Union Special Corporation

Wolfgang Nolle

In the case of a sewing machine having a cutting means for the purpose of cutting a workpiece edge a disengaging means is provided by means of which an upper cutter is moved out of a working position in which it moves in a reciprocating manner--in dependence upon the rotational movement of a drive shaft--into an inoperative position. In so doing a lower cutter is covered.

Sewing machine with trimming device

A sewing machine having a blowing device which comprises an angularly constructed step, into which opens an opening from which a gas stream blows towards a curled edge of a workpiece for the purpose of uncurling the edge of the workpiece.

Blowing device on a sewing machine for uncurling the edge of sewing

A multi-needle chain-stitch seam is secured against unravelling and loosening by the following steps: A beginning region (A) of the seam is formed with short needle thread loops (6,7) an intermediate region (B) of the seam is formed with long needle thread loops (9) and an end region (C) is again formed with short needle thread loops (6,7). An adjusting member (67) actuated in a controlled manner on a sewing unit influences the formation of the stitches of the seam.

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Albstadt, Germany

Wolfgang Nolle