IMPROVEMENTS IN WATERPROOF VARNISHES AND PAINTS
Year: 1869

page_text: LETTERS PATENT to John Macintosh, of North Bank, Regent's Park,
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
WATERPROOF VARNISHES AND PAINTS."
Sealed the 22nd December 1869, and dated the 24th June 1869.
PROVISIONAL SPECIFICATION left by the said John Macintosh at the
Office of the Commissioners of Patents, with his Petition, on the
24th June 1869.
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 WATERPROOF VARNISHES AND PAINTS," to be as follows:-
In making varnish I take eight parts of rectified petroleum spirit in
which is dissolved two parts of gum damar. When the whole is filtered
and strained, as is well understood, it is ready for use.
In making paints I take stearic acid or paraffine alone or in com-
bination, and reduce them by means of heat to a liquid state. To every:
eight pounds of paraffine or stearic acid alone or in combination I then

page_text: add two pounds of gum damar. The paints may be coloured by any
suitable colouring matter, and may be applied in a heated state, or
when used cold may be diluted to a suitable consistency by means
of rectified petroleum spirit. The proportions as herein-before stated
may be varied according to the purposes for which the varnish or paint 5
may be used.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Macintosh in the Great Seal Patent Office on
the 24th December 1869.
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 Twenty-fourth day of June, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of ler 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, usc, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN WATERPROOF VARNISHES
AND PAINTS," upon the condition (amongst others) that T, 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 mauner the same is
to be performed, to be particularly described and ascertained in and
by the following statement:-

page_text: In making varnish I take eight parts of rectified petroleum spirit in
which I dissolve two parts of prepared gum dammar, and filter or strain
the whole, as is well understood.
In making paints I take stearic acid or paraffin alone or in com-
bination, and reduce them by means of heat to a liquid state. To every
cight pounds of paraffin or stearic acid alone or in combination I then
add two pounds of gum dammar. The paints may be coloured by any
suitable colouring matter, and may be applied in a heated state, or
when used cold may be diluted to a suitable consistency by means
of rectified petroleum spirit. The proportions as herein-before stated
may be varied according to the purpose for which the varnish or paint
may be used.
In saturating or coating cloth with the above paint it is desirable to
mix with it a sufficient quantity of india-rubber or gutta percha, so as to
increase its flexibility.
In witness whereof, I, the said John Macintosh, have hereunto
set my hand and seal, this Twenty-fourth day of December,
in the year of our Lord One thousand eight hundred and sixty-
nine.
20
Witness,
JNO. M. MACINTOSH.
JOHN MACINTOSH. (L.S.)