Abstract: An electrical contact pair includes a laminated pair of male forks and female forks that are stamped from sheet metal stock and are molded into a dielectric housing. The male fork tines have sloped outer surfaces sloping toward a centerline of the contact pair in a direction along the male fork tines away from a base of the male fork. The female fork tines have sloped inner surfaces sloping away from the centerline of the contact pair in a direction along the female fork tines away from a base of the female fork. The contacts may include split tails with parts from different laminates that bow outward and resiliently deform to engage walls of a hole into which the tail is inserted. Advantages include low insertion forces, a press-fit board attach from the split tail, multiple electrical paths for low resistance, and a low cost of manufacture.

Abstract: In the case of connecting a flexible conductive member to a single-core wire, the single-core wire and the flexible conductive member are connected more easily, without crushing the single-core wire. An electrical wire module includes: a first conductive portion that is a single-core wire; a second conductive portion that is tube-shaped and more flexible than the first conductive portion, one end portion of the second conductive portion is connected to an end portion of the first conductive portion in a state of covering the outer circumferential surface thereof; a connection portion that is electrically conductive, is connected to an other end portion of the second conductive portion, and includes a portion that is terminal-shaped and can be connected to a partner member; and an insulating covering portion that surrounds at least the first conductive portion and the second conductive portion.

Abstract: A terminal-equipped electrical wire includes: a covered electrical wire in which an outer periphery of a core wire including a plurality of element wires is covered by a cover portion; and a terminal portion that is provided to an end portion of the covered electrical wire and that is configured as a terminal by exposing the core wire from the cover portion and providing a connection hole to the core wire. At the terminal portion, the element wires of the core wire are divided into two divided sections, the tip of each of the divided sections is folded back toward a base portion in order to form the connection hole, a conductive member is arranged between the divided sections, and a resistance welder is used to configure the terminal.

Abstract: Embodiments disclosed herein include pre-terminated fiber optic connector sub-assemblies, and related fiber optic connectors, cables, and methods. In certain embodiments, an optical fiber stub is pre-installed in a ferrule bore of a ferrule of a fiber optic connector sub-assembly, to provide the pre-terminated fiber optic connector sub-assembly. The optical fiber stub can be pre-installed in the ferrule bore prior to termination of the fiber optic connector sub-assembly. Because the pre-terminated optical fiber stub disposed in the ferrule bore is not directly accessible through a ferrule body of the ferrule when a field optical fiber is disposed in the ferrule bore for fusion splicing, the ferrule has properties that allow thermal energy to be directed through the ferrule body into the ferrule bore. In this manner, the optical fiber stub pre-installed in the ferrule bore can be fusion spliced with the field optical fiber to terminate a fiber optic cable.

Abstract: A method of making a lifting grommet provides a connector body that is specially configured. The body has opposed end portions and a centrally positioned open area or gap. Each end portion of the body has a bore. A length of wire is provided having a pair of rope end portions. As part of the method, a bore and a centrally positioned opening or gap is engaged with a wire rope end portion. Once an end portion extends to the bore or gap, it is frayed, spread apart or unraveled. As part of the method, each portion of the wire rope is enveloped with a mass of adhesive filler material such as epoxy.

Abstract: A cable breakout kit has a cable portion, an inner wall portion and a furcation portion with at least one fiber port. The cable portion and the furcation portion are dimensioned to couple with one another, enclosing a furcation area. The inner wall portion is coupled to the furcation portion and a fiber bundle of the cable, enclosing a fiber area within the furcation area; the fiber area is coupled to the at least one fiber port. An assembly including a cable with a fiber and an electrical conductor utilizes a transition housing to pass the fiber and conductor to respective furcation tubes, isolated from one another.

Abstract: A method for straightening, constraining, cutting and terminating a multi-stranded, non-parallel cable. The method includes: (1) dividing the cable into smaller components which are in the size range suitable for the prior art termination technology; (2) creating a termination on the end of each of the smaller components; (3) providing a collector which reassembles the individual terminations back into a single unit; and (4) maintaining alignment between the terminations and the smaller components while the terminations and the collector are in a connected state.

Abstract: A method for producing a twisted wire (1) by twisting two wires (2) together. When that portion of the twisted wire (1) extending from one ends (3) of the two wires (2) to a first predetermined position (4) is defined as a one end-side twisted portion (5), and that portion of the twisted wire (1) extending from the first predetermined position (4) to a second predetermined position (6) is defined as an intermediate twisted portion (7), and that portion of the twisted wire (1) extending from the second predetermined position (6) to the other ends (8) of the two wires (2) is defined as an other end-side twisted portion (9), a twisting pitch of the one end-side twisted portion (5) and the other end-side twisted portion (9) is smaller than a twisting pitch of the intermediate twisted portion (7).

Abstract: An optical fiber connector includes a ferrule, an inserted optical fiber, an external optical fiber, and a pair of reinforcing members that pinches and reinforces a fusion-spliced portion of the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The reinforcing members include adhesion layer on the inner surface thereof which comes in contact with the other end portion of the inserted optical fiber and the front end portion of the external optical fiber. The adhesion layer is depressed at the position where the inserted optical fiber and the external optical fiber come in contact with each other so as to closely adhere to the outer circumferential surfaces of the optical fibers in the fusion-spliced portion.

Abstract: A fiber optic cable system includes a fiber optic main cable having a longitudinal central axis and an outer cable sheath. An outer optical fiber tube is located within the fiber optic main cable proximate the outer cable sheath and including a plurality of optical fibers extending therein and an inner optical fiber tube is located within the fiber optic main cable closer to the longitudinal central axis of the fiber optic main cable than the outer optical fiber tube and including an optical fiber extending therein. A first splice location in the fiber optic main cable is at a first longitudinal position along the fiber optic main cable. One of the plurality of optical fibers in the outer optical fiber tube is cut at the first splice location.

Abstract: A composite superconducting wire and a method of manufacturing the wire is disclosed. Nano-particle dispersion strengthened copper is co-drawn with Niobium rod to produce DSC-1Nb wire. n numbers of DSC-1Nb wires are then stacked in a hollow DSC tube and drawn to form a DSC-n.Nb hexagonal wire. In a separate preliminary process, Tin rod is co-deformed with Copper tube to form a Cu-1Sn wire. m DSC-n Nb wires and 1 Cu-1Sn wires are then wrapped by Niobium foil and placed into a Copper tube. This entire assembly is then drawn to a finished size. The drawn composite is then subjected to heat treatment with a final stage at 650-700° C. for about 100 hours or longer. The new wire has higher electric critical current and higher mechanical strength than the controlled conventional ones.

Abstract: A rope assembly, according to various embodiments, comprises: (1) a braided rope comprising a plurality of braided strands; and (2) a rope fastener that is adapted to: (A) be attached to the braided rope adjacent a first end of the braided rope; (B) allow a user to selectively form a braided rope loop of a first particular circumference by fitting the rope fastener through the plurality of braided strands at a first particular location on the braided rope; and (C) allow a user to selectively form a braided rope loop of a second particular circumference by fitting the rope fastener through the plurality of braided strands at a second particular location on the braided rope. In various embodiments, the rope fastener is shaped for selectively preventing the rope fastener from returning through the plurality of braided strands after the rope fastener has been fitted through the plurality of braided strands.

Abstract: A process for producing a potting transition which is more nearly planar and which is more repeatable from assembly to assembly. Devices for carrying out the process are also disclosed. A stranded cable comprising a containment jacket is stripped of its containment jacket for a short length to expose the end strands for termination (Obviously, in the case of a cable having no jacket, no stripping is required). The exposed strands are then placed in a barrier device to separate them into a region of exposed strands and a region of guarded strands. Potting compound is then applied to the exposed region. The barrier device prevents the potting compound from penetrating into the guarded region. The result is a distinct transition between a region of strands which have been wetted by the liquid potting compound (“wetted region”) and a region of strands which have not been wetted by the liquid potting compound (“unwetted region”).

Abstract: A jig for loosening electric wires of a wire harness passed through a grommet is disclosed. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of the wire harness. The rotating member may have a spiral cam groove, and the bearing may have an engagement protrusion to be engaged with the cam groove so that when the one clamping portion is inverted, the rotating member can move in its longitudinal direction. The one clamping portion may include a rachet mechanism.

Abstract: A wire rope and socket combination comprises a wire rope socket, a rope formed of strands of twisted wires extending into the wire rope socket, selected strands of the twisted wires being bent over 180 degrees within the wire rope socket to provide a selected breaking strength; and babbit securing the rope in the wire rope socket. A method of constructing a wire rope socket, the method comprising the steps of: bending selected strands of a rope formed of twisted wires over 180 degrees to form bent strands; inserting the rope and bended strands into a wire rope socket; and pouring molten babbitt into the wire rope socket to secure the rope in the wire rope socket.

Abstract: For the longitudinal application of at least one elongated retainer element onto a longitudinally extending bundle having a plurality of electrical and/or optical transmission elements, a retainer element is formed into a loop at successive discrete locations of the bundle and the respective loops are tightened to form a retaining force. Preferably, the loops are chained together by having the loop of the next following loop passing through the preceding loop.

Abstract: A PC strand is formed by twisting peripheral wires made of deformed PC steel wires around a core, and allowing rust inhibitive material of thermoplastic resin to permeate into voids defined among the core and peripheral wires by use of an extruder. Since at least one of the core and peripheral wires is made of a deformed PC steel wire having an uneven outer surface, the thermoplastic resin can smoothly permeate deep into the inside of the PC strand.

Abstract: A litz wire connector assembly and method is set forth. A length of litz wire includes a plurality of individually isolated wire strands. An end portion of the litz wire includes non-insulated end surfaces of the wire strands. A sleeve which has an opening smaller than an area of the litz wire is positioned around a first portion of the litz wire such that the first portion of the litz wire within the sleeve is compressed to an area smaller than the remaining portion of the litz wire. An end connection surface is formed by cutting the remaining portion of the litz wire to expose end surfaces of the first portion of litz wire; wherein the end surfaces of the litz wire are substantially even with the end surface of the sleeve. The end connection surface allows mounting in a compact area onto a conductive surface having a strong electrical and mechanical connection.

Abstract: A motion transmitting remote control assembly (10) includes a flexible remote control core element (12) and a conduit (14) which slideably supports the core element. The conduit (14) has a jacket (16) defining an outer surface and an inner bore. A liner (18) lines the inner bore and includes an end protruding from an end of the jacket. The conduit (14) also includes a plurality of lay wires (20) having ends protruding from an end of the jacket (16) together with the liner (18). The ends of the lay wires (20) are formed to have an arch-shaped protrusion (22,26) which protrudes radially from the end of the liner (18). Such a protrusion (22,26) forms a mechanical lock between the conduit (14) and an end fitting (24) which is molded over the end of the conduit, preventing axial movement between the end fitting and the conduit.

Abstract: A method and apparatus for interconnecting with a lanyard a handle and lever arm of the type used in rapid inflation applications includes apparatus for impaling a first end of a lanyard with multiple spikes to secure the first end to a handle and further includes apparatus for sandwiching the second end of the lanyard between a plug and a bore formed in the lever arm. The lanyard handle is made with a channel having spike-receiving cavities along its extent, and the spikes on a spike-carrying strip impale the first end of the lanyard when the strip is press fit into the channel. At the opposite end of the lanyard, the bore and plug are frusto-conical in configuration so that pulling on the lanyard exerts a wedging action between the plug and bore to tighten the grip on the second end of the lanyard.

Abstract: A rock anchor is formed from a tendon composed of a plurality of strands. The tendon has at least one bulbous portion wherein all the strands in the bulbous portion are spaced apart from one another substantially around the periphery of each bulbous portion. An apparatus for manufacturing the rock anchor includes a series of opposed plates disposed on opposite sides of the tendon and controlled by respective hydraulic rams to clamp the tendon between the opposing plates. The clamps are sequentially displaced longitudinally by a dedicated hydraulic ram to form the bulbous portion between adjacent clamps.

Abstract: A method of terminating wire ropes by swaging in the field with hand tools. At the factory, one end of termination (9) has been prepared with threads (13) and the opposing end has been drilled forming a hole the diameter of which is too small to fit a wire rope end (11) with a tapered locking plug (10) installed. At the factory the remaining metal is then swaged outward, forming the swaged out sleeve portion (12), to an inside diameter sufficient to allow insertion of wire rope end (11) with plug (10) installed. Out in the field, plug (10) is first inserted into wire rope end (11) over the center strand and under the outer strands. Assembled wire rope end (11) and plug (10) are now inserted into swaged out sleeve portion (12). Swaged out sleeve portion (12), with wire rope end (11) and plug (10) installed, is then swaged inward, with a hand tool, forming the inside walls into a taper that is coextensive with the plug's tapered portion (18).

Abstract: An improved end clamp and method for attachment to a light-weight, manipulatable readily-grasped composite line of relatively high strength for use by personnel involved in hazardous rescue or safety conditions. The clamp and its method of attachment may be used with a multi-layered composite rope comprised of several combined sheaths of plastic materials with or without a multi-strand central metallic core. The clamp is particularly useful with a static composite rope having very little stretch and which will withstand exposure to elevated temperatures, sharp objects, chemicals, sunlight or shock which do not produce failure in the rope or require its premature disposal. The clamp is relatively simple in construction and provides a pair of interlocking tapered metallic elements which may be quickly attached to the rope end to withstand an unusual amount of strain or loading equal to or greater than the actual breaking strength of the rope itself.

Abstract: A narrow elongated housing is provided constructed of an inner ribbed conduit which is overlaid with two layers of high strength rods. Each layer is contra-helically wrapped with opposing end portions compression secured in a termination chamber. The chamber is formed between a sleeve, which is attached to opposing ends of the conduit, and an outer termination enclosure. With the ends of each layer of rods in the chamber, the enclosure is either held stationary, or slid over the upper layers of rod ends. Concurrently, a wedge is either manually placed in the annular space between the layers and held stationary, or it is forced into the annular space between the layers. Any of the above combination of actions will force the rods against the sleeve and enclosure and frictionally secure them. The wedge may be a malleable metal so that it will cold flow about a portion of the rods. A flexible polymer covering is placed over the assembly to complete the housing.

Abstract: A modular endless track drive system for use on a track vehicle such as a bulldozer is made up of a number of polymeric drive modules interconnected with polymeric master links. Each drive module includes a plurality of drive members with lateral frictional drive faces for engagement with a drive wheel, each master link having similarly configured drive faces. The drive wheel is provided with drive surfaces shaped to match the shape of the lateral drive faces on the drive modules and master links and/or a sprocket for engaging with additional drive faces on the drive modules and master links. A drive module is made by molding a polymeric multiple drive member structure atop a plurality of base portions, encasing one or more connecting members therein with their ends exposed. The master links are made in a similar fashion, but with upper and lower base portion parts for fastening the drive module connector members therebetween to form an endless track.

Abstract: This invention relates to a rope clamp and method of connecting to such clamp an end portion of a composite rope. Such rope has a multi-strand metallic core surrounded by a plurality of inner and outer sheaths of fibrous plastic material, the rope being one which is capable of use by rescue workers, firemen, mountaineers and the like. It is also useful in military and marine applications. The end clamp utilizes a hollow threaded sleeve and first and second tapered wedging plugs for separate connections of the plastic sheaths and metallic core to the rope for permanent and durable end termination.

Abstract: Disclosed is a method of assembling a chromatography column including the steps of providing a cylindrical core element, winding an innermost layer of uniformly spaced fibers helically about the core element, winding a plurality of concentric annular layers of uniformly spaced fibers about the innermost layer so that the fibers of each layer are helically wound about the most inwardly adjacent layer in reverse hand orientation relative to the next inwardly adjacent layer, enveloping the outermost layer of fibers in a column housing, and coating the fibers with stationary phase material.

Abstract: An apparatus for forming a radially outwardly directed bulge in an axially extending stranded steel wire cable for use as an anchor in a concrete structural component includes a frame with a pair of side walls. A clamping device is mounted on one end of the frame for gripping the stranded cable. The clamping device has two displaceable clamping jaws connected to counter jaws by articulated levers for moving the clamping jaws into the closed or clamped position. The clamping jaws are closed by a piston-cylinder unit mounted in the frame. Spaced from the clamping device on the frame is a sliding carriage with a thrust member into which one end of the stranded cable is inserted. The sliding carriage is connected to the piston-cylinder unit.

Abstract: A spike and socket cable termination assembly includes an outer socket having a substantially conical bore disposed therethrough with the bore having a smaller first open end and a larger second open end. The socket is constructed of a first material. A cable has an end portion thereof received through the smaller first open end of the substantially conical bore. A spike having a substantially conical outer surface is received through the larger second open end of the conical bore and in a center portion of the cable end portion with strands of the cable distributed in a substantially conical shape between the spike and socket. The spike is tightly wedged in the socket so that strands of the cable are held in place between the spike and socket. The spike is constructed of a second material having a modulus of elasticity substantially greater than the modulus of elasticity of the first material from which the socket is constructed.

Abstract: A reinforcing device to achieve stable fastening points for the inner portion (2) of seismic cables, especially cables that are towed laterally displaced in parallel in relation to the towing vessel and provided with at least two layers of armoring (5,6) intended for absorbing stretch loads on said cable, comprises a fastening means on at least one of the end areas of the inner portion (2), and gripping surfaces for external equipment and shaped with at least two securing chambers (3,4). For assembling the outermost layers of armoring (5,6) of said cable are separated and inserted into one chamber each (3, 4), wherein they are secured to form an integrated connection with said casing (2).

Abstract: The multiple strands of a multi-strand round wire electric cable are stretched over a frame to form a grid of closely spaced parallel strands. The strands are simultaneously cut off so that the strand ends are coplanar and the grid is pressed on a strip of pressure sensitive tape to retain the strands in the grid pattern which is similar to the individual strands in a flat electrical cable. The grid is released from the frame and terminated as a flat electrical cable.

Abstract: A cable termination arrangement includes a tapered socket body and a mating plug covered with a sleeve of malleable material. Cable strands are inserted and spread out inside of the socket. The plug and sleeve are pushed into the socket for forcing the strands into the sleeve. When a tensile force is applied to the cable, slippage between the cable and the socket is zero.

Abstract: To form a radially outwardly extending bulge in a steel wire strand made up of a plurality of individual wires, the strand is compressed along an axial length so that the individual wires deform radially outwardly and in spaced relation to one another. Compressive force is applied to one end of the strand and the strand is anchored at an axially spaced location from the end. A tubular member with a cylindrically shaped inside surface forms a limiting boundary for the outward movement of the individual wires. The tubular member is located between the end of the strand and the location where it is anchored. The end of the strand and the tubular member are rotatably supported. Each individual wire extends along an angular path about the axis of the strand between the end of the strand and the anchor location.

Abstract: A mechanically connected socket for `on-the-job` connection with structural strand includes a sleeve and an internal wedge shaped member through which the center core of the strand is received and retained while one or more outer layers extend longitudinally about the wedge and a bulbous head which, when assembled, encapsulates the strand.

Abstract: Apparatus useful in repair of a termination of an outer cover of an armoured cable. The outer cover comprises a number of wires and the termination is effected by location of the wires between an inner body within the outer cover and an outer body outside the outer cover. The apparatus has a first block to surround the cable and grip the inner body. A second block surrounds the cable adjacent the first block. The second block abuts an end of the outer body. The two blocks can be forced apart to separate the inner and outer bodies and thus open the termination. A wire separator retains the wires of the outer cover separate after the forcing open of the termination. The apparatus is useful aboard ship whereas previously cables could only be reterminated in part.

Abstract: A method of providing a strong field splice for a wire rope sling, and the like, involving the steps of taking the preformed wire rope and unravelling a selected length of the end of the rope, forming two groups of strands, and reweaving them together in the form of the loop; and when the reweaving is completed, the two remaining ends are woven together to again form the original wire rope. This dead end is clamped to the live portion of the wire rope by means of a streamlined clamp.

Abstract: An anchor on a tendon twisted of a number of steel wires has at least one double-cone widening, the biggest diameter of which is at least three times bigger than the diameter of the unfanned tendon part. The method for producing the anchor comprises seizing the tendon on two spaced apart places and bulging it between these places to form a widening. On the frame of the device for carrying out the above method there are provided two means for seizing the tendon on two places spaced apart whereby one of the means is actuated to exert an axial load on the tendon.

Abstract: In a cable termination, preformed cable wires are unlaid so that they form an unstressed envelope with a bulge and a flare. The cable end is positioned in a sleeve having a tapered bore that is coextensive with the envelope. Resin that forms an incompressible plug inside the sleeve is forced into the bore by a fitting screwed onto the sleeve at the larger end of the bore.

Abstract: An expansion joint lock for transmitting forces between structural members that contract as they are cooled down to operating temperatures. A piston member mounted to one structural member is slidingly engaged with a chamber in a reception member which is mounted to a second structural member. The remaining space in the chamber is filled with a liquid which freezes at a temperature somewhat above the operating temperature of the structure, allowing forces to be transmitted between the structural members by the frozen liquid.

Abstract: A crimping tool for use with a stranded cable connector having co-aligned sleeve openings, including a first member with a crimping portion; a piercing portion extended from the first crimping portion; a second member with a crimping portion and a recess for receiving the piercing portion and means to move the first and second crimping portions towards one another. A loose fitting cable connector sleeve with an inserted cable portion is positioned on the second crimping portion and the piercing portion is moved through the sleeve openings, thereby displacing the cable strands toward the interior wall of the sleeve, and forming a through passage. Movement of the cooperating crimping portions continues until the crimping portions have formed flat surface areas along the entire length of the sleeve thereupon and further movement is limited by an adjustable stop.

Abstract: Fittings are provided for use in terminating parallel yarn ropes containing one or more electrical conductors, and methods are disclosed for securing the fittings to the ropes to afford separation of the conductors from the rope and connection to electrical apparatus. One fitting has a frusto-conical body portion providing a tapered peripheral surface with an axial bore and a bail extending beyond the base of the body. The rope yarns are inserted into the bore at the narrow end of the fitting and divided into two pairs of bundles with each pair being splayed outward diametrically of the bore and returned along the outside of the fitting for wrapping helically in opposite directions for a predetermined distance about the periphery of the rope. The ends of the bundles are secured to the rope, so that when tension is applied between the bail and the rope, the wrapped bundles grip the outside of the rope to mount the fitting securely to the rope.