Abstract: A wiring box for arranging the cables is buried under the ground after the cables are arranged and after the box is hermetically sealed with mortar in the construction site. It is therefore desirable that the wiring box is easily assembled at the construction site. The adapter for wiring of the invention is consists of a box and partitioning walls that divide the interior of the box into a plurality of areas. Namely, insertion holes are formed in the adapter, cables are inserted in the insertion holes, and paste is charged into the areas partitioned by the partitioning walls, enabling the cables to be easily arranged.

Abstract: A utility pull box for use in electrical power feed and distribution networks. The pull box is made in a hexagonal configuration with six panels of equal width, all having the same included angle between adjacent panels. A plurality of knock-out windows are located in the lower area of the panels and serve as entranceways for cable carrying ducts which cables are to be connected to appropriate buss hardware located in the interior of the utility box.

Abstract: Procedure for making in-situ underground manholes intended for the passage of electric and telephone ducts which are dimensioned so as to permit the operator's work inside for carrying out repairs, mounting, maintenance, etc. of electric and/or telephone networks. The procedure is based on obtaining a module made of a tough, nonconducting rust-proof light-weight material which is laid in the corresponding hole on the ground and then it is externally filled up with concrete to complete the manhole construction. The inner mould or module is made by joining together two identical square cross-section pieces with a longitudinal profile which will determine the manhole opening in this joining together of both pieces.

Abstract: A distributing box for laying a cable duct is dealt with in the construction field so that, after laying the cable duct, the box is sealed with mortar and then buried in the ground. Accordingly, the distributing box should desirably be set up in the construction field with ease. Underground water must not permeate the distributing box which has been buried in the ground. In the present invention, therefore, a distributing adapter which is mounted in the wall of a concrete box is constructed of a case which has a back plate, a partition wall which divides the interior of the case into a plurality of areas, a flange which is formed at the periphery of the case, and marks for drilling positions, which are put on the rear surface of the back plate.

Abstract: A junction center is useful for wiring the electrical pump and alarm system circuits of sanitary mound systems and of the lift stations of conventional septic systems The junction center comprises a relatively large diameter main tube of electrical conduit placed against the outside of the sanitary system sewer riser. A branch tube extends through the wall of the main tube and through a hole in the wall of the sewer riser. Supply wires are fed from a trench into the main tube from the bottom end and out the top end. Wiring from the pump and alarm system are fed from the sewer riser through the branch tube and into the main tube interior and out the main tube top end. The wires are connected outside of the main tube; then the wires are pushed back into the main tube. If the pump and alarm system operate on different voltages, a divider in the main tube divides the interior thereof into separate passages for the pump and alarm system wires.

Abstract: The present disclosure sets forth a telephonic equipment facility for field installation of equipment connected to telephone cables. It comprises a partially buried cabinet or container constructed of multi layered materials, defining a bottom having a sloping floor for draining water to a trough, upstanding sidewalls and a top or roof. In addition, above the bottom and protruding from one of the sidewalls, there is an extending cowling sized to define a door opening which is positioned above the support ground. At the opposite end of the structure, there is an appended cabinet portion having internally located frame members for support of cables extending through openings into the housing so that conductor pairs can be serviced. Equipment is placed in the interior supported on bottom mounted runners and upstanding frame members.

Abstract: A cable assembly has a cable of conductor assemblies within an insulating envelope, a conducting shield disposed around the cable, a grounding wire outside the shield extending along the length of the shield and in continuous contact with the shield, and an insulating and weatherproof jacket enclosing the shield and the grounding wire. A method for using the cable assembly to connect a satellite television antenna to a receiver in a remote building, providing protection from ground induced lightning, is also disclosed.

Abstract: Both a system and a method are provided which allows an eddy current probe to accurately determine both the proximity and dimensions of non-conductive structures which are normally invisible to such probes. The system includes a portable target medium that is movable into a known position with respect to the non-conductive structure, and that includes a conductive material that couples strongly with a fluctuating magnetic field, and a movable eddy current probe that emanates a fluctuating magnetic field and which generates a signal indicative of the magnitude of the interaction between the field and the portable target medium from which the distance between the two may be computed. The system may be used to determine the proximity of non-conductive structures such as plastic pipes that have been buried under ground, as well as the dimensions of such non conductive structures.

Abstract: A distributing box for laying a cable duct in the construction field in is sealed, after laying the cable duct, with mortar and then buried in the ground. Accordingly, setting up the distributing box is simplified. Also, underground water must not permeate the distributing box. In the present invention, therefore, a duct laying fixture is constructed includes a box-shaped barrel of a water-expansible elastic material attached to the bellows type cable duct, and a water-expansible sheet which is stuck on the outer surface of the barrel. The barrel includes a duct mounting port in which the bellows type cable duct is mounted. Ribs are formed on the peripheral wall surface of the port to come into close contact with the outer peripheral surface of the bellows type cable duct. A slit permits spreading the barrel. The sheet is stuck on the outer surface of the barrel after the duct has been passed by spreading the barrel.

Abstract: Underground cables are laid in a concrete box which is to be buried in the ground. According to the present invention, an adapter is formed with a hole, and a bushing is mounted on the adapter through the hole. Subsequently, a cable duct is fitted into the bushing, and the resultant adapter is attached to the concrete box so as to conceal an opening provided in the concrete box beforehand.

Abstract: A junction box for flush mounting around a swimming pool, to connect electrical fixtures of the swimming pool, comprises a one piece plastic housing having a side wall defining an inner cylindrical chamber having an upper opening and a bottom wall. A pair of downwardly extending projections each carry an axial bore for leading wires into the chamber. A pair of blocks at diametrically opposed positions in the chamber carry a brass grounding bar to which bonding wires may be connected using screws. A potting compound substantially fills the chamber before the chamber is closed by a threaded lid which, when seated on the housing, lies flush with the deck of a swimming pool.

Abstract: There is disclosed an electrical junction box having a plurality of tiers each of which increases in cross-sectional area from the top of the box to the bottom thereof. The tiers, being annular are adapted to receive conduits from a plurality of angles or levels. A releasably engageable lid covers the box which may be mounted to or within a substrate by a mounting member integral with the junction box.

Abstract: An apparatus including an elongate three-part housing with end portions separable from a main housing portion. A cable extends through the housing and has a looped portion within the housing. Within the housing is a coil return spring attached at its ends to clamp members affixed to the cable, whereupon a tensioning or stretching of the cable effects separation of the housing portions with subsequent return of the cable to an initial position subsequent to removal of tensioning of the cable.

Abstract: An elongated tape for marking underground lines having a cross-woven scrim formed by a first plurality of elongated plastic fibers disposed parallel to the axis of elongation of the tape and a second plurality of elongated fibers disposed normal to the fibers of the first plurality. Preferably, the tensile strength of the second plurality of fibers exceeding the tensile strength of the first plurality of fibers. The scrim is coated with a layer of plastic to form a surface, and a sign is disposed on the surface. If the tape while buried encounters a digger, it tends to break transversely rather than along the axis of elongation leaving the sign legible. In one embodiment, a layer of electrically conducting foil is disposed on one side of the scrim.

Abstract: A control housing for storing control boxes below ground level. The housing includes an arm for raising the controls out of the housing for access. A rotatable lift assembly is connectable to a position sensitive control box and maintains the position sensitive control in its original position as the arm is raised.

Abstract: A method for reconditioning a length of air core cable and for discharging moisture from the cable. Gas under pressure is forced into one end of the cable to cause discharge of moisture from an opposite end of the cable. A quantity of fluid solvent and lubricant is injected into the end of the cable and forced by gas under pressure as a unitary charge along the length of the cable.

Abstract: A marking tape that is positioned underground above utility lines wherein the marking tape carries a pair of closely spaced, parallel, insulated conductors that extend the length of the tape and at least one other insulated conductor extending the length of the tape which is separated from the pair of conductors at a distance that is greater than the distance between the conductors of the pair of conductors. Passive markers having a resonant circuit can be selectively placed along the tape wherein the resonant circuit is electromagnetically coupled to the pair of conductors and the other conductor. The other insulated conductor can be one of a pair of conductors similar to the other pair of conductors. A method is disclosed whereby the making tape can be electromagnetically traced with the position of the passive markers established. A method is also disclosed for determining the distance to a break in the tape which causes the pair of conductors to be severed.

Abstract: Disclosed is a kit of curvilinear duct components and a method of utilizing the same to provide an improved mode of simultaneously installing and protecting multiple electrical cables in underground duct installations. The components include tubular elbow members, a major portion of at least some of which are of D-shape in cross section and having a major internal width at least as great as the combined diameters of multiple cables to safeguard against cable jamming during installation and which portion converges at one end to a circular shape matable with adjacent linear ducting. The curvilinear components are formed of impervious, electrically nonconductive, abrasion resistant material, such as polymer, concrete or glass filled thermosetting plastic.

Abstract: The invention contemplates a buried-cable junction enclosure that is characterized by an inner wall surface of circular symmetry about a vertical axis, wherein a relatively large-diameter cylindrical base member or storage vault accommodates substantial helically coiled end lengths of the two cables to be spliced, and wherein an intermediate frustoconical member provides smooth inner-surface transition from the base member to the much-reduced cylindrical inner surface of a pedestal member, having removable-cap access at or near grade level. The pedestal member is sized and adapted for removable suspension and containment of the splice case by which corresponding lines (fibers) of the respective cable ends are connected. The respective cables enter the enclosure at diametrically opposed ports at the closed end or floor of the base member.

Abstract: An improved underground utility equipment vault is comprised of at least two concentrically disposed chambers. The inner chamber is a non-electrically conductive material such as wood and is disposed in spaced concentric relationship within the outer chamber which is metallic, preferably steel. The exterior surface of the outer chamber is provided with a protective dielectric coating and cathodic protection in the form of sacrificial anodes. The inner chamber is provided with heat vents adjacent its uppermost surface area and cold air returns adjacent its lowermost surface area. The heat vents may be provided with exhaust fans. The inner chamber is provided with above ground air communication and an entryway. The interior of the inner chamber and electric gear therein contained is electrically isolated from the outer chamber and the vault exterior.

Abstract: A pipeline or other subterranean structure is protected by burying above it a signaling material in the form of a continuous support of a material having low resistance to rupture by carrying at least one row of spaced apart strip sections of a high resistance to rupture. Because the strip sections form a discontinuous band, when encountered by the excavator, the support ruptures and the strip sections can only be pulled and remain unsevered so that free ends of the sections are readily visible to the excavator operator.

Abstract: A novel connecting system for a gas-insulated switchgear apparatus is disclosed. An electrical device is installed on a foundation adjacent to gas-insulated devices of respective phases in a predetermined indoor installation space, and bushing are arranged on the other side of the electrical device. The gas-insulated devices are connected to the bushings by gas-insulated bus bars respectively. Pits for gas-insulated bus bars are formed independently through the foundation of the electrical device, and a transport unit is laid in each of the pits. This transport unit is combined with a transfer unit mounted on each of the gas-insulated bus bars to transport the gas-insulated bus bars of respective phases to facilitate the laying thereof. The gas-insulated bus bars are thus laid in a short distance without reducing the strength of the foundation of the electrical device while at the same time facilitating the laying of the gas-insulated bus bars.

Abstract: Unauthorized tapping onto ground level cable TV junction connector boxes or the like is prevented by an anti-tapping device which is removably anchored into the ground so that it resists tilting; has a housing enclosing the junction box, and the removal and anti-tilt means; and has a locking means which rotatably mounts the housing so that it readily rotates, thus frustrating attempts to gain access to the junction connectors.

Abstract: A buried cable splice closure comprising a rigid plastic outer shell having an opening at least at one end through which cables may extend into the closure has a lower chamber adjacent each end opening for support of portions of cables extending into the closure with the cable jacket and any cable shield terminating in the lower chamber. An upper chamber is spaced longitudinally of the closure from each end opening so as to have a lower chamber between each end opening and the upper chamber and the upper chamber has a cable splice support area spaced a distance above each lower chamber when the splice closure is in an upright position. A cable passageway within the outer shell communicates between each lower chamber and the cable splice support area in the upper chamber and means are provided for permitting introduction of an encapsulant into at least each lower chamber.

Abstract: Method of removal of the interior parts of cables in the ground, preferably coaxial (1) and telecommunication (2) cables, for the insertion of new conductors. The insulation material (3,4) may be dissolved or broken down by means of chemical influence of e.g. xylene or copper ethylene diamine for coaxial cable (1) and telecommunication cable (2) respectively, whereby the solution serves as a sliding agent by the withdrawal of the conductor/conductors (5,6). The insulation washers (3) of a coaxial cable (1) may be melted by insertion of a heating element (8) or by means of heat from electrical resistance in the parts (5,7,9) of the cable. The insulation washers (3) in a coaxial cable (1) and the conductors (6) with the insulation material (4) in a telecommunication cable (2) may be milled and removed. By applying electro-magnetic pressurized oscillations the insulation washers (3) of a coaxial cable (1) may be destructed.

Abstract: This invention provides a convenient apparatus and method for mounting equipment in an underground vault to provide convenient access to the equipment whenever such access is necessary. The vault mount includes a frame having one end thereof permanently pivotally mounted to the frame releasably attached to a second wall of the vault. Suitable springs are mounted between the first wall of the vault and the frame to urge the frame to pivot about the mounting to the first wall. When the second end of the frame is released from its wall mount, the frame and the apparatus mounted thereon pivots from a generally horizontal position in the vault to a generally vertical position with the equipment mounted on the frame extending out of the vault.

Abstract: At least one metallic element is incorporated into a cable during the manufacture of optical fiber cables, along with one or more elongated optical fibers. Such metallic element with its insulation is similar in diameter to an optical fiber with its sheath. The electrical resistance of the metallic element varies very little with temperature, but does vary with strain. Hence, by monitoring the resistance of the metallic element, the strain to which the fibers are subjected can also be monitored.

Abstract: A gas-insulated high voltage cable for submersion in water has an increased internal gas pressure in the interior of the outer cable housings which are to be at a depth greater than 100 feet. The wall thickness of the housings may be the same as that of housing sections which are at external ambient pressure or at an external pressure given by immersion in water at a depth of less than 100 feet. The increased pressure is applied to the housings through the central conductor which is continuous for the cable.

Abstract: A submarine electric cable installation in which the cable is protected from damaging stresses to which it would be subjected if it were permitted to be suspended between projections on the water bottom by enclosing the portion of the cable which would normally engage the projections with a tubular stiffening means, the stiffening means having a rigidity greater than the rigidity of the cable and providing a space between it and the cable for cooling water flow. The stiffening means may comprise one or more tube and, preferably, comprises a plurality of tubes having their ends secured to the adjacent ends of other tubes, each tube comprising a pair of C-shaped shells with annular corrugations and secured together. Also, a method of applying the tubes to the cable in which the tubes are applied to the cable, as it is laid, between the laying ship and the surface of the water.

Abstract: A tubular housing and cover therefor, forming a secondary power pedestal, have a tapered construction and are arranged to nest together in shipment, storage and handling. The lower end of the housing is open and has substantially straight walls at its lower end to provide such nesting with the cover. The opposite sides of the housing adjacent the bottom are slotted and are arranged to receive a pair of side strips capable of being held in the slots by a pair of connecting strips combining with the side strips to form a ground anchor flange. The connecting strips are of a structure facilitating their use as a ground anchor stake in the event that a ground anchor stake is to be used rather than a ground anchor flange.

Abstract: A device for stabilizing, with reference to the surrounding terrain, a cable splice enclosure having a cable splice therein, comprising a stabilizer rail positionable in a supporting position adjacent the splice enclosure, strap means for holding the splice enclosure in position against the stabilizer rail, a spacer member adjustably positionable longitudinally on the stabilizer rail for supporting a portion of cable near the splice enclosure, a cradle member adjustably positionable longitudinally on the stabilizer rail and supporting the splice enclosure, and a support leg attachable to the stabilizer rail to extend laterally from the stabilizer rail.

Abstract: A system for primarily supplying fishing boats lying berthed in harbor with electrical power, comprises a plurality of terminal boxes (1) which are countersunk along the edge of the quay and each contains electric power socket outlets (2), a drain hole (10) and a heating cable (19). The coverplate (5) of each box is self-closing, self-locking and lies on ground level, leaving in closed position an opening to the interior of the terminal box to permit passing therethrough a line (16) connectible to the electric power socket outlet and extending from an electrical connection box (18) which can be mounted on a boat (17) and has several electric power socket outlets and an electricity meter. In addition to electric power socket outlets, outlets for water, telephone service, compressed air, vacuum and/or fuel can be mounted in the boxes which can also be placed in airports and on camping sites.

Abstract: An electrical current of potential is fed to or measured in test leads associated with underground piping, casings and the like through the use of a cathodic test station for flushing mounting in the ground. The test station includes a hollow cylindrical housing having a flanged upper end and an implanted lower end receiving test leads and anchored in the ground by a bar extending therethrough and by ribs projecting radially from the outer surface of the housing. A carrier forms an airtight pocket within side walls projecting from a solid end wall having a flange extending outwardly for recessed support on a shelf in the flanged upper end of the housing. A clamp within the airtight pocket of the carrier supports a terminal block. In one form, the clamp is produced by protrusions from the side wall of the carrier and in another form, a clip extends across the face of the end wall of the carrier. Ends of the clip are spaced from the end wall to support a mounting wall of a terminal block member.

Abstract: A splice case housing electrical splices between two cables where the splices are immersed in an oil sealant having a specific gravity greater than water. The case includes holes located above the splices for receiving the electrical cables. Since the oil is heavier than water, if water were to enter the splice case, it would be above the oil and splices, thereby causing a hydraulic force on the oil, causing an even more intimate seal of the oil around the splices.

Abstract: Multiphase transformer for power distribution in a supply network includes a single block of cast resin having high voltage and low voltage conductor windings embedded therein, and an iron core with a plurality of legs and an upper and lower yoke formed of closely-stacked transformer laminations centrally embedded in the block, the block having axially-extending ribs integral therewith defining troughs between the ribs and defining spaces between the ribs and the core, legs and yokes, watertight caps disposed between the ribs closing off the troughs and holding the core, legs and yokes, and mechanically compacted dry quartz sand filled in the space.

Abstract: A submarine cable and an electric power line using such cable for transmitting electric power at high voltge from a first point adjacent the surface of a water body to a second point adjacent the surface of a water body, a portion of the cable lying in great water depths where the hydrostatic pressure is high. The cable comprises at least three sections, each section having its insulation dimensioned or selected for operation at the high voltage when subjected to the ambient pressures. The section, or sections, lying at great depths has insulation with a voltage breakdown strength which varies with pressure, the strength increasing with pressure, so that the insulation thereof may be less than would be required if the such sections were to be used under pressures less than those at the great depths.

Abstract: A switching apparatus adapted to be used with medium-voltage cable networks comprising switching units each of which is of the single-pole type and each of which includes an encapsulation adapted to be embedded directly in the soil and means for actuating the unit in response to a remote control.The switching apparatus is particularly suited for medium-voltage cable networks in cities where the erection of above-ground distribution facilities is undesirable and expensive. The switching units may, preferably, be designed as vacuum circuit breakers.

Abstract: The invention relates to a method for laying carrier cables, more particularly telephone lines, comprising the steps of burying a bundle of pipes connected to a connection box supplied by a main cable, severing certain of the pipes forming part of the bundle to constitute a local opening therein at the suitable spot, connecting one end of a secondary connection pipe to the severed opening of the pipe forming part of the bundle, the opposite end of said secondary connection pipe terminating at the apparatus to be supplied, passing a secondary branch cable in the severed pipe extended by the secondary connection pipe, one side of which cable thus terminates at the connection box and the other at the apparatus to be connected to the system. The invention also concerns a bundle of pipes for carrying out the method.

Abstract: A lightweight tubular housing open at both ends is specially constructed so as to be buried in the earth to almost its full height and yet withstand thrust forces of fill material. For this purpose the housing has outwardly curved side walls, it is tapered to a larger dimension toward the bottom, and its walls have an increasing outward curvature toward the bottom. The front wall of the housing is of less height than the rear wall to provide front access to the equipment. An inverted cup-shaped cover closes the upper open end of the housing and has a hinged connection that allows it to be opened or to be readily disconnected.

Abstract: A sectionalized structure of preformed wall panels especially adapted for use as base for burial in the earth for mounting above-ground electrical equipment such as sectionalizing cabinets, transformers, electrical switch gear boxes, and similar equipment connected to underground utility cables. The base is preferably formed from precast concrete modular form panels which are adapted for assembly at the installation site. The wall members terminate in beveled vertical edges which abut to form mitered corners. Clamping fastening means engaging the mitered corners secure the base wall panels in rigid geometrical configuration.

Abstract: Potential hot spots, such as at joints, in buried power cable runs are cooled by juxtaposing coolant flow conduits adjacent the cable and providing thermally conductive bridging members between the conduits and the cable throughout the potential hot spots to provide local cooling directly at the hot spots. The bridging members are cast metal clamps with portions to attach to lugs formed on the metallic cable sheath at the hot spots and portions which embrace the cooling conduits. Copper strips are provided underlying the clamps and embracing the cable and the cooling conduits to enhance thermal transfer from the cable to the coolant, and, with the coolant conduits formed of copper pipe, electrical insulators are provided in the metallic cable sheath so as to define an electrically isolated section in the region of the potential hot spot which can be coupled thermally and electrically directly to the coolant conduits.

Abstract: Underground electrical equipment such as a transformer or cable is prevented from thermal runaway by back-filling the trench in which it is laid with a soil which includes water entrapped in highly water-absorbent hydrophilic polymeric gel particles soaked with water. The water-soaked particles preferably are coated with a water-impermeable film. The water may also be entrapped in liquid form in small balloon-like containers. Also, a water impermeable sheath may be formed around the back-fill soil to minimize evaporation from the particles.

Abstract: Three single-conductor cables are laid down such that viewed in cross-section they are located at the vertices of an equilateral triangle, or else they are laid down in a common plane. Each cable is internally water cooled, and provided with a respective return-flow pipe for cooling water. The return-flow pipes are located on phase-angle loci for two phase angles .phi..sub.1.sbsb.1 and .phi..sub.1.sbsb.2, where the phase angle in question is the phase angle of the longitudinal voltage induced in the return-flow pipes by current flowing in the cables. The two phase angles differ by 180.degree.. As a result, no longitudinal voltages are induced in the return-flow pipes and/or the longitudinal voltages induced in successive sections of the pipes cancel each other out so as to result in no net induced longitudinal voltage.

Abstract: A method of recovering non-ferrous metal conductors from a sheathed cable laid in the earth comprising excavating the earth at spaced intervals, such as 20 to 50 meters, along the cable, severing the cable, stripping off the sheath to expose the conductors adjacent the severed end or ends, and withdrawing the severed conductor length by supplying a pulling force to a severed end.

Abstract: A grade-level enclosure for transformers and other electrical apparatus used in utility electric distribution systems, comprising a hollow, open-ended concrete box adapted to be partially embedded in the ground and to extend above ground level, and an open-bottomed cover for the box, whereby to complete the enclosure for the electrical apparatus, special provisions being made for supporting the apparatus in the enclosure, ventilating the enclosure interior efficiently, but preventing the insertion of foreign objects through the ventilation openings, and rendering access for installation, maintenance and servicing of the equipment easy and convenient, while at the same time providing a high degree of security against tampering or entry by unauthorized persons, and a high degree of safety against electrical shock or other injury.

Abstract: A separable connector module for connecting shielded electrical power cable. It is of the type including an insulating housing containing a cable insert member. A male contact rod assembly, including a metal contact rod, is fixed at one end to the insert member. An insulating arc follower is fixed to the rod at its other end. An insulating mounting pin extends from the end of the rod and along at least a portion of the interior of the follower. The improvement comprises an electrically conducting coating on the mounting pin and in electrical contact with the rod.

Abstract: A waterproof cable junction for connecting a number of service lines to a common cable. The junction provides a housing having a multi-line input cable and a plurality of single line output cables, the conductors of the input cable being spliced to the conductors of the output cables within the housing and the housing filled with a sealing or potting compound. Each of the output cables is of relatively short length with the outer end permanently sealed to prevent moisture from entering the housing through the free end of the outer cable. Preferably, the output cables are looped back so that the outer ends are brought back into the housing and sealed within the housing by the potting compound.

Abstract: A transmission system for handling materials moving underground comprising a plastic pipe having metallic material of relatively high electrical or electronic conductivity and sensitivity secured to the pipe body. When the pipe is installed in the ground, the metallic material will be automatically buried in association with the pipe body. Detecting means suitable for sensing the presence of the conductive material can then be employed for locating the pipe whereby digging operations or other activities can be engaged in without the danger of damaging the pipe.