Presses – Automatic or material triggered control
Patent
1982-04-29
1983-11-08
Wilhite, Billy J.
Presses
Automatic or material triggered control
100112, 100127, 100131, 100192, 100909, B30B 1516
Patent
active
044135548
ABSTRACT:
A device for compacting and dewatering moist refuse comprises a tube and a piston reciprocable therein. Varying consistency of the refuse matter will require a varying resistance to the compacting action of the piston. A throttling device within the tube comprises a number of plates which are swingable about an axis arranged perpendicularly to the tube, and are actuable so as to occupy a position practically level with the wall of the tube, or to a position in which they extend into the tube, respectively. The piston is operated by a double acting hydraulic ram, and the plates are operated by a further hydraulic ram. Both rams are connected to a source of pressure fluid, and are interconnected so the power stroke end of the further ram communicates with the return flow end of the piston ram, and vice versa. Two oppositely directed non-return valves are fitted in parallel in the conduit connecting the power stroke end of the further ram with the return flow end of the piston ram.
REFERENCES:
patent: 2422895 (1947-06-01), Habenicht
patent: 3121387 (1964-02-01), Fuhrwerk
patent: 3179040 (1965-04-01), Seltzer
patent: 3467000 (1969-09-01), Seltzer
patent: 3789752 (1974-02-01), Wirz
Hydropress Wallander & Co. AB
Wilhite Billy J.
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