Unearthing plants or buried objects – Stone gathering and/or unearthing by impelling above-ground...
Patent
1979-11-01
1981-08-11
Hafer, Robert A.
Unearthing plants or buried objects
Stone gathering and/or unearthing by impelling above-ground...
171 19, 171110, 171141, 198509, A01D 1902, A01B 1700
Patent
active
042829321
ABSTRACT:
This rock picker invention is a towable farm implement which is capable of removing rocks from a farm field. A plurality of buckets scoop up quantities of soil as the rock picker is towed by a tractor. The buckets are mounted on a pair of cables which pass over guide wheels. The cables are forced to move by a power source so that the buckets are forced into, across and out of the ground. The guide wheels are mounted on axles on a conveyor frame which allows the buckets and cables to be lifted to a transport position and which allows the angle of attack between the buckets and the ground surface to be varied. The buckets are equipped with openings and shaped such that soil falls from the buckets when the buckets are lifted. The cables are guided such that the buckets are caused to invert and dump the rocks collected into a hopper. The hopper is equipped with a lifting linkage to allow transfer and disposal of rocks collected. The rock picker is equipped with forwardly mounted harrows and gathering sections that aid in the collection of rocks.
REFERENCES:
patent: 2804156 (1957-08-01), Greaves
patent: 3431979 (1969-03-01), Gregerson
patent: 3443644 (1969-03-01), Schindelka
patent: 3599724 (1971-08-01), Fraske
patent: 3638735 (1972-02-01), Deneky
patent: 3702509 (1972-11-01), Zowaski
patent: 4113023 (1978-09-01), Baskett
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