Apparatus for forming a wire nail

Details Apparatus for forming a wire nail Apparatus for forming a wire nail

1991-07-05

1992-10-13

Larson, Lowell A.

Threaded, headed fastener, or washer making: process and apparat

Apparatus for making headed fastener, e.g., nail, rivet, etc.

Wire nail making

470121, 470146, 470 40, B21G 300

Patent

active

051546701

ABSTRACT:
A wire nail with a head having a circumferential edge conforming to a complete circle and disposed in a radially offset relationship with respect to a shank. A flat surface on the shank provides a datum indicating where the shank is located. A flat surface on the shank provides a datum for orienting such nail and similar nails. In some embodiments, a tangent plane defined by means of a lower or underside portion of the head is oriented at an acute angle (75.degree. to 85.degree.) relative to the shank. In a strip of such (collated) nails, the flat surfaces defined upon the shanks define an open channel, which coacts with a rib integrally provided upon one wall of a nail-feeding mechanism. In a nail-making machine, two gripping members defining an annular recess and a punch are used to form such a nail from a wire of a malleable metal.

REFERENCES:
patent: 2761157 (1956-09-01), Chism
patent: 3095588 (1963-07-01), Haubold
patent: 3109187 (1963-11-01), Pirc
patent: 3234572 (1966-02-01), Roser
patent: 3359582 (1967-12-01), Powers

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