Abstract: A chair back height adjustment mechanism comprises a guide having an abutment surface at a lateral side of the guide which extends along an adjustment direction. The chair back height adjustment mechanism comprises an adjusting device supported on the guide so as to be displaceable along the adjustment direction. The adjusting device comprises a carrier, a coupling member which is moveably supported on the carrier, and a bias mechanism. The coupling member has a contact face shaped to abut on the abutment surface of the guide and a slanted face. The bias mechanism is operative to apply a force onto the slanted face to urge the contact face of the coupling member against the abutment surface of the guide.

Abstract: A tilt mechanism for a chair comprises a base, a first support configured to support a chair seat and a second support configured to support a chair back, the second support is pivotably coupled to the base. A coupling mechanism couples the second support to both the base and the first support. The coupling mechanism comprises a pin attached to the first support, a first linear guide slot provided on the base, and a second linear guide slot provided on the second support. The pin is slideably received in both the first linear guide slot and the second linear guide slot. The second linear guide slot slopes upwardly in a forward direction of the tilt mechanism when the tilt mechanism is in a zero-tilt position.

Abstract: The invention provides a tag (10), such as an identity tag, comprising a body (12) having a first securing means (20) and a second securing means (30) provided distal to the first securing means (20), wherein the first securing means (20) comprises a slot (22a) for receipt of at least a portion of a security fastening therethrough. Also provided is a method of attachment of such a tag to a material.

Abstract: A tilt mechanism is configured for adjustment of a tension applied by a chair back. The tilt mechanism includes a base, a back bracket tiltably supported on the base, and a rocker coupled to the back bracket so as to be moveable relative to the back bracket. The rocker has a pivot axis and pivots about the pivot axis when the back bracket tilts relative to the base. An energy storage mechanism is coupled to the rocker to exert a force onto a portion of the rocker. An actuating mechanism is coupled to at least one of the rocker or the energy storage mechanism and is configured to alter a distance between the pivot axis and the portion of the rocker at which the force is exerted onto the rocker, thereby altering a length of a lever arm.

Abstract: A tilt mechanism (10) for a chair comprises a base (11), a first support (12) configured to support a chair seat and a second support (13) configured to support a chair back. The second support (13) is pivotably coupled to the base (11). A first coupling mechanism (41) couples the first support (12) with the base (11) and includes a first pin (40) slideably supported in a first linear guide slot (20). A second coupling mechanism (42) couples the second support (13) with the first support (12) and includes a second pin (44) slideably supported in a second linear guide slot (36). When the second support (13) pivots relative to the base (11), the first pin (40) is caused to be displaced along the first linear guide slot (20) and the second pin (44) is caused to be displaced along the second linear guide slot (36).

Abstract: A tilt mechanism for a chair comprises a base, a first support configured to support a chair seat and a second support configured to support a chair back, the second support is pivotably coupled to the base. A coupling mechanism couples the second support to both the base and the first support. The coupling mechanism comprises a pin attached to the first support, a first linear guide slot provided on the base, and a second linear guide slot provided on the second support. The pin is slideably received in both the first linear guide slot and the second linear guide slot. The second linear guide slot slopes upwardly in a forward direction of the tilt mechanism when the tilt mechanism is in a zero-tilt position.

Abstract: A chair back height adjustment mechanism comprises a guide having an abutment surface at a lateral side of the guide which extends along an adjustment direction. The chair back height adjustment mechanism comprises an adjusting device supported on the guide so as to be displaceable along the adjustment direction. The adjusting device comprises a carrier, a coupling member which is moveably supported on the carrier, and a bias mechanism. The coupling member has a contact face shaped to abut on the abutment surface of the guide and a slanted face. The bias mechanism is operative to apply a force onto the slanted face to urge the contact face of the coupling member against the abutment surface of the guide.

Abstract: The invention comprises a waterborne craft having a hull, board or base, and a fin, keel, centerboard or the like. One or more air conduits exit the hull, board or base at or adjacent at least one side of the fin, keel or centerboard, or exit the fin, keel, or centerboard, excluding the leading edge of the fin, keel or centerboard in use, in a position such that the conduit in use provides or the conduits in use provide air to a position at or adjacent at least one side of the fin, keel or centerboard.

Abstract: A tilt mechanism is configured for adjustment of a tension applied by a chair back. The tilt mechanism includes a base, a back bracket tiltably supported on the base, and a rocker coupled to the back bracket so as to be moveable relative to the back bracket. The rocker has a pivot axis and pivots about the pivot axis when the back bracket tilts relative to the base. An energy storage mechanism is coupled to the rocker to exert a force onto a portion of the rocker. An actuating mechanism is coupled to at least one of the rocker or the energy storage mechanism and is configured to alter a distance between the pivot axis and the portion of the rocker at which the force is exerted onto the rocker, thereby altering a length of a lever arm.

Abstract: The invention provides a tag (10), such as an identity tag, comprising a body (12) having a first securing means (20) and a second securing means (30) provided distal to the first securing means (20), wherein the first securing means (20) comprises a slot (22a) for receipt of at least a portion of a security fastening therethrough. Also provided is a method of attachment of such a tag to a material.

Abstract: A tilt mechanism (10) for a chair comprises a base (11), a first support (12) configured to support a chair seat and a second support (13) configured to support a chair back. The second support (13) is pivotably coupled to the base (11). A first coupling mechanism (41) couples the first support (12) with the base (11) and includes a first pin (40) slideably supported in a first linear guide slot (20). A second coupling mechanism (42) couples the second support (13) with the first support (12) and includes a second pin (44) slideably supported in a second linear guide slot (36). When the second support (13) pivots relative to the base (11), the first pin (40) is caused to be displaced along the first linear guide slot (20) and the second pin (44) is caused to be displaced along the second linear guide slot (36).

Abstract: A rotatable scrub brush having particular application for removing dried residue from a bucket or similar container. The scrub brush includes a shaft, one end of which can be coupled to a conventional drill. The opposite end of the shaft is connected to a hollow bulb having cleaning bristles projecting outwardly therefrom. Openings through the bottom of the hollow bulb communicate with respective water inlet ducts. When the bulb is dipped in water standing in the bucket to be cleaned, the water will flow upwardly through the inlet ducts to be collected inside the bulb. A rotational force generated by the drill is imparted to the bulb by way of the shaft to cause the bulb to spin at high speed. As the spinning bulb is lifted out of the standing water and moved along the sides of the bucket, the water collected at the interior of the bulb will be expelled therefrom through outlet ports in order to moisten the cleaning bristles and the residue on the bucket to be removed by the bristles.

Abstract: The invention comprises a waterborne craft having a hull, board or base, and a fin, keel, centreboard or the like. One or more air conduits exit the hull, board or base at or adjacent at least one side of the fin, keel or centreboard, or exit the fin, keel, or centreboard, excluding the leading edge of the fin, keel or centreboard in use, in a position such that the conduit in use provides or the conduits in use provide air to a position at or adjacent at least one side of the fin, keel or centreboard.

Abstract: Keel or fin (1) for a watercraft such as a surfboard is conventional in shape but comprises major portion (2) fixed to the board by peg (10) and minor, flexible, trailing portion (3) fixed to major portion (2). Minor portion (3) has a more rigid leading edge (16) which slides dovetail fashion onto trailing edge (8, 9) of major portion (2) and is locked in place by grub screw (7). Minor portion (3) has core (11) of rubber allowing it to flex sideways under water pressure. Excessive movement of trailing edge (12) of minor portion (3) is prevented when edge (12) contacts stops (4) positioned on either side on the board. Minor portion (3) may be completely surrounded in an aperture in major portion (2) or may have apertures to which air is fed via ducting.

Abstract: A multi-function hand-operated tool that is compact in size and of light weight so as to be carried and used to perform a variety of different jobs by carpenters, painters, do-it-yourselfers, and the like. The tool includes a nail set to transmit a driving force to the head of a nail to cause the nail to be countersunk in a work surface. An open mouth which is sized to receive the cap on a bottle cooperates with a lip that applies a rotational force to remove the cap from the bottle. A nail extractor having a cavity in which to surround and capture the head of a nail transmits a pulling force to the nail head to cause the nail to be removed from a work surface. A channel having a flush-mounted magnet carries a nail to be positioned in upstanding alignment against a work surface so that the nail can be driven therein. A pair of spaced, outwardly projecting teeth are located between a lid and a can to pry the lid off the can.

Abstract: A rotatable scrub brush having particular application for removing dried residue from a bucket or similar container. The scrub brush includes a shaft, one end of which can be coupled to a conventional drill. The opposite end of the shaft is connected to a hollow bulb having cleaning bristles projecting outwardly therefrom. Openings through the bottom of the hollow bulb communicate with respective water inlet ducts. When the bulb is dipped in water standing in the bucket to be cleaned, the water will flow upwardly through the inlet ducts to be collected inside the bulb. A rotational force generated by the drill is imparted to the bulb by way of the shaft to cause the bulb to spin at high speed. As the spinning bulb is lifted out of the standing water and moved along the sides of the bucket, the water collected at the interior of the bulb will be expelled therefrom through outlet ports in order to moisten the cleaning bristles and the residue on the bucket to be removed by the bristles.

Abstract: A multi-function hand-operated tool that is compact in size and of light weight so as to be carried and used to perform a variety of different jobs by carpenters, painters, do-it-yourselfers, and the like. The tool includes a nail set to transmit a driving force to the head of a nail to cause the nail to be countersunk in a work surface. An open mouth which is sized to receive the cap on a bottle cooperates with a lip that applies a rotational force to remove the cap from the bottle. A nail extractor having a cavity in which to surround and capture the head of a nail transmits a pulling force to the nail head to cause the nail to be removed from a work surface. A channel having a flush-mounted magnet carries a nail to be positioned in upstanding alignment against a work surface so that the nail can be driven therein. A pair of spaced, outwardly projecting teeth are located between a lid and a can to pry the lid off the can.

Abstract: Keel or fin (1) for a watercraft such as a surfboard is conventional in shape but comprises major portion (2) fixed to the board by peg (10) and minor, flexible, trailing portion (3) fixed to major portion (2). Minor portion (3) has a more rigid leading edge (16) which slides dovetail fashion onto trailing edge (8, 9) of major portion (2) and is locked in place by grub screw (7). Minor portion (3) has core (11) of rubber allowing it to flex sideways under water pressure. Excessive movement of trailing edge (12) of minor portion (3) is prevented when edge (12) contacts stops (4) positioned on either side on the board. Minor portion (3) may be completely surrounded in an aperture in major portion (2) or may have apertures to which air is fed via ducting.

Abstract: A method of measuring a load on a surface produced by a contact force. An elastic film or coating is located on a supporting surface to provide an indication of normal and tangential or shear forces applied to the surface. A thickness measurement, corresponding to a normal displacement, and a tangential displacement of the film, corresponding to a shear displacement, is obtained and input to a response function to reconstruct the normal and shear load components of the contact force on the surface. A differential thickness measurement of the film is detected by an optical method in which a luminescent output from a luminophore in the film is measured. A luminescent output from a reference luminophore located below the film is also measured to provide a measurement system independent of the illumination source used to produce the luminescent output.

Abstract: A semi-automated hinge pin removal tool comprises a pistol-shaped, housing main assembly member having a triggered base block subassembly including an acceptance barrel for receiving a door hinge assembly, a handle, and a trigger. A hinge pin head engaging assembly member is located at an open end of the acceptance barrel and includes a retaining positional ring subassembly, a pry blade head block subassembly, and a capture cap subassembly. The pry blade head block subassembly is mounted for axial movement from the acceptance barrel open end, and the pry blade head block subassembly is responsive to actuation of the drive trigger for extending from the acceptance barrel open end and is adapted to be forcibly inserted into a narrow gap intersection region formed between the sloped underside surface of a hinge pin head and the horizontal top surface of a hinge pin barrel enclosure.