Abstract: A core grip for use in conjunction with a conduction cable having an outer conductor and core element in a hollow elongated compression valve wherein the grip is disposed on an end portion of the core of the cable after the outer conductor has been stripped away and the compression valve is disposed about the grip and is crimped into an engagement with the grip which in turn mechanically engages the core wherein the core grip is formed from two separate semi-circular cylindrical halves made of a deformable metal which when joined together from a solid cylindrical grip having an axial core therethrough coated with grit which is adapted to receive the core of the cable.

Abstract: A dead-end appliance for linear bodies including a pair of elongated legs, each of which is helically coiled along the length thereof for grippingly receiving a portion of a linear body. An integral connecting portion connects the legs at one end thereof and includes integral pin receiving eyes and a bight portion. The eyes have eye axes lying in a plane extending perpendicular to the legs, and the bight portion is positioned for attachment of a linear body tensioning device thereto extending therefrom on the same side of the plane as the legs.

Abstract: The tendency of modern high strength synthetic fibres, e.g., made of aromatic polyamides, when utilized for tension load-carrying purposes in association with an overhead cable arranged parallel thereto within a common protective covering to slip under load out of the clamping members connected thereto before the load reaches its ultimate tensile strength is overcome by impregnating a bundle of such fibres with an impregnating material capable of breaking down into particles when subjected to sufficient compressive stress which is broken down into such particles by the application of the clamping member, the resultant particles exerting within the clamped region a wedging action between the individual fibres and at the exterior of the bundle as a whole upon the application of the tension load to the bundle. Particularly suitable impregnating materials are natural resins, especially colophonium.

Abstract: A cable pulling eye assembly comprises a spike (16) having an auger thread (18), a coaxially mounted shell (36) and an eye (31) with a threaded opening (34), which is mounted on a threaded rear section of the spike. The eye is rotated by a power tool to advance the auger into a bundle of wires (11) of a sheathed cable (10). The shell is subsequently crimped to further force the wires into the flute defined by the auger thread. A pulling steel cable is attached to the eye to draw the cable between telephone poles or through an underground conduit.

Abstract: In an end cap for communications cables, and particularly one equipped with a pulling eye, an axial spigot provided with cable engaging enlargements is also formed so as to define longitudinally extending surface channels for the passage of gas, which channels are protected from entry of cable conductors either by being oriented at an angle to the lay of the conductors, or by the insertion of a small bore air carrying tube.

Abstract: A support for electric cables, in instances where the configuration of the distribution system is not fixed, comprises a pair of cable-clamping members whose outer surfaces form wedges guided by a pair of converging flanges. The inner surfaces of these members clamp the point or region of a cable that is to be held fixed in space. A pair of outer clamping members surround the above flanges. Coupling formations ensure that all parts of the structure always stay in their proper relative positions, allowing but a widening or a narrowing of the cable-receiving cavity. The flanges have projections or abutments which enter into lateral elongated recesses of the cable-clamping members and thus limit the possible minimum and maximum spacing of the latter, which depends upon the size of the electric cable that is to be supported.

Abstract: A device for attachment to fibre optic cable for pulling such cable through trunking systems or the like, includes a tubular body for receiving an end of the cable and adapted for crimping around the cable. A head portion of the device, in alignment with the tubular portion, includes apparatus for locking a central strength member of the cable into the device. In a preferred embodiment the locking apparatus consists of a plurality of set screws spaced throughout the length of the head portion and serving to crimp and secure the strength member to the pulling device.

Abstract: A submarine cable is terminated to a tail cable outside a repeater housing anchorage. A flexible shroud covers the joint and a cable stopper holds the main cable to a tear-shaped anchor member through which the tail cable passes.

Abstract: A cable assembly and construction method to enable a cable to be pulled lengthwise in a conduit or otherwise, wherein a perforate plate is placed among insulated wires in a bundle emanating from one end of the cable jacket or sheath. The wires are bonded to each other and to the plate by potting. An epoxy or resin may be used, if desired. Alternatively a paraffin potting step may be employed to provide a base for a resin, a paraffin block being potted between the jacket and the resin.

Abstract: Means for carrying a cable through a wall, for instance through the wall of the motor of a submerged pump, said means comprising a sealing rubber ring encircling the cable and which is tightened up with an annular sleeve to give a watertight seal between the motor wall and the cable. Between the sleeve and the wall has been mounted a tightening ring encircling the cable, this ring carrying members which bend towards the cable in connection with the tightening operation.

Abstract: A termination device utilizes a frusto-conical wedge positioned on the cable for forming a protuberance thereon at the area of termination. A first set of helical elements having a helical lay of one hand is disposed in a surrounding relationship with at least an axial portion of the cable with the cable and first set of helical elements being received through a longitudinal bore extending between the opposed wedge ends. A second set of helical elements having a helical lay of the opposite hand closely encircle the wedge outer surface at least between the opposed wedge ends and also encircle at least a portion of the first set of helical elements extending outwardly from the wedge bore at the smaller diameter wedge lead end. For conventional electrical conductor cable or the like, the first and second sets of elements are comprised of preformed helical rods having predetermined internal diameters and pitch lengths.

Abstract: A contraction termination device and method for electrical conductor cable or the like encased in a sheathed braided material. The device employs an elongated sleeve having opposed lead and terminal ends with an internal passageway communicating therebetween. The sleeve tapers outwardly from the lead end along a tapered area which merges into a roughened area which then merges into an intermediate area. These three areas are all coated for creating a friction surface along the sleeve. The internal cable conductors or strands are passed through the sleeve passageway from the lead end and the braided sheath is passed over the sleeve lead end to the intermediate area. Thereafter, the sheath is affixed to the sleeve at the intermediate area by tie wraps and the ends of the conductors or strands may be conveniently interconnected to attendant equipment at the sleeve terminal end.

Abstract: The attachment includes main and secondary members, both having cooperating surfaces inclined to the centerline of a cable segment to which they are attached. The main body member is lengthwise recessed to receive the cable segment. The attachment members, by reason of the cooperating surfaces, are adapted to be drawn into clamping engagement with the cable upon relative movement between the members.

Abstract: A pulling assembly for gas cables and a method for manufacturing such an assembly is herein disclosed. A hollow cylindrical shell is provided with a cylindrical opening at one axial end and a reduced diameter threaded axial opening at the other terminal end. A pulling eye is provided having a passageway formed generally coaxially within a shank portion thereof and extending to the body of the eye wherein a transversely disposed threaded opening is formed to communicate with the coaxial passageway. The shank is threaded for mating engagement within complementary threads formed in the second axial end of the shell. Stainless steel tubing, or the like, is soldered within the coaxial passageway of the pulling eye. The cable to which the assembly is to be connected is stripped and the shell is inserted over the conductors with the shell tubing inserted within the central interstice of the cable. The shell is crimped onto the conductors and the stripped portions of the cable repositioned over the shell.

Abstract: A connector is disclosed which includes an electrically conductive compression barrel and a deformable core grip which includes an inner sleeve and three longitudinally extending lobes projecting radially outwardly from the sleeve. The core grip fits over the projecting end of the reinforcing core member in a cable, and the end of the cable with the core grip thereon and a length of the cable with conductor strands thereon fit into the end of the compression barrel which is crimped against the core grip and against the conductor strands. Crimping produces a strong mechanical connection between the core grip and both the cable core contained therein and the surrounding compression barrel, and produces a good electrical connection of the compression barrel to the conductor strands on the cable.

Abstract: A pulling eye assembly is adapted for attachment to the end of a communication cable whereby linear pull can be applied to the cable end to draw the cable into place in the air on poles or underground through conduit. The outer portion or sleeve of the assembly may also be used for pressurizing air or gas filled cables to exclude moisture.

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.