Abstract: The invention relates to a method for the operation of several autoclaves of an autoclave battery in which steam is carried in the circuit, whereby at least part of the steam carried in the circuit is brought to a higher pressure-temperature level from a relatively lower pressure-temperature level by means of a mechanically driven compressor, e.g., a turbocompressor, piston compressor or screw compressor without live steam supply. The invention also concerns an apparatus consisting of an autoclave battery in which steam is carried in the circuit in lines with shut-off valves, characterized by at least one compressor in the steam circulatory system.

Abstract: Method and device for the continuous application of a layering mass on boards, whereby a rotating application roller and a rotating smoothing roller located directly behind the application roller in the direction of transport of the boards are used which can be separately driven and adjusted in height, a transport means for the boards is located under the rollers, and a scraper is associated with the smoothing roller. The layering mass is applied to the boards with the application roller and smoothed with the smoothing roller, which rotates counter to the direction of transport of the boards. The layering mass is a mineral fresh mortar which is applied to the boards in the area of the lower gusset between the rollers. The application roller rotates counter to the direction of transport of the boards.