Presses – With drain means for expressed liquid – Drainage through or along pressure surface
Patent
1979-10-17
1981-07-21
Wilhite, Billy J.
Presses
With drain means for expressed liquid
Drainage through or along pressure surface
100 43, 100 98R, 100127, 100147, B30B 912
Patent
active
042791979
ABSTRACT:
A screw press for extracting liquids from materials such as fruits, vegetables, or the like having a cylindrical barrel having a concentric variable-speed helical feed and compression screw. The rearward portion of the cylindrical barrel comprises a cage section having perforate filter screens for passing extracted liquids and filtering out undesired solids from the material being pressed. The cage section is formed by at least one pair of open semicircular frames having a plurality of spaced apart ribs which support replaceable filter screens. The repair of frames is attached along its bottom edge to a set of interleaved hinge blocks which are hingedly attached to the frame of the press. The pair of frames is removably joined along the upper edges of the frame. When the press is nonoperating, the frames are separated at the upper edges and the hinged blocks permit the frames to open in a book-like manner and swing downward and outward completely clear of the feed and compression screw. The wide open position permits cleaning of the screens and screw, or replacement of the screens. A feed portion of the press barrel has an opening limited to 11/2 times the feed screw pitch and an inlet chamber enclosing 50% to 75% of the circumference of the feed and compression screw. The feed and compression screw is driven by an adjustable hydraulic drive system to permit control for optimum throughput of the press.
REFERENCES:
patent: 3085502 (1963-04-01), Hurtig
patent: 4117776 (1978-10-01), Hunt
Hunt Arthur J.
Hunt, Jr. Arthur J.
Wiggins Macdonald J.
Wilhite Billy J.
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