IMPROVEMENTS IN THE MANUFACTURE OF YARN, AND FABRICATING ARTICLES THEREFROM
Year: 1853

page_text: LETTERS PATENT to Jules Dehau, of 39, Rue Pigale, Paris, for
the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF YARN,
AND FABRICATING ARTICLES THEREFROM."
Scaled the 27th August 1853, and dated the 15th June 1853.
PROVISIONAL SPECIFICATION left by the said Jules Dehau at
the Office of the Commissioners of Patents, with his Petition, on
the 15th June 1853.
I, JULES DEHAU, of 39, Rue Pigale, Paris, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN THE MANUFACTURE
OF YARN, AND FABRICATING ARTICLES THEREPROM," to be as follows:-
This Invention consists of obtaining the fibres from the Lygeum
Spartum, which grows extensively in Algeria and in other countries,
by causing it to be boiled with alkali, rolled or pressed, and then
subjected to hackles or points in like manner to hemp or flax in order
to obtain the fibres in a condition to be spun, and such fibres are to

page_text: be spun into yarn, and made into cordage, ropes, and woven fabrics,
in like manner to that in which hemp and flax have been used.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Jules Dehan in the Great Seal Patent Office,
on the 15th December 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JULES DEHAU, of 39, Rue Pigale, Paris, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of June, in the year of
our Lord One thousand eight hundred and fifty-three, in the six-
teenth year of Her reign, did, for Ierself, Her heirs and successors,
give and grant unto me, the said Jules Dehau, IIer special licence
that I, the said Jules Dehau, my executors, administrators, and assigns,
or such others as I, the said Jules Dehau, my executors, administra-
tors, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein ex-
pressed, 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 "IMPROVEMENTS IN THE
MANUFACTURE OF YARN, AND FABRICATING ARTICLES THEREFROM," upon
the condition (amongst others) that 1, the said Jules Dehau, by an
instrument in writing under my hand and scal, 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 Jules Dehau, do hereby de-
clare 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):

page_text: This Invention consists of obtaining the fibres from the Lygeum
Spartum, which grows extensively in Algeria and in other countries, by
causing it to be boiled with alkali, rolled, pressed, and then subjected
to hackles or points in like manner to hemp or flax in order to obtain
the fibres in a condition to be spun, and such fibres are to be spun into
yarn, and made into cordage, ropes, and woven fabrics, in like manner
to that in which hemp and flax have been used.
Having thus explained the nature of my Invention, I will now
proceed to describe the manner of performing the same.
This plant or rush
The plant is boiled
pearlash in the
The plant,
as is well known, is most frequently found upon uncultivated sandy
mountains, and should be harvested about August.
should be cut about two inches from the ground.
for about six hours in water containing American
proportions of about one ounce to each pint of water. When the plant
has been thus boiled it is subjected immediately, whilst hot, to pressure,
and this is best performed by being passed between pressing rollers
or cylinders. The fibrous materials are then to be boiled for about
two hours with tallow or grease in the proportion of one ounce of
tallow to one pint of water. The fibrous material is next to be boiled
for about a quarter of an hour in water, having therein ordinary
pearlash at the rate of half an ounce for cach pint. The fibres
are then to be separated by being heckled as when treating flax or
hemp, using coarse points, and then finer, according to the degree of
separation desired. The fibre thus obtained is to be thoroughly
washed in cold water, and when the fibres are not reduced to a very
fine state they may be used in substitution of horse hair, and may be
dyed and woven into similar fabrics to those now made from horse
hair; and the fibres, when obtained fine, may be spun into yarn in like
manner to when spinning other fibres of like length and character for
making various manufactures; and the yarns thus made are to be woven
or made into fabrics in like manner to what has heretofore been
practised when using yarns made of flax and hemp.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that what I claim

page_text: is, the application of the fibre of the plant called the Lygeum Spartum
in the manufacture of yarn, and fabricating articles therefrom.
In witness whereof, I, the said Jules Dehau, have hereunto set
my hand and seal, this Fifteenth day of November, in the
year of our Lord One thousand eight hundred and fifty-three.