Unearthing plants or buried objects – Stone gathering and/or unearthing by impelling above-ground...
Patent
1988-06-08
1990-03-06
Burr, Edgar S.
Unearthing plants or buried objects
Stone gathering and/or unearthing by impelling above-ground...
171143, 172324, 172123, A01B 4300
Patent
active
049057677
ABSTRACT:
A device for picking rocks from a field includes a frame which is mounted on a pair of wheels. A hitch is pivotally attached to the frame and is adapted for engagement with a conventional tractor. The offset of the hitch is adjusted by a hydraulic cylinder to adjust the tracking of the frame behind the tractor. A reel is mounted for rotation on the frame and is powered by a chain and sprocket drive from a rotary hydraulic motor. The reel has a plurality of radially extending spokes, each terminating in a stone picking rake formed by a plurality of spaced teeth. The elevation of the reel with respect to ground level is adjusted by a pair of hydraulic cylinders connected to a pivotal reel mounting frame. A depth stop mechanism is provided to lock the reel in an adjusted elevational position. In a first embodiment, a semi-cylindrical stone collecting box is mounted within the reel frame. As each of the reel spokes rotates to a top position, collected stones fall by gravity into the open stone box. A hinged door is provided in the bottom of the stone box and is operated by a hydraulic cylinder for enabling the collected to be deposited in a desired location. In a second embodiment, the stone collecting box is replaced by an endless belt type conveyor for transporting the stones to a trailer or truck bed.
REFERENCES:
patent: 2002239 (1935-05-01), Davis
patent: 2804156 (1957-08-01), Greaves
patent: 3603007 (1971-09-01), Naber et al.
patent: 3670430 (1972-06-01), Mazzarins
patent: 3739855 (1973-06-01), Bliss
patent: 3787989 (1974-01-01), Heckathorn
patent: 4106226 (1978-08-01), Hanson
patent: 4157623 (1979-06-01), Satterwhite
Burr Edgar S.
Cohen Moshe I.
Kearns Jerry T.
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