Abstract: An engagement part of a tool such as a hydraulic wrench (10), the engagement part (1) such as a ratchet link being arranged to engage a workpiece and a power head (11), the engagement part (1) being arranged to convert movement generated by the power head (11) into movement of the workpiece, the engagement part (1) comprising a mounting for the power head (4, 14), the mounting (4, 14) comprising a moveable portion moveable (4) from a first position where the power head (11) is fixed relative to the engagement part (1) and a second position where the power head (11) can move relative to the engagement part (1), the moveable portion (4) comprising a pin having a length and slidable along its length in a bore (17) in the engagement part (1) and a friction lock (2, 3) comprising a compressible member (3) and a compressing member (2) arranged to compress the compressible member (3), the compressible member (3) being arranged such that it expands in at least one extent on compression by the compressing member (2) s

Abstract: A hydraulic torque wrench (10) comprising: a housing (12); a drive pawl (1), pivotally mounted in the housing (12); and a piston rod (2), configured to be driven and connected to the drive pawl (1) in order to drive the drive pawl (1). A ratchet gear (3), configured to be driven for rotation by the drive pawl (1). A spring (4), configured to bias the drive pawl (1) into engagement with the ratchet gear (3). A travel limiter arranged to limit a pivoting travel of the drive pawl (1) away from engagement with the ratchet gear (3). By limiting the travel of the drive pawl (1), we remove the risk of over-extension of the spring (3).

Abstract: A drive (11) assembly (10) of a torque wrench (1), the drive (11) assembly (10) comprising: a ratchet (14), having internal splines (13a; 14a); a drive (11), comprising a shaft (11b) arranged to be removably received within the ratchet (14), the shaft (11b) passing through the ratchet (14) and having external splines (11a) arranged to mesh with the splines of the ratchet (14) such that rotation of the ratchet (14) rotates the shaft (11b); and a drive sleeve (13), arranged to be seated on the ratchet (14) and having internal splines (13a; 14a) matching the internal splines (13a; 14a) of the ratchet (14). The drive sleeve (13) and ratchet (14) comprise cooperating features arranged to prevent relative rotation of the drive sleeve (13) and ratchet (14) when the drive sleeve (13) is seated on the ratchet (14). Improvement of the case of use of the tool is enabled.

Abstract: A hydraulic torque wrench (10), comprising: a head (11), having an input for pressurised hydraulic fluid; a rotatable connector, for connecting to an item to be rotated by the hydraulic torque wrench (10); and a drive mechanism (12), driven by hydraulic fluid introduced at the input and tending to rotate the rotatable connection. A reaction arm (1) mounted on the head (11) through a mounting (16) which selectively allows rotational motion of the reaction arm (1) relative to the head (11) about an axis, the reaction arm (1) arranged to react against a surface when the drive mechanism (12) rotates the rotatable connection.

Abstract: A hydraulic torque wrench (10), comprising: an input, for pressurised hydraulic fluid; a drive connector (14); a drive connector (13), driven by hydraulic fluid introduced at the input and arranged to drive the drive connector (14) to rotate; a drive member (1) for connecting to an item to be rotated by the hydraulic torque wrench (10), the drive member (1) comprising: a drive member (16), which engages the drive connector (14) so as to be driven by the drive connector (14) and a second part (18) arranged to be coupled to the item to be rotated. In which the drive member (1) comprises a retention mechanism which has two states: a first state, in which it prevents removal of the drive member (1) from the drive connector (14); and, a second, state in which it permits removal of the drive member (1) from the drive connector (14). In which the retention mechanism remains connected to the drive member (1) in the first state and in the second state.

Abstract: A stereo audio output signal is obtained based on position information indicative of a position of a participant of a teleconference relative to a plurality of audio output devices, wherein both the participant and the plurality of audio devices are located within a teleconferencing space. Playback of the stereo audio output signal is caused at the plurality of audio output devices located within the teleconferencing space. An audio input signal captured at an audio capture device located within the teleconferencing space is received, wherein at least a portion of the audio input signal comprises audio caused by playback of the stereo audio output signal by the plurality of audio output devices. The position information is used to perform an Acoustic Echo Cancellation (AEC) process to the at least the portion of the audio input signal.

Abstract: An engagement part of a tool such as a hydraulic wrench (10), the engagement part (1) such as a ratchet link being arranged to engage a workpiece and a power head (11), the engagement part (1) being arranged to convert movement generated by the power head (11) into movement of the workpiece, the engagement part (1) comprising a mounting for the power head (4, 14), the mounting (4, 14) comprising a moveable portion moveable (4) from a first position where the power head (11) is fixed relative to the engagement part (1) and a second position where the power head (11) can move relative to the engagement part (1), the moveable portion (4) comprising a pin having a length and slidable along its length in a bore (17) in the engagement part (1) and a friction lock (2, 3) comprising a compressible member (3) and a compressing member (2) arranged to compress the compressible member (3), the compressible member (3) being arranged such that it expands in at least one extent on compression by the compressing member (2) s

Abstract: Various embodiments disclosed relate to an implant. The implant includes a substrate. The implant further includes a monolithic layer comprising a biocompatible metallic material, having at least one of an amorphous and a crystalline microstructure contacting the substrate.

Abstract: Various embodiments disclosed relate to an implant. The implant includes a substrate. The implant further includes a monolithic layer comprising a biocompatible metallic material, having at least one of an amorphous and a crystalline microstructure contacting the substrate.

Abstract: Example stands for supporting a component, such as a rotor blade, are described herein. An example stand described herein includes a blade support having an opening extending from an edge of the blade support towards a center of the blade support. The opening is to receive a rotor blade of an aircraft, for example. The example stand also includes a base to support the blade support above a supporting surface. The blade support is rotatably coupled to the base about a horizontal axis perpendicular to a central axis of the blade support such that the blade support can tilt the rotor blade relative to the supporting surface.

Abstract: Example stands for supporting a component, such as a rotor blade, are described herein. An example stand described herein includes a blade support having an opening extending from an edge of the blade support towards a center of the blade support. The opening is to receive a rotor blade of an aircraft, for example. The example stand also includes a base to support the blade support above a supporting surface. The blade support is rotatably coupled to the base about a horizontal axis perpendicular to a central axis of the blade support such that the blade support can tilt the rotor blade relative to the supporting surface.

Abstract: A phased array ultrasonic probe may be mounted to a component to be inspected for wall thickness on an apparatus that includes a split ring adapted to be magnetically held in place on the component. In particular, the probe may be mounted to a carriage connected to the split ring in a manner that allows the carriage to rotate around the split ring while the probe is in operation. Between the probe and the component, a transducer shoe defining, by a flexible membrane, a cavity and an aperture. Conveniently, the construction of the flexible membrane allows wall thickness measurements to be acquired in portions of the component that have complex topography, such as welds. The apparatus is installed on an adaptor assembly for inspection of straight section of pipes. This adaptor assembly is not used in absence of straight section.

Abstract: An enclosure for carrying an adjustable payload. The enclosure is beneficially used on a rotorcraft blade or other similar structure. The enclosure has a first element having a first flange and an upper element. The first element has an upper surface which has a first angle with respect to a lower surface of the first flange in a direction extending from an inboard direction to an outboard direction. The upper element has a lower surface which has a second angle with respect to an upper surface of said upper element in a direction extending from an inboard direction to an outboard direction, the lower surface being in contact with the upper surface of said first element, the second angle being in a direction which is opposite to the direction of said first angle. The first element and the upper element define a cavity for holding a payload.

Abstract: A method and apparatus for reducing a vibratory response in a structure using a tuning object. A selected mass may be identified for the tuning object. A plurality of channels may be formed in a workpiece having a mass greater than the selected mass to form the tuning object having the selected mass. The tuning object may be bonded to the structure using an adhesive bond to reduce the vibratory response of the structure.

Abstract: An apparatus for harvesting electrical power from mechanical energy is described. The apparatus includes: a flux path. The flux path includes: a magnetic material having a magnetic property that is a function of stress on the magnetic material; a first magnetically conductive material proximate the magnetic material; a magnet in the flux path, wherein a magnetomotive force of the magnet causes magnetic flux; and a component configured to transfer changes in load caused by an external source to the magnetic material.

Abstract: An energy harvester generates electrical energy from mechanical energy using changing flux properties in primary and secondary flux paths. An apparatus includes at least two primary flux paths. The primary flux paths include at least one bias flux path configured to exhibit a change in a flux property in response to a change in an external load applied to the bias flux path. The secondary flux path is magnetically coupled to the primary flux paths. The secondary flux path is configured to experience alternating flux directions in response to the change in the flux property of the bias flux path. Electrical energy can be induced in a conductor as a result of the alternating flux direction in the secondary flux path.

Abstract: Systems include buoys, tethers, and power take-off (PTO) modules to generate electrical energy from the mechanical energy of ocean waves.

Abstract: An apparatus harvests electrical power from mechanical energy. The apparatus includes first and second load-bearing structures, a plurality of magnetostrictive elements, and an electrical circuit or coil. The load-bearing structures experience a force from an external source. The magnetostrictive elements are arranged between the load-bearing structures. The load-bearing structures transfer at least a portion of the force to at least one of the magnetostrictive elements. In this way, at least one of the magnetostrictive elements experiences the force transferred from the load-bearing structures. The force on the magnetostrictive element causes a change in magnetic flux of the magnetostrictive element. The electrical circuit or coil is disposed within a vicinity of the magnetostrictive element which experiences the force. The electrical circuit or coil generates electric power in response to the change in the magnetic flux of the magnetostrictive element.

Abstract: A device generates electrical energy from mechanical motion in a downhole environment. The device converts rotary motion into a linear strain in a magnetostrictive material. The device includes a rotor, a magnetostrictive element, and an electrically conductive coil. The rotor rotates within a stator of a drill string. The magnetostrictive element is attached to the rotor by a first ball joint. The magnetostrictive element is configured to experience axial strain in response to rotational movement of the rotor. The magnetostrictive element includes a second ball joint on an end of the magnetostrictive element opposite the first ball joint. The electrically conductive coil is disposed in proximity to the magnetostrictive element. The electrically conductive coil is configured to generate an electrical current in response to a change in flux density of the magnetostrictive element.

Abstract: Embodiments of an apparatus for harvesting electrical power from fluid motion are described. The apparatus includes a magnetostrictive component having an internal pre-stressed magnetostrictive core. A magnetic property of the magnetostrictive core is configured to change with changes in stress within the magnetostrictive core along at least one direction within the magnetostrictive component. Also, forces at least partially due to fluid motion results in changes of stress within the magnetostrictive core and consequently change the magnetic property. The magnetostrictive component is further configured such that the change in the magnetic property will result in a change in the magnetic flux, which can be used to generate electrical power.