Tow trailer for vehicle

Claim 1

A tow trailer apparatus for lifting one end of a vehicle and towing same, comprising; A. A main, horizontallay disposed frame assembly including, 1. a forwardly exgending tongue providing coupling means at its forward end for detachable, pivotal connection to a towing vehicle, 2. a transverse axle, forming the rear end of said main frame, rotatably journaling a pair of support wheels at the opposed ends thereof; B. A lift arm assembly including, 1. a transverse bar, normally positioned rearwardly of said axle, 2. a generally transverse clevis bar, pivotally attached rearwardly of said transverse bar and providing, a means fixed to the opposed ends thereof for detachably, adjustably receiving chain means for connection to one end of a vehicle; 3. a pair of lift arms, pivotally connecting between said main frame, forwardly of said axle, and the opposed end portions of said transverse bar; C. A vertical tubular beam, fixed to said main frame adjacent said tongue; D. A hydraulic cylinder disposed within said tubular beam providing an upwardly projecting piston rod, movable between up and down positions. E. A first pulley of a double purchase pulley system, rotatably carried by the upper end of said piston rod; F. A hoist cable, operable by said double purchase pulley system, when said piston rod is extended upwardly, to pivot said lift arm assembly from its normal horizontal, rearwardly extending position to an upwardly extending, forward towing position whereby the weight of a vehicle carried by said lift arm assembly is imposed on said main frame somewhat forwardly of said axle to proportionally distribute the weight between said trailer wheels and the towing vehicle; G. hydraulic actuating means to operate said piston rod between said up and down positions.