Abstract: A dual function paper shredder includes a housing having first and second paper inlets, and an interior chamber. A strip forming cutter and a shredding cutter are received inside the chamber and are adapted for cutting paper sheets. The strip forming cutter and the shredding cutter are driven by a driving unit which includes a motor and a gear mechanism. A safety cover is pivotally mounted on the housing for turning between a first position for covering one of the first and second paper inlets, and a second position for covering the other one of the first and second paper inlets.

Abstract: A shredding apparatus is described which comprises at least one module of a pair of counter-rotating cutting assemblies located in spaced apart parallel relationship wherein each assembly comprises a driving shaft upon which is mounted one or more cutters. The cutters are provided with a pair of cutting surfaces or edges which are located at either end of the cutter. In the one module the cutting surfaces of adjacent cutters mounted on adjacent shafts are in contact with each other over at least a part of the circumference of the cutting surfaces so that when the cutters counter-rotate, material fed between them is cut by the action of the counter rotating cutters. An anti-wrap member is associated with a driving shaft to prevent material being cut from wrapping around the shaft or cutter.

Abstract: An apparatus for crushing sugar cane to extract the juice has opposed crushing rolls at least one of which is formed with juice channels which are temporarily plugged by bagasse after the juice has entered into the channel. Further rotation of the rolls removes the trapped juice away from the cane blanket and the bagasse plug is then scraped out of the top of the channel to allow the juice to drain. The juice is drained away from the cane blanket and is not reabsorbed thereby. Efficiency of juice removal is improved. Further efficiency improvements are obtained by having pairs of crushing rolls positioned above each other such that the cane blanket moves in a generally vertical direction.

Abstract: A rotor shear for comminuting particularly bulky waste materials is formed by two cutting rotors (2) combing each other, disposed parallel to each other, supported in a housing (1), and each driven in an opposite direction. Each cutting rotor (2) comprises spacer rings (4) and rotor disks (5) furnished with cutting teeth (6). A face of a front flank (61) of at least one cutting tooth (6) is furnished with geometrically staggered and/or angled partial faces (65). The spacer rings (4) and the rotor disks (5) are disposed on shafts (3). Wear disks (7) are coordinated to outer rotor disks (5) with corresponding circumferences and are connected to the shaft (3). The cutting teeth (6) operate against the circumference of the spacer rings (4) disposed between the rotor disks (5). At least one support device/stripper device (8) is coordinated with at least one shaft (3), where support parts (81) and stripper parts (82) of the support device/stripper device (8) are functionally separated.

Abstract: A machine (1) is serving the purpose of comminution for example domestic garbage, refrigerators, tires, furniture, carpets, mattresses, stubs, demolition timber and similar materials. The machine has a funnel (2) for accommodating the waste, a cutting table (4) placed at the bottom of the funnel with at least one set of fixed, parallel lower knives (9a,b) which mutually are separated by openings (10a,b) through the table, at least one rotatable axle (5a,b) of a drive unit (7) which axle is placed above the cutting table into a direction, which extends perpendicular to the lower knives, and a number of disc-shaped upper knives (8a,b) fixed to the axle, each of which knives is provided with a number of teeth (13a,b) and partly extends down into each their opening of the table. The lower knives are running into a direction, which intersects the axis (18) of the axle or an area around this. Thereby it is obtained that the teeth of the upper knives will have angle of action of about 90.degree.

Abstract: The present invention provides document shredding devices mountable on various waste receptacles for shredding paper. The document shredding devices have a housing defining a paper shredding passageway. A paper shredding mechanism is contained within the housing and extends into the paper shredding passageway. A mounting support adjustably extends from a waste receptacle mounting side of the housing while remaining housing sides are free of waste receptacle mounting supports. The mounting support has a position retracted into the housing which defines a substantially linear mounting channel and another position extended outward from the housing which defines a nonlinear mounting channel.

Abstract: A multiaxes roll type of crusher comprises four rolls. The four rolls respectively have teeth for directly crushing materials. There would be virtually 6 pairs of rolls in mathematically. There are really at least three relations given for crushing. Raw materials are crushed with a first crushing-relation to be of smaller size. Such crushed materials are secondly crushed with a second crushing-relation and a third crushing-relation to be of still smaller size. The first roll and the second roll can rotate in reversely opposite directions. The third roll and the fourth roll can rotate in reversely opposite directions. The reverse rotations cancel the crushing-relations. The flow of the crushed materials are controlled by a flow controlling means, which opens and closes the path between the third roll and the fourth roll. The opened flow controlling means does not obstruct the flow of foreign materials between the third roll and the fourth roll.

Abstract: A paper feeding sensor mounted in the paper shredder is composed of a microswitch and a detection rod capable of triggering the microswitch so as to actuate two cutters of the paper shredder. The detection rod is received in a receiving cell of the paper guiding grid plate of the paper shredder such that the detection rod is pushed to trigger the microswitch by a paper which is fed into the receiving cell of the paper guiding grid plate.

Abstract: A forage harvester is equipped with a milling arrangement or kernel processor comprising a pair of rolls which are mounted on parallel axes and adapted for being counter-rotated so as to operate on chopped crop products introduced into the nip of the rolls. The rolls each have an outer circumference defined by larger and smaller diameter sections arranged one after the other along the length of the roll. In one embodiment the larger diameter sections of one roll are located in an annular groove defined between the larger diameter sections of the other roll, these sections being opposite to the smaller diameter sections of the other roll. The overlap between the large diameter sections of the rolls defines shear faces at opposite sides of the sections for cutting crop parts into smaller pieces.

Abstract: An automatic paper shredder is capable of sequentially cutting up to 20 sheets of 20-lb bond paper, up to 9 inches wide. The device has adjustable holders for attachment to conventional wastebaskets of varying shapes. A feed tray holds the stack of paper. Upon selection of either manual (ON) or automatic (AUTO) operation of the machine, a single sheet of paper is fed into the machine by a roller as are subsequent sheets, if any. With the three-way switch set to AUTO, any sheets on the tray are detected by a sensor and are automatically fed into the machine for shredding. A plug-in motor contained in the housing of the machine drives a plurality of shafts for the feed roller and knife rollers. The knife rollers are configured to either shred the paper into about 3/8-inch wide strips or to cross-cut the paper into a plurality of smaller pieces.

Abstract: A shredder having a housing with a first wall and a second wall spaced from the first wall, and a support with a first cradle extending from the first wall and a second cradle opposing the first cradle and extending from the second wall. The shredder also has a motor associated with and disposed between the first and second cradles. Also, the support may have a first cradled rib extending from the first wall and a second cradled rib opposing the first cradled rib and extending from the second wall. The shredder may also have a gear shaft with an end associated with and disposed between the first and second cradled ribs.

Abstract: A cutting cylinder for a paper shredder has a shaft with a first end and a second end. A plurality of spaced-apart cutter discs are arranged on the shaft between the first and second ends of the shaft. Each cutter disc has an inner surface defining an inner diameter. In addition, the shaft has a first outer surface lining the inner surface of at least one cutter disc, and a second outer surface adjacent to at least one cutter disc. The second outer surface has an outer diameter greater than the inner diameter of the adjacent cutter disc.

Abstract: As the stripper (20) for the cutting mechanism (13) of a document or paper shredder (11) is provided a plastic part, which can be injection moulded in one piece and entirely surrounds the shaft (18) of the cutting rollers (15) in the gap (17) between the cutting disks (16). In the overlap area (23) between the two cutting disks is provided a thin, flexible stripper web (24), which makes it possible to open the separation point (36) of the stripper separated with respect to the flexible circumferential portion (24) to such an extent that it can be snapped over the shaft (18). The stripper can be manufactured as a single component or as a stripper block with several to all the strippers of a cutting roller. This leads to a low friction stripper preventing cut particles winding round the shaft.

Abstract: A shredder has a cutting cylinder with a cutting shaft and a plurality of spaced-apart cutter disks mounted on the cutting shaft. The shredder also has an articulated top blocker rotatably mounted above the center axis of the cutting shaft.

Abstract: A stalk puller and chopper assembly 10 drawn behind a tractor 11, the stalk puller and chopper assembly comprising a puller means in the form of a pair of contra-rotating rubber wheels 12 and 13 on a shaft 21. The wheels are located upstream of a feeder means comprising a pair of guide plates 14 and 15 and an array of toothed feeder blades 16 mounted on a feeder shaft 17. The guide plates co-operate with the wheels and the rotating feeder blades 16 to deliver stalks extracted by the wheels to a downstream chopper assembly 19 where chopper blades 18 on shaft 22 shred the stalks which are then discharged rearwardly at 20 in the form of mulch. As can be seen the stalks are controllably delivered sideways into the choppers. The clearance between the cutter blades 18 and the anvils of the toothed feeder blades is exaggerated in the drawings with the usual clearance being about 2 mm.

Abstract: A document shredder (11) has a cutting mechanism (12) constructed as a chassis and in which the cutting rollers (16) are mounted so as to contrarotate. They are designed as disks cutting on both sides for particle cutting. Over the entire length of the cutting rollers (16) extend stripper elements (28, 29), whose individual strippers (31) are combined into a block by means of longitudinally directed connecting elements (33). As they engage by more than 180.degree., almost 270.degree., around the shaft cross-section (18), two stripper elements (28, 29) are connected in mutually fitting manner in the circumferential direction. The stripper elements can be made in one piece from injection moulded plastic and are also used for the connection of the two side walls (14, 15) of the cutting mechanism (12).

Abstract: An improved continuous crumbing machine for recycling rubber tires and other materials such as polyethylene containers, gypsum, hardboard, tin cans, glass jars and bottles. The device comprises a pair of rotating rolls having negative rake teeth of interlocking sprocket design formed on the outer periphery of each roll. The materials to be fragmented or crumbed are fed between pairs of rotating rollers having negative rake teeth. A plurality of stages of rotating rollers are placed in series to obtain the desired particle size.

Abstract: Disclosed is an improved structure for a paper shredder in a waste paper disposer formed of one piece design composed of a hanging portion, and a shredder body with a plurality of scrapping elements and guiding slots. The structure is divided in two parts, provided respectively at the front and rear sides of a cutter assembly. During operation of the paper shredder, the paper shreds are removed from the cutter assembly by the scrapping elements of the shredder body thereby preventing the paper scraps from sticking on the cutter surfaces. Paper scraps sticking on the cutter blades are removed by barrier tips on the upper ends of the guide slots. When the paper shredder is reversely revolved, the remaining paper shreds on the cutter are removed by the barrier tails formed at the bottom portion of the shredder and the guide slots.

Abstract: A mill for reducing solid material into smaller pieces including a hammer member oriented for rotation and having a plurality of hammer pins coupled to the hammer member for fragmenting solid material. A cutting member is oriented for rotation and having a plurality of blades for cutting solid material. The hammer member is positioned proximate to the cutting member so that solid material processed through the mill is broken into smaller pieces. The hammer member has a plurality of blades that are positioned, one each between adjacent hammer pins. The hammer member has a longitudinal axis about which the hammer member rotates. The cutting member has a longitudinal axis about which the cutting member rotates. The hammer member and the cutting member each having substantially cylindrical peripheries; and each of the peripheries includes a plurality of circumferentially aligned ridges and recesses.

Abstract: A blade shoe for use with a shear shredder comprises a block of hardened metallic material having a top surface, a bottom surface, a pair of opposing side surfaces, a front surface and a rear surface, where the top surface and opposing side surfaces meet at sharp angles, and where the top surface includes rows of saw-tooth shaped teeth projecting therefrom. Preferably the rows of saw-tooth shaped teeth extend laterally across the top surface and intersect with the pair of opposing side surfaces, so as to create a corresponding pair of substantially serrated edges at the intersections of the top surface and the opposing side surfaces. Accordingly, the saw-tooth shaped teeth substantially increase the lineal length of the opposing pair of cutting edges, affording substantially longer life for the blade shoe.

Abstract: A collecting container for collecting cut material of paper shredders or similar comminuting devices in which the cutting mechanism of the paper shredder rests with its housing on a box-like or frame-like base frame having a fixed bottom, and wherein the container can be pushed into the base frame from the front side of the paper shredder underneath the cutting mechanism housing. The container and the base frame have at the bottom thereof positively engageable guide elements.

Abstract: An apparatus for comminuting solid waste material comprises a frame having an enclosure with an entrance for initially receiving solid waste material; a set of overlapping scissor rolls rotatably mounted within the enclosure for shearing the waste material into subdivided pieces when the material passes between the scissor rolls; a feed roll rotatably carried by the frame for directing the waste material to the scissor rolls; and a separator screen carried by the frame in association with the at least one of the scissor rolls and having a plurality of apertures of a predetermined size for separating pieces having a size less than the predetermined size to pass therethrough to a shear outtake manifold for separation while preventing large subdivided pieces having a size greater than the predetermined size from passing therethrough.

Abstract: A paper shredder, particularly a small paper shredder, includes a shell-like lower housing part which includes the cutting rollers with their bearing plates at the end faces and the stripping elements, and an upper housing part which is provided with a material inlet slot and can be placed on the lower housing part. The bearing plate on the drive side for the cutting rollers simultaneously forms the single-piece bottom of an also shell-like gear housing which can be closed by means of a cover. The entire cutting mechanism including gear housing, cutting rollers and stripping elements is mounted in the area of the bearing plates on the end faces through vibration-damping elements in the lower housing part.

Abstract: An adjustable chopper shaft is disclosed including a chopper shaft (14), a gear (18) concentrically mounted on the chopper shaft, the gear being accomodated in a gearbox (40). A setup (30, 32) for selectively allowing rotation of the chopper shaft relative to the gear are provided and this setup for selectively allowing rotation of the chopper shaft relative to the gear is located externally of the gearbox.

Abstract: The present invention relates to a crusher capable of efficiently crushing chunks of concrete or masonry waste, which crusher is attached to a crusher body such as a bucket which is disposed at a distal end of a movable arm or other predetermined place of a civil engineering machine, into small pieces. A pair of toothed crushing plates each having a plurality of radially extending teeth are attached to eccentric shafts mounted on the crusher body.

Abstract: Disclosed is a paper feed structure for paper shredders and more particularly a paper feed structure having a paper bearing device and paper feed adjustment device. The paper feed structure includes oblique paper bearing plate disposed above wheel cutters of the paper shredder, a paper feed adjustment device, an infrared shielded switch having the function of actuating the paper shredder, a paper feed roller, and slidable plates. Paper need not be fed one by one into the paper shredder manually, and the paper feed amount is adjustable. A pile of paper can be placed on the paper bearing device and the paper is automatically fed into the paper shredder one by one.

Abstract: An improved apparatus for comminuting solid waste material into small pieces having a size less than a predetermined size is disclosed. A set of overlapping scissor rolls are rotatably mounted within an enclosure for shearing the waste material into subdivided pieces when the material passes between the scissor rolls. An entrance for receiving the material has: (1) a shear intake manifold communicating with the entrance for receiving the solid waste material upstream of the scissor rolls and directing the waste material to the scissor rolls, and (2) a shear outtake manifold downstream of the scissor rolls for receiving the subdivided waste material pieces from the scissor rolls after the material has passed between the scissor rolls. A feed roll is carried by the frame for feeding the waste material into the shear intake manifold at a desired line speed and directing the waste material to the scissor rolls. A separator screen separates large and small subdivided pieces.

Abstract: A desktop paper shredder including a housing in which a pair of shafts are rotationally mounted. The housing is provided with an entrance that corresponds to and is aligned with the shafts. A paper trash container is removably disposed at the lower portion of the housing. The shafts are driven by a driving device and meshed with each other such that their rotations are opposite to each other. Each shaft is further provided with a spiral groove in which a plurality of sets of shredding blades are disposed therein. Each of the sets of shredding blades is spaced from the next set of shredding blades by a spacing collar on which is provided a paper trash stopper. The external end portion of each paper trash stopper is fixedly attached to the configuring tab within the housing. The perimeter of each shredding blade is further provided with a plurality of knives. Each shredding blade is further provided with a projecting tab that rests in a selected spiral groove.

Abstract: A method and apparatus serve to packaging material and its contents, specifically from packaging elements filled with soft material such as food packaging. The method allows a clean separation of the packaging and content materials so that, according to the application, each of these materials can be reused individually with substantially no further preparation. The apparatus comprises a combination of a coarse cutter in the form of a shredder and a soft separator working on the drum and pressing belt principle with a further fine cutter or fragmenter in the form of a blower mill arranged downstream of these. By coarsely cutting the packaging materials prior to compression, cavities in which amounts of contents material may remain trapped cannot be formed, the soft separator can thus operate more effectively to cleanly separate the two materials.

Abstract: A housing including a support arm arrangement for a basket mounted paper shredder wherein the support arms have curved or rounded outside perimeters and at least one of the support arms has a curved or rounded inside support rib arrangement to more closely conform to a rounded waste paper basket. The support arm arrangement allows the paper shredder to be mounted to both round and rectangular waste paper baskets. The housing also provides a streamlined shape including a tapered generally triangular motor wiring compartment.

Abstract: A solid waste comminuting apparatus (10) for reducing solid waste material (12). The apparatus (10) has rolls (42, 44) for severing material that is fed into the entrance (32). After the material is severed, it is carried by an airstream to a fan (112). The subdivided pieces are directed to a separator screen (131) mounted within the centrifugal housing. The airstream carries the small pieces (14e) through the separator screen (131) into an outer volute chamber (135) for discharge from the apparatus. The large pieces (14a-14d) which do not pass through the separator screen (131) are recycled through a recycle outlet (143) and a recycle conduit (150) back to the rolls (42, 44) for further size reduction.

Abstract: An integrated unitary comminuting system adapted for wastewater channel use is provided with devices which include a stationary single or dual semi-cylindrical-like sizing and sweeping screen member each having a rotating sweeping mechanism of interactive slotted comb bars or blades with tynes or teeth, so as to sweep and clear lodged or agglomerated solids adhering to the outer circumference surface of the semi-cylindrical-like screen member, disposed in spaced apart contiguous parallel relationship with a twin shaft shredder device having two parallel shafts with shredder or grinder teeth along the length thereof that rotate in opposite senses. The unitary system of devices may be positioned perpendicular between the influent and effluent side of the wastewater flow in a channel so that solids therein will encounter the semi-cylindrical-like sizing and sweeping screen members or the twin shaft shredder as the wastewater flows through the channel.

Abstract: A support placed in the cutting path of a multicylinder cutting assembly to prevent the shafts of the cutting cylinders from separating. In the preferred embodiment, the support comprises a base and two arm members extending upward from the base. The invention also includes a shredder comprising at least two cylinders; a plurality of cutting disks arranged on the cylinders; spacers alternatingly arranged on the cylinders between the cutting disks; and at least one support placed under the cylinders for preventing the cylinders from separating.

Abstract: A support integral with a housing for a paper shredder having a plurality of cutting cylinders with cutting shafts. The support has at least one rib extending outward from at least one wall of the housing toward the cutting shafts of the cutting cylinders.

Abstract: A suspension arrangement for rotatable feed worms of food cutting apparatus and knives mounted thereon for rotation thereby. The feed worms are provided with coaxially extending bearing pins which are mounted for resiliently biased movement in a coaxial recess of the worms and which are journaled in bearings provided in a cutting disk. Releasable means are provided for moving the cutting disk relative to the bearing pin and knife mounted thereon.

Abstract: A cutting cylinder for a paper shredder has a shaft with a first end and a second end. A plurality of spaced-apart cutter discs are arranged on the shaft between the first and second ends of the shaft. Each cutter disc has an inner surface defining an inner diameter. In addition, the shaft has a first outer surface lining the inner surface of at least one cutter disc, and a second outer surface adjacent to at least one cutter disc. The second outer surface has an outer diameter greater than the inner diameter of the adjacent cutter disc.

Abstract: An apparatus for processing used belts and bands of a machine for printing sheet elements comprises an accumulation bin having an upper portion for receiving the belts and bands from a supply arrangement and a lower portion provided with a grinder for grinding the belts and bands into small pieces. The grinder is automatically placed in operation intermittently under the control of a control arrangement, and the output of the grinder either discharges directly into a transport receptacle for the waste or into an evacuation pipe which conveys the waste to a transport receptacle at a remote location.

Abstract: A modular shear shredder having at least one shear cartridge having a shaft which carries a plurality of cutter elements mounted within a shredder housing having a support frame, opposing end walls attached to the frame, and side walls removably attached to the frame, the side walls being shaped such that removal of the one of the side walls permits the shear cartridge inserted and removed from the shredder housing. Consequently, there is no need to remove the end walls of the housing, or otherwise dismantle the unit to remove the shear cartridge. The removable side walls each support a plurality of comb elements which mesh with the cutter elements on the shear cartridge. Each shear cartridge within the shredder includes a pair of end caps removably attached to the ends of the shaft. The caps are shaped to be attached either to support bearings or drive motor output shafts.

Abstract: A shredding machine includes a machine housing having a top wall formed with an inlet, a cutting device disposed in the housing adjacent to the inlet, and a contact-type control switch assembly mounted on the top wall of the housing and connected electrically to the cutting device. The control switch assembly includes a multi-position slide switch with a slider, and a contact switch. The top wall of the housing is formed with an access hole having a front portion adjacent to the inlet and aligned with the contact switch, and a rear portion distant from the inlet and aligned with the slide switch. A switch actuator unit includes a slider actuator that is mounted slidably in the rear portion of the access hole and that engages the slider, and a contact arm actuator connected to the slider actuator and disposed in the front portion of the access hole.

Abstract: A volume reduction machine for crushing beverage containers has a pair of feed rolls and a pair of crusher rolls. The feed rolls in spaced relationship to a feed plate, urge containers to be crushed, while puncturing them. The feed rolls comprise a plurality of spaced feed discs and are aligned to overlap to ensure self cleaning. The crusher rolls comprise a plurality of closely-spaced discs. Spaces between discs slightly exceeding the thickness of the disc. The crusher rolls are offset such that the discs of one roll align with the spaces between discs of the other roll. The crusher rolls have an adjustable gap and are aligned with a lower edge of the feed plate. The discs forming the crusher rolls include circumferential notches of a given size and shape to deform plastic beverage containers beyond their modulus of elasticity thereby overcoming the problem of such containers springing back after crushing. An oscillating horizontal bar provides a debridging dejamming feature to the machine.

Abstract: A macerator (32), e.g. for sewerage, including two stacks of interleaved contra-rotating cutters and spacers is mounted in a macerator chamber (30) having an inlet (60) and an outlet (62). The chamber (32) has a sump (80) upstream of the stacks of the cutters, which are mounted at such an angle that hard, solid material such as stones and metal fall under gravity through the influent into the sump.

Abstract: Paired, coacting, albeit non-contacting rollers have interfitting collars or rings, and tapered rims, which are rotatably driven in opposite directions. Paper fed therebetween is torn asunder, and freely discharged therefrom. The rings cooperate together to force the paper to be torn lengthwise thereof, and the rims crease the resulting strips to insure that they do not remain lodged between the rings. An embodiment has helical rings or collars which cause the paper to be dismembered into diagonally-shaped, fine fragments.

Abstract: A shredder comprising a frame, at least two rotatable shafts supported in parallel by the frame, a plurality of cutting blades, each of the blades including a mount which is fixed to one of the shafts and has an outer peripheral side, and a number of tip pieces, each tip piece being fixed to the peripheral side of the mount, and a plurality of spacers mounted on each of the shafts alternately with the blades such that the spacers on each of the shafts are radially aligned with the blades on the other shaft.

Abstract: Fiberglass filament hulls are cut to form fiberglass staple fibers with an apparatus comprising a cutting roller with a plurality of equally spaced, circular, diamond coated cutting blades separated by circular spacers having a diameter less than the diameter of the cutting blades; a circumferentially grooved pressure roller positioned parallel to the cutting roller and forming a nip therewith, with the periphery of the blades extending in non-engaging relation into the grooves; and a conveyor for flattening and conveying the hulls into the nip of the cutting and pressure rollers with the hull filaments being oriented substantially transverse to the blades while the cutting roller is rotated at a significantly greater speed than the pressure roller, whereby the hull filaments are held against the cutting roller by the pressure roller, and cut into staple fiber lengths by the blades.

Abstract: A cylindrical cutting disk for use in a shredder having a plurality of circumferentially spaced teeth, each tooth having a tapered and angled cutting edge. In a preferred embodiment, the disk includes a spacer located on one side of the disk, the spacer having a smooth outer surface and an inner lining coextensive with the lining of the central aperture of the disk. A plurality of disks may be mounted on a cutting cylinder. The disk can be made by sintering.

Abstract: A waste debarker 10 comprises a housing 12 in which is mounted a rotatable first cutting drum 14 and a rotatable second cutting drum 16 arranged in a longitudinally spaced relationship with respect to the first drum 14. The first drum 14 has a plurality of circumferentially extending flanges 24 spaced along the length thereof for supporting cutting teeth 26 thereon. The second drum 16 has a plurality of discrete lugs 34 arranged on its surface for supporting cutting teeth 26 thereon. The lugs 34 are offset with respect to the flanges 24 on the first drum 14 and extend in between the flanges 24 as the drums 14,16 are rotated. The second drum 16 is located at a higher elevation than the first drum 14. A method of debarking waste material is also provided.

Abstract: A modular shear shredder having at least one shear cartridge having a shaft which carries a plurality of cutter elements mounted within a shredder housing having a support frame, opposing end walls attached to the frame, and side walls removably attached to the frame, the side walls being shaped such that removal of the one of the side walls permits the shear cartridge inserted and removed from the shredder housing. Consequently, there is no need to remove the end walls of the housing, or otherwise dismantle the unit to remove the shear cartridge. The removable side walls each support a plurality of comb elements which mesh with the cutter elements on the shear cartridge. Each shear cartridge within the shredder includes a pair of end caps removably attached to the ends of the shaft. The caps are shaped to be attached either o support bearings or drive motor output shafts.

Abstract: A plate for connecting gear shafts in a gear assembly, the plate comprising a rigid body having at least one aperture.

Abstract: A treatment unit for densely compacted sewage sludge having an elongated trough like member with at least one elongated shaft extending throughout its length and rotatably mounted therein. The elongated shaft has a first longitudinal portion with a helix formed thereon. A shear section is located in the trough like member downstream of the first longitudinal portion of the elongated shaft. The shear section includes a static member attached to the inner surface of each sidewall of the trough like member and a rotary component mounted on a second longitudinal portion of the elongated shaft. The rotary component of the shear section includes a pair of half cylinder segments attached to the shaft. Each segment has a first longitudinal section with a plurality of outwardly extending paddles mounted thereon and a second longitudinal section with a plurality of outwardly extending pitched blades mounted thereon. The elongated shaft is rotated by an electric motor mounted on the trough like member.

Abstract: A stripper for use on a cutting cylinder having a shaft. The stripper comprising a unitary, resilient body and an arcuate recess in the mid-portion of the body adapted to surround at least about 180 degrees of the circumference of the shaft of the cylinder.