US1440790A

US1440790A - morgan

Info

Publication number: US1440790A
Authority: US
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

Jan. 2, 1923. 1,440,790

E. C. MORGAN. l MINING AND LOADING MAcHmE,

ORAGINAL FILED Nov. 15, 1915. 8 SHEETSSHEET I 1 zm z 67/4 74 2 N ML; in 54? 3 6 j agw Jan. 2, 1923. V

E. C MORGAN. MINING AND LOADING MACHINE. ORIGINAL F| LED Nov 15 1915 8 SHEETSSHEET .2

0 3 uv n 7 E 9 H 6 s 4 s 4 T 9 5 a H s 8 5% 9 c. ,M w 6. m O Ow M E um N v c: L A N m Mm 0 Jan. 2, 1923.

w xww %mmw ML f5 8 $HEETSSHEET 4 Jan. 2, 1923.

E. C. MORGAN. MINING AND LOADING MACH NE ORIGINAL F| LED Nov I5, 1915.

( fy/WW Jan. 2, 1923. r 1,440,790

' E. C. MORGAN. MINING AND Logomc MACHINE Omsnm. FILED Nov. 15. 1915v 8 SHEETS'SHEET 6 I i il-illlll ar Q55. liym $14M W Jan. 2, 1923. "1,440,790

E. c. MORGAN.

Mmme AND LQADINGMACHINE. Omrsmm. FILED Nov, "15'. 191-5. 8 swears-snarl 7 Z f y/WM W M Jan. 2, 1923. 1,440,790

E. C MORGAN. Ml NING AND LOADING MACH|NE ORIGINAL FILED Nov. 15, 191

8 SHEETS-SHEET 8 1/85 154 H: W, m, my

Patented Jan. 2, 1923.

* UNITED STATES EDMUND o. MORGAN, OF NEW YORK, N. Y.

MINING AND LOADING MACHINE.

Application filed November 15, 1915, Serial No. 61,481. Renewed September 16, 1919.. Serial No. 324,230.

To all whom may concern-.-

Be it known that l], EDMUND C. MORGAN, a citizen of the United States, residing at New York. in the county of New York and State of New York, have invented certain new and useful Improvements in Mining and Loading Machines. of which the following is a specification.

This invention relates to mining machines for severing coal or other material from its native bed, and for transferring the severed material to a position to be loaded into a car or othertransporting means. The invention consists in the combination and arrangement of parts setforth in the following specificatiomshown in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings 1 is a side elevation of a complete ining machine in position in a mine chamber.

Fig. 2 is a top plan view of the machine shown in Fig. 1.

Fig. 3 is a longitudinal sectional view of the machine shown in Fig. 1 substantially on the center line thereof.

Fig. 4 is a horizontal sectional view substantially on line H of Fig. 3.

Fig. is a horizontalsectional view looking upward on line 55 of Fig. 3.

Fig. 6 is a central longitudinal sectional view of the operating mechanism for the cutter and associated parts on a plane at right angles to the cutter frame.

7 is a transverse sectional view substantially on line 7-7 of Fig. 6.

Fig. 8 is a transverse sectional view substantially on line 88 of Fig. 6.

Fig. 9 is a central longitudinal sectional view of the cutter operating mechanism taken on a plane parallel with the cutter frame.

F 10 is a transverse sectional view on line IlO-10 of Fig. 6.

Fig. 11 is a fragmentary sectional view on line ll ll of Fig. 6.

12 is a transverse sectional view on line 1212 of Fig. 9, the outer cylinder not being shown.

13 is a side elevation of the cutter head and associated parts of a modified form of the invention.

*i 14 is a top plan view of the mecha- Fig. 18 is a plan view of the cutter frame.

l'fig. 19 is a fragmentary detail showing the corner construction of the cutter frame. Referring to the drawings, the numeral 1 designates a frame on which the various 0pcrating parts which comprise the present invention are mounted. Frame 1 includes a pair of side plates 2, having their lower p013 tions connected by a base plate 3, and having their upper portions connected by a pair of cross bars 4 and 5, one at each end of the frame.

Supported by the stationary frame 1, and arranged to swing thereon to various operating positions, is a movable frame 6, having side bars 7 connected at their bottom edges by a base plate 8, and having a conveyor bed plate .9 extending from one bar 7 to the other, and positioned above the base plate 8. The frame 6 is pivotally supported at its rear end on the cross bar 5 of the main frame 1, as best shown in Fig. 3, by means of a bearing 10 and apivot bolt 11. Secured to the lower side of the forward portion of the movable frame 6 is a transversely extending arcuate bar 12 arranged to rest upon the bar a. The bar a, as best shown in Fig. 5, is also arcuate in shape, the center of curvature of the two bars being located at the center of the pivotal connection between the frames 1 and 6. It. is thus seen that the

bars

4 and 12 form a track or slideway for supporting the frame 6 as it is swung about the pivot bolt 11.. The inner edge of the bar 4, as shown in F 5, is provided with rack teeth 13, and mechanism is carried by the frame 6 provided with a pinion arranged to mesh with these teeth to move the frame 6 relative to the frame 1 in a manner to be described.

Carried by the lower surface of the base plate 8 of the movable frame 6, Figs. 1, 3 and 5, is a motor 14 which drives a pinion 15 (Fig. 5) arranged to mesh with a gear 16 mounted for rotation on a counter-shaft 17. Concentric with the gear 16, and integral therewith, is a pinion 18 arranged to mesh with a gear 19 rigidly secured to a shaft 20 (Fig.3) carried by a bracket 21 also secured to the lower surface of the base plate 8. Mounted for rotation on the s ft 20 is a worm 22 (Fig. arrangd'to mesh with a worm gear 23 rigidly secured to the lower end of the vertical shaft which is also supported by the bracket 22. rally se cured to the vertical shaft 241, perating in an opening'in the bracket above the worm wheel 23, is opinion arranged to 1 mesh with the teeth 13 on the arcuate cross of the main frame 1.

bar ii; carried by the main frame 1. if: clutch 26 is slidably mounted on the shaft 20 and is arranged to clutchthc worm to the shaft 20 for rotation therewith. Ii rod extending transversely of the machine frame is arranged to operate the clutch is provided at each side of the nr'chinc with operating handles 28. it will be seen that by this train of gearing the operator by moving one of the handles 28, may connect.

the'motor with the pinion and cause said pinion to rotate in mesh with the teeth for rotation therewith and thus drive the beveled pinion carried at the end of this shaft, as vshown more particularly in Figs. 1 and 5. The beveled pinion 33 is arranged to drive a chain of gearing comprising the l) and pinionstlri. 35, 36 3. and 38, (i

including the shafts and Q0. The pinion,

38 is rigidly secured to the end of a shaft 41. extendim 6 at the rear end thereof. The shaft il, as shown in Fig. 3, carries a series of sprocket -wheels d2 arrangeiil to drive a conveyor belt which extends longitudinally of the frame- 6, and which has its upper run siiipported by the bed plate 9 and its lower run supported by the base plate 8 of this frame. The forward end of the conveyor (+13 traxels over a roller a l, mounted for free rot: ion on a shaft 45 which extends transvers of the frame 6 near the forward end tllG-QOii. It will be apparent from the drawing and oescription that the operator, by moving one of the'handles may connect the motor A through the train of gearing described, with the conveyorbelt 41-3. to cause this belt to travel over its bed plate 9.

y j Mounted on the base plate 3 of the main frame 1 is a motor 46, Figs. 3 and 4-, ar-

transversely of the movable frame ranged to drive a shaft 47 through a train of gearing 48. Mounted for free rotation on the shaft 4! is a pair of

drums

49 and 50, and a pair of clutches 51 and'52 are arranged to clutch the

drums

49 and 50 respectively with the shaft 4c? to rotate there- The

clutches

51 and 52 are independently controlled by bars 53 and 54: respectively extending transversely of the machine frame, and each provided with two pairs of levers and 56, one, lever positioned a-t'each side of the machine for 0perating each of the bars and respectively Secured to the drums i9 and 50 respectively. and arranged to wind thereon, two cables 5'? and58. These cables pass through pairs of leaders located one at each side oi the main frame 1. for gniding the cables to the sides of the mine chamber. The cables and 58 are provided with books 60 arranged to be engaged withmine props 61, which may be secured at suitable positions in the mine chamber. Byproperly positionin the props 61, and by winding cables 5? and on the

drums

49 and 50, the mining machine maybe moved forwardly in the mine chamber as occasion "requires, or shifted from one sidethereof to the other if at any time such shifting becoinesdesirable.

As shown in Figs. 1, Q'and 3,ftl1e sidebars 7 of the movableframe 6 extend forwardly, and ai'e provided at their front 'endswith bearing rings 62. Mounted. for rotationin hearing rings 62 as'best shown in Figs, 6 and 9, is a hollow frame oraxleti which is split into two sections along a central plane, as indicated in Figs. 6 and 8, and which carries interiorly thereof the' operating mechanism for the cutter and co-operating parts. The hollow axle 63 is provided with a series of transverse webs 6%, and 66, which are provided with bearii'igs 67 68 and 69 respectively, in which are independently journaled a pair of

motor armatures

70 and 71. A shaft 72 of the armature T1 with.

is extended to the left Figs; Gfand 9, and is supported at its end by an additional timeverse web This shaft 72 has rigidly secured thereto a worm '2'6 and a pinion 75. The worm ,76 is arranged torn'esh with worm gear 76 carried on a transverse shaft 77 which is provided" with a second worm 78, Figs. 6 and 7, which meshes'with a worm wheel 79 carried by a shaft 80 extending longitudinally of the axle, 63 near the periphery thereof, and mounted in a hearing 81 rigid with the aXle 63. On the end of the shaft 80 OppOsit-e'thewOrm wheel T9 is a pinion 82 arranged to mesh with the teeth of an internal gear 83, as shown in 6 and 10, The internal "gear 83 as shown in 6, is'provided with an offset portion 84Pwhich fits into the bearing '62, and is rigidly keyed theretoby 'keys 85. The interior of the oifset portion 84 82 will cause this pinion to travel around ment.

the interior of the gear 83, and since the bearing 81, which supports the pinion 82, is

rigid with the axle63, themovemeut of the pinion 82 will cause the entire axle to rotate in the bearing 62. It shouldbe noted that two worm gears are interposed between the armature 71' and the pinion 82, and that the rotary movement of the hollow axle 63 will therefore be a slow andvery powerful move The worm gears also serve to hold the hollow axle in whatever position it is turned to by the-movement of the motor comprisingthe armature 71.

The pinion 75 carried by the shaft 72 meshes witha gear 88 mounted for free rotation on 'ashaft 89.journaled in bearings secured to the.

webs

66 and 73. A clutch 90, Figs. 6 and 7, is provided on the shaft 89 for clutching the shaft to the gear 88 to cause it to rotate therewith. The clutch 90 is operated by a rod 91 which extends longitudinally of the axle 63, and is provided with anoperatinghandle 92 positioned exteriorly of the axle at one end thereof, Fig. 1. The shaft 89 carries a. pinion 93 arranged to mesh with a beveled. gear94 secured to the shaft 95, which is provided with a sprocket wheel 96 located at one end of the axle 63. In this way the sprocket 91 maybe driven by the armature 71, the movement of the sprocket being controlled by the clutch 90 and its'operating lever 92.

' The motor comprising the armature 70 drives a shaft 97, which has the end thereof adjacent to the end of the co-axial shaft 98. A. friction clutch'99 is provided for clutching these two shafts together. The clutch 99 is operated by a rod 100 and a handle 101 mountedon the end of the axle 63. The shaft 98 carries a pinion 102, Figs. 6 and 12, which meshes with a gear 103 rigidly mounted on a shaft 104, which also carries a pin ion 105. Pinion 105 meshes with a gear 106 mounted for free rotation on a stub shaft 107., which is rigidly carried in a bearing member formed integral with the axle 63.-

As shown in Figs. 6, 11 and 12, the teeth of the gear 106 are arranged to project beyond the periphery of the axle 63 through an opening therein, for a purpose to be de-- scribed.

Completely surrounding the axle 63 and arranged for free rotation thereon, as shown in Figs. 2, 3, 6 and 9, is a sleeve or hollow cylinder 108. As indicated in Figs. 6 and 9, the sleeve 108 is ournaled upon the axle 63 at each end, but is slightly spaced away from the axle throughout the greater part of its length. The end of the sleeve opposite the gear 106 is provided'with inwardly projecting gear teeth 109, Figs. 9 and 11. The teeth .109 are arranged to mesh with the teeth'of the gear 106, andin this waythe when the screws 112 are in proper position to hold the

plates

110 and 111 in place. Fastened to each of the

plates

110 and 111 are two clamping members 113 and 114, held in place bv cap screws 115. For the purpose of severing the material to be-mined from themine wall, a U-shaped cutter bar 116 is provided, the legs of which are arranged to be clamped to the

plates

110 and 111 by the clamping members 113 and 114. It will be apparent that the cutter bar 116 may be adjusted relative to" the cutter head by loosening the'cap screws 115, and sliding the legs of the barbetween the plates 113 and 114. When the bar is properly positioned, the

"cap screws 115 are tightened to hold it rigidly inplace. An endless cutter chain 117 is carried at the forward edge of the bar 116,

and is caused to travel along this bar by the sprocket wheel 96- over .which the chain passes, as shown in Fig. 9. It will be understood that the rotation of the hollow axle 63 by means of the armature 1 71, pinion 82 and connecting gearing, will move the cutter bar 116 to force said bar into the material to bemined. Simultaneously with the feedtwo arms 119, one at each end of the hopper,

and two

plates

120 and 121 extending longitudinally of the hopper from one arm 119 to the others The plate 120 extends tangentiallyat one of its edges from the sleeve 108, and the other edge of this plate meets with one of the edges of the plate 121 at 122, to form with the arms 119 a closed pocket or hopper. As will be seen from Fig. 3, a portion of the wall of the sleeve 108 is removed 1 adjacent the hopper 118. This is to permit access to theaxle 63 enclosed within the sleeve. It will be seen from Figs. 6'a'nd 9 that the ends of the sleeve 108 co-operate with the transverse walls of the axle 63 and with inwardly projecting ribs 123 carried,

the parts in place relative to one another hy the sleeve 1.08 to form closed grease pockets in which the gearing for: drivingthe various parts operates.

=Extending hetweenxthe side Walls 7, .-and pivotally mounted thereon -at=,124e, is. a :chute or slideway having sidewalls 126yand bridging the spacehetween the end-.ofwthe conveyor chain e landcthe upperyportion of the sleeve 108. The chute '125i'h2lSfii3Sf0fward edge :12? vhevele'd tosfit closely .against the periphery of the sleeve 108 as shownin lilig.

The operation of the (parts :thus iar ..de scribed maygnouw'heounderstood. :The machine .is'placed in a minechamher, as shown in '1, 2. 211141 ihcandhopper 118 land the utter. ban -116' hcingswung in a: elockwiserdi- -ectio: we'd.inathe:.dnaavings.,inntil=the portion oi"- thehopper:1-18rc0ntactswith the chute .125 :lifting the chute ;.about11its pivot 12%, rand permitting theihopper. .tohoccupy. a .tpositionibetween the sides 7 f 1 the movable aframe 6. :The cutter bar 116,.wi'l1 thenwoccupyposition. just back ofzthat .occup-ied' by the; portion 122 01; the. hopper 118 ss-showndnt-Eig; 1. Zith theflipartscthus -ositioned thepanmature '71 will beener ized P a a to drive the: chain; 117. .flIlCLtOKIOtfltBi the axle 63 to r-feedzthe cutterxhar:116yinto: thematerial vto he iminedethus; forming a ,kerf: 128, a and severing: a section iof. material 129 from the wall. Ofttllfilllil'lfi, .aszsh'own in Fig. 11. theiaxle;63 rotates, it. will ca-rryythe. stub shaft 107 and! the .gear 106: -t'-LI011I1Cl'2Witl1 it. If. the: sleeve 108 andnthehoppera118.;remain stationary; this will iCElllSG :a rotation of; the train of gearing. connected: with the gear 106. The rotationolith-is gearing will cause-a certain amount/of drag, .due to .thezfr ictioniof a the: gearing upon :the sleeve: 108,; tending .to rotate thev sleeve in unison with-.the cutter in Fig. 1, Where it is stoppedlhvcontact "with the section of severed coal; Ituthesdrag caused by the -gearing" alone. is not .zsuflicient the clutch' 99-may be: locked, and theresistance of theiarmaturel to rotate he .iadded -to that of the train of gearing. As .thecutter I 116. oontinuesits operation, the drag. onthe gear 1106 will continue to holdthehopper 118 innposition. After the cutter .116 has reached its uppermost position and completely -severed the section of material 129' from the mine wall, the-motor 71 is stopped,

and the cutteris held inposition'by; the wormgearingby which it is driven. The motor'70/is now. actuated, and the clutch/99 thrown intorotate the gear 106. lSincezithe GO- shaft 107 011111 111011? the gear .106 is; mounted is held from rotationcbyrthe :worm gear by which the hollow axle163, is driven, rotation i of the 'gear J 106 wi1l cause :the sleeve 108 to .EGVOLVGILELbOIlt .the 332(16163, :.-.and' carry; the ,g hopper 118 upwardly a "counterclockwise .heing made sideov side 1 the the chamber.

previously described.

has secured to its forwardedge a-slideway zmade up of straight-sections 132' and corner -har 116. 'Thisusuallyiwill besu'fficient, to bring thehopper 118 into theposition shown a complete .ring-which-has. the groove 135 ;diiection,.,as viewed-in Figs. 1 andfi. This movement of thekhopperwill orce the sevcred material upwardly "before it and through the loopy-formed Eloy the cutter bar 116 onto the-chute 125. {If fthe (material 70 breaks apart it will beheld from escapeby the "presence or thesleeve 108 and by the hopper 118. When the material-isdeposited upon the. chute 125;it will slide downwardly and haelzwardlyonto the conveyor143 which .driven by the -motor ,14 in the manner previously described, ;to transfer the ma- .tterial totherear end of thein'ach ne, where it isdischargedinto' scar 130 carried on a track 131.

A. .1. .z.:iine,cl iainher is it ofithree cuts i .h' To position tne machine for making these cuts, the n'icVahlerrams-G is swung lateraliy about the .pivot 11 to bring thecutter bar 116,111 the proper position for making the various cuts. This swinging movement is accomplished by .nieansuofthe motor 1e and the pinion 25 inthema-nner filter each; series of cuts has been m'arleythe machine is moved forwardly into position tomake asecon'd series by means of. the

cables

57 and 58 and their co-o.perat1ng meihanism.

,Since .the

movable frame 6 STViIl8gttlO0llintL pivot locat- 1 ed substantially the rear end otthe frame, theglateral movement .ofthe frame will not disturb the. properv position of the discharge end of. the conveyor 13. relative to the car130. 500

The con truction otthe cutter har and chain will best be understoodhy reference to Figs. 16.:to 19. inclusive. The cutter bar 116 as shown inFiglS, is.-,.U-shaped, and

sections 138. The slideway is secured to the cutter bar 116 byvi'ivets'13 1, and isprovided with a groove :135 for guiding the. cutter chain 117 The slideway is made insections as shown to facilitate.theprocessof construction. Thegroove-135 may be formed in straight sections on a milling machine, and the corner sections 133 may be formed from machined therein on lathe. T he chain 117 is providedwith linhs136, having forwardly .projecting'bit sockets 13? carrying hits 13 8 for cutting the material. to he mined. Guide lugs 139 extend rearwardly from the links J. 136,vand; fit into the groove 135. The lugs 139 and thegroove are given tworight angle turns, as shown in Fig. 17, to prevent lateral play of the chain.relativetothe cut-- ter bar. Spring pressed friction devices 140 iLIGwPIOVlClQCl' for holding the hits 138 111 'place, andispring clips. 141 arezarrangedfor .detachably holding the links ofthechain tolines, fofholding the hopper 118 in poi to meet the sect-ion of severed, material,

cutting mechanism, and a conveyor in posiform of cutter head used in mines where the coal. breaks up readily. In this form of cut ter head the severed coal iscompletely enclosed, so that t ere no opportunity for finely broken par rice to escape, is shown in Fig. 13. the hopper. 118 made deeper than in the form shown in l. and the legs of the cutter bar 116 provided on their lower edges with which are arcuato overlap the sides of the construction the sides 01 i cut are pletely closed. and all the lineparticles of coal are prevented from escaping. lof the drawings, the lines of the rut made in the material to be mined are r coresented by broken lines. In Fig. 15 is sh n a pivoted stop member This meznbv may be thrown into inoperative position shown in broken hnes 1n the r 1g. 13, or n be swung into the position shown 1 prevent the hopper from swinging don: wardly and. barkwardly during t e cutting oocration under the weight of detached portions of the material in the drag caused by the train of gearing connected the gear 1.06 is insufficient to hold the hopper in place while the cutter is being operated.

V? hat I claim new, and osire to "ecu 'e by Letters Patent of the United mates is i '1. 111 a mining machine, the combinatirm with core-cutting mechanism having an unobstructed core opening therethrcugh, of means for operating said core-cuttingmechanism including upward. swin ing feeding movement thereof about a sub nrialhori- PliOlIttl axis. means sepa: and in" pendent from said core-cutting mechanism for moving the corefroni the position it occup id in its native bed imwardly and bachtl'iroun the opening said a tion for receiving the material thus moved. from the mine wall.

in a mining machine, the. combination. .i owe-cutting mechanism having an unobstructed core opening thercthrough, of a hopper for receiving the cut material, means for operating said core-cutting mechanism including up ard swinging feeding move ment thereof independently of movement of said hopper, and means for swinging said hopper upwardly to discharge the cut material to a position from w iiclfit may be trans ported.

3. Ina mining machine, the combination with core-cutting mechanism, of a hopper having its wall shaped to conform to the core cut by said core cutting mechanism. means for supporting said hopper for movement into position to bring its walls adja coin-- core, and means for moving said hopper to discharge the :jlislodged material therefrom. 4. In a mining machine, the combination with a core cutter having an unobstructed core opening therethrough and comprising chain cutting mechanism, of means for operating said core cutterto cut a core in a single feeding movement, a hopper for receiving the material severed by said core cutter, and means for moving said hopper and said core cutter independently of each other but'about a common axis of arcuate movement. 1

i 5. In a mining machine, the combination with cutting mechanism for severing ma]- terial to be mined by forming a kerf in said material, of a hopper having walls arranged to conform to the kerf made by said cutting mechanism, means for supporting said cutting mechanism and said hopper for arcuate movement on the same axis, and means for swinging said hopper upwardly about such axis for carrying the materiall severed by said cutting mechanism into a position from which it may be transported. 6. In a mining and loading machine, the combination with core-cutting mechanism having an unobstructed core opening therethrough, of transferring mechanism having a receiving portion located above the axis of movement of said core-cutting mechanism, means for moving the severed material upwardly from the position it occupied in its native bed into position for discharge onto said receiving portion of said transferrin mechanism, and means for operating saio core-cutting mechanism including upward swinging feeding movement thereof on its said axis independently of upward movement of said discharging means. H I '7. lna mining and loading machine, the combination with a supporting frame, of core-cutting mechanism mounted to swing on a substantially horizontal axis on the forward end of said frame, a conveyor extending longitudinally of said frame, a hopper mounted on said frame in posltion to receive dislodged material of said core, means for operating said core-cutting mechanism including upward swinging feeding movement thereof while said hopper remains relatively stationary, and means for. swinging said hopper upwardly about the horizontal axis of said core-cuttingmechanism to discharge the dislodged material in said hopper onto the forward end of :said conveyor. 8, In amining machine, the combination with a supporting frame, of cutting mechanism supportedat one end of said frame, a slideway carried by said frame and extending rearwardly and downwardly from. said cutting mechanism when the latter is in its upper position, means for operating said cutting mechanism including; feeding movementj... thereof to such uipper' position,- and means" mounted for movement independent ofgaidicuttingj mechanism for receiving the severed material and discharging. the same onto" sir-id slidevvay;

9111i mining machine, the combination with a" supporting frame; oi? a conveyor mounted on said frame to extend" longitudinally thereof a' cutte1'* l1ead carried by saidframe, I a" slideway pivotally connected to said frame" and movable into position to budgethe'space between apart: of said cutter head and the forward end of said con veyor, and-means separate and independent from said cutter head over said slide way onto said co-nceyer.

10. In a miningmachine. the combination head over said slide onto said conveyor mechanism;

111 In. a" ininingunachiiie, the" combination Withia supportingirame', ofconveyer mechamoii'ntedf thereon, a cutter head, a bridge in sliding engagement with said cutterh'ead, means for supporting said outter head on said frame for 'movement relatively to said bridge, and means for raising materiallto discharge the samerearwardly over said'bridge onto saidconveyer mecha nism.

12, In a mining 'ancl loadingmachine, the combination with a supporting frame, of conveyer mechanism thereon, a drum moire ed on' the forward end of said supporting; fian'ie for partial rotation on a horizontal axis, core-cutting mechanism: mounted on said drumand having an unobstructed core opening therethrough, and means mounted to l'i'a've a swinging movement on substantially'the same axis as said barrel frame to ather the dislodged material and discharge 0 same rearwardly over the top of said d'ruin onto said c'on'v'ey'er mechanism.

13. In mining'machine, a frame, conveyorme'cl'ianismoarriedby saidframe, a rocutter, head carried by said frame, loop'cuttercarriedby said cutter head and havihg;anunobstructed core opening theret'lirough and movable about a horizontal o Sever coal from its native bed, and

axis t I m'ea movable about the axis of said loop l 'tter' to refce'ivethe severed material, raise 1tfi11to a positi n. above a part of said cutter head and discharge it rearwardly from said ctit'ter head onto said conveyor mechanism. ll lbI lfaim lIll iIg machine, a frame, a conv'e o carr fd by' said.. fi'fame, a rotary cutter carried by said frame, a chute mounted has ' from sa'i'd slideway fo'r'discharg'ing material for di'schargiiig material from said cutter on said frame to bridge the space between the upper portion of said cutter head and said conveyor, a cutter for severing materr from its native bed, and hopper for receiving said material and arranged to swing; upwardly about a horizontal pivot independ ently of movement of said cutter head to discharge said material rearwardly over the top of said cutter head onto said chute.

155. In a mi n'iuchine, a frame, a c'* veyor carried by said frame, a rotary'cu head mounted on 'l e forward frame, a chute pi frame and arranged to bi" tween the forward end of said con eyor tion of said cutter head, a loop cutter cu tried by said cutter head for Sti fUl'llih' material from its native bed, a hopper shaped to cor.- torm to the severed material and movabl into position to receive low ortion the space r [he said material during the cutting operation said cutter, and means for swinging said hopper upwardly about the axis of said out-- ter independen y of movement of ter head to raise the severed mater: 1 above said cutter bead and to discharge said material through the opening" formed by said cutter onto said chute.

16. In a mining in chine, the combination with a supporting Lame. oita cutterhead carried by said frame, a hopper rotatable into position for discharging i'z'iaterialrearwardly there-lam. and a chute pivota mounted on said frame in position to be the path of movement of said hopoer and to be tilted thereby to a greater angle of elemounted on sair. cutter head and arranged to rotate about the pivotal center of said cutter and to discharge material severed by said cutter rearwardly over said cutter head onto said chute. and means for swinging: aid hopoer into a oosition normally artially occupied by said chute.

19; In a mining; machine, the combination with a supporting; frame. of cutting: mechanism comprising a rotary axle carried by 1 said frame, a sleeve rotatably mounted on the ex rior of said axle. and a device carriediby said sleeve for cemoving the material severed hy said cutting; mechanism.

20. In a mining machine, the combination with supporting frame, of an axle mounted for rotation in said frame, a cutter carried by said axle, means for operating said outter including arcuate feed movement thereof and arcuate movement of said axle, a cylindrical. sleeve pivotally mounted on said axle and sm'rounding the same, said sleeve extending substantially the fulllength of said axle, and a hopper carried by said sleeve for movement independently of the movement of said axle in position to receive the materialsevered by said cutter. 1

21. In a mining machine, a frame having two side members, a hollow axle journalled in said side members, a cutter carried by said axle mechanism mounted within said axle for operating said cutter, a sleeve surrounding said axle, means carried by said sleeve for moving the material severed by said out ter, and mechanism located within said axle for rotating said sleeve relative thereto.

22. In a mining machine, a frame, a hollow axle journaled for rotation in said frame, a cutter carried by said. axle, mechanism located within said axle for rotating said axle and said cutter and adapted to hold said cutter to prevent rotary movement thereon, a device rotatably mounted on said axle for moving the material severed by said cutter,

and means within said axle for rotating said last mentioned device relative thereto.

23. In a mining machine, a frame, a hollow axle rotatably mounted in said frame, a cutter carried by said axle, a hollow sleeve journaled on said axle, a material moving device carried by said sleeve, and independently operable motors mounted within said axle for rotating said axle and said sleeve independently of one another.

24.. In a mining machine, a frame, a hol low axle rotatably mounted in said frame, a Ushaped cutter bar carried by said. axle, an endless cutter mounted on said cutter bar, a sleeve journaled' on said axle, a hopper carried by said sleeve having its walls movable into a kerf formed by saidcutter, and means mounted within said axle for rotating said sleeve and hopper to cause said hopper to transfer material severed by said cutter to.

worm. gear by which said axle is held fromv rotation other than by said motor, means rotatable about said axle for movingmaterial severed by said cutter, and mechanism mountedwithin said axle for rotating said material-moving means relative to said axle.

26. In a mining machine, a frame, a hollow axle journaledin said frame, a sleeve concentric with. said axle and journaled thereon, a cutter carried by said axle, means carried by said sleeve for moving material severed by said cutter, and mechanism mounted within said axle for rotating said sleeve and axle about their common axis independently of one another.

27. In a mining machine, a frame, a hollow axle rotatably mounted in said frame, a cutter carried by said axle, a stationary gear concentric with said axle, a pinion carried by said axle ecoentrically thereof and arranged to mesh with said gear, a motor operatively connected with said pinion through a chain of gearing arranged to drive in one direction only, a sleeve journaled on said axle, a' device for moving material severed by said cutter carried by said sleeve, and a second motor mounted Within said axle for rotating said sleeve relative thereto.

28. In a mining machine, an axle, a cutter carried by said axle, means for rotating said cutter and axle, a device rotatable relative to said axle for receiving material severed by said cutter, and a train of gearing connecting said axle and materialer'eceiving device and arranged to be driven by relative movement of said axle and device, and to thus offer resistance to such relative movement whereby the rotation of said axle will tend to rotate said material-receiving device simultaneously therewith.

29. In amining machine,'a rotary cutter for severing material to be mined, a device movable relative to said, cutter for-receiving said material, and yielding mechanism tend-ing to rotate said receiving device with said cutter whereby said receiving device is held stationary in operative position during the rotation of said cutter and ready to move when said cutter has completed its out.

"'30. In a mining machine, a rotary cutter, a device for receiving material severedby said cutter, and a train of gearing arranged to be driven by relative movement of said receiving device and cutter whereby the inertia and resistance of said gearing will oppose such relative movement and cause said receiving device to be yieldingly held in operative position during the rotation of said cutter.

31. In a mining machine, a cutter, a device for receivingmaterial severed by said cutter, a train of gearing arranged to be driven by relative movement of said outter and material-receiving device whereby they inertia and resistance of said gearing will tend to prevent such relative movement and to hold said receiving device in operating position duringv the rotation of said cutter, and a motor for drivingsaid gearing to cause said material-receiving device to move the material. severed by said cutter into position from which it may be transported. i

32. In a mining machine, a. frame, a sleeve journaledfor rotation insaid frame, a hopper carriedby said sleeve, and means; located within saidsleeve for, rotating .thelatter and the hopperto move material received th reby.

upwardly into position tov be discharged, rearwardly over said sleeve.

3.3:. In. aminingmachine, a frame, a sleeve journaled for, rotationin. said frame, ahoppercarried bynsaid. sleevecomprising a rear wall arranged. tangentially to said, sleeve, atone edgethereof, a front wall concentric with said sleeyeand meetingsaidrear ,wall at the edge thereof-opposite that which is tangentto said sleeve, and arms normal to said. sleeve and arranged to form endwalls.v for saidhopper.

34;..In a, mining, machine, the combina; tion with a, supporting-frame, of anaxle, journaledion. saidv frame, a, hopper carried, by, said axle, and, rotatable therewith, and means. carried wholly bywsaidaxle for mow ingitself andsaid hopper in anarc relatively. tosaid. supporting frame to.,1nove, a loadin said, hopper to discharging, position,

35 111, a mining machine, a framma cutter, rotatably mounted on; said fram for forming an, arcuatecut, inv the material to bemined, and, a, hopper rotatable in said frame: about the axis of, rotation of said cutter independently-of movement of said cutter bodilyand, having, anenterior wall curred to ,conform,,to the curyature of said am ate t an hav an,v nte or wall e e ding r nefi sa f: he xter o Wa l. o. a point diaeent he isnt r tation f said cutter. andhoppen 1 mining machine-,7, a. e e r, forming anarcuatecut in the material to be, mined to sever a core of saidmaterial, from its native bed, mechanism for afterward ai ins ai v m er al upwardly e h p s on. ccupie n ts. at ve d o positi om h ch t; b anspo ed and, means for enclosing said severed ma terial during said operation.

3. In a mining: la hinetlwcombin t o h ks r utti g me han m, f. mean f r p ating h ameinc di s e d n m a is he e i a. opperounted r nQ ment independently of the feeding moyement he kerfr t na mechanism nd h in Walls o ming. a Pocket. ar ang d t nt ke i onmed by. aid. ker ut nla m c an m, o en l se th material. uring h c nt uanc f, ese w n op r on and g a d v carried; y ai k rf'cut'tins e an sm d; laansedf o,cooper te W tlr h al f. i ornet, to; enclos he mat r al t t de du ing e comple ion ei her-f d n m r meat f said uttin mechan sm.-

In. a mi l ng: machines Q te head .091 re tte arrie by said hea an rota ab e hs ze i iq f m, an ar uat re. ofmined'material, a hopper having a closed .v bot om nd a l hanei o conform o th material severed by said cutter, means for moving the walls of said hopper into the kerf formed by said cutter whereby a portion of the material severed by said cutter is enclosed in said hopper, and guards car ried by, said cutter arranged to co-operate with said hopper for enclosing the entire section of material severed by said cutter.

39. In a mining machine, a cutter, means for receiving the material severed by said cutter, mechanism operated upon feeding movement of said cutter for yieldingly holding said material-receiving'means in operatiyeposition during such feeding movement of said cutter, and a supplemental device for positively holding said material-receiving means insaid position.

40, In a mining machine, a core cutter, a hopper; for receiving the material directly from the position thereof as left by said outter, and a stop movable into operative relation with said hopper to hold said hopper in material-receiving position.

41, In a mining machine, a cutter. a hopper for receiving material severed by said cutter, guards carried by said cutter and arranged to overlap the sides of' said hopper and to co-operate with said hopper to enclose the material severed by said cutter, and means for swinging said hopper upwardly between said guards for discharging said material.

42. Inca mining machine, the combination with a supporting frame, of, a supplemental framepivotally connected to said supporting frame at the rear end of the latter, an arouate sliding connection between said supplemental frame and the forward end of said supporting frame, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of. said supplemental frame for up and down movement on a horizontal axis, means for operating said core-cutting mechanism including feedthereof upwardly on such horizontal axis, and loading apparatus mounted on said supplemental frame in association with said core-cutting mechanism for taking the material out by said core-cutting mechanism and moving such material automatically toward loading position rearwardly of said supporting frame, said loading apparatus comprising an endless conveyer extending longitudinally of said supplemental frame with its forward portion movable laterally with said core-cutting mechanism and withits rear end maintained in substantially the same position at all times during the operation of the machine to deliver the dislodged material to a mine car on a track back of the machine.

48. In a mining and loading machine, the combination with a, supporting frame, of a supplemental frame pivotally connected to the, rear end of said supporting frame and operation fron'i the forward portion of said supplemental frame toward the rear end thereof, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of said supplemental frame for up and down movement on substantially lid" means for operatig said co c in Mechanism including upward feed th on such horizontal axis, and. means etc-acting with said core-cutting mechanism to deliver dislodged ma erial to said endless conveyer in the vari us positions of lateral adjustment of said supplemental frame relative to said supporting frame while the rear end of said conveyor remains in substantially the same position for delivering dislodged material to amine car on a track back of said supporting frame,

44. In a mining and loadin machine, the combination with a base frame, of a supplemental. frame pivotally connected to said base frame and mounted thereon, an endless conveyer extending longitudinally of said supplemental frame and having a discharge position near the pivotal connection between said supplemental frame and said base frame, a pivotal support between said supplemental frame and said base frame to en able said supplemental frame to be adjusted tovarious angular positions relative to said base frame, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of said supplemental frame for feeding movement on a substantially horizontal axis, means for operating said core-cutting i'nechanism including upward feed thereof on such horiuontal axis, and. apparatus for gathering the dislodged material in advance of said supplemental frame and delivering it to said conveyer for transfer toward leading position. A 415. In a mining and loading machine, the combination with a main frame, of a supplemental frame pivotallyconnected to said main frame and mounted on the latter for lateral movement relatively thereto, conveyor .snechanism entirely mechanical for transporting dislodged material from the front portion of said supplemental frame to a discharge position near its pivotal. connection with said frame, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of said supplemental frame, apparatus also vmounted onthe forward end of said supplemental frame for gathering cut material and delivering it to the forward end of said transporting means, and means for moving said supplemental frame laterally about its pivotal connection on said main frame to adjust the position of said gathering apparatus in an are relatively to said main frame.

l6. In a mining and loading machine, the combination witha supporting frame, of a supplemental frame pivotally connected to the rear portion of said supporting frame, a conveyer extending longitudinally of said supplemental frame and movable as to its forwardportion laterally with said supplemental frame along an arc with said pivotal connection as a center, core-cutting mechanism having an unobstructed core-opening therethrough and mounted on the forward portion of said supplemental frame, and means associated with said core-cutting mechanism for taking the dislodged material from its out position and delivering it to said conveyor.

$7. In a mining and loading machine, the combination with a main frame, of an elongated supplemental frame pivotally, connected to said main frame, means for supportingthe forward portion of said supplemental frame for adjustment in an are on said pivotal connection as a center, means for moving said supplemental frame laterally on said supporting means about said pivotal connection, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward portion of said supplemental frame, and loading apparatus for removing the dislodged material from the mine wall and delivering it to a discharge position near said pivotal connection.

4.8. In a mining and loading machine, the combination with amain supporting frame, of a supplemental frame mounted thereon,a pivotal connection between the rear portion of said supplemental frame and the rear portion of said main frame, a slide way on the forward portion of said main frame for supporting said supplemental frame for adjustment in an are about said pivotal connection as a center, rack and pinion mechanism for moving said supplemental frame on said slideway, a motor for operating said rack and pinion mechanism, core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of said supplemental frame for feeding movement relatively thereto, and loading apparatus mounted on said supplemental frame to move bodily in an arc therewith and comprising an endless traveling conveyer extending longitudinally of said supplemental frame to discharge position near said pivotal connection.

49. In a mining and loading machine, the combination with an elongated frame, of core-cutting mechanism having an unobstructed core opening therethrough and mounted on the forward end of. said frame 130 for feeding movement relatively thereto, a pivotal. support near the other end of said frame, an endless traveling conveyer ex tending longitudinally of said frame and arranged to transfer material rearward'ly along said frame, a slideway curved about said-pivotal Support as a center for supporting the endof said frame opposite said pivotal support, motor and gearing for moving said frame on said slideway about said pivotal support to bring said core-cutting 'mechanism into various operating 0- sit-ions ina mine chamber, and means associated with Said core-cutting mechanism for gathering the cut material and directing it onto said-conveyer.

50. In a mining machine, an elongated frame, a pivotal support for one end of said frame, a conveyor extending longitudinally of, said frame, a cutter carried by said frame at the end thereof opposite said pivotal support, a hopper movable independently of bodily movement of said cutter arranged to co-operate with said cutter and to raise the material severed thereby upwardly and discharge it rearwardly onto said conveyer, and a slideway for supporting the end of said frame carrying said cutter and arranged to permit lateral movement of said frame about said pivotal Support to bring said cutter into different operating positions.

51. In a mining machine, the combination with asupporting frame, of means for transferring material, from one location to another, said transferring means being mount ed on a horizontal axis in fixed relation to said supporting frame, a chute pivotally connected to said supporting frame on a horizontal axis in fixed relation to said frame, said chute having a sliding engagement at the free end thereof with said transferring means, and means mounted on said supporting frame in fixed relation thereto for receiving material from said chute.

52. In a mining machine, the combination with a supporting frame, of means for lifting material to a predetermined position, said lifting means being pivoted to said supporting frame in fixed relation thereto, a device for scraping material from Said lifting means when the latter reaches said predetermined position, said scraping device being. pivoted to said supporting frame on an axis in fixed relation thereto, and a conveyermounted on said frame in fixed relation thereto in position for receiving material from said scraping device and transferring such material to loading position. I

53. In a mining machine, the combination with a supporting frame, of'a scoop pivotally mounted thereon a substantially horizontal axis, a device pivotally mounted on said supporting frame on a substantially horizontal axis in fixed relation to said frame and in position for engaging a wall of said scoop to scrape material therefrom when said scoop reaches a predetermined position, and means for operating said scoop to gather material and deliver the same to said scraping device, said scraping device being then in posi on to direct material from said scoop toward loading position.

5-1. in a mining machine, the combination with a scoop having a curved portion near the axis of rotation and a wall extending outwardly therefrom, of a conveyor, and mechanism intermediate said conveyor and said scoop engaging the curved portion of said scoop until the latter reaches a predetermined position and then scrape the ma terial from sa'd wall of said scoop.

55. in a. mining machine, the combination with a scoopsomewhat Eishaped in cross section, of means for operating said scoop, and a device engaging an intermediate portion of said scoop to direct material therefrom when said scoop reaches unloading position.

56. in a mining machine, the combination with a supporting frame, of hopper pivotally connected on a transverse axis for movement in advance of said frame, and an abutment pivotally connected to the lower forward end of said frame independently of said hopper by being disconnected therefrom but adapted to be moved into position for engaging the lower rear end of said hopper to hold the latter in predetermined position.

57. in a mining machine, the combination with supporting framework of a hopper having side walls, telescoping extensions for said side walls, means for moving said extensions relatively to said hopper to effect lengthening of the walls, and means for moving said hopper relatively to said extensions.

58. in a mining and loading machine. the combination with a supporting frame, of core-cutting mechanism having an unobstructed core opening therethrough mounted on said supporting frame for feeding movement relatively thereto on a substantially horizontal axis, a device connected to said frame in position to receive dislodged material from said core-cutting mechanism, and means for moving said receiving device to discharging position independently of move- ,ent of said core-cutting mechanism.

in a mining machine, the combination with a supporting frame, of a scoop pivotally mounted on the forward end of said frame, means for operating said scoop to: gather material in advance of said frame and lift it for discharge rearwardly from said scoop, and a chutepivoted to said sup porting frame and extending to a position for receiving the material from said scoop.

60. In a mining machine, the combination with a supporting frame, of a scoop pivoted thereto, means for operating said scoop to said frame and having a fixed relation to the pivotal axis of said scoop and bei g perinanently in parallelism with the L axis, the forward free end of said chute be ing supported in position to 1' ceive material directly from said scoop terial slides out of the rear end of such scoop,

61. In a mining machine, the combination with a scoop, of a frame for carrying the same, guard mechanism extending vertically to court with said scoop to prevent material from falling laterally from the side of said scoop, means for adjusting the upri ht position of said guard mechanism rela ive to said frame and relative to said scoop, and means for operating said scoop to gather material and discharge the same therefrom.

62. In a mining machine, the combination with a supporting frame, of scoop pivoted thereto, a guard plate extending upward from one side of said scoop directly above .the latter, means for adjusting the upright position of said guard plate, and means ior 7 operating said scoop to' gather material and discharge the same therefrom. I

63, In a mining machine the combination with a supporting frame, ora scoop mounted thereon, upright gui l mechanism extending upwardly above the walls of said scoop for preventing material from spilling from said scoop, means for adjustahly holding said guard mechanism in upright position relative to said and means for operating said scoop. a

64. In a mining machine, the combination with a supporting frame, of a scoop pivoted to the forward end thereof, spaced-apart guard plates closely associated with the sides of the scoop and extending upwardly from the outer lateral surfaces such scoop sides, means for moving the said guard plates upwardly beyond the initial position of said scoop and holding said guard plates stationary relativel to said frame, and means for operating said scoop to gather a load in advance of said frame and move said load upwardly between said guard plates for discharge rearwardly between the upright planes of said. guard plates onto said frame.

65. In a mining machine, the combination with a supporting frame, of conveyer mechanism mounted on said frame, corecuttin; mechanism having an unobstructed coreopening therethrough and pivotallyi nounted on said frame to swing on a substantially horizontalaxis, and means also pivotally mounted on said frame in position to receive the severed material and raise it to a positionabove the said axis of said corecutting mechanism and discharge said ma- 0 amed terial from said receiving means onto s conveyor mechanism.

66. in. mining machine, the combination with a supporting frame, of a chute pivotally mounted on said frame on an having a fixed relation to said frame, a scoop pivotally connected to said frame on an axis having a relation to said frame and in parallelism with the axis of said chute andspaced from the chute axis, and means for operating said scoop to gather material and discharge it rearwardly onto said chu e 67. in a mining machine, the coinhinat' with a supporting frame, of a chute n'iounted thereon for movement r latively thereto, scoop mounted on said. frame pivotal movement relatively thereto on an axis liar ing a fixed, relation to said frame, and means for operating said scoop to gather material and discharge it out of the rear end thereof by permitting such material to slide by gravity from said scoop onto said chute while said scoop lifts th forward end of said receiving chute but maintains delivery relation with said chute.

68. in a mining machine, the con'ibination with a supporting frame, of scoop pivoted at the forward end of said frame, chute mounted. on said frame to have a sliding engagement at its forward free end with there-or wall of said scoop, means for opersaid scoop, to gather material in advance of said frame and discharge it rearwardly to said chute irrespective of the elethe mate 'al from said chute and transferring such material toward loading position.

69. n a mining machine, the combination with'a supporting frame, of scoop pivoted at the forward end of said frame and having a curved extension near the pivotal axis of said scoop, a chute pivoted to said frame and having its forward free e' d in scraping relation to the curved extension of said scoop, means for operating said scoop for gathering material in advance of said frame and delivering it to such chute out of the rear end of said scoop near such curved extension and while the forward free end of said chute remains inscraping relation with said scoop ex vnion, and a conveyor mounted on said ""ame in position for r ceiving the material from said chute and transferring such material toward. loading position at the rear end of frame. 7

70. In a mining machine, the combination with a supporting frame, of a scoop pivoted at the forward end of said rame, a chute pivoted to said frame at its upper portion and having a free forward end for engaging a wall of said scoop to scrape material there from when said scoop reaches a 'predeten mined elevation, the forward end of said chute resting on the scoop by gravity, and

osta ial aline -:iehver -J of the in chute *pted to i, track back oi said emental frame p'rotally r-ar end of said main supplemowing;

e ear met r carried Within the i -chain-core cutting m chanism having; an unobstructed core-opening therethrough and connected to the inner drum to more in an arc therewith on the axis of rotation of seid inner drum, power transmission mechanism connected to said motor for actuating said core-cutting mechanism, additional power transmission mechanism connected to said gear for effooting the feed of said core-cutting niechanism by moving such inner dr or in an are relatively to said spaced-apart lates, a hop per comprising spacedort side Walls, a forward curved well adapted to enter the l: back of the core, a rear Wall extending to the outer drum, an additional motor Within said inner drunn power transmission m chenism between said additional motor and said outer drum for rotating said outer drum relatively to said inner drum to move said hopper from its lower receiv'ng position at the floor of mine chamber to its upper d scharging position near the roof of the e chamber, an endless CO1 veyor extending: longitudinally 01" said supplemental tram-e from a forward receiving position to an unloading; position at the rear end of said supplen'iental frame, and a chute pivoted at rear end to said supplemental -frame near the forward portion of said conveyor and having its forward end movable freely up and down to correspond With the elevation of the outer drum and rear Wall of said hopper to remain inscraping relation with the rear wall of the hopper when the material is discharged from said hopper through said core-cutting mechanism along said chute onto said conveyor for transfer to a mine car.

72. In a mining and loading machine, the combination with a main frame, 01" a supple.- mental frame mounted on said main frame for lateral movement of the forward por- 1. car, l on the forward end of nine for pivotal movernent on subs t ially horizontl axis housing adjacent such axis, (tus for said core-outing D o t nwsm- M lileciiiillihlll nit/UK SzllCl supplement comprising r actuating echan'ism enrol frame, means ting said hopp r to move the core tdlldl u c M11 i iny and reanvai-ely said last-named means comprising adonal power transu issicn gearing enclosed oy saic housing, an endless conveyor one longi r' rally oi said supplements :i 'ieans for directing material hopper onto said conveyor when s or moves said core upwardly and reaiurardly.

78. In a inining and loading machine, the combination with coreutti g; mechanism of a fro Me for supporting said core-cutting mechanism for feeding movement on a substantially horizontal axis means for operating sa'd core-cutting mechanism including feeding movement thereof on such axis, said operating means comprising mechanism for locking; the core-cutting mechanism against oodily movement rel irely to said frame when the operation of said operating means is discontinued, a core scoop pivotally mounted on said frame for movement on said axis independently of feeding movement of said core-cutting mechanism, an additional operating mechanism for moving said scoop upwa While said corecutting mechanism is loclred against bodily movement, to remove the core from its native position through said core-cutting mechanism and conveyor mechanism mounted l ngitudinally of said frame for receiving the material of the core and conveyii the same to loading position.

F t. In a minin inacl e the combination -with an elon ated tr e oi a sectional clnte mount y the forward section bm tal movement on a the rear section of said chute for receiving core-cutting operating apparatus being kwl