Abstract: This invention relates to a line guiding assembly comprising a line guiding trough and a line assembly guided therein which includes a plurality of ribbon cables held within an encapsulant and reinforcement channels. The line assembly forms a loop with a lower length and an upper length. A ribbon material either in a drum or coil is provided that fits inside the loop wherein the coil of ribbon material is between the upper and lower lengths of the line reinforced assembly and extends and retracts in the same direction as the movement of the loop and lengths of the assembly. The ribbon material is different from the material of the line assembly and is preferably stainless steel. A double ended system with two line assemblies operating in a single trough is also provided.

Abstract: A dragchain substitute in the form of a line guiding assembly comprising at least one line receiving channel for receiving at least one line loosely disposed therein. At least one of the channel walls of each line receiving channel is designed in projecting manner and resilient towards the channel interior relative to a channel wall supporting it, such that the line can be urged from outside of the line receiving channel through the resilient channel wall and into the interior of the line receiving channel and is enclosed in the line receiving channel after said resilient channel wall has resiled.

Abstract: A flexible conductor for use in a dynamoelectric machine to electrically connect a radial lead of a rotor with field windings and a dynamoelectric machine incorporating such a flexible conductor are disclosed. The flexible conductor has first and second conductive members, the first for attachment to the radial lead and the second, of a U-shaped construction, for connection to the field windings. The two conductive members are spaced apart to form a gap and a flexible connector spans the gap with a portion thereof extending through the gap in the direction of a leg of the second conductive member. The flexible connector is formed from a plurality of sandwiched conductive strips having slots therein which form a catenary connection between the two conductive members, whose radial and tangential stiffness is equal.

Abstract: A connector for attaching a downhole tool to the end of a tubing string insertable in a wellbore includes a frangible coupling portion having a pin with a predetermined cross sectional area which will fail in tension to separate the connector from the tool if the tool becomes stuck in the wellbore. The pin is disposed in a body member of the connector and interconnected therewith by spring washers to absorb transient shock or impact loads on the tool. The connector includes passages for extending electrical conductors through the coupling portion whereby electrical signals may be transmitted through the tubing string to the downhole tool.

Abstract: A corona shield assembly for connection to various portions of a transmission line subassembly having two sets of oppositely mounted corona shields, each corona shield being bolted directly to a portion of the transmission line subassembly such that the corona shields extend substantially over the subassembly portion of the transmission line. A pair of bolts mate with holes in the individual corona shields and with corresponding aligning holes in the transmission line subassembly to mount the corona shields over the desired portions of the transmission line subassembly.

Abstract: A three-phase combined type gas insulated bus is disclosed which comprises at least one eddy current conductor for passing the eddy current caused secondarily by the current flowing in high voltage conductors, thus solving the problem of a newly-found phenomenon that the temperature of a sealed casing increases by the flow of the eddy current. This eddy current conductor is made of such a material of good electrical conductivity as aluminum or copper. Even in the case where the sealed casing is reduced in diameter to such an extent as to pose a problem of temperature increase by the eddy current flow, the eddy current is reduced or completely eliminated in the best case, so that the sealed casing can be made of a low cost soft steel.

Abstract: A bus conductor with a cylindrical external surface is supported on an insulator by first and second bus-supporting members, each comprising spaced legs and flanges at the free ends of the legs. The bus-supporting members embrace the bus conductor when the flanges are in juxtaposition. One set of flanges is fastened together by fastening means comprising a screw extending between the flanges and threaded into one of the flanges and a nut positioned between the flanges and threaded onto the screw. The nut is axially movable on the screw between first and second positions. When in the first position, the nut is tightened on the screw against the juxtaposed flange of one of the bus-supporting members, thereby locking the flanges in a fixed-joint position. When in the second position, the nut is tightened on the screw against the juxtaposed flange of the other bus-supporting member, thereby locking the flanges in a slip-joint position.

Abstract: A cable support assembly for the electrical cables between sealed electrical penetration assemblies within a reactor penetration nozzle has been detailed. The cable support assembly is anchored at one end and slidably movable at the other end to provide for seismic and thermal movement. The cable support assembly includes conduits for protecting and shielding the cables which are disposed within the conduits.

Abstract: To assure safety, an expansion joint in an electrical system must have grounding continuity. A telescoping unit is provided using a braided-conductor bond inside the joint thereby protecting it from ambient contaminants. A high integrity ground continuity is assured even if the conduit is painted or becomes corroded. Selected components are proportioned with respect to each other to assure accurate component alignment with no possibility of relative movement, during assembly, which would endanger ground continuity. Stop means are incorporated in the design to limit the twisting of the grounding jumper during assembly.

Abstract: In a third rail system for electric railroads, double T shaped third rails are used, the web of which has an internal longitudinal slot to receive the guide projections of support insulators and for the space saving mounting of electrical and mechanical connecting parts of fixed and/or expansion joints. With this slot design, good heat transfer and at the same time, a large mechanical moment of inertia are obtained.

Abstract: A bus duct joint for joining two bus ducts consists of a sheet metal enclosure having openings at each end for receiving the respective ends of bus ducts having internal bus which is to be joined together. The interior of the joint member contains flexible conductors for electrically connecting the corresponding bus bars of the two bus ducts so that the bus bars can have a given movement with respect to one another without undue strain on the bus supports. Each of the flexible conductors is covered by flexible insulation material bus joint covers. A sealing rubber sheet surrounds a window through which at least one of the bus ducts enters the sheet metal joint member so that there can be misalignment between the duct and the joint member.

Abstract: A single phase, metal encapsulated generator takeoff for generators of large power rating, which permits equalization of position tolerances in the vertical and horizontal direction when making the connection to a block transformer without effort in which each phase of the generator leadoff consists of a rigid inner conductor and a cylindrical, gas-tight tubular envelope which surrounds the inner conductor concentrically and in which the inner conductor is supported by support insulators, and which has ring-like expansion compensators at suitable spacings for taking up length changes caused by temperature variations. The inner conductor is connected to the terminals of the block transformer by expansion strips. The end section of the tubular enclosure of each phase facing the block transformer has two spaced joints, tiltable in all directions, in the form of expansion compensators.

Abstract: An electrical joint which is capable, while carrying current, of simultaneous vertical and horizontal articulation as well as extension or retraction in the longitudinal direction comprises in combination a pair of electrical conductors for supplying electrical energy to mine equipment, each of said conductors having a square C cross section defined by a rear wall, a pair of upstanding ends formed, respectively, on opposite edges of said rear wall, and a pair of inturned lips formed, respectively, on said upstanding ends; a unitary jointing member having an I cross-section defined by first and second parallel cheeks interconnected by a central stem portion; said jointing member being mutully engaged with said conductors with said first cheek being located within said conductors, with said first cheek having a dimension, in its direction of parallelism, such that there is established an articulation space beyond opposite ends of said first cheek, and with said stem portion extending outwardly between the intur

Abstract: A tubular metallic sheath for horizontally disposed enclosed electric bus apparatus includes a corrugated bellows section having at one end a terminal convolution forming in internal annular recess. A sheath portion axially adjacent the recess, which may be a substantially tubular end portion of the bellows, is axially flared toward the annular recess. Within the bellows in coaxial radial spaced relation is mounted a metallic sleeve fixed at one end and axially flared toward a free end which is disposed in radial spaced relation within the oppositely flared adjacent sheath portion. The sleeve serves to shield the corrugated portion electrostatically so that the terminal convolution constitutes an effective particle trap. The bottom surfaces of the sleeve and the sheath portion adjacent its free end provide a stepped passageway for leading loose particles into the trap.

Abstract: The power line comprises a conducting section enclosed in an electrically insulating casing open on one side. The section and the casing are hung by claws. At least one claw is designed to block the conducting section and the casing. Expansion joints are designed at some intervals, and end elements prevent any access to the conducting section which is electrically supplied by junction units included in the end elements connecting two adjacent segments.

Abstract: A tube enclosed pressure gas insulated electrical cable has at least one conductor supported within a tubular enclosure by means of insulators, the conductor being sectionalized longitudinally and provided with expansion joints between the ends of adjacent sections to compensate for thermal expansion of the conductor. To protect the expansion joint and prevent it from being compressed and possibly collapsing under the inherent weight of the internal conductor structure when the cable is laid down a steep slope, a protective device is provided, this being constituted by a compression spring interposed between the ends of adjacent sections at the expansion joint for counteracting the weight of the conductor on the joint.