Sequential variable pitch coiler

Details Sequential variable pitch coiler Sequential variable pitch coiler

1985-02-07

1986-02-11

Combs, E. Michael

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

72143, 72145, B21F 304

Patent

active

045692165

ABSTRACT:
A wire coiling machine for pattern forming resistance wire coils with controlled spacing of the turns, one of the two forming rolls being axially shiftable relative to the other by an actuator motor, the coiling rolls each having a surface configuration specially grooved to retain the coiling wire during axial shifting of the roll, but still allowing escape of the wire as it is formed into a coil.

REFERENCES:
patent: 432741 (1890-07-01), Spuhl
patent: 1930329 (1933-10-01), Vinar
patent: 2371782 (1945-03-01), Sirp
patent: 2650638 (1953-09-01), Johnson et al.
patent: 3007510 (1961-11-01), De Prado
patent: 3401557 (1968-09-01), Platt
patent: 4205543 (1980-06-01), Wright
patent: 4208896 (1980-06-01), Platt
patent: 4258561 (1981-03-01), Platt

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