Abstract: A device for the purification of an exhaust gas containing at least one contaminant removable through heterogeneous catalysis and flowing through a chamber having an inlet and an outlet, comprises at least one disk structure positionable within the chamber and defining a central cavity alignable with the inlet of the chamber. The disk structure includes a non-metallic, gas-permeable and flexible carrier element comprising a band woven of glass fiber yarn. The yarn is formed of individual fibers coated with a layer of pulverized zeolitic material defining a molecular sieve and having a catalytic material, selected to act adsorptively upon the at least one contaminant, dispersed therein.

Abstract: A process and low-shaft furnace for disposing of filter material. The material to be disposed of is charged via a charging device onto and/or into a slag bath in the furnace. Simultaneously, additives comprising fluxing agents, slag-making constituents and reducing agents are introduced into the slag via a separate immersion lance. Finally, during the introduction of the additives the variables forming the electrical resistance, essentially the electrodiameter, center distance between the electrodes, level of the slag bath, and the immersion depth of the electrodes in the bath are adjusted so that 70% of the electrical energy is introduced between the electrodes and 30% of the electrical energy is introduced between the electrodes and the metal bath on the hearth bottom.

Abstract: The apparatus includes a pouring ladle with a sealable bottom opening and a distributing channel arranged beneath the ladle for the purpose of storing molten metal. The distributing channel is provided with at least two bottom openings that are openable and closable in a controlled manner. A separate tub-shaped basin is arranged beneath each bottom opening of the distributing channel and at least one mold is detachably connected to a bottom portion of each of the tub-shaped basins.

Abstract: The present invention relates to a drive of the fluid or electric type having a device for controlling an element for transmitting a driving force to a reciprocating or otherwise moveable or displaceable element and an arrangement for damping the driving force at at least one end of the element's travel. The driving force element is at least single-acting, and the drive may also include mechanical shock absorbers and sensors arranged in the area of the ends of travel. In order to achieve an especially soft striking or contact at the end of travel position of the driving force element, the control device includes a counter-pulse module which, via a pre-positioning sensor associated with at least one movement direction, causes a chronologically settable changeover from a previously flowed-through or activated first switching element associated with a first end of travel position to a previously unactivated second switching element associated with a second end of travel position.

Abstract: A control system for a materials-handling device, especially for a shelf storage and retrieval device. The device includes a horizontal travelling mechanism having a horizontal drive; a lift truck which can be raised and lowered on a mast via a lifting drive; and a storage/retrieval drive for storage and/or retrieval of the goods to be handled. The present system provides a simplified assembly and a design with respect to the supply of current. The simplified assembly and design is accompanied by supplying the electrical power for the storage/retrieval drive and for data transmission with a signal converter through the use of contact conductors arranged on the mast and the power is picked up from the contact conductors by sliding contacts on the lift truck.

Abstract: A supporting and guiding arrangement, in particular a post for shelf storage and retrieval devices, having a box-like section bar with a hollow box cross section. Grooves for guide rails are formed at least in two opposite corners of the hollow box cross section, and the ends of the guide rails are fixed in a holder.

Abstract: A drive unit with a motor (1), in the drive shaft (5) of which a plug-in pinion (6) with a conical shaft (6a) which can be mounted into a similarly shaped conical seating bore (5a). The plug-in pinion (6) has on its end face a collar bolt (8) proximate to its toothing (7). The drive shaft (5) has an external groove (5b) proximate to the seating bore (5a). A tool is used to mount and dismount the plug-in pinion (6) by grasping the collar bolt (8) and the external groove (5b) and causing them to move relative to one another.

Abstract: A process and device for melting scrap in a direct current-driven closed shaft furnace. The scrap is fed with an annular cross-section into one end of the furnace and hot gases which flow against the falling scrap are sucked below the scrap feeding area via an outer cylindrical wall of the scrap column. The inner free surface of the ring-shaped flat cross-section of the scrap is reduced before the scrap reaches the melting zone. In the melting zone, the scrap is exposed to an electric arc at the center of the flat cross-section. The arc furnace has a cathode that is held by an electrode bearing device which is formed as a concentric pipe with respect to the central axis of the furnace vessel. At one end the pipe is conically tapered and at the other end it is supported on the shaft of the furnace by bearing arms.

Abstract: A roll mandrel monitoring device in cold pilger mills with a coil which surrounds the rolled tube concentrically and is arranged on the delivery side after the rolling mill for detecting longitudinal movement of a coil core which is fastened inside the tube to a bar extending between the mandrel and coil coaxially to the tube. In order to achieve faster reaction times and accordingly to stop the rolling mill when the mandrel breaks, the bar is connected with the mandrel rod holding the mandrel so as to penetrate the mandrel concentrically and is constructed in the region of the mandrel as a tension bar which can be pretensioned against the end of the mandrel on the delivery side with the intermediary of an energy accumulator.

Abstract: A multi-stand roll train for longitudinally rolling seamless steel tubes in a continuous rolling process around an internal die using integrated two-high stands staggered by 90.degree. with correspondingly grooved rollers. The rollers are radially adjustable relative to one another, and at least the rollers of the final roll stand in the direction of rolling are divided along a central plane which vertically intersects the axis of the roller to form two halves. The two halves of the divided roller are axially adjustable relative to one another.

Abstract: A process for producing a thin-film measurement resistor in which an electrically insulating work material with a low specific heat capacity serves as substrate material, a metal film, preferably platinum, being applied thereto. The lateral electrical resistor is then structured and trimmed by erosive after-treatment, and the metal film is passivated in a final process step. The resistor element reacts more quickly to changes in temperature, the cover layer is extremely resistant to corrosion, and the entire construction is simple to produce in that glass is used as a substrate material and is provided, before applying the metal film, with a bonding agent layer of Al.sub.2 O.sub.3 which is substantially thinner than the metal film. The metal film is then applied by evaporation and structured by sputter etching. Finally, the metal film is provided with a protective coat of SiO.sub.x.

Abstract: A cold pilger rolling mill which has a roll stand that can be moved back and forth, a pair of cranks each having a crankpin, a pair of thrust rods that connect the roll stand to the crankpins, and centrifugal counterweights connected to the cranks so as to be eccentric to the rotational axis of the crank to at least partially balance inertial mass. The centrifugal weights are staggered by 180 degrees to the connection point of the respective thrust rod and crank and each crank and its associated counterweights forms a submechanism. The submechanisms are arranged in a mirror image around a vertical plane which intersects a roll axis. A common drive is provided for driving the roll stand. The drive includes a drive shaft that connects the submechanisms to one another and is located beneath a rolling plane. The submechanisms have rotational axes that run horizontally parallel to one another, and the drive turns the cranks in opposite directions.

Abstract: The machine has a cooled and moving substrate, for example an endless horizontal belt, a feeding device, for example a tundish, and a distributor arranged transversely to the substrate for distributing liquid metal over the substrate. The distributor can have an outlet for permitting a stream of liquid metal to exit the distributor, into a gaseous medium which can be enclosed by a hood or cover, at a substantial angle from the horizontal and vertical axes of the distributor, and the pressure of the liquid metal at the outlet can also be varied.

Abstract: A device for transferring load carriers between conveyor paths arranged at an angle relative to one another. The device has at least one guide element which is movable by a drive in the transporting path of the load carriers on a first conveyor path and in the direction of a second conveyor path for transferring the load carriers into the second conveyor path. In order to enable a reliable transfer of the load carriers and a high transfer capacity at the same time, the guide element is constructed as a driver which can move into a recess in the load carrier in a positive-locking manner for the transfer process.

Abstract: A passenger automobile or truck contains a unit which is formed by an internal combustion engine and a generator and which powers electric motors coupled with driving wheels of the vehicle via an energy distributor in the form of power electronics. An accumulator which can likewise be coupled with the electric motors via the energy distributor is provided as an additional power source. An electronic control unit receives driving signals from an accelerator pedal, in particular a position signal and a speed signal. The position signal of the throttle is interpreted as a request for a determined permanent output to be supplied by the internal combustion engine.The internal combustion engine is revved up to a new operating point in an "optimal" manner (e.g. with favorable fuel consumption), for example when a higher output is requested, while the generator is entirely or partially uncoupled from the load. Energy for accelerating the vehicle is provided in the meantime by the accumulator.

Abstract: A direct current electric arc furnace for melting metal, which furnace includes a furnace vessel having a lower vessel part lined with a refractory material and a metal upper vessel part through which a cooling agent can flow. A cover is adapted and arranged to close the furnace vessel. Electric current is fed to the furnace, by an arrangement including a main electrode extending into the furnace vessel through the cover, a bottom electrode located at the bottom of the lower vessel part, and feed lines that connect the electrodes to a direct current source. The feed lines include at least two current feeds connected to the bottom electrode, each current feed having a line segment parallel to a main axis of the main electrode and a shield for at least partially magnetically shielding the upper vessel part at an arc level from magnetic fields generated by the line segments parallel to the main axis.

Abstract: A process and installation for preheating scrap containing organic matter, in which flue gas is afterburned in an afterburner combustion chamber at a temperature at more than 1200.degree. C. The after-burned hot flue gases are guided, without being cleaned, via a heat exchanger. Fresh intake air is heated in the heat exchanger by sensible heat of the after-burned hot flue gases. A first portion of the heated intake air at a temperature above an ignition temperature of organic matter is guided in adjustable amounts through at least one basket filled with scrap. Another portion of the heated air exiting the heat exchanger is made available in adjustable quantities to the afterburner as hot blast and/or mixed in the another portion of heated intake air with the after-burned hot flue gases.

Abstract: A drive system includes two reversible hydraulic motors connected in parallel to a variable displacement pump and controlled by respective 4-port, 2-position valves. The motors, at least one of which is a variable flow, variable speed motor, are coupled to a single output shaft via an intermediate gear section. The hydraulic motors are positioned on one side of the intermediate gear section and their respective drive shafts are arranged parallel relative to one another. A clutch, which is concentrically disposed within an axial bore of a gear member, is operable to couple the drive shaft of a first of the motors to the output shaft. A second gear member, which is driven by the output shaft of a second of the motors, is adapted to mesh with the first gear member. If both motors are of variable speed construction, it is possible to operate the drive in three speed ranges, i.e.

Abstract: A crane, particularly a railway crane, with a superstructure which is arranged on an undercarriage so as to be swivelable around a vertical axis, a jib and at least one counterweight which is movable as a function of the swiveling movement of the superstructure. The counterweight being arranged on the superstructure. The at least one counterweight is connected with the superstructure via an articulation which has a swivel axis aligned parallel to the vertical axis of the superstructure.

Abstract: A motor vehicle including a unit (2) consisting of an internal combustion engine, a generator supplying current to electric motors (12, 16) coupled with driving wheels (14, 18) over an energy distributor/power electronics system (8) and a battery which is supplied with energy by the internal combustion engine/generator unit via the energy distributor (2). An electronic control system (20) controls the energy distributor (8) as a function of a driving signal according to boundary conditions, for example, according to the least possible specific fuel consumption. A temporary increase in the power required to drive the motors can be supplied by the battery (22). In the event that the increase in power lasts for longer periods, the internal combustion engine, which as far as possible operates in a state that ensures low fuel consumption, is accelerated in order to cover the demand for high power.