Abstract: The structural element (1) for transferring mechanical forces between subassemblies at different electric potentials has an electrically insulating body which is provided with a mount (4) at each of it ends. The electrically insulating body at least partially contains LCP material. The mounts (4) are connected non-positively and positively to the electrically insulating body. Thanks to the use of LCP material, the structural element (1) can be made with particularly low mass, at low cost and with high mechanical strength.

Abstract: An insulator in the form of suspension insulator or pin type insulator has an elongated load sustaining body with a plurality of weathersheds extending radially relative to the longitudinal axis of the body on the outer surface of the body. The body and weathersheds are unitarily formed as one piece of rigid dielectric plastic polymer which are molded together. Clevis and eye coupling means are provided on the ends of the body to facilitate connection to support structures and high voltage lines.

Abstract: A roller-support rung arrangement for a cable bed and a cable laying method utilizing the arrangement are disclosed. The cable bed has roller rungs and support rungs on which support blocks are to be mounted. Generally, the roller rungs are mounted on the side rails at a higher level than the support rungs so that a cable drawn onto the cable bed initially contacts only the roller rungs for easy drawing of the cable. Generally, the support blocks are provided on the support rungs after the cable is initially laid on the cable bed such that the support blocks can substantially support the cable weight.

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 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 apparatus for electrically insulating and supporting a power supply wire relative to a substantially planar boundary, is disclosed. A translucent insulator is formed from a supercooled, nonporous igneous magma, such as glass, and includes a head and a shank extending from the head, the shank extendable through an opening in the boundary. The head and the shank form an annular passageway for receiving disposition of the wire. A shoulder surface limits the extension of the shank through the boundary opening and a retaining member, such as a nut, engages corresponding features of the shank to secure the insulator relative to the boundary. A seal can be additionally provided to engage the head and the wire to further seal the insulator.

Abstract: Improved metallic utility pole accessories used to either support objects on a utility pole or to support and stabilize the pole are provided. In general, the utility pole accessories include a polymeric chemically bonded coating that protects the underlying metal surface from corrosion. The coating also is substantially dielectric for preventing the accessories from interfering with the transmission of electricity through lines supported on the poles. The polymeric coating can be made from polymeric materials having functional monomers grafted thereto for chemically bonding with metal surfaces. Specific accessories within the scope of the present invention include crossbars, anchoring pins, transformer boxes, and guidewire supports. Also included is an improved insulator support post having a threaded portion made from a structural plastic material bonded to the polymeric coating.

Abstract: A data processing system includes a backplane and a plurality of logic boards connected to the backplane by a plurality of connectors. A set of common points is electrically coupled to the connectors by individual conductive traces between each common point and the corresponding pins of the connectors. The inductance of longer traces is reduced by merging traces near a central portion of the backplane to form a conductive region that extends to at least one connector on either side of the common points, thereby electrically shortening the longer traces. The inductance is further reduced by widening the longer traces. Longer traces are wider than shorter traces to reduce the differences in the LC products associated with each trace and, therefore, the differences in delay among the traces.

Abstract: An insulating support is provided for vacuum switch tubes with actuator units to be used in switchgears, in particular in gas-filled units. The insulating support has a flatbed-type extruded plastic piece with a profile fitting around the periphery of the actuator unit of the vacuum switch tubes, with the ends of the insulating support being provided with attachment arms extending in opposite directions and containing screw beds arranged symmetrically in relation to the longitudinal axis. Such insulating supports are used for accommodating and securing vacuum switch tubes equipped with actuator units for switchgears.

Abstract: A clip rigidly joins two parts, one part abutting the other. A first part has a hole spaced from the surface of the second part. The clip has two spaced plates connected by a spine. One plate has a hooked or notched tongue which engages the hole. The other plate seats on the second part and both plates have edges abutting the first part. Apertures in the plates accept a screw, rivet or other fastener which holds the clip to the second part and pulls the two parts together.

Abstract: An insulator conveys cooling fluid for or connects an optical fiber cable to an outdoor high voltage electrical system. The insulator includes an elongated pipe of non-conductive material having an internal passageway through it for the cooling fluid or optical fiber cable. An elongated weathershed housing surrounds and covers the outer surface of the pipe. Couplers, located at the opposite ends of the pipe connect conduits for conveying cooling fluid into and out of the fluid passageway or passing the cable. The insulator can be connected between an electrical device and a heat exchanger through connectors such that cooling medium can pass from the heat exchanger at ground potential up through the insulator which also supports the device and into the device for cooling the device.

Abstract: A metal fitting for a composite electrical insulator (1) including a plastic rod (2), e.g., an FRP rod. The metal fitting (4) includes a radially inwardly deformable sleeve portion having a bore (5) into which an end portion of the rod (1) can be inserted for fixedly securing the metal fitting (4) to the rod (1). The bore (5) in the metal fitting (4) has an inner surface which is formed with fine protrusions (7). These protrusions (7) provide a satisfactory resistivity to the tensile force applied to the insulator (1), to thereby effectively prevent withdrawal of the rod (2) from the metal fitting (4) when it is in use.

Abstract: An end fitting with stress distribution for supporting an end of a device, such as an insulator, placed tension. The end fitting has a mounting hole for receiving a cylindrical mounting pin therethrough. The mounting hole has a pair of contacting points spaced laterally relative to the vector line of force to redirect the tensile load applied to the end fitting by a mounting pin located in the mounting hole. The end fitting is especially useful in insulators subjected to tensile loads.

Abstract: A wireholder includes a main body portion, an attaching portion, and a tool receiving portion. The main body portion is arranged to receive a wire to be secured to a structure. The attaching portion is affixed to the main body portion and has a configuration to facilitate the attachment of the main body portion to the structure. The tool receiving portion is arranged to receive an installing tool. The main body portion has a strength so that torque can be transferred from a power tool to the attaching portion through the installing tool and the main body portion. The installing tool is arranged to break if excessive torque is applied to the wireholder by the installing tool.

Abstract: An electromagnetic wave shielding building material is disclosed, the building material comprising an electrically conductive concrete which has electromagnetic wave shielding properties and comprises a hydraulic inorganic material and carbon fibers of 0.6-3% by weight. It is possible to easily produce the building material having good electromagnetic wave shielding functions at low cost.

Abstract: An electric wire insulators for connection with a T-shaped corner fence post is formed by a generally U-shaped rigid mounting member having parallel legs transversely spanning a T-shaped post. A pair of U-shaped bracket members each journalling a dielectric spool are provided with a threaded rod rigidly connected with the bight portion of the respective U-shaped bracket and threadedly entering the respective mounting member leg for impinging the mounting member on the T-shaped post. One of the U-shaped brackets may be angularly rotated about the axis of its threaded rod for disposing the axis of one dielectric spool normal to the axis of the other dielectric spool.

Abstract: A durable polymeric bearing is provided for a rotatable support insulator. The bearing is of sufficient conductivity to permit the flow of leakage current and capacitive charging current through the bearing. Thus, tracking across and/or deterioration of the bearing is avoided since insufficient voltage is developed across the bearing to cause any deleterious effects.

Abstract: A mother board for a computer provided with a plurality of keyhole shaped fitting holes with protective elements extending around and downwardly from the peripheral edges of the large elliptical portions for preventing the annular slots of posts used in securing a PC board to the mother board from seizing the edges of the large elliptical portions during removal of the PC board. An interface rack is integrally formed with the mother board and provided with a plurality of main slots for receiving interfaces therein, each main slot terminating in an insertion slot formed between a positioning plate and the bottom of the interface rack for guiding and securing the interface to the rack.

Abstract: A mounting bracket assembly for mounting an object to a support structure includes a hanger strap for gripping the object and a channel member for supporting the hanger strap. The hanger strap includes a lobe disposed about the object and inwardly projecting mounting tabs which engage aligned slots formed in the sides of the channel member. A single fastener is disposed through the hanger strap adjacent to the tabs so as to cause the lobe to simultaneously grip the arrester and to retain the mounting tabs in the slots.

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: An open coil electric heater (1) is disclosed having an open frame (3) and an exposed, open heating coil (11) of suitable resistance heating wire. The coil is supported on the frame by so-called "point suspension" electrical insulators (12). The insulators have a pair of apertures or holes (41) therethrough for receiving a pair of spaced arms (45a, 45b) of a wire mounting clip (9). The wire clip arms are crimped or are otherwise deformed adjacent the insulator so as to hold the insulator axially in place on the clip. The clip is welded to the frame.

Abstract: Apparatus for washing the disc portions of an electrical insulator includes first and second mating housing portions for positioning about the discs and fluid lines for delivering a cleansing fluid through the housing portions for cleaning the surface of the discs. The two mating housing portions preferably define a basin for collecting the cleansing fluid and facilitating removal of the cleansing fluid after use. A support assembly including a robotic arm positions the first and second mating housing portions about the discs of the electrical insulator for cleaning. A cleaning liquid such as water or freon or a cleaning gas such as air or steam is applied through the mating housing portions for cleaning the surface of the discs. Following the cleaning, a surface-enhancing material such as a silicone coating can be applied to the surface of the insulator for protection from future contamination and make the insulator more resistant to electrical or mechanical degradation.

Abstract: A surge arrester comprises a molded insulative support bracket for mounting the arrester to a metallic bracket. The insulative bracket includes at least two stringers that form at least one aperture between them. The aperture promotes the draining and drying of the insulative bracket. Baffles formed on the stringers increase the creepage distance across the insulative bracket and increase the rigidity and strength of the insulative bracket.

Abstract: A rigid electrical insulator of the type having a base or a pin at its bottom and having at least one groove (18 or 19) for receiving an electrical cable at its top, the insulator being characterized by the fact that it includes at least one central rod (1) fixed at its bottom end to the base (5) or to the pin and at its top end to a rigid head (7) provided with at least one channel (8 or 9), the outside faces of the rod and of the rigid head (7) being covered in waterproof manner by a covering (10), with the head covering being of a flexible elastomer and the rod covering being selected from elastomers, resins, and varnishes, the groove (18 or 19) being defined by the channel (8 or 9) covered by its covering.

Abstract: A stand-off device for supporting an energized conductor from a utility pole includes an elongated self-supporting stand-off body, a utility pole connecting arm extending from the elongated body at one end for connection to a utility pole, and an energized conductor contact arm fastened to an opposite end of the elongated body. When the utility pole connecting arm is mounted or connected to a utility pole, the energized conductor contact arm at the other end of the elongated body contacts and supports an energized conductor in a stand-off position from the utility pole.

Abstract: A device for securing an electrical outlet cord to an appliance or other surface so that the plug of the cord can be kept snug to the appliance or other surface. The device has a body with a generally flat bottom which includes an adhesive surface. A channel passes through the body and includes a pair of inwardly directed ribs. The ribs are spaced apart sufficiently to permit insertion of the cord, and once the cord has been inserted, it is held by the inwardly directed ribs. The device can be adhered to an appliance at a position adjacent to where the plug is located after the cord has been wrapped around the appliance to easily hold the cord to the appliance.

Abstract: A cluster mounting system is provided for supporting a plurality of transmission line or coaxial cable runs in a non-interfering manner on a microwave transmission tower. The system uses a cluster mount member comprising a single strip of metal formed in such a way as to define a plurality of substantially flat mounting surfaces adjoining each other. The mounting surfaces are angularly disposed with respect to adjoining surfaces in such a way that cable carrying hangers may be affixed to each of the surfaces without contacting each other or the cable carried therein. The ends of the cluster mount member are provided with outwardly extending arms through which the cluster mount member and the plurality of hangers and cable supported thereupon may be rigidly mounted directly onto a leg of the transmission tower or a separate support member provided on the tower.

Abstract: A quick latch mounting device for securing a standoff device to a standoff bracket used in electrical power distribution systems. The mounting device includes a mounting member attachable to the standoff device and movable in a horizontal plane between a first position clamped to the bracket and a second unclamped position, and an actuator having either a cam or a lever for movement in a vertical plane. A clamping member is carried by the mounting member and operatively couples the actuator and the mounting member. The clamping member is slidably movable relative to the mounting member along oblique sliding interfaces to translate the vertical movement of the actuator into the horizontal movement of the mounting member so that the mounting member may be firmly clamped or unclamped to the bracket.

Abstract: An insulator support bracket embodies an elongated insulating rod-like member connected at one end to an electrically conductive metallic end fitting and connected at its other end to an electrically conductive metallic base fitting. An electrical conductor element extends longitudinally of and inwardly of the surface of the insulating rod-like member and electrically connects the end fitting to the base fitting so that any current flowing from the end fitting to the base fitting will flow through the electrical conductor element rather than along the surface of the rod-like member.

Abstract: Means for fixing a device on supporting a channel bar comprise a leg (5), a fixing component (2) and a compression spring (3). The fixing component has a rod (12) and a body (11) which slide in a longitudinal guide (24) in the base (1) of a housing for said device to be fixed on the bar. Two recesses (9, 10) are provided in the base. The compression spring is installed in a partially compressed condition in the first recess (9) and the rod (12) passes through it, said rod forming shoulders (19) with the body. The end of the rod (12) is fitted with a pin (4). The fixing component has two hooks (13, 14) and a guide (15) which co-operates with a groove (27) of the base to make the fixing component captive.

Abstract: An electric insulator which includes a rod (2) made of glass fibres and resin, one end of said rod being received in a fitting (1) made fast to a post (20). To improve the mechanical strength of the rod (2) in the anchoring means, a fitting (1) with a double cone recess is provided and the end of the rod has one or two grooves machined therein and is embedded in the recess in an organic substance (16). The grooves are formed only through the lower portion of the rod where the fibres are subjected to compression forces.

Abstract: The invention relates to an electric insulator of the line post type which has a rod (2) made of glass fibres agglomerated in resin and covered with a protective elastomer sheath. A socket (15) with an opening (16) is provided to make it fast with post (14). The socket end of the rod is machined to provide a hollow (8) designed to improve the mechanical characteristics of the rod in the fitting (1) of the post (14). A locking piece (17), which is complementary to the hollow (8) in the rod (2), clamps the assembly together by means of two fixing parts (18).

Abstract: A bending resistant structure includes a rod (1) which is sealed in a casing (6), said casing receiving a double frusto-conical shaped wedging member (2,3,4) which applies jamming stresses to the rod. The wedging member is formed by a resin mass (2) moulded on the end of the rod (1), a resilient cap (3) covering the resin mass (2), and a thin metal sheathing (4) shrink-fitted over the cap (3), said wedging member being sealed in an associated casing (6), the structure being particularly resistant to high bending moments. Application to electric insulators and more particularly to those of the line-post type.

Abstract: A mounting arrangement for mounting selectively on a channel-section supporting rail with inwardly turned asymmetrical flanges or outwardly turned symmetrical flanges of different sizes, comprises a mounting foot with a row of four projections of which at least two are resilient.

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.

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.