Separating grate for a grain harvester

Details Separating grate for a grain harvester Separating grate for a grain harvester

1988-08-05

1989-10-24

Hirsch, Paul J.

Crop threshing or separating

Concave

Grid or grate

460108, A01F 1224

Patent

active

048758914

ABSTRACT:
In an axial flow rotary separator, a separator grate forming part of a generally cylindrical separator casing consists of a series of circumferentially spaced, axially extending, finger bar assemblies. In each finger bar assembly side by side fingers extend circumferentially in the direction of rotation, supported cantilever fashion by an axially extending finger support bar. The fingers and support bar inner surfaces all lie approximately in a cylindrical surface but the radial offset of the free ends of the fingers relative to the following finger support bar, may be chosen or varied according to the crop handled and the grate characteristics desired. In a second embodiment a threshing concave of the same general structure is used in conjunction with a conventional rasp bar threshing cylinder.

REFERENCES:
patent: 787867 (1905-04-01), Von Wye
patent: 873719 (1907-12-01), Closz
patent: 947697 (1910-01-01), Hasch
patent: 1162548 (1915-11-01), Barhorst
patent: 1191853 (1916-07-01), Thompson
patent: 1269109 (1918-06-01), Noack
patent: 2457680 (1948-12-01), Johnson
patent: 2804077 (1937-08-01), Anderson
patent: 3334744 (1967-08-01), James et al.
patent: 3385438 (1968-05-01), Fisher
patent: 3537459 (1970-11-01), Thomas
patent: 4004404 (1977-01-01), Rowland-Hill et al.
patent: 4511466 (1985-04-01), Jones et al.

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