Abstract: A hoist with a lifting device, by way of which a load suspension device connected with the lifting device via a traction mechanism can be raised and lowered, and with a control device which is arranged between the load suspension device and the traction mechanism and includes a housing with a handle for manipulating the load suspension device. Switching members are arranged in the housing for controlling the lifting device, and a high-strength connecting member is fastened in the housing, with the traction mechanism and the load suspension device being fastened to the connecting member. The housing is divided into a mechanical part with the handle for receiving an actuating mechanism for the switching members and into an electrical part for receiving the switching members with the connecting member being arranged between the mechanical part and the electrical part.

Abstract: A two-high cross rolling mill with driven rolls situated one above the other and a pair of rotatably driven guide disks which are supported in rockers which are swivelable around vertical axles and can be adjusted transversely to the swivel axis of the rockers. To optimize the adjusting time and adjusting accuracy, each of the two bearing members of each guide disk is arranged in a vertically adjustable chock so as to be swivelable around a horizontal axis extending transversely to the rolling direction. Each chock is fastened in turn in a clampable manner in a bearing slide which is adjustable in the direction of these swivel axes in horizontal planes and arranged in each instance in fitted guides which are guided in the rockers so as to be displaceable parallel to the rolling direction independently from one another.

Abstract: A rail conveyor, including an I-shaped main rail, a trolley guided at the I-shaped rail and having lateral guide rollers, a running wheel rolling on the rail, a counter-wheel and an extra rail for the counter-wheel for increasing frictional engagement of the running wheel with the main rail, the extra rail extending parallel to the main rail, the extra rail being arranged laterally adjacent to the rail, the running wheel and the counter-wheel each having an axle that lies in a plane aligned perpendicular to the longitudinal extension of the main rail.

Abstract: The present invention relates to an apparatus for adjusting the upper edge of a lower work roll of a four high rolling stand to the rolling line. In particular, the apparatus has a horizontally displacable lower wedge element having a stepped sloped upper surface and a vertically displacable upper wedge element positioned underneath the chock of the lower back-up roll. This upper wedge element has a stepped sloped lower surface corresponding to and resting on the stepped sloped upper surface of said lower wedge element. A lift device is used for lifting the upper wedge element and the chock along the vertical axis so that the lower wedge element can be horizontally positioned. Thereafter, the upper wedge element and the chock are lowered onto the lower wedge element, thereby adjusting the upper edge of the lower roll in the roll stand to the roll line.

Abstract: A double furnace installation having two arc furnaces connected via a line, a power supply, a device for charging material, and an arrangement for extraction and purification of gas is operated by connecting a first one of the furnaces with the power supply for melting a charge located therein, isolating a second one of the furnaces from the power supply, charging the second furnace with charging material, and closing the second furnace with a cover. Flue gas generated during a melting phase of the first furnace is sucked therefrom and introduced into the second furnace through a first interior bay region of the second furnace. The flue gas entering the second furnace in this manner passes substantially horizontally through the charging material in the second furnace because it is sucked therefrom through a second interior bay region disposed diametrically opposite the first interior bay region.

Abstract: An apparatus for the emptying of containers is disposed in the course of a conveyor way for containers loaded with piece goods, in particular with luggage pieces. A branch conveyor for receiving discharged piece goods is following to the emptying apparatus. The emptying apparatus is furnished with support rollers and guide elements for the containers and a tipping device with a swivel drive for the swiveling of the containers perpendicular to the transport advance direction (F) of the conveyor way in direction toward the branch conveyor. In order to obtain an emptying of the container during the transport motion based on a constructively simple structure of the apparatus, the container (3) is essentially constructed to comprise a part (4), formed by a shell-shaped floor (8) for receiving the piece goods (5) and a lower part (6).

Abstract: The invention is directed to a u/s test device for nondestructive testing of a workpiece moving relative thereto by the pulse echo method, having a fluid coupling between the ultrasonic oscillator and the surface of the work material. At least two test heads are provided whose sound beam axes intersect at a point in the region of the workpiece and a travel path in the form of a chamber is provided for guiding the fluid medium. To reduce susceptibility to interference and to achieve high test performance, a separately guided travel path extending along a determined length of the chamber and forming a duct (12-20) is associated with each test head (1-9), the axes of the travel path being aligned with the respective sound beam axis.

Abstract: An electrode support arm for arc furnaces which is constructed as a hollow section with a wall formed at least partially from current-carrying material of high conductivity. The wall of the hollow section has a coolant guiding system including ducts arranged in the wall so as to be parallel to one another and concentric to the center axis of the support arm. The quantity and dimensions of these ducts enable sufficient cooling without a reduction in the strength of the support arm.

Abstract: Steering is actively assisted in a turning motor vehicle including a hybrid drive having both an internal combustion engine and a generator unit. The inner and outer wheels are each associated with an individual drive which is controlled in accordance with the steering angle of the steered wheels. Specifically, the torque differential is adjusted such that the percentage actual wheel differentials approach the percentage reference wheel speed differentials. A substantial reduction in the force which must be applied via the steering system to adjust the steering wheels, as compared to an absence of torque differential, is achieved because the outer wheel is driven at a higher output than the inner wheel when making a turn.

Abstract: A liquid-cooled plate mold with adjustable width for the continuous casting of billets from steel in the form of slabs, particularly for a slab thickness of less than 100 mm. The shape-imparting broad side plates (1) and narrow side plates (2) of the ingot mold are constructed in the direction of their transverse extension so as to increase in cross section for the billet, while the narrow side plates (2) extend substantially parallel to one another along the height of the ingot mold. Further, the broad side plates (1) are constructed so as to be concave at least in a region (3) of smallest slab width in such a way that, in cross section, the apex height (13) of the ingot mold wall forming a curve has a determined height relative to a rectangle inserted in the drawing. The shape of the billet side plates at the billet outlet end (5) corresponds to the billet format to be produced.

Abstract: A process for compressing a gaseous medium, particularly air, in which sucked in gas of a lower initial pressure, particularly atmospheric pressure, is compressed to a predetermined final pressure by means of a compressor driven by the useful side of a thermal engine. The sucked in gas is pre-compressed before entering the compressor and/or the compressed gas is re-compressed after exiting the compressor by a turbocharger. The drive side of the turbocharger is acted upon by the energy of the exhaust gas flow of the thermal engine. In order to increase the overall efficiency of transportable compressor installations in particular, a liquid of a closed or open liquid/steam circulation system, which liquid is under pressure, is evaporated and superheated by the exhaust gas flow of the thermal engine and the superheated steam is fed to the drive side of the turbocharger.

Abstract: The invention is directed to a traveling trolley, in particular a single-rail trolley having a compact height. A traveling trolley constructed in accordance with the present invention includes a supporting frame with running wheels that run on the bottom flange of a rail, a hoist arranged at the supporting frame, a lever member arranged at the axle of the driven running wheel so as to swivel or pivot, and a friction wheel supported at the free end of the lever member via an additional axle. The friction wheel and the driven running wheel are each coupled to a respective toothed wheel and these toothed wheels are driven by a driving unit. A spring element arranged between the lever member and the supporting frame urges the friction wheel into contact with the bottom flange of the rail.

Abstract: Disclosed is a process for producing seamless steel pipes or flat products (strip or sheet) for pipes or vessels which are intended for the conveyance, transport or processing of gaseous or liquid hydrocarbons containing CO.sub.2 and water and possibly small proportions of H.sub.2 S and are resistant to stress crack corrosion and have good welding properties at the same time and a 0.2-percent elongation limit of at least 450 N/mm.sup.2. The process uses a nickel-containing steel of the following composition (percent by weight): min. 0.015% C, 0.15-0.50% Si, max. 2.00% Mn, max. 0.020% P, max. 0.003% S, 12.0-13.8% Cr, 0.002-0.02% N, 0.01-0.05% Nb, remainder iron and usual impurities. It is presently suggested that the nickel content is limited to a maximum of 0.25%, the manganese content amounts to at least 1.0%, the carbon content is limited to 0.035%, and 0.01 to 1.2% molybdenum is contained as additional alloying component.

Abstract: The drive arrangement for a motor vehicle includes an internal combustion engine (1) with at least one controlling element (29), an electric generator arrangement (3) driven by the internal combustion engine (1), at least one electric motor (11) which is powered by the generator arrangement (3) and drives the motor vehicle, and an electronic control unit (19) which, depending on the setting of an accelerator pedal (23), controls at least an actuating drive (27) and the electrical output generated by the generator arrangement (3) and/or the electrical output received by the electric motor (11). The arrangement contains a device for detecting an actual value of the speed of the internal combustion engine (1) and component for detecting an actual value of the electrical output generated by the generator arrangement (3).

Abstract: Disclosed is a process for operating a pressure-operated positioning tool or gripping and clamping tool and a tool itself, in which the position of at least one adjusting member is determined and the valve-actuated supply of pressure medium to the adjusting member is regulated depending on position. To take into account the elasticity of the contact elements in the target position and to exert influence after the target position has been reached in a process and in a tool of the generic type, the regulating of the valve-actuated supply of pressure medium is not only effected in a position-dependent manner, but also takes into account the pressure of the pressure medium.

Abstract: The invention concerns a powdery, hydrophobic filler for bituminized traffic surfaces, including at least one substance that lowers the freezing point of water.

Abstract: An impact support for reinforcing a door of a motor vehicle, including a hollow profile part that is fastenable in the vehicle door. The hollow profile part having, at least in a central region thereof, a portion with a roughly oval cross section having a cross-sectional height that is greater than a cross-sectional depth. The hollow profile part is arranged in the motor vehicle door so that the depth lies parallel to an impact direction. The roughly oval cross section is formed by two straight sides which lie parallel at a distance from one another and are connected at their ends by a convex portion that has a radius that is always greater than half the distance between the two straight sides.

Abstract: A catalytic reactor in which liquid media can be continuously introduced, evaporated and fed to catalytic reactions, wherein the reactor space is formed by a tubular reactor casing which is open at one end and can be closed by a reactor lid having a through-opening. A pipe acting as evaporator stage is arranged so as to extend from the region of the through-opening until deep in the reactor space and is provided with a baffle and a baffle holder at the end extending into the reactor space. The rest of the reactor space is filled at least partially with catalyst and forms a catalysis stage. The pipe, baffle and baffle holder are made of ceramic material and the pipe and baffle holder are constructed as a single piece.

Abstract: A transporting system including, guide rails which laterally define a travel path that has branches, a floor conveyor vehicle which is guided by the guide rails and has two longitudinal sides, a pair of guide rollers which are arranged at each of the longitudinal sides of the vehicle so as to engage with the guide rails at least on one side, the pair of guide rollers including inner and outer guide rollers. A switching mechanism is provided for changing the travel path within a branch. The switching mechanism being arranged at the vehicle and including a swivel drive for the outer guide rollers of the pair of guide rollers. The outer guide rollers are supported on the vehicle so as to be swivelable between a guidance position, in which the inner and outer guide rollers engage with the guide rail, and an open position in which the outer guide rollers release the guide rail.

Abstract: A roll tool for cold pilger rolling of pipes in which the reducing zones of the two tool grooves, starting from the transition from the reducing zone to the smoothing zone, have transitional areas without kinks which extend parabolically. The curve describing the mandrel groove runs parallel to the parabolic transitional area of the roll groove proceeding from the location of the narrowest gap between the roll and mandrel while forming a wall smoothing zone.