US1522693A

US1522693A - Mining and loading machine

Info

Publication number: US1522693A
Application number: US95590A
Authority: US
Inventors: Morgan Olive Eugenie
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-05-05
Filing date: 1918-05-05
Publication date: 1925-01-13
Anticipated expiration: 1942-01-13

Description

Jan. 9

E. C. MORGAN MINING AND LOADING MACHINE Original Filed Kay 5, 1916 6 Sheets-Sheet 1 W i614 ass? w zw Jan. 13,1925. 1,522,693

E. C. MORGAN MINING AND LOADING MACHINE Original Filed May 5, 1916 6 Sheets-Sheet 2 %?dzw f varym fl JQQ/W MVWM'M E. C. MORGAN MINING AND LOADING MACHINE I E. C. MORGAN MINING AND LOADING MACHINE Original Filed May 5, 1916 6 Sheets-Sheet. 4

2 a M i s a M 1 w 1 m fink/Amara? we I 3' l, 7 1 E== ==W m w w J 1/ 0 E .5 3 5 o 6 4 N W 7 .1 .7 a I i h I e -Lwmil 6 witness.

. E. c. MORGAN MINING AND LOADING MACHIFE Original Filed llay 5, 1916 6 SheetsP-Sho'et 5 IDIIDIIIIIII 1714mm? M0 777 Wi Z74 5x57 wzw 1,522,693 E. C. MORGAN MINING AND LOADING MACHINE Original Filed llay 5, 1916 6 Sheets-Shut 6 Patented J 13, ms.

umi'aos'raras 1,522,693 m-omen i mm c. iroiuinr, or m roan, II. in; can iioonn iroiiont mm a a a a or o. iroiionr, nncnam.

immro aimnoaiinia mm Application ma x a, ma, semi Io. cuss.

To fall whom it concern:

1 Be it known that I, Eomi 0. Montana,

a citizen of the United States, residing m.

New York, in the county of New .York and a State of New York, have invented certain new and u'sefulImprovements in and Loading Machines, of which therfollowing is a s ification. t

invention relates to for 10 mining and loadingcoal and material, and haslfor its object the provision in of a machineof the character named which shall be of improved construction and which shall be more eflipientin operation than simi- 5 hr machines previously. known. .Thexmvention consists in the. combination, and arrangement of parts shown in the accompanying drawings and described in the following specification, and fit is .more particularly 20 pointed out mthe appended claims- In thedra Fig. 1 is a horizontal sectional .view through a portion of a coal mine showing as Fig. 5 is a 'viewsimilar to showing the severing mechanism in its lowerfposition;

Fi 6 isa vertical sectionalview of the machine show in the front rtion. off the r severing and dis odging mec anism in ele- 40 vation; Fi 7 -is a fragmentary horizontal sectiona view of a. portion of the machine showing part of the operating mechanism;

8 is a sectionalview on line s-eoi 3 4s Fi A p Fig. 9 is a vertical sectional view on line 9 9 ofFig.3; t

Figs. 10 and 119 are details showing gear arrangement; y t Fig". 12 is a side. elevation of one. end of the main frame of the'machine';

Fig. 13 is a fragmenta of a portion of the main method of assembling;

from the mine shaft,-*leavi-ng section 24 bei mainframe elevational .viewf tame showing the v a closed inthe gear casing 34.

leaned new, is, iaao. mm m. slam.

F' 14 is a top plan view of a portion of the 0 shown in 18; and

Fig. '15 :is a detail arrangement. M

The machine shown in. the drawings, which. embodies one form of'the invention, is especially designed for use in connection with that system of mining in which a series of parallel entries are driven leading away ne showing s g pillars between the entries, such entries being shown at 21 and 22in 1 and 2 of the drawing. The pillar 20 intermediate the entries, is removed by making a series intermediate 1 of cuts lengthwise of the material of across the face of the mine vein, which constitutes the pillar between the entries. As shownin these views, of the drawings, the main frame of the machineconsists of two sections 23 and 24, the section 23 being arran ed along the face of the pillar being worke and the positioned in the entry' 22 at one side of t is pillar 20. In order to position the section 230i the main frame it is necessary first to drive an ent at right angles to the entries 21 and 22 an the frame is made in sections, as shown in Figs. 13

r and 14, in order that it may be placed in The section 23 is made up of a series 0 base plate sections 25 position, in this ent which carry at the edges of their upper surfaces a plurality of rails or beams 26 and '27. The plates 25 and the

beams

26 and 27 arearranged to lap joints, as shown in Figs.

13 and 14, in order that a continuous rigid structure. maybe formed when the parts of the frame are all assembled. The parts of the frame are heldftogether by a series of ca screws 28. A second plate 29 is carried y the

beams

26 and 27 andjs spaced a *short distance abovethe base-plate25 (Figs. 4 and 5). The plate 29 forms a bed plate for an endless conveyer 30 (Fig. 6) p which extends lon itudinally approximately the full Ian 0 the main ame of the ine.' At'the end of theframe shown in Fig. 12, the

beams

26 and 27 are inclined upwardly, as show r'at 31, andthis section is supported in itsinclined position by. the bracket member 32. The conveyor 30 follows this inclined" section of the frame. A motor 33 is carried on the bracket 32and drivestlieconveyer 30 througii gearingenw.

he base plate the perlphery o The section 24 of the 25 is continued on a horizontal plane beneath the inclined section 31 and carries, as shown in Fig. 2, a motor 35 and drums 36 and 37' driven thereby. A cable 38 is wound on the drum 36 and extends over pulleys 39 and 40 to an anchor 41 located in the entry 21. A similar cable 42 is arranged to be wound on the drum 37 and extends over pulleys 43 and 44 to an anchor 45 in the entry 22. By windin the cables 38 and 42 on the drums 36 and 37 the entire frame will be moved, as will be readily understood, toward the face of the pillar 20 to move the machine into a new operating osition after the completion of a cut lengt wise of the material or across the face of a mine vein. frame is supported on the extended portion of the base by means of a securing plate 46 and its construction is similar to the construction of the section 23 and carries a conveyer similar to the conveyer 30. The conveyer is driven by a motor 47 (Fig. 12) secured to the discharge end of the section 24 and discharges into a car which travels in the entry 22.

Mounted on the

longitudinal beams

26 and 27 of the main frame 23, is an upstanding arch-shaped frame work including

upright walls

50 and 51 connected at their upper edges by'a top section 52. At the bottom edge of the wall 51 is a foot or bearing member 53 which is provided with a notch on its inner side arranged to cooperate with a flange or way 54 which extends longitudinally along the outer edge of the beam '26 (Fig. 9).

The wall 51 carries a similar bearing foot 55 (Fig. 9) resting on a shoulder 56 extending longitudinallyalong the beam 27. The foot 55 carries at its lower edge a bracket plate 57 extendingalong the lower edge of the wall 51 and reinforced by an upstandin flange 58 extending around %the racket plate.

Y The bracket plate 57 carries near one end thereof, as shown in Figs. 3 and 9, a screwthreaded standard 60 which is rigidly held in a bearing 61 formed in the bracket plate. Secured to the upper plate 52 of the archshaped supplementary frame, is a second bracket 62 which rigidly holds the upper end of the standard 60. The

brackets

57 and 62 together with the standard 60 constitute asupport for the cutter-head by means of wh'ch the entire operating mechanism is supported from the main frame 23, the weight being carried by the arch-shaped supplementary frame and thus transferred to the main frame.

The cutter-head comprises a horizontal plate 65 provided with a peripheral wall 66 (see Figs..3, 7, and 9). The plate 65 carries an upstanding boss or hearing 67 through which the which fits closely the outer peri hery of the threads formed on the standard. A

plate 25 7 standard 60 passes and bearing bracket 68 is secured to the wall 66 and is provided with an opening alinin with the opening in the boss 67 throu which the standard 60 also passes. T e bracket 68 is made sufliciently strong to support the entire weight of the cutter-head, together with the weight of coal which 1s supported by a receiving plate carried by the head, as will be explained. The bracket 68 rests on an internally threaded worm wheel 69 positioned between the upper surface of the boss 67 andthe lower surface of the bracket. The worm wheel 69 meshes with aworm 7O rotatably mounted on a shaft 71. The. shaft 71 has one end journalled in a bearing 72 carried by the bracket 68 and said shaft 71 carries a gear wheel 3 on the opposite end thereof (Fig. 3). The gear wheel 73 meshes with a pinion 74 secured to the armature shaft 75 of the motor 76. The worm a clutch member 77 arranged to cooperate with one face of the movable clutch 78. The clutch 78 is operated b a clutch lever 79 and an operating hand e 80. By this mechanism the worm wheel 69 may be rotated in either direction to raise or lower the cutter-head on the standard 60, the direction of rotationof the Worm wheel being controlled b reversing the direction of movement 0 the motor 76 by a controller 81 mounted on the front plate 82 of the cutter-head, as shown in Fig. 6. The electric motor used is preferably a two-speed, reversible motor.

As shown in Fig. 11, the end of the shaft is provided with 75 opposite the worm 70, has a sleeve 83 vided with internal gear teeth 87. Secured to the end of the sleeve 83 within the casing 85, is a cross-arm 88 provided with stud shafts 89 on which are mounted a pair of pinions 90 arrangedin position to mesh with the teeth 87 of the flange 86. The shaft 75 carries a pinion 91 in position to mesh with the pinlons 90 andmounted for free rotation on the shaft 75. The may be clutched to the shaft 75 y a slide clutch 93 operated by a handle 94 (Fig. 6) carried on the front plate 82 of the.cutterhead. The outer ,face of the casing 85 is closed by a plate 136 secured to the front plate 82 by cap screws. The end of the sleeve 83 opposlte the casing 85 has keyed thereto a sprocket wheel 95 arranged to drive a cutter-chain 96. The gearing 'described constitutes a well-known system of planetary gearing by which the sprocket 95 may be driven from the shaft 75 at a greatly reduced speed. The cutter-chain 96 is mounted to slide on the'forwar'd edge of a loop-shaped cutter frame 97 havingan uninion 91 I which extends lateralfy head at the side:

therethrough, and

obstructed core ope'nin from the cutterof the machine, an which is carried wall 66 of the core-cutter-head frame.

100 and below the frame-work of the cutterhead, to give ausuflicient' vertical extent to the loop cutter. Thechain is provided with suitable guides to direct it around the loop of the cutter frame and over the driving sprocket Q5.

, Extending rearwardly in alinememt with the rear edge of the lower bar of the cutter frame, is a receiving plate or table 100,

rovided with an u ding wall 101 ocated at. the, edge o the plate opposite the cutter-head .frame, andcurved toward.

the frame at the rear end thereof, as'sliiiwn in Fig. 3.. The receiving table 100 is pro erly strengthened by a series of e braces secured to thebase plate 65 of e cutter-head. Pivotally carried on the ed of the receiving table 100 in the rear of e cutter-head, is a, discharge plate or chute 103 having.

guard walls

104 and 105 at the opposite ends thereof. a The chute 103 bridges the space between the edge of the receiving table and the main frame, so that mate-- rial discharged from the receiving table passes over the chute and is directed onto .103 is inclinedhdownwardly,

the conveyer carried .by the main frame. When the cutter-head is in its upger l plosition, as shown in Figs. 4 and!) t e ute the amount of downward movement being limited by a stop 102. When the cutter-head is in its lower position, the edgezof the chute rests on the beam 27 of the main frame and is inclined slightly upwardly to direct material from the receiving platform over the beam onto the conveyer. To prevent displacement of any of the coal thus discharged onto the conveyer, a ard plate 106- is secured to the rear edge .0 the upright wall of the su Elementary frame and has a transverse y nt ortion 107 arra ed to aline with the guar plate 105 carried y the pivoted chute.

In .order to. move the cutti and dislodging mechanism along the main frame to feed a it into the work, an upri ht shaft 110 is journalled in the bracket p ate 57 (Fig. 6)

. slightly in advance of the standard 60, and

0 posits the main. frame if by the The cutter thus formed is extended above clutch face 115 (Fi 3 a co 0. The clutch 78 ma either the worm or be moved to fasten e worm 114 with the shaft 71, or it may be moved to an intermediate position to permit the shaft to rotate freely without me either worm. The

lower end of the sha '110 has a ar 116 :(Fig. 6) secured thereto which m es with an idler 117 carried by the plate 57 and arranged to mesh withrack teeth 1 18 (Fi 4) carried on-the outer edge of the beam 2 of the main frame. When the shaft 110 is driven by the motor 76 through the mechanism. described, it will be clearthat the suplementary frame carry' the severing and 'ng mechanism wiifi befed along the main to perform the cutting operation lengthwise of the material. When a cut across the face of a mine veinhas been compl the motor is reversed anddriven at its est speed to returnthe cutting mechanism to the end of the frame adjacent the entry 21,10 that it may be moved into the posts that which cooperates with the worm.

entry when the frame is, moved forwardly V to begin a new out. In .order' that the entry 21 may be clear to receive the severing mechanism when the frame moved into itsnew position, it isn ww: that the section 24 of the frame shall located in the entry toward which thesevering mechconveyer carried by themain frame in the same direction in which the machine is moved to feed it into the work. The severed coal is discharged onto theconveyer in the rear of the severin mechanism and is carried forwardly a ong the main frame through the arch-shaped portion of the supplementary frame and discharged into the section 24 toward which the severing mechanism is moved. It will be evident that the arch-shaped section, although shown as made up of solid plates, may be of skeleton formatlon if desired, the only condition bethe 0 rating mechanism and sha 1 be form with an arch through which the coal may be carried ast the operating mechanism of the mac ine.

As the cutter frame and receiving table are moved along the face of the mine vein in the manner described, the material severed from the mine vein passes through the loop of the enclosing cutter frame and is deposited on the receiving table, from which the forward movement of the receiving tan e and the curvature of the upstanding wall .101. When the supplementary frame reachesthe end of the cut, it will be apparent, however, that a certain amount ofcoalwill remain on the receiving table.

For the purpose of removing this coal being that it shall be strong enough to s n port fore the supplementary frame is returned to its starting position, a clearing device for the receiving table is provided, best shown in Figs. 1, 2, 7 and 8. The outer edge of the peri heral wall 66 of the cutter-head 1s provide with a slide or guideway 120 1n which an endless chain 121 is mounted to travel. The chain 121 is driven by a s rocket wheel 122 freely mounted on the shaft 110 between the plate 65 and the bearing 111 (see Fi 15). The sprocket wheel 122 is provide with a worm wheel 123 meshing with a worm 124 mounted for rotation on the shaft 125 but arranged to be clutched thereto b a clutch 126 and an operating handle 12; (see also Fig. 3). The

' shaft 125 is driven by a gear 128 arranged to mesh with the pinion 74 on the motor shaft 75. The chain 121 is provided-with a single flight 130 pivotally mounted on a projection 131 secured to one of the links of the chain. Pivoted to a similar-projection 132 is a brace member 133 arranged to hold the flight 130 in a position normal to the chain when the chain is moving along a straight section of the chain guide. To clear the receiving table of material, at the end of a cut, the worm 124 is clutched to the gear 128 and the motor 76 operated in the direction to move the flight 130 from riilt to left in Figs. 1, 2 and 7. The flight gins its movement from the position shown in Fig. 1 and the movement is ended in the position shown in Fig. 2. By this movement all of the coal on the receiving table is discharged from the table ontothe main frame 23 from whence it is carried to the car and transported from the mine in the same way as other coal discharged from the receiving table. The motor 76 is then reversed and the flight returned to its initial position, where it remains durin the next cut made by the machine. A detachable guide 134 secured in place by cap screws 135 (kFig. 3) is provided at the forward end of t e cutter .iead to guide the chain 120 around this portion of the machine, as shown in Figs. 3 and 7.

During the forward movement of the cutting mechanism, the pressure .of the cutter chain against the material being severed as the chain is being fed into the work, tends to rotate the cutter-head about the supporting standard 60. To overcome this tendency,-the forward end of the cutter-head is provided with a T-shaped vertical bar 140 which cooperates with a guide 141 formed on the forward portion of the upright wall 51 of the arch-shaped supplementary frame. The bar 140 fits loosely in the slot of the guide 141 in order that it may not bind when the cutter-head is moved vertically.

In operation, a series of arallel entries 21 and 22 are first driven lea 'ng away from the mouth of the mine. At the extremity core section from the for movin shaft, a cross entry is driven to connect two of the main entries, leaving a pillar 20 to be worked. The main frame sections 23 and 24 are then assembled in the position shown in Fi s. 1 and 2, the supplementary frame, carrying the severin and dislodging mechanism, being secure in position on the section 23. To begin operation, the supplementary frame is positioned in the entry 21 with its loop -cutter overlapping the edge of thepillar a suflicient amount to sever a illar as the loop cutter moves along lengt wise of the face of the mine "vein. The first cut-is preferably made with the loop cutter in its upper 1)OSltion, as shown in Figs. 1 and 6, and as the cutter moves along the illar the severed material is forced over the receiving table and is deflected by the plate 101-over the pivoted chute 103 onto the main frame, where it is carried b the conveyer 30 through the arch-shape portion of the supplementary frame in the direction of movement of the cutter along the mine vein. The material is moved in this direction in order that it may be discharged into the transport cars by the supplementary section 24 located in the entry 22 toward which the cutting mechanism is moved in operation, thus leaving the entry away from which the cutting mechanism moves, free to receive the cutting mechanism at the beginning of the cutting peration. When the upper out has been completed, the supplementary frame is returned to its starting position, the cutter head is lowered and a second cut is made across the face of the mine vein. This operation is repeated a suflicient number of times to remove a section from the entire face of the vein of the same vertical extent as the thickness of the vein of material being mined. The entire machine is then moved forwardly by the drums 36 and 37 into a new 0 crating position, and the process as descri ed is repeated. This operation may be continued until the entire pillar has been removed. During the operation the roof above the machine may be supported in any well-known manner, the props being removed in the rear of the machine as the machine advances and the roof allowed to fall.

From the foregoing it will be seen that the cutter frame 97, as shown in Fig. 3 is upri ht wall 101 and. therefore provides a tubu ar receiver having an inlet opening at the right-hand end around which the chaincutter 96 moves. Mechanism is provided the receiver and cutting means as a unit engthwise of the-material to be cut above and below and at a horizontal plane. That is to say, the receiver and cutting means as a unit are adjustable in ele-v rigidly connected to the table 100 and the tion.

aoaaees vation to cut an up most section and 'a lowermost sectionan also an intermediate section along horizontal planes. The receiver and its cutting means are provided with conveying mechanism cooperating therewith for ca ing the material away therefrom when t e receiver and cutting.

a continuous. close association with this inlet end. Mechanism is also provided for supporting and operating the receiver and cutting component to unitedly enter and move lengthwise of and through the material cut and :for adjustment of the receiver to various elevations between the floor and roof of themine chamber to receive and carry awaythe cut material passed into the receiver and component at adjusted eleva- It should also be noted that the framework mounted on the

beams

26 and 27 extends from the c'onveyer 23 toward the coal face, as shown in Fig. 1, and therefore the combined receiver and cutting component for cutting and accumulati material therein, as shown in Fig. 1, are edto the outer end of the supportingframe which is mounted on thebeams 26 and 27'. The traveling frame andthe beams 26' and 27-thus constitute a support into which theaccumulated material 1s discharkged, as shown at the left-hand portion of ig. 1. This-su port has a conveyer 23. movableat an an e to the receiver and cutting com onent or conveying the material cut an gathered, away from the receiverand cutting "component. 1 a

It .shouldbe noted that the weight of the material discharged onto the conveyer in the manner shown in Fig. 1, assists in balancing the overhanging portion of thesupplemental frame andthe core-cutting apparatus carried thereby. That is to say,=the weight of the dislodged material when on the concise construction hereindisclosed.

i'eyer adds to the-weight of the mainframe and of the conveyer mechanism in keeping the cutting a paratus upright and preventing it from t1 ting downwardly.

Obviously those skilled in the art may make various changes in the details andarrangement of parts without, departing from the spirit and scope of my invention asdefined bythe claims hereto appended, and I desire therefore not restricted to the prelclaimw 1- In a sy em i-munng, the combine tion with an elongated-endless conveyer spaced a short distance from the'face of a mine wall and located in fixed relation thereto, of apparatus comprising an endlessloop-chaincore-cutter for dislodging matenal from the face of the mine wall,means for sliding said apparatus in a predetermined direction alon said conveyer alon the mine wall while irecting the dislodge .inaterialonto said conveyer, and means for continuously 0 rating said conveyer to transfer the dis 0d d material in a proximately the same direction" as the direction of feed of said dislod a paratus.

2. In a mining mac \ine, t e combination with core-cutting mechanism comprising an endless loop-chain havi an unobstructed core-openin therethroug of means for o r' eratingsai core-cutting mechanism inclu ing feedthereof along the mine wall workmg face, an elongated. endless conveyer spaced a short distance from said mine wall working face, the space between said conveyerand said workmg face being free and unobstructed for movement of sai core-cuttingmbchanism -means movable with said core-cuttin mechanism for gradually and continuous y movingportions of the cut core onto said conveyer, and means for operating said coneveyer in the direction offeeding movement of said core-cutt' nism for transferring the dislodge material toward loading position. e

3. In a mimn machine, the combination with an elonga frame s aced back a short distance fromthe face 0 a mine'wall and substantiallyparallel thereto while occupying a stationary position, of an endless conveyer mounted on said frame, a mining machine comprising an endless loop-chain corecutter ada ted to travel along thefloor of the mine 0 amber between said frame and said mine wall while connected to said frame to slide along the same, means for 0 rating said mining machine including f thereo along the space betweensaid frame and said mine wall, means movable with said minin machine for directin dislo ed materia onto said conveyer, an means or operating said conveyer in substantial] the same-db rection as the feeding path 0 travel of said mechaalong said frame to causesa id cutter to sever a core section from a mine vein, and means can'ied by said frame for transporting the material so severed.

5. In a minin and loading machine, the combination Wi an elongated stationary frame adapted to rest onthe floor of a mine chamber spaced a short distance from the working face, of a min machine sup orted by said frame-in sliding relation tore;

\ withand extendinglaterally therefrom inposition for operation on the mine wall Including feed thereof along said frame,

. endless conveyer mechanism mounted on Said frame, and means for operating said conveyer mechanism to convey the dislodged material in the direction of feeding movement of said mining machine.

6. In a mining machine, the combination with a main frame, of a su plemental frame connected to opposite si es of said main frame to provide apassageway for the transfer of'material along said main frame, means carried by said supplemental frame for severing material from the face of a mine vein, and means for transferringthe material so severed through said passageway and along said main frame toward loading position.

7. In a mining machine, the combination with a main frame adapted to occupy a stationary position with a free and unobstructed space between the same and amine wall, of a mining machine mounted on said frame and extending laterally therefrom for movement along said free and unobstructed space, means for operating said mining machine including feeding movement thereof along said frame to dislodge material from the mine wall, means movable with said mining machine for deflecting the dislodged material away from the mine wall across said space and'above said frame, conveyer mechanism mounted 011 said frame,.and means for operating said conveyer mechanism to transfer the dislodged material in the direction of feeding movement of said mining machine.

8. In a mining machine, the combination with an elongated frame adapted to rest in a stationary position on the floor of a mine chamber a short distance from the face of .the mine wall, of a mining machine comprising an arch-shaped frame connected to lateral spaced-a art portions of said main frame and gui ed along the same, means for operating said mining machine including longitudinal feeding movemefit thereof along said main frame while said archshaped frame spans said main frame, conveymg mechanism extending longitudinally of said main frafne, means for directing dislodged material onto said conveying mechanism, and means for operating said conveying mechanism to convey the dislodged material in the direction of feed of said mining machine and through said archshaped frame between the lateral walls thereof.

9. In a mining and loading machine, the combination with an elongated frame adapted to rest on the floor of a mine chamber in a stationary position with a free and the face of the mine wall,of a mining machine having supporting connections between the same and the lateraledges. on op:

osite sides of said elongated frame, an endess conveyer having superposed portions traveling in opposite directions. along said elongated frame, means for operating said mining machine includin rectilinear feeding movement along sai elongated frame 'to dislodge material from the mine wall and direct it onto said conveyer, and means for operatin said conveyer for conveying the dlslodge material along said elongated frame toward loading position. a

In a mining'machine, a main frame arranged to be positioned along the face of a mine vein, a supplementary frame mounted on said main frame and movable longitudinall thereof, core-cutting mechanism carried y said. supplementary frame, means for moving said supplementary frame along said main frame to cause said core-cutting mechanism to disconnect a core section from the face of the vein, means for directing the material so severed onto said main frame, and means carried by said main frame for transporting the material received thereby in the direction of the feeding movement of said supplementary frame. 11.- A mining and loading machine comprising an elongated main frame adapted to be located substantially parallel to the working face of'a mine wall and spaced a short distance therefrom, of a core-cutting mining machine comprising endless chain kerf-cutting mechanism extending around an unobstructed core-opening, means for guiding the core-cutting mining machine along said frame while'extending laterally therefrom across the space between said frame and said mine walls, means for feed-' ing said mining machine along said frame, mechanism for deflecting the core material away from the mine wall, and an endless traveling conveyer extending along said frame in position to continuously receive pieces of core material extending through.

elevation and in position to' cut a single core of material along said mine wall at each elevated position, means for operating said core-cutting mechanism including feeding movement of said supplemental frame along said main frame, and means for directing pieces of the single core of material from the mine wall onto said endless traveling conveyer. n a

13. In a mining and loading machine, the combination with a a supporting frame adapted to occupy a stationary position substantially aral el with the upright face of a mine wa a supplemental frame carried wholl by said supportingframe and con"- nected. thereto for. guidance along the a same, core-cutting mechanism having, an unobstructed core-opening therethrough and mounted on said supplemental frame in position to cut a single core of material along the upright mine wall, an endless traveling conveyor carried -wholly by said supporting frame,means for 0 rating said core-cutting, mechanism inclu ing feed of said supgilementalwframe along said supporting rame while the latter remains stationary, means for directing "the core of material onto said conveyer continuously during the operation of said NcoreI-cutting mechanism, and means for o rati said conveyor to convey the material in t e direction of feed of theIcore-cuttingnmechanism and toward loading position.

14. In a miningimachine, a main frame having a conveyer movable thereon,a supplementary frame mounted on and supported by said main frame and movab e a longitudinally thereof, said supplementary frame being arranged to span the lateral edges of said conveyor to permit material .tti move on spid conveyler beneathvsaidlsupp ementary rame an cutting apparatus carried by said si lpplementary frame and projecting at one side of said main frame.-

i 15. In .a mining machine, the combination with an elongated main frame adapted. to rest on a minerfloor instationary position with a free and unobstructed spaoebetween said. frame and the upright face of a mine wall, of a supplemental frame having guiding connections with the lateral edges of said main frame, the guiding connection with the a outer lateral edge being interlocking, an endless traveling conveyor mounted on said elongated frame, and apparatus mounted on said supplemental.

frame to dislodgematerial from the mine wall and direct it onto saidconveyer while frame and projecting laterally from said main frame, means for operating said coresupp emental frame.

17. In a mining and loading machine, the combination with a main frame, of an. endless traveling convever mounted on said main frame, a core-cutting mining machine having a single endless. chain kerf-cutter with an unobstructed core-opening extending therethrough, means for guiding said corecutting mining machine along said main frame intermediatethe ends thereof and along anhunobstructed s ace between said mainframe and an upri t mine wall to affect rectilinearfeed of sad kerf-cutter, means in fixed relation to said mining machine for directing dislodged material from said unobstructed core-opening of said corecutting mining machine onto said conveyor, and means for operating said conveyor to convey dislodged material toward loading position while. such mining machine occupies various-positions intermediate the ends of said conveyer. a

18.1In a mining and loading machine, the combination with a main frame having a conveyor thereon composed of superposed portions traveling in opposite directions with the upper traveling portion exposed and adapted to carry large -blocks of dislodged material, of a supplemental frame mounted for longitudinal movement along said main frame and comprising an inverted U-shaped extension to span .said conveyer but leaving a large passageway for the saidlarge blocks of material, cutting mechanism carried .by a said supplemental frame atone side of. said conveyer, means for directing severed material from said cutting "mechanism onto said conveyer back of said U-shaped extension, and means for operating said conveyerto carry the material thereon through said U-shaped extension toward loading position.

19. In a mining machine, a main frame having a conveyor thereon, a supplementary frame mounted on said main frame for movement longitudinallythereof and havin an inverted U-shaped extension to span said conveyor, a 100 core-cutter carried by said supplementary rame at one side of said conveyer: and having itscutting plane at right angles to said main frame, and means frame, a loop core-cutter arranged at one side of said main frame with ts cuttm .plane at right angles thereto, means for d1- veyer, a cutter carried by said supplementary frame at one side of said conveyer, means for moving said supplementary frame along said mainframe to feed said cutter into material to be mined, means for directing material severed by said outter onto said conveyer, and means for moving material deposited on sand conveyer through the span of said supplementary frame in the direction of the feeding movement of said supplementary frame along said main frame;

22. In a mining machine, the combination I with a supporting frame, of a core-cutter having an unobstructed core-opening therethrough and having upper and lower runs rectilinear in elevation in position to cut plane kerfs, means for feeding said corecutter rectihnearly and means for adjusting said core-cutter as a whole rectilinearly and vertically relatively to said frame to effect the cutting of a plane floor kerf at one elevation and the cutting of a plane roof kerf at another, elevation. Y

= 23. In a mining machine, the combination with a supporting frame, of a core-cutter havin upper and lower runs rectilinear in elevatlon, means for holding said core-cutter in all positions thereof relative to said supporting frame, means for feeding sald corecutter bodily along said frame and means for adjusting the entire cutter rectilinearly and vertically relative to said frame to secure the cuttlng of a plane kerf at the floor ofthe mine chamber in one operation and the cutting of a plane roof kerf in another operation. b

24. In a mining machine, the combination with a supporting frame, of an upright loop chain core-cutter having an unobstructed core-opening therethrough and mounted on said frame in position to cut spaced-apart horizontal kerfs, and a communicating back kerf to cut a core extending in ageneral horizontal direction, means for operating said core-cutter includin rectilinear feed of said frame, and means or adjusting said core-cutter rectilinearly and vertically relatively to said supporting frame while the latter remains stationary to secure the cutting of a plane kerf at the floor of the mine chamber in one operation and the cutchamber in another operation.

4 Y j I v tingof a plane kerf at the roof of the mine 25. 'In a mining machine, the combination with a main frame, of aconveyer mounted on said main frame, a supplemental frame.

connected to said main frame and movable longitudinally thereof an uprightcore-cutter having a single loop-chain core-cutter carried by said supplemental frame and .ex-

tending transverse y from said main frame,

means for adjusting bodily the entire corecutter vertically relative to said supplemental frame, means for' feeding said corecutter r'ectilinearly and mechanism for trans- I ferrin cut material to said conveyer.

1 26. n a miningmachine, a main frame, a supplementary frame carried by said main frame and movable longitudinally thereof,

an upright loop cutter carried by said 'su ple'mentary\ frame at one side of said mam frame and having its cutting plane arranged atright angles to said mam frame, means for directing material severed by said cutter onto said main frame, and means for adjusting said cutter vertically on said frame.

27. In a mining machine, a main frame, a conveyer carried longitudinally thereof, a supplementary along said main frame,-anupright loop cutter carried by said supplementa frame at one side of said conveyer and having its cutting plane arranged at ri ht angles to said main frame, means for irecting material severed by said cutter onto said conveyer,

and means for adjusting said cutter as a whole vertically relative to said main frame 28. In a mining machine, the combination with a supporting frame, of an upright standard carried by said frame, loop chainv core-cutting mechanism having an unobstructed core-opening -therethrqugh and mounted on said standard for vertical rectilinearadjustment thereon into a position to cut a core along the roof or into a position to cut a core along the floor, and means for preventin movement of said core-cutter in an are a out said standard. 29. In a mining machine, a frame, an upright standard carried by said frame, a cutter-head carried by said standard, means for adjusting said cutter-head in its entirety vertically on said standard, an upright loop cutter carried by said cutterhead at one side of said frame, and means for maintaining the cutting plane of said cutter in fixed position relative to said frame.

30. A mining and loading machine comprising a main supporting frame adapted to occupy a stationary position near a mine wall, an endless traveling conveyer mounted on said main supporting frame, a supplemental frame mounted on said main y said frame and movable frame mounted for-longitudinal movement frame and deriving its sole support therefrom, said supplemental frame projecting laterally from said main frame toward the mine wall, cutting mechanism mounted on said supplemental frame, means. for operatlng said cutting medhanism including movement of said supplemental frame along said main frame while being supported by the latter, and means for directing cut ma terial onto said conveyer. .1

31, In a mining and loading machine, the combination with a main frame, of a conveyer mounted thereon, a supplemental frame mounted for longitudinal movement along said main frame, core-cutting mechanism having a single loop-chain l erfcutter mounted on said supplemental frame and projecting laterally from one side of said main.frame, means for adjusting the elevation of said core-cutting mechanism relatively to said means for feeding said core-cutter rectilinearly and means for directing cutmaterial from said cutting [mechanism onto said conveyer at the various elevations to.

which said cutting mechanism is adjusted.

32. In a mining and loading machine, the combination with a main frame, a conveyer movable along said main frame, a sup lemental frame mounted for longitudinal movement along said main frame, corecutting mechanism having a single loopchain kerf-cutter mounted on said supplemental frame in rigid relation thereto and.

extending laterally from said'main frame, means for adjusting said core-outtin mechanism relativegto said sup lementa frame while bein held in rigi relation therewith for bo ily movement therewith to cut a core along the roof at one elevation and another core along the floor at another elevation, means for operating said core-cutting mechanism including rectilinear movement of said supplemental frame along said main frame, and means for directing the cut material from said coreutting mechanism onto said conveyer at the various elevations of said core-cutting mechanism and during the o eration thereof including the feed of sai supplemental frame along said main frame.

33. In amining machine, a main frame having a conveyer thereon, a supplementary frame carried by said main frame and movable longitudinally thereof, brackets carried b said supplementary frame at one side 0 said main frame, an upright standard mounted on said brackets, a cutter-head carried by said standard and adjustable vertically thereon, a loop cuttertcarried by said cutter-head, and means for directing material severed by said loop cutter onto said conveyor.

34. In a mining machine, a. main frame having a conveyer movable longitudinally supplemental frame,

thereof, a supplementary frame arranged,

to brid e said conveyer and mounted for longitu inal movement on said main frame, brackets carried by said supplementary frame at one side'of said main. frame, an upright standard secured to said brackets. a cutter-head. mounted on said standard and adjustable longitudinally thereof, an upright loop cutter carried by said cutterhead on the side thereof opposite said conveyer, and means for directing material severed by said cutter past said cutter-head onto said conveyer.

35. In a mining machine, a main frame having a conveyer thereon, a sup iilementary frame arranged to span said conveyer and mounted for longitudinal movement on said main frame while being supported thereby, a cutter-head carried by said sup" plementary frame at one side of said conveyer, severing mechanism carried by said cutter-head at the side thereof opposite said conveyer, means for directing material disconnected by said severing mechanism onto said conveyor, and means for moving the material so directed along said conveyer beneath the span of said frame.

36. In a mining and loading machine, the

combination with a main supporting frame, of a conveyer mounted thereon, an archshaped supplemental frame mounted ifor support on said main frame by spanning said conveyer and having connections with said frame-on both sides of said conveyer,

said supplemental frame being also mounted on said mainframe for longitudinal movement along the same and along said conveyer, and mining mechanism mounted on said supplemental frame for dislodging severing mechanism onto said conveyer in t the rear of said arch-shaped frame, and means for moving material on said conveyer through the arch-shaped portion of said supplementary frame in the direction of movement of said frame along said conveyer.

38. In amining machine, a main frame having a conveyer thereon, an arch shaped supplementary frame mounted on said main frame, means for moving said supplementary frame along said main frame and conveyer, severing mechanism carried by said supplementary frame at one side of said conveyer, means for directing material disconnected by said severing mechanism onto said conveyer in the rear of said supplementary frame, and a guard carried by sa1d supplementary frame at the rear portion thereof for preventingdisplacement of material as it is directed onto said conveyer.

39. In a mining machine, a main frame having a conveyer thereon, an arch-shaped supplementary frame mounted on said main frame, severing mechanism carried by said supplementary frame at one side of sald conveyer, means for directing material disconnected by said severing mechanism onto said conveyer in the rear of said supplementary frame, and a guard plate secured to the rear of said supplementary frame and arranged to extend along said conveyer at the side thereof opposite that from which the material is directed onto said conveyer and to extend across said conveyer in the rear of the portion of said conveyer which receives material from said severing mechanism.

40. In a. mining machine, a main frame having a conveyer thereon, an arch-shaped supplementary frame mounted on said main frame and arranged to span said conveyer so that material may pass along said conveyer beneath said frame, means for moving said supplementary frame longitudinally along said main frame and conveyer, severing mechanism carried by said supplementary frame at one side thereof, means for directing material disconnected by said severing mechanism onto said conveyer in the rear of said supplementary frame as said supplementary frame is moved along said conveyer, and means for driving said conveyer to transport the material deposited thereon beneath said arch-shaped supplementary frame in the direction of movement of said supplementary frame along said conveyer.

41. In a mining machine, a main frame having a conveyer thereon, an arch-shaped supplementary frame mounted on said main frame and spanning said conveyer, means for moving said supplementary frame longitudinally along said main frame, brackets carried by said supplementary frame at one side, of said main frame, an upright standardasecured to said brackets, a cutter-head mounted on said standard, means for adjusting 'said cutter-head vertically on said standard, a loop cutter carried by said cutter-head at the side thereof opposite said conveyer, means for directing material severned by said cutter-head onto said conveyer in the rear of said supplementary frame as said supplementary frame is moved alpn said main frame, means for driving said conveyer to move the material deposited thereon beneath the arch-shaped portipn of said supplementary frame in the direction of movement of said supplementary frame along said main frame, and means for adjusting said cutter-head vertically on said standard.

42. In a mining machine, the combination -with a core-cutter havin an unobstructed and said receiving table relatively to said a supporting frame, and means for operating said core-cutter at its adjusted elevation in cluding rectilinear feeding movement of said supporting frame while said receiving table remains in receiving position back of a said core-cutter.

43. In a mining machine, the combination with a supportlng frame adapted to have a rectilinear path of travel in a horizontal direction, of a core-cutter mounted on said supporting frame for vertical rectilinear adjustment relatively thereto, a receiving table connected to said core-cutter and movable up and down therewith, means for operating said core-cutter including rectilinear travel of said supporting frame to secure feeding movement of said cutter, means for adjusting the elevation of said core-cutter and said receiving table relatively to said supporting frame, and means for deflecting out sections of the core from said table.

44. Ina mining machine, the combination with a supporting frame, of a receiving table carried by said frame at one side thoroof, a core-cutter having an unobstructed core-opening therethrough and carried by said frame at one end of said table, means for operating said core-cutter including movement of said supporting frame along the face of a mine vein to secure feeding movement of said cutter to cut a core section from said vein, and means for adjusting the elevation of said table relatively to said frame.

45. In a mining machine, the combination with a supporting frame, of a'troughshaped receiver carried by said frame for vertical adjustment, means for adjusting the elevation of said receiver relatively to said supporting frame, a core-cutter having an uno structed core-opening therethrough for the passage of a core of material in said receiver, and means for operating said corecutter including movement of said frame and said receiver along the face of a mine vein to effect the severing of a core section from said vein and the passage of said core section into said receiver.

46. In a mining machine, the combination with asupporting frame, of a core-cutter mounted thereon for vertical adjustment, a receiver also mounted on said frame for vertical adjustment and in position to realong said main frame an its various elevations including bodily movement of said corecutter, said receiver and said supporting frame to secure feeding movement of said cutter at its adjusted elevation while said receiver is in position to receive the core at said adjusted elevation.

47. Ina mining machine, the combination with a main supporting frame, of a supplemental frame carried by said main frame, a core-cutter having an unobstructed coreopening therethrough and mounted on said supplemental frame for vertical adjustment relatively thereto and to extend laterally from said main frame, means for ad]ust1ng the elevation of said core-cutter relatively to a said supplemental frame, a core-receiver mounted on said supplemental frame in position to recelve the core from said core-cutter, means for operating said core-cutter in- "eluding feed thereof by movement of said supplemental frame longitudinally along said main frame, and means for deflecting material from said core receiver toward said main frame. r

48. In a mining machine, a main frame having a conveyer thereon, a supplementary frame mounted on said main frame and movable lon itudinally thereof, a cutterhead carried y said supplemetary frame at one side of said main frame, means for ad justing said cutter head vertically on said supplementary frame, a trough-shaped receiving table carried by said cutter-head at the side thereof opposite saidconveyer, a loop cutter carried by said cutter-head at the forward end of said receiving table, means for moving said supplementary frame conveyor to cause said cutter to sever material from the face of a mine vein and to deposit the material so severed on said receiving table, and a deflector at the rear end of said receiving table arranged to direct the material disconnected by said cutter from said table past the rear of said cutter-head onto said conveyor.

49. In a mining machine, a loop chain core-cutter, means for maintaining the cutting plane of said cutter in an upright position, a receiving table arranged in the rear of said cutter to receive material severed thereby, and a ram for removing the material from said table. a

50. Ina mining machine, the combination with a supportin frame, of a core-cutter mounted on said rame for cuttings. single core of material along a. mine wall, means for adjustin the elevation of said core-cutterrelative y to said supporting frame,

means for maintaining the'cutting plane of said cutter inan upright position at its various elevations, means for operating said core-cutter in a direction extending transversely of said cutting plane, a receiver mountedonsaid supporting frame back of said core-cutter in position to receive the cut core therefrom, and means for effecting the discharge of cut material from said receiver.

Ill

51. In a mining machine, the combination with a supporting frame, of a core-cutter having an unobstructed core-opening therethrough and mounted at one end of said a frame, means for maintaining said core-cutter in fixeduprightrelation to said supporting frame, a receiving table mounted on said supporting frame in the rear of said corecutter 1n position to receive the cut core extending through said core-cutter, a flight mounted on said supporting frame for movement through said unobstructed coreopenlng, and means for o crating said flight to force the core materia along said receiving table toward the discharge end thereof.

52. In combination, a mining machine frame, a loop core-cutter carried by said frame at one side thereof, means for maintaming the cutting plane of said cutter in a fixed upright position relative to said frame, areceiving table arranged in the rear of said loop cutter for receiving the material severed thereby, and means carried by said frame and projecting over said table for forcing material from said table at the end thereof opposite said cutter.

53. In a mining machine, a main frame, a conveyer thereon, a supplementary frame carried by said main frame, a loop corecutter secured to said supplementary frame at the side thereof opposite said main frame, means for holding said loop cutter in an upright position with its cutting lane arranged at right angles to said mam frame, a receiving table arranged at the rear of said loop core-cutter, means for moving said supplementary frame along said main frame to cause said cutter to sever material from the face of a mine vein and to deposit the material so severed on said receiving table, and a movable member for forcin material so deposited from said table an for discharging said material onto said conveyer.

54. In a mining machine, the combination including lit) flight connected thereto for engaging the core material left on the receiver after the core-cutting mechanism has completed its stroke across the mine wall to an entry, to effect the removal of such remaining core material from said receiver.

55. In a mining machine, a main frame having a conveyer thereon, a supplementary frame mounted on said main frame and spanning said conveyer, a cutter head carried by said supplementary frame at one side of said main frame, means for adjusting said cutter-head vertically relative to said supplementary frame, a loop cutter carried by said cutter-head at the side thereof opposite said main frame, a receiving table arranged in the rear of said loop cutter for receiving material severed thereby, means for moving said frame and cutter along said main frame to cause said cutter to sever a core section of material from the face of a mine vein and to deposit said material on said receiving table, means carried by said cutter-head for discharging the material so severed from said table onto said conveyer, and means for driving said conveyer to move the material so discharged beneath the span of said supplementary frame in the direction of movement of said supplementary frame along said main frame.

56. In a mining machine, a cutter-head, a loop cutter carried by said cutter-head in an upright position at one side thereof, a receiving table arranged in the rear of said cutter for receiving the material severed thereby, means for adjusting said cutterhead and table vertically, and a discharge chute pivotally carried by said receiving table.

I 57. In a mining machine, the combination with a main frame, of an endless traveling conveyer mounted-thereon, a supplemental frame having guiding connections to said main frame and being movable along said main frame while the latter remains stationary, severing mechanism mounted on said supplemental frame and extending laterally therefrom in position to operate on an upright mine wall spaced from said main frame, a table mounted on said supplemental frame in position for receiving material dislodged by said severing mechanism, and a discharge chute extending from said receiving table to said conveyer to direct dislodged material from said table onto said conveyer for the various positions of said supplemental frame along said main frame intermediate the ends of said conveyer.

58. In a mining machine, a main frame having a conveyer thereon, a supplementary frame mounted on said main frame and m0v able longitudinally thereof, a cutter-head carried by said supplementary frame at one side of said main frame, means for adjusting said cutter-head vertically on said suploop cutter in fixed plementary frame, a loop cutter carried by said cutter head at the side thereof opposite said main frame, means for holding said position in an upright plane at right angles to said main frame, a receiving table arranged in the rear of said loop cutter, means for moving said supplementary frame along said main frame to cause said cutter to sever a core section from the face of a mine vein, and to deposit the material so severed on said receiving table, a discharge chute pivotally secured to said table at the end thereof opposite said cutter, and an endless chain carried by said cutterhead and provided with a flight arranged to move material from said receiving table over said chute onto said conveyer.

59. In a mining machine, the combination with a supporting frame, of a cutter frame extending from one side of said supporting frame transversely of the path of movement of said supporting frame, said cutter frame having an unobstructed core-opening therethrough, an endless chain cutter mounted on said cutter frame to travel around said unobstructed core-opening, n'leans for feeding said cutter rectilinearly, means for adjusting the elevation of said cutter frame rectilinearly, a motor mounted on said cutter frame to move rectilinear-1y up and down therewith, and driving mechanism between said motor and said chain cutter mounted to move up and down with said motor and said cutter frame.

60. In a mining machine, a main frame having a conveyer thereon, a supplementary frame mounted on said main frame and movable longitudinally thereof, an upright standard carried by said supplementary frame at one side of said conveyer, a cutter head mounted on said standard and adjustable longitudinally thereof, gearing for moving said cutter-head along said standard and for moving said frame along said eonveyer, and a motor carried by said cutterhead for operating said gearing.

61. In a mining machine,'the combination with an elongated main frame adapted to rest in stationary position on the floor of a mine chamber spaced a short distance from a mine Wall, of a supplemental frame mounted for movement along said main frame. a core-cutter mounted on said supplemental frame and extending laterally from said main frame to the mine wall, means for adjusting said core-cutter vertically rectimounted on said supplemental frame for driving said adjusting means and for driving said core-cutter, and means for moving said supplemental frame along said main frame to effect feeding movement of said.

core-cutter at its adjusted elevation.

62. In a mining machine, a mam frame havmg a conveyer thereon, an arch shaped lllll linearly on said supplemental frame, a motor 1,5aa,ees

supplementary frame mounted on said main for operating said nut and frame-moving means.

63. In a mining machine, the combination with a frame. of core-cutting mechanism carried by said frame and having an unobstructed core-opening therethrough, means for o erating said core-cutting mechanism inclu ing feeding a movement thereof by bodily movement of said frame to cause said core-cutting mechanism to sever a core section from a mine vein, andmcans mounted on said frame and movable relative thereto a for discharging the severed material therefrom independently of bodilymovement of said frame.

- 64. In a mining machine,a frame, a core:

cutter carried by said frame, means for moving said frame and cutter along a mine vein for severinglia core section from said vein, and for forcing the material so severed from said frame by the resistanceolfercd by the unre-moved portion of the mine vein, and means movable on said frame for discharging therefrom material remaining on said frame at the end of a cut. a

65. In a mining machine, the combination with core-cuttingme'chanism having an unobstructed core-opening therethrough, of means for operating said core-cutting mechanism to cut a corejfrom the face of a mine vein, a receiving table in position adjacent said core-cutting mechanism to re ceive and carry the corematerial, and mechanism movable relatively to said receiving table for moving the material along said table and off therefrom.

66. In a mining machine, the combination with a supportingframe, of a core-cutter havin an unobstructed core-opening and carrie by said frame atone side thereof for the passage of a core of material therethrough substantially parallel to the path of travel of said supporting frame, a receiving table arranged at the rear of, said core-cutter and movable with said framebeneath the core of material, means connected to said frameand movable therewith for deflecting the core fromsaid receiving table,

and a device for removing from the receiving table the material that remains thereon when a cut is completed and no unmined mass remains immediately ahead of said core-cutter. a I

67. In a mining machine, a frame, a core cutter carried by said frame atone side thereof, means for movingsaid frame along the face of a mine vein to cause said cutter to sever a core section ofmaterial from said vein, a receiving table positioned in the rear of said core cutter andmovable beneaththe material severed by said cutter, a deflector for directing the severed material from. said table durin the movement of said frame, and means or discharging the material from said table when said frame is at rest at the end of a cut. a a

68. In a mining machine, a frame, a core cutter carried by saidframe, means for moving'said frame and cutter along the face of a mine vein to sever a core section of material from saidvein between'spacedapart entries, a receiving table positioned in the rear of said cutter for receiving the material severed thereby, a deflector arrangedto direct the severedmaterialfrom: said receiving table as said material is forced by the movement of said frame and the resistance of the unsevered" portion of said vein againstsaid deflector, and a devlce for dischar ng material from said receiving table w en said frame has been brought to rest at the end of a cut atone of said entries.

69. In a miningmachme, the combination with a sup orting frame, of core-cutting mechanism a aving an unobstructed. coreopening therethrough and carried by said supporting frame to extend laterally there* from transversely of the path of travel of said frame, means for operating said corecutting mechanism including feeding movement thereof by movement of said frame along a mine wall substantially parallel thereto to cut a core along the mine Wall be tween spaced a art entries, a platform mounted on sax frame for receiving the cut material, and mechanism movable over said platform longitudinally of the same to engage the remaining core at the finishing entry and move such remaining core from said platform.

70. Ina mining machine, the combination with a supporting frame, of a core-cutter frame extending laterally from said support ingframe: and having an unobstructed core opening therethrough, a chain-cutter carried by said cutter frame, means for driving said chain-cutter, means for moving said supporting frame and said cutter frame rectilinearly along a mine wall between spacedapart entries toefi'ect feeding movement of said chain-cutter Whlle being driven to cause the cutting of a core of material between jsaidentries, a tablemounted on said supporting frame back of sald core-cutter frame in position to receive the core extendmg through said unobstructed core-opening, a deflector at the rear portion of said supporting frame in position to engaga the core of material and move it from sald receiving table toward that side of said supporting frame opposite the mine wall, and mechanism mounted on said supporting frame in position for engaging the core remaining onthe table after reaching the finishing entry and moving core from said receiving table. I V

71. In a mining machine, a frame, a cutter carried by said frame, a table positioned in the rear of said cutter for receiving material severed thereby, a deflector mounted on said table at the end thereof opposite said cutter, a contact member, and means for moving said contact member over said table to, slide the material thereover against said deflector to discharge the material from said table.

72. In a mining machine, the combination with a supporting framle, of a cutter head carried by said frame and having an unobstructed core-opening therethrough, severing mechanism carried by said cutter head, a table. carried by said frame in position to receive the core of material extending through said unobstructed core-opening, a movable flight mounted on said frame inposition for engaging the forward endof the core of material, and means for operating said flight to engage the core of material and slide the same oversaid table and off from the same.

73. In a mining machine, a frame, a cuttor-head carried bysaid frame, core-cutting mechanism carried by said cutter-head, a table carried by said cutter-head in the rear of said core-cutting mechanism and arranged to receive the material disconnected thereby, a deflector positioned on said table at the end thereof opposite said core-cutting mechanism, a flight carried by said cutterhead, and means for moving said flight to force material along said table and against said deflector to discharge said material from said table.

74. In combination, a mining machine frame, a loop core-cutter arranged in a vertical plane at one side of said frame, a receiving table positioned in the rear of said loop core-cutter, a deflector mounted on said table at the rear end thereof, means for moving said frame and cutter along the face of a mine vein to'cause said cutter to sever a core section from said vein and to force the material so severed against said deflector to cause said material to be discharged from said'table, and means carried by said rame for discharging material from said table independently of the movement of said frame.

75. In a mining machine, a frame. a cutter-head carried by said frame, a loop core-cutter carried by said cutter-head at such remaining one side thereof, a receiving table carried by said cutter-head in the rear of said loop I cutter, a deflector mounted on said receiving table at the rear end thereof, means for movlng said frame along the face of a mine vein to cause said loop cutter to sever a chain for operating said flight, i

mental frame mounted on said main frame and movable along the lateral edges thereof,

and corecutting mechanism carried by saidarch-shaped frame atone side of said main frame.

77. In a mining machine, the combination With an elongated main frame. adapted to be mounted in stationary position on the floor of a mine chamber, of a conveyer carried by said elongated main frame and movable longitudinally thereof, an arch-shaped supplemental frame mounted on said main frame and arranged to span said conveyer to be guided along the lateral edges of said 1 main frame, and dislodging mechanism carried by said supplemental frame at one side 1 of said main frame.

7 8; In a mining machine, the combination with an elongated main frame adapted to 00- cupv a stationary position adjacent a mine wall, of an endless conveyer mounted on said elongated frame, an arch-shaped supplemen- 1 tal frame spanning said conveyer and guided along the lateral portions of said elongated frame, and dislodging mechanism carried by said supplemental frame and movable along said mainframe to direct material onto said conveyer.

79. In a mining machine, the combination with a main frame, of an arch-shaped supplemental frame connected to said main frame to span the same and be guided longitudinally thereof, core-cutting mechanism side of said main frame and adjustable vertically of said supplemental frame, and means directing severed material onto said main frame.

80. In a mining machine, a main frame, a conveyer carried by said main frame and movable longitudinally thereof, an archshaped supplementary frame spanning said main frame and conveyer, and movable longitudinally thereof, core-cutting mechanism carried by said supplementary frame at one side of said main frame and adjustable vertically relative thereto, means for directing material from said cutter-head onto said carried by said supplemental frame at one I lift)