Abstract: A continuously advancing dynamic track stabilization machine comprises a first cross level measuring element arranged at the machine frame front end and generating reference signals corresponding to the measured cross level at successive points as the machine continuously advances, a second cross level measuring element arranged adjacent a track stabilization assembly spaced from the front end and generating a signal corresponding to the measured cross level, and a control for actuating the drives for applying a vertical load to the track rails and for vibrating the track in a horizontal, transverse direction. The control is arranged to receive the reference signals from the first cross level element, to store the received reference signals until the second cross level element has reached the successive points, to compare the stored reference signals with the signals generated by the second cross level element to obtain a control signal, and to transmit the control signal for actuating the drives.

Abstract: An apparatus for trimming three-dimensional workpieces made, e.g., of plastic comprises a bottom platen for supporting the workpieces and a cutter, which is movable relative to the bottom platen along a line of cut. To permit an automatic trimming by means of an inserted-tooth cutter, the bottom platen extends across the line of cut to support also that portion of the workpiece which is to be trimmed off. The bottom platen has a top surface for supporting the workpiece and is formed with a groove extending along the line of cut.

Abstract: In a machine for monitoring the vertical position of a contact wire of an overhead line extending above a track, which comprises a self-propelled machine frame including a superstructure, an undercarriage supporting the machine frame on the track and having wheels journaled on a wheel axle and engaging the running faces of the track rails, and a vertically adjustable measuring yoke mounted on the machine frame, a frame is vertically adjustably mounted on the machine frame for monitoring the vertical position of the contact wire, the monitoring frame having an upper end and a device connected to the upper monitoring frame end for measuring the vertical position of the contact wire, and a lower end at a fixed distance from the plane.

Abstract: Ceramic sintered body, in particular abrasive grain, based on .alpha.-Al.sub.2 O.sub.3, said body being arranged in such a manner that improved abrasive results are achieved, said body being bound into a structure by means of a glass-like ceramic binder and showing a drop in hardness from its center to its edge of less than 1800 N/mm.sup.2, preferably less than 1000 N/mm.sup.2, and, in particular, less than 500 N/mm.sup.2.

Abstract: An apparatus for processing workpieces, comprises a fixing deck, which has a supporting surface and is provided with fixing device, and a numerically controlled tool unit, which is movable over the supporting surface. In order to effect a reliable fixing of the workpieces by a simple and effective method, the fixing device comprises at least one holding-down unit, which includes a holding-down carriage, which is movable over the supporting surface, and a power-operable holding-down finger, which is operable at selectable locations, and that the carriage moving device and finger actuating device are adapted to be controlled in dependence on the control of the tool unit.

Abstract: In a system for fully automatically assembling a plurality of parts into a workpiece, each part is conveyed to the respective work stations in a holder which is associated with the workpiece at the work station where the part is removed from the holder and assembled.

Abstract: The invention relates to a seat, in particular for vehicles, with a padding of foamed plastic with a supporting body made of an open-cell elastic plastic foam having a first specific gravity and with a flame-retardant layer made of an open-cell elastic plastic foam having a second specific gravity different from the first, and/or an upholstery material, which are connected with each other, in particular are glued in places.

Abstract: It is desired to provide an apparatus for needling a nonwoven web with a brushlike pierceable support and to provide surface patterns independently of a control of the depth of penetration of the needles. To that end the bristles of the covering of bristles of the pierceable support vary in accordance with a predetermined pattern as regards the bristle spacing and/or the extent to which the bristles protrude toward the nonwoven web.

Abstract: Sintered microcrystalline ceramic material based on .alpha.-Al.sub.2 O.sub.3 with an addition of 0.01 to 2.0 weight percent of a cerium compound, consisting of a microcrystalline matrix and 0.1 to 30 volume percent whisker-like needles, whereby said cerium compound is mainly present in the needles. The whisker-like needles give this material a special tenacity combined with good abrasive results.

Abstract: A low-voltage lighting fixture comprises a pair of parallel electrical conductor rails, and an electrical current collector shoe slidingly mounted on the conductor rails. The collector shoe comprises a pair of collector heads slidingly mounted on the rails and a socket carrier electrically conductively connected to the collector heads and comprised of two electrically conductive socket sections electrically insulated from each other by an insulating element positioned between the socket sections. The socket carrier is mounted between the collector heads for rotation about an axis extending perpendicularly to the rails, and there is a socket for a lamp on the socket carrier.

Abstract: In a sliding surface bearing for high loads, comprising a sliding layer (2), which has physically been applied in a vacuum directly to a bearing metal layer (1) and consists of a base material with finely divided inclusions (6), which are substantially insoluble in the base material at the operating temperature, substantial freedom from wear and a minimum tendency to mixing by rubbing are to be ensured in that all inclusions (6) have a lower hardness than the base material, which has been crystallized to form columns having a preferred orientation at right angles to the sliding surface (4).

Abstract: An apparatus for charging products to be frozen onto a freezer plate comprises a conveyor arranged to place the products in front of a charging opening of a freezer, and a device for transferring the products in a translatory movement from the conveyor through the charging opening onto the freezer plate. To obtain a strong transfer force and effective control, the transferring device comprises a pusher bar arranged to engage the products to be frozen on the conveyor, a chain drive arranged to impart the translatory movement to the pusher bar engaging the products, the chain drive comprising chains to which the pusher bar is attached and driving pinions about which the chains are trained, the chains having links short enough to enable the chains to engage the pinions over about a quarter of a circle and the pinions being affixed to a rotary shaft, a reduction brake motor floatingly mounted on the rotary shaft and comprising a return arm.

Abstract: A freezer comprises an insulated housing with two opposite walls defining an interior chamber therebetween, the walls respectively defining a charging opening and a discharge opening for respectively charging products to be frozen into the interior chamber and discharging the frozen products from the interior chamber, and a stack of horizontal freezer plates arranged in the interior chamber. Vertical screw jacks vertically displace the stack of freezer plates whereby they are successively moved to the level of the openings.

Abstract: A needle board for an apparatus for needling a non-woven fabric comprises a carrier plate, which is provided with an elastic layer for retaining needles, which are detachably inserted in through holes and have angled needle butts, which are supported on the surface of the board. In order to ensure an improved guidance and retention of the needles the elastic layer is provided on that surface of the board which is remote from the needle butts.

Abstract: An apparatus for rationally spreading a continuous length of different types of sheet material on a surface of a work table comprises a sheet material spreading carriage movable over the work table surface between a sheet material delivery station and a sheet material cutting station spaced therefrom, a cutting device arranged on the carriage behind the delivery position in the direction of supply of the sheet material for cutting the continuous length of sheet material spread on the working table surface into predetermined lengths, and a pressure roller mounted on the carriage and movable towards and away from the spread sheet material between an operative and rest position.

Abstract: Process and apparatus for the quality control of individual, one-piece receptacles, which are open at one end. The individual, one-piece receptacles are preferably aligned, in several groups, side by side, similarly with respect to their spatial orientation. The receptacles are turned over to a conveyor line where they pass through at least one testing station at which measurement results specific to each type of receptacle are obtained. The analysis of these results indicates the structural integrity and accuracy of shape of the respective receptacle. The receptacles, as a function of the receptacle-specific measurement results, are removed from the conveyor line if defective; and only the structurally integral and shape-accurate acceptable receptables are stacked and further advanced as a stack.

Abstract: A mobile track tamping machine comprises a machine frame, undercarriages mounting the machine frame on a track, and a plurality of independently transversely and vertically adjustable tamping tool units aligned transversely to the track, each tamping tool unit comprising a pair of reciprocable vibratory tamping tools including tamping picks immersible in the ballast, drives for reciprocating the tamping tools in a direction extending substantially perpendicularly to the ties and for vibrating the tamping tools, and a drive for vertically adjusting the tamping tool unit. Respective transversely pivotal carrier frames for two of these tamping tool units are mounted on the machine frame, each carrier frame being pivotal about a vertical axis in a plane extending substantially parallel to the track, and an independent drive is connected to each carrier frame for pivoting the carrier frame.

Abstract: Process and apparatus for the quality control of individual, one-piece receptacles, which are open at one end. The individual, one-piece receptacles are preferably aligned, in several groups, side by side, similarly with respect to their spatial orientation. The receptacles are turned over to a conveyor line where they pass through at least one testing station at which measurement results specific to each type of receptacle are obtained. The analysis of these results indicates the structural integrity and accuracy of shape of the respective receptacle. The receptacles, as a function of the receptacle-specific measurement results, are removed from the conveyor line if defective; and only the structurally integral and shape-accurate acdeptable receptacles are stacked and further advanced as a stack.

Abstract: In the operation of a top-blowing steelmaking converter having at least one blowing lance, the distance of said lance from the surface of the molten metal bath is controlled in dependence on the sound levels of the blowing noise measured through the slag at selected frequencies. In order to minimize the risk of slopping, the actual values of the sound levels measured at predetermined frequencies are combined to form a resultant value, the difference between said resultant value and a predetermined reference value, which is associated with a sound level and indicates that slopping is likely to occur, is determined, and said difference is used as an indication of the probability of an occurrence of slopping and is compared with at least one predetermined probability limit, the distance of the blowing lance and optionally also the oxygen supply rate is corrected when said difference exceeds said probability limit.

Abstract: In the operation of an incremental measuring system, a measuring scale is scanned for generating periodic sinusoidal, analog measured-value signals. Digital countable signals are derived from the measured-value signals in conjunction with an electronic subdivision of the scale and are delivered to an electronic evaluating unit. Each countable signal is associated with a certain phase angle of the measured-value signals.