Classifying – separating – and assorting solids – Adhesion – Coated surface or mass
Patent
1973-03-26
1976-01-20
Knowles, Allen N.
Classifying, separating, and assorting solids
Adhesion
Coated surface or mass
2091116, 209117, 209441, B07C 5342
Patent
active
039332497
ABSTRACT:
A secondary light sensitive photoelectric product separator for use with a primary product separator that concentrates a material so that it is visually distinguishable from adjacent materials. The concentrate separation is accomplished first by feeding the material onto a vibratory inclined surface with a liquid flow, such as a wet concentrating table. Vibrations generally perpendicular to the stream direction of flow cause the concentrate to separate from its mixture according to its color. When the concentrate and its surrounding stream reach the recovery end of the table, a detecting device notes the line of color demarcation and triggers a signal if it differs from a normal condition. If no difference is noted nothing moves on the second separator. However, if a difference is detected in the constant monitoring of the color line's location, a product splitter and recovery unit normally positioned near the color line at the recovery end, moves to a new position. In this manner the selected separated concentrate is recovered at a maximum rate regardless of variations in the flow stream or other conditions present.
REFERENCES:
patent: 1513693 (1924-10-01), Butchart
patent: 1678884 (1928-07-01), Sweet
patent: 2907459 (1959-10-01), Jean
patent: 3179247 (1965-04-01), Hutter et al.
patent: 3650396 (1972-03-01), Gillespie et al.
Deurbrouck Albert W.
Welsh Robert A.
Knowles Allen N.
The United States of America as represented by the United States
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