New Ulm weekly review. [volume] (New Ulm, Minn.) 1878-1892, 1880-11-03

cravings, but brief account Of Its
work may aid In its comprehension.
Some Of these machines are not less
than six feet wide and seventy-five feet
long, requiring building by itself, and
making sheet Of paper over five-feet
in width. The pulp Is pumped into an
elevated tank, from which it is deliv-
cred to the machine through an adjust
able gate opening from reservoir. The
amount of pulp fed to the machine reg
ulates and determines the weight of tho
paper, and of course it must be gov
erned absolutely and exactly. the speed
OF the machine being constant. The
pulp flows on to q roller, which depos-
its it on an endless apron of fine woven
wire, which has q constant jarring mo-
ton, tending to shake out the water
and aid in the homogeneous union of
particles. Thick rubber straps on
each side of the endless apron
determine the width Of the
sheet. Passing between rollers which
compress it, the sheet of pulp goes over
perforated boxes from which the air is
exhausted by pump, and much of the
remaining moisture is driven out by
atmospheric pressure. A bath of liquid
glue gives proper sizing to the sheet
after it is fully dried by cylinders heat
ed by steam. The sheets, dampened
by glue, are taken to drying rooae,
from whence, ali wrinkiea, Iney arc
submitted to q calender consisting of Q
stand of rolls, three of chilled iron and
two of paper. These latter are made of
manila paper cut in disks, with q hole
for the axis or shaft. and compressed
BY hydraulic pressure. When turned
and finished, these paper rolls are
AS smooth and almost as hard as
iron, presenting highly finished sur
face. The sheets are then trimmed
by machine suggestive of the guillo-
tine, and ruled. The pens used on the
ruling machine are Of peculiar form,
made of sheet brass and fed with ink
by wick. Most of those used in this
country are made by one concern in
Harrisburg, Pa.
Book paper is made of old paper en-
tirely. The processes are similar to
those employed in making paper from
rags, except that, owing to the more
pl nature of the material they are
not % long continued.
Jute is used for making coarse pa
per, such as is used extensively for
flour bags, for which it is well adapted,
being very tenacious of fiber, full
grown man having been carried by four
persons, each lifting corner of a sheet
of jute paper from which bags are
made, designed to hold quarter of a
barrel of tlour-forty-nine pounds. The
jute stalks come in lengths OF from ten
to fourteen inches. They are imported
from Calcutta, and are the same mate
rial from which gunny cloth and gun
ny bags ore made. The stalks pass
through a rotary cutter, with station
ary knives and knives set in q cylinder,
by which they are torn to coarse
shreds. A boiling under steam pres
sure, in a rotary boiler, with lime. fol-
lows, when the mass is heaped and al
lowed to ''sweat'' few days. II
passes through the cleaning engine, as
do the rags described above, is bleached
with chloride of lime, and sized with q
size made of rosin and washing soda.
The after machining is similar to that
used on writing paper.
Envelope paper and fine wrapping.
papers are made from old MANILA rope
and paper for paper-collars from cotton
rags. In both cases the processes arc
of q similar character to those employed
in the manufacture of paper for writing
purposes. A necessary requisite fol
paper making is pure water; 50 paper
mills are never found on the banks Of
sluggish streams or the shores of :
marshy, muddy pond. The colorine
matter for tints is introduced into thu
beating engine when finishing the hall
Stuff.-BOStOn Journal of Commerce.,