Fast clamp chisel trip

Details Fast clamp chisel trip Fast clamp chisel trip

1976-12-20

1978-09-26

Johnson, Richard J.

Earth working

Overload shifting

Against spring return device

A01B 6104

Patent

active

041162811

ABSTRACT:
A fast clamp chisel trip apparatus is disclosed for use with a chisel plow having a frame with a tool attached thereto with means for lowering and raising the tool to positions for working and for transporting said plow, respectively. The embodiment of the apparatus disclosed includes means for holding the tool in a rigid position for plowing while the plow is in its work position, said means being adapted to remove the tool from this rigid position whenever the tool, while in the process of plowing, encounters any force of resistance greater than a predetermined force. Also included are means for setting said predetermined force into the apparatus, and means for returning the tool to its rigid position for plowing when the source of said resistance force has been by-passed.

REFERENCES:
patent: 3223175 (1965-12-01), Twidale
patent: 3275086 (1966-09-01), Morris
patent: 3529673 (1970-09-01), Morris

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