Top feed system with toothed belt and clutch

Details Top feed system with toothed belt and clutch Top feed system with toothed belt and clutch

1992-09-14

1995-01-24

Crowder, Clifford D.

Sewing

Stitch forming

Feeding work material

112320, 112235, D05B 2704, D05B 2906

Patent

active

053834186

ABSTRACT:
A synchronized, indexed positive material top feeding system for use with sewing and other applications. For example, material being fed to and through the sewing area of a sewing machine, is constantly "gripped" at the top thereof in front of, behind and in the sewing area as well as through an adjustable presser bar. This process takes place without affecting machine speeds, and in feeding movement that is synchronized with the machine feed dog for similar or variable stitch travel. This process is facilitated by a belt with "teeth" that contact and provide frictional engagement of the top of the material.

REFERENCES:
patent: 573327 (1896-12-01), Hanna
patent: 2241230 (1941-05-01), Wilmoth
patent: 3087446 (1963-04-01), Flach et al.
patent: 3783990 (1974-01-01), Siciliano
patent: 3835716 (1974-09-01), Ballamy
patent: 4171129 (1979-10-01), Daley et al.
patent: 4311106 (1982-01-01), Hannemann
patent: 4417535 (1983-11-01), Hannemann
patent: 4594957 (1986-06-01), Von Hagen
patent: 5022336 (1991-06-01), Iwase
patent: 5152237 (1992-10-01), Block et al.

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