A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/76, 97/70.9
A01B 13/08 (2006.01) A01B 61/04 (2006.01)
Patent
CA 1043150
Abstract of the Disclosure A subsoil plow having a plurality of forwardly facing C-shaped plow teeth arranged on a rigid frame in a generally V-shaped array. Each plow tooth has an upper portion, a curved shank portion, and a bottom tip and is mounted on the frame by a so-called pivot bolt located directly above the tip of the tooth and by a shear bolt spaced from the pivot bolt, the shear bolt being adapted to fail in shear upon appli- cation of a predetermined load to the plow tooth, such as may be occasioned upon the tooth striking an under- ground object as the plow is pulled through the field, so as to release the tooth and to permit it to swing upwardly and rearwardly about the pivot bolt without the tip of the tooth digging deeper into the ground. Also disclosed is a hitch which enables the plow to readily be coupled to a tractor equipped either with a category 2 or 3N or a category 3 three point hitch with or without an automatic coupler.
279436
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