Device for feeding the cloth in a sewing system for the production of open darts

Claim 1

A device for forming darts on a seing system using a sewing machine, comprising means defining a feed path along which the folded workpiece cloth is fed, a sewing machine located along the feed path, a feed bar having an upstanding guide ledge and a flat pressing plate portion engageable with the workpiece, means for moving the feed bar with the workpiece along the feed path to move the workpiece into engagement with the sewing machine for sewing a seam therealong, cutter means adjacent said feed path for cutting the workpiece along the fold line, and a U-shaped guide member having two leg portions between which the folded end of the workpiece is guided and having a connecting web between the leg portions with cutter access slot into which the cutter projects for cutting along the fold edge and between the folded layers of the workpiece.

Claim 2

A device for forming darts on a seing system using a sewing machine, comprising means defining a feed path along which the folded workpiece cloth is fed, a sewing machine located along the feed path, a feed bar having an upstanding guide ledge and a flat pressing plate portion engageable with the workpiece, means for moving the feed bar with the workpiece along the feed path to move the workpiece into engagement with the sewing machine for sewing a seam therealong, cutter means adjacent said feed path for cutting the workpiece along the fold line, and a U-shaped guide member having two leg portions between which the folded end of the workpiece is guided and having a connecting web between the leg portions with cutter access slot into which the cutter projects for cutting along the fold edge and between the folded layers of the workpiece.

Claim 7

A device for producing open darts comprising a table defining a support surface over which a workpiece is fed, a pressing and feed bar having an upstanding guide edge and a flat pressing plate portion engageable with the workpiece, a carriage carrying said pressing and feed bar and having means for moving said pressing and feed bar toward and away from the workpiece to effect engagement and disengagement of the workpiece, means connected to said carriage for moving said carriage to advance the feed bar with the workpiece along the table, a sewing machine located along said table in a position to operate on the workpiece as it is fed along said table, a bearing lever pivotally mounted adjacent one end alongside said table, a rotatable cutter carried on said bearing lever, means for biasing said bearing lever in a direction to position said cutter in engagement with the workpiece on the table, a U-shaped guide member located adjacent said table and having two leg portions between which the folded end of a workpiece is guided and having a connecting web portion between the leeg portions with a cutter access slot into which said cutter projects, and guide means carried on said bearing lever and engaged with said guide edge for guiding said cutter in respect to the workpiece in accordance with the configuration of said edge.

Claim 8

A device for producing open darts comprising a table defining a support surface over which a workpiece is fed, a pressing and feed bar having an upstanding guide edge and a flat pressing plate portion engageable with the workpiece, a carriage carrying said pressing and feed bar and having means for moving said pressing and feed bar toward and away from the workpiece to effect engagement and disengagement of the workpiece, means connected to said carriage for moving said carriage to advance the feed bar with the workpiece along the table, a sewing machine located along said table in a position to operate on the workpiece as it is fed along said table, a bearing lever pivotally mounted adjacent one end alongside said table, a rotatable cutter carried on said bearing lever, means for biasing said bearing lever in a direction to position said cutter in engagement with the workpiece on the table, a U-shaped guide member located adjacent said table and having two leg portions between which the folded end of a workpiece is guided and having a connecting web portion between the leeg portions with a cutter access slot into which said cutter projects, and guide means carried on said bearing lever and engaged with said guide edge for guiding said cutter in respect to the workpiece in accordance with the configuration of said edge.