Abstract: Device for connecting a coaxial cable end to a contact socket A device for connecting a coaxial cable end (2a) which may be provided with a cable end-plug (4) to a contact socket (3) comprises a further socket element (9) surrounding the contact socket (3), a seal (8) positioned between the further socket element (9) and the coaxial cable (2a), and a pressing element (11,12) which can deform the seal into contact with the coaxial cable (2a) and the further contact element (9). The device provides both a good seal, and strain relief to the completed connection.

Abstract: An optical fiber water sensor includes a mandrel having a convex or concave shape adjacent to an optical fiber which is adjacent to a water swellable material held in a reservoir. Upon coming in contact with water, the material swells and deforms a section of the optical fiber about a contour defined by the mandrel thus attenuating a signal propagating through the fiber which is detected by an optical detector to indicate the presence of water.

Abstract: The invention provides for a cold applied oval port seal particularly useful for sealing optical fiber cables. The closure includes two shell members which fit together to define the enclosure edge wedge seals and internal flexible fingers to locate the optical fibers, restrain movement of the sealing material, and provide strain relief along the longitudinal axis of the cables.

Abstract: A terminal block for interconnecting conductors in telecommunications circuits is disclosed. The terminal block allows a plurality of telecommunication wires to be progressively connected to a connector member. The terminal block includes a conductor transporting driver module having passageways that customer wires and service wires are inserted into and a connector chamber housing two insulation displacing connector members for the tip and ring lines. Wires are connected to the connector member progressively through a cyclical motion of the driver module relative to the connector members along a path of travel having an angle relative to a mounting surface which facilitates easy access to both wires and a threaded fastener actuating the driver module even in the most demanding telecommunications housing environments.

Abstract: A sealing material preferably having a cone penetration of at least 150 (10.sup.-1 mm) and an ultimate elongation of at least 100% is subjected to mechanical deformation by milling or chopping in the presence of a solvent or suspending medium.

Abstract: A coupler for joining a polymeric elongate substrate to another substrate, comprising:(1) a tubular element containing an aperture; and(2) a penetrating member which is secured to the tubular element and which can move from a rest position to a working position wherein, in the working position, a portion of the penetrating member passes through the aperture and penetrates the surface of the elongate substrate.

Abstract: A device for sealing cables entering a cable coupling sleeve, comprises a sealing plate consisting of at least two elements which fit together to form openings for insertion of cables. The sealing plate is formed by a substantially centrally arranged inner disc element (5) having opening regions at its outer edge, and by ring elements (6) which externally surround all the opening regions when the device is in its closed position. Optionally sealing material may be positioned around the cables.

Abstract: An electrical insulator comprising a cylindrical core (2) of an insulating refractory material, such as porcelain, onto a portion of the curved surface of which a sleeve (8) of insulating polymeric material is fitted. Metal end-caps (4), for electrically connecting the insulator, are fitted to the ends of the porcelain core such that there is an exposed portion (10) of the curved surface of the core between the sleeve and each end-cap. Thus, any damaging electrical activity which takes place at the metal end-caps is directed primarily onto the surface of the porcelain core (2), and not onto the surface of the electrically vulnerable polymeric sleeve (8), which serves to protect mechanically the relatively brittle porcelain core. Optionally, the polymeric sleeve (8) may have a convoluted or a shedded outer surface (12) to increase the leakage path length of the insulator, or to prevent the formation of a continuous moisture path, or both.

Abstract: A sealed vented surge arrester and method of manufacture is described wherein the valve elements are held under compressive loading while strength members including a moisture sealing void filling compound are pressed fit from the sides of the unit with a shed applied over it. The design achieves all the desirable features of tubular strength members with an ease of manufacture from utilizing half-shell or more members which can be applied from the sides along the longitudinal axis of the valve elements during manufacture to provide better void filling between the structural members and the valve elements.

Abstract: A method and a device is provided which allows the connection of coaxial cable termini to one another with minimum long-term loss of RFI shielding. The method comprises the removal of metal oxides from the concentric conductor portions of the two cable termini, applying a sealant to the concentric conductor termini and then connecting the central conductor termini to one another and the concentric conductor termini to one another. The device comprises a collet structure dimensioned to slip over the outside of a standard connection jack. Within the collet structure is disposed a quantity of sealant and the collet structure has at least one aperture through which sealant oozes from the collet structure to the exterior of the collet structure. When the collet structure is attached to the jack, the sealant is caused to ooze onto the concentric conductor thereby sealing the concentric conductor from the ambient.

Abstract: A re-enterable seal (25) for sealing an elongate object (16) passing through a barrier (24) between two environments (53, 54) includes an invertible enclosing member (30) containing a sealant (40). The sealant (40) is adhered to the inside surface (31) of the enclosing member (30). During insertion of the elongate member (16), the enclosing member (30) is inverted inside-out, with the sealant remaining on the inside surface (31) (now positioned outside the enclosing member). The elongate member (16) is then pulled back, causing the enclosing member (30) to re-invert, and bringing the sealant (40) into sealing compression against the elongate member (16).

Abstract: Modules integral with the body of the assembly include one for drop wire connections, one for subscriber wire connections, one for an electronics interface, and one for a network interface device. Protective sealant material within the assembly protects contacts from corrosion and other deterioration, and from shorting. Sealant plungers and a chamber containing a compressed gas impose compressive forces upon the sealant material. Shunt plugs associated with two of the modules permit signal transmission across the modules at desired times, and when removed eliminate the possibility of a subscriber being shocked or transmitting a spark when accessing subscriber components of the assembly. The main body and the modules of the assembly preferably are integrally connected and form a unitary sealed assembly.

Abstract: An adhesive composition particularly useful for bonding a heat-recoverable polymeric sleeve around a cable splice to form a cable splice case comprises a polyamide and a copolymer of ethylene and an ester of an ethylenically unsaturated carboxylic acid, said copolymer having a melt flow index of at least 40 as measured according to ASTM D12380-70; the amount of copolymer being at least 38% based on the weight of the polyamide.

Abstract: A hinge gel-filled environmental sealing and security protection device particularly designed for coaxial cables is described. More specifically, the invention utilizes at least one longitudinal pin and click-n-lock receptacle with a hinge opposite thereto.

Abstract: The invention describes a method of preparing a cable, a coaxial cable mandrel guide/spacer, and a plurality of coaxial cables capable of accepting flexible coaxial cable without the requirement or folding back the conductive shielding braid material to form a connection to the cable. The guide/spacer is also useful with other nonbraided type connectors to avoid the need for a multilevel stripping of the coaxial cable. Avoiding the need for braid rollback eliminates a potential leak path and creates an improved sealed connector.

Abstract: A surge arrester 2 comprises eight surge arresting varistor blocks 4 stacked within a polymeric outer insulating housing 14. A fibre optic cable 16 is fed into the surge arrester 2 through one end electrode 6, helically wound around all the blocks 4 in good thermal contact therewith and exits through the same electrode 6. A monitoring arrangement 18 compares the light incident on and emergent from the optical cable 16 to determine its integrity and thus the integrity of the surge arrester 2.

Abstract: A device (1) is described for disconnectably connecting cable wires to a contact plate (2). The contact plate contains a through opening (9) and, in use, one of the cable wires to be contacted is urged into contact with the edges of that opening (9). The cable wire is moved by a thrust piece (3) which also contains a through opening (24) and which is moved relative to the through opening (9) in the contact plate by means of a screw element.