US1328755A

US1328755A - Mining-machine

Info

Publication number: US1328755A
Application number: US747250A
Authority: US
Inventors: Edmund C Morgan
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-02-10
Filing date: 1913-02-10
Publication date: 1920-01-20
Anticipated expiration: 1937-01-20

Description

E. C. MORGAN.

MINING MACHINE.

APPLICATION F/ILED FEB. 10, I9I3- Patented Jan. 20,1920;

5 SHEETS-SHEET E. C. MORGAN.

MINING MACHINE. APPLICATION FILED FEB. :0. 19m.

Patented Jan. 20, 1920.

5 sHEETs-sHEET g.

Patented Jan. 20, 1920.

I 5 SHEET$-SHEET 3- JEEEEEEEIEEIV III.

E. C. MORGAN.

MINING MACHINE. APPLICATION FILED FEB. 10, 1913- E. c. MORGAN.

MINING MACHINE. APPLICATION FILED FEB. I0. ms.

' Patented Jan. 20, 19

5 SHEETS-SHE,ET 4- .E. C. MORGAN.

MINING MACHINE. APPLICATION FILED FEB. 10, 1913.

v Patented Jan. 20, 1920.

5 SHEETS-SHEET 5.

M by

will, therefore, be evident that the particu- EDMUND C. MORGAN, OF CHICAGO, ILLINOIS.

MINING-MACHINE.

Specification of Letters Patent. Patented an. 20, 1920- Application filed February 10, 1913. Serial No. 747,250.

To all whom it. may concern Be it known that I, EDMUND, C. MoRGAN, a citizen of the United States, residlng in the city of Chicago, county of Cook, and

State of Illinois, have invented certain new and useful Improvements in Mining-Ma chines, of which the following is a specifi- .cation.

My invention relates to mining machines of the short wall type, in which'ropes or cables are used for moving the machines to their proper locations and for feeding them along during operation. Heretofore, such mining machines have been provided with feeding mechanism and guiding apparatus comprising winding drums of such small diameter that ropes or cables of small crosssectional area have to be used to secure sufficient flexibility to properly perform their functions and to prevent their being broken or injured within a very short period of use.

In such instances, where heavy duty has.

been required of the feeding mechanism, heavy chains have been used, but-these are cumbersome and ineiiicient, and it is diflicult for the operators to move them about from place to place according to the points of anchorage. To overcome the objections of the small drum rope or cable winding mechanism of the feeding and guiding apparatus, and to overcome the objections to heavy chains, 1 have provided improved rope drum feeding mechanism and rope drum guiding apparatus, wherein the winding drums are of large diameter, preferably of approximately the same diameter as the width of the mining machine. By reason of the provision of the drums of large diameter, the ropes or cables are only slightly bent, thereby prolonging the life of the rope or cable considerably. The construction being such that the ropes or cables are only slightly bent. such ropes or cables need not be very flexible and, therefore, may

be made of much coarser strands than the ropes on the mining machines having small winding drums. Therefore, the ropes or cables on my improved apparatus, embodying the large winding drums, may be used freely without danger of breaking or becoming injured, which increases the efficiency of the operation of the mining machine because avoiding delays due to the breaking of the rope or delays in handling the rope when it is partially broken. It

lar object of-the invention is to provide rope. drum feeding mechanism and rope drum guiding apparatus in which stronger and less expenslve ropes may be used, which will also be more durable and eflicient, and render the operation of the mining machine more efiicient.

A further object of my invention is the -provision of large rope drums approxlmately equal in diameter to the width of the mining machine, so that the ropes eX tending from the drums may pass along the side of the mining machine either forwardly or rearwardly to anchorages, as well as laterally from the mining machine, so that the rope drums may be used for pulling the machines longitudinally forward or longitudinally rearward as well as laterally for feeding purposes.

Another object of' the invention is the provision of freely detachable rope uides adapted to be connected to the cutterar of the mining machine when the machine is to be pulled longitudinally forward, or connected to the rear portion of the mining machine on the other side when'the mining machine is to be pulled longitudinally toward the rear, the rope pulley guide being connected to the rope between the anchorage ing machine toward the anchorage and then guide the mining machine toward the anchorage rectilinearly.

Another object of the invention is the provision of a U-shaped cutter-frame detachably connected to anelongated cutterbar or frame, whereby said U-shaped cutter guide frame, after becoming worn, may be removed and replacedby a new guide frame, while the elongated cutter-bar or frame're- 'mains rigidly connected to the main frame the mining maand the rope drum so as to swerve the min- I of the gearing of the machine taken on the line 66 of Fig. 3,. and represents the speed change gears for the large rope drum;

Fig. 7 is a fragmentary view showing the modifications that may be used in place of a spring for rewinding the smaller rope;

. Fig. 8, to the right and above Fig. 2, is a section of a portion of Fig. 2 on the line 8 8, looking in the direction of the arrows, and represents the chain cutter frame and the means for supporting the same,

Fig. 9, below and to the right of Fig. 2, is a device for connection to the machine and association with the ropes to efiect proper movement of the machine as a whole;

Fig. 10, above and to the right of Fig. 1, is a diagrammatic illustration of the mining' machine making a cut across the face of the wall of the coal or the material being mined;

Fig. 11, below and to the right of Fig. 1, is a diagram illustrating the pulling of the mining machine toward thetruck on which it is mounted for transportation to cations; T v

v Fig. 12, to the right and above Fig. 3, diagrammatically represents the mining new 10- machine starting its cutting operatioif along the face of the wall of the mine;

Fig. 13, below and to the right of Fig. 3, represents diagrammatically the unloading of the mining machine and pulling the same to the point where the cutting operation is a to begin;

' frame of the mining machine stripped of all Fig. 14 represents a plan view of the its parts except the rope drums and the chain cutter frame and sup orts;

Fig. 15 represents the rig t hand end View of Fig. 14 and includes diagrammatically a portion of the gearingv shown in the upper part of the frame on Fig. 3;

Fig. 16 represents a side View of Fig. 14;

and

Fig. 17 is a fragmentary view showing devices, for ,locking the drums together.

It will be seen by referring particularly to Fig. 3, that the fiat bottom mining machine is mounted on the platform 2 of a truck, which is mounted on the wheels 3, the latter being adapted to move on suitable rails of amine track. On the axle 18 of the truck is mounted a bevel gear 5 which is. in

,to the gears 5 and 6.

mesh with the bevel gear 6, the latter being mounted on tli shaft 7 which extends to the forward gearing which is associated with the forward axle. Near the gear wheel 6 is the worm wheel 8, which meshes with the Worm 9. It is understood that the gearing fords a bearing for the end hubs 11 and 12 of the worm 9. The bracket 10 is fastened tothe under surface of the platform 2 of the truck. Extending longitudinally through" the center of the worm 11 is a clutch coupling pin 13 having preferably a square cross section, a flat surface at its upper end and a rounded-surface 14 at its lower end. There is also a lower extension 15 which has an enlargement 16, the upper surface of which is rounded so as to minimize friction when engaged by the lever arm 17 which extends downwardly from the axle 18 and forms an arm of a bell crank lifted provided the bottom 1 of the mining machine is in proper position. This proper position is determinedflin this instance by the rear portion of, the frame abutting against the cross piece 22 on the rear upper surface of the truck platform 2. When the mining machine is in proper position on the platform of the truck, the socket 23 at the lower end of the power driven shaft 24 will be directly over the clutch coupling pin 13. When the latter is moved upwardly into the socket 23, it may beheld in such position by the latch mechanism 20, 21. By reason of the enlargement 16, the clutch coupling pin will always be maintained in proper position and can be moved down positively when it is to be released from the socket '23.

In order to hold the mining machine in place on the truck, the rope indicated by dotted lines 28 in Fig. 2 is provided with a hook 25 for engagement with an eye 26' at the upper end of the bracket 27 which is fixed rigidly to the cross piece 22. By referring to Fig. 4, it willbe seen that the vertical bracket 27 is located at one end of the cross piece 22 because the rope and the hook and eye connection are to be used principally for moving the machine onto the truck. In order to bring the mining machine more accurately and definitely to the position on the truck where the socket 23 will be directly over the clutch coupling pin 13, longitudinal guide strips 29, 29 may be provided, as shown in Figs. 2 and 4. These guide strips are located on the upper surface of the truck and engage the lateral sur .faces of the mining machine frame to guide it longitudinally on the truck so that when the mining machine abuts against the cross piece 22 the socket-23 will be directly above the clutch coupling pin 13. Now, when- 7 ever the electric motor 30 is operated in one direction or the other, its beveled Pinion 31 will transmit motionoto the large bevel gear 32 which in turn will transmit motion to the vertical shaft 24, since the large gear 32 Therefore, when the.

is keyed to .said shaft. motor is operating and the clutch coupling in 13 is moved into the socket 23, motion will be transmitted to the truck wheels to effect transportation of the truck and the mining machine in one direction or the other along the mine track dependingon the direction in which the motor has been operated. The motor may be provided with a controller box which is diagrannnatically illustrated at 33 in Figs. 1 and 2'. The motor may be reversed by operating the lever 138, and started and regulated in speed by operating the lever 141.

Projecting from the forward lower portion of the frame of the mining machine and rigidly connected to said frame is a cutter frame support 34, shown in section in Fig. 3 and in plan in Fig.14.' A section on line 88 of Fig. 2, looking in the direction of the arrows, is shown in Fig. 8. The cutter frame35 hasan interlocking connection at 36, 36, with the lateral faces of the longitudinal extension 34. The cutter frame, as shown in Fig. 14, comprises two lateral parts which are the interlocking members, and aforward semi-circular portion 37, which is bolted to the lateral interlocking members at 38, 38. Connected'rigidly to the inner face of the semi-circular portion 37 by means of the lock nut 139 '(Fig. 3), is a screwthreaded rod. 39 which extends rearwardly through the cross piece 40 at the outer end of the cutter head 34. The screw-threaded rod 39 may extend some distance into the outer end of the cutter head 34, as shown by the dotted line 41, so as to secure a greater latitude of movement of the chain cutter frame 35. On the screw-threaded shaft 39 are the nuts 42 and 43, one being located on one side of the cross piece 40 and the other on the other side thereof. lVhen the nut 42 is moved rearwardly and the nut 43 tightened up, the chain cutter frame may be moved of the chain 44 (see Figs. 2 and 14). This structure, including the elongated bar 34 connected rigidly to the framework and the U-shaped detachable chain guide frame 35 adjustable longitudinally on the lateral edges of the bar 34, together with the adjusting mechanism mounted at the outer end of the bar 34, I have; described and claimed in my copending application Serial No. 196,294, filed October 12, 1917, for an improvement in mining machines. The chain cutter is mounted on sprockets which run in interlocking grooves 45, 45 in the guide frames or chain cutter frames 35, 35 and the forward circular portion or frame 37 (see F ig. 2). The sprocket chain carries a plurality of sockets 46, in which are held the cutters 48 by means of the set screws 49. as

sh wn in Fig. 2.

outwardly to increase the tension,

chain cutter frame having an interlocking connection at 36 with the cutter-head 34, as shown in Fig. 8 This

U-shaped frame

35, 37 is removable and therefore when it becomes worn it may be replaced by a new U-sliaped frame, while the cutter-head 34 remains intact. This arrangement also lessens the cost of construction, because the cutter-head 34 may be made of cast iron whereas the parts which take the wear of the traveling chain cutter must be made of such material as steel. The arrangement is therefore of advantage not only in the first cost of constructiombut also as to the expense of maintenance. The U-shaped frame is purposely made elongated sothat it may take the wear of the chain throughout the entire run of the chain where suchwear will occur. The sides of the guide frame 35 at thev rear ends thereof are in alin'ement with the periphery of the sprocket wheel, as shown in Fig. 2. The cutter-chain is there fore supported entirely "by the sprocket wheel 50 and the detachable elongated U-shaped guide cutter-

frame

35, 37. On account of the removability of the

U'shaped frame

35, 37 it may be held in adjusted position relative to the elongated cutter-head 34 so as to adjust the slack in the cutter chain.

The chain cutter extends rearwardly around the sprocket -wheel 50. which is mounted loosely on the vertical shaft 24 (Fig. 3), but its upper surface is provided with clutch teeth so that when the clutch 51 is moved down, driving connection will lines in Fig. 2. At one end of the rock shaft 53 is connected an actuating lever 55 which extends upwardly to an opening 56 in the upper horizontal portion of the frame of the mining machine as shown in Figs. 1 and 2. Therefore. when the manual lever 55 is actuated to the right, as viewed in Fig. 1, the clutch 51 will be moved down into engagement with the teeth on the upper side of the sprocket 50; if the motor is now in operation, motion will be transmitted to the cutter chain through the pinion 31, gear 32, shaft'24, clutch 51 and sprocket 50. The motor should be started in the proper direc tion according to the position of the cutters 48. Q Q

Referring now to Fig. 3, it will'be seen that a horizontal support 57 is provided for the various parts associated with the vertical power driven shaft 24. This. support.

57 is rigidly connected to the inner front and rear walls of the mainframe of the mining machine, as indicated at 58, 58.- At the central portion of the horizontal support is an annular depression to receive the circular plate 59, which loosely surrounds a shown the shaft 24, the worm 60 keyed thereto and the gear 63 which, as shown in Fig. 3,

i is always in mesh with the bevel gear wheel 62. The plate 59 is provided with a bracket varm 64 for supporting the bearing 65 in 1 which is journaled one end of the short shaft 66, the other end of which is journaled in the bearing 67 which is supported directly above and on the plate 59. The plate 59 is cut away at 68 to permit" free rotation of the bevel gear63. .To the bevel gear 63 is connected-the worm 69, which is mounted on the shaft'66. Preferably, the short shaft 66 is securely fastened to the end supports and the gear 63 and the worm 69 rigidly connect- I ed together and oth loosely journaled on the shaft 66. I

' Meshing w'ith'the vertical worm 60 is a worm wheel .70, whichis keyed to the shaft 71, one end of which is jonrnaled in the hearing 72 which is ca'rried by the bracket 73, mounted onjthe plate 59. The shaft 71 on the side of the worm-wheel 70 opposite the bearing 72 is somewhat enlarged, as shown at 74, and is journaled in the long bearing 75 which is supported by the bracket 76, mountto turn the worm 77 ed on the plate 59. To the outer end of the shaft'74 is keyed a 'worm 77. Therefore, whenever the shaft 24 is rotated the worm 60' and theworln wheel 79' will be operated To the forward inner wall of the main frame of the mining machine at 58 is rigidly connected a horizontal bracket 78, which carries a bearing 79 for the auxiliary shaft 80"which-.is shown mounted in vertical position in Fig.3. Keyed to theuppe'r portion of shaft 80 below. the bearing 79 is 'aiwo'rm wheel 81. The ,lower end of the vertical shaft 80 extends into a recess 82 which forms a step bearing for said shaft, and also a journal bearing.

'By referring to Fig. 2, a will be seen" that a manually operable. lever 83 islocated on the upper side of the main frame of the mining machine. This lever is connected to a vertical rock shaft 84 which is mounted in bearings 85 and 86, as shown in Fig. 1. To the lower end of the vertical rock shaft 84 is secured a lever arm 87 to which is pivoted one end of the link 88, the other end of which is pivoted at 89 to the lever arm 90 which is a horizontal plate or bracket extending from-the bracket 76, as shown in Figs. 1 and 6. It will now be evident that when the manual lever 83 is actuated the lever arm 90 may be shifted in one direction or the other and thus oscillate the plate 59 and the parts. carried thereby. This will throw either the worm 69-or the worm 77 into engagement with the worm wheel 81. The gearing issuch that when the worm 69 is thrown into engagementwith the worm wheel 81 the shaft 80 can be rotated at a comparatively high rate of speed, that is, as compared w th the speed produced by throwing the gear 77. into mesh with the worm Wheel 81. The gearing ratio when the worm 69 is in mesh with the worm wheel 81 is such as is consistent with the greatest speed that can be used in practice for moving'the entire mining machine to or from its work, or from place to place in the mine, or to and from the truck. i

It will be seen, 6, that when the the worm wheel 81 and the electric motor by referring to Figs. 3 and is actuated, motion'will be transmitted by,

worm 69 is in mesh with means of the

gears

31, 32, 62, 63, worm 69 and worm wheel 81 to the vertical shaft 80. \Vhen the worm 77 is thrown into engage me'ntwith the worm wheel Sland the motor is operated, motion will be transmitted to the vertical sh'aft80 by means ofthe gears 31, 32, 60, 70, 77 and 81. It will be seen,

however, that because of the worm gearing 60,70, the shaft 80 will be rotated at a much I I lower rate of speed than when the gear 69 meshes with gear 81. As .will be hereinafter explained, when a very slow feed of the may .chine is desired during the cutting operation," 1 the worm 77 is brought into play, but when the machine is 'to' be moved about without loss of time then the worm 69 is brought into play to effect a much uicker operation.

The rope drum meilh proved scribed. Depending from the horizontal supporting plate .57, 79.16 a plurality of brackets 91' whichreceive the-lower ends of amsm of my im-' mining machine will now be de-" the pins 92,-]the heads 93 of which rest on the upper surface of the plate 57. On these pins '92 are journaledthe circuniferentially grooved anti-friction rollers or disks 94 and 95, as shown in'Fig.i. 2 in dotted lines and in .Fig. 3 in run; lines.- The circumferential the annular" grooves of these disks receive flanges 96 and '97 'ofthe rope drums .98 and 99, respectively.' It will reason of this construction the be'seen that. by

drums 98' and 99are supported out of contact with eachother and in contact with no other parts, except that the flanges 96 and 97, of

in Fig. 3. This spring. serves as a retracting spring which will automatically rewind the rope 101 thereon when the drum 98 is released.

It should be noted that. each of the rope winding drums 98.and 99 is provided with a circular centralopening so as to provide an open annular space or clearance for the auxiliary vertical shaft 80 to pass through the rope drums without interfering with the 'rotation' of the latter. This arrangementenables the auxiliary shaft to be located between the

bearings

79 and 82 and the use of the pinion 104 meshing with the internal annular gear 103 of the rope drum 99. The rope drums may be supported by i 'the spaced apart grooved rollers, as shown in Figs. 2 and3. It will also be seen that by reason of the fact that the drums are in reality rings with circular openings there through, the clutch .element 51 may be lo carted 0n the vertical drive shaft 24c witlii1i the lower drum, and the circular bearing plate 59 together with part of the horizontal support or partition, may be located within .the space of the upper drum 98, thereby affording a very-compact arrangement for the feeding and retarding mechanism, while at the same time providing means for transmitting power at will to the cutter-chain of the horizontal ul'ide-r-cutting kerf-cutterf a The rope 101 is a comparatively light one, but of sufficient strength to perform its function. The rope102 on the drum 199 is a comparatively heavy rope asit lmust be much stronger to perform its function than the rope 101. One end of the rope 101 is securely fastened to the drum 98, v and likewise one end of the rope 102 is securely fastened to the drum 99. On the innj'ersannular surface of the drum 99 is an internal; gear 103 with which meshes the pinion- 104; which is keyed to the lower portion of the" vertical shaft 80. Therefore, whenever the electric motor 30 rotates the vertical'shaft 80, the pinion 104 will transmit motion to the drum 103 either very slowly, or more rapidly, depending'in which direction the plate 59 has been shifted. that is, whether the worm 69 or the worm 77 has been brought into mesh with the worm wheehSl. The

drum 98, however, being in no way connccted to the gearing, is never positively driven by the motor under the., usual conditions of operation. The rope 101 on the drum 98 may be pulled manuallyto wind up the spring 100, but under some conditions thespring may be wound up indirectly by the motor as when'the end of the rope 101 is held fixed in a certain position, and the entire mining machine is moved bodily, By means of the modification shown in Fig. 17 the rope 101 maybe rewound directly and positively as the keys 142,1l2'lock the drums 98 and 99 together. Preferably, a number of opposed keyways are provided on and between the flanges of thedrulns 98'and 99 so as to-facilitate the locking together of the drums at the most convenient noint. I It should be particularlyobserved that the rope drums are of comparatively large diameters, thus preventing the rope from being bent any more than a comparatively small amount, thereby prolonging their'life con-,

that the rope 10:2 extends to the rear as shown by the'dotted lines 28 in Fig. 2, a roller 104 being provided on the side of the mining machine body to direct the rope in the proper direction. This rope has ahook 25 which engages the eye 26 on the bracket 27 at the rear of the truck when the mining machine is mounted on the latter. I

Fig. 13' diagrammatically illustrates the lnanner. in which the machine is unloaded ropes are entirely wound up thereon except.

from thetruck. The larger rope 102 is unhookedfrom the eye 26 and connected at 25 to an anchorage near the face of the mine wall which is indicated by the dotted lines 105." 8 Now, when the operator actuates the lever 83, the worm 69 or the worm 77 may bexthrown into engagement with the worm wheel 81, depending on whether the mining machine .is to be unloaded quickly, orslowly and more carefully. In this connection, it should be observed that the throw of the lever 87 as indicated by the arcshapedli ne 106 in Fig. 6 is such that whether thegar-773or the gear 69 is shifted into operating relation with the worm wheel 81, the lever87will be thrown on dead center ,withrespect to the vertical shaft 84 and the link 88. Therefore, when the manual --1ever-83' has once been shifted, it may be left there without manually holding it, as the resistance or reaction on the link 88- cannot move the .1ever87.-

Assuming that the end of the rope 102 is firmly anchored at -25' and the motor 30 is operating to turn the large drum 99 in the direction indicated by the arrow 107 in Fig.

13, themining machinemay be pulled off attachment which is shown in Fig. 9.

the truck and moved to the place where it is to be used, provided the machine is properly guided. Since the pulling occurs tangentially of the drum 99, the tendency might be for the machine to turn about and not be moved directly forward in the path indicated by the arrow 108. Therefore, in order to assure the movement of the machine forward in the straight path indicated by the arrow 108, I have provided a rope guiding This rope guiding attachment comprises a hook 109 which is adapted to be inserted in suitable openings provided therefor. On the flat bar 110 extending from the hook 109 is a pulley block 111 carrying a pulley 112. The pulley block 111 fits over the bar 110 and is. slidable along the same to various positions over the holes 113 therein into which can be inserted the pin 114 which also extends through holes in the pulley block.

' By this construction, the pulley block may be held in an adjusted position on the bar 110 as may be desired under different conditions,

In Fig. 2 the adjustable rope pulley guide is shown in full lines at the rear portion of the. machine and the hook 109 extends through suitable openings 115 (Fig. 3) in the side wall of the'rear portion of the frame-work'of the machine. In Fig. 2 the rope pulley guide is also shown in dotted lines at the front portion of the machine.

' It is shown in dotted lines as being hooked to" the outer end of the tongue 34 ust back of the cross piece 40 in the opening 115 which is shown also in Fig. 14. In Fig. 13,

the rope pulley guide is shown connected in the opening 115 to.the outer end of the cutter chain frame support. It will now be evident that when the motor is operated to wind thev "rope 102 onto the drum 99 under the conditions represented in Fig. 13, the tendency for the machine to turn about while being unloaded from the truck and moved, tothe wall of the mine willbe counteractedby the rope pulley guide andthe result will be that the machine will move forward in' a straight path indicated by the arrow 108. When the mining machine is to be pulled I back onto the truck, the hook 25'is connected to the eye 26 and "the freely detachable ropepulley guide 110 is connected to the framework or supporting frame of the mining machine by extending the hook 109 through the openings 115 shown in Fig. 3. The rope pulley guide 110 will then be associated with the rope 102 at a point intermediate the periphery of the winding drum 99 and the anchorage 26, as illustrated in Fig. 11,, particularly when the mining machine is 'pro- 1 vided withga supporting frame which is en-v tirely open at the sides, as shown in Fig. 1. When the'drum 99 is rotated in the direction mdlcated by the arrow 116 in Fig. 11, a pull the location of the rope pulley guide 110,

will cause the mining machine to swerve about until the rope between the drum 99 and the anchorage 26 becomes approximately straight, after which the rope pulley guide 110 will travel along the rope 102 so as to move the mining machine approximately rectilinearly and longitudinally of the mining machine toward the rear thereof It should be noted that the direction of rotation of the drum 99, asillustrated in Fig. 11, when the mining machine is to be moved rearwardly, is the same as. illustrated in Fig. 13 when the miningmachine is to be moved forwardly. It will also be seen by referring to Figs. 10 and 12 that the drum 99 rotates in the same direction as in Fig.

11, when the mining machine is to be fed for a sumping cut, as illustrated in Fig. 12, or

for a cut across the mine wall, as shown in Fig. 10. The reason that the same 'direction of rotation of the winding drum 99 may be maintained for the various operations .referred to, is that-this winding drum is approximately of the same diameter as the width of the mining machine supporting frame with the upright axis of rotation of the drum midway between the sides of the mining machine. This arrangement ena'bles the rope 102 to be tangential with the winding drum 99, both when it extends forwardly from the side of the machine, as

, shown .in Fig. 13, and when it extends rearwardly from the side of the machine, as shown in Fig. 11. As to the other drum 98, the same is true when the latter is positively driven by being keyed to the drum 99. I 105 However, the large diameter of the retarding drum 98 greatly widens the range of the anchorage to which the rope 101 can. be

connected, because this rope, on account of the large diameter of the drum 98, can-be connected to an anchorage directly back of the left-hand side of the machine, as viewed in Fig. 12, or to an anchorage at any place spaced from the left-hand side of the machine to a position diagonally spaced from the forward portion of the frame. Furthermore, the rope 101, as shown in Fig. 10,- may be connected to anchorages over a considerable range on the other side of the mining rope 102 is anchored at- 117 near one end of the wall of the coal that is to be cut. The lighter rope 101 is anchored at 118 near-the mesh with the worm gear 81, the vertical shaft 80 and consequently also the large drum 99 will be rotated Very slowly to very gradually wind up the rope 102 in the direction of the arrow 119. The operator also actuates the lever 55 to throw in the clutch 51 .and thus secure rotation of the sprocket 50 and the movement of the chain cutter in the direction of the arrow 120 in Fig. 12.

It is preferable to hold the drum 98' in fixed position when starting the cutting operation, as diagrammatically illustrated in .Fig. 12. I have, therefore, provided a brake for the drum 98 to hold it in position after the rope 101 has been anchored at- 118 and the spring 100 has taken. all slack out of the same. This brake mechanism is illus trated in Fig. 1 and comprises a brake shoe 120 adapted to engage the peripheral surface of the drum 98. This brake shoe is brought into engagement with the drum 98 by actuating the eccentric 131 at the lower end of the vertical rock shaft 121 by means of the lever 110. The "ertical rock shaft 121 is mounted in the bearings 122 and 123, the

- latter being mounted on' the fixed bracket chine. along the face of the wall of the mine.

During this cutting operation the mining machine remains substantially perpendicular to thewall of the mine. that is, in the relative position illustrated in Fig. 10. As soon as the cut into the 'wall of the mine has been well started, or when the cutter has been inserted as far as itwill go, the

brake lever1l0 is actuated to release the brake, and the lighter rope 101 isdisconnected from its anchorage 11.8 and anchored "at 117 instead. The heavier 'ro'pe. 102 is disconnected from the anchorage 117 and an- "chored at 118. It will, therefore, be seen that the ropes are interchanged with respect to their anchorages. The machine, should move sidewise in the direction of the arrow 125 in Fig. 10. The electr c motor is operated in such direction that, when the clutch 51 is thrown in. the cutter chain will be moved in the direction of the arrow 126 of Fig. 10. By actuating the lever 83, the slow gearing may be thrown in and locked in place by the dead center arrangement. of

the lever 87. The large drum 99 will then Fig. 10 illustrates the location of the ropes when a cut is being made by the mabox 33 may, howex'er, be provided with reversing mechanism 138. which is desirable for moving the truck in either direction. and also under such conditions where it may be-desirabie to positively unwind the rope 102 so that this will not have to be done manually.

It should be observed that when the cutting operation illustrated in Fig. 10 is being performed, it is preferable to keep the brake mechanism for the drum 98 partially applied to permit slipping while maintaining the body of the machine perpendicular to the wall of the mine. By this operation, the periphery of the drum 98 will constantly slip under the brake shoe 120. Or, if desired. the brake may be firmly applied until the forward portion of the machine skews to a certain extent to the left, as viewed in Fig. 10, after which the brake may be en tirely released until the rear portion ofthe machine skews a certain extent to the left. This operation would cause the machine to slide over the floor of the mine in zig-zag fashion.

The rope 101 will gradually unwind from thedrum 98 as the mining machine progresses along the wall of the mine. The pull exerted on the rope 102 tends to skew the rear end of the mining machine in the direction in which the cut is being made. that is, to the left as viewed in Fig. 10. This is because of the resistance that the cutters meet when they strike the coal. The coal acts as fulcrum as would be evident if the cutter chain were not operated at all while the rope 102 would be gradually wound on the large drum 99. Therefore, in order to preventthis tendency of the rear end of the machine to skew in the direction of the cut, the rope 101 acting on the other side of the drum 98 constantly pulls the rearend of the machine in the opposite direc-ttion; the large drum 98 increases the leverage for this purpose. The adjustment is such that the tendency for the rear portion of the machine to skew is counteracted by the pull on the rope. 101, and therefore the cutters are maintained in proper position and the machine as a whole is moved gradually to the left approximately rectilinear-1y. as indicatedby the arrow 125 in Fig. 10. In some instances. where the drag of the. bottom of the rear portion of the machine on the mine floor is sufficient. the brake mechanism and the rope 101 need not be used. I

Vhen desired. instead of depending upon the spring 100 for rewinding the rope 101 on the drum 98. manual mechanism may be employed as illustrated in Fig. 7. As there illustrated. a crank 128 supported by the plate 57 carries a pinion 129 which meshes with the internal annular gear on the peripheral flange of the drum 98. It is evident 130 so as to change the gearing to fastvfeed. This is done by'movi'ng the worm 69. into engagement with the worm wheel 81 .and

' truckas illustrated in Fig. 11 and taken to" looking it in place by the lever .87 passing through or beyond the dead center. If desired, the mining machine may be moved to a new location by means of the heavy rope and its drum mechanism.

It will thus be 'seen that the heavy rope is depended upon to pull the machine from place to place, and the lighter rope is de-'.

pended upon to properly guide the machine. It should The observed that when the ma chine is' being moved to a new location and no cutting operation is taking place, the machine-is moved rapidly so as not to cause anywaste of. time; the clutch 5 1 is thrown out at such time to save power.- If desired, after the cutacross the wall of the mine is made, the machine may be loaded on the.

another part of the mine.

In order to protect the ropes at the points where they emerge from the main frameof the machine when the ropes are anchdred atvarious angles toisui't different conditions of operation, guide rollers are provided, as

shown in Figs. 14,15 and-16. 'The lighter rope 101 emerges from the frame'of the-ma chine to the opening 132 and 'then passes over the guide roller 133, which is journaled in bearings extending from the latei gil faceof the mining machine frame. .-;.Th'e rope 101 may, therefore, be inclined iii-various directions without coming in conta'ct'fwith the frame of the machine. When thero'pe 101" is permitted to recede into the shell "or frame of the mining machine and is then anchored on the other side. of thefmachine, it will'extend over andbe guided by. the,

roller 104:. as shown in dotted lines in" Fig. 14. The heavy rope 102 passes ovena guide pulley 136 when it emerges from the front portion of the machine, although the frame of the machine is entirely open at that point. Such a guide pulley on. the frame of the machine is unnecessary when the machine is being pulled directly for-j i" ward, as illustrated in Fig. 13. When the machine is being operated under the condis tions of Fig. 12, however, and themachine is being skewed about to a position perpendicular to the wall ofthe mine and with a cutter fully inserted, the roller 136 is depended upon properly guide the heavier rope and prevent its being injured by the frame of the machine,- "When the conditions shown in Fig. 10 obtain, the lightercrope 101 will be guided overlthe pulley or roller 133, as shown in Figs. 14, 15 and 16. Under these conditions theheavier rope will be guided over the pulley or roller 137, as shown in Fig. 15. When the frame of the mining machine is entirely open at the sides, as shown in Fig. 1, the guiding

pulleys

104, 133, 136 and 137 may be dispensed with, except that shown in Fig. 9. After the. mining machine has been replaced on the truck and the socket 23 brought immediately above the clutch'coupling pin.

13, the fnotor may be operated to effect transportation of the mining machine to another part of the mine. The means for securing positive actuation inthe same, directlon of both axles 18, 18 is shown diagrammatically in Fig. 5, which is a plan view of the truck gearing. The worm 9. which carries the square pin 13meshes with the worm wheel 8 which is shown in dotted lines in Fig. 3, back of the worm 9. When motion is given to the shaft '1 which is mounted inthe bearings 10,10, the

bevel gear

6, 6" will be r tated, -and,'since .they are in mesh'with the bevel gears 5, 5., the axles 18, 18w'ill both be rotated. If a motion is given to the shaft 7 in the direction indicated by the arrow thereon, thelaxles 18, 18' will be rotated in the directionsindicated by the arrows on the latter and the truck will be moved forward. A reverse rotation of the. shaft 7, by reversing the electric motor 30, will effect a rearward movement of the truck and the mining machine thereon.

Having thus described my inventionby settingforth an embodiment thereof, what I claim and desire to havesecured by Letters "Patent of the United States is 1. 'The combination with a mining ma-' chine, of feeding mechanism therefor comprising a'rope drumand a rope connected thereto, a freely detachable rope pulley guide adaptedto be hooked to various parts of the-frame of said mining machine, and power mechanism for operating said feeding mechanism to effect longitudinal bodily 'movem'ent'of said mining machine when. said rope passes through said pulley.

guide and its free end is anchored at a distance from said mining machine. 2. The combination with a mining machine, ofrope-winding apparatus connected thereto, a rope connected to said winding apparatus, and a freely detachable rope guiding device adapted to be detachably' hooked to therear portion of the frame of said mining machine to 1 effect bodily. movement thereof. longitudinally off from a mine ear when the free end of said'rope is anchored in themine and said winding apparatus is operated, said rope-guiding device being "adapted to be detachably hooked also to the forward portion of the frame of said ing drum and wound thereon, and a l 1 5 -be connected to Various portions of said minmining machine to effect bodily movement thereof longitudinallyonto the mine car when the free end of said rope is anchored ing machine to guide the rope when the free end of said rope is anchored and said winding apparatus is operated.

"4:. The combination with a mining machine, of a truck for carrying the same, an

. anchorage at the rear end of one side of said trucli, windingapparatus mounted on said m mmg' machine and comprising a rope winding drum having a large diameter approximately equal to the width of said miningmachine and with its peripheral edge traveling at the sides of said mining mafchine,

ing a rope connected to said drum and wound thereon with'its free end adapted to I said windingapparatus also compr1s be connected to said anchorage, and a freely detachable rope guide connected to the rear chine,

from said portion of said miningf'machine to effect 1ongitudinal travel of said mining machine onto said truck when said mining machine is operated while said rope guide engages the straight taut portion of said rope extending drum along one 'side of said mining machine to saidanchorage.

5. The combination of a mining machine,

a truck for carryin .the same, an anchorage on sald truck, win I I inga rope drum mounted on sald mlnlng ing apparatus comprism-achine and having a large diameter -ap- I proximately equal to the width thereof andv a rope connected to said drum and wound thereon, its free end being connected to said anchorage, and a freely detachable ropes guiding device hooked to the rear portion of said mining machine and associated with said rope betweensaid drum and said anchorage to effect the movement of the mining machine in an approximately direct line onto said truck'when said winding apparatus is operated, I

6. The combination with a mining maof winding mechanism mounted thereon comprising a rope drum of a large diameter approximately equalto the width of said mining machlne and a rope connected to and wound on said drum,'and a ropeguiding device connected to said mining machine quickl detachable manually but when in position eing associated with said rope to swerve the milling machine into a path of travel parallel to the rope between said ropeguiding device and the anchorage to which the free end of said rope is connected.

7. The combination with a mining machine, of a rope drum mounted thereon having a large diameter approximately equal to the width of said mining machine, power mechanism'foroperating said drum, a rope connected to said drum and wound thereon and having its free end adapted to be connected'to an anchorage at a distance from said mining machine, and a single ropeguiding device detachably and loosely mounted on said mining machine and extending therefrom to co-act with said rope to effect a sidewise pull on a portion of said mining machine to automatically swing the latter to a longitudinal path of travel when the outer end ofsaid rope is anchored and said power mechanism operates said drum.

8. The combination with a mining machine, of feeding mechanism therefor comprising a rope drum, a rope connected to and wound on said rope drum, power mechanism for operating said rope drum,. rope drum winding mechanism comprising a rope drum and a rope connected thereto and wound thereon, the free end of said first-named rope being adapted to be connected to an anchorage opposite one side of said mining machine and the free end of the other rope being adapted to be connected to an anchorage opposite the other side of said mining machine, and a spring acting on said rope drum winding mechanism to automatically rewind its rope drum when its rope is released from its anchorage.

9. The combination with a mining machine, of means for exerting a pull .on said mining machine at an intermediate portion thereof to feed the same laterally, a rope drum device for retarding the rear portion of said mining machine during its feeding operation, said rope drum device comprising a rope drum and a rope connected thereto, wound thereon, and having its free end adapted to be connected to an anchorage at a distance from said mining machine, abrake acting on said rope drum to regulate such retardation and thereby control the lateral .feeding of said mining machine, and a spring the rope on said rope drum.

for re-winding 10. The combination with a mining ma chine, of feeding mechanism therefor,ahor1- zontal support in said mining machine, grooved rollers carried'by said support, a rope drum device, an internal annular flange on sand drum device and fitting I into the grooves of said rollers so as to be supported rotatively thereby, and means for controlling the operation of said rope drum device as to winding and rewinding.

11. The combination with a mining machine, of feeding mechanism therefor,ahor1- prising zontal support on said mining machine, a horizontal drum of diameter approximately equal to the internalwidth of said mining machine, grooved rollers carried by said horizontal support, and an internal annular flange on said drum and fitting into the 13. The combination with a mining ma-' chine, of feeding mechanism therefor comprising a rope drum and a rope connected thereto and wound thereon and having its free end adapted to be connected to an anchorage in the mine, an additional rope drum and a rope connected thereto and wound thereon and having its free end adapted to be connected to another anchorage in the mine, said additional rope drum being mounted independently of said first named rope drum, means for controlling the rotation of said additional rope drum i11- dependently of said first named rope drum to secure lateral feeding motion of said mining machine during the operation thereof and during the operation of said feeding mechanism, and a spring connected to said additional drum to automatically rewind the rope thereon when released from its anchorage.

14. The combination with a mining machine, of feeding mechanism therefor comprising ahorizontal rope drum of a large diameter approximately equal to the width of said mining machine, an additional horizontal rope drum of approximately the same large diameter as that of said first named rope drum, and a spring connected to said additional rope drum tending to rewind the rope extending therefrom.

15. The combination with a mining machine, of feeding apparatus therefor coma rope drum of a diameter approximately equal to. the width of said mining machine, a rope connected to said rope drum,

power mechanism for operating said feeding apparatus, retarding mechanism comprising an additional rope drum of equaldiameter separate from said power mechanism and mounted concentrically with said first-named rope drum but for rotation independentlythereof, a rope connected to said additional rope drum and wound thereon and extended therefrom to an anchorage in the mine, and a key fitting in opposing recesses in the peripheral portions of said drums for compelling their simultaneous rotation.

-16. The combination with a mining mavtween said drums to secure chine, of a horizontal rope drum mounted thereon, a rope connected to said rope drum and wound thereon and extending directly therefrom to an anchorage in the mine, an additional rope drum, ,an additional rope connected to said additional rope drum and wound thereon and extending directly therefrom to another anchorage in the mine, means for positively rotating one of said drums while the other drum remains free of such means, and a spring for retarding the unwinding of the rope from such other drum.

17. The combination with a mining ma' the operation of said feeding mechanism,

rope drum and I and locking mechanism for connecting said rope drums to effect the positive actuation of said additional rope drum to return the mining machine toward initial position when said first named rope is released from its anchorage and the feeding mechanism continued in operation.

18. The combination with a miningmachine, of feeding mechanism therefor comprising a rope mechanism comprising an additional rope windingdrum, and a radial kev engaging the peripheral portions of said drums for locking the same to rotate together.

winding drum, retarding" 19. The combination with a mining machine, of feeding mechanism therefor comprising a horizontal rope winding drum of a diameter substantially equal to the width of the mining machine, means for positively driving said drum, another rope winding drum of substantially the same diameter as the first named drum and mounted on said mining machine concentric therewith, a spring for retracting the said other drum, a brake associated with said other drum to control the rotation thereof against the action of said spring when the feeding mechanism is operated, and a locking device bepositive rotation of the said-other drum.

20. The combination with a mining machine comprising cutting mechanism'and a power driven shaft connected to said cutting mechanism, of feeding apparatus comprising a rope drum concentric with said shaft and approximately equal indiameter to the width of said mining machine, arope connected to said drum and wound thereon and adapted to extend laterally from said drum or along either side of said mining machine from the periphery of said drum, a second rope drum concentric with said shaft and also of a diameter approximately equal to the Width of the mining machine, an additional rope connected to said second rope drum to be wound'thereon and extend from the periphery'thereof along one side of said mining machine, and retarding mechanism applied to said second rope drum.

21. The combination with a mining machine comprising cutting mechanism and a Vertical power driven shaft connected to said cutting mechanism, of feeding apparatus comprising a rope drum of large diameter approximately equal to the width of the frame of said mining machine and mounted concentrically with said shaft, a rope wound on said .drum and extending rearwardly along one side of said mining machine frame to an anchorage when said mining machine is to be shifted rearwardly, said rope being I connected to said'drive also adapted to extend forwardly along the other side of said mining machine frame to an anchorage when said mining machine is to be shifted forwardly, said rope being also adapted to extend laterally from said mining machine frame to an anchorage when the'mining machine is to be fed laterally, guiding mechanism comprising an additional rope drum of a diameter approximately equal to the width of the frame of said mining machine and also mounted concentrically with said shaft, an additional rope wound on said additional rope drum and adapted to extend from said mining machine frame to an anchorage during feeding operations and also during shifting of the mining machine longitudinally forwardlyand rearwardly, retarding mechanism applied to said additional rope drum, and means for connecting said rope drums to rotate together and effect transmission of \power from said' shaft to said additional rope drum.

22. In a mining machine, the combination with a supporting frame, of a chain cutter mounted thereon in position to cut a horizontal kerf in a mine Wall, a vertical drive shaft connected to said chain cutter, a motor shaft, a rope drum mounted concentrically 'withsaid drive shaft, mechanism' for transmitting power rope drum to rotate the latter, a rope wound on said drum and adapted to have its free end connected to an anchorage, a second rope drum also concentric with said shaft, an additional ropewound on said second rope drum and having its free end adapted to be secured to an anchorage retarding mechanism applied to said second rope drum, and means for connecting said first named drum to said second drum to secure transmission of power from said motor to said second drum. v

23. In a mining machine, the combination with a supporting frame, of a chain cutter mounted thereon and comprising a sprocket wheel, a vertical drive shaft connected to said sprocket wheel, a motor connected to said drive shaft, a clutch for connecting said driveshaft to said sprocket wheel to drive said chain cutter, a rotatable drum mounted on said frame concentrically with the drive shaft, an inner annular gear on said drum spaced from said drive shaft, mechanism for transmitting power from the motor. to said rope drum to rotate the same, means for controlling said power transmittingmechanism to effect the rotation of said drum independently of the operation of said chain cutter, and a rope mounted on said drum and having its free end adapted to be secured to an anchorage.

24. In a mining machine, the combination with a supporting frame, of. horizontal kerf cutting mechanismmounted thereon and comprising a sprocket wheel, a vertical drive shaft extending through the center of said sprocket wheel, a motor connected to said 'ertical drive shaft, a clutch for connecting said drive shaft to said sprocket wheel to drive said kerf cutting machine, an annular rope drum mounted on said frame concentrically with said vertical drive shaft and spaced from said drive shaft to leave an open central portion surrounding said i i 100:

chine including horizontal l'zerf-cuttin-g machine, of feeding mechanism} therefor, a. horizontalsupport in said mining machine, grooved rollers carried by said support.v a rope. drum retarding device, means for controlling the operation of said rope drum retarding device, and means co-acting with said groove devices for supporting the feeding mechanism and said rope drum retarding device. i

26. The combination with a mining'machine, of feeding mechanism therefor, a

horizontal support in said mining machine, a retarding device for the feeding mechacomprising a horizontal rope drumof a diameter approximately equal to the width of the" frame of said mining machine,

ting mechanism, of feeding apparatus comprising a rope drum concentric with said shaft, a motor, gearing connected between said motor and said rope drum comprising an internal annular gear on said rope drum, and retarding mechanism also comprising a rope drum concentric. with said shaft.

28. In a mining machine, the combination with a supporting frame, of a vertical power driven shaft extending through the bottom thereof, cutting mechanism comprising a sprocket wheel mounted concentrically with said shaft, feeding mechanism comprising mechanism, means for an annular rope drum mounted on said frame concentrically with said power driven shaft with an open space between the inner periphery of the said annular drum and said vertical shaft, a rope connected to said drum and wound thereon and having its free end adapted to be connected to an anchorage in 'a mine, means for rotating said shaft,'a clutch on said shaft in the open annular space between said shaft and said annular drum for connecting said shaft to said sprocket wheel to drive said cutting transmitting power to said ropedrum to rotate the latter relatively to said frame around said vertical shaft, and means for controlling said feeding mechanism. Y

29. The combination with a mining machine comprising cutting mechanism, of

-- feeding mechanism for said mining machine comprising. a rope drum having a diameter approximately equal to the. width of said mining machine, a rope wound on said drum and adapted to extend therefrom forwardly from one side of the mining machine or rearwardly. along the other side of C said machine orlaterally to anchorages lo cated respectively forwardly, rearwardly or mining machine in position to engage the r and laterally of said mining machine, and rope llldlllg mechanism connected to the forward POItlOII or the rear portion of said rope between its anchorage and said rope drum to effect movement of the mining machine longitudinally toward the forward anchorage or toward the rearward anchorage while said rope extends directly from either side of said mining machine to such forward or rearward; anchorage.

30. The combination with a mining m-a-- chine comprising an elongated cutter-bar an endles ,cutter-ch'ain mounted to travel around said cutter-bar, of a rope drum mounted on said mining machine man up minmg machine to be wound ment with said rope guiding device, andv means for rotating said rope drum on said upright axis to effect a pull on said rope and movement of the mining machine approximately longitudinally of the cutterbar, while said rope guiding device by engagement with the taut rope compels'the moved thus longitudinally.

31. The combination with a mining machine comprising an elongated cutter-bar and an endless cutter-chain traveling around said cutter-bar, of a rope drum having a diameter approximately equal to the width of the. mining machine and mounted to rotate on an upright axis midway between the sides of the mining machine, a freely detachable rope guiding device adapted to be connected to the outer portion of said cutter-bar at one side of the mining machine or to the rear portion of said mining machine at the other side thereof, a rope wound on said drum andadapted to be connected to an anchorage forwardly of the mining machine or rearwardly thereof, and means for operating said rope drum to, exert a pull on said rope while said rope guiding device engages said rope at a point intermediate said rope drum and either of said anchorages to cause the mining machine to i be moved approximately along j a direction longitudinally of said cutter-bar and toward either of said anchorages.

32. The combination of a mining machine, and feeding mechanism therefor comprising into the grooves of said rollers so as to be supported rotatively thereby, a.rop e wound on said drum and having its free end adapted to be connected to a fixed point, and

means for operating said rope drum.

33. The combination of a mining ma chine, and feeding mechanism therefor comprising a support on the frame of said mining machine, a rope drum of a diameter approximately equal to the width of the frame of said mining machine, grooved rollers carried bysaid support, means on said drum fitting into the grooves of said rollers on said drum and having its free end adapted to be connected to a fixed point, drum.

and means for operating said rope for rotative support thereby. a rope 34. The combination ofaminingmachine,

and means for shifting the position of said.

mining machine comprising a ring rope drum having. an internal annular flange, a plurality of circumferentially spaced apart, circumferentially grooved rollers mounted in the mining machine frame for rotation about upright axes in positlon to rotatively support said ring drum by the said flange fitting into the roller groove, a rope wound on said drum and havingits free end adapted to be connected to an anchorage,- an internal annular gear on said ring drum, and means connected to said gear to drive said drum toexert a pull on said rope to effect shifting of the minin machine.

35. The combination with a mining machine, of a rope drum, means for rotatively supporting said rope drum in the mining machine frame at spaced apart points ad jacent the peripheral portion of said rope drum,.and a rope wound on said drum and having its free end adapted to be connecte to an anchorage in a mine.

36. The combination with a mining ma chine, 'of feeding apparatus thereforcomprising a horizontal rope drum of a diameter approximately equal to the width of the mining machine frame, a rope wound on said drum and having its free end adapted to be connected to an anchorage, power mechanism for rotating said drum relatively to the mining machine frame to exert a pull on said rope'and shift the position of the mining machine, retarding mechanism comprising an additional horizontal rope drum of approximately equal diameter separate from said power mechanism and mounted concentrically with said first named rope drum but for rotation independently thereof, a rope wound on said additional rope drum and having its free end adapted to be connected to an anchorage in the mine, the respective ropes beingextended out of alinement with each other to the said anchorages, and means for. locking said drums together to compel their simultaneous rotation.

.37. The combination of a mining machine and feeding mechanism therefor comprising a horlzontal ring rope drum of a diameter approximately equal to the width of the 'minlng machine, an additional horizontal ring rope drum also of a diameter approximately equal to the width of the mining machine frame, means for circumferentially supporting said ring r0 e drums concentric with each other and eac for rotative movement relativelyto the mining machine frame independently of each other, means for positively driving the first named rope drum, means for retracting the said additional rope drum, a rope wound on said first. named rope drum and having its free end adapted to be connected to an anchorage in a mine an additional rope wound on said additional drum and having its free end adapted to be connected to an anchorage in a mine in position Where said ropes will be out of to effect shifting of the position of said mining machine upon rotation of said. drum,

alinement, a brake associated with the additional drum to control the rotation thereof during the shifting of the mining machine so as to retard movement of a portion of the latter and control feeding of the mining mechanism, and a locking .device adapted to connect said drums to secure positiverotation of the retarding drum when the shifting drum is operated.

38. The combination of a mining machine comprising, cutting mechanism" and a power driven shaft connected to said cutting mechanism, feeding apparatus comprising a rope drum mounted on the mining machine frame for rotation relatively thereto, a mo tor, gearing connected between said motor and said rope drum comprising an internal annular gear on said rope drum, retarding mechanism also comprising a, rope drum mounted on 'sald mining machme frame for rotative movement relative thereto, a rope wound on said first named ,rope drum and having its free end adapted to be connected I to an anchorage in the mine, and an additional rope wound on the retarding rope drum and having its free end adapted to be connected to another anchorage, said ropes being out of alinement with each other during. the shifting of the position of the mining machine to feed the latter.

39. The combination of a mining machine comprising cutting mechanism and a power right power driven shaft adapted to be connected to said cutting mechanism, feeding apparatus comprising a horizontal ring rope drum surrounding said upright shaft, a motor, gearing connected between said motor and said ring rope drum comprising an internal annular gear on said ring rope drum, and retarding mechanism also com-.

prising a horizontal ring rope drum surrounding said upright shaft.

41. The combination of a mining machine comprising horizontal kerf cutting mechanism and an upright power driven shaft adapted to be connected to said kerf cutting mechanism to drive the latter, feeding apparatus comprising a horizontal ring rope "drum surrounding said shaft and spaced therefrom, retarding mechanism comprising an additional horizontal ring rope drum surrounding said upright shaft and spaced.

therefrom, means for circumferentially supporting said ring rope drums on the nuning machlne frame for rota'tlve movement relatively to said frame, power transmission mechanism comprising an auxiliary upright shaft spaced from said upright power driven shaftend extending through said ring drums and connected to an internal annular gear'on the first named drum, and. two ropes one wound on each of said drums and adapted to have their free ends connected to anchorages in the mine in positions where said ropes will be out of alinement with each other during'the operation of said mining machine including the feed thereof by shifting the position of the mining machine when said first named rope drum is driven while said retarding mechanism is efi'ective.

4:2. The combination of a mining machine comprising under-cutting mechanlsni, feed:

ing mechanism for said mining machine comprising a ring rope drum, means for supporting said rope" drum circumferentially in the frame of the mining machine in an apg proximately horizontal plane relatively low and immediately above said undercutting mechanism and havi ng a peripheral travel at one side of the mining machine, a draft rope wound on said drum and adapted to extend tangentially therefrom along'one, side of said under-cuttingmechanism parallel to the longitudinal upright plane extending through the mining machine,,and a rope guide adapted to be connected to the forward portion of the under-cutting mechanism and engage'said'draft rope at apoint between said rope drum and an anchorage to which the free end of said rope is I connected.

43. The combination with a mining machine comprisingan under-'cuttingkerf cutter extending longitudinally ofthe mining machine frame, of draft mec ianism mounted on sa d mlnlng machine frame and compris-.

ing a large ring rope drum "having a diameter approximately equal to the widthframe, means'forh said rope drum on'said' frame in a relatively low horiof said mining machine circumferentially' supporting zontal plane adjacent the horizontal plane of said kerf cutter,

from tangentially forwardly or rearwardly along either side of the mining machine parallel to the length thereof, the free end of said rope being adapted to be connected to a fixed point external ofthe' said mining, machine, rope guiding mechanism adapted" to be connected with said rope at a point intermediate said rope drum and said fixed point on either side of themining machine,

and means for rotatingsaid drum to effect temporarily a draft rope, wound on said drum and adapted to extend thereropes,

] circular portion of on longitudinal movement of said mining ma chine in either direction when said rope is thus associated withsaid rope guiding mechanism. 1

44:, The combination with a mining chine comprising an under-cutting kerf cut t'erj of a horizontal rope drum mounted in the frame of sald mining frame in a relatively low plane adjacent the plane of said kerf cutter and having a diameter approximately equal to the width of said mining machine frame with the peripheral paths of travel adjacent the open sides of said frame, a draft rope wound on said drum and adapted to extend therefromat either side of the mining machine frame to anchorages extending over a range of approxi mately ninety degrees from a position ex-' tending from an anchorage to the rope drum at right angles with the mining machine frame to ananchorage extending to the rope drum in alinement with theside of 'the'mining machine, and means for rotating saiddrum to exert a pull onsaid-rope to propel the mining machine laterally, for wardly, rearwardly or angnlarly, in accor ance with the relativeposition' of the anchorage. a

4&5JThe combination with a mining machine comprising an elongated horizontal kerf cutter, of a horizontal rope drum mounted on said mining machine for rotation on an upright axis midway between the sides of the frame of said mining machine, said rope drum having a-diameter said frame, a draft rope wound 'on said drum and adapted to extend from the mining machine frame on either side thereof at right angles thereto and also to anchor ages in alinement with the sides of the mining machine-frame and to intermediate anchorages, rope guiding mechanism connected to the mining machine in position to engage said rope intermediate the rope drum and the anchorage, and means for ro-.

tating said drum' to shift the mining machine laterally when sald rope extends transversely'therefrom to an anchorage and to shift said mining machine longitudinally when the rope extends to an anchorage in alinement with one of the sides ofthe mining machine frame and when said rope guiding mechanlsm is associated with said 46. In a mining machine, the combination with a bed frame, of a horizontal chain kerf approximately equal to the width of the w I tate the same, a rope engaging the last mentioned drum, sald rope being adapted to have its free end secured to a fixed point to cause bodily movement of the mining machine as the drum is rotated, a rope engaging the other drum and adapted to have its free end secured at a fixed point, .and-

means connected wlth said other drum for tensioning saidrope. Y

47. In a. mining machine, the combination with a movable bed frame, of a horizontally projecting cutter arm rigid with the bed frame, a cutter chain [supported on and guided by said cutter arm, a sprocket wheel engaging the cutter chain to drive it, a vertical drive shaft connected to the sprocket wheel in axial alinement therewith, a motor connected with the drive shaft, a rotatable ring Winding drum mounted for circumferential support at placesfspaced from said vertical drive shaft, with the periphery of said drum exposed at the sides of said bed frame along lines parallel to a vertical plane extending longitudinally through the center of the mini-ng machine, mechanism for transmitting power of the motor to rotate said drum in either direction independently of the direction of rotation of said sprocket wheel, and a feed rope engaging the drum and adapted to extend therefrom dlillielctly to a fixed point external to the ma- 0 e.

48. In a mining machine, the combination with a movable bed frame, of a horizontally projecting cutter arm rigid with the bed frame, a cutter chain supported on and guided by said cutter arm, a sprocket wheel engaging the cutter chain to drive it, a vertical drive shaft connected to the sprocket Wheel in axial alinement therewith, a motor connected with the drive shaft, a rotatable winding drum mounted on said frame" in a horizontal position and surroundin said vertical drive shaft, the periphery 0 said drum at one side of the machine being exposed along lines parallel to the direction of feed, mechanism for transmitting power "of the motor tov rotate the drum in either direction independently of the direction of rotation of the sprocket wheel, and a feed rope engaging the drum and adapted to extend therefrom at one side of the mining machine to a fixed point external thereto.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on the 5th day of February, A. D. 1913.

EDMUND C. MORGAN;

Witnesses: I

Cans; Nissan, H- E