Folding device to make two parallel folds in a leaf of paper or the like

A folding device to make two parallel folds at a distance from each other in a leaf of paper, the folding device comprising:

• two clamps with a sharp, folding edge, each formed by two clamping bars with pointed jaws which can be moved relative to each other between an open position with an opening between the clamping bars to feed the leaf to be folded and a closed position for clamping the leaf to be folded during the folding, whereby the clamps to feed the leaf are arranged opposite each other with their folding edges parallel and facing each other at a distance equal to the desired distance between the folds to be made;
• and
• a carrier configured to move the clamps relative to each other in their closed position in such a way that one of the clamps with its folding edge makes a circular movement around the folding edge of the other clamp to form both parallel folds at the level of the folding edges of both clamps.