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7721869 |
The invention provides an apparatus for moving a mine conveyor segment (2, 3) between a first position in line with a train of conveyor segments and a second storage position out of line with the train of conveyor segments, comprising: a...
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7703857 |
A continuous miner including a support frame having a support frame front, and a sumping frame mounted on the support frame for forward and rearward movement relative to the support frame. The sumping frame has a sumping frame front, and...
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7523996 |
An auger shaft bearing support includes a multi-part inner bearing, a multi-part outer bearing, and a multi-part housing. The inner bearing is secured to the auger shaft and rotates with the auger shaft. The inner bearing has an outer su...
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7461902 |
An auger shaft bearing support includes a multi-part inner bearing, a multi-part outer bearing, and a multi-part housing. The inner bearing is secured to the auger shaft and rotates with the auger shaft. The inner bearing has a partial s...
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7059072 |
An excavator bucket adapted to receive subsoiler shanks and an optional coulter blade enables multiple treatment of compacted soil. In a preferred embodiment, the shanks depend downward below the bucket and curve forward toward the botto...
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6652035 |
A highwall mining system of the type wherein multiple conveyor cars are connected together to form a conveyor train which extends into a seam being mined by a mechanical miner located at the inner end of the conveyor train is capable of ...
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6422374 |
A mining conveyor system that advances into a mine behind a continuous mining device. The mining conveyor system has a plurality of conveyance units connected to each other in a train-like fashion. Each conveyance unit conveys mined mate...
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6220670 |
A method and apparatus for mining of aggregate material from a seam includes a mining apparatus and a self-propelled conveyor capable of advancing or retreating in the seam on its own power and advancing and steering arrangement for the ...
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6042191 |
A conveyor unit for a high wall mining system; a mining system employing a train of such units. The conveyor units are pushed in tandem into the mine. The system contemplates a motor mounted on a cutter at the head of the train; through ...
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5967616 |
Apparatus for controlling the operation of an underground mining system including a continuous miner, a roof bolting machine, a tramming conveyor and a control cab operatively connected to the tramming conveyor. The apparatus includes a ...
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5938289 |
A conveyor unit for a high wall mining system; a mining system employing a train of such units. The conveyor units are pushed in tandem into the mine. The system contemplates a motor mounted on a cutter at the head of the train; through ...
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5848825 |
A conveyor unit for a high wall mining system; a mining system employing a train of such units. The conveyor units are pushed in tandem into the mine. The system contemplates a motor mounted on a cutter at the head of the train; through ...
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5820223 |
A highwall mining system for mining aggregate material from a seam (8) includes a mining device (9) for cutting aggregate material from the seam (8) thereby to form a drive (10) in the seam (8), a conveying device (11) for conveying mine...
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5810447 |
Apparatus for controlling the operation of a mining system including a continuous miner, a tramming conveyor and a load-out vehicle operatively connected to the tramming conveyor. The apparatus includes a master computer processor on the...
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5802747 |
A driving device of a jaw crusher of attachment type comprising a hydraulic cylinder having a rod connected with a movable member; a hydraulic source provided on a body of a hydraulic excavator having a mobile travel device; and a contro...
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5692807 |
An apparatus for mining aggregate material from a partially exposed seam adjacent a bench on a surface mine and which extends from the bench at an elevation and angle relative to the bench, The apparatus includes a self-propelled mining ...
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5645158 |
An extensible conveyor apparatus and method for a continuous haulage system and continuous conveyor belt are disclosed for carrying coal or ore discharged from a continuous miner. A top roller combination supports the coal-carrying or or...
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5609397 |
A highwall mining system for mining aggregate material from a seam includes both a mining device for cutting aggregate material from the seam and thereby forming a drive in the seam and a conveying device for conveying mined aggregate ma...
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5590757 |
An extensible conveyor apparatus and method for a continuous haulage system and continuous conveyor belt are disclosed for carrying coal or ore discharged from a continuous miner. A top roller-slider combination supports the coal-carryin...
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5404660 |
A mechanism (22) for supporting an earthworking tool from a vehicle such as a front end-loader (21) includes: (i) a primary support structure (23) adapted to be pivotally attached, in a readily releasable manner, about a generally uprigh...
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5364171 |
An apparatus for mining aggregate material from a seam includes a miner for cutting material from the seam and a conveyor for conveying the won aggregate material from the miner for recovery. The conveyor is formed by a series of individ...
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5232269 |
A launch vehicle is provided for a continuous mining system including modular conveyor units that may be connected together to form a conveyor train. The launch vehicle includes an elongated frame that holds a belt conveyor for conveying...
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5152583 |
A continuous-operation extraction apparatus for strip mining that is self propelled on continuous track treads. A cylindrically-shaped cutting extractor has cutting tools arranged on its peripheral surface. Recesses are provided in this ...
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5120112 |
A continuous mining machine has a drum assembly rotatably supported thereon generally transversely to the axis of the mining machine frame. The drum member has a cylindrical outer surface supporting cutter bits for sumping into the mine ...
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5112111 |
An apparatus for mining aggregate material from a seam includes a miner for cutting material from the seam and a conveyor for conveying the won aggregate material from the miner for recovery. The conveyor is formed by a series of individ...
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5072994 |
A shearing machine with shearing heads or drums rotatably mounted on a luffable shearing arm and a loading ramp or a conveyor running in the direction of the heading face for receiving and conveying away the sheared material. The loading...
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5060405 |
A bucket loader wherein the bucket is pivotally mounted at one end of an arm. The other end of the arm is pivotably connected to the locomotive of a multiple-trolley train which is mounted for travel along an overhead monorail in a surfa...
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5013093 |
A universal ripper miner used to cut, collect and transfer material from an underground mine working face includes a cutter head that is vertically movable in an arcuate cutting cycle by means of drive members, such as hydraulically actu...
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4998777 |
A coal-cutting machine (1) having an all-round swivelling jib boom (6), on which cutting implements (17) are rotatably supported, and a loading platform (3) comprising a loading platform which can swivel about an axis (4) extending trans...
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4986412 |
An extensible conveyor for following a continuous tunneling or mining machine. The conveyor frame is made up of identical modules which can be added end to end at the end of the frame, the modules including return reach rollers. A separa...
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4959915 |
Impact buckets are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using vibrating mechanisms which are mechanically coupled to a cutting edge assembly do not produce forces high en...
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4946227 |
A bucket wheel assembly for excavating solid material from the ground which can be slurried with water has a series of buckets mounted on a framework rotatable about a substantially horizontal axis, the buckets, being secured to the fram...
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4890720 |
An extensible conveyor for following a continuous tunneling or mining machine. The conveyor frame is made up of identical modules which can be added end to end at the end of the frame, the modules including return reach rollers. A separa...
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4886396 |
A method for renewing an existing pipeline comprises the steps of advancing a shield tunnelling machine from one end of an existing pipe defining the existing pipeline to the other end thereof, excavating at least the existing pipe by th...
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4878714 |
Then invention relates to a cutting machine having cutting heads or drums which are supported to be freely rotating on a pivoting cutting arm, with a loading ramp or conveyor which extends in the direction to the work face to receive and...
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4818026 |
A shield type tunneling apparatus comprises: a shield body having in its front portion a cutter-head compartment for digging a tunnel through bedrock, the cutter-head compartment being rotatably driven by a driving unit; and a transporti...
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4790395 |
Pipe-driving apparatus used to create a pipe line of small diameter uses a pressing station in an access trench to drive in pipe sections one by one. A boring head and conveyor worm operates at the front of the pipe line in a working pip...
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4785560 |
An excavating apparatus for breaking and removing material away from an upright face of material is disclosed. The apparatus includes a rotary cutting head mounted between the fore ends of a pair of boom arms. The boom arms are pivotally...
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4763955 |
A miner, and method of mining, are provided for pitch seam mining of coal. The cutting heads powered from a power source at the mouth of the seam are introduced into the seam with a desired angle of inclination, and a chain conveyor with...
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4688855 |
A mine drift advancing machine includes a cutting arm pivoted at its rear end to the machine chassis for movement about a horizontal axis and at its front end supporting a carrier which is pivoted to the arm for movement about a vertical...
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4664448 |
A loading mechanism operating on a loading apron of a tunnel and gallery excavator or the like comprises an eccentric-carrying crank disk, a crank lever, a shear rake, and a link. The eccentric-carrying crank disk is rotatable about its ...
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4663868 |
A rotary wheel excavator having scoops with impact cutters only at the two front corners of the cutting edge of each scoop. Structure is provided for vibrating each impact cutter during a predetermined portion of the rotation of the whee...
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4616880 |
This disclosure relates to a continuous excavator for use in open-pit mining, which comprises a self-propelled main frame, a rotating cutter drum supported by pivotal booms and having cutter bits on its outer periphery for excavating the...
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4605119 |
In a drive arrangement for the loading arms (5) of a loading ramp for a heading machine or longwall shearing machine, each loading arm (5) is rotatably supported in off-center position on a rotary disc (7) and extended beyond its axis of...
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4602821 |
A guide member is mounted to the housing frame to be integrated into the boom or shovel arm of a hydraulic excavator to control an additional implement in the form of a clearing blade or clearing shovel which is displaceable on the guide...
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4595240 |
A device at a combined bucket and frozen soil scarifier (/cable plough), where the bucket (13) and scarifier (10) are intended to be attached to a digger arm of an excavator or corresponding machine, and the width of the scarifier (10) i...
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4573743 |
Instead of teeth or similar cutting or loosening means, oscillating nozzles are arranged on the outer backs and the outer side walls of the buckets of the bucketwheel of a bucketwheel excavator, the nozzles being capable of being supplie...
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4501448 |
A universal ripper miner used to cut, collect, and transfer material from an underground mine working face. The cutter head has a single large cutting bit attached to its periphery and moves in an arcuate cutting motion in a cycle less t...
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4494617 |
A machine for boring a shaft in earth strata or the like. An annular support ring means having an outside diameter approximately equal to the diameter of the shaft which is selectively engageable or disengageable with the shaft wall by t...
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4387928 |
An excavator has a support mountable within the hull of a tunneling shield. A swing frame is rotatably journalled in the support about an axis canted with respect to the axis of the tunnel to permit effective application of an excavating...
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