A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/76
A01B 61/04 (2006.01)
Patent
CA 1118265
Abstract of the Disclosure In an agricultural implement for use in ground breaking procedures including a frame adapted to be moved over the underlying terrain in a given direction, at least one ground breaking tool, a pivot connecting the tool to the frame for pivotal movement thereon about a generally horizontal axis generally transverse to the direction of movement between a forwarding ground breaking position and a rearward inoperative position and releasable means inter- connecting the tool and the frame for normally holding the tool in the forward position and for releasing the tool for movement to the rearward position upon the tools encounter- ing resistence sufficient to damage the implement. The in- vention contemplates the improvement wherein the releasable means is a replaceable, fracturable element interconnecting the frame and the tool at a location remote from the pivot and disposed in a plane generally transverse to the pivot axis so that resistence encountered by the tool will place the element in tension with little or no compression force imposed on the element. Upon fracture, the element is there- by stretched as opposed to being expanded and therefore is easily replaced.
344340
Lear Siegler Inc.
Meredith & Finlayson
LandOfFree
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