D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
112/66
D05B 21/00 (2006.01) D05B 33/00 (2006.01)
Patent
CA 1066565
ABSTRACT OF THE DISCLOSURE In a method and an apparatus for automatically hemming a fabric piece, once a fabric means has been loaded onto the apparatus a series of steps are automatically performed by the apparatus to hem the bottom of the fabric means. Additional automatic devices can also be provided to aid loading the fabric means and removing the hemmed product from the apparatus. The operator need only position, to a certain degree, the fabric piece on support means or cages, and thereafter a substantially automatic sequence of events occur. The apparatus includes a substantial number of elements among which are the following: a takeup device that subjects the fabric to the proper combination of tension and properly positions the leading edge of the fabric on the cloth plate of the sewing head, a series of uncurlers which when actuated ensure a flat edge, and a folder to create the hem; a puller which rotates the fabric around the supporting cages and a takeup device to develop the material hem while aligning the leading edge thereof in relation- ship of three tension zones; a logic system, which upon receipt of the proper inputs from a series of points, starts the actual sewing cycle. As a result of the properly created zones of fabric tension, storing and carrying of the fabric is easily accomplished to achieve the desired results. Thereafter a means which counts stitches determines when the hem has been completed, terminates the sewing step and actuates a means which remove the hemmed fabric from the apparatus.
288905
Adamski Maximilian (jr.)
Desai Dhimat R.
Smith Robert E.
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