Earth working – Tool – standard or connection – Non-rectangular – symmetrical type
Patent
1992-12-17
1995-05-23
Crowder, Clifford D.
Earth working
Tool, standard or connection
Non-rectangular, symmetrical type
172163, 172195, 172497, 172765, A01B 3920
Patent
active
054172934
ABSTRACT:
In a sprigger a tiller aligned with a plow and weighted to disks. The tiller breaks the ground forming narrow grooves into which fertilizer may be distributed and a plow following behind, preferably at a depth less than that of the tiller, forms a substantially flat bottomed furrow in the path of the groove. A plurality of chutes are aligned, one over each of the furrows, and a separator mounted above the chutes loosens the sprigs and distributes them through the chutes into the furrows. Weighted disks shift the ridges of loose soil over the sprigs and trailing tires on the sprigger transport carriage compact the earth over the sprigs. Each of the plows operates in a three-stage fashion, with V-shaped blades cutting the horizontal path through the earth, a lifting wedge raising the cut earth at a modest angle above the furrow and a pair of curling plates having convex surfaces curling the uplifted earth into ridges on either side of the plow to provide a clean, consistent furrow. Each tiller and plow combination is mounted on a separate tension device so that, if the plowing mechanism meets an obstacle that could cause damage to the mechanism, they are free to rotate clear of the obstacle and then return under bias of the tension mechanism to the plowing position. A hydraulic system coordinates operation of a beater system, including a separator and chain conveyors which feed sprigs into the separator, with rotation of the transport tires to provide even distribution of sprigs in bushels per acre.
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Crowder Clifford D.
Neas Michael A.
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