Coil actuating apparatus in a coil spring making machine

Details Coil actuating apparatus in a coil spring making machine Coil actuating apparatus in a coil spring making machine

1976-09-08

1977-12-27

Keenan, Michael J.

Metal deforming

With means to drive tool

Including gear-actuated tool support

72142, B21F 304

Patent

active

040647323

ABSTRACT:
A coil actuating apparatus in a coil spring making machine in which uniform coil springs are manufactured by alternately actuating reciprocating movement of a rack and stoppage of such movement for a predetermined period of time by rotation of a main cam through reciprocating rotation of a crank arm.

REFERENCES:
patent: 2120146 (1938-06-01), Halvorsen et al.
patent: 2163019 (1939-06-01), Blount et al.
patent: 2765022 (1956-10-01), Bergevin
patent: 2806507 (1957-09-01), Stofko
patent: 3090641 (1963-05-01), Eminger
patent: 3651708 (1972-03-01), Muller

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