IMPROVEMENTS IN THE MANUFACTURE OF A FOR USE AS A SUBSTITUTE FOR PREPARATION LINSEED OIL OR COMPOUND SUITABLE
Year: 1882

page_text: LETTERS PATENT to Peter Gerion Oster of Cöln-am-Rhein, Prussia, German
Empire for an Invention of "IMPROVEMENTS IN THE MANUFACTURE OF A
FOR USE AS A SUBSTITUTE FOR
PREPARATION
LINSEED OIL
OR COMPOUND SUITABLE
-
PROVISIONAL SPECIFICATION left by the said Peter Gerion Oster at the
Office of the Commissioners of Patents on the 12th December 1882.
PETER GERION OSTER of Cöln-am-Rhein, Prussia German Empire, "IMPROVE-
MENTS IN. THE MANUFACTURE OF A PREPARATION OR COMPOUND. SUITABLE FOR
USE AS A SUBSTITUTE FOR LINSEED OIL
»
My invention has for its object to produce a preparation or compound which can
be used instead of linseed oil in painters' colours and is much cheaper than such oil.
I first produce a certain constituent part of my preparation by exposing linseed
oil or hempseed oil in large flat vessels for some length of time to contact with the
atmosphere, till it has become quite thick. The time during which the oil has to
be in contact with the air to acquire the necessary consistency depends on climatic
conditions and on those of temperature it varies between from 6 to 12 weeks.
This oil I term "thick oil."
Besides this "thick oil" I use purified petroleum, cotton seed oil, white rosin,
siccative (dryer) and litharge for producing my composition and in the following
proportions which may however be varied:

page_text: rosin are thoroughly intermingled. I then add the petroleum, likewise previously
heated to 80° or thereabouts, in a similar manner and continue the stirring for
some time maintaining the mixture at the same temperature. During this last
stirring, the siccative and the litharge are gradually added in small quantities at a
time.
When the mixture has cooled, some valerian oil or its equivalent can be added.
thereto so as completely to remove the petroleum smell. The quantity of these
- substances which has to be added is determined by the strength of the smell of
the petroleum which is employed. This addition may however be altogether
omitted.
After a few days the oil becomes quite clear and assumes a fine amber-colour,
it is then ready for use with paints and has all the qualities of the linseed oil
heretofore used but costs hardly half as.much.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Peter Gerion Oster in the Great Seal Patent Office on the
11th June 1883.
PETER GERION OSTER of Cöln-am-Rhein, Prussia German Empire. "IMPROVE-
MENTS IN THE MANUFACTURE OF A PREPARATION OR COMPOUND SUITABLE FOR
USE AS A SUBSTITUTE FOR LINSEED OIL."
My invention has for its object to produce an oil which can be used instead of
linseed oil in painters colours and is much cheaper than such oil.
I first produce a certain constituent part of my preparation by exposing linseed
oil or hempseed oil in large flat vessels for some length of time to contact with the
atmosphere, till it has become quite thick; The time during which the oil has to be
in contact with the air to acquire the necessary consistency depends on climatic
conditions and on those of temperature, it varies between from 6 to 12 weeks.
This oil I term "thick oil"
Beside this "thick oil" I use purified Petroleum, cotton seed oil, White rosin,
siccative (dryer) and litharge for producing my composition, and in the following
proportions, which may be varied
Petroleum
C10

page_text: temperature to the molten rosin, continually stirring the same either by a
mechanical stirrer or by hand so that the oils and rosin are thoroughly
intermingled. I then add the petroleum, likewise previously heated to 80° or
thereabouts in a similar manner and continue the, stirring for some time
maintaining the mixture at the same temperature. During this last stirring the
siccative and the litharge are gradually added in small quantities at a time
When the mixture has cooled some valerian oil or mirban oil (Oleum
Mirbani) can be added thereto so as completely to remove the petroleum smell.
The quantity of these substances which has to be added, is determined by the
strength of the smell of the petroleum which is employed. This addition may
however be altogether omitted.
After a few days the oil becomes quite clear and assumes a fine amber-colour;
it is then ready for use with paints and has all the qualities of the linseed oil
heretofore used, but costs hardly half as much.
Having now described my invention and the manner of performing the same I
wish it to be understood that what I claim and desire to protect under the
herein before in part recited Letters Patent is.
The herein described manufacture of an oil for paints substantially in the manner
and proportions and of the materials set forth.
In witness whereof I the said Peter Gerion Oster have hereunto set my hand
and seal this fifth day of June in the year of Our Lord One thousand
eight hundred and eighty three.
PETER GERION OSTER (L.S.)