Article handling apparatus using air flow to provide article ori

Details Article handling apparatus using air flow to provide article ori Article handling apparatus using air flow to provide article ori

1978-03-01

1979-10-30

Reeves, Robert B.

Conveyors: power-driven

Conveyor for changing attitude of item relative to conveyed...

With pressurized fluid causing change in attitude

198400, 414755, B65G 4724

Patent

active

041725131

ABSTRACT:
Apparatus is disclosed for classifying or orienting articles having surface areas which differ in the characteristic usually referred to as "smoothness" or "roughness". An air stream is directed against the articles to impinge against one of the surface areas. The apparatus is configured so that if the impinged area is smooth, a laminar flow condition will be established which draws the article towards the air stream. If the impinged area is rough, on the other hand, the article will be blown outwardly from the air stream. One embodiment has particular utility with flat articles having opposed surfaces, one of which is relatively smooth and the other of which is rough (being interrupted by ribs or like discontinuities). The articles are transported leaning against a flat support member so that a random one of the respective opposed surfaces will move across an air stream which is expelled from a hole in the support member. If the air stream impinges upon the smooth surface, a laminar flow condition is established and the article is drawn toward the wall and remains in its original orientation. If the air stream impinges upon the rough surface, however, laminar air flow does not occur and the article is blown over away from the support member.

REFERENCES:
patent: 3622151 (1971-11-01), Range
patent: 3734268 (1973-05-01), Burger et al.

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