Abstract: A pressing apparatus in a manner of a cage-type screw press, wherein the strainer cage is split up into a plurality of strainer-cage segments. The strainer-cage segments can be sealed along their adjacent sides with the aid of sealing devices so that liquids and solids are effectively prevented from escaping from the gaps between the strainer-cage segments.

Abstract: A juice pressing machine and methods for pressing juice from a foodstuff includes embodiments having a removable pressing chamber and one or more filters which may be assembled and loaded with macerated foodstuff to form thin layers separated by a pressing plate. Once a juicing operation has been completed, the pressing chamber can be removed from the machine for emptying the pressed filters and solids contents therein. The empty pressing chamber may then be rinsed if needed and reattached to the machine for a subsequent pressing operation with newly filled filter(s). The platen may also be easily removed from the machine for cleaning as desired.

Abstract: A press cage bar for a device for expressing liquids, which is bounded by at least one pressing edge in the area of a wear surface of a hard layer and which, in the area of at least one lateral face of the body of the cage bar, has at least one spacer that is raised above the lateral face. The spacer is formed as a deposit weld on the lateral face of the cage bar and is provided with a certain bottom clearance from the underside of the cage bar, which is on the opposite side of the cage bar from the wear surface. The spacer extends along the lateral face no farther than to the hard layer. The extent of the spacer transversely to a longitudinal axis of the lateral face is greater than its extent in the direction of the longitudinal axis of the lateral face. The spacer has increasing thickness perpendicular to the lateral face in a direction extending from the hard layer towards the underside of the cage bar.

Abstract: To provide a solid-liquid separator in which a treatment object such as sludge can be transported without clogging, liquid can be efficiently separated from the treatment object, and a maintenance operation can be easily conducted. Movable plates 12 and fixed plates 13 are disposed alternately, two screws 21, 22 are disposed in recess sections 14, 15 formed in the movable plates 12 and fixed plates 13, parts of blade sections 25, 26 of the two screws 21, 22 overlap each other, the two screws 21, 22 are rotary driven, and the liquid is discharged from the gap between the movable plates 12 and fixed plates 13, while the treatment object is being transported. When the movable plates 12 are replaced, the two screws 21, 22 are lifted up and then the movable plates 12 are pulled up and replaced.

Abstract: A sleeve is provided for a mechanical screw press for expressing liquid from liquid-containing grains and seeds. The sleeve of the present invention is formed with drainage apertures located between longitudinally extending runner portions and includes slots formed in the runner portions adjacent to the drainage apertures. With the use of such slots, uniform screen bars can be used throughout the sleeve and main cage of the screw press.

Abstract: A liquid separator apparatus to extract liquid, usually water, from a water-solids mixture. The apparatus includes liquid separator device with a housing with an inlet and an outlet separated by a liquid extraction chamber. The housing sidewalls defining the extraction chamber are porous, and are preferably comprised as a plurality of spaced apart slats. The slats can be movable inwardly and outwardly relative to the housing in order to vary the volume of the extraction chamber. A transfer pipe has an outlet end connected to the inlet of the separator device. The transfer pipe is closed-walled and has an inlet end connectable to a solids material moving apparatus such as a solids pump for movement of a water-solids mixture through the transfer pipe into the liquid separator device. A source of air under pressure such as an air compressor introduces compressed air into a side wall of the transfer pipe to accelerate removal of water from the water-solids mixture.

Abstract: A device for the removal of solids from slurries by continuous compaction in a screen chamber. Pressure of liquid in the chamber causes continuous extrusion of a dewatered solid from an open ended chamber. The walls of the chamber may be constructed from longitudinal wedge bars spaced apart to provide filtering spaces between them. A high pressure pumping arrangement, including a first slurry pump and an auxiliary piston pump, is provided to maintain a high-pressure throughout the chamber to facilitate the continuous extrusion.

Abstract: An apparatus for separating, by pressing, liquid and solid fractions intimately associated in a heterogeneous mixture, such as for example juices, pulps, stones, pits, pips, stalks and vegetable elements of fruits such as wine grapes is characterized in that a vessel (14) is provided having perforate side walls (15, 16) and bounded on its open upstream end by a piston-like member (10, 11) and on its open downstream end by a conical outlet member (50) defining an annular outlet passage, the vessel being filled with the heterogeneous mixture in an upstream-downstream direction thereof, and the vessel then being moved (30, 31) in the opposite, downstream-upstream direction so that the heterogeneous mixture is compressed between the piston-like member (10, 11) and the conical member (50), the pressing force being regulated and modulated for preventing deleterious over-pressing.

Abstract: A liquid separator to extract liquid, usually water, from a water-solid mixture. The liquid separator has a housing with an inlet and an outlet separated by a liquid extraction chamber. The housing sidewalls defining the extraction chamber are porous, and are preferably comprised as a plurality of spaced apart rails or slats. The spacing between the rails provides a porosity for extraction of water. The rails are movable inwardly and outwardly relative to the housing in order to vary the volume of the extraction chamber. Bias means are provided that normally bias the rails inwardly of the chamber. A water-solids mixture is pumped through the chamber and tends to expand the chamber against the force of the biasing means. The combination of effects upon the subject mixture is to cause water extraction through both the squeezing by the slats and the friction occassioned by the dewatering of the subject mixture.

Abstract: A screw press built in a modular system is disclosed. Included are a driving gear, wormshaft, and a housing provided with an impact cone and a perforated wall. The size of the perforations is variable during operation.

Abstract: A cage assembly for a mechanical press apparatus of the type for processing and extruding polymeric materials, the assembly including a pair of oppositely disposed and mating cage sections including window-like cage members each having a plurality of axially extending screen bar elements frictionally and resiliently mounted in a self-supporting relationship for dewatering or otherwise removing moisture from the processed polymeric material which can be quickly and easily installed and/or removed without tear-down of nor removal of the press and/or components thereof.

Abstract: Spacers for cage presses having a cylindrical cage formed of axially extending radially spaced screen bars, each spacer having an L-shaped configuration formed of a single piece of sheet material having approximately the thickness of the desired width of opening between innermost edge portions of adjacent screen bars, and secured at uniform spacings along the length of an adjacent screen bar with the leg portion extending inwardly of the cage and terminating adjacent the innermost edge portions of adjacent screen bars and in contact therewith to establish the minimum separation between adjacent screen bars, and having the foot portion extending substantially tangentially and in contact with the adjacent screen bars near the outer edge portions of the screen bars, each spacer being welded to the adjacent screen bar on the leg portion of the spacer.

Abstract: A press for forming self-supporting bales of fibrous material from a pulpy mass of the same having a high liquid content wherein the inner sides of the fixed walls of the baling chamber are provided with parallel narrow grooves having holes in their bottoms extending through the walls to the outside of the chamber. The pulpy mass creates rib-like formations in the grooves which block loss of solids but permit escape of liquid from the chamber. The grooves are parallel to the movement of the press head so the grooves are self-cleaning.