Notched helical vanes in the feeding section of an axial agricul

Details Notched helical vanes in the feeding section of an axial agricul Notched helical vanes in the feeding section of an axial agricul

1993-04-26

1994-11-15

Melius, Terry Lee

Crop threshing or separating

Threshing

Axial flow through threshing section

460 70, A01F 1210

Patent

active

053643062

ABSTRACT:
The feeding section of an axial flow agricultural combine is provided with helical vanes. Each helical vane having an upstream end that is provided with a notch in which crop material is temporarily trapped. The notch is formed by tapering the upstream end of the helical vane which is welded to a transverse leading blade. The transverse leading blade is provided with a tapered leading edge to prevent crop material from hairpinning on the blade.

REFERENCES:
patent: 4148323 (1979-04-01), McMillen et al.
patent: 4177821 (1979-12-01), Peiler et al.
patent: 4248248 (1981-02-01), De Busscher et al.
patent: 4266560 (1981-05-01), Powell et al.
patent: 4362168 (1982-12-01), Hengen et al.
patent: 4367757 (1983-01-01), Class
patent: 5145462 (1992-09-01), Tanis et al.

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