US1612288A - Mining machine - Google Patents

Description

ec. Z8 i926- M. P. HOLMES MINING MACHINE Filed Sept. 26. 1921 Patented Dec. 28, 1926.

YUNTESD STATES PATENT GFFICE.

MORES P. HOLMES, OF CLAREMONT. NEW HAMSERE, ASSGN'OR 'O STJLIVAN MACHINERY CGMPA'NY, A CRPORATON GF MASSACHSETTS.

MINING MACHNE.

Application filed September 2G, 1921. Serial No. 503,345.

`My invention relalesto. mining machines.

tdhas for its object to provide improved feeding mechanism for such a machine, and more especially for a mining machine of the type utilizlng a plurality of flexible feeding members, my invention. contemplating an iniprov-ed arrangement of the windinggrmembers for the flexible feedingv means. A further object. of my invention is to provide an improved arrangement of take-up drum whereby the width of the machine may be de creased or the size of the drum increased as desired without in an-y way interfering with the free passage of cuttings through the machine. These and other advantages of my improved construction will, however, hereinafter more fully appear.

In the accompanying drawings I have shown for purposes of illustration one embodiment which my invention may assume in practice.

1n these dravi'ngs,- l Fig. 1 is a side elevation partially in section showing a machine equipped with one form of my improvement.

Fig. 2 is a plan view ofthe construction shown in Fig. 1, a portion of the casing be ing broken away to facilitate illustration.

In this illustrative construction I have shown a mining machine of the flexibly fed room and pillar type 4and of a usual con'- struction, including a mining machine casing 1 slidable on its bottom on the mine bottom and carrying a forwardly projecting cutter bar 2 on which acutter chain 3 carrying bits 4 is rotatable in a well ltnown manner, the cut-ter chain delivering` cuttings as usual through the rear end of the casing and being driven by suitable motor 5, herein horizontally and longitudinally extending and carried in the casing, through usual connections not shown. As in such a construction, the armature shaft 6 of the motor is connected te a main feed operating drum 7 rotatable on a transverse axis in rear of the front surface of the motor, which drum in turn carries a ii-eXible feeding member or cable 8 adapted to cooperate with a guide sheave 9 on the front end of the machine during transverse Cutting, the drum being driven from the motor through an internal gear 10 on the drum, a spur pinion 11 on one end of a transverse shaft 12', a worin gear 13' and friction-13 on the opposite end of the shaft 12, a worm 14 on the lower end of the vertical shaft 15, a bevel gear 16 on the upper end of the shaft 15 and a bevel pinion 17 on the end of the armature shaft. Here it will of course be understood that controlling means of any usual type may be provided for the friction 13, the same being omitted herefroin to simplify illustration.

In my improved construction, the cooperating feed operating or take-upy drum cooperating with the drum 7 and herein illustrated as a drum 18, is disposed in rear of the frame and at an acute angle to the hori-V zontal, the same being supported on the upper end of thev frame and rotating in a plane parallel to an inclined surface 19 thereon and about a studv 2O carried in a suitable support 21, herein below and in rear of the inclined surface 19. As shown, the drum 18 is also provided with an internal bevel gear 22 driven by a bevel pinion 23 on the rear end of a longitudinally extending shaft 2e, suitably journaled in the rear end of the frame and having connected to its front end one of the elements of a friction clutch 25, the other element of which is connected to a spur gear 26, so that when the clutch is connected by any suitable mechanism (not shown), the shaft 2a will be rotatedA by the gear Q6 to Wind in a cable 27 on the drum 18 while when the clutch is disconnected the drum may rotate freely as desired under the controlof the clutch. Operatively associated with this gear 26 and driving the same is also a spur pinion 28 carried on the rear end of a longitudinally disposed shaft 29 which in turn carries a bevel pinion 30 on its front end meshing with a bev-el pinion 31 on the upper end of the shaft 15. As a result of my improvement, it will be observed that it is made possible to utilize a take-up drum without in any way increasing the width or height of the machine or interfering with the free passage of cuttings from the cutter chain beneath the rear end of the machine, and that since the drum is carried at an acute angle to the horizontal at the rear end of the machine, itis also capable of being greatly increased in dia-meter to reduce cable breakage while still being retained within the limits of the frame and while still being disposed well above the path of the cuttings. Attention is also directed to the fact that with the drum so disposed, the exible feeding member thereon may be passed off from the under side of the lli) same at a point relatively close to the bottom of the machine and in such a. manner as to enable, if desired, a direct connection from the drum to the jack at the right hand rib, the necessity for providing intermediate turning sheaves or the like being thus eliminated.

lVhile I have in this application specifically described one embodiment which my invention may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms Without departing from its spirit or the scope of the appended claims.

l/Vhat I claim as neuv and desire to secure by Letters Patent is:

l. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof Whose plane is parallel to the plane of the machine bottom, and flexible feeding means therefor including a feed member carried on the opposite end of said machine from said bar and rotatable in a plane at an acute angle to the plane of said cutter bar.

2. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof Whose plane is parallel to the plane of the machine bottom, and flexible feeding means therefor including a feed member disposed on the opposite end of said machine from said bar at an acute angle to the plane of said cutter bar with its lower extremity disposed a substantial distance above the machine bottom.

3. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof Whose plane is parallel to the plane of the machine bottom, and flexible feeding means therefor including a feed member carried on the opposite end of said frame from said bar within the lateral limits thereof and rotatable in a plane at an acute angle to the plane of said cutter bar.

Ll. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof Whose plane is parallel to the plane of the machine bottom, and flexible feeding means therefor including a feed member carried on the opposite end of said frame from said bar Within the. vertical limits of said frame and rotatable in a plane atan acute angle to the plane of said cutter bar.

5. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof whose plane is parallel to the plane of the machine bottom, and flexible feeding n'ieans therefor including a feed member carried on the opposite end of said frame from said bar Within the lateral and vertical limits of said frame and rotatable in a plane at an acute angle to the plane. of said cutter bar.

6. In combination, a mining machine slidable on the mine bottom during cutting and provided with a plane cutter bar at one end thereof whose plane is parallel to the plane of the machine bottom, and fiexible feeding means therefor including a feed member carried on the opposite end of said frame from said bar Within the lateral and vertical limits of said frame and rotatable in a plane at an acute angle to the plane of said cutter bar with its lower extremity disposed a substantial distance above the` machine bottom.

7. In combination, a mining machine including cutting' mechanism, flexible feeding means therefor including a flexible feeding' member disposable on the advancing side of the machine and a cooperating feed operating member therefor, and cooperating flexible feeding' means including a flexible feeding member disposable on the receding side of the machine and a cooperating feed member carried on the rear end of the machine at an acute angle to the plane of said cutting mechanism.

8. In a mining machine, a machine frame, flexible feeding mechanism including a feed member carried on the rear end thereof at an acute angle to the bottom of the machine, a motor on said frame, and driving connections betvveen said motor and said feed inember including a bevel gear disposed on the axis of said feed member and a bevel pinion meshing with said bevel gear.

9. In a mining machine, 'a machine frame, flexible feeding mechanism including a feed member carried on the rear end thereof at an acute angle to the bottom of the machine, a motor on said frame, and driving connections between said motor and said feed menber including a longitudinally disposed shaft operatively connected to said feed member and frictional controlling mechanism controlling the connection of said shaft to said motor.

l0. A mining machine comprising a frame having a cut-ter bar extending longitudinally thereof, and transverse flexible feeding means for said frame acting' on the opposite ends thereof including a retarding member carried on one end of said frame and disposed at an acute angle to the plane of said cutter bar.

1l. A mining machine comprising a frame having a cutter bar extending longitudinally thereof, and transverse flexible feeding means for said frame acting on the opposite ends thereof including a retarding member carried on the opposite end of said frame from said bar and disposed at an acute angle to the plane of said cutter bar.

l2. A mining machine comprising a malou 'il en.

chine frame having a plane cutter bar extending longitudinally thereof in planes parallel to the bottom of said machine frame,

flexible feeding means for said frame in-Y cluding flexible advance and receding po-rtions acting on the opposite ends of said frame, and a winding member acting on one of said portions carried on one end of said frame in a plane at an acute angle to the plane of saidcntter bar.

13. A mining machine comprising a machine frame having a plane cutter bar extending longitudinally thereof in planes parallel to the bottom of said machine frame, flexible feeding means for said frame including flexible advance and receding portions acting on the opposite ends of said frame, and a winding memberracting on one of said portions carried on the opposite end of said frame from said bar in a plane at an acute angle to the plane of said cutter bar.

14. A mining machine comprising a frame having a cutter bar extending longitudinally thereof, fiexible feeding means including fiexible advance and receding portions acting on the opposite ends of said frame, a feed operating member cooperating with said advance portion, and a take-up member cooperating with said receding portion, said feed operating member being disposed on a transverse axis on the advancing side of the machine and said take-up member being disposed on the rear end of the machine in a plane forming an acute angle with the frame bottom.

15. A mining machine comprising a frame having a cutter bar extending longitudinally thereof and a horizontal longitudinally ex- Y tending motor thereon, and Yflexible feeding means including advance and receding flexible feeding portions acting onthe opposite ends of said frame, cooperating feed operating and take-up members disposed on the advancing side and the rear end of said frame respectively, one of which is rotatable on an axis lying in a longitudinally extending vertical plane, and operative connections between each of said members and the rear end of said motor.

16. A mining machine comprising a frame having a cutter bar extending longitudinally thereof and a horizontal longitudinally extending motor thereon, and flexible feeding means including advance and receding flexible feeding portions acting on the opposite ends of said frame, cooperating feed operating and take-up members disposed on the advancing side and the rear end of saidframe respectively, one of which isvrotatable on an axis lifing in a longitudinally extending vertical plane, and operative connections between each of said members and the rear end of said motor including a friction clutch in each connection.

17. In combination, la mining machine having a plane cutter bar at one end thereof, and flexible feeding means therefor including a take-up member carried on the opposite end of' said machine from said bar and rotatable by power ina plane at an acute angle to the plane of the cutter bar. 1S. In combination, a mining machine having a cutter bar at one end thereof, and flexible feeding means therefor including a take-up member disposed on the opposite end of said machine from said bar at an acute angle to the plane of the cutter bar with its lower extremity disposed a substantial distance above the machine bottom.

19. In combination, a mining machine having a cutter bar at one end thereof, and flexible feeding means therefor including a take-up member carried on the opposite end of said frame from said bar within the lateral limits thereof and rotatable at will by power in a plane at an acute angle to the plane of the cutter bar.

k2O. In combination, a mining machine having a cutter bar at one end thereof, and flexible feeding means therefor-including a feed operating member and a take-up member disposed on the advancing side and the rear end of said frame respectively, one of said members being rotatable in a plane at n acute angleto the plane of the cutter 21. In combination, a mining machine slidable on a mine bottom during cutting and having a plane cutter bar at one end thereof and disposed in planes parallel to the bottom of said machine, flexible feeding means therefor including a feed member carried on the opposite end of said machine from said bar and rotatable in a plane at an acute angle to the plane of the cutter bar, and means to drive said member at variable speeds. Y

22. In combination, a mining machine slidable upon a mine bottom during cutting and having a plane cutter bar at one end thereof and disposed in planes parallel to the bottom of said machine, flexible feeding means therefor including a feed member carried on the opposite end of said machine from said bar and rotatable in a plane at an acute angle to the plane of the cutterbar, and means including a friction clutch to drive said member at variable speeds.

In testimony whereof I affix my signature.

, MORRIS P. HGLMES.

Images