US1538685A - Mining machine - Google Patents

Description

May 19, 1925. ,533985 F. CARTUDGE l MINING MACHINE] Originali Filed June 5, 1916 3 Sheets--Shee' l Iii/1 inten May 19, 1925. 1,538,685

F. CARTLIDGE MINING MACHINE Origina Filed June 5, 1916 :5 Sheetsheet g I les@ ay E9, 1925. 1,538,685

F. CARTLIDGE MNING MACHINE Original Filed June b, 1916 15 Sheets-3heet Il sisted. The sun gear 38 is fast on the shaft The sun gear 37 forms part of a sleeve 39 rotatably mounted on the shaft 33 and located between such shaft and the sleeve 32. A sliding sleeve 40 has slidable toothed engagement with the sleeve 39 and 1s slidable in either direction along such sleeve a finger 41 which may be operated by a shift lever 42. The sleeve 40 is provided with clutch teeth at. both ends so that when slid in one direction from the'neutral position in which it is free from any locking engage ment, the teeth 43 on one end engage teeth 44 on the sleeve 32 to lock together the sleeves 32 and 39 and thus cause the sun and planet mechanism to rotate as a unit; and when slid in the other direction from neutral position teethft on the other end of the sleeve 4() engage teeth 46 on a brake Wheel 47 loosely mounted onthe shaft'i and cooperating with a brake band 48 which may he set or released by an operating handle -49 to hold stationary or permit any desired slipping of the brake wheel 47. The shaft 33 constitutes a driving member both for a feed operating member or drum 50 and a cooperating controlling member, takeup member, or paying out drum 51 shown respectively at the left and right hand sides of Figs. l and 3. For driving the member 50 the shaft is provided atr its lett. hand end, looking forward, with a driving' pinion 52 which. meshes with an internal gear 53 on such member in one position of the latter. The feed operating member or Winding drum 5() is mounted on an er fentrie bushingr Fiel which is in turn mounted on a stub shaft 55 around which it is adjusteble by an operating handle 56 to shit't the gear 53 into and ont ot mesh with the pinion 52. From Figs. il and 7 it will be notedr that the operating handle may assume different predetermined positions for the oonnecied and disconneci ed position of the drum 50.

For driving the paying out. drum or takeup member 51`r the shaft 3S has keyed on'its right hand end. looking forward, n sleeve 57 which at, its inner end is provided with gear teeth to provide a sun gear 58 and at its outer end forms n bearing surface for a rotatably mounted sleeve 59 which carries a plurality of planetary gears 60 which mesh with the` sun gear 58 and with an internal gear fil on the inside of such paying' ont drum or take-up member 5l. The pins G2 on whivh the planet gears are mounted are carried at their right hond en ds in the sleeve 59 and on their left hand ends carry a brake wheel 63 with which there cooper ates a brake band 64 which may be set or released by an operating handle do to hold stationary or to permit any desired dipping of the brake wheel 63. The sleeve 59 has an outer annular portion 66 between, which masses and tthe main portion of the sleeve is anV annular space into which proieots an annular sleeve member (3? carried by and c onstituting the bearing portion of the paying out drum 51, the member 67 being journaled on the sleeve 59 so that it supports the paying out drum. The outer surface of the annular member I-i and the inner surface of the annular portion G6 are toothed to eng ge with alternateiones of e series of eluteh discs 68 which 'are loi-ated between the parts 66 and 6T. The outer end of the sleeve 59 is threaded and has mounted thereon a Clutch setting nut 69 provided With an op erating ring 70 by which it may be rotated tolengage with greater or less pressure the web by which the paying out drum 51 is mounted on the annular member 6? so as to cause more or less firm interengogeinent of the clutch discs 68. It should be noted that the teeth of the internal gear 6l are of such length andthe ports ot sueh construction that a certain degree of movement of the drum 5l longitudinally of the shaft 32? is permitted.

At this point it should be noted that the drum 51 is smaller than the drum 50, but by reason of the reduction oerasioned by the driving of the drinn .50 throngh the pinion 52 and internal gear 53 the drum 5l, when the operating ring 7G is moved to elieot the looking of the parts as iater explained so that the drum 51 rotates at the same angular rate the shaft 33. will have a greater peripheral speed than the peripheral speed ot the drum 50. On the other hand, when tho drum 5l is driven at the reduced rate which is neemnplished by drivinf.,r the internal rear 6l through the planet gears 6) andsnn gear 5S the peripheral speed of the drum 5l will be less than that of the drum 5G and` moreover, the drum 51 will rotate in the opposite direction to drum 50.

The feed operating member or winding drinn 50 and the take-np member or paying out drum :'31 are herein shown as adapted to t-ooperate with :i chain comprising portions 74 und 75 and en intermediate bight 76 having! suficient slack to permit the necessary independence of action of the drums 50 and 5l. The chain may be carried through a suitable guide block 77 and over pulleys or' sheaves 78. 79, 80 and 81 or some of them at the far rorners of the frame 15, and over a pulley 82 between the pullevs or sheaves 78 and 79. These various pulleys or sheaves, or such of them as desired. may have swinging or swivel mounting. By means of these various nlleys or sheaves the chain may be 12: carried rom the drums or members 50 and 51 in different directions fbr getting different directions of movement.

in order to keep the parte properly lubricated, and free from the dust which always la Dit ion

' bodied in other forms upon this bie-ht is seen in Figs. 8, 9 and 10. ln the first of these views there is shown diagrammateally a machine with its bar perpendicular to the face and the bight 7G between the feed operating and take-up members is clearly shown. Tn Fig, 9 the machine is shown with the cutter bar ln advance of the rear end of the machine by quite a substantial amountt a somewhat extreme case beirutr shown for demonstration purposes. Here it will be noted that more cham has been taken in by the feed operating member 50 than has been paid out by the take-up member l so .that the amount of chain inthe hight has been increased, thereby increaeingr the length ot' the portion of the chain between the points at which the chain iea'ves the machine frame at its opposite ends. (lt course it will be nnderstood that a corresporuling position of the niachine relative to the working face may he secured in various other ways, for example, by releasingr the drum b v means of the handle 56, reversing! the motor. poliing the rear end ol' the machine around by the drum 5l and the portion To of the chain, after which the motor might again be run in its original direction, the operator throwingr the bandle 56 to cause the drum 50 to become active :1nd so that the machine Will` more ahead as previously described. It. may be noted, moreover, that by reason of the, tact that the member 5l tends to pay ont the portion n tore slowly than the portion 74 is wound in by the mcmben, a iosition corresponding Yto that shown in lig, I?, would he reached automatically unlees the friction band 64 were allowed tov slip. Fig. 'lil shows a position of the machine in which the rear end of the machim` has been allowed to get ahead of the cutter bar, this being accompiished, for example, by slackening up on the brake band 64 so that the portion 75 of the chain is paid out more rapidly than the portion 74 is wound in. ln this operation of the parte it will be noted that the slack biglit been snbstanf ially diminished and that there `ie less cham between the points at which the feed operatingl member leaves the machine at its opposite ends than in either of the other two positions.

While I have in this application specifically' described one form which my inven tion may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and em- O without departing from its spirit or the scope of the appended claims. 4

What I claim as new and cure by Letters Patent is:

1. In e mining machine, a, frame, Jectmg outta: carried thereby,

desire tb seproa wi'izding drum, a paying-out drum, and a tension member extending in a slack bight between the two drums and extending from the vrindn drinn forward from the frame near the en toward the cutter and from the payingput drum backward from the frame at a point farther from the cutter end, and means for operating said two drums so that the'paying-out, operation is slower than the winding operation 2. In a mining machine, a frame, a pro jecting cutter carried thereby, a. winding drum, a paying-out drum, and a tension member extending in a slack bight between the two drums and extending from the winding drum forward from the frame near the end toward the cutter and from the paying-out drum backward from the frame at a point farther from the cutter end.

3. In a mining machine, a frame, a projecting cutter carried thereby. a windingr drum, a paying-out drum. a. tension member extending: in a slack bight between the two drums and extending from the Winding: drum forward from the frame near the end toward the cutter and from the paving-out drum backward from the frame at a point farther from the cutter end, and means for operating said two drums at diF- ferent speeds.

4. l'n a mining machine, a frame. a proiectingr cutter carried thereby, a winding dr 1ro. a. paying-out drum` a tension member extending in a` Slack bight between the two drains and extending from the winding drum forward trom the frame near the end toward the cutter and from the paying-out drum backward from the frame at a point farther from the cutter end, and means for varying; the relation in the speeds of said two drums to vary the slackness of said blght.

5. In a miningr machine, a frame bodily elidable laterally relative to the mine bottom, a projecting: cutter carriedzthereby, a tension member extending forward from said frame at a point near the end toward the cutter and backward from the frame at a point farther Jfrom the cutter end and hav ing a portion between said two pointe, a feed operating member engaging said last named portion, and winding means cooperating directly with said tension member for controlling the length of said portion. 6. In a, mining machine, a. frame slidable laterally on the mine bottom, a projecting cutter carried thereby, mechanism for feeding;r said frame laterally including a tension member extending' in opposite directions from points adiacenti the opposite ends of said frame and a, feed operating member engaging a portion of said tension member between said points, and winding means cooperating directly with said tension .mem, Vlier for controlling the length .of said' last.

points, sai D ing said las't named portion, and win a portion extendingl mentioned portion during the cuttirgr operi tion. i

7. In a mining machine, a frame bodily slidable laterally relative to the mine bottom, a projecting cutter rigidly carried there a tension member havin a portion exten ing forward from said frame at a point near the end toward the cutter and backward from the frame at a point fart er from the cutter and also Having a portion between' said two points, a feed operating member engaging said last named portion, and winding means cooperating directly with said tension member for controlling the length of said last mentioned portion andl the length of one of said oppositely extending rtions.

8. In a mining machine, a fioame slidable laterally relative to the mine bottom, a projecting' cutter carried thereby, a tension member having a portion extendin from said frame at a from the cutter and also having a portion between said two points, and means kincluding a feed operating member and a take` up member each en aging said last named rtion for control ing the length of the Egt mentioned portion and the lengths of said oppositely extending portions.

In a mining machine, a frame slidable bodily laterally relative to the mine bottom, a projecting cutter carried thereby, a feed operating member carried thereby, a tension member cooperating with said operating member and exten ing forwardfrom said frame at a. point hear the end toward the cutter and backward from the frame at a point farther from the cutter end and also havin` a rtion between said two flfeedpiperating member enag ing means cooperating directly with said ten sion member for controlling the length of said portion.

10. In a minin machine, a frame slidable laterally on t ie mine bottom, a projecting cutter rigidly connected thereto and carried thereby, a feed operating member carried thereby, a tension member coopera-ting with said operating member and extending forward from said frame at a mt adjacent. the cutter end thereof and ackward from the frame at a point farther'l from the cutter end thereof and also having a portion between said two points, a feed operating member engaging said last 'named portion, and winding means cooperating d irectly with said tension member for controlling the length of said portion during the cutting operation.

11. In a mining machine, a nnltary selfpropelled mnin machine slidable on the mine bottom, :in including a frame, a .pro-

.jecting cutter bar thereon,

a feed o rat' l and a tension mexiieber bib-g operating with said operatin member and extending forward from sai frame et a point adjacent one end thereof and backward from said frame at a point adjacent the other end thereof and also having a por tion between said two points, said feed operating member engaging said last nmed portion, and winding means cooperating directly with said tension member for controlling the length of said portion dm'-i mg the cutting operation.

12. In a mining machine, a frame bodily slidable laterally relative to a mine bottom a projecting cutter carried thereby, a f operating member carried thereby, a tension member hoogst-ating with said o erating member and aving a portion extenth'iig for ward from said frame at a point nearthe end toward the cutter and a portion extendI backward from the frame at a point farther from the cutter end and also havin `a portion between said two points, sai feed operating member engaging said last named portion, and winding means between said o erating member and said backwardl exten ing portion cooperating directly wit said tension member for controlling the length of said last nfentioned portion.

i3. In a mining machine, a frame slidable bodily relative to the mine bottom, a projecting cutter carried thereby, a feed operating member carried thereby, a tension member coo erating with .said operating member an extending forward and rearward from said frame at points adjacent the opposite ends thereof and having a portion between said points, said feed operating member engaging said last named portion, and a movable cooperating winding member cooperating directly with said tension member and adjustabie to control the length of said portion.

14. In a mining machine, a frame slidable on the mine bottom, a projecting cutter carried thereby, and mechanism for feedin said frame laterally comprising a feed operating member carried thereby, a tension member cooperating with said operatin member and extending forward from sai rame 'at a point near one end thereof and backward from thev frame at a point near the other end thereof and also having a portion between said two points, and a cooperating member movable about a horizontal axis and enga ing sai'i portion at a oint tween one o said points and the fee operatin member.

15. n a mining machine, a frame slidable cin-the mine bottom, a projecting cutter carrie-:i thereby, and.mechanisin for feeding said frame laterally comprising :i feedoperating member carried thereby, a tension member cooperating with said operating member thereon,

'iti

member, and extending forward from said frame at a point near the end toward the cutter and backward from the frame at a point adjacent the o posite end thereof and also having a por ion between said two points, and a cooperatingmember movable about a horizontal axis and engaging said portion at a point between said feed operating member and said second mentioned point.

16. In a mining machine, a frame slidable on the mine bottom, a projecting cutter rig; idly connected thereto and carried thereby, a feed-operating member carried thereby and rotatable on a transverse axis, a tension member cooperating with said operating member and extcndlng forward from said frame at a point near the end toward the cutter4 and backward from the 'frame at a point adjacent the opposite end thereof and also having a portion between Said two points, and a member cooperatingr directly with said tension member and rotatable about a transverseiy extending which lies in a line passing within the circunifer ence of said feed operating member and controlling the length of said last mentioned portion.

l?. In a mining machine, a frame, a rojecting cutter carried thereby, a win ing drum, a paying out drum, a tension member extending between `raid two drums and extending from the winding drinn forward from the frame near the end toward the cutter and from the paying-out drum backward from the frame at a point farther from the cutter, and means for driving said two drums so that the paying out operation is slower than the winding operation.

18. In a mining machine, a frame, a rojccting cutter carried thereby. a win ing drum, a payingont drum. a tension meinber extending; between said. two drums and extending from the winding drum forward from the frame near the end toward the cutter and from the paying-ont lrum back-- ward from the frame at a point farther from the cntterr and' means cooperating directly with eaiddrinns so that the payingont ope 1ation is eiower than the windingl operation.

19. In a mining n1achine.a frame, arprojectingV cutter bar carried thereby. a Ywinding drnmv a paying-ont drinn. n flexible member providing flexible feeding portions extendingY from the winding drinn iorward from the frame near the end toward the cutter and from the payingbnt drum backward from the frame at :i point 'farther from the cutter end. and means for rotating Said drums by power so that the paying-ont operation is ,slower than the Winding operation.

20. In a miningr machine` a machine trame', a projecting cutter carried thereby. a winding dram, a paying-out drinn, anda tension member extendn from the winding drum forwardly from tIie frame near the end toward the cutter and from the paying-out drum backward from the frame at s, point farther from the cutter end and comprising a portion between said drums, the coaction between said drums and said lfirst and second mentioned portions preventing a transmission to the third mentioned portion of the tension under which either of the first men tioned portions is placed.

21. In a mining machine, a traine, a projecting cutter carried thereby, a winding drum, a paying-out drum, a tension member having a portion extending between the two drums and also vhaving,r ortions extending from the winding drum orwardly from the frame near the end toward the cutter and from the paying-out drum backward from the frame at a point farther from the cutter end, and means for operating said two drums at different speeds.

22. In a mining machine, a frame, a rojerting cutter carried thereby, a winding drinn, a paying-out drum, a tension meniber including a portion lying,r between the two drums and tively from the winding drum forward from the frame near the Vend toward the cutter and from the paying-out drum backward from the frame at a point farther from the cutter, and means for varyingr the relation between the s eeds of the two drums to vary the length of t e portion between said drumsY 223. In a mining machine. a frame bodily slidable laterally relative to the mine bottom.

a projecting cutter carried thereby, a'feed operating: member on .said frame rotatable by power and operative to cooperate with a fiexible feeding portion to move the machine toward the remote end of said feeding portion, a iexible feeding portion cooperating therewith and extendingp to a point in ailvance of the machine. a rotatable element on said freine adaptedto cooperate with a flexible feeding portion to retard the morement of .said frame away from the remote end of such portion, n iexible feeding por tion cooperating with said element and extending to a` point in the rear of said frame as regards its vdirection of movement, e lexible portion connecting said first and ortions extending respec-V second mentioned iiexible feeding; portions.

and constituting therewith a continuons dei ible feeding member. and means cooperat ing! with said rotatable element to brake the rotation thereof.

24'. In a miningr machine, a frame bodily slidablc laterally reiative to the mine bottom, a projecting cutter carried thereby, a feed operating member on said frame rotatable by power and operative to cooperate n ith a flexible feeding portion to move. the machine toward the remote end of said feeding portion, e iiexible feeding portion oooperating therewith and extending to a point in a vance of the machine, a rotatable element on said frame adapted to cooperate with a flexible feeding portion to retard the movement of said frame away from the re-l mote end of auch portion, a flexible feeding portion cooperating with said element and extending to a point in the rear of said frame as regards its direction of movement, a flexible portion connectin said first and second mentioned flexible ceding portions and constituting therewith a continuous lexible feeding member, and means cooperatin directly with said rotatable element to e fect rotation thereof by power.

25. In a mining machine, a frame bodily slidable laterally relative to the mine bottom, a projecting cutter carried thereby, a fecd operating member on said frame rotatable by power and operative to cooperate with a ilexible Yfeeding portion to move the machine toward the remote end of said feeding portion., a llexible feedin portion cooperating therewith and exten ing to a point in advance of the machine, a rotatable element on said frame adapted to cooperate with a flexible feeding portion to retard the movement of said frame awa from the remote end of auch portion, a flexible feeding portion cooperating with said element an extending to a point in the rear of said frame as regards its direction of movement, a flexible portion connecting said first and second mentioned lexible feeding portions and constituting therewith a continuous lexible feeding member, and means coo erating with said rotatable element to seectively' brake the rotation thereof or eect the rotation thereof by power.

26. ln a mining machine, a frame bodily slidable latcrally'relative to the mine bot tom, a projecting cutter carried thereby, a tension member extending forwardfrom said frame at a point near the end toward the cutter and backward at a point farther from the cutter and having a portion between said two points, and means controlling the length of said portion including but two operatorcontrolled llcxilile portion engaging elements and theyr rotating on axes fixed relative to said frame.

2T. ln a mining machine, a frame bodily slidable laterally relative to the mine bottom, a projecting cutter carried'thereby, a tesion member extending forward from said frame at a point naar the end toward the cutter and backward at a point farther from the cutter and having a portion between said two points, and means controlling the length of said portion including but two operatoocontrolled flexible portion engaging elements and they rotating onaxes fixed relative to said frame and means for rotating one of the same by power.

In a mining rnnczhinc, a frame bodily fsaid franz:K at o slidable laterally relative to the mine bottom, a projecting cutter carried thereby, a tension member extending nforward from point near the end toward the culti-r and backward at a point farther from thiwotter and having a portion between said two cinte, and means control ling the length o said portion including but two flexible portion en aging winding elements rotating on axes ed relative to said frame and means for rotating both of the same by power.

29. In a mining machine, a frame bodily slidable laterally relative to the mine boo tom, a projecting cutter carried thereby, a tension .member extending forward from said frame at a point near the end toward the cutter and backward at a point farther from the cutter and having a portion between said two points, means controlling the length of said portion including but two flexible portion engaging winding elements and they rotating on axes fixed relative lo Said frame, and means for rotating the same by power in the same or opposite directions.

30. In a mining machine, a frame bodily slidable laterally relative to the mino hetl tom, a projecting cutter carried thereby, a tension member extending forward from said frame at a point near the end toward the cutter and backward at a point farther from the cutter and having a portion heY tween said two cinte, and means controlling the length o said portion including but two flexible portion engaging windin elcmente each rotating on an axis fixed re ative to said frame, and means for rotating the same by power in opposite directions at unequal s 31. In a mining machine, a frame bodily slidable laterally relative to the mine bottom, a projecting cutter carried thereby, a tension member extending forward from` said frame at a point near the end toward the cutter and backward at a point farther from the cutter and having a portion between said two points, and means controlling the length o -said portion including but two flexible portion engaging winding elements and they rotatin on axes fixed relative to said frame, anfmcans for rotatin the same in the same direction at equa speeds.

32. In a mining machine, a frame bodily slidable laterallylmelative to the mine bottom, a projecting cutter carried thereby, a tension member extending `forward from said frame at a point near the end toward the cutter and backward at a point farther romt he.cutter and' having a portion hetween-said two points, means controlling the length of said portion including but two flexible portion engaging winding elements and they each rotating on an axis fixed relative to Said frame,

and means for rotating i ill) llt

the same at unequal predetermined'speeds in the same direction, said means including means for eti'ecting rotation of the element rotating et the faster-prcdetermined speed at substantially the. same speed :is the slower predetermined speed.

33. The combination, in a mining machine, with cutting mechanism, of feeding mechanism therefor comprising a driving motor, a shaft, a plural-speed connection be tween said motor and said shai'twhereby the latter may be driven at a plurality of predetermined speeds by the former, two feed operating members operatively connectible with said shaft, means for connecting one of said feed operating members to said shaft for driving thereby at a plurality of predetermined speeds while rotation of said shaftremnins constant, and a continuons flexible feeding ineniber cooperating with both of said'feed operating members at points between its ends.

34. In a minin machine, the combination with cutting mec ienism, of feeding mecha` nism therefor comprising a driving motor, a shaft, a plural-speed ,connection between said motor and said shaft whereby the latter may be driven at n lurality ofpredetermined speeds by the ormer, two feed operating members operatively conne'ctble with said shaft, means for connecting one of said feed operating members to said shaft for driving thereby at a predetermined speed in one direction and at a different predetermined speed in the opposite. direction vi'hile rotation of said shaft remains clonstant, and a continuous flexible feeding member cooperating with both of seid feed operating members at points between its ends.

35. The combination in a .mining machine of cutting mechanism and 4feeding mechanism therefor comprising a driving motor for both mechanisms, a shaft, a plural-speed connection between said motor and said shaft whereby the latter may be driven ai a plurality of predetermined .speeds by the former, two feed operatin members operatively connectible with sait shaft, means for connecting one of seid feed operating members to said shaft for driving thereby at a predetermined spoed in one direction land at a dili'erent predetermined speed in the opposite direction while rotation of said shaft remains constant. the angular rate of one of said predetermined speeds being equal to the angular rate of rotation of said shaft, and a continuous exible feeding member cooperating with both of said feed operating members at points between its ends.

36. The combination, in a mining machine, of cutting mechanism and feeding mechanism therefor comprising a driving motor for both of said mechanisms, a shaft, a plural-speed. connection between said motor and said shaft whereby the latter may be driven by the former, two'fee operating members loperatively connectible with said shaft, meansA for connecting one of Vsaid feed operating members to said shaft for driving thereby at a predetermined speed in one direction and at a different predetermined speed in the opposite direction while rotation of said shaft remains constant, said means for connecting said feed operating,r member to said shaft including friction mechanism controllable to vary the rotation et' said drum from said predetermined speeds. and a continuous flexible feeding member cooperating with both of seid feed opratingf members at points between its en s.

3T. The combination with a mining ma chine, of feeding mechanism therefor coniprising a driving motor, a shaft, a plural predetermined speed driving connection between said motor and said shaft whereby the latter ma be driven at a plurality of predctermine speeds by the former, two feed operating members operatively connectible with said shaft, means for selectively connecting said feed operating members in driven relation to said shaft operative to wholly disconnect the same from the latter, and a continuous flexible feeding member operatively engaging cach of saidfeed operating members at points between its ends.

38. ln a .mining machine, feeding mechanism comprising al driving motor, a shaft, a plural predetermined speed connection hetween said motor andysaid shaft whereby the latter may be driven at a plurality of predetermined epeeds by the former, said connecton including friction mechanism adjustable to variably diminish the speed of said shaft from one of said predetermined speeds, two feed operating members operatively connectible with said shaft, and means for selectively connecting said feed operating members in driven rciation to said shaft operative to Wholly disconnect the same from the latter, and a continuous flexible feeding member operatively engaging each of said feed operating mem ers at points between its ends.

39. In a mining machine, a frame having a forwardly projecting cutter bar, a motor on said frame, a feed operating member rotatable on a. transverse axis at one side of said frame. a flexible feeding member cooperating therewith and adapted 'to be am chored at its opposite ends at opposite sides of said machine frame during cutting across a face, operative connections between said 1 feed operating member and Said motor including intermeshing elements respectively coaxial with said feed operating member and fixed as to relative rotary movement with respect thereto and constituting a Htl of rotation of one of said elements.

10. ln a mining machine, a frame having a forwardly projecting cutter bar, a motor on said frame, a feed operating member rotatable on a. transverse axis at one side of said frame, a flexible feeding member cooperating therewith and adapted to be anchored at its opposite ends at opposite sides of said machine frame during cutting across a face, operative connections between said feed operating member and said motor including intermeshing elements respectively coaxial with said feed operating member and fixed as to relative rotary movement with respect thereto and constituting a driving member for said last mentioned element, and means for interrupting said drive including means for bodily arcuately moving the axis of rotation of one of said elements.

41. In a mining machine, a frame having a forwardly projecting cutter bar a motor on said frame, a feed operating m ber rotatable on a transverse axis at one side of said frame, a flexible feeding member cooperating therewith and adapted to be anchored at its opposite ends at opposite sides of said machine frame during cutting across a face, operative connections between said feed operating member and said motor including intermeshing elements respectively coaxial with said feed operating member and fixed as to relative rotary movement with respect thereto and constituting a drivin member for said last mentioned element, an means for interrupting said driving connections including a rotatably mounted ec-4 centric supportingr said feed operatip member and rotatable to bring sai first mentioned element into mesh with said second mentioned element and to move it out of mesh'.

42. Iii a mining machine, a frame, cutting mechanism thereon and feedin mechanism thereon including a flexible feeding member normally extending laterally in opposite directions from opposite ends of said frame and a laterally extending feed o erating member, and guiding means for said) flexible member for directing said frame transversely during cutting iiicludin a laterally extending guiding member disposed adjacent said feed operating member.

43.- In a mining machine, a frame, cutting mechanism fixed thereon, feeding mechanism for said frame including a flexible feeding member normally extending laterally in opposite/directions from o osite ends of said frame, a laterally extending feed operating member, and guiding means for said flexi ble lmember including a pair of guiding members disposed adjacent to said fe` d operating member and at opposite sid s of a plane inpluding the axis of rotation of the atter.

44. In a mining` machine, a frame slidable on its bottom on a. mine bottom, cutting mechanism thereon includin connected lon'itudinally extending cutter bar, and feeding mechanism thereon for feeding said frame bodily laterally including a flexible feeding member, a feed operating member rotating on a transverse axis and projectingr laterally from one side of said frame, and guiding means for said flexible feeding member adjacent said feed operating member and also at'the opposite ends of said frame.

45. Iii a mining machine, a frame slid able. on a mine bottom, cutting mechanism thereon including a rigidly connected longitudinally extending cutter bar, and feedi `mechanism thereon including a flexible feeding member extending laterally in opfposite directions fi-om the opposite ends o said frame, a feed operating member extendin laterally from one side of said frame, an guiding means for said flexible member disposed adjacent said feed operating member a rigidly i and also at the opposite ends of the same side l of said frame.

46. In a mining machine, a frame slidable on a mine bottom, cutting mechanism thereon including a rigidly connected lon itudi nally extending cutter bar, and ceding mechanism thereon including aflexible feeding member extending laterally in opposite ,directions from the opposite ends of said iframe. a feed operating member extending laterally from one side of said frame, and guiding means for Laid flexible member including a pair of guiding members disposed adjacent said feed operating member and guiding members at the opposite ends of the same side of said frame.

47. In :i mining mechanism, feeding mechanism including a lurality of feed driving elements, a singllii flexible feeding meniber engaginof said elements, and means for using one o? said elements as a feed operating i'nembcr and the other Yas a takeup 48. In a mining machine, feedin mechanisiii including feed operating an take-up members rotatable on transverse axes, means cooperating directly therewith for effecting rotation thereof at different speeds, and a continuous flexible feeding member engaging both of the same.

.49. In a mining machine, feedin mechanisiii including feed operating an take-up members rotatable on transverse axes, means cooperating directly therewith for effecting rotationthereof simultaneously at different speeds, and a continuous flexible feeding member engaging both yof the same.

50. In a room and pillar mining machine, cutting mechanism and flexible feeding lun means includin feed operating and take-up members rotata le on transverse axes and located at the opposite sides of the machine, means for driving said feed operating and take-np members independently of each other, and a continuous flexible feeding `member operativelyr connected to said feed operating and take-up members during transverse cutting.

51. In a room and pillar mining machine, cutting mechanism and flexible feeding means including feed operating and take-up members rotatable on ltransverse axes and located, at the opposite sides of the machine, means for driving said feed operating and take-up members cooperating directly therewith, and a continuous flexible feeding member operatively connected to said feed operating and take-up members during transverse cutting.

52. The combination with a room and pillar mining machine, of feeding mechanism thereon including feed operating and tinte-np vmembers rotatable on transverse axes and located on the `opposite sides thereof, a continuous flexible feeding element operatively connected to both of said members, and means for rotating said members simultaneously or either of the same at will.

53. ln a mining machine, a machine frame. feeding mechanism thereon including feed operating and take-up members rotatable on transverse axes and located on the opposite sides of said frame, an idler located on a arallel axis adjacent each of said members, and a flexible feeding member engaging said members and said idlers.

54. In a mining machine, a machine frame, feeding mechanism thereon including feed operating and take-up members rotatable on transverse axes and located on the opposite sides of said frame, a continuous flexible feeding member engaging both of said niembers, guidinfr idlers therefor located on parallel axesadjacent one of said member, and cooperating guiding means for directing the opposite ends of said flexible member laterally from opposite ends of said frame.

55. In a mining machine, a frame slid` able laterally on the mine bottom. a projecting cutter carried thereby, mechanism for feeding said frame laterally including a tension member extending in opposite directions from points adjacent the opposite ends of said frame and a feed operating member engaging a portion of said tension member between Said pointand winding moans rooperating directly with said tension uumber for controlling th length of said last mentioned portion during the cutting operation.

56. In a mining n1 bine, a' frame having a forwardly projectir cutter bar and feeding mechanism inclucing a single continnous flexible feeding member, a rotatable feed operating member adapted to cooperate directly with said flexible feeding meniber at a point between the ends of the latter and rotatable on a transverse axis at om` side of said frame, arooperating rotatable member rotating on a transverse axis at the opposite side of said frame and also cooperating direc-tlv with said llexible feeding member at a point between the ends of the latter, a motor on said frame, means for driving said first mentioned rotatable member from said motor, and means for driving said last mentioned rotatable member from said motor in opposite directions at different speeds.

57. A mining machine comprising a` frame slidable on the mine bottoni and a projecting cutter bar, and means for feedmg said frame and guiding the same during cutting and at other times including a flexible feedingr member providing a plurality of flexible `feeding portions disposable duringr cutting transversely of a face in opposite directions from the opposite ends of said frame, and feed operating and controlling means including rotatable feed operating means cooperatingr with said flexible feeding member, and driving means for Said rotatable feed operating 1means operable without reversal of said motor to cause winding in of one of said portions at a pre determined cutting speed and 'to cause the drawing in of the other flexible feeding portion at a higher predetermined cutting speed or at a still higher predetermined machine moving specd which exceeds the maximum potential cutting speed of said machine under normal working conditions.

58. In a mining machine, feeding mechanism including feed operating and take-up members rotatable on transverse axes,mcaus for driving each of the saine by power to cllert rotation thereof. and a continuous llcxble feeding member engaging both of lsaid members.

al). ln a mining machine, feeding morbanisui including feed operating and take-up members rotatable on transverse stationary axes, anda continuous flexible feeding mouibcr engaging b'oth of the same.

G0. In a mining machine, feeding mechanism including frictionally controlled feed operating and take-up members rotatable on transverse axes, and a continuous flexible feeding member engaging both of the same.

(3l. ln a mining machine. feeding mechanism including feed operating and take-up members rotatable on stationary transverse axes at different predetermined speeds, and

a continuous flexible feeding member engaging both of the same.

62, The combination with a room and pillar mining machine, of feeding means including Vfeed operating vand take-up members rotatable thereon on transverse relalll) tively fixed axes, a continuous flexible feed- 4ing member engaging said members, and

4sides thereof, a continuous flexible feeding member, and means for operatively connecting the latter to said members to feed said machine laterally.

64. The combination with a room and pillar mining machine, of flexible feeding means thereon includin-g feed operating and take-up members rotatable on transverse axes and located on the opposite sides thereof, a continuous flexible feeding member operatively Connected to said members, and means for actuating said members to feed said machine toward either end of said flexible member.

65, The combination with a room 'and pillar mining machine, of feeding mechanism thereon including feed operating and take-up members mtatable on transverse axes and located on the opposite sides thereof, a continuous flexible element operatively connected to both of said mem 1ers, and means for rotating either member.

66. The combination with a room and pillar mining machine, of feeding mechanism thereon including feed operating and take-up members rotatable on transverse axes and located on bhe opposite sides thereof, a. continuous flexible feeding element operatively oonneded Ito both of said members, and means for rotating either member at different speeds.

67. The combination with a room and pillar mining machine, of feeding mecha- "ism thereon including feed operating and take-up members rotatable on transverse stationary axes and located ou the opposite sides thereof, a continuous flexible feeding element operatively connected to both of said members, and means for rotating snid members simultaneously.

68. The combination with a mining machine frame slidable on its bottom on a mine bottom, of a laterally extending feed operating member thereon, a continuous lexible feeding member cooperating with snid feed operating member and extending around the same on one side of said frame und iu opposite directions from the oppo- .site ends of said frame, a laterally ext'cnding guiding menus adjacent said feed opemting member around which the slack side of said flexible feeding member is extended, nml a cooperating laterally extending guiding member engaging the tight side of said flexible feeding member :it a point in front of said feed opemling member.

69. In a. mining machine, a frame, cutting mechanism thereon, feeding mechanism thereon including 'a flexible feeding niember normally extending laterally in opposite directions from opposite ends of said frame and a laterally extending feed operating member, and guiding means for said flexible member for directing said frame transversely during cutting including a laterally extending guiding member rotatable on a pivot disposed above the bottom of said operating member.

70. In a mining machine, a frame` cutting mechanism fixed thereon, feeding mechanism for said frame includin a flexible feeding member normally extending laterally in opposite directions from opposite ends of said frame and u, laterally extending feed operating member, and guiding means for said flexible member for directing said frame transversely during cutting including a laterally extending guiding member rotatable on a pivot disposed above the bottom of said operating member. ,71. In a mining machine, a frame slidzible on its bottom on a mine bottom, cuttingr mechanism thereon includin a rigidly connected longitudinally extending cutter bar, and feeding mechanism thereon for feeding said `frame 4bodily laterally including n flexible feedin member, a. feed operating member exten ing laterally from one side of Said frame, and guiding means for said Llexible feeding member adjacent said feed operating member and also at the opposite ends of said frame.

72. The combination with a mining machine, of feeding mechanism therefor including ,a continuous llexible feeding member cooperating therewith and having single strands extending from the opposite sides of said machine, feed operating means operative to draw in ei-thcr strand at a rutting speed, and adjustable means on said imuhinc for limiting or interrupting the paying ont v,0f one of said strands while |.ierniitting drawing in of the other.

Til. 1n a mining machine, :t frame slidablc on :rmine bottom, cut-ting mechanism thereon including a rigidly connected longitudinally extending cutter bar, and feeding mechanism thereon including a flexible feeding member extending laterally in op ite directions from the opposite ends o said frame, a feed operating member extendin laterally' from one side of said frame, anily guiding means for said flexible member djslmsed'ad'aoent said operating member and also at t e opposite ends of the same side of said frame.

74. In a mining machine, a frame, cutting mechanism thereon, feeding mechanism thereon including flexible feeding means and :i laterally disposed feed operating member,

'cooperating guiding means for said flexible lln l feeding means disposed upon a plvot aboveV the bottom of said feed operatingmember,

flexible feeding n'ieansl displci'se 'at the' opposite'end's of onelside of said frame."

75.V In a mining machine, a franie, cutting mechanism thereon, feeding mechanism thereon 4including flexible feeding Vmeans and a laterallyA disposed feed operating member, cooperatingguiding .fueans for said' flexible feeding means rotata'ile upon .an axis disposed below the axis Lf said feed operating-fmember, and cooperatmg guiding means 'for said flexible feeding means dis posed at the opposite ends of one side of said frame.

T6. Ina mining mncliine, :i frame, cutting mechanism thereon, feeding mechanism thereon'incliiding a single flexible feeding member and a rotatable laterally extending feed'Y operating member, and guiding means for 'said flexible feedingA member including guidinir members disposed at opposite ends of said. fravme'and a laterally extending guiding member rotatable upon an axis disposed above the bottom of said feed operat4 ing member.

77. In mining machine, a frame slidable on the bottom, cutting meclianism thereon, feeding mechanism thereon including, a single flexible feeding member and a rotatrd ,able laterally extending feed operating member, and guiding means for said Hexible feeding member including guiding members disposed at opposite ends of said frame and a laterally extending'guiding member rotatable upon 4an axis disposed below the :iris of-said feed operating. member.

78.V In a mining umachine, u frlune having -a forwardly projecting cutter bar und feed;

ing mechanism including a single con:- tiiiuous flexible feedingr ine|nber,-a ritntuble feed opei'ulngiineiuber ndzipteddo cooperate dii'eetlj.v with suid llexilili feeding iiieiliber ul :i point between lhe endsl of the' hitter and rotatable on ii transverse axis at one side of said fi'l'ime` :i i'oiiperiitiug rotatable member rotating on :i twins-verse :ixis at llie. opposite sideI of said l'i'ziuii :ind also cooperating ferenb Asp,

nfrf member f thereon,

imasss at 'et` [loin-tbetyeen tlfe ends of the latter, a

motqr on sal irame,;,meens for. driving sind vtat l"blemember from y sai'd'moter `nl opp si' ectio'nsat dif'- -tablicjnember from said eeds: L

` ln aiA mining ma` its bottom 'on a chine fraiche v. i., mine" bottom;` of a operating member thereon, a continuous flexible feeding. member cooperatingv :with said feed operating member and extending around tlie'sarneon one-side of said frame and in opposite. directions from the opposite ends of said frame, and a' laterally extending guiding means adjacentsaid feed operating inc niber around which 4the slack side of said flexible feeding member is extended.

80. Thecol'nbination with nA mining machine frame fslidabl'e on its bottom on a mine bottom, of a laterally extending feedoperata continuous flexible feeding membei'eooperating with Said feed operating memberandextending around the same on one iie `of 'said frame and in-opposttev directions' from -tbeI opposite ends of sailtlfframe, a'laterally extending guiding means adjacent said feed. oper-(ting member around which the slack side of said flexible feeding member is entended, and a cooperating lateralljfV extendingguiding member engaging the tight side of said flexible feeding member at a point in front of said feed operating member. Y

8l. In nl min'ing machine,a frame, cutting mechanism thereon, feeding mechanism tliereon'includin a flexible feeding member normally exten' 4ing laterally in opposite directionsfrom opposite ends of said frame nud a laterally extending feed operating member, and guidin means --for said flexible member for directing Said frame transversely during cutting including a lateral!)v Aextending guiding member disposed :id-

FRNK CARILIDGE.

ns. fer dating Said laterally 'eirtendin'g feed l) fi feeding ineens disposed upon n pivot above the helium of Suid feed operating member, and ruopernting guiding menne for Said lle xiile feedingy nimm dispesad :it the opH punite ends nl une Side ui' snid` l'raune.

T5. 1n n minime innehine. n t'rnnie` cutting mechanism llierenn. feeding' ineehnnisni thereon inelnding llexihle eeding menne und n laterally dizlinsed feed operating` lnendaer. weIpemliinev guiding 'nenne for Snid llexihle feeding menne retutn'ile upon an :wie disposed helen' the axis il said feed operating meniher. :1nd eooperntnig guidingr nieuw for enid lexildileveling menne disposed :it the imgmsile endn` el ene Side el' said fiume.

Tl. ln n 1ninin4 ninehine` :i freinej ruling;r mechnnism lherenn. feeding meehnniznn herenn inelndinel n ingle l'lexihle feeding ineinlier und n rnlutnlile l-,dernlly extending feed niiernting lueniher, and guiding menim 'lmsnid lexihle feeding' member inelnding guiding nielnhere disiweed :it opposite ends el Suid freine und n laterally extending guiding' member retidnile upon un axis disposed nhove the lmlimn if mid Jfeed operating member.

T. In n miningl innehine. n freine slidnble on the hottinn, vullingl meehnniem thereon, feeding nierhnnifni therenn including n lingle ilexihle feeding inenlher :1nd n rotai- :die lnternlly extending feed Operating nwinlier, :ind guiding menne` l'er .Caid ilexilile feeding nielnher ixulnding guiding inen'diers disposed nt opponiie ende4 et lSuid l'rnine und n laterallyv extending' guiding ineulher l'etninhle upon un axis disposed lielen'ithe :wie oli'snid leed operating member.

ln n miningr nun-nine` n i'rznne having :1 l'mnnrdly prejeelineentier hun) und 'leedmeehnnisui ini-hiding; :1 Single eeninsulina` llexililw leediuf;A nii-inher. n l'nlnlzdlhleed nliernlinif.1|n'1i|lnl' :idnldrd il: Kumpel-nie dil'ei'tlji' .i'illl nid liexiille feeding' nnulliel' :il :i point llelwrl-n llnend nl ilie lutter und ronnhle on :i linnwelsi- :wie4 nt une i-ide nl' iid Tranne, 1 reopening riitntnhle ineniher lending* on n lrnum'eriee :mis nt the oppesile nidi nl' will lunne und :den enopernting direetly lwith said Hexible feeding nienilier at n point between the endel of the lutter. n nniter on said freine`y means for drring;` Suid iirst inentinned rotatable member l'rnni Said meter in oppesite direetiens :d dil"- 'erent Speeds, und means for driving; seid lest mentioned rontnhle. member rnm smid motor :Lt different Speeds,

TU. The combination with e. mining nm` whine freine slidnhle en its hellem nn n mine bottoni, et n laterally exieinling.; tend npernting member therenn, n eei'itinnmxh` liexihle feeding member eneiienting with mid leed opernting member :ind extending; nrnnud the vinnie en one side el' Suid i'rnnie und in opposite direelionn l'rinn the opposite ends nl sind frznne, and n intl-rally eidrndiin;A guiding ineens adjacent said feed nier-innig member around whir'h the Shu-iii' eide nlV mid llexihle feeding nnnnlwr is extended.

SU. ll`he combination with n miningA mie ehine freine slidable on ite hettmn en :i mine bottom, of u laterally extending feed filmini inf; member thereon, n continuons iexihle feedingr member cooperating with said i'eed operating member and mienilinig around thr- .sinne on one eide of Suid tranne nud in npposite directions from the oppnsire endg, di; seid traine, n later-lillyY extending-i' guiding menne. adjacent. seid feed operating menden around which the sleek side et eind ilexihle feeding member is extended` und n, mengen-:ii ina;r laterally extending gnidiin:` menden' en raging the tight side of Huid llexilale ,fwding member nt e. peint in frnnl il .sind leed epernting member.

81V. In n mining mnehine` n freine, euliin; mechanism thereon, feeding meelinninni thereon inelnding n lle'xilile feeding meniher nenn-[illy extending laterally in impoidte direefinne` from oppesile erich4 el' sind freine .1nd n laterally miendiin; leed unending |iiei|il e1',i1inl Aguidingineens lin' Huid ilexililiA niendaer for direeline sind freine tiene rersely during` eniling inwlndingg; :i nieinllxextendingl guiding ineinher denim-d :nlinwnl Suid nperniiinf; inf-miler.

Certificate of Correction.

1t is hereby certified that in Letters Patent No. 1,538,685, granted May 19 upon the application of Frank (,artlidge,

in l Mining Machines, errors appear in tion ns follows: Page 7, line 129, claim word exis rend ewes; page 11, line rend below the amis; and that of Cincinnati, Ohio, for en improvement the printed specification requiring correcstrike out the word each and for the 88, claim 70, for the werds the seid yLetters Patent should be above the bottom read with these e012 rections therein that the same may conform to the record of the ease in the Peten? (mice.

Signed and sealed this 13th day uf October, A. D. 1925,

` KARL FENN G, Acting Commissomr of ;P'fi'e-1it.ff.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,538,685, granted May 19, 1925, upon the application of Frank Cartlidge, of Cincinnati, Ohio, for an improvement in Mining Machines, errors appear in the printed specification requiring correction ns follows: Page 7, line 129, claim 32, strike out the word each and for the word exis read axes; page '11, line 88, claim 70, for the words above the bottom read below the amis; and thatA the Said Letters Patent should be read with these corrections therein that; the same mayl conform to the record of the ease in the Ptent Olice.

Signed and sealed fhis 13th day of October, A, D. 1925.

[SEAL] KARL FENNING,

Acting Commissioner OfPQents.

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