Abstract: An apparatus for sewing stitch-group seam patterns of a longitudinal direction that runs lengthwise or crosswise of an edge of a work piece comprises a table with a slab with an operator's side allocated thereto. Disposed on the slab is a bearing plate with a sewing machine resting thereon by its base plate. The slab is pivotable by a right angle between a first and a second working position and about a pivot bearing with an axis that is perpendicular to the slab. In this way, the position of the sewing machine relative to the operator's side is modifiable by a right angle.

Abstract: A CNC controlled buttonhole sewing machine comprises work piece clamps with sliding drives for displacement from an initial position of spread, by a length of spread, into a final position of spread. The sliding drive is an electric positioning motor that is allocated to a work piece clamp. Further provision is made for a control unit with data storage, in which to store data, for displacement of the work piece clamp by a given length of spread.

Abstract: A buttonhole sewing machine comprises work piece clamps with displacement drives for displacement from an initial position of spread by a length of spread into a final position of spread. The work piece clamp comprises a supporting plate for accommodation of a work piece and a clamping plate mounted on the supporting plate. A clamping drive for actuation of the clamping plate supports itself on the supporting plate.

Abstract: A buttonhole sewing machine comprises work piece clamps with displacement drives for displacement from an initial position of spread by a length of spread into a final position of spread. The work piece clamp comprises a supporting plate for accommodation of a work piece and a clamping plate mounted on the supporting plate. A clamping drive for actuation of the clamping plate supports itself on the supporting plate.

Abstract: An apparatus for sewing stitch-group seam patterns of a longitudinal direction that runs lengthwise or crosswise of an edge of a work piece comprises a table with a slab with an operator's side allocated thereto. Disposed on the slab is a bearing plate with a sewing machine resting thereon by its base plate. The slab is pivotable by a right angle between a first and a second working position and about a pivot bearing with an axis that is perpendicular to the slab. In this way, the position of the sewing machine relative to the operator's side is modifiable by a right angle.

Abstract: A CNC controlled buttonhole sewing machine comprises work piece clamps with sliding drives for displacement from an initial position of spread, by a length of spread, into a final position of spread. The sliding drive is an electric positioning motor that is allocated to a work piece clamp. Further provision is made for a control unit with data storage, in which to store data, for displacement of the work piece clamp by a given length of spread.

Abstract: A system for the edge-parallel sewing of a workpiece, consisting of a plurality of layers, together to form a seam, e.g. in the production of trouser legs, pockets, shirts and the like, comprises a workpiece guide in the region of the needle path and formed with separators interposed between the layers, and a drag-clamping device which engages a portion of the stack of fabric layers remote from the incipient stitching operation to apply a stretching or drag force thereto. According to the invention, a retracting device is provided which, upon approach of the drag clamp to the stitching location, withdraws the guide device out of the path of the clamp.