Abstract: The end flange (16) of the first encasing part (10) of the gas-insulated high-tension installation is an outer flange and includes through bores (34). A first securing ring (18) is provided on the end-face side of the end flange (16). The securing ring holds a first insulator (28). The first securing ring (18) includes through bores (36) which are in alignment with the through bores (34) and which have a stepped configuration. The step forms, in each instance, a counterabutment (42), which cooperates with the abutment (44) of the respective threaded bolt (38). To secure the first securing ring (18) on the first encasing part (10), the abutment (44) rests on the counterabutment (42) and, on the other side, the threaded bolt (38) is supported by the nut (48) on the end flange (16).

Abstract: The invention provides a method for precisely joining two sections of dielectric waveguides to form a waveguide joint, wherein such waveguides comprise a dielectric core, preferably of polytetrafluoroethylene (PTFE), one or more layers of dielectric cladding, preferably of PTFE, wrapped around the core, and one or more shielding layers wrapped around the cladding. A precise joint is provided wherein the two joined sections of waveguide are precisely oriented axially, radially and rotationally with respect to each other.

Abstract: A fluid filled marine seismic streamer employs a plurality of hydrophones spaced apart along its length to detect seismic reflection signals from subsurface formations below a water layer. A plurality of fluid blocking members are also spaced apart along the length of the streamer. A plurality of flow through spacers having varying flow through apertures are positioned between each hydrophone adjacent to a fluid blocking member that generates pressure pulses in the fill fluid of significant magnitude to be detected by such hydrophone. The size of the flow through apertures of such spacers progressively increases in a direction leading from the fluid blocking member toward the hydrophone.

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: 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: Gas-insulated electrical apparatus including a generally vertically disposed air termination, a horizontally disposed gas-insulated transmission line, and a transition member aligned with both the termination and the transmission line for interconnecting the transmission line to the termination. Termination support means are utilized for spatially maintaining the termination in its location, and these support means are fixedly secured to the transition member and slidingly supported on a base member. The sliding support compensates for linear thermal expansion of the transmission line while maintaining the support of the termination.

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.