D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
112/74
D05B 25/00 (2006.01)
Patent
CA 1056650
ABSTRACT OF THE DISCLOSURE This serging machine uses a righthand serging sewing head for serging one edge of an elongate strip of material and another, pre- ferably identical, righthand serging sewing head for serging the op- posite edge of that same strip contemporaneously. This is accom- plished by directing the strip material from a front supply roll rearwardly through the machine along one run of a given path, turn- ing the strip 180° at the rear end of the machine to return it for- wardly through the serging machine and its feed rolls along another generally parallel run of said path and then rewinding it on a front rewind roll at the front end of said path. One edge is serged dur- ing the rearward run; the other during the forward run. First and second motors are used to drive the serging sewing heads continuous- ly. A third motor is used not only to drive the feed rolls contin- uously to pull the strip through the machine but also to drive the rewind roll through a slip clutch. A fourth motor is used to drive the supply roll intermittently in a manner such that, when the slack between the supply roll and the 1st head reduces to a predetermined minimum so as to tend to tighten and stretch the rearward run, a switch starts the fourth motor to increase the slack until another switch operates to stop the fourth motor when said slack increases to a predetermined maximum degree of looseness.
263331
LandOfFree
Dual sewing head serging machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual sewing head serging machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual sewing head serging machine will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-957722