Title:
METHOD OF FORMING SEALING PORTION AND POLISHING YARN TREATING UNIT
Document Type and Number:
Japanese Patent JPS5284050
Kind Code:
A
Abstract:
A method of manufacture is disclosed by which punched holes in mass produced parts, such as sewing machine needles and yarn guiding elements for textile machines, can be readily shaped, deburred and polished using die-shaping procedures only.
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| JPH0675383 | [Name of device] Sewing needle |
Inventors:
YOZEFU TSUOTSUFUAA
Application Number:
JP13461576A
Publication Date:
July 13, 1977
Filing Date:
November 09, 1976
Export Citation:
Assignee:
SINGER CO
International Classes:
D05B85/02; B21G1/12; (IPC1-7): B21G1/00; D05B85/00