The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1999
Filed:
Dec. 02, 1997
Preston B Dasher, Lawrenceville, GA (US);
John S Chamlee, Lawrenceville, GA (US);
Tadeusz Olewicz, Hoschton, GA (US);
Atlanta Attachment Company, Lawrenceville, GA (US);
Abstract
A guiding system for use with translucent textile work pieces is disclosed. A free edge (52) of a tubular work piece extends along a continuous processing path and is folded under the work piece to form a hem in the work piece. The work piece is then advanced along the processing path toward a downstream sewing machine (11), whereupon the hem is sewn in the work piece. A lower ply sensing opposed beam sensor (76) upstream of the sewing machine detects a multiple ply leading edge of the folded hem, and is moved by a pneumatic cylinder (88) into a position laterally with respect to the processing path where it will detect the free edge of the folded and sewn hem, and will control a lower work piece guide assembly (34) so as to maintain a proper depth of the hem. This enables the sewing needles (20) of the sewing machine to align the two spaced parallel lines of stitching (68) at the beginning and end of the hem line for minimizing waste in such hem forming operations.