The Winslow mail., 1899-05-27
RUBBER FROM OILS.
New Substitute for the Decreasing
Genuine Article.
An English Enterprise Which Bids
Fair to Supply tke increasing
Demand for a Resilient
Material.

A new industry which has just been
established upon an apparently firm
basis in England uses for its raw mate
rial lnseed oil or any OF the othervege-
rabe oils of similar properties. 1t
promises to become of wide impor-
tance because its products partake of
many of the qualities of india rubber
and gutta percha, the supplies of which
show consta t tendency to fall below
the growing demands. That oils of this
sort have in them qualities of high use
fulness was discovered ages ago, when
they were first used for paints, and the
new industry takes advantage Of the
same quality of hardening by oxidiza-
tion.
Linseed oil has been used for paints
and varuishes for generations. 1t is
we'll known that when the oil is spread
out in a thin layer exposed to the air
it absorbs oxygen and becomes very
hard. When the oil is left in bulk ex-
posed to the air it gradually becomes
fatty" as it is called technically, or Of
a gummy consistency. Exposures of
different periods will give any grade
OF hardness between these two. Other
vegetable oils act in the same way, and
many attempts have been made to take
commercial advantage of these quail
ties. Some, like the manufacture of oil
cloths and linoleum, have been very
successful. The difficulty experienced
heretofore in attempting to use the
oxidized oils for other purposes has
been the fact that it was mechanically
impossible to accomplish the perfect
and graded combination of the oxygen
with the oil, as might be needed for the
different purposes. The general meth
cd adopted was to allow the oil to drip
from the top to the bottom of a wide,
suspended sheet of scrim, an open
meshed textile fabric, while a current of
all was driven upon it. By this method
the surface of the oil was solidified, but
the action did not extend all through
il and there was, therefore, a portion of
unaffected Gil held within, which it was
known might be made of more perfect
product.
Mr.. Charles Grist. of England, has
perfected a system by which it is as
serted that this trouble is entirely over
come. and a large factory has been
built where many articles are manu-
factured from the oils solidified by his
process. His method of treating the
oil IS TO saturate quantity of tow with
it, and then, in centrifugal machine,
throw out every particle of the oil eX-
cept that which clings in minute
Slobues TO the fiber OF the tow itself.
The bunches of tow are then put on
srds of metal in a chamber where
warm air is forced through them and in
"a hours the Gil is thoroughly oXidized.
The material is then ground up, mixed
with any desired ccloring matter and
finally rolled out into sheets, in which
condition it resembles india rubber and
possesses many of the qualities of rub
ber and gutta percha. 1t is as resilient
as rubber, but not as elastic, is i'm
pervious to chemical action, and with
stands heat up to 240 degrees Fehren-
heit, and 1t can be vulcanized by the
same processes used for rubber and
gutta percha. 1t has high electrical in
sulating qualities and can be used for
cable wire coverings and other forms of
electrical insulators and it is made into
wheel tires, which are said to be equal
to those of rubber. 1t can be dissolved
in ethereal spirits Of all kinds, and
from these solutions it can be applied as
waterproofing coverings for fabrics Of
any sort.-N. Y. Sun.