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7503628 |
Formation breaking assembly
A formation breaking apparatus with increased wear-resistance is disclosed. In one aspect of the invention, the apparatus has an assembly attached to an end of an articulated arm. The assembly has...
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5803550 |
Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting
The present invention is directed to a method for breaking rock and other hard materials using small-charge blasting techniques followed by a mechanical impact breaker. In small-charge blasting...
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5582467 |
Displaceable working apparatus with extensible boom
A displaceable working apparatus provided with a platform having an extensible boom and being displaced on a guide rail is disclosed. The apparatus has a main frame secured to a main support which...
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5407252 |
Method and apparatus for scaling mine roofs and ribs
A mine scaling tool having a base plate to which a collar is concentrically attached on one side and appropriately supported with gusseted rib plates. A relatively long, heavy walled tube is...
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5405092 |
Screen crusher for soil materials
Soil materials are screened and crushed simultaneously in a bucket of an excavating machine having its back wall replaced by rotatable crushing and screening elements. The crushed and screened...
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5333937 |
Excavation machine having combined impact hammers and static ripper pick
An excavating machine having a cutter head which is provided with both reciprocating impact hammers and a static pick. The impact hammers are mounted on either side of the static pick so as to...
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5179757 |
Apparatus for descaling a process vessel
Apparatus for removing deposits from the interior surface of a vessel wall including an elongated support column having its upper end attached to a cable to position the support column vertically...
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5180210 |
Chiseling apparatus
A piston and cylinder combination mounted on the end of an elongated handle projects into a chimney. A chisel is connected to the piston to reciprocate with the piston in response to high pressure...
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5020183 |
Cleaning apparatus for a process vessel
An apparatus and method for cleaning hard deposits from the interior wall of a digester vessel. The apparatus includes a work platform assembled within the interior of the vessel from a plurality...
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4890798 |
Structure crushing equipment
An equipment adapted to be installed on a working machine, for crushing a structure. A hydraulic piston-cylinder unit is mounted to a bracket member to be mounted to the wording machine, for...
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4871211 |
Method of restoring refractory lining for repeated use using thermal shock and milling procedures
A method is provided for restoring a refractory lining for repeated use. The lining is present on a underlying wall surface and is still hot from a previous use when one induces thermal shock in...
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4861112 |
Apparatus for cleaning aluminum cells
Apparatus for cleaning accumulated spent alumina, dross, aluminum pads, refractories and carbon rods from an aluminum cell including a first platform supported on outrigger members for spanning the...
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4813313 |
Apparatus for demolishing a reactor shield wall
The invention relates to an apparatus for demolishing a reactor shield wall. The apparatus has a pillar (2) extending from the top side of the reactor toward the bottom of the reactor, an upper...
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4778221 |
Movable device for openpit mining
A movable device (1) for openpit mining has a plurality of excavating hammers (11) on a cantilever boom (2) being swivellable in height direction. For facilitating the continuous excavating work...
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4527640 |
Working platform for a drilling apparatus
A working platform for a drilling apparatus for stoping shafts, said drilling apparatus comprising a base (3) displaceable in the direction of the shaft (1) and a supporting arm (5) pivotably...
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4396401 |
Poking system for gasifiers
A poking system for use in checking the condition of and agitating the contents of a coal gasifier utilizes a carriage (22) for transporting a poker (50) around the gasifier from one poke hole (12)...
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4363519 |
Continuous mining machine
A mining machine for performing a continuous mining operation in hard rock. The operating portions of the machine are mounted on substantial deck sections hingedly connected to each other to...
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4344652 |
Means for removing the lining of a crucible furnace
An apparatus for removing the lining of a crucible furnace comprises a tubular support which can be introduced into the furnace substantially in the axial direction of the latter. A power-driven...
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4324435 |
Lock assembly for earthworking apparatus
A pivotal lock member (27) is secured to an earthworking apparatus (10) and a plurality of lock stations (28,29,30) are connected to a mounting assembly (21) which supports the earthworking...
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4300802 |
Apparatus for drifting openings in hard rock
An apparatus for drifting openings in hard rock incorporating a carrier capable for travelling along the floor of the opening. A means of breaking of the percussive type is mounted on the carrier...
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4247149 |
Mechanically actuated impact mechanism
An impact mechanism for rock breaking, pile driving and pile extracting, and the like, includes a head assembly (18) with a pair of shank members (24,26) movably mounted thereto and flywheel...
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4243107 |
Hydraulic hammer mounted on a movable boom
An improved arrangement for operating a hydraulic hammer at a distance from the hydraulic supply. The hydraulic hammer which can be used for breaking rocks, concrete, and the like is disposed at...
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4239291 |
Industrial metallurgical delining assembly
An industrial metallurgical delining assembly for dislodging and removing refractory or other material from upwardly open metallurgical process vessels. The assembly includes a spider-leg frame,...
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4206947 |
Percussive slot cutter
A machine for cutting a slot in hard rock uses a percussive drill to slot the rock, the drill being so mounted that the tool has an obtuse angle to the base of the slot in the direction of advance,...
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4196862 |
Apparatus for crushing building materials
Apparatus for crushing building materials such as concrete blocks with a uniform pressure. Crushing jaws are separately pivotably attached to side support plates in a disclosed manner so that no...
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4140348 |
Excavating machine equipped with an attachment for scraper activity on walls and vaults
An excavating machine having a work implement or material excavating tool articulated on the free end of a working arm of the excavator to absorb and dissipate high stress impact loading on the...
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4126083 |
Attitude control for implement
In a vehicle including a stick cylinder movable to change the attitude of a stick relative to a boom, and an implement cylinder movable to change the inclination of an implement relative to the...
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4095306 |
Reaction ladle cleaning machine
A cleaning machine for removing slag from the interior of a reaction ladle characterized in that the ladle is supported in upright position on a turntable for angular indexing about its vertical...
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4080000 |
Tunnelling machine
An excavating and/or tunneling machine having a mobile support unit with suitable endless tracks for advancing the unit. The support unit serves as the base or chassis for an excavating screw,...
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4072354 |
Breaker apparatus
Apparatus including a downwardly-extending breaker bar connected for vertical movement by linkage to a base adapted to be mounted on a suitable traction unit. A hydraulic cylinder unit extends...
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4068895 |
Demolition machine for delining a furnace
The masonary or refractory material employed in the lining of blast furnaces has to be demolished, torn out, reconditioned, or replaced periodically, due to wear and deterioration of such material...
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3998493 |
Combined milling and impact apparatus for tunneling
A support displaceable along a tunnel or gallery floor by means of a caterpillar drive is provided with a rotatable milling tool that can be brought into engagement with a lower portion of a face...
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3958831 |
Tunnel excavator
An excavator for excavating a tunnel is provided which has a body provided with gathering and transporting means for the materials excavated by the excavator for discharging the same. The excavator...
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3922017 |
Impact material fracturing device for excavators and the like
There is disclosed an impact material fracturing apparatus that is operated by a dynamic mechanical system designed to deliver large amounts of power in a compact system. The apparatus provides a...
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3905647 |
Crust-breakers
Crust-breaker unit for ready assembly in or disassembly from a vehicle having front and rear wheels. The unit includes a crust-breaking tool and an arm construction adapted to connect said tool to...
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3868145 |
ECCENTRIC RING IMPACTING MECHANISM FOR IN-SITU ROCK BREAKERS
There is disclosed a mechanically driven impact rock fracturing mechanism having a rotary eccentric shaft drive. An impact member in the form of a ring is rotatably mounted on the eccentric shaft...
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3863989 |
HARD-ROCK MINING MACHINE
A hard-rock mining machine having a percussive working member adjustably mounted for rotating in two mutually perpendicular directions i.e., compound movement on an extensible thrusting frame...
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3860290 |
MINING, ROCK BREAKING, EXCAVATING MACHINE AND IMPLEMENT
A mineral or other materials working machine or implement has an adjustable mounting means for a mineral or other materials working tool. Means is provided for adjusting said mounting means to...
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3854776 |
IMPACT MINING MACHINE HAVING CONVEYOR EXTENDING ON FRONT AND SIDE
A mining or excavating machine comprises a carriage or self-propelled vehicle having mounted on it an extensible and maneuverable boom which carries a pressure fluid operated impact tool for...
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3828862 |
TRAVELLING OVERHEAD CARRIAGE MINING MACHINE WITH ARTICULATED, TOOL CARRYING BOOM
A handling device such as a coal cutting tool in which a carriage is mounted on overhead rails for movement therealong and supports a depending articulated arm arrangement to which can be secured a...
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3807802 |
DEMOLITION MACHINE
A demolition machine comprising a high-lift machine, a bucket or support pivotally mounted on a boom structure of said high-lift machine, means on said high-lift machine for elevating and tilting...
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3774698 |
APPARATUS FOR REMOVING LININGS AND OR/SLAG FROM FURNACES AND THE LIKE
Apparatus for delining a furnace of the kind including a platform for positioning within the furnace, which platform carries a turntable on which a boom is mounted for pivotal movement in a...
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3773118 |
UTILITY DEVICE
Disclosed is a utility device such as a pneumatic hammer universally mounted upon an extendabe arm and boom arrangement capable of being attached to a vehicle. The pneumatic hammer is mounted in a...
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3754790 |
SELF-PROPELLED VEHICLE FOR A ROCK WORKING MACHINE
A vehicle carries an extensible boom rotatable about a horizontal and vertical axes. The end of the boom arm carries a universally articulated rock breaking tool mounting means. The vehicle has two...
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3752240 |
METHOD OF AND APPARATUS FOR PROVIDING AN IMPACT TO A VEHICLED CARRIED PENETRATING TOOL
Providing an impact force on the push arm of a material penetrating tool by the tool carrying vehicle. A cutting tool slidably connected to a tractor in a generally longitudinal direction which is...
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3746104 |
ROCK WORKING IMPLEMENT CARRIER
A rock working implement carrier comprising a boom adapted to be pivotally mounted by one end on a mobile machine, power means to move the boom relative to the machine and hold it in a selected...
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3729056 |
MINING AND EXCAVATING APPARATUS
A percussive mining and excavating apparatus has a carriage supporting a body which is rotatable on the carriage about a substantially vertical axis. An arm has one end pivoted on the body about a...
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3705747 |
STRUCTURE DEMOLITION APPARATUS
An apparatus for demolishing structures comprising a frame adapted to fit over or around a portion of the structure to be demolished and a plurality of cutting chisels which can be moved under...
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3682253 |
MOUNTING FRAME FOR ROCK BREAKERS AND ROCK IMPLEMENTS
A mobile mounting frame for rock working tools having universally movable tool positioning and operatively supporting means.
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3658384 |
DETACHABLE WRECKING DEVICE
An implement for wrecking small buildings which may conveniently be attached to or removed from a bucket loader is described. It comprises upper and lower tubular booms for connection to the upper...
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