Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).

Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).

Abstract: A method for controlling dissipation in a video amplifier for a display signal. The method comprises the steps of setting a first current for establishing a first gain bandwidth product in the video amplifier. Generating a control signal in accordance with a slew rate of the display signal. Modifying the first current responsive to the control signal such that the video amplifier gain bandwidth product is controlled in accordance with the slew rate of said display signal.

Abstract: A linear guide device has a guide rail extending in a guiding direction, a guide carriage guided on the guide rail by at least one roll body revolving mechanism in the guiding direction. The at least one roll body revolving mechanism includes a revolving passage and a plurality of roll bodies which revolve in the revolving passage. The revolving passage has a running passage which is limited by a roll body running path formed on the guide rail and by a load-receiving wall portion of the guide car a return passage, and two deviating passages which connect the running passage with the return passage and in which the roll bodies are substantially load free. The guide carriage has a base unit and at least one revolving component group, the revolving component group having at least one lower wall portion of a wall which limits the return passage and at least one lower wall portion of a wall which limits the deviating passages.

Abstract: With a guide rail system composed of a guide rail with undercuts and a clamp bar, the ratio kh=h1.5/b is between 0.2 and 0.5, where b is the width of the base surface, and h is the minimum distance between the holding surface and the base surface of the guide rail, and when the ratio is in this range, guidance inaccuracies are reduced.

Abstract: The invention relates to a sliding closing element, especially for an intermediate distributor or similar metallurgical containers. According to the invention, the mobile sliding plate of said closing element can be driven by means of a drive comprising a driving road and a push rod connected thereto. In order to ensure that the oscillatory movement of the sliding plate does not impair the connection during operation, a coupling arranged as a connecting body between the opposite ends of the push rod and the driving rod is provided with two coupling parts that engage in each other without play.

Abstract: A power supply with capacitive mains isolation, comprises a source of an input supply voltage developed between a first terminal and a second terminal. A first supply inductance is coupled to the first terminal, and a second supply inductance is coupled to a load circuit. A switch responsive to a periodic control signal applies the input supply voltage to the first supply inductance to generate a current in the first supply inductance at a first polarity, during a first portion of a period of the control signal when the switch is at a first switch state. A pair of capacitors operate to couple the first supply inductance to the second supply inductance during a second portion of the period of the control signal when the switch is at a second switch state. The pair of capacitors isolate the first and second terminals, respectively, from the second supply inductance at a range of frequencies that is lower than a frequency of the control signal.

Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).

Abstract: A clamping device (2?) is provided for a refractory plate (3) of a slide closure at the outlet of a container for metal melt. The plate (3) has two pairs of side faces (10, 11), disposed mirror-symmetrically with respect to its longitudinal center plane (L), at which a clamping element (22?, 23?, 43) disposed in a slider housing (1) engages with its clamping faces. The side faces (10, 11) disposed at one side of the longitudinal center plane (L) form an obtuse angle (?). Three of the clamping elements are developed as binding fittings (22?, 23?) pivotably supported in the slider housing (1) and the fourth clamping element has a binding jaw (43, 30) displaceable in the direction toward the corresponding side face (10 or 11). Therewith results a simple and optimal bracing of this plate (3) stress-loaded by the high-level heating generated during operation.

Abstract: A worm drive hose clip has a clamping strap with overlapping end sections, a clamping screw, and a housing. The radially outer end section has thread elements engaging the threaded screw shaft. The radially inner end section is connected to the housing bottom having a butt joint with interlocking undercuts. The bottom has a first transverse border with tongues arranged on opposite sides of the butt joint and projecting outwardly into an opening of the radially inner end section. A second straight transverse border of the bottom is supported on first grooves impressed radially inwardly in the clamping strap and opening toward the second transverse border. A second groove adjoins the opening and supports the bottom. The radially inner edges of the first and second circumferential grooves are aligned with an underside of the bottom and pass continuously into an inner side of the radially inner end section.

Abstract: A method for controlling dissipation in a video amplifier for a display signal. The method comprises the steps of setting a first current for establishing a first gain bandwidth product in the video amplifier. Generating a control signal in accordance with a slew rate of the display signal. Modifying the first current responsive to the control signal such that the video amplifier gain bandwidth product is controlled in accordance with the slew rate of said display signal.

Abstract: A linear guide device has a guide rail extending in a guiding direction, a guide carriage guided on the guide rail by means of at least one roll body revolving means in the guiding direction, the at least one roll body revolving means including a revolving passage and a plurality of roll bodies which revolve in the revolving passage, the revolving passage including a running passage which is limited by a roll body running path formed on the guide rail and by a load-receiving wall portion of the guide car a return passage, and two deviating passages which connect the running passage with the return passage and in which the roll bodies are substantially load free, the guide carriage having a base unit and at least one revolving component group, the revolving component group having at least one lower wall portion of a wall which limits the return passage and at least one lower wall portion of a wall which limits the deviating passages, the revolving component group also having a load-receiving wall portion of th

Abstract: A worm drive hose clip has a clamping strap with overlapping end sections, a clamping screw, and a housing. The radially outer end section has thread elements engaging the threaded screw shaft. The radially inner end section is connected to the housing bottom having a butt joint with interlocking undercuts. The bottom has a first transverse border with tongues arranged on opposite sides of the butt joint and projecting outwardly into an opening of the radially inner end section. A second straight transverse border of the bottom is supported on first grooves impressed radially inwardly in the clamping strap and opening toward the second transverse border. A second groove adjoins the opening and supports the bottom. The radially inner edges of the first and second circumferential grooves are aligned with an underside of the bottom and pass continuously into an inner side of the radially inner end section.

Abstract: A worm-driven hose clamp has a housing made of a band connected with interlocking cutout and projection to form an open butt joint. A clamping screw with a threaded shaft is arranged in the housing. The first and second ends of a clamping strip are overlappingly received in the housing. The first end has thread elements interacting with the threaded shaft. The second end is fastened to the housing bottom which has transverse edges extending transversely to the butt joint. The transverse edges have radially outwardly, circumferentially projecting tongues on opposite sides of the butt joint. The second end has openings on opposite sides of the butt joint for receiving the tongues. Depressions adjoin the openings. They project radially inwardly and extend longitudinally in a circumferential direction of the clamping strip away from the housing relative to the transverse edges. The tongues penetrate the openings and matchingly engage the depressions.

Abstract: A worm-driven hose clamp has a housing made of a band connected with interlocking cutout and projection to form an open butt joint. A clamping screw with a threaded shaft is arranged in the housing. The first and second ends of a clamping strip are overlappingly received in the housing. The first end has thread elements interacting with the threaded shaft. The second end is fastened to the housing bottom which has transverse edges extending transversely to the butt joint. The transverse edges have radially outwardly, circumferentially projecting tongues on opposite sides of the butt joint. The second end has openings on opposite sides of the butt joint for receiving the tongues. Depressions adjoin the openings. They project radially inwardly and extend longitudinally in a circumferential direction of the clamping strip away from the housing relative to the transverse edges. The tongues penetrate the openings and matchingly engage the depressions.

Abstract: A synchronous burst mode power supply includes a power converter for transforming an AC mains from a relatively low frequency to a higher frequency, and a gate circuit responsive to the AC mains supply for enabling the power converter (2) to initiate a burst of output pulses at the higher frequency each time the AC mains supply occurs within a predetermined range. In an alternative embodiment, the power supply has a regulating circuit for regulating output from the power converter that includes a current feedback loop to the gate circuit for pre-regulating control of the power converter in response to load variations.

Abstract: A switched mode power supply circuit for a video display apparatus having run and standby modes of operation A run mode power supply provides an output voltage for the video display apparatus during the run mode of operation. A standby mode power supply provides an output voltage for the video display apparatus during the standby mode of operation. A switched mode power supply controller circuit provides drive pulses to the run mode power supply during the run mode and to the standby mode power supply during the standby mode. A snubber circuit of the standby power supply is used to turn off a start-up transistor during the standby mode of operation to prevent power dissipation in a start-up resistor.

Abstract: A refractory plate for a sliding gate valve at the outlet of a vessel containing molten metal has a polygonal external shape and has a longitudinal axis, on both sides of which at least two side surfaces, disposed at an obtuse angel (.gamma.) to one another, extend and serve as clamping surfaces of the plate in a metallic frame (11) or the like. The shorter side surfaces are arranged to extend at an angle (.alpha.) of between 20.degree. and 50.degree. to the longitudinal axis while the longer side surfaces are arranged to extend at an angle (.beta.) of between 10.degree. and 30.degree. to the longitudinal axis. The refractory plate can thus be optimally clamped and an increased service life is thus consequently achieved.

Abstract: A power supply circuit for a video display apparatus having run and standby modes of operation. A resistor has a first terminal coupled to a power supply controller circuit for enabling operation of the power supply controller circuit. A standby mode power supply provides an output voltage for the video display apparatus during a standby mode of operation. The standby mode power supply utilizes a standby transformer having a secondary winding coupled to a second terminal of the resistor. The secondary winding provides a low voltage to the resistor to minimize the power dissipated by the resistor.

Abstract: A sliding gate valve for a vessel containing molten metal is provided which includes a housing and a lid pivotally mounted thereon. A sliding plate is sandwiched between two fixed plates and the three are received within the housing. Clamping elements are provided and are used in conjunction with the lid to secure the plates. A lock is provided to prevent movement of the lid in a direction parallel to movement of the sliding plate while allowing movement of the lid in a direction perpendicular to movement of the sliding plate. The lock is designed to assume a locked position whenever the sliding gate valve is mounted onto the vessel.