Abstract: A terminal connector for high-current electrical cables includes an electrically-insulating casing of resin-impregnated glass fibers surrounding an end portion of an electrical cable, and a conductive member connected to the end portion of the cable and extending through an axial end of the casing. The casing has an inner collar which cooperates with two movable nuts to adjustably mount the conductive member in an axial end of the casing, and an outer collar to secure the casing to a base plate. The conductive member is formed with an annular groove which receives a resilient sealing ring. The sealing ring slides along an inner circumferential wall of the casing and seals the interior of the casing from its exterior throughout the entire adjustment range of the conductive member. A protective electrode attenuates electrical fields in this axial end, and an electrically-insulating housing having a fluid medium contained in its interior surrounds the casing.

Abstract: A power-transmission system connects a source of electrical energy to an electrical load. The power-transmission system is comprised of a first cable system driven above its natural power and a second cable system connected in series with the first cable system and driven below its natural power.

Abstract: A corrective network for obtaining a desired overall frequency response comprises a plurality of tunable, non-active resonant circuit stages, each connected with a source and operative for modifying the frequency response over a respective portion of the frequency spectrum. Each resonant stage comprises a variable differential capacitor having a rotor plate terminal and two stator plate terminals. Each stage further includes a series circuit branch constituted of a resistor and an inductor which has one end which is connected to the respective rotor terminal of each stage. The network further includes a common terminal at which the other ends of the series circuit branches are all connected. The source may be a transformer having a tap intermediate its end terminals, and an output impedance is located between the common terminal and the tap of the transformer. The stator plate terminals of at least some of the stages are connected to respective ones of the end terminals of the source.

Abstract: Temperature variable resistor or thermocouples measure the temperature of the goods. The so-measured values are converted to digital temperature signals under control of a clock pulse generator at predetermined time intervals. The digital temperature signals are stored and the so-stored signals utilized to address storage locations in a permanent storage, each of the storage locations storing a weighted digital temperature signal. The weighted digital temperature signals are converted to pulse sequences and the so-formed pulse sequences summed in a summing circuit. The sum signal furnished by the summing circuit is indicative of the effectiveness of the temperature processing. Digital or analog display means may be utilized to display the sum signal and/or the individual digital temperature signals.

Abstract: A cable includes a tubular multi-layer electric conductor, electric insulation surrounding the electric conductor, and an outer cable jacket surrounding the electric insulation. An inner tubular member of titanium or alloyed stainless steel is accommodated in the electric conductor and defines a channel for a cooling medium such as water. At least one of the layers constituting the electric conductor is a circumferentially complete tubular element surrounding or surrounded by a layer comprising a plurality of juxtaposed elongated electric conductor elements. In the region of contact of the electric conductor with the inner tubular member, there is provided at least one groove extending longitudinally of the cable for conducting the cooling medium which escapes from the cooling channel in case of damage to the inner tubular member to the ends of the cable so as to indicate the occurrence of such damage.

Abstract: A connector for light-conductive fibers includes a connecting body provided with at least one receiving passage and at least two aligning passages. The connecting body is subdivided into two connecting members along a plane normal to the axes of the passages, the connecting members having contact surfaces at the subdividing plane which are adapted to abut one another when the two connecting members are assembled. The end portions of the light-conducting fibers are introduced into the receiving passages so that the end faces thereof are flush with the contact surfaces, and the connecting members are assembled in alignment with one another, using aligning elements accommodated in the aligning passages of the connecting members. The connecting body may be produced by embedding auxiliary elements corresponding in diameters to the aligning elements and the fibers, in a body of a hardenable material, and by removing the auxiliary elements from the body after the hardening of the material.

Abstract: A compensating circuit has a frequency response curve into which can be introduced elevations or depressions of selected breadth at selected frequencies. The compensating circuit includes a plurality of tunable circuit stages associated with different frequency ranges. Each tunable circuit stage includes a resistor and an inductor connected in series with each other and to the rotor terminal of a differential capacitor having two stator terminals. The first stator terminals of the differential capacitors are connected to the first winding or windings of one or more differential transformers, while the second stator terminals of the differential capacitors are connected to the second winding or windings of the one or more differential transformers. The voltage induced across the one or more differential transformers is then employed to supplement the voltage which is being transmitted to the output resistor of the compensating circuit by the input transformer of the compensating circuit.

Abstract: A low loss corrective network for obtaining a desired overall frequency response comprises a plurality of tunable resonant circuit stages which are operative for modifying the frequency response over respective portions of the frequency spectrum. Each resonant stage comprises a variable differential capacitor having two stator plate input terminals and a rotor plate output terminal. Each stator plate input terminal is connected to respective end terminals of a source. A single voltage divider common to all of the stages has two end terminals which are connected with the source and which are also commonly connected with all of the respective stator plate input terminals of the individual stages, and a tap point located intermediate the end terminals of the divider which is commonly connected with all of the respective rotor plate output terminals of the individual stages. Moreover, matching resistors and inductors are employed to compensate for the capacitive loading presented by the differential capacitors.

Abstract: A high-strength rope, strand or yarn includes a core component, such as a fiber or a plurality thereof, of elastic synthetic plastic material, the core component having a predetermined length. A plurality of envelope components surrounds the core component and includes filaments of high tensile strength synthetic plastic material, the filaments being of substantially equal length exceeding the predetermined length. The envelope components may be in form of strands or yarns, each including a plurality of high tensile strength filaments. The rope may be soaked with flexible wear-resistant material, and a jacket of flexible, wear-resistant synthetic plastic material may surround the rope or the strands, yarns or filaments which constitute the same.

Abstract: Reinforcing fibers are wound onto a spool together with fibers or strips composed at least in part of a material which is to form a matrix for the reinforcing fibers. The spool is likewise at least partially constituted by such a material. After winding, the resulting assembly is placed into a container having an inner diameter which is the same or slightly larger than the outer diameter of the assembly. The container is also composed at least in part of a material which is to form a matrix for the fibers. The resulting composite blank is then placed in an induction oven and heated to a temperature which does not detrimentally affect the reinforcing fibers but which is sufficient to favorably influence the formation of reaction layers between the reinforcing fibers and the matrix material.

Abstract: A communication system has at least one supervisory station and a large number of repeater stations spaced along a four-wire two-way transmission line. A number of repeater stations are selected at equal intervals along the line to have a coupling network coupling test signals from the first pair of wires in the transmission line to the second pair of wires which differs from the coupling network of the remainder of the repeater stations. To locate a fault, test signals in the form of pulses are sent from the supervisory station to the repeater stations. At each repeater station, if operative, the received test signals are coupled to the second pair of wires for retransmission back to the supervisory station.

Abstract: An internally cooled high-energy cable is equipped with terminal connector assemblies for supplying electric current thereto and withdrawing the current therefrom, and with terminal connector assemblies for supplying a cooling medium to the cable and discharging the spent cooling medium therefrom. A connecting pipe connects the two assemblies at each end of the cable and conducts the cooling medium from one to the other. The flow-through cross section of the channel for conducting the cooling medium through the cooling medium terminal connector assembly is smaller than the flow-through cross section of the cooling channel of the cable which results in more rapid flow of the cooling medium through the former channel and in enhanced cooling effect, so that the heat resulting from the decline in the electric potential of the cooling medium in the cooling medium terminal connector assembly is effectively dissipated.

Abstract: A principal winding is wound around two cores made of soft magnetic material. The principal winding has N turns. Wound around only one of the two cores is a magnetizing winding. A decoupling amplifier of gain v.sub.1 energizes the magnetizing winding via the amplifier output, and the amplifier has an input across which is applied the voltage across the principal winding. The magnetizing winding has v.sub.1.N turns. If the principal winding and the magnetizing winding have the same winding direction, then the gain of the decoupling amplifier is chosen positive. If the principal winding and the magnetizing winding have opposite winding directions, then the gain of the decoupling amplifier is chosen negative.

Abstract: A cable includes a tubular multi-layer electric conductor, electric insulation surrounding the electric conductor, and an outer cable jacket surrounding the electric insulation. An inner tubular member of titanium or alloyed stainless steel is accommodated in the electric conductor and defines a channel for a cooling medium such as water. At least one of the layers constituting the electric conductor is a circumferentially complete tubular element surrounding or surrounded by a layer comprising a plurality of juxtaposed elongated electric conductor elements. In the region of contact of the electric conductor with the inner tubular member, there is provided at least one groove extending longitudinally of the cable for conducting the cooling medium which escapes from the cooling channel in case of damage to the inner tubular member to the ends of the cable so as to indicate the occurrence of such damage.

Abstract: A cable for transmitting high electric energies comprises an inner tubular member which is provided with a channel for conducting a cooling medium, cable jacket surrounding the tubular member with spacing, and insulation provided intermediate said tubular member and cable jacket. The tubular member is circumferentially complete so that no cooling medium can escape into the insulation and destroy the insulating properties thereof. The tubular member may itself serve as an electric conductor, or it may be surrounded by an electric conductor.

Abstract: A circuit for connecting to the output of a constant-current power supply for limiting output voltage in the event of an interruption, such as open circuits, in a feed comprises a first resistor and a first thyristor in series across the output and a second resistor and a second thyristor in series across the output, a capacitor connecting the junction of the first resistor with the first thyristor to the junction of the second resistor with the second thyristor. Triggering of the first resistor connects the first resistor to the output so as to form a dummy load and triggering of the second thyristor turns off the first thyristor.

Abstract: A wire for making steel wool has, in cross-sectional profile, a straight top, a pair of sides extending down from said top, and a downwardly and outwardly concave bottom. The sides either taper regularly down from said top toward said bottom so as to impart to said wire a trapezoidal cross-section, or lower portions of otherwise parallel sides taper inwardly at an angle of approximately 20.degree. so that the wire is much narrower at the bottom than at the top. The corners between the sides and the bottom are rounded so as to reduce waste in the production of steel wool. Such a wire is received in a capstan of a steel-wool making machine having wire-holding grooves with central outwardly convex ridges receivable within the concavity in the bottom of the wire.

Abstract: A carrier frequency system is provided with a transmission band of up to approximately 200 MHz with a small number of partial bands of identical magnitude and kind. These partial bands are translated and cut connected through and vice versa in their entirety into a frequency spectrum within the transmission band of a 60 MHz carrier frequency system of quinary group construction. The partial bands which are cut connected through into the other system are suitable for working with the translators of the other system in the same way as with its own partial bands. The filters required for the system are simple and uncomplicated.

Abstract: The connector arrangement is moisture-proof and radiation-impervious. It includes a connector sleeve having a conical cavity which receives and secures that portion of the coaxial cable from which the outer protective sheath has been stripped. It furthermore includes a collar which tightly surrounds a section of the protective sheath of the cable. The connector sleeve has a shoulder setting off the collar from the conical cavity, and also has an outwardly projecting flange. An inset has an external thread at one end for connection to another component and is provided with an internal bore having a diameter equal to the outer diameter of the cable insulation or spacers. The inset furthermore has another external thread at the end thereof facing the connector sleeve. A connector nut engages the outwardly projecting flange and the external thread of the inset and, when tightened, causes the inset to be pulled into the connector sleeve.

Abstract: A transmission line carries power cables and twin wire communication lines. The coupling unit consists of an elongated, oil filled insulating body having metal caps closing off its opposite ends. The twin wires are brought to the low impedance terminals of an autotransformer which also has a pair of high impedance terminals and a center tap. Each of the high impedance terminals is coupled through a coupling capacitor to the high impedance terminals of a second autotransformer mounted within the second metal cap. The second autotransformer also has a center tap and also has a pair of low impedance terminals for connection to the communications equipment. The center tap of the first autotransformer is connected through a capacitor or a cathode drop arrester to the first metal cap. Overvoltage arresters are connected from the center tap to the low impedance and to the high impedance terminals of both autotransformers.