IMPROVEMENTS IN VARNISHES
Year: 1870

page_text: LETTERS PATENT to John Macintosh, of North Bank, Regent's Park,
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
VARNISHES
"
Sealed the 2nd June 1871, and dated the 6th December 1870.
PROVISIONAL SPECIFICATION left by the said John Macintosh at
the Office of the Commissioners of Patents, with his Petition, on
the 6th December 1870.
I, JOHN MACINTOSH, of North Bank, Regent's Park, in the County
of Middlesex, do hereby declare the nature of the said Invention for
“IMPROVEMENTS IN VARNISHES," to be as follows:-
In making varnish I take eight parts of mithylated ether, in which is
dissolved two parts of powdered copal. When the whole is filtered or
strained it is ready for use.
I also take four parts of mithylated alcohol and a quarter part of
castor oil, to which I add two parts of pulverised resin, kauri, or cowdee.
When the resin is dissolved I add four parts of lampblack and mix the
whole thoroughly together. The varnishes thus prepared may be made

page_text: any color by the employment of suitable coloring matters in lieu of the
lampblack.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Macintosh in the Great Seal Patent Office
on the 6th June 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MACINTOSH, of North Bank, Regent's Park, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the Sixth day of December, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Macintosh, Her special licence, that I,
the said John Macintosh, my executors, administrators, and assigns, or
such others as I, the said John Macintosh, 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 therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN VARNISHES," upon
the condition (amongst others) that I, the said John Macintosh, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, 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
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Macintosh, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement:-
In making varnish I take eight parts of methylated ether, in which is
dissolved two parts of powdered copal. When the whole is filtered or
strained it is ready for use.

page_text: I also take four parts of methylated alcohol and a quarter part of
castor oil, to which I add two parts of pulverised resin, kauri, or cowdee.
When the resin is dissolved I add four parts of lampblack and mix
the whole together. The varnish thus prepared may be made any
color by the employment of suitable coloring matter in lieu of the
lampblack.
The above proportions may be varied as they are required.
In witness whereof, I, the said John Macintosh, have hereunto
set my hand and seal, this Sixth day of June, in the year of
our Lord One thousand eight hundred and seventy-one.
Witness,
JNO. M. MACINTOSH.
JOHN MACINTOSH. (L.S.)