Abstract: An operator panel for printers which includes visible function indicators as well as trigger elements for controlling printer functions has a single function operating and indicating field arranged in a matrix fashion with lines and columns wherein the lines indicate classes of functions and wherein a particular column includes designations as well as indications for the classes of functions; there is at the most one indication and/or one designation in any matrix intersection, a single key is associated with each of the columns; a second panel field is disposed alongside the first one, having a single operating key, and being individually organized commensurate with the lines and in a single column but being independent from said designations of the particular column.

Abstract: The hydraulic control is constructed for time-sharing of the pump which normally controls the turning mechanism, to operate other hydraulic equipment in conjunction with other pumps.

Abstract: The paper feeder incudes an upstream friction roller pair for single sheet feeding, a pushing tractor for endless sheet feeding, and a common downstream (behind the platen) friction roller pair. Each pair has one roller mounted on a pivot lever and the two levers linkedly held in a spring biased linkage such that consistently the downstream roller pair exert a smaller friction force while rotating at a higher speed.

Abstract: A holder for conductors on a rail has multiple claw pairs arranged in staggered and laterally offset relation, for minimizing the space requirement. Claws for holding adjacent conductors are aligned but separated for individual resilient deflection; several fasteners for the holder on the rail are disclosed, all providing for snap action kind of insertion.

Abstract: A method of continuous casting of ingots having a cross section with a high width to height or thickness ratio includes the steps of using a mold with a corresponding cross section and a casting pipe with bottom or near-bottom outlets and having laterally a minimum distance from the wall of the mold; preheating the casting pipe prior to casting to a temperature being at least approximately similar to the temperature of the metal later to be poured into the mold; initially closing the bottom outlet of the mold prior to startup; pouring molten metal into the mold for filling the mold up to a particular level while continuing heating the casting pipe; commencing withdrawal of an ingot from the mold along a curved path when the level of molten metal in the mold has reached the level of the outlet or outlets of the casting pipe.

Abstract: Opaque/translucent-transparent markings on a flat track pass through a gap defined by a carrier body sealed in a casing and having peripheral grooves ending at the gap of the body for embedding light conductors connected to light emitting and receiving means aranged generally on opposite sides of the gap.

Abstract: Rebounding of armatures driving print needles in a matrix print head, the armatures being arranged in a star pattern, is prevented by having them abutting against a ring, preferably of fluoro rubber having hardness from 60 to 90 shore A and being bonded to a central sleeve, preferably made of aluminum, by two component adhesive that can withstand at least 100 degrees C, preferably epoxy resin and a modified amide.

Abstract: Defects are detected in cylindrical rods, tubes or the like by a stationary transmission and receiving device arranged along the path which the test object passes axially by providing per test cycle a particular pulse being split for propagating bidirectionally azimuthally in the test object; both pulses are received repeatedly, once per circulation, so that a plurality of pulses appear with gradually declining amplitude; a sequence of burst signals, each of limited duration, is provided for purposes of timing and gating the burst being repeated per circulation on the basis of the expected and known propagation time between transmission and receiving portions; peaks of the received signal are detected once or twice per circulation and in synchronism with the timing and gating signal; the respective detected peak signals are digitized, summed in groups and the quotient of the sums is formed as quality indicator.

Abstract: Digital micro-processor accessory for generating obliquely oriented character printing (cursive writing) under utilization of matrix print principles using a plurality of print elements (e.g.

Abstract: A method of making steel in several stages under a reaction slag and accompanied by addition of oxygen carriers involving the moving of a metallurigical vessel along at least one line along which each step of a plurality of metallurigical process steps is carried out.

Abstract: A carriage cooperates with a cable way machine with an oblique multigroove pulley and a friction drive drum, so oriented that the cable runs in straight directions off and onto circular grooves of the drum. One cable portion runs from the cable way machine through the carriage towards a fixed anchoring point, the remaining cable portion runs also through the carriage to a tension biasing anchoring point; function and configuration of a main cable and of a hauling cable are thus combined.

Abstract: The mold is constructed as a unit to be inserted in a water tank, the water tank being mounted to an oscillating table. The unit itself is comprised of the mold tube proper mounted between two end flanges which are interconnected by means of a structure which either includes directly a cooling jacket enveloping the mold tube or the jacket is separately connected to the connection between the two end flanges. That unit as a whole is inserted into the water tank whereby the flanges establish top and bottom closures for the water tank, and the lower flange centers the unit in the tank.

Abstract: A pierced hollow rolled by obliquely positioned conical or barrel-shaped rolls, is held against excessive ovality by driven guide sheaves or disks acting in combination with guide bars downstream for controlling the rate of radial widening of the hollow. Oblique positions of the axes of the disks permits them to be of larger diameter.

Abstract: A positioning device for rollers in an edging stand includes two hydraulic cylinder piston adjusting drives being laterally offset from each other and from a vertical plane; further included are two spindle drives each with a spindle and a nut, the spindles being arranged one above the other in that plane, the stand further includes a cross head and a coupler plate which holds the nuts and is articulated to the pistons of the cylinder piston adjusting drives while the cylinders are articulated on the cross head.

Abstract: Electrically conductive work pieces such as steel tubes or pipes are tested by means of a transducer comprised of a row of magnetic pole pieces through which a dc flux pattern of alternating polarity and direction is set up along a line of pole extensions and through which bidirectional ac ultrasonic transmission takes place to discover defects which return ultrasonic pulses.

Abstract: Chain guide for and in relation to a chain or sprocket wheel and being made of a pair of complimentary guide shells made as press parts and having when put together a pair of vertically extending cross shaped grooves; guide noses extend above the grooves and facing each other across a narrowing closable gap and above a shaft and groove bottom portion of the sprocket wheel.

Abstract: Multiple paper sources, including several single sheet channels and a tractor driven endless sheet channel, feed a common channel; the single sheets are friction roller driven upstream from the common channel. The common channel is curved and feeds past a flat platen off a downstream friction roller pair which however deflects the paper to hold it taut against the platen. The friction rollers and tractors are reversibly driven and the tractor is separately disconnected from the drive and through a sensor control sheets can be retracted from the platen.

Abstract: Molten metal is discharged without slag from a ladle, vessel or the like having a closable bottom tap by weighing the vessel continuously and forming from the measuring values respective earlier and later average values as well as the difference thereof; that difference directly indicates the onset of inclusion of slag in the outflow so that the bottom top of the vessel can be closed when slag appears.

Abstract: In a method for continuously jacketing steel objects particularly tubing including the steps of cleaning the object by means of blasting its surface; chromatizing the cleaned surface by exposing the surface to a silicate containing watery solution of 3 and/or 6 valued chromium compound or compounds, drying the object at a temperature preferably between 105 degrees C. and 130 degrees C. which is well below the temperature necessary either for an application of a bonding and cover layer and/or for curing of the epoxy resin; a blend being applied prior to conversion of the chromatizing medium and any chromium iron compounds into a thermally stable intermediate layer including a chromium iron silicate oxide layer, the application of epoxy resin curing agent is carried out in two steps to obtain at least two sublayers, the first one of the layer being more reactive than the second one at temperature below 170 degrees C.

Abstract: A cleaning device for a drum being partially looped around by a conveyor belt having an upper and a lower stringer, the cleaning device being arranged in between the upper and lower stringers and comprises a plurality of strippers disposed for abutting the drum; a hydraulic cylinder mounts said strippers and a piston rod mounts carrying a piston, mounts the hydraulic cylinder which reciprocates on the piston; a plurality of downwardly extending soil shifting plates are mounted on the cylinder and move therewith; a dirt catching trough is pivotally mounted underneath the cylinder and stripping bars extend across an open surface of the trough and being in engagement with the soil pushing plates for cleaning these plates upon pivoting of the trough.