Wire twisting and cutting tool

Details Wire twisting and cutting tool Wire twisting and cutting tool

1994-12-20

1996-03-26

Larson, Lowell A.

Wireworking

Fabric making

Implements

140 57, 140119, B21F 1504

Patent

active

055012515

ABSTRACT:
A frame containing a wire supply coil and a clamping and cutting shears actuated by toggle links connecting the arms of the shears to the frame. The pivot of the shears is attached to one end of a piston, the other end of which slides in a cylinder in the frame. A compression spring between the piston and cylinder tends to bias the piston away from the frame thereby applying a wire clamping force to the jaws of the shears through the action of the toggle links. A drag strut is provided to oppose the biasing force and open the jaws of the shears. The rotating shaft of a commercially available rachet spring return twister is attached to the frame. This twister converts a linear pulling motion into rotary motion thereby twisting the wire and making the fastener. Further pulling on the twister shears the wires.

REFERENCES:
patent: 861915 (1907-07-01), Struss
patent: 1209434 (1916-12-01), Hayden
patent: 3091264 (1963-05-01), Stanford
patent: 3593759 (1971-07-01), Wooge
patent: 4448225 (1984-05-01), Schmidt

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