Gripper and bobbin assembly for double-lock-stitch sewing machin

Details Gripper and bobbin assembly for double-lock-stitch sewing machin Gripper and bobbin assembly for double-lock-stitch sewing machin

1977-04-15

1979-02-06

Schroeder, Werner H.

Sewing

Stitch forming

Revolving-hook type

112229, D05B 5714

Patent

active

041378580

ABSTRACT:
A bobbin and gripper assembly for a double-lock-stitch sewing machine has a stitch plate lying in a horizontal plane and a gripper rotatable in a horizontal plane below the stitch plate and receiving a bobbin housing. The latter is provided with a retaining finger which cooperates with abutments formed on the underside of the stitch plate to retain the bobbin housing against rotation with the gripper. In addition, the bobbin housing is held by a spring member which is effective to yieldably retard the bobbin against rotation in the direction of rotation of the gripper by friction therewith.

REFERENCES:
patent: 1928590 (1933-09-01), Grieb
patent: 2332964 (1943-10-01), Colegrove
patent: 2428027 (1947-09-01), Ivandick
patent: 2696794 (1954-12-01), Kirsch
patent: 3199480 (1965-08-01), Covert et al.
patent: 3347193 (1967-10-01), Perri
patent: 3921551 (1975-11-01), Gustmann et al.

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