Abstract: A measuring device for the interface of a transmission path with full-duplex transmission in the common carrier duplex process. A highly integrated interface unit is connected to the interface via a hybrid set and a transmitter on one side. A line termination or a network termination is connected as the test object on the other side. In order to perform measurements on the test object with such a measuring device relatively easily and accurately, a device simulating the arrangement of a hybrid set, a transmitter and a line or network termination is provided and with its connected to the highly integrated interface unit via a high-resistance differential amplifier, and its output connected to an input of a subtractor. Another input of the subtractor is connected to the interface via an additional differential amplifier. The output of the subtractor is connected to a measurement system.

Abstract: In the continuous rolling of wire from a heated billet in a continuous wire-rod mill in which the rolled product passes through the rolling stand of a roughing line and an intermediate line, the finish rolling is effected in at least one finish rolling line having double rolling stands with respective pairs of horizontal and vertical rolls. The double stands or units are spaced apart and along a portion of the spacing between them, rolling stretches are provided.

Abstract: A process for preparing catalytic converters, especially bodies of motor vehicle catalytic converters of modular design, by pushing monoliths and a surrounding support jacket into prefabricated tubes, whose cross section essentially corresponds to the profile of the monolith plus an addition for the support jacket. The dimensions of the tube (housing) are adapted to a constant gap (s) from the monolith by sizing (calibrating) the prefabricated tubes which initially have a smaller cross section.

Abstract: A level measuring set for low-frequency signals with superimposed direct voltage includes a low-pass filter, a measuring rectifier, and a subtractor. A low-frequency measurement signal is supplied to the low-pass filter, which outputs a reference potential (U.sub.B) which corresponds to the direct voltage. The reference potential (U.sub.B) is applied to a reference point of the measuring rectifier. The measuring rectifier forms a positive and a negative direct voltage component (+U.sub.M, -U.sub.M) superimposed on the reference potential (U.sub.B) for the positive and negative half-waves of the low-frequency signal, respectively. The subtractor receives at inputs thereof the positive and negative direct voltage components (+U.sub.M, -U.sub.M) superimposed by the reference potential (U.sub.B) and emits a level measurement value of the low-frequency measurement signal.

Abstract: To improve the uniformity and the adhesive strength of luminophore layers, a process is proposed in which the luminophore is enveloped with glass flux and the enveloped luminophore is applied to a luminophore carrier at elevated temperatures by using acrylic resin.

Abstract: A locking device for a system of laid pipes comprises a gasket 2 and one or more assembled components which form a hollow cylinder 4 surrounding and accommodating the gasket, the hollow cylinder incorporating an anchoring groove 8. The gasket is elastic and has a solid body portion 9, an integral annular heel member 10, and a plurality of embedded anchoring inserts.

Abstract: Betaine group-containing polysaccharides with recurring anhydroglucose units of the average, general formula ##STR1## are disclosed. In this formula the R.sup.1 groups are the same or different and represent methyl, ##STR2## in which n=2 or 3, m=0 to 10, p=0 to 10 and R.sup.2 is a hydrogen atom or the betaine group ##STR3## in which R.sup.3 and R.sup.4 are the same or different and represent an alkyl group with 1 to 4 carbon atoms and R.sup.5 is a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms, with the proviso that at least 0.5% of the R.sup.1 groups in the polysaccharide molecule represent the betaine group.Also disclosed is a method for the synthesis of these compounds and their use in cosmetic preparations, expecially for the care of the hair. In addition, novel compounds of the general formula ##STR4## are disclosed as intermediates in which the substituents R.sup.3, R.sup.4 and R.sup.5 have the above meaning.

Abstract: Betaine group-containing polysaccharides with recurring anhydroglucose units of the average, general formula ##STR1## are disclosed. In this formula the R.sup.1 groups are the same or different and represent methyl, (C.sub.n H.sub.2n O).sub.m R.sup.2 or ##STR2## in which n=2 or 3, m=0 to 10, p=0 to 10 and R.sup.2 is a hydrogen atom or the betaine group ##STR3## in which R.sup.3 and R.sup.4 are the same or different and represent an alkyl group with 1 to 4 carbon atoms and R.sup.5 is a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms, with the proviso that at least 0.5% of the R.sup.1 groups in the polysaccharide molecule represent the betaine group.Also disclosed is a method for the synthesis of these compounds and their use in cosmetic preparations, especially for the care of the hair. In addition, novel compounds of the general formula ##STR4## are disclosed as intermediates in which the substituents R.sup.3, R.sup.4 and R.sup.5 have the above meaning.

Abstract: A process is disclosed for producing a low-reflection luminophore layer in which an aluminum-plated metal plate is annealed under vacuum, and the luminophore is sintered onto the surface thus blackened by means of glass solder.

Abstract: Betain group-containing derivatives of carboxymethylcellulose are disclosed. They are characterized in that all or a portion of the carboxymethyl groups are or is replaced by groups of the general formula ##STR1## wherein R.sup.1 is hydrogen or methyl group,R.sup.2 is a divalent aliphatic hydrocarbon group with 2 to 5 carbon atoms,R.sup.3, R.sup.4 is an alkyl group with 1 to 4 carbon atoms,R.sup.5 is a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms,with the proviso that, on the average, at least 0.1 betaine groups are contained for each anhydroglucose unit of the polymeric molecule.Also, a method for the synthesis of these compounds and their use in cosmetic preparations, especially for the care of hair, are disclosed. In addition, novel derivatives of carboxymethylcellulose with tertiary amino groups are taught as intermediates. In these derivatives, all or a portion of these groups are or is replaced by groups of the general formula ##STR2## in which the substituents R.sup.1, R.sup.2, R.sup.

Abstract: Derivatives of carboxymethylcellulose are disclosed in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula ##STR1## in which R.sup.1 is a hydrogen or methyl group,R.sup.2 is a divalent aliphatic hydrocarbon group with 2 to 5 carbon atoms,R.sup.3, R.sup.4 are alkyl groups with 1 to 4 carbon atoms,R.sup.5 is an alkyl group with 1 to 4 carbon atoms or a benzyl group,X is a halogen or sulfate group or a sulfonic acid group,with the proviso that, on the average, at least 0.1 quaternary ammonium groups are contained per anhydroglucose unit of the polymeric molecule.The invention furthermore relates to derivatives of carboxymethylcellulose, in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula ##STR2## in which the substituents R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the above meaning, with the proviso that, on the average, at least 0.

Abstract: Thickeners of the general formula ##STR1## wherein R.sup.1 is alkyl with 18 to 36 carbon atoms,R.sup.2 is hydrogen, methyl or a group of the general formula --(CH.sub.2).sub.x R.sup.3,R.sup.3 being a COOR.sup.4 group, in which R.sup.4 is hydrogen or alkyl with 1 to 4 carbon atoms, ora --O[C.sub.r H.sub.2r O--].sub.y R.sup.5 group, in which R.sup.5 is hydrogen, alkyl with 1 to 4 carbon atoms or acyl, r=2 or 3 and y.gtoreq.0,x=2 to 12,n.gtoreq.20 and m=0 to 0.5n,are disclosed for hydrocarbon oils, ester oils and vegetable oils. The thickeners are incorporated in the oil in amounts of 2 to 10% by weight, based on the oil.The organopolysiloxanes, effective as thickeners, are usable for many purposes, are effective in small concentrations and are physiologically safe. They are therefore suitable for thickening cosmetic or pharmaceutical preparations based on hydrocarbons, ester oils and vegetable oils.

Abstract: Silver halide emulsions are prepared by precipitation, transfer of the silver halide emulsion from the precipitation chamber into a separate circuit comprising a cleaning stage for the removal of dispersion medium and compounds soluble therein and exit into a collecting vessel.

Abstract: Organopolysiloxanes that have betaine groups and are of the general formula ##STR1## in which R.sup.1 can represent the same or different groups in the molecule and may be an alkyl radical with 1 to 18 carbon atoms, an aryl radical or a polyoxyalkylene radical with the proviso that at least 70% of the R.sup.1 radicals are methyl radicals,R.sup.2 may be the same as R.sup.1, with the proviso that at least one R.sup.2 radical represents the ##STR2## in which R.sup.3 and R.sup.4 are different, one radical representing a hydroxyl group, and the other the ##STR3## in which R.sup.5 and R.sup.6 are the same or different and represent an alkyl radical with 1 to 4 carbon atoms or a benzyl radical, and n=1, 2, or 3,x has a value of 0 to 200, andy has a value of 1 to 50,as well as processes for their synthesis and their use in cosmetic preparations.

Abstract: A boring, milling, thread cutting or analogous machine has a frame for a work supporting table and a first carriage which is reciprocable in the X-direction. The first carriage supports an open-and-shut magazine for a supply of spare tools as well as a second carriage which is movable in the Y-direction. The second carriage supports a headstock which is movable with a vertical tool spindle in the Z-direction. The magazine is opened in automatic response to movement of the second carriage in the Y direction and to a predetermined position in which the tool spindle can be relieved of the tool thereon by being lifted upwardly. An indexing mechanism of the magazine then places a selected tool into the path of downward movement of the spindle so that, when the spindle descends, the freshly selected tool is automatically coupled thereto. The second carriage is thereupon moved in the direction of the Y-axis to enable the magazine to become shut.

Abstract: Organopolysiloxanes that have betaine groups and the following general formula ##STR1## in which R.sup.1 can represent the same or different groups in the molecule and may be an alkyl radical with 1 to 18 carbon atoms, an aryl radical or a polyoxyalkylene radical with the proviso that at least 70% of the R.sup.1 radicals are methyl radicals,R.sup.2 may be the same as R.sup.1, with the proviso that at least one R.sup.2 radical represents ##STR2## in which R.sup.3 is a divalent alkylene radical with 2 to 12 carbon atoms,R.sup.4 is a divalent alkylene radical with 2 to 6 carbon atoms,R.sup.5 and R.sup.6 are the same or different and represent an alkyl radical with 1 to 4 carbon atoms or a benzyl radical, andn=1, 2, or 3,x has a value of 0 to 200, andy has a value of 1 to 50, as well as processes for their synthesis and their use in cosmetic preparations, especially in hair care products.

Abstract: A sealing arrangement for sealing two tubular members of a floor care device has an elastic ring provided on one of the tubular members and having radially outer and radially inner lips arranged in a V-shaped manner, and a V-shaped edge provided on the end face of the other of the tubular members and cooperating with the radially outer lip of the elastic ring upon movement of the tubular members toward one another.

Abstract: The invention relates to an ink jet printer comprising at least one nozzle from which ink is adapted to issue under high pressure in the form of fine droplets, a charging apparatus for charging the droplets, a deflector unit, a collecting apparatus provided with a knife edge for collecting and discharging droplets of a specific charge, and a recording support arranged downstream of the movable knife edge wherein the collecting apparatus is provided with a cleaning device and an extraction device which are such that a new or freshly cleaned part of the knife edge always faces droplets being separated.

Abstract: Non-aqueous inks having an electric conductivity of at least 10.sup.-4 Ohm.sup.-1 cm.sup.-1, a viscosity of at most 5 cP at 20.degree. C. and in which the liquid medium consists completely or predominantly of one or more solvents having each an evaporation index of less than 11 are most useful for the ink-jet recording process in which a jet of ink is ejected from a nozzle by application of pressure and after its breaking up into droplets is modulated according to the information to be recorded. Such inks are particularly useful for writing on non-absorbent surfaces.

Abstract: A housing in a vacuum cleaner is subdivided into a first space and a separate second space which does not communicate with the first space but is in heat-exchanging relationship with the first space. An impeller is located in the second space for sucking dust-laden air into one end of the second space and discharging it out the other. The drive motor for the impeller means is located in the first space. Thus, the drive means is not contacted by the dust-laden air passing through the second space but is nevertheless cooled by such dust-laden air.