Abstract: A sealed cable joint box has a body closed by a lid, cable apertures between the body and the lid, a first flexible and deformable seal for sealing the cables in each aperture and a second flexible and deformable seal between the body and the lid, this second seal being rendered discontinuous by the apertures and formed of independent segments between the apertures. Each segment of the second seal has each of its terminal portions embedded in the first seal in the aperture at this level and has a greater hardness than the first seal.

Abstract: A connector having a frame with an upper arm and a lower arm cantilevered from a center section to form a channel adapted to receive a section of a structural steel member. The frame has a conductor receiving area to receive a conductor therein. The conductor receiving area is located so that when the upper arm and the lower arm are compressed to grip the section of the structural steel member received in the channel, the conductor located in the conductor receiving area is crimped to the frame.

Abstract: A fitting terminal for electrically connecting to a high-voltage resistor electric wire having a lead which is exposed by stripping an end portion of an insulation cover. The terminal fitting includes a main terminal which consists of an electric contact portion, a wire retaining portion and a conductor receiving plate disposed therebetween. The receiving plate is provided with a recess facing the wire retaining portion for receiving the exposed end of the conductor of the high-voltage resistor wire. The exposed end is adhered to the recessed portion of the receiving plate using a conductive adhesive substance.

Abstract: An improved cable splice of the type in which first and second ends of a casing taper conically toward the casing's longitudinal axis. First and second cable-receiving apertures are provided in the respective first and second ends of the casing. A first set of cable-gripping jaws is disposed within the first end of the casing; and, a second set of cable-gripping jaws is disposed within the second end of the casing. At least one spring is provided within the casing, between the jaws, to urge the first and second jaws toward the first and second apertures respectively. A first plug is positioned within the inner end of the first set of jaws to bias the first set of jaws against the spring by forcing the jaws radially outwardly. A second plug is positioned within the inner end of the second set of jaws to bias the second set of jaws against the spring by forcing the jaws radially outwardly. The plugs are free of connection to the jaws.

Abstract: A system for grounding telecommunications cable rack assemblies and the like. The system comprises the positioning of an electrical conductor element beneath each end of at least one of the U-shaped clamp elements of a clamping junction between adjacent cable rack sections. The conductor elements comprise means for piercing the non-electrically conductive painted surface of the adjacent cable rack sections and forming electrical continuity therebetween through the clamping junction when the U-shaped clamp elements thereof are tightened on the adjacent cable rack sections.

Abstract: An explosion-proof electrical conduit sealing fitting for threadedly engaging at least two threaded conduits and surrounding at least one conductor running through two threaded conduits includes a first element having a portion threadedly engaging at least one of at least two threaded conduits; a second element having a portion threadedly engaging at least one of the at least two threaded conduits, and connections for the first element and the second element. When properly connected and screwed into place, the sealing fitting of the present invention completely surrounds the at least one conductor and threadedly engages all of at least two threaded conduits.

Abstract: A current-carrying screw connection between two tubular conductors located in a high-voltage switching installation having a metal encapsulation and insulated with compressed gas comprises radially oriented screws and a tubular shield, the screw heads being disposed inside the wall of the shield. The shield extends in a longitudinal direction over the ends of the two conductors and covers the butt joint between them. The shield is connected to each conductor via screws which are disposed within a region having a maximum circumferential extent of 180.degree..

Abstract: An explosively operated electrical connector for mechanically gripping and electrically interconnecting a pair of electrical cables. More particularly, the connector includes a C-member with converging, inwardly facing channels, a complementary wedge member and an explosively driven ram positioned in a housing on the C-member for driving the wedge member into wedging engagement with cables positioned in the channels.

Abstract: A split coupling of clam-shell configuration applied laterally over abutted ends of confronting tube sections with bead-over-wire reinforcement engaged with opposed shoulders of separable body members, and having depressible ring and abutment seals molded into the separable body members hinged for abutment a diametrical axially disposed plane coincidental with the axis of the body members when closed over said confronting tube sections by link and latch means, all basic structural members operating in tension and shear connections multiplied for greater strength and for uniform load distribution, said ring seals being scarfed for circumferential continuity, and there being an electrical bond between the coupling and said confronting tube sections.

Abstract: The disclosed invention is an apparatus for connecting two current conducting tubes, which also conduct fluids such as for example, a coolant. The connection apparatus conducts current from one tube to the other through a sleeve, the said tubes having a machined external surface against which the sleeve is pressed. A hose receiving hydraulic pressure is disposed between the sleeve and an external casing for providing a removable pressure against the sleeve for clamping the pipes in the sleeve. The present invention may be used in conjunction with a holder assembly for electrodes in an electrothermal smelting furnace.

Abstract: An assembly for making a mechanical or electrical connection between a conductor and the like and another element. The assembly comprises a tubular housing having a tapered portion converging toward an open end of the housing, the housing containing a unitary, tubular, conductor gripping member. The conductor gripping member has an outer tapered surface converging toward one of its ends and toward the open end of the housing. At least one coil spring made of relatively large gauge spring material is held in compression within the housing and in a manner that will drive the conductor gripping member toward the open end of the housing with substantial force when the compression of the spring is released. The tapered end of the housing is then effective to collapse the gripping member on a conductor or cable inserted in the housing and into the member.

Abstract: A fixed cavity, integral bonded, flexible coupling for joining ferrule terminated tubing ends in an aircraft environment in which a clam shell coupling is spring loaded at its hinges so as to bias it toward an open configuration. The clam shell coupling latches in a closed configuration by means of a plurality of latch pawls engaging latch pins, with the latch pawls being spring-biased into engagement with the latch pins.

Abstract: Separate conductive foils, riveted in electrical connection to each end of the ground bus in a busway section, are wrapped over the flange of the busway section housing. Upon joining two busway sections end-to-end, the foils of adjacent ground bus ends are sandwiched between the lapped flanges of adjacent busway sections. The ground bus joint is perfected by bolts clamping the lapped flanges together.

Abstract: A connecting device for connecting an electric wire to a bus bar, with a groove between two walls which form together a U-shaped section, characterized in that, a connecting piece has two inwardly sloping connecting surfaces to be pressed towards the edges of the U-shaped section and a screw through a central hole formed in the connecting piece, which is intended to engage with its thread in the insides of the walls of the U-shaped section when the connecting piece has been placed over the groove. The connecting piece also has two guiding prongs, on opposite sides of the screw which are intended to be inserted into the longitudinal groove of the bus bar.

Abstract: A smooth junction is provided between aluminum conductor rails at the power collection surface by the provision of a wedge shaped insert the geometry of which corresponds to that of the gap between the rails. On expansion of the rails the insert is pushed partly out of the gap and on contraction is forced into the gap by a spring or springs thus always providing continuity on the power transfer surface.

Abstract: A joint for electrical conductors includes a connecting member having a longitudinal groove therein for receiving joining portions on a pair of electrical conductors. Biasing means carried by the conductors act against the groove bottom for biasing joining surfaces on the conductors into firm engagement with joining groove surfaces. The joint accommodates longitudinal thermal expansion and contraction of busbars or the like.

Abstract: A pipe or conduit coupling assembly having a pair of confronting, fluid-conveying members, a longitudinally split coupler removably circumferentially surrounding the fluid-conveying members to limit displacement of the fluid-conveying members away from each other, and at least one electrically conductive spring metal jumper mounted exteriorly on the coupler to complete an electrical circuit between the fluid-conveying members. A special retainer and toggle clamp assembly extends circumferentially around the split sections of the coupler and has a special toggle clamp which is incapable of being improperly latched to releasably secure the split sections of the coupler in place. A special safety lock is provided to prevent inadvertent release of the toggle clamp.

Abstract: A tubing coupling suitable for large diameter fuel lines in aircraft. A coupling comprising ferrules for the tubing ends with annular seals on each ferrule, a band positioned over the seals, a retainer with hinged sections positioned around the band and ferrules, and a bonding conductor in the retainer engaging both ferrules.