Abstract: This invention provides a terminal block or an adaptor where the binding posts and the caps which screw on the binding posts are adapted to receive small wires without breaking or cutting the wires when the cap is installed with normal installation torque for binding posts. The binding posts and cap can also receive large gauge wires and make connection therewith through the insulation on the wire without cutting or braking the conductor in the wire.

Abstract: A re-enterable butt cable splice closure comprising a base and domed cover. The base has various parts that hinge together around cables, and has a gel sealing material defining cable entry ports which gel is put under compression when the parts of the bases are brought together. The base is supported on a support that has guides that align the cables with the ports.

Abstract: An optical fibre cable is terminated by stripping back the jacket a certain length, cutting away the exposed core a shorter length, positioning an organizer a short distance from the newly formed end of the core, and providing a housing bridging the core and the organizer.

Abstract: This invention provides for the radiation grafting of certain organopolysiloxanes to polymeric supports. The organopolysiloxane material is partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and being bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to the above properties by conventional means then placed in contact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.

Abstract: A telephone junction box has two or more switches each of which comprises two resilient conductors that can be sprung between a first configuration in which they are in electrical contact and a second configuration in which they are separated. The conductors preferably include insulation displacement means.

Abstract: A coaxial cable connector is provided for installation and use with a prepared end of a coaxial cable. The connector comprises a body and nut threadably tightenable to the body. The body includes a center pin chuck for engaging the center conductor of the cable when the nut assembly is tightened to the body. The nut defines an interior space including a mandrel assembly which is freely rotatable within the interior space until the nut is tightened to the body. The mandrel assembly includes an insulator cone for guiding the center conductor; it includes a clampling arrangement for engaging and clamping the center pin chuck as the nut is tightened to the body. The assembly further includes a mandrel which is slideably mounted under the cable outer metal jacket in a space provided after removal of a portion of the dielectric core incident to preparation of the cable end. A ferrule is slidably mounted over the outer jacket and the ferrule includes collet fingers disposed over a portion of the mandrel.

Abstract: An environmental sealing connector housing which includes means for retaining the housing on the terminator and the connector both in the associated but unconnected state, and in the connected state is described and illustrated. More specifically, the sealing connector housing includes compartments within the housing which are sized to accept the tap port and connector combination as well as separate compartments which can retain the housing on the tap while providing a compartment for the connector when the connector is not connected to the tap. In addition, the housing is designed so that a 180.degree. rotation of the housing permits the same housing to be used on both connected and unconnected connector/tap combinations to serve as a means of avoiding tampering with or stealing of the signal emanating from the tap.

Abstract: An enclosure especially suitable for telecommunications applications. The opening and closing of the cover of the enclosure is about an axis that permits the installation of the enclosure in environments requiring a minimum of clearance. More specifically, the cover is affixed to a side of a base member of the enclosure opposite to an open face; and the cover has a centrally located hinge which permits the cover to rotate closely about the axis of the open face.

Abstract: The invention provides for a reusable telecommunications pedestal closure containing a water and oxygen impervious liner to minimize the oxygen and water degradation effects on the fine copper wires contained in a telecommunications splice between at least two telecommunications cables.

Abstract: The invention provides for an electrical connection device wherein the portion of the device making the electrical contact is part of but spaced apart from the point of mechanical retention of the wire to which an electrical contact is made. More particularly, the invention provides a terminal block wherein the major portion of mechanical retention is at a point different from that point at which the electrical contact is made.

Abstract: A hot-melt adhesive composition which comprises a mixture of:(a) 25-40 parts by weight of a polyethylene alkyl acrylate terpolymer containing maleic anhydride and having a melt flow index as determined according to ASTM D1238-70 of at least 40; and(b) 25-70 parts by weight of a polyethylene alkyl acrylate copolymer having a melt flow index as determined according to ASTM D1238-70 of at least 40.

Abstract: A toolless environmental splice enclosure capable of fitting within an aerial splice case is disclosed. The environmental closure permits sealing and reentry to a cable splice region.

Abstract: A wrap-around sleeve for environmental sealing of cables etc. comprises a first web of shrinkable material, preferably electrically-heatable and having closure rails at opposing edge portions which can be held together to maintain the sleeve in a wrapped configuration. A second web extends from one of the rails within the sleeve, it has a length less than the length of the sleeve, and it can act as a localized cable build-up, or help to seal between branching cables.

Abstract: A telecommunications splice case comprises a flexible sheet that can be wrapped around the splice and optionally further surrounded by a rigid casing. The sheet has a heat-activatable sealing material at its edge and an electrical heater for activation.

Abstract: A coaxial cable connector is provided for installation and use with a prepared end of a coaxial cable. The connector comprises a body and a nut threadably tightenable to the body. The body includes a center pin chuck for engaging the center conductor of the cable when the nut assembly is tightened to the body. The nut defines an interior space including a mandrel assembly which is freely rotatable within the interior space until the nut is tightened to the body. The mandrel assembly includes an insulator cone for guiding the center conductor; it includes a clamping arrangement for engaging and clamping the center pin chuck as the nut is tightened to the body. The assembly further includes a mandrel which is slideably mounted under the cable outer metal jacket in a space provided after removal of a portion of the dielectric core incident to preparation of the cable end. A ferrule is slidably mounted over the outer jacket and the ferrule includes collet fingers disposed over a portion of the mandrel.

Abstract: This invention provides for the radiation grafting of certain organopolysiloxanes to polymeric supports. The organopolysiloxane material is partially crosslinked mixture which contains from about 10% to about 90% by weight of uncrosslinked organopolysiloxane oil and has a cone penetration of about 100 to about 350 (10.sup.-1 mm) and an ultimate elongation of at least about 100%. The organopolysiloxane fluid may be placed on the polymeric support and crosslinked to produce an organopolysiloxane material having the above properties and being bonded to the polymeric support. The organopolysiloxane material also can be crosslinked to the above properties by conventional means then placed in contact with the polymeric support and irradiated to crosslink the material to the polymeric support without substantially changing the properties of the organopolysiloxane material.

Abstract: A cable is sealed at a conduit such as an outlet from a housing and preferably also terminated and blocked by shrinking over it a conductive polymer article having at least three portions. An end portion is shrunk to engage cable jacket, an intermediate portion is heat-shrunk to drive an adhesive into interstices between the conductors of the cable, and an opposite end portion is shrunk to engage the conduit.

Abstract: A wraparound closure with closure means which can be easily re-opened, such as a zipper or Velcro-type closure, provides environmental protection for splices or branch-offs in elongate substrates, such as communications or other cables, which closure has the advantage that it can be opened and re-closed easily and quickly. The end portions of the closure are sealed around the cable substrat with a sealing material having a cone penetration value of 100 to 350 (10.sup.-1 mm) and an ultimate elongation of at least 200%. The wraparound may include a retaining means, such as a resilient plastic ring, which may be positioned to hold the wraparound closure away from the cable substrate when the closure is opened and work is being performed on the cable and may be positioned around the cable to provide support for the wraparound closure when it is in the closed position.

Abstract: A temperature indicating composition is provided for use on a recoverable article so that heating to produce recovery or to activate a heat-activatable sealant can be monitored. The composition comprises a thermochromic colorant in a binder that can be cured by UV radiation. Such a composition can be applied rapidly to polyolefin substrates by printing.

Abstract: A butt cable splice is environmentally sealed by a closure that may be integrally blow-moulded, but which can be cut for re-entry and then resealed by partially telescoping together the resulting parts.