Abstract: A cutting machine for organic plant materials has a frame in which a cutterhead of a drum having sets of cutting knives (16, 18) symmetrically arranged on its perimeter surface is mounted. At least two separate knife extension arrangement (10, 10a) are arranged opposite to each other within the drum and actuated separately by being connected to the corresponding cutting knives (16, 18) through a motor (1, 1a) whose speed is controlled by an external signal independent of speed of the cutterhead drum.

Abstract: The present invention concerns a method for fixing a knife in wood chipper apparatuses over the whole knife length between two steady surfaces. The fixing force is developed by means of a roller chain located between two counter surfaces and reversing its direction at each of its couplings, the roller chain having stationary end rollers and intermediate rollers at the couplings, the intermediate rollers rolling during the press movement in the longitudinal direction of the chain. An external force is applied to the roller chain, the force changing its direction at the touching points of the rollers, so that the force applied to the roller chain affects to multiple points of the counter surfaces thus forming a prominent total pressing force.

Abstract: A mobile crushing machine, equipped with an impact crusher having a separable casing 31 comprising a stationary casing 70 and a movable casing 30, is adopted for casing 31 with the upper end 724 of the stationary casing 70 positioned below the upper end 820 of the movable casing 80 and with the movable casing 80 arranged to permit an operator to collapse the feeding port 31A side of movable casing 80 into the rotation mechanism 39 for transporting the mobile crushing machine The impact crusher is equipped with a gap adjustment device (60).

Abstract: A clean-in-place housing for use is a material processing mill including a screen inside the mill housing that moved from processing position to cleaning position with a screen carrier without disassembling the housing.

Abstract: It has been said that the wheel is the greatest invention of all time; when horses or oxen pulled wagons, dirt roads or no roads sufficed, but the wheels of modern transportation require paved roads for cars and trucks, concrete air strips for airplanes, ballast for railroads, concrete for dams, buildings, and many other things. Rock is the material that answers all these needs, but rock must be crushed to usable sizes. Big boulders or quarried rock are crushed by primary stage jaw or very large gyratory crushers that reduces the rock to sizes that second stage crushers can accept, and if the rock needs to be very small a third stage is used. Cone crushers are the crushers of choice for second and often for third stage crushing which is the type crusher of this patent application.

Abstract: A rock crusher includes a bowl coupled to a frame and a head assembly coupled to the frame defining a crushing gap between the head assembly and the bowl. The rock crusher further includes a number of fixed displacement hydraulic motors adapted to rotate the bowl with respect to the frame and a hydraulic fluid source providing a flow rate of hydraulic fluid to the hydraulic motors. A hydraulic control valve is adapted to remove one of the hydraulic motors from operation, directing the hydraulic fluid to the remaining hydraulic motors. The flow rate of hydraulic fluid remains unchanged, thereby increasing the hydraulic fluid flow rate provided to and the speed of the remaining hydraulic motors.

Abstract: The rotor (2) being operatively associated with an indexing member (13) in the form of a prism, coaxial and secured in rotation with the rotor, said indexing member having a number of projecting edges equal to the number of beaters (3), the indexing member being positioned on the axis of the rotor such that the application of the indexing plate (25) against the surface of the indexing member causes a rotation of the rotor (2) to a position in which one of the beaters is located at a position of maximum approach with the impact baffle (5), wherein approach of said baffle (5) into contact with the end of said beater (3) defines an origin of adjustment of the spacing ® between said baffle and said beater and thus the adjustment of said spacing for the desired granulometry.

Abstract: True zero-clearance cutting on a commercial scale is provided via a cutting area including a sacrifice material that is relatively softer than the cutter. One example is a cutting system which is capable of cutting a material such as, for example, tape or paper, into a fiber or powder. The cutting system includes a cutting blade, typically a rotary cutter, and a sacrificial plate or round bar contacting the cutting blade. The contacting portion has a zero clearance during the cutting operation. A metering mechanism is also provided which is capable of metering the material at a predetermined rate to the cutting blade. A mechanism is also provided for incrementally moving the sacrificial blade towards the cutting blade to ensure that the zero clearance is maintained between the cutting blade and the sacrificial plate, even when the sacrificial plate begins to wear down due to usage.

Abstract: A mobile impact crusher assembly for crushing objects is provided. The mobile impact crusher assembly includes a frame that is configured for attachment to a vehicle. The vehicle is capable of moving the mobile impact crusher assembly and at least partially rotating the mobile impact crusher assembly. The frame is configured to hold objects that are to be crushed. The frame is also configured to allow for crushed to be removed. A rotor is rotationally mounted on the frame. The rotor is configured to rotate and crush objects that are held by the frame.

Abstract: A rock crushing system or conical rock crusher includes a bowl which is threadably engaged to a main frame. The bowl can be adjusted with respect to the main frame at more than one speed by utilizing a gap adjustment mechanism including a variable displacement hydraulic motor. Preferably, a set of two variable displacement hydraulic motor units can be utilized to drive the bowl with respect to the frame at a lower torque, higher speed setting and at a higher torque, lower speed setting.

Abstract: A cutting mill has a cutting rotor and a rotatable sizing means, arranged together with the cutting rotor in a common housing.

Abstract: An apparatus for selectively relieving the load on the adjusting rods of a horizontal shaft impact crusher is disclosed. The apparatus includes a linear actuator mounted to the exterior of the crusher frame. It also includes a bridge having a bearing section disposed adjacent the linear actuator. The bridge is secured to the adjusting rods such that, energizing the linear actuator applies a force to the bearing section of the bridge to thereby at least partially relieve the load on the adjusting rods. The bridge is sized such that, when the linear actuator is in the released state, the bridge does not add to the height of the crusher.

Abstract: An adjustment mechanism for a rock crusher has an insert installed in the thread form of a bowl support and a locking ring. A bowl is threadably installed in the bowl support and lock ring assembly and is movable toward and away from a cone assembly. The insert is of a material that differs from that of the bowl and bowl support. The lock ring is movable to frictionally lock the thread forms of the bowl and bowl support against each other. The inserts prevent the galling and deformation of the thread forms previously experienced.

Abstract: In order to design the positional displacement of the impact member structurally simple and operationally reliable in an impact crusher having a rotor 9 and an impact member provided in the housing in an adjustable position directly underneath the feed aperture of the material to be crushed, the impact member is provided with an impact plate linearly displaceable in relation to the rotor.

Abstract: An improved positioning device for concaves of cone crushers including a supporting surface formed above a tapered inclined surface of a top cell and projecting inwardly, the supporting surface having slots symmetrically provided thereon for receiving and positioning lower positioning elements, and an annular flange disposed on the supporting surface. Opposite to the upper contact face of the supporting surface, the annular flange is provided with symmetrically distributed projections. Each projection is provided with a groove at a bottom edge thereof for receiving an upper positioning element mounted in place by a sunk-head bolt. A lower end face of the upper positioning element is configured to have a tapered surface that matches the respective one of the lower positioning elements. Furthermore, upper surfaces of the projections are provided with symmetrical key slots that are equivalent to the projections in number for mounting of stop blocks using sunk-head bolts.

Abstract: An improvement relating to a rotary mineral breaker tip assembly and components therefor. A tip assembly is provided which presents an edge of a wear resistant tip which is able to be positioned within a rotary mineral breaker assembly by use of a position modifying means.

Abstract: A gyratory crusher includes a frame, a bonnet, a gyratory crusher head, supported by the frame and being spaced relative to the bonnet such that a crushing chamber is formed therebetween, and a hydraulic channel formed integrally within the frame. First and second hydraulic cylinders are attached to the frame and support the bonnet on the frame, and the first and second hydraulic cylinders are connected to the hydraulic channel so as to be in hydraulic communication therewith. First and second hydraulic accumulators are supported by the frame and are in hydraulic communication with the hydraulic channel and the hydraulic cylinders. The hydraulic accumulators and the hydraulic channel are arranged to allow uncrushable material to automatically pass through the crushing chamber.

Abstract: An improved wood pulverizer is provided with a rotating disc studded with a plurality of curved tapered hammers. One or more anvils is secured to the pulverizer with the anvil having teeth and slots located adjacent the surface of the disc. The hammers of the rotating disc pass through the slots of the anvils as the disc rotates to tear and shard wood into bits and pieces for subsequent use or processing. The anvils of the present invention are formed with two or more useable surfaces so that the anvils can be removed, rotated, and replaced to present fresh cutting surfaces to the disc. Further, the anvils are formed by a series of bolted together anvil segments to allow replacement of only single segments in the event of damage.

Abstract: A double screen (42) including a cylindrical screen (18) and a conical screen (23) is attached to an upper casing (3) into which a revolution shaft (11) is inserted and is provided with a supply opening (2). A rotary blade 12 is arranged within an annular space (15) having a nearly V-shaped section between the cylindrical screen (18) and the conical screen (23) so as to rotate keeping a desired gap relative to the respective screen surfaces. Since the annular space (15) having the nearly V-shaped section is spaced apart from the revolution shaft (11), the rotary blade (12) rotates at a high circumferential speed even in the bottom portion of the annular space (15).

Abstract: A gyratory crusher includes a flexible dust seal having an outer edge attached to a cone head of the crusher and to an outer of a ball-bearing seal, an inner race of which is attached to a mounting arrangement for rotationally mounting an eccentric member about a crusher axis with a pair of taper bearings and for rotationally mounting the cone head about a cone head axis offset from the crusher axis. The cone head is also mounted on a plurality of hydrostatic bearings. A mantel of the crusher is attached to the cone head by a removable cap nut and mantel stud. The crusher includes a self-contained lubricating system and a hydraulic tramp iron relief system with connections contained internally within structure of a lower frame portion of the crusher. The crusher includes a drive gear centered about the crusher axis and attached directly to the eccentric member.

Abstract: An anvil for a wood chipper includes an anvil body having a top surface, a bottom surface, and longitudinally extending side surfaces between the top and bottom surfaces. At least one of the side surfaces is adapted to accept an insert shaped and dimensioned to fit into the adapted side surface of the body. Means within the body for firmly holding the insert in contact with the adapted side surface are also provided. The insert presents a leading edge functioning as the anvil's leading edge.

Abstract: The structure of this invention involves a driving device for rotating a concave support, an input detection device for detecting a variation of electric current to a driving motor of the driving device, a rotation detection device for detecting the number of revolutions of the concave support, an operation display device for processing a signal from the rotation detection device on the basis of a conversion program to operate a moving amount of the concave support to store and display it, and a backpressure detection device for detecting a variation of backpressure of a static pressure type thrust bearing of a main shaft, the input detection device, the operation display device and the backpressure detection device are connected to a control device of the driving device.

Abstract: An improved wood pulverizer is provided with a rotating disc studded with a plurality of curved tapered hammers. One or more anvils is secured to the pulverizer with the anvil having teeth and slots located adjacent the surface of the disc. The hammers of the rotating disc pass through the slots of the anvils as the disc rotates to tear and shard wood into bits and pieces for subsequent use or processing. The anvils of the present invention are formed with two or more useable surfaces so that the anvils can be removed, rotated, and replaced to present fresh cutting surfaces to the disc. Further, the anvils are formed by a series of bolted together anvil segments to allow replacement of only single segments in the event of damage.

Abstract: A grain mill includes upper and lower supports defining a chamber. An upper mill stone is disposed in the chamber and affixed to the upper support. A lower mill stone is disposed in the chamber beneath the upper mill stone and is driven about a vertical axis of rotation. The upper support cannot rotate relative to the lower support, but can move vertically relative thereto to adjust a grinding gap between the mill stones. Adjustment of the upper support is achieved by a rotatable adjusting ring having right and left-handed screw threads which engage respective threads of the upper and lower supports. The upper support comprises a cover member which carries the upper mill stone and a cover ring which is threadedly connected to the adjustment ring. The cover member is removable from the cover ring while the cover ring remains attached to the adjustment ring.

Abstract: Apparatus for adjusting a conical concave crushing bowl of a gyrasphere crasher relative to a conical convex crashing head of the gyrasphere crasher includes a plurality of lugs connected to the conical concave crashing bowl; a bushing i) connected to the conical convex crashing head and ii) defining a bushing axis; and ii) defining a bushing axis a swivel bracket i) circumscribing an elongated trans cylinder release stud ii) defining a swivel axis that is coaxial with the bushing axis iii) adjacent the elongated bushing and iv) freely radially repositionable with regard to the swivel axis; and a tensioner having a proximal end attached to the swivel bracket and a distal end removably attached to one of the plurality of lugs. A method of adjusting the conical concave crashing bowl relative to the conical convex crashing head includes shortening the tensioner so as to rotate the conical concave crashing bowl relative to the conical convex crushing head.

Abstract: A gyrasphere crusher includes a crusher frame, a crushing head, and a crusher bowl which is selectively locked to and released from the crusher frame via operation of a bowl lock assembly including a clamping ring or locknut and an inflatable bladder device. The bladder device, which preferably is formed from a plurality of discrete bladder segments mounted on an axial end of the locknut, applies sufficient clamping forces to the locknut when it is fully inflated to prevent rotation of the locknut and bowl, and can be partially deflated to permit precisely controlled rotation of the bowl and thus adjustment of the crushing gap under load. The bladder operated bowl lock assembly is simple, reliable, and operates at a fraction of the pressures typically required for conventional mechanically applied/fluid-pressure released lock assemblies.

Abstract: A continuous dispersing apparatus in which stirring vanes in a vessel disperse pulverizing media, wherein mill base containing coarse pigment particles is prevented from being discharged. The apparatus includes a vessel for containing pulverizing media with a supply inlet and a discharge outlet being formed at respective ends of the vessel, a rotating disc mounted on a rotating shaft passing through the vessel, and a partition defining a gap which prevents the passage of the pulverizing media while passing dispersed material, the partition dividing the vessel into a plurality of chambers. Each chamber is provided with at least one stirring device mounted on the rotating shaft. The partition includes a rotating disc releasably fixed to the rotating shaft and a ring-shaped plate releasably fixed to the vessel.

Abstract: A size reduction machine for use in process industries to continuously and precisely reduce the size of particles, while controlling fines, has a rotatable spindle and a motor operably connected to the spindle for effecting rotation of the spindle. The spindle is mounted within a channel having an input and an output.

Abstract: The invention is a tool support for a waste processor comprising a plurality of rotating discs on which can be mounted a combination of chipper knives, swing hammers, and hog hammers. The tool support has an incline surface on which the chipper knives and hog hammers are removably mounted in a position so that a portion of the chipper knives and the hog hammers extend beyond the periphery of the discs. During rotation of the discs, if the chipper knives or hog hammers encounter an object that cannot be chipped or broken, the chipper knife and hog hammer, respectively, are forced down the mounting surface of the tool holder to a position below the periphery of the discs so that the chipper knives and hog hammers are protected from further damage by the circumference of the disc.

Abstract: A vertical shaft impact crusher including a housing, a vertical rotating shaft (11) rotatably provided in the housing and rotated at a high speed, a rotor (10) provided on the upper end of the vertical rotating shaft (11) to discharge centrifugally an object of crushing, which is cast into the housing, to the outer periphery thereof, and an anvil support frame (60) disposed in the housing to surround the outer periphery of the rotor (10) and provided with anvils (18) for collision with the object of crushing discharged from the rotor (10). The anvil support frame (60) is movable up and down in a direction parallel to the central axis of the vertical rotating shaft (11).

Abstract: At least one core hole is provided adjacent an edge of a rock crusher component and removably receives a connector capable of attachment to a lifting line. In one embodiment, the connector is a bolt and the core hole has an enlarged portion for receiving a nut in a non-rotating fit. The nut receives a set screw plug when the bolt is removed. In another embodiment a hook and eye member is employed and the hook portion thereof engages the enlarged portion of the core hole. The connector includes a bracket that connects it with a lift line.

Abstract: A wear adjustable shredder having spaced apart, parallel rotating shafts, series of interleaved and overlapping cutter disks carried on the shafts, and an adjustable cutter disk assembly carried endmost on one of the shafts, the adjustable cutter disk assembly having an inner adjusting ring and an outer cutting ring with the cutting ring threaded on the adjusting ring. The cutting ring may be rotated with respect to the adjusting ring such that the ring moves axially toward or away from the cutter disks to adjust the spacing of the cutter disks.

Abstract: A rotor which is to be used in an impact crusher has a set of coaxial discs with radially inwardly extending peripheral recesses for elongated beater bars which are parallel to the rotor axis and each of which extends into a discrete recess of each disc. The beater bars have male or female detent elements which cooperate with complementary female or male detent elements of the discs at the rear sides of the beater bars to prevent radially outward movements of the beater bars in actual use of the rotor. The front sides of the beater bars are engaged by wedges which are biased radially outwardly against the beater bars and against the respective discs by fluid-operated thrust elements in the recesses of the discs. Each thrust element has a piston rod which bears against the respective wedge and urges the wedge radially outwardly in the respective recess, and each thrust element reacts against an elongated rail which is installed in the deepmost portions of a set of aligned recesses of the discs.

Abstract: At least one core hole is provided adjacent an edge of a rock crusher component and removably receives a connector capable of attachment to a lifting line. In one embodiment, the connector is a bolt and the core hole has an enlarged portion for receiving a nut in a non-rotating fit. The nut receives a set screw plug when the bolt is removed. In another embodiment a hook and eye member is employed and the hook portion thereof engages the enlarged portion of the core hole. The connector includes a bracket that connects it with a lift line.

Abstract: Apparatus for shearing waste material such as a discarded vehicle tire including parallel first and second rotatable shafts, each having an alternating pattern of driving rings and split sharpenable shear members along the length thereof. The driving rings and the shear members all abut the circumference of the associated shaft. The driving rings are keyed to the shafts and the shearing members are fixed to the driving rings. The shearing members of each shaft are axially aligned with the driving rings of the other shaft and are in meshing relation with the shearing members of the other shaft. The optimal edge-to-edge dimension of the shearing members is maintained after material reduction from the edges by insertion of a shim between the blades that comprise the split shearing members. After each periodic sharpening of the shear members, additional shim are added between the blades or the existing shims are replaced with larger shims.

Abstract: An apparatus for forming wood shavings from wood stock includes a rotatable cutting roll for engaging and cutting wood shavings from a wood stock advanced by a feed mechanism along a predetermined path of travel to the roll. A rotatable roll of the feed mechanism has peripheral teeth that engage the wood stock and control its advancement along the path of travel. The teeth are inclined rearwardly relative to the direction of rotation of the roll so that the teeth have a negative rake angle. An anvil is positioned adjacent the end of the path of travel and closely adjacent the cutting roll for restricting advancement past the cutting roll of pieces of wood stock other than the shavings.

Abstract: A poultry pulverizer comprises a portable framework with a vertically oriented hopper secured thereto having an open top end and a lower end. A horizontally disposed shear wheel is positioned at the lower end of the hopper where it forms a bottom wall. The shear wheel has a downwardly extending vertical shaft journaled to the framework for rotation by a motivator that rotates the shaft and in turn the shear wheel. At least one cutter blade mounted on an upper surface of the shear wheel has a slightly raised cutting edge. A stationary anvil bar connected to and extending across the lower end of the hopper has an adjustable height slightly above the cutting edge of the cutter blade whereby poultry introduced into the hopper through the open top end drops by gravity to the lower end where it is pulverized by the shearing action of the rotating cutter blade and the stationary anvil bar. The pulverized poultry is discharged from the hopper through an opening in the shear wheel located adjacent to the cutter blade.

Abstract: A document shredder comprises a pair of cutter assemblies, each having a shaft on which there are cutter disks with interspersed spacers. The disks overlap to form a nip. On the one shaft, additionally, there are rings mounted in the spacers, and that permits the shaft to be axially compressed tighter than the shaft without rings. This provides for relative flexibility and axial movement between the shafts such that foreign objects can more easily be removed. A 20 inch cutter assembly driven by a single phase motor through a planetary gear system is provided.

Abstract: A bowl support ring for a gyratory rock crusher has an annular inwardly directed threaded surface extending in an upright direction. A bowl having an outwardly directed threaded surface is engageable with the threaded surface on the bowl support ring for supporting the bowl on the support ring and for rotatably adjusting it to different vertical planes. A locking ring threadedly engaged with the bowl above the support ring is connected to downwardly extending hydraulic cylinders secured to the main frame of the crusher. These cylinders are arranged to apply a hold-down force on the locking ring which in turn provides a hold-down force acting through the threads of the locking ring and bowl to maintain the bowl in a stationary vertical position and also to frictionally lock the threads of the locking ring and bowl together to maintain the bowl in a non-rotatable position. A plurality of retainer pins with adjustable thrust portions maintain the locking ring in proper spaced relation from the support ring.

Abstract: A comminuter for metal turnings has a rotor rotatable on a support about a fixed axis and carrying at least one outer rotor element and at least one inner rotor element which define a cylindrical orbit on rotation of the rotor. A housing surrounds this rotor and is formed by a U-shaped upwardly open portion of non-tapering cross-sectional shape and a flat cover part engageable over the open upper side and openable in order to clear a jam in the machine. Stator elements carried on this housing are spaced slightly from the rotor element so that as the rotor turns turnings fed to the machine will be comminuted and passed from an inlet to an outlet end.

Abstract: An adjusting device (74) is fixedly and rotatably mounted in axial longitudinal direction on a shaft coupling (22) while being at the same time connected with a disk (24) via an adjustment means (92, 94). Both the shaft coupling (22) and the disk (24) are each in engagement with a shredding or slicing tool (28, 80, 82, 84) via an elongated toothed member (42, 44 and 50, 52) cooperating therewith. The shredding or slicing tool (28, 80, 82, 84) bears against the drive shaft (18) in axial direction and is held in a fixed position relative to the drive shaft (18).

Abstract: This invention discloses a rock, stone or other solid material crushing device. It consists of a crushing chamber, a rotator shaft running through the chamber, an outer cutting blade secured to the chamber, a set of outer cutting bars which are secured to a disk which is secured to and rotates with the rotator shaft and acts as a mechanism for breaking apart the solid material to be crushed. Within the rotational arc of the outer cutting bars is a pair of inner cutting blades. Inside of the inner cutting blades and attached to the rotator shaft disk is a second set of cutting bars, i.e. the inner cutting bars. The inner cutting blades are secured to the outside of the crushing chamber and intrude into the crushing chamber such that the outer cutting bars rotate outside of the pair of inner cutting blades and the inner cutting bars rotate inside the inner cutting blades.

Abstract: Device for the selective or simultaneous traverse of the cutting members in a machine for the chopping and/or cutting of material in sheet, supported by supporting and slip beams, comprising:two bar-formed elements, mechanically interconnected, each parallel to the respective supporting and slip beams;a motor which drives the rotation of at least one of said elements;means of transformation of the rotating movement of the bar-shaped elements in rectilinear traverse movement of each cutting member; andmeans of energization and de-energization of said means of transformation.

Abstract: A screw mill, for example, used for producing fine powder grains of calcium carbonate used as a bulking agent for paper. According to the screw mill of the present invention, the combination of the continuous screw and discontinuous vanes makes it possible to efficiently grind both slurry and dry materials without causing clogging of the mill. Also the clearance between the hub and the rotor can be finely adjusted by the screw type adjustor. This makes it possible to easily adjust the grain size and to produce ground materials having the spheroidicity of 0.3-0.03 which is best suited for use as a bulking agent for paper.

Abstract: The invention relates to a jaw crusher wherein shims behind a toggle beam define various positions of its fore-and-aft adjustment along way slots in which its end portions are guided, and wherein the toggle beam is shifted forwardly away from the shims and rearwardly towards them by a pair of hydraulic rams, each connected between the housing and an end of the toggle beam. At each end the toggle beam has a forwardly-downwardly inclined surface slidingly overlain by a wedging member that cooperates with the upper surface of the adjacent way slot to wedgingly prevent forward shifting of the toggle beam and confine it against the lower surfaces of the way slots. Each ram has link connections with the toggle beam and with a wedging member whereby the latter is pulled forward out of wedging relationship before the toggle beam is shifted forward and is pushed back to wedging condition after the toggle beam engages the shims.

Abstract: A wood and stump chipper having a rotational chipper disc with protruding blade means for chipping wood advanced thereto; a support trough for wood; a ram for advancing wood along the support trough to the disc; power means for shifting said ram from a position spaced from said disc to a position adjacent said disc and return; and an anvil positionable adjacent the disc for cooperation therewith in chipping wood; the anvil being shiftable in a support between an extended position adjacent the disc and a retracted position away from the disc in a dimension transverse to the dimension of ram movement so as to move out of the path of the ram; and power means for shifting the anvil adjacent the disc when the ram is spaced from the disc and for shifting the anvil away from the disc and out of the path of the ram when the ram approaches the disc.

Abstract: A shearbar attachment and adjustment apparatus is adapted to apply clamping forces to a shearbar in a forage harvester at first locations on opposite ends of the shearbar. The clamping forces prevent the shearbar from backing away from a rotary cutterhead in the forage harvester during chopping of crop material by passing cutting edges of knives on the periphery of the cutterhead close to the cutting edge of the shearbar. Also, the apparatus is adjustable to apply pulling forces on the shearbar at second locations on its opposite ends which are offset inwardly from the first locations. Application of pulling forces at these inward locations relative to the outward locations of the clamping forces tends to compensate for the effect of the convex shape of the shearbar cutting edge by causing bowing of the shearbar at the second locations to provide a more uniform clearance between the cutting edge of the shearbar and the cutting edges of the cutterhead knives.

Abstract: In a chopper, at least one cutter rotates about an axis moving over a retaining wall of a chopper housing and past an opposing knife edge located at the inlet opening into the chopper. The opposing knife edge is adjustably supported on a support relative to the plane or circle of revolution of the cutter. An adjustment device actuatable at a location exterior of the chopper housing effects the adjustment of the opposing knife edge when a locking device is released. The locking device includes a clamping device for pressing the opposite ends of the opposing cutting edge against the support. A force accumulator provides an elastic force for maintaining the clamping action. The locking device also includes a releasing device acting against the force accumulator for releasing the clamping action.

Abstract: A disc crusher has a base frame on which a case with cover is mounted. A bottom disc seated in a bearing housing is fastened to the cover of the case. A cone is mounted in a bearing body fastened to the cover by shock absorbing springs. The bottom disc and cone each have a central hole. In one embodiment, the bearing housing is connected by a flange, stud bolts and springs to a top ring with flange and a bottom ring with flange, also fastened by means of stud bolts to the cover of the case, which rings have external threads formed with opposite pitch directions and are embraced externally by a regulating sleeve (nut) on the internal cylindrical surface of which there are threaded zones which correspond to the threads of the top and bottom rings. The regulating sleeve (nut) is provided on the outside with a guiding disc connected to a driving mechanism and an arresting mechanism.

Abstract: A device for the fastening of hammers in axially extending cutouts of rebound-mill rotors having a form-locked attachment between each hammer and one side of the corresponding cutout and a force-locked attachment on the other side by means of at least one wedge-shaped clamping ledge which can be acted on in clamping direction by a plurality of pressure elements each of which has a clamping piston acted on by a pressure medium and which are connected to each other by a common pressure conduit which can be closed by a valve. The clamping pistons are arranged in the clamping ledge and are connected by the pressure conduit which debouches in at least one end surface of the clamping ledge and is filled with a flowable, plastic, compressible pressure medium which, in order to obtain excess pressure, can be acted on by a setting piston which is developed on a closure screw which can be screwed into the mouth of the pressure conduit.