US1637531A - Mining machine - Google Patents

Description

e Shasta-sheaf 1.

E. c. MORGAN mama momma Filed Nov. 15-. 1920 Aug. 2,1927.

Aug. 2,.1'927.

E. C. MORGAN MINING MACHINE Filed Nov. 15. 1920 6 Sheets-Sheet 2 imwx (4 1,537,531 E. c. MORGAN 7 1mm; MACHINE Filed Nov. 15. 1920 e sums-shut 3 ////////////r //////////////////v ///////////////////////A E. c. MORGAN unu ug ncrmw Filed Nov. 15. 1920 6 Sheets-Sheet 4 5M Ai 9% win-1 Aug. 2, 1 927, 1,637,531

- E. c. MORGAN MINING MACHINE Aug. 2, 1927. v 1,637,531

E. C. MORGAN MINING MACHINE Filed Nov. 15. 1920 6 Sheets-Sheet 6 I I i 1:

Patented Aug. 2 1927. p I UNITED TATESP E T OFFICE- EDMUND o. MORGAN, or new YORK, N. Y.; OLIVE EUGENIE MORGAN nXnoU'rRIxo SAID EDMUND c. MORGAN, DECEASED.

, nmmeivmcnmn. Application filed November 15, 1920. Serial no. 424,050.

'My invention relates to mining"machines Fig. is a plan View of I the structure comprising coal splitting mechanism and shown in Fig. 8; s one of the objects of my inventionis the Fig. 11 isa sectional. view taken on line provision of an etlicient apparatus of this 111l of'Fig. 8 looking in thedirection of 5 type. I the arrows; I 'More particularly it is theobject of the Fig. 12 is anelevational view of'mechapresent invention to provide splitting mechnism for guiding the machine shown iii-Fig. anism and apparatus for operating the said 2 along an archaving a comparatively long to dislodge coal from a mine wall in a long radius; I c v all operation. Fig. 13 is a plan view of the structure A further object is the provision of hyshown in Fig. 12; draulic mechanism for automatically mov Fig. lat is an enlarged view showing in i ng splitting tools into position for operadetail the hydraulic pump mechanism adapttion in a minev wall and'then automatically ed for use at the upper and lower ends of and more slowly apphring a more powerful the hydraulic motors shown in Fig.4 action to etl ect the dislodgment ofmaterial Fig. 15 is adiagrammaticillustration of from the mine wall. the pipe connections between the .inultiple Other objects otthe inventi n will appear alve structure shown in Fig. '8 and the hereinafter; the novelcombinations and "tea lirdraulic pumps illustrated in Fig. 4 at i tui'es being set forth in the appended claims. the central portion thereof;

.ieilerrmg to the accompanying draw Fig. 1G is a diagrammatic illustration of 'mQs "the connections between the valve structure Fig. 3 is a rear end elevational view of the Fig. .18 is a sectional view to show the 5 arrows Fig. 1 is an end elevation of my imp rovecl shown at the central portion of Fig. 3 and long wall mining machine; the hydraulic pumps shown at the right 5 2 is anelevationalview of the mahand portion of Fig. 4:; i

chine; I p I a 17 is a sectional elevation of an on- Fig. 2 is a section of FigQQ on the line largenleut oi. one of the hydraulic motors l 2 +2 looking in the (directions of the shown in Fig. itto show the details of the arrows; controlling mechanism;

machine shown in Fig. 2; i a I details of the valve structure shown atthe Fig. 4 is a sectional elevation taken on central portion of Fig. 3'ttor controlling the line t-l of Fig. 6 looking in thedirection mechanism operated by the puinpsillustrat- I of the arrows; f i v ed at the right-hand portion of F ig. 4;"

Fig. is a sectional elevation on the line I 19 is a plan View of the structure of Fig. t looking in the direction of shown in Fig. 18; the arrows; i I I Fig. 20 is an elevation partly in section Fig. 5 is a sectional elevation of Figs. 4 0tanelectrically operated pump which may and'6 taken on lines 5- looking in the dihe substituted imthe tool hydraulically rection of the arrows; operated pumps shown at the central por- 9 Fig. 6 is a plan view of the machine tion of Fig. 4; l

showninFig. 2: I Fig. 21 is a sectional elevational view of ."Fig. 6: isa sectionalelevation on the'line 20 on line 21-21 looking in the di-. 6-6"*0f Fig.6 looking in the direction Of rect'. n of the arrows; r the arrows; Fig. 22 is, a diagrammatic view illustiatRl F 7 is a plan, view partly in section of inc the arraneemcntoi thepipe and connecthe pneumatic connections for the mining tions for the electrically operated pump machine shown in Figs. 2 and 4; shown in Fig. 20; 1 I Fig.8 is a sectional elevation takenlongi- Fig. an enlarged sectional elevatudinally through the multiple valve struction of the details of the hydraulic pump W5 "tare .shown'jlt the lower central portion of mechanism adapted to he used in the struc- Fin. 6; i i i 1 I turesshowninFigsl 20 and 21; and

- Fig; 9'is asectional view of Fig. 8 taken Fig. 2st is a sectional elevation adapted to on line 9+9 looking in thedirection of the he used in connection with theelectrically operated pump to control the valves in'the ll water supply pipes to effect the stopping of the motor shown at the right-hand portion of Fig. 21 after the splitting tools have been moved into position for operation as hereinafter described. I

The ma n frame is adapted to rest on the mine floor and move over the same floor and'the other arm extends upwardly. and has pivoted thereto at 56 a roof jack 57 comprising a plunger 58 adapted to be thrust upwardly, as indicated by the dotted lines 59 in Fig. 2. As shown in Fig. 5, the roof jack 57 maybe moved rearwardly on the pivot 56 so as to occupy a folded position below the upper plane of tlie machine. 7 A supplementalframe 60 pivotally connected at 61 to that portion of the frame 50 adapted to be located adjacent the mine wall, as shown in Fig. 6. The frame 60 extends forward along the mine wall and laterally to a position in advance of the i shaped support 53, as shown in Figs. 2 and 6. At the lower forward end of the supplemental frame is a diagonal projection 62 adapted to have secured thereto a conical splitting tool 63. Another splitting tool holder 6% is provided at the upper forward portion of the supplemental frame 60, as shown in Figs. 1 and 2. and such holder 6% is adapted to receive the conical splitting tool 65 in position to engage the coal intermediate the floor and roof thereof in advance of the upper and lower splitting tools 63 and 66, as shown in Figs. 4 and 6. An additional splitting tool or digger may be provided at 67 intermediate the tool holders 62 and 6 1. as shown in Figs. 1. 2 and 4. h At the forward lower horizontal portion of the supplemental frame 60 is a series of spaced-apart digging tools 68, as shown in Figs. 1 and 2. l V

Pivotally connected at 69 to the supplemental frame 60 is an auxiliary frame 70 which extends forwardly along the upper portion of the machine and laterally to a position in front of the arm 55 as shown in Fi 6. 'This auxillar frame 70 has asuby stantially' flat top and is provided at its forward end at the mine wall with av tool holder 71 which is adapted to receive the conical splitting tool 66. An arcuate extension 72 extends into an arcuateoguiding recess 73 in which it fits and along which said extension 72- is adapted to slide in upright dlrectlons. The depending guiding extension 72 may be provided on its forward face with a comparatively small splitting or digging tool't'd. The forward edge of the auxiliary frame 70 may be provided with a series of spaced-apart splitting or digging tools 75 similar to those shown at 68: The upper series of digging tools 75 is 7 adapted to scrape along the roof of the mine chamber while the lower series 68 is adapted to scrape along the floor of the mine chamber over areas equal to the width of the mining machine, as shown in Figs. 1 and '6, while the vertical series of" spaced apart large and powerful splitting tools are adapted to be projected along the mine wall to dislodgethe coal in comparatively large blocks as illustrated in Fig. 6. It should also be noted that the front face of the frame 60 is inclined diagonally toward the rear from the upright series of large tool holders, as indicated at'76 in 6. The extensions for supporting the diggers 75 and 68 are therefore in the form of spacedapart horizontal plates 7 7 and 78, as shown in F 1 and 6. It will thus be seen that during the operation of the machine and while the tools 75 and 68 are scraping along the roof and floor of the mine chamber the dislodged pieces of (Oil will be deflected away from the mine wall by the upright incline; deflector 76, the latter being movable forwardly beyond the forward end of the T-shaped supporting frame 58.

Mounted on the frame 60 so as to be rigidly secured thereto, as by being made inte gral therewith as shown in Fig. 5, is a cylinder 79 in which is movable'a piston 80 hav ing a piston rod 81 extending rearwardly for pivotal connection at 61 to the frame 50, as shown in Fig. 6. When the frame 50 is anchored by means of the hydraulic roof jacks 51 and 57 pressure may be exerted on the piston 80 in the cylinder 7 9 to move the supplemental frame 60 and auxiliary frame 70 forward along the mine wall to dislodge the coal, as indicated in Fig. 6. lVhen the anchoring jacks 51 'and'57 are released the hydraulic motors 79, 80, 81, may be operated to move the frame 50 forward to a new position, while the supplemental and auxilfliary frames 60 and 70 remain stationary.

Then the frame 50 may a a... be anchored and the splitting tools moved forward with considerable power to perform another dislodging operation at tlie mine wall.

In order to properly guide the upright series of splitting tools along the mine wall a plunger 82 may be provided in a horizontal transverse cylinder 83 at the lower portion of the supplemental frame 60, as shown in i. Such cylinder 83 may be immediately below the forward end of the large longitn dinal cylinder 79 of the main hydraulic motor. The plunger 82 may be moved to ward the mine wall a predetermined distance series of splitting tools along the mine wall.

Below the auxiliary frame 70, intermediate theends thereof, as shown at 8 1', is H force to effect the dislodgment of the coal. I

pivoted a vertical depending piston rod 85 at the lower end of which is a piston 86 lit ting in a vertical cylinder 87. end 88 of the latter is adapted to rest on the The lower floor of the mine chamber. As shown in Fig. 6, the cylinder 87 extends through an elliptical opening 89 in the supplemental frame 60 so that the cylinder 87 may have a forward and backward movement relatively to the supplemental frame 60, but the cylin der 87 .is not connected to the frame 60 directly.

Byreferring to Fig. 4 it will be seen that ;the operation of the hydraulic motor comsplitting tool 63 along the floor.

prising the cylinder 87 adjusts the elevation of the auxiliary frame 70 on its pivot 69 so as to vary the height of the splitting tool 66. However, "the lower end 88 of the cylinder 87 is adaptedtorest on the floor of the mine chamber for the purpose of accomplishing the additional function ofguiding the lower This function is effected by providing a locking hydraulic motor 90 pivoted at its lowerend at 91 to the interior'of the frame 60 and at its upper end at 92 to the underside of the auxiliary frame 70', as shown 1n F1g.4;.

A piston rod 93 extendsto a piston94= and control parts 22 and 23 are provided at the ends of the cylinder 90 so that the uppermost tool (56 may be regulated in its distance from the lower tools. I hen the adjustment has been made the piston 9 1 may be locked hydraulically against further movement,

and when this takes place any upward move ment of the piston 86 will not only move the auxiliary frame 70 upward, butalso the frame 60 by reason of the motor 90. Therefore, on account of the motor 90 looking the auxiliary frame and the supplemental frame together, the adjustment in elevation ofthese frames by means of the motor 87 will cause the shoe 88 to guide the lowermost splitting tool 03 along the floor asdcsired.

In order to properly guidcthe splitting tools against up and down movement a cylinder 95 may be mounted on the frame so as to receive a vertical plunger 96 ina position to bethrust against the roof of the mine chamber. This guiding mechanism not only prevents the lowermost splitting tool 63 from being moved upward beyond a predetermined distance, but also controls the forward movement ot'the uppermost Spill) tin tool 66 along a aproximatel llOl'lZOIlttll. I h Q l planes because the motor90 is'relied upon to lock the frames 60 and together during .the'operation of the machine.

After the'mining machine has been moved into position adjacent the mine wall and the dislodging mechanism alon the mine wall and then exert a slower and more powerful therefore, prefer to provide a double set of pneumatically operated hydraulic motors comprising a housing 229 securedqto the frame 50 at the cylinder 79, as shown in Fig.

Inthe cylinder 97 is located a piston98,

and in the cylinder 99 is located alpiston- 100.

Secured to :the upper and lower sidesof the piston 98 sofas to be movable therewith are plungers 101and 102, and secured tothe upper 'andclower sides of the pistonlOO so as to move therewith are plungers 103 and 10 4. The plungers '101 and 102 are of larger cross-section than the plungers 103 and 104 because it is desired that the largerplungers piston 100 continues so that the pumps operated by theplu'ngers 103 and 104 will cause the main hydraulic motor-79 to continue to act .toefiect dislod-gment of, the coal.

The pistons 98 and 100 are pneumatically operated andfor this purpose pipe connec- 'il'OOf jacks 51, and 57.have been operated to ,anchor the main frame 50 itlis desirable to effect the quick forward movement of the tions are provided connected by means of the main supply pipe 105 to a source of supply, such as compressed air. In thQSUPPlY pipe 105, ,asshown in Fig. 7, is a main control valve 106 operable by. means of the handle 107 shown in Fig. 2. The supply pipe is supported on the main frame .50 by means of the bracket .108. Apipe 109extends forwardly longitudinally of the machine and telescoping into the pipe 109 is another pipe 110, as shown in Fig. 7, so that connections to the motors 97 and 99 may be maintained whenthe splitting tools occupy various forward positions. It should be noted that the motors 97 and 99 are secured to one side of the cylinder 79and therefore these motors are in reality. secured rigidly to the supplemental frame 60 and are movable forwardly therewith. -Therefore, the supply pipe 105' is connected to'the motors 97 and 99through extensible connections comprising the tele scoping tubes 109 and 110.

c As showninFigs. 2, 4, (Sand 7 a branch pipe 31 extends fromthe tube 110 tothe pneumatic motor 97. 'l hetforward end of the tube 110 is provided with automatically operated valve mechanism for controlling the supply of pneumatic pressure from the cham- ,'ber 33 to the pipe 32 to the motor'99." The pneumatically operated valve mechanism (3QII1 p1'1SlI1g a housing 34 having therein a spring 111 exerting its pressure on the "valve 1 112 so as to close oommunicatronbetween i the pipe-'110' and the chamber '33 while the motor 97 is operatedp The under side'of the down to operate the smaller plungers 103 "and 10iandtherehy operate't-he hydraulic pump to secure slow and powerful movement of the upright series of splitting tools'by a comparatively" slow operation of the main hydraulic motor'TQ. 1 In Fig. lt'I have i of the hydraulic pumps 2st, but it should be understood that one of these pumps is located belowzthe piston 100 as well as above the same, and that similar pumps are located above and below the piston 98. These pneumatically operated pumps are entirely automatic in their operation. 1 V Y By referringsto Figs. and 7 itwill be seen thatWhen the plunger 103 moves upwardly in the cylinder the check valve 116 will be closed thereby cutting otf'com munication from the supply pipe 30. At

the same time the check valve-117 will be open toward the right so thatthe liquid in the chamber 118 will be forced into the exhaust pipe '25. The lowerplunger 1041 operates in thesame manner to close a check valve at the pipe 30 whenthe plunger 101 is moved down and at the same time opens a valve at the pipe 25. In the same manner the plungers 101 and 102 operate hydraulic pumps and the checlr'valves in the pipes 30 and 25 occupy the same relation as shown in,

Fi 1 1. Therefore Whenever an of the r: 7 V V V 4: T plungers are moved toward the ends or tne cylinders the valves at the pipes 30 will be closed and the valves at the pipes 25 open, and when the plungers move'in thereverse direction-liquid will be drawn into the cylindersthrough the pipe 30.

lVhenever the valve 106, as shown in Fig.

7, is opened. there-will be a supply of air pressure directly'to the motor 7 9 through the pipe. 31, the communication to theother motor 99 being cut ofi' by reason of the closure ofthe valve 112. Not until the pumps operated' by the piston 98 meet with sufficient resistance to. stop the movement of the piston 98 will the pressure in'the, pipe 25 of Fig. .7 be sufficient to'openthe valve 112 andlet a supply of air pressure through the pipe tothe motor 99 to operate the latter.

1? in an enlarged sectional elevation.

llustratedin detail one the passageway 145 5 and port 1%" to The details of the mechanism for controlling the operation of the pneumatically operatedduplex pumps are SAOWZ] in 1* 1g. The air pressure supply pipe 31 connected to a passageway 119 in the housing 90. Sue

branchof this passageway 119 extends into the cylinder 1 20 and the left-hand. br" -ch extends to the chamber 121 which is adap to communicate with'ports the-vertical tappet valve 122. In the position of this valve shown in Fig. 17 the port 123 establishes coi'mnunication between the supulj, pipe 31 through the passagewa Y 12% to the o l drical cylinder to the right or it c slidable valve125'. .lVhen the latter port 126' establish-es communication hetveen the supply pipe 31 to the cylinder 9? through the passageway 127 above the pi?- ton 98. When the ve occupies the position shown in in 17 its upper port 128 connects the passageways 129 and 130 so that the left-hand end of the cylinder 120 will be connect-Id to exhaust and permit free movement of the valve 125 to the left.

The valve is connected by means of the rod to the lower tappet valve 132-. Therefore, when the p ston 98 strikes the tappet133 to move the valve'122 to its upper position shown in Fig. 1'? the 'tappet valve 132 will be moved upwardly so that its .tappet- 13% will be extended into the cylinder in position to be stiuc by the piston 98 when the latter moves down toward the limit of its down stroke. way 135 in the housing 96 connec th ply pipe 31 to. the lower passz the latter being provided with extending to the cylinder 13'1" and with another branch extending to the chamber 138. then the tappet valves are up com munication is establishedbetween the supply pipe 31 and the left haud end at cylinder 137 through the port 130 passageway 1 10. Therefore. the r-vl. valve 1 11 will be moved toward This movement is permitted be =1 ta port 112 in the valve 132 estahhs comm 1- nlcation between the right-luuui end the cylinder 137 through the passageway 1413 to the exhaust port 14%. hen th cvlindrical valve 1411 is moved to its 1' hand position, as shown m'F l'irthe cvlinder 97ibelow the piston 98 is connected throuch exhaust port 147 he piston 98 will th fore be free to move downwardly by TL. of, the pressure exerted'on top of; the same from the supply pipe 31 through thopas saeeways'119, 126 'anddiZT.

' Vhen the piston 98approaches the limit of its downward stroke the tappet-131 is struck by the pi ton to moveboth the valves 122' and 132 to their lower positions.

1. slit lVhen thisoccurs the port- 128 connects the chamber 121 to the passageway 129 and therefore pressure will be exerted from the supply pipe 31 to the lefthaml end of the valve 125. At the same time the end of the valvr 19.73 will he (3 v the exhaust port 136 through the pas Wal /124 and the port 123 n the valve 1122. Upon the valve 123 h moved toward the right the connect on h weenthe r lupply 'pipe' 31 and the cylind "9? will he cut oil? and the exhaust port 1418 will be connected to the space above the piston 98 through the passageway 12? and port 1 6. .ilie piston 98 will then be free to. he moved upwardly by air pressiure exerted on the underside thereof; The flow of air pressure to move the piston 98 upwardly s securcdhy the downward movement of the valve 132.

When such downward movement takes place the supply pipe 31will heconnected through the chamber 138 port 1&2 and pas. sageway 14:3 to the right-hand end of the cylinder 137. At the same time the lf f"- uhand end of the cylinder 13? will. he coan-ected to the exhaust portfjl l lthrough the passageway 14.0. port 139 and nissageway 146). The valve let-1 will then be free to move toward the left. cutting off connnunication between the cylinder 97 and the exhaust port 147 and estaliilishing communica.

tion between the passageway. 136, port 1%;6-

and passageway 145 to the under side of the piston 98. i The operation of the mech anismfshown in Fig. 17 is entirel automatic and it should he understood that each of the four pistons shown" in lug. tor

operating the pumps is controlled by mechanism' similarto that shown in ,l ig. 17. The rear set of pneuniatically operated pumps is forthe purpose of opcrati the various anchoring devices; while the forward set is. for the purpose of operating the main hydraulic motor 79 tosecure operation' of the coal splitting mechanism.

a. housing 150 mountedon the mainframe 50. 'Thcrefore a separate arr pressure supply pipe 151 may he used for leading air pressureto the pipe15 2 and thcnce to the branch pipes and 154. ince the pumps are mounted on the main frame no tele' scoping extension, such as that shown in Flg. 1s necessary for supplying air pressure to the rear set of pneumatic motors. Referring to the right-hand port-ion of Fig. 41 it will he seenthat inthe coinpara tivoly small cylinder 155 is a piston 156, while in the comparatively large cylinder 157 IS apiston 158. The piston 156 is pro-,

'vided with anupwardly extending plunger 159 and, a downwardly extending plunger 160 otcross-sections larger than the crosssect ons of the plungers 161 and 162 which extend above and helow'the piston 158. The

The rear set i of pneumatically operated pumps comprises plungers 15 9. 160, 161 and 162 constitute respectively parts of the hydraulicpumps 163, 16 1-; 165and 166 each of which is provided with check valves similar to those shown'in Fig. 14:, the check valves at the pipes 35 of these pumps opening toward the right, and the check valves at the pipes 36 being a ranged to close when the plunger is moved toward the ends of the cylinders.

When the valve 16'?' in the supply pipe 151 is opened air pressure is immediately led through the pipes 153 and 154 to both motors and 157 and both may immediately operate to effect the operation of the hydraulic pumps to exert pressure in the pipes 35 leading to the various anchoring and guiding devices through the control valves at the rear end of the machine.

The pump mechanism having the larger plungers 159 and 160 and the smaller piston 1.56 will operate to quickly move the various p'lungers ofthe hydraulic jacks and'guiding devices into positions where they meet with re istance and the back pressure will cause the piston 156 to stop, but the piston 158 is designed torontinne the operation of the plungers 161 and 162 to exert suflicient hydraulic pressure to firmly anchor the main frame into the desired position by operation of theroof jackshl and 57. The valve mechanism for controlling the hydraulic pressure is secured to the supplemental :t'rame 60 and is movable therewith so that piping connections may be secured so as, to

be movable for carrying l'iydraulic pressures between the pumps and the various hydraulically operated devices. It will thus be seen that the motors 97 and 99, together with thehydraulic pumps operated thereby are mounted on the supplemental frame 60, and since the valve mechanism 168 is also mounted on the frame 60 rigid piping connections suitable for hydraulic pressure, may he used, as illustrated diagonally in Fig. 15. I prefer to have one point of control of all of the valves on the machine and I thereforeprovide the operating handles at the rear of the main frame, shown in Fig.

3. Since the valve mechanism 168 moves forward with the frame 60 while the frame 50 remains stationary, I provide long. tubes connected to the operating handles, such tubes comprising sockets angular in crosssection to lit extensions from the valves. For instance,-the tube 27 is provided with a "socket having a squared cross-section to fit o the valve 1701's in the position shown in Fig, '8 its port 149 will permit the wa er to how 96 the weight of the'latter valves 170, 171, 172 and that connected to nected to the cylinder '95, as shown in 4. It should be understood that the supply pipe 25 of 8 is connected in multiple with the pipes oi the hydraulic pumps shown at the central portion ct F t. hen the valve 1"9is moved to the position shown in Fig. 8 and pressure exerted through the pipe 16 on thebottom of the plunger 96 in the cylinder 95, the plunger 96will be moved upwardly, 2.1 d when proper guiding position the valve 169 may be moved to neutral. position to cut off the supply of the water to and. from the pipe 16. hen it is desired to lower the planner is relied upon to force the-liquid out or the cylinder 95 through the pipe 16 into the pipe 26 shown in Fig.8. hen the valve 169 is moved to the position where the port 177 establishes comn'iunication with the pipe26 the water will flow out of the cylinder 95 through the pipe 16 into the pipe 26. The same valve 169 provided with ports 177 and 178,'as shown in Figs. 8 and 9, is therefore sutlici'ent to control the operation of the root guiding lnechanisin comprising-the cylinder 95 and the plunger .96. 1

V In a similar manner the valve 170 may be operated to control the wall guide comprising the cylinder 88 and plunger 82. When from the pipe 17 into the return pipe 26,

' shows the valve 169 having ports o the ports in the valve 79 and when the valve 170 is turned to neutral. position the plunger 82 may be locked in adjusted guiding position. in order to thrust out the to the desired position the valve 1.9cshould be t rned so that the port 1 thereii'i will est niunication between the pipe one I? i 17. The manner in which this is done c readily be seen by referring to Fig. 2

1 it sl be noted that the section ine 8+8" along the supply passages L along the return passages 26.

here it is necessaryto con'ununicate to a cylinder of a hydraulic motorat both ends thereof on opposite sides of the piston. cvlinder valves, of the type shownjat 171- ahd 172 in Fig.8 should be used. The ports of such a valve are shown in Fig. 11. the latter being a sectional iew' on line 11 11 of F 8 looking in the direction of the horizontal as shown in Fig. 4:. At the same time that pressure is exerted on the lei't-hand end of the piston 80 in the cylinder 79 by moving the valve 171 to the position whereits port 181 will connect the passage 25 with the pipe 1Q LllQ port 182 will be connected between the pipe 19 and the return passage 26. The pipe 19 isconnected to the right-hand end of the cylinder 79, as indicated in Fig. 6. Therefore, the water at the right of the pisten 80 may be exhausted through the pipe 19 when pressure is exerted through the pipe 18 on the left-hand side of the piston80 to effect. forward movement of the coal split ting devices. The arrows'in Fig. 8 indicate the flow of the water from the supply passage into the pipe 18 andback along the pipe 19 into the return passage 26. It should be noted that the section line 10-10 of Fig. 10 is along different vertical planes at the sides of the vertical center line 183. The sec tion of the valve 171 to the lettot the center line 188 is through the port 181, Whereas the section of the valve 171 to the right of the center line 7 183 is through the port 182. There is an additional port 184 for connecting the pipe 18 to the exhaust passage when the valve 171 is turned into position for connecting the supply passage 25 to the pipe 19. This is illustrated by the position of the valve 17 2 because when the port 181 connects the supply passage 25 to the righthand pipe 21 the port 18 1 is connected between'the lett hand pipe 20 and the return passage In other words, when the valve 171 is turnedto the position shown in Fig. 8 at the valve 172 the supply pressure will be exerted through the port 181 to the pipe 19 and thence to the cylinder 79 vatthe right of the piston 80 to move the latter to the out of the cylinder 87 above and below the pi ton 86. It is evident that by turning the valve 172 to neutral position the piston 86 may be locked in adjusted position in the cylinder 87 so that the supplemental frame and the auxiliary frame will be adjusted in elevation by reason of the shoe 88 restingon the floor of the mine chamber.

The valve 17 3 is similar to the valve 171 and 172 and in the same manner controls the flow of fluid pressure into and out of the cylinder 90. By moving the valve 173 to 7 portion of Fig. ll

a ia aipoiaon the piston94: may be locked in the cylinder 90 so that the supplemental trr'ime 60 and auxiliary frame 70 will be rigidly connected together." Such a neutral position may beeflected by moving the'valve inja clockwise direction a small angle from the position shown by the valve 172 in'Fig. 8, comn'iunicat oi'i then being closed between the pipes leadlng to the hydraulic cylinder and also betweeneither ot said pipes and eitherthe supply pipe or the return'pipe 26 Instead Of 'relying on the valve 173 being moved to neutral position the locking-of the piston n the cylinder 90 maybe effected ,bythe valves 225 and 226, respectively, operable by the handles 227 and'228. I

In a suitable position below themain hy-' draulic cylinder a water reservoir 185 may he provi'ded, thetilling opening being closed by the screw 186. As indicated at 30, (F lg.

55); the water iii the reservoir 185 is' con stantly in commun cation with the pipes shown in Fig. .1 connected to the hydraulic pumps above and below the pistons 98 and 100. The reservoir being connected hy'i'i'icans ()il tllc pipe. tothe various pumps in multiple simply maintains sutlicient fluid pres sure ine'diun'i for circulation through-the supply pipes 25, the various valves in the valve a; .1 i r i 1' structure 168 and the pipesand themo ors connected theretoythe return passage being into the pipe Ot'course, the water reservoir 185 should be ot sutlicient capaclty to 'ciiable the various motor cylinders to be l'rmotoi' cylinders including those lillcth s1" designated 95, 83,79, 87 and 90.

By referring to Fig. 15 diagraminatically illustrating the pipe coni'iections it will be ceenthat the reservoir 185' is connected by means of the pipe 30 with the pipe 26'which leads into'the valve structure shownin Fig. 8 EtH Zh ot' the branch pipes designated 30 in Fig. 1'5 isconnected to the pipes 30 shown in -1 itlso, each of thebranch pipes 25 shownin Fig. 15 is connected to the correspondinpppipe 25 of Fig. 4 There'is also an end pipe connection designated 25 which leads to the pipe designated25 in 7; 1 ierefore, taking Fig. 15in connection with F s) tenrtor the hydraulicpumping mecha-v nisni'inay be readily traced, including the flow or the fiuidpressure medium into and out of the fluid pressure motors 95, 83, 79, STand 90;

Fig. 16 illustrates diagrammatically the pipe connections between the reservoir, 187

and the a. lrn' pipe 36, as well asthevarious ctmnect ons to the hydraulic motors mountedlon the main frame at the right-hand thejvarious connections designated 35 in 1- anl their relation to the valve struc- 188' which located at the rear of the e, as shown iii Fig.3; This valve structure is shown in detail in Figs.

root of the mine chamber. may be released by moving the valve 189 is. 145, 7 and 8 the complete circulating Fig, 16 also illustrates 1 port 190 willfestablish communication hetween the supply pressure pipe 35 and the pipe 37 which leads to the hydraulic jack 57; The plunger 58 may then be moved to the dotted line position indicated at 59 in 'Fig. 2 to anchor the ,T-shaped extension 53 of the main-frame between the floor and, This root jack so that the port 192 will connect the pipe 137' to the retui-n passage 36." In the same manner the valve 191 may be operated to connect its port 192 between the supply pipe 35 and'the pipe and thereby effect the op e'ratlonof the plunger 1193 which is in porsition'to act as a guideior the rear portion of the'mainframe adjacent theminewall.

1 When the valve 191 is turned to" the position shown in Fig. 18 its port 194: is connected between the pipe 38 and the return passage 36 so that the plunger 193 maybe moved to the initial position'shown in Fig. 3.

o By operating the valve 195 the how of the pressure medium through the pipe may be controlled to controlthe roof jack 5]..

InvFig'. 121 have illustrated a roof jack 196 to thehlfower end of which is pivoted an elongated dii'e'ctiiig arm 197, to the outer end of which is pivoted at 198' the forward portion of the main frame of theniining' machine showirin Fig. 2; A bracket 199 maybe secured tothe arm 54 of Fig. 2 and an additional brabket 200 maybe secured to the lower rear portion-of the main frame '50. A link 201Jis pivotally connected at 202" to thebrackQt QOO atone end, and the other end is pivotally connected at 203' to the arm 197 intermediate the ends thereof. By means of this anchored pivot and radial arm mechanisi'n themining machine shown in Fig. 2

may be directed along an arcuate' path of a travel on a comparatively long radius.

In Figs; 20 to 24, inclusive, I have illustrated electrically operated mechanism for securinghydraulic pressure-to operate the various hydraulic motors shown on the mining machine illustrated in Figs. 1 15016, i11

elusive, 'lhe electrically operated mechanism shown in Figs. 20' and 21 may be substituted for thepneumatically operated mechanism shown in Fig. 4. For instance, the housing 229 of h together with the mechanism carried thereby, may be removed I from the supplemental frame 60' and r'e-' iii 20- and 21.

placedby the housing96wshown Figs Mounted in the housing is an electric motor at 204 provided with a shaft 205 having a a worm 2O6 at the'outer end thereof in position to mesh with the worm wheel 207. The worm wheel 20? is journaled in bearings 208 and the outer ends of the shaft 209 which carries the worm wheel 207 are pro-.

vided with eccentrics 210 operating eccen tric'straps3211 connectedbylinlrs 212 to the upper ends'of plungers 213 and: 214. .The upper ends of the'plungers 213 and 214 are, pivotally connected tothe eccentrically opergated links212 so that the plungers willhave, vertical movements in their respect ve cyhnders 2l5 and 216. I

In Fig. 23 I have illustrated the valve mechanism which should be used at the lower endsof the cylinders 215 and 216. henthe plunger213 descends the check valve 223 isclosed and the check valve 224 is opened. hen the plunger 213 reciprocates the hydraulicpump will operate to draw the water from the pipe 30 and force .itinto the pressure pipe-25 in the same mannerthat thepipe 24 of Fig. 4 operates to draw water from the pipe 30*and force it into the supply pressure pipe 25. I

It willialso be seen that Fig. 21 shows the lower right-hand hydraulic-inotor provided a with a plunger having a larger cross-sec pump plungers 213 and 214 are first operated.

tional area than the plunger 213. j This difference in area correspondsto the. difference in area ofthe plungers 160 and; 162 of Fig. 4.

lVhile in connection with thepneumatically operated hydraulic pumps I have provided the mechanism shown at the left-hand 7 portion of Fig; 7 to effect successive operationgofthe motors 97 and 99, I have also illustrated a modification inconnection with the electricallyoperated pump by providing the automaticallyoperated valve mechanism shown in Fig. 24. As shown. in Fig. 22..the

Q; pipes extending from the left sides of the cylinders 215 and 216,.lead to the. pressure supply for the various hydraulic motors to be operated. At 217 I have provided a'fluid. pressure operated valve device illustrated in detail in Fig. 24. This device comprises a hydraulic cylinderq2l8 which is connected to the pressure supply pipes v'25. When the draulic motors may be moved quickly to the Mdesiredpositions. After such hydraulic motors meet WIth'IQSIStaIICG'SO that more -power isrequiredto operate them the pressurein the pipes 25 will be increased until the plunger 220 shownin Figpel: will be moved down to close the valve 221 againstthe action of the spring 222, whereupon communication'between the pipe 30 and the pipe2l9 will be'c'ut off and subsequent operation will be effected by the motor 215with its smaller plunger, the-motor 216 becoming inactive to produce anyfurther pressure in the pressure pipes 25. The hydraulic motors will then be operated more slowly but more powerfully as theele'ctric motor 204 continues to operate the hydraulic pump 215 having the smallerplunger 213. When the pressure in the hydraulic motors is relieved the spring 222 will automatically move the valve 221 to initial position; In the same manner when the pressure in the pipe 25 of Fig. 7 is sufficiently relieved the spring 111 will automatically close the valve 112.

Obviously those skilled in the art may make various changes in the detailsand arran gements of parts without departing from the spirit and scope of my invention as defined by theclaims hereto appended and I wish therefore not to be restricted to the precise construction hereindisclosed.

What I claim and desire to have secured by Letters Patent ofthe United States is:

. 1. In a mining machine, the combination with a main frame, of means for anchoring the rear portionand the forward portion of said frame rigidly between the floor and roof of a mine chamber, mechanism for forcing a cleavage in a coal vein, means for supporting suchcleavage mechanism with an entirelyfree and unobstructed space inad vance thereofand formovement along said frame while the latter remains rigidly anchored, andmeans connected to the rear of said cleavage mechanism for operating the 2.'In a mining machine, the combination with a main frame, of means for, anchoring both the rear portion and the forward portion thereof, a supplemental frame guided on said 'main frame for. rectilinear movement along-the same. coal cleavage mechanism free and unobstructed.

3. In a mining machine, the combination with a mam frame having a rear section adapted to be located ad acent a mine wall and a forwardly extending sect-ion adapted to be spaced from the mine. wall, of anchoringmechanism for saidre'a-r section, additional anchoring mechanism for the said forward section, a supplemental frame, coal loo cleavage mechanism attliel forward end of said supplemental frame, and self aeting power means for moving said supplemental frame in advance ofysaid rear section while being guided along the mine wall betweei the latter and said forwardly extending section.

at. In a mining machine, the combination of amain frame, of a supplemental frame, cleavage mechan sm carried by said supplemental. frame, means foranchoring the said main frame, mechanism for moving the sup plemental frame relative .to said'main frame to operate said cleavage mechanism, and

5 means adjustable into position to engagethe mine vein to'guide said supplemental frame along a predetermined path of travel.

5. In a mining machine,.the combination with a main frame, of means for anchoring the same between the floorand the roof of a I mine chamber, a supplemental frame mount ed on said main frame for movement relatively thereto, coal cleavage mechanism Cill' ried by said supplemental frame for bodily movement therewith and adapted to split and, tear a: layer of coal from the, upright wall of a mine vein,.ineans for operating said cleavage mechanism by moving said. supplemental frame relatively to said main frame, and adjust-able guiding mechanism on said supplementalframe in position to engage the mine vein andmove' along the sameapproximately parallel to the path of travel of said cleavage mechanisiny 6; Ina mining machiiie',-the combination 'Wltll a main frame, of a supplemental fi'aiiic mounted. thereon for movement relatively thereto along an upright mine wall, coal cleavage mechanism comprising a plurality of spaced apart point-ed \vedging tools mounted on said supplemental frame for bodily movement therewith, means for moving said. supplemental frame relatively to said main frame to operate said cleavage mechanism by'causing said tools to split coal from the-mine vein over a wide areaextending fromthe floor to the roof of the mine chamber, and a plurality of adjustable guiding devices mounted on said supplemental frame in spaced-apart positions to confine the said coal cleavage mechanism along a predetermined path of travelduring operation. l

l 7. In a miningmachine, the combination with a main frame, of a. supplemental frame, coal cleavage mechanism domprising a plurality of spacedapart digging and wedging tools adapted to rip and tear a-layer of coal from the. mine wall in comparatively large pieces and over a wide area, said coal cleavage mechanism being carried by said sup plemental frame for bodily, movement therewith, means for imparting a, translati ng movement to said suoplemental'frame to eifectthe. operationjof said coal cleavvices adapted 'to engage the floor, roof and Wall of age mechanism, and a, wall. guiding.

mechanism mounted onsaid supplemental frame to move bodily therewith. and with said cleavage mechanism, said gu ding mechanism co'iiiprising a plunger adjustable into position to engage the upright mine wall and slide along the same during the operation'of said cleavage.ineehanism. I

h. A mining machine Coll ipl'lSlll'g a sta tionary frame and 'a movable frame, dis

lodging mechanism mounted on said movable frame to move therewith, means for moving the latter frame rectilineai'ly to operate the dislodging. mechanism along straight lines of travel, and an upright guiding device adapted to be moved into c0ntact with the roof of the mine chamber to slide aloiigthe same during the operation of said dislod-ging mechan sm.

9. A mining machine comprising main and supplemental frames relatively movable, claw-like mechanism comprising a series of spaced-apart digging and wedging fingers mounted on said supplemental frame for inovement therewith in position to rip and tear a layer of coal from an upright mine vein over a wide area. extendingfrom the floor to the roof of the mine chamber, means for operating said claw-like mechanism by moving said supplemental frame relatively operate said coal cleavage mechanism, and

independently operable fluid. pressure de comprising respectively plungers the mine chamber to'g'uide said coal cleavage mechanism into-and alongthe coal vein.

11. A mining machine comprising a frame, spaced-apart coal cleavage devices carried by said frame, power-operated,

means for adjusting the spacing of said devices, and "means for operating said coal cleavage devices.

' I As mining machine comprising. a

frame, coal cleavage devices carried by said frame, power-operatedmeans for adjusting the spacing between said devices, power-op erated mechanism for adjustingthe elevation of said devices, and means for operating said coal; cleavage devices.

13. A mining machine comprising upper and lower spaced-apart cleavage devices,

means for adjusting the spacing between said devices, said adjusting means compris an I . ing a fluid pressure motor having a cylinder "1130 I connected hetween said supp and a piston therein, and an additional fluid pressure motor for ad usting the elevation of said cleavage devlces.

Li. A mining machine comprising a main.

frame, means foranchoring the frame ina mine. chamber between the floor androof thereof, a supplemental frame, a fluid pressure motor having a cylinder on said supplemental frame and a piston rod pivotally connected to said frame, an auxiliary frame piv tally connected to said supplemental frame and adapted to extend alon the root of the mine chan'iher. a. coal splitting device at the forward end of said auxiliary frame in position to move in the plane of the roof. an additional coalsplittine device connected tosaid supplemental frame in position to move in the plane of the floor of the mine chamber, a fluid pressure motor len'lenta'l and space between d thereby ad- Jlitting device,

L auxiliary frames to adpist th said coal splitting devices ust the elevation of the roof s 'and an additional fluid pressi e device hetween the floor and said auxiliary frame to adjus the elevation of both'of said devices particularly the floor splitting device.

15. A minii'ig machine coniprisinga main frame, a supplemental [frame pivotally connectedthereto, a cleavage device carried by said supplemental frame, anauriilaay frame, a cleavage device carried by said auxiliary frame, a. fluid pressure motor for adjusting the spacehetvreen said cleavage devices, and an additional fluid pressure motor coun cted to said auxiliary frame to swing the frame on its pivotal connection with saie supplemental frame.

'16. In a mining machine, the con'ihination with supporting framework. of dislodging mechanism comprising means for penetrating the mine vein and by wedging action split large portions of the mineral from the vein, means for moving the dis-lodging mechanism quickly to its work, and means for operating the dislodging mechanism after reaching its work by moving the same rectilinearly and more powerfullvto eti'ect such dislodgement of the mineral from its nafl. hed. 1 s

17; In a. mining machine. the comhin with supporting framewoi of CliSlOI mechanism mounted thereon and compri penetrating wedging toolsa'dapted to aet on the mineral in its native bed and split portions therefronn apparatus for mo 1 5 said dislodging mechanism IZElDlQllF-T into engagement with the mine vein in readine to in, and hie-ans dislodge thematerial there apparatus to coacting with said moving effect the exertion of said dislodging mechanism to cause said tools to move rectilinearlv along the mine wall to" dislo e material therefrom-by splitting and wedging actions. I

18. Ina mining machine, the combination with supporting frame-work, of coal cleavage mechanism mounted thereon, fluid pressure mechanism folmoving said coal cleavage m chanism q icltl into engagement with coal in the vein, and supplemental fluid pressure niechanism operated automatically to effect a slow and more powerful movement of said coal cleavage mechanism into the coal vein to dislodge the coal therefroml 19. In a mining machine, the combination with main frame, of means for anchoring said main frame in a mine chamber. a supplemental framefcoal cleavage mechanism carried by said supplemental frame and movahlefll'iodily therewith, a hydraulic mo tor connected between said main and supplemental frames for moving the supplemental framerelatively to the main frame to operate said coal cleavage mechanism, means for control ing the operation of said hydraulic motor to move said coal cleavage mechanism into engagement with the coal vein with a comparatively quick movement, and means for automatically effecting a slower and more powerful operation to said hydraulic motor to cause said coal cleavage mechanism to dislodge coal from the vein; V

20. A mining machine comprising sup porting frame-vork, coal clea *age' mecuanism mounted thereon. fluid pressure means the coal and thereafter exerting slower and more powerful force on said coal'clcavagc mechanism to dislodge the coal from the vein.

21. A mining machine, comprising supporting frame-work dislodging mechanism mounted thereon, fluid pressure apparatus for operating said dislodging mechanism, and multiple fluid pressure pumping apparatus for controlling the operation of said dislodging mechanism.

22. A. .mining machine comprising supporting frame-w rlndislodging mechanism mounted thereon, fluid pressure apparatus for operating said dislodging mechanism, and p11eumatically operated fluid pressure pumping appliances for controllingthe operation of said fluid pressure apparatus.

23. A mining machine comprising sup porting frame work. dislodging mechanism mounted thereonya hydraulic motor for operating said dislodging mechanism. a plurality of hydraulic pumps connected to said hydraulic motor, and a. plurality of pneumatically operated motors operable successivelyfor effecting the operation of said pumps.

24(An1inirig machine comprising supporting frame-Work. dislodging mechanism ill pressure pumps connected to said fluid. pressure motor,'. a pair of pneumatically" oper-' ated motors for operating said. pumps, and

a valve in the pneumatic pressuresupply connections for effecting the operation of one ofgsaid pneumatically operated motors after the other i I 251A mining machine comprising supporting frame-work, dislodging mechanism than the plunger-s of the first-named pump,

an additional p'neumatic motor for operating said additional duplex pump, separate pneumatic pressure supply connections to said pneumatic'motors, a Valve in the pneuinatic supply connection to said additional pneumatic motor, and connections for effecting' the operation of said'val'vie upon'ithe pressure'in the connections to said fluid pressure motor reachinga predetermined amount to eflect the operation ofsaid addiftional pneumatic motor after the first-named duplexj'pump has reached a predetermined pressurefby the dislodging mechanism engaging the material to be'dislodg'ed.

26.4% mining machine comprising sup porting frame-Work, dislodging mechanism mounted thereon, a fluid pressure motor for, operating said dislodgmg mechanism, aliqe uid supply tank carried by said frame-Work, A

jmmping' mechanism 'for drawing liquid from said tank and forcing it into said fluid pressure motor, a pneumatic motor 'for' operating said pumping mechanism, additional pumping mechanism connected between said tank and said fluid pressure motor and additional pneumatic motor for op erating said additional pumping mechanism, and means for preventing the, operation of said additional pneumatic motor until after the first-named pumping mechanism has been operated to cause a predetermined fluid pressure to be exerted in said fluid pressure motor'toquickly I'nov'esaid dislodg'ing mechanism, into engagement with the material to be dislodged. p I a 427i A mining machine comprising a main frame means for anchoring said frame, a supplemental frame mounted on said main frame for movement relatively thereto, dislodging mechanism comprising spaced-apart pointed diggingjand splitting tools carried by said supplemental frame to move bodily therewith, a fluid pressure motoiyfor moving. said supplemental" frame relatively to said main frame to operate said dislodging mechanisn'i gloy causing said s'paceda'apart pointed tools. to penetrate the miaevein and tear-the material. therefrom, means for op- .era ting and contronin said fluid pressure 'anotor, said means comprising valve mechanisin, and a one-pointfcontrol on said main frame for operating said valvemechanism. -28; A mining machine comprising supporting frame-Work, dislodging mechanism mounted thereon, a fluid pressure motor for operating said dislod'ging mechanism umping mechanism connected to said fluid pressure motor, a pneumatically operated motor; for operating said pumping mechanism, and an extensible supply pipe connected between the source of-supply and saidpneumatic motor.

' 29. A miningma'chinecomprising aima'in frame, of a supplemental frame, dis-lodging mechanism carried by said'supplemental frame, a fluid pressure motorconnectedbej tween said main and supplemental frames,

pumping" mechanism carried, by] said supplemental frame'and movable bodily thereone point control on themain frame for the operation or said dislo'dginginechanism.

30: n'iinii'igmachine comprising a main frame adapted to occupy a stationary, position, a supplemental frame movable relatively to said main frame, a. plurality of coal cleavagedevices mounted on said supplemental; ii-ame in spaced-apart relation, a plurality of fluid pressure devices for adjusting thespacing and elevation of said coal cleavage devices, a fluid pressure motor for moving said supplemental frame relativelyito said'main frame to operate said coal cleavage devices, fluid pressurepumps connected to said fluid pressure devices and to said fluid pressure motor, afvalve structure carried by said supplementalfi'ame for controllingsaid fluid pressure devices and said fluid pressuremotor independently of each other, anda'plur'ality of extensible connections between said valve Structureand a one point control position on said mainframe.

1 81. A miningmaclnne comprisinga mam frame, means tor anchoring said mainframe between the floor androofiof the mine cham her, a supplemental fra1ne,a fluid pressure motor mounted on said supplemental frame and pivotally connected to said main frame, an. auxiliary frame. pivotally connected] to ,said'supplement'al frame, a. coal cleavage, de vice, carried by said auxiliary frame, an add1- tional coal cleavage device, carried, by said supplementalfran1e,a fluid pressure device for adjusting the space. between said coal supplemental frame to e iii) pivotallyconnected to said auxiliary frame to adjust the'elevationof the coal cleavage device mounted on said auxiliary frame, fluid pressure guiding mechanism carriedby said supplemental frame, fluid pressure pumping mechanism connected to said various fluid pressure motorsiand devices, a valve structure for controllingeach of said motor devices separately and independently, and a plurality of extensible connections between said valve structure and the rear por tion of saidmain frame. 32. A mining'machine comprising a plurality of pointed coal digging and splitting devices arranged in anupright series, means for operating said devices'to penetrate the solidof amine vein andsplit and tearthe coal therefrom, and an upright pushplate fextending diagonally toward the rear'to direct dislodged material away fromthe min wall. 7 r

33. A mining machine comprising a supporting frame, anupright series of coal digging and splitting devices, and anupright wall at the forward end, of said frame in angular position to engage. dislodged materialaud cause the'same to slide along the 7 same away from the mine wall.

'34. A mining machine comprising a supporting frame, means: at the forward end thereof comprising a series ofspaced-apart pointed digging tools in position to dig into the mine vein and split material therefrom I thereto to'leave thespace in advance thereof free and unobstructed. V

A mining machine comprising sup- "porting frame-work, means for splitting material from a mine vein along upright lines, splitting mechanism arranged to move along lines parallel to the bed of the vein at the roof of the mine chamber, and additional splittingmechanism arranged to move along lines parallelto the bed of the mine vein and at the floor of the mine chamber.

36. A mining machine vcomprising supporting frame-work, a roof splitting de-' vice, a floor splitting device, asplitting deice intermediate the, floor and roof and extending in advance of the roof and floor splitting devices in position to engage the coalvein to dislodge material therefrom prior to the engagement of the material by the roof and floor splitting devices, and means for operating saidv splitting devices and directing the dislodged material away from the mine wall.

I the lower extension, said series of splitting v devices mounted on said extensions being adapted to scrape along the floor and roof of the mine chamber.

38. A miningmachine-comprising sup porting frame-work, anchoring mechanism therefor, fluid pressure apparatus for oper ating said anchoring mechanism, and means for operating said fiUlCl pressure apparatus to move the anchoring mechanism quickly to enga ng position and thereafter operating said anchoring mechanism more slowly but with greater power. to anchoring position.

39. A mining machine comprising a supporting fraii'ie, a fluid pressure anchoring device therefor, pumping mechanism connected to said fluid pressure anchoring device, and a pair of pneumatically operated motors having pistons and plungers of varying diameters to effect a quick operation of said fluid pressure anchoring device engaging position and a slower and more powerful operation thereof to anchoring position.

at). The combination with a mining ma: chine comprising supporting frame work, cleavage mechanism mounted thereon, means for operating said cleavage mechanism to dislodge material from a mine vein, of an anchorage adapted to be located a pi'edeter mined distance from the said mining machine. and a long arm pivoted to said anchorfor free and unobstructed movement throughout a complete circle and connected to said machine independently of said oper ating means to direct the machine along any are of said circle on a comparatively long radius. i V i ll. The combination with a self-contained mining machine comprising supporting framework with anchorage mechanism thereon, dislodging mechanism mounted on saic framework, means for feeding said dislodging mechanism againstsaid anchorage 'mechanism actingas an abutment, of an anchorage adaptedfto be located in a mine chamber at a predetermined distance from said mining machine, and a radius arm pivotally connected to said last named anchorage and connected to said machine independently of said operating means to direct the machine along arcs as determined by said radius arm. 1

42, The combination of a complete mining machine comprising supporting framework IUU and .seltscontained operating Qmechan'isin' rendering the machine operable by'itselfto dislodge material from an upright mine wall,

and extraneous mechanism for directing the "path of travel olthe miningmachine along an arcuate path, said ei rtraneous mechanism comprising an anchorage spaced'lirom the mining machine and a directing connection between said anchor-age and said mining maanchoring mechanism, a supplemental frame,

dislodging mechanism carried by said supapparatuses from one position at the main frame. I I

47. A mining machine comprising ,sup porting-- framework, mounted thereon, means for anchoring said framework,- means for operatingsaid cleavage mechanism relatively to said framework while anchored by said anchoring means, additional anchoring mechanism, anda long arm pivot-ally "connected to said additional anchoring mechanism and also connected to said tii'an'iewojrk to direct the path of travel tllBlTGOfffilOllg an arc on the radius of said Warm, the latter and said framework being stationary during the ope cleavage mechanism. 7

48. The combination with a mining machine con'iprising a supporting frame, means ation of said cleavage mechanism plemental :trame, fluid pressure mechanism for anchoring said supporting frame in sta for operating said dislodging mechanism, additional pumping mechanism carried by said supplemental frame, an additional-fluid supply tank carried by said; supplemental frame and connected torsaid additional pumping mechanism, and means for controlling the operation of'both pumping mechanisms. I

A miningmachine comprising afmain frame, fluid pressure anchoring :mechanism therefor, pumping mechanism carried on said main frame and connected to said fluid pressure anchoring mechanism, a supplemental frame, dislodgingmechanism carried by the latter, a l'luid pressure motor for operating said dislodging mechanism, additional pumping mechanism on said supplemental frame and connected to the fluid pressure motor thereon, and means for controlling both pumping mechanisms from one positi-on at the rear o'tsaid main frame.

45. A mining machine comprising 'supporting "frame-work, dislodging mechanism mounted thereon, ailuid pressure motor for operating said "dislodging' mechanism, two pumping devices con'nected'tosaid fluid pressure motor, means for operating said pumping devices, and fluid pressure valve mechanism for controlling the operation Oil said pumping devices one'afterthe other to secure an initial quick movement of the dis lodging mechanism into engagement with the material. of the mine vein' and a subse quent "morepowertul and slower movement while dislodging the material.

4-6. A. mining machine comprisinga main frame, fluid pressure anchoring mechanism therefor, pumping apparatus connected to 'said tlu id pressure anchoring mechanism, a'

supplemental .lrame, afluid pressure motor connected between said main and supplemental i rames for operating said dislodging mechanism, additional pumping apparatus con'nectedjto said "fluid pressure motor, and means torfcontrollingboth otthe pumping ,tionary position," a supplemental frame mounted on saidsnpporting frame for movemcnt relatively thereto, dislodgingmecha nism mounted on said supplemental frame to move bodily therewith, means formoving said supplemental frame togetlierwith said dislodgingmechanism to operate the latter while said, supporting frame remains in anchoredposition, an additional anchorage located :ata predetermined distance from the'mining machine, and a long arm connected between said anchorage and said mining machine to direct the'latteroto new operating positions along an arc'having a comparativelylong radius. 49. A. mining machine comprising upper and lower spaced-apart cleavage devices, power-operated means for adjusting the spacing between said devices, additional power operated means for adjusting-the elevation otsaid cleavage devices, and mechanism for controlling at will said power operated devices. 50. A mining machine comprising spacedapart cleavage devices, self-acting power mechanism for adjusting the spacing between said devices. additional self-acting power mechanism tl'or adjustingthe elevation of said devices, and means for controllingat will :t'rom a distance the operation of said selfncting power mechanism.

- 51. A mining machine comprising a main frame, asupplemental frame mounted on iower mechanismtor ad'ustin theeleva-v i I D tionof said cleavage devices by movement of saidsupplemental "frame relativelyto said mainframe, and means for controlling :at will the operation said self acting power mechanism. j

52. A mining machine comprising a main frame, asupplemental frame mounted therei on for rectilinear movement relatively thereto, spaced-apart coal cleavage devices mounted on said supplemental frame to move bodily therewith, means for swinging said devices as a whole to adjust the elevation thereof, additional means for adjusting the spacingof said devices, and mechanism for controlling at will-both of said adjusting means at a distance from the latter. 7

53. A mining machine comprising a main frame, a supplemental frame, coal cleavage devices on said supplemental frame, means under control of an operator for automatie cally adjusting the spacing between said devices, additional means also under control of an operator for automatically adjusting the elevation of said coal cleavage devices,

and means for operating saidcoal cleavage devices.

54. A, mining machine comprising sup porting framework, means for splitting material from a mine vein along upright lines comprising a. plurality of spaced-apart pointed tools to receive concentrated pressure to cause the same to penetrate the mine vein and split the material therefrom, and

an upright plow having a coal'engaging face I extending diagonally toward the rear to direct dislodged material from the mine wall.

In a mining machine, the combination with a main frame, of a supplemental frame, dislodging mechanism mounted on said supplemental frame, fluid pressure motor mechanism connected between said main and supplemental frames for operating said dieframe and comprising spaced-apart pointed penetrating wedging tools each adapted to penetrate the face of the mine vein and cooperate with the others to dislodge large pieces of the mineral over a wide area from the face of the mine vein, a hydraulic motor betweensaid pivot andsaid supplemental frame, for operating said dislodging mechanism, and pumplng mechanism on said supplement-al frame andconnected to said'motor sure operated anchoring to supply the operating medium thereto;

. 57. In a'mining machine,the combination with supporting framework of fluid-presj acks thereon, pumping mechanismon said framework and connected to said anchoring jack mechanism to supply pressure, medium thereto, dislodging mechanism, fluid pressure motor connect-ed to said dislodging mechanism to operate the same, and additional pumping mechanism connected to said motor to supply fluid pressure medium thereto.

58. In a mining machine, the combination with a main frame, of a supplemental frame, a fluid pressure motor onsaid supplemental frameand comprising a piston rod pivoted to'said mam frame, dislodgmg mechanism on said supplemental frame,

means for adjusting the elevation of said dislodging mechanismwhile said piston rod remains pivoted to said main frame, and

vpumping mechanism on said supplemental frame to move bodily up and down therewith and connected to said motor to supply the pressure medium thereto.

59. Ina mining machine, the combination witha main frame having a rear portion adapted to slide along an upright mine wall while a forwardly extended portion of said frame is spaced from such wall, of an choring mechanism for the rear portion and the forwardly extended portion of said frame, operator-controlled power-operated mechanism on said frame for operating said anchoring mechanism, a supplemental frame connected to said main frame to occupy a position forwardly of the rear portion of said main frame and between the mine wall and the forwardly extendedportion of said main frame, means for operating said dis lodging mechanism, and operator-controlled power-operated mechanism for controlling said operating means.

60. In amining machine, the combination with supportingframework, of anchoring mechanism therefor, ope 'ator-controlled power-operated mechanism for quickly applying said anchoring mechanism and by continuing operation tightening the same more powerfully, dislodging mechanism mounted on said framework, means for operating said dislodging mechanism, and operator-controlled power-operated mechanism to secure a quick application of said dislodging mechanism torits work and upon dislodging mechanism meeting with resistance operating the same slower ut more powerfully. V

61. In a mining machine, the combination with frame, of a piercing wedgingtool pivoted to said frame on a horizontal axis in position to act on the roof of a mine chamber, a fluid pressure motor for adjusting the position of said tool relative to said frame, and means for moving said frame to effect bodily movement therewith of said tool to cause the latter to dislodge material from such roof.

62. In mining machine, the combination with a frame, of coal-splitting mechanism mounted on said frame in position to en 4 ge the coal atthe roof of amine chamber and split the coal therefrom, means for

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