Abstract: Device for forming and sewing folds is provided in which one double fold DF and a plurality of single folds SF, located at spaced locations therefrom, are formed simultaneously on a cut, and the folds are also to be laid out flat with the folding tools.Three pairs of strips are provided as the holders for the folding tools, and the first of these pairs has two hinge-connected strips 86 and 87, which can be moved between the extended position and a buckled position. The strips of the second and third pairs can be moved in opposite directions and in opposite directions to the strips of the respective other pair, wherein the strips 88/89 and 90/91 of the second and third pairs of strips carry at least one folding knife. The first pair of strips carries the corresponding holders 112. The relative position of the first pair of strips 86/87 relative to the other two pairs of strips 88/89 and 90/91 is variable. The device is intended for producing workpieces with a plurality of folds of varying shapes, e.g.

Abstract: A feed device for feeding a material pattern cut to a sewing machine for the forming of stitch groups such as a row of button holes by a reciprocating needle operating on the material pattern which is advanced through the needle path and moved in a draw-off path, comprising a draw-off roll arranged alongside the needle in a position to engage the material. The draw-off roll is arranged on a shaft which is coupled through a sleeve to another shaft containing a transport roller forming part of a material transport. Drive means are connected to drive the shafts of the draw-off roller and a laterally arranged transport roller and a drive belt is interconnected between the transport roller and a second transport roller which extends rearwardly thereof and is located at the turning point of the material draw-off.

Abstract: An attachment for feeding reinforcing back buttons to a sewing machine which has a feed for main buttons to a button clamp which is positioned over a work material which is moved through a sewing station to sew the main button together with the back button which is fed beneath the material comprises a plate member which is mountable on a support arm of the sewing machine over which the material is fed. The attachment includes a plate member over which the material is fed which has a button chute guide groove defined thereon terminating in a button recess having a button aligning stop edge. The back button feed chute is connected to the plate for feeding back buttons in succession into the recess against the aligning stop edge. The guide groove is advantageously machined in an exchangeable plate which may attach to the work support arm of a sewing machine.

Abstract: A device for producing sewing seam patterns of stitch groups in a work, for example buttonholes, including a holding mechanism for displacing the work intermittently to perform individual sewing operations, and a sewing machine equipped with a work clamping mechanism which is displaceable relative to a needle bar performing a swinging motion, and which engages the work in the area of the seam pattern to be sewn, comprising, a guide arrangement connected to the sewing machine for displacing the sewing machine parallel to the direction of displacement of the clamping mechanism, and a drive mechanism connected to the guide assembly and controlled by movement of the clamping mechanism through which cyclic motions in conformity with stitch formation are imparted to the sewing machine along a distance corresponding to the length of a seam pattern to be formed, which motions are opposite in direction to those of the clamping mechanism.

Abstract: A device for feeding materials in a feed direction for operations thereon, such as sewing buttons or buttonholes, either directly on the material or onto separate strips of material which are fed thereto. The device includes means for clamping the material which is to be sewn so that it does not shift as it is moved through a stitching area. A movable carriage is mounted on a support frame for movement backwardly and forwardly in respect to the direction of material feeding, and it carries a lower endless conveyor arranged beneath and cooperable with an upper endless conveyor so that the endless belt stretched thereon may be biased together during the feeding operation so that the material is clamped along its entire length as it is fed with the movement of the carriage. The apparatus includes a separate clamping device for clamping the forward edge of the material at the end thereof which is beyond the sewing needle operating area and this is also movable with the carriage.

Abstract: A button selector feed for button sewing machines which has a button clamp plate with a button feed slot through which a driver is movable to advance a button into association with the sewing apparatus, comprises a button selector which is mounted on the clamp plate adjacent the feed slot. The button selector has a fixed part with a button delivery slot overlying the feed slot and a movable part which is movable relative to the feed part and which contains a plurality of button feed channels defined therein, each accommodating a stack or a supply of a button of a particular type. The movable part is movable, for example, rotatable, relative to the fixed part so as to position a selected one of the feed channels into alignment with the feed slot.