Abstract: A high-insulated stud comprises a first columnar conductive terminal of a first height, a second columnar conductive terminal of a second height lower than the height of the first conductive terminal that is placed in a row with and at a distance from the first conductive terminal, an insulating pedestal, and a first groove open at the top and a second groove intersecting the first groove and shallower than the first groove at the top of the first conductive terminal and a third groove open at the top, which is parallel with the first groove and whose bottom face is almost the same height as the bottom face of the first groove, at the top of the second conductive terminal.

Abstract: A spacer apparatus (10) for spacing a high voltage lead (25) from other components in an electrical device includes a hub (11), a plurality of spokes (15-18) extending radially outwardly from the hub (11), and first and second spacer rim segments (19, 20) connected to the spokes (15-18). The hub (11) has a center (12) and first and second holes (13, 14) located on opposite sides of the center (12). The holes (13, 14) each have an open side for receiving a lead (25). The spacer rim segments (19, 20) are movable using a scissors-like action with the hub center (12) as a fulcrum to selectively enlarge one of the open sides to facilitate attachment to a high voltage lead (25). The spacer apparatus (10) is symmetrical so that an operator can attach the spacer to a lead (25) regardless of the direction in which the apparatus is initially grasped.

Abstract: A device for carrying high currents at a low inductance, in particular for a power converter or the like, is provided with two flat electrical conductors which are arranged roughly parallel to each other and are spaced apart from each other. The space between the two conductors contains no transition from one of the two conductors to a solid-state insulator, and from there to the other of the two conductors. As a result, no aging phenomena can arise in the device according to the invention owing to partial discharges.

Abstract: A cable management system is provided for use with rack mounted devices, such as servers. The cable management system for each device mounted in the rack includes a retainer, typically mounted to the rack, and fixed to the cable. The system also includes a tension device, such as a tension reel having an extensible member, connected to the cable intermediate the retainer and the device. As the device is moved towards the retainer, the tension member pulls the cable laterally and folds the cable at the rear of the device.

Abstract: A clip for connecting one or two insulators to a rail (preferably a T-bar member) of an electric heater including a main body, a means for securing an insulator to the main body, and at least one bendable metal clinching member extending from the main body, where the clip is securable to the rail by bending the clinching member around the rail. Preferably, the clinching member is one or two T-shaped end members disposed on transverse ends of the main body. Opposite end sections of the ridge of the T-shaped end member constitute clinching flaps which, in use, are clinched around a stem of a T-bar of an electric heater. The clip is not welded to the T-bar.

Abstract: A clip structure for extracting electric signals for measurement, which is improved in accuracy and reliability, and which can be handled easily. In the clip structure, an operating member is rotatably supported in a hollow base member with one end projecting from the base member, and urged in a specified direction. A cylindrical member is provided at the front end of the base member. Elastic wires are stored in the cylindrical member and grip portions are formed in the front portions of the elastic wires, while the rear portions are fixed to a lower portion of the operating member. The grip portions are configured to project from the front end of the cylindrical member when pushed in a direction opposite to an urging force and rotated. A contact pin member is disposed at a lower portion of the base member. One end of the contact pin member is engaged with the rear end of the cylindrical member while the other end is projected from the base member.

Abstract: A structure of a conductive bump in a wiring board having a wiring pattern on a surface of an insulating base, characterized in that a local portion of the insulating base is raised from the surface of the insulating base to form a projection and a surface of the projection is covered with a part of a lead forming the wiring pattern to form a conductive bump.

Abstract: Methods of manufacturing and assembling a composite insulator are provided. At least one metal end fitting is provided having a sleeve portion which defines a bore with a first diameter, d1. An insulator subassembly is then formed. The insulator subassembly includes a rod of electrically insulating plastic material and an insulator sheath covering at least a portion of the outer surface of the rod. An end portion of the sheath has a deformable circumferential ridge formed on the outer surface thereof. This circumferential ridge has a second diameter, d2, which is greater than the first diameter, d1. The insulator subassembly is then inserted into the bore of the metal end fitting with a spacer member interposed between the metal end fitting and at least the circumferential ridge. The spacer member serves to deform the ridge to define a temporary vent for allowing air within the bore to escape.

Abstract: A clamping holder for flexible lines, particularly current-carrying lines, has a line holder with at least one device for fixing a line and a device clamping the line in the device. The device and the line holder have at least one mutually aligned passage, respectively. A known type of elastic, longitudinally extendible tension device is pulled into the passages. The tension device has a neck-type cross-sectional contraction and connects the line holder with the device in a ventable manner.

Abstract: An annular guard (20) for mounting on a high voltage insulator extends laterally thereof for a sufficient distance so as to prevent small wildlife such as squirrels from forming a short circuit between the opposing ends of the insulator at high voltage and earth potential respectively. The guard (20) is formed in two planar parts (24, 26) that are pivoted together (28) so that they can be relatively rotated between an open condition for mounting onto a live insulator and a closed condition for being secured thereto. Overlapping regions of the two parts are secured together (30, 32, 34, 36, 38) in the closed condition.

Abstract: A suspension clamp for suspending and clamping an elongate flexible member, the clamp having: (i) a saddle in which the elongate flexible member may sit, ii) a mounting to support the saddle with respect to a fixture, (iii) a closure latch to restrain the elongate flexible member in the saddle, and (iv) a resilient member mounted to the closure latch and having a bottom face adapted to clamp an elongate flexible member positioned within the saddle when the closure latch is closed.

Abstract: The present invention relates to a pole head for supporting conductors on poles for medium- and high-voltage overhead power lines, having at least one tubular portion which has a structural function, is made of electrically insulating composite material, and is fixed to a supporting structure. Coupling flanges for supporting the electrical conductors are connected to the at least one tubular portion and are mutually spaced along the axis of the tubular portion.

Abstract: An electrical insulator for supporting an electrical conductor includes a load sustaining molded core, a mounting on the core, an dielectric sheath, and a metal cap. The molded core is formed of a dielectric polymer with opposite longitudinal ends and a profiled lateral outer surface between the ends. The dielectric outer sheath overlies the core outer surface and has a weathershed extending laterally outwardly relative to the core. A metal cap is secured to one end of the core by the metal cap having a portion directly molded to the core. The mounting is located on the end of the core opposite the metal cap.

Abstract: A device providing an insulating support for an electrical conductor includes a body having a through bore with an upper, cylindrical portion and a lower, threaded portion. A hook extends integrally from the upper end of the body over the upper end of the cylindrical bore. A piston in the cylindrical bore has an upper end for mating engagement with the hook to define a fully enclosed passageway surrounding the conductor upon movement of the piston from an initial position, wherein the conductor may be moved laterally to a position between the hook and the upper end of the piston, to a terminal position wherein the conductor is fully surrounded by surface portions of the hook and piston. A threaded insert is engaged in the threaded portion of the body axial bore. A passageway through the insert has a one-way valve for injection of silicone gel into the cylindrical portion of the body bore to move the piston from its initial to its terminal position.

Abstract: A cable retaining apparatus for retaining and routing lengths of cable on an assembly structure is provided. The cable retaining apparatus includes two or more adjacent retaining members extending from a surface of an assembly structure. The retaining members each have at least one retaining surface oriented such that each retaining surface faces the retaining surface of an adjacent retaining member forming a cable channel therebetween. The retaining members also include one or more protrusions extending from each of the oppositely facing retaining surfaces into the cable channel in a staggered or offset orientation. This configuration allows one or more cables to be routed within the cable channels and retained therein by the lateral retaining forces applied to the cable from the plurality of protrusions.

Abstract: An electrical conductor cable extends in a longitudinal direction. An insulator member has a bearing surface portion convexly curved in the longitudinal direction and concavely curved in a direction transverse to the longitudinal direction. A pad is located between the bearing surface portion of the insulator member and the conductor cable. The pad has a conductor engaging surface engaged by the conductor cable. The pad has a preformed surface in contact with the bearing surface portion of the insulator member. The preformed surface of the pad is concavely curved in the longitudinal direction and convexly curved in a direction transverse to the longitudinal direction and provides an area of contact between the preformed surface and the bearing surface portion of the insulator member.

Abstract: A computer includes a housing and a keyboard unit, the housing having a main circuit board with a socket connector provided thereon. The keyboard unit is detachably mounted on the housing and is provided with a ribbon cable extending into the housing and having a terminating end that is removably insertable into the socket connector. The ribbon cable is provided with a transverse restraining strip that is secured to the ribbon cable longitudinally inwardly of its terminating end and has a pair of outwardly projecting end portions. The housing is formed with engaging grooves for removably receiving these outwardly projecting end portions of the restraining strip.

Abstract: A cable clamp for clamping a motor cable includes a fixing member having a pair of bottom plates. The bottom plates are placed in parallel to each other to thereby define an opening. A pair of guide members are also placed in parallel to each other and bridge the bottom plates to further limit the opening. The motor cable is then received through the opening. A slide member slides along the pair of guide members to thereby clamp the cable. The bottom plates may optionally include a depression near the opening which defines a recess. A waterproof adhesive may be disposed within the recess to thereby form a watertight barrier.

Abstract: A small-sized highly accurate gas sensor, which is excellent in its reliability of electric connections between contacts and fixtures while being freed from any damage, includes a base member; a detecting unit mounted on the base member for detecting a gas concentration; electrodes mounted on the detecting unit; cylindrical contacts buried integrally in an end portion of the base member; and electric leads interposed between the cylindrical contacts and the electrodes. Contacting fixtures for external lead wires are fitted in and contact the cylindrical contacts so that they are connected to the cylindrical contacts.

Abstract: A wire retaining for connecting wires in low-voltage circuits of electrical apparatus has a continuous channel (5), formed on a shaped part, for receiving the wires. The channel is designed for the passage through it over its length of a wire placement tool protruding through its lateral wire insertion opening and moving in the longitudinal direction of the wire; legs (3) laterally defining the channel, and/or wire hold-back devices (7), are embodied as predominantly spring-elastically yielding to the tool passing through.

Abstract: An apparatus for securing a wire with a longitudinal axis includes a glass filled polyester base having a recess for housing a segment of the wire therein; and a glass filled polyester cover for at least partially covering the segment within the recess, the cover having a resilient finger which is generally transverse to the segment, the segment being generally deformed about the resilient finger within the recess in order that tension on the wire along the longitudinal axis flexes the resilient finger which, in turn, forces a portion of the segment against a side of the recess in order to secure the segment therein. The wires may have a polytetrafluoroethylene insulation.

Abstract: There is disclosed an electric fence for chasing away pigeons or the like undesired birds. The fence comprises a series of spaced posts made of electrically insulating material, each post having a flat top end cut across by a groove having a depth of predetermined size and formed with a tapped hole adjacent to the groove. An electric wire, having a positive section, extends successively through the grooves of the posts, this wire having a diameter greater than the predetermined sized above mentionned so as to projecting out of the grooves. Screws are provided which have threaded stems and flat heads, the stems being screwed to one of the tapped holes. The screws heads have a width which is sufficient to overlap the electric wire projecting out of the grooves in a manner such that the screws clamp the electric wire against the posts.

Abstract: The method of applying an adhesive backed mount to a surface comprises the steps of positioning a mount on an application tool, positioning the mount in its desired location on the desired surface and applying a force to the application tool sufficient to overcome a predetermined force requied to cycle the tool.The tool has means for holding the mount on the tool. The tool additionally has means for applying a predetermined force to the mount and means for indicating to the operator that the predetermined force has been applied. The tool also has means for transmitting indicia to the mount indicating that the predetermined force has been applied by the tool to the mount.

Abstract: A cable spacer of the type used in overhead power transmission systems includes a body provided with cable engaging hooks, each hook having a seat in the form of a cylindrical segment. A cable retainer is provided for each seat and consists of a cylindrical body having at least one semicylindrical groove and a handle projecting radially outwardly. The retainer is slidably receivable in the seat from either end thereof and rotatable between a first position in which the cable may be inserted into the groove and a second, cable retaining position in which the groove is within the confines of the seat.

Abstract: Ceramic elements which can be clamped together by means of a tension rod so as to form a cross-arm assembly for a utility pole. The elements are provided with recesses which receive electrical conductors, with clips being provided so as to retain the conductors within the recesses. The elements thus provide physical support for the conductors and also form the insulating medium for the conductors.

Abstract: A cable support for an electric power-line pole comprises a body of insulating material having a core delimited externally by a substantially rigid shell to which are attached individual cable support brackets. The core is covered with an insulating membrane with interposition of packing material.

Abstract: An insulator arrangement which may be employed, for example, on a capacitive protective fence comprises three principal elements:(1) an insulator, made of ceramic or plastic, having at least one ring-shaped recess arranged on its bottom to form a long path for leakage current;(2) a mounting bracket extending axially downward from the bottom of the insulator which has fastening means on its free end for securing an electric wire; and(3) a metal cup mounted over the insulator to protect it from the environment. A mounting element consisting of two arms forming a U-shaped configuration is arranged on the metal cup to facilitate mounting on a fence post.

Abstract: An electrical insulator having opposed jaws with at least one of the jaws being adjustable in relation to the other jaw for clamping an electrical conductor therebetween. The jaws are part of plastic pieces which are molded at elevated temperatures and which undergo thermal contraction when cooled subsequent to the molding process. Opposed grooves are provided in the confronting surfaces of the jaws. Liner members consisting of a material different from that of the jaws are received in the grooves. The liner members are sized for ready insertion into the grooves while the interior groove dimensions are expanded as a result of the elevated molding temperatures. The subsequent thermal contraction of the internal groove dimensions during cooling results in the liner members being firmly anchored within the grooves.

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: An insert of a material to be electrically and thermally insulating enters into and is joined to a socket-shaped metallic base which in turn is fastened to a structure through a hole in the structure. The base is undercut, and the hole in the structure is filled when the base is fastened to the structure. An embossed lip on the socket is deformed inwardly to attach to a shoulder on the insert when the insert is bottomed in the socket.

Abstract: This disclosure is directed to a spacer for aerial cables for supporting one of more electrical conductor cables above the ground. It includes a body member having at least one concave seat adapted to receive a conductor cable, at least one generally arcuate retaining means adapted to engage a surface of the conductor cable and toggle means adapted to cooperate with the retaining means to firmly hold the conductor cable in its seat. One end of the cable retaining means is pivotally supported on the body member. The toggle means is pivotally supported on the other end of the cable retaining means. The toggle is provided with second ratchet tooth means and also generally arcuate third ratchet tooth means. Ratchet tooth means are also provided on the body member outwardly of the concave seat.

Abstract: This disclosure is directed to a spacer for aerial cables for supporting one or more electrical conductor cables above the ground. It includes a body member having at least one concave seat adapted to receive a conductor cable and at least one generally arcuate cable retaining means adapted to engage a surface of the conductor cable and hold it in its seat. One end of the cable retaining means is pivotally supported on the body member. Generally arcuate ratchet tooth means are provided adjacent to the other end of the cable retaining means. Generally arcuate ratchet tooth means are also provided on the body member outwardly of the concave seat. The teeth of the retainer ratchet tooth means are engageable with the teeth of the body member ratchet tooth means when the retaining means is rotated about its pivotal support thereby to firmly hold the conductor cable in the concave seat.

Abstract: A cable-retaining device attached by hooking to a support mounted on a pole comprises a suspension body and a guiding member rotatably mounted within the body and associated with a suspension hook. A passageway formed in the guiding member is located in the line of extension of two outer passageways formed in the suspension body in a cable-displacement position and is angularly displaced with respect to the body passageways in a cable-retaining position.

Abstract: A stand-off insulator for supporting conductors or the like so that they will be maintained in spaced relation to a supporting structure which carries the insulator. The insulator is in the form of a one-piece body of electrically non-conductive material having an elongated portion provided with a pair of opposed free end regions at one of which the elongated portion has a structure for fixing to this one free end region an article such as a clamp, bracket, or the like, while the elongated portion has at its other free end region a structure for mounting the body on a support.