Patent ID: 6619024
Filing Date: 2003-09-16
Classification: A44C,B21F,B21L

Abstract:
A machine for forming a C-shaped link from a wire having corners in cross section for use in making a jewelry chain comprising:means for feeding said wire in and along a V-shaped groove formed in a surface of a stationary die, said V-shaped groove adapted to accommodate a first corner of said wire; means for cutting said wire to form a predetermined length of said wire in said V-shaped groove, said surface of said die having a concave forming surface between ends of said predetermined length of said wire; said concave forming surface having a shape including a corner to correspond with the first corner of said wire in said V-shaped groove; means comprising a mandrel having a guidance groove matching a second corner of said wire on an opposite side of said wire from said first corner for pushing and bending said wire into said concave forming surface to form said wire into a U-shaped configuration; and means comprising a pair of movable die sections for closing said wire to form a C-shaped link surrounding said mandrel, said movable die sections having die V-shaped grooved surfaces shaped to correspond to said first corner of said wire, thereby forming a C-shaped link of said wire in which said second corner forms an inner circumference of said C-shaped link and said first corner forms an outer circumference of said C-shaped link.