Document corner turning belt transport apparatus and method

A method for guiding and controlling a discrete item through a turn in the feed direction, comprising:

• providing a stationary cylinder and a transport belt having in input end and an output end for conveying the discrete item halfway around the circumference of said stationary cylinder;
• providing said stationary cylinder with a plurality of holes helically aligned on said cylinder adjacent said transport belt;
• providing an air supply for sending air through said holes in said cylinder to maintain a gap of air between said transport belt and said stationary cylinder;
• transporting said discrete item along a first, horizontal path toward said stationary cylinder having an axis oriented at an angle to said first, horizontal path;
• transporting said discrete item in a helical pattern halfway around said stationary cylinder while the gap of air between said discrete item and said stationary cylinder;
• and
• transporting said discrete item away from said stationary cylinder in a second, horizontal path angled to said first horizontal path, whereby said discrete item is turned in the feed direction.