AN IMPROVED COMPOSITION OR MATERIAL TO BE EMPLOYED IN WATERPROOFING OR RENDERING WOVEN FABRICS IMPERVIOUS TO MOISTURE
Year: 1865

page_text: LETTERS PATENT to Henry Francis Smith, of Manchester, in the County
of Lancaster, India-rubber and Gutta Percha Manufacturer, for the
Invention of "AN IMPROVED COMPOSITION OR MATERIAL TO BE EMPLOYED
IN WATERPROOFING OR RENDERING WOVEN FABRICS IMPERVIOUS TO
MOISTURE."
Sealed the 20th March 1866, and dated the 6th October 1865.
PROVISIONAL SPECIFICATION left by the said Henry Francis Smith at
the Office of the Commissioners of Patents, with his Petition, on the
6th October 1865.
I, HENRY FRANCIS SMITH, of Manchester, in the County of Lancaster,
India-rubber and Gutta Percha Manufacturer, do hereby declare the nature'
of the said Invention for "AN IMPROVED COMPOSITION OR MATERIAL TO BE
EMPLOYED IN WATERPROOFING OR RENDERING WOVEN FABRICS IMPERVIOUS TO
MOISTURE," to be as follows:-
The Invention relates to a composition or mixture of materials which are
to be applied to woven fabrics to render them impervious to moisture, such
as for hose pipes, tarpauling covers for carriages, stacks, or for similar
purposes.

page_text: The improved composition consists of the following materials, which are to
be thoroughly incorporated together in about the following proportions:-Take
of linseed oil one gallon, to which add resin, two pounds, and caoutchouc or
india-rubber previously dissolved in mineral naptha, two pounds, in order to give
the compound its drying properties, add two pounds of litherage, litharge, or
similar preparation of lead. Coloring matters may be added in any required
quantities, and when the said composition is applied to the surfaces and caused
to permeate woven fabrics it will, when dry, render them impervious to
moisture, and prevent them becoming rotten.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Francis Smith in the Great Seal Patent Office on the
5th April 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
FRANCIS SMITH, of Manchester, in the County of Lancaster, India-rubber
and Gutta Percha Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of October, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-ninth year of Iler
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Henry Francis Smith, Her special license that I, the said Henry
Francis Smith, my exécutors, administrators, and assigns, or such others as
I, the said Henry Francis Smith, 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 "AN
IMPROVED COMPOSITION OR MATERIAL TO BE EMPLOYED IN WATERPROOFING OR
RENDERING WOVEN FABRICS IMPERVIOUS TO MOISTURE," upon the condition
(amongst others) that I, the said Henry Francis Smith, 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 NOW
that't the said To Emancic Smith do hereby

page_text: declare the nature of 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):
The Invention relates to a composition or mixture of materials which are
to be applied to woven fabrics to render them impervious to moisture to such
as for hose pipes, tarpauling covers for carriages, stacks, or for similar
purposes.
The improved composition consists of the following materials which are to
be thoroughly incorported together in about the following proportion :-Take
of linseed oil, either in a raw, boiled, or previously oxidized state, about one
gallon, to which add of a resin of any description about two pounds, and
caoutchouc or india-rubber previously dissolved in mineral naptha, about two
pounds; when raw oil is used in order to give the compound its drying
properties, add two pounds of litherage, litharge, or similar preparations of
Head or other well known dryers. Coloring matters may be added in any
required quantities, and when the said composition is applied to the surfaces
and caused to permeate woven fabrics, it will when dry render them impervious
to moisture and prevent them becoming rotten. Although I have given a
preference to the use of linseed oil from its better drying properties, yet I am
aware that other vegetable oils having drying properties may be used for the
aforesaid purpose.
In order to accelerate the process of drying, and in order that the oxidation
of the oils may not take place after their application to any fabric, I prefer to
oxidize the oils before such application, which may be effected by well known
means, and in such instances the addition of litharge or other "driers
before given is not necessary.
In witness whereof, I, the said Henry Francis Smith, have hereunto
set my hand and seal, this Third day of April, in the year of our Lord
One thousand eight hundred and sixty-six.