IMPROVE- MENTS IN RENDERING TEXTILE SUBSTANCES WATER AND DAMP PROOF
Year: 1874

page_text: LETTERS PATENT to Gédéon Griot and Louis Polito, Merchants, of
·
Boulevart Voltaire, Paris, France, for the Invention of "IMPROVE-
MENTS IN RENDERING TEXTILE SUBSTANCES WATER AND DAMP PROOF."
Sealed the 22nd January 1875, and dated the 7th August 1874.
PROVISIONAL SPECIFICATION left by the said Gédéon Griot and
Louis Polito at the Office of the Commissioners of Patents, with
their Petition, on the 7th August 1874.
We, GEDEON GRIOT and LOUIS POLITO, Merchants, of Boulevart
Voltaire, Paris, France, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN RENDERING TEXTILE SUBSTANCES WATER AND
DAMP PROOF," to be as follows:-
-
The object of this Invention is to render textile substances and
clothing of all kinds impermeable and damp proof, and. at the same
time healthy to the wearer, without injury to tho-fabric, whilst being
perfectly inodorous.
.

page_text: The process is as follows:-A trough or vat of dimensions propor-
tionate to the quantity of material to be operated on is filled with pure
water, to which is added a quantity of alum, regulated in accordance
with the volume of water. This addition of alum is intended to preparo
the water bath for the reception of other matters hereafter mentioned,
so that the composition may be made under the most advantageous cir-
cumstances, and before the introduction of the other ingredients in the
bath a certain time is allowed to clapso to admit of the completo solution
of the alum. When this is effected a proportionate quantity of acetate
of load is placed in the bath. With this matter the liquid composition
attains the properties of impermeability, but in order to give it greater
consistency and insure a certain and satisfactory result, a further
addition of ingredients is made to the bath consisting of matters known
in commerce as moss, commonly known as the fucus crispus or lichen,
Carragahen moss, found on rocks in the sea, and sal ammoniac. When
the bath is thus established the articles to be rendered impermeable aro
placed therein, and allowed to remain till thoroughly and sufficiently
saturated, when they are withdrawn and allowed to dry, when they will
possess all the requisite qualities of perfect impermeability.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Gédéon Griot and Louis Polito in the Great Seal
Patent Office on the 4th February 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, GÉDÉON
GRIOT and LOUIS POLITO, Merchants, of Boulevart Voltaire, Paris,
France, sond greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of August, 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 successors, give and
grant unto us, the said Gédéon Griot and Louis Polito, Her special
licence that we, the said Gedeon Griot and Louis Polito, our executors,
administrators, and assigns, or such others as we, tho said Gédéon Griot,
and Louis Polito, our exccutors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times

page_text: :
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 Ohannel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN RENDERING TEXTILE SUBSTANCES WATER AND DAMP
PROOF," upon the condition (amongst others) that we, the said Gédéon
Griot and Louis Polito, our executors or administrators, by an instru-
ment in writing under our, 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 we; the said Gédéon Griot and Louis Polito,
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 :-
-
This Invention relates to waterproofing various articles, whether for
clothing or other purposes, that is to say, all kinds of tissues susceptible
of damp or moisture from exposure to rain, without injury to the articles
either in appearance or colour, whilst at the same time they are rendered
healthy to the wearer and are perfectly inodourous.
The process is as follows:-A trough or vat of dimensions propor-
tionate to the quantity of material to be operated on is filled with pure
water, to which is added a quantity of alum, regulated in accordance
with the volume of water. This addition of alum is intended to prepare
the bath for the reception of other matters hereafter mentioned, so that
the composition may be made under the most advantageous circum-
stances, and before the introduction of the other ingredients in the bath
a certain time is allowed to clapse to admit of the complete solution of
the alum. When this is effected a proportionate quantity of acetate of
lead is placed in the bath. With this matter the liquid composition
attains the properties of impermeability, but in order to give it greater
consistency and insure a certain and satisfactory result, a further
addition of ingredients is made to the bath, consisting of matters known
in commerce as the fucus crispus moss or lichen, Carraghen moss, found
on rocks in the sea, and of sal ammoniac. When the bath is thus
established, the articles to be rendered waterproof are plunged therein

page_text: and allowed to remain till thoroughly and sufficiently saturated, when
they are withdrawn and allowed to dry, when they will possess all tho
requisite qualities of perfect impermeability, being healthy to wear, and
without detriment to the fabric cither in colour or external appearance,
and totally devoid of smell.
Having thus described our Invention and the mode of carrying it into
effect, wo claim the mode of rendering textile matters water and damp
proof by saturating them in a bath containing alum, acetate of lead,
moss known as fucus crispus, and sal ammoniac, the quantities of such
ingredients being regulated in accordance with the volume of water and 1
the quantity of matter to bo operated on, in the manner and for tho
purposes as hercin-before stated.
In witness whereof, wc, the said Gédéon Griot and Louis Polito,
have hereunto set our hands and seals, this First day of February,
in the year of our Lord One thousand eight hundred and 1
seventy-five.
Witness,
E. HÉBRÉ.
GEDEON GRIOT. (L.s.)
LOUIS POLITO.
(L.S.)