Duplex implement hitch

Claim 1

A tractor drawn duplex implement and hitch combination convertible from a side by side operating position of the implement units to a tandem transport position thereof comprising, a transverse drawbar having hitch means thereon for attachment to the tractor, a pair of implement units in side by side relation having draft means projecting forwardly therefrom, pivot means connecting said draft means to opposite ends of said drawbar to accommodate swinging of the implement units in opposite directions relative to the drawbar to a tandem position in alignment with and at opposite ends of the drawbar, and optionally operable auxiliary tongue means on the rear of one of said implement units attachable to the tractor upon disconnection thereof from said hitch means to accommodate transporting the implement with the implement units and drawbar in longitudinal alignment with the tractor, said drawbar supported in both operating and transport positions by ground-engaging wheels, said wheels being adapted for castering in the operating position of the implement and drawbar and optionally operable means being provided for locking one of said wheels against castering in the tandem transport position of the implement, releasable locking means for connecting the inner ends of said implement units in their side by side operating position to hold them in spaced relation, said locking means being releasable to accommodate relative swinging movement of the implement units into alignment with the drawbar and tractor when the latter is connected to said auxiliary tongue for transporting the implement, and said hitch means including a draft link pivotally mounted on said hitch means for folding from an inoperative position within the confines of said hitch means to an operative forwardly projecting position for connecting to the tractor, means being provided for rigidly securing said draft link to the hitch means in the operating position of the implement.