Abstract The arrangement comprises a sewing apparatus which is partially supported below a material-supporting table and which partially extends through an opening above the table surface. Control means are provided to control the operation of the sewing apparatus as well as to feed the material to be sewn along each direction in which a seam is to be formed. Sensing means are provided to sense the fact that a seam has been completed. Also, means are provided which clamp the material to the table after each seam is sewn. The control means further include means to rotate the sewing apparatus and align it in such a way that when the material is again fed to the sewing apparatus, the latter sews a successive seam along a different selected direction.
An arrangement for sewing a seam along each of n separate directions in a piece of material, n being an integer not less than two, the arrangement comprising: sewing means; material support means for supporting a material in which seams are to be sewn thereon; and control means including means for selectively driving said sewing means to sew each of said seams in said material, feed means for feeding said material to said sewing means, material sense means for sensing the position of said material with respect to said sewing means and means responsive to a signal from said sense means indicating that a seam has been sewn for stopping the driving of said sewing means and for rotating said sewing means so as to align the latter to be in a position with respect to said material to sew a subsequent seam therein.
Claim 2
Dependent Claim
144 words
An arrangement for sewing a seam along each of n separate directions in a piece of material, n being an integer not less than two, the arrangement comprising: sewing means; material support means for supporting a material in which seams are to be sewn thereon; and control means including means for selectively driving said sewing means to sew each of said seams in said material, feed means for feeding said material to said sewing means, material sense means for sensing the position of said material with respect to said sewing means and means responsive to a signal from said sense means indicating that a seam has been sewn for stopping the driving of said sewing means and for rotating said sewing means so as to align the latter to be in a position with respect to said material to sew a subsequent seam therein.