Abstract: An automatic bending apparatus for forming fasteners from metal wire strip, or bar stock includes a removable, axially movable, non-rotatable shaped central mandrel and a relatively rotatable faceplate mounting a bending pin disposed coaxially with the mandrel and independently axially movable relatively thereto. The apparatus includes a pair of shears positioned adjacent the mandrel along the path of movement of the stock and in advance of the mandrel and means for automatically feeding the stock. The invention is characterized in that the mandrel is substantially L-shaped and has a support rod and an arm with a U-shaped groove in the front face thereof through which the stock passes. The groove is dimensioned to closely receive the stock so that the supported portion therein is not deformed or bent during the bending operation and the external portion of the mandrel is shaped to define the curvature of the bent portions of the stock.

Abstract: A method and apparatus for bending bars, wires, metal strips or the like has been developed. The apparatus consists of a feeding device which feeds the material to be formed to a central fork pin which holds the material. A rotating disc is provided with a nib for bending the material. After the material is bent, the feed of the material is reversed so as to ensure that the material will be sheared close to the bend, thereby reducing waste.