Abstract: A matrix printer includes a plurality of components, an outer casing and a frame. A flexible ribbon is provided which connects a component with either the frame or casing in order to conduct heat awau from the component; the ribbon is compressed at its point of connection to establish a good heat conductive connection.

Abstract: A two-dimensional mounting structure for an industrial robot or robot manipulator on a carriage with a lifting post and a manipulator connected to the post, the mounting structure includes longitudinal rail carriers, transverse connectors and a movable rail, carriages are connected to the movable rail which runs on the longitudinal carriers, the carriage for the robot runs on the movable rail; the improvement includes essentially similarly constructed end elements, first ones of the end elements connecting the ends of the longitudinal carriers to ends of the transverse connectors, others of the end elements connecting respective two ends of the movable rail to carriage means by means of which the transverse rail carrier runs on the longitudinal carrier; each end element comprises a basic configuration that includes two flat plates and a shaft in the bores with aligned bores, a connecting plate interconnecting the two plates from which they extend in downward direction, for connection to a transverse connector

Abstract: In an ink jet printer, the ink is warmed by a heating device comprising a temperature sensor element and a voltage regulator component as a heating element, this being arranged on the write head carrier; the heating element is supplied with a constant load current via a regulating circuit until an adjustable operating temperature is reached; the heating energy for warming the ink is offered via the dissipated heat of the heating element.

Abstract: An electrodynamic permanent magnet transducer for the non-destructive testing of workpieces by means of ultrasound. A soft magnetic housing is preferably provided in magnetically conducting contact with a pole surface of the permanent magnet to provide a compact magnetic return path for the magnetic field created by the permanent magnet. A hollow cylindrical body of nonmagnetic material is disposed to contactingly surround the permanent magnet to substantially eliminate magnetic short circuits parallel to the pole axis of the permanent magnet. The provision of two spiral transducer coils allows for the transmission and reception of ultrasound in a single permanent magnet transducer.

Abstract: Inking ribbon for thermographic printers that contains constituents that can be decomposed thermally or by radiation, particularly constituents that decompose upon release of a gas. Given correspondingly manufactured inking ribbons, the color-transferring regions (decomposition regions) can be more sharply defined, the required heating capacity for printing can be reduced and a better color adhesion on paper is achieved.

Abstract: A turbocompressor shaft seal, especially for a high-pressure turbocompressor, has each of its gas-side and atmosphere-side slide rings biased toward a rotor ring of the shaft and associated with blocking-liquid compartments which are interconnected by an annular passage aroung the rotor ring. The compartments are connected in a closed circulation path with a circulating pump and a cooler and leakage liquid is returned by a feed pump to the liquid circulation with the aid of a pressure transformer biased on one side by the gas pressure to be sealed and an adjustable spring force and, on the other side, by the pressure of the blocking liquid. The surface area ratio K between the area of the atmosphere-side slide ring biased by the blocking liquid pressure toward the rotor ring and the sealing area of the atmosphere-side slide ring is substantially 0.45 to 0.60, the thermal conductivity of the slide rings and rotor rings is greater than 250,000 N/mm.sup.

Abstract: In a process for reducing the outer diameter and wall thickness of an essentially cylindrical hollow tube blank by rolling, the front end of the tube blank is introduced into a rolling mill. To prevent piping defects during rolling and to obviate other disadvantages of conventional processes, the diameter and/or the wall thickness of the trailing end portion of the tube blank is reduced before the trailing end portion is introduced into the reduction zone of the rolling mill.

Abstract: A method of making tubing includes cold pilgrim step rolling wherein particularly a frame moves back and fourth carrying tapering rolls which roll in alternating directions upon the stock to be rolled whereby in addition a cylindrical mandrel is provided as well as turning and advancing facilities for the tube or pipe to be made and with further utilization of a rotatably driven clamping and holding device downstream for extracting the tubes or pipes being made.

Abstract: A tool is provided of forming a sleeve to the joint of enhanced resistance to pressure loading and which can be employed with relatively large diameter pipes, in which the sleeve and tube are crimped to each other by diametrically opposite crimps extending concavely inwardly of the outer surface of the sleeve and convexly inwardly of the inner surface of the tube, the respective crimps being isolated from each other by struts extending parallel to the longitudinal axis of the sleeve and tube, provision being made for equalization of the stresses produced in a seal ring contained in an annular flange of the sleeve during compressive reduction of the annular flange, provision also being made for the axial movement of the sleeve relative to the tube during compressive reduction of the flange.

Abstract: Process and apparatus for the detection of discontinuities in long workpieces such as pipes, tubes, rods and bars using vibrational transducer equipment transmitter pulses in separate directions about the workpiece.

Abstract: A device for precisely aligning, mating and clamping two injection mold plates, in which device, a first mold plate is rigidly attached to a support table and a second mold plate is slidably guided on parallel guide bars into contact with the first mold plate by at least two symmetrically placed, parallel ball spindles which are driven synchronously by a hydraulic motor.

Abstract: The drive includes a cable attached to opposite sides of the print head carrying carriage, looping on one side in several loops around a drive drum, and on the other side around a deflection pulley. The deflection pulley is mounted on a spring-biased pivot lever to tension the cable in an adjustable manner. The drum is connected to the drive motor in a compact fashion by means of a belt drive.

Abstract: A reinforcement tube having high strength, toughness and resilience for use as an absorption element in a motor vehicle door, the reinforcement tube having a cross-section in which a first dimension of the cross-section is greater than a second dimension of the cross-section, the second dimension being perpendicular to the first dimension.

Abstract: A drive for a pilger cold rolling mill which includes a crankshaft and a connecting rod. The connecting rod provides a balancing or equilibrium of moments while the crankshaft provides a balancing or equilibrium of mass.

Abstract: A reforming process for the production of hydrogen or synthesis gas is improved by a preparatory process including the preheating of gaseous hydrocarbons within a heat exchange zone into which water is sprayed to obtain concurrently evaporation of water and preheating of the water vapor as well as mixing of the hydrocarbon gases being preheated with the steam as produced, and preheating of the entire blend will continue prior to charging the reformed process.

Abstract: An apparatus to regulate the speed of pulse width modulated electric motors 1 has a coder 3 on the shaft 2, the signals from which are used as feedback signals in the regulation circuit, and are transmitted to a regulator 4 with a microprocessor 5, from the output control lines 6, 7 to an amplifier 8, and the amplifier 8 feeds the electric motor 1.To reduce the quantity of hardware components of the regulator 4, and in particular to save time in the CPU even at relatively low setpoint speeds, and to achieve a more rapid and more precise regulation overall, the invention proposes that the regulator 4 comprises a microprocessor 5 connected to the coder 3, wherein the microprocessor 5 is connected by means of a data and address bus 9 to a peripheral control component 10, and that the microprocessor 5 can be loaded by means of the data and address bus 9 with programs 11 for regulating the "off" time of the pulse curve.

Abstract: The apparatus includes a spray chamber having a transport device for positioning a billet adjacent a nozzle for spraying a stream of molten metal onto the surface of the billet. The billet is engaged by a tandem arrangement of holding devices which are attached to driven ring gears. With the holding devices engaging the billet rotation of the ring gears rotates the billet about its longitudinal axis as the billet is sprayed with molten metal from the nozzle. As the billet is rotated it is also moved longitudinally by servo-cylinders attached to the ring gears. The servo-cylinders advance and retract in sequence as the ring gears rotate to generate combined longitudinal and rotational movement of the billet adjacent the nozzle. Thus a uniform layer of metal is deposited over length of the billet to form a round billet exclusively by spray-casting.

Abstract: This invention relates to a conveyor apparatus or roller train with a series of conveyor stations, the support rollers of which can be optionally driven or shut off. To create an economical and reliable roller train with a separation and storage function, each conveyor station of the roller train has its own drive motor with a switchgear unit and the several switchgear units are connected together for control purposes into a cascade so that only the first switchgear unit of the cascade is connected to a higher-voltage switch cabinet.

Abstract: A process and apparatus for forming axially symmetrical bodies from molten metal droplets, where the droplets solidify to form the body on a rotating base, with the base moved in an extraction direction away from a spray plane of the metal droplets. The base is moved, the movement of the base and/or the quantitative flow of the metal droplets is controlled by a controller that communicates with a transmitter-receiver, preferably optical, that determines the position of the spray plane.

Abstract: An adjusting device for an electrode in a metal smelter. The device has a pressure mechanism comprising a, preferably, one-piece, ring-shaped flexible tube filled with a pressure medium. The pressure mechanism is positioned between clamp elements and radially positioned around the electrode and a frame. To ensure the secure retention of the electrode and increase the service life of the material of the pressurization tube, through a simple structural means, the present invention provides that the clamp elements have retaining brackets and guide brackets that are positioned to slide horizontally on the frame and support elements that are partially in contact with the tube that is filled with the pressure medium. The support elements are provided on the clamp elements.