Abstract: Disclosed herein is a power generating apparatus for extracting energy from flowing water. The apparatus comprises a buoyancy vessel, and a turbine assembly coupled to the buoyancy vessel which comprises a turbine rotor mounted to a nacelle, and a support structure. The turbine assembly is pivotally moveable between a first position and a second position. When the power generating apparatus is floating on a body of water, in the first position the nacelle is fully submerged below the water surface; and in the second position at least a part of the nacelle projects above the water surface. Movement of the turbine assembly from the first position to the second position is buoyancy assisted, for example by providing the turbine assembly with positive buoyancy or selectively increasing its buoyancy.

Abstract: Disclosed herein is a power generating apparatus for extracting energy from flowing water. The apparatus comprises a buoyancy vessel, and a turbine assembly coupled to the buoyancy vessel which comprises a turbine rotor mounted to a nacelle, and a support structure. The turbine assembly is pivotally moveable between a first position and a second position. When the power generating apparatus is floating on a body of water, in the first position the nacelle is fully submerged below the water surface; and in the second position at least a part of the nacelle projects above the water surface. Movement of the turbine assembly from the first position to the second position is buoyancy assisted, for example by providing the turbine assembly with positive buoyancy or selectively increasing its buoyancy.

Abstract: Disclosed herein is a power generating apparatus for extracting energy from flowing water. The apparatus comprises a buoyancy vessel, and a turbine assembly coupled to the buoyancy vessel which comprises a turbine rotor mounted to a nacelle, and a support structure. The turbine assembly is pivotally moveable between a first position and a second position. When the power generating apparatus is floating on a body of water, in the first position the nacelle is fully submerged below the water surface; and in the second position at least a part of the nacelle projects above the water surface. Movement of the turbine assembly from the first position to the second position is buoyancy assisted, for example by providing the turbine assembly with positive buoyancy or selectively increasing its buoyancy.

Abstract: Disclosed herein is a power generating apparatus for extracting energy from flowing water. The apparatus comprises a buoyancy vessel, and a turbine assembly coupled to the buoyancy vessel which comprises a turbine rotor mounted to a nacelle, and a support structure. The turbine assembly is pivotally moveable between a first position and a second position. When the power generating apparatus is floating on a body of water, in the first position the nacelle is fully submerged below the water surface; and in the second position at least a part of the nacelle projects above the water surface. Movement of the turbine assembly from the first position to the second position is buoyancy assisted, for example by providing the turbine assembly with positive buoyancy or selectively increasing its buoyancy.

Abstract: Aspects of this disclosure describe a multi-pass printer having a photoreceptor device mounted on an axis, a developer that is arranged adjacent to the photoreceptor device and is movable between a first position and a second position, and a camming mechanism mounted on the axis that acts upon the developer to urge the developer between the first and second positions. The camming mechanism can further include a camming disc that is mounted to rotate about the axis. The camming disc can also have an outer periphery edge having a first portion defined by a first radius and a second portion defined by a second radius. The camming mechanism can also have a developer roll spacing cam having an effective radius that maintains a spacing between the developer and the photoreceptor device.

Abstract: Aspects of this disclosure describe a multi-pass printer having a photoreceptor device mounted on an axis, a developer that is arranged adjacent to the photoreceptor device and is moving between a first portion and a second position, and a camming mechanism mounted on the axis that acts upon the developer to urge the developer between the firs and second positions. The camming mechanism can further include a camming disc that is mounted to rotate about the axis. The camming disc can also have an outer periphery edge having a first portion defined by a first radius and a second portion defined by a second radius. The camming mechanism can also have a developer roll spacing cam having an effective radius that maintains a spacing between the developer and the photoreceptor drum.