A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/17
A01B 3/34 (2006.01) A01B 3/421 (2006.01)
Patent
CA 1125562
A B S T R A C T A frame of a reversible plow having plow shares that are directed to the right and to the left. The frame is turned by means of a piston connected to a turning shaft of the frame, the turning of the cylinder being controlled by an automatic reversing valve. The valve has a fixed hous- ing and a movable shaft. Peripheral grooves are present in either the housing or shaft through which hydraulic oil is supplied from one side of the piston to the other side there- of.
350788
Aktiebolaget Overums Bruk
Stewart & Kolash Ltd
LandOfFree
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