Abstract: A drier for wood chips and other bulk materials includes an incinerator for indirectly heating a drying apparatus. The drier operates in a circulatory gas operation with a high water vapor load. All drier exhaust gases are fed to the incinerator and thermally post-combusted there. The drying apparatus includes two drier lines. The first line is heated with the heat of the inflowing vapor, the heat being removed from the exhaust gas flow in a gas-gas heat exchanger and supplied to the vapor feedback. The second drier line includes a heat register, whose heat is extracted from the exhaust gases in a heater, which is arranged directly after the incinerator and reduces the exhaust gas temperature to approximately 500.degree. to 600.degree.. The gas-gas heat exchanger can thus be embodied as a simple sheet metal structure.

Abstract: A sliding/lifting roof for motor vehicles having a cover closing an opening in the roof in its closed position and, at both longitudinal sides of the opening in the roof, being guided in a slideable manner, by means of a respective guiding member in a longitudinal guide. The cover is disposed so that it can be pivoted around a swivel axis extending transversely, is connected, via a tilt-out mechanism, with a drive member, and, by a sliding of the drive member, can be swung out, while lifting its rear edge, above the roof surface, or is slideable, by lowering its rear edge, under the fixed roof surface. The tilt-out mechanism has a link that is connected with the drive member and a tilt-out lever that engages with the link, with the tilt-out lever being rotatably coupled to the cover and, with respect to the link, being longitudinally movable in the sliding direction of the roof by a certain distance as well as being swingable.