Abstract: There are described novel greenish-yellow cationic dyes of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, lower alkyl, lower alkoxy or NO.sub.2,R.sub.2 is unsubstituted lower alkyl, or lower alkyl which is substituted by: hydroxyl, lower alkoxy, halogen, CN, carboxylic acid amide, carboxylic acid alkyl ester or phenyl, or R.sub.2 is alkenyl (C.sub.3 -C.sub.4), theR.sub.3 's independently of one another are each lower alkyl, or both R.sub.3 's together form a carbocyclic 5-, 6- or 7-membered ring,R.sub.4 is hydrogen, lower alkyl, unsubstituted aryl or substituted aryl,R.sub.5, R.sub.6 and R.sub.7 independently of one another are hydrogen, lower alkyl, lower alkoxy, halogen, NO.sub.2, CN or lower alkylsulfonyl, andA is an anion;processes for producing them, and their use for dyeing and printing textile materials, particularly polyacrylonitrile materials.

Abstract: There are described new cationic dyes of the formula ##STR1## wherein R 's independently of one another each represent a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms,X represents CH or N,R.sub.1 represents hydrogen in the case where X=CH, or represents a straight-chain or branched-chain alkyl group having 1 to 6 carbon atoms in the case where X=N,Z represents unsubstituted or substituted alkylene which has 2 to 4 carbon atoms and which can be interrupted by one or more hetero atoms,n represents 0 or 1, andT represents an anion, and the ringsA and/or B can optionally contain further substituents,processes for producing these dyes, and their use for dyeing and printing materials dyeable with cationic dyes, for dope dyeing textile materials consisting of homo- or copolymers of acrylonitrile, and for dyeing wet tow, by which means are obtained yellow dyeings having good fastness properties.

Abstract: A process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or optical brighteners, the solutions of cationic dye salts or brighteners salts which are obtained by this process and which are miscible with water in any proportion, and the use of these solutions for preparing dye liquors and printing pastes for dyeing, optical brightening and printing of, in particular, synthetic textile materials, which process comprises reacting the halide of a cationic dye or brighteners, in an aqueous or anhydrous medium, with at least one water-soluble carboxylic acid in the presence of an epoxide compound having a minimum of 13 carbon atoms.

Abstract: Dyestuffs of the formula (I) ##STR1## wherein F represents a ring system with at least 3 rings which are angularly condensed with one another, n is 1, 2 or 3, and R, R.sub.1 and R.sub.2 represent optionally substituted alkyl groups which can be interrupted by heteroatoms and also represent cycloalkyl, aralkyl, aryl or heterocyclic radicals, R and R.sub.1 can also represent hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a ring with 5 or 6 members, and R and R.sub.2 can combine to form a nitrogen-containing heterocycle.

Abstract: An electromechanical switching system which includes a multi-stage gearbox which has a plurality of manually selectable gear ratios corresponding to a plurality of positions of components which are movable between these positions, apparatus for automatically locating the components in the position corresponding to the selected gear ratio, and a device for locking the gearbox in a selected gear ratio while the operation is running. The position of the components is monitored and an indication provided the operator to prevent the start before the components are correctly positioned.

Abstract: A process for the manufacture of coumarin dyes of the formula ##STR1## wherein Y represents a sulphur or an oxygen atom and the ring B can carry non-ionogenic substituents or substituted or unsubstituted fused rings, and A represents a hydrogen atom, a hydroxyl, alkoxy or phenoxy group, a nitrogen-containing heterocyclic ring system which is fused to two carbon atoms or represents a group --NR.sub.1 R.sub.2, in which R.sub.1 represents a substituted or unsubstituted alkyl or phenyl group, R.sub.2 represents a hydrogen atom or has one of the meanings assigned to R.sub.1, or R.sub.1 and R.sub.

Abstract: A process is described for the dyeing or printing of polyacrylonitrile materials, which process comprises the use of dyes of the formula ##STR1## wherein R.sub.1 represents a low-molecular, straight-chain alkyl group, R.sub.2 and R.sub.3 independently of one another each represent a low-molecular alkyl group, R.sub.4 represents an aralkyl group, n represents 2 or 3, and X.sup..crclbar. represents an anion.The dyeings obtained are distinguished by good build-up properties of the dyes, and the dyes are particularly suitable for trichromatic dyeings.

Abstract: A cationic azo dye of the formula ##STR1## wherein n is 0 or 1, Z represents a divalent radical which completes the ring A to form a 5- or 6-membered ring which can carry a fused and substituted or unsubstituted benzene ring and contain nitrogen, oxygen and/or sulphur atoms as ring atoms, Y represents a substituted or unsubstituted alkyl or aryl radical or preferably a hydrogen atom, X.sup..crclbar. represents an anion, R.sub.1 represents a substituted or unsubstituted alkyl or aryl radical, R.sub.2 represents a substituted or unsubstituted alkyl or benzyl radical, R.sub.3 represents a substituted or unsubstituted alkyl, aralkyl or aryl radical, R.sub.4 represents a group of the formulae --CN, --CONR.sub.5 R.sub.6 and --COOR.sub.7, wherein R.sub.5 and R.sub.6 represent hydrogen atoms or substituted or unsubstituted alkyl, aralkyl or aryl radicals, and R.sub.7 represents a substituted or unsubstituted alkyl or aryl radical, and R.sub.8 represents a substituted or unsubstituted alkyl or benzyl radical.

Abstract: Disclosed is a device for transporting an original to be copied while resting on a supporting surface, preferably a drum, in a reproduction apparatus, comprising: a shaft extending across the width of the supporting surface and being arranged in spaced relationship substantially parallel therewith; a plurality of means in spaced attachment along the shaft and responsive to rotation of the shaft for clamping the leading edge of the original; a flexible strip member commonly covering the clamping means and being adapted to protect the leading edge of the original in the clamped position; means engaging one end of the shaft in an original-receiving position for opening and closing the clamping means by rotating the shaft; and means engaging one end of the shaft in an original-releasing position for opening the clamping means by rotating the shaft.

Abstract: Dyestuffs of the formula (I) ##STR1## wherein F represents a ring system with at least 3 rings which are angularly condensed with one another, n is 1, 2 or 3, and R, R.sub.1 and R.sub.2 represent optionally substituted alkyl groups which can be interrupted by heteroatoms and also represent cycloalkyl, aralkyl, aryl or heterocyclic radicals, R and R.sub.1 can also represent hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a ring with 5 or 6 members, and R and R.sub.2 can combine to form a nitrogen-containing heterocycle.

Abstract: Process for the manufacture of a heterocyclic compound of the formula I ##STR1## in which Y denotes a --CN, --COOR' or ##STR2## group, in which R' can be an optionally substituted alkyl or aryl radical and R" and R"' independently of one another can have the same meaning as R' or can be hydrogen or, conjointly with the nitrogen atom, can form a heterocyclic 5-membered or 6-membered ring and X denotes a --S-- or --O-- atom or a --NR"-- group and the ring A can carry non-ionic substituents or optionally substituted fused rings, wherein a nitrile of the formula IInc -- ch.sub.2 -- y (ii)is reacted, in organic solvents, with a lower alcohol of the formula IIIr -- oh (iii)using a molar ratio of nitrile to alcohol of 1:0.9 to 1:1.2, in the presence of an anhydrous strong acid at temperatures of -10.degree. to +40.degree.

Abstract: A dry heat process for dyeing and printing organic material which can be dyed with cationic dyes, which process comprises the use of carbinol bases of cationic dyes or derivatives thereof, together with at least one indicator dye.

Abstract: Dyestuffs of the formula ##STR1## wherein R, R.sub.1, and R.sub.2 represent optionally substituted alkyl groups that can be interrupted by heteroatoms, and also represent cycloalkyl, aralkyl, aryl, or heterocyclic radicals, R and R.sub.1 can also be hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a 5-membered or 6-membered ring, R and R.sub.2 are able to combine to form a nitrogen-containing heterocycle, B is =O or =NH, and A represents a heterocycle. The new dyestuffs dye synthetic fibers, especially polyester fibers, in greenish yellow shades.

Abstract: Dyestuffs of the formula (I) ##EQU1## WHEREIN F represents a ring system with at least 3 rings which are angularly condensed with one another, n is 1, 2 or 3, and R, R.sub.1 and R.sub.2 represent optionally substituted alkyl groups which can be interrupted by heteroatoms and also represent cycloalkyl, aralykyl, aryl or heterocyclic radicals, R and R.sub.1 can also represent hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a ring with 5 or 6 members, and R and R.sub.2 can combine to form a nitrogen-containing heterocycle.