A thimble apparatus for use with a rope has a thimble eye formed as a generally U-shaped shackle defining a center aperture therein with arms on opposing sides of the aperture. The thimble eye has an outer surface, a front face, and a rear face. A groove is formed within the front face of the shackle generally in the shape of a U and has a width. A rope seat is formed within the shackle beneath the groove proximal to the rear face and has a diameter larger than the width of the groove. The groove forms a passage to the rope seat from the front face along the length of the groove. A base connects to ends of the arms of the shackle closing the aperture. The base defines a channel formed as an open-ended groove through the base such that in use the channel permits a rope to extend from either one of adjacent sides of the base to position the thimble apparatus between first and second positions.

The system may be a process and a device that allows for safety in swinging on a swing at a park, playground or swing set. The process may include fixing a chain, hook/connector and an anchor into a single chain assembly. The chain assembly may be dipped or submerged in a polymer coating and allowed to dry, forming a continuous coating over the chain assembly. The chain assembly may be secured to a swing seat using brackets to engage the anchor portion of the chain assembly. The polymer coating may partially or entirely coat the chain assembly while still allowing manipulation and deformation of the chain assembly. The polymer coating may provide easier gripping and safer swinging.

The system may be a process and a device that allows for safety in swinging on a swing at a park, playground or swing set. The process may include fixing a chain, hook/connector and an anchor into a single chain assembly. The chain assembly may be dipped or submerged in a polymer coating and allowed to dry, forming a continuous coating over the chain assembly. The chain assembly may be secured to a swing seat using brackets to engage the anchor portion of the chain assembly. The polymer coating may partially or entirely coat the chain assembly while still allowing manipulation and deformation of the chain assembly. The polymer coating may provide easier gripping and safer swinging.

A shortening hook with a coupling connection for shortening sling chains in hangers, having a hook body which comprises an eyelet at the top for coupling to a suspension ring and at the bottom a coupling connection with a coupling slot which is delimited by two parallel side wings and is downwardly open for the suspension of a chain and in its central region comprises a hooking-in region, which realizes an upwardly open, rectilinearly extending shortening slot and on which a chain, which is coupled to the coupling connection, is hookable by way of its free end region. In each case, only a coupling slot and a shortening slot are realized on the hook body and, when the shortening hook is seen in side view, are mounted offset laterally with respect to one another.

A shortening hook with a coupling connection for shortening sling chains in hangers, having a hook body which comprises an eyelet at the top for coupling to a suspension ring and at the bottom a coupling connection with a coupling slot which is delimited by two parallel side wings and is downwardly open for the suspension of a chain and in its central region comprises a hooking-in region, which realizes an upwardly open, rectilinearly extending shortening slot and on which a chain, which is coupled to the coupling connection, is hookable by way of its free end region. In each case, only a coupling slot and a shortening slot are realized on the hook body and, when the shortening hook is seen in side view, are mounted offset laterally with respect to one another.

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 & 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 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.

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 & 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 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.

The system may be a process and a device that allows for safety in swinging on a swing at a park, playground or swing set. The process may include fixing a chain, hook/connector and an anchor into a single chain assembly. The chain assembly may be dipped or submerged in a polymer coating and allowed to dry, forming a continuous coating over the chain assembly. The chain assembly may be secured to a swing seat using brackets to engage the anchor portion of the chain assembly. The polymer coating may partially or entirely coat the chain assembly while still allowing manipulation and deformation of the chain assembly. The polymer coating may provide easier gripping and safer swinging.

The system may be a process and a device that allows for safety in swinging on a swing at a park, playground or swing set. The process may include fixing a chain, hook/connector and an anchor into a single chain assembly. The chain assembly may be dipped or submerged in a polymer coating and allowed to dry, forming a continuous coating over the chain assembly. The chain assembly may be secured to a swing seat using brackets to engage the anchor portion of the chain assembly. The polymer coating may partially or entirely coat the chain assembly while still allowing manipulation and deformation of the chain assembly. The polymer coating may provide easier gripping and safer swinging.

A shortening hook with a coupling connection for shortening sling chains in hangers, having a hook body which comprises an eyelet at the top for coupling to a suspension ring and at the bottom a coupling connection with a coupling slot which is delimited by two parallel side wings and is downwardly open for the suspension of a chain and in its central region comprises a hooking-in region, which realizes an upwardly open, rectilinearly extending shortening slot and on which a chain, which is coupled to the coupling connection, is hookable by way of its free end region. In each case, only a coupling slot and a shortening slot are realized on the hook body and, when the shortening hook is seen in side view, are mounted offset laterally with respect to one another.