Abstract: A fire-extinguishing device is furnished, wherein an aerosol is generated in a single container or in a plurality of containers by burning a solid extinguishing agent. The aerosol streams and flows into the area to be protected along a nondirect path through annular channels or directly through a sieve floor.

Abstract: A sprinkler for automatic fire extinguishing plants according to the dry system is furnished for rooms subjected to and endangered by freezing and frost. Such plants are furnished in particular in case of the presence of a suspended ceiling with downwardly branching pipe pieces. In order to adapt the downwardly branching pipe pieces to the prevailing construction conditions, the branching pipe pieces are furnished by two pipe pieces screwed to each other. The two pipe pieces exhibit a support body at the upper end and a sprinkler at the lower end. The two parts are connected via two rods or pipes, screwed to each other, to form the special sprinkler.