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: An electric drive unit for a motor vehicle includes an electric motor having a stator that is fixed with respect to a stub axle and a rotor that is rotatably supported with respect to the stub axle. A gear system has its input connected to the rotor for torque transmission. A wheel carrier is connected to the output of the gear system for torque transmission. A first bearing of the wheel carrier is provide on a first axial side of the electric motor facing away from the gear system. A second bearing of the wheel carrier is provided either on the first axial side of the electric motor, or in the gear system, realized in the form of a bearing of a rotatable gear system part connected to the wheel carrier.

Abstract: An electric drive unit for a motor vehicle includes an electric motor having a stator that is fixed with respect to a stub axle and a rotor that is rotatably supported with respect to the stub axle. A gear system has its input connected to the rotor for torque transmission. A wheel carrier is connected to the output of the gear system for torque transmission. A first bearing of the wheel carrier is provide on a first axial side of the electric motor facing away from the gear system. A second bearing of the wheel carrier is provided either on the first axial side of the electric motor, or in the gear system, realized in the form of a bearing of a rotatable gear system part connected to the wheel carrier.

Abstract: An electric drive unit for a motor vehicle, comprising: (a) a stub axle; (b) an electric motor having a stator that is fixed with respect to the stub axle and having a rotor that is rotatably supported with respect to the stub axle; (c) a gear system having its input connected to the rotor for torque transmission; (d) a wheel carrier that is rotatably supported with respect to the stub axle and is connected to the output of the gear system for torque transmission; characterized in (e) that air cooling with air circulation is provided for cooling the rotor of the electric motor; (f) and in that the electric motor has provided therein a heat sink for taking up heat from the circulating air.

Abstract: An electric drive unit for a motor vehicle includes an electric motor having a stator that is fixed with respect to a stub axle and a rotor that is rotatably supported with respect to the stub axle. A gear system has its input connected to the rotor for torque transmission. A wheel carrier is connected to the output of the gear system for torque transmission. A first bearing of the wheel carrier is provide on a first axial side of the electric motor facing away from the gear system. A second bearing of the wheel carrier is provided either on the first axial side of the electric motor, or in the gear system, realized in the form of a bearing of a rotatable gear system part connected to the wheel carrier.

Abstract: An electric drive unit for a motor vehicle comprises an electric motor having a motor housing, a stator mounted in the motor housing and having coil-wound poles, a rotor arranged internally of the stator with an air gap present between the stator and the rotor, and a planetary gear system having a sun wheel, a planet carrier, planet wheels and a ring gear. The planet wheels have a maximum diameter and axial positioning that an imaginary common envelope cylinder for all maximum diameters of the planet wheels is located radially inside of the winding heads present on one axial side of the stator and axially beside the portion of the rotor adjoining the air gap and that the planet wheels project in axial direction outwardly beyond said winding heads either not at all or with less than 50% of their tooth width in engagement with the sun wheel.

Abstract: An electric drive unit for a motor vehicle comprises an electric motor having a motor housing, a stator mounted in the motor housing and having coil-wound poles, a rotor arranged internally of the stator with an air gap present between the stator and the rotor, and a planetary gear system having a sun wheel, a planet carrier, planet wheels and a ring gear. The planet wheels have a maximum diameter and axial positioning that an imaginary common envelope cylinder for all maximum diameters of the planet wheels is located radially inside of the winding heads present on one axial side of the stator and axially beside the portion of the rotor adjoining the air gap and that the planet wheels project in axial direction outwardly beyond said winding heads either not at all or with less than 50% of their tooth width in engagement with the sun wheel.

Abstract: An electric drive unit for a motor vehicle, comprising: (a) a stub axle; (b) an electric motor having a stator that is fixed with respect to the stub axle and having a rotor that is rotatably supported with respect to the stub axle; (c) a gear system having its input connected to the rotor for torque transmission; (d) a wheel carrier that is rotatably supported with respect to the stub axle and is connected to the output of the gear system for torque transmission; characterized in (e) that air cooling with air circulation is provided for cooling the rotor of the electric motor; (f) and in that the electric motor has provided therein a heat sink for taking up heat from the circulating air.

Abstract: An electric machine comprising a stator and a rotor (2) separated by an air gap (12), (a) the rotor (2) being composed with permanent magnets (8) magnetized substantially in circumferential direction, and with one magnetic flux conducting piece assembly (10) of at least one magnetic flux conducting piece (10a; 10b) between two adjacent permanent magnets each; (b) the permanent magnets (8)—when looking at the overall geometry—each having an increasing circumferential width from the head portion on the side of the air gap to the foot portion; (c) and the conducting piece assemblies (10) between two adjacent permanent magnets (8)—when looking at the overall geometry—each having a decreasing circumferential width from the head portion on the side of the air gap to the foot portion, characterized in (d) that the conducting pieces (10a; 10b) at the foot end each have a widened portion in circumferential direction, having at least one shoulder (20) through which they are supported on an a

Abstract: A teeth-cleaning device (1) has a handle (2) which on one end, preferably on two opposite ends, has an interdental treatment element, for example in the form of a fine brush (3) or hard brush (4) and possibly even in the shape of a tooth pick. The treatment element is positioned perpendicular to, and projects from the longitudinal axis of the handle (2), and is removably and replaceably attached by means of a locking element (5) which can be detachably fixed in a locking position. To this end, the treatment element or a holding device forming part thereof, such as a retaining wire (4a), is inserted in the operating position into a hole (6) extending perpendicular to the longitudinal axis of the handle (2). When the locking element (5) clears this hole (6), the treatment element can be removed and a different one inserted. In the locking position, in contrast, the locking element (5) covers the hole (6) and thus prevents the removal of the treatment element inserted into the hole.

Abstract: A machine dishwashing process for cleaning soiled crockery is provided. The process comprises: (1) optionally prewashing the crockery in a prewash zone; (2) washing the crockery in a wash zone with washing liquor; (3) spraying the crockery from the wash zone with a spraying solution; and (4) rinsing the crockery in a clear washing zone. The washing liquor includes used spraying solution from step (3). The spraying solution has an alkali content of at least 0.8 % by weight. An additive which is substantially free of alkali is supplied to the washing liquor to give a concentration in the washing liquor in the presence of the used spraying solution of at least 0.004 % by weight of complexing agent(s) and/or sequestering agent(s).

Abstract: In a flat knitting machine with adjustable sinkers (33), these sinkers are in each case arranged between a needle (43) and a fixed loop-forming web (31) of a needle bed (42) and designed in such a way that they can cooperate with the loop-forming webs (31) forming a draw edge when newly-formed loops are knocked over.

Abstract: An x-ray diagnostics installation has a solid-state image transducer with a layer whose electrical resistance is dependent on the intensity of incident radiation from an x-ray source, and an electro-luminescent layer in contact therewith which converts the resistance into a corresponding brightness value. Due to the decay time of the electro-luminescent layer, an image will be temporarily stored in the solid-state image transducer after the x-ray source has been deactivated. This temporarily stored image is read-out, after deactivation of the x-ray source, by a scanner for converting the brightness of the picture elements of the electro-luminescent layer into corresponding electrical signals. These signals are supplied to a data acquisition and processing system, which generates an image for display.

Abstract: An x-ray image intensifier has an electrode system for focusing electrons, produced by the incidence of x-radiation on the input luminescent screen, onto the output luminescent screen. An electrode of the electrode system is applied as a coating to the interior of a one-piece electrode substrate, which forms the envelope of the vacuum vessel of the x-ray image intensifier, and a voltage is applied to the coating so that the potential field continuously increases in the space between the input luminescent screen and the output luminescent screen.

Abstract: The present invention pertains to novel (2-oxo-pyrrolidine-1)-acetic hydrazides, methods for preparation and subsequent treatment therewith, and pharmaceutical preparations containing the same.

Abstract: The present invention pertains to novel (2-oxo-pyrrolidine-1)-acetic hydrazides, methods for preparation and subsequent treatment therewith, and pharmaceutical preparations containing the same.

Abstract: The process provided for the production of high-purity 1,3-bis-(.beta.-ethexyl)-5-amino-5-methyl-hexahydropyrimidine, also known as hexetidin, by reacting 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine with naphthalene-1,5-disulphonic acid in a solvent to selectively precipitate the novel intermediate compound 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine-naphthale ne-1,5-disulphonate, which is separated off, treated with aqueous alkali to produce 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine, and subsequently hydrogenated to produce high-purity hexetidin.

Abstract: The process provided for the production of high-purity 1,3-bis-(.beta.-ethexyl)-5-amino-5-methyl-hexahydropyrimidine, also known as hexetidin, by reacting 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine with naphthalene-1,5-disulphonic acid in a solvent to selectively preciptitate the novel intermediate compound 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine-naphthale ne-1,5-disulphonate, which is separated off, treated with aqueous alkali to produce 1,3-bis-(.beta.-ethylhexyl)-5-nitro-5-methyl-hexahydropyrimidine, and subsequently hydrogenated to produce high-purity hexetidin.The invention relates to an industrially practicable process for the manufacture of high-purity 1,3-bis(.beta.-ethylhexyl)-5-amino-5-methyl-hexahydropyrimidine of the formula ##STR1## which is also known by the name of hexetidin and in view of its antimicrobial activity is used as an antiseptic and insecticide.From M.