Collapsible strut

Claim 1

IN COMBINATION WITH A VEHICLE INCLUDING A CHASSIS AND WHEELS CARRYING SAME, THE COMBINATION OF AT LEAST ONE HORIZONTALLY EXTENDING JACK INCLUDING A CYLINDER AND A TUBULAR SHAFT COAXIALLY CARRIED INSIDE THE CYLINDER WITH A LARGE CLEARANCE THEREBETWEEN AND INCLUDING AN OUTER RADIAL FIN ENGAGING THE INNER SURFACE OF THE CYLINDER, MEANS RIGIDLY SECURING THE CYLINDER TO THE CHASSIS, MEANS FEEDING FLUID INTO THE CYLINDER TO PRODUCE AN ANGULAR MOVEMENT OF THE SHAFT WITH REFERENCE TO THE CYLINDER, AT LEAST ONE ROD SLIDINGLY CARRIED INSIDE THE TUBULAR SHAFT AND PROJECTING BEYOND THE CORRESPONDING END OF THE SHAFT OUTSIDE THE CYLINDER, MEANS PREVENTING ROTATION OF THE RODS WITH REFERENCE TO THE SHAFT, AND A STRUT RIGID WITH THE PROJECTING END OF EACH ROD AND ADAPTED TO BE SHIFTED UPON ROTATION OF THE SHAFT BETWEEN AN UPWARDLY RAISED POSITION ALONG ONE SIDE OF THE CHASSIS AND AN OBLIQUE DOWNWARDLY AND OUTWARDLY DIRECTED POSITION ENGAGING GROUND OUTSIDE THE BASE OF SUPPORT OF THE CHASSIS.