Vorrichtung zur Ausfuehrung von Laengsschnitten bei Rundwirkmaschinen

摘要

In the manufacture of panty hose or tights, the longitudinal cut of the hoisery is done automatically by means of an attachment to the conventional circular hosiery machine. This attachment comprises an inverted glass-shaped element inserted in the cylinder of the machine and having a lateral slot through which a resistor filament projects and cuts the hosiery sliding thereover when the filament is electrically heated. In one embodiment of the invention, the filament is not moved axially but is selectively energized by electrical means. In a second embodiment mechanical means are employed for selectively energizing the filament which is not moved axially. In a third embodiment, the filament is continuously energized but is displaced axially at preselected times to provide the desired intermittent contact with the article to be cut.