A - Human Necessities – 01 – F
Patent
A - Human Necessities
01
F
130/8
A01F 12/20 (2006.01) A01F 7/06 (2006.01)
Patent
CA 1126121
AXIAL FLOW ROTARY SEPARATOR Abstract of the Disclosure In a combine harvester axial flow rotary separator, crop material is propelled in a generally spiral path as a relatively thin mat, maintained in contact with the inner wall of a cylindri- cal separator housing due to centrifugal force from the motion imparted to the mat by a rotor. The rotor, in each of several embodiments disclosed, carries finger-like elements which inter- mittently penetrate and positively propel portions of the mat without compressing it, the finger action and motion providing the desired axial displacement as well as circumferential movement of portions of the mat without relying on additional axial index- ing aids such as guide vanes in the housing. In one embodiment, positively driven finger wheels mounted obliquely and eccentrical- ly in a housing are so inclined that their net effect, when in greatest engagement with the crop material mat, is to index the portion of the mat engaged axially downstream. Adjusting means are provided for controlling the rate of throughput. In another embodiment, an axially reciprocating rotor slat carries a plurali- ty of finger elements so hinged that, as the slat reciprocates axially, the fingers engage the crop material mat only intermit- tently and propel it with a ratchet-like action. In a further embodiment, crop-engaging finger elements of a rotor are mounted on bars, parallel to the separator housing axis, in a mechanical arrangement similar to a parallel bar-type side delivery rake, revolving bodily within the housing. In a further embodiment, the rotor consists of an obliquely journaled finger wheel arrange- ment co-axial with the housing, combined with a drum or core eccentric to the housing axis and carrying functional elements such as threshing or separating bars which pass close to a grate as the rotor rotates. Due to the eccentricity of drum and finger wheel, the fingers alternately effectively withdraw into and emerge from the drum and the inclination of the finger wheel, relative to the housing axis, is such as to ensure positive axial displacement of crop material in the desired direction while the fingers are extended from the housing.
354960
Borden Ladner Gervais Llp
Witzel Homer D.
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