Abstract: The invention relates to a flow-control valve (1) for a hydraulic shock absorber. Components of the basic structure of the flow-control valve (1) are an axially movable slide (5) having a body (6) and a valve sleeve (7), an electromagnetic linear actuator (8) for axial displacement of the slide (5) and a fixed guide body (9) configured as a tube and having an end pin (10). The valve sleeve (7) is guided on the end pin (10) of the guide body (9) and cooperates with at least one valve opening (11) formed in the wall of the guide body (9) such that the flow cross section of the valve opening (11) can be altered by axial movement of the valve body (7). According to the invention the slide (5) is provided in a pole tube (12) fixed on the guide body (9). The body (6) of the slide (5) is guided with a clearance fit in a bearing ring (13) attached to a section of the pole tube (12) surrounding the body (6).

Abstract: A workpiece table arrangement for a milling and drilling machine comprising a rigid machine tool frame comprising an upper cross girth, a machining unit movable on the front side of the cross girth along at least two coordinate axes by means of a motor and including a rotationally driven work spindle including exchangeable tools. The workpiece table is disposed in front of the machine tool frame and horizontally movable along at least one coordinate axis by means of a motor and comprises a tabletop for clamping at least one workpiece. The machine tool frame comprises two rigid side walls rigidly connected to each other by the upper crossbar and a front end.

Abstract: A milling and drilling machine comprising a rigid machine tool frame comprising an upper cross girth, a machining unit movable on the front side of the cross girth along at least two coordinate axes by means of a motor and including a rotationally driven work spindle including exchangeable tools, and a workpiece table which is disposed in front of the machine tool frame and horizontally movable along at least one coordinate axis by means of a motor and comprises a tabletop for clamping at least one workpiece. The machine tool frame comprises two rigid side walls rigidly connected to each other by the upper crossbar and a front end.

Abstract: The invention concerns a coating and a process for the coating of exterior surfaces. More particularly, the invention concerns a process for the coating of exterior surfaces of pipelines with polymer cross-linkable under exposure to water.

Abstract: A hydraulic vibration damper has a receiving pipe, a piston rod which projects into the receiving pipe at one end and which can be moved in an oscillating way in the receiving pipe, on the end, facing the receiving pipe, of which a working piston is disposed. The working piston comprises through-flow channels for the damping fluid which channels are effective in the pulling direction and pushing direction, and which working piston divides the inner chamber of the receiving pipe into a pulling chamber on the side of the piston rod and a pressure chamber remote from the piston rod, wherein at least a first through-flow channel can be covered to form a damping valve with a first resilient or spring-loaded valve washer which cooperates with a first valve seat.

Abstract: The invention relates to a pathogen-inducible synthetic promoter which is suitable for regulating the transcription of a nucleic acid, and includes a minimal promoter, characterized in that the minimal promoter includes a sequence motif a) dbrmwa or b) twcccmt which is disposed downstream from a TATA region and in front of a transcription starting point which is located on the minimal promoter and at which transcription of the nucleic acid to be regulated starts.

Abstract: A machine tool, and in particular a milling and drilling machine, which includes a rigid base on which an inclined support surface pointing forward and upward is formed. The support surface forms a support for a workpiece support rotatable about the central axis and comprises a support supported on the support surface and rotatable about its central axis. A workpiece table is provided on a bent support portion of the support. The axis of the workpiece table forms an acute angle with the central axis of the support surface. The support surface is laterally offset with respect to the vertical central plane of the base so that its central axis forms an acute angle with the vertical central plane of the base, and the workpiece table assumes a forward tilted posture in intermediate positions within a rotational angle range.

Abstract: A milling and drilling machine comprising a rigid machine tool frame comprising an upper cross girth, a machining unit movable on the front side of the cross girth along at least two coordinate axes by means of a motor and including a rotationally driven work spindle including exchangeable tools, and a workpiece table which is disposed in front of the machine tool frame and horizontally movable along at least one coordinate axis by means of a motor and comprises a tabletop for clamping at least one workpiece. The machine tool frame comprises two rigid side walls rigidly connected to each other by the upper crossbar and a front end.

Abstract: A hydraulic vibration damper has a receiving pipe, a piston rod which projects into the receiving pipe at one end and which can be moved in an oscillating way in the receiving pipe, on the end, facing the receiving pipe, of which a working piston is disposed. The working piston comprises through-flow channels for the damping fluid which channels are effective in the pulling direction and pushing direction, and which working piston divides the inner chamber of the receiving pipe into a pulling chamber on the side of the piston rod and a pressure chamber remote from the piston rod, wherein at least a first through-flow channel can be covered to form a damping valve with a first resilient or spring-loaded valve washer which cooperates with a first valve seat.

Abstract: The invention relates to a method for producing multi-layered containers from a thermoplastic material (10), said containers being used to store and transport liquid fillers, especially combustible or explosive fillers, and a plastic container produced using said method. The inventive containers are provided with a thin, permanently electrostatically non-chargeable or electric charge-draining outer layer. According to the invention, the permanently electrostatically non-chargeable or electric charge-draining properties of the outer layer are created by adding a defined quantity of a specific compound based on a polymer to the base plastic material of the outer layer and incorporating the same into the plastic material, and the outer layer is thin so that the transparency or translucency of the compounded outer layer is either not affected, or only slightly affected, such that the filling level of a liquid poured into the container remains optically identifiable without taking any other measures.

Abstract: An intubation hose, a supply regulator and a supply reservoir of a predetermined gas such as xenon, a gas mixing chamber connected to the supply regulator and the supply reservoir, and a selection element that separates the predetermined gas from other gases or separates other gases from the predetermined gas may be combined to form a respirator. The respirator delivers the predetermined gas supplied from the reservoir to a mixing chamber where the predetermined gas mixes with other gases that are then provided to a consumer such as a patient. Afterwards, the predetermined gas is at least partially recovered through the use of selection element. This recovery allows the recovered predetermined gas to be reused which substantially reduces the cost of operating the respirator.

Abstract: A machine tool, and in particular a milling and drilling machine, which includes a rigid base on which an inclined support surface pointing forward and upward is formed. The support surface forms a support for a workpiece support rotatable about the central axis and comprises a support supported on the support surface and rotatable about its central axis. A workpiece table is provided on a bent support portion of the support. The axis of the workpiece table forms an acute angle with the central axis of the support surface. The support surface is laterally offset with respect to the vertical central plane of the base so that its central axis forms an acute angle with the vertical central plane of the base, and the workpiece table assumes a forward tilted posture in intermediate positions within a rotational angle range.

Abstract: A pallet container for the storage and transport of liquid or free-flowing goods, includes a thin-walled inner container of thermoplastic material, a tubular lattice frame closely surrounding the inner plastic container in the form of a support jacket, and a bottom pallet upon which the inner plastic container rests and with which the tubular lattice frame is securely fixed. The inner plastic container includes for withdrawal of liquid goods at the lower side, approximately in mid-section in a side wall near its bottom a blown, calibrated tubular pipe for allowing attachment of a closeable discharge fitting which is fixedly welded with its tubular housing to the calibrated tubular pipe of the inner container.

Abstract: A process and device for texturing a thread within a false twist texturing device with a heat exchanger having thread passages formed by thread passage segments. The heat exchanger possesses a first section and a second section which form a chamber into which a fluid can flow to treat a thread during operation of the heat exchanger. The first and second sections of the heat exchanger can be manipulated to enlarge the thread passages to facilitate insertion of the thread. After the thread insertion, the heat exchanger is sealable in such a manner that the thread passages seal around the thread to prevent leakage of the fluid from the chamber while allowing the thread to be movable through the heat exchanger.

Abstract: A method for improving the exhaust gas emissions of an internal combustion engine having an exhaust gas catalyst, wherein the exhaust gas catalyst is heated after starting the internal combustion engine. Regulation of the power output is performed by the generator or generators during the warm-up phase of the exhaust gas catalyst. The power output of the generator or generators is regulated such that this power output is reduced during a period of time until the exhaust gas catalyst has reached a specific minimum temperature.

Abstract: Noise generated by a noise radiating surface is actively suppressed by at least two axially sensitive noise sensors which produce a control signal for controlling a noise suppression actuator. The sensors integrate the sensed signal in an axially selective manner. The at least two sensors are sensing the signal in two directions which preferably cross each other orthogonally. The control signal activates the actuator in such a way that the actuator counteracts deflections or vibrations of the noise generating surface such as a vehicle body wall.

Abstract: A rotation damper with a housing, a rotor which is rotatably mounted in the housing and which, with the housing, forms at least one gap into which a viscous medium is enclosed, and an axle or shaft which is connected to the rotor and which at least at one end projects out from the housing. There is further provided a filler opening, for the viscous medium, which is formed in the housing and which at least over part of its length comprises a uniform circular cross section and a closure element comprising a circular linear sealing edge, the diameter of which is somewhat larger than the inner diameter of the filler opening in the region of the uniform cross section.

Abstract: The invention provides a method for detecting the wheel rpm values of the nondriven and the driven wheels and for comparing them with one another in order to improve vehicle stability, for example when the driving torque of the engine is too high. A friction clutch located between the drive motor and the wheels in the drive train is disengaged when the rpm of the driven wheels is less than the rpm of the nondriven wheels and the difference between the two wheel rpm values exceeds a given limiting value. The friction clutch is re-engaged when the difference between the two wheel rpm values reaches or falls below a second limiting value.

Abstract: A hydraulic brake system for a vehicle with an anti-lock arrangement operable by wheel brake pressures are individually variable in front wheel brakes and rear wheel brakes, connected to diagonal brake circuits, of a four-wheeled vehicle, in order to reduce or eliminate a threat of wheel locking. The anti-lock arrangement has at least one return pump per brake circuit. The anti-lock arrangement is equipped with a total of four electrically controllable valves. In each of the brake circuits I, II there is one first valve between the master cylinder and a front wheel brake and one second valve between the master cylinder and the rear wheel brake. All the valves are embodied as normally open valves and are electrically closable. Inlets of each of the return pumps communicate directly with the respective front wheel brakes and indirectly with the rear wheel brakes through throttles. Check valves that open toward the inlets of the return pumps are provided in series with the throttles.