Patent ID: 8506465
Filing Date: 2013-08-13
Classification: B65H

Abstract:
1. A method of folding a medium in a folding apparatus containing a rotatable folding cylinder, a first rotatable press member capable of engaging said folding cylinder to form a first folding pinch, a second rotatable press member, capable of engaging with said folding cylinder to form a second folding pinch, and a medium feed means, said method comprising the steps of: a) feeding the medium with the medium feed means towards the folding cylinder and between the first and second pinch; b) directing the medium into the first folding pinch formed by engaging said first rotatable press member with said folding cylinder, by rotating the folding cylinder in a first direction; c) forming a blouse in the medium in between said feed means and the folding cylinder; d) moving said blouse into said second pinch by rotating the folding cylinder in a second direction, opposite to the first direction, and correcting for medium skew prior to executing step a) by driving the feed means in a reverse direction with respect to the feeding direction until the leading edge of the medium is aligned.