Automatic control apparatus for a grain separator

Details Automatic control apparatus for a grain separator Automatic control apparatus for a grain separator

1980-02-29

1982-03-09

Hill, Ralph J.

Classifying, separating, and assorting solids

Stratifiers

Elements

209467, 209491, B03B 400, B03B 1302

Patent

active

043188060

ABSTRACT:
An automatic control apparatus of a grain separator for precisely separating a mixture of soil particles and grain having different hue and specific gravity, wherein the grain separator includes a soil discharge opening disposed at the front end of a separating plate which is inclined with a forward elevation in order to perform oscillations back and forth at a larger angle than said inclined angle, and a grain discharge opening disposed at the rear end thereof.
The automatic control apparatus is equipped with a light source and a light receiving element at the front end of said separating plate to detect the intensity of the ray reflected from the mixture of soil and grain, at which said light receiving element produces a signal which actuates an electromagnetic driving means to allow or block the discharge of materials from the soil discharge opening, thus discharging only soil particles from the discharge opening.

REFERENCES:
patent: 440460 (1890-11-01), Boone et al.
patent: 2150103 (1939-03-01), Peale
patent: 3933249 (1976-01-01), Welsh et al.
patent: 4149967 (1979-04-01), Masumoto

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