US1107239A - Mining-machine. - Google Patents

Description

l H. A. KUHN & W. W. MAGPARRBN.

MINING MACHINE.

APPLICATION FILED NOV. 30, 1908.

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WTNE sas y wym/ H. `A. KUHN n W. W. MACPARREN.l MINING MACHINE. I. v` v APPLICATION FILED NOV. 30, 1908. 1 1 07,239, Patented Aug. 11, 191L 5 SHEETS-SHEET 2.

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FIG. 3.

INVENTORS 'Y A. KUHN & W. W. MACPARREN` MINING MACHINE.

APPLICATION ILBD NOV. 30, 1908. 1, 1 07,239. PatenteaAug. 11, 1914 5- BHEBTS-SHEIST 3.

m 55 '47 48 Flam.. F1 5B H. A. KUHN & W. W. MAGFARRBN.

' MINING MACHINE.. APPLICATION FILED NOY. 30, 1 908.

Patented Aug. 11, 1914 E! SHEETS-SHEET 1.

INVENToRs 1 q du' ssss `iuie'neee.

"UNITED .STATES PAIEIT'I OFElCE.

MERY A. KUHN AND WALTER W. MACFARBEN, :F PTTSBUEGrH, .PENNYLVAN;

SAB) MAGERREN .ASSIGNOR TG SAD KUHN.

Minmemnennm Speelcetion of Letters Fatent.

Patented firing. il, i'fltit.

[o all whom 'it may concern.'

Be it known that we,. l{ennr A. Kumi I` and WAmnn'W; hftecrinnnmcitizens of the f and useful improvements in Mining-Me front end. of the machine.

chines, of which the following is n specificetion. A A

Our invention relates to a. class of mining machines which is adapted to mine the full thickness ot' the coni seein et once, end clislodge the coal from ite native beol'without the use cf ex Jloslvee.

The speeilil to provide e machine which is anpted to Work under e variety ci conditions, Such as cutting entries orrooins; which is strong and substantiel, 'simple in operation, :imi readily controlled.

Further obliects of our invention will be specifically pointed out hereinafter.

Referrine to thedrnwings, Figure l is a plan view showin vthe inechine making n cut across the entici' en entry or narrow room. Fig. 2 .is asiiie elevationot the saine. Fig. 3 is a, 4side elevation partly in section oi the Fig. #i is an ele- 'vetion of the 'vertical sew on the machine. Fi 5 is :i sectional elevation of one of' the cu ters of seid sew. Fig. G is e plan View of the saine. Fig. 7 is e. sectional elevation through n. portion ci said seu' and its driving shaft. Fig. S is e. section et right :ingles to vseici sew, shoving the width of cut matie thereby. Fig. 9 is e sectional side elevation of the rear propelling jack, the clamping jack, and rear axle. Fig. l() is o. sectional end elevation on theline l-fl of Fig. 9. Fig. ll is n sectional ele vtime through the entry showing the out mede by the machine. Fig. l2 is n Side elevation partly in section of e modified forni of head for the machine. Fig. i3 is n front. elei'f'ntion of the suine; and, lfig. l-l is a. rear end elevution ci' the rent axle enti part et the clamping, zich. Fig. l5 is a (litigi-inn of the various pressure operated meehnnisn'ls :intl their pipe connections The machine consists oi n structural ,fi-inne l, at the forward end of which there mounted n "listing 2, haring the bearings and 4, containing the bushings Mounted in the bearing 3, is c. shnt't (i, having n iunge 7, to which is secured the top saw 8. llt the lower encl of the shaft (l there is secured n c objects ot our invention are bevel gear 9. Within the beez-inge is mount-1 ed n shaft 10, having e. tln'nge il, 'to which is secured the bottom sew i2. At. the upper end of the shaft l() there is secured e. bevel geel' i3. Between the bevel gears 9 and 13 is the hearing 14, containing the bushing; l5 end the shaft 16, upon which is mountecl the bevel gear 1 7, which meshes with the bevel gears 9 und i8. utsicle the bevel gear 17 on shaft 1G is supplied the ilzinge i8, to which is secured the vertical sew 19. tween the iiange 18 and` the bevel gear l?, the shaft 16 is supplied with e. number of cut-ters 2G inserted therein. These cutters 2O are preferably arranged in the form of one or `more helices running around the shaft for e puroose'which will be explained hereafter. 'I e shaft i6 extends buck through the bearing 2l andA `hns secured. to its rear end :i spur gear :22, meshing;r with the pinion 23 on :i shaft Qf-l supported. in the bearings 25 and 2G. `leeu'recl to the rear cnil ci' shaft Q4 is n spur gear 27, which meshes with the armature pinion QS of the motor A shaft is extended rearwardly from the motor to n bearing 3l. This shaft has loosely mounted upon it the bevel pinion 32, which nny be connected :it will to the sli-.ift 30 by 'the clutch the bevel gezir 33 mounted upon n shaft 34, upon the ends of which are mounted the sprockets 35. These sprockets ectufite the chains 3G, which extend beck Isind pass over sprockets 37 which are secured to the rear' truck Wheels 38. Between motor 29 and .clutch 33 there are mountedv on the shaftil() e pair of eccentrics 39,'which operate the pistons of :in nir coinpressor Ai() secured to 'ie freine l. The rear axle fll is preternhly meile ot' enst metal having' the journals 42 to receive the truck Wheels 38. The :ixle 4l hns e hole through the center to receive the lower end of the jack cylinder 43 and e. flange 44 on the jack cylinder t3 beers upon lugs 45 on the axle 4l. The incl( eylin der 43 is :L fluid pressure cylinder of :my suitable construction having' zin upper pl un ,ger 45 with ufpointecl end 4.6 unil n lower plunger #i7 with c. pointed end 4S. Upon the application of fluid pressure the plungers 45 und 47 nieve out of the jack cylinder 48 21ml the points L.LG und fit1 are ei'nbeijldcil respectively in the roof and floor of the inine. Upon release oi' the fluid pressure,

he bevel pinion 32 ineshes with the plungers 45 and 47 move dowii and up' vrespecti'vel so' as to disengage the points 46and 48 rom the coal. We have not illus- .trated or described the construction of this `)ack in detail as it may be o'f numerous forms. A construction suitable for this puri pose is shown in a copending application ourselves' and Herbert K. Knopf led b her 21st, ,1908, bearing Serial No.

Novem The jack cylinder 43 is supplied with the lugs 49, to whichvare bolted one end of the channels 50 by bolts 51. The rear lower surfaces of these channels 50-bear on flange 44, which in turn rests on lugs on the axle 41. The channels are combined with' plates 52 to form a box-shaped section or slide, which may be designated as a whole by the numeral 53. This slideA 53 is adapted to move longitudinally of the machine within another box formed of the channels 5ft-and the plates 55, whichare secured lto the cross channels 56 by angles 57, these cross channels being in turn secured to the frame 1 ofthemachine. Within the slide 53 is secured the fluid pressure cylinder 58, having the piston 59, cylinder head 60, piston rod 61, and the stuing box 62. The

forward end of the iston rod 61 is flanged as at 62, and bolte to a cross beam 63 by bolts 64. The cross beam 63. is secured'to the frame 1. of the machine. It will be ob- .vious that When'fluid pressure is admitted to the cylinder 58 between the piston 59 and cylinder head 60, as by the opening 65, the slide 53, the clamping jack 43, the rear axle 41, and truck.- wheels 38 will be shoved bodily away from the frame of the machine,

1, and that if the clamping jack 43 is also under fluid pressure at the same time so that it resists the thrust of the cylinder 58, lthen the whole machine, except the clamping ack and connectin parts, will be moved forward. The.' drive c ains 36 are adapted to propel the machine from place to place in the mine and are to be taken olf when the machine is fed against the coal by the action of the cylinder 58.

At. the front end of the machine, adjacent to the main casting 2, there are placed four channels 66, secured to and lforming a lweight to an axle-housing 74, having thebearings 75. Within these bearings is mounted the axle 76, to .the outer ends of which are lsecuredthe front truck wheels 77, and a boss 78 `is formed on the axlehousing 74 to' receive the lower end of the pin 71, which is firmly secured thereto by asmaller pin 79. It is evident from the above construction that the admission of fluid pressure to either of the cylinders 67 will cause the plunger 68 to actuate the pinion 70, and cause the pin 71 to twist the axle-housing 74 and truck wheels 77 in a circle centeredon the pin 71. The construction of the cylinder 67 is so arranged that whenA the plunger 68 is at one end of its stroke, the axle 76 stands transversely to the machine; and when the plunger 68 is at the other end of its stroke, the axle stands 80, which are pivoted to the frame 1 at 81.

These jacks 80 may be of any desired construction and similar to the jack 43. At the center of the machine, we provide a reservoir 82 for the compressed air sup` plied by air pump 40, from which reservoir the air may be led to jacks 43 and .80 by suitable flexible pipe connections, which we have not shown in detail.' Vertical saw 19 is adapted to be forced sidewise into the coal, and then traversed en'dwise through th'e coal, so that it is supplied with a double set of cutters to permit of this action. The saw consists of a blade 88, secured by the rivets 84 to the flange 85 on the shaft 16. A series of radial slotsA 86, 87, and 88 are formed in the blade 19. 'The slots 86 occupy the outer third of the radius of the saw. The slots 87 occupy the middle third of the radius and the slots 88 the inner third of the radius. The slots 86, 87, and 88 are at approximately equal angles to each other as shown. The 'shape of the slots is shown in section in Fig. 5, which also shows the cutters 89, which have the cutting points 90. At the outer end of slots 86, a set screw 91 is provided to lock the outer cutter in position. The cutters in slots 87 and 88 are introduced through the holes 92, which are plugged with a piece of wood after the introduction of the cuttersf The saw blade '83 is provided with holes 93 to facilitate the egress of thc cuttings through the slot 94 which is cut in the coal by the saw 19.

Around the circumference of theI blade 83 there are formed a serios of slots'fl, containing' the cutters 96, which are held in place by the wedges 97. are preferably formed on the right hand, left hand, and center' as shown at 96, 96, and 96C. The height of the cutting point Secured to the forward end of the These cutters 96 l mettete 90 of cutter B9 measured ifi-om the tace or the sew blsde 83 is less than the height of the cutting points on cutters 96, measured frein the saine face, so that when the saw isV cutting edgewise, the cutters 89 are not in action. in Figs.. 12 and 13, We heveshown a modified construction, consisting of two vertical saws and two horizontal saws instead of two horizontal saws and one vertical saw as shown in lig, 3. The object of this modification is to lessen the amount of slack which is made when the vertical saws are forced sidewise into the coal in order to begin their cut. When this modification is.

Y' secured to the shaft 110, which is supported in the bearings lll'and 112. Mounted on the shaft 110 is the spur gear 113 meshing with the spur gears 1111 on the shafts 100. lt is obvious that power being applied to the shaft 110,l same Will be transmitted to the spur gears 113, and 114 of the vertical saws 102 and through the bevel gears 109 and 108 of thehorizontal saws 106.

The operation of our improved machine `is as follows z-The mschine is Inadeto propeliitself to the desired location in the mine by means of the drive chains 30. Upon arriving et the Working place, the front end of the machine is placed close to the side of the entry er room with the vertical saw close up against the coal. The clamping ja l; 13 is then put under the influence of duid pressure so as to rigidly 'fasten the rear end oi the machine to the roof and' licor of the ruine. Fluid pressure is then edinitted to the cylinder 58, which by the action of the connecting parts causes the front end of the machine to travel into the coal, the top und bottom saws 8 end 12 cutting slots at the top and bottoni of the coel seam, and the vertical saw 19 acting like an end milling cutter, grinding up the coal into slack .fis

the suiv 'l0 is further advanced into the coal,`

this slaclr falls through the holes 93 in the saw blade 83 to the inside of the saw. Alter the saw 10 has been advanced into the coal.

a distance equal to the stroke or the cylinder 5Fl, or any other convement distance, the

cylinder lis relieved from the action ot the iluid prcssureyxnd one of the jacks 80 is swung; agfainst 'the' Wall s0 as to be in position to push, the front end of the machine sidevvise. The application of fluid pressure to this jeclr then swings the-iront end of the machine across the room or entry, themachiue being pivoted rigidly by the jack 43, and the front truck Wheels 77 being in the position shown in Fig. 3. This action results in the cutting of parallel horizontal slots across :the face of the entry by the top and bottom saws 8 and 12, and a curved vertical slot by the vertical saw 19; at the seme time the cutters 20 on shaft 16 dig out the coal in advance ci the shaft 16 so as to make clearance for the saine. The result of thus swinging the machine across the entry is shown .in Fig. 11, in which 1.15 is the hole bored by the vertical saw 19'; 116 is the slot cut by the cutters 20. on the shaft 16, and 117 is the vertical slot eut'by the saw 19 when swung across the face of the entry.

The slots cut by saws 8 and 12 are shown yet 118 and 119. It is obvious that the coal having been cut from its originalbed on three sides may be easily dislodged by Wedging, or With a pick, or by any suitable machinery, and that an entry or room of in definite length can be mined by the above process entirely Without the use of explosives. lt will be further obvious that ab though a considerable portion of the coal is ground up into slack by the action of the l saw 19, yet the remaining coal is in such a condition that it vmay be readily removed in large lumps. it is also obvious that many other arrangements and parts might be substituted by a skilled designer for those shown by us, Without departing from the spirit of our invention, which is covered by the' followingu claimstl. In a mining machine, s. circular saw mounted in a horizontal shaft, seid shaft being movable forward and sidewise, teeth on one side of the saw to cut when the saw is fed forward in a direction arallel to the shaft, teeth on the edge of t e saw to cut When-the saw is fed sidevvise at right angles to the shaift,'means for drivin said saw,

means for feeding it forward an means for feeding it sidewise.

2. ln a mining machine, a circular saw mounted on a horizontal shaft, said shaft being movable forwerdsnd sidewise, teeth on one side and the edge of the sew, teeth on. the shaft adapted to cut clearance therefor, means for driving; the sheft, means for eeding it toi-Ward, end ineens for feeding it sidewise.

3. In a mining machine, a vertically arsaw on each of4 the above elements into the coal in-'a direction parallel 'to the horizontal shaft and means for moving the same laterally therein.

5. In a mining machin'efa frame pivoted at its rear end, a vertical saw and two horizontal Vsaws mounted onfthe -front end of 4said frame, means for advancing said saws l into the coal, means for driving said saws,

and means for swinging-said frame about said pivot.

6. Ina mining machine, a iframe, a vertical and two .horizontal saws mounted thereon, said saws having theirl axes in a common f vertical plane, and a fluid pressure cylinder y and in line with saidl first vertical shaft, a

horizontal saw thereon, means for driving said horizontal shaftand bevel gears connecting said horizontal and vertical shafts.

9. In a mining machine, a frame pivoted to its rear end, a plurality of saws carried.

thereby to cut the cm1, a clamping jack adjumbly connected to vSaid frm, means for clamping said jack, 4means for .pushing said frame forward against the resistance ofsaid jack when clamped,fmeans for drawingsaid Jack toward the machine when not clamped,

andrmeans for swinging 'said'frame about its pivot.

10. In a mining means for drivin "said saws, a lpneumatic cylinder for feedlngthe machine forward,

and a pneumatic cylinder for swinging the frame' about its pivot.

11. In a mining machine, a frame, :a horil zontal shaft, a vertical saw and a bevel driv ing gear thereon, two vertical shaftsxeach having a horizontal saw thereon, and amachine, pivoted frame; a motor :mounted thereon, an vair pum driven thereby, saws for cutting the -coa ,-1

driven bevel gear on each vertical shaft meshing with said bev-el driving gear, means l for driving said horizontal shaft and means formoving said frame to feed said saws to make their cuts.

l2. In a mining machine, a frame, l guide .secured thereto, a slide working in, said guide and supporting the rear end of the machine, an axle secured to -said slide, f

wheels on said axle, a motor and connections from said motor to said wheels to drive the A latter. 4

- HARRY A. KUHN.

WALTER W. MACFARREN.

Witnesses:

Cms. Lox'rnRMAN, EMM. Jonson.

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