Abstract: There is provided a siphon for use in a growth tray comprising at least one inlet, an outlet and a cavity located between the at least one inlet and the outlet, the at least one inlet being in fluid communication with the outlet such that during use fluid may flow from the at least one inlet to the outlet via the cavity, wherein the cavity is configured to retain air within the cavity until liquid is induced to displace it such that liquid surrounding the siphon is drained through the outlet via the cavity and the at least one inlet.

Abstract: There is herein presented an electrical support system for distributing three-phase power, the system comprising a plurality of support sets interconnected by one or more hubs, each support set within the plurality of support sets comprises three conducting elements, each hub of the one or more hubs comprises a plurality of connecting point sets, each connecting point set comprising three connecting points configured to be attached to the three conducting elements of a support set, at least one conducting element within a support set is connected to a hub on at least the first end or second end by a connector, wherein the arrangement of the plurality of support sets within the system is configurable.

Abstract: Herein is provided a connector for providing an electrical connection between a conducting element and a connecting point, the connector comprising a first portion, a contacting element and second portion, the first portion being configured to be reversibly fastened to the second portion to thereby fasten a conducting element by the contacting element between the first portion and second portion.

Abstract: An actuator (10) for use in controlling movement of a component (22) of a seagoing vessel comprises a cylinder (12) for coupling to a vessel hull (14) and an actuator shaft (18). A distal end (20) of the shaft (18) is coupled to the component whose movement is to be controlled and, in use, a control force (Fc) is applied to the shaft (18) to control movement of the shaft (18) from a first position, retracted, position to a second, extended, position. The actuator (10) is compliant in response to an opposing force exceeding a selected force to prevent or mitigate damage to the component (22) and/or the actuator 10 which may otherwise result from the opposing force.

Abstract: An energy converter device includes a reactive hydraulic power transformer (16) for converting periodic and variable hydraulic energy into coherent hydraulic energy. The device may also form a sub-system in energy converter systems for converting kinetic energy, for example from a wave (12), into electricity. The system has a power takeoff (14) including an energy capture device (22) for capturing energy from the wave (12), or other power source, and the power takeoff transfers this captured energy to the transformer (16). An accumulator (18) may be provided for storing and selectively discharging the captured energy to a generator (20) to produce electricity. At least part of the captured energy may be fed back through the transformer (16) to facilitate control over the phase and/or position of the energy capture device (22) relative to the wave (12) or other energy source.

Abstract: An actuator (10) for use in controlling movement of a component (22) of a seagoing vessel comprises a cylinder (12) for coupling to a vessel hull (14) and an actuator shaft (18). A distal end (20) of the shaft (18) is coupled to the component whose movement is to be controlled and, in use, a control force (Fc) is applied to the shaft (18) to control movement of the shaft (18) from a first position, retracted, position to a second, extended, position. The actuator (10) is compliant in response to an opposing force exceeding a selected force to prevent or mitigate damage to the component (22) and/or the actuator 10 which may otherwise result from the opposing force.

Abstract: An energy converter device includes a reactive hydraulic power transformer (16) for converting periodic and variable hydraulic energy into coherent hydraulic energy. The device may also form a sub-system in energy converter systems for converting kinetic energy, for example from a wave (12), into electricity. The system has a power takeoff (14) including an energy capture device (22) for capturing energy from the wave (12), or other power source, and the power takeoff transfers this captured energy to the transformer (16). An accumulator (18) may be provided for storing and selectively discharging the captured energy to a generator (20) to produce electricity. At least part of the captured energy may be fed back through the transformer (16) to facilitate control over the phase and/or position of the energy capture device (22) relative to the wave (12) or other energy source.