Abstract: A welding device for welding a stud to a substrate along a welding axis in a welding direction, comprising an inert gas cover with a welding chamber and a holding device holding the stud within the welding chamber during welding, wherein the cover has an input channel, a distribution chamber, a multiplicity of first connecting channels and an inert gas inlet into the welding chamber, wherein an inert gas feed line can be connected to the input channel, the input channel opening into the distribution chamber, the first connecting channels opening into the distribution chamber at different distances from the input channel, the first connecting channels connecting the distribution chamber pneumatically to the inert gas outlet, and wherein a common cross-sectional area of the first connecting channels is all the greater, the greater the distance from the input channel at which the first connecting channels open into the distribution chamber.

Abstract: A fastening device for fastening an element to the slot of a C-profile rail with a gripping element which can be inserted through the slot into the interior of the profile rail and which can be turned in the profile rail around at least one screw-in axis in such a way that it grips behind the leg of the profile rail that delimits the slot is provided. The gripping element has at least one receptacle that runs perpendicular to the screw-in axis and that serves to secure a threaded rod.

Abstract: A fastening device for fastening an element to the slot of a C-profile rail with a gripping element which can be inserted through the slot into the interior of the profile rail and which can be turned in the profile rail around at least one screw-in axis in such a way that it grips behind the leg of the profile rail that delimits the slot is provided. The gripping element has at least one receptacle that runs perpendicular to the screw-in axis and that serves to secure a threaded rod.

Abstract: A conduit hanger with at least one bracket element to receive a pipe, with a load-distribution plate that is placed into the bracket element, and with a fastening device for fastening the load-distribution plate to the bracket element. The fastening device has at least one catching element to grip the bracket element as well as a counter-bearing element, which are arranged offset on the load-distribution plate in the lengthwise direction of the plate, and between which a holding space is formed for the bracket element, and that the front of the bracket element has at least one recess that corresponds to the catching element so that the bracket element can be placed into the holding space.

Abstract: A clamp for linking a mounting rail to a flange of a beam is disclosed. The clamp includes a lower base, an upper base, a connecting web, and a T-shaped back-gripping element, which is disposed at the lower base for gripping a rail opening of the mounting rail from behind. In the upper base, a threaded hole, which corresponds to the lower T-shaped back-gripping element, is provided for a clamping screw, with which the flange and the mounting rail can be pressed against one another when the lower T-shaped element grips a rail opening of the mounting rail from behind. In the lower base, a threaded hole, which corresponds to an upper T-shaped back-gripping element, is provided for a clamping screw, with which the flange and the mounting rail can be pressed against one another when the upper T-shaped element grips a rail opening of the mounting rail from behind.

Abstract: A conduit hanger with at least one bracket element to receive a pipe, with a load-distribution plate that is placed into the bracket element, and with a fastening device for fastening the load-distribution plate to the bracket element. The fastening device has at least one catching element to grip the bracket element as well as a counter-bearing element, which are arranged offset on the load-distribution plate in the lengthwise direction of the plate, and between which a holding space is formed for the bracket element, and that the front of the bracket element has at least one recess that corresponds to the catching element so that the bracket element can be placed into the holding space.

Abstract: The invention relates to a channel joining system (21) with a mounting channel (32) and two joining parts (22) for joining the mounting channel (32) to a support (16). The mounting channel (32) has an installation opening (36) that runs along the longitudinal extension of the mounting channel (32), that has a clear width (B) running perpendicular to the longitudinal extension and that, in one of the profile walls (34), has several fastening openings (37) that are at a distance from each other in the longitudinal extension of the mounting channel (32). The fastening openings (37) each have a clear length (L) running in the direction of the longitudinal extension of the mounting channel (32) and a clear width running perpendicular thereto. Each joining part (22) has a contact section (23), a holding section (24) and a fastening section (27).