Abstract: A coupling for connecting conduits of a vacuum conveying device with each other has a coupling piece to be disposed on a first conduit and a counter coupling piece to be disposed on a second conduit, wherein the second conduit is flexible. The counter coupling piece is insertable into coupling piece. A holding ring is disposed on the second conduit so as to be freely rotatable on the second conduit about an axis of the counter coupling piece. A transponder is supported on the holding ring. A sensor disposed on the first conduit is operatively correlated with the transponder.

Abstract: A holder for securing at least one rod-shaped substrate body having a variable cross-section along the substrate body has a substrate body region BQ1 comprising a surface to be treated. The holder comprises at least one perforated wall as the front wall, the wall having at least one opening, and also comprises a support element and a retaining element. The support element is constructed and/or secured in the opening in such a way that at least part of the substrate body can be arranged longitudinally and obliquely in the support element and the retaining element is constructed and/or secured in the opening in such a way that the retaining element can retain the substrate body at a point between the region BQ1 and the remainder of the substrate body such that the region BQ1 protrudes from the holder through the opening.

Abstract: A coupling for connecting conduits of a vacuum conveying device with each other has a coupling piece to be disposed on a first conduit and a counter coupling piece to be disposed on a second conduit, wherein the second conduit is flexible. The counter coupling piece is insertable into coupling piece. A holding ring is disposed on the second conduit so as to be freely rotatable on the second conduit about an axis of the counter coupling piece. A transponder is supported on the holding ring. A sensor disposed on the first conduit is operatively correlated with the transponder.

Abstract: A pipe for a conveying line for conveying bulk material has an inner pipe and an exterior pipe surrounding at a spacing the inner pipe, wherein an annular space is formed between the inner pipe and the exterior pipe. A spacer is seated on the inner pipe and arranged in the annular space between the inner pipe and the exterior pipe. The spacer centers the inner pipe and the exterior pipe relative to each other. The spacer supports the exterior pipe by an at least 2-point support.

Abstract: A holder for securing at least one rod-shaped substrate body having a variable cross-section along the substrate body has a substrate body region BQ1 comprising a surface to be treated. The holder comprises at least one perforated wall as the front wall, the wall having at least one opening, and also comprises a support element and a retaining element. The support element is constructed and/or secured in the opening in such a way that at least part of the substrate body can be arranged longitudinally and obliquely in the support element and the retaining element is constructed and/or secured in the opening in such a way that the retaining element can retain the substrate body at a point between the region BQ1 and the remainder of the substrate body such that the region BQ1 protrudes from the holder through the opening.

Abstract: A pipe for a conveying line for conveying bulk material has an inner pipe and an exterior pipe surrounding at a spacing the inner pipe, wherein an annular space is formed between the inner pipe and the exterior pipe. A spacer is seated on the inner pipe and arranged in the annular space between the inner pipe and the exterior pipe. The spacer centers the inner pipe and the exterior pipe relative to each other. The spacer supports the exterior pipe by an at least 2-point support.

Abstract: Use of compounds of the formula ##STR1## in which R.sup.1 designates hydrogen, an organic radical, the bonds R.sup.1 --N being C--N bonds, and, in the case in which m is 1, also acyl,R.sup.2 and R.sup.3 designate hydrogen, an organic radical, the bonds R.sup.2 --N and R.sup.3 --N being C--N bonds, and acyl, andm is an integer equal to the indicated valence of R.sup.1,the compounds of the formula I furthermore containing at least one acyl group, as activators for per compounds, bleaching agents and detergents containing these activators, and new triazolidine-3,5-diones.

Abstract: A reconstitutable dry reagent for the turbidimetric determination of lipase, which reagent forms an emulsion upon adding water and comprises substrate oil, protective colloid, emulsifier and activator; and the process for making said dry reagent comprising preparing an aqueous emulsion of a triglyceride containing bile acid salt, colipase, at least 10% by weight of protective colloid, and at least a part of a preserving agent, lyophilizing the emulsion, mixing the lyophilizate with a buffer substance and urea, and recovering said dry reagent.

Abstract: Porous tablets are produced by mixing the tablet components with a liquid solvent which is inert towards the components of the tablet and which freezes at a temperature from about -30 to +25.degree. C, the solvent constituting about 5 to 80% by weight of the total mixture, introducing the mixture into an inert cooling medium at a temperature low enough to solidify the solvent, pressing the mixture including the solidified solvent into tablets at a temperature below the freezing point of the solvent, and then evaporating the solvent from the tablets. Advantageously the solvent is water, cyclohexane, benzene and/or tert.-butanol, optionally containing alcohol. The tablets readily disintegrate in liquid.

Abstract: A sealing device between a reciprocator and a stationary encircling housing comprises first and second rolling diaphragms at opposite ends of the reciprocator and exposed to higher and lower pressures, respectively, diaphragm-supporting liquid in first and second chambers in the respective diaphragms, and pumping means which, owing to the reciprocation, pumps liquid from the second chamber to the first. This means comprises an annular seal carried by the reciprocator, sliding on the housing and acting as a piston and as an inlet non-return valve, and another annular seal carried by the housing, sliding on the reciprocator and acting as an outlet non-return valve.