Abstract: In the case of a pipe connection for connecting a first pipe end (1) to a second pipe end (6), with a sealing ring (13) sealing the intermediate space between the pipe ends (1, 6), and a tensible pipe clamp (14) which fits over the pipe ends (1, 6) and in which a toothed anchoring ring (9) is mounted, said anchoring ring pressing the toothed inside (10) of the anchoring ring (9) against the surface of an associated pipe end (6) when the pipe clamp (14) is tightened, simplified handling and a high compressive strength are achieved in that the first pipe end (1) is widened in a sleeve-shaped manner such that the second pipe end (6) can be pushed into the widened portion (2), in that the pipe clamp (14) has an internal contour which fits over the sleeve-shaped widened portion (2) of the first pipe end (1) in a form-fitting manner counter to a pull-out direction (A1) for releasing the pipe ends (1, 6) from each other, and in that the anchoring ring (9) is positioned to bear only against the second pipe end (6).

Abstract: In the case of a pipe connection for connecting a first pipe end (1) to a second pipe end (6), with a sealing ring (13) sealing the intermediate space between the pipe ends (1, 6), and a tensible pipe clamp (14) which fits over the pipe ends (1, 6) and in which a toothed anchoring ring (9) is mounted, said anchoring ring pressing the toothed inside (10) of the anchoring ring (9) against the surface of an associated pipe end (6) when the pipe clamp (14) is tightened, simplified handling and a high compressive strength are achieved in that the first pipe end (1) is widened in a sleeve-shaped manner such that the second pipe end (6) can be pushed into the widened portion (2), in that the pipe clamp (14) has an internal contour which fits over the sleeve-shaped widened portion (2) of the first pipe end (1) in a form-fitting manner counter to a pull-out direction (A1) for releasing the pipe ends (1, 6) from each other, and in that the anchoring ring (9) is positioned to bear only against the second pipe end (6).

Abstract: An emergency drain for dewatering an area (F) accumulating water via a discharge opening (6) connected to a drainpipe (4), with which water dammed up above a minimum dammed height (H) can be led away, having a weir (7) for damming up the water up to the minimum dammed height (H) and a top wall (8) arranged at a distance from the discharge opening (6) to prevent air being sucked into a vortex forming in the discharge opening (6), the weir (7) being arranged around the discharge opening (6) and the top wall (8), as seen from the discharge opening (6), extending as far as the other side of the weir (7), is improved with regard to the flow performance and the development of noise by the fact that the weir (7) has a cross section which, at the base of the weir (7) resting on the area (F), is provided in the flow direction (S) with a substantially greater width than at the highest point of the weir (7) over which the water flows.

Abstract: In order to manufacture large-size porous shaped bodies of low density by swelling clay masses by supplying heat thereto, a plate-like, self-supporting clay mass is used, it is given an all-round support by direct acting, multiple linear solid body contact and at the same time maintained in constant motion relative to the support, and the surface of the swelling clay mass is subjected to constant oxidation by the supply of oxidizing hot gases to the surfaces of the plate-like moving clay mass.

Abstract: An apparatus for gas/solids exchange has a column having a plurality of vertically spaced grates on which the granular solids can form beds to be traversed by the gas. Each grate is provided in a grate plane by a plurality of fixed grate bars interdigitated with movable grate bars forming a planar unit which can be displaced by a controller out of the grate plane to allow the granular solids on the respective grate to trickle downwardly uniformly over the cross section of the column onto the next lower grate.

Abstract: In the process for the thermal and/or chemical treatment of grained, granular or lump material in plane heaps, the latter are transported with free intervals, in stages, from top to bottom through a shaft and are traversed by gases. The heaps lay on grates of which the bars may be taken out at least partially from the grate plane, temporarily and spatially, in such a way that the different heaps are disaggregated and fed in the form of a uniform gripping flow to the next stage so that a constant layer cross-section thickness is maintained. The introduction and evacuation of the gases are effected through side openings provided in the shaft wall in the cross-section which is not filled with the heaps.

Abstract: In the thermal process for treating swellable granulates of clay or the like, the granulates are entered in heaps (4) with free intervals between them into a shaft (1) and traverse said shaft (1) by stages from top to bottom. The heaps (4) are supported by grates (2) of which the bars may be temporarily and at least taken out from the plane of the grate (2) so that the various heaps (4) are fed in the form of a temporarily regulated trickling flow to the next stage, so that a constant thickness with respect to the cross-section is maintained. In the various stages, the heaps (4) are traversed by hot gases introduced sideways into the shaft (1) and exhausted on the other side according to a direction perpendicular to the plane of the layer.