Abstract: A filter sector about which a bag-type filter is secured is disclosed for use in a rotary disc filter structure. The filter sector is a generally wedge-shaped panel having oppositely disposed planar surfaces. A plurality of substantially cylindrical projections are affixed to the planar surfaces and have contact surfaces which support the bag filter spaced apart from the planar surfaces. A plurality of elongated ribs extend between an apex end portion and an arcuate end portion of the panel and are spaced apart to define a plurality of independent flow channels for filtrate drawn through the bag filter. A collar assembly is provided for connecting the filter sector to a filtrate discharge conduit.

Abstract: A segmented screen body or bottom for classification, screening and washing of fragmented hard stocks employs a multiplicity of segmented elements constructed of elastomer or rubber material which, when abutted and supported in predetermined relations, define sieve apertures of a predetermined size and extending, if desired, in staggered longitudinal rows. The structure further requires a multiplicity of parallel transverse metal wires or equivalent elements which are embedded and extend through appropriate apertured portions of the elastic components. In the preferred form the essential elements include T-shaped and L-shaped elements, all of which may be obtained from identical integral moldings of T-shape and many of which are cut along transverse lines at the T-top to provide from the same moldings complementary L-shaped elements.