Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1976-06-28
1978-10-17
Reeves, Robert B.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209586, 250560, 356156, B07C 110
Patent
active
041204034
ABSTRACT:
A photoelectric apparatus for sorting articles according to size includes a vertical column of photoelectric pickups disposed adjacent to the conveyor on which the articles pass by. The apparatus includes a clock pulse generator synchronized with the conveyor, the clock pulses driving a plurality of sizing logic circuits. The signals from the photoelectric pickups are fed through a multiplexer to each sizing circuit, which counts the clock pulses while the appropriate pickups are being interrupted by an article passing by. If a given sizing circuit counts to within a predetermined number of pulses while the article passes the column, it locks out the other sizing circuits and actuates a time delay relay. The relay actuates a solenoid downstream of the column to knock the article off the conveyor and into an appropriate collection device.
REFERENCES:
patent: 3513321 (1970-05-01), Sherman
patent: 3525433 (1970-08-01), Babb
patent: 3774040 (1973-11-01), Stephanos
Lauer George E.
Reeves Robert B.
Rolla Joseph J.
Zimmerman Harris
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