A chain fastening assembly includes a fastener that has a first loop and a second loop. The first loop has a clevis that is attached to a chain being releasably fastened to the first loop. Additionally, the first loop has a diameter that is sufficient to have a chain link passed therethrough regardless of the orientation of the chain link. The second loop has an inside diameter being sufficient to have a chain link passed therethrough when the chain link is oriented to lie on a vertical plane. Thus, the chain link can be passed into the second loop. Moreover, the second loop has an inside diameter being insufficient to allow the chain link to pass therethrough when the chain link is oriented to lie on a horizontal plane. In this way the fastener retains the chain in a closed loop for towing or the like.

A chain master link tool includes a first lever and a second lever pivotally and releasably coupled together. Each of the first and second levers include a first working portions and a second working portion. The first and second levers are pivotal to an extended position in which the first working portions face oppositely and are disposed apart and cooperatively delimit a connection space therebetween for connection of a master link with a roller chain assembly and the second working portions face oppositely and are disposed apart and cooperatively delimit a removal space therebetween for removal of the master link from the roller chain assembly respectively.

A bicycle-chain outer link plate comprises a first outer-link end portion, a second outer-link end portion, and a first outer-link intermediate portion. The first outer-link end portion comprises a first outer-link opening and a first outer-link end outermost edge. The second outer-link end portion comprises a second outer-link opening and a second outer-link end outermost edge. The first outer-link intermediate portion comprises a first outer-link intermediate outermost edge and a first additional outer-link intermediate outermost edge. The first outer-link intermediate portion has a first distance defined in an axial direction on a first outer-link longitudinal axis. The first outer-link intermediate outermost edge has a second distance defined in the axial direction. The first outer-link end outermost edge has a third distance defined in the axial direction. The first distance is larger than the second distance and the third distance. The second distance is larger than the third distance.

A vertical or block chain connector for linking between two closed chain links includes a lower element and an upper element configured to engage with the lower element to form the chain connector in an assembled condition. In use the lower element is disposed vertically below the upper element in the assembled connector. The upper element is a sliding fit with the lower element and the direction of the sliding connection is in a straight line perpendicular to the longitudinal axis of the connector and in a plane which is parallel to the horizontal axis when the connector is vertically oriented in use.

A vertical or block chain connector for linking between two closed chain links includes a lower element and an upper element configured to engage with the lower element to form the chain connector in an assembled condition. In use the lower element is disposed vertically below the upper element in the assembled connector. The upper element is a sliding fit with the lower element and the direction of the sliding connection is in a straight line perpendicular to the longitudinal axis of the connector and in a plane which is parallel to the horizontal axis when the connector is vertically oriented in use.

A mooring apparatus (50) comprising a guide portion (55) for guiding a portion of a first mooring line (60), an arrangement (65) for connecting or coupling the apparatus (50) to a second mooring line (70), and a lock (75) or lock means. The guide portion (55) is moveably connected to the arrangement, and the lock is connected to, attached to or provided on the arrangement. A system (250) for tensioning a mooring line, the system comprising the mooring apparatus (50) and the first mooring line (60) and/or the second mooring line (70). A method of tensioning a mooring line, wherein the method comprises providing the system for tensioning a mooring line, and the method further comprises applying a pulling force to a first portion of a first mooring line (60) in a direction away from the apparatus (50).

A mooring apparatus (50) comprising a guide portion (55) for guiding a portion of a first mooring line (60), an arrangement (65) for connecting or coupling the apparatus (50) to a second mooring line (70), and a lock (75) or lock means. The guide portion (55) is moveably connected to the arrangement, and the lock is connected to, attached to or provided on the arrangement. A system (250) for tensioning a mooring line, the system comprising the mooring apparatus (50) and the first mooring line (60) and/or the second mooring line (70). A method of tensioning a mooring line, wherein the method comprises providing the system for tensioning a mooring line, and the method further comprises applying a pulling force to a first portion of a first mooring line (60) in a direction away from the apparatus (50).

A hose connector is disclosed that provides a magnetized connection of hoses, tubes, cables, ducts, pipes, twine, cord and/or rope creating a continuation in length for versatile and extended flow for, but not limited to, watering needs eliminating conventional connector threads currently requiring multiple turns to release or attach or existing pronged coupling requiring a degree of hand agility and strength. Thereby the disclosed matter provides the means for a fast, single motion attachment or twisting detachment of, but not limited to hose, tube, cable, duct, pipe, twine, cord and/or rope ends without requiring the hand strength or precision that some conventional hose, tube, cable, duct, twine, cord, and/or rope connectors may require. There may be any combination of connecting the ends of hoses, tubes, cables, ducts, pipes, twines, cords, and/or ropes. In some scenarios, flow is not required.

A hose connector is disclosed that provides a magnetized connection of hoses, tubes, cables, ducts, pipes, twine, cord and/or rope creating a continuation in length for versatile and extended flow for, but not limited to, watering needs eliminating conventional connector threads currently requiring multiple turns to release or attach or existing pronged coupling requiring a degree of hand agility and strength. Thereby the disclosed matter provides the means for a fast, single motion attachment or twisting detachment of, but not limited to hose, tube, cable, duct, pipe, twine, cord and/or rope ends without requiring the hand strength or precision that some conventional hose, tube, cable, duct, twine, cord, and/or rope connectors may require. There may be any combination of connecting the ends of hoses, tubes, cables, ducts, pipes, twines, cords, and/or ropes. In some scenarios, flow is not required.

A main body provided with a pocket for accommodating a first chain link of another chain, and a lock lever which is capable of switching between a locked state and an unlocked state by pivoting, and which restricts disengagement of the first chain link from the pocket in the locked state, and allows the first chain link to disengage from the pocket in the unlocked state, which is resisted by an urging force of an urging member, wherein the lock lever is provided with a locking piece which projects from a pivot point toward the pocket side, and the locking piece projects toward a position in which movement of a second chain link in an escaping direction is restricted, a first operating piece extending to the side of the pivot point on which one chain is coupled, and a second operating piece extending to the opposite side.