The matted pulp, now having sufficient body, passes on between two rolls
covered with felt which deliver the web of damp paper upon an endless
belt of moist felt, while the "wire" passes under and back to continue
a fresh supply. The paper is as yet too fragile to travel alone, and
the web felt carries it between two metal rolls called the first
press-rolls. These squeeze out more water, give a greater degree of
compactness to the fibers, smooth the upper surface, and finally deliver
the web of paper to a second felt apron which carries it under and to
the back of the second press-rolls. In this way the under surface comes
to the top, and is in its turn subjected to the smoothing process. A
delicate scraper or blade, the length of the press-rolls, is so placed
on each roll that should the endless web from any cause be broken, the
blade may operate with sufficient force to prevent the wet paper from
clinging to the rolls and winding about them. From this point the paper
travels alone, having become firm and strong enough to sustain its own
weight; passing above the second press-rolls, it resumes its onward
journey around the drying cylinders, passing over and under and over and
under.
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