Elastomer screen units for shaker-screen bodies

DETAILED DESCRIPTION As previously stated, the sectional screen units of this invention connected in multiplicity are particularly adapted for sizing and sifting fragmented, hard-stock materials of the smaller sizes.
The body of each unit is preferably integrally formed from suitable elastomer material, molded, die-cut or otherwise formed in a generally rectangular shaped body having a multiplicity of sorting apertures.
First and second edges of the unit, extend transversely to the direction of flow of material to be screened, and are complemental in shape to facilitate interconnections with other units of the sorting screen.
Thus, for example, either of the described transvesely extending edges may be defined by rather closely spaced T-head formation elements while the remaining transverse edge is defined by substantially straight-spaced stem portions for closely fitting between the ends of the T-head elements of an adjacent connected unit.
Also, the lateral or right- and left-hand edges of each unit are preferably formed of complemental shape so that when joined together transversely of the direction of flow of material over the multi-sectional screen, units may be supported upon a minimal number of rods or supporting wires and will at their junctures form sorting apertures with the requirement of minimal material to define such apertures.
The apertured, screen unit utilizes transverse integral elastomer bar segments extending transversely to the direction of material flow and longitudinal extending bar segments which taper in cross section from the upper or charging surface of the unit to the underside thereof and are perpendicular to the transverse bar segments.
Certain series of the longitudinally extending bar segments are transversely apertured in alignment to receive and embed transversely extending supporting and positioning rods or wires which of course are interconnected with and supported from the frame on which the overall shaker screen is mounted.
In the preferred forms of my invention the multiplicity of sectional screen units is not only supported but interconnected and secured in place to constitute a full shaker screen by the conventional transverse supporting rods or wires