MACHINERY FOR PROCESSING COATINGS AND FINISHING ON SURFACES-NAMELY, COATERS, COATING AND SURFACE DRYERS OPERATED BY MOVEMENT OF WARM AIR AND BY RADIATION INCLUDING ULTRAVIOLET AND INFRARED RADIATION, PANEL CLEANERS AND BUFFERS AND MACHINERY FOR LIFTING, CONVEYING, FEEDING AND MOVING PARTS BY BELTS AND ROLLERS AND BY MACHINERY WHICH CHANGES THE ELEVATION OF PARTS RELATIVE TO THE BELTS AND ROLLERS