Earth working – Rolling – rotating or orbitally moving tool – With means for stopping or retarding rotation
Patent
1980-02-04
1981-12-01
Shapiro, Paul E.
Earth working
Rolling, rotating or orbitally moving tool
With means for stopping or retarding rotation
172143, A01B 1316
Patent
active
043031293
ABSTRACT:
A damming implement for depositing a series of earthen dams across a furrow to provide a line of catch or ponding basins which inhibit run-off of water includes a wheel structure having radially opposed blades oriented transversely to a line of draft for scraping a ground surface and with arcuate arms extending therefrom partly around the circumference of the wheel structure and having respective radially opposed end portions. The wheel structure is mounted in a yoke connected by a hitch to a tool bar pulled behind a tractor. A latch mounted on the yoke alternately engages a shock absorbing pad on one of the end portions of the wheel structure to prevent rotation thereof and scrape one of the blades along the ground surface for accumulating an earthen dam in front of the blade. When the latch is disengaged from the end portion, the wheel structure rotates along the ground surface and deposits the earthen dam and a succeeding arcuate arm end portion rotates into engagement with the latch to stop a succeeding blade in scraping relation. The latch is connected via a cam mechanism to a rotatable drive shaft which causes the latch to swing into and out of the path of rotation of the wheel structure to alternately permit and prevent rotation of the wheel structure.
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United States Patent Office Classification Definitions, Earth Working p. 172-189, 12-1972.
Shapiro Paul E.
The Hamby Company
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