Those that have been made have been in the nature of further
development and improvement, such as increasing the speed and widening
the web, thereby multiplying the product many fold.
But let us resume the interesting journey of the rags, which had reached
a state of purification and perfection as pulp, and which we left in the
beaters. In some grades of paper the perfected and prepared pulp is
taken from the beaters and passed through what is known as a "refining"
or "Jordan" engine for the purpose of more thoroughly separating the
fibers and reducing them to extreme fineness. The refining engines are,
however, used only in the manufacture of certain grades of paper. The
pulp is next taken from the beater or refining engine, as the case may
be, to what is called a "stuff-chest," an inclosed vat partly filled
with water, in which a contrivance for shaking and shifting, properly
called an "agitator," keeps the fibers in suspension.
From the stuff-chest the mixture is pumped into what is known as the
"mixing" or "regulating" box.
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