Abstract: A setting, in particular for decorative stones made of cut glass, is made of stamped sheet metal. It receives the decorative stone in the manner of a cup, the setting surrounding the stone in the area of its greatest diameter in the manner of a channel. At least the upper edge (3) of the setting (2) clasping the decorative stone (1) has a reduced metal sheet thickness.

Abstract: Setting, in particular for decorative stones made of cut glass, made of stamped sheet metal, which receives the decorative stone in the manner of a cup, wherein the setting surrounds the stone in the area of its greatest diameter in the manner of a channel, and wherein at least the upper edge (3) of the setting (2) clasping the decorative stone (1) has a reduced metal sheet thickness.

Abstract: The invention relates to a process and a device for the rotation-angle-monitored tightening or loosening of screw connections by means of power driven tools. The absolute rotation angle swept over in the screwing operation with respect to a fixed point about a swivel axis through the rotation axis of the screw connection is measured. An advantageous, relative-position free, absolute measurement of the rotation angle is effected by the use of an absolute rotation-rate measuring sensor. The rotation-rate sensor can herein be configured as a mechanical, compass-like gyroscope, as a rotation sensor or as an acceleration sensor, by means of which a measured value correlated with the absolute rotation angle can be recorded.