Abstract: In a card reader (40) with at least two transport rollers (23, 24, 25) for the card (3) arranged one after the other in the card infeed direction, the transport rollers (23, 24, 25) are provided on a pivot arm (21, 22), which can be pivoted against the action of a restoring force in a plane at right angles to the card path, at a distance from the pivot axis (26, 27) of the pivot arm (21, 22). When a transport roller on the pivot arm is deflected by the card thickness of a card that has been fed in, all transport rollers lying further from the pivot axis are also deflected, i.e. pivoted out of the card path, by more than the card thickness.

Abstract: In a card reader (40) with at least two transport rollers (23, 24, 25) for the card (3) arranged one after the other in the card infeed direction, the transport rollers (23, 24, 25) are provided on a pivot arm (21, 22), which can be pivoted against the action of a restoring force in a plane at right angles to the card path, at a distance from the pivot axis (26, 27) of the pivot arm (21, 22). When a transport roller on the pivot arm is deflected by the card thickness of a card that has been fed in, all transport rollers lying further from the pivot axis are also deflected, i.e. pivoted out of the card path, by more than the card thickness.

Abstract: In order to assure a reliable insertion into the data exchange position even of cards with strongly bent downwards surface in longitudinal direction for a card reader (1), into which a data storage card (2) can be inserted for information exchange, with a card guide (4,5) which guides the card (2) approximately horizontally into its data-exchange position, which card guide is interrupted downwards in a section in the direction of insertion (3), the length (L) of said interrupted section is less than the normal card length, and with a drop opening (8) for cards (2′) of shorter length than normal cards (2) provided beneath the interrupted section (7), where when in the data exchange position, the front end (2a) of the card rests against a support (11) in the card reader (1), a stopping segment (15) extends, counter to the direction of insertion (3), from the support (11) to beneath the interrupted section (7) of the card guide.

Abstract: The present invention relates to a process for the preparation of 5-fluoroanthranilic alkyl esters and/or 5-fluoroanthranilic acid, which comprises dissolving a 3-fluorobenzoic alkyl ester in sulfuric acid and reacting the solution with a nitrating acid at from -10.degree. to 30.degree. C., then adding water, separating off the nitrated reaction product and reacting it with hydrogen at from 50.degree. to 120.degree. C. under elevated pressure in the presence of a catalyst comprising a metal of the platinum group and sulfur, and, if desired, removing 5-fluoroanthranilic alkyl esters by distillation and hydrolyzing them to give 5-fluoroanthranilic acid.

Abstract: The present invention relates to a process for the preparation of 5-fluoroanthranilic acid, which comprises reacting 5-fluoro-2-bromotoluene in the presence of a catalyst and of an acidic solvent, with oxygen or an oxygen-containing gas at from 80.degree. to 220.degree. C., separating off the 5-fluoro-2-bromobenzoic acid formed and reacting it with ammonia at from 70.degree. to 180.degree. C.

Abstract: The present invention relates to a process for the preparation of 1,2-bis-(2-nitrophenoxy)-ethane, by reacting 1 mole of ethylene glycol with about 190 to about 250 mol % of 2-chloronitrobenzene at temperatures of about 40.degree. to about 100.degree. C. with the addition of an alkali metal hydroxide in dimethylacetamide.

Abstract: The present invention relates to a process for the preparation of 2-amino-3-chlorobenzoic acid by dissolving 1 mol of 2,3-dichlorobenzoic acid in about 400 to about 2000 parts of water with at least the equimolar amount of an alkali metal hydroxide or with an aqueous solution of the equimolar amount of an alkali metal hydroxide, and subsequently reacting it with about 500 to about 2500 mol % of ammonia at temperatures of about 150.degree. to about 220.degree. C. in the presence of copper bronze, copper(I) salts and/or copper(II) salts.

Abstract: Aromatic copolyamides are described, which are soluble in organic amide solvents. The polymers are composed to at least 95 mol % of repeat structural unitsA: --OC--AR--CO--B: --HN--Ar'--NH--C: --HN--Ar"--NH-- ##STR1## in the combinations A+B+C+D, or A+C+D+E and up to 5 mol % of m-bond-containing structural units F and/or G derived from aromatic dicarboxylic acids (F') and/or from aromatic diamines (G'), the sum total of the mole fractions of structural units A+F and the sum total of the mole fractions of the structural units of B+C+D+E+G being essentially the same, --Ar-- and --Ar'-- are divalent aromatic radicals whose C--N valence bonds are in a para-position or in a similar coaxial or parallel position and which may be substituted by one or two inert radicals, such as lower alkykl or halogen, ##STR2## is a trivalent aromatic radical which after removal of the --SO.sub.2 R group has the same meaning as --Ar-- or --Ar'-- or else is the structural unit ##STR3## wehre X is --O--, --NHCO--, --SO.sub.