Earth working – Mast type hitch – Tool movable relative to mast while earth working
Patent
1981-04-13
1983-03-29
Johnson, Richard J.
Earth working
Mast type hitch
Tool movable relative to mast while earth working
172250, 172610, 404129, A01B 59043
Patent
active
043780520
ABSTRACT:
A clevis-shaped bracket including an A-frame is adapted for attachment to the three point hitch of a tractor. A roller supporting frame is mounted within the bracket for articulated movement about the vertical axis of a pivot located within the hitch supported bracket to provide a short turning radius for tractor and attachment. The roller equipped frame includes a walled structure which serves as a water tank. A hydraulic cylinder is disposed intermediate the tractor hitch bar and the attachment in an inclined manner to bias the attachment downwardly to increase ground pressure. An adjustable frame is provided with telescopic beam members to mount rollers of increased length or other ground bearing instrumentalities.
REFERENCES:
patent: 1237406 (1917-08-01), Stoner
patent: 2531768 (1950-11-01), Cline
patent: 2986977 (1961-06-01), Swenson
patent: 3034238 (1962-05-01), McGee
patent: 3794121 (1974-02-01), Drozak
patent: 4069874 (1978-01-01), Buck
patent: 4245458 (1981-01-01), Smith
Givnan, Jr. James D.
Johnson Richard J.
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