IMPROVEMENTS IN THE PREPARATION OF OILS TO FIT THEM TO BE MIXED WITH VARNISHES OR DISSOLVED GUMS
Year: 1875

page_text: LETTERS PATENT to Maximilian Zingler, of 19, Buckland Crescent,
Belsize Park, in the County of Middlesex, for the Invention of
** IMPROVEMENTS IN THE PREPARATION OF OILS TO FIT THEM TO BE MIXED
WITH VARNISHES OR DISSOLVED GUMS."
PROVISIONAL SPECIFICATION left by the said Maximilian Zinglor at
the Office of the Commissioners of Patents, with his Petition, on
the 8th April 1875.
I, MAXIMILIAN ZINGLER, of 19, Buckland Crescent, Belsize Park, in
the County of Middlesex, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN THE PREPARATION OF OILS TO FIT THEM TO BE
MIXED WITH VARNISHES OR DISSOLVED GUMS," to be as follows:-
This Invention has for its object improvements in the preparation of
oils to fit them to be mixed with varnishes or dissolved gums.
I prepare castor oil or other non-drying oil to be mixed with varnishes
or dissolved gums by heating the oil with a small proportion of

page_text: anthracine, or by adding to it without heat a small quantity of tetra-
chloride of carbon. In this way I give drying properties to the oil.
Sometimes I mix linseed or other drying oil with the prepared cotton
seed or other non-drying oil
I also in a similar manner prepare linseed oil or other drying oil so
that it may mix without heat with varnishes or dissolved gums, or I
prepare linseed or other drying oil to be mixed with varnish by dissolving
rosin in the oil by means of heat, and then I add turpentine and
methylated spirit.
The varnish which I prefer to employ is that described in the Specifi- 1
cation of a former-Patent-granted to me, No 1239, in the year 1874
I also make useful varnishes by dissolving gums in cupion or fusil oil
by adding, thereto oil prepared in the manner above described.
I also in some cases mix fusil oil with the varnish described in the
Specification of my former Patent.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Maximilian Zingler in the Gicat Seal Patent Office
on the 6th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MAXIMILIAN
ZINGLER, .of 19, Buckland Crescent, Belsize Park, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of April, in the year of
our Lord One thousand eight hundred and seventy-five, in the thirty-
cighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Maximilian Zingler, Her special
license that I, the said Maximilian Zingler, my executors, adminis-
trators, and assigns, or such others as I, the said Maximilian Zingler,
my executors, administrators, and assigns, should at any time agree
-with, and no others, from time to time and at all times thereafter
during the term therem expressed, should and lawfully might make,
usc, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for

page_text: "IMPROVEMENTS IN THE PREPARATION OF OILS TO FIT THEM TO BE MIXED WITH
VARNISHES OR DISSOLVED GUMS," upon the condition (amongst others) that
I, the said Maximilian Zingler, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
scals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Scal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Maximilian Zingler, do hereby
declare the nature of the said Invention, and in what manner the same
1s to be performed, to be particularly described and ascertained in and
by the following statement thereof, that is to say
-
This Invention has for its object improvements in the preparation of
oils to fit them to be mixed with varnishes or dissolved gums.
I prepare castor oil or other non-drying oil to be mixed with varnishes
or dissolved gums by heating the oil with a small proportion, say from
2 to 5 per cent of anthracine, or by adding to it without heat a small
quantity of tetrachloride of carbon, say from 5 to 10 per cent. In this
way I give drying properties to the oil. Sometimes I mix linseed or
other drying oil with the prepared castor or other non-drying oil I
mix the prepared oil with the varnish or dissolved gums in various pro.
portions; if the varnish be required to have the properties of a spirit
varnish I do not use more than 5 to 12 per cent. of prepared non-
drying oil.
To make a varnish in the nature of an oil varnish I use 25 or even 50
per cent of prepared oil, viz, with an admixture of drying oil, such as
linseed or nut oil. I can also prepare linseed or other drying oil to be
mixed with the dissolved gums by dissolving rosin or other soft gum
resin in the oil by means of heat, and then I add turpentine and
methylated spirit. I dissolve 15 to 25 lbs of common rosin in 100 lbs.
of oil, and then add 50 lbs of turpentine and 50 lbs of methylated spirit.
I evaporate or distil off the spirit, and when cool I mix the prepared oil
with the dissolved gum, as already described.
The gum which I employ may be that described in the Specification
of a former Patent granted to me, No 1239, in the year 1874; but I
prefer to use Manılla copal gum.

page_text: I also can make varnishes by dissolving gums in cupion or fusel oil
by adding thereto oil prepared in the manner above described.
.
I also in some cases mix fusel oil as well as the prepared oil with the
varnish or dissolved gum, from 100 to 300 parts of fusel oil to 100 parts
of varnish or dissolved gums in suitable proportions, but I prefer to use 5
the liquid solution for dissolving gums, as described in my former
Patent, No. 1239, in the year 1874.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that I do
not confine myself to the exact details described, but I claim the 10
preparation of oils, substantially in the manner herein described, to fit
them to be mixed with varnishes or dissolved gums.
In witness whereof, I, the said Maximilian Zingler, havo here-
unto set my hand and seal, this Twenty-fifth day of September,
in the year of our Lord One thousand eight hundred and 18
seventy-five.