Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1977-01-06
1979-01-30
Johnson, Richard J.
Earth working
With drive means for tool or cleaner
Plural driven tools
172311, 172117, A01B 3306
Patent
active
041367430
ABSTRACT:
A cultivating implement has a main frame comprised of beams that support an elongated central frame portion that has rotatable soil working members mounted in a transverse row. At each lateral side of the central portion, an outer elongated frame portion, with a corresponding group of further soil working members, is pivoted. In working position, the outer portions comprise extensions of the central portion so that a broad strip of ground is worked. For transport, the outer portions can be pivoted upwardly by hydraulic assemblies about pivots that interconnect same to the central portion, and the central portion can be raised out of ground contact by further hydraulic assemblies that move rear ground wheels into supporting position. Each of the hydraulic assemblies has a latch that cooperates with a pin to retain the outer portions and ground wheels in transport position. A cable or rope to the operator can pivot and release the latch so that a working position can be assumed. Each frame portion can be linked to the main frame by parallelogram linkages to match ground undulations. Driving connections via respective gear boxes engage the p.t.o. of a prime mover.
REFERENCES:
patent: 638769 (1899-12-01), Smith
patent: 2704021 (1955-03-01), Brundage
patent: 3250333 (1966-05-01), Day
patent: 3633679 (1972-01-01), Dahlberg
patent: 3667551 (1972-06-01), Lely
patent: 3797580 (1974-03-01), Roth
patent: 3885633 (1975-05-01), Lely
patent: 3967684 (1976-07-01), Haverdink
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