MACHINERY FOR CORRECTING DEFECTS IN AUTOMOBILE WHEELS, INCLUDING TIRE TRUEING MACHINES, ELECTRICAL AND ELECTRONIC PASSENGER CAR AND WHEEL SPIN BALANCERS TO DETERMINE THE AMOUNT AND LOCATION OF THE UNBALANCED PARTS OF AUTOMOBILE TIRES AND WHEELS, ROLLER BEARING WHEEL SETS, JACK RAMPS, UNIVERSAL TRUCK ADAPTORS FOR DISC-TYPE WHEELS, AND GAUGES FOR RAPIDLY DETERMINING THE AMOUNT OF OUT OF TRUENESS OF WHEELS AND TIRES