Intermeshing

An apparatus is disclosed for precision slitting of metallic coil stock into multiple continuous lengths of wire, wherein the resultant wire is characterized by a small cross-sectional area. The apparatus comprises means for guiding coil stock into a pair of revolving monolithic cutter rolls and means...     

A comminution device for the conversion of scraps of plastic into a free-flowing granulated material is provided without having to repeatedly feed the same scrap plastic into the device. The scraps of plastic are cut both longitudinally and transversely with the two types of cuts intersecting each other....     

A lawn mower with two coacting spirals cooperating in a scissors-like manner. This mower is self-sharpening and self-cleaning since a torsional stress urges the coacting spirals together. At least one spiral cutter is mounted on a resilient torsion disc.

A method and apparatus for mold sand conditioning which includes the directing of mold sand between bristles of counterrotating brushes where the bristles are intertwined and the sand is forced into the brushes to be finely divided and aerated upon discharge. The conditioning assembly includes an enclosing...     

An apparatus for comminuting bulky objects, especially vehicle tires and parts of automobile bodies, comprises two parallel shafts arranged for rotation in opposite directions and at different speeds, each shaft being driven by a separate hydraulic motor and provided with comminuting rings alternately...     

A portable solid waste shredder for automatically shredding refuse or waste materials including any kind of wet or dry trash, glass, metal cans, cartons, wood, cardboard and particularly synthetic plastics. The device comprises oppositely rotating pluralities of rotary shredding jaws, accessible through...     

A shredding machine having a housing, a first and a second parallel spaced apart rotatably driven shafts rotatably mounted in the housing at end plates fixedly attached to the housing, driving means in the housing and operably connected to the shafts to drive the shafts counter to each other, a plurality...     

Structure is provided for successively decompacting waste, such as garbage and trash, at a metered rate, weighing the decompacted waste at a metered rate and separating the heavier portions of the waste from the remainder thereof, coarse shredding the remaining waste at a metered rate and in a manner...     

An apparatus for shredding, crushing and grinding solid waste material for eventual waste disposal in which two interacting stacks of shredding members are mounted on substantially parallel shafts and are positioned in transverse arrangement with respect to the direction of waste material introduction...     

A shredding device for paperboard cartons having two vertically spaced rotors provided with teeth around their periphery. The teeth on the two rotors overlap radially. A conveyor is arranged to feed cartons to the shredding rotors and to crush the cartons, if they happen to be oversize, to a predetermined...     

Two pairs of interdigitated rotatable members are arranged at right angles to one another and are connected by a chute leading downwardly away from one of the pairs and transversely to the other of the pairs so that paper can be first cut up into strips and then subsequently recut to form a confetti....     

A shearing or shredding construction incorporating a revolvable shaft that is grooved for the reception of a series of mutually-spaced blades, and wherein keys accurately and positively position such blades, such structure being provided with close tolerance bearings for severely restricting if not eliminating...     

A duplicating arrangement which includes a copying machine for copying an original and an offset printing machine operatively connected to the copying machine for producing prints from a master copy. The copying machine and the offset printing machine are both constructed so as to be independently functional...     

Multiple cutting discs are fixed in spaced-apart positions on each of two side-by-side counterrotating shafts so that peripheral portions of the discs on each shaft extend into the spaces between discs on the opposite shaft. Each disc has a smooth cylindrical peripheral surface which meets opposed sidewalls...     

A method for agglomerating particulate steel mill wastes such as roll scale and coke fines, and for utilizing the agglomerate in a metallurgical furnace. The wastes are mixed with Portland cement and cast into slabs which are thereafter broken and screened to a size which can be charged into a metallurgical...     

There is disclosed herein a mobile material shearing apparatus for receiving solid waste material and reducing said material to a comparatively small size. The apparatus includes an elongated movable truck bed on which is mounted a rotary shear into which the solid waste material is fed for size reduction....     

A crusher including a series of cutter units mounted on a pair of shafts arranged parallel to each other so as to rotate in the opposite directions to each other, wherein each of the cutter units is provided with a holder member which includes a flange portion and a boss portion, and a disc-shaped cutter...     

A document shredder which comprises a strip cutter to cut waste document into strips, a chip cutter to cut the strips into chips, and a minuting device disposed downstream of the chip cutters to cut the chips into pulp-like mass. The minuting device includes a housing having a conical surface formed...     

A shredding device is provided in which counterrotating parallel shafts carry interleaved cutting disks thereon. The rim of each cutting disk is of concave cross section so that cutting blade edges of acute angles are formed at the perimeter of each flat transverse surface of each disk. Also, a plurality...     

A comminuting plant is equipped with a comminuting machine for the coarse comminution of bulky material, and a granulating machine for the fine granulation of the precomminuting material from the comminuting machine. The comminuting machine includes at least two parallel shafts having several rotary...     

A tire disintegrator having rows of abrasive counterrotating wheels between and over which defective tires are passed to be ground into particles or residue for disposal or recycling into new tire products and road resurfacing materials.

A machine intended for comminuting objects which are bulky and/or resistant to destruction comprises two shafts bearing comminutor rings disposed alternatingly along each of the shafts. The rings are formed of separate elements, at least some of which are comminutor elements having comminutor noses....     

A device for comminuting waste material, such as turnings or the like, is provided with two shafts, which are driven in opposite senses of rotation and are parallel to each other and comprise disc-shaped knives, of which the knives of one shaft engage respectively between the knives of the other shaft....     

An improved double-roll crusher is provided which is especially suitable for crushing bones having a relatively low content of soft matter, the crusher being of the general type comprising two parallel rolls, each comprising an assembly of alternating toothed cutting discs and spacers so disposed that...     

An electrically driven desk-top shredder which comprises a housing, a drive motor secured within said housing, and a shredding mechanism driven by said drive motor. The shredding mechanism comprises a pair of rotary shafts driven in mutually opposite directions by said motor, a plurality of rotary disks...     

A document shredder having first and second rotary cutting disks alternatively arranged and held in shredding engagement with one another to shred waste material into strips, first spacer members disposed in first gaps formed between the first rotary cutting disks, and second spacer members disposed...     

A classifying and sorting machine for refuse particles, particularly household refuse and other refuse having a composition resembling household refuse, has a rotatable screen drum the diameter of which is within the range of 1:1-1:2 relative to its axial length. Baffles of sawtooth-shaped configuration...     

Macerator housing has a flange at each end and a flow channel therebetween so that the macerator can be connected into a sewage line for flow therethrough. A pair of power-driven shafts are mounted transversely to the flow direction and each carries a plurality of inter-engaging spaced macerator cutters...     

A grass forage harvester has mowing and/or gathering mechanism whereby cut grass is brought to cutter mechanism comprising a rotor with peripheral cutter blades and to impelling mechanism comprising fan or projector vanes. The said cutter blades are articulated on the rotor and cooperate with at least...     

A fertilization system using the contents of the manure pits on farms to supply the fertilizer. The system comprising a pump for forcing the contents of the manure pits either directly through the irrigation piping system to the fields or for spraying the contents of the pits onto the fields. A unique...     

A shredder includes a pair of blade assemblies operated at high speeds to receive and shred paper material, such as notes or coupons. The blades of the assemblies are disposed to contact and overlap each other. Means are provided to control the amount of overlap and loading of the blades.

Apparatus for the storage of ice which includes a housing for storing pieces of ice. The housing is shaped in the form of a frustum, is interiorly thermally insulated at least on the sidewall and has a top feeding opening and a bottom outlet opening. The scratching-off device is positioned adjacent the...     

A cutter for a rotary shredding machine which includes a disc-like body defining a coaxial shaft aperture therethrough adapted to accommodate a rotary shaft which defines a cutting axis, the body including a plurality of cutter body members and releasable fastening means for holding the body members...     

A rotary shredding machine having a comminuting chamber within which is a pair of parallel cutter shafts arranged for simultaneous contra-rotation and a plurality of cutters secured to each of the shafts, each cutter being a generally disc-like body having at least one radially projecting peripheral...     

In a shredding machine having contra-rotating cutter shafts (16,17) carrying cutters (18), one shaft (16) is at a lower level than the other and the side of the shredding chamber (12) alongside the lower shaft has an ejection chute (71) for intractable material. The chute is normally closed by an access...     

The invention concerns a document shredding machine of the kind comprising two cutter assemblies, each assembly comprising a drive shaft upon which cutter discs are mounted at spaced intervals, the assemblies being mounted so that the discs of one assembly enter into the gaps between the discs of the...     

A cutting device for cutting deleaved and cored heads of cauliflower into predetermined smaller sizes comprises a cleated conveyor for conveying the cored cauliflower heads, a first series of circular knives equally spaced and transversely positioned along the conveyed path of the cauliflower, a first...     

A feed roller for a sugar crushing mill said roller having a central shaft from which radially extend a plurality of discs which are co-axially mounted on the shaft, a plurality of teeth formed on each disc, and a plurality of annular spacers co-axial with the shaft and holding the discs in a longitudinally...     

A material shredder (20) includes a cutting chamber (40) having a pair of counterrotatable cutter units (42, 44) for shredding material fed therebetween. A hopper (30) leads to the cutting chamber for directing material to be shredded thereto. A gate structure (130) includes a barrier plate (138) movable...     

A document shredding machine comprising a cutter assembly including cutter discs mounted separately in two rows on respective shafts for rotation in opposite directions about respective parallel axes, the discs of one row being arranged to enter gaps between the discs of the other row, wherein each disc...     

A flattener for beverage cans is disclosed. The flattener comprises a rotating drum and a series of roller assemblies mounted in a converging arc with respect to the drum to provide a progressively decreasing nip between the roller assemblies and the drum between which the cans may be flattened.

Rotary shredding apparatus for processing materials of various sorts in which the hydraulic drive for the counterrotating cutter shafts comprises a reversible hydraulic motor supplied with pressure fluid under the directional control of a fluid flow reversing valve. The flow reversing valve is controlled...     

An apparatus for shredding paper by passing the paper or document between a pair of shredding rollers comprising a plurality of spaced cutters characterized by a backup arrangement for at least one of the rollers to prevent bending of the roller and jamming during a shredding operation. The backup arrangement...     

A method and apparatus are provided to cut sheet material into quadrilateral pieces. The sheet material first is slit lengthwise into ribbons; then a swing assembly lays the ribbons onto a cutting bed, where circular knives cut them transversely into quadrilateral pieces. The swing assembly has a fixed...     

An image forming apparatus, such as copier, is capable of changing the feed path of original documents according to the imaging mode for achieving efficient original feeding. The apparatus is provided with indicators for indicating the inserting position for the original documents according to the imaging...     

A paper shredder is arranged with a pair of cutting and tearing roller members mounted on bearing members which include semicylindrical recesses within which the roller members are engaged, a pair of support arms which extend from the roller members in the intake direction of the material to be shredded...     

A paper-shredding machine has a sleeve mounted for limited movement towards and away from a surface of a housing of the machine to define an inlet opening, through which paper can be fed to cutters disposed within the housing. The sleeve normally occupies a position in which the inlet opening is closed...     

A shredding apparatus is disclosed, which comprises rotary cutting disks and back plates. The rotary cutting disks each have peripheral edges serving as blades. The rotary cutting disks serve to shred sheets in the direction in which they are withdrawn. The rotary cutting disks each have large tooth...     

A sheet breaking apparatus for breaking or cutting waste sheet materials according to the invention comprising a pair of endless band-like rotating body, one of which is driven downwardly or in a feeding direction of the sheet materials at a faster speed than that of the other rotating body driven upwardly...     

A runner chopper comprising in combination a driving device, a main shaft (1) that rotates slowly by the action of the driving device, several rotary blades (2) fitted around the main shaft with some distances therebetween, and the same number of fixed blades (3) as the rotary blades (2) which are fixed...     

A solid waste comminution machine having two pair of cutting wheels, one above the other. The upper pair is mounted on opposed lever arms which are movable relative to the lower wheel pair such that the upper wheel pair can exert leverage on solid waste between wheel members forcing the solid waste material...     

An apparatus for and a method of extraction reinforcements from reinforced cable is described. The apparatus comprises gears between which the reinforcement is engaged and pulled from the remaining cable, the gears also serving to impart a deformation to the reinforcement. A subsequent engagement between...     

A roll crusher for discarded storage batteries or other types of bulky scrap has two rotors provided with axially spaced-apart annuli of teeth which cooperate with rows of teeth provided on a grate normally adjacent to the undersides of the rotors. The grate is pivotable about an axis which is closely...     

An automatic compactor enhancement reduces the volume of compactable low-level radioactive wastes and transfers the reduced wastes to a nearby waste compactor. The wastes are shredded by a primary shredder assembly and a secondary shredder assembly. The system employs a pressure-controlled enclosure...     

A machine is capable of cutting into pieces disposable containers such as plastic bottles and metal cans. A first cutting section includes a pair of parallel shafts mounted for rotation in opposite directions. Each of the shafts supports a plurality of cutting wheels keyed for rotation therewith. The...     

An apparatus for comminuting waste material such as waste plastic sheet material, into progressively smaller pieces until a desired size is reached that may be recycled. The apparatus has a set of slowly rotating, intermeshing scissor rolls for receiving the waste material and shearing the material into...     

A waste material shredder having a pair of counter-rotating cutter rollers with mutually meshing cutter disks mounted thereon, and fixed spacer members separating the cutter disks. Sheets of waste material are shredded into small chips by the action of sharp protruding teeth on the cutter disks which...     

A cutting apparatus for cutting objects into minute pieces with high exactitude and high precision comprises, as an integral unit, a pair of cutter shafts disposed substantially in parallel to each other, a motor attached to one of the cutter shafts, gears for rotating the other cutter shaft in a direction...     

A document shredder comprising the combination of a pair of counter-rotating rolls forming integral cutting discs interleaved with each other for cutting documents fed between the rolls into multiple strips, the discs also having cutting edges extending longitudinally of the rolls for cutting the multiple...     

A double-drum wood chipper for obtaining wood chips of uniform thickness from logs. Each one of a pair of oppositely rotating, hollow, open ended drums is provided with cutting knives. An aperture through the drum walls is located near each knife for reception of the wood chips. Two knife patterns on...     

A document shredding machine comprises cutting mechanism comprising two shafts, each mounted for rotation about a respective parallel axis, and cutting discs mounted at spaced intervals on each shaft, the two sets of cuttings discs intermeshing and the shafts being rotated in opposite directions so as...     

A rotary shredding apparatus having in combination counterrotating cutter supporting shafts operated by a reversible fluid pressure driven motor, and a fluid flow circuit connected to the reversible motor and including a pump supplied source of fluid at a predetermined nominal operating flow rate, a...     

A rotary shearing/cutting machine, capable of comminuting article of many diverse materials and widely varying dimensional characteristics (i.e., plastic barrels and other containers, plastic and metal films, rubber tires, etc.) has four rotary driven shafts extending across a comminution chamber in...     

A machine is capable of cutting into pieces a plurality of diposable containers such as plastic bottles and metal cans. The machine includes a loading section, a cutting section and a collecting section. The cutting section includes a pair of parallel shafts mounted for rotation in opposite directions....     

A mineral breaker having at least one breaker drum, the drum including a generally cylindrical support body from which a plurality of radially extending projections project by a distance equal to at least half the radius of the body, each projection being covered by a tooth sheath to define a breaker...     

The crusher of the present invention is for crushing metal blocks obtained by compressing abandoned cars and metal scraps, where the inside of the casing having a discharge opening is equipped with pressing rolls in the upper part, a crushing roll arranged in the middle below the pressing rolls and a...     

A tire shredder. A housing has a vertical passage therein leading to a series of transversely disposed cutter wheels on adjacent parallel shafts. The shafts are rotated at different speeds, such as at 28 r.p.m. for one shaft and 34 r.p.m. for the other. The cutter wheels have flat side walls that partially...     

In a cutting mechanism for a document shredder a pair of cutting rollers are disposed in side-by-side relation with disk-shaped circular cutters spaced apart on the rollers. Adjacent circular cutters form annular grooves between them so that the circular cutters on one roller extend into the annular...     

A mineral breaker including at least one breaker drum carrying a plurality of breaker teeth projecting radially therefrom, at least one breaker tooth comprising a tooth core projecting radially outwardly of the drum and having leading and trailing faces, an open sided tooth sheath including a leading...     

A mineral breaker including at least one breaker drum having breaker teeth projecting radially therefrom, the teeth being arranged so as to define a series of discrete circumferentially spaced helical formations extending along the drum.

A shredder including a storage device for placing a number of documents to be shredded, a separate transport device for transporting the documents at least one sheet by one sheet, a transport preventing device for preventing transport of an unsuitable document incapable of being shredded by the shredder,...     

A shredding machine includes a pair of juxtaposed cutting rollers for shredding paper material, a movable paper feed tray for supporting the paper material to be shredded on it, a paper feed tray drive motor capable of moving the paper feed tray between lowered and elevated positions, a paper feed mechanism...     

A paper feeding system of a paper shredder comprises a paper set block provided in the shredder main body; a paper feed opening formed at the end of the paper set block on the side of the shredding cutter; a paper transport device for sending papers automatically through the paper feed opening to the...     

A grooved knife roller for paper shredders. The knife roller has helically extending grooves, wherein the lagging side of each groove in the direction of rotation of the roller and the circumferential surface of the roller include an acute angle to form a hook-like sharp point facing in circumferential...     

A shredder having a hopper for funneling material to the cutting blades of the shredder is provided with a ram assist within the hopper to push material into the cutting blades. The ram is shielded from the material passing through the hopper by an intermediate partial wall extending from the infeed...     

A new machine for shredding a scrap material such as waste paper, cutter disks for particular use in shredding machine and a method of making cutter disks are disclosed. The life of the cutter disks is markedly increased and the performance of the shredding machine is improved by spark-depositing a wear-resistant...     

A crop conditioner for crimping cut crops to enhance rapid drying. The conditioner includes two crimper roller members mounted to a frame. One roller member is radially movable with respect to the other and has a constant bias toward the stationary roller when under load. The conditioner includes a drive...     

There is disclosed for use in a machine for shredding scrap automotive tires or the like of the type comprising a pair of oppositely rotating rotors having interdigitated tire cutting discs keyed thereon and replaceable abrasion resistant wearing plates at opposite sides of said disc, an improved means...     

A portable pocket size paper shredder housing having a paper entrance slot on the front end with an enclosed trough leading to a pair of shredding rollers and an exit slot on the back end. A first shredding roller comprising a circular drive shaft covered with a compressible, fractional material. The...     

In a high-speed sorter, single documents such as banknotes are successively withdrawn from a stack and tested according to various criteria. Banknotes which are authentic but no longer fit for circulation are fed to a cutting means a shredder and destroyed therein. The shredder, which has a simple construction...     

A crusher comprises first and second rotating crusher bodies installed on two rotatably supported shafts spaced apart from each other, and having crusher blades provided on their outer peripheries. A first compression board is positioned at one side of both of the crusher bodies, forming a crushing passage...     

A system for destroying sheets, particularly banknotes, comprises a first feed system (13) for feeding sheets at a first feed speed to sheet destruction apparatus, a second feed system (2) upstream of the first system (13) for feeding sheets at a second feed speed faster than the first feed speed, and...     

In a shredding machine, oppositely rotating cutter shafts (11a, 11b) are driven by an electric motor (E) through an epicyclic gear mechanism (G) comprising a casing (17) with an internal gear formation (52) and a planet carrier (31) carrying planet gears (34) in mesh with the internal gear formation...     

A machine is capable of cutting into small pieces the thin wall material of a plurality of disposable containers such as plastic bottles or metal cans fed in a first direction one at a time to a cutting section. The cutting section includes a pair of parallel shafts mounted for rotation in opposite directions...     

A shredder for shredding or comminuting trash, waste material and the like in a waste recycling system which includes a hopper having a pair of spaced rotatable shafts with shredding elements thereon forming the bottom portion of the hopper with the shafts being independently driven at a relatively slow...     

A beverage container crusher adapted to receive for crushing beverage containers holding liquids, the beverage container crusher having an upper feed hopper to receive a plurality of beverage containers, the beverage containers directed to a pair of synchronized, counter-rotating crushing drums. The...     

The invention is directed to a document shredder (1) driven by an electric motor (2), with a stepdown gear train (4, 5, 7, 8) arranged between the drive and the cutting mechanism (9). Hitherto these appliances were powered by AC motors, which operate already relatively slow cutting speed when shredding...     

A shredding device uses a plurality of interleaving, counter-rotating discs to reduce sheets of material into longitudinal strips. One or more notches, formed in the periphery of each disc, cut the longitudinal strips into segments. Deflectors disposed in the spaces between each disc clear unwanted material...     

An apparatus for improving the pulping characteristics of wood chips in which a pair of closely operating rolls are provided for supplying compressive force to chips passed therebetween, at least one roll having an aggressively contoured surface for causing chips to crack in the thickness dimension of...     

A shredder for feeding documents from a document loading portion to a document shredding portion so as to shred the documents by the document shredding portion, in which the document loading portion is constituted by a plurality of document loading apertures such that a total quantity of the documents...     

Three parallel hydraulically driven shafts are mounted on a pair of bearing plates attached to the side plates of a housing containing a comminution chamber for receipt of waste water effluent. The waste water effluent stream enters the comminution chamber transverse to the three shafts. Two shafts support...     

A shredding machine is for shredding paper or the like and includes a pair of parallel, spaced-apart shafts which rotate in opposite directions. Each of the shafts includes a plurality of cutting discs mounted thereon for rotation therewith. The cutting discs on one shaft extend between the cutting discs...     

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...     

A document shredder for destroying a generally rectangular document and having feed rollers for engaging a marginal portion of a document and simultaneously spirally coiling the document into a generally cylindrical form while advancing the document in an axial direction. A rotary shredding mechanism...     

A material debagging apparatus includes a receptacle movable between upright loading and inverted dumping positions. The receptacle defines a bagged material holding chamber with a closed bottom and an open top. A rupturing mechanism in the form of a pair of generally parallel drums having circumferential...     

A shredding machine has a rotary cutter and a fixed cutter. The rotary cutter includes a cutter part with a spiral cutting edge and a flute, and a column part for rotatably holding by a holding member for rotation of the rotary cutter. The fixed cutter has a cutting edge contacting with the cutter part...     

An apparatus for grinding hypodermic syringes or needles, IV needles and other medical waste into relatively fine particles. The apparatus includes a housing having a case therein defining an inlet and an outlet. A plurality of rotors are disposed in the case, and each of the rotors has a plurality of...     

Apparatus for crushing, grinding and shredding solid waste material in which two interacting stacks of cutting and shredding elements are positioned on two substantially parallel shafts and mounted transversely with respect to the directions of waste material fed into the apparatus. Cutting members on...     

A cutter for a shredder comprising a cutter blade formed by a plurality of rotation blades disposed and spaced parallel to each other on a shaft, and a cylinder made of a resilient material having on the circumference thereof a plurality of annular grooves which are inserted by the blades when those...     

A shredding mechanism having a continuous stripper to strip shredded material from the cutting surface of the shredding mechanism and having a bearing support for rotatably carrying the shafts of cutting cylinders. The stripper consists of upper teeth integrally formed on the inside surface of a top...