The progressive farmer. [volume] (Winston, N.C.) 1886-1904, 1891-03-03
PROGRESS.
A NEW USE FOR COTTON SEED OIL.

NEW USE FOR COTTON SEED OIL.
In a suitable metallic vessel of some
thing nor than gallon in capacity
is placed one gallon of pure cotton seed
oil. There are now melted in a furnace
in a suitable crucible or ladle twenty
pounds of pure lead metal, care being
taken that the entire quantity of the
lead is in the molten state, which will
insure a temperature thereof of not less
than 334 degrees of heat COntigrade.
In this molten state the lead is then
poured gradually in the one gallon of
cotton seed oil, care being taken that
the mixture is well stirred during the
process of pouring, in order that, as
far as possible each mOlecule of the
molten lead will be exposed to the
action of the cotton seed oil. In this
process of pouring the molten lead, as
soon as the hot and molten metal strikes
the surface of the oil it follows the law
common to all molten metal when
thrown in a liquid and separates into
very minute glObules, the bright and
pure surfaces of which are brought in
immediate contact with the cotton seed
oil, and by the heat therefrOm impart
such affinity to the cotton seed oil in
immediate contact Herewith that a
certain part of the lead will be absorbed
by the cotton seed oil, which, when re-
moved from the influence of the heated
glObule of lead, will Immediately cool
sufficient to retain therein the lead thus
absorbed. When the entire twenty
pounds of molten lead have been thus
poured in the gallon Of cotton seed oil,
it is allowed to remain some little time
TO COOL off 0f+Oyp Trhio1 tho oil i1 4 rae IT7o
off, and there will be found remaining
in the bottom of the vessel in various
forms about seventeen pounds of the
pure lead, thus showing that in this
one process of pouring about three
pounds of lead have been absorbed by
the one gallon of cotton seed oil. The
remaining seventeen pounds of lead is
now removed from the vessel, and the
gallon of cotton seed oil, that has now
about three pounds of lead therein, is
returned to the vessel. The remaining
seventeen pounds of pure lead is again
heated and brought to the molten state,
in which condition it is again poured
in the cotton seed oil contained i'll the
vessel, the same care being observed in
stirring the mixture during the process
Of pouring as in the first pouring of the
metal.
After this second process of pouring
the molten lead in the cotton seed oil
the mixture is allowed to cool suffi-
GENTLY, when the oil is again drawn
from the vessel, and there will now be
found remaining about fifteen pounds
of pure leaf, thus showing that in this
second process of pouring the molten
metal two pounds of lead additional
have been absorbed by the cotton seed
oil, which will now contain about five
pounds of lead combined Herewith.
This process of re-melting the remain
ing lead and again pouring and mixing
it with the same cotton seed oil is con
tinued with advantage up to the fifth
time of pouring the molten metal, after
which the cotton seed oil will be found
to have absorbed about ten pounds OF
the lead, after which there seems to be
no further affinity of the oil for the
metal. After the cotton seed oil has
been brought to this stage it IS allowed
to thoroughly cool, when it's consistency
will be about that of ordinary paint.
The compound is now in condition to
be applied to those surfaces that it is
desired to protect against corrosive Or
d~eteriOrating influences, and may be
applied with a sponge or brush. as III
the application of ordinary paint. In
applying the compound it's adhesive
ness will cause it to adhere tightly to
the surface coated Herewith. 1t is
preferred to apply II coat and then
allow it to remain about fOrty-eight
hours, during which time it will have
become sufficiently hard to resist ordi-
nary abrasion, and after which a second
coat may be applied with advantage.
Philip Helbig and Herman Bertling,
of Baltimore, Md, are the authors of
this new article and process. They
saw: 1t has been found in practice that
no other of the known oils, other than
cotton seed oil, possesses the quality of
absorbing the lead when treated as
herein described, and that the cotton
seed oil possesses the quality of absorb
ing certain proportions of other metals
when poured therein in the molten
state in the herein described.
AS stated, the compound may be en-
plOyed to protest metallic surfaces of
any kind, and is claimed to be particu-
larly useful for coating the bottoms of
iron or steel ships to protect the surface
thereof from rust and the adherence
thereto of barnacles and other marine
life. It is likewise of equal benefit for
the protection of wooden surfaces that
are to be buried in the earth or exposed
to the action of water-such as fence
posts, piles, etc.-Scientyfc american.
The receipts of the French. treasury
are larger than those of any other civil