Abstract: A sewing machine for wrapping button shanks comprises a holder for a workpiece to which a button is attached by means of shank loops. To adjust the work holder to the length of the shank loops, two spaced apart holding elements are provided by which the work is separated from the button and which can be positioned at the desired distance from each other. To cut the sewing thread, a cutting blade is displaceable in one of the holding elements and the cutting edge of the blade is movable transversely to the needle path, between the inserted shank loops and a rotary hook.
Type:
Grant
Filed:
December 3, 1980
Date of Patent:
October 27, 1981
Assignee:
Pfaff Industriemaschinen GmbH
Inventors:
Karl Barth, Ernst Albrecht, Horst Stahlschmitt