Multi-section folding tool bar for agricultural implements

Abstract From the Canadian patent

A folding sectional tool bar for agricultural implements and including a series of articulated hollow sections connected together in end-to-end fashion so as to provide an inner main-section, a pair of outer sections and, a pair of intermediate sections. An offset hinge joint between each outer section and its adjacent intermediate section permits them to be latched in an aligned working arrangement and allows generally horizontal folding of the outer sections forwardly relative to the adjacent intermediate sections. An offset hinge joint between each intermediate section and its adjacent main section permits the intermediate sections to float down about 5° relative to the main section and …