Abstract: A subterranean irrigation system (100) has a plurality of fluid conduit (130) for applying a liquid from a source to an area of ground, to which said liquid is to applied while avoiding interference with the above-ground use of such area, wherein the fluid conduits (130) are connected (140; 500) relative to one another and wherein the plurality of fluid conduits (130) comprise a plurality of outlets to effect the distribution of the liquid to the ground area, wherein the plurality of outlets (600;621, 622, 623; 800; 821, 822, 823) are provided at an underside (602, 802) of a nose-shaped spout attachment (600, 800), wherein the spout attachment (600; 800) is attached at the side in the upper half of the fluid conduit (130; 230; 720) and wherein the underside (602; 802) comprises a rounded surface starting tangentially from the outer diameter of the fluid conduit (130; 230; 720) and ends in the nose-shaped free end of the spout attachment (600; 800).

Abstract: A subterranean irrigation system (100) has a plurality of fluid conduit (130) for applying a liquid from a source to an area of ground, to which said liquid is to applied while avoiding interference with the above-ground use of such area, wherein the fluid conduits (130) are connected (140; 500) relative to one another and wherein the plurality of fluid conduits (130) comprise a plurality of outlets to effect the distribution of the liquid to the ground area, wherein the plurality of outlets (600;621, 622, 623; 800; 821, 822, 823) are provided at an underside (602, 802) of a nose-shaped spout attachment (600, 800), wherein the spout attachment (600; 800) is attached at the side in the upper half of the fluid conduit (130; 230; 720) and wherein the underside (602; 802) comprises a rounded surface starting tangentially from the outer diameter of the fluid conduit (130; 230; 720) and ends in the nose-shaped free end of the spout attachment (600; 800).

Abstract: Embodiments of the invention relate to a rotor system, particularly for use in a wind turbine generator system. A support (11) is provided having first and second rotating members (12, 13) coupled thereto, the rotating members being able to rotate about a common axis. One or more flexible blades (14, 15) having at least two ends are provided, one end being mounted on the first rotating member and another end being mounted on the second rotating member, so that they may rotate about the common axis. Actuating means are provided, being arranged to cause the ends of each blade to move closer together by movement of at least one of the rotating members along the common axis. The first and second rotating members are arranged to rotate relative to each other, said rotation allowing the flexible blades to coil around an axis.