Abstract: Splices between conductors in of an aerial telephone cable are covered by a closure located within a terminal. The closure has a large central section connected via tapered joints to two end sections. A settable liquid encapsulant is received in the central section. The closure has two halves joined by a flexible hinge that runs lengthwise along a first longitudinal edge. Two rigid tabs of nonuniform thickness running lengthwise along a second longitudinal edge are secured by snaps through apertures in the tabs. The snaps have tapered sections that clamp the varying thickness rigid tabs along their lengths to prevent leakage of liquid encapsulant. The end sections have open cell foam strips fitting snugly between the cable and the end section walls which are fixed with the liquid encapsulant. The encapsulant sets within the open cell foam to form a barrier to passage of contaminants into the central section.

Abstract: An insulating spacer for use in a gas-insulated electric apparatus for supporting a high-tension electric conductor inserted through a metallic pipe enclosing an insulating gas, in which the insulating spacer is provided with a plurality of fins on its creeping surface, and in which fin intervals between the metallic pipe and one of the fins adjacent to the metallic pipe, between adjacent ones of the fins, and between the high-tension electric conductor and one of the fins adjacent to the high-tension electric conductor are formed in a manner so that the fin interval formed at a position where a creeping component electric field is high is made narrower than the fin interval formed at a position where a creeping component electric field is lower than that in the first-mentioned position.

Abstract: Passive strain relief apparatus provides relief of strain on cable connections to electrical components within an electrical device such as a point of sale terminal, which strain is caused by tension on cables extending from said device. The strain relief apparatus includes a flexible strain relief element which is located within said device and is positioned adjacent to an opening in said device through which the cables extend. The cables are pinched by recesses in the strain relief element in which they are positioned. Tension on the cables causes said strain relief element to flex, thereby relieving the tension.

Abstract: A thin, relatively flat fiber optic cable assembly for laying under carpet. The cable assembly includes at least one resilient buffer tube and at least one optical conductor disposed inside the tube and being movable therein. The cable assembly includes a strength member having limited elasticity and a plastic jacket formed about the tube and the strength member with the jacket having a flat top surface and a flat bottom surface disposed parallel to the top surface. The tube and the strength member are positioned in the jacket midway between the top and bottom surfaces with the tube and the strength member being spaced and with their respective axes positioned in a plane which is generally parallel to the top and bottom surfaces so that a bend can be formed in the cable by removing a section of the jacket to expose the strength member and the buffer tube. A method of forming and defining the turn using the fiber optic cable assembly is also disclosed.

Abstract: Around an insulating central core (1) is arranged a first conductive component planned to put to earth a lightning installation. This first conductive component is composed of metallic wires (2) spreading parallel to the axis (3) of the whole. An annular coating made of insulating material (4) is arranged around the metallic wires (2) and a second conductive component, constituted by metallic wires (5), is arranged around this intermediate insulating coating (4). Metallic wires of this second component also spread parallel to the axis (3) of the whole and they are joined so as to form a metallic shielding. An outside protecting coating (6), made of insulating material, wraps the set of wires (5) of the second conductive component. This arrangement of metallic wires (2, 5) reduces at least their ohmic resistance and their inductance, which improves the performances of the whole for suppressing of side-flashings.

Abstract: A ceramic-metal lead assembly, of the type suitable for use in nerve or heart pacemakers, has a disk of high-purity ceramic with at least one lead extending therethrough, the disk being soldered vacuum-tight to a flange ring via a solder gap. The flange ring consists of a metal which is resistant to body electrolytes, and the coefficients of thermal expansion of the joined materials are matched to each other, but are not identical. For avoiding cracks in the ceramic disk in the region of the solder connection, the solder gap has a width such that the diffusion path of the metal of the flange ring into the solder connection cannot exceed a selected distance in the solder bridge which forms at the soldering temperature. A solder zone which is free of the metal of the flange ring, and thus has a dutility which is not degraded by the flange ring metal, is formed around the ceramic disk.

Abstract: A method and apparatus for isolating electric power lines includes an insulator assembly to which is pivotally connected two line clamps. After the clamps clamp to the wire, the wire is cut so that the insulator isolates the line. In one form the clamping surfaces are curved in the longitudinal direction to make up for the loss of line length due to the elongation of the assembly under line tension. Cut-out assemblies for fuse and disconnect purposes are readily applied to the assembly by a lineman standing on the ground below.

Abstract: The disclosed anticorrosive insulator has an insulator body with a shed radially extending from a central core thereof and a metal cap cemented to the core of the insulator body so as to cover the core. A gap of 2-10 mm is provided between the lower end of the metal cap and the upper surface of the shed. A recess may be formed on the lower end of the cementing agent layer between the metal cap and the core of the insulator body, which recess extends away from the upper surface of the shed.

Abstract: Layers (12, 14) of a multilayer flexible cable (10) are directed about a bend (22), so that the layers are configured into inner (12) and outer (14) layers. Differently configured spacers (20, 72, 74, 76) are placed between the respective layers at the bend for guiding the outer layer in a path (24) which follows the bend and for guiding the inner layer or layers in a path (26) or paths which is or are generally reversely directed from that of the outer layer.

Abstract: A flat wire harness attaching unit comprises an attaching plate with a clip vertically projecting therefrom to be insertedly fixed into a hole in an automobile, a base plate with a catch member also vertically projecting therefrom to be engaged with the clip, and a laminated sheet capable of being compositely fixed to an insulating cover of a harness to be clamped between the attaching plate and the base plate. The unit is characterized in that support shoulders provided in a catch hole of the clip are formed in bridge-like shape, having a strength with the degree of which in the case that the catch member is forcibly pulled down, a bifurcated claw provided on the catch member is not damaged although the support shoulders are destroyed, so that the harness can be relocated and reused.

Abstract: An aerial terminal has an increased density of connections and can be mounted alternatively on a pole or a cable. It has a housing with parallel side walls and end walls and a central wall extending across between the side walls, forming back and front chambers. A plurality of apertures extend in rows in the central wall and terminals are positioned in the apertures. The terminals are arranged in pairs, the front ends being in the front chamber and the back ends in the back chamber. Protector modules can be provided as part of a terminal for each pair. An openable cover and support brackets are also provided.

Abstract: Optical fiber-containing insulators each comprises an insulator body having a through hole provided in its central portion and extending along an axial direction thereof, an optical fiber core wire passing through the through hole, an insulating material filled between an inner peripheral surface of the through hole and the optical fiber core wire, and arrangements for preventing the filled insulating material from axially protruding out of the insulator body even at high temperature or spacers for holding the optical fiber core wire at the central portion of the through hole of the insulator body.

Abstract: A clasp for fixing an electrical wire to an insulator having a saddle portion and a method of doing so. The clasp includes a resilient but bendable clamp, having attached to its inner surface a wire gripper element, made of a semi-conductor elastomeric material. The method of fixation involves the use of a power device associated with mechanical parts adapted to carry out a series of simple steps, including the steps of lifting the electrical wire into the gripper, and applying pressure to close the gripper around the wire while simultaneously securing the clamp to the saddle portion of the insulator.

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 design for dampening cable oscillations in aerial transmission lines includes an auxiliary cable (4), each end of which is connected to a respective clamp (6) by means of rubber elastic molded elements, which clamps (6), in turn, are to be connected with the conductor cable (1).

Abstract: A cable holder for use in supporting a single cable within a conduit is formed of a strong, lightweight, arc-shaped element having a substantially planar front surface, a rear surface broken by a cavity extending substantially the thickness of the arc-shaped element, an arcuate concave upper surface and an arcuate convex bottom surface. Both arcuate surfaces constitute approximately 120 degree arcs of circles. A stud is provided on the planar front surface. A rib positioned within the cavity provides support for the front surface at the point where the stud is located.

Abstract: A two-piece extruded aluminum alloy housing is shaped to provide support and ground conduction facility to power busway conductors contained therein. The two-piece housing is attached together with snap-fit connectors along its top and bottom surfaces. The housing is attached to the busway power conductors by means of insulated bolts. The bolts may be hollow so that air can flow through the bolts to aid in cooling the conductors within the housing by convection.

Abstract: A suspension insulator having a porcelain insulating member with a head portion and a shed, a metal cap cemented to the top of the head portion, and a metal pin cemented to the lower end of the head portion at a pin hole formed in the head portion. The pin hole has a closed top and a downward opening, and its inside surface includes a cylindrical surface portion around the opening, a curved top surface and a round corner surface forming a smooth boundary between the cylindrical surface portion and the curved top surface. The cemented part of the inside surface of the hole has sands rigidly deposited thereon over a range from its lower end to a level within .+-.3 mm of the junction between the cylindrical surface portion and the round corner surface. The cylindrical surface portion has a radius equal to D and the round corner surface has a radius of curvature equal to Y, such that a ratio of Y/D is in the range of 0.3-0.45.

Abstract: A kit, which is particularly intended for the fireproof laying of cables and ducts, has endwise connectable, self-supporting components made from thermally insulating material and substantially elongated metal reinforcements. The self-supporting components are duct sections (4 to 12), which in each case comprise a trough section (4' to 12') made from thermally insulating material and externally reinforced by longitudinally continuous sheet metal parts (16) and which has a substantially U-shaped cross-section, and a cover (4" to 12") also made from a thermally insulating material. The trough sections (4' to 12') being in each case equipped for the cover-less laying of the duct (1), are connectable with adjacent trough sections (4' to 12'); and the associated covers (4" to 12") are detachably fixable.

Abstract: To increase strength of a branch wire protector including a T-shaped semicylindrical member with a trunk portion and a branch portion; a trunk semicylindrical member with a semicylindrical base portion; a branch semicylindrical member; and locking member for locking the trunk and branch semicylindrical members to the T-shaped semicylindrical member, a clinch projection member is formed at an inner end surface of the branch semicylindrical member and a mated clinch hole is formed in the semicylindrical base portion of the trunk semicylindrical member.