Looper drive with sliding and swiveling joint

Details Looper drive with sliding and swiveling joint Looper drive with sliding and swiveling joint

1987-02-24

1988-04-12

Reynolds, Wm. Carter

Sewing

Stitch forming

Chain or double chain

D05B 5702

Patent

active

047366966

ABSTRACT:
A looper drive for a chain stitch sewing machine, in which the joint between a connecting rod driven by a main shaft and a lever seated on a swivel shaft is a sliding and swiveling joint. Upon rotation of a ball eccentric, the transverse component of the rotary motion of a spherical shell is enabled by a rod sliding in bearing eyes on a bifurcated lever and the swinging motion of the lever, caused by the longitudinal component of the rotary motion of the spherical shell is enabled by the rod turning in the bearing eyes.

REFERENCES:
patent: 2029233 (1936-01-01), Hacklander
patent: 2704042 (1955-03-01), Wallenberg et al.
patent: 3342150 (1967-09-01), Tretow et al.
patent: 4022140 (1977-05-01), Lienemann

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