Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1980-04-21
1982-09-07
Rolla, Joseph J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209939, 209942, 358106, 414134, B07C 900
Patent
active
043482775
ABSTRACT:
In apparatus for sorting potatoes a roller table conveyor conveys potatoes beneath a television camera which produces on a television monitor screen a picture of an inspection area of the roller table. An operator watching the monitor screen selects potatoes to be rejected by pointing a light pen at the monitor screen. The light pen feeds to a microcomputer a signal indicative of the light pen position on the television monitor screen, which corresponds to a transient position of the potato in the inspection area. Sensors deriving signals from sprocket-wheels coupled to the conveyor feed to the microcomputer a signal dependent upon the conveyor speed, and the microcomputer actuates selectively a bank of deflector fingers to deflect reject potatoes. The choice of deflector fingers actuated is determined by one orthogonal co-ordinate of the light pen, and the timing of actuation of the deflector fingers is determined by the other orthogonal co-ordinate of the light pen and the speed of the conveyor.
REFERENCES:
patent: 3581887 (1971-06-01), Radutsky et al.
patent: 4164291 (1979-08-01), Carlow
patent: 4184598 (1980-01-01), Cowlin et al.
"Lockwood Graders Ltd.", Teleselect, 12-78.
Cowlin Robert M.
Helsby Nigel C.
Lockwood Graders (UK) Limited
Rolla Joseph J.
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