Combine harvester cleaning apparatus

A - Human Necessities – 01 – F

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130/15

A01F 12/44 (2006.01)

Patent

CA 1283339

COMBINE HARVESTER CLEANING APPARATUS ABSTRACT OF THE DISCLOSURE A combine harvester, having threshing and separating means for threshing and separating crop material and a cleaning apparatus disposed to receive threshed and separated grain from said threshing and separating means and being operable to clean unwanted residue from the threshed and separated grain is disclosed wherein the cleaning apparatus, including at least a pair of cleaning sieves arranged to be oscillated generally back- and-forth for moving threshed and separated grain therealong while permitting the passage of cleaned grain therethrough, and further including a cleaning fan operable to direct a cleaning air blast to the cleaning sieves for urging unwanted residue in the threshed and separated grain into an airborne state for discharge from the combine harvester, is provided with an agitator positioned between the cleaning sieves. During operation, the cleaning sieves are moved relative to the agitator for removing straw particles that otherwise might tend to stick to one or both sieves in a generally upright orientation.

567203

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