Abstract: A manipulating device includes a gripper (11) for gripping workpieces (19) by way of a negative pressure. A suction pump for generating and feeding the negative pressure as well as at least one valve (24) are disposed in a casing (14). The casing is connected with the suction gripper (11). The negative pressure can be applied to the suction gripper (11) by means of the valve (24).

Abstract: An occurring positioning error is electronically corrected during the positioning of edge-perforated continuous form paper (10) in a print position (PP) relative to a print station (13) of a printing device (1). Edge perforation holes (EH1 . . . EHv) on the continuous form paper (10) are scanned for the electronic correction and the positioning error is determined for a block (B1 . . . Bm . . . Bu) of the continuous form paper (10). The positioning error is composed in this case for each block (B1 . . . Bm . . . Bu) of at least one slippage value (Sv-1, Sv) as well as of a residual error (RE1 . . . REm . . . REu). While the slippage value (SVv-1, SVv) for a block (Bm) is corrected immediately, a residual error (REm) is taken into consideration during the correction of the position error for a next following block (Bm+1). In addition to the electronic correction of the positioning error, determined for the block (B1 . . . Bm . . . Bu), the positioning process is surveyed relative to interventions (I).

Abstract: A plant for secondary metallurgical processing of molten steel, having a melting apparatus and a continuous casting apparatus, a first station and a second station each having an associated evacuatable container for the molten steel, an oxygen feed device and an additive feed device. Each container receives a casting ladle, and has a vacuum-tight cover to provide a seal. A moderate vacuum device, e.g. a water ring pump and a high vacuum device, e.g. a water ring pump and a steam jet are provided, and are connected to the container via a device for selectively connecting the moderate vacuum device and the high vacuum device to the containers.

Abstract: The invention relates to a process for driving printing elements of a dot matrix printer in which the matrix dots to be printed are to be thinned out without any thin lines, in particular steeply inclined thin lines, being lost. To this end, before thinning out each matrix dot to be printed is associated with another matrix dot disposed on a nearest neighbor grid point in a certain direction of addition. After thinning out, the respective characters or images are printed sufficiently well and clearly. The process is intended for use in dot matrix printers.

Abstract: A conveyor system includes a support rail with travel surfaces for driven support wheels of vehicles, such as suspended or elevated trolleys or the like. An additional rail is provided for additional wheels which apply contact pressure to the support wheels. Such a conveyor system with a plurality of vehicles and a small number of ascending and descending paths is simplified by supporting the additional rail directly or indirectly through springs on the support rail.

Abstract: The taper of narrow faces of a plate-type mold is controlled for the production of steel castings in slab form, wherein the plates of the mold are cooled by a liquid coolant and wherein the narrow faces can be adjusted between wide faces of the mold. Initially, the temperature of the coolant is measured at a coolant outlet of each plate of the mold. A cooling surface-related specific temperature value is then formed from each measured temperature. The specific temperature values of opposite plates are compared. The specific temperature values of each plate are compared with the specific temperature values of the adjoining plates. When a difference between the specific temperature values occurs, an adjustment value having a magnitude of the difference in values is applied to a drive of the narrow face which provides the lower temperature value, such that the taper of the narrow face is increased.

Abstract: A plug-type connection for a tubular body comprising a tubular holding element (1) slit in crown-like manner to form tongues (2) to receive the tubular body (30), and an annular collet (20) to be inserted onto the holding element (1) to clamp the end region of the tubular body (30) to the holding element (1). The collet (20) is a single piece and U-shaped in longitudinal section and has an inner arm (21) which is slit in crown-like manner and an outer arm (22). A circumferential shoulder (8) is formed on the holding element (1) outside the central bore (3). A pin (26) on the end of the outer arm (22) of the collet (20) fits into a depression (9) in the shoulder (8) of the holding element (1). A spherically shaped projection (27) fits into spherically shaped recess (10) in the shoulder (8) of the holding element (1). The recess (10 ) is staggered by an angle of rotation with respect to the depression (9). The spherically shaped projection (27) is located on the end of the pin (26).

Abstract: A support for current conductor rails at an essentially double T-shaped beam girder is welded together of two mirror-symmetrical profiles. A support, carrying the current rails, surrounds the top flange of the beam girder (1) and rests with an angled clamping face (7) at an angled holder strap (4) of the top flange. The support (6) is held by U or V-shaped clamps (12) at the holder strap (4) of the top flange. This arrangement provides for a suitable attachment possibility for current conductor rails above the bottom flange of a double T-shaped beam girder.

Abstract: A modular distributing valve includes a valve body within which an actuating member is displaceably arranged along a longitudinal axis of the valve body. A pair of control housings lying opposite each other on the axis for actuating the actuating member are arranged in the valve body. The valve body is a tub-shaped base body which can be closed by a flat cover and is provided with ISO gas connection openings on the side opposite the cover. In order to achieve ease of assembly and eliminate the need for sealing elements around the actuating member and the switched fluid paths in the modular distributing valve, the control housings are detachably connected to the cover and are inserted with a mechanical interference fit forming a seal and fixed in place in the valve body, together with the actuating member, from the side of the valve body opposite the gas connections.

Abstract: A trolley for traveling along a beam supported from below and having two protruding flanges comprising a frame that partially surrounds the beam, a travel wheel mounted so that it contacts and rolls on an upper surface of the lower flange of the beam, a second wheel mounted within the frame for gliding the trolley along one of the upper surface of the lower flange or a lower surface of the upper flange and a guide roller mounted within the frame for guiding the trolley along the beam.

Abstract: Device for closing off large pipelines, particularly hot gas pipelines, having at least one pivoted flap, the flap shaft of which is mounted for turning by a drive on a frame. The flap shaft is rotated by a double-armed swing lever connected to the flap shaft. The swing lever has two arms upon which actuating elements pivotally act. The swing lever is connected to the flap shaft through at least one intermediate element so that the swing lever is movable in a plane extending perpendicular to the axis of the flap shaft.

Abstract: A metallurgical vessel (10) includes at least one metallic electrode (20) fastened thereto having a chamber within the vessel (10) for holding a melt (19) and having a bottom surface, a shell (14) abutting the bottom surface, and a flanged tube (31) arranged on the shell (14) with the flanged tube (31) having a flanged surface (32). The electrode (20) is disposed coaxially with respect to the flanged tube (31) and is formed by first and second bars (21, 22) connectable to one another. The first bar (21) has the top face positioned proximate to the bottom surface of the chamber and penetrates the vessel (10) for contact with the melt. The second bar (22) is positioned against the bottom face of the first bar (21) and extends out from the vessel (10), the first bar having a should region (23) positioned annularly thereabout adapted to contact and lean against the flanged surface (32) of the flanged tube (31).

Abstract: An adaptation of an inked ribbon cassette to printers of higher printing speed is achieved where a supply spool is used as inked ribbon storage. Furthermore, the problem of an environmentally proper disposal of used inked ribbon cassettes is solved. At least two rotary drivable spool axles (3, 4) are spaced apart from each other on a base plate (1), open toward the upper side and open on the bottom side, where the spool axles (3, 4) are rotary supported on the base plate (1). The inked ribbon reels (2, 5) can be individually attached onto the spool axles (3, 4). A first inked ribbon guide element (7) is coordinated to one spool axle (3, 4). The inked ribbon (6) is guided from a first inked ribbon reel (2) along the first inked ribbon guide element (7) and parallel to the print path (17) and back via a second inked ribbon guide element (8) onto the second inked ribbon reel (5).

Abstract: A spray-cooled furnace cover or roof from which the coolant is removed by gravity flow without the use of any pumps. The roof has lower coolant consumption than roofs requiring Venturi pumps to remove water.

Abstract: A cold pilger rolling mill includes a reciprocating roll stand and a crank drive connected to the roll stand through connecting rods. The crank drive includes three shafts arranged parallel to each other and spaced apart at equal distances. The middle shaft is a crank shaft connected through crank pins with the connecting rod. A main weight for balancing half of the inertia forces of the roll stand is arranged eccentrically relative to the axis of rotation on the crank of the crank pin offset by 180.degree. from the pivot point of the connecting rod. On the two other shafts are arranged two additional weights of equal size which balance the other half of the inertia forces of the roll stand.

Abstract: A belt-driven rotary drive having a belt closed upon itself which is connected, within a pressure fluid-tight housing over roller-shaped bodies with the formation of movable pressure chambers, to a rotatable shaft which is extended out of the housing and the movable pressure chambers can be acted on by pressure fluid. In order further to develop a belt-driven rotary drive of this type in such a manner that the sealing action and the friction caused thereby can always be adjusted in simple manner from the outside, it is proposed that the closed belt (1) be adapted to be pressed on itself over a part of its length, with the formation of two pressure chambers which are pressure fluid-tight from each other, by a static pressing member which acts in the direction towards one of the roller-shaped bodies and that the pressing member be functionally connected for the adjustment of the pressing force with an adjusting device which is adjustable from the outside.

Abstract: A calibration generator for furnishing signals to tachographs, taximeters and other instruments used in fleet management systems. Calibrated frequencies and amplitudes are provided by the generator of the invention. A PLL controlled synthesizer, driven by a crystal oscillator, supplies frequencies under control from the operator. An alternative continuously controlled oscillator is also available for tests.

Abstract: A piston-cylinder unit for pressure fluids includes a housing bounded by a head piece at each end thereof; a cylinder disposed within the housing; a piston reciprocatingly movable within the cylinder; a pulley having a circumferential outer surface is mounted for rotation about an axis within each of the head pieces; a pull belt is secured to the piston and looped around the outer surface of the pulleys; a power pick-up is attached to the pull belt; a braking device for the pull belt is disposed within the head piece and juxtaposed with at least one of the pulleys and has a shape which is complementary to at least a portion of the circumferential surface of the pulley; and a feed conduit connected to the head piece for feeding the pressure fluid to the braking device.

Abstract: Individual base plate modules can be furnished with individual signals, however, several base plate modules can also be furnished with the same signal at the same point in time in a control device with in series disposed base plate modules (1). Protective ground conductors (7a), neutral conductors (6a), and signal conductors (8a) are provided for the electrical connections of the solenoid valves (2). Of these conductors, the protective ground conductor (7a) and the neutral conductor (6a) are pulled through and laid through in the longitudinal direction (10) of the series of modules. The signal conductor (8a) connects the solenoid valve (2) to the respective output of a signal source. A plurality of signal conductors (8) are disposed from the first to the last base plate module (1) and directed parallel in an electrically non-conductive support plate (13a), and adjoining to the pulled through and laid through protective ground conductor (7a) and to the neutral conductor (6a).

Abstract: A reinforcement element, for the body of an automobile, consists of an elongated tensile elastic part comprising a cable, which is arranged in a hollow section attached to the body of the automobile. The cable extends through the hollow section and is attached by its ends independently of the hollow section to an attachment point on a part of the body. An impact against the body part causes the hollow section to contact and rest against the cable, such that the cable impedes further displacement of the hollow section with respect to the body. The cable may be a compound cable, each element having different routing, lengths, thicknesses, and/or construction. The mounting includes a tensioning element to prestress the cable, and may include a passive or active damping element.