Soil cultivating apparatus

Details Soil cultivating apparatus Soil cultivating apparatus

1983-04-18

1986-08-12

Johnson, Richard J.

Earth working

Ground engageable draft responsive lever

172269, 1722605, A01B 6100

Patent

active

046050728

ABSTRACT:
Soil cultivating apparatus is provided including a cultivating tool for entering into the soil, and control means responsive to the force exerted on said tool by an obstacle encountered by said tool as the tool is drawn through the soil to lift the tool out of the soil. In a preferred embodiment a spring biased latch holds a control arm hinged to a secondary member itself hinged to the main frame of the apparatus, and the soil-cultivating tool extends from the control arm. A ground engaging pad on the control arm levers the tool out of the ground when the tool is released by the latch in response to an excessive force thereon due to the obstacle.

REFERENCES:
patent: 451256 (1891-04-01), Barton
patent: 1854904 (1932-04-01), Johnson
patent: 2100856 (1937-11-01), Killefer
patent: 2788731 (1957-04-01), Lindgren

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