Abstract: The present disclosure relates to a protective structure for the protection against moving masses, namely avalanches, rockfalls, mudslides and loggings, having a plurality of ballast-filled wall elements, which are arranged in a manner adjacent to each other and spaced apart on a bearing surface, and having a respective connection arrangement between two adjacent wall elements which connects the two adjacent wall elements and enables relative movement between the two wall elements. The wall elements are movable in relation to the bearing surface and in relation to each other by the moving mass, namely avalanche, rockfall, mudslide or logging, for dissipative energy conversion.

Abstract: The present disclosure relates to a protective structure having a plurality of supports arranged spaced apart from each other; having a trapping device which is guided on the supports via at least one support cable arrangement; and having a ground anchorage for free ends of the at least one support cable arrangement. The ground anchorage is designed as a deadman anchorage.

Abstract: The invention relates to a tilting table array for micro-positioning objects, preferably for defined generation of oscillating movements of optical objects, such as for instance mirror elements in projection lens arrays, including a tilting table carrying the object and connected to at least one drive element as well as a tilting table housing that is coupled to the tilting table via an elastic connection. According to the invention, the tilting table, the tilting table housing and the elastic connection comprise one monolithic unit.

Abstract: Various forms of a disc brake hold down spring are disclosed, the spring having two legs disposed in a V-shape and being elastically swingable in respect of each other. In a first form, the legs extend axially and are each formed with a wing loop with one side of the wing being lockable in an undercut opening in the housing while the opposite wing side engages the backplate of at least one brake show. In a second form, the legs extend circumferentially have ends engaging the brake shoes, with a central section received in a brake housing guide opening.