Auxiliary tool bar lift mechanism

Claim 2

Apparatus for swingably connecting first and second tool bars, comprising a first tool bar for supporting a plurality of implements, an elongated frame connected to one end of said first tool bar and having a portion extending outwardly beyond the same in a plane generally parallel to the axis of said first tool bar, a second tool bar for supporting a plurality of implements, means for pivotally mounting one end of said second tool bar on said outwardly extending portion of said frame so that the end of the second tool bar is contiguous to the end of the first tool bar and the tool bars normally are disposed in coextensive relationship but permit movement of one tool bar relative to the other, said frame extending away from the contiguous ends of said tool bars, power means carried by said frame, said power means being connected to said second tool bar adjacent to the outwardly extending portions of said frame, and said frame engaging said first and second tool bars adjacent to their contiguous ends only, whereby implements carried by said tool bars can be located in a selected position along the lengths of said tool bars and operation of said power means moves one of said tool bars relative to the other.

Claim 3

The structure of claim 1 in which said power means includes a fluid cylinder having a piston rod connected to said second tool bar.

Claim 4

The structure of claim 1 including stop means to limit movement of said movable tool bar, and means for holding said second tool bar against said stop means.

Claim 5

Apparatus for swingably connecting a main tool bar to an auxiliary tool bar, each of the tool bars supporting a plurality of earth-working implements in selected positions, said apparatus comprising an elongated frame connected to one end of the main tool bar and having a portion extending outwardly beyond the same in a plane generally parallel to the axis of the main tool bar, means for pivotally mounting one end of the auxiliary tool bar on said outwardly extending portion of said frame so that the end of the auxiliary tool bar is contiguous to the end of the main tool bar and the main and auxiliary tool bars normally are disposed substantially in coextensive relationship with each other, said frame extending away from the contiguous ends of the tool bars in a plane along the axis of said main tool bar to a position spaced from and overlying the main tool bar, fluid cylinder means swingably carried by said frame, lug means mounted on the auxiliary tool bar adjacent to the outwardly extending portions of said frame, said fluid cylinder means being connected to said lug means, means for operating fluid cylinder means, and said frame engaging the main and auxiliary tool bars adjacent to their contiguous ends only so that implements carried by said main and auxiliary tool bars are freely movable to selected positions along the lengths of the same and operation of said fluid cylinder means causes the auxiliary tool bar to swing about the pivotal mounting on said frame.

Claim 6

Apparatus for swingably connecting a main tool bar to an auxiliary tool bar, each of the tool bars supporting a plurality of earth-working implements in selected positions, said apparatus comprising an elongated frame connected to one end of the main tool bar and having a portion extending outwardly beyond the same in a plane generally parallel to the axis of the main tool bar, means for pivotally mounting one end of the auxiliary tool bar on said outwardly extending portion of said frame so that the end of the auxiliary tool bar is contiguous to the end of the main tool bar and the main and auxiliary tool bars normally are disposed substantially in coextensive relationship with each other, said frame extending away from the contiguous ends of the tool bars in a plane along the axis of said main tool bar to a position spaced from and overlying the main tool bar, fluid cylinder means swingably carried by said frame, lug means mounted on the auxiliary tool bar adjacent to the outwardly extending portions of said frame, said fluid cylinder means being connected to said lug means, means for operating fluid cylinder means, and said frame engaging the main and auxiliary tool bars adjacent to their contiguous ends only so that implements carried by said main and auxiliary tool bars are freely movable to selected positions along the lengths of the same and operation of said fluid cylinder means causes the auxiliary tool bar to swing about the pivotal mounting on said frame.