US1430521A - Mining machine - Google Patents

Description

M. P. HOLMES.

MINING MACHINE.

RENEWED FEB. 25, 1920.

APPLICATION FILED NOV- 27. I908.

Patented Sept. 26, 1922.

2 SHEETSSHEET I.

I nve h Z01 Morrislfflolmea M. P. HOLMES. MINI'NG MACHINE.

APPLICATbN FILED NOV. 27,1905. RENEWED FEB. 25,1920- IA 1,430,521 1 PatentedSept. 26, 1922.

2 SHEETSSHEET 2. Fig-5- jig-6'' z i 2 a o g 1 l3 5 a 0i /4 Patented Sept. 26, 1922.

UNiTEi) STATES" 1,430,521 PATENT oFFIcE.

MORRIS P. HOLMES, 0F CLAREMON T, NEW HAMPSHIRE, ASSIGNOR, BY MESN E ASSIGN MEN TS, TO THE JEFFREY MANUFACTURING- COMPANY, OF COLUMBUS, OHIO, A

- CORPORATION OF OHIO.

Application filed November 27, 1908, Serial No. 464,723.

To all whom it may concern Be it known that I, MORRIS P. HOLMES, a, citizen of the United States, residing at Claremont, county of Sullivan, and State of New Ham )shire, have invented an Improvement in ldining Machines, of which the fOllOWiIlg description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to minin machines, being more particularly intendet to provide improved means for feeding and guiding a mining machine while it performs the cutting operation.

l\ y invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings:

Fig. 1 shows in plan, partially broken away, a mining machine embodying one form of my invention;

Fig. 2 is a central sectional plan on the line 2-2 in Fig. 4; showing the speed reduction gearing for the cable winding drum on the machine of Fig. 1;

Fig. 3 is an elevation, partially in section. showing the mining machine of Fig. 1;

Fig. 4 shows an elevation, in section on the line 4-4 in Fig. 3 partially broken away, of the same mining machine, and

Figs. 5, 6 and 7 are diagrams showin the mining machine of Fig. 1 as arranged for executing the main cut, loading movement and starting cut, respectively.

Referring to the drawings and to the embodiment of my invention which is therein shown, I have there disclosed, for the sake of illustration one concrete form of my invention, a mining machine of the well-known cuttcr chain type provided with the cutter bar 1 projecting therefrom and. adapted to undercut the wall of the mine with ahorizontal kert' as the machine is moved trans vcrsely to the direction of the cutter bar length or in the direction of the/arrow shown in Fig. 1.

The cutter bar, as usual carries a suitable cutter chain 2 provided with the usual cutters 3 and is driven from the drivin Sprocket wheel 4 (Fig. 3). The latter is mounted to be driven by means of the-large MINING MACHINE Renewed February 25, 1920. Serial No. 361,110.

beveled gear 5 which meshes with the beveled pinion 6, the latter secured to the rear end of the armature shaft 7 of the horizontally disposed electric driving motor, the frame of which is shown at 8.

lVhile any suitable construction may be employed for traversing the machine while cutting, in the present instance supportin means are provided upon and with whicl i the machine is adapted to move along the mine, and preferabl as in the machine of the prior patent to M itchell No. 656,414, such means is provided in the form of a bottom member or shoe 9 upon which the machine is adapted to slide and, if desired, directly upon the bottom or floor of the mine.

In order to hold the cutter chain and the cutter bar in the desired relation against the work as the machine is fed along, guiding means are provided, the same herein consisting of ropes, cables or other flexible guiding members kept under tension and so associated with the machine that the cutter bar, as it travels, is held up to the work without the necessary use of rails or other like guiding supports.

In the illustrated form of my invention I provide for this purpose flexible guiding means, herein in the form of a wire rope or cable comprising two portions or lengths 10 and 11, both connected to a fixed support, one on the advancing side of the machine and the other on the receding side thereof, and one connected to the machine relatively adjacent its wall or cutting end and the other relatively near the opposite end thereof.

Suitable operating means are employed for the flexible guiding means, the same preferably comprising a feed operating member, herein in the form of a single winding drum 12, rotatable on a horizontal axis and havin at one end a cable 10 fixedly secured hereto, and at the opposite end a cable 11 fixedly secured thereto, so that as one cable winds on the drum the other unwinds, thereby utilizing the same winding surface for the two cables.

Since one of the flexible members has its end fixedly secured to the drum adiacent one end of the latter and one end of the other member is fixedly secured to the drum adjacent the other end of the latter, the arrangement is such that as one winds onto the drum theother unwinds, the action being entirely automatic, and requiring no attention whatever on the part of the mp erator.

While either cable might be secured to its fixed support, in the present machine (see Fig. 5) the cable It), in making the main or lateral cut, extends directly from the drum 12 to and about a guiding sheave l3 and thence back to the machine to which the free end of the cable is fastei'ied at the oint 14 (Fig. l). The sheave [3 is fixedly i'ield at the end of the coal face by any suitable means, as by the anchor l5, which may be of the construction shown in the aforesaid Mitchell patent.

The cable l1 also in passing from the machine leads directly from the drum 1:? to a guiding sheave 16 at the receding side of the machine and thence hack to the ma chine where its free end is securely tastened to a feed controlling member, herein in the form of an adjustable take-up drum 17 (Fi s. l and 2), the latter herein being rotatab e on a vertical axis at the rear of the machine or that end opposite the wall or cutting end.

Such take-up drum is provided with means to hold it in position while permitting adjustment to take in or let out the free end of the cable. Such means herein comprise the ratchet wheel 18 fixedly secured to the drum and holding the drum against unwinding movement through the action of the locking dog 19. A ratchet lever 20 is also provided with a pivotally mounted pawl 21 engaging the ratchet 18, the mechanism is thus so arranged that the drum may be turned step-by-step to take in the trailing cable 11 or, by temporarily withdrawing the dog 19 from the ratchet, the drum may be allowed to turn under control of the ratcheting lever to slacken out the trailing cable to any desired extent.

While my invention contemplates various connections for the take-up cable capable of producing the functions desired, in the present instancethe sheave 16 is mounted upon the fixed jack-or support 22 arranged substantially in line with the winding drum 12 and the trailingcable pg ssesfrom such sheave to an adjacent sheave 23 fixed substantially in line with the take-up drum 17 on the machine.

In order to so plement the action of the take-up drum, i and when necessary, and

. to take up the cable 11; by means apart from the machine, means may be rovided for adjusting one or bothof the guiding sheaves 16 and 23 and herein for such purposes the sheave 23, is shown to be secured to the short length of cable chain 24 and the latter passes about the sprocket wheel of an adjustable take-up jack conventionally indicated in Fig. 5 and having a construction thereof.

which may be similar to that of the take-up jack shown in Figs. 1b and l7 of the aforesaid Mitchell patent.

it will be seen that the cable portion ltJ, when placed under tension, is so connected to the machine as to exert its draft upon the same adjacent the wall end of the machine, while the resultant draft or effective connection to the machine of the double cable portion 11 is nearer the opposite end With the two cable portions, there-- fore, placed under tension, and with the cutter chain in position against the work, they serve to hold the cutter bar against the work as the machine travels along and in a position which can be regulated by taking in or letting out the trailing cable 11 to swing the machine more or less about its connection to the advancing cable 10 as a fulcrum. Obviously, the leverage of the arrangement might be increased by so guiding the trailing cable rearwardly from the drum as to leave the machine, as well as return to the same, adjacent the outer end instead of leaving it near the inner or cutting end, but for ordinary purposes the lesser leverage effected by the disclosed arrangement of the trailing cable, which brings its draft or effective connection somewhere near the mid portion of the machine, will sufiice.

Referring now to the mechanism for the winding drum 12, the latter is driven from the driving motor 8 through suitable speed reduction gearing, which permits the employment of either one of two speeds. The drum is mopnted to turn upon bearings 25 presented by the head portion 26 of the machine, and is arranged coaxially with the motor, so that its main shaft 27 extends rearwardly through the hollow motor shaft 7 to the speed change mechanism at the rear of the motor. To turn the drum driving shaft 21, the latter is provided with any suitable form of speed change clutching device, a well-known form of which is herein shown "in Fig. 3 as applied to the shaft.

Herein this sconsists of t e grooved clutch member 28 fixedly secured to the shaft to r0 tate therewith, but slidable thereon, carryinggripping members 29 and .30 connected to the said clutch member by the toggle links 31 and 32, respectively, so that w en moved in one direction or thei other the clutch member may be gripped either to the clutch casin direction in whlch the said clutch member is moved. The clutch member may be moved at will in either direction b means of the clutch lever 35 leading to t e short upright shaft 36 carrying at its end the eccentric or cam 37 seated in the groove of the clutch member 28.

The clutch casing ilis fixedly secured to the hollow motor shah 7 so as to be constantl y driven thereby so that. when engaged 33 or 34 according to the,

therewith, the clutch member and the drum driving shaft are driven at a high rate of speed directly from the motor.

On the other hand, the clutch casing 34 is connected to the beveled gear 38 meshing with the beveled pinion 39, the latter secured to the upright driving shaft 40 constantly driven by the large beveled gear 5. When the clutch member 28, therefore, is engaged with the clutch casing 34, the drum driving shaft 27 is driven in the opposite direction and at a reduced rate of speed through the armature shaft 7, beveled gear 5, the upright shaft 44), the beveled gears 39 and 38, and clutch casing 34.

To secure further reduction to the movement of the winding drum, additional speed reduction gearing is employed, preferably of the planetary type, and herein located within the walls of the drum. Referring to Figs. 2 and 4 the drum driving shaft at its forward end has keyed thereto the small driving pinion 41 meshing with an intermediate pinion 42, the latter journaled upon a stud 43 fixed in the arm 44 which is free to turn about the shaft 27. The gear 42, however, engages with an internal gear 45 cut on the inner wall of the drum 12 so that the arm 44 has a resultant slow turning movement which is communicated to the small pinion 46 fixed to the arm and turning coaxially therewith.

A second reduction is secured by providing the second intermediate gear 47 meshing with the pinion 4G and also with the internal gear 45, the gear 47 being carried b the arm 48 which also turns about the s aft 27. Movement is communicated to the drum from the arm 48 by means of the small pinion 49 fixed to the arm, which pinion meshes with the intermediate gear 50 turning upon a fixed journal 50 on the head 26 and meshing with the internal gear 45 on the drum. By means of this speed reduction gearing the high speed driving movement of the motor in one direction is transformed into a slow drum turning movement in the same direction.

Referring to Fig. 5 the operation of the machine in effecting the lateral or main cut will be clear. \Vith the cables arranged as therein shown and as previously described, the clutch lever 35 may be turned to ime part to the winding drum the slow speed turning movement so that the cable 10 is slowly wound in at the same rate as the cable 11 is payed out. This results in maintaining the initially established tension on the cable 11 so that the machine in its travel is held in and against the work. The cutters (which more in the direction of the arrow shown in Fig. 1) act to draw the machine in, and the trailing cable tends to swing the cutter bar forward about the fulcruming attachment of the cable 10 to the machine, holding the cutters against the coal.

By reference to Fig. 5 it will be seen that the machine is held in the cut by the opmsing pull of the two cables exerted one near the wall and the other more remote tllGI'GfIOIIl. By adjustabl taking up or letting out the receding ca 1e 11, therefore, the angular inclination of the machine may be adjusted. Such adjustment in the illustrate machine by the manipulation of the ratchet and pawl mechanism described, or away from the machine by the manipulation of the take-up jack 25.

In Fig. 6 I have shown the arrangement of cables for loading the. machine upon the truck or upon a starting frame such, for example, as the frame 51, which is customarily employed to guide the machine in making the startingor sumping cut. For this purpose the trailing cable 11 passes off from the winding drum 12 about a suitably positioned guide sheave 52 and then extends to a guide sheave 53 fixed at the rear end of the starting frame and thence back to the take-up drum 1? at the rear of the machine. \Vith the table thus arranged the clutch lever is turned to give the quick winding movement to the drum, thus acting to turn the wimling drum reversely at a. high rate of speed, winding in the cable 11 and drawing the machine upon the starting frame at a more rapid rate of travel than is employed in the cutting movement. During this operation the free end of the cable 10 may be taken up by the attendant. Other arrangements of cables within the scope of the appended claims by which the machine may be caused to feed itself from one position to another about the mine bottom, will readily suggest themselves to those skilled in the art.

In Fig. 7 I have shown an arrangement of cables which may be employed for making the starting or sumping cut. Under such conditions the advancing cable It) leads from the winding drum 12 about an appropriately positioned and removably mounted guide sheave 54 (see Fig. 4). thence forwardly to a guide sheave 55 fixed adjacent the.coal face and thence backwardly to the point of attachment lt upon the machine. With the clutch lever then turned to give the slow speed, the wirding drum will be turned slowly in such a direction as to wind in the cable 10, drawing the cutter bar and cutters into the coal. During this movement the free end of the trailing caible 11 as it is unwound from the drum may be taken up on the take-up drum at the rear of the machine.

Preferably I provide a. hood or casing encircling the winding drunr 12, or the greater portion of the pc 'iphery thereof, and lying closely adjacent the i able coils. so that a uniform helical relation of the latter will machine may be effected either at the be enforced whether or not tension of the cables is reserved. This op poses any tendency of t 1e coils to open and climb one over the next adjacent one, or otherwise to become entangled.

As a result of my improved construction, it will be noted that it is possible to produce a machine having feed operating and takeup means on the machine and having provision for operating the flexible feeding mechanism and controlling the same from the machine with facility, which at the same time, due to the disposition of the cutter chain sprocket and motor with the axis of the former spaced lon itudinally from the latter, is of a vertical y compact construction, which is adapted to use in low vein work, while, due to the disposition of the cutter chain sprocket in this spaced relation in rear of the motor and the provision of a driving connection between the power driven feeding mechanism and the same end of the motor which drives the sprocket, herein having no part of it extendin r below the bottom of the motor, it is also ma e possible not only to obtain this desired compactness and enable the height of the motor and its supporting means to determine the height of the machine, but to locate the connections to the motor in adesirable and protected position above the cutter chain sprocket and also to locate the controlling mechanism. in such position as to be conveniently operable by an operator at the rear end of the advancing side 'of the machine where he is least liable to injury from the fall of coal which has been undercut. Other advantages of my improved construction. will also be clearly apparent to those skilled in the mining machine art.

While I have herein shown for the purpose of illustration one specific form of my invention, it is to be understood that the same is not limited to the details of construction, or the relative arrangement of arts, or the a plication herein made of the invention, or t e particular form of mining machine shown, but that extensive deviations may be made in respect to these features from the showing made, Without departing from the spirit of the invention.

Having thus described my invention, what I claim is:

1. In a mining machine, the combination with cutting means, of flexible guiding means comprising two flexible guiding memhers connected each to a fixed support, one on the advancing side of the machine and the other on the receding side thereof, said guiding members being connected to the machine, one near the wall or cutting end and the other nearer the opposite 'side thereof, and means for controlling said guiding members including a. winding drum for the guiding member leading to the receding side and located near the forward or cutting end of the machine aoent the point of connection of the first guiding member to the machine.

2. In a mining machine, the combination with cutting means, of flexible guiding means comprising two flexible guiding memhers connected each to a fixed support,-one on the advancing side of the machine and the other on the receding side thereof, said guiding members being connected to the machine, one near the wall or cutting end and the other nearer the o posite end thereof, a mbtor, a single win 'ng drum about which both guiding members are wound, said drum being driven b said motor and located near the cutting on of the machine and in front of said motor.

3. In a mining machine, the combination with cutting means, of flexible guiding means comprising two flexible guiding portions connected each to a fixed support, one on the advancing side of the machine and the other on the receding side thereof, one of said guiding portions being connected to the machine near the Wall or cutting end thereof, and the other extending from the machine near the wall or cutting end thereof to its fixed support and thence back to the machine near the op site end thereof, and means for controlling said grinding members.

4. In a mining machine, the combination with cutting means, of cable feeding means including a cable-winding drum on the machine, a driving motor, planetary speed reduction gearing for transmitting driving effort from the motor to the drum, said gearing being located. within the drum, and means at will to oanw said motor to drive said drum directly or at a reduced speed through said gearing in opposite directions.

In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter inecl anism carried thereby including a projecting cutter chain carrying cutter bar and a cutter chain driving sprocket. means for feeding said machine by power comprising flexible lateral feeding portions extending from said frame and acting on the opposite ends thereof, a cooperating feed operating member rotatable on said frame, and a cooperating independently movable takeup member on said frame, a horizontally dlsposed longitudinally extending motor driving said sprocket and carried on said frame and spaced longitudinally from said sprocket, and driving connections between said feedin means and the rear end of said motor.

6. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby including a projecting cutter chain carrying cutter bar and a cutter chain driving sprocket. means for feeding said machine by power comprising flexible lateral feeding portions extending from said frame and acting on the opposite ends thereof, a cooperating feed operating member rotatable on said frame and a. cooperating manually controllable take-up member on said frame movable independently of said feed operating member, a horizontally disposed longitudinally extending motor carried on said frame spaced longitudinally from said sprocket and driving the latter, and driving connections between said feed operating member and the rear end of said motor disposed above the bottom of the latter.

7. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby including a projecting cutter chain carrying cutter bar and a cutter chain driving sprocket, means for feeding said. machine by power comprising flexible l'ateral feeding portions extending from and acting on the opposite ends thereof, a cooperating feed operating member rotatable on said frame, and a cooperating take-up member on said frame and movable at will in opposite directions, a horizontally disposed longitudinally extending motor carried on said frame spaced longitudinally from said sprocket, and driving connections between both. said sprocket and said feeding operating member and the rear end of said motor.

8. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby, flexible lateral feeding and guiding means including flexible feeding portions extending from said frame and acting on the opposite ends thereof and a cooperating operatively disposed feed operatin member rotatable about a horizontal axis and mounted on said frame, a horizontally disposed longitudh nally extending motor carried on said frame. driving connections between the rear end of said motor and said feed operating member, and driving connections between the rear end of said motor and said cutter meclv anism.

9. In a mining machine, a machine frame, comprising a. shoe with and upon which said machine is adapted to traverse the mine bottom during cutting, cutter mechanism carried thereby including a longitudinally projecting cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding and guiding mechanism including flexible feeding portions extending from said frame and acting on the opposite ends thereof, a cooperating operatively disposed feed operating member rotatable on a horizontal axis on said frame for pulling the same laterally and a,cooperating operatively disposed takeup on said frame for varying the angular position thereof, a horizontally disposed longitudinally extending motor carried on said frame driving said sprocket and disposed in front of the same, and driving connections between the rear end of said motor and said feed operating member disposed above the bottom of the motor.

10. In a mining machine, a machine fame, comprising a shoe with and upon which said machine is adapted. to traverse the mine bottom during cutting, cutter mechanism carried thereby including a longitudinally projecting cutter chain carrying cutter bar a d a. cutter chain driving sprocket. flexible lateral feeding and guiding mechanism including flexible feeding portions extending from said frame and acting on the opposite, ends thereof, a cooperating operatively disposed feed operating member rotatable on a horizontal axis on said frame for pulling the same laterally and a cooperatin opcratively disposed take-up on said frame for varying the angular position thereof, a horizontally disposed longitudi nally extending motor carried on said frame in front of said sprocket, driving connections between the rear end of said motor and said sprocket, and means for driving said feed operating member from said motor.

11. In a mining machine, a machine frame, comprising a shoe with and upon which said machine is adapted to traverse the mine bottom during cutting. cutter mechanism carried thereby and including a longitudinally projecting cutter chain car rying cutter bar and a cutter chain sprocket, flexible lateral feeding and guiding mechanism including flexible feeding portions extending from said frame and acting on the opposite ends thereof, a cooperating feed operating member rotatable on a horizontal axis on said frame for. pulling the, same lat erallv and a cooperating operatively disposed take-up for retarding the rear end of said frame rotatable on an axis perpendicular to the axis of the motor, a horizontally disposed longitudinally extending motor carried on said frame in front of said sprocket, driving connections between the rear end of said motor and said feed operating member, and means for driving said sprocket from said motor.

12. In a mining machine, a machine frame, comprising a shoe with and upon whi h said machine is adapted to traverse the mine bottom during cutting, cutter mechanism carried thereby including a longitudinally projecting cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding and guiding mechanism including flexible feeding portions extending from said frame and acting on the opposite" ends thereof, a cooperating feed operating member rotatable on a horizontal axis on said frame for pulling the same laterally, and a cooperating operatively disposed take-up for retarding the rear end of said frame rotatable on an axis perpendicular to the axis of the motor, a horizontally disposed longitudinally extending motor carried on said frame in front of said sprocket, and driving connections between the rear end of said motor and both said sprocket and said feed operating member.

13. In a mining machine, a machine frame, cutter mechanism. carried thereby. a feed operating member rotatable on a horizontal axis on said frame for pulling the same laterally, a longitudinally disposed motor on said frame, a. driving clement rotatable on a vertical axis on said frame to the rear of and driven by said motor. and driving connections from said element to said cutter mechanism and feed operating member.

14. In a mining machine, a machine frame, cutter mechanism carried thereby. a feed operating member rotatable on said frame for pulling the same laterally, a retarding member on said frame. a longitudinally disposed motor on said frame. a driving element rotatable't'on a vertical axis on said frame and driven by said. motor, and drivin connections from said driving element to both said cutter mechanism and one of said members.

15. In a mining machine. a machine i'ramc. cutter mechanism carried thereby, flexible feeding means therefor including a feed operating member operable sin'iultaneously to draw in and feed out advance and trailing portions thereof and a take-up on said frame movable independently of said feed operat ing member, a longitudinally disposed motor on said frame, and driving connections between the rear end of said motor and both said cutter mechanism and feed operating member.

16. In a mining machine. a machine frame, cutter mechanism carried thereby, flexible feeding means, a feed operating; member operable simultaneously to draw in and feed out advance and trailin; portions thereof. an independently adjustable feed controlling member on said frame, a iiorizonlul motor on said frame, driving connections between horizontal motor on said frame, a horizontally disposed gear driven from the rear end of said motor and carried on said frame, and operative connections between said gear and both said. cutter meehanism'and feed operating member.

18. ln a mining machine,amachine frame, cutter mechanism extending beneath the same, mechanism for feeding said machine by power comprising flexible feeding means. a feed operating member rotatable on a horizontal axis on said frame and operative simultancrmslv to draw in and feed out portions of said flexible feeding, means, a rotatable member on said frame operative to vary the effective length of the fed out portion, a horizontal motor, and operative connections between the rear end of said motor mid said feeding mechanism, there being also an operative connection between the rear end of said motor and said cutter mechanism.

10. In a minin machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby, means for effecting movement of said frame bodily laterally by power comprising flexible feeding, portions extending from said frame and actin; on the opposite ends thereof including a fccd opcrating member rotatable on ahorizontal axis on said frame and a cooperating: talu-aip rotatable n a vertical axis on said i'ramc. a motor on said frame. and driving connections bctivccn said motor and both said cuticr mechanism and said means for ell'cciiug moicmcni of said frame.

i l. in a mining machine, a ma binc frame slidablc on its bottom on a mine bottom. cutter mechanism carried thereby and extendin; longitudinally thereof during cutting. means for effecting movement of said frame bodily laterally by power comprising flexiblc Feeding portions extending from said frame and actin; 1 on the opposite ends thereof' inclui'linc a feed operating member rotatable on a horizontal axis on said frame, arid a iaioperating lake-up rotatable on a vertica axis on said l'ramc. a motor on Said frame bclwecn said iced operating member and talcenp, and driving" (illlIlUtftlOllS be tween the same end of said motor and both said cutter nn-chanism and said means for effecting movement of the frame.

21. in a. mining machine. a machine frame slidable on its bottom on a mine bottom, cutter mechanism arried thereby and cxtending longitudinally thereof during cutting, means for effecting: bodily feeding movement of said machine comprising flex ible feeding portions extending from said fauna and acting on the opposite ends thereof. a feed opcrating member rotatable on a horizontal axis on said frame and a cooperating take-op rotatable on a vertical axis on said frame, a horizontal motor on said frame, driving connections between said motor and said cutter mechanism and feed operating member, and means for rotating said take-up.

22. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism thereon and projecting longitudinally from the front end thereof during cutting, means for feeding said frame bodily laterally by power comprising flexible feeding portions extending from said frame and acting on the opposite ends thereof and a cooperating opcratively disposed feed operating member rotatablc on a horizontal axis on said frame, a horizontal longitudinally disposed motor on said frame. a horizontally disposed gear driven from the rear end of said motor, a cutter driving sprocket. rotatable with said gear. and reduction mechanism driven by said gear aml connected between the same and said feed operating member.

23. In a mining machine. a machine frame slidable on its bottom on a mine bottom, cutter mechanism thereon and projecting longitudinally from the front end thereof during cutting, flexible lateral feeding and guiding means including flexible feed portions extending from said frame and acting on the opposite ends thereof and a cooperating operatively disposed feed operating member rotatable on a horizontal axis on said frame, a horizontal longitmlinally extending motor on said frame, a horizontally disposed bevel gear driven from the rear end of said motor, a cutter driving sprocket rotatable with said gear, and reduction mechanism including a horizontally disposed shaft operativcly connected between said feed operating member and said gear.

24. In a mining machine,a machine frame slidable on its bottom on a mine bottom. cutter mechanism carried thereby including a longitudinally extending cutter chain carrying cutter bar and a cutter chain driving sprocket,'means for feedings-aid machine by power comprising means on said frame for pulling the same laterally and retarding the rear end thereof atwill comprising flexible feeding portions acting on the op posite ends of said frame and cooperating feed operatingnnd take-up mechanisms, :1 horizontally disposed longitudinally extend- 'i'ng motor carried on the frame and longitudinally spaced from said sprocket, and actuating connections between the rear end of said motor and aid feeding means, there being also actuating connections between the rear end of said motor and said s irocket.

25. In a mining machine. a n'iacliine frame slidable on its bottom on a mine bottom. cutter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding and guiding means including flexible feeding portions acting on the opposite ends of said frame, a feed operating member rotatable about 'a horizontal axis on said frame for pulling the same laterally, and a feed controlling member on said frame for retarding the rear end of the same, a horizontally disposed longitudinally extending motor carried on said frame in front of said controlling member amt longitudinally spaced from. Said sprocket, and driving connections between the same end of said motor and said first mentioned member and spro ket.

9.6. In a mining machinc,a machine frame comprising a shoe with alld upon which said machine is adapted to traverse the mine bottom during cutting, cutter mechanism carricd thereby and including a cutter chain carrying utter bar and a cutter chain driving sprocket. flexible feeding means including flexible feeding portions acting on opposite ends of said frame and a cooperating feed operating member rotatable on said frame for pulling the same laterally, a horizontally disposed motor carried on said frame and longitudinally spaced from and driving said sprocket, driving connections between the same end of said motor and said feed operating member and sprocket, and independently movable means for retarding the rear end of said frame including a takeup rotatable on an axis disposed in rear of said motor and perpendicular to the axis ofsaid feed operating member.

)7. in a mining machine. a machine frame presenting a shoe with and upon which said machine is adapted to traverse the mine bottom during cutting, cutter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding means including flexible feeding portions acting on opposite ends of said frame. a cooperating feed operating member on said frame for pulling the same laterally and a take-up member on said frame. a horizontally disposed longiludimilly extending motor carried on said frame longitudinally spaced from said sprocket and between said feed operating member and talteaip. driving connections between the same end of said motor.and said feed operatingmcmher and sprocket. and means for moving said take-up member independently of said feed operating member.

28. in a mining machine. a machine irame comprisinga shoe with and upon which said machine is adapted to traverse the mine bottom during cutting cutter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain driring sprocket. flexible lateral trolling member independently of said food operating member.

29. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding means including flexible feeding portions acting on opposite ends of said frame, a feed operating member rotatable on said frame for pulling the same laterally, and a feed controlling member rotatable independently of said feed operating member on said frame upon an independent axis, a horizontally disposed lon itudinally extendin motor carried on said frame between said sprocket and said feed olerating member and driving said sprocket, driving connections between the rear end of said motor and said fccd operating member, and means for controlling the rotation of the feed controlling mem ber.

30. 1n n mining machine, a machine frame slidablc on its bottom on a mine bottom, cutter mechanism carricd thereby ineluding a cutter chain carrying cutter our and n cutter chain driving sprocket, flexible lateral feeding means including flexible feeding portions acting on opposite ends of said frame, a feed operating mono her rotatable on said frame for pulling the some laterally, a feed controllin member rotatable independently of said eed operating member on said frame about. a differ ent nxis, a horizontally disposed longitudinnlly extending motor driving said sprocket and carried on said frame between said sprocket and said feed operating member, drivin connections betvs 'een the rear end of said motor and said feed operating member, and means for controlling the rota'tion of said feed controlling member.

31. In a mining machine, a machine frame, cutter mechanism carried thereby, a feed operating member rotatablc on said frame for pulling the same laterally, a feed con trolling member rotatable on said frame, a horizontally disposed li mgitullinally extending motor carried on said frame and driving said cutter frame, drivin connections be tween therear end of sai motor and said same laterally, a horizontally disposed longifeed operating member, and means for selectively rotating or controlling the rotation of said controlling member whether said machine is cutting or idle.

32. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain drivin sprocket, flexible feeding mechanism including flexible rope portions acting on opposite ends of said frame, a rope winding feed operating drum cooperating with one of said portions and rotatable on said frame for pulling the tudinaliy extending motor carried on said firame longitudinally spaced from said sprocket and driving the same, driving connections between one end of said motor and said drum, a rope Winding take-up drum to operating with the other of said portions rotatably mounted on said frame and movable independently of said feed operating drum, and means for rotating said take-up drum.

In a mining machine, a machine frame, cutter mechanism carried thereby, a rope winding feed operating drum rotatable on said frame for pulling the same laterally, a rope winding take-up drum. rotatably mounted on said frame, a horizontally disposed longitudinally extending motor carried on said frame and driving said cutter mechanism, driving connections between the rear end of said motor and said first men- 1110 tioned drum, and means for controlling the rotation of said last mentioned drum operable during the travel of said machine,

34-. In a mining machine, a machine frame, cutter mechanism carried thereby, a rope i winding drum rotatable on said frame for pulling the same laterally, a rope winding drum rotatably mounted on said frame, a horizontally disposed longitndinnlly extending motor carried on said frame and driv- 11o ing said cutter mechanism. driving connections between the rear end of said motor and said first mentioned drum, and means for selectively rotating or cmitrolling thc rotzv tion of said lust mentioned drum as said min chine moves across tho working face.

35. in a mining machine, rlllliiillllllt frame, cutter mcchanism curried thereby, a feed operating member rotatable on said frame on a horizontal axis for pulling the some laterally, n horizontally disposed longitudinally (*Xtfillfllilg motor carried on said frame and driving said cutter mechanism, and driving connections between one end of said motor and said iced operating member including reduction mechanism housed in said feed operating member.

36. In a mining machine, a machine frame, cutter mechanism carried thereby, a feed operating drum rotatable on said frame for 330 pulling: the same laterally, a feed control lin drum rotatably mounted on said frame,

, a 'orizontally disposed longitudinally ex tending motor carried on said frame and driving said cutter mechanism, and driving connections between the rear end of said motor and one of said drums including reduction mechanism housed in said drum.

37. In a mining machine, a machine frame, cutter mechanism carried thereby, a feed operatin drum rotatable on said frame for pulling t e same laterally, a feed controlling drum rotatably mounted on said frame, a horizontally disposed longitudinally extendin motor carried on said frame and driving sai cutter mechanism, and driving connections between the rear end of said motor and one of said drums including an internal gear in said drum and a spur ear meshing therewith and driven by sai motor.

38. In a mining machine, a machine frame presenting a shoe with and upon which said machine may be slid universally over a mine bottom, cutter mechanism carried thereby, a feed operating member rotatable *on said frame, a horizontal longitudinally extending motor carried on said frame and driving said cutter mechanism, driving connections selectively operable to drive said member in opposite directions at different speeds and driven from the rear end of said motor, and a cooperating feed controlling member r0 tatable on said frame.

7 39. In a mining machine, a machine frame, cutter mechanism carried thereby, a feed operating member rotatable on said frame, a cooperating feed controlling member rotatable on said frame, a horizontal longitudinally extending motor carried on said frame and dr1v1ng said cutter mechanism, drivin connections selectivel operable to drive sa1 feed operating mem er in opposite directions at different speeds and drTven from the rear end of said motor, and means for selectively rotating or controlling the rotation of said controlling member.

40. In amining machine, airachine frame, cutter mechanism carried; hereby, a feed operating member rotatable on said frame on a horizontal axis, a cooperating feed controlling member rotatable on said frame, a horizontal longitudinally extending motor carried on said frame; driving connections between therear end of said motor and said cutter mechanism, and driving connections selectively operable to drive said feed operating member in opposite directions at different speeds and likewise driven from the rear 'endof said motor.

41...; In a mining machine, a achine frame,

'cutter mechanism carried t ereby, a feed operating member rotatable on said frame on a horizontal axis, a cooperating feed controlling member rotatable on said frame on a vertical axis, a horizontal longitudinally A and having a hollow armature shaft, and

driving connections between said feed operating member and the opposite end of said motor therefnom comprising a shaft extending through said hollow shaft.

43. In a mining machine, a machine frame, cutter mechanism thereon, a feed operating member rotatable on said frame, a horizontally disposed longitudinally extending cutter driving motorcarried on said frame and having a hollow armature shaft, driving connections between one end of said motor and said feed operating member comprising a shaft extending through said hollow shaft, and means insaid driving connections controllin the rotationof said member.

44. n a mining machine, a machine frame slidable on its bottomon a mine bottom, cutter mechanism thereon including a cutter chain carrying cutter bar and a cutter chain driving sprocket, said mechanism bein operative to outwith the end or side thereo feed operating means on said frame, a takeup on said frame, flexible feeding means cooperating therewith and connectable to feed the machine towards the working face or parallel thereto comprising flexible feeding portions adapted to act on opposite ends of said frame, a horizontally disposed longitudinally extending motor carried by said frame longitudinally spaced from said sprocket driving connections between said feed operating means and one end of said 45. In a mining maclliiiea', a maclline frame slidable on its bottom on a mine bottom, cutter mechanism thereon including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding means including flexible feeding portions acting on the opposite ends of said frame and a cooperating feed operating member rotatable on a longitudinal axis disposed above said cutter mechanism on said raine, a motor rotatable on an axis extending V in the same direction as the axis of said fee operating member, a take-up member rotatable on said frame and adjustable during feeding movement of said machine, driving connections between the rearend of said n1otor and said sprocket, and driving connections between the rear end of said motor and said feed operating member.

46. In a mining machine, a machine frame presenting a shoe movable universally over the mine bottom, cutterniechanism carried thereby and operative to cut with the end or side thereof, a feed operating member rotatable on the frame for pulling the same laterally, flexible feeding means cooperating therewith and connectable to feed said machine toward the working face or parallel thereto, a feed controlling member rotatably mounted on said frame, a horizontal longitudinally extending ,motor on said frame, driving connections for said cutter mechanism, a feed operating member driven from the rear end of said motor, and means for selectively rotating or retarding the free rotation of said controlling member.

47. In a mining machine, a machine frame slidabl-e on its bottom on a mine bottom, cutter mechanism carried thereby including a cutter" chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding means including flexible feeding portions acting on the opposite ends of said frame, a cooperating feed operating member rotatable on said frame for pulling the same laterally, and a cooperating feed controlling member rotatably mounted on said frame, a horizontal longitudinallyextending motor carried "on sale frame "in front ofsaid sprqlcket,

= driving connections between ,the rear end of said motor and said spro'ket, driving connections between said motor and said feed operating member disposed above the bottom of said motor,and means selectively operable to control the rotation of said controlling member in one direction or to cause rotation of the same in an opposite direcduring the feeding operation of said machine:

"48. In a mining machine, a machine frame? cutter mechanism carried thereby, a feed, operatingmember rotatableon a horizontal axis on said frame for pulling the some laterally, abooperating feed controlling member rotatably mounted on said ,frame and operative to retard the rear end of the same, ahorizontally disposed longitudinally extending motor carried on said frame, driving connections between the rear end of the same and said cutter mechanism and feed operating member, andrmeans inclu'ding a ratchet mechanism for selectively rotating said controlling member in one direction or controlling the free rotation thereof in an opposite direction during movement of said machine upon a mine hoti torn. i

v 49. In i1 mining machine, a frame, cutting mechanism thereon including a circulating cutter chain. a motor on said frame above the plane of said chain, a chain driving sprocket rotatable on a vertical axis to the rear of said motor, a machine feeding mechanism including a winding shaft extending in a horizontal direction and intersected by the axis of said sprocket at a point above the latter, and means foe effecting a variable speed drive of said winding shaft.

50. In a mining machine, a frame, cutting mechanism thereon, a motor on said frame having its armature shaft disposed longitudinall Y of said frame, said cutting mechanism including a driving sprocket rotatable on a vertical axis disppsed to the rear of said motor shaft and driven from the latter, and variable speed machine feeding mechanism including a winding member rotatable on an axis disposed in a vertical plane including the axis of rotation of said drivin sprocket and driving means therefor inclu ing a gear coaxial with said driving sprocket.

51. In a mining machine, a frame, cutting mechanism thereon, a motor mounted on said frame and having its armature shaft disposed longitudinally of said frame, a bevel gear rotatable on a vertical axis and driving said cutting mechanism, a bevel gear coaxial with said last mentioned bevel gear, and machine feeding mechanism having a driving shaft rotatable by said last mentioned bevel gear.

52. In a mining machine, a frame, cutting mechanism thereon, a motor thereon, driving mechanism between said motor and cutting mechanism includin a gear rotatable on a vertical axis fee mg mechanism adapted to be driven by said motor, and

means for connecting said motor with said feeding mechanism comprising means for selectively includingsaid gear in said feeding mechanism to vary the direction of feed thereof.

53. In a mining machine, a frame, cutting mechanismthereon, a motor thereon, driving mechanism between said motor and cutting mechanism inclu-din a gear rotatable on a vertical axis, fee ing mechanism adapted to be driven by said motor, and means for connecting said motor with said feeding mechanism comprising meansfor selectively including said gear in said feeding mechanism to vary the speed of feed thereof. i

54. In a mining machine, a frame, cutting mechanism thereon including a cutter bar and a chain rotatable faboutthe same, a motor, gearing between said-motor and chain including a chain driving sprocketand a driving gearj therefor rotatable on a vertical axis, feeding mechanism, and means including ,a reversible frictional clutch having an operating element reciprocable in a path perpendicular tothe axis of said driving sprocket for driving said feeding mechanism directly from said motor or at a different speed in an opposite direction through a part of said gearing.

55. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operating member on said frame, a motor disposed on said frame forward of said sprocket and with its power shaft arranged longitudinally of the frame, means for driving said feed operating member and sprocket from the rear end of said motor including a motor driven gear rotatable with said s rocket, and means driven directly by sai motor ;for driving said feed operating member at a different speed. D

56. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operating member whose axis lies in a common vertical plane with that of said sprocket on said frame, a motor on said frame, means for driving said feed operating member and sprocket from said motor including a motor driven gear rotatable with said sprocket, and means driven directly by said motor for driving said feed operating member in an opposite direction.

57. In a mining machine, a machine frame, cutter mechanism thereon including .a driving sprocket, a feed operating member on said frame, a motor on said frame, means for driving said feed operating mem her and sprocket from said motor including a motor driven gear rotatable with said sprocket, said gear and feed operating member being rotatable on axes disposed in a common vertical plane, and means driven directly by said :motor for driving said feed operating member at a different speed and in an opposite direction.

58. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operating memher on said frame, a motor on said frame,

means for driving said feed Cpperating member 'and sprocket from sai motor including a motor driven gear rotatable with said sprocket, and means including a member meshin with said gear and driven by said motor fbr driving said feed operating member at a different speed,the axes of rotation of said motor, said sprocket, and said last mentioned member lying in a common longitudinally extending vertical plane.

59. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operatin memher on said frame rotatable on an axis 1 ing in the same vertical plane as the nails 0 ro tation of said driving sprocket, a motor on said frame, means for driving said feed operating member and sprocket from said motor including a motor driyen gear rotatable with said sprocket, and means including a member meshing with said gear and driven by said motor for driving said feed operating member at a different speed and in an opposite direction.

60. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operating member on said frame, a horizontally disposed motor on said frame, means for driving said feed operating member and sprocket from the rear end of said motor includin Y a motor driven gear rotatable with saiil sprocket, and means driven directly from the rear end of said motor for driving said feed operating member at a different speed.

61. In a mining machine, a machine frame, cutter mechanism thereon including a driving sprocket, a feed operating memher on said frame, a horizontally disposed motor on said frame, means for driving said feed operating member and sprocket from the rear end of said motor including a motor driven gear rotatable with said sprocket, and means including a member meshin with'syad gear and driven by said motor or driving said feed operating member at a different speed.

62. In a mining machine, a machine frame slidable on its bottom on a mine bottom, outter mechanism carried thereby, including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding means comprising a flexible feeding portion extending forward from one end of the frame and a flexible feeding portion extending rearward from the opposite side of the fram'mmeans including a rotatable member suppqrted at the face whereby one of said portions may be disposed longitudinally of said frame during sumping in a double strand connection relative to the face and with the free end of its return strand fixed to the machine frame, feed operating means rotatable on said frame and acting on both of said flexible portions, a horizontally disposed longitudinally extepding motor on said frame driving said sprocket and l0ngitudinally spaced therefrom, and driving connections between said motor and both said sprocket and said feed operating means.

63, In a mining machine, a machine frame slidable on its bottom on.a mine bottom, ciitter mechanism carried thereby including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding means comprising a flexible feeding portion extending forward from one end of the frame and a flexible feeding portion extend: mg rearward from the opposite side of the frame, means including a sheave supported at the face whereby one of said portions may be disposed longitudinally of said frame during sumping in a double strand connection relative to the face with the free end of its return strand fixed to said machine frame, feed operating means rotatable on said frame and acting on both of said flexible ortions including take-up means on said rame adjustable to VII the effect of said second mentioned flexibe ortion, a horizontally disposed lon itudlnally extending motor on said frame on itudinally spaced from said sprocket, and riving connections between the same end thereof and both said sprocket and said feed operating means. 64. In a mining machine, a machine frame having longitudinal and transverse axes, cutter mechanism thereon, a feed operating member rotatable on a horizontal axis on said frame and operative to efiect bodily movement of said frame in the direction of said transverse axis, a horizontalllongitudinally extending motor on said frame, a horizontally disposed gear driven from the rear end of said motor, a cutter driving sprocket rotatable with said gear, and reduction mechanism driven by said or and connected between the same and said feed operating mem- 65. In a mining machine, a machine frame presentinga shoe with and upon which said machine may be moved universally'over the mine bottom, cutter mechanism carried thereby, flexible feeding means connectable to advance said machine bodily toward the working face or to move the same laterally transversely with respect thereto, a feed operating member rotatably mounted on said frame and cooperating with said flexible feeding means, a horizontal longitudinally extending motor carried on said frame, driving connections between the rear end of said motor and said cutter mechanism, drivin connections between said motor and said fee operating member, and rotatable means mounted on said frame for controlling the movement of the rear end of the frame dur ing lateral movement thereof.

66. In a mining machine, a machine frame, cutter mechanism carried thereby, feed controllin means comprising separate drum contro ed cables, each of said cables bein attached at one end to a drum, one of sai cables being adapted to cooperate by means of the portion not attached to a drum with a member in advance of the machine and to be wound in during the' feeding of the machine, and the other adapted to cooperate with stationary means at the receding sitb ofthe machine and adapted to be unwound as the machine moves away from said last mentioned means, said feed controlling means bein 0 table to vary the amount of free cab e between the machine and said stationary means, a horizontally dis osed longitudinally extending motor carrie on saidframe and driving said cutter mechanism, and driving connections between the rear end of said motor and said feed controlling means. i

67. In a mining machine, a machine frame, cutter mechanism carried thereby, feeding means for said machine comprising a pair of flexible feedin elements adapted to cooperate respective y with stationary means in advance of and to the rear of said machine as the latter makes a face cut, means for nrmally paying out one of said elements and reeling in the other at; equal rates, and means on said frame for increasing at will the free length of one of said elements more rapidly than the other is reduced, said feeding means comprising a drum rotatable about a horizontal axis, and a horizontal longitudinally extending motor on said frame driving said cuttei' mechanism and having driving connections between the rear end thereof and said feeding means.

68. In a mining machine, a machine frame, cutter mechanism carried thereby, feeding means for said machine comprising a pair of flexible feedin elements adapted to c0- operate respective y with stationary means said feeding means comprising a drum ro-.

tatable about a horizontal ilongitudinally extending axis and a horizontal motor on said frame driving said cutter mechanism and havin driving connections between the rear and t ereof and said feedin means.

69. In a mining machine, a mac inc frame universally movable over the mine bottom, cutting mechanism thereon including a cutter chain carrying cutter bar and a cutter chain driving sprocket, separate flexible feeding elements cooperating respectively with stationary means at opposite sides of said frame to move the latter during a face out while maintaining it in a predetermined angular relation to the face, winding means on said frame cooperating with said flexible elements, a horizontal longitudinally extending cutting mechanism driving motor on said .frame in front of said sprocket, and driving connections between the rear end of said inotor and both said winding meansand said sprocket. 70 \In a mining machine, a machine frame slide le on its bottom on a mine bottom, a

Ill

motor thereon,

slidable on its bottom on a mine ,motor thereon,

posed in front of said motor, driving connections between one end of said motor and said sprocket, and driving connections between the same end of said motor and said feed 0 crating member.

71. n a mining machine, a machine frame slidable on its bottom on a mine bottom, a cutting mechanism project: ing from one end of said frame including a cutter chain driving sprocket disposed on a vertical axis in rear of said motor and driven thereby, a feed operating member rotatable on said frame on. a horizontal axis and disposed in front of saidmotor, driving connections between one end of said motor and said sprocket, driving connections between the same end of said motor and said feed operating member, and a movable take-up carried on said frame in rear of said motor and adjustable independently of said feed operating member.

72. In a mining machine. a machine frame bottom, a cutting mechanism projecting from one end of said frame including a cutter chain driving sprocket disposed on a vertical axis in rear of said motor and driven thereby, a feed operating member rotatable on said frame on a horizontal axis and disposed in front'of said motor, driving connections between one end of said motor and said sprocket, driving connections between the same end of said motor and said feed operating member, and a take-up carried on and over the rear end of said frame on a vertical axis and adjustable relative to its axis independently of said feed operating member.

73. In a mining machine, a machine frame slidable on its brittom on amine bottom. a motor thereon including an armature shaft, cutting mechanism projecting from one end of said frame including a cutter chain driving sprocket giisposed on a vertical axis in rear of said motor and driven thereby, a feed operating member rotatable on said frame on a horizontal axis and disposed 111 front of said motor, driving connections between onefend of said armature shaft and said sprocket ,com rising a pinion on said shaft and ahorizontally disposed gear meshing with said pinion, a shaft/disposed in the same direction as the axis of said motor, driving mechanism between sa d second mentioned shaft and the same end of said armature shaft driving said sprocket, and driving mechanism between, said second mention d shaft and said feedoperating member.

745; In a mining machine, a machine frame slidable on its bottom on amine bottom, a horizontally disposed longitudinally extending motor thefwn, cuttingmechanism rojecting from one end'bf'said frame inc udmg a cutter chain driving s rocket rotatable on a vertical axisdispose in rear of said pendicular to the axis of said the rear end of said motor and motor, a feed operating member rotatable on axis, driving connections besaid motor and both feed operating memtake-up carried on an axis permotor.

In a mining machine, a machine frame slidable on its bottom on a mine bottom, a cutter bar carried at one end of said frame, a cutter chain rotatable about said bar, a horizontally disposed longitudinally extending motor on said frame, a cutter chain driving sprocket rotatable on a vertical axis and disposed on said frame in rear of said motor, a feed operatin member rotatable on a horizontal axis, riving connections between the rear end of said motor and both said sprocket and said feed operating member, and a take-up member carriedon said frame and movable independently of said feed operating member.

76. In a mining machine, a machine frame slidable on its bottom on a mine bottom, a. horizontally disposed longitudinally extending motor thereon, cutting mechanism projecting from one end of said frame including a cutter chain driving sprocket rotatable on a vertical axis disposed in rear of said motor, a horizontally disposed driving member disposed above said sprocket and driving the same, feed operating and controlling means including a feed operating memher and a take-up movable independently of said feed operating member, and driving connections between the rear end of said motor and said driving member and feed operating member.

77. In a mining machine, a machine frame slidable on its bottom on a mine bottom, a

a horizontal tween the rear end of said sprocket and said her, and a frame angling said frame adjustable about horizontally disposed longitudinally extending motor thereon, cutting mechanism projecting from one end of said frame includin a cutter chain driving sprocket rotatab e on a vertical axis disposed in rear of said motor, a horizontally disposed driving member disposed above said sprocket and driving the same, feed operating and controlling means on said frame including a feed operating member disposed on a horizontal axis and a manually controllable take-up, and driving connections between said driving member and feed operatin member disposed above the bottom of said motor.

78. In a mining machine, a machine frame slidable on its bottom on a mine bottom, a horizontally disposed longitudinally extending motor thereon, cutting mechanisrn projecting from one end of sa1d frame including a cutter chain driving sprocket rotatable on a vertical axis disposed in rear of said motor, a larger horizontall disposed driving member dis osed a ve said sprocket and driving t e same, feed operating and controlling means including a feed operating member disposed on a horizontal axis, driving connections between the rear end of said motor and said driving member, and reduction mechanism between the rear end of said motor and said new operating member. 1

79. In a mining machine, a machine frame, a horizontally disposed longitudinally extending motor thereon, cutting mechanism on. said frame including a cutter chain driving sprocket driven from the rear end of said motor and rotatable on a vertical axis disposed in rear of the front surface of said motor, a feed operating member ro tatable on said frame, and driving connections between the rear end of said motor and said feed operating member including reduction mechanism disposed on said frame in rear of the front surface of said motor and supplementa 1 reduction mechanism housed in said fee operating member.

80. In a mining machine, a machine frame, a horizontally disposed longitudinall extending motor thereon, cutting mec anism on said frame including a cutter chain driving sprocket driven from tlie rear end of said motor and rotatable on a vertical axis disposed in rear of the front surface of said motor, a feed operating member rotatable on said frame, and driving connections between the rear end of said motor and said feed operating member including reduction mechanism disposed on said frame in rear of the front surface of said motor and supplementarv reduction mechanism housed in said feed operating member and.

including an internal gear on said drum and a driving pinion meshing therewith.

81. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism carried by and projecting horn one end of said frame including a. cutter chain carrying cutter bar and a cutter chain drive sprocket, flexible feeding mechanism including flexible feeding portions disposed laterally from the advancing and receding sides of said frame and acting on the opposite ends thereof, a feed operating member on said frame, and a manually controlled take-up on saidframe, a horizontally disposed longitudinally extending: motor on said frame operatively connectahle to said sprocket, and feed driving means including a plurality of trains of mechanism driven from the rear end of said motor and disposed'in rear thereof whereby said advance flexible ,feeding portion may be drawn in by power at one speed as said receding portion is paid on or said receding portion may be drawn in by power at a higher speed. 82. A mining machine, a machine frame slidable ,on its bottom on a mine bottom, cutter mechanism carried by and rojecting froinone end of said frame including a cutter chain carrying cutter bar and a cutter chain drive sprocket, flexible feeding mechanism including flexible feeding portions disposed laterally from the advancing and receding sides of said frame andacting on the opposite ends thereof, a feed operating member on said frame, and a manually controlled takc-up on said frame, a horizontally disposed longitlulinallt extending motor on said frame operatively courier-table to said sprocket, and feed driving means including a plurality of trains of mecliunn n l, driven from the rear end of said motoi'finud disposed in rear thereof whereby saith advance flexible feeding portion. may be drawn in by iower at one speed as said receding portion is paid out or said receding portion may be drawn in by power at a higher speed under the control of said take-up.

In a mining machine, a machine frame slidablc on its bottom on a mine bottom, cub ter mechanism thereon including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding niechanisni including flexible feeding portions extending from said frame and acting on the opposite ends thereof, feed operating means. a horizontal longitudinally extending motor on said frame in front of said sprocket, a beveled gear on said frame in rear of said motor and rotatable with said sprocket, driving connections between the rear end of said motor and said beveled gear including a b'ovclc-l pinion and driving means for said fer-d operating means including a driving connection independent of said beveled gear and rotatable with said b vvlwl pinion.

8% .In a mining machine, a machine frame slidabie on its bottom on a, mine bottom, cutter mechanism thereon including a cutter chain carrying cutter bar and a cutter chain driving sprocket, flexible lateral feeding mechanism inclmling flexible feeding por tions extending from said frame and acting on the opposite curls thereof, iced operating means on said frame including a feed ()1)tratlngnieniber rotatable on a horizoiiitnl axis and an imlcpciulcntly movable tultcnp, a horizontal longitudinally extending motor on said frame in front of said sprocket, a beveled gear on said frame in rear of said motor and rotatable with said sprocket,

idriving connections between the rear cud of said motor and said beveled gear includin a beveled pinion, and driving means for driving said feed operating member including a driving connection independent of said bevel ed gear and rotatable with said beveled inion.

85. In a mining machine, a machine frame slidable on its bottom on a mine bottom, cutter mechanism thereon including a cutt r chain carrying cutter bar and a cutter chain driving sprocket, flexible feeding mechanism including flexible feeding portions extending from said frame and acting on the opposite ends thereof, feed operating means, a horizontal longitudinall extending motor on said frame longitudinally spaced from said sprocket, a beveled gear on said frame longitudinally spaced from said motor and rotatable with said sprocket, driving connections between one end of said motor and said 'beveled gear including a beveled pinion, and driving means for said feed operatinc means having provision for drawing in one of said portions and paying out the other substantially at the same speed or drawing in one of said portions at an increased speed. including a driving connection independent of said beveled gear and rotatable with said beveled pinion.

86. In a mining machine, a machine frame slidable on its bottom on a mine bottom, flexible lateral feeding means including flexible feeding portions extending in opposite directions from said frame and acting on the opposite ends thereof and a feed operating member rotatable on said frame, a horizontally disposed longitudinally extending motor on said frame in rear of said feed oper ating member, cutter mechanism on said frame including a cutter chain driving sprocket disposed between one end of said frame and the ad acent end. of said motor,

slidable on its bottom on a mine bottom. flex- ,36

iblelateral feeding means including flexible feeding portions extending in opposite directions from said frame and acting on the opposite ends thereof, a feed operating member rotatable on a horizontal axis on said frame, and a take'up on said frame movable independently of said feed operating member, a horizontally disposed longitudinally extending motor on said frame in rear of said feed operating member. cutter mechanism on said frame including a cutter chain driving sprocket disposed between one end of said frame and the adjacent end of said motor, and means for driving said feed operating memberand sprocket from the same end of said motor. a

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

MORRIS P. HOLMES.v Witnesses:

J. A. BRUcE, S. T. CHANDLER.

Certificate of Correction.

.0 is hereby certified that in Letters Patent No. 1,430,52i, gran ed September 26, 1922, upon the application of Morris 1. Holmes, of Claremont, New Hampshire, for an improvement in Mining Machines, errors appear in the printed epecifieation requiring correction as follows: Page 4, line 95, for the word grinding rend guiding; page 5, line 6, claim 6, and page 6, line 95, claim 19, after the word frame insert a commn; page 5, lines 51, 74, 97; and 120, claims 9,

10, 11', and 12', after the word frame strike out the comma; page "5, lines 86 and 1D0, cleims 10 end 11, and page 7, line 111, claim 27, after the word htorally. insert e'comma; page 8, line 64, claim 31, for the word fraflmle read mechmviam; page 9, line 110, claim 44, after the word sprocket insert l comma;

page ll; line 96, claim 62, after the word thereby strike-out the comma; page 12, lines and 100, claim 68, strike out the words longitudinally extem iing. LndinaertRthe same to follow the word horizontal in line 100; and thlt flae -sai 1 Letter; Pate nt should be read with these corrections therein that. the same I maj 'eonform to the record of the case in the Patent Ofliee.

. Signed arid-sealed this 26th day of ,December. A. D.,'1922. p

m KARL FEHNING,

' Acting Omrvmlan'omr of Patents.

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