AN IMPROVED APPARATUS FOR EXTRACTING THE SOLUBLE MATTERS FROM WOOD OR OTHER SUBSTANCES
Year: 1874

page_text: LETTERS PATENT to Paul Chenaillier, of No. 7, Place Voltaire, Paris,
in the Republic of France, Civil Engineer, for the Invention of
"AN IMPROVED APPARATUS FOR EXTRACTING THE SOLUBLE MATTERS FROM
WOOD OR OTHER SUBSTANCES."
Scaled the 9th February 1875, and dated the 13th August 1874.
PROVISIONAL SPECIFICATION left by the said Paul Chenaillier at the
Office of the Commissioners of Patents, with his Petition, on the
13th August 1874.
I, PAUL CHENAILLIER, of No. 7, Place Voltaire, Paris, in the Republic
of France, Civil Engineer, do hereby declare the nature of the said
Invention for "AN IMPROVED APPARATUS FOR EXTRACTING THE SOLUBLE MATTERS
FROM WOOD OR OTHER SUBSTANCES," to be as follows, that is to say:-
This Invention relates to a peculiar construction of apparatus for
extracting the soluble matters from wood and other substances, and
consists in the employment of a series of wood or metal cylinders
oscillating on a transverse axis.

page_text: Each cylinder is provided with a double bottom perforated with holes,
from which double bottom extends a tube larger at bottom than at top
and open at the upper part. Steam is conveyed through a tube under
this double bottom.
I place between the centre tube and the sides of the cylinder the
wood, shavings, powder, refuse, begass, or other analogous substance
from which the soluble matters are to be extracted.
I pour water
therein and introduce the steam. The water will be drawn through the
centre tube and will run over the top on to the wood or other substance
under operation, and will return to its starting point after passing
through the double bottom. After this circulating action has been kept
up a sufficient time, the liquor is poured into the succeeding cylinder,
and so on, the empty cylinder receiving the water from the preceding
cylinder, the extraction of the matters is thus rendered continuous.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Paul Chenaillier in the Great Seal Patent Office on
the 13th February 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PAUL
CHENAILLIER, of No. 7, Place Voltaire, Paris, in the Republic of France,
Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of August, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Paul Chenaillier, Her special licence
that I, the said Paul Chenaillier, my executors, administrators, and
assigns, or such others as I, the said Paul Chenaillier, 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
APPARATUS FOR EXTRACTING THE SOLUBLE MATTERS FROM WOOD OR OTHER SUB-
STANCES," upon the condition (amongst others) that I, the said Paul

page_text: Chenaillier, 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 KNOW YE, that I, the said Paul Chenaillier, 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 :-
My Invention relates to a new and improved apparatus for extracting
the colouring matter of dye woods and the juices contained in plants in
general, and principally in bagauze.
The improvements made up till now in apparatus constructed for this
purpose have not attained the end desired, viz., to extract completely
with the smallest possible quantity of water the substances just men-
tioned, in order greatly to economise time and fuel, since the chief point
is to bring the extracting liquids up to the degree of density required
for the sale.
My improved apparatus appears to me to combine all the required
conditions which have been sought so long.
It is represented in the Figures of the accompanying Drawing, to
which reference is made in order to make my Invention and the mode
of working the same better understood.
A is a sectional view of a vat or recipient made either of wood or of
any suitable metal suspended on its two iron axes, which allow it to have
a rocking motion.
B is a pipe through which the liquid ascends, the said pipe being
covered by a cap, which, owing to its spherical form, forms the sheet of
liquid intended by its renewed passing through the substances to be
treated, to carry with it and dissolve the substances to be extracted.
This pipe is provided at the lower end with an upturned cone fixed on
the double bottom O and at the upper part with a double cock.
b is a pipe instead of the tube B above described, through which the
liquid ascends and runs from one vat or recipient to another, and thus

page_text: H is a pipe along the front of the vats, and through which the liquids
when sufficiently saturated run from the said vats to reservoirs.
I, I, I, I, are a pump and pipes, by means of which the less saturated
liquids are raised from one vat into another to get furthur saturated.
J, J, J, are several plan views of the vats.
K, L, M, are pipes above the said vats, and by which the clear water,
the liquid to be treated, and the steam come.
Mode of Working.-The vat A. is filled with the substance to be
treated, which is covered with a sufficient quantity of water; then the
whole is heated by means of the steam running through the worm D,
the extracting water having reached the necessary degree of heat
increasing in volume, and raised moreover by the action of the steam,
rises in the ascending pipe B and is spread like a sheet over the sub-
stances to be treated, penetrates and passes through them, and enters
again the double bottom through the perforations in it, in order to rise
again through the same pipe, and to be spread anew over the said
substances, and so on until they are entirely used up.
Although in the accompanying Drawings I have only shewn four
vessels, yet I should add that by increasing their number a much more
perfect extraction is obtained, and also if instead of placing the said vats
in a line, they are placed circularly, and so that they can move on a
turning plate, it is preferable in several respects for the work.
Having thus described the nature of my Invention and the manner of
carrying it into effect, I would have it understood, that I do not confine
myself to the precise details above enumerated, as these may obviously be
modified without departing from the principle of the Invention; but
what I claim is, an improved apparatus for extracting the soluble matters

page_text: from woods or other substances, substantially as above described and
illustrated in the accompanying Drawings.
In witness whereof, I, the said Paul Chenaillier, have hereunto set
my hand and seal, this Tenth day of February, in the year of
our Lord One thousand eight hundred and seventy-five.