AN IMPROVED WATER- PROOF COMPOUND FOR SIZING AND COATING LEATHER, WOOD, CLOTHS, OR OTHER ARTICLES
Year: 1874

page_text: LETTERS PATENT to Henry Louis Bageau, of Paris, Rue Bichat,
No. 33, Manufacturer, for the Invention of "AN IMPROVED WATER-
PROOF COMPOUND FOR SIZING AND COATING LEATHER, WOOD, CLOTHS, OR OTHER
ARTICLES."
Sealed the 28th July 1874, and dated the 20th February 1874.
PROVISIONAL SPECIFICATION left by the said Henry Louis Bageau
at the Office of the Commissioners of Patents, with his Petition,
on the 20th February 1874.
I, HENRY LOUIS BAGEAU, of Paris, Rue Bichat, No. 33, Manufacturer,
do hereby declare the nature of the said Invention for "AN IMPROVED
WATERPROOF COMPOUND FOR SIZING AND COATING LEATHER, WOOD, CLOTHS, OR
OTHER ARTICLES," to be as follows:-
The object of my Invention is to make an impermeable mastic; it is
intended to replace the size which has for its solvent sulphuret of carbon,
the odour of which is disagrecable and prejudicial. This mastic may be
used as size, and even as a sort of solder to unite and fix materials of
various kinds. It can also be employed as a preservative coating on
account of its perfect impermeability. Among the numerous articles to
which it may be applied I may mention wood, leather, felt, stuffs, cordage,

page_text: textile fabrics, bands, stones, and especially driving belts, boots and
shoes, furniture, vats, and powder barrels.
The composition of this mastic is as follows.-I take 500 parts of
caoutchouc dissolved to a thick consistence in any suitable essence;
240 parts of dry gutta percha; 100 parts of resin, soft or brittle
according to the use for which the mastic is intended; 200 parts of
white lead (blanc de ceruse ou blanc de neige); and 400 parts of
essence. I add turpentine if I wish to give more suppleness to the
mastic. I well mix all the materials in a hot state and then leave them
to cool. The mixture thus prepared possesses a syrupy consistence; I]
render it fluid and as limpid as may be desired by diluting it in essence.
In employing this mastic I can give a first coat or layer, taking care,
by preference, to heat the parts to be sized in order that the composition
may penetrate better. If necessary after this first coat or layer is
sufficiently dry I apply a second and thicker coat which I again leave to 1
dry. Then I heat over a slow fire or by a bain marie or water bath the
two parts to be united or joined; I place them one upon the other, and
I then hammer them or press them strongly together.
According to the articles to be sized or coated I can make the mastic
more or less elastic by increasing or diminishing the quantity of the 2
brittle or of the elastic materials which enter into the composition of
the mastic.
The mastic may also be used cold, but it then offers less solidity.
The mastic sufficiently thinned may be used to render various surfaces
impermeable.
The proportions herein-before given may be varied according to tho
use to which the mastic or compound is to be applied.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of February, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Henry Louis Bageau, Her
special licence that I, the said Henry Louis Bageau, my executors,
administrators, and assigns, or such others as I, the said Henry Louis
Bagcau, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, tho Channel Islands, and Isle of Man, an Invention
for AN IMPROVED WATERPROOF COMPOUND FOR SIZING AND COATING LEATHER,
WOOD, CLOTHS, OR OTHER ARTICLES," upon the condition (amongst others)
that I, the said Henry Louis Bageau, my executors or administrators,
by an instrument in writing under 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 Henry Louis Bageau, do hereby
declare the nature of my 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 :—
The object of my Invention is to make an impermeable mastic; it is
intended to replace the size which has for its solvent suphuret of carbon,
the odour of which is disagreeable and prejudicial. This mastic may be
used as size, and even as a sort of solder to unite and fix materials of
various kinds. It can also be employed as a preservative coating on
account of its perfect impermeability. Among the numerous articles to
which it may be applied I may mention wood, leather, felt, stuffs,
cordage, textile fabrics, bands, stones, and especially driving belts, boots
and shoes, furniture, vats, and powder barrels.
The composition of this mastic is as follows:-I take 500 parts of
caoutchouc dissolved to a thick consistence in any suitable essence; 240
parts of dry gutta percha; 100 parts of resin, soft or brittle according to
the use for which the mastic is intended; 200 parts of white lead or

page_text: flake white (blanc de ceruse ou blanc de neige); and 400 parts of
essence. I add turpentine if I wish to give more suppleness to the mastic.
I well mix all the materials in a hot state and then leave them to cool.
The mixture thus prepared possesses a syrupy consistence; I render it
fluid and as limpid as may be desired by diluting it in essence.
5
In employing this mastic I can give a first coat or layer, taking care,
by preference, to heat the parts to be sized in order that the composition
may penetrate better. If necessary after this first coat or layer is
sufficiently dry I apply a second and thicker coat, which I again leave
to dry. Then I heat over a slow fire or by a bain marie or water bath
the two parts to be united or joined; I place them one upon the other
and I then hammer them or press them strongly together.
According to the articles to be sized or coated I can make the mastic
more or less elastic by increasing or diminishing the quantity of the
brittle or of the elastic materials which enter into the composition of the 1
mastic.
The mastic may also be used cold, but it then offers less solidity.
The mastic sufficiently thinned may be used to render various surfaces
impermeable.
The proportions herein-before given may be varied according to the 2
use to which the mastic or compound is to be applied.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim, the
improved waterproof compound herein-before described.
In witness whereof, I, the said Henry Louis Bageau, have here- 2
unto set my hand and seal, this Twenty-fourth day of June, One
thousand cight hundred and seventy-four.
Witness,
ALBERT CAHEN,
Civil Engineer,
of Boulevard Magenta, 32,
at Paris.
H. L. BAGEAU. (L.S.)