Classifying – separating – and assorting solids – Sifting – Feeding and discharging
Patent
1975-05-12
1976-09-14
Halper, Robert
Classifying, separating, and assorting solids
Sifting
Feeding and discharging
209269, 209327, B07B 128
Patent
active
039805549
ABSTRACT:
An ore washing machine is disclosed which comprises an elongate box mounted on rollers for simultaneous rolling and rocking movement transversely of the longitudinal axis of the box. A plurality of horizontally extending, superposed screens are mounted within the box at substantially the mid-span of the side and end walls. Arcuate corners which join the side and end walls with the bottom wall are formed with radii which are sized within the range of one-fourth to one-half of the vertical distance between the lowermost screen and the bottom wall. An operating arm and yoke are connected with one side wall at the level of the lowermost screen for imparting a reciprocating thrust force to the box so that a charge of ore and water which is deposited in the box is caused to move in a figure eight path for an improved washing action. The fines passing through the screens move upwardly through a discharge spout which is oriented at an angle of 45.degree. or less with respect to a side wall. Heavier ore, rock, stones and disolved clay and talc in the water are discharged through a chute in an end wall of the box.
REFERENCES:
patent: 365343 (1887-06-01), Kron
patent: 2074515 (1937-03-01), Pyatt
patent: 2106742 (1938-02-01), Hinkle
patent: 2587498 (1952-02-01), Marsh
patent: 2764291 (1956-09-01), Vigeant
patent: 3315807 (1967-04-01), Rosen
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