Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
212 words
In an agricultural implement-carrying trailer attachable behind the draw-bar of a tractor, the combination of a frame, a hitch pivoted from the front end of the latter for attachement to said draw-bar, a wheel at the rear of the frame, an arm from the center of the wheel making a pivotal connection with the rear end of the frame, and means on the frame to swing the arm on said connection for raising and lowering the frame in relation to the wheel, said agricultural implement carrying frame having front and rear portions, agricultural earth engaging implements supported from said frame, said arm from the wheel being pivoted intermediate its ends a frontal arm pivotedly secured to said front end portion of said frame, a telescoped rod connecting the free end of the other end of said first mentioned arm to said frontal arm at a location spaced from the pivot of said frontal arm, a link connecting said frontal arm to said pivoted hitch, and a power unit mounted on said frame and connected to said frontal arm to swing said frontal arm, said rod and said first mentioned arm for raising and lowering said frame in relation to said wheel whereby said agricultural implements are engaged and disengaged from the earth.
Claim 2
Dependent Claim
212 words
In an agricultural implement-carrying trailer attachable behind the draw-bar of a tractor, the combination of a frame, a hitch pivoted from the front end of the latter for attachement to said draw-bar, a wheel at the rear of the frame, an arm from the center of the wheel making a pivotal connection with the rear end of the frame, and means on the frame to swing the arm on said connection for raising and lowering the frame in relation to the wheel, said agricultural implement carrying frame having front and rear portions, agricultural earth engaging implements supported from said frame, said arm from the wheel being pivoted intermediate its ends a frontal arm pivotedly secured to said front end portion of said frame, a telescoped rod connecting the free end of the other end of said first mentioned arm to said frontal arm at a location spaced from the pivot of said frontal arm, a link connecting said frontal arm to said pivoted hitch, and a power unit mounted on said frame and connected to said frontal arm to swing said frontal arm, said rod and said first mentioned arm for raising and lowering said frame in relation to said wheel whereby said agricultural implements are engaged and disengaged from the earth.
Claim 3
Dependent Claim
35 words
The structure of claim 1, and a castor wheel carried by the hitch the castor wheel extensible to serve as a wheeled frontal support for the frame when the hitch is detached from the draw-bar.
Claim 4
Dependent Claim
20 words
The invention according to claim 1 in which the end of the first mentioned arm carrying the wheel extends rearwardly.
Claim 5
Dependent Claim
28 words
The invention according to claim 1 in which means are provided to adjust the effective pivotal movement of the hitch with respect to the movement of the wheel.
Claim 6
Dependent Claim
45 words
The invention according to claim 1 in which the frontal arm is an angle lever and the effective length of one of the arms of the angle lever can be adjusted to vary the relative extent of the movement of the wheel and the hitch.