Method of and device for manufacturing curved helical springs

Details Method of and device for manufacturing curved helical springs Method of and device for manufacturing curved helical springs

1993-07-28

1995-08-22

Jones, David

Metal deforming

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

To form helical coil or tube

72142, B21F 310

Patent

active

054429455

ABSTRACT:
A method of manufacturing helical springs that are curved when unstressed from wire or rod heated to coiling temperature in one step. The spring is coiled on a mandrel that is curved to match the desired curvature of the finished spring.

REFERENCES:
patent: 287827 (1883-11-01), Hall
patent: 477525 (1892-06-01), Ferrell
patent: 2335423 (1943-11-01), Knoop
patent: 3000427 (1961-09-01), Gogan
patent: 3225579 (1965-12-01), Chombers

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