Back to results
US 4,072,116 AGranted
Overedge stitch sewing machine
AssigneeUnion Special Corporation
InventorJoseph Nagy
Life of this patent
Estimating the term…
Abstract
The throat slot, arranged in the needle plate for the passage of the needle, has in the right front portion thereof a groove. It is designed to retain the previously formed thread chain and prevent the formation of the overlock stitch until displaced by the passage of a fabric.
Claims5
A sewing machine capable of producing thread chain having a thread chain positioning means for guiding the thread chain in a predetermined manner comprising:
- a throat plate means;
- a throat slot means located along the needle center line of said sewing machine;
- a groove means beginning at said throat slot means and extending to the right of the needle center line and being capable of carrying a thread chain;
- and
- a thread retainer means positioned in front of said throad slot means generally in line with said groove means.
2 more elements
A sewing machine capable of producing a thread chain having a thread chain positioning means for guiding the thread chain in a predetermined manner comprising:
- a throat plate means;
- a throat slot means in said throat plate means, said throat slot means being located along the needle center line of said sewing machine and having a front section means and right and left side section means;
- the front section means of said throat slot means having a forwardly sloping groove means capable of carrying a thread chain;
- and
- a thread retainer means positioned in front of said throat slot means generally in line with said groove means.
2 more elements
Dependencies are inferred from the claim text.