The Farmington times. (Farmington, St. Francois County, Mo.) 1905-1926, 1910-07-07

various woods for IN" usual materials will be
noted at each stage Of manufacture.
Both soda and suIphato processes OF treat.
mcnt OF the chips VIII be used and the lab
oratury Will make It's own suphtc liquor In
vat adjacent to the dgpstorg. I'm which the
wood is cooked Toy steam until the lignin IS
all dissolved ANA only the cclmlosc left. A
blast of hiEhur,ssurc steam drives the chips
against the side of tho drostnr further d..
ydnE the coluosr ibors, and then the whole
mass is pumped ont By n centrifugal pump
into q tank iu which Il f. stirred until the
fiber Is sull further broken mp. over and
over II Is run through "rnor" truughs and
over screens whrr' suction draws out the
fiber TO be usu1 aul leaves behind tho small
chips srlIutcrs and other waste.
When the liquor has been washed out Of
II I'm washer driven by an electric motor "a
contrvanco much Ike the housewives wash
ing machiucl It is put into n press and the
water Is squeezed ont Of IT, Such Of the pulp
blocko from the press as are not wanted i'm.
mcdiatcly are then in convenient form to store
away on shelves
After going through the beating engines
the refined pulp Is run on to the screens of the
paper machine ana taken up by felt rollers
from which II goes 10 wooden rollers and then
between metal rollers to the steamhcatcd
drying drums, whore the wet sheet Is run back
and forth until It Is ready for the final smooth
finish Of the hot steel calenderInE rolls. ANY
grade Of paper can he made on this machine,
from the toughest brown paper 10 fine cor.
respondonce paper. in running sheet Is
inches vide and even matchmaking device
is attached, so that the impression can be
made on the wet sheet before II goes through
the rollers and on to the winding drum at the
end
How to make timber last longer by protect
ing II with prcEoryatves from the various
borers and fungous growths which attack
wood will be another important problem to
which considerable time and laboratory space
are TO be given.
Beneath the building is a great pit, heated
by steam to temperature most favorable to
rot and there, In separate glass compartments
all about the walls are to be samples Of tim.
berR with the various fungous growths and
animal and insect enemies OF the wood at
tachcd. The progress Of their effect upon the
wood Will be closely watched and compared
with that of the same pests upon samples Of
the wood treated with different preservatives.
prepared and applied in the room above.
a big skylight and many windows make
the prescrvative laboratory an excellent place
TO work and every facility is provided for test.
Ing the various forms OF preservatiyes and
antseptics TO protect timbers. such as those
in mines and waterfront piers, which are
much subject to the attack of minute animals
and plants.
Into two great treatment cylinders the tim.
bers are showed and steam pumps force the
oil from tanks above at high pressure into the
cylinders When more oil will enter the
cylinder. even under $50 pounds pressure per
square inch, 1t is drawn off and again returned
to the tanks and measured The difference
between the amount drawn of and that origi.
nally forced In, deducting the oil collected