1985-01-24
1986-10-21
Hirsch, Paul J.
130 27T, A01F 2902
Patent
active
046179429
ABSTRACT:
A chaff spreading apparatus is adapted to be functionally mounted to conventional combine threshing machines in a manner to perform a secondary chopping and spreading of straw and chaff exiting the rear of the threshing machine that somehow bypass the threshing machine primary straw spreaders. The chaff spreading apparatus comprises a pair of rotating wheels or disks, each having a plurality of blades mounted thereon for catching, cutting or chopping, and scattering straw or chaff exiting the threshing machine. The disks are positioned for rotation in an essentially horizontal plane generally below and slightly behind the straw and chaff exit chute of the threshing machine in a manner to catch all of the straw and chaff sliding down the chute and chop and scatter same to the rear and sides of the threshing machine. The pitch of the chopping and scattering blades is adjustable relative to the axes of rotation of the disks in order to vary the degree of chaff and straw chopping and to adjust the swath of the straw and chaff spread for various types and densities of straw and chaff. Additionally, the rotational speed of the spreading disks and the blades is adjustable and is determined in accordance with the characteristics of the particular grain being harvested.
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Hirsch Paul J.
McCully Michael D.
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