Adjusting device for a lower knife of a sewing machine

Details Adjusting device for a lower knife of a sewing machine Adjusting device for a lower knife of a sewing machine

1991-05-23

1992-07-14

Schroeder, Werner H.

Sewing

Work manipulating

Trimmers

D05B 3700

Patent

active

051293382

ABSTRACT:
An adjusting device for a lower knife being disposed in a support of a sewing machine and including a sleeve fitted in the support and having a pair of slots, a bolt rotatably received in the sleeve and having one end extended outward of the sleeve, a knob fixed to the bolt, a slide having an inner thread engaged with the bolt and having a pair of ribs slidably engaged with the slots of the sleeve so that the slide can be guided to slide longitudinally in the sleeve by rotation of the knob, the lower knife is fixed to the slide.

REFERENCES:
patent: 2224070 (1940-12-01), Walter
patent: 2896712 (1959-07-01), Brenner et al.

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