Abstract: An antenna has a parabolic reflector and a tubular exciter which is provided for illuminating the reflector. At least one waveguide supports the exciter and connects electrically to the exciter for the guidance of electromagnetic waves to the exciter. A mount serving for mounting and stabilizing the reflector has an extension which extends radially beyond the edge of the reflector and has a support arm which is bent in a direction towards a front side of the reflector and extends forward beyond it. A waveguide bearing the exciter is fastened to the support arm.

Abstract: A device for transferring current between two end points between which a ribbon cable (10) extends, the ribbon cable serving for an electric connection and being contained in a cassette in coiled form, the cable having at least two electric wires. Plug pins (12) are connected to bared wires of the ribbon cable (10), the pins being arranged in a prefabricated housing (G) of insulating material. The housing (G) consists of a base body (16) and a cover (17) which are locked to each other in the closed position of the housing (G). Projections (19) are arranged on the cover (17), the projections resting firmly against the plug pins (12) in order to fix the position of the plug pins in a closed position of the housing (G). The ribbon cable (10) is passed through a separating joint (T) disposed between the cover (17) and the base body (16), and is clamped therein in the closed position of the housing (G).

Abstract: A device for transferring a signal has two end points (6, 8) between which a conductor (10) extends in spiral turns and is arranged within a substantially circular cassette (K). The cassette (K) consists of two parts, a rotor (11) which is turnable about its axis and a stationary stator (12) which surrounds the circumference of the rotor and encloses the conductor (10). On the rotor (11) there is an outward protruding extension (15) for receiving a screw (16) which is displaceable in the axial direction of the cassette (K), and serves for a locking of rotor (11) and stator (12). There is also present on the rotor (11) a spring element (17) which is displaceable by means of a screw (16) and which, in mounting position of the cassette (K), is held firmly on the stator (12) and, in the working position of the cassette (K), is separated from the stator (12) by a space.

Abstract: The invention relates to a device for the transmission of current between two end points between which there is arranged a ribbon cable (10) having at least two electric conductors. The cable is contained in a housing, serves for electrical connection, and extends in coils. The length of the conductors is substantially greater than the distance between the two end points. At least one of the two end points is moveable relative to the other. For a simple connecting of a further extending line, metal conductors (14), which are insulated from each other, are connected in electrically conductive manner at their two ends to the conductors of the ribbon cable (10). The metal conductors have a course wherein their free ends, developed as contact pins, are accessibly in the completely mounted device from the outside of the housing through a passage opening (16) in a wall (1a) thereof.

Abstract: There is disclosed a method for the continuous marking of electric strands with which annular markings, which are limited in axial direction, are applied to the surface of the strands by means of color jets. The color jets emerge under pressure from at least one nozzle which is driven by an electrical oscillation system, the frequency of which is controlled proportionally to a rate of withdrawal of the strands. For an easy changing of the axial distance between the markings, square pulses are fed to the oscillation system from a converter which converts electrical d.c. voltage into a square waveform signal at a specific frequency. The square waveform drives the oscillation system at the specific frequency. As a desired value, the converter is fed a d.c. voltage which is proportional to the rate of withdrawal of the strand.

Abstract: A method for the continuous marking of elongated material (1) which is moved in its longitudinal direction, by which ring-shaped markings which are limited in axial direction are applied to the surface of the material (1) by means of ink jets (2). The ink jets (2) emerge under pressure from two nozzles (6, 7) which are arranged parallel to each other and swing continuously on a swing shaft (5). If only one nozzle (6) is to function, the other nozzle (7) is closed by a 3/2-way valve (20). At the same time, a bypass (18) is opened through which the quantity of ink intended for the disconnected nozzle (7) is conducted away. The ink jet (2) of the still functioning nozzle (6) is then retained without change.

Abstract: A device for removing a winding of an electric linear motor which winding is arranged in downwardly open grooves of a bundle of laminations fastened to a support. The individual strands of the winding are held fast in the grooves on holders. The holders have feet with webs which extend out of the grooves, the feet engaging in mounted position in undercuts in the grooves. The device includes at least one removal device arranged on a vehicle which is moveable on the support, the device having at least one pressing tool and at least one pulling tool coupled with it. The pressing tool has two bevels extending in V-shape to each other which are intended to come against the webs of the feet, by which bevels, upon the downward movement of the removal device, every two webs present on opposite sides of the holder are pressed towards each other.

Abstract: A light-wave conductor cable is described within the core of which there is at least one ribbon line (1) in which light-wave conductors (2) are arranged alongside of and parallel to each other. The light-wave conductors (2) are enclosed between two ribbons (3, 4) the material of which has the same coefficient of thermal expansion as the light-wave conductors (2). The ribbons (3, 4) consist preferably of fiberglass-reinforced plastic. The ribbon line (1) may be disposed within an outer jacket (20), and therein arranged straight or curved or, in the case of several ribbon lines (1), in ordered or random fashion and about a core of the light-wave conductor cable.

Abstract: In a ribbon consisting of a cross-linked plastic which can be shrunk by the action of heat and can be placed in the manner of a collar (2a) around an elongated object (4), and after the connecting together of the edges (3a, 3b) of the ribbon, can be shrunk onto the object (4) by the action of heat. The edge regions (3a, 3b) of the ribbon consist of non-cross-linked plastic and a connecting together (5) of the ribbon edges (3a, 3b) is effected by fusion welding.

Abstract: A ribbon cable (1) having optical waveguides (2) which are laminated between two ribbons (3, 4). The ribbons (3, 4) have an adhesive layer on one side. They are bonded to the optical waveguides (2) and to each other between them as well as at the edges. The ribbons (3, 4) have the same coefficient of thermal expansion as the optical waveguides (2), they preferably consist of fiberglass-reinforced plastic.

Abstract: A dipole exciter for an antenna for the transmission of electromagnetic waves which is arranged on the free end of a rigid co-axial line is described. The dipole consists of two flat metal pieces (10, 11) which are arranged on the outer conductor (6) of the line and the main dimension of which extends at right angles to the axis of said line.

Abstract: There is disclosed a communication cable with wave guides which are combined in ribbon lines. The optical wave guides are fixed in the ribbon lines only at fastening places which lie one behind the other in axial direction and are spaced apart from each other. The ribbon lines are marked at the fastening places, for instance by color. The marking is identical for a ribbon line over its entire length. All ribbon lines arranged in the cable are marked differently.

Abstract: A circuit for protecting electronic devices which are fed from a source of dc voltage and to which a subscriber's line (ASL) is connected. In order to limit the current in the event of an overload on the subscriber's line (ASL), a MOSFET (T1) is provided as current-limiting component. The MOSFET (T1) is disconnected and re-connected periodically by means of a relaxation generator (K) when the MOSFET is in its current-limiting condition. Upon the normal operation of the circuit, the relaxation generator (K) does not operate. By proper dimensioning thereof, the time for which the MOSFET (T1) is blocked can be roughly adjusted as compared with the time in which it acts as current limiter. In this way, too great a heating of the MOSFET (T1) is avoided.

Abstract: The invention relates to a device for transferring current between two contact points which are movable relative to each other. Between the two contact points there is arranged a ribbon cable (10) which is wound in the manner of a spring housing and which is bent at its ends by folding by 90.degree.. Over each of the folded ends of the ribbon cable (10) there is provided a prefabricated L-shaped molding (12) of stable insulating material. The cable ends are so stabilized by the moldings (12) that molding can easily be effected around them.

Abstract: The invention relates to a flame-resistant electric line having a conductor (1) which is surrounded by an insulation (2) over which there is a shielding (3). A ribbon (4) consisting of a glass cloth provided with a metal layer on one side is wound in overlapping manner over the shielding (3). The metal layer is on the outside in the line. The width (B) of the overlap is between 7% and 35% of the width of the ribbon (4). A sheathing (5) of insulating material is arranged over the ribbon (4).

Abstract: A circuit is described for producing an alternating voltage in an electronic device which is remotely fed over a digital transmission path. By the pulses of a clock (8) two capacitors, C1, C2 are charged via a transistor (T1) and a transformer (10), one of them (C2) being discharged over a parallel resistor (R2). A coupling capacitor (CK) which is charged by the other capacitor (C1) is discharged alternately by the influence of the dischargeable capacitor (C2) over a transistor (T2).

Abstract: A circuit arrangement is disclosed by which one of two subscribers (T1, T2) can be connected to a subscriber line (ASL) of the public telecommunication network if a device (2) associated with both subscribers (T1, T2) experiences trouble. The two subscribers (T1, T2) are, in normal operation, both connected to the subscriber line (ASL). Transmission of the signals takes place in this case between the device (2) and an office of the telecommunication network digitally over the subscriber line (ASL). In the event of a disturbance, one subscriber (T1) can be connected by a bypass line (8) to the office with analog signal transfer.

Abstract: In a device for the stranding or stranding-on of stranding elements to form a cable, stranding members of a stranding machine and storage receivers of the machine are combined to form a unit, and are present in duplicate to be interchangeable with each other. The unit with the storage receiver which has just been filled forms the active part and the other unit with the storage receiver which is to be filled forms the passive part in a stranding operation.

Abstract: An antenna exciter for two different frequency bands which consists of two polarization switches (3, 4) arranged axially one behind the other and of a feed horn (5). The polarization switches (3, 4) are circular tubes of different inside diameters, the diameters being the same over the entire length. To each polarization switch (3, 4) there can be connected, spaced axially from each other, two wave guides (6, 7, 8, 9) 90.degree. apart from each other. Opposite the wave guide (9) adjacent the feed horn (5) a stop closed by a short-circuit plate (12) is arranged in the corresponding polarization switch (4). Between the feed horn (5) and the adjacent wave guide (9) and between the points of connection of the two wave guides (8, 9) of the larger polarization switch (4), two axially extending webs lying diametrically opposite each other and of a predetermined dimension are arranged therein.

Abstract: In a multi-wire electric power cable, particularly a supply cable for borehole units such as pumps, each insulated wire is protected by a corrugated sheath. In order to be able to withstand high pressures of, for instance, 300 bar, the corrugation of the corrugated sheaths is so developed with respect to depth and pitch of corrugation that the length of each corrugated sheath is between 33 and 67%, and preferably 45 to 55%, shorter than the smooth tube from which it has been produced.