A NEW OR IMPROVED COMPOSITION TO BE APPLIED TO CLOTH AND OTHER FABRICS AND MATERIALS For The ManufactuRE OF ARTIFICIAL LEATHER
Year: 1874

page_text: LETTERS PATENT to William Henry Hunstone, of Springfield Iron
Works, Salford, in the County of Lancaster, and John Thorpe, of
Farnworth, near Bolton, in the same County, for the Invention of
"A NEW OR IMPROVED COMPOSITION TO BE APPLIED TO CLOTH AND OTHER
FABRICS AND MATERIALS For The ManufactuRE OF ARTIFICIAL LEATHER,
Scaled the 2nd April 1875, and dated the 7th October 1874.
PROVISIONAL SPECIFICATION left by the said William Henry
Hunstone and John Thorpe at the Office of the Commissioners of
Patents, with their Petition, on the 7th October 1874.
We, WILLIAM HENRY HUNSTONE, of Springfield Iron Works, Salford,
in the County of Lancaster, and JOHN THORPE, of Farnworth, near
Bolton, in the same County, do hereby declare the nature of the said
Invention for "A NEW OR IMPROVED COMPOSITION TO BE APPLIED TO CLOTH AND
OTHER FABRICS AND MATERIALS FOR THE MANUFACTURE OF ARTIFICIAL LEATHER,

page_text: CLOTH, AND SIMILAR MATERIALS, AND
follows:-
OTHER WATERPROOF FABRICS," to be as
Our Invention has reference to the manufacture of cloths to imitate
leather, floorcloths, and cloths to be used in place of oil cloths, and
also to waterproof cloth and waterproof paper to be used for various
purposes.
The object of our Invention is an improved composition which can be
applied to cloths so as to manufacture such fabrics as will imitate leather
in much less time and with less labour and fewer operations than
has hitherto been practicable in making what is known as " American
leather cloth" and similar fabrics.
Our Invention consists in forming a composition for the purpose above
named principally of resins and glue or gelatine.
Under the term resin we include all gums or gum resins which will
melt at a temperature of 240 degrees Fahrenheit.
As far as our present experiences goes we prefer to form one one
hundred parts (by weight) of our improved composition as follows, but
its proportions and same as its ingredients may be varied :-Our first
mixture consists of 35 parts of water, in which 22 parts of glue or
gelatine are dissolved, when 3 parts of acetate of alumina are added.
Our second mixture consists of 15½ parts of resin dissolved by heat,
33 parts of naphtha being then added. The first and second mixtures
are combined together, then 4 parts of glycerine are then added to soften
the composition, and also 16% parts of coloring matter to give the
required color.
The composition is applied to the fabrics in one or more coats by
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Henry Hunstone and John Thorpe in the
Great Seal Patent Office on the 2nd April 1875.

page_text: Lancaster, and JOHN THORPE, of Farnworth, near Bolton, in the same
County, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of October, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said William Henry Hunstone and
John Thorpe, Her special license that we, the said William Henry
Hunstone and John Thorpe, our executors, administrators, and assigns,
or such others as we, the said William Henry Hunstone and John
Thorpe, 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 NEW OR IMPROVED COMPOSITION TO BE APPLIED TO CLOTH AND OTHER FABRICS
AND MATERIALS FOR THE MANUFACTURE OF ARTIFICIAL LEATHER, CLOTH, AND
SIMILAR MATERIALS, AND OTHER WATERPROOF FABRICS," upon the condition
(amongst others) that we, the said William Henry Hunstone and John
Thorpe, 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 Inven-.
tion, 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 we, the said William Henry Hunstone and
John Thorpe, 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 (that is to
say) :-
Our Invention has reference to the manufacture of cloths to imitate
leather, floorcloths, and clothis to be used in place of oil cloths, and
also to waterproof cloths, and waterproof paper to be used for various
purposes.
The object of our Invention is an improved composition which can be
applied to cloth so as to manufacture such fabrics as will imitate leather

page_text: in much less time and with less labour and fewer operations than
has hitherto been practicable in making what is known as " American
leather cloth" and similar fabrics.
Our Invention consists in forming a composition for the
named principally of resins and glue or gelatine.
purpose above
Under the term resin we include all gums or gum resins, which will
melt at a temperature of 240 degrees Fahrenheit.
:
We prefer to form every one hundred parts (by weight) of our
improved composition as follows, but its proportions and some of its
ingredients may be varied:-Our first mixture consists of 35 parts of
water, in which 22 parts of glue or gelatine are dissolved, when three
parts of acetate of alumina are added, or in some cases instead of alumina
we prefer to use one or more of the hydrofugic agents named and
described in capatil 6 of the Specification of Radley and Myers' Patent,
-No. 13,081, A.D., 1850. Our second mixture consists of 15 parts of
resin dissolved by heat, 3 parts of naptha being then added. The first
and second mixtures are combined together, then 4 parts of glycerine are
added to soften the composition, and also 16% parts of coloring matter
to give the required color.
The composition is applied to the fabrics in one or more coats by
rollers, as is well understood, or by other suitable means.
We have now particularly described our Invention, and the mode of
carrying the same into effect, and claim as our Invention the improved
composition herein-before described or any composition substantially the
same where glue or gelatine is combined with resins for the purposes
herein, before mentioned.
In witness whereof, we, the said William Henry Hunstone and
John Thorpe, have hereunto set our hands and seals, this Thirtieth
day of March, in the year of our Lord One thousand eight hundred
W. H. HUNSTONE. (L.S.)
JOHN THORPE.
(L.S.)