Device for bending the ends of metallic binding spirals

Details Device for bending the ends of metallic binding spirals Device for bending the ends of metallic binding spirals

1994-05-12

1996-03-12

Larson, Lowell A.

Wireworking

Article making or forming

Electric lamp or electric space discharge device electrode

412 39, B21F 4516

Patent

active

054978114

ABSTRACT:
A device for bending the ends (17) which result from cutting to size a metallic binding spiral (9) includes a contrasting member (4) provided at the front with two pairs (12, 12') of flat lugs, mutually parallel and orthogonal to the axis of the spiral (9), suitable to securely retain the roots (16) of the two prongs (14) of the spiral (9) between which the cut has been performed, and a pushing member (7) provided at the front with a central tooth (13) radiused to the body of the pusher (7) and also orthogonal to the axis of the spiral (9), suitable to bend the ends (17) parallelly to the prongs (14) by interacting with said contrast (4). The contrast (4) and the pusher (7) move along substantially orthogonal axes under the action of double-acting pneumatic jacks.

REFERENCES:
patent: 2065505 (1936-12-01), Bidwell
patent: 2730142 (1956-01-01), Berberich
patent: 3667076 (1972-06-01), Aglaghanian et al.

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