Earth working – With drive means for tool or cleaner – Subsurface shaft or bar
Patent
1981-07-21
1983-08-09
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
Subsurface shaft or bar
172125, A01B 3919
Patent
active
043973582
ABSTRACT:
An upstanding housing is provided having upper and lower ends and first support structure supports the upper and lower ends of the housing from a first depending tool shank of one gang section of a cultivator assembly for limited vertical shifting of the housing relative to the first tool shank. Powered output shaft structure is journaled from the lower end of the housing for rotation about a horizontal axis extending transversely of the gang section and a rod weeder shaft has one end supported from and driven by the powered output shaft. Journal structure is mounted on the rod weeder shaft at a point spaced therealong from the powered output shaft and second support means supports the journal structure from a second tool shank of the cultivator gang section for limited vertical shifting relative thereto. The floating action of the rod weeder shaft relative to the cultivator tool shank enables the rod weeder to be operated at substantially constant depth, independent of the working depth of the associated cultivator shank.
REFERENCES:
patent: 1974869 (1934-09-01), Hotto
patent: 2157702 (1939-05-01), Hoke
patent: 3033294 (1962-05-01), Edwards
patent: 3108642 (1963-10-01), Hunter
patent: 3186494 (1965-06-01), Jackson
patent: 3443645 (1969-05-01), Edwards
patent: 3576213 (1971-04-01), Hall
patent: 3651870 (1972-03-01), Calkins
patent: 3768425 (1973-10-01), Seifert, Jr.
patent: 4171723 (1979-10-01), Hood et al.
Jacobson Harvey B.
Shapiro Paul E.
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