Abstract: A linear ball bearing for longitudinally movable mounting of a shaft-like guide rail in a part surrounding the guide rail, which has a sleeve-like cage with recesses arranged one behind the other in the circumferential direction holding ball circuits which have at least one supporting section with supporting balls which are supported such that they can roll on the guide rail. The supporting balls are also supported such that they can roll on a raceway of a supporting race element inserted indirectly or directly into the cage. The supporting race element has at least one radial outer surface, arched outward at least in one direction, for contact against an inner surface of the part which surrounds the guide rail. The outer surface is formed by at least one web-like projection extending in the longitudinal direction of the supporting race element.

Abstract: In an energy management system for a motor vehicle, the system has an energy manager that contains a computing unit. Connected to the energy manager are a memory device and a plurality of electrical system components that include energy-producing devices, energy storage devices, and consumers of energy. Various possible operating states are assigned to each of the energy producers and energy storage devices, and these states are represented as the summation of an energy producer and of zero, one, or a plurality of what are known as virtual energy consumers.

Abstract: A method for the pre-treatment of titanium components for the subsequent coating thereof is provided. The method includes at least the following steps: a) etching of the component in an acidic solution containing fluoride and nitric acid (HNO3); b) activation pickling of the etched component in a solution containing at least sodium nitrate (NaNO3) and tetrafluoroboric acid (HBF4); and c) activation of the activation-pickled component in a bath containing acid or in an acidic bath containing nickel.

Abstract: The invention relates to a method for coating or decoating a component, in particular a gas turbine component, wherein, in order to regionally or partially coat or decoat a component, the component is preferably completely covered with a covering medium, and wherein the covering medium is removed from only those surface regions of the component in which the coating or decoating of the component is supposed to take place, so that a surface region of the component which is not to be coated or decoated is covered by the covering medium. According to the invention, the covering medium is removed by means of water jet machining.

Abstract: A method for the selective removal of one or more layers from a power unit component, e.g., a turbine blade of a heavy-duty turbine, using high-energy radiation of such a wavelength that the supplied energy is so strongly absorbed by the layer to be removed in each case that the removal threshold of the specific material of the layer to be removed is exceeded, while this removal threshold is not reached in the subsurface to be preserved, a spectrometer connected to a control unit via a light-conducting fiber cable such that the method-specific characteristic values are determinable by spectroscopic methods during the removal of the respective layer and are used for the self-regulating process limitation.

Abstract: This invention relates to improved water-swellable material that can significantly withstand deformation by an external pressure, thus showing improved liquid handling properties. In particular, this invention relates to water-swellable material with an improved absorbent capacity/permeability balance. This invention also relates to a water-swellable material, comprising water-swellable polymers and elastomeric polymers, said material being typically in the form of particles, which comprise a core of water-swellable polymer(s) and a shell of said elastomeric polymer(s), whereby the water-swellable material is such that it can withstand deformation due to external pressure. The invention also relates to a specific process of making the specific water-swellable material of the invention.

Abstract: An insulating material housing has a holding section, which is designed for holding a switching tube and which is fitted with an input connecting piece, and a drive section, which connects to the holding section in a longitudinal direction, has a drive opening for introducing a drive movement into the switching tube, and which is fitted with an output connecting piece. A ventilation shaft is provided that communicates with an inner space of the drive section. The object is to provide an insulating material housing of this general type with which, even in the event of large currents, a sufficiently high cooling capacity is provided. To this end, the ventilation shaft surrounds the holding section in the shape of a collar.

Abstract: A circuit breaker pole for interrupting the electric current is insulated by a solid material and has a dimensionally stable and electrically non-conducting insulating material housing, a switching tube fastened in the insulating material housing and having a stationary fixed contact and a movable mobile contact. An input connection piece is electrically connected to the fixed contact and contactable from outside, and an output connection piece is connected to the mobile contact via a movable contact connection. The output connection piece is linked with the insulating material housing in a fixed manner and has a contact surface that can be contacted from outside. The insulating material housing has an opening for inducing a driving motion into the movable contact. The mobile contact connection is fixed to the output connection piece by connecting devices that act upon the contact surface. The circuit breaker pole is inexpensive and easy to install.

Abstract: A process and a device for prediction of the thickness of a layer of a coating or paint applied upon an object by dip painting. The paint layer thickness (h) at at least one point on the surface of the object (2) is predicted. A correlation between the paint layer thickness and the current density in the paint layer (3) is empirically determined. Further, a correlation between the specific resistance of the paint layer (3) and the current density in the paint layer (3) is empirically determined. Depending upon the value of the applied voltage, the electrical potential at the point is calculated. The current density, the paint layer thickness and the specific resistance of the paint layer (3) at the point following dip coating are calculated. For this the electrical potential at the point as well as two correlations are employed.

Abstract: A method and a device for controlling at least one operating parameter of an electrolytic bath may provide for the production of improved quality platings, in which the use of chemicals may be reduced. The concentration of at least one bath component is determined, and the concentration values are processed in a control device in order to obtain correcting variables of a control element, in which the operating parameter is changed in line with setpoint values. The concentration is determined by extracting a sample from the bath. The sample is excited by electromagnetic radiation, and the spectrum of the light emitted by the sample is analyzed. The device includes an installation for transferring at least one sample of a bath to an array for determining the concentration. The array for determining the concentration of at least one bath component includes a laser directed at the sample, and the array for determining the concentration includes an array for spectral analysis of the light emitted by the sample.

Abstract: A process for manufacturing glass bodies of doped silicate glass is disclosed. The process involves flame hydrolysis, wherein precursors for the forming of the doped glass are fed together with fuel gases into a single burner. A first formed body is generated on a target. The doped silicate glass produced in this way offers a low density of defects and a small breadth of striae. Preferably the first formed body is subsequently formed into a second formed body having a larger breadth and a smaller length than the first formed body. Thereby, the breadth of striae and the density of defects in the doped silica glass is further reduced.

Abstract: A method for the selective removal of one or more layers from a power unit component, e.g., a turbine blade of a heavy-duty turbine, using high-energy radiation of such a wavelength that the supplied energy is so strongly absorbed by the layer to be removed in each case that the removal threshold of the specific material of the layer to be removed is exceeded, while this removal threshold is not reached in the subsurface to be preserved, a spectrometer connected to a control unit via a light-conducting fiber cable such that the method-specific characteristic values are determinable by spectroscopic methods during the removal of the respective layer and are used for the self-regulating process limitation.

Abstract: A device for producing optically homogeneous, streak-free quartz glass bodies having a large diameter including a furnace or melting device having an inner chamber with a pair of openings opposite one another. One or more movable burners are displaceable into one of the openings and the respective glass body to be produced is located in the other opening. Both the burner and glass body are movably positioned. In the course of the production of the quartz glass body, a relative movement is effected in the axial and radial directions between the burner and the quartz glass body such that the distance from the burner outlet opening pertaining to the quartz glass body decreases as the distance from the burner to the X-X axis of the quartz glass body increases.

Abstract: For improving the refractive index homogeneity of quartz glass bodies, at least one burner is disposed movably in a melting device with respect to the quartz glass object which is to be produced. The burner has three essentially concentrically disposed groups of nozzles for metering the raw material, supplying the hydrogen and supplying the oxygen. Corresponding to the changes in the distribution of OH and H2 between the center and the edge of the quartz glass object, the volumes of hydrogen and/or oxygen of the burner gases flowing change as a function of the burner position with respect to the quartz glass object in order to bury the mixing ratio in the burner gas.

Abstract: The invention is concerned with a device and a process for drying air in ventilation devices for fuel tanks and gas drying in fuel tanks via vapor permeable membranes and sorbents.

Abstract: A variable rate cardiac pacemaker is adapted to be implanted in a human patient for automatically adapting pacing rate to metabolic need of the patient when the patient is walking in an ascending path, a descending path, or on a level plane. An accelerometer senses the activity of the patient walking, and produces an electrical sensor signal representative of the activity. The accelerometer signal has variable parameters indicative of morphology, including amplitude, of the sensor signal according to status of activity of the patient and to the upward, downward, or horizontal direction of the patient's walking. A pulse generator generates pacing pulses at a variable rate according to an applied control signal to electrically stimulate the patient's heart at a pacing rate which varies according to patient activity.

Abstract: A pneumatic diaphragm control element for a fuel injection apparatus for internal combustion engines, in particular for supercharged diesel engines, has a thrust rod that is axially displaceable between two end stop counter to the force of a restoring spring, which thrust rod acts upon a control member of the fuel injection apparatus and is connected to a pressure-actuated diaphragm. One end stop determines the position assumed by the thrust rod when there is no pressure and is embodied as a stop screw for the thrust rod. The second end stop defines the position assumed by the thrust rod with maximal pressure being exerted on the diaphragm, and to this end cooperates with a counterpart stop that is adjustably coupled with the thrust rod.

Abstract: A plastics comb comprising a center wall and cell walls with normal height at both sides of the center wall is made-up of seveal parts. An injection-moulded center wall and injection moulded cell walls, which are produced separately are connected with each other. The diameter of the cell chamber at the bottom of the cell is larger than that of the cell opening. For breeding queens corresponding combs are provided with a center wall and with cell walls at one side thereof, which are removable from the center wall. The individual cells have cell bottoms, which are entirely or partly exchangeable, for example, as a locking element separate from the cell bottom.

Abstract: Bees are maintained and bred within a bee compound unit comprising a plurality of compartments that surround and are connected to a central assembly chamber associated with a feeding chamber. Each of the compartments is adapted to house a swarm of bees and one queen bee. Accordingly, bees in an individual compartment are only indirectly accessible to bees in another compartment via the central chamber and can move from one compartment to another only after congregating in the assembly chamber in order to gain access to the feeding chamber associated with the assembly chamber. The bees in all of the compartments can be cared for and treated only in one of the compartments by removing combs with swarming bees from the one compartment and replacing them with empty combs.