Automobile parking attachment

Claim 1

IN A VEHICLE HAVING A LONGITUDINAL TRANSMISSION SHAFT, A PAIR OF AXLES DISPOSED TRANSVERSELY TO THE TRANSMISSION SHAFT, A GROUND-ENGAGING ROAD WHEEL SUPPORTED AT EACH END OF EACH AXLE, AND SUSPENSION MEANS DISPOSED BETWEEN THE AXLES AND THE VEHICLE, A WHEEL ASSEMBLY FOR USE IN PARKING OR MOVING THE VEHICLE AND COMPRISING A PAIR OF TRANSVERSELY-SPACED ARMS PIVOTALLY CONNECTED TO THE UNDERSIDE OF THE VEHICLE FOR MOVEMENT IN A TRANSVERSE PLANE, THE ARMS BEING OF A LENGTH GREATER THAN THE DISTANCE BETWEEN THE UNDERSIDE OF THE VEHICLE AND THE GROUND, A GROUNDENGAGING WHEEL CARRIED AT THE PIVOT-REMOTE END OF EACH ARM, A DRIVING WHEEL AT THE OTHER END OF EACH ARM AND ENGAGEABLE WITH THE TRANSMISSION SHAFT, DRIVE MEANS OPERATIVELY CONNECTING THE DRIVING WHEEL AND THE GROUNDENGAGING WHEEL OF EACH ARM, A PISTON-AND-CYLINDER DEVICE CONNECTED BETWEEN EACH ARM AND THE UNDERSIDE OF THE VEHICLE TO EFFECT PIVOTING MOVEMENT OF THE ARMS FROM A SUBSTANTIALLY HORIZONTAL POSITION, WHEREIN THE DRIVING WHEELS ARE SPACED FROM THE TRANSMISSION SHAFT AND THE GROUND-ENGAGING WHEELS ARE CLEAR OF THE GROUND, DOWNWARDLY AND INWARDLY TO A SUBSTANTIALLY UPRIGHT POSITION WHEREIN THE DRIVING WHEELS ARE IN DRIVING ENGAGEMENT WITH THE TRANSMISSION SHAFT, THE GROUND-ENGAGING WHEELS ARE IN CONTACT WITH THE GROUND, AND THE VEHICLE SUSPENSION MEANS IS COMPRESSED DUE TO THE LENGTH OF THE ARMS, AND VICE VERSA.