Earth working – With drive means for tool or cleaner – With cleaner or comminutor spaced from ground surface
Patent
1981-11-12
1983-11-01
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
With cleaner or comminutor spaced from ground surface
172 49, 172 66, 172123, 172547, 172556, A01B 900
Patent
active
044125879
ABSTRACT:
A soil working machine has a working member with element blades and a scraping member that releases clods cut out by the working member so that the clods drop to the ground. Both of the members can be positively driven in the same direction about horizontal axes, but the scraping member can also be rotated by contact with the ground. Preferably, the blades are secured to support discs and extend axially of the working member. Scraping elements on arms of the scraping member project between the blades of adjacent support discs and have vanes which also extend almost axially. During rotation, the vanes are moved to intersect the paths of the blades and to remove the clods. Other forms of scraping members are described. The scraping member ensures that soil is wiped from the blades, to avoiding clogging of the working member and a consequent increased power requirement. Also, the cut clods are preferably replaced upside down by the action of the members.
REFERENCES:
patent: 514066 (1894-02-01), Drader
patent: 2559996 (1951-07-01), Pettman
patent: 2590790 (1952-03-01), Pettman
patent: 3297095 (1967-01-01), Lely
patent: 3941193 (1976-03-01), Shoemaker
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