Presses – With additional treatment of material – Cutting – breaking – piercing – or comminuting
Patent
1974-12-27
1976-11-16
Wilhite, Billy J.
Presses
With additional treatment of material
Cutting, breaking, piercing, or comminuting
100 48, 100147, B30B 118, B30B 1514
Patent
active
039916685
ABSTRACT:
A shredder-compactor apparatus has a hopper for receiving refuse material to be processed and a compaction tube arranged to receive the refuse material from the hopper. A rotary auger screw extends along the hopper and through the compaction tube and coacts with a breaker bar located in the hopper to shred and tear the refuse material in response to rotation of the auger screw. As the auger screw rotates, the shredded refuse material is transported axially through the compaction tube and compacted therein. In the transition region between the hopper and compaction tube, the auger screw has a truncated screw section which is reduced in dimension compared to the remainder of the auger screw so as to facilitate entry of the shredded material into the compaction tube. The compaction tube has a set of wear plates removably mounted at circumferentially spaced intervals around its inner wall and the wear plates are formed of a material which is less hard than the auger screw to ensure that the wear plates themselves wear down rather than the auger screw thereby prolonging the life of the auger screw. A spring-loaded latch assembly is provided at the discharge end of the compaction tube to maintain the back-pressure of the compacted material within predetermined limits. A reversible electric motor is connected through a transmission to rotationally drive the auger screw, and control circuitry effects driving of the motor according to a predetermined program such that the auger screw is rotationally driven in both the forward and reverse directions, in repeated cycles, in order to assist in feeding the material from the hopper and to prevent jamming of the material in the compaction tube.
REFERENCES:
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patent: 2549997 (1951-04-01), Zies et al.
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patent: 3044391 (1962-07-01), Pellett
patent: 3547577 (1970-12-01), Lovercheck
patent: 3683796 (1972-08-01), Miner et al.
patent: 3760717 (1973-09-01), DeMilt et al.
patent: 3845907 (1974-11-01), Schwarz
Collins Stephen
De Milt Kenneth E.
Adams Bruce L.
SFM Corporation
Wilhite Billy J.
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