1980-09-22
1982-09-21
Shapiro, Paul E.
Earth working
Processes
172 33, A01B 1508, A01B 7900
Patent
active
043502083
ABSTRACT:
A plow has spaced apart furrow cutters and a furrow elevating structure that loosens and raises a continuous wide furrow strip to a furrow turning device during plow travel. The turning device can be an open ended drum that is rotated or stationary. Within the drum, a worm conveyor is rotated that first engages and depresses the furrow top, but as the furrow strip passes through the drum, it is inverted and to some extent, winds around the conveyor so that the furrow strip has a cross section that resembles an inverted shallow U. The inverted and deformed strip is deposited in the furrow being formed. The conveyor is normally located about centrally of the drum interior so that the furrow strip top is first engaged by the conveyor's lower surfaces, but as the strip is urged through the drum, it is inverted and supported on top of the conveyor before being deposited to the rear. The method of cutting, inverting and depositing the deformed continuous furrow strip is claimed.
REFERENCES:
patent: 372557 (1887-11-01), Morley
patent: 1209848 (1916-12-01), Kernan et al.
patent: 1516561 (1924-11-01), Best
patent: 2617347 (1952-11-01), Provost
patent: 2663242 (1953-12-01), Lancaster
Mason William B.
Shapiro Paul E.
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