Earth working – Plural wheeled implements
Patent
1983-01-26
1984-12-11
Stouffer, Richard T.
Earth working
Plural wheeled implements
172401, 172414, 280 4319, 280 4323, A01B 6322
Patent
active
044872674
ABSTRACT:
Apparatus for adjusting the depth of operation of a ground working tool on an agricultural apparatus comprises a strap which extends across a plurality of separate frame sections of the apparatus and incorporates a chain coupling which passes around a pulley wheel having an axis of rotation which is horizontal and transverse to the movement of the strap to communicate horizontal movement of the strap to vertical movement of a thrust bar. The thrust bar acts upon the axle of ground wheels so as to adjust the position of the ground wheels relative to the frame section. The ground working tool supported by the frame section is therefore adjusted relative to the ground to increase or decrease the depth of operation on the ground. The ground working tool can comprise an air seed boot and the frame of the apparatus can comprise a plurality of separate sections pivotally connected together to accommodate variations in the terrain.
REFERENCES:
patent: 436985 (1890-09-01), Melder
patent: 664686 (1900-12-01), Smith
patent: 1504982 (1924-08-01), Shaner
patent: 3534820 (1970-10-01), Groenke
patent: 4387772 (1983-06-01), Bourgault
Ade Stanley G.
Friggstad Manufacturing Ltd.
Stouffer Richard T.
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