Earth working – Rolling – rotating or orbitally moving tool – Plural groups of disks
Patent
1985-02-15
1986-05-27
Johnson, Richard J.
Earth working
Rolling, rotating or orbitally moving tool
Plural groups of disks
172580, 172466, A01B 2304
Patent
active
045910030
ABSTRACT:
Forward and rear gang disc harrow carriers are hingedly joined near corresponding ends by a vertical axis hinge structure. Near their other corresponding ends, the gang disc harrow carriers are interconnected through a four element linkage having an operating cylinder and a latch bar whereby the carriers can be positioned at varying prescribed angles for working the soil and in parallel locked relationship for transport. Transport wheels are pivotally attached to the rear carrier and are equipped with power cylinders which raise and lower the wheels for lowering and raising the rear carrier. The front carrier has a pivotal connection with a drawbar and another power cylinder is connected between the drawbar and front carrier and is operable to raise and lower the front carrier.
REFERENCES:
patent: 1919080 (1933-07-01), Stewart
patent: 2685159 (1954-08-01), Brundage
patent: 2759310 (1956-08-01), Newkirk
patent: 3439750 (1969-04-01), McKay
patent: 3572445 (1971-03-01), Richey
patent: 3643743 (1972-02-01), Fuselein
patent: 4308919 (1982-01-01), Coughran
Broome Mark W.
McKemie George R.
Johnson Richard J.
Rome Industries, Inc.
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