechanism is locked against retrograde movement, said pulling means also 15 being capable of restoring said cutting mechanism to initial position when said fluid pressure motor is released, and means for directing the dislodged material toward a predetermined position. 20
  64. 64
    In a mining machine, the combination with a supporting frame, of multiple loop core-cutting mechanism mounted thereon, means for operating said multiple loop corecutting mechanism to sever material en bloc 25 from a mine wall adjacent said supporting frame, means for adjusting the height of said - multiple loop core-cutting mechanism, and mechanism mounted on said supporting frame adjacent said core-cutting mechanism ' 30 in position to act on the core in its native position in the. mine vein to effect division thereof to facilitate handling.
  65. 65
    In a mining machine, the combination with a supporting frame, of a pair of core 35 cutters mounted on said frame in position for entirely severing from a mine wall a crescent-shaped block of material adjacent said frame, means,for operating said corecutters tq sever such crescent-shaped block 40 of, material, mechanism mounted on said frame adjacent said core-cutters in position to act on the crescent-shaped mass in its native position to divide the same, and power-operated mechanism niounted on said ’ frame in position for engaging the divided sections in cut positions and move the same back from the mine wall toward loading position. _
  66. 66
    In a mining machine, the combination with a supporting frame, of a plurality of loop chain core-qutters mounted on said frame each in a position to , cut a section of an entire core in a mine wall adjacent . said frame, means'for operating said core’ cutters to dislodge such an entire core in a mine wall adjacent said frame, an additional plane kerf-cutter mounted on said frame .adjacent said core-cutters, means for operating said plane kerf-cutter to cut a kerf transversely'of the core during tbe operation of the core-cutters and retract such plane kerf-cutter before the completion of the feeding movements of the first-named core-cutters, and means for engaging the severed material in the position assumed thereby after being dislodged and moving such severed material back from the mine - wall.
  67. 67
    In a mining machine, the combination with a supporting ftome, of a pair of cut- 7o ting devices mounted thereon, bn spaced pivots, means for operating said cutting devices including the feed thereof toward each other, and means separate from said cutting devices in position on said supporting 75 frame for receiving the cuttings from said cutting devices and transferring such cuttings back from the mine wall.
  68. 68
    In a mining machine, the combination with a supporting frame, of a pair of 80 cutting devices mounted thereon for feeding movement relatively thereto on spaced apart axes, means for operating said cutting devices, including feeding nfovement thereof toward each other, means for re- 85 versing the movements of said cutting devices to engage_the cut material and move the same away from its cut position, and mechanism connected to said cutting devices and coacting with portions of said support- 90 ing frame to constitute spaced-apart chutes on opposite sides of said frame to direct the dislodged material from the mine wall toward loading position.
  69. 69
    In a mining machine, the combination 95 with a supporting frame, of a pair of loop chain core cutters movable on said frame toward each other on separate pivots, means for operating said core cutters including feed toward each other to cause each to pro- 10(1 duce a U-shaped kerf in a mine wall, and means mounted on said frame in position for moving back from the mine wall the material severed by Said cutters.
  70. 70
    A mining machine comprising a sup- 105 porting frame, a plurality of separate corecutting mechanisms mounted on said frame in position to operate on a mine wall adjacent said frame in spaced-apart positions but cooperatively related by acting on adja- 110 cent bodies of material toward each other to sever a single continuous core-section of material from the mine wall, independent means for operating and controlling said cutting mechanisms, and means mounted on 113 said frame in position for moving the dislodged material from the mine wall toward loading position.
  71. 71
    In a mining machine, the combination with a supporting frame comprising a plat- 120 form, of a conveyor operable approximately in the plane of said platform, kerf-cutting mechanism having upper and lower portions and mounted on said supporting frame in a position entirely separated from said con- 125 veyor, means for operating said kerf-cutting mechanism including driving thereof by causing the lower portion thereof to, emerge from the mine wall above the forward portion of said platform onto said conveyer, 1:!i * 1,536,668 13 and independent means for driving said conveyor to remove the cuttings received thereby from said separate kerf-cutting mechanism.
  72. 72
    In a mining machine, the combination with a supporting frame, of loop chain corecutting mechanism having an unobstructed core-opening therethrough mounted on said frame for swinging movement relatively thereto, hydraulic mechanism for swinging said core-cutting mechanism in feeding direction, a motor for driving said core-cutting mechanism independently of said hydraulic feeding mechanism, a flexible member connected to said core-cutting mechanism, and means for exerting a pull on said flexible member to retract said cutting mechanism.
  73. 73
    A mining machine comprising two pivotal cutter-frames each having an unobstructed core-opening therethrough, cutting mechanism mounted on each of said frames, means for swinging said frames contemporaneously in opposite directions respectively and simultaneously operating said cutting mechanism to cut oppositely extending cores in a mine wall, additional cutting mechanism for cutting an upright kerf in a mine wall to effect the division of the core mass, and means for effecting retraction of said cutterframes and moving the dislodged material towards loading position.
  74. 74
    A mining and loading machine comprising a supporting frame, a pair of swinging kerf-cutters mounted on said supporting frame for arcuate swinging feeding movement, means for operating said kerf-cutters to swing the same from a diverging relation to a forwardly extending relation in close proximity to each other, mechanism mounted on said frame in position to act on the mine wall to cut a kerf transversely of the planes of the kerfs cut by said first-named kerfcutters, and mechanism mounted on said supporting frames in position for removing severed material from the face of coal where cut and transferring such severed material towards loading position.
  75. 75
    A mining and loading machine comprising a supporting frame, two cutter frames mounted on said supporting frame for swinging movement relatively thereto on separate upright axes, cutter chains one mounted on each of said cutter frames, means for swinging said cutter frames contemporaneously in opposite directions respectively, means for controlling said swinging means to stop the swinging of one of said cutter frames, and apparatus mounted on said supporting frame in position for taking the severed material directly from the position assumed thereby after being severed and moving such material toward loading position.
  76. 76
    In a mining machine, the combination with a supporting frame, of a plane kerf cutter comprising a cutter frame and a cutter chain thereon, a loop chain core cutter comprising a cutter frame having an unobstructed core-opening therethrough and a 70 chain cutter on said cutter frame, means for supporting said plane kerf cutter for rectilinear feeding movement relatively to said supporting frame, means for pivotally supporting said core cutter on a fixed axis for 75 swinging feeding movement relatively to said supporting frame, and means for controlling the starting, feeding, stopping, and reverse movements of said cutters independently of each other. 80
  77. 77
    In a mining machine, the combination with a supporting frame comprising a platform, of dislodging mechanism mounted on said frame for operation at a mine wall above said platform, an adjustable extension 85 on said platform and movable relatively thereto to abut against the mine wall to close the gap between the forward end of said platform and said mine wall, a pair of fluid .pressure motors connected to said extension to move the latter against the mine wall, and a pair of springs for moving said extension to initial position on said platform away from the mine wall when the pressure in said motors is relieved. 95
  78. 78
    A mining machine comprising a supporting frame, a cutter bar pivotally mounted on said supporting frame at the front end thereof, cutting devices carried by said cutter bar, means for actuating said devices, 199 a second cutter bar pivotally mounted on said supporting frame adjacent the firstnamed bar on a separate axis, cutting devices carried by said second cutter bar, means for actuating the last-named cutting io‘> devices, means for swinging said bars whereby they may be swung in opposite directions to feed the cutting devices into the coal while tending to neutralize feeding strains, and means mounted on said supporting no frame in position for removing the severed material from the position assumed thereby after being severed and while said supporting frame remains in the position which it occupied during the operation of said cut- l'-5 ting devices.
  79. 79
    A mining and loading machine comprising a supporting frame, two chain cutters each comprising a cutter bar, and a cutter, chain, and each being pivotally ]-’o mounted on said supporting frame, means for advancing said cutter bars bodily into the work while said cutter bars are held in fixed relation to said supporting frame and in substantial balanced relation to the axis <- 5 of advancing movement, swinging means for subsequently swinging said chain cutters in opposite directions to cut an arcuate kerf in advance of said supporting frame, and loading apparatus mounted on said support- 130 2,83®,δδ8 ing frame in position for removing the severed material from the position assumed thereby after being severed and while said supporting frame remains in the position it δ occupied during the swinging of said chain cutters.
  80. 80
    A mining and loading machine comprising supporting framework, two chain cutters mounted thereon for swinging move10 ment relatively thereto, means for swinging said chain cutters contemporaneously in opposite directions respectively, means for driving said chain cutters, means for advancing the chain cutters bodily toward the 15 work, and loading apparatus mounted on said supporting framework in position for taking the dislodged material from the position assumed thereby after being severed and effecting the transfer of such dislodged 20 material toward loading position.
  81. 81
    A mining and loading machine comprising a supporting frame, a pair of cutter frames pivotally, mounted on said supporting frame for swinging movement relatively 25 thereto on spaced-apart axes, endless chains' for said cutter frames provided with cutting devices for making a cut in the face of the coal, means for driving' said chains, means for swinging said cutter frames from 30 a diverging position to a substantially parallel position, and loading apparatus mounted on said supporting frame in position for effecting the transfer of dislodged material along said supporting frame toward loading 35 position from the position assumed by said material immediately after being dislodged.
  82. 82
    A mining and loading machine comprising a supporting frame, a pair Glutting devices mounted thereon, a pair of sup40 ports, one for each of said cutting devices, means for driving said cutting devices, means for initially advancing said cutting devices into the work while driving said cutting devices, means for subsequently im45 parting f eeding movement ta each of said supports in opposite directions respectively and in a direction transverse to the direction of their initial advance while continuing to drive said cutting devices, and loading ap50 paratus in position on said supporting frame for effecting transfer toward loading position of the severed material from the position where left after being dislodged by the operation of said cutting devices. 55
  83. 83
    A mining and loading machine comprising a supporting frame, two chain-cutters each comprising a cutter-frame and a cutter-chain, swinging means for swinging said chain-cutters contemporaneously in op 60 posite directions respectively, disconnecting means for disconnecting one of said chaincutters from said swinging means, additional cutting mechanism mounted on said frame, means for operating said additional cutting mechanism including rectilinear feed there of transversely of the mine vein near the range of operation of said chain-cutters, and loading apparatus mounted on said supporting frame in position for removing severed material toward loading position' directly 70 from the position assumed thereby after being severed and while said supporting frame remains adjacent the coal face operated on.
  84. 84
    In a mining machine, the combination with a supporting frame, of a pair of core 75 cutters mounted for pivotal movement on said frame, means for swinging said cutters toward one another to cause each of said cutters to disconnect a portion of a crescentshaped core. section from a mine vein, an 80 upright cutter between said core cutters, and means for operating said upright cutter to separate the portions of said core section.
  85. 85
    In a mining machine, the combination with a supporting frame, of a pair of core 85 cutters pivotally mounted on said frame, means for swinging said cutters toward and away from each other, and motors carried by said cutters for operating the same, said motors being bodily movably with the bodily 90 movement of said cutters.
  86. 86
    In a mining machine, the combination with a supporting· frame, of a plane kerfcutter mounted near one end of said supporting frame in position to cut an upright 85 xerf in a mine wall, a pair of additional terf-cutters mounted on said supporting frame for feeding movement relatively thereto toward and from said upright kerfcutter, means for operating said kerf-cutters 100 including the feed thereof, and a conveyor on said supporting frame in position to receive cuttings from all of said kerf-cutters during the operation thereof at the mine wall. . 105
  87. 87
    A mining and loading machine comprising a supporting frame, dislodging mechanism mounted thereon, conveyor mechanism extending rearwardly from said mining machine, a hopper comprising a movable 110 extension for connecting the mining machine with said conveyor mechanism and means for adjusting the position of said mining machine while said frame remains operatively connected by means of said hopper 115 to said conveyor mechanism.
  88. 88
    A mining and loading machine comprising a mining machine having a supporting frame with dislodging apparatus thereon in position to operate on an upright mine 120 wall between the floor and roof of the mine chamber, a hopper in position to receive dislodged material from said mining machine, an extension member between said mining . machine and said hopper, means for adjust- 125 ing the elevation of said mining machine to various positions including a position adjacent the floor of the mine chamber;and means for supporting said extension member to prevent the latter from, interfering 130 1,626,668 with the adjustments in elevation of said mining machine, said extension being automatically restored to delivery communication between said mining machine and said 5 hopper when the rear end of said mining machine is elevated to a predetermined position.
  89. 89
    A mining and loading machine comprising a supporting frame with cutting 10 mechanism mounted thereon in position to cut the material in an upright mine wall between the floor and roof of the mine chamber, means mounted on said frame to receive the dislodged material, means for ad 15 justing the elevation and inclination of said frame together with said cutting mechanism and said receiving means, conveyer mechanism, a base frame for supporting said conveyer mechanism with its receiving end ad 20 jacent the roof of the mine chamber, a hopper for the receiving end of said conveyer, means for connecting said receiving means with said hopper, .and means for supporting said connecting means on the rear end of 25 the first-named frame for movement relative thereto to permit the mining machine to occupy a position extending horizontally along the floor of the mine chamber and adjacent said floor. 30
  90. 90
    A mining and loading machine com- prising a base frame, a conveyer pivotally connected to said base frame, a hopper at the receiving end of said conveyer, a mining machine comprising dislodging mechanism and 33 a supporting frame therefor,, means for varying the elevation of said mining machine, means mounted on said supporting frame for directing dislodged material into said hopper, and mechanism for supporting said 10 directing means for movement relatively to said supporting frame to permit the latter , to occupy an approximately horizontal position extending along the floor of the mine chamber. 45
  91. 91
    A mining and loading machine com- prising a main frame, a supplemental frame, cutting mechanism mounted on said supplemental frame in position to cut material in an upright mine wall between the floor 50 and roof of a mine chamber, means for adjusting the elevation of said supplemental frame, conveyer mechanism mounted on said main frame, means comprising a connecting device extending downwardly from an 55 opening in said supplemental frame to direct dislodged material from said supplement frame to said conveyer, and a pin and slot connection between said connecting device and said supplemental frame to prevent 60 said connecting device from interfering with the lowering of said supplemental frame, to a position adjacent the floor of the mine chamber.
  92. 92
    In a mining machine, the combination fi5 with a main frame, of a hopper iiiVotally connected to the rear end of said main frame, an endless belt conveyer connected to said hopper and swingable therewith on said main frame, a supplemental frame having a semicircular opening at its rear end, an arcuate 70 connector fitting on the rear portion of said hopper and fitting into the semi-circular opening of said supplemental frame for directing material from the latter into said hopper, spaced apart arms extending from 75 said connector and connected to vertical spaced apart slots at the rear end of said supplemental frame, means for adjusting the elevation of the rear end of said supplemental frame and carrying said arms with 80 said supplemental frame above a predetermined position, said slots permitting said connectoi· to rest on said hopper when said supplemental frame is below a certain predetermined position, means for adjusting 85 the elevation of the forward portion of said supplemental frame, and dislodging apparatus mounted on said supplemental frame to dislodge material from a mine wall and transfer the same along said supplemental 00 frame over said connector to said hopper and said conveyer.
  93. 93
    In a mining machine, the combination with a pair of loop chain core cutters each having an unobstructed core opening there- 05 through and mounted for pivotal movement about spaced upright axes, and a third cutter movable in a vertical plane between said axes.
  94. 94
    In a mining machine, the combination I 00 with a pair of kerf-cutters each comprising an endless chain cutter and each mounted for bodily arcuate feeding movements, and a third kerf-cutter comprising an endless chain cutter mounted for feeding movement I 03 in a plane extending transversely of the planes of the kerfs cut by said pair of kerfcutters.
  95. 95
    In a mining machine, the combination with a supporting frame, of a pair of loop 110 chain core cutters mounted on said frame for swinging feeding movement relatively thereto, and a plane kerf cutter mounted on said frame in position to cut a plane kerf between the feeding paths of travel of said 115 core cutters. ·
  96. 96
    In a mining machine, the combination with a supporting frame, of a pair of loop chain core cutters each having an unobstructed core opening therethrough and 120 mounted on said frame for pivotal movement relatively thereto, means for swinging said core cutters toward each other to cause each of said cutters to cut a portion of a crescent shaped core from a mine vein, 123 a plane kerf cutter mounted on said frame in position to separate the portions of the core, and means for moving the separated portions of the core from their severed positions toward loading position. 130 1® 1329,668
  97. 97
    In a mining machine, the combination , with a supporting frame, of a pair of kerf cutters pivotally mounted thereon for movement relatively to said supporting frame, 5 means for swinging said kerf cutters toward and away from each other, and motors one carried by each of said cutters and bodily movable therewith during their swinging movements relatively to said supporting 10 frame, said motors swingable with said kerf cutters being connected thereto to drive the same. .-- ‘
  98. 98
    In. a mining machine, the combination with a supporting frame, of a pair of 15 loop chain core cutters mounted on said frame for pivotal movement toward and away from one another relatively to said frame, each of said cutters having an unobstructed core opening therethrough, 20 means for operating said core cutters including feeding movement thereof by swinging said cutters toward one another to cause the same to cooperate to separate a core section from a mine vein, means 25 for severing from one another the portions of said core section severed by said cutters, and means for moving each of said cutters together with the portion of material severed thereby rearwardly along said 30 frajne to move said material away from the severed positions toward loading position.
  99. 99
    In a mining machine, the combination with a supporting frame, of a pair of kerf cutters pivotally mounted on said 35 frame, means lor swinging said cutters toward one another to sever a section of material from a mine vein, a third cutter for subdividing said severed section, and means for removing the subdivided sections, from 40 their severed positions toward loading position.
  100. 100
    In a mining machine, the combination with a supporting frame, of a pair of loop chain core cutters pivotally mounted 45 on said frame for swinging movement relatively thereto, each of said cutters having an unobstructed core opening therethrough, means for swinging said cutters toward one another to sever a complete core of ma50 terial from a mine vein, a plane kerf cutter mounted on said frame in position for dividing said complete core into two sections, aprons one secured to each of said core cutters to move therewith back of the sec55 tion of core cut thereby^ and means for exerting tension on said aprons to draw said core cutters backward together with the material severed thereby to move the disconnected portions of said core along sepa60 rate paths relative to:said frame from the . native positions of said core sections toward loading positions.
  101. 101
    In a mining machine, the combina' tion with a supporting frame, of a loop 65 chain core cutter having an unobstructed core opening therethrough and pivotally mounted on said frame for swinging movement relatively thereto on an upright axis, means for operating said core cutter including swinging movement thereof on such 70 upright axis and the driving of the cutter chain with its lower run emerging from the mine wall adjacent said frame, a base plate on said frame with a forward contour conforming to the path of travel of the emerg- 75 ing run of said cutter chain, and a conveyor mounted on said base plate along a path of travel conforming to the forward portion of said base plate and the path of the emerging run of said cutter chain §0 in position to receive the cuttings from said cutter chain and convey such cuttings continuously away from the mine wall during the swinging feeding movement of said cutter. . 85
  102. 102
    In a mining machine, the combination with a supporting frame, of a plurality of kerf cutters mounted thereon each to have a swinging feeding movement relatively thereto on a separate axis, means for operat- 90 ing said kerf cutters including swinging feeding movement thereof relatively to said frame while the latter remains stationary, the cuttings from said kerf cutters being ejected from the mine wall onto said frame, .95 and a conveyor mounted on said frame and extending across the front portion thereof in position to receive the cuttings from said kerf cutters throughout the ranges of movement of the latter and convey such cuttings 100 toward loading position during the operation of said cutters and while said frame remains stationary.
  103. 103
    In a mining machine, the combination with a supporting frame, of core cut- 105 ting mechanism mounted thereon and having an unobstructed core opening therethrough, and a plane kerf cutter mounted on said frame and confined to a feeding movement along a path parallel to the no longitudinal length of the machine to act on the core transversely to sever the core from the unmined mass.
  104. 104
    In a mining machine, the combination with a supporting frame, of .core cutting 115 mechanism mounted thereon and having an unobstructed core opening therethrough, and a plane kerf cutter mounted on said frame and confined in its feeding movement to a position to extend longitudinally 120 of the machine and across the path of feeding travel of said core cutting meqhanism to completely sever from the mine Wall, the core cut by said core cutting mechanism.
  105. 105
    In a mining machine, the combina- 125 tion with a supporting frame, of core cutting mechanism having an unobstructed core opening therethrough and pivotally mounted on said frame on a pivot shaft for swinging movement relatively thereto. 130 1,536,558 means for operating said core cutting mechanism to cut an arcuate core, and a plane kerf cutter mounted on said frame and movable relatively thereto adjacent said core 5 cutting mechanism to cut the core transversely and sever the same completely from the unmined mass.
  106. 106
    In a mining machine, the combination with a supporting frame, of a pair of 10 chain cutters each comprising an upright frame mounted on said supporting frame for arcuate feeding movements on spacedapart axes, means for driving said chain cutters with their lower runs traveling to 15 ward said supporting frame after emerging from the mine wall adjacent said supporting frame, and a conveyor mounted on said supporting frame adjacent the lower runs of said chain cutters in condition for re 20 moving the cuttings delivered to it by said lower runs.
  107. 107
    In a mining machine, the combination with a supporting frame, of a pair of chain cutters on separate pivots on said 25 frame and each comprising a frame and a chain traveling about the periphery thereof in an upright plane, means for driving said chain cutters in upright planes with the lower runs emerging from the mine 30 wall to deliver cuttings to said supporting frame adjacent said lower runs, and a conveyor on said supporting frame with its path of travel adjacent the positions of the lower runs of said chain cutters where they 35 emerge from the mine wall.
  108. 108
    In a mining machine, the combination with a supporting frame, of loop chain core-cutters each having an unobstructed opening extending laterally therethrough, 40 means for driving said chain cutters, means -for swinging said cutters about spaced-apart upright axes to feed said cutters relatively to said supporting frame, and a flight conveyor mounted on said support 45 ing frame in position to travel along an arcuate path.to receive the cuttings from said cutters as the latter are swung.in their feeding movement about said upright axis.
  109. 109
    In a mining machine, the combina 50 tion with a supporting frame comprising a platform, a dislodging mechanism mounted on said frame for operation on a mine wall above said platform, an adjustable extension on said platform adapted to be 55 moved relatively to said platform to abut against the mine wall to close the gap between the forward end of said platform and said mine wall, a pair of loop chain core-cutters mounted'on spaced pivots on 60 said frame each having an unobstructed opening therethrough and each with its lower runs adjacent said platform and said extension, and means for operating said core-cutters including feeding move* ment thereof relatively to said platform. I 1 ?
  110. 110
    In a mining machine, the combination with a pair of swinging frames on spaced pivots and each having an unobstructed opening therethrough, of separate cutting mechanisms mounted on said swing- 70 ing frames, means for operating said cutting mechanism including the swinging of said frames in an arcuate path in a mine wall, and flexible draft devices acting, on the outer ends of said frames to swing the 75 same back toward initial position.
  111. 111
    In a mining machine., the combination with a pair of loop chain core-cutters, of means for swinging said core-cutters about spaced-apart upright axes, a base 80 plate over which said cutters move, a conveyor arranged to travel oyer said base plate and having horizontally extending flights secured thereto, the path of said conveyor being arranged adjacent the path 86 of the ends of the return runs of said cutters as the latter move about their axes, and a ridge formed on said base plate extending around the periphery of the path of said conveyor to prevent the escape ,of 00 material from said conveyor. . 112. In a mining machine, the combination with a supporting frame, of a pair of kerf cutters pivotally mounted on said frame, means for swinging said cutters toward one 05 another to sever a section of material from the mine vein, a third cutter for subdividing said severed section, and means for removing the subdivided sections from their severed positions toward loading position. 100 113. In. a mining and loading machine, the. combination with a supporting frame, of a pair of core-cutters each/having an unobstructed core-opening therethrough and mounted on spaced pivots oh said support- 105 ing frame in. position for entirely severing from a mine wall a crescent-shaped block of material, means for operating said cutters including feed thereof, and means mounted on said supporting frame in position for 110 moving the dislodged material from the mine wall along said frame toward loading position.
  112. 112
    114. In a mining and . loading machine, the combination with a plurality of loop 115 chain cutters., of a frame for supporting said loop chain cutters on spaced-apart pivots in position for operating on an upright mine wall in advance of said frame, means for operating said chain cutters including 120 the feed thereof to effect the dislodgment of material from such upright mine wall, and power operated mechanism mounted on said supporting frame in position to act on the material where dislodged and move such dis- 125 lodged material along said frame toward loading position while said frame remains stationary.
  113. 113
    115. A mining and loading machine comprising a supporting frame, a pair of cut- 130 1,526,668 ting devices mounted on said frame for movement to and from each other on spacedapart upright axes, means for operating such cutting devices including feed thereof 5 toward each other to effect the dislodgment of a section of material from an upright mine wall, and means on said supporting frame in position to act on the material to move the same from its native position along 19 said frame toward loading position.
  114. 114
    116. A mining and loading machine comprising a Supporting frame, a pair of loop chain cutters mounted on spaced-apart pivots on said frame in position to operate on 15 an upright mine wall, means for operating said chain cutters including feed thereof relatively to said supporting frame to effect the dislodgment of a section of material from such upright mine wall, and means in 20 position on said frame for acting on the dislodged material at the mine wall and moving such material from the mine wall along said frame toward loading position.
  115. 115
    117. A mining and loading machine com 25 prising a supporting frame, a pair of loop chain core-cutters each having an unobstructed core opening therethrough and mounted on said frame for feeding movement toward each other on spaced-apart up 30 right axes, independent means for operating said chain cutters each to produce a Ilshaped kerf in a mine wall, and means mounted on said supporting frame to act on the material in the position assumed thereby 35 after being dislodged and move such material from the mine wall along said frame toward loading position.
  116. 116
    118. In a mining machine, the combination with a supporting frame, of a pair of 40 loop chain core-cutters mounted on said frame to swing toward and from each other on spaced-apart upright axes, means mounted on said frame and connected to said pair of loop chain core-cutters to. move the same 45 in feeding direction toward each other, said means being incapable of moving said corecutters away from each other, and separate means mounted on said frame and connected to said core cutters and capable of moving ° the latter only in retracting direction.
  117. 117
    119. In a mining machine, the combination with a supporting frame, of a pair of swinging cutter frames each having an un 55 obstructed core-opening therethrough and ° each separately pivotally mounted on said supporting frame, endless chains for said cutter frames provided with cutting devices for making cuts in the face of the coal, 60 means for driving said chains around the υ unobstructed core-openings of said cutterframes, and means for swinging said cutter frames from a diverging position to a substantially parallel position while said chains eg are being driven.
  118. 118
    120. In a mining machine, the combina- tion with a supporting frame, of a pair of core-cutting devices each comprising a cutter frame having an unobstructed core opening therethrough and each mounted on said supporting frame to swing on its own sepa- 70 rate axis, means for initially advancing said core-cutting devices into the work while driving said core-cutting devices, and means for subsequently imparting movement to each of said cutter-frames in opposite di- 75 rections respectively and in directions transverse to the direction of their initial advance while continuing to drive said cutting devices, to effect the cutting of cores extending in opposite directions. 80
  119. 119
    121. In a mining machine, the combination with a supporting frame, of a pair 'of core-cutters each comprising a cutter frame and a cutter chain, means for swinging said cutter frames on spaced-apart axes con- 85 temporaneously in opposite directions respectively and relatively to said supporting frame, and disconnecting means for. operatively disconnecting one of said cutter frames from said swinging means to enable 90 the cutting of a single core with one of said core-cutters.
  120. 120
    122. In a mining machine, the combination with a supporting frame, of a pair of swinging cutter-frames separately pivotally 95 mounted on said supporting frame and each having an unobstructed core-opening therethrough, said cutter-frames being movable to positions immediately adjacent one another and into parallel relation with the 100 unobstructed core-openings in said cutterframes registering with each other, cutterchains on said cutter-frames having theii’ cutter bits bridging the gap between said cutter-frames when the latter are in parallel 105 relation, means for swinging said cutterframes from diverging to parallel relation and means for driving said cutter chains during such swinging movement to effect the cutting of a crescent-shaped core of material 110 from a mine wall.
  121. 121
    123. In mining apparatus, the combination with a supporting frame, of spacedapart fluid pressure motors adapted to engage anchored abutments in a mine, a pair 115 of cutting devices mounted on said frame, means for controlling said fluid pressure motors to move said frame to initially advance said cutting devices into the work and means for subsequently moving said cutting 120 /devices in opposite directions respectively and in a direction transverse to the direction of their initial advance;
  122. 122
    124. A mining machine comprising supporting framework, a loop chain core cutter 1 having an unobstructed core opening therethrough and mounted on said framework in position for feeding movement relatively thereto, means for operating said core cutter including such feeding movement, and 1,626,568 ie additional cutting means mounted on said framework confined in position to cut a kerf parallel to the longitudinal length of the machine to sever the core from the unmined 5 mass.
  123. 123
    125. In a mining machine, the combination with a supporting frame, of means mounted thereon in position for cutting a core section in a mine vein, a plane kerf 1° cutter for cutting a kerf to separate the core section from the unmined mass, and means independent of said plane kerf-cutter mounted on said frame for moving the separated core section toward loading position. 15
  124. 124
    126. In a mining machine, the combina- tion with a supporting frame, of means mounted thereon in position to cut a core section in a mine vein adjacent said frame with one end of said core section integral 20 with the unmined mass, means mounted on said frame in position to act transversely of said core section adjacent such integral end thereof, and flexible means mounted, on said frame in position to coact with said core 25 cutting means to take the severed core section from the position assumed thereby after being completely cut out from the mine vein and moving such severed section toward •loading position. 30
  125. 125
    127. In a mining machine, the combina- tion with a supporting frame, of an upright plane kerf-cutter mounted thereon and comprising a vertical flat cutter-frame and a cutter-chain mounted thereon, a motor for 36 driving said cutter-chain, means for supporting said kerf-cutter for feeding guiding movement midway between the sides of the frame and in advance thereof, a separate motor for giving said vertical plane kerf 40 cutter rectuinear feeding movement rela, tively to said supporting frame and midway between the sides thereof and in advance thereof independently of the driving of said cutter-chain, and means for controlling said 46 feeding motor independently of the operation of said driving motor.
  126. 126
    128. In a mining machine, the combination with a supporting frame, of core-cutting mechanism comprising an endless cut 50 ter chain and a cutter frame having an unobstructed core-opening therethrough, means for mounting said core-cutting mechanism for arcuate feeding movement relatively to said supporting frame on an upright axis, 55 a motor for effecting feeding movement of said core-cutting mechanism arcuately on such upright axis relatively to said supporting frame, a separate motor for driving said cutter chain, and means for controlling said feeding motor independently 60 of the operation of said driving motor.
  127. 127
    129. A mining machine comprising supporting framework, of a loop core-cutter having an unobstructed core-opening therethrough and mounted on said frame- 05 work in a position to cut a horizontal core of material in a mine vein, and additional cutting means mounted on said framework on approximately the longitudinal center line of the length of the machine in posi- 70 tion to cut an upright kerf to transversely sever the cut core.
  128. 128
    130. The combination with two loop chain cutters each having an unobstructed coreopening therethrough, of mechanism for 76 supporting said chain cutters with predetermined lengths thereof in the same plane, means for operating said chain cutters to produce, a plurality of kerfs in a mine wall around cores respectively pro jecting through 80 said cutters, and means acting between said cutters to divide the core.
  129. 129
    131. In a mining machine, the combination with a main frame, of a supplemental frame movably mounted thereon, multiple 86 core-cutting mechanism mounted on said supplemental frame, means for operating said core-cutting mechanism to cut at the' back and sides of a body of material at an upright mine wall to form a plurality of bo cores of material extending transversely of the mine heading,, and means in position to act on the middle portion of the core to divide the same into smaller sections.
  130. 130
    132. A mining machine comprising sup- 95 porting framework, core-cutting mechanism mounted thereon for arcuate feeding movement relatively thereto in position to cut a core from one side of the machine toward the front center thereof, said core-cutting 100 mechanism having an unobstructed coreopening therethrough, means for operating said core-cutting mechanism including arcuate feeding movement thereof relatively to said supporting framework, and additional cutting mechanism for cutting a kerf to sever the cut core from the unmined mass. In testimony whereof I have signed my name to this specification, on this 19th day of September A. D. 1916. EDMUND O.MORGAN.
Independent claims130