Abstract: A characteristic feature of the proposed device for preparing fibre-filled polymeric compositions having a fibre-chopping mechanism within a blender chamber and formed by a stationary plate with a draw-nozzle having a sharpened lip and by a rotary cutter adjacent to said plate, both the cutter and the sharpened lip establishing the chopping zone for the fibre passing through the draw nozzle. The cutter, while rotating, produces a vortex-type turbulent air flow, wherein the chopped fibre is intermixed with the polymer. The draw-nozzle communicates with the intake pipe for the fibre to feed through the draw-nozzle to the chopping zone.

Abstract: An apparatus for reducing fiber material to chip form including an anvil assembly defining an anvil bearing surface of generally U-shaped configuration having leg portions joined by a connecting portion, at least one knife blade and carrier means for moving the knife blade in surface-to-surface bearing engagement with the anvil bearing surface in a direction extending from adjacent the ends of the leg portions towards the connecting portion to effect cutting or severing of the material into chip form.

Abstract: Material conditioning apparatus particularly suited for disjoining compacted asbestos comprising a closed system in which material on a loading platform is manually fed into a delivery chute, directed by the chute to an agitating zone, and released upon adequate agitation through an outlet. Escape of airborne particulate matter from the system is avoided by delivery of material in a path generally tangential to an area of retreating blade movement, and control of air pressure and flow by means of an air inlet vent in the delivery chute.

Abstract: A leaf collector and comminutor is disclosed having a collection receptacle in the form of a bag and a housing for delivery of comminuted tree leaves into the bag, the housing having thereon a motor driven rotary blade assembly, having a fan portion and a leaf comminuting portion resiliently mounted on the fan portion, for the suction collection and comminution of the leaves to reduce their bulk and for delivery of the disintegrated leaves into the bag, a spring held shearing bar being provided with openings for passage of end portions of the blades, the mounting of the leaf comminuting portion of the blade and the mounting of the shearing bar providing safety features in the event that sticks or stones enter the housing.

Abstract: A beater mill comprising a cylindrical housing which accomodates a rotor carrying at least two arcuately spaced groups of beaters, the beaters from group to group being axially offset, the cylindrical jacket of the housing being formed as a peripheral sectional screen, an axial inlet for material to be milled being provided adjacent the rotor axis, the rotor arms being formed as fan blades and the said inlet including a distributor means for the air and material taken in through the inlet.

Abstract: Disintegrator and separator apparatus and method, having a pulverizing chamber with a rotary impeller therein for imparting acceleration to raw material received through an inlet. The impeller includes a pair of spaced apart discs having a plurality of blades connected between the discs at their outer edge, with a drive shaft connected to only one of the discs, leaving the middle of the pulverizing compartment open. A peripheral impact surface in the pulverizing chamber has a portion of its inside wall facing radially inwardly and aligned in the direction of rotation of the blades. One embodiment includes a plurality of overlapping peripheral impact blades which include an outlet passage between each pair of adjacent plates; a second embodiment includes a peripheral impact ring having outlet slots therethrough; and a third embodiment includes a peripheral impact ring having a concave inner surface, with outlet passages adjacent both sides thereof around the circumference of the ring.

Abstract: A combination tub comminuting apparatus and blower for simplifying and reducing the number of moving parts in a forage comminuting means. The comminuting portion comprises rotor means which rotates on a radius of the tub and is situated in an opening extending from near the edge of the tub to a point which is near the center of the tub. Since the forage is fed to the end of the cylinder described by the rotor rather than to the sides as in normal comminuting means, the length of the cylinder is very short compared to the diameter. The beating means grab the forage and pull it into the enclosure in pieces. Some embodiments of the concept include teeth on the stator enclosure for the rotor to provide further comminution before the rotor executes its final step of forcefully discharging the comminuted forage, via the beating means, in a blower-type action.

Abstract: A vacuum blower-type mobile unit for shredding leaves and other garden debris. The unit comprises a pair of coaxially disposed rotors operated at respectively different speeds, the blades of the two rotors being separated by a minimum practical axial clearance to provide shredding action. Shredding is further enhanced by stationary radial blades fixed to the casing adjacent the input to the slow speed rotor, and a circular plate formed to include a large number of exit guide vanes including fixed blades disposed adjacent the output from the high speed rotor. The speed differential between the rotors and the shapes of the blades cooperate to create between them a high velocity axial stream of air and debris which moves smoothly through the machine, depositing the product in comminuted form in a bag or other container.

Abstract: A fan for a forage harvesting system. The fan has paddles each having a propelling surface enlarged radially and in a front-to-rear direction for propelling air and forage. Spaced triangular shredder blades are mounted not only across the outer end of each paddle, but also aligned along the leading edge of each paddle. The leading edge shredder blades all slant towards the rear of their paddle and radially outwardly along their paddle and assist in chopping forage to varied lengths as forage passes over them.

Abstract: The cutting cylinder has knife segments extending across its periphery in a staggered pattern so that each row winds essentially helically from end to end of the cylinder, thereby providing an effective shearing action as the knife segments cooperate with a stationary shear bar to sever incoming crops into countless short lengths. Air and crop cups located directly below the knife segments capture the short lengths before they can enter the interior of the cylinder and sweep the same through the cutting chamber, blasting them out the discharge spout without the assistance of an auxiliary fan. By keeping the elongated cups substantially parallel to the axis of rotation of the cylinder and perpendicular to the path of travel of the entering crops, regardless of whether the cutting edges of the knife segments are arranged parallel to or slightly oblique to the axis of the cylinder, the full thrust of the spinning cylinder is utilized to propel the crop pieces up the spout for maximum efficiency.

Abstract: A hopper has an adjustable opening into a tube that leads to the interior of a drum-shaped housing containing a grinding impeller that also functions simultaneously as a screw-type fan and as a paddle-type fan, formed to maximize air turbulence at the grinding edges thereof and to separate finely ground material from the coarser particles continuously. The grinding impeller is operated by a motor attached to the outside of the drum-shaped, grinder housing. The impeller is adjustable relative to a dam that partially surrounds a discharge port in one end of the housing. The dam intercepts air from the vortex created by the impeller, to promote flow of material through the discharge port. A tube leads from the discharge port to a separating device above a drawer having a partition therein, so that the coarse material may be dropped into one compartment and the fine material into the other.

Abstract: A centrifugal mill for disintegrating fibrous material is provided with a cylindrical grinding track in front of a conical grinding track. The grinding tracks are corrugated and are adapted to cooperate with rotary grinding blades. The corrugation of the cylindrical track is coarse compared to that of the conical grinding track. The charging port of the mill is arranged at the larger cone diameter and the discharging port for the ground stock is arranged at the smaller cone diameter. Means are provided for conducting a controlled air flow from the larger cone diameter to the smaller one through regular spaces between the rotary grinding blades in the peripheral direction thereof.

Abstract: A material reducer for coal, lignite, ore, stone, rock, oil shale and the like which employs rotary hammers, bars or the like not only to crush the material but also to propel the crushed material upwardly along a confined or partially confined path which discharges for example onto an output conveyor or directly to a screen or other processing equipment. The feed-in or input end of the crusher can be at a level sufficiently low to be supplied by the newer more mobile loading units such as front-end loaders, over-the-head loaders, and others. The center of gravity can also be substantially lowered, providing more stability without the normal cumbersome frame and support structure.

Abstract: A material reducer for coal, lignite, ore, stone, rock, oil shale and the like which employs rotary hammers, bars or the like not only to crush the material but also to propel the crushed material upwardly along a confined or partially confined path or discharge chute which empties onto an output conveyor, a screen or other processing equipment. The chute is provided with means to reduce or eliminate clogging at the discharge port from the reducer. The input end of the reducer can be at a level sufficiently low to be supplied by mobile loading units such as front-end loaders, over-the-head loaders, and others. The center of gravity can also be substantially lowered, providing more stability without the normal cumbersome frame and support structure.