US1626132A - Assichsfob to goodman manufactur - Google Patents

Description

1,62 ,l 2 Aprll 26, 1927. C. E. DAVIS l 6 3 MINING MACHINE Filed April 22. 1920 5 Sheets-Shut 1 Illmummnm IllllllluluuiimtuuuIlllllim c. E. DAvls IINING MACHINE Filed April 22.- 1920 5 sheets-snm 2 @www C. E. DAVIS MINING MACHINE Filed April 22. 1920 5 Shoots-Sheet 3 Uwe Apr'il' 26,1927.

Apta 26,1927. c. E' DAVIS 1,626,132

MINING MACHINE Filed Avril 22. 1920 5 shuts-sheet 4 25a/@mr Car/es Il D09 5 Wawy April 26 1927. l 626,132

c. E. DAv|s MINING IACHINE Filed Anim 22. 192C s sheets-sheet 5 Inventor G/mr/es QE'. Daw 5 UNITED STATES PATENT EEFQE.

CHARLES E. DAVIS. OF CHXCAGO, XLLINOIS, ASSIGNOR T GOGDVIAN MANUFACTUR- ING COMPANY,

0F CHCAGO, ILLNOS. A CORPORATION 0F ILLINOIS.

MNING MACHINE.

Application filed April 22, 1920.

This invention relates to coal mining machines, and more particularly to mining machines ot the type oomn'ionlv knoivn as the coiitinuous cutter coal mining` machine.

which are moved laterally aloneY the wall ol the mine to cut a horizontal hert thereunder. and are particularly adapted tor use in the room and pillar system ot mining.

The principal object ot this invention is '10 to provide a nen" and improved machine of the above description which capable of use in narrow or thin veins ot' coal. Further objects will hereinafter appear in the description of the construction and operation of the machine embodying my invention.

As heretofore constructed. coal mining machines ot the class described. have been provided with a horizontally disposed cutter bar. having' a cutter chain mounted thereon. and a vertically disposed driving' sprocket for said cutter chain. driven by a source of power. usually an electric motor.

The motor and driving' mechanisni have, been mounted in a plane above the cutter chain and driving sprocket, and a passageway has been provided under the motor to permit the cuttings. or sla-ek. brought rearwardly from the korf. by the cutting chain. to be discharged from the. rear ol" the machine. The slack 'from the average cut accumulates very rapidly. and unless provided with sui- (icient space to be properly discharged. is liable to interfere in severa-l Ways with the operation of the machine. as 'tor instance, bv accuinulating` in the rilischargre passage so as to clog' or choke the same. or by accinuulatine in the path oi. movement ot the machine. or by beine' carried back into the U hert. or cut. lFurthermoiie. it usually necessary for an operators helper to shovel away the cuttings as tast as they are ejected 'from the machine in order to avoid excessive accumulations ot slack adjacent the discharge passage. It has been shoivn. boivever. that a machine having' a motor and iaissaigeivay arranged as above described, is notfadaptable for use in very nari-ovv or thir veins. due to the Vtact that the overall height ot the machine. which is controlled bf.' lthe total height. ot vthe passage 'n.y. and the motor mounted therealmve. is too ereat to be used under such conditions. From a practical standpoint also, it is very diffi- Serial Ne. 375,703.

cultI to .manually shovel the cuttings While (mere-tine in cramped posit-ion under a low root'. ln the present invention, l provide au improved and novel construction whereby the nuixinuuu head-space or clearance of the entire machine is that required by the motor alone. To this end. l place the cutter bar. sprocket and driving' inecl'ianism, in iront of the motor. and provide a novel means ot discharging; the cuttings from one side ot the machine in such a manner as to minimize :uaumulations ot cuttings in and near the machine. and to reduce the amount oil manual labor necessary to keep the discharge passage clear.

Theinvention consists in the combination, construction. and arrangement of parts as Will hereinafter be described in connection with the, accompanvingr drawings. and more particularly defined in the appended claims.

Referring' noiv to the drawings.

Figure l is a plan View of the machine in cutting' position alone' the wall of the mine.

Fig-ure 2 is a view in elevation of the open side ot the machine.. that is to say, the side from which the cuttings. or slack, are ejected.

Figure 3 is an enlarged detail plan view oi the driving' mechanism ot' the machine.

Figure 4L is an enlarged cross-section of the driving mechanism taken on line 41-4 oiI Figure 3. i

Fig-ure is a transverse, cross-section of the machine taken on line w ot Figure 3.

Fic-ure G is another transverse cross-section ot| the machine taken on vline (i-G Oli Fisrure 3. A

ln the drawings. which illustrate one torni in which my invention may be embodied, the mining machine con'iprises a main trame and a cutter bar l of any approved construction; Whicb is provided with a movable cutter chain 2 inde up of suitable chain blocks 3. provided with projecting cutter bits 4. 4. as shown. The main frame 5 ot the machine comprises a motor 8. mourted in a casino' t3. preferably located at the rear end of the machine. and a housine1 7. at the iront end oi the machine. The motor casing ti and housing 7 torm the hase plate upon which the n'iachine rests on the mine floor. ln order to reduce the overall height of the machine t0 a minimum7 I construct the motor casing 5 so as to require a minimum overall height commensurate with the size ot a motor having;- sutticient power for operating` the machine. The armati'ire oir the motor is preferablyv arranged longitudinally ot the machine, as shown by dotted lines in Figure 1. lt will he seen that the height ot the housing;` 7 which contains the driving' mechanism, is controlled b v the height oi the motor casing 6. its will hereinatter appear. means are provided 'tor detachabhT connecting the motor casino` 6 to i'notor casing T by means oit suitable bolts 9, 9.

lllininir machines ot the class described. are fed to the work by means ot a flexible draft device, such as a. cable. chain, or the like. ln the machine illustrated herewith.l I have shown a flexible cable 10. which is led around the sheave 11 at, the iti-ont end ot the housingl 7, and is anchored at a, distance from the machine and near the 'tace ot the mine. rlhe cable 10 is Wound on a motordriven drinn 12 mounted on the side ot the machine. The drivingI n'ieclninisui tor said drum will he hereinafter described. llv means et the flexible dratt `gear. arranged as shown, the entire machine is dragged bodily along the tace, or wall. oit the mine so to perform the cutting; operation in the usual manner. A retardng device also provided to .maintain the machine in its proper cutting relation to the wall. For this purpose, l hare shown a 'friction coutrolled drum i3 at the rear end ot the motor casing; carryingl ay llexible cable 14. which is adapted to be anchored in the direction opposite to that of the feed rope 10, and to be univound 'from said drum against lriction as the machine advanc s. lt will he understood, however, that` an v other suitable dra'tt device or infopelling` i'nechanisni may be used 'for the purpose oit moving; and controlling the machine duringr the cutting;- operation.

Referring now more particularl)Y to the novel features of the invention. it will he seen that in Figure 1 the cutter bar 1 is attached to a lue' 15 mounte/l eccentrically oi" the 'trout end oll the machine trame that is to say. to the right ot the approximate longitudinal artis ot the machine. rllhe cutter chain 2 .mounted on said cutter bar. passes rearivardlyv around the sprocket lo. located in a recess 17. which torn'ied un derneath the housing 7, and opening to one side ol said housing, as shown. rilhe heal ings and dri 'ing mechanism tor said sprocket will be hereinafter described. The

recess 17 is provided with a lower wall E20, which wall is a continuation ot the base plate or tace upon which the entire machine rests. and extends lateralljiY under the rear end of the cutter bar, thereby preventing` the cuttings or slack from lodgingv under the iyeaeaaa base plate oli the machine as it is moved along; the mine ldoor. .li vertical web lo connects the `l'or ard edge ot wall Q() with the housinu' Y, and prov'des a support against which the rear end ot said cutter bar abats. As the machine proceeds to the lett alonz,T the mine all, the cutter bits i. lnieve in the direction indicated by the arrow around the cutter bar 1, and sprocket 16. so as to drag the cuttings out ot the keri' into the recess V17. lt will be noted that said recess is oiiucncd to the tollowiniij side. that is to say7 the slide awa); iti-oni which the machine is adapted to move. The cutter bar 1 and cutterV chain Q mounted thereon are arranged so that the torvvardliY movingr section of the latter on the following or right` hand le ot the cutter har is adjacent to, and substantially in longitudinal alignment with the lolf lowing' side ot the heus 7. This arrangement is clearlyv shown in Fig. 1. By reason ol? this construction, the niininii` machine may he moved into close priimit/ iv to the right hand rib or wall. and sul'istaiitiully parallel therewith. when making the initial or snlnpingr cut into the v-:orlring` 'taco Furthermorev` the side margin ot' the lower wall Q0 is arranged so as to approximateliv coincide with but not extend beyond the cut.- tcr chain on the tolloivinfr side ot the cui ter bar. (See lilia'urc llhe arrangen'icnt just described, is provided because` sonic ot the cuttings are olen carried around the sprocket h v the chain. without being.;l ejected by the conveyor. and these cuttings 'tall oll" ol the bottoni wall 2i and clear ot the machine, instead ot a@cumulat-A i in; thereon` ln order to positivelyY eject a. large pio portion ot the cut or slack. which is carried into the recess li" by thc cutter chain 2. l provide a conveyor 2i. jne'teralilv lo cated transrei-sel)v ot the machine and adapted to more alone' the inner. or rear end ot the recess l?. Details ot this convevor ai snown in Figure (l, where it. will he seen that it comprises au endless chain. which may be made in infsuitable manner. such as comprising' links 2Q. and buckets or paddles 215. 23 intermediate said linlis. Said conveyor is mou. ted on. and carried lijf, a pair oli idler s )roel-tet.' l. 24e on the lett hand side ol the machine. and a driving; sprocket The driving' mechanism ot said conveyor connected to the sproclel and will be described hereinafter in connection. with the operation ot the other drivinginechanisni with which it associated. Bearing; plates 2Q. 22' attached to the housing in any Suitable manner. are preferably provided 'for contact with the moving con veyor l also provide means tor tipghtcnine' said conveyor which comprises a niorablc member QS), which carries the sprockct:-- El. 2l. and is adjustable Vin a lateral di loo ieetion by means of the set screw and the adjustable mit 3l, on the lett hand side o t the machine.

An opening QG, from which the cuttings are ejected by the conveyor Qi. is provided on the rightr Side ot' the machine. This opeir ing is a continuation o't the recess iii? l, is preferably arranged somewhat above lower wall 2O ot said recess. as shown. construction allows the conveyor l the cuttings upwardly along' the ini'l Surface 2T toward the edge QS o'f the one ii1Y Q6 so as to eject the cuttings at :i point above the mine lloor and at a distance troni the machine .so as not to interfere with the continuous ope 'ation ol the conveyor as the cuttings aeciiinulatc. An outwari'll \Y extending lip 28 is provided at the upper ed'y ot' the opening' QG. in order to deflect the cuttings di'nvnwardl)v as theyY are tin-own trom the machine.

Referring' now to the drivingY mechanism -toi' operating the machine. it wid that the motor liaS operative connection with three driving` elements. nainelv. thc t'eed rope la :seen

drinn l2, the cutter chain spi'orlret it. a... l the conveyor chain sprocket, 27%. Details o t the driving nieclianieiu are shown in ille'- ures 3, il and 5.

The motor 8 is provid d with driving' shaft extending' thru the wall 35i ot the motor 'asino' 6, aS shown in Figure l. and

having an annular herring miinheL j mounted in a Suitable aperture Tl in the housing 'i'. bevel gear 33 is mounted on the end of said shaft. Ar ring 233 is seated in an annular recess Sie" YFormed in the rasing' wall 34, said ring being' also adaptei'l to tit the aperture in which the bearine;

5)..4 32 is iarried, so a5 to maintain the shall',

32 in proper alignment with its: bearing; in the motor casing'. and also with its driving e lower llfflll': plates 39, Pif). are provided tor the bevel ricer 8G. V.\ Second bearing` pin f1.0 is

adjacent said tirst mentioned pin 3'. par: llel therewith.

Said pin lo in at the upper end in the carer plate the housing' and extends dinvnwardlv thrri the lower wall ot the houeingf 7. and mounted at ita lower end in the hoes integral with the lower wall :'20 ot' the niachine. gaid bearing pin l0 carries a hub member t3 which extends downwardlj.' and is connected with the cutter chain sprocket ttl. Suitable bearine' sleeves eli and l5 ai'e provided l'or said hub member and Sprocket. Ain annular gear member 1-l loosely mounted on the upper end ot' said hub. and is driven liv the pinion alf. olI the bevel gear Btl, betino mentioned. clutch .lt is interposed between the `rear member ll and the hub. which rlutch roinpi'ises suitable recesses on said gear member. which ar. adapted to be engined h r radially extending' lugrs iT, li, carried bj' a vertically inovahli` sleeve lll. V'ei'.thei'ed to said hiili member lil. The sleeve Vt-tl is' adapted to be sliil'ted bv anjY suitable niecl anism, such as a votre i-ft2 a 'hitter arm lik (see Figure i) carried by transverse roi-hina` arm 5t). and a control vcr 5l on the outside ol housing; T.

'llie near member ll is also provided with a downwardli.' extending hub portion 52, carrvinfg' a worin `:rear tiered thereto b'v -ins el a luv nl. llcariircY sleeves and provided at the upper and lower ends i d rear lnali 'LL :is shown. thrust licarinr' rire' 5T is mounted on an annular siippor niei'iihei' 5S. provided vrith an a rifinite soclieted lare adapted to tit in :i-

n't). seated in the bottom (I i. as' shown. lhe coni linst described. provides a sellcen eat Al'oi' the thrust bearing: 5T. which wat? ol' structiteri ne' autiiniatii'allv adjusts itselt' to wear on the man bearings l and 45.

The inei'lianisin ioi' driving? the l'ecd di'iiiii the worin gear o?) before nienn drives the worin wheel (ith and xtendino' thru the side wall ot T. pinion (S2 is mounted on :'.ees a aQ'eai' G23 as rociatieiil I'hanfre-,-.need mechanism (il. The fed mechanism inajv he ot anv condesired lziit prefer to utilize a ion-renamed planetaryv gear mechanism oi a well-known type. as it lends itsel't remlilj7 to the purpose and uses ol? the niachine. Details ot this planetar)Y gear need not be explained. excepting' to call attention to clutch jaws (l5 and (iti which provide a hugh-speed and a low-speed connection, re-

iectivelv. thi'ii the planetariY gearing in the nso; These jaws are adanted to he eno'an'ed and diseniaejef'l b v a clutch lmeinber GT. carried b v endwise movable shitter rod GT. tion shown. the shifter rod (37" is keyed to the pinion (lll and rotates therewith. )i 4volte t cai'i'iei'l liv a reeinrocatinel ai'ni (STC in'nviiled lo more said rod into its various imsitioni, The inzweinent ot the arm (l'i-c is prelei'ahlff controlled 'troni the, rear of the machine. lr" ireans ot the hellvcranhY (lid. control rod ti?" and operating' lever (lif. .inv suitable driving' connection may be ina/le hetween the nini-on (SB and the feed drum l2, as l'or instanc by means of gears til l'n the pretei'red constriic-v G9 and 70. The friction hand Gl ol the planetary gear7 magy7 also he controlled. trom the rear oli the machine lrv means el control coni'iections 64d) and (5497 as shown in Figure 1.

The driving mechanism jl'or operating.,Y the conveyor 2l. comprises a 'vertically disposed shaft 7l, located in the housing 7. Said shaft carries a gear TQ. which meahes withT and is driven from, the rear inemlier ll lief :fore described. il, mitre gear 73 moves with said gear 'lib and has a driving Connection with a second mitre gear Tel. carried by 'the Conveyor driving; shaft 7G, which extends thru a partition T7 ot the housing and earries thereon the conveyor sprocket Vlfhe nee and operation oit my invention. as 'lollon's;

The machine moved laterallj.' along 'the ilace of the mine h v means ot the 'Flexible cable l() 'which is Wound on the toed drum l2. in the usual manner alreadyr deserilied. The cuttings are lirona'ht out el? the leril hy the Cutter chain 2. and a re Carried in'lo the recess 17. Triest ot the cuttings are dislodged as the chain evfeeps around the si'iroeliet and are deposited in lrhe recess. As the cuttiiigigs accumulate. the)T are sweptrearwardl5r into the Conveyor 2L and are carried thereli'v upwardlyv and out olf the discharge passage 26. The conveyor nia)v he moved at any speed desired, hut l find that liest results are obtained h v operating the conveyor at sn'llieient speed to discharge the cuttings at a Considerable distance from the machine. pile ot cuttings will tliereiiore he termed in a line with the discharge passagre, hut as the 1n achine is eont-inuallv moved laterally avra); from the pile7 the cuttings cam'lot accumulate in sullieient amount to clog the disrharire passage.

lt neeessarjv lo avoid an excessive ac.- ruululation ot cuttings along; 'the rin'ht hand Side olf the chain. so that the7 will not he carried haelt into the kerl. is has heen before pointed out. the liottoni n'all 20 ot the recess.' l?, does not extend beyond the line of movement ot the cutter chain. so that the cuttings cannot aeeunnilate on the marcjiii oli this n'all. lint 'tall an'aflv and elear of the chain as the machine is niioved laterally.

Another feature oi' my invention the arramgjenrent in which the rntter har entends eccentrieally 'l'rom the liront end of the trame. i. e.` at one side ot the approximate longitudinal center line thereof. This conslrurtion is provided no 'to estahliso the approximate center of gravit); ot the inachine in advance or' the Cotter har. whereby the machine tends to maintain cutting position adjacent the floor ot the mine, partieularly when advaiieino'A a lrer't over af' Slightly rolling; or uneven niine liner. ln the present construction, this object is attained by providing the longitudinal axis,

Mandria or center line ll-B of the electric motor in nalrance o? the longitudinal axis of center ine .il-A of the cutter har as shovvn in li itgnre l.

lllhile l have shown andv described herein a specified eonstrruxtion an embodiment of my invention. it will he understood that man): variations in construction will readily suggest themselves to those Skilled in the art. Without departing' 'from the spirit and .seope ot nrv invention.

llavine; descriljied nrv invention. What I claim as nevi.' and deeire 'to cover ln' Letters llatent, is:

l. ln a room and pillar mining machine the eomhination ot an elongated iframe, a cutting element extending eceentrieally 'troni one end olf said 'traine with one side hereof in substantially longitudinal alignment with and. opened to the adjacent side of the inachine frame, and means for moving` said machine in a general, longitudinal direction linto the n'iine Ylace and thereafter advancingl sai d n'iaeliine laterally along said ,tace with Said cutting element at the 'following side ot said machine.

Q. In a mining` machine adapted to he moved laterally along' the .tane of a mine vfall. the combination of' an elongated trame, a, cutting' element extending eecentriealb7 troni one end ot Said frame adjacent the tolmving side thereof and means `for discharla'inal the rnttings from said. following ide et the machine.

3. ln a mining; machine adapted to he moved laterallyv along' the lace of a mine n'all. the combination of a traine, having a recess in the forward portion thereof, closed to the advance side olz said machine, a rotting element :n'lapted to move the cuttings into the Front end oi said reeiss, and means independent of said eut element for discharging the cuttings 'from the 'following side egt the machine.

4.-. ln a miningv machine adapted to he moved laterally along' the tace of the mine Wall the combination of a. frame having; a recess on the front portion thereof closed 'to the advance side ol2 said iframe, a cutting element adapted to move cuttings into said recess, means independent of said cutting element for discharging' the cuttings from the tolloningv side ot the machine.y and a motor located rearwardly oi said recess having' operative connection with said eutting; element and said discharging means.

ln a mining;` machine adapted to be moved laterallv along4 the :tace of the mine wall, the combination of a frame having; a recess; in the iront portion1 provided with a. discharge passage opening to the side of the inaeliine opposite to the direction in which the machine is adapted to move, a cutting' element adapted to movethe erittings into said recess, means independent of said cutting element for ejecting the euttings from said discharge passage, and a motor located rearwardly of said recess, having operative connection with lsaid cutting elementand said lcting means.

6. ln a mining machine adapted to bc moved laterally along the face of the mine wall, the combination of an elongated frame having a recess therein, a cutting element extending longitudinally from a point near the base of said framev`v and adapted to move cuttings into said recess, and means in said recess for discharging said cuttings from one side of the frame at a point above the plane of said cutting element.

7. In a mining machine adapted to be moved laterally along the face of the mine wall7 the combination of a fran'ie, a cuttingelement extending horizontally from said frame near the base thereof, and adapted to move the cuttings into a recess in said frame, means in said recess for dischaagingthe cuttings at a point above the plane of said cutting element, and a motor located rearwardly of said recess and said cut-ting element, having operative connection with said cutting element and said discharging means.

S. in a mining machine adapted to be moved laterally along the face of a mine wall: in combination, a motor, a casing for said motor, a housing dctachablf,r connected to said motor casing and forming therewith the bottoni plate upon which the machine is moved on the, mine floor, said housing being provided with a recess having a discharge passage opening to the lfi'illowing side thereof, a cutting element extending forwardly from the end of said housing opposite said motor casing, and in a plane above the lower wall thereof, :zaid cutting element being adapted to move the cuttings into said recess, means in said recess for discharging the cuttings therefrom, and mechanism in said housing having driving connection with said motor, and atfording operative connection with saidl cutting element and said d ischarging means.

9.111 a mining machine adapted to be moved laterally along the mine wall, the combination of an elongated frame having` a recess closed to the advance side and opening` to the front end and to the following side of said machine, a cutter arm extending eceentrically from the front end of said -llame forwardly of said recess` an endless cutter chain mov-ably supported on opposite sides of said arln and movable rearwardly into and forwardly ont of said recess, the ffnwardly moving section of said cutter chain being in substantial longitudinal alignment with the lateral boundary of the machine frame at the following side thereof.

lt). ln a mining machine adapted to be moved laterally along the face of a mine wall, the combination of a frame having a. recess in the front portion thereof provided with a horizontally disposed lower wall, said recess opening to the front end and to the following side of said frame, an endless cutting element supported to move rearwardly into and forwardly out of said recess, said forwardly moving section extending laterally beyond the side margin of said lower wall:

ll. ln a mining machine adapted to be moved laterally along the face of a mine wall` the combination of a frame having a recess in the front portion thereof provided with a horizontally disposed lower wall, said recess opening to the front end and to the following side of said frame7 an endless cutting element supported to move rearwardly into and forwardly out of said retess, said lforwardly moving section extending laterally beyond the side margin of said lower wall, and means in said recess for discharging the cuttings from the following side of the machine.

ln a mining machine adapted to be moved laterally along the face of a mine wall, the combination of a frame having a recess in the front portion provided with a lower wall, said recess opening` to the front md and to the following side of said frame, an endless cutting element supported to move rearwardly into and forwardly out of said recess, said :forwardly moving portion thereof extending laterally beyond the side margin of said lower wall, and a motor located rearwardly of said recess having operative connection with said cutting element.

13. In a mining machine adapted to be moved laterally along the face of a mine wall*` the combination of a frame having a recess in the front portion thereof provided cwith a horizontally disposed lower wall, said recess opening to the front end and to the following side of said frame, an endless cut ting` element supported to move rearwardly into and forwardly out of said recess, the forwardly moving portion thereof extending laterally beyond the side margin of said lower wall7 means in said recess for discharging the cuttings from the following side of the machine7 and a motor located rearwardly of said recess having operative connection with said cutting element and said discharge means.

1l. ln a mining machine adapted to move laterally along the face of a mine wall, the combination of a frame having a recess in the front port-ion provided with a hori- Zontally disposed lower wall, said recess opening into the front end and following side of said frame, a cutter bar extending longitudinally from the forward end of said frame7 a cutter chain supported on said cutter ber ond movable rearwardly along one side thereof into the trent end et seid recess, thence around driving Sprocket in Seid recese ond thence 'forweicdly along the oppoeite eide et' seid critter erm, the forwardly moi'- in@` section oit seid cutter chain extending laterally beyond the n' irgn oi Seid lower Well, a motor having oieretive connection with seid driving Sprocket ont. o coeingl lor said motor mounted retirwerdly ot' eoid treme and forming thereii the bottoni plete upon Wnich the me'cninc if; moved on the mine floor.

ln e inii'iingg mechme adopted to be moved laterally the 'lince et e mine WollI1 the combination of n hor ntelly die posed motor, :i casing:l tor seid inotoi'7 e freine mounted torwerdly ot sind casing, and having o recess, opening` to the follo'wing thereof, seid mining end 'treme orming;4 the bottom plete upon Wl ich the machine ie edopted to Slide on the mine door:y e cutter erin lnnendinggy from the :toriiford i ot Seid treme, :i cutter chain cer by d cutter i id chain i l in seid o, windingdrinn heif'in on :une ei:- fling transversely et the machine ond mounted on the advance eide oil :Eni-:l 'iframe Said cutter chain eproc :e1 ond seid Winding drum each boring oijieretive comiection with sfl'id motoi:

lo, ln e mining;y machine? in combini'ation, e bodi.v1 port-ion comprising n :noter casing hoi/i cg e horizontolly diepoeed r vor end o iframe inen'ibcr mounted forwardly oif seid casing. seid casing end 'treme member torni in@` the bone plete upon which the machine is adopted to be moved on the mine bottom, a, cutter arm provided with cutter choin extendingn longitndimilly trom the trontor n ell end of Seid i'i'eme, e d riven Winding` drinn n'iounted on one eide ot seid treme With its` airis extending` ti'iniieieiSeixopt the machineK gearing on Said eine operatively connecting Seid motor with Sei-:l ciittei chain and seid drum? n flexible 'lieeifling elementv associated with Soin drum` n iide tor .Ciiiid feeding element eiljecent front end oi seid 'tronic end flexible reti;

Y i in; ineens; extending' trom the rear of :nii nic-i: inning, ii. ln n mining machine in co nbinecioin e bodj,T portion comprising e moro;-

ne having :i motor? ond o ,treme member meiinrl ed i'orwinfdly ot seid niotoif cosine :ind forming therewith the bottenl ph upon which the machine ie adapted to move on the mine bottom, seid 'treme l Wing o recess in the forward end thereop, cutter erm extending from the forward d oi seid treme and provided with e cutter chron7 zi sprocket Jfor Seid cutter chain mounted in seid reeeeeM a ehott connected with. smid sprocketand extending eboie Seid recefzs e geerinember loosel)7 mounted on seid .eliejlf't` speed reduction gearing interpoeeifl between seid motor and Seid gear member, and clutch m ens ali'ording driving` connection between seid gem? membei1 and said Shaft.

18. ln :i mining machine., in combination` o bodjyY portion comprising :i motor casing having e motor ond e treme men'iber mounted forwardly ot seid motor canin end forni-- ing therewith the bottom plete upon which the machine adopted to move on the mine bottom7 Seid treme having e recess in the forward end thereot', o cutter erm i irom the 'foi-Word end oit :seid ironie ond provided with o cutter chain, :i sprocket tor seid cutter choin mounted in amid receseu e Shaft connected with Seid Sprocket :nid tendingl above seid rece e, I member loosely mounted on seid @hefty Speed rednction gearing interponed between Seid niotoisind seid gear member, clutch ineens eil'ord ing` driving connection between seid geni' member and seid ebelt.5 winding; drum mounted on one eide ol? eid treme ivith ite exis entending` tre werf-ely oi the imirhine epced 'reduction geni-i interposed between eeid gear member :ind mid windi dilin'n and clutch ineens erreociiited Vwi es:

tion at will between seid ser member und Seid Winding; drum.

i9. lin e mining' machine ei'lepliet to be l moved laterally along the 'li-(ice oi? o, mine Welh the combination oi ii 'treme lim/ing o rccese :in the 'forward portion thcreoi cloned to the advance side und op ned to the Yfront end nid following; eide ot mid nini-bine, :i cutter bor extending longitudinally troni the 'forward end of seid recess, :1 driving sprocket in said recess, e cutter chain Supported on Seid cutter ber and engaging said sprocket o motor located reerwordlui' oi seid reiheving operative connection with Seid drii ing` eprocliety end :i casing for u adapted to reet on the mine floor.

20. il mining machine slidzible on :i mine bottom comprising o cutter chain carrying cutter bor extending longitudinell),y thereof during lateral cutting, e motor Who-.se height substantially determines the height of the machine located in rear ot the rear end oi seid chain and operatively connected thereto7 ond means for feeding; seid machine laterally :including feed operating means disposed on o, l'iorizontel exis in trent oit seid motor und operated thcrebiT end itlexible feeding` portions noting on the oppoeite ende ot' the machine iframe.

2l. fir mininO machine slideble on o mine bottom comprisinge cutter chain carrying mitteibe-r erztendinp` longitudinally ther-cot during lateral cutting7 e motor Whose height substantially determinen the height of the machine located in rem' oi? the rear ond ot seid chain :ind operetitel;7 connected thereto, and means ttor feeding; soie mii-chine hiterally includinga feed operating member iid motor operatively connected to said motor and rotatable on an axis disposed horizontally on said machine and on the advancing side thereof in tront of said motor and flexible 'licei-ling' portions acl ing on the opiosite ends ot' the machine trame.

22. )i mining machine slidable on a mine bottom and comprisingl a liront 'trame portion, cutting mechanism including a cutter bar disposed longitudinally oi said portion during lateral cuttingv` lateral Vfeeding mechanism iuchnling a 'tecd operating member carried on the advancing side oit said trame portion on a transverse axis, a plurality ot tlexible feeding portions, and directing means Vfor .said portions including a guide riitatable on a vertical axis iu t'ront ot said member, and a motor connected to said portion and disposed in rear ot said bar and member and connected to said cutting mechanism and feed operating member, said motor and bar being so disposed that the height ot the former substantiall),v deter mines the height of the machine.

23. The combimition with a mining ma Chine slidable on its bottom on a mimI bottoni, ot' cutting .mechanism including a culter carrying bar projecting at one cnil ol' said machine, lateral :feeding mechanism including a itced operating member rotatable on an axis extending transversely ot' thc same end ot the machine and cooperating iexible 'feeding means, and a motor operatively connected to said cutting mechanism and feed operating member` and disposed at the opposite end of said machine.

rlhe combination with a mining nia-- chine slidablc on its bottom on a mine boltom, oi" cutting mechanism including a cuiter carryingl bar projecting at one end ot said machine, lateral Yfeeding mechanism lincluding a 'leed operating member rotatable on an axis extending transversely ol' the Same end o'ii the machine and cooperating vflexible feeding means, and a motor operativelj,i connected to said cutting mechanism and feed operating membr and disposed at the opposite end of said machine. said motor and 'feed operating member being so disposed that the axis ot the latter is below the tcp ot the motor.

25. The combination with a mining machine' shdable on its bottom on a mine bot` operating member is substantially Within the vertical limits ot said motor.

26. The combination with a mining machine slidable on its bottom on a mine bottom, ot' (Hittingl mechanism including a cutter carrying bar projecting at one end olf said machine, lateral feeding mechanism incli'uling a feed operating member rotatable on an axis extending transrmseliY o1" the same end ot the machine. and cooperating flexible leeding means, a motor operatively connected to said cutting` mechanism and tecd operating' member and disposed at the opposite end ot said machine, and cuttings egrees means at the machine end of saidbar.

Q7. A mining machine comprising a- 'feed and cutter 'trame section and a motor-carrying 'trame section located in alinemcnt therewith.. said sect-ions being operatively connected to form a rigid structure. the maximum height oi which is substantiali)v theI height ol said motor trame section. lateral 'feeding mechanism im'luding flexible tecding means and a tced operati member rotatabli` bv said motor on a transverse axis disiiiosed beton' the top ot said second 1nen tioncd section` and cutting mechanism driven hv said motor and disi'fm-:cd at the same end olc the machine as said ilecd operating menu ber inciui'ling a cutter bar disposed in hori- .contal planes inl'er.-'ccting the motor.

Q8. mining machine comprising a iced and cutter iframe section and a molorcar rvini" Vtraine section located in .rcar therco'l"` :said sections being oporativcliY connected to Vl'orm a rigid structure yslidable on itsl bottom on a mine bottom` the maximum height ot which is substantially the height of lsaid molor Vtrame section, lateral feeding .mechan nism including liexible 'feeding means and a 'toed operating member rotatable by said motor on a transverse axis and disposed beH low the top ot said second mentioned scction. and cutting' mechanism driven by said motor including a cutter bar disposed during lateral cutting liing-itudinallvv ol said sections in a horizontal plane above the machine bottom and rigidi)Y connected between said lirst mentioned section and the. machine bottom.

29. The combination in a mining machine slidable on its bottom on a mine bottom, ot cutting mechanism inchuling a cutter carrying bar projecting at one end ot said machine. ot lateral 'feeding and guidingl mechanism operating to iced said bar trans'- Versely, said mechanism incaiding a 'tecd operating member rotatable on an axis extemling transversely ol.5 the machine, a cooperating guiding' menber disposed closel)Y adjacent the iront end oi the machine and to the tace being cut. and cooperating` tlexible 'i'eeding means acting on the opposite ends ot the machine inclmling a llexible feeding portion extending l'rom said Iced lou operating niernber around seid guiding ineinber and laterally tbereti'oni, and oit a niotor operativeljT connected to Said cutting' niechaniein and 'leed operating; nieniber and disposed between both said ci ting iii-echanisin and seid 'leed operating nien'iber and the opjiiofiite end ot the ina/chine,

30. The ci'linbination in a mining; inachine elidable on its bottom on :i inine bottoni, o? cutting nieclianien'i inclrdii'ig` n cutter chain carryingl cuttifr bar project. it; at one o't' Said nnichine and :i cutter chain at the inner end ol" seid bei', ol let ing and guiding' meelianiein operative to eaid" bei' along' a iiicc, mid mechanism cludingg a 'teod operating; member roter on an axle ,fsubsitentiallj' lyingi' in a 'piane parallel with the 'tace :ind not nearer the '.lace than the sprocket :mire 1'; cooperating guiding inei'nber diepoeed closely adjacent the front end ot the niachine die l'ncc being' cutn :and cooperaiii ineens :ictinji' on the op machine including n dei; extending troni isaid teed oper:

around aid guiding incniber :ind latere theretroln, und of a motor opere ely c nected to eaid sprocket and 'leed operating; inelnlier and diepoeed between both -eiil :'i'procliet and wid 'leed operan and the oj'ipoeile end o the nmcnine.

llA '.lhe combination in a ininine' nnicliine iilidiible on its bottoni on a niinc bottoni, oi" cnt-ting nieclianieni inchidi :fi ciztter chain carifyingi` cutter bar projecting; at one Aend ot #nid i'iiaehine :ind :i cutter chain sprof the inner end olf enid bait. ot la ing; and guiding` inechanieni operiL leaid bnr along :i tacej Seid inechzn chidingf; n feed operating ineinbei' rotatable on an afiifi extending; jimrzillel with the faire :ind tl'zinercrecly o'f the machine :ind di posed on the advance eide ot the nnichine and on the neme eide oit the axis; o Seid Sproiiflet, ai cooperating' 4euitling nienibcr die-- pofied closely adjacent the front ot the nin chine on the adif'ancc Sido thereoif, flexible feeling' nieans acting on the opposite ends oli-the machine including' e tieiible 'teeil portion extending troni said feed operai j nicn'ibcr eronnd I@aid guiding' incniber ein cluding a leedopcrating member on the adneedless ot l portion ef-:tenlinn' 'troni ,fiziid 'Feed operating' member :mound .eind guiding nieinber and latere. theroironn und of a inotor operatively connected to Said spri'icliet and feed operating incinber and diepoeeigl between said :iproclfeiI and Seid leed operating' nieniber :ind the opposite end ol the machine.

iw 'lhe eoinbiniition in e n'iinintg` niiachine lr). eiidable on its bottoni on a mine bottom7 t cutting mechanism including' a cutter chain carrying cutter bar projecting at one end olf the machine and a cooperating cut- 'ter chain driving' sprocket, ot 'feeding and nivel einem operative to ieed said along' a tace when said bar projects said mechanism including a 'ifeed operating n'ieinber rotatable during cutalong,` the 'fece on an axis not nearer e 'trice than the axis ot said sprocket, a V'sexible feeding' nieinber cooperating;r with said i'eed operating member and dispoeable in :i Single strand connection to a fixed point in juxtaposition to the face `and in advance oi the machine7 and a guiding ineincr ior said 'flexible feeding' member so iepoeed adjacent `the point Where the bar projects lroin the machine and so cooperating with sind flexible ineinber between the frein which the ber projects 'from the machine and to said point ol fixation 1n a mth extending' substantially parallel to und closely adjzicent to the face, und of a motor ojiieri'itivelji connected to said Sprocket and 'feed operating;` member and disposed'between the oj'iposite end ot the machine and the portion thereof carrying saidv sprocket and 'feed operating` member.

34;. The combination in a mining machine elidable on its bottoni on a niine bottom, olf cutting mechanism including a cutter chain carrying cutter ber projecting` et one end ot 'the machine and a cooperating cutter chain driving Sprocket, oi' feeding and guiding' ineclianieni operative to feed said machine along' a fece -when said bar projects into 'the liice, said mechanism including' a toed oj'ieratingr inen'il'ier rotatable during cnte; alongl the 'tace on an exis disposed in rear et e plane parallel to the face and including` the sprocket axis, a flexible feeding nicinber cooperating with said feed Cil operating' member and disposable in a single strand connection to a fixed point in jnxtaposition to the face and in advance ot the machine, and a `guiding' member Vtor said tlexible teedinc; member' so disposed between the feed operating; member and the point where the bar projects trom the machine and so cooperating' with said flexible meni- -ber between the teed operatingmember and said point ot' fixation as to direct said flexible member alone; the 'tace 'trom the point from which the bar projects trom the machine and to said point ot xation in a path extending substantially parallel to and closely adjacent to a face. and of a motor operatively connected to said sprocket and feed operating member and disposed be tween the opposite end ot the machine and the portion thereof carrying: said sprocket and feed operating' member.

35. The combination in a mining' machine slidable on its bottom on a mine bottom of cuttingf mechanism including' a cutter chain carrying cutter bar proiectinc` at one end of the machine and a cooperating' cutter chain driyinc' sprocket. ot tendiner and `guidingr mechanism operative to 'toed said machine alone a face when said bar nroiectq into the face. said mechanism includinff` a feed operating member rotatable durin o: cut tine' along' the face on an axis disposed naralle] to the nlane of the bar and in a plane parallel to the face and located on said axis on the advancing side ot the sprocket axis. a 'Hexible feedinn' member cooperatine with said feed operatino' member and disposable in a single strand connection to av fixed point in iuxtaposition to the tar-n and in advance oi the machine. and a miidinxr member for said flexible teedino' member so disposed between the feed operatinfr member and the point where the bar nroiects trom the machine and so cooneratino with said Hexible member between the 'Feed operatino member and said point oi iixation as to direct said Hexible member alonfr the tace from the point from which the bar proiects from the machine and to said point ot fixation in a path extendine' substantially narallel to and closely adiacent to the iieee. and of a motor operatively connected to said sprocket and feed operating member and disposed between the onnosite end o'F the mtu chine and the portion thereot carryincc said sprocketand feed oneratino member.

36. The combination in a minine' machine slidable on its bottom on a mine bottom` of cutting mechanism including' a cutter chain carrying' cutter bar jn'ojectiner at one end of said machine and a cooperating cuttei` chain driving sprocket. ot teedinfr and guiding mechanism operative to feed said machine alonfr a tace when said bar projects into the tace. said mechanism includiner a feed operating member rotatable during cutting along the face on an axis parallel to the vtace and the plane ot saidibar, a flexible feeding' member cooperating with said 'feed operating' member and disposable in a single strand connection to al fixed point in juxtaposition to the tace and in adif'ance of the machine, and guiding means '.for said tlexible member includingv a guid ing member so disposed relative to said toed operating; member and so cooperating with said .Flexible member between the feed operating member and said point ot fixation as to direct said ,flexible iteedingr member along' the 'tace to said point ot fixation substantially in a plane parallel to and adjacent the face and including the point troni which thc bar projects, and ol a motor operatively connected to said sprocket and teed operatimr membern said motor and all ot' said previouslj7 mentioned elements being so disposed that the height ot the machine is substantially the heicjht of said motor.

337. The combination in a mining' machine slidable on its bottom ou a mine bottom; o'l" cutting mechanism including? a cutter chain carrying cutter bar projecting;l at, one end ot the machine and a cooperating cutter chain drivingl sprocket. ot -teediinr and guidinc; mechanism operative to iteed said machine along a 'tace when said bar projects into the tace. said mechanism includingi; a winding member. a tlexiblc 'feeding member cooperating; with said winding' member and disposable in a. sina'le strand connection to al fixed point in juxtaposition to the tace and in advance ot the machine. and a gnidingr member 'tor said iiexible member disposed adjacent said winding member and the point where the bar projects trom the machine. said winding' member and said cutter chain driyinfr si'n'oclret rotating on axes lying; substantially within a plane dis posed parallel to the 'face dui-infr cutting: along' the latter and said ,duiding member beine; disposed between said plane and the face. and a motor operatiyely connected to said sprocket and winding member and disposed between the opposite end oi the machine and the portion thereo't carrying; said sprocket and winding' member. -q

3S. In a mini o' machine. the combination o't an elongated irame having); a cuttinesdischarcje channel in the torward end thereot opening' to one side of said trame. an eudless cutting?` elemem supported by said frame and having` its rear end disposed in said channel. a motor` driving' connections for said cutter chain. and teed oneratine' means to more .said minina' machine laterally on its bottoni alone; a mine door; said i'eed means including' a planctaiwv cjcarinsr harina' a portion thcreo't extendino' below the upper boundary and to one side ot' said cuttings channel.

39. In a miningmachine, the combination of an elongated frame having a cuttings discharge channel in the forward end thereof opening to one side of said frame, an endless Cutting element supported by said frame and having its rear end disposed in said channel, a motor7 driving connections for said cutter plane, and feed operating means to move said mining machine laterally on its bottom along a. mine floor, said. feed means comprising a planetary gearing mechanism disposed on a transverse axis having a porn tion thereof extending below the upperboundary and on the closed side of said cnttings channel.

4:0, In a mining machine, the combination of an elongated frame having a cuttings discharge channel in the forward end thereof opening to one side of said frame, an endless cutting element supported by said frame and having its rear end disposed in said channel, a motor, driving connections for said cutter chain, and feed operating mea-ns to move said mining machine laterally on its bottom along a mine floor, said feed means inoluding'gearing having a por-- tion thereof extending below the upper boundary and to one side of said cuttings Channel.

41. In a mining machine, the combination insonne of an elongated frame having a cuttings channel in the forY rd end thereo' an endless cutting eiement supported by said frame and having its rear end disposed in said channel, a motor disposed rearwardly of the rear end of said cutting element and lia-ving driving connections therewith and feed operating means to move said mining machine laterally7 on its bottom along a mine floor, said feed means including gearing having a portion thereof extending below the upper boundary and to one side of said Cuttings channel.

42, In a mining machine, the combination of an elongated frame having a cuttings channel in the forward end thereof, an endless cutting element supported by said fra-Ine and having `its rear end disposedv in said channel, a motor disposed rearwardly of the rear end of said Cutting element7 driving connections for said cutter chain, and feed operating means to move said mining machine laterally on its bottom along a `mine floor, said feed means inoltnding gearing having a portion thereof disposed outside of said channel and extending belowT the upper plane of said cutting element.

CHARLES E. DAVIS.

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