Abstract: The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water.

Abstract: A handheld power tool, including a housing wall and a fan device with an air intake and an air outlet in the housing wall. The fan device has an air guide, and an outflow space is delimited between, on the one hand, the housing wall at the air outlet and, on the other hand, an outflow side of the air intake, as well as laterally by a first surface contour and by a second surface contour of the air guide. The first surface contour and the second surface contour each extend from the housing wall to the outflow side of the air-intake means, and the air-guiding element is shaped in such a way that the size of the cross-sectional surface of the outflow space increases continuously crosswise to the outflow direction of the air intake in the outflow direction.

Abstract: The invention relates to acid-resistant, hydraulically setting masses based on a) slag sand, b) one or more pozzolanas, c) one or more fillers, d) one or more polymers based on ethylenically unsaturated monomers, and water.

Abstract: A mounting rail with a C-shaped cross-section extends in a length dimension (L) and has a rear or second wall (2) with side walls (1a, 1b) extending at right angles to the second wall. Each side wall (1a, 1b) has on its exterior surface (5) a recess (3) running in the length dimension (L), whose cross-section is essentially rectangular. To assure optimum stability of the mounting rail, the depth (t) of the recess (3) is less than the wall thickness (d) of the side walls (1a, 1b).

Abstract: A fastening device for securing tubes, pipes and the like is formed of a mounting rail (3) having a C-shaped cross-section and an elongated space (2) and a retaining plate (1). The retaining plate (1) has a tapped through hole running transverse to the elongated space (2), the tapped hole has an internal thread for form-locking reception of a fastening element. Further, the retaining plate (1) has on the side (13) facing inwardly from the elongated space (2), at least one web facilitating rigidity and positioning, in order to provide a manageable and economical fastening device with high load capacities (P).

Abstract: A mounting rail with a C-shaped cross-section extends in a length dimension (L) and has a rear or second wall (2) with side walls (1a, 1b) extending at right angles to the second wall. Each side wall (1a, 1b) has on its exterior surface (5) a recess (3) running in the length dimension (L), whose cross-section is essentially rectangular. To assure optimum stability of the mounting rail, the depth (t) of the recess (3) is less than the wall thickness (d) of the side walls (1a, 1b).

Abstract: A fastening device for securing tubes, pipes and the like is formed of a mounting rail (3) having a C-shaped cross-section and an elongated space (2) and a retaining plate (1). The retaining plate (1) has a tapped through hole running transverse to the elongated space (2), the tapped hole has an internal thread for form-locking reception of a fastening element. Further, the retaining plate (1) has on the side (13) facing inwardly from the elongated space (2), at least one web facilitating rigidity and positioning, in order to provide a manageable and economical fastening device with high load capacities (P).

Abstract: A composite piston for ejecting a plastic mass from a receptacle includes a piston head and a pressure component which in combination form a chamber. The piston head and pressure component are displaceable within the receptacle from an insertion position into a locked position. When being moved into the locked position, a part of the plastic mass flows through an opening in the piston head into the chamber. After the locked position is established, the opening in the piston head is closed by an extension on the pressure component.