Abstract: A method of manufacturing a coil support member in which a thermosetting or thermoplastic material is introduced into a mold cavity and hardened, wherein one or more components are positioned within the mold cavity during the manufacturing process before the thermosetting or thermoplastic material is introduced, the components are then embedded in the thermosetting or thermoplastic material and form an integral part of the coil support member, and one or more functional filler materials are added to the thermosetting or thermoplastic material to improve the thermal matching between the integral components and the thermosetting or thermoplastic material.

Abstract: A mechanical assembly such as a torque transfer strut for a rotating superconducting machine. The torque transfer strut includes a composite tube having a first end received in a clamping fitting, which may include an end housing or lug, a clamping wedge screwed onto a threaded end housing, and an annular clamping member applying a radial clamping force to the first end of the composite tube at ambient temperature. When cooled, shrinkage of the end housing in the axial direction causes the annular clamping member to maintain or increase radial clamping force, causing the clamping wedge to apply increasing radial force to an inner member deflecting outwardly a plurality of axial fingers. The first end of the composite tube remains clamped between the inner member and an outer member, together defining an annular channel receiving the first end of the composite tube.

Abstract: A method of manufacturing a coil support member in which a thermosetting or thermoplastic material is introduced into a mould cavity and hardened, wherein one or more components are positioned within the mould cavity during the manufacturing process before the thermosetting or thermoplastic material is introduced, the components are then embedded in the thermosetting or thermoplastic material and form an integral part of the coil support member, and one or more functional filler materials are added to the thermosetting or thermoplastic material to improve the thermal matching between the integral components and the thermosetting or thermoplastic material.

Abstract: A mechanical assembly such as a torque transfer strut for a rotating superconducting machine. The torque transfer strut includes a composite tube having a first end received in a clamping fitting, which may include an end housing or lug, a clamping wedge screwed onto a threaded end housing, and an annular clamping member applying a radial clamping force to the first end of the composite tube at ambient temperature. When cooled, shrinkage of the end housing in the axial direction causes the annular clamping member to maintain or increase radial clamping force, causing the clamping wedge to apply increasing radial force to an inner member deflecting outwardly a plurality of axial fingers. The first end of the composite tube remains clamped between the inner member and an outer member, together defining an annular channel receiving the first end of the composite tube.

Abstract: The method includes the following steps—introducing a low amplitude air pressure transient into the drainage and vent system of a building in order to propagate a pressure wave from a fitting (6) into a stack (1) and the network of the drainage system;—recording the passage of the transient by use of an air pressure transducer (7) located near the fitting (6) or introduction area of the transient;—establishing a pressure versus time signature recorded by the pressure transducer (7) and sending those signals to a central data acquisition system;—the pressure transient is propagated throughout the network at an acoustic velocity and is reflected by each and every pipe termination of the network so as to establish a characteristic reflection coefficient for each pipe termination; —the characteristic reflection coefficient is compared with testing results performed initially in a perfect network with no dry trap defects or leakages and in case a different signature is of the pressure trace is recorded, the point

Abstract: The method includes the following steps—introducing a low amplitude air pressure transient into the drainage and vent system of a building in order to propagate a pressure wave from a fitting (6) into a stack (1) and the network of the drainage system; —recording the passage of the transient by use of an air pressure transducer (7) located near the fitting (6) or introduction area of the transient; —establishing a pressure versus time signature recorded by the pressure transducer (7) and sending those signals to a central data acquisition system; —the pressure transient is propagated throughout the network at an acoustic velocity and is reflected by each and every pipe termination of the network so as to establish a characteristic reflection coefficient for each pipe termination; —the characteristic reflection coefficient is compared with testing results performed initially in a perfect network with no dry trap defects or leakages and in case a different signature is of the pressure trace is recorded, the poi

Abstract: A drainage and ventilation system for a building is provided which includes two or more stacks which communicate fluid therein. The stacks are connected to a sewer for discharging liquid thereto, with at least one of the stacks having a discharge source for delivering liquid to a wet stack portion of that stack. A trap is positioned between the wet stack portion and the discharge source for inhibiting the passage of gas therethrough. The stacks are interconnected at an upper end thereof by a connecting member such as a connecting pipe or manifold, whereby air may be communicated between the stacks. An air admittance valve and a positive air pressure attenuation device are located above the connecting member, whereby air may be introduced into the stacks to compensate for entrained air moving with the liquid into the sewer, and air may be accumulated during increased pressure events, both helping to preserve trap seal integrity without releasing foul air into the surrounding environment.

Abstract: The positive air pressure attenuation device (1) for use in drainage systems in buildings includes a housing (3), connected to the system, to which a flexible reservoir (10) is secured, the flexible reservoir (10) being operable on a positive air pressure transient within the drainage system, wherein both the housing (3) and the flexible reservoir (10) are contained within an external casing (2).

Abstract: The pressure relief device (1) for use in drainage systems in buildings comprises a housing (3), connected to the system, to which a flexible reservoir (10) is secured, the flexible reservoir (10) being operable on a positive air pressure transient within drainage system, wherein both the housing (3) and the flexible reservoir (10) are contained within an external casing (2).