The work of inspection is performed by women,
who detect almost instantly any blemish or imperfection in the finished
product as it passes through their hands. If the paper is to be ruled
for writing purposes, it is then taken to the ruling machines, where it
is passed under revolving discs or pens, set at regular intervals. These
convey the ruling ink to the paper as it passes on through the machine,
and thus form true and continuous lines. If the paper is to be folded
after ruling, as in the case of fine note-papers, the sheets pass on
from the ruling machine to the folding machines, which are entirely
automatic in their action. The paper is stacked at the back of the first
folding guide and is fed in by the action of small rubber rollers which
loosen each sheet from the one beneath, and push it forward until it is
caught by the folding apparatus. Man's mechanical ingenuity has given to
the machines of his invention something that seems almost like human
intelligence, and in the case of the folding machine, the action is so
regular and perfect that there seems to be no need of an attendant, save
to furnish a constant supply of sheets.
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