Abstract: Apparatus for turning a sheet-like workpiece, e.g. a rectangular sheet of glass, and for applying a sealing strip continuously along its edges, includes an air flotation/section support bed (14, 15) covered by an air-permeable mat (16), a sealing strip applicator (32, 59) on a carriage (33), suction cup assemblies (63, 72) mobilely mounted on respective mutually perpendicular slides (24, 25) for gripping the sheet (22) at two adjacent corners thereof, the movement of the assemblies (63, 72) being coordinated such that, while gripping the sheet (22), one assembly (72) is moved towards the initial position of the other assembly (63) and simultaneously the latter (63) is moved towards the corner diagonally opposite the corner at which the first assembly (72) was initially disposed.