Wire spring-manufacturing apparatus

Details Wire spring-manufacturing apparatus Wire spring-manufacturing apparatus

1974-10-25

1976-11-23

Lanham, C. W.

Wireworking

Article making or forming

Electric lamp or electric space discharge device electrode

140103, 140105, B21F 300, B21F 3500, B21F 4500

Patent

active

039931064

ABSTRACT:
A wire spring-manufacturing apparatus which comprises a wire feeder; a device for clamping a straight wire of prescribed length delivered from the wire feeder substantially at the center and intermittently rotating said wire about its axis; and a pair of wire-bending devices so disposed as to intermittently approach each other toward the wire-rotating device relative to the rotation of said wire, thereby successively bending both end portions of said wire to form spring legs.

REFERENCES:
patent: 904563 (1908-11-01), Rau
patent: 2261878 (1941-11-01), Hathaway
patent: 2770262 (1956-11-01), Gauci
patent: 3195583 (1965-07-01), Jones
patent: 3196906 (1965-07-01), Sjobohm et al.
patent: 3227195 (1966-01-01), Stegmann
patent: 3493016 (1970-02-01), Ott
patent: 3556166 (1971-01-01), Whitney
patent: 3672410 (1972-06-01), Scheckel
patent: 3872896 (1975-03-01), Yoshimura
patent: R27021 (1971-01-01), Ott

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