Abstract: Device and process for fast cooling and solidifying of molten materials with a metal oxide base. The device comprises two metal cylinders with parallel axes, which rotate in opposite directions and are cooled. The metal cylinders exhibit a corrugated surface, and an elevation on the surface of one cylinder in each case engages in the recess of the surface of the other cylinder with formation of a gap. The melt is poured into the gap, drawn by force and simultaneously cooled under pressure.

Abstract: Device and process for fast cooling and solidifying of molten materials with a metal oxide base. The device comprises two metal cylinders with parallel axes, which rotate in opposite directions and are cooled. The metal cylinders exhibit a corrugated surface, and an elevation on the surface of one cylinder in each case engages in the recess of the surface of the other cylinder with formation of a gap. The melt is poured into the gap, drawn by force and simultaneously cooled under pressure.

Abstract: A fuse or triggering device for a small bomb arranged in an artillery grenade, which includes a percussion fuse constituted of a striker and a detonator. The above-mentioned artillery grenade contains a plurality of small bombs arranged behind each other, which are ejected at a predetermined point in the trajectory of the artillery grenade. Each small bomb possesses an autonomous fuse. A slider containing the detonator is secured in a safety position, in that the slider lies against an outwardly pivotable securing lever which lies resiliently prestressed against the inner wall of a further small bomb, and in which the striker is fixed in position between the slider and a securing disc which is deformable in response to the firing acceleration of the artillery grenade.