New or Improved Manufacture of Varnish, or of a Substance for Use in Making Varnish.
Year: 1894

page_text: Date of Application, 21st May, 1894
Complete Specification Left, 27th June, 1894 Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
New or Improved Manufacture of Varnish, or of a Substance for
Use in Making Varnish.
I, LAMBERTUS LUDWIG BERNHARD MEYER, of 13 Hoheweide, Hamburg,
Germany, Manufacturer, do hereby declare the nature of this invention to be as
follows:
This invention has reference to a new or improved manufacture of a varnish, or
of a substance for use in making a varnish capable of withstanding the action of
steam, hot and cold water, and dry heat.
According thereto fat-tar is produced by the dry distillation of fatty acids, the
distillation being continued until the tar, which remains in the retort, is freed as
far as possible from the fatty acid, and the product when cold has a glassy
appearance at the surfaces of fracture. Fat-tar thus obtained is heated with a
mixture of lead oxide and lead peroxide for a suitable time say for example for 3
to 4 minutes to a temperature of say about 500° C., until the tar has become
chemically combined with the lead oxides. The resulting product when cooled,
dissolved in mineral oils, and finally brought to a suitable consistency by mixing
with a suitable varnish-diluting agent, as for example turpentine, is adapted for
use as a varnish, having the properties hereinbefore mentioned.
.
New or Improved Manufacture of Varnish, or of a Substance for
Use in Making Varnish.
I, LAMBERTUS LUDWIG BERNHARD MEYER, of 13 Hoheweide, Hamburg,
Germany, Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
This invention has reference to a new or improved manufacture of a varnish, or
of a substance for use in making a varnish capable of withstanding the action of
steam, hot and cold water, and dry heat.
According thereto fat-tar is produced by the dry distillation of fatty acids, the
distillation being continued until the tar, which remains in the retort, is freed as
far as possible from the fatty acid, and the product when cold has a glassy
appearance at the surfaces of fracture. Fat-tar thus obtained is heated with a
mixture of lead oxide, such as litharge, and lead peroxide for a suitable time say
for example for 3 to 4 minutes to a temperature of say about 500° C., until the tar
has become chemically combined with the lead oxides. Suitable proportions of
the said materials are about 90% of fat-tar, 5 or 6 % of litharge, and 5 or 4% of
lead peroxide.
The resulting product when cooled, dissolved in a mineral oil, as for example
benzol, and finally brought to a suitable consistency by mixing with a suitable
varnish-diluting agent, as for example turpentine, is adapted for use as a varnish,
having the properties hereinbefore mentioned.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The manufacture or production of a substance suitable for making a varnish
capable of resisting the action of steam, hot and cold water, and dry heat, by
heating the fat-tar obtained by the dry distillation of fats, with a mixture of lead
oxide such as litharge and lead peroxide, in such a manner as to cause these
substances to chemically combine and produce a product capable of readily drying
and which can be used as a drying varnish when diluted with a suitable agent
such as turpentine substantially as herein described.
2. The herein described manufacture of a varnish consisting of the chemical
product obtained by heating fat-tar obtained by the dry distillation of fats, with
lead oxides, a solvent such as benzol, and a diluting agent such as turpentine.
3333
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.