Abstract:
Apparatus suitable for the removal of solids from printing ink, among other liquids. Adopted to this end are a magnet assembly and a filter assembly. Comprising a row of permanent magnets enclosed in an elongated housing, the magnet assembly is suspended concentrically in a first liquid chamber of cylindrical shape having an inlet port at its bottom end and an overflow port at its top end. The ink is freed of magnetic solid particles while flowing upwardly through the first liquid chamber, and then overflows into a second liquid chamber in which the filter assembly is suspended centrally. The filter assembly comprises a multiplicity of flat rings or apertured discs, alternating with spacers, stacked on a core rod. Nonmagnetic solid particles still remaining in the ink are removed as it flows into the filter assembly. The cleaned ink leaves the apparatus through an outlet port in communication with the interior of the filter assembly. The solids captured by the filter assembly can be scraped off by revolving the rings or discs with the core rod.
Abstract:
A filter press with a plurality of filter plates mounted in side-by-side relationship and method and apparatus for cleaning the cake from the plates. The cake is formed upon the opposed side faces of the plates, and each of the side faces is covered by fabric. The fabric is flexed away from the plate by pressurized air which is introduced between the plate and the fabric to remove the cakes. Each plate has an operating unit formed by an air valve for controlling airflow into the plate, a rotatably mounted valve-actuator arm and a pair of abutment members adjacent the opposed top edges of the plate. When removing the cakes the plates are moved sequentially, away from the stack and laterally in the press. During the initial movement of each plate one of the abutment members on an adjacent plate engages and swings the actuator arm of the moving plate so as to open its valve, and the cakes are removed. The cleaned plate is then moved on, and an abutment member on the opposed adjacent plate engages the actuator arm for closing the valve.
Abstract:
382,733. Filters or strainers. VICKERS - ARMSTRONGS, Ltd. and WARDLE, J.; Vickers House, Broadway, Westminster. Oct. 14, 1931, No. 28589. [Class 46.] A strainer B comprising wire wound in a helical groove on a former or strainer body having longitudinal grooves, slits, &c., is cleaned by toothed discs C disposed between the convolutions of the wire, the teeth entering the grooves &c., to gear with the former body. The former is rotated by a handle A5 and rotates the cleaner. The discs may be independently and loosely mounted on a spindle and separated by distance pieces, or may be formed by cutting notches in a toothed cylinder. The cleaner may be inside the former, or, as shown, outside. The Provisional Specification states that fixed cleaner blades may be employed with an oscillated former, or that two cleaners may be disposed with engaging convolutions to clean each other.
Abstract:
The invention provides a filter press comprising a support frame; a plurality of filter plates mounted adjacent one another on the support frame, the filter plates being displaceable between an inoperative position wherein adjacent filter plates are spaced apart, and an operative position wherein adjacent filter plates abut to form filtration cavities between them; the filter plates in their inoperative position being angularly displaceable relative to the support frame; and actuating means adapted angularly to displace the filter plates relative to the support frame so as to discharge filter cake from the filtration cavities.
Abstract:
The invention relates to an improvement of the construction of filter plates which are mounted on a filter press. The filter plates comprises a frame (1), a flat filtrate drainage guide member (3, 41, 52) disposed in the frame (1), and a supporting member (5, 5d, 40, 48, 53) for movably supporting the filtrate drainage guide member in the frame (1). The filtrate drainage guide member (3, 41, 52) can be prevented from being broken if filtration pressure applied to one face of the filtrate drainage guide member (3, 41, 52) of the filter plate (2) is much different from that applied to the other face of the filtrate drainage guide member (3, 41, 52) because the filtrate drainage guide member (3, 41, 52) is movably provided in the frame (1).
Abstract:
A disc-type filter, having a filter housing and contained therein a stack of slightly spaced apart axially moveable annular filter plates slidably interconnected to each immediate adjacent plate by three symmetrically and uniformly placed two-headed rivets which provide a predetermined and uniform spacing between the plates when the plates are moved apart for cleaning by reverse flushing. An actuation rod allows selective enlargement of the spaces between the plates, and holds the plates in their spaced apart cleaning position. The stack of plates is held in axial alignment immediately over an input port by guide bars which slidable engage the periphery of the plates. The plates and filter are constructed to permit use of one plate in any position in the stack, and the plates have an annular flange to divert fluid flow to improve cleaning and provide a pre-filtering for larger particulate matter.