초록 ▼

In a beam clamp having a pair of arms suspended from a lifting ring, the ring is formed of two parts －a rod portion, and a plate portion with notched ends receiving corresponding ends of the rod portion and welded thereto. The rod portion, which has circular cross-section, is bent to form a circular

In a beam clamp having a pair of arms suspended from a lifting ring, the ring is formed of two parts －a rod portion, and a plate portion with notched ends receiving corresponding ends of the rod portion and welded thereto. The rod portion, which has circular cross-section, is bent to form a circular arc and is inserted through holes in the arms. The plate portion, which has rectangular cross-section, follows a different curvature to render the ring self-centering when suspended from a chain, the ends of the plate portion being too large to enter the holes in the arms. The arms have replaceable jaws which are fixed to the arms by screws.

대표청구항 ▼

A beam clamp comprising a ring and a pair of arms, said ring consisting entirely of a plate portion and a rod portion, sAid rod portion having a substantially uniform circular cross-section from end to end and said plate portion having a rectangular corss-section, corresponding ends of said portions

A beam clamp comprising a ring and a pair of arms, said ring consisting entirely of a plate portion and a rod portion, sAid rod portion having a substantially uniform circular cross-section from end to end and said plate portion having a rectangular corss-section, corresponding ends of said portions being welded together to form the ring, each arm having an opening therethrough receiving the rod portion of said ring and having a slot containing spaced jaws adapted to engage the flange of a beam.