Abstract: The invention relates to a crusher for crushing solid material the crusher comprising a frame; at least one crusher rotor arranged rotatably to the frame and having crusher blades secured to the circumference thereof a yielding counterblade structure arranged for cooperation with the crusher blades of the rotor for concurrently crushing and cutting said material and for yielding when encountering non-crushable material and when overloaded and a yielding and downwardly openable set of screens below the crusher rotor, whereby the counterblade structure is linked to the frame of the set of screens and made turnable towards it with respect for the pivoting shaft in a yield situation; and the set of screens is linked to the crusher frame on the opposite side of the crusher rotor with respect to the counterblade structure and its pivoting shaft and made downwardly collapsible about the pivoting shaft of the set of screens.

Abstract: A grinding machine having an improved anvil mounting arrangement is provided. The mounting arrangement according to the present disclosure is configured to securely support an end of the feed table and an anvil, and also enables easy replacement of the anvil.

Abstract: The invention relates to a device for shredding plastic objects ?(2)!, provided with a spiral-shaped housing ?(3)! in which a carrier member ?(4)! is rotatably mounted. The housing ?(3)! has an opening ?(8)! arranged in its upper surface ?(5)! for feeding objects ?(2)! for shredding and an opening ?(9)! arranged in its side surface ?(7)! for discharging shredded material ?(10)!. The discharge opening ?(9)! is herein bounded by a cutting edge ?(11)! and the carrier member ?(4)! has a number of anvils ?(12)! co-acting with the cutting edge ?(11)!.

Abstract: Rubber scrap is pulverized by feeding it into a gap between a parti-cylindrical recess in a block and a cylinder rotating in the recess. A plurality of blocks are mounted one above another in a first frame, and a like plurality of cylinders are mounted in a second frame. The blocks are so arranged that rubber scrap pulverized in the recess of one block is fed into the recess of the next lower block for further pulverizing. All of the cylinders are driven in rotation by a single motor through a belt or chain drive. A hydraulic cylinder piston unit is provided for raising the first frame relative to the second frame and thereby varying the gaps between the cylinders and the respective recesses of the blocks.

Abstract: A machine for reducing worn-out vehicle tires to small chip-like particles comprises a frame on which an elongated shaft is journaled for rotation, the shaft having a first and second plurality of rotary cutting blades, each of a different diameter affixed to the shaft so as to be rotatable therewith. Also affixed to the frame is a set of stationary cutter bars whose sharpened edges are disposed within a predetermined close tolerance to the periphery of the rotary cutting blades. A large, massive flywheel is attached to one end of the shaft and is driven by a suitable motor. Surrounding the rotary cutting blades is a shroud which, in turn, suppots an infeed hopper having a spiked drum journaled therein.

Abstract: The present invention pertains to a system and a method for recovering salvageable ferrous and non-ferrous materials from incinerated waste materials including friable, carbonaceous incineration byproducts such as ash and associated ferrous and non-ferrous metal components. The system includes at least one crushing means for selectively comminuting friable material comprised of a rotating roll having at least one protrusion, preferably a weld extending transversely to the direction of rotation of roll, on its exterior cylindrical surfaces in spaced relation to a backing plate. The backing plate is urged toward the roll by a bias means exerted a preferably adjustable pressure sufficient to comminute the friable carbonaceous material to a desired size, and insufficient so as to permit the backing plate to retract and allow passage of ferrous and non-ferrous components in the waste material through the crushing means substantially uncomminuted.

Abstract: A shredder having a stationary comb cutter and primary and secondary cutters on the rotor providing "punch and die" shearing action suitable for shredding wallboard or the like. Means for metering the incoming feed through a pair of nip rollers, the upper set of which is spaced inboard such that they do not press on the side edges of the wallboard as it passes through the nip.

Abstract: Method for the manufacture of flakes from chips and apparatus for carrying out the method. The worn, in use, blade portions of a strip-steel knife are exchanged continuously or periodically with sharp strip-steel knives during the flake manufacturing operation. The feed of the strip-steel knives is preferably time-dependent and/or dependent on the energy consumption of the apparatus. Disposed longitudinally of the knife-ring are one or several magazines for supplying or/and receiving the strip-steel knives.

Abstract: A blade ring for a shaver, consisting of blade units disposed in succession in ring configuration, within which a rotor rotates, urging the chips against the cutting blades. The blade units usually constitute a conical envelope, with a similar conical rotor within. The distance between the rotor and the blades is in means of prior art adjusted by shifting the rotor in axial direction, but this is difficult and requires complicated equipment. The blade ring of the invention is characterized in that each blade unit may be turned about an axis close to the cutting blade and parallelling the blade edge, for adjustment of the thickness of the shavings. By the aid of the invention, the thickness of the shavings can be regulated by simple adjustments.

Abstract: Method and apparatus for the manufacture of chips from mineral, vegetable or embrittled materials. In the method the stationary wear plates and striking plates when worn from use are replaced during ball mill operation either continuously or periodically, either with or without pressure plates for the striking bars, and with different feeding speeds. The advance, or feeding, of these plates occurs in a time-dependent and/or energy consumption dependent manner. The apparatus includes a conventional beater mill equipped with a vertical or horizontal rotating beater wheel which has arranged on one or both sides of the stationary crushing path several magazines for storing wear plates and striking bars. The replacement of the wear plates and the striking bars is done by suitably constructed slide members.

Abstract: Apparatus is disclosed for the heat treatment of thermoplastics containing industrial and domestic refuse, as well as plastics waste. The refuse or waste is previously comminuted to a size capable of being treated in the process, then fed into the apparatus which is a crushing roller press. The press has a rotatably driven roll in a machine body, the machine body and the roll forming a converging infeed gap and two crushing gaps along the circumference of the roll. Just before a charging hopper there is a discharge opening provided with an adjustable scraper.

Abstract: A rotary tub grinder in which a substantially cylindrical tub member is rotated relative to a stationary floor member. Material in the tub grinder is moved over the upper surface of the floor member and a portion of it is moved up a ramp into the path of a rotating hammermill. A stabilizer member is positioned on the floor member across the opening from the ramp member and serves to steady the material so that the hammers of the hammermill can uniformly feed material downwardly into the grinder. The stabilizer member extends higher above the floor member than the ramp member and the path of the rotating hammers extends higher above the floor member than the stabilizer member. A layer of material is planed off as it moves about the tub grinder. The ramp member and stabilizer member also serve to help prevent material from falling into and clogging the grinder when the tub grinder is shut down or slowed down by a power governor.