Portable machine designed for the automatic installation of wire

Details Portable machine designed for the automatic installation of wire Portable machine designed for the automatic installation of wire

1984-06-12

1985-09-24

Larson, Lowell A.

Wireworking

Applying wire

Binder tightening and joining implements

B21F 902

Patent

active

045427739

ABSTRACT:
A method of tying a wire tie about two crossed reinforcing steel sections and a portable machine, used for automatically installing wire ties on the steel reinforcing bars used in concrete building structures. The machine includes a fixed upper stop piece, two lower jaws, a wire feeding device, a wire guide which includes a spiraling channel divided into several complementary sections cut from a number of independent pieces, a hinged pair of tongs, a rotating pair of tongs and a cutting edge. The wire tie holding together two reinforcing steel sections has the general shape of a "figure 8" loop which is bent perpendicularly to its plane, both loops of the "figure 8" face each other, the locking twist being located at the center crossing of the "figure 8". This machine may be readily adapted to various dimensions of steel cross-sections.

REFERENCES:
patent: 876573 (1908-01-01), Myers
patent: 2403396 (1946-07-01), Raney
patent: 3391715 (1968-07-01), Thompson
patent: 4252157 (1981-02-01), Ohnishi

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