Abstract: A multiple attachment system is adapted to be attached to demolition equipment. The system includes a universal body attached to the demolition equipment. A series of tools is independently attached to the universal body. The universal body includes a guide slot extending longitudinally along the universal body. Each tool includes a pair of pivotable jaws adapted to pivotably attach to the universal body with at least one linkage extending from the universal body and attachable to each jaw of the tool. A slide member is received within the guide slot, with each linkage attached to the slide member, and a piston cylinder arrangement is attached to the universal body and coupled to the slide member for moving the slide member and the jaws. The multiple tool attachment system is provided with quick change features and is designed to optimize the cutting characteristics throughout the movement cycle.

Abstract: A heavy-duty demolition shear for attachment to the boom structure and hydraulic system of an excavator, has a rigid lower jaw and an upper jaw and pivot interconnecting the jaws together. The shear is attachable to the boom structure of the excavator. The upper jaw has upper shear blades, while the lower jaw has at least one lower shear blade. The lower jaw also has a rigid guide blade lying along the lower shear blade and in spaced relation therewith. The outer ends of the shear blade and guide blade are co-extensively opposed to each other so that a tie plate secures the outer ends of the lower shear blade and the guide blade together. There is an open slot between the lower shear blade and the adjacent guide blade to receive the upper shear blade and upper jaw therein. The upper jaw has a cylinder attached to the hydraulic system of the excavator for closing and opening the upper jaw relative to the lower jaw.

Abstract: A crushing breaking—apparatus is shown having opposed jaw like members between which work to be crushed is placed; the jaw like members are brought closer to each other and in so doing the work becomes crushed; during loading and crushing of the work the lower ends of the jaw like members are held so close to each as to prevent the work, in the main, from falling out from the jaw like members.

Abstract: There is provided apparatus for breaking up a cake 5 of compacted laundry. The cake 5 falls from a conveyor 6 into the nip between a pair of spaced star shaped rollers 1 mounted on a frame 2 and driven by a motor and gearing 3. The broken up articles of laundry fall into a transporting means 8 provided below the rollers 1.

Abstract: The breaker comprises two breaker jaws (17, 19) adapted to be opened and closed hydraulically, with which building parts, concrete parts, brick walls and the like may be clamped. A hydraulic pulse hammer device (25) is mounted to at least one breaker leg (17), which, by means of a piston (29) strikes on the object in the holding area of the breaker and breaks or splits the same. Thus, the efficiency of the breaker is substantially increased.

Abstract: The present invention provides an apparatus that lifts, secures, splits and/or crushes tree stumps or other materials, particularly wooden materials and other materials that may be present at an excavation site. The apparatus is characterized in part by a two pivot point design. A first pivot point allows for the pivotable operation of an engaging unit which grabs and lifts the tree stump. The engaging unit further acts a durable and secure support member for the tree stump during the splitting and crushing process. The second pivot point allows for the pivotable operation of a cutting device which facilitates splitting and crushing of the stumps.

Abstract: The breaker comprises two breaker jaws (17, 19) adapted to be opened and closed hydraulically, with which building parts, concrete parts, brick walls and the like may be clamped. A hydraulic pulse hammer device (25) is mounted to at least one breaker leg (17), which, by means of a piston (29) strikes on the object in the holding area of the breaker and breaks or splits the same. Thus, the efficiency of the breaker is substantially increased.

Abstract: A material shredding device is disclosed which comprises a power source, a first shaft and a second shaft disposed in generally parallel relation and being in communication with the power source for opposite reciprocating rotational movement about respective axes thereof, a plurality of blades attached to the first shaft and the second shaft which are interleaved so as to overlap over a central shredding area and undergo opposite reciprocating rotational movement with the shafts between first and second positions and a material feeding mechanism.

Abstract: The specification describes a method and associated apparatus for pulverising materials, wherein the pulverising apparatus includes a receptacle, two or more pulverising weights and a driving mechanism linked to the receptacle wherein the pulverising weights are disposed substantially horizontally with respect to the receptacle. The method of operating the apparatus includes the steps of: a) placing the pulverising weights in the receptacle, wherein the pulverising weights are disposed substantially horizontally with respect to the receptacle, and b) activating the driving mechanism, causing material(s) retained in the receptacle to be ground by the pulverising weights.

Abstract: A heavy-duty shearing and crushing demolition apparatus for attachment to a boom structure and hydraulic system of an excavator. The apparatus includes a lower jaw with a primary blade, an upper jaw with primary and secondary blades oblique with respect to each other, and a shearing and crushing tip on the upper jaw secondary blade with a shearing point, a crushing point, and a support and shearing tip blade portion between the shearing point and the crushing points. This structure exposes the crushing point for crushing when the upper jaw is open from the lower jaw with the shearing tip out of the way and also exposes the shearing tip for shearing when the upper jaw is closing into the lower jaw. This permits shearing beginning at the shearing tip and shearing rearwardly. The support and shearing tip blade portion supports the workpiece while shearing it, producing a substantially flat non-contoured or twisted workpiece.

Abstract: A crusher which is simple in structure and capable of dismantling a building structure and recovering iron material from among dismantled remains of a building. A movable jaw is provided so as to be opened and closed relative to a fixed jaw fixed to the crusher main frame. A magnetic case made of a nonmagnetizable material is provided on the bottom of the main frame. A permanent magnet assembly is slidably mounted in the case. The permanent magnet assembly is connected to a hydraulic cylinder for sliding the permanent magnet. By actuating the hydraulic cylinder, the permanent magnet will move down so that iron material is attracted through a bottom plate of the magnet case. By raising the permanent magnet assembly, the magnet weakens, so that the attracted iron material drops by gravity.

Abstract: A process for crushing materials by feeding materials to be crushed between two crushing jaws which have a crushing force controlled by a resilient ties capable of providing synchronous vibration of each crushing jaw with respect to each other is provided.

Abstract: A crushing machine for crushing such as concrete structural members of buildings includes: a crushing machine outer casing; a fixed jaw body provided fixedly on the crushing machine outer casing; and a movable jaw body provided movably on the crushing machine outer casing to effect an opening and closing operation in cooperation with the fixed jaw body; wherein a crushing blade formed substantially in a shape of a semicircular cutting blade is provided at a distal end of the movable jaw body. The crushing blade includes a rear-side edge which is formed in a substantially right-angled shape with a small arcuate edge portion located at an angled portion thereof and a front-side edge which as a whole is generally formed by a large arcuate edge portion. The rear-side edge is located at a position closer to a longitudinally inward direction side of the movable jaw body relative to the front-side edge.

Abstract: A cutting/crushing device for the demolition of buildings has a pair of jaws that pivot on frame. The jaws are constrained to pivot in synchrony because each jaw remains engaged with a guide pin which substantially prevents relative movement of the two jaws. The guide pin is guided by a slot in the frame, aligned with a plane of symmetry between the two jaws, to prevent it from moving toward or away from either jaw. By guiding the guide pin in this way, frictional binding and wear of the guide pin are minimized. In addition, the shape of the recesses into which the guide pin fits can have smaller tolerances reducing play between the two jaws. Stoppers on the frame press against the rotatable jaws when they are filly opened to prevent any play.

Abstract: A crusher capable of effectively crushing a building structure, shearing iron reinforcing rods, etc., smashing the crushed scraps into pieces, and collecting and carrying an elongated object. A pair of arms (2a, 2b) are driven to open and close for crushing and shearing the object. A front end of each of the pair of arms is divided into a plurality of fingers to which claws (7a, 7a', 7b) are respectively attached. Only the central claw (7a') is inwardly directed by a greater angle as compared with the other claws (7a, 7b). Each arms has a shearing blade (10a, 10b) for shearing an iron reinforcing rod, an iron frame, etc. in the vicinity of the pivoted portion, and also through holes (11) in the central portion. Weight of the arms (2a, 2b) and an arm support (3) are balanced with respect to the central axis of rotation of the arm support (3).

Abstract: A concrete crusher has cutting shears with a first cutting arm forming an additional arm on one of the jaws of the breaker tongs and a second cutting arm rigidly joined to the frame of the concrete crusher. An hydraulic piston/cylinder unit drives the jaws such that the first cutting arm is in an open position relative to the second cutting arm when the jaws are in an open position.

Abstract: The shearing machine is designed to surely shear an object to be sheared with less amount of power without causing slips. A plurality of lower shear blades mounted on a lower jaw member are arranged such that the arrangement of the cutting edges forms a convexity curved downward. The front edge portion of each shear blade inwardly protrudes from an adjacent rear edge portion of each forward adjacent shear blade. A plurality of upper shear blades mounted on an upper jaw member are arranged such that the arrangement of the cutting edges forms a convexity curved upward. The front edge portion of each shear blade inwardly protrudes from an adjacent rear edge portion of each forward adjacent shear blade.

Abstract: A crusher having a bracket pivotally mounted on a free end of an arm of a civil engineering machine, a frame having a pair of support plates and rotatably mounted on the bracket, a lock arm having a pair of arm plates and pivotally mounted between the pair of support plates, the lock arm carrying at one end thereof a crushing jaw, a movable arm mounted between the arm plates of the lock arm so as to be pivotable about a first axis that is nearer to the tip of the arm than a second axis about which the lock arm pivots, a trunnion type drive cylinder mounted between the arm plates for pivoting the movable arm toward and away from the crushing jaw, the drive cylinder having pivots arranged on the second axis and pivotally supporting the lock arm, and a fixing means for fixing the lock arm to the frame at both ends of the pivoting motion of the pivot shaft about the second axis. The ends are separated a predetermined angle from each other.

Abstract: Crushing equipment includes a pair of crushing members disposed symmetrically with respect to a frame in juxtaposed relationship with each other, the crushing members being pivotally supported at substantially central portions thereof by the frame and having crushing portions each formed on one side of each crushing member and confronting each other, and a fluid-pressure cylinder connecting the other sides of the crushing members to each other. A fitting member is vertically movably mounted on the frame. The fluid-pressure cylinder is movably supported by the fitting member in a longitudinal direction of a cylinder tube of the fluid-pressure cylinder. A damper device is interposed between the fitting member and each of portions of the fluid-pressure cylinder positioned on both sides thereof, so that the fluid-pressure cylinder is resiliently held against the fitting member.

Abstract: A pair of arms (2a, 2b) is rotatably supported on a support through pins (8) at their intermediate portions. A front portion of each arm extending from the portion supported by the pin (8) to the distal end has a distal end formed into a fork comprising a plurality of prongs. The claws (7a, 7a', 7a, 7b, 7b) are attached on respective distal ends of these plural prongs. Only a specific claw (7a') of the claws (7a, 7a', 7a) of one arm (2a), having a pointed conical distal end, is positioned to protrude inward farther than the remaining claws (7a, 7a) and serves to generate deep and shallow cracks where it is forcibly applied to material to be crushed. Shearing blades (10a, 10a) are provided on the front portions of respective arms (2a, 2b) in the vicinity of the portions rotatably supported by the pins (8).

Abstract: This invention relates to improvements and modifications to a rock crusher. The rock crusher has at least two jaws the jaws being driven at different ends to each other. The non-driven end of at least one jaw is sufficiently free to allow vertical movement of that jaw with respect to the other jaw. This vertical movement imparts a grinding action in addition to the crushing action of the rock crusher. This removes the problems which can occur with wadding and can produce a very fine ground rock.

Abstract: A metallic waste disposal device for industrial machinery, wherein a working unit attached to the distal end of a movable arm of a construction machine is provided with a permanent magnet assembly which attracts and disposes of metallic wastes produced when tearing down a building.

Abstract: A shearing machine for steel material adapted to be mounted, as an attachment, on a forward end of an arm of a working machine such as a power shovel is provided. The shearing machine comprises a body of the shearing machine having a longitudinal axis, a pair of upper and lower jaws pivotably supported at a forward end portion of the body of the shearing machine by means of a common shaft for open-close movement relative to one another, a pair of upper and lower shearing blades attached respectively to the upper and lower jaws. The upper and lower shearing blades defining a shearing plane in which shearing action for a steel material proceeds.

Abstract: The invention relates to a device for crushing and/or cutting material, which is provided with a frame having coupling means by which said frame can be coupled to the jib of an excavator or the like. A first jaw occupying a fixed position with respect to the frame during operation is connected to the frame, as is a second jaw cooperating with said first jaw. The second jaw is pivotable about a pivot pin with respect to the frame by means of a setting cylinder in a direction towards the first jaw and in a direction away from the first jaw. The first jaw is detachably connected to the frame by means of said pivot pin and a second pin located at some distance from said pivot pin, and the second jaw is detachably connected to the frame by means of said pivot pin and a pin coupling the second jaw to the setting cylinder.

Abstract: Disclosed is a crushing equipment for crushing a pillar or beam of concrete structures through opening and closing movement of a pair of arms while clamping the pillar or beam by a pair of crushing blades provided on the ends of the arms. A hydraulic cylinder 1 for opening and closing the arms comprises a second cylinder including a couple of cylinders 3' and 3", and a pair of first cylinders fitted into the cylinders 3' and 3", respectively, and each having a cylinder bottom serving as a piston 9. When a hydraulic oil is introduced through a fifth oil port 18 provided in the second cylinder on the side of the cylinder bottom, the first cylinders 2 are forwardly displaced. When the first cylinders 2 reach their stroke ends, pistons of the first cylinders are forwardly moved to close the arms for crushing the concrete structure. When the hydraulic oil is introduced through fourth oil ports 16, the pistons 5 are retracted by way of second oil ports 10 and oil passages 11.

Abstract: A universal breaking machine is provided which comprising a pair of movable arms pivotably connected to a support frame for open-close movement, and a hydraulic cylinder for causing the open-close movement of the pair of movable arms. The pair of movable arms are adapted to secure detachably, at the opposite, forward end surfaces thereof, a set of or a pair of tool rests for long cutter having a long cutter thereon, tool rests for short cutter having, at the rearward end thereof, a short cutter of a length smaller than that of the long cutter, and having a crusher at the forward end thereof, or smashing blocks having a plurality of large protrusions. A secondary breaking attachment having a plurality of small protrusions thereon may be removably attached, as desired, to the opposite, forward-most surfaces of the pair of movable arms.

Abstract: A replaceable blade assembly is used to secure tool blades to the jaws of a material handler and comprises a holder secured to the jaw and a blade insert which is releasably secured thereto. The holder has a face with an elongated intermediate portion, an inclined end portion adjacent its outer end, a channel extending along the elongated intermediate portion, and a recess in the inclined end portion. The blade insert has a first face for mounting against the face of the holder with an elongated intermediate portion bearing against the elongated intermediate portion of the holder. A inclined end portion adjacent the outer end of the blade insert bears against the inclined end portion of the holder, and a spine on the elongated portion seats in the channel of the holder. A projection on the outer end of the blade insert seats in the holder recess, and a fastener releasably secures the inner end of the insert to the inner end of the holder.

Abstract: A mobile crusher includes a caterpillar-type undercarriage and a chassis frame mounted on the undercarriage. A motor-driven crushing tool is mounted in the chassis frame. A hopper is connected to the chassis frame, so as to be swingable relative to the undercarriage about a horizontal axis. At least one conveyor for discharging crushed material from the crushing tool is connected to the chassis frame. A downwardly connected kingbolt which can be coupled to a coupling member of a tractor is attached to the underside of the hopper at a location remote from the horizontal axis of the chassis frame. A wheel unit with a plurality of wheels is connected to a conveyor frame which supports the conveyor.

Abstract: Device and method for processing plastic articles, comprising a side-acting press followed by a shear. The device and the process may advantageously be applied to articles of elongate shape, such as pipes, which are firstly squashed by the press and then cut up by the shear, which leads to the formation of fragments, the morphology and geometry of which depend on their nature, which facilitates the subsequent classification thereof.

Abstract: An apparatus for fragmenting a block of frozen vegetable tissue such as peat moss, without causing wide-spread damage to the individual vegetable fibers, comprising a pair of planar jaw members movable between opened and closed positions. Each jaw member has a grating-like configuration defining a plurality of discharge apertures in a spaced apart relationship and also comprises projecting crushing teeth. In the closed position, the jaw members are in a mating relationship, whereby the crushing teeth of each jaw member deeply penetrate the discharge apertures of the opposite jaw member. In operation, a block of frozen vegetable tissue is loaded between the jaw members while they are in the opened position. The jaw members are closed for bursting into fragments the block of frozen vegetable tissue under the effect of multiple pressure points created by the crushing teeth on the block surface and for expelling the fragments through the discharge apertures.

Abstract: Breaking equipment comprising a mounting bracket that is attached to an arm of a power shovel for vertical pivotal movement, a holder frame mounted on the mounting bracket for swivel movement, a hydraulic motor attached to the mounting bracket for rotatably and reversibly driving the holder frame or a swivel break mechanism which is used in place of the hydraulic motor for restricting swivel movement of the holder frame, a pair of pivot arms of a symmetrically L-shaped configuration attached at their mid points to the holder frame by means of pivot axes, the pivot axes being separated apart a predetermined distance H from one another so as to satisfy the equations; a=<b and H=<2h, wherein, a is a distance from the pivot point to the forward end of each of the pivot arms, b is a distances from the pivot point to the rearward end of each of the pivot arms, and h is a distance from the blade edge vertically to the line connecting the pivot point and the forward point of the application, a hydraulic cylinde

Abstract: A crusher-is disposed at a distal end of an operating boom of a construction vehicle. The crusher permits the breaking of a crushed mass of natural stone by means of a breaking force occurring between a stationary jaw body and a movable jaw body as the movable jaw body is closed toward the stationary jaw body. A flat auxiliary member is replaceably disposed on the stationary jaw body opposing the movable jaw body so as to break the crushed mass into smaller pieces. The distal end of the stationary jaw body projects longer than the distal end of the movable jaw body to facilitate the raking out of the crushed masses obtained in a blasting operation.

Abstract: A method of crushing material between cooperating jaws of a crushing jaw assembly of a demolition tool includes the steps of applying a closing force to at least one of the jaws for urging the jaws toward one another; and imparting a vibratory motion to at least one of the jaws while the closing force is applied.

Abstract: A demolition tool includes a carrier body and two tool blades mounted thereon to define a tool mouth for receiving material to be crushed. The demolition tool further has a hydraulic cylinder including a cylinder housing as well as first and second chambers defined therein. A piston rod is received in the cylinder housing and projects therefrom for moving at least one of the blades. First and second pistons are spacedly affixed to the piston rod and bound the first and second chambers, respectively. Hydraulic fluid is introducible into the first and second chambers for exposing the pistons to pressure to generate a force for moving the piston rod in a working direction. A control unit is operatively connected to the chambers for controlling admission of hydraulic fluid thereto. The control unit has a first position in which the control unit admits hydraulic fluid solely to the second chamber and a second position in which the control unit admits hydraulic fluid under pressure to the first chamber.

Abstract: A demolition apparatus for breaking up and demolishing in particular reinforced concrete comprises two shear-like cooperating, hydraulically driven jaws, whereof one has at least two and the other at least three working ledges provided with breaking teeth and which are all juxtaposed in parallel and interengage in alternating manner in the closed position. For the effective crushing of conrete, in the case of the jaw with the larger number of working ledges, the two outer ledges are in a common plane at right angles to the closing movement, while the intermediate ledges are set back with respect to the closing movement.

Abstract: A method of operating a jaw crusher having a specified speed, a specific throw, and a specified horsepower draw to achieve a specified crushing force and a resulting crusher throughput capacity includes increasing the throw over the specified level and maintaining or decreasing the speed below the specified level so that the crusher capacity is increased without increasing the crushing force.

Abstract: A device for processing materials such as rock, ore, clay, bulk materials and agglomerated pulverized materials includes at least two tools having working surfaces thereon of at least partially circular cylindrical cross section. The tools are oriented such that the working surfaces thereof are in opposed horizontally spaced relation, and the device includes a mechanism for moving at least one of the tools with an up and down pendulum motion about the respective axis thereof. The tools include upper surface portions and lower surface portions, and the upper surface portion of at least one of the tools has a plurality of comminuting projections thereon for preprocessing relatively large sized materials. The lower surface portions of the tools are substantially smooth, and they are positioned in closely spaced relation for processing materials therebetween to form a finely milled and product.

Abstract: A hand crusher with a main body, which consists of a cylinder unit having a built-in oblong hydraulic cylinder and a parallel plate unit bonded on the periphery of said cylinder unit. Crushing arms are pivotally supported on the lower portion of the parallel plate unit, and the crushing are opened or closed in linkage with a piston rod, which extends from the hydraulic cylinder and makes reciprocal movement along the center line. Slide keys located at the tip of the piston rod engage in guide grooves on the parallel plate unit. A ring-like handle member is rotatably mounted on the rotating unit at the upper end of the cylinder unit, and a left grip and a right grip are connected on both ends of the handle member. On the inner periphery of the rotating unit of the handle member, balls are movably embedded at symmetrical positions, and catching recesses to catch the balls are furnished at every predetermined angle on the outer periphery of the rotating unit.

Abstract: An attachment for a hydraulic excavator including a pair of jaws mounted on a frame and having offset points or projections on the jaws to apply localized pressure onto a rock or coral piece for breaking the workpiece. Both jaws are movable and operable by individual hydraulic cylinders. The direction of thrust against the jaws being tangential to the arc of movement of the pins for connecting the cylinders to the jaws at a location approximately midway of the operational arc of the jaws.

Abstract: An automated grain characterization system includes grain crushing apparatus; a means for singulating kernels of grain and feeding them into the crushing apparatus; a means for measuring kernel size; a circuit for measuring kernel conductance; and a data acquisition and analysis subsystem for correlating crushing force, size, and conductivity to grain hardness. The output is a profile of the grain characteristics which can be compared to reference samples. This system is especially useful for grading and classifying wheat and predicting its end-use functional properties.

Abstract: A conveyor for conveying material from one location to another location includes a device for contacting the material on the conveyor as the material is being conveyed to crush, break, pulverize, or otherwise attenuate the material. The material attenuating device is particularly well suited for use on vibratory conveyors but can also be used in conjunction with other types of conveyors such as belt conveyors and the like. The material attenuating device includes a lever pivotally mounted for oscillatory motion. The lever is connected to the conveyor, or to a drive for the conveyor. The free end of the lever has a tool for contacting the material on the conveyor as it is being conveyed as the lever oscillates to crush, break, pulverize or otherwise attenuate the material.

Abstract: A rotation adjusting apparatus in a crusher is disclosed which even if siding members of a rotational mechanism of the crusher wear in use, the wear is adjusted easily and rapidly. In the crusher, a rotational housing with a pair of pawls which crushes or cuts an object, such as a reinforced concrete or a steel frame, to be crushed or cut is held to a fixing member by a holding member such that a wear is adjustable, and the housing can be rotated to a desired rotational angle and fixed there by rotation restricters and a rotation stopper.

Abstract: The breaking tongs with a tong body (7) for receiving two tong parts (1, 1'), each pivotable about its own rotation center (2, 2'), and spaced from the rotation center the tongs are subdivided into a tong lever (3, 3') for the force action and a cutting lever (4, 4') for exerting the breaking force. The tong protuberances (12, 61, 63) are detachably mounted on the cutting levers. In the vicinity of the tong cutting edge (4, 4') separating blades (6, 6') can be provided for cutting reinforcements. The detachable tong protuberances (61, 63) can be detachably fixed in a protuberance bed (60), which is detachably arranged or shaped on to the cutting lever (4, 4'). A plurality of tong protuberances can form a working profile, which differs as regards the breaking action from another working profile formed from the same or a different number of tong protuberances.

Abstract: To provide a portable demolition apparatus for concrete slabs, plates or the like, a clamping arch (1) having two end portions (12, 13) is equipped with pointed bolts (15, 16; 17, 18) at the ends; at least one (16, 18) of the pointed bolts is coupled to a cylinder-piston arrangement (21) which, upon application of high hydraulic pressure in the order of for example 800 bar, drives the pointed bolt towards the other, thus cracking the concrete plate, slab or the like between the points. Hydraulic pressure is obtained from a separately located pressure source, which permits construction of the arch of lightweight material, with an overall weight of 50 kg or less, with a jaw clearance opening of 45 cm or less, application of hydraulic force being controlled by a pilot valve-control slider arrangement (23, 24) located directly on the clamping arch and coupled to the remotely located pressure source by suitable pressure hoses.

Abstract: A jaw crusher is equipped for the first time with a horizonal crushing chamber and, for replacement of gravity for the conveyance of the material being crushed through the crushing chamber, with an abutment comprising a chain conveyor. The mechanism for applying the crushing force on the jaw rocker (10) is selected so that the action is equivalent to that of a double bell-crank jaw crusher even for hardest material and in particular for recycling material such as reinforced concrete.

Abstract: 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 angular movement relative to the bracket member about an axis of a piston rod of the hydraulic piston-cylinder unit. At least one of a pair of opposed arms has a forward end provided with a crushing member. The pair of arms are operatively connected to the piston rod for pivotal movement, between closed and open positions, toward and away from each other and toward and away from a plane including an axis of the piston rod. A wall of a cylinder of the piston-cylinder unit is formed with passageway supplying hydraulic fluid from a hose unit of the working machine, into the cylinder. A rotatable coupling enables the passageway and the hose unit to communicate with each other, even when the piston-cylinder unit moves angularly about the axis of the piston rod relatively to the bracket member.

Abstract: A crushing apparatus has an hydraulic cylinder for actuating a toggle mechanism connected to a moveable jaw. The apparatus may have a main frame with an opening near the top of the frame for admitting material to be crushed. There is a first jaw connected to the frame on one side of the opening by a first pivotal connection near the top of the jaw. A first toggle mechanism is operatively associated with the first jaw. There may also be a second jaw connected to the frame on a side of the opening opposite the first jaw by a second pivotal connection near the bottom of the second jaw. A second toggle mechanism is operatively associated with the bottom mounted jaw. The crushing apparatus may have a toggle mount which is movable towards or away from the associated jaw.

Abstract: Improvements are disclosed for a jaw crusher having converging and opposed jaws defining a space for passage of material to be crushed. An improved assembly for imparting oscillatory vibration to at least one jaw comprises multiple eccentric means arranged in vertically spaced apart relation and synchronously operated by split drive means for producing more uniform and consistent operation of the crusher under different load conditions. Another improvement comprises at least two eccentric masses arranged in laterally spaced apart relation on the one jaw by separate shafts which are independently mounted by separate bearings whereby the size of both the eccentric masses and bearings is proportionately reduced to permit crusher operation at increased rates of rotation.

Abstract: A jaw crusher has converging and opposed jaws defining a space for passage of material to be crushed. An improved design for supporting the jaws in floating relation on a frame structure of the crusher includes: upper and lower elongated resilient members connected with the frame structure and upper and lower reaction members connected to each jaw for respective interaction with the elongated resilient members, the upper and lower reaction members being substantially diametrically opposed to each other for permitting oscillatory movement of the jaws while at the same time limiting travel of the jaws in all directions on the frame structure. The improved jaw with upper and lower reaction members as described above facilitates drop-in assembly of the jaws in the crusher.

Abstract: A jaw crusher is disclosed wherein opposed jaws converge downwardly to form a passage for material to be crushed, the jaws being supported on a frame structure by resilient floating mounts connected in series with each other and between the respective jaws and the frame structure. Each resilient floating mount preferably includes a wheel and pneumatic tire arranged coaxially within a relatively larger cylindrical track. Balanced eccentric masses are supported on each jaw for uniformly driving them in oscillatory vibration. The jaws are configured so that when lower portions of the jaws are generally parallel in order to achieve fine crushing, the upper jaw portions form a converging angle of approximately seven to sixteen degrees in order to achieve enhanced crushing particularly in combination with the balanced eccentric masses and the series connected resilient floating mounts.