Earth working – Diverse tools – Rolling and non-rolling
Patent
1984-07-30
1986-06-17
Johnson, Richard J.
Earth working
Diverse tools
Rolling and non-rolling
172200, 172673, 172502, 172398, A01B 3518, A01B 4902
Patent
active
045950644
ABSTRACT:
A drag attachment for a disk or cultivating implement which includes a linkage system mounted in cooperation with a fluid cylinder apparatus for raising and lowering the disk transport wheels, which linkage system includes a pair of drive arms connected to the rotatably-mounted wheel shaft carrying the transport wheels, a pair of double pivoted links connecting each drive arm to a separate, adjustable connecting rod, which connecting rod is in turn pivotally attached to a pivot arm rotatably mounted on the frame of the disk. A pair of rearwardly and downwardly extending frame arms mounted on the pivot arm and spaced by an arm brace serve to support a drag pipe, harrow or other cultivating implement in a desired attitude. The drag attachment can be manipulated to raise or lower the drag pipe, harrow or other cultivating implement by operation of the conventional fluid cylinder apparatus provided on the disk.
REFERENCES:
patent: 1153916 (1915-09-01), Heggland
patent: 2871959 (1959-02-01), Koskenmaki
patent: 2994388 (1961-08-01), Ryan
patent: 3019747 (1962-02-01), Strahan
patent: 3090447 (1963-05-01), Hotchkiss
patent: 3090448 (1963-05-01), Hotchkiss
patent: 3091476 (1963-05-01), Blake
patent: 3490542 (1970-01-01), Eiten
patent: 4113028 (1978-09-01), Glueck
patent: 4250970 (1981-02-01), Pfenninger
Harrison John M.
Johnson Richard J.
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