Abstract: The invention relates to a method for supplying at least one analysis apparatus with at least one liquid. In the method, the liquid is kept available in a storage tank, from where it is transported into at least one buffer tank. The liquid is fed to the analysis apparatus from the buffer tank, whose filling level is monitored. Here, the buffer tank is arranged above the analysis apparatus and the storage tank is arranged below the analysis apparatus. The invention also relates to a device for carrying out this method as well as to an analysis apparatus in which this device is employed.

Abstract: The invention relates to a method for supplying at least one analysis apparatus with at least one liquid. In the method, the liquid is kept available in a storage tank, from where it is transported into at least one buffer tank. The liquid is fed to the analysis apparatus from the buffer tank, whose filling level is monitored. Here, the buffer tank is arranged above the analysis apparatus and the storage tank is arranged below the analysis apparatus. The invention also relates to a device for carrying out this method as well as to an analysis apparatus in which this device is employed.

Abstract: Compounds of the formula (I) in which A represents N or a cyanomethylene radical, B represents S, O or NH and R1, R2, R3 and x have the meaning given in the description, are highly suitable for dyeing and printing high-molecular-weight materials, in particular automotive cover fabrics.

Abstract: Compounds which correspond to the formula (I) or tautomeric forms thereof ##STR1## wherein R.sub.1, R and x have the meaning given in the description,are particularly suitable for dyeing and printing hydrophobic synthetic or semi-synthetic materials, in particular car cover fabrics.

Abstract: Benzimidazole-isoindolenines of the formula (I) ##STR1## wherein A represents N or a cyanomethylene radical,R.sup.1 represents a saturated or unsaturated, optionally substituted aliphatic radical having 4 to 20 C atoms, in particular 5 to 8 C atoms, which is optionally interrupted by one or more oxygen atoms andR.sup.2 denotes hydrogen, halogen, in particular Cl and Br, C.sub.1 -C.sub.4 -alkyl, a saturated or unsaturated aliphatic oxyradical having 1 to 4 C atoms which is optionally substituted by C.sub.1 C.sub.4 -alkoxy, CN or NO.sub.2, R.sup.2 not being hydrogen if R.sup.1 represents n-butyl,are outstandingly suitable for dyeing fully synthetic or semi-synthetic high molecular weight substances, in particular fiber materials, such as polyester.

Abstract: Novel thiozolylisoindolenine dyestuffs of the formula (I) ##STR1## have been found in which A represents N or a cyanomethylene radical,B represents a radical of the formula C(CN)COOR.sub.5 or N--R.sub.6and the remaining substituents have the meanings given in the description. The invention also relates to mixtures thereof, a process for their preparation and their use for dyeing hydrophobic synthetic materials.

Abstract: A method for recording the removal of material during high precision finishing work pieces that must be of an extremely precise shape and must withstand extreme stress, as required especially in the aviation industry, is provided which ensures that the work piece has a hardened layer of a required minimum thickness at all stressed or load-carrying positions.

Abstract: A grinding wheel for producing internal profilings is provided. A grinding disk is disposed at the front end of a rod-like grinding machine arm at the respective angle of slope of the internal profiling that is to be produced. The grinding disk is adapted to be driven by a drive shaft, which is disposed at the other end of the arm, via a drive that extends through the arm. In order, with a simple construction and the use of a disk having a profile that corresponds to the internal profiling that is to be produced, to make it possible to set the grinding disk to the respective angle of slope of the internal profiling that is to be produced, the drive includes a belt that is disposed in the arm and that via respective belt pulleys connects the drive shaft with an intermediate shaft mounted in the front end of the arm.

Abstract: Preparation of diazo compounds by transfer of diazo groups to activated methylene compounds, characterized in that an azidoformamidinium salt is used as the diazo group transferring agent, and also preparation of azo compounds by this route.

Abstract: A halftone gravure printing ink(A) about 2 to about 20% by weight of colorant,(B) about 10 to about 40% by weight of resin and(C) about 80 to about 50% by weight of solventwherein said colorant comprises azo dyestuff of the formula ##STR1## in which A.sub.1, A.sub.2 and A.sub.3 denote hydrogen, halogen, --CN, --NO.sub.2, C.sub.1 -C.sub.6 -alkyl, cycloalkyl, C.sub.1 -C.sub.18 -alkoxy, optionally substituted phenoxy, optionally substituted C.sub.1 -C.sub.18 -alkylsulphonyl, optionally substituted phenylsulphonyl, optionally substituted sulphamoyl, optionally substituted carbamoyl, optionally substituted phenylazo, C.sub.1 -C.sub.18 -alkoxycarbonyl, --CF.sub.3, --SCN, C.sub.1 -C.sub.12 -alkylmercapto, C.sub.1 -C.sub.6 -alkylcarbonyl, optionally substituted phenylcarbonyl or --OH,A.sub.4 and A.sub.5 denote hydrogen, halogen, optionally substituted C.sub.1 -C.sub.6 -alkyl, optionally substituted C.sub.1 -C.sub.6 -alkoxy, --NH--CO--CH.sub.2 CH.sub.2 OA.sub.8, --NH--CO--A.sub.8, --NH--SO.sub.2 --A.sub.

Abstract: Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##STR2## with a dihydroxy or polyhydroxy compound.

Abstract: Azobarbituric acid derivatives characterized in that in their free acid form they have the following tautomeric structure are disclosed: ##STR1## The azobarbituric acid derivatives are characterized in that X and Y rings can each carry one or two substituents from the series comprising .dbd.O, .dbd.S, .dbd.NR.sub.7, --NR.sub.6 R.sub.7, --OR.sub.6, --SR.sub.6, --COOR.sub.6, --CN, --CONR.sub.6 R.sub.7, --SO.sub.2 R.sub.8, ##STR2## alkyl, cycloalkyl, aryl and aralkyl, the total number of the endocyclic and exocyclic double bonds for each of the rings X and Y being three.The new azobarbituric acid derivatives are other than those of azobarbituric acid, azouracil and uracil-5-azobarbituric acid and their salts. The compounds are useful as pigments which pigments are useful for pigmented paints, in printing inks, distempers or emulsion paints, inter alia.

Abstract: New inclusion compound, intercalation compounds or solid solutions which are the nickel salts or nickel complexes of a compound which, in one of its tauteromeric structures, corresponds to the formula ##STR1## which contain at least one other included compound, except for one composition of matter which consists of 45 to 82% by weight of azobarbituric acid/nickel 1:1 complex, 3 to 15% by weight of benzene-sulphonamide, 5 to 20% by weight of nickel acetate and 10 to 20% by weight of water and the use of these materials as pigments are disclosed.

Abstract: A method and device for fine profiling or shaping tools coated with super-hard material, for example cubic crystalline boron nitride or diamond, especially tools coated with a single layer and having a prescribed or predetermined profile or shape. The rotatably driven tool is profiled or shaped in the region of the cutting surface by a clustered electron or laser beam which is controlled in a course corresponding to the prescribed shape or contour of the tool, and is oriented tangential to the tool; the profiling is accomplished by vaporization of the crystal tips or points which project from the desired profile. The cutting surface may be roughened in conformity to the desired profile after the fine profiling or shaping thereof. The rotatably drivable tool, and the device which produces the electron or laser beam, are mounted in such a way that a relative movement can be carried out along a prescribed path or course between the tool and the electron or laser beam, which is oriented tangential to the tool.

Abstract: Compounds which, in one of their tautomeric structures, correspond to the formula ##STR1## in which the ring A can carry 1, 2, 3 or 4 identical or different substituents, processes for their preparation and their use as intermediate products for the preparation of dyestuffs.

Abstract: An apparatus for grinding of internal, axially extending profiles, particularly for flanks on spline bore hub profiles and inner toothing, and driven by an electric motor, comprising a grinding arm of mandrel shape having a grinding wheel mounted on both sides therein, a toothed belt completely disposed inside of and running in the grinding arm operatively driving the grinding wheel. Gear wheels and the toothed belt thereabout are disposed in a channel formed in the grinding arm. An encapsulating shield completely encapsulates the grinding arm, the mounting for the grinding wheel, the toothed belt and the gear wheels. The channel constitutes a feed for oiled pressurized air to the mounting for the grinding wheel, and the grinding arm is formed with at least one separate grinding-oil channel adjacent the first mentioned channel for feeding grinding-oil to outside of the encapsulating shield adjacent the grinding wheel.