Stone separation table for potatoes and other root crops

Details Stone separation table for potatoes and other root crops Stone separation table for potatoes and other root crops

1993-08-06

1995-06-20

Gastineau, Cheryl L.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Separating means

209667, 209668, B07B 1305

Patent

active

054254590

ABSTRACT:
A stone separation table (30,70) selectively separates and drops stones, clods, and dirt (27) between selected rollers while conveying potatoes (33) or other root crops from one side of the table to the other. The stone separation table incorporates sets of rollers (32,72) including separating (36,76) and spacing (40,80) rollers of substantially the same diameter. The sets of rollers are coplanar forming a planar conveying level (45,75) with all rollers driven in the same direction of rotation. The separating roller (36,76) is constructed with projecting elements, either projecting fingers (38) of a star roller (36) or bristles (78) of a brush roller (76) for receiving stones, clods, and dirt (27) for rotation downward and dropping in the separating passageway (42,82) between the separating roller (36,76) and spacer roller (40,80). The stone separation table (30,70) is incorporated in a standard potato harvester (25) or other root crop harvester at one of the horizontal conveying levels (45,75) of the harvester.

REFERENCES:
patent: 2244546 (1941-06-01), Stockdale
patent: 2370539 (1945-02-01), Hodecker
patent: 2417921 (1947-03-01), Fox
patent: 4471876 (1984-09-01), Stevenson, Jr. et al.
patent: 4871073 (1989-10-01), Berry et al.

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