Abstract: A fluid cooled conductor including a wire rope or braid having ferrules forged on both ends thereof, said ferrules having a channel formed in the periphery thereof to provide a channel for fluid passage between the wire rope or braid and a terminal crimped to the ferrule. The terminal has a fluid passage communicating with the passage in the ferrule. A rubber hose is clamped between terminals in a water tight fashion, thereby providing a continuous fluid passage beginning with the fluid passage in the terminal, continuing about the periphery of the wire rope or braid, and terminating in the fluid passage on a terminal connected to the other end of the wire rope or braid. A method of making the fluid cooled connector is disclosed which includes placing the ferrule about one or both ends of a wire rope or braid, squeezing the ferrule with sufficient pressure to forge it into the wire rope or braid, and pressing a fluid carrying channel in the ferrule after it is forged onto the end of the cable.

Abstract: A two way fluid flow check valve includes a plug movable reciprocally lengthwise of the valve against either of respective valve seats within a valve housing. A fixed partition which acts as a piston is located within a cylindrical cavity of the plug. The plug is slidable on a pair of hollow tubes centrally of the housing, the tubes supporting the fixed partition therebetween. The tubes provide respective fluid passages from either end of the housing into the plug cavity on the opposite side of the partition. Upon leakage in the pipe on either side of the valve, the plug will move in response to internal and external fluid pressures from the opposite side, towards the direction of lowered fluid pressure, and will seat against a mating valve seat at that end of the housing, thereby closing the valve.

Abstract: A plurality of individual electrical conductors are held together in a bundle to form a power supply cable, for example, for installation in an aircraft. For this purpose a conductor securing device has a disk divided into two half disk sections interconnected by a snap-on connection. Each half disk section has outer elements for holding individual conductors and a bow-shaped shell located centrally inwardly so that two shells of two interconnected half disk sections hold at least one further electrical conductor between the shells. Each shell extends with a shell extension laterally and axially out of its half disk section and the shell extension has as a shoulder for axially retaining a strapping belt.

Abstract: A fluid cooled conductor including a wire rope or braid having ferrules forged on both ends thereof, said ferrules having a channel formed in the periphery thereof to provide a channel for fluid passage between the wire rope or braid and a terminal crimped to the ferrule. The terminal has a fluid passage communicating with the passage in the ferrule. A rubber hose is clamped between terminals in a water tight fashion, thereby providing a continuous fluid passage beginning with the fluid passage in the terminal, continuing about the periphery of the wire rope or braid, and terminating in the fluid passage on a terminal connected to the other end of the wire rope or braid. A method of making the fluid cooled connector is disclosed which includes placing the ferrule about one or both ends of a wire rope or braid, squeezing the ferrule with sufficient pressure to forge it onto the wire rope or braid, and pressing a fluid carrying channel in the ferrule after it is forged onto the end of the cable.

Abstract: A corrona test set has at least a reactor and power separation filter placed in an oil-filled conductive tank of a conductive material such as sheet steel. The exciter optionally may also be placed in the same tank enclosure which is of much smaller size than the equivalent voltage rating rest set in air. High voltage taken from the circuit passes out of the tank through high voltage bushings. A preferred form of bushing is a quick coupling cable receiving device having an insulator extending into the tank and a frustoconical metallic extension extending away from the tank with a tubular internal wall connected to these respective parts at opposite ends to form a further oil-filled compartment separate from the tank.

Abstract: An electronic component includes a plurality of current path pairs which are arranged on the same circle. Currents flow through first current paths forming respective current path pairs in first directions, and currents flow through second current paths in second directions opposite to the first directions. The first current paths and the second current paths are arranged alternately. Therefore, magnetic fields generated by the currents in the first directions and magnetic fields generated by the currents in the second directions are canceled by each other, whereby residual inductance becomes small. In the case where the electronic component is a cable, the current paths are conductors buried in an insulation member. In the case where the electronic component is a capacitor, at least one of the current paths forming the pair is a capacitor unit.

Abstract: A transmission line using superconductors instead of conventional conductors substantially reduces ohmic losses compared to conventional conductors. The superconductors are cooled by refrigerant flowing through a hollow superconducting inner conductor. The refrigerant is transported to the inner conductor using a novel connector.

Abstract: Disclosed herein is a novel and heretofore never anounced anchoring apparatus for telephone wire comprising a thickish plate-like base body of small size having a T-shaped suspending rod member protruded upwardly and forwardly from the upper side of the base body, three bores perforating the body in a front and rear direction for guiding set screws, a bore perforating the base body in a front and rear direction for guiding a set bolt, while the rear side of the body has a laterally elongated groove of a circular arc shape in section and a dent surface of circular arc shape in section along the longitudinal axis of the body.

Abstract: A bus bar for power supply is comprised of a pipe-shaped outer conductor and at least one inner conductor inserted therein. The inner conductor is also formed in a pipe shape and serves as a coolant flow passage. Insulation is interposed between the outer conductor and the inner conductor to electrically isolate them from each other.

Abstract: A device for splicing together two lengths of fluid-cooled, electric cable of the type comprising an electrical conductor surrounding by a flexible conduit through which a cooling fluid, e.g., water, can flow for the purpose of conducting thermal energy away from the cable while the cable conducts high current. The splicing device comprises an electrically-conductive tubular member having a pair of spaced holes in the tube wall. The tubular member is adapted to be crimped at both ends upon the respective ends of the conductor portion of two lengths of such cable, and the outside diameter of such member is substantially equal to the inside diameter of the flexible conduit portion of the cable so that the respective ends of the conduit portion of such two lengths of cable can snugly slide over the tubular member from opposite ends. The holes are located in the tubular member to allow fluid to flow substantially uninterrupted from one cable length, through the tubular member, to the other cable length.

Abstract: A cryostatic device is divulged for radiation detectors, disposed at the end of a cooled finger. A case, transparent to the radiation to be detected, at least in the vicinity of the detector, forms about the finger and the detector a heat insulating enclosure. An electric circuit brings the detected signal(s) outside the enclosure and radially immobilizes the end of the finger with respect to said case, because its substrate is a disk fast both with said case and with the end of the finger.

Abstract: A connector assembly for transferring high-frequency current into or from a Litz-wire electrical cable having multiple conductor strands includes a transition connector component, a terminal connector component, and a coupling collar. The transition component has an annular groove which receives the splayed ends of the multiple conductor strands and makes electrical connection therewith by soldering of the conductor strand ends to the transition component at the groove. The transition component also has a central opening through it for providing flow communication with the internal coolant flow channel of the electrical cable. The terminal connector component has an orifice through it for establishing flow communication between the transition component opening and an external source of coolant. The terminal component also has a tab projecting from it for making an external electrical connection. The transition and terminal components are electrically connected together by fasteners.

Abstract: The invention concerns a lead-through transit for cables 3 or pipes of the kind having a frame 1 of the opening 2 is filled by a series of modular resilient lead-through blocks 4 and blank blocks 5 arranged in rows separated by stayplates 6 with a compression and packer assembly 7 clamping and holding the blocks 4,5 and cables 3 in sealed engagement. The lead-through blocks 4 comprise two complementary half-blocks 40 that provide, when assembled together around a cable, a passageway 41 for the cable. Each half-block 40 has a series of axially spaced semi-annular lands 42 separated by recesses 43. The lands 42 provide axially spaced sealing faces for engagement with the cable while the recesses 43 enable resilient deformation of the block to accommodate variations in cable size. To assist in such resilient conformation of the half-blocks 40, it is preferred that the half-block has recesses 44 formed on the outer faces that are aligned with the lands 42.

Abstract: A cryogenically coolable inductive coil including: a multicomponent conductor comprising a plurality of components, each component including a cable of conductive material having a longitudinal axis about which the cable is twisted, the cable being wrapped helically and being compacted, after wrapping, to minimize voids in the cable and to give the component a polygonal profile, the components being disposed parallel, and adjacent, to one another with mutually facing sides of adjacent components being in contact with one another; and an electrical insulating and support structure at least partially surrounding the conductor for supporting stresses induced in the conductor due to magnetic fields created by the flow of current through the conductor, the conductor and the structure being wound to form the coil.

Abstract: In a busbar arrangement for a switchgear assembly where the load buses pass through apertures in riser supply buses the load buses are supported by the supply buses by insulating grommet blocks occupying the space between the load buses and the inner edges of the apertures. The grommet blocks are held in place by sleeves on the load buses.

Abstract: A strain relief device is disclosed which is adapted to receive wires which extend into an aperture of a service box. The device comprises a structure formed of a cylindrical segment and a conical segment. The cylindrical segment is disposed at the base of the conical segment and each of the segments is hollow. At least one section line, and preferably two, is disposed through the side wall of the structure. The section line extends from the top of the conical segment to the bottom of the cylindrical segment, whereby the segments are split into two sections. An abutment is disposed on the structure which is arranged to urge against the perimeter of the aperture in the service box. The two sections are joined together with a collar which is disposed around the cylindrical segment and co-acts with the abutment to hold the device in the aperture.

Abstract: A wire locator and strain relief device comprises a pair of plastic strip members. Locking means hold the strip members together, the strip members together defining a plurality of parallel, coplanar channels, each for receiving separate, insulated wires, to firmly hold such wires in a single-plane,precisely positioned configuration. Thus, ends of the wires may be precisely located relative to each other for installation into an electronic circuit member such as a circuit board.

Abstract: A feedthrough for a conductor in a wall opening which may be subjected to fire comprises to elastomeric parts including a hard part fitted into a soft part and together defining a conductor passage. The soft part presses against the wall opening. The hard part which consists of an elastomeric material contains a large amount of fire-retardant additive. The hard part also may have spaces receiving a fire-retardant substance which communicates by ducts along the joint surfaces of the two parts with the conductor passage.

Abstract: A cable support with tines has a first tined member including open chambers between its tines. Each chamber receives one cable. To hold the individual cables tightly independently of their dimensional deviations, a second tined part with an identical tine distribution is associated with the first tined part. The tines of the first tined part are positioned between the tines of the second tined part. A detachable catch connection provides two-way connection of the two tined parts.

Abstract: A lead wire retainer comprises a pair of half rings, retaining means for holding a given lead wire in place, and elastic supporting means for elastically supporting the retaining means. The lead wire retainer is constructed so that the pair of retaining means firmly hold the lead wire when the pair of half rings are joined with the engaging means to complete a full ring.

Abstract: A bipartite cable fastener in which abutting faces of the respective parts are provided with complementary camming surfaces extending in orthogonal directions to center the body parts both axially and transversely during movement of the faces together. A laterally extending, mounting flange and detent shoulder are provided on each part in axially spaced relation for securing the fastener in a panel aperture, a socket for a release tool extending axially from one face to a location adjacent the shoulder and a stress relieving cavity being formed in the opposite face to extend axially between the socket and a cable.

Abstract: An insulator for an electrical heating element includes an inner section and an outer section removably disposed thereabout. The electrical heating element is removably and loosely received within at least one of the sections. Several of these insulators can be used to make a new and improved electrical heating element assembly.

Abstract: An insulating support device for supporting at least one conductor having a hole therein, including at least two hollow tubular insulating support members each including a partition having a circular hole concentric with the tubular support member, wherein the support members are disposed on either side of the conductor with the partition holes thereof coaxial with the conductor hole. An elongated insulating tube passes through the partition holes of the support members and the conductor hole and a support rod is passed through the insulating tube such that the pair of support members are in a free relationship with the support rod. Each hollow tubular insulating support member includes opposed half sections, each having a semi-annular shaped cross section including a semi-annular shaped partition located therein, wherein the opposed half sections are joined at their respective longitudinal edge surfaces to form an essentially hollow cylinder.

Abstract: An injectable grommet assembly for passing a bundle of insulated electric wires through a bulkhead comprises a pair of assembled shells having complementary grommet and flange segments. The grommet segments form an annular seal chamber which surrounds the bundle of insulated electric wires. A wire clip disposed in this chamber spreads out the bundle of insulated wires so that sealant injected into the chamber also fills spaces between the insulated electric wires. The assembly also includes a gasket for sealing against the face of the bulkhead.

Abstract: An insulation spacer for supporting a high voltage conductor within a flexible housing which is filled with electronegative gas has a central insulation hub and a concentric outer rim which are joined by a thin web. A plurality of tapered ribs extend from the outer rim to reinforce the outer rim against high loading forces and extend for approximately two-thirds of the radial thickness of the web and merge with the web. Ribs are placed at the latch and keeper areas of the halves of the insulator which are snapped together to form a single disk.

Abstract: A mounting structure is provided for mounting one or more live rails in a bank of such rails, the mounting structure providing simple means for including additional rails in the bank. The structure comprises a plurality of identical mounting halves, two of which cooperate to mount a single rail. When mounting a rail, the two cooperating halves present cooperating exposed surfaces for the joining of additional mounting halves and rails on each side thereof. Each mounting half includes identical cooperating recesses and projections which when joined together hold a rail in a mounted position. Each half also includes a gripping claw for grasping a single bracing panel or plank for holding an entire bank of mounted rails together.

Abstract: This electric bus structure comprises a bus bar having a coating of insulating material, an insulator for supporting the bus bar, and a bracket of insulating material having a U-shaped cross-section mounted on the insulator and having a pair of spaced-apart arms between which the bus bar is positioned. The bus bar is clamped to the bracket by clamping means comprising a clamping member of insulating material extending between the arms. The bracket and the clamping member each have rib structure projecting toward the bus bar and providing the sole surfaces through which contact is made between said coating and the bracket and clamping member when the bus bar is clamped to the bracket.

Abstract: This disclosure is directed to an insulator for clamping and holding an electrical conductor above the ground for aerial power distribution and transmission. The insulator includes a body member, first jaw means integral with one end of the body member, slide means, second and third jaw means integral with the slide means and means for mounting the slide means in the end of the body member for longitudinal movement substantially normal to the first jaw means. It also includes bolt means for causing movement of the third jaw means towards a concave neck portion of the body member for gripping a conductor between the third jaw means and the body member.This disclosure is also directed to a method of stringing an electrical conductor on a plurality of insulators which are supported above the ground on a series of poles.

Abstract: Two separate but identically shaped sections cooperate to form an electrical cord gripping device when they are brought together. The sections are insertable into recesses in cooperating halves of an electrical housing, by wedging or snapping them into place, and, when the housing is closed, the sections form a restricted opening and provide a clamp around an electrical cord passing through the opening and into the housing. The sections are readily removable from the housing, so that a single housing can be used with electrical cords of different sizes. Further, each section contains a diagonal rib, and, when the sections are brought together, their ribs criss-cross one another to grip the cord from opposite sides. The sections are also shaped to provide abutting surfaces which overlap each other to cam the sheathing of the electrical cord into the opening provided by the sections, and prevent crimping of the sheathing.

Abstract: A pipe clamp for use on pipe, cable or the like consists of a U-shaped base part forming an opening therethrough and a U-shaped fastening clip insertable into the opening through the base part. Toothed strips are provided on the interior surfaces of the base part and on the exterior surfaces of the clip for locking the two parts together. The base part has a closed bottom surface and an open top surface and two pair of opposite sides extending between the bottom and top surfaces. The fastening clip is inserted into the base part through the open top surface. A U-shaped opening is provided in each of one pair of opposite sides and the U-shaped opening narrows toward the top surface. The toothed strips are located in the other pair of opposite sides.

Abstract: Discharge electrodes in electrostatic precipitators are protected from erosion caused by power arcs in the area along their length which is closest to the ground electrode plates by a shroud of high temperature insulating plastic such as Teflon. The shroud is formed in two longitudinally slidable interlocking sections which completely surround and insulate the electrode wire but can be assembled to the wire without disturbing its ends.

Abstract: A clamping holder for busbars includes a base member having at least one projection, opening and clamping surface all located and shaped for reversible positioning of a pair of the base members with the projection on each received in the opening in the other, and with the clamping surfaces in spaced-apart facing relationship to define a part receiving aperture in which a busbar or other part is clamped and held.