US1644943A - Mining machine - Google Patents

Description

Oct. l 11'1927 R.c.ossoon MINING MAGHINE Original Filed March 15. 1919 '4 Sheets-Shegt 1 M. Q la. .y DE b RRQ mw Q. SMH@ j mau/ n 3m o Y@ s* .HWDN f I w .\\\\\\\\M\\\\\\\\\\\\\ f w ,wlw nm. N dmay. w w 1% ma A \\l.|. :E mm ,1 w www mk.. mn? 1%.... 1 im... m m L r, \`o n n 4 n: E .a HmrHf/cm www Oct- 11 f 1927' n. c. oscoon MINING MACHINE Original Filed March 15. 1919 4 Sheets-Sheet 2 Oct. 11 1927.

R. c. osGooD MINING MACHINE Original Filed March l5, 1919 4 Sheets-Sheet 3 oct. "11, 1927. 1,644,943

R. C. OSGOOD MINING MACHINE original Filed Maron 15. 1919 4 sheets-sheet 4 Har-.2'

5J Inv/@iwi r Rab ric. ".f a d. y. by

Patented Oct. 11,1927.

UNITED STATES PATENT OFFICE. :t

ROBERT G. 0830017, I CLABEIOHT, NEW HAMPSHIRE, LSSIGNOR T0 IA- OBINEBY 00mm, A CORPORATION 0F MASSACHUSETTS.

m6 IACHDIE.

Application nled Inch 16, 191B, Serial No. 282,851. Renewed September lll, Il.

My invention relates to mining machines. It has for its ab'ect to rovide an improved mining mac ine w ich, while not limited thereto, is especially adapted to use l in entry driving. A further object of my invention is to provide an improved mining machine wherein the' material to be mined is progressively cut in an impro manner 1n advance of the machine, preferably through the use of an improved cutter chain carriing head, the face of the entry in entry wor for example, being rapidly cut over its entire surface as the machine moves forward. A still further object of my invention is to 1B provide an improved cutting mechanism and improved cooperating driving and feeding mechanism therefor, which is of a simple, rugged, yet light .construction and adapted to rapid work -and to be handled withmcreased facility during the mining operation. These and other objects and advantages of my improved construction will, however, hereinafter more fully appear.

In, the accompanying drawings I have shown for purposes of illustration two embodiments which my invention may assume in iractice.

Fig. 1 is a side elevation showing one embodiment of my invention in use in an entry,

parts being broken away.

Fig. 2 is a plan view of the machine. Fig. 3 is an end elevation of the machine when disposed as shown in Fig. 1..

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 1. f

Fig. 5 is a longitudinal sectional view taken on line 5-5 of Fig. 1.

Fig. 6 is a diagrammatic view showing the means for moving the truck forward.

Fig. 7 is a diagrammatic view showing one means of enlarging the entry formed by this form of my invention.

Fig. 8 is a agmentar lan view, partially in section, of a in i ed form of my invention.

Fig. 9 is an end elevation of the construction shown in Fig. 8.

Iii this illustrative construction it will be observed that I have shown a minin machine frame 41 slidabl mounted longitudinally on a horizonte -ly disposed suport, herein in the form of a flanged guiding means 2 formed on longitudinally dis- 5 posed opstanding I-beam members 3, which are in turn supported upon wheels 4 and connected in such a manner as to form a truck, the ends of which herein extend beyondhi whelilzls. As shown, the frame 1 is provi e wit cooperating ide ila 5 and 6 adapted to maintain ige framldglsin the desired relation to its sup Orts 3 durin the several operations hereina. r describe `Carried within the machine frame 1, herein housed within its rear end, is a usual ino-- tor 7 adapted to be controlled by the usual controller mechanism 8. The armature shaft 9 of this motor is longitudinally dis and carries on its front end a bevel pinion 10 which meshes constantly with a plurality of spaced bevel gears 11 and 12 loosely mounted on a transverse shaft 13 suitably journaled on the frame 1, as in supports 14, the gears 11 and 12 being adapted to be o eratively connected to the shaft upon suita le movement of a clutch member 15 splined to the shaft at 16 and adapted to be operated by suitable clutch shippin mechanism including a clutch shipper 1 a rod 18, and a controllingmember 19 carried on the to of the frame 1. Thus, it will be observe that it is possible to rotate the transverse shaft 13 in either direction by simply adJusting the clutch member 15 to connect the desired bevel gears `11, 12 to thesbaft.

Operatively connected to the motor, herein through the shaft 13 is my improved cut-v ter head rotating mec As shown, this mechanism includes a worm 20 on ons end of the shaft'l' and ymeshing with a worm gear 21 in turn fixed near the rear end of a longitudinally disposed shaft 22 journaled in bearings 23 at'one'side of the frame 1. As shown, this; shaft 22 has xed to its front end a `pinion 24 meshing with a lar r gear 25 disposed coaxially with tbe mor and in turn fixed to a coaxially uw sleeve 2 6 rotatable inl suitable spaced ings2'f formed in a rigid extension or sleeve 28 on the front of the frame 1, and herein cast integral therewith. As shown, the front end of the sleeve 28 is fixed to a transversely disposed, substantially tlat member 29, herein bifurcated at its front and at and provided with lateral extensions 81 havin rigidly attached thereto, as bolts 82, a ransversely disposed flat cutter ar B3 disposed edgewise to the face and a rotary cutter chain 34 movable throu a transverse chamber 84' in the member 29 n.

and ha a ble with the face w en on the front ha f of the bar. Thus, it will be observed that when the shaft 13 is suitably connected I through movement of the controlling member 19, the head 29 and the cutter bar 33 may be rotated by the motor 7 in either direetion.

operatively connected to tbeinotor, herein also through the shaft 13, is improved mechanism for driving the cutter chain 34 while the cutter bar 33 is so rotated. As shown, a inon 86 carried on the armature shaft 9, ind the bevel pinion 10, meshes with a larger r 37 carried on the rear end of a lon tu ally disposed shaft 38 journaled in rings 39 on the frame l and oppositely located with respect to the shaft 22. This ar 37 is connectible with the shaft 38 gli h clutch mechanism including a movable clutch member 40 splined to the shaft 38 at 41 and operable through a clutch shipr 42, an upstanding rod 43, and a controlliiig member 44 carried on the top of the easing 1. As shown. the shaft 38 also cai-- ries on its front end a pinion 45 meshing with a lar r gear 46, which is in turn fixed -to the en of a shaft 47 disposed coaxiaily with the sleeve 26 and iournaled therein in suitable bearings 4B, herein of the roller type, located in the opposite ends thereof. The front end of this shaft 46 in turn has lixed thereto a bevel gear 49 disposed in a chamber 50 in the member 29 and meshing with a larger bevel gear 50' fixed to e transverse shaft 51, which is in turn journaled in suitable bearings 52, herein of the roller type, carried on the member 29. Carried on one end of the shaft 51 is a sprocket 53 having a cooperating chain 64, which in turn extends around a sprocket 55 on one end of another transverse shaft 56 iournaled in the extremity of the member 29 and midway between the ends of the bar 3B. As shown. the opposite end of this shaft 56 is also provided with e sprocket 57 cari-ving a chain 58 which in turn cooperates wit a sprocket 59 connected through a shaft 60 with the chain driving sprocket 61 of the cutter chain 34. Thus it will be observed that through control of the controlling member 44 the cutter chain may be operated during the rotation of the cutter bar, or thrown out of operation, as desired. o

Coo erating with the mechanism described, and also preferably operatively connected to the motor, is im roved mechanism for producing a relative ceding movement between the frame l and the truck during cutting, and also during the hereinafter described feeding movement. This mechanism, as shown, includes a gear 62, constantly meshing with a gear 63 Fixed to and rotatable with the bevel gear ll. .ls shown. this gear 62 is freely rotatable on a transverse odset or sta red bits 35 enshaft 64 disposed in front of the shaft 13 and journaled in suitable bearin 65 on the frame 1, and is connectible wit i that shaft through suitable clutch mechanism including a clutch member 66 splined at 67 to the shaft, a clutch shipper 68, an u standin rod 69, and a controlling member il) carrie on the topcf the frame l. This clutch mechanism is also ada ted to connect. the shaft to a freely rotatab o worm r 71 carried on the shaft and meshin with a worm 72 fixed to the shaft 22. t will also be noted that this -sha-ft 64 carries a gear 73 constantly meshing with a pinion 'f4 on a lower transverse s aft 75 ioumaled in suitable bearings 76 beneath the frame 1 and disposed within the truck girders 3. This shaft 75 in turn is also provided with pinions 77 on its opposite ends mcs with longitudinally disposed racks 78 lix to the upper inslde flanges of the girders 3. Thus it will be observed that through manipulation of the clutch controlling member 70 to connect either the worm gear 71 or the r 62 to the shaft, and frame 1 may be feds owly forward on the truck iis the cutter bar is rotated or fed more rapidly backward thereon when the cutter bur is not rotating. Also it will be noted that the direction of movement ma be reversed or the movement interrupte through manipulation of the clutch controlling member 19.

In the operation of my.iinproved construction, the machine is preferably carried into the place to be cut, on its truck, until its cutter bar is closely adjacent the face. 'I 'hen the truck is suitably xed, herein rela.- tively to the roof by means of one or more adjustable jacks rT9 engaging tlie roof and one or more jack su ports 80 referably formed on the o posi e ends and' sides of the girders 3. A er this has been done. tlie n iotor is started, and tliroii h the manipulation of the clutch contro ling member 19 and the clutch controlling member 44, the cutter bar and cutter chain are started ni operation. Then, through the control of the c utcli controlling member 70, the frame l is fed forward relative to the face so that the cutter bits 35 on the front hlilf of the cutter chain 34 may continuously engage und cut the face as shown in Fig. l, as the bar is rotilted and fed forward. As soon as the niachine has reached a predetermined forward position relative to the truck, the latter is then fed forward relative to the machine, herein also through the use of my improved feeding mechanism. This is preferably done while the cuttin are beingI loaded out, the machine then being shut down. B v then removing the jacks 79 and placing the same between tho roof and other jack supports 8l formed on the op site sides and preferably :it the reni' und o the machine frame l, the lutter may be locked in positionso that when,

lll

omms through the control of the clutch controlling the that set forth above.

member 70, the pinions 77 are rotated, truck will be caused-to feed forward relative to the machine on the new section of track. Obviously, as soon as the truck has been thus advanced, the jacks 79 may be again re laced in their cuttii positions and the cu ioperiition resuin In t e use of a machine constructed in accordaneewth my imgirovement, lt will be observed that a cnt o cylindrical :cross aection is produced, tbe diameter of the eut being the same asthe length of the bar. Un-

der many conditions this cut may satisfactorily serva as an entry. However, if it is desired to rovide a wider entry, the saine may be readily widened by the use of n li'crf cutting machine 82 of any desired tpm, preferably an nndercutter, as shown in ig.

the bar or cutter of the machine preferably being inserted subatcntially on the level with the bottom of the ent so that one or both side walls thereof may undercut and shot to widen the entry as desired.

In Figs. 8 and 9 it will be noted, moreover, that I have illustrated a modified form of my invention adapted initial] to cut a wider entifyl', herein consisting of n ual mechanism of t e general type described above adapted to cut a plurality ofoverlap ing bores. Inasinuch as the mechanism slliown in Figs. l to 6 has been specillcally described Aand sul:- stantially the same mechanism is used in this, embodiment of my invention, a second detail description of that mechanism seems unnecessar In this construction, however, it will e observed that a plurality of rotating members 29 are provided disposed at right angles to each otherl and that operatively connected in each of these members is a cntter bar 33 carrying a cutter chain 34, the construction being so arranged. that thc paths of the bars Aoverlii one oi'. the bars always being at right ang es to the other and preferably, as herein, extending close to thc axis thereof. This dual mechanism is driven from the motor and controlled substantially as hereinabove described, save for the fact that the shaft 38 carries a r 83 on its front end meshing with an id er r 84 and a driving ear 85, which rotates t e rotating shaft 47 o the lower head 29 shown in Fig. 8, while the idler alilgear B4 drives a gear B6 which rotates the aft 47 ofthe upper head shown in that ligure. It will also be observed thnt the shaft 22 carries a bevel pinion 8T on its front end which in turn meshes with a bevel r 89 carried on a transverse sliat 90 suita ly journaled on the frame and carrying on its opposite ends worms 91 meshing with worm gears 92 driving the two sleeves 26. Obviously, the operation of this construction will be substantially the same as that described above, save as above indicated, and the several elements may be controlled through the saine controlling mechanism as In the use of in improved construction, it will be observed that a cutting mechanism is produced in which the cutter bit act upon the face as the bar is rotated to cut the coal from the face through succeivo engagementof the bitii` with dierent portions of the face as the bars rotate and the cutter chain moves around thelist. It will also be observed that due to my improved construction utilizinga standard cutter chain a rugged cutting mechanism` is provided whic as emonstrated in the successful use of room and pillar and longwall machines, has heretofore proved :un l suicient to out even the hardest coal. rough the provision of my improved mechanism for mov- :ieif the cutting mechanism longitudinally ative to the work, it will also be observed that means are provided whereby the cutling mechanism may be conveniently moved to and from cutting position and fed forward continuously and slowly during the cuttin operation. Also, it will he noted that t rough the use of this mechanism and my improved controlli mechanism, the cutting mechanism maynge withdrawn and returned to the face with the bar at any desired angfe, as when it is desired to remove an obstruction such as u sulphur ball or the like which it is im ossible otherwise to dislodge. Through t e revision of my imrovcd dual head mac e, attention is also irected to the fact that I have produced a mechanism which is enabled initiaIl to pr0- duce a wider cut which may be ofyespeciul value in wider entries, and t e cutter bits of which also act oppositel upon the face in such a manner as to fac' 'tate the cutting of the saine and the removal of obstructions therefrom.

Obviously, in the use of my im rovement any well known means may be uti ized to remove the cuttings as the machine advances. As this means per se, however, does not form a part of m present invention I have not illustrated t e same more call herein thun to show u conve or 93 at one side of the track. Also, it will evident that although in the use of this type of machine in entry work it is ordinarily not desirable to move thc saine to another place `until an entry has been driven to its outer limit, perhaps for a mile or more, this may be readily accomplished in other work or at that time by connecting any well known motor driven truck drivin mechanism, as for instancea rcinovab e chain und sprocket connection 94,

between the motor and the truck wheels 4 so' that when the bar or bars have been removed and the machine locked, as by a suitable lufg and pin connection 95, the mechanism pre ernbly with the cutter bar or bars loaded mi top of the saine, may be transported under lll) on an axis extending its own power to a new It will of course also be understood t at under certain conditions the machine may be moved without irst removin the bar or bars, the head then bei rotat into auch a position as to dispose e bar or bars above the level ot the These and other advant s of my improvement will, however, `be c early ap arent to those aln'lled in the art.

iile I have in this a plication ically described two einbodim' ents whi my invention may assume in practice, it is to be understood that the same is not limitedto use in connection with these illustrative embodiments but that the invention may be further modified and embodied in various other forms without dcpartiig from its spirit or the scope of the appen ed claims.

What I claim as new and desire to secure by' Letters Patent is:

1. In a mining machine, a cutter bar supported on an axis intersecting it at a point substantiallv midway between its ends, and cutti mechanism movable alongl said bar.

2. l a mining machine, a ro cutter liar supported at a point subetan ly inidway between its ends, and cutting mechan'ism movable along said bar.

tl.- In a mining machine, a lane cutter bar sup orted on an axis paralle toa line paralici) to the plane of the bar and intersecting its edge at a point between its ends, and cutting mechanism movable along said bar.

4. In a. mining machine, a rotary cutter bar supported from the direction of its edge and at a point between its ends whereby on rotation of said bar its eigestrace spaced surfaces, and cutting m anism movable alo said ba. mmm-n am a mining e, a. r ca element journaled midway between its ends longitudinally of the machine, and cutting means movable from end to end thereo (i. In a minin machine, a cutter carrying member movab e during cutting in a plane parallel to the face being cut, a cutter chain movable transversely of said member, means for driving said cutter carrying element, and means operatively connected thereto for driving said chain.

7. In a mining machine, a cutter carrying element movable during cutting in a plane parallel to the face being cut, a cutter chain movable transversely of said element, and means for simultaneously operating said element and driving said c ain.

S. In a mining machine, a cutter carrying member movable in a plane parallel to the face boing cut, a cutter chain movable transversely of said member, and means for simultaneously operating said member, driving said chain, and feeding said member toward the face.

9. In a mining machine, a cutter carrying neonata clement movable during cutting in a plane parallel to the face bein cut, a cutter chain movable transversely o said element, propelling mechanism therefor, a support, and means for feeding each of said elements relative to the other. 10. In a mininmachne, a cutter carrying element mova le in a plane parallel to the face being cut, a cutter chain movable transversely of said element, propelling mechanism therefor, a support, and means for holding said propelling mechanism stationary and feeding said support relative thereto.

11. In n mining machine, cuttin means including a cutter carrying element disposed transveiscly of the face, a cutter chain movable transversely thereof, and means for movin said element in a transverse lane pai'alle to the face being cut including a member fixed thereto at a point between the ends of said element.

12. In a mining machine, cutting means includin a cutter bar d transversely of the ace, a cutter chain movable transversely thereof, and means for moving said bar in a transverseiplane parallel to the :face

being-cut including a member havi a biturcated portion lixed thereto at a. point be tween the ends of said element.

.13. In en entry driver, a rotary cutter bar disposable transversely of an entry, a cutter chain movable transversely thereof, and means for moving said bar in a transverse plane parallel to the face during cutting of the latter including a member having a` bifurcnted portion fixed to said bar and presenting a passageway for said chain. 14. I [n a mining machine, cuttin means including a cutter carrying element isposed transversely of the face` a cutter chain movable transversely thereof, means for moving said element in a plane arallel to a plane face durin cutting of t e latter includin a member xed to said element at a. poin between the ends of said element, and means for reversing the movement of said element. l5. In a mining machine` cutting means including a cutter carrying element disposed transversely of the face, a cutter chain movable transversely thereof, means for moving said element in a plane parallel to a plane face during cutting of the latter, including a member fixed to said element at a point between the ends of said element, a. su port, and means for movsaid member engitudinally thereof at diferent speeds.

18. In a mining machine, cutting means including a cutter carrying element disposed transversely of the face, a. cutter chain movable transversely thereof, means for moving said element transversely of the face being cut in a plane parallel to the latter including a member fixed to said element at a point between the ends of said element, a supnected thereto, a transverse horizontal shaft, a worm secured to said shaft and meshing with said worm and a. reversing mechanism between said ahaftland said motor, said reversing mechanism including a transverse shaft operatively connected to said' transverse shaft, rever gears vcoaxial therewith, and means forternatively connecting said gears to said shaft. y

30. In a mining machine, awheeled truck frame having longitudinal A ideways thereon, a machine f rame slida ly mounted on said truck frame, a motor carried by said machine frame, cutting mechanism driven by said motor includin a cutter carr ing head rotatably mounte on said mac 'ne frame for rotation upon a substantially horizontal axis and carrying and moving during cutting, in a plane parallel to the working 4face, a cutter har, andself-eontained mechanism driven hy'said motor for mov' said machine frame relative to said truck Ame.

31. In a mining machinea wheeled truck frame having longitudinal` ideways thereon, a machine frame slida 1y mounted on said truck frame, a. motor carried by said machine frame, cutting mechanism driven by said motor includiig n. cutter cari' ing head rotatably moun on aald .mac in e frame for rotation upon a auhstantiall horizontal axis and carrying and moving uring cutting, in a lane parallel to the working face, a cutter ar, and self-contained mechamsm driven by said motor for moving said machine frame relative to said truck frame at different speeds in opposite directions.

32. In a nuning machine, a wheeled truck frame having longitudinally extending guideways, a machine body slidably mounted in said gudways, a. motor in said body n cutter carry' head rotatably mounted on the forward end of said body for rotation upon a substantially horizontal axis; and mechanisms driven by said motor for rotatin said head, for actuating the cutters on sai head, for movin the body relative toA the truck frame, an for driving the wheels of said truck.

33. In a mining machine, a wheeled truck frame having longitudinally extending guideways, a machine body slidably mounted in said guidcways, a motor in said body, a cutter carrying head rotatably mounted on the forward end of said body for rotation upon a substantial] horizontal axis, and mechanisms driven y said motor for rotating said head in opposite directions, for movin the body relative to the truck frame at ierent speeds in o pos'te directions1 and for driving the w eels of said truck.

In testimony whereof I ailix my si ature.

ROBERT C. OSG OD.

nected thereto, a transverse horizontal shaft, a worm secured to said shaft and meshing with said worm ear, and a reversing mechanism between said shaft and said motor, said reversing mechanism including a transverse shaft operatively connected to said transverse shaft, reversi gears coaxial therewith, and means forliternatively connecting said gears to said shaft.

30. In a mining machine, a wheeled truck frame having longitudinal uideways thereon, a machine frame Slida 1y mounted on said truck frame, a motor carried by said machine frame, cutting mechanism driven by said motor includin a cutter carr ing head rotatably mounte on said mac iine frame for rotation upon a substantially horizontal axis and carrying and moving during cutting, in a plane parallel to the working face, a cutter bar, and self-contained mechanism driven by said motor for movin said machine frame relative to said truck rame.

31. In a mining machine, a wheeled truck frame having longitudinal guideways thereon, a machine frame slidably mounted on said truck frame, a motor carried by said machine frame, cutting mechanism driven by said motor ineludin a. cutter carr 'ing head rotatably mounte on Asaid mac ine frame for rotation upon a substantially hori- :rental axis and carrying and moving during BESTAVMLABLE CGPY cutting, in a plane parallel to the Working face, a cutter bar, and self-contained mechanism driven by said motor for moving said machine frame relative to said truck frame at diii'erent speeds in opposite directions.

32. In a mining machine, a wheeled truck frame having Ilongitudinally extending guideways, a machine body slidably mounted in said guideways, a motor in said body, a cutter carrying head rotatably mounted on the forward end of said body for rotation upon a substantially horizontal axis, and mechanisms driven by said motor for rotating said head, for actuating the cutters on said head, for moving the body relative to the truck frame, and for driving the Wheels of said truck.

33. In a mining machine, a Wheeled truck frame having longitudinally extending gudeways, a machine body slidably mounted in said guideways, a motor in said body, a cutter carrying head rotatably mounted on the forward end of said body for rotation upon a Vsubstantially horizontal axis, and mechanisms driven by said motor for rotating said head in opposite directions, for moving the body relative to the truck frame at different speeds in opposite direc tions, and for driving the Wheels of said truck.

In testimony whereof I aiiix my signature.

ROBERT C. OSGOOD.

CERTIFICATE OF CORRECTION.

Patent No. l. 644, 943.

ROBERT C.

Granted October 11. 1927, to

OSGOOD.

lt is hereby certified that error appears in the printed specification of the above numbered patent requiring corecton as follows: Page 2, line 90, for

the werd "and" read "the"; page 3, line 70, for the word "bit" read "bits";

tions therein nd that the sind Letters Patent should be read with these correo Ether the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of January, A. D. 1928.

Seal.

M. I. Moore,

Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,644,943. Granted October ll. 1927, to

ROBERT C. OSGOOD.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 90. for

the wml "and" read |'the"; page 3, line 70, for the word "bit" read "bits"; and that the said Letters Patent should be rend with these corrections therein thor the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of January, A. D. 1928.

M. J. Moore, Seal. Acting Commissioner of Patents.

Images