Vacuum cleaning folding rail

An equal path folder comprising:

• at least two elongate rails, each of said rails comprising:
• a hollow tube having a longitudinal axis, a proximal end, a distal end, and a vacuum applied thereto;
• each of said tubes having a first substantially planar surface parallel to said longitudinal axis;
• each of said tubes having a second substantially planar surface parallel to said longitudinal axis;
• each of said first surfaces and said second surfaces forming an edge therebetween;
• at least one opening in each of said tubes, said opening not being disposed on said first or said second surfaces;
• wherein each said first surface is angularly convergent upon said respective second surface at said distal end to forming an edge therebetween;
• and,
• said vacuum causing a negative pressure to be applied to said opening so that a web substrate passing over said first and second surfaces has at least a portion of said vacuum applied to a face of said web substrate when said web substrate contacts at least one of said first and second surfaces;
• and,
• wherein said distal end of said first elongate rail is fixably positioned relative to said distal end of said second elongate rail, said distal end of said first elongate rail and said distal end of said second elongate rail forming a vertex therebetween.

An elongate rail for an equal path folder comprising:

• a hollow tube having a longitudinal axis;
• said tube having a vacuum applied thereto;
• said tube having a first substantially planar surface parallel to said longitudinal axis;
• said first surface comprising at least two planes and defining a first protuberance and a first recess;
• said tube having a second substantially planar surface parallel to said longitudinal axis;
• said second surface comprising at least two planes and defining a second protuberance and a second recess;
• said first surface and said second surface forming an edge therebetween;
• at least one opening disposed on said first recess of said first surface;
• at least one opening disposed on said second recess of said second surface;
• and,
• said vacuum causing a negative pressure to be applied to said at least one opening disposed on said first recess and said at least one opening disposed on said second recess so that a web substrate passing over said first surface and said second surface has at least a portion of said vacuum applied to a face of said web substrate when said web substrate is proximate to said first surface and said second surface.