Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1992-04-22
1993-09-14
Hajec, Donald T.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
177145, 198365, 209580, 209593, 209701, 209912, 209939, B07C 518, B07C 536, G01G 1900
Patent
active
052441008
ABSTRACT:
An apparatus for sorting objects according to preselected weight and/or visually ascertainable criteria. Each object is singulated and transported between adjacent pairs of a plurality of roller assemblies attached to a conveyor chain to be freely rotatable on an vertically slidable axis oriented normal to the conveying path. A rotation control surface along the conveying path causes rotation in the roller assemblies and in the object supported therebetween, increasing the surface of the object accessible for optical scanning. Mounted between each pair of roller assemblies is a weighing cradle subtending the object transported therebetween. The weighing cradle elevates and captures the object from its support between roller assembly so that the cradle can engage a load cell for weighing the object. Pivotally mounted between each pair of rollers and subtending the object transported therebetween is an elongated discharge plate. Each object is unloaded at an appropriate discharge location by pivoting upwardly the discharge plate. Pivoting of the discharge plate is caused by the activation of a diverter arm at the discharge location. The activated diverter arm directs an orientation control surface attached to the discharge plate onto a ramp adjacent the conveying path. The apparatus involves a single sorter chain having attached thereto a plurality of component parts: roller assemblies, weighing cradles, discharge plates, and roller mounts. Roller assemblies, weighing cradles, and discharge plates are supported on the roller mounts, which are in turn releasably secured to the sorter chain.
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Hiebert Jacob F.
Regier Robert D.
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