Sewing – With tables or stands – For plural sewing units
Patent
1974-11-27
1976-07-13
Hunter, H. Hampton
Sewing
With tables or stands
For plural sewing units
112262, D05B 6936
Patent
active
039687600
ABSTRACT:
The application discloses a method and apparatus for the substantially automated forming and sewing of hems on pillowcases and the like. The open end of a pillowcase is applied over hem folding forms, which first fold a large hem, and then a small blind hem is formed to conceal the raw edge of the fabric. Unique arrangements, covered in my related U.S. Pat. No. 3,865,058, are provided for effecting these hem folding operations. According to the invention, the pillowcase is then partially inflated with air and advanced circumferentially, while the hem structure is sewed into the article. The disclosure includes advantageous arrangements for the detection of an unsewn seam along the formed hem, and also advantageous arrangements for sensing the completion of the sewing operation. Automatic arrangements are provided for the insertion and sewing of a label, and the removal and stacking of the completed article after sewing.
The principles of the invention are applicable to great advantage in connection with the forming of hems or the like on any tubular article. In addition, certain features of the invention have applicability in the processing of non-tubular articles.
REFERENCES:
patent: 1018796 (1912-02-01), Weis
patent: 1674388 (1928-06-01), Campbell
patent: 1722277 (1929-07-01), Couch et al.
patent: 1731001 (1929-10-01), Gail
patent: 1939464 (1933-12-01), Roseman
Kreidel Rudolf
Levine Lawrence J.
Rovin Herman
Automatech Industries Inc.
Hunter H. Hampton
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