Method and apparatus for making wire nails having radially offset, fully circular heads
AssigneeIllinois Tool Works Inc.
InventorsRobert W. Wright, John Binder, William L. Gabriel
Life of this patent
Estimating the term…
Loading patent…
AssigneeIllinois Tool Works Inc.
InventorsRobert W. Wright, John Binder, William L. Gabriel
Estimating the term…
Nails having radially offset, circular heads are manufactured from a malleable wire. The wire is clamped so that a leading portion extends axially from a clamping mechanism. The extending portion is bent at an acute angle relative to a clamping axis. The extending portion is cut so as to form a pointed end thereon and so as to leave a bent stub extending at such an angle. Such a nail head is formed from the stub, which is pressed by a punch into a cavity defined by the clamping mechanism, and which is deformed when pressed thereinto. The cavity has a fully circular, offset margin. The punch has a face covering the cavity. Once released, the wire is fed axially until a leading portion extends as before. These operations are repeated to form a similar nail in each repetition. A novel apparatus for carrying out these operations is disclosed.
A method for manufacturing nails having elongate shanks and integral heads from a malleable wire, comprising the steps of:
A method for manufacturing nails having elongate shanks and integral heads from a malleable wire, comprising the steps of:
A method for manufacturing nails having elongate shanks and integral heads from a malleable wire, comprising the steps of:
Apparatus of manufacturing nails having elongate shanks and radially offset, fully circular heads from a malleable wire, comprising:
Dependencies are inferred from the claim text.