Abstract: A symmetrical component of a turbine unit, whose wall is exposed to a hot medium on one side and is subject to nonuniform thermal stress over the circumference, is cooled by a flow of cooling air being guided along the other side of the component. A ring (5) is provided with slots (7) or other openings for the passage of the cooling air. The ring (5) protrudes into the flow of the cooling air. The overall cross section of the slots (7) that are arranged in the sections of the ring (5) that are adjacent to the areas of the component that are subject to the higher stress is larger than the overall cross section of the slots (7) that are arranged in the sections of the ring (5) that are adjacent to the areas of the component that are subject to a lower stress.

Abstract: An optical gas-measuring system and process identifies especially infrared-active individual gases over a measuring path of about 100 m and to determine their concentration averaged over the measuring path swept. The laser source (11) emits a divergent ray beam, from which both the measuring beam and the reference beam are formed after a single-time reflection of the emitted ray beam. A first radiation reflector (14) is designed in the form of a first hollow mirror for the reflection of a first part of the ray beam emitted from the laser source (11) as a measuring beam into the open optical measuring path. A second radiation reflector (16) is designed in the form of a second hollow mirror for the reflection of a second part of the ray beam emitted from the laser source (11) as a reference beam into a reference gas cuvette (17) containing the reference gas sample for the gas to be measured.

Abstract: A packet based high-speed communications mesh is disclosed including a plurality of switches trunked network interfaces including links connecting the switches to form a trunk cluster. Edge devices are connected to the trunk cluster via trunked links. The trunked links provide a physical connection form each switch to each edge device. A configuration protocol is used for configuring the trunk cluster by eliminating links connected to a switch upon loss of connectivity to a switch. The protocol includes trunk configuration protocol packets transmitted by the edge devices. A trunk switch agent associated with each switch receives and transmits all trunking protocol packets for the associated switch and builds up an identifier list upon monitoring trunk configuration protocol packets. The agent monitors link status and accesses the list.

Abstract: A miniature motor includes: a plurality of magnets serving as stator poles and attached to an inner surface of a motor casing having a closed-bottomed cylindrical shape; a salient-pole rotor having a core mounted on a rotor shaft and windings placed on the core; and a commutator mounted on the rotor shaft. The core includes a center portion having a hole formed therein at the center for engagement with the rotor shaft, a plurality of leg portions extending integrally and radially from the center portion in equal number with the salient poles, and a plurality of wing portions, each extending integrally and symmetrically from an end of each of the leg portions. The core includes core laminations blanked from sheet steel and assembled together and is formed through deformation of the entire wing portions such that the radius of a circumcircle of the core coincides with a designed final radius of curvature of outer circumferential surfaces of the salient poles of the rotor.

Abstract: A tile made of stiff molded synthetic resin having edges which overlap when a plurality of tiles are assembled upon a roof and an upper continuous contoured ridge along the upper edge and a lower continuous contoured ridge along the lower edge. The upper and lower ridges being stepped shape to engage with horizontal continuity when a plurality of tiles are assembled upon a roof. A through hole is provided in the lower ridge which aligns with a slot in the upper ridge to allow a screw to pass therethrough fastening two contiguous rows of tiles to a supporting structure.

Abstract: A device for compensating the weight of a robot arm of a robot with a spring cylinder and having at least one helical spring is characterized in that there is at least one mechanism for the insertion and removal of at least one further, replaceable helical spring and preferably a pretension of at least the replaceable helical spring is adjustable. The device according to the invention makes it possible to modify the spring constant of the spring cylinder in order to individually adjust the compensating force desired for compensating the weight of the robot.

Abstract: A monitor is provided for a bobbin thread on double thread lockstitch sewing machines. This is preferably a sewing machine with a rotating hook with a bobbin housing accommodating the lower thread reserve. The monitor includes a revolution sensor which sends a pulse per revolution of the main shaft of the machine to a microcomputer. An infrared laser light transmitter sends a detection beam directed toward a bobbin. The beam is reflected by the bobbin or by the roll of a residual thread length to a receiver and is sent by the latter to the microcomputer in the form of signals for processing, evaluation and/or forwarding. The microcomputer is adapted to compare the different signal patterns with a detection threshold (DS) to generate signals for controlling the sewing machine. A controllable power source is connected to the microcomputer for the occasional, stepwise reduction of the output of the infrared laser light transmitter.

Abstract: A description is given of a sensor for measuring the UV fraction of a radiation, comprising a photochromic transducer consisting of a photochromic material (3) with characteristics of reversible photochromism, whose absorbance varies as a function of the UV fraction of the radiation (R) incident on the photochromic material. An optical path (7) is provided to guide a light signal through said photochromic material and collect a return light signal, whose value is proportional to the level of absorbance of the photochromic material.

Abstract: The invention relates to a transgenic non-human mammal whose cells express a constitutively active oncogenic mutant of the kinase-domain of the Raf-1 gene or a protein coded by a corresponding normal allele or derivative of the A, B or c-Raf-1 gene.

Abstract: A device for measuring the flow of a fluid located in a fluid channel heats the fluid channel without additional components. A metallic tube (2) with predetermined thermoelectric potential is provided as a fluid channel. An a.c. power source (7) is connected to a partial section (6) of the tube (2) in such a manner that the partial section (6) is heated as a resistor element to an increased working temperature compared with the temperature of the fluid. At least one thermocouple (12) is provided with junction points formed along the partial section (6) in such a manner that at least two wires (8, 9) with another thermoelectric potential are connected to the tube (2) in the area of the partial section (6). A measuring circuit (13, 14, 15) evaluates the thermocouple voltage of the thermocouple (12) and has a circuit (13) which eliminates the a.c. voltage component superimposed to the thermocouple voltage as a consequence of the a.c. heating.

Abstract: A holder 1 forming monolithically a holder portion for holding a small size sound device 2 and an elastic conductive connector 11 for electrically connecting said small size sound device 2, wherein an acoustically required communication sound hole 13 is provided on a point corresponding to the sound hole 22 on the back face of the small size sound device 2 and, moreover, a test electrode section 14 used for leak test is provided, separately from the elastic conductive connector 11, without obstructing the acoustically required sound hole 13 on the back face of the small size sound device 2, and allowing also to simplify the mounting process, reduce the production cost, reduce the mounting position space of the small size sound device 2, and facilitate the leak test of the small size sound device 2.

Abstract: A linear handling unit is provided with a first body (11), which carries opposite linear bearings (16) in the front and a fluid-type linear actuator (19). A second body carries, longitudinally, two lateral studs (29) for guiding and for coupling with the linear bearings for the movements of one body on the other. The linear actuator is connected to the second body. The studs (29) are arranged in two parallel, flexible-expandable flanges (26) integral with the second body carrying the studs. An adjusting bar (31) is arranged between the studs.

Abstract: The invention relates to an arrangement (1) of a conveyor section (2) for containers (A, B, C, D, E) which are conveyed on said conveyor section and which are to be filled with items (3) or with a bulk material through a filling funnel (5), at a filing station (4). The containers are arranged in a filling position. According to the invention, the conveyor section (2) is configured with at least one circulating synchronous belt drive or chain drive (6) with its own intermittent actuating drive (7) and spaced-out container engagement knobs (8) in the area directly before, at and/or after the filling station (4). Said engagement knobs (8) ensure that the containers (A, B, C, D, E) arriving on the conveyor section (2) with their tops open are individually handled at a faster ate as they are moved into the filling position and, after filling, as they are moved out of the filling position, and can optionally be returned to the conveyor section (2) at the output end.

Abstract: A process for evaluating the quality of a printing ink is provided, wherein a defined quantity of the printing ink is stirred; a force or torque to be applied during the stirring is measured, and a defined quantity of moistening agent is added to the ink at a defined point in time. A device for evaluating the quality of the printing ink is also provided with a container for the printing ink; a stirring device, with which an ink filled into the container can be stirred; a measuring device for measuring the force to be applied by the stirring device or the torque to be applied; a moistening agent supply and a control, which actuates the feed of moistening agent such that a predetermined quantity of moistening agent is introduced into the container at a defined point in time.

Abstract: To prevent surge of a turbocompressor (K), a anti-surge valve (27) provided at the compressor outlet is controlled by a controller (R). The input signal for the controller (R) is generated as a function of the instantaneous flow and the end pressure of the compressor (K) such that the controller responds more slowly to working point shifts in the direction of the surge limit line and more rapidly to working point shifts in the opposite direction. This is achieved by arranging an asymmetric time element or a gradient sensor in the circuit generating the input signal for the controller (R).

Abstract: A radial ball-and-socket joint is provided with a housing. A bearing shell (2) in the housing rotatably and tiltably accommodates a joint ball (4). The joint ball is part of a ball pivot (3). The ball pivot also has a shaft (5), which projects through a outlet opening (6) of the housing (1). The housing is closed with a cover (7) on the side opposite the outlet opening (6). The bearing shell (2), accommodated in the housing in a positioned manner, has an axially extending continuous slot (8). The cover (7), arranged between the cover and the bearing shell, has a geometry (9) impressed into a damping element (11) on its inner side facing the bearing shell. As a result of the construction the damping element (11) and the bearing shell are fixed in the housing (1).

Abstract: A thermotherapy apparatus has a reclining surface (3) and an X-ray drawer (6) that can be retracted from the apparatus together when needed. A carrier (12) is located at the X-ray drawer (6) and can be connected to the reclining surface (3) in a preferred position.

Abstract: A process, system and apparatus for changing the concentration in an anesthesia apparatus with a fresh gas metering unit (14) and a pressure sensor (17) in the breathing circuit, with a volume displacement device (1) in the inspiration branch and a PEEP/PMAX valve (7) in the expiration branch. The fresh gas metering unit (14), the pressure sensor (17), the volume displacement unit (1) and the PEEP/PMAX valve (7) are connected to an evaluating and control unit (15). To bring about a rapid change in the concentration of the anesthetic or fresh gas supplied in the breathing circuit without additional design effort on the anesthesia apparatus the volume displacement device (1) is rinsed, either under the control of the fresh gas supply or under the control of the speed at which the volume displacement device (1) is returned. The rinsing takes place simultaneously with the regular respiration operation of the anesthesia apparatus, which may take place in a volume-controlled or pressure-controlled manner.

Abstract: A motor vehicle tandem brake power booster with two booster units each including a vacuum chamber and a working chamber each arranged in a partition divided housing. The pressure difference between the pressure in the vacuum chamber and the pressure that can be influenced by a switching device in the corresponding working chamber in each booster unit acts on a piston separating the vacuum chamber from the working chamber. The forces, which are proportional to the pressure difference and act on the pistons are bundled via mechanical intermediate members by at least one transmission element each with the forces applied by the driver of the vehicle to a corresponding brake pedal.

Abstract: An actuating pedal (1) for the brake system of a road vehicle has a fastening device (6) for fixing the actuating pedal (1) in a pivot bearing (12) on a pedal block (7) of the vehicle. The pedal block is a rigid part of the body, with a pedal body (2) and with an actuating surface (3). The pedal body (2) has at least one inner metal core (8) and a plastic jacketing (9) surrounding the metal core (8).