Abstract: A centrifuge (10), in particular a laboratory centrifuge, comprising a rotor (12) for receiving containers with material to be centrifuged, a drive shaft (14) on which the rotor (12) is supported, a motor (18) which drives the rotor (12) via the drive shaft, a bearing unit (30) with damping elements (36) each having a spring axis (36a), and a support element (54) for fixing the motor (18) in the centrifuge via the bearing unit (30), wherein the spring axes (36a) of the damping elements (36) are placed at an acute angle ? to the rotational axis Y of the motor (18). The invention is characterized in that the bearing unit (30) comprises a plurality of struts (34), preferably 3 to 21, which are connected to the damping elements (36), wherein the struts (34) are placed and arranged so that they are concentrically aligned with the respective spring axis.

Abstract: The invention relates to a centrifuge (10), in particular a laboratory centrifuge, comprising a rotor (12) for receiving containers with material to be centrifuged, a drive shaft (14) on which the rotor (12) is supported, a motor (18) which drives the rotor (12) via the drive shaft, a bearing unit (30) with damping elements (36) each having a spring axis (36a), and a support element (54) for fixing the motor (18) in the centrifuge via the bearing unit (30), wherein the spring axes (36a) of the damping elements (36) are placed at an acute angle ? to the rotational axis Y of the motor (18). The invention is characterized in that the bearing unit (30) comprises a plurality of struts (34), preferably 3 to 21, which are connected to the damping elements (36), wherein the struts (34) are placed and arranged so that they are concentrically aligned with the respective spring axis.

Abstract: Improved dyestuff solutions for the dyeing of leather contain 5 to 30 parts by weight of a dyestuff, 20 to 80 parts by weight of an alkoxy alcohol of the formula (I)R--O--(--A--O--).sub.n --H (I),10 to 40 parts by weight of a lactone, lactam or cyclic urea and 5 to 50 parts by weight of water.

Abstract: A universally usable process for preparing azo dyestuffs by oxidative coupling consists in carrying out the oxidation in the presence of redox mediators with a standard potential of 0.2-1.5 volts and, if appropriate, an additional oxidizing agent with a standard potential of 0.25-2.5 volts, wherein the sum of the oxidation equivalents should be at least 4. The preferred redox mediator is iodine. The process is particularly suitable for the preparation of heteroaromatic azo dyestuffs using an aniline coupling component.

Abstract: The apparatus for checking persons for radioactive contamination comprises two detector panels (1, 2), each of which is provided on one broadside with detectors. The two detector panels (1, 2) extend at an angle to each other and said angle has an apex which defines a vertical axis. Those broadsides of the detector panels which are provided with detectors face the space included by the detector panels. Adjacent detectors of each detector panel are separated from each other by a vertical blank strip, which is so arranged relative to the contour of a reference figure (6) in a top plan view that the signals generated by the detector means which are separated by the blank strip (9, 10) can be processed to compensate the influence of the closest approximation of the reference figure to the detector panel on the generation of said signals. Adjacent detector means on each side of the vertical blank strip may be separated by a horizontal blank strip. The apparatus may be provided with underarm boxes.

Abstract: An apparatus for checking persons for radioactive contamination comprises at least two detector panels (1, 2), which are interconnected and extend at an angle to each other and are provided each with detectors on at least one broadside. Said detector panels define a space for accommodating a person to be checked. The apex of the angle defines a vertical axis of rotation for the detector panels, which are interconnected to form a subassembly. Resetting drive means are disposed between the axis of rotation and the rigid subassembly. A revolving door is provided in a lock chamber for checking persons for radioactive contamination. A tread surface is provided by a floor plate carrying a foot detector, which is disposed between the vertical detector panels when they are in position of rest.