A METHOD OF PREPARING FABRICS COMPOSED OF OR CONTAINING CAOUTCHOUC TO ENABLE THEM TO RESIST THE ACTION OF COLOURS AND VARNISHES CONTAINING OIL
Year: 1860

page_text: LETTERS PATENT to William Henry Burke, the elder, and William Henry
Burke, the younger, of Brompton, in the County of Middlesex, Gentlemen,
for the Invention of "A METHOD OF PREPARING FABRICS COMPOSED OF OR
CONTAINING CAOUTCHOUC TO ENABLE THEM TO RESIST THE ACTION OF COLOURS
AND VARNISHES CONTAINING OIL."
Sealed the 1st March 1861, and dated the 6th September 1860.
PROVISIONAL SPECIFICATION left by the said William Henry Burke, the
elder, and William Henry.Burke, the younger, at the Office of the Com-
missioners of Patents, with their Petition, on the 6th September 1860.
We, WILLIAM HENRY BURKE, the elder, and WILLIAM HENRY BURKE, the
younger, of Brompton, in the County of Middlesex, Gentlemen, do hereby
declare the nature of the said Invention for "A METHOD OF PREPARING
FABRICS COMPOSED OF OR CONTAINING CAOUTCHOUC, TO ENABLE THEM TO RESIST
THE ACTION OF COLOURS AND VARNISHES CONTAINING OIL," to be as follows:-
Our Invention consists in coating the surface of the fabric composed of or
containing caoutchouc with a solution of some substance or compound which
will not be injuriously affected by heat, and which will not be acted upon by
oil. And we prefer to use for this purpose a solution of shell-lac or other like
suitable gum, or a coating of size. The oil, colour, or varnish may be after-
wards applied without injury to the caoutchouc.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Henry Burke, the elder, and William Henry Burke,
the younger, in the Great Seal Patent Office on the 6th March 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HENRY BURKE, the elder, and WILLIAM HENRY BURKE, the younger, of
Brompton, in the County of Middlesex, Gentlemen, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of September, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said William Henry Burke, the elder, and William Henry Burke, the younger,
Her special licence that we, the said William Henry Burke, the elder, and
William Henry Burke, the younger, our executors, administrators, and assigns,
or such others as we, the said William Henry Burke, the elder, and William
Henry Burke, the younger, our 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 "A METHOD
OF PREPARING FABRICS COMPOSED OF OR CONTAINING CAOUTCHOUC, TO ENABLE THEM
TO RESIST THE ACTION OF COLOURS AND VARNISHES CONTAINING OIL," upon the
condition (amongst others) that we, the said William Henry Burke, the elder,
and William Henry Burke, the younger, or one of us, our executors or
administrators, by an instrument in writing under our or their, or one of our
or 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 we, the said William Henry Burke, the elder,
and William Henry Burke, the younger, do hereby declare the nature of
our said Invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement
thereof, that is to say:--
Our Invention consists in coating the surface of the fabric composed of or
containing caoutchouc with a solution of some substance or compound which
will not be injuriously affected by heat, and which will not be acted upon by
oil. And we prefer to use for this purpose a solution of shell-lac or other like

page_text: suitable gum, or a coating of size. The oil, colour, or varnish, may be after-
wards applied without injury to the caoutchouc.
The fabric to which our Invention is intended more particularly to apply is
that known as Clark's patent felt. Previous to our Invention it has not been
practicable to color this felt by means of oil colours, on account of the oil
acting upon the india-rubber used in the manufacture of the felt; whereas,
by first covering it with a coating of solution of shell-lac or other like suitable
gum, any oil, color, or varnish may be applied without injury to the fabric.
We find it better to dissolve the shell-lac or other gum in water, aided by
ammonia, instead of dissolving it in spirit, though it may be used dissolved in
spirit. We prefer to use a solution of gelatine as one size, the gelatine being
dissolved in water, though flour paste, or gluten in solution, and in fact, any
other size acting as a stop to the color to be afterwards applied may be
employed.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim, coating or
covering fabrics composed of or containing caoutchouc with a solution of shell-
lac or other like suitable gum, or with size, to enable them to resist the action
of colors and varnishes containing oil.
In witness whereof I, the said William Henry Burke, the younger,
have hereunto set my hand and seal, this Sixth day of March, One
thousand eight hundred and sixty-one.
TT
ז תזזת.