AN IMPROVED METHOD OF MANUFACTURING INDIA-RUBBER TUBES AND VARIOUS ARTICLES
Year: 1860

page_text: LETTERS PATENT to Jean Baptiste Jules Noirot, of Paris, in the French
Einpire, Manufacturer, for the Invention of "AN IMPROVED METHOD OF
MANUFACTURING INDIA-RUBBER TUBES AND VARIOUS ARTICLES,"
Sealed the 18th January 1861, and dated the 23rd July 1860.
PROVISIONAL SPECIFICATION left by the said Jean Baptiste Jules Noirot
at the Office of the Commissioners of Patents, with his Petition, on
the 23rd July 1861.
I, JEAN BAPTISTE JULES NOIROT, of Paris, in the French Empire, Manu-
facturer, do hereby declare the nature of the said Invention for "Av IMPROVED
METHOD OF MANUFACTURING INDIA-RUBBER TUBES AND VARIOUS ARTICLES," to be us
follows:-
This Invention consists in vulcanizing the rubber in two operations, and in
working and shaping it between the first and second operations, as hereafter
explained. After the semi-vulcanization, that is to say, after the lapse of
aboutone-half of the time necessary for complete vulcanization in the ordinary
nanner, the rubber preserves its adhesion, but loses the property of becoming
puffed or swelled out when subjected to the second half of the vulcanizing
operation. During the first half of the vulcanizing the rubber takes under
pressure any form or impression desired to be given to it. After the semi-
vulcanization, should the article require it, the parts are united into the shape
it is intended it should preserve, and it is subjected to the remaining half

page_text: of the vulcanizing process, but this time free of cloths, moulds, or other
appendages.
I carry my Invention into effect as follows:- I take a sheet of rubber and
roll it tightly in a cloth or in a sheet of metal, according to the pattern or the
parts to stand in relief in the articles to be manufactured. I submit this sheet to
semi-vulcanization bysteam in a stove in boiling water bysulphur or otherwise;
I next in the ordinary manner of manufacturing the articles to be produced,
make the joints by fire, that is, by softening the edges of the rubber and
uniting them by direct fusion; I then complete the vulcanization by again
submitting the articles deprived of cloths, moulds, mandrils, and other
appendages to the remaining half of the vulcanizing process.
To manufacture tubes of any length 1 roll up the sheet rubber into lengths
of about two, three, four, or five yards, place them upon mandrils or bars and
roll them in cloths, then subject them to the semi-vulcanization; after which
I remove the mandrils and cloths, and unite length to length, by fusing the
ends, and thus obtain a tube of any length required, 20, 50, and 100 yards
and upwards. I roll the tube upon a drum or otherwise, and complete the
vulcanization.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jean Baptiste Jules Noirot in the Great Seal Patent Office
on the 23rd January 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JEAN
BAITISTE JULES NOIROT, of Paris, in the French Empire, Manufacturer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of July, 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
me, the said Jean Baptiste Jules Noirot, Her special licence that I, the said
Jean Baptiste Jules Noirot, my executors, administrators, and assigns, or such
others as I, the said Jean Baptiste Jules Noirot, 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 Inven-
tion for "AN IMPROVED METHOD OF MANUFACTURING INDIA-RUBBER TUBES AND

page_text: VARIOUS ARTICLES," upon the condition (amongst others) that I, the said
Jean Baptiste Jules Noirot, my executors or administrators, by an instru-
ment 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 im-
mediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Jean Baptiste Jules Noirot, do hereby
declare the nature of the 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:-
This Invention consists in vulcanizing the rubber in two operations, and in
working and shaping it between the first and second operations, as hereafter
explained. After the semi-vulcanization, that is to say, after the lapse of
about one-half of the time necessary for complete vulcanization in the ordinary
manner, the rubber preserves its adhesion, but loses the property of becoming
puffed or swelled out when subjected to the second half of the vulcanizing
operation. During the first half of the vulcanizing the rubber takes under
pressure any form or impression desired to be given to it. After the semi-
vulcanization, should the article require it, the parts are united into the shape
it is intended it should preserve, and it is subjected to the remaining half of
the vulcanizing process, but this time free of cloths, moulds, or other
appendages.
I
I carry my Invention into effect as follows:-I take a sheet of rubber and
roll it tightly in a cloth or in a sheet of metal, according to the pattern or the
parts to stand in relief in the articles to be manufactured. I submit this
sheet to semi-vulcanization by steam in a stovein boiling water by sulphur, or
otherwise; I next proceed in the ordinary manner of manufacturing the
articles to be produced; I make the joints by fire, that is, by softening the
edges of the rubber and uniting them by direct fusion; I then complete the
vulcanization by again submitting the articles deprived of cloths, moulds, man-
drils, and other appendages to the remaining half of the vulcanizing process
To manufacture tubes of any length I first form tubes in lengths of about
two, three, four, or five yards, place them upon mandrils or rods, and roll
them in cloths as is ordinarily done; then subject them to the semi-vul-
canization, after which I remove the mandril and cloths, and unite length to
length, by fusing the ends, and I thus obtain a tube of any length required,
twenty, fifty, and one hundred yards. I roll the tube upon a drum or other-
wise, and complete the vulcanization.

page_text: 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
method of manufacturing india-rubber tubes and other articles, that is to say,
the vulcanization thereof in two operations, and the soldering or uniting of the
parts to be united to form the tubes and other articles between the twoopera-
tions, substantially in manner before described.
In witness whereof, I, the said Jean Baptiste Jules Noirot, have hereunto
set my hand and seal, this Eighteenth day of January, One thousand
eight hundred and sixty-one.
Witness,
Cit. ARMENGAUD, Ing². Civil,
Boulevart de Strasbourg, No. 23,
à Paris.
J. B. J. NOIROT. (L.s.)