Wireworking – Eye forming
Patent
1990-09-19
1991-08-20
Larson, Lowell A.
Wireworking
Eye forming
B21F 106
Patent
active
050405730
ABSTRACT:
Apparatus and method are disclosed for forming a loop in a wire that is particularly suited for attaching a wire to a ceiling suspension bracket and allow free swinging movement of the wire on the bracket. The apparatus includes a wire storage and feed bin, support for each wire during the loop forming, a twist member, a control head that moves the wire to form a bend, a drive that rotates the twist member through a selected number of revolutions to twist the bend to form the loop, coils and a tail in the wire. Surface portions of the control head confine the movement of the wire during the formation of the coils and loop. A control circuit for the drive motor causes the motor to turn only a selected number of revolutions to form a selected number of coils. A final positioning assembly causes the twist member to stop at the same position after each loop forming operation.
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Inventions Unlimited, Inc.
Larson Lowell A.
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