US1941008A - Mining machine - Google Patents

Description

Dec. 26, 1933. M, P. HOLMES MINING MACHINE l QKN a .mQN Q NNN ..4 Y /1 1l H m f I lwmmwmmwv, /f/I ,ffl N w um o y 5 o o oooowomowwO oJ? NNN n@ Q T; N o w\ o o o QQ MN N U o N Nm SN E @www w n RJ nm l hw l .R. A o N, 9 www l 0 M. oooooooo o DE w @mw w o Nw m .J |I F ww mwN mN l U1|Hv L- 1. H ....Mfmm Pli. FN .N

M. P. HOLMES MINING MACHINE Dec. 26, 1933.

Filed July 14. 1930 5 Sheets-Sheet 2 l Dec. 26,` 1933. MqP. HOLMES 1,941,008

MINING MACHINE Dec. 26, 1933. M R HOLMES 1,941,008

MINING MACHINE Filed July 14. 1930 5 Sheets-Sheet 4 jf" 45;@ 7 65 zig ya (zza/fg.

Dec. 26, 1933. M. P. HOLMES k 1,941,008

MINING MACHINE Filed July 14, 1950 5 Sheets-Sheet 5 zzz 4 l zz man

Patented Dec. 26, 1933 NHNINGMACHINE' .MorrislrlHolnic's, ClaremontgNfHr, assignorto` Sullivan xvlVIachiner-y-v Company,

yMassachusetts Y a corporation of l, Application July.' 14,`1930. seriarNq. 4673er zo claims..r (crass-28)..

This invention .relatestomining machines and more particularly to coalrniningmaohines of. the'. shear cutter .type adapted to :cut ve rtical. kerfs.. in thecoal., 5..: An object.o,this. .invention is to provide. an

improved coallmining machine. Another object is to providean improved.. coal miningmachine of Vthe Wheelr mounted, track-cutting. type adapted.

to insert vertical-oi.shear` cuts in the coal. Still,

lQanother objectof thisfinventionrisito provide an improved :track cutting mining machinehaving improved .keri cutting .mechanism and Vimproved means foroperating the. kerf cutting mechanism, for v.guiding the, cutting .mechanism d.uring =the'- 15...'cutting .operation, and for .propelling-. `the machine .about themine- Astilliurthe'r Objectis. to provide .an improved'.shearingsmachine .of .the self-propelled., truck ,mounted typewhereinimproved means are provided formoving' and guide 20 ing.` the shear. cutting mechanismrelative to the truck during the. cutting .operation and or.prof: peiling. the; truck along. .the .mine .trackway dur-. ging. transport. Yet another" object is to .provider an improvedwshearingmachinesof. tlie pivbted keri. cutter tvpehavingimproved means forimoving` the :ker-i cutter aboutrits pivotiand fori feed-1 ing the Keri cutterreiative tothecoalduringgthe cutting. operation. These and other objectsf. of'.- the. .inventionY WilLi howeverhereinaften more.. fully appear..

The. invention is exemplified in the novel connhinations. and arrangementsyoi' parts'- shown in the. accompanying drawingsand described inthe; following Aspecification and. as more particularly, 35 .pointed outin the. appendeclclaims; .v in the .accompanying drawingsathere is shown. for .purposes oi. illustration one invention may assumeginpractice..

n these.drawings,;- g. .1 is. a :plan .view .of anillustrative --ernbodi1; mentof .theim'eroved mining machine. 1

Figj-2 isa .side elevational view-of the machine. shown in Figgl. f if k1 3 an enlarged.v fragmentary side..elevaf. tional View of the vmachine Ashown Ain .-Figi. 2.

4 isiy @.horiz'ontal sectional.vievvltaken..r

substantiallyon line of Figs...2 and.;r

Fig..-.5 is a transverse .verticali sectional ivlew=. taken substantiallyonline. 5,-.-5. of Figs. .2 land f 3 Fig.. 6 isla .transverse vertical s'ectionalfiview'- taken sub'stantially [on line. -fliof Figf.. 2.`

Fi'gr is a .detail .sectional viewltaken .sub-, stantiallyon lineYI-of Fig..6.;

Fig. Bris a transverse .verticalsectional:.view. v y taken .substantially online 8-8; of Figs..2 and` 3.`

4105-10 of Fig. 6. .f "f

locking. mechanism .lateral movement of the guding frame.

Fig. 15 is an end elevationalview illustrating the 'guidingfframennd ,the adjustable support thereg there is shown- -erate .While supported..

the forward endl of ing. movement about a ithe ,guiding .framez ,form which.` the;

f A"propelling mechanism 4..

the Wheeled truc k 1 it will;`

.be:,observed that' the same herein comprises a 951g sectional. view taken online Fig. 10A is ya detailsectional takenlon line Fig. 1 1 Vis a detail sectional view, .illustrating a. portion of, the clutch controlling mechanism.

Fig., 12; is ,a .detail sectional;vievvillustrating V the lcontrol mechanism interlock mechansmfor. the speed; control handles.,

Fig. 14 isa.:

for. 5 InV this illustrativeembodimentof the invention Wheelmounted, shearcutter type adapted toppgenerally. comprising a gatedswiveled guidingirame 2 arranged horizontally on fthe truck, kerf cutting mechanismgenerally designated- 3; and truck; propelling mechanism 4. The guidingframez is mounted at a, coal mining machine of r the f '75if y by aymine trackway andY Wheeled truck 1, an elonfor the reverse frictions Fig. 13 is a detailsectional-view illustrating, the

derail scnonai'view il'mstraringihe l for preventingv tilting and miie.

the truck `for horizontal swingj vvertical axis at 5 andthere iis .provided forsupporting the forward end of anadjustable support gener ally designated 6.- The guiding frame 2 is adapted relative to the truck and the the .frameduringg the cutting operation. The

Novv.A referring to ,to besWiveled yinto different ,'arlglllaKDQSlOnSj.. n kerf cutting mech- ,anism :is guidedfori movement longitudinally 0f 10 suitably braced by transverse, trusses andhavf Ward end of the; truck 13 having secured thereto beneath the same han. Vannular frame'or :swivel vbearing 14: carrying.'-

series-of;horizontaland verticalgrollersl and l'fjournaledon pins 17 carried by the fraine f.1%.

Theihoriz'ontal' rollers 15 engage Lthe llllergpelp i secured to the angle members 10 of the truck, while the vertical rollers 16 engage the upper surface of a horizontal plate 19 likewise secured to the angle members 10. These elements form a horizontal turntable structure on which the guiding frame 2 isvmounted for horizontal swinging movement relative to the truck. As shown in Figs. 2 and 6, rigidly attached to the swivel plate 13 at the outer sides thereof are angle members 20 having vertical flanges rigidly secured to the depending ilanges of the parallel longitudinally extending angle members 21 of the guiding frame 2. These angle members 21 extend a substantial distance forwardly and rearwardly of the turntable structure with the rearwardly extending portions thereof overlying, when the parts are in the position in Fig. 1, the truck.

For holding the elongated guiding frame 2 against vertical tilting movement and lateral swinging movement relative to the truck when the guiding frame is in the position shown in Fig. l, i. e. the transport position, there is provided as shown in Figs. 2 and 14, a transverse supporting member or support abutment 22 carried vvby the truck and on which the rear'end of the guiding frame 2 rests when the-frame is in its central longitudinal position shown. Suitably journaled within bearings carried by the angle A-"members 10 of the truck is a` transverse rod or "Shaft 3 members when so positioned prevent lateral.

swinging movement' of the guiding frame relative 4to the truck. When the stop members are swung 'downwardly outof engagement with the guiding frame the latter may be swung horizontally relative to the truck as hereinafter described. To prevent vertical tiltingmovement'of the guiding frame relative' to the truckthere is provided in -one of the stop plates 25 a slot 26 adapted to engage a projecting pin. 27 secured to one of the angle members of vthe guide frame and this slottedmember and pin holdA the guiding vframe downl in position against 'the transverse support 4abutment 22. A latch 27a carried by the stop plate which is slotted is adapted releasably to cooperate with the pin 27 to hold the stop plates in position. y The guiding frame 2'forms anelongated guideway or trackfor the kerf cutting mechanism 3 along which the latter moves during the cutting operation, and this kerf cutting mechanism includes a frame or sliding support 30 having guide plates or shoes 3l attached to the lower portion thereof for slidably engaging the upper plane surfaces of the horizontal flanges of the angle members 21 of the guide frame 2. The frame or Support 30 has a depending portion presenting parallel lateral guide surfaces 32 engaging the `inner Vvertical surfaces of the angle members 21 as shown in Fig. 6. For holding the sliding support 36 in position on the guiding frame, that is to prevent vertical displacement of the supportfrom the guide, there is Vprovided angle Amembers 33 secured to the sides of the support 30 and having inwardlyprojecting horizon tal flanges underlying the outwardly extending horizontalfflange's of the angle members 21 'of the guiding frame. It will thus-be seen that the structureV described-above forms a sliding suphaving secured thereto an r`operating' port for the kerf cutting mechanism and is slidable longitudinally of the guiding frame 2 between the ends thereof as hereinafter described. It will be evident that, if desired, suitable antifriction rollers may be provided between the sliding support 30 and guiding frame and that various other arrangementsy may be employed for guiding the cuttting mechanism on the guide.

Now referring to the improved kerf cutting mechanism per se and more particularly to the driving mechanism for the cutting mechanism, it will beobserved that mounted on the frame or sliding support 30 at the rear thereof, as clearly shown in Fig. 3, is a horizontal motor 34 having its power shaft 35 horizontally disposed and extending transversely of the support as shown in Fig. 4. Attached to one end of the motor pcwer shaft is a spur pinion 36 meshing with an intermediate or idler gear 37 journaled on a stub shaft 38 suitably supported within a gear housing 39attached to one side of the support 30.

Herein formed integral with the shaft 41, at thel opposite end thereof from the spurV gear 40, is a spur pinion43 meshing with a large spur gear 44 which herein constitutes the main driving 'gear forthe cutting mechanism. This gear has a hub portion 45 mounted on a. horizontal transversely extending shaft 46 arranged parallel with and in advance of the shaft 41. Surrounding the hub 45 of the gear 44 is a sleeve 47 which also forms a part of the bearing structure for the driving parts. Secured to the hub 45 by bolts 48 is' the hub of..a bearing member 49 supporting a bearing sleeve 50 on which a chain Asprocket 5l is journaled. This chain sprocket is connected by a semi-permanent clutch 52Vto the sleeve 47 and engages and drives an endless cutterbit carrying cutter chain 53 mounted for orbital movement. on the margin of an elongated planecutter bar 54. This cutter bar is adapted to swing in a .A

vertical plane and is arranged to move in planes `at one side of the guiding frame 2, as shown in Fig. '1. `In the present construction the cutter bar 54 isprovided with an annular Vhub portion 55V supported for rotative movement within a bearf ing sleeve 56 suitably carried by the support 30.

.Also attached to the outer surface of the cutter bar is a plate 57 which is attached to a cylindrical `Avbearing lmember 58 rotatably supported on the outer Vextremity of the transverse shaft 46. Secured to a flange-like portion of the hub 55 securedto the cutter bar is a frame member 59 in turn secured to'a bearing member 6G rotatably mounted in a bearing sleeve 61 likewiseY mounted within the support 30. It will thus be seen that the frame members 55, 53 and-60 form a horizontal pivotal support for the cutter bar. As illustrated, the spur gear 44 'is connectible to the sleeve 47, to which the chain sprocket 51 is connected, by means of a sliding pin clutch 62 including'clutch pins 63 slidably mounted in apertures 64 formed in the hub of the gear 44. These pins when in their connected position (as shown in Figs. 4 and 6) project within sockets 65 formed in the inner surface of the bearing sleeve 47. For

sliding the clutchpins in and out there is propins 63.v The members 66 are attached'to an ani'. i i) f with a suitable aperture or tion of one end of an operating lever 133-pivotedY 123 connected by a link to a pivoted operating handle 124. As shown in Fig. 8, keyed to one end of the shaft v121 is a chain sprocket 125 connected by an endlessr chain 126 to a chain sprocket 127 secured to the rear truck wheel axle. The front and rear'truck wheel axles are connected in drivingrelation by a chain and sprocket connection 128 as shown in Fig. 2. It will thus be seen that when the clutch is applied, the truckv Wheels may be driven at a relatively high transport speed from the motor 34 through the spur gearing 36, 37, 40, 42 and 44, bevel gear 69, one or the other of the reverse bevels` 70, 71 .(dependingupon which ofthe re.

verse frictions 73, .74 is applied), shaft 72, shaft 75, spur ' gear 106, 107, 108, worm gearing 118, 119, transverse shaft 121, and the chain and sprocket' connection 125, 126, 127 connected to` the truck wheels.

The operating means. for the various clutches will now be described. It will be noted that the annular clutch shifting member 66 for thev pin clutch 62 is suitably grooved for the reception of a projection of an element 130 secured to a transversely disposed actuating rod 131.` IThis actuating rod as shown in Fig.12 is provided slot 132 for the recepon a bracket 134 secured to one side of the slid-V ing support 30. The operating meansfor the reverse frictions 73, 74 includes clutchapplying iements 135, 136 and a central shipper element 137. Connected vto this shipper element isv a shipper yoke 138 keyed to a transverse operating .frod or shaft 139. Also keyed to this shaft or rod is an arm 140 carrying a trunnion nut 141 threadedly connected to a screw 142 formed on an operating shaft 143. The shaft 143 has secured thereto at its outer end an operating l,handle 144. 'Means are provided for connecting one of the clutches 77, 86 only when' the othery isV releasedand for'shiftingthe clutch 94 and herein include'clutch shifting elements 145, 146 connected to the sliding-elements of the clutches L.. '77, 86respectively. These elements 145, 146 are slidably guided on a vertical rodv 147 and have teethor gear segments' 148,149 with which gear elements 150, llrespectively mesh. These gear elements are carried by parallel operating rods or shafts 152, 153 respectively, and these shafts:

have secured at their outer ends operating handles 154, 155. As shownV from Fig. 13, the hub portions of these handles are notchedat 156 and 157, while slidably'guided within a bracket 158 i' is an interlocking pin 159. It will thus be seen that when one of the handles is in its releasedv position, for instance the handle as shown in Fig. 13, the interlock pin 159is projectedwithin vthe notch 157 in the handle while the inter-V .lock pin is released from the'notch in the handle 154, thereby enabling the latter to be operated to actuate its vrespective clutch. If it is desired to operate the handle 154 or 155, the handle 154 must rst be moved into itsv neutral position as shown in Fig. 13, thereby permitting-the handle 155. to be turned, sliding the interlock pin 159 into engagement with the notch 156 inthe handle 154, preventing movement of the latter when the other clutch handle is in itsclutch applying position. The clutch 94 is provided with an operating handle 160 'secured to a hollow shaft l162 rotatably mounted on the shaft 152.V Formed integral .with the shaft 162 is a gear element 163 meshing with theteeth of a gear segment orv rack 164 formed. on a vclutch shifting member 1.65

.f angle member of the support..Vv

slidably guided .on a vertical rod 166. This element 165 is provided with a projecting portion 167 engaging the groove in the shiftable element of the clutch 94. Y

As mentioned above improved meansy are promeans, which has hereinbefore been generally designated at 6, comprises angle .members .168

pivoted at 169 at the sides of the guiding frame2.l

These angle members are connected at their for- .Y

ward ends by a transverse angle member .1170` forming a shoe adapted to engage themine floor i when the supporting means is in its adjusted supporting position. Theupstanding anges .ofa

these angle members 168 are notched at 171 for engagement with the feet 172 of adjustable screw f jacks 173 of a usual design.V These jacks are swivelly mounted at 174 for universalfmovement and are supported by plates 175 attached'to the transverse angle member 176 connected to the forward ends of the angle members 21 of the guiding frame 2. It will thus be seen that when the angle members 168are swung downwardly with the shoe 170 engaging the mine floor and.l

the jacks 173 are in their operative position as shown in Fig. 2, the forward end of the. guiding frame is supportedA against downward tilting movement. During transport of the machine about the mine, the jacks 173 are swung upjout of the way, the angle members 168 swungupwardly (as shown in dotted linesin Fig.2) Yand held in this inoperative position-by a pivotedfhook 177 engaging a pin 177a carried by the transverse Suitably secured tothe rear truck aXleis a,

frictional braking device 178 including a brake Adrum and a cooperating brake band, andthis braking device is 'adapted to;be oper-ated through connections 179. The braking device is adapted to control rotation of the truck mining machine is moving along aj steeply inclined trackway,

against rotation during the-cutting operation.,

Electrical Aenergy is adaptedto be conducted-to Wheels vwhen theV and also to lock the truck wheels the motor 34 through a usual flexible conductor g cable 180 Woundfupon a-cable Areel 131V driven. throughan endless belt connection 182l connect-"- ing a pulley 183 secured to av reel andato a pulley 184 Vformed on the housing element of the'fric- .tion clutch 120 (see Fig. 8).v As the machine moves along the minetrackway the cable ,reel is` adapted to windin or pay out the flexible conductorcable 180 in the manner wellv understood in the art. Mounted on the rear end of the truck `frame is'a usual controller box 185 connected in the usual manner through exible conductor ele- .v

ments 186 to the flexible conductor cablevon the cable reel and through suitable. connectionsgto the motor 34.

The general mode of operation of the improved i mining'machine` will now be briefly described.

VThe machine is propelled-about theV mine Yat a Vrelatively fast transport" speed, it being yunderl- 140.

stood that the elements of Athe machine are in the-position shown in Fig. l at that time with the cutting mechanism support held in'its rear-l ward position by the hook 169 and with the final driving gear on thecutting mechanism support30 in mesh with the initial on the truck. The fast feed truck drive is controlled by the reverse clutchesk 73, 74 and the truck may be propelled' in either of opposite directions at a relatively high transport speed upon Vdriving gear 108.

1. namens l A,application'of one-,on thenotherpff'the, clutches ablesupportjs -thenlmoved into Vits' operative 73, 74. YAs the Amachine. is transported aboutthe supportinglpositionland Athe cutter` bar is swung -mine the,guiding frame; is in, its central kalined upwardly,.;then fedrectilinearly-,to Aeieet the positionaand is lockedl against :vertical tiltingand sumpng cut, swung downwardly and .thereafter z 5-lateralswingingmovementspby the stop .plates 25 .moved rectilinearlyrearwardly tolefect itswith- 80 and at that time the' adiustablegfront;supportff drawal .cut in the. same mannereasthat described is in its raised inoperetve-=postion When-the above. f'I,h,ese ,and,l other operations of the im- -1working;facefis reached Jthe, friction clutch), l2() .Y proved ,miningapparatus willbe clearly apparent controlling :thevhighgspeedftruckdriveis,released I,tothosegsklledflinithe art.` v v i'.

1.1.10 and the friotonal braking device l178 set,;.lo ol: As a result ol-thislinvention-cit,will belnoted 85 "ingrthe truck Wheels? against ygrotation. flirit v.is ,-,-.that.an improved ..mining. machine; is; provided desired jtoY insert aV sl1ear-cutin4 th'ei coalwface which,is.,capable.oi-:insertingl-a Shearer vertical directly in advance ofthe guidingframe 2; ,.w hen out .in the...coal. .facend. having,;improved,}ad the parts. are in the position shownin.4 Figs. Land jinstable..guidiiigJneans.LY .herebyj'a k,kerflr maybe 1,15 12, the operator detaches thehookx177 from "the ',cut in tlgle,.c,o'alVv While. themachine is mounted 90 lpin 1772, .of :thef..adjustablegarpnt:support @2L-nd ona curyed track...aieatureespecially desirable, drops the latter into its/lowermostlposition with Whemcutting groomne'cks.- It Awill furtherbe the angle member -170 engaging 1;tl1einne.r.il0or. notedlthatan improvedlcoal .mining machine .is :Thescrew ijacks 173 arepthenpositioned,- and .providedwherein the.,kerfcutting -mecl'ianisrn is e720 suitably adjusted. The hoole `11D9-.is ,then released .suppprtedmona..guideway,;,carriedby awheeled ,-95 V,andthe handle 154ismanipnlated connecting :.,truckhe'itebyllenabling,Lthegcutting.mechanism the clutch 77. iUpon: application of thegfriction J to., .oneratewwhile the truck. remains stationary.

, clutch v73 the cutter-.bar ,diis swungailpwardy ,.Thisfeatureis.LeemlysndvantageOuS Whenthe Y at a bar positioning.speedthroughfthebar swing L tracksis:unevenorgwhenpitching ,seams orf, roll- L25 gearing 89,190 andthe gear segment, S32-attached ging-.bottoms are encountered. @Itwill'furtherbe .1 00

,Y to the cutterbar to.aposition,whereinl its puter noted that by plOVding the kerf Cutirlgffmeh'- extremity is. adjacentitheimine, roof Iatthe tace. anismcmountednon Aagsep-arate.fgudingiframe Theoperator `then;actuatesthe LhandlenlBS` lto .,vJhichds adjustable, relative to. .'the truckgitgfis. connectthe cuttenchainlutelnlthereby,con possible ,toginsjert iverticallkerfs' in ,themcoal at gt3() necting the cutterchaingin drivingrelation with yariousfangles.relativelto;thelongitudinal.dimen- 105 Y the motor and .as airesultethelcutter.chaingiis .,siongofethegmahinearld under vc eri'ljan' conditions rapidly circulatedlahoutethe `ignargin. 'othe,cut- :kerfsmay beicutinjthe coalatsubstantially 'right ter 13H54, The handle 16o-is thenmanipulated, .anglesto Lthe.longitudinal.dimensionofjthejmaconnecting the Worm. 96 ,to its .drive `and upon .'lchine. Theseendsntheradvantagesland. novel g55 .application of"- the friction;clutch .;73, .1 the; feed results...,attainabler.byethelimprbyed..mining ma- 110 sprocket 100 is slowlyrotated, Amoving theslid- .chine will be obvious to tho,'s'esl\:ille'd ,in.thelart. .ing cutting mechanismY support together with the awhile:thererisplini thislapplication specically cutter bar carried thereby. rec tilinearly` ,alongl the vrdescrilmd-,one.idrrrisvhichtheinvention,'niay as-r guideway :2 relative .to theieed chainllgata =.s.ume .inpraetice-y it ivillbeiunderstood that this 4o cutting speed to effectsumpingof vl,the cutter -formf.thesameisshown for .purposes otillusk115 bar lwithin the coal. Upon;the completionof tration, iandithat,.thetinventionimaybe modified the sumping cut the clutches 13` and 94 are re- `,and.embodiedlinnvarous; other.-;.forms.;without leased and the .clutch-.86. connected,end upon departingfromitsspiritor .thescopeof thea'papplication of the friction clutch; ,74the cutter ,.pendedfclaims, y

34,5 bar is swung downwardly in its plaI,1e.,-atageut-V ..-Whatf,,Ieclaimrlaslnew anddesire togsecurefby 120 tingspeedto eiect its verticalswingingcut,the LettersiBatent is: Y Y i li n t g clutchese, lfethereafter.; being released. 'ljne I 1..ln.a,mnine,ma9hine. aivheeled truck adapt- Vclutchieis'therragainconnectedarnzluponaped to travel along a trackway, a` guiding vfr'arne l Uplication of the friction clutch 74 ,theeutting ,..pivota11y--mounte'd oni saidtrllek.f.01t horizontal 1,50 {imechansm support isslidarectilinearly,itearwetrdf swingingmoyementlelative`thereto;;keri` cutting 125 vly `alongthe guidewayZat awcutting'speed, vvithimechanism mounted. onsaidguidigirame and' drawing -the .cutter v-barrefrorn theA coal.` A'I he :includingaisldngsupportand.akerf cutter piv- :clutches l94 vand 74are;then. released andthe Yliatallyamounted;thereon,ahorizontalernotor car- ML,clutch 77 connectedganduponapplicationoi the nried,, loyisaid supportlandjarranged Vtransversely v .g55 Ufricti'on clutch ,73= the. cutter, bar is swung up- .-,thereofgdevices.drivenbysaid lmotoriforknioving 130 ,wardly into. its transport positionsasgshown in said cutting rnechanismerelative to said'rguiding .:Fig.. 2'. .Thezcutteresppporting framefis, thenframe.iandjdevicesllldiven-by/saidlmotorffor --slidintoits rearmost.positionybringing the truck L; swinging said,kericuttenaboutits;pivot; .-driiving gears..l07, 108into meshing engagement v.,2.,Inaminingmachine;awheeledtruck.adaptv e160 and the support is vlocked intopositionzby.the ed to travel along.a;trackway,tauidng frame 135 'hook.1109. -f-Thel'adjustable frontsupportiisthen' .;.pivo.tal1y...molunted onsaidz.truck,.for horizontal moved into its ,uppermost inoperativegposition, .eswingingmoyementl relativie'ith'ereto,v ke'rfcutting and upon application ofthe frietionclutch. 7d and mechanism mounted; onesaidguidng '.framel and y -.thev.clutchi120, the machine is ,propelledcreanfincludinga slidingsupportaridakerfzcutter piv- @g55 Vwardlyaway .fromthe coaliaceat `a:,relatively .1;otallyernountedlthreont ahorizbntal'motor car- 40 fast transport speed. IfjitLis desired .to inserta,..,lrie.d' by.,said;Isiippom..and,arrangedtransversely Y .shear cut .zatvarious angles relative to .the-.cena thereon;deyices..ldrivenl;bysaid -Inotorforinov-A i vtral :longitudinal `vertical plane r of1 themachine, ,in'g saidcutt'inggmechansin relati'vdtoz said guid- --this maybe accomplished simply by releasing the:-..,ingliran1e,zir devicesldrivenby saidmotor :for

:19 .-stoptplatesv 25925,* moving.thecutting.mechaswinging.saidiltericuttergaboutgitsf.pivoty and 'M5 nism ,support 30 .slightly forwardly tolbring the :i.dex/zicesidiivenbysaidmotoriondrivingxthe'truck v itruck drivinggears:107,?{108 yout- Lofniesh .and ,ivheelsltoopropelthellachine --swinging the guiding.frame.2.horizonta1ly. about Balilla,miningarnahine, azportable support, zitheturntablefaxiszuntil theqparlts .assurriethegdevfa'rguiding,4 frame pix?.Y tally. mounted-:thereon for i115 sired angularly related position. The adjust- .hori,zo`ntabswingingmmoyement relativeiheret'o,-io y position.

said guiding frame extending horizontally a substantial distance in advance of said support, kerf cutting mechanism mounted on said guiding frame for movement therealong and including a pivoted kerf cutter, `and adjustable supporting means for the forward end of said guiding frame including an element pivoted on said guiding frame and engageable with the mine floor, and an adjustable screw jack for holding said element in its adjusted supporting position.

4. In a mining machine, a .portable support, a guiding frame pivotally mounted thereon for horizontal swinging movement relative thereto,

said guiding frame extending horizontally a substantial distance in advance of said support, kerf cutting mechanism mounted on said guiding frame for movement therealong and including a .pivoted kerf cutter, and adjustable supporting H means for the forward end of said guiding frame including elements pivotally connected to said guiding frame at the sides thereof and engageable with the mine floor, and cooperatingy adjustable screw jacks arranged at the opposite sidesof said guiding frame and engaging saidl elements for holding the latter 5. In a mining machine, a frame, a kerf cutter pivotally mounted thereon, a motor on said frame,

driving connections between said motor and said f 3'0 kerf `cutter including a kerf cutter driving element, a shaft driven by said driving element, a vertical shaftk driven by saidshaft,A mechanism driven by said Vertical shaft for feeding the machine at a cutting speed, and mechanism driven by said vertical shaft for swinging said kerf cutter about its pivot. A

6. In a mining machine, a frame, a kerf cutter pivotally mounted thereon, a motor on said frame, driving lconnections between said motor and said kerf. cutter including a kerf cutter driving element, a shaft driven by said driving ele- Vment, a vertical shaft, connections between said shafts including reverse gearing, mechanism driven by said vertical shaft for swinging` saidl kerf cutter about its pivot in opposite directions, and mechanism driven by said vertical shaft for feeding the machine in opposite directions at a cutting speed.

7. In a mining machine, a frame, a kerf-cutter pivotally mounted thereon, a motor on said Vframe, :and constantly operative mechanism,

driven by said motor and operable at .will for swinging said kerf cutter about its pivot in oppo- Ysite directions at different speeds including reverse gearing, a vertical shaft driven thereby, and driving connections between said vertical shaft and said kerf cutter including plural speed gearlng, said reverse gearing being at the upper end Y; of said shaft and said plural speed driving conment, a shaft driven by said driving element, a

vertical shaft, gearing connecting. said shafts,

- mechanism driven by said vertical shaft for feeding the machine at a cutting speed, and mechanism driven by saidrver'tical shaft for propelling the machine at a high transport speed.

9.l In a mining machine, a frame, a kerf cutter pivotally mounted on said frame, a motor on said frame, driving connections between said.- motor and said kerf cutter including a kerf cutter drivingielement, a shaft driven by said driving elen their adjusted SuDDOltng -tical worm, a worm wheel meshing therewith and ment, av vertical shaft, Agearing connectingisaid shafts, mechanism driven byA said vertical shaft for feeding the machine at a cutting speed, mechanism driven by said vertical shaftl for'propelling the machine at a high transport speed; and mech-V anism driven by said vertical shaft for swingin said kerf cutter about its pivot.

l0. In a mining machine, a frame, a kerf cutter pivotally mountedthereon, a motor on saidiframe, mechanism driven by said motor for swinging said kerf cutter about .its pivot includingra shaft alined with the kerf cutter pivot, a vertical shaft driven thereby, a Vertical worm on said vertical shaft. a worm wheel meshing therewith and connections between said worm wheel andY said .kerf cutter for swinging the latter, and mechanism driven by 'said motor for feeding the machine1at a cutting speed including a second vertical worm, a worm wheel meshing therewith, 'and a feed member driven by said worm wheel. j "95 1l. In a mining machine, a frame, a kerf cutter pivotally mounted thereon, a motor on said frame,

Amechanism drivenby said motor for swinging saidl kerf cutter about its pivot including averconnections between saidlwormA wheel'and said -kerf cutter for swinging the latter, and mechafeed member driven by said worm wheel and arranged coaxially therewith.

l2. In a mining machine, a frame, a kerf cutter. mounted on said frame, a motor on said frame, driving connections between said motor and said kerf cutter including a kerfA cutter driving element, a horizontal shaft Vdriven by said kerf cutter driving element, abevel gear nxed to said shaft, a vertical shaft, reverse bevels coaxial with said vertical shaft and meshing with said bevel gear, clutches for 'selectively connecting said reverse bevels in driving relationy with said vertical shaft,.and mechanism driven by said vertical shaft for feeding the machine at a cutting speed. y

13. In a mining machine, a frame, a kerf cutter mounted on said frame, a motor on said frame, driving connections'between said motor and said kerf Ycutter including' al kerf kcutter driving element, a horizontal shaft driven by said kerf cutter drivingwelement,l `a bevel 4gear fixed to said shaft,`a vertical shaft," reverse bevelscoaxial with said vertical shaft and meshing with said bevel gear, clutches for selectively connecting-said reverse bevels in'ldriving relation with T130 said'vertical shaft,` mechanism driven by said vertical shaft for feeding the machine at'i a. cutting speed, and lmechanism driven by saidavertical shaft forv propelling the machine at ahigh transport speed. L "1'35 14. In a mining machine, a frame, aV kerf cutter pivotally mounted on said frame, a motor onsaid frame, driving connections betweensaid motor and said kerf cutter including'a ykerf cutter driving element, a horizontal shaft'driven by "1340 said'kerf cutter driving element, 'a bevel gear Xed to said shaft, a vertical shaft, reverse bevels 'coaxial with said vertical shaft andmeshing'with v`said bevel gear, clutches forselectively connecting said reversebevels indriving relationfwith'i1`45 said vertical shaft, mechanism driven bysaid vertical shaft'for feeding the machine at :a cutting speed, and mechanism driven by saidV vertical shaft for swinging said kerf cutter. about its pivot. .150

15. In a mining machine, a frame, a kerf cutl ter mounted thereon, a motor on said frame, and driving connections between said motor 'and said kerf cutter including a horizontal transversely extending shaft, a kerf cutter driving element, and gearing connecting said shaft and driving element in driving relation, a parallel shaft driven by said gearing, a vertical shaft, gearing connecting said parallel shaft and said vertical shaft, and mechanism driven by said vertical shaft for feeding the machine at a cutting speed. I

16. In a mining machine, Aa frame, a kerf cutter pivotally mounted thereon, a motor on said frame, and driving connections between said motor and said kerf cutter including a horizontal transversely extending shaft, a lrerf4 cutter driving element, and gearing connecting said shaft and driving element in driving relation, a parallel shaft driven by said gearing, a vertical shaft,'

gearing connecting said parallel shaft and said vertical shaft, mechanism driven by said vertical shaft for feeding the machine at a cuttingV speed, and mechanism driven by said vertical shaft for swinging said kerf cutter about its pivot. l

17. In a mining machine, a frame, akerf cutter mounted thereon, 'a motor onsaid frame, and

- driving connections between'said motor and said kerf cutter including a horizontal transversely extending shaft, a kerf cutter driving element, and gearing connecting said shaft and driving element in drivingr relation, 'a parallel shaft driven by said gearing,y a vertical shaft, gearing connecting said parallel shaft andv said vertical shaft, mechanism driven by said vertical shaft for feeding the machine at a cutting speed,'and

mechanism driven by said vertical-shaft for propeiling the machine at a high transport speed.

18. In a mining machinaa frame, a kerf cut-'- ter mounted thereon, a motor on said frame, driving connections between said moto-r and said kerf cutter 'including a horizontal transversely ex?.

tending shafta kerf cutter driving element and` gearingv connecting said shaft and said driving element in driving relation, a parallel shaft driven by said gearing, a vertical shaft,'connections between said parallel shaft and said vertical shaft including reverse gearing for effecting rotation of said vertical shaft in'either of opposite directions, and mechanism driven from said vertical l shaft for feedingthe machine in opposite direc- I driving element in driving relation, a parallel shaft driven by said gearing, a vertical shaft, connections between said parallel shaft and said vertical shaftincluding reverse gearing for effecting rotation of said vertical shaft in either of opposite directions, mechanism driven from said vertical shaft for feeding the machine in opposite directions at a cutting speed, and mechanism driven by said Vertical shaft for swinging4 said kerf cutter .in opposite directions about its pivot.

20. In a mining machine, a frame,a kerf cutter mounted thereon, `a motor on said frame, driving connections between saidy motor and said kerf cutter including a horizontal transversely extending shaft, a kerf cutter driving element and gearing connecting said shaft and said driving element fin driving relation, a parallel shaft driven by said gearing, a vertical shaft, connections between said parallel shaft and saidvertical shaft including reverse gearing for effecting rotation of said Vvertical shaft in` either of `opposite directions, mechanism driven from said vertical 'shaftfor feeding vthe machine in opposite directions at a cutting speed, and mechanismdriven by said vertical shaft for propelling the machine in opposite directions at a high transport speed.

MORRIS P. HOLMES. j

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