US1664128A - mobgan - Google Patents

Description

March 27, 1928.

. C. MORGAN MINING AND LOADING MACHINE 4 Sheets-Sheet 1 Snom/woz 4 Sheets-Sheet 2 5mm/nto?,

Y-dM- E C MORGAN MINING AND LOADING MACHINE riginal Filed Oct. 24 1921 March 27, 1928.

March 27, 1928.

E. C. MORGAN MINING AND LOADING MACHINE Original F'ledOG'c. 24, 1921 4 Sheets-Sheet 5 March 27, 1928.,

E.. C. MORGAN HINING AND LOADING MACHINE Qriginal Filed oct. 24 1921 4 Sheets-Sheet 4 lll/11111,' 'I l Patented Mar. 27, 1928.

UNITED STATESPATENT OFFICE.

EDMUND C. MORGAN, OF NEW YORK, N. Y.; OLIVE EUGENIE MORGAN EXECUTBIX OF SAID EDMUND C. MORGAN, DECEASED.

`MINING AND LOADING MACHINE.

Application led October 24, 19271, Serial No. 509,979. Renewed November 25, 1927.

My invention relates to mining and load ing machines, and one of its objects 1s the provisiony of improved and eflicient mecha nism for dislodging coal from mine veins and transferring the dislodged coal to loading position.

A further object of the invention 1s V.the provision of improved feeding mechanism particularly adapted to a continuously forward moving dislodging mechanism having an arcuate path of travel along an upright mine wall.

Another object of the invention is the provision of arc wall dislodging mechanism and improved anchoring apparatus combined therewith.

A further object of the invention is the provision of a joint between the arc wall dislodging mechanism and the main frame of the machine to enable such arc wall dislodging mechanism to operate along the side walls of the mine chamber.`

A further object of the invention is the provision of a` hydraulic system of anchor V mg the wall jacks for controlling the posi tion of the mining machine during the op eration of the arc wall dislodging mecha nism.

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

Referring to the accompanying drawings,

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

Fig. 2 is a longitudinal sectional elevation of the Vmining and loading machine shown in Fig. l;

Fig. 3 is a plan view of the mining and loading machine;

Fig. B is a sectional elevation on the line 3"-3" of Fig. 3,-1ooking in the direction of the arrows;

Fig. 4 is an end elevational view of the dislodging tools shown at the right hand end of Fig. 3;

Fig. 5 is a sectional elevation on the line 5-5 of Fig. 2, looking in the direction of the arrows;

Fig. 6 is a diagrammatic plan view to illustrate the various` positions of the dislodging mechanism as permitted by the joint between the latter and the frame on which the motor is mounted; and

Fig.A 7 is a diagrammatic illustration of the hydraulic system for operating the various hydraulic devices including the anchoring and wall jacks.

In Fig. 2 a main frame 8 is shown as su porting the operating motor 9. The main frame 10 of this motor may be secured to the frame 8 and the rear frame 11 as shown in Fig. 1, so that in reality the motor frame and the rear frame 11 are rigidly connected to the main frame 8 and become a part j thereof.

Extending forwardly from the main frame 8 is an extension 8, as shown in Fig. 2. Mounted on this extension 8 is a casting 12, the latter having arcuate movement on an upright axis relatively to the extension 8. By referring to Fig. 3 it will be seen that the casting 12 is provided with a plurality of vertical openings 13, through which bolts 14 may be inserted and fitted into recesses in the frame 8, so that when the casting 12 is adjusted in position it may be held rigidly against the frame 8 against turning on the upright` axis. In addition to the vertical bolts 14, radial bolts 15 may also be provided for insertion into radial recesses 16, as shown in Fig. 8, so as to firmly lock the casting l2 to the frame 8 when relative adjustment has been secured. The radial bolts 15, however, are extended through the frame 8 into recesses in the rearward portion 17 of the base frame 18, as shown in Figs. 1 and 3.

Secured to the base frame 18 is a casting 19 as shown in Fig. 2, which affords a bearing at 2O for the vertical shaft 21, which has nkeyed thereto the gear 22 rotatably mounted in the frame extension 8.

The motor shaft 23 is provided with a pinion 24, which meshes with the spur gear 25, Iand secured to the latter is a bevel gear 26 meshing with the horizontal bevel gear 27. The latter is keyed to the vertical shaft 28 underl the cap plate 29. Keyed to the vertical shaft 28 is a spur gear 30, which meshes with another spur gear 31 on the vertical shaft 32, and the gear 31 meshes with the gear 22.

It will thus be seen that upon the operation ofthe motor 9, power may be transmitted at reduced speed to the vertical shaft 21.

The base frame 18 is provided at its up- 34. Extending radially from this hub is an arm 35, on the outer end of which is secured the dislodging mechanism `shown i-n Figs. 1, 3 and 4 Itis preferred that this dislodging mechanism vbe detachable from the arm 35 by means of the bolts shown at 36, 37 and 38 in Figs. 1, 3 and 4. The dislodging mechanism shown in Figs. 1, 3 and 4 preferably .consists of a frame 39, to which are rigidly connected "the spaced-apart digging and splitting tools 40 and 41 for efecting dislodgment of the larger masses of coal from the mine wall. Between the tools 4Q and 41 are additional small tools 42 for trimming the irregularities of the surface leftby the larger tools. In a similar manjner: the loor'tools 43 may be provided for trimming the floor so as to have an approxi- Vmately flat surface. While the tool 41 may be adjusted so as to move along the floor of the mine chamberand the tool y40 extend- ,ed forwardly beyond the tool 41 as shownfin 'Fig .4, `the uppermost dislodging tool 44 is lWay 50, as shown in Fig. 4. On the guide 49 are auxiliary Scrapers 51 for trimming off the mine wall between the large dislodging tools 40 and 44. After the arm 45 has been moved on .the pivot 46 so as to adjust the elevationV of the dislodging. tool 44, the arm 45 may be clamped tothe brackets 47 .and .48. by means of the bolt 52 and nut 53, as shown in Figs. 1 and 3.

VI I'ydraulic vmechanism may also be providedv for shifting the position of the arm 45 relatively to the frame 39 and locking the arm in adjusted position. By referring to Fig. 4 it will ,be'seen that a link 54 pivotally connects the arm 45 to the upper end of the plunger rod 55, to which is connected the `piston 56 movable in the hydraulic cylinder 57.. The mechanism for controlling this `hydraulic mechanism for adjusting the position of the arm 45 is shown in 7 and will be morefully hereinafter described.

Pivotally connected to the arm .45 is a roof scraper comprising the plate 58 and .the scraping tools 59, as shown in Figs. 1, 3 and 4. The roof scraper may be secured in adjusted position by means of xthe bolt .60, as shown in Figs. 1 and 3.

The feeding mechanism for securin arcuate movement of the dislodging mec anism on the upright axis of .the cylindrical bearing 33 comprises an oscillating ring plate 61 land ratchet mechanism operated thereby. Fitted on the upper circular extension 62 of its reai- .end provided with a very strong bearing 68 to resist the back thrust onfthe pawl67 during the feeding operation. The spring 69 constantly urges the pawl into engagement with the ratchet teeth, but Will yield suiiiciently to permit restoring the dislodging mechanism to initial position. WlVh'enthe arm 35 reachs the limit of its feeding movement it will engage with Ithe lever 70, which is pivoted at 71 so as to rotate the eccentric 72 and thereby push Vpin 7 3 against the pawl 67 and throw V1t out of engagement with the ratchet teeth 66, thus automatically' limiting the vfeeding movement of the dislodging mechanism.

In order to `operate. the pawl and ratchet ymechanism to effect feeding movement of the-.dislodging tools in an anti-clockwise direction as viewed in Fig. 3, mechanism` is connected between the shaft 21 and the plate 61 to oscillate the latter. At the upper `end of the shaft 21 is secured anv eccentric 74 mounted in a slide plate 75, which fits in the rectangular opening 76 in the plate 6,1, as shown in Fig; .3. When the motor 9 is operated to effect rotation of the shaft 21, the rotation of the eccentric 74 will canse the plate 75 to move laterally from side to side and also longitudinallyalong the rectangular opening ,76. `The sidewise movement of the plate 75 will cause the plate 61V to .oscillate and therefore the paWl 67 Will 'be moved in feedingdirection and retracted alternately, and in this manner a very powerful feeding movement is `transmitted to y the arm 35;to effect continuous arcuate forward movement ofthe dislodging tools 40,

.41 and 44.

The loading apparatus comprises a receiving conveyer having a chain 77 with Fig. l, so as to be able` to mesh with the sprocket Wheel 83, which is secured t0 the lower end of the vertical shaft 21. When material is scooped from the floor or is otherwise received bythe conveyer comprising the flights 78, the latter move this material to the receiving end 84 of the loading conveyer 85, which may kbe of the endless chain scraper type as shown in Figs. 3 and 3a. The'loading conveyer 85 may be supported on brackets 86 and 87 pivoted respectively at 88 and 89 to the main framework. As shown in Fig. 3, the bracket 86 may be provided with a toe 90 for engag-` ing the frame 8 to hold the bracket 86 in a substantially horizontal position. The bracket 87 may be provided with a similar limiting device.- It should be understood that the brackets 86 and 87 are movable so that the loading conveyer may be placed. in the position shown in dotted lines in Fig. 6 when the dislodging mechanism is swung to the right angle position shown in dotted lines in this view.

It should be noted that the conveyer frame 79 is semi-circular in plan view and pivoted to the sides of the base frame, as illustrated at 200 in Fig. 1. The bottom of the semicircular frame 79 is flat and the frame itself is comparatively thin so that the conveyer flights 78 will operate close'to the mine iioor. Theforward beveled edge 80 will therefore be free to movey along the floor so as to move under material on the floor which will hold the bottom of the conveyer frame 79 against the floor, particularly when the `Whole machine is moved forward by the rear jack 113. While the flights 78 are adapted to be operated so as to move scooped up material onto the receiving end 84 of the conveyer 85, such flights may be reversed when f be tilted up and down relatively to the frame 18 onthe pivot 200 without interfering with the operation of such flights. Furthermore, vthe guide groove 81 holds the chain down so that the flights 78 will move along the conveyer trough immediately back of the beveled surface 80.

When the apparatusv is in the position shown in Fig. 3 the loading conveyer may also receive support from the wall jack 91, but I prefer to provide the detachable horizontal brackets 86 and 87, so that the loading conveyer can be supported independently of the wall jack 91. f

After the dislodging mechanism has made a complete semi-circular feeding movement Vin an anti-clockwise direction as viewed in Fig. 3 andthe limit stop mechanism has discontinued further feeding automatically, the clutch 92 may be operated by means of the lever 93, which is detachably connected at 94 to the rock shaft 95 which extends entirely across the casting 17. By adding the squared projection 94 on both sides of the axis of the cylindrical bearing 33.

machine the lever 93 may be connected to the rod 95 from either side when the machine is in the position shown in Fig. 3. Vhen the machine is in the position shown in dotted lines in Fig. 6 the lever 93 may be applied to that side shown in Fig. 1.

The clutch element 92 is sphned to the depending shaft 96, which is secured to the shaft 21. lVlien the other clutch element 97 is engaged by the clutch element 92, power will be transmitted from the shaft 21 to the gear 98 which meshes with the gear 99. The latter is secured to the vertical shaft 100, which carries the gear 101 when the latter is in mesh with the gear 102. The latter gear is journaled on the cylindrical bearlng 103, which is mounted inthe castings 19 and 104. It should be understood that the cast- ings 12 and 19 are rigidly securedtogether by means of the bolt 105, and that the castings 104 and 17 are rigidly secured to the castings 19 and 12, so that these castings together with the base frame 18 become parte of the supplemental frame which is rotated bodily on the shaft 21 as a vertical axis. l/Jhen the gear 102 is rotated it effects rotation of the arm 35 by reason ofthe gear 10G which is in mesh with the gear 102.

For operation of the pawl andv ratchet mechanism it is preferred that the motor 10 be rotated so that the eccentric 74 will be moved anti-clockwise as viewed in Fig. 3, because then the plate 61 will be oscillated to move the pawl 67 in feeding direction when the eccentric 74 has the greater leverage relatively to the center of the upright When the eccentric 74 is rotated anti-clockwise as viewed in Figs. 2 and 3, the gear 106 will be rotated clockwise to effect the proper restoring movement to the dislodging mechamsm. f

After the main frame 8 and the supplemental frame 18 are moved to the desired position for operation of the dislodging mechanism, a hydraulic roof jack is operated to .secure anchoring of the frame 18. ln the cylindrical bearing 33 is located a large plunger 107 having a semi-spherical bottom as shown in Fig. 2. A gasket 108 may be placed at the upper inner portion of the cylinder Connected to the upper central portion of the plunger 107 in a semispherical recess is a semi-spherical support 109 for the shoe 110, which has upper hori- Zontal serrated surfaces 111.` It will thus be seen that when the plunger 107 is moved upwardly by hydraulic power the shoe 110 will engage the roof and by reason of the semispherical connection at 109 the shoe will vw automatically adjust .itself to irregularities of the surface of the roof. When the hydraulic jack is operated by hydraulic power the frame 18 with the castings 12, 19, 17

and 104 are securely anchoredin position .f

between the floor .and yroot Vof the mine chamber.

In yorder to resist any tendency which the machine Imay have to swerve out of its adjusted position duringthe operation of the l dislodgi'fng` mechanism, wall jacks are provlided such 'as those shown at y91, 112 and 113. The wall jack 112 is pivotally connected between the ears 115 in Fig. 8, but I'may be disconnected therefrom and conynected pivotally to ythe ears 116 when desired. In thesame manner the jack 113 may bepivetally connected to the ears 117 at one ic'ornerw'orf the rea-r frame 11 or to the ears 118 :at fthe rear end of the frame 11. In

.Fig. 3 thewa'lljack 112is shown in dotted Lfline'fp'ostion in engagement with one of the side walls,fbut-it should 4be understood that theout'erend of this hydraulic jack is provided Witha roof jack at 120.: In a similar manner a "hydraulic jack 113 is provided with aroof'jack 121. Each ot the jacks 91, 11-21andf113 comprises a cylinder with a pistontherein', this pistonbeing connected to a wall-.engagin'g shoe or a vertical root jack.

VVhen-the:wall jack 91 is in the'position jackv 112 `between the wall 122 and the Aears 116, Vthe forward portion of the machine .could imovedlaterally when the roof jackA "110 lis released. In a similar manner, when the wall 4jack 112'isin the dotted line position A11.9, .the machine may be moved away from the Wall 123. When the hydraulic jacks 112 and 113 are in the position shown in ifull lines in Fig. 3 and the root jacks 120 and 121 4are in anchored position, the hydraulic jacks 112iand 113'may be operated @to move the entiremachine forward to a new position While the jacks 91 and 110 are released.

'In Fig, 7 I have shown a hydraulic control system which may be'used in connection with the `machine shown in Figs. 1, 2 and 3. By vreferring to Fig. 2. it will be seen that at thelowerend of the shaft 28 is an eccentric cam 124 surrounded by a strap 125, which is connected with the plungerA 126 operating in cylinder 12701 a pump Jfor supplyi'ng liquid pressure through the pipe 128. A supply tank for the liquid is shown at 129 in Fig. 7. When the plunger 126 -moves to the right theL check valve 130 is opened to effect suction of the water through. the pipe 131 into the cylinder 127. V'When the plunger 1.26 is moved to the'left, the check valve 132 isautomatieally opened. and 'the check valve 130 closed. This will effect the Ydischarge ot' the liquid under pressure into the lpressure pipe 128 andthence throughV the-WML ous branch pipes 133, 134, 135, 136 yand 137 to the valves 138, 139, 140, 141 and 142, re-

spectively. There are also branch pipes 143 and 144 extended to the valves 1457md 146,

respectively. y

By operating the valves 141 aznd142 `the hydraulic motor for adjusting the position of the dislodging tool 44, shown in Fig. 4 may be operated. Vhen the valves 141 and 142 are in the position shown in Fig.`7', fthe liquid under pressure is .supplied through the pipe 187 to the cylinder 57 to move the piston 56 upwardly while the liquid above the piston56 is discharged through the pipe i 147 andthe valve 141 into `the pipe 148, "which in turn discharges into the 4exhaust pipe 149 connected to the bottom of the tank rat150.l lVhen the levers 151 vand 152 re y turned to such `positions that the liquidy Gam neither enter nor iow from thecylinder 57, the piston 56 will be locked in'adjustd position. By turning thelever 151 to the right ay quarter turn andthe lever 152 to thedeft `a quarter turn the liquid under pressure may be supplied through the' pipe 1361i0 the cylinder 57 above the piston 56, and `the liquid below the piston :56 may beV connected to the exhaust .pipe 149. In this mannerthe arm 45 may be moved in a downwarddirection.

Connected to the passageway 153: at the lower portion of the cylinder v33`1isa `'pipe 154 leading "to the valve`140. When` the 1ever 155 is in the position shown inFig.- 7

4the pipe 154is connected to the pipe 156 and tendency-oi` the shoe 110 to yield in en up ward direction will be immediatelyfollowed by the action of the accumulator lin maintaining 'the desired pressure below the plunger 107 to hold the roof jack 110 firmly 4in anchored position.` It should also be understood that when `the lever 155` is `l'frliorved to such a position that neither pipe 135 nor 156 is connected to Vthe'pip'e'154, the'plunger lll) 107 will be locked in andhored position.

Even then, however, the yaccxmiuletorV 157 will automatically move the plunger`107 upwardly a short distance withinthe .capacity of the accumulator, if the roof tends to ield slightly during the operation of the dis odging mechanism. I

When the valve 138 is in the position shown in Fig. 7 the Wall jack 91 may be operated to move the shoe 161 into contact With the Wall. 122, and by turning the lever 160 to the position shown in Fig. 7 the Wall jack 91 may be locked in adjusted position.

When the valve 145 is in the position shown in Fig. 7, liquid under pressure will be supplied to the pipe 143 and pipe 162 and thence to the cylinder of the hydraulic jack 113. The roof jack 121 is supplied with liquid pressure through the passageway 163 in the plunger 164, which is connected between t-he piston 165 and thecylinder 166. By turning the lever 167 to the right a quar ter turn the piston 165 may be moved to the right because at the same time the plunger 168 of the roof jack 121 will be released. Thus it will be seen that the roof jack Will be moved forwardly, and when the lever 167 is returned to the position shown in Fig. 7 the roof jack 121 will be anchored in its new position and that the frame to Which the ears 117 are connected will be moved forwardly.

In a similar manner, the valve 146 may be used to control the hydraulic jack 112 and the roof jack 120 to move the frame step-bystep for use as an abutment to eHect forward movement step-bystep of the frame to which the ears 115 are connected.

By referring to Fig. 1 it will be seen that the rear end of the machine is provided with an elevating jack 169 comprising a cylinder 170 and a plunger 171, as shown in Fig. 7. The upward and downward movement of this plunger' 171 maybe controlled by the valve 139, and by moving the lever 172 to valve-closing position t-he plunger 171 may be locked in adjusted position. In this manner the rear endof the machine may be adjusted in elevation, so as to in- Cline the forward path of the machine upwardly or downwardly or to a horizontal position.

lVhile I have shown the supply tank 129 diagrammatically in Fig. 7, I have shown in Fig. 5 compartments 173 and 174 forV containing the liquid, the intake pipe being indicated at 131', the pressure supply pipe at 128 and the exhaust pipe connected at 149.

`Bv comparing Figs. 2 and 5 it will be seen that a shaft 17 5 is mounted in journal bearings 176 and 177. The compartments 173 and 174 may be provided with cover plates 178 and 179.

In Fig. 6 is shown in dotted lines the Y ositions of the various parts when the islodging mechanism is adjusted on the vertical shaft 21 as an axis to occupy positions for dislodging material from the side Walls.

It should be understood that the dislodging mechanism may be in a similar manner turned in the opposite direction for operation on the opposite mine Wall. The conveyer 85 may be disconnected from thc hori- Zontal supports 86 and 87 and the latter disconnected from the machine so that the conveyer may occupy the dotted line position shown at 18() in Fig. 6. The jacks112 and 113 may be pivotally connected at 114 and 184` and 185. When the dislodging mechanism is adjusted for operation in its dotted line position indicated at 186 in Fig. 6 the bolts 14 are inserted in the openings 13 to lock the supplemental frame 18 against arcuate movement relatively to the main frame 8 on the upright axis 21. Furthermore, when the dislodging mechanism is operating in its dotted line position shown in Fig. 6, the roof jack 110 is relied upon to hold the supplemental frame 18 in anchored position While the main frame 8 is kept from swerving by a Wall jack or the hori- Zontal hydraulic jack connected to an anchored roofjack.

Obviously those skilled in the art may make various changes in the details and arrangements of parts Without departing from the spirit and scope of my invention as deiined by the claims hereto appended, and I Wish therefore not to be restricted to the precise construction herein disclosed.

Having fully described the invention and illustrated an embodiment thereof, what I desire to have secured by Letters Patent of the United States, is:

1. In a mining and loading machine, the combination With a main frame, of a conveyer having a forward semi-circular hinged frame to facilitate maintaining the receiving lip of the latter on the iioor,dislodging mechanism mounted on said main frame, and

a delivering conveyeriin position for receiving material from said first-named conveyer.V

2. In a mining and loading machine, the combination with a main frame, of a floor jack at the rear end thereof for adjusting the elevation of the latter, an endless flight conveyor comprising an arcuate receiving frame in scooping position at the floor and hinged to said frame to maintain such position when the elevation of the rear end of l pivoted saidfmainA frame is adjusted, and means mounted on said main frame for dislodging material from an upright mine wall into the path of said conveyer.

3. In a mining machine, the combination with, a ,main frame adapted to travel longitudinally along a mine chamber, of a supplemental frame, a joint between said supplemental frame and said main frame to permit lateral adjustment of said supplemental frame on the upright axis of said jointto positions extending `toward the side walls of the mine chamber, dislodging mechanism mounted on said ysupplemental i'ramemeans f" for locking said main and supplemental framesy in adjusted angular relation, and

means for operating said dislodging mechanism vto dislodgeV coal from a mine wall at the head of the mine chamber when said v:trames are in alinement and to dislodgecoal from the side walls when said supplemental:

frame is rextended laterally relative to said main frame ,4. In av min-ing machine, the combination with a main frame, of a supplemental frame pivoted thereto, dislodging mounted on saidsupplemental frame to move bodily therewith, a detachable ratchet ring connected to said supplemental frame, and means connected to said ratchet ring for moving; said supplemental frame continuously in the same direction to effect feeding of: said dislodging mechanism.

f5. In a mining machine, the combination With a main frame, of a supplemental frame thereto, -dislodging mechanism mounted on said supplemental :trame to move) bodily therewith, means comprising pawl and ratchet mechanisml for eifecting feeding of said dislodging mechanism, and

means; for automatically limiting the feed.

` of said: dislodging mechanism by rendering inoperative the pawl and. ratchet mechanism. .6'. In a mining machine, the combination with a supporting frame, of al supplemental `Zot a supplemental frame, dislodging mechanism'mounted on said supplemental frame to move bodily: therewith, means for moving said supplemental trame in one direction to feedl said dislodging mechanism, an automatic limit stop for said. dislodging mechanism, and means comprising gearing conneoted to said supplemental fra-me and controlled by'a manually operated clutch for quickly returning said supplemental frame mechanism l toinitial position to' restore said dislodging mechanism.

8. In a mining and loadingmachine, the` combination with a base frame havin i an upright standard, of a hub journale on said standard, a radial arm extending from said hub, dislodging mechanismmounted on` said radial arm to move bodily therewith,` means for moving said hub pivotally on Said,`

standard .to` effectfeeding vmovement of said dislodging mechanism, a eonveyer frame narrowl in. thickness and having a flat bottom. adaptedto reston the mine loor'i'n advance or' said base frame, a beveled periphery on the .forward edge ofgsaid conveyer frameat the minefloor, anda lightconveyer mount-f ed on saidl conveyerfframe adjacentthe floor backot said beveled periphery and in position to travel. around the-forwardportion of said base .traine 'under saldi, radialalm, the' space `between the beveled vperipheryandl theI Hight conveyer beingfree and, unobstrfuetelv to permit said beveled periphery to scoop material from the floor and direct itA onto said iiight conveyer.

combination `with a main frame, of asupplemental `frame mounted thereon to move arcuatelj7 relativelyv thereto on an upright axis, dislodging mechanism mounted on said supplemental frame to` move bodily therewith on` said upright axis, a conveyer frame connected tov said main frame ,for

yielding cont-act with the mine floor iii-advance of said main frame, a traveling conveyer. extending around the forward end of said main frame on said conveyor` frame along a semi-circular path concentric with said upright axis, and means for operating said dislodging vmechanism todislodge material into position to be received by said conveyer.

10. In a mining andiloading machine, the

combination with a mainframe, of a sup-V plemental frame` mounted thereon for swinging movement on an upright axis, dislodging mechanism mounted on said Supplemental frame to move therewith 0n said upright axis, `an arcuate conveyer frame having pivotal connectionsA with opposite` sides of said main frame and. adapted to yieldingly moveover the mine floor, a conveyer- 9. In a mining and loading machine, thev on said conveyery frame having la forward" arcuate path of travelaround the forward end of said mainframe, and a loading con-v veyer in positionto receive material from said; first-named conveyer. j

1l. In a mining and loadingmaclfiine, the combination with a main frame, ofmeans at the rear portion thereof for adjusting the elevation of the latter, a conveyer comprising a receiving frame in scooping position at the floor and pivoted to said frame to maintain such scooping position when the elevation of the rear end of said frame is ad izo,

Gil

,justed, and means mounted on said main frame for dislodging material into position to be received by said conveyer.

12. Ina mining machine, the combination with a main trame, of a supplemental trame pivoted thereto, dislodging mechanism mounted on said supplemental frame to move bodily therewith, means comprising pawl and ratchet mechanism for effecting feeding of said dislodging mechanism, means for automatically limiting the feed of said dislodging mechanism by rendering inoperative the pawl and ratchet mechanism, and means independent of said pawl and ratchet mechanism for restoring said dislodging mechanism to initial position.

13.` In a mining machine, the combination with a frame comprising a hydraulic cylinder, of a plunger in said cylindei, a root engaging-shoe on top of said plunger, means for controlling the flow of liquid into and out of said cylinder to control the application of said shoe to said roof, a hub journaled on saidpivot to move pivotally relatively to said frame, a radial arm extending from said hub, dislodging mechanism mounted on said radial arm to move bodily therewith, a ratchet connected to said hub, a pawl for engaging said ratchet means for for reciprocating said pawl to act on said ,ratchet to cause said frame .and said diswr lodging mechanism to move in feeding direction, means for automatically limiting the feed of said dislodging mechanism by i rendering inoperative the pawl and ratchet mechanism, and means independent of said pawl and ratchet mechanism for restoring said dislodging mechanism to initial position.

14. In a mining and loading machine, the combination with a main frame, `of dislodging mechanism mounted thereon,a conveyer having atorward semi-circular hinged frame to facilitate maintaining the receiving Alip of the latter on the floor, said conveyer having the rear portion thereof inclined upwardly from such semi-circular portion, and means for operating said con veyer for transferring toward loading position material dislodged by said dislodging mechanism.

15. Ina mining machine, the combination with` a main frame, of dislodging apparatus mounted thereon, a rootjack for said main frame, a wall jack for resisting twisting strains during the operation of. said disi lodging apparatus, a pivotal connection between said wall jack and the main trame for permitting swinging of said wall j aclr to a position lengthwise of the machine, and a roof jack abutment for said wall jack to act against when assisting in moving the machine forward.

16. In a mining machine, the combination with a main frame, of dislodging mechanism mine chamber,

mounted thereon, a plurality of horizontal jacks pivotally connected to said main trame to swing on upright axes,`additional upright jacks connected to the outer ends of the horizontal jacks to act as'abi'itments against which the horizontal jacks may act respectively, and an operating system for said jacks comprising means forindependently controlling the horizontal jacks.

17. In a mining machine, the combination with a main traine, of dislodging apparatus mounted thereon, mea-ns for anchoring said main trame to hold the saine stationary during the operation of said dislodging apparratus, a wall j ach for resisting twisting strains during the operation of said dislodging apparatus, a connection between said wall and the main frame 'for permitting adjustment of the wali jack to a position lengthwise ofV the machine, and a root jack to serve as an abutment :tor said wall jack to act against when assisting in moving the machine forward.

18. In a mining machine, the combination with a main trame, ot a supplemental frame connected thereto to extend inV advance thereof along a mine chamber and substantially parallel to the walls of the latter, a

joint between the main and supplemental iframes tor adjustment of the supplemental frame relative to said main trame on an upright axis, means for securing said frame against relative movement after being placed inrelatively adjusted position, amotor on said main frame, dislodging mechanism mounted on said supplemental trame in position to dislodge a crescent-shape mass of coal from jthe solid tace of a mine vein over an area extending trom thefloor to the root of the and power transmitting mechanism between said motor and said dislodging mechanism for operating the latter while said .supplemental frame is being held in adjusted position relative to said main iframe andrigidly connected to the latter.

19. In a mining machine, the combination with supporting framework, of dislodging mechanism mounted thereon comprising pointed wedging tools arranged in upright spaced-apart relation and adapted to move continuously forward during operation to penetrate the solid coal of the tace of the mine vein and by wedging action split large portions of the coal from such iace over a wide area between the fioor and roof, hydraulic mechanism for powerfully an choring said supporting framework to hold the saine stationary during the operation of said dislodging mechanism, means for Operating said dislodging mechanism by moving such tools continuously forward while said frame is anchored to cause such dislodging mechanism to dislodge the coal from its na tive bed in large pieces over such wide area llo of the ffaceof the mine vein, and means comprising ahydraulic motor mounted on said framework for operating said anchoring mechanism.

20. In a mining machine, the combination with supportingframework, of a hydraulic roof jack therefor, an accumulator connected to said roof jack and adapted to permit said roof jack to yield or expand in accord,- ance with sagging or yielding of the roof, means for controlling the operation of said roof jack, dislodging mechanism mounted on said supportingframework for feeding movement relatively4 thereto, and means for f operatingsaid dislodging mechanism while said roof jack anchors said supporting frame and whlle sald accumulator remains connected: to said roofjjack to take up variations Y in the roof during the operationl of said disframe and an uprightl shaft at said upright axis for operating said dislodging mechanism while said main andl supplemental frames are rigidly connected together in such adjusted relation.

22. In a mining machine, the combination with, supportingy framework, of ahydraulic roof jack therefor, means for controllingl said roof jack, an accumulator connected directly to said roof jack, dislodging mechanism mounted on said supporting framework for feeding movement relatively thereto, andA means for operating said dislodging mechanism while said roof jack anchors said framework and while saidaccumulator compensates for variation in roof level at the roof jack.

23. In a mining machine, the combination with a main frame, of dislodging apparatus mountedl thereon, a horizontally extending wall jack pivotally connected to said main frame for movement to a positionY extending longitudinally of the machine, and an upright roof jack at the outer end of said wall jack to act as an abutment for the latter when in such longitudinal position and operated to move the machine forward.

24. In a mining machine for low roof mine chambers, thefcombination with a main frame, kof a supplemental frame having substantially the same height as said main frame and pivotally connected to said main frame for adjustment relative to the latter on an upright axis, means for securing said frames rigidly together in adjusted mgulalr relation toiprevent said supplemental frame j from being moved relatively-toi` said mainy frame, dislodging mechanism mounted `on said supplemental frame, and power `trans-l mission gearing comprising an upright shaft at said upright axis for operating said dis-- lodging mechanism ,while said frames are tively thereto in advance of said upr' htzf axis, andv means for operating saidl dislo g- I ing mechanism to dislodge material lineman` upright mine wall at the head:- of the mine chamber when said frames arein alinement vwithieach other and .to dislodge material from the upright side walls when` sadslrp.-

plemental frame is extended laterally relative to said main frame and both of said frames are resting on ,the mine floor.

26. In a mining and loading machine, Vthe combination with a main frame,'of a tra-veling' flight conveyor comprising-a frame and4 flights traveling along the latter in an arcuate path around the forward end of said main frame, means for yieldingly support- Y ingr said conveyor frame on said mam framefor yielding contact with the floorv inV ad4 vance of said mam frame when saldi mam conveyor is moved reotilinearly along them floor, means for impartingy a rectilinear movement vto said conveyor fto causeV itsV frame to scoop material from the floor whilein such yielding contact therewith and whilesaid flights travel arcuately along the con,-

veyor frame around theV forwardr elnilY of said t main frame, and means for drivingrsaid consaid flights. j Y,

27. Ina mining machine, the combination with a main frame adapted to occupy a sta.-

tionary position in a. mine chamber, of a..

supplemental frame pivotally connectedsto said main frame for adjustment' relative to ythe latter on an upright axis, means `for rigidly connecting said main and supplemental frames in adjusted angular relation relative to such upright axis, dislodging: mechanism mounted on said Vslipplemellttal frame for feeding movement on an upright axis spaced from the first-named upright axis, and means for operating said dislodg- Vveyor to impart such arcuate movement to` ing mechanism on its upright axis while said main andl supplemental frames remain stationary.

28. In a mining machine, the combination with supporting framework, of a radial'arm supported thereon for arcuate travel relatively thereto, dislodging mechanism comprising coal splitting tools adapted to be vadjusted along said radial arm, means for holding said dislodging mechanism in adjusted position relative to said arm to move bodily therewith, and means for moving said arm arcuately relativelyto said supporting framework to operate said dislodg-V ing mechanism.

29. In a mining machine, the combination with supporting framework, of a radial arm mounted on said framework for arcuate movement relatively thereto, dislodging `mechanism comprising splitting tools slidable along said arm for adjustment relative thereto,r means for holding said dislodging mechanism in adjusted position by rigidly connecting the same to said arm to nism, and means for swinging said arm on said upright axis to move said coal splitting mechanism therewith to operate the same along an upright mine wall. A

31. In a mining machine, the combination with a main frame, of a supplemental frame pivoted thereto on an upright axis for adjustment to positions in advance of said main frame and to either side of the forward end thereof dislodging mechanism mounted on said supplemental `frame and adjustable bodily therewith to positions in advance of the main frame and to eitherside of the forward end thereof, means for holding the supplemental frame together with the dislodging mechanism in adjusted position in advance ofthe main frame or to either side of the forward end thereof, feeding moans for said dislodging mechanism, a motor on themain frame, and power transmission gearing comprising an vupright shaft on said upright axis connected between said motor and said feeding means to effect the operation of said dislodging mechanism in its various positions of adjustment in advance of the main frame or to either sideof the forward end thereof.

`32. In a mining machine, the combination with a main frame, of a motor on said main frame, a supplemental frame pivotally connected to said main frame for adjustment relative to the latter on an uprightaxis to positions in advance of the main frame and at either side of the forward end thereof, dislodging mechanism mounted on said supplemental frame for feeding movement on an upright axis spaced fromsaid first-named upright axis, means for locking the main and supplemental frames in adjusted angular relation, and power transmission gearing between the motor on the main frame and said dislodging mechanism on the supplemental frame, said power transmission gearing comprising an upright shaft located at the upright axis between said main and supplemental frames.

33. In a mining and loading machine, the combination with a main frame, of a con veyer-having a semi-circular forward frame, pivotallyl connected to said main frame at the sides thereof on a. transverse axis, having a fixed relation therewith to facilitate maintaining the semi-circular receiving lip of the conveyer frame on the floor in advance of said main frame, dislodging mechanism mounted on sai-d main frame for arcuate movement relatively thereto in position to dislodge material to be received by the forward semi-circular portion of said conveyer, and means for operating said conveycr.

\ 34. In a mining and loading machine, the combination withv a main frame, of a conveyer having a forward semi-circular frame pivotally connected to the sides of said main frame on a transverse axis having a fixed relation thereto for yielding movement over the floor in advance of said main frame, and di'slodgingmechanism mounted on said main frame vfor semi-circular movement re1- atively thereto for dislodging material from an upright mine `wall into position to be received by the forward semi-circular portion of said conveyer.

35. In a mining and loading machine, the combination with a main frame having a forward `semi-circular face at its base, of a conveyer having a semi-circular frame at its forward portion pivotally connected to said main frame at the sides of the latter and near its semi-circular base on a transverse axis spaced back from the forward end of said main frame to facilitate maintaining the receiving lip of the semi-circular portion of the conveyer frame on the fioor in advance of said main frame, dislodging mechanism mounted on said main frame for arcuate movement relatively thereto in position to failitate dislodging material from an upright mine wall to be received by the forward portion of said conveyer, and means for operating said conveyer.

36. In a mining machine, the lcombination with a supporting frame, of a supplemental frame mounted thereon for pivotal move ment relatively thereto on an upright axis, a

series of spaced-apart penetrating ,wedging tools mounted on said supplemental frame to move bodily therewith andedapted to penetrate the solid face of the mine vein and by Wedging action split large Apieces of mineral therefrom, a roof .'ack for 4the ,forward portion of said .supporting frame, means for swinging said supplemental frame on said upright axis as a pivotto operate said tools while the forward portion of .sa-id supportinvrframe is anchored by said roofrjack, and

a j ack abutment connected to one side of the rear portion of said supporting fra-mei to prevent swerv'ing of the said su porting frame during the operation of sai' tools.

3.7. In .a mining machine, the combination with a main fra-me, .of a roof jack mounted on the forward portion of said frame, asupplemental frame 4pivoted to said'main frame for swinging movement on `,the upright axisA 0f said roof jack, a plurality .of penetrating wedging tools mounted .on said supplement-alv frame in spaced-apart relation and each adapted to penetrate the solid coal face of the mine vein and 'by wedgingV action tear lai'ge pieces of coal from the unmined mass, and means mounted on said main frame and connected te said -supplemental frame for swinging said` supplemental frame while said roof jack is anchored, toexert sufiiclent force on said tools continuously forward into the solid coal face to split large pieces ofcoal .therefrom between the loor 'and the roof of thev minechamber while said main frame Vremains stationary. Y

3,8, In a miningmachine, the combination with a main frame, of a roof jack for very firmly and powerfully anchoring the forward portion of said main frame in fixed away of, the coal from the mine vein in large pieces, and an abutment device for one side of ysaid mainframe to'resist swerving of the latter during operation of said dislodging mechanism.

39.. AIn a milling machine, the combination with a main frame, of a supplemental frame movablerelatively thereto, a hydraulic roof j ack for very powerfully anchoring` the fortocadas ward portion of said main frame in 'fixed and 1n immovable position, dislodging` mechanism secured rigidly to said supplemental frame for bodily movement therewith and comprising a plurality of spacedapart `claw-like penetrating tools each adapted to ent-er the coal in its native bed and by wedging action split the coal in 'large pieces from the mine vein overa wide areaV extending between the said toolsand above and 1below the same, said dislodglngmechani-sm being immovable relatively to said supplemental frame, means for moving saidl supplemental frame-relatively to saidmain frame while Ythe latter remains in' anchored position, to effect feeding movement 4of said dislodging mechanism and'causingthe latter to pierce and wedge the coal in lar e pieces over a wide area from the minerwa l during the continuous forward movement across the.

mine wall, anda'plurality of jack abutments connected to the'sides of saidV main frame -to prevent swerving thereofduring the operation of said dislodgin mechanism,-

40. In a mining mac in e, the combination withv a main frame, of a roof jacl'n for anchoring the forward portion of saidmain l frame, a supplemental frame mounted on said main frame for arcuate movement relatively thereto, dislodging mechanism comprising claw-like yspaced-apart pointed wedging tools connected together in rigid relation and rigidly connected to said supplemental frame for'bodily movement there with, said claw-like dislodging tools being adapted to engage the solid-face of the vmineral in vits nativekbed continuously while being fed'arcuatelyv along the same, means for operating said dislodgin mechanism including arcuate movement o said supplemental frame to effect arcuate feeding of' said dislodgingmechanism with a continuous forward movement to cause said spacedapart pointed wedging tools to penetrate the solid face of themine vein and by wedging action split large pieces of the mineral from theunmined mass, and a Wall jack connected to one side of Said main frame at the rear portion thereof to servey as anl abutment to resist swerving of the saidV frame during the operation of said ldislodgiug; mechanism.

41. In a mining machine, the combination with a main frame, of a roof jack for anchoring the forward portion of said main frame, a supplemental frame connected t0 the forward end of said main frame for arcuate movement relatively thereto on the Upright axis of said roof jack, dislodging y mechanism comprising spaced-apart penetrating wedging tools rigidly connected to said supplement-al frame to move bodily therewith and adapted to penetrate the solid coal facein its nativestateto tear large pieces of coal therefrom1 by wedging action over a wide area extending from the Hoor to A the roof of the mine chamber, means for imparting arcuate movement to said supplemental frame to efect feeding of said dislodging mechanism while Vsaid main frame remains anchored, and a wall jack pivoted to the rear portion yof said main frame on that side opposite the initial feeding position of said dislodging mechanism, to serve as an abutment to prevent swerving of the main frame during the operation of said dislodging mechanism.

42. In a mining machine, the combination with a main frame having an upright cylindrical bearing on its forward end, of a supplemental `frame having a hub pivotally mounted on said cylindrical bearing for arcnate movement relatively to the main frame on an upright axis, dislodging mechanism mounted on said supplemental frame for movement lbodily therewith while rigidly connected thereto against movement either up or down and `for continuous engagement with a mine vein during continuous forward feeding movement through an angle of about 180o from one side of the mine chamber to the other, means for confining said hub against up or down movement on said cylindrical bearing, means for swinging said supplemental frame relatively to said main frame through an arc of approximately 180 to eiect the operation of said dislodging mechanism while said main frame remains stationary, and abutment mechanism at one drical bearing during operation of said dislodging mechanism on the mine wall.

43. In va mining machine, the combination with a main frame, of a supplemental frame mounted on said main frame for swinging movement relatively thereto on an upright axis, dislodging mechanism mounted on said supplemental frame to move bodily therewith, means for operating the dislodging mechanism including the swinging of said supplemental frame to effect feeding, a roof jack for the forward portion of said main frame, a lateral abutment connected to the rear portion of said main frame at that side thereof opposite the starting position of said dislodging mechanism to resist swerving during the operation of said dislodging mechanism, and an additional lateral abutment connected to that side-of said main frame near the starting position of said dislodging mechanism and near said upright axis and near said roof jack to assist sai-d root jack to resist movement of said upright axis laterally during operation ot said dislodging mechanism and while said firstnained abutment acting as such.

44. In a mining machine, the combination with a main frame, of an upwardly extending cylindrical bearing on the forward end of said main frame, a hydraulic roof jack extending upwardly from within said cylindrical bearing, a supplemental frame having a hub pivoted on said cylindrical bearing for arcuate movements relatively to the main frame on an upright axis extending through said roof jaclndislodging mechanism rigidly connected throughout to saidl supplemental trame to be stationary relative thereto in all directions but movable bodily with said supplemental frame through an arc of approximately 180O while said main frame remains stationary, means for swinging said supplemental frame on said upright cylindrical bearing `to operate said dislodging mechanism on the solid coal face of a mine vein, and abutment mechanism connected to one side of said main frame near said upright axis in position to resist the tendency ott-he main frame to swing about said upright axis during the operation of said dislodging mechanism.

45. In a mining machine, the combination with an elongated main frame, of a roof jack for the forward portion of said main frame, a supplemental trame mounted on said main frame for swinging movement relatively thereto ou the upright axis of said root jack, dislodging mechanism rigidly connected throughout to said supplemental frame so as to be stationary relatively thereto in all directions but movable bodily therewith, said dislodging mechanism comprising means to penetrate the face of the coal in its solid native state and tear the coal from the unmined mass in large pieces over a wide area extending from the Hoor to the roof of the mine chamber, means for swinging said supplemental trame on said upright axis to operate said dislodging mechanism whilesaid roof jack is in anchored position, a wall jack connected to the rear portion of said main frame at that side thereof opposite the initial position of said dislodging mechanism, and an additional wall jack connected to the other side of said main frame near the initial position of said dislodging mechanism. y

46. In a mining machine, the combination with supporting framework, of a supplemental frame mounted on said supporting framework for swinging movement relatively thereto and comprising a radial arm, dislodging mechanism mounted on said arm for adjustment along the same to varying distances from the axis of swinging movement of he supplemental frame but rigidly connecte thereto in adjusted position for bodily movement therewith, and means for swinging said supplemental frame toV teed said dislodging mechanism at its adjusted distance from the axis of swinging movement.

47. In a mining` machine, the combination with an elongated supporting frame, of a supplementalframe comprising an arm, disiii) lodging mechanism rigidly connected to said arm with all of its parts stationary relatively to said dislodging mechanism, said dislodging n'ieclianism being adapted to penetrate the solid tace of the coal vein and split coal in large pieces Atherefrom over a Wide area by a translating movement of said arm and' said dislodging' mechanism while the latter including all ot its parts are rigidly connected to said arn'i'against movement relatively thereto in any direction, means for guiding saidai'in through said translating increment to` eil'ect. ope ation of said dislodging mechanism, a root jack for the forward portion of said main frame, a horizontal jack aliuti'nent connected to one side ot' said main fraine,a second horizontal jack abutment connected to the other side of said main vifran'ie, and aV third horizontal jack abutment connected to the rear end of said tools rigidly to said arm at an adjusted distance from saidL axis for bodily movement with said arm along an arcuate path, and

means for swinging said radial arm to operate said splitting toolsjwhile rigidly connected to said' arm. y

49. In a mining machine, the combination with a main frame, of a supplemental frame mounted thereon for swinging movement relatively thereto, vdislodging mechanism mounted on said supplemental frame Vfor bodily movement therewith and adapted to penetratethe solid face of a mine vein and split the mineral therefrom, yoke, a reciprocating plate in said yoke, anl eccentric for reciprocating said yoke, feeding means for poweritulljy swinging said 'frame relatively to said main trame to secure operation of said dislodging mechanism, and means ioi' rotating said eccentric to secure the operationof said feeding means by the reci pro-cation of said plate in said yoke and the oscillation. laterally of said plate and yolie.

50. In a .mining machine, the combination with a main trame, of a supplemental frame moi-:ated thereon for4 swinging movement relatively:thereto Von an upiight-.axis, disloi'lging mechanism mounted on. said supple-A mental frame for movement bodily therewith and adaptedto act on the solid upright coal `face to splitlarge pieces of coal theresupplemental from, a vertical driven shaft, an eccentric thereon, a yoke, a plate slidable in said yoke i and connected tov saideccentric, and feeding mechanism connected to said yoke for oper-- ation thercby when said shaft is rotated to cause said eccentric to reciprocate said' plate in said' yoke both laterally and longitudinally of the machine, said feeding mechanism being connected to said supplemental traine to swing the latter on said `upright` axis to ei'lect the operation oi said dislodging mechanism. c

5l; In a mining machine, the combination with a main frame, of a supplemental frame mounted thereon to swing' relatively thereto on an upright axis, al'ratchet ring on said supplemental frame, fa separate ringassociated with saidratchet ring,v paWl mechanism connected tosaid .separate ring f for drivingsaid ratchet ring, mining mechanism connected to said supplemental Vframe in position to operate on an upright mine Wall,

andmeansfor oscillating said ring'to cause said pawl mechanism to. drive said ratchetV ring and feed said n iiningi'nechanisin.

52; In a mining machine, the combination with a main frame adapted to be` supported on a mine flooigiof a supplemental frame mounted on said main frame for movement mit motion to the latter only in Vone direc-V tion,

53. In a mining dislodging mechanism on 'said supplemental frame tomove bodily therewith in position to operateon an upright mine Vwall-while said main frameris supported on thel mine floor,

reciprocating driving mechanism, and a rin clutch between said driving mechanism an said supplemental framel for imparting stephyp-step `forward movement always in the same direction to effect feeding offsaid dislodging mechanism,

54'. In a mining machine, the combination witha main frame, of a supplemental frame mountedthereon toswing relatively 'thereto on an uprightv axisandcomprising a radial arim a claw-like penetrating tool adapted to pierce the Vsolid face of a 'mine vein and split large pieces of coal therefrom above.

and below -the path of said tool, said tool being slidable along said radial arm to varions distances from the axis of swinging,

movement of saidv ysupplemental frame, means for securing said penetrating tool rigidly to said arm at-its adjusted distance from the axis of swinging movement ofthe supplemental' 'frame for bodilymovement-` mechanism 4 machine, thecombination` with a. main frame, of a supplemental frame,

with said arm along an arcuate path, and means for swinging said radial arm to cause said tool in its adjusted position to dislodge the coal by a penetrating wedging action. y

55. In a mining machine, the combination with a main frame, of a supplemental frame mounted thereon for swinging movement re1- atively thereto on an upright axis and comsupported on amine floor near an u rightV working face of a coal vein, of a plura it of pointed penetrating tools each adapte t0 pierce such working face and by wedging action split the coal therefrom over a wide area and in large pieces, feeding means for said enetrating tools, a yoke, a reciprocating' plfate in said yoke, an eccentric for reciprocating said plate and oscillating said yoke to effect the operation of said feeding means, and mechanism on said vsupporting framework for rotating-said eccentric.l

57. In a mining machine, the combination with supporting framework adapted to be supportedon a mine floor, of dislodging mechanism mounted on said framework for operation on anupright mine wall in ad- Vance of said framework while the latter is supported on the mine floor, a driven shaft mounted on said framework, an eccentric thereon, a yoke, a plate slidable in said yoke and connected to said eccentric, and feeding means for thendislodging mechanism connected to said yoke for operation thereby when said shaft is rotated to cause said eccentric to reciprocate said plate and oscillate said yoke. Y y

58. In a mining machine, the combination with a main frame, of a supplemental frame mounted thereon to swing relatively thereto, a ratchet ring on said supplemental frame, a separate ring, pawl mechanism connected to said separate ring for driving said ratchet ring, dislodging mechanism mounted on said supplemental frame, and means for oscillating said separate ring to cause said pawl mechanism to drive said ratchet ring and feed said dislodging mechanism.

59. In a mining machine, the combination with a main frame, of a supplemental frame mounted on said main frame for arcuate movement relatively thereto, dislodging mechanism mounted on said supplemental ,but continuously forward feed to sai frame for bodily movement therewith,mech

Yanism comprising pawl and ratchet means for swinging said supplemental frame to effect feedmgof said dislodging mechanism, and automatic limit mechanism for rendering v inoperative the ratchet means to effect auto- `mounted thereon for arcuate movement relatively thereto on an upright axis,`dislodg .ing mechanism at the outer end of said supplemental frame in Aosition to operate on an upright mine -wall orizontally in advance of said main frame, power transmission apparatus comprising vibratory mechanism, and clutch mechanism operable by said vibratory mechanism to effect a step-b -step su plemental frame to operate said dislodgidg mechanism.

61. In a mining machine, the combination with a supporting frame, of mining mechanism mounted thereon for operation on an upright mine wall horizontally in advance of said frame, feeding means for said mining mechanism, a yoke, a reciprocating plate in said yoke, an eccentric for oscillating saidA yoke, and means foi rotatin said eccentric to secure the operation o said feeding means by the reciprocation of said late in said yoke and the oscillation of said plate and said yoke while said mining mechanism operates horizontally in advance of said supporting frame.

62. In a mining and loading machine, digging mechanism, framework for supporting said digging mechanism for arcuate movement along an upright mine wall, meansfor pushing said digging mechanism to dislodge material from such upright mine wall, and loading apparatus for automatically receiving the dislodged material and transferring such dislodged material to loading position.

63. In a mining and loading machine, the combination with a main frame, of a supplemental 4frame connected to said main frame to swing .on an upright axis, multiple digging mechanism mounted at the outer end of said supplemental frame to have an arcuate path oftravel when said supplemental frame is swung on said upright axis, means for swinging said supplemental frame to effect the operation of said digging mechanismto dislodge material along an arcuate upright mine wall, and loading apparatus comprising a conveyer with a receiving end adjacent said dislodging mechanism and in advance thereof.

64. In a mining machine, the combination with a frame movable laterally along a coal face, dislodging mechanism mounted on said frame, a conveyer extendin in operation from points outside the coal ace to the baas lll of the rmine wall in advance of saidf'dislodging mechanism, a plate arranged to move beneath the dislodged material, means forcausing said plate to deliver dislodved material to said conveyer, and motor mec anismjfor 'operating said dislodging mecha- 6.5. In a mining machine, the combina.- v ktion with a supporting-frame, of roof jack 10 mechanism for vanchoring the saine, wall y 'abutment mechanism or'the rear portionl of said frame, arc-wall coal-stripping `mecha-k nism comprising widely spread-apart, claw- "lik'e penetrating nge'rs grouped in an upright seriesin position to `rip and tear the coal in large pieces from the solid` upright coal-face of the'mine vein, means for operating said coal-stril'iping mechanism by feeding said iingers arcuately, Aand additional wall abutment mechanism located ladjacent the vstarting position of said operating `means.

66.` In mining and loading apparatus, the

combination with'` a supporting framefof va `conveyer telescoped over said supporting v frameaiid having freedom of 4movement up ward portion fitting around theforward 67. In a mining and loading machine, the

'combination with a vmain frame adapted to rest on and slide'over a mine floor, of m1n- ,ing mechanism mounted thereon, a conveyer supported on'said frame and having Aaforlportion of said frame and adapted to'rest Lio on fand slide overtlie mine iioor and move i up 4and down relatively tofsaid supporting vframe, and `jmeans for operating said con vcyei to transfer. towardV loading position t'liemate'i'ial dislodged'by said mining machine.

68. In mining and loading apparatus, the

i, combination with a supporting frame adapted to rest on fand slide overa mine iioor,

Y of a conveyerinounted on said supporting frame to extend around the forward portion thereof and having'its forward end `adapted to rest on and side over the'y mine iioor -draulic mechanism compri sin `tor mounted on vsai vnected to `said 'anchoring mechanism to oprenie-free empfand ubwn aiding mave- "ments 4relatively to the `forward end of said supporting frame so that the weightsof the forward portion of said supporting frame and the forward portionxof said conveyerl willlbe supported by the floor independently, V:md-means for operating said conve er to transfer toward .loading position dis edged V'material' received thereby. f

joo

"69..In mining and loading apparatus, the combination with a supporting frame, of y mining mechanism" thereon, a conveyer telescoping over said supportingy frame and havjingf-reedom of movement u anddown -at its forwardy Vportion relative yfto said sup` orti-ng frame in position to receive material islodged` by said mining mechanismv andY to adapt said rconveyer to rest on l`the mine fioor whi e said'supporting frame reststhereon,

and means for operating said conveyor to Vtransfer-toward'loading position fthe ma- *terial Vdislodged bysaid mining mechanism.

50. In a mining machine, the combination with fsupporting vrframework, of dislodging -mechanism mounted thereon comprising pointed wedging Vspaced-apart re a tools arranged `in upright tion and adapted to move continuously "forward during operation to penetrate the solid coall of the face `ofthe mine vein andby wedging action split large portions `of thecoal from such lface over -a vwide area between 'the `floor and roof,` hya roof Ajack and a wall jacked-jacent t e roof Jack for powerfully lanchoring said `supporting lframework'to hold the same stationary dur- Y ingthe operation-of said dislodging` mechanism,y means for operating said i dislodging mechanism bylmoving such tools continuouscausesuch dislodging mechanism to dislodge the coal from its native bed in largepieces over such Wide area of the face of the mine vein, and means com rising a hydraulic moframework and coneratefthe same.

In testimony whereof I have signed my name to this specification on this 22nd day of' October, 1921. Y.

EDMUND o.Y MORGAN.

ly forward while said frame is anchored to

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