Roller feed device for sewing machines

Details Roller feed device for sewing machines Roller feed device for sewing machines

1979-01-05

1980-08-19

Hunter, H. Hampton

Sewing

Stitch forming

Feeding work material

192 12B, D05B 2714

Patent

active

042178428

ABSTRACT:
An improved feed device for sewing machines of the double feed roller type in which one of the rollers is intermittently rotated by a unidirectional clutch. A clamping unit functions in cooperation with the clutch to prevent a reverse movement of the feed roller, and a braking device operatively associated with the clutch and clamping unit is effective in a simultaneous positive locking of both of the latter each time the feed roller completes its limit of travel.

REFERENCES:
patent: 2325643 (1943-08-01), Weis
patent: 2461862 (1949-02-01), Weis
patent: 2901991 (1959-09-01), Reimer
patent: 3221688 (1965-12-01), Marjorio
patent: 4102282 (1978-07-01), Hsiao et al.

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