Abstract: A chain scraper conveyor with conveying chute includes a central guided tension chain and catches attached thereto, which are guided in the chute walls. The catches have undersides with a chain link holder assembly for an O-shaped chain link arranged parallel to the chute floor, and the chain link holder assembly includes a stirrup holder and a chain stirrup which is placed on the chain stirrup holder with the positioned chain link, and the stirrup is also positioned in the chain stirrup holder with the chain stirrup clamping the chain link into the chain stirrup holder in the area of its center. A set-screw is provided on each of the stirrup ends, which are set with play into a corresponding bore in the catch and secured by a nut on the other side of the catch. The chain stirrup is stretched into the stirrup holder with a curved elastic deformation, whose curve lies in the plane of the catch, and mounted on the chain link.

Abstract: The method and apparatus for controlling the operation of a turbocompressor which has a suction and a discharge with a blow-off valve for regulating the performance thereof includes a sensor in the suction and discharge for sensing an operating condition such as pressure and temperature which is connected to deliver to a comparator a performance signal for the control of the blow-off valve. The control signal which is delivered to the comparator is modified in accordance with a memory which includes a blow-off curve gradient which effects the amplification of the signal which is sent to a controller in accordance with the blow-off conditions which are to be set in motion on the basis of the performance characteristics which have been sensed.

Abstract: In known MOS dosimeters for measuring an energy dosage within radiation fields, which comprise a semiconductor substrate with an insulator layer and a metal contact or poly-si-contact, a measurement is taken and irreversible damage is done to the insulator layer. Prior art dosimeters of this kind cannot be electrically reset, nor can such MOS structures be directly integrated with evaluating electronics. The present invention avoids these drawbacks by providing a hard-radiation resistant insulator layer with a floating gate X. Such a resistant insulator layer is produced in a "hardened" process by thermal dry oxidation of silicon at low temperatures of about 850.degree. to 950.degree. C. The inventive dosimeter makes it possible to integrate, on the floating gate, both negative and positive charges. This permits an integration of MOS sensors and signal processing electronic elements on a single chip.

Abstract: A Method of Controlling the Withdrawal Process is carried out in a Singling Device and Arrangement to increase the throughput of singled shipments such a letters, postcards and the like from a singling device to a conveyor, the delivery of successive shipments from the singling device is controlled as a function of the measured parameters like length, height, thickness, stiffness, surface roughness, and weight of the shipment previously withdrawn from the singling device so that a minimum distance depending on the parameters of the preceding shipment can be adjusted between the withdrawn shipments on the conveyor. Thus, the singled, successive shipments can be offered to a distribution section, such as one equipped with directing switches and stacking compartments, via the conveyor, the minimum spacings between them and with the assurance of troublefree stacking of the shipment in the stacking compartments.

Abstract: In a sheet feed bench with two parallel sheet feed rails that are adjustable relative to one another and with each having blowing jets on their surfaces facing one another directly above the level of the bench, connected to a common source of compressed air, the sheet feed rails resting on the bench surface are provided with groove-like or notch-like enlargements at the level of the blowing jets. Each of these extend over the entire length of the sheet feeder rails. These enlargements make it possible to position the inner surfaces of the sheet feeder rails so closely and tightly against the longitudinal edges of the stack of sheets that only small amounts of compressed air can escape upward. The formation of an air cushion is improved by this in such a way that the stack height can be more than double without adversely affecting the single-sheet separation.

Abstract: This invention relates to a knocking-down septum comprising a steel shutter structure on the slats of which a granulated material rests. The granulated material may consist of granules of natural or synthetic rubber, also of recovery rubber and possibly of a self-extinguishing type of rubber, of dry sand, or of a mixture of sand and rubber or the like. This granulated material lies on the slats of the shutter structure in accordance with the shutter's natural angle of repose and is thereby retained by the shutter. When a bullet crosses the thickness of the granulated material the granulated material slows down the velocity of the bullet.

Abstract: The passage of ore through a pass is controlled by means of a rotatably mounted arcuate door which is orientated so that a convex face of the door faces oncoming material flow. When the rate of material flow is so high that the door is forced open, fins on a concave face of the door react with the material flow and a force is generated which rotates the door to a blocking position at which the rate of material flow is substantially reduced.

Abstract: A brake actuation unit comprises a fluid pressure cylinder with a piston movable in the cylinder which has a central projection portion with a recess having axially spaced opposed coupling surfaces. The spindle is centrally arranged in respect to the piston and a nut is threadable on the spindle and has a tubular portion terminating in a flange which has a flange projecting portion extending into the recess of the piston projection portion and it has opposed coupling surfaces engageable with respective opposed coupling surfaces of the piston projecting portion so as to form respective axially opposite direction of movement coupling pairs. The guide sleeve is positioned over in spaced relationship to the nut tubular portion and has a radially extending collar on an end thereof adjacent the piston. An output head is movable in an axial direction to apply a braking force and has a tubular portion telescopically engaged over the guide sleeve.

Abstract: A hydraulic or pneumatic oscillating piston motor has a housing (1), a driven shaft (2) mounted in the housing for rotation and an oscillating piston (3) that is fixed to the shaft. The piston has two lever arms (49,8) having pressure areas of different size, which arms are sealed with respect to the housing (1) dividing the housing (1) into two working spaces (4,5) into which a pressure medium can be introduced. The oscillating piston (3), actuated by the pressure medium, is free to oscillate back and forth through a maximum angle of rotation which is determined by means of a stop (38) and the housing. The first lever arm is designated in the form of a bushing (49) whose shell surface along its external periphery is at least partly surrounded by a coaxial shell seal (64). This seal has uniformly distributed, rib-like sealing lips (75) along its periphery and interacts with a opposite surface (9) attached rigidly to the housing (1). The maximum angle of rotation of the oscillating piston (3) is at least 180.

Abstract: The invention concerns a pipe spacing grate for guidance of pipes in heat exchangers, for example, steam generators, whereby the grate is formed of intersecting grate rods, arranged in more than one plane and encircled by a frame. The frame has a groove running about the inside for accommodation of the ends of the grate rods. The grate rods (3) in the frame (2) are kept at a definite spacing from each other by distance bolts (1). The distance bolts (1) have a cross slot (5) to receive the grate rod (3), and also a projecting piece (6) in the cross slot (5), which engages a corresponding recess (7) of the grate rod (3). The distance bolts (1) are secured against falling out by a surrounding cover ring (4). A pastelike plastic can be introduced into a lengthwise boring (8) of the distance bolt (1), fixing the grate upon hardening.

Abstract: An electromagnetic interference shielding cover for computer terminals or the like comprising a layer of woven metallic or metallized synthetic conductive fabric covering the computer terminal top side, bottom side, right side, left side, front side and rear side. The embodiments described provide full electrical and magnetic continuity throughout the shielding cover and can take the form of a free standing box-like rigid cover, or a fitted flexible cover. Woven metal or metalized conductive mesh conditioned for viewing enchancement and glare reduction is provided in an individual, framed section and connected over appropriate cut-out openings to allow continuity of electromagnetic shielding and visual access.The shielding cover may consist of a single enclosure or where appropriate, multiple enclosures connected by means of an electro-magnetically continuous joint allowing console articulation.

Abstract: The invention relates to a process for guiding workpieces on a rolling seam welding machine or vice versa. In the process the relatively moved part is driven via its guide means of a continuous path manipulating device in an extra conveyor motion in the same direction and with the same speed as a tool-caused conveyor motion. The two conveyor motions are monitored for synchronicity by a displacement sensor that is connected for control purposes with a control unit of the manipulating device. When a difference occurs between the two conveyor speeds, manifested by the turning of the moved part around the displacement sensor, one of the two conveyor speeds is readjusted, with short-term over-compensation of the difference.

Abstract: A sewing machine is provided with a carrying handle movably received at the housing and connected with at least one thread guiding element. The thread guiding element is arranged so that the work to be performed on the sewing machine is favored by its position and access to the carrying handle is not hindered even in the threaded state. The thread guiding element is moved with the carrying handle by a drive mechanism associated with the carrying handle when the handle is moved from an inactive position in the housing to its carrying position the thread guiding element executes a relative movement thereto from its sewing position to its threading position.

Abstract: A process for producing a filter with multiple folds from an aqueous fiber mixture that is applied to a porous form, in which a paper-like filter mat is produced on the form under the action of pressure, and it is carried out without mechanical deformation of the rough casting. This is achieved pursuant to the invention by the fact that the aqueous fiber mixture is deposited on the porous form having the contour of the filter, from loading chambers separate from one another, and the filter is built up of adjacent fold sections in layers on the form by separate introduction of the fiber mixture to the fold sections connected to one another.

Abstract: A soldering machine with two parallel guide profiles for revolving chains provided for with soldering fingers, include a succession of a fluxer, a preheater and a solder bath along with the guide profiles extend. One profile is mounted fixed laterally above the succession and the other is adjustable directly above the succession. Thereby the adjustable guide profile is heated up more, especially under the action of the preheater, whereby, due to elongations of the guide profile, problems arise in the conduction of printed circuit boards held at the revolving chains by means of soldering fingers. To eliminate this problem, the invention provides that each guide profile is provided with at least one longitudinally extending coolant duct and that each coolant duct is connected to a pump for a coolant. Thereby the temperature actions on the adjustable guide profile 5 are compensated.

Abstract: The device comprises a plurality of pipes (7a to 7h) which may contain liquid under pressure and whose ends are radially fixed in a circle in a plane, a coupling unit (17) having an end communicating with another pipe (40) and rotatively mounted in the plane within the circle, means (16) for driving the unit in rotation, and means (21) for bringing its end in succession in coincidence with the ends of the plurality of pipes. The coupling unit is telescopic, its axis of rotation (12) extends through a bowl (2) and its movable end (26) communicating with the other pipe (40) cooperates with the ends of the pipes (7a to 7h) which are closed by automatic valves.

Abstract: A colorimetric gas dosimeter, which contains a granular indicator substance in a closed, transparent, hollow unit that can be opened on one side, is provided in such a way that the diffusion cross section for the hazardous substance molecules is independent of the degree of discoloration of the indicator substance and the detection sensitivity is thereby increased. This is achieved by sub-dividing the hollow unit into several chambers extending along its longitudinal axis, at least one of which is filled with the granular indicator, and is located adjacent to an indicator free chamber and is separated from this by a separating wall permeable to gas.

Abstract: An identification device including a device body, a drive unit housed in the device body, a sliding dovetail shaped armature with a horizontal slot, a needle bar which is inserted into the armature and is secured by means of a spring loaded ball and screw. The armature moves in a vertical direction by means of its connection with a circular rotor attached to the drive unit. The rotor has at its rear end an offset pin which engages the horizontal slot located at the upper front portion of the armature, wherein the rotational movement of the circular rotor is translated into vertical motion of the sliding dovetail armature which assures that therre will be no horizontal displacement of the needle bar and thus achieving precise columnation of the needle bar and therefore precise application of the identification ink.