Combination articulated tractor and tow car

Claim 1

A tow bar assembly for use on large tractors wherein heavy forces having horizontal components are exerted by implements connected to the tractor's hitch, said tractor having a lifting device which includes a pair of outwardly diverging arms, said assembly comprising an integral supporting plate adapted to be detachably mounted rigidly between said arms in a substantially horizontal disposition, a coupling member for towing loads pivotally connected to said plate, said supporting plate including securing means for said coupling member outward relative to its pivotal connection to said supporting plate whereby said coupling member may be affixed relative to said supporting plate in a plurality of different positions, a further supporting plate being located parallel to said first mentioned supporting plate and secured rigidly thereto, said coupling member being between said supporting plates are pivotally connected to each said supporting plate, said securing means extending from one said supporting plate to the other said supporting plate, said supporting plates including a pair of supporting members rigidly connected to each of said plates on both sides thereof, said supporting members bearing against said arms and being connected thereto, said arms having closing plates attached thereto which extend toward each other and are adapted to be received between said supporting plates.