Abstract: S-shaped hooks are disclosed that include an upper portion, a central inclined portion, and a lower portion. The central inclined portion is disposed between and joins the upper portion and the lower portion. The upper portion may include a generally horizontal section having a generally horizontal lower support surface. The generally horizontal lower support surface may include a recessed arcuate surface that may be generally centered on the generally horizontal lower support surface. The upper portion may include a retaining section extending downwardly from a distal end of the generally horizontal section. The lower portion may define a hook section. The lower portion may include one or any number of hooks for holding various items. The generally horizontal lower support surface may rest on a flat support surface, such as a section of angle iron, square tubing or flat bar. The recessed arcuate surface may rest on a circular surface.

Abstract: S-shaped hooks are disclosed that include an upper portion, a central inclined portion, and a lower portion. The central inclined portion is disposed between and joins the upper portion and the lower portion. The upper portion may include a generally horizontal section having a generally horizontal lower support surface. The generally horizontal lower support surface may include a recessed arcuate surface that may be generally centered on the generally horizontal lower support surface. The upper portion may include a retaining section extending downwardly from a distal end of the generally horizontal section. The lower portion may define a hook section. The lower portion may include one or any number of hooks for holding various items. The generally horizontal lower support surface may rest on a flat support surface, such as a section of angle iron, square tubing or flat bar. The recessed arcuate surface may rest on a circular surface.

Abstract: A universal swing hinge assembly and gravity-closing gate assembly can be attached to a guardrail on either side of a guardrail opening. A hinge pin can be disposed through the universal swing hinge assembly and the gravity-closing gate for attaching the gravity-closing gate thereto. The universal swing hinge assembly can have a C-configuration that allows the gravity-closing gate to swing open in either direction from a lowest neutral position. A recess of the universal swing hinge assembly can have an angled hinge face that opens towards the guardrail opening. In operation, the angled hinge face can cause the gravity-closing gate to rise from the lowest neutral position when the gravity-closing gate is opening, and the angled hinge face can cause the gravity-closing gate to return to the lowest neutral position when closing.

Abstract: A universal swing hinge assembly for a gravity-closing gate can be attached to a guardrail on either side of a guardrail opening. A hinge pin can be disposed through the universal swing hinge assembly and gravity-closing gate for attaching the gravity-closing gate thereto. The universal swing hinge assembly can have a C-configuration that allows the gravity-closing gate to swing open in either direction from a lowest neutral position. A recess of the universal swing hinge assembly can have an angled hinge face that opens towards the guardrail opening. In operation, the angled hinge face can cause the gravity-closing gate to rise from the lowest neutral position when the gravity-closing gate is opening, and the angled hinge face can cause the gravity-closing gate to return to the lowest neutral position when closing.