IMPROVED APPARATUS FOR OBTAINING EXTRACTS
Year: 1858

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Mechanical Draughts-
man, for the Invention of "IMPROVED APPARATUS FOR OBTAINING EXTRACTS
Sealed the 16th April 1859, and dated the 9th November 1858.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton
at the Office of the Commissioners of Patents, with his Petition,
on the 9th November 1858.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane,
in the County of Middlesex, Mechanical Draughtsman, do hereby declare
the nature of the said Invention for "IMPROVED APPARATUS FOR OBTAINING
EXTRACTS OR DECOCTIONS," to be as follows:-
This Invention relates to a novel method of applying and arranging a steam
pipe and syphon in combination with a boiler and condenser for the purpose of
condensing the vapors evolved in the boiling of coffee or other substances to
obtain decoctions, and the return of the condensed vapors to the boiler for the
purpose of preserving the aromatic and other properties extracted by the
boiling process.
of
In applying this Invention for the preparation of coffee, the boiler may be
any approved form commonly employed for coffee pots, and fitted with a
spout which is to be closed by a cap or stopper to prevent the escape of steam

page_text: therefrom during the boiling process. A strainer fits into the boiler to contain
the coffee or substance from which the extract is to be made, and it is
supported in place by resting on a lip or flange formed round the upper part
of the interior of the boiler; the strainer is therefore moveable, and can be
omitted from the boiler, if desired. A cylindrical or other suitably formed
vessel is made to fit tightly into or over the open top of the boiler, and is
furnished with a cover that also fits the boiler. This vessel which may be
termed the condenser "should have its bottom convex on its upper surface,
from the centre of which rises a steam pipe of a syphon shape..
Attached to the bottom of the condenser is also a syphon proper, the
shorter leg of which terminates as near as convenient to the bottom of the
condenser that it may draw off all the contents of that vessel, and its longer
leg passes some distance through the said bottom into the boiler. The top of
the steam pipe must stand some distance higher than that of the syphon.
There are two modes of using this apparatus. In the first the required
quantity of water, either cold or hot, is put into the boiler, and the coffee
.inserted or placed in the boiler, either with or without the intervention of the
strainer. The spout is then stopped, and the condenser put on the boiler, with
a quantity of cold water in it sufficient to reach a short distance above the end
of the steam pipe. Heat is now applied to the boiler, and the steam arising
from the boiler passes over by the steam pipe into the water in the condenser,
which condenses it and absorbs the volatile product evolved.
When the substance has been boiled sufficiently, a little water is poured on
the steam pipe and syphon, whereby the steam in the boiler is condensed, and
a partial vacuum formed therein, which vacuum causes the syphon to be
instantly charged and to draw off all the contents of the condenser into the
boiler. The boiling is thus suddenly checked, and the whole of the decoction
is caused to settle perfectly clear, ready for use.
The other mode is to put the coffee or other substance and the water into
the boiler, as in the first mode, and then to fill the condenser with water to a
little below the bend of the syphon, and place it on the boiler, and to boil the
contents of the boiler until the steam arising therefrom, and passing into and
condensing in the condenser, raises the water therein to the level of the syphon,
when the latter becomes charged, and immediately drains the condenser into
the boiler.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Vincent Newton in the Great Seal Patent Office on
the 9th May 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRed
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the County
of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of November, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Alfred Vincent Newton, Her special license that I, the said
Alfred Vincent Newton, my executors, administrators, and assigns, or such
others as I, the said Alfred Vincent Newton, 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 "IMPROVED APPARATUS FOR OBTAINING EXTRACTS OR DECOCTIONS;"
being a communication from abroad, upon the condition (amongst others) that I,
the said Alfred Vincent Newton, by an instrument in writing under my hand and
seal, should particularly describe and ascertain the nature of the said Inven-
tion, 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 Alfred Vincent Newton, 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, reference being had to the Drawing hereunto annexed,
and to the letters and figures marked thereon.(that is to say) :-
This Invention, as communicated to me by my foreign correspondent,
relates to a novel method of applying and arranging a steam pipe and syphon
in combination with a boiler and condenser, for the purpose of condensing the
vapors evolved in the boiling of coffee or other substances (to obtain decoctions
for drink or aliment, or for medicinal or other purposes), and returning the
condensed vapors to the boiler, thereby preserving all the aromatic principle
and other properties extracted by the boiling process.
In the accompanying Drawing the Invention is illustrated in connection
with a coffee pot, but apparatus constructed on a precisely similar, principle

page_text: may, however, be used for obtaining decoctions or extracts from various
substances.
Fig. 1 is a side view; Fig. 2, a central vertical section of the coffee pot and
its appurtenances; and Fig. 3 is a plan view of the condenser with the cover
removed. Similar letters of reference indicate corresponding parts in the
several Figures.
A represents the boiler, which may be made of any of the forms commonly
employed for coffee pots, and with the usual spout a, which is fitted with a cap
or stopper b, to prevent the escape of steam therefrom during the boiling
process; B is a strainer fitted into the boiler to contain the coffee or substance
from which the decoction or extract is to be made. This strainer is made with
an external flange c round the top, to rest on a flange d formed round the
upper part of the interior of the boiler, and is therefore removable, and can
be omitted from the boiler, if desired; C is a cylindrical vessel, or it may be
of other suitable form made to fit tightly into or over the open top of the
boiler and fitted with a cover D, which also fits the boiler. This vessel C,
which may be termed the "condenser," is formed with a convex bottom e, and
from its centre rises a steam pipe E of a syphon shape. One leg of the steam
pipe E terminates in the bottom e, and the other leg within the condenser C,
near the bottom. Attached to the bottom of the condenser is also a syphon F,
the shorter leg of which terminates as near as convenient to the bottom of the
condenser, that it may draw off all the contents of that vessel, and its longer
leg passes some distance through the bottom into the boiler. The top of
the steam pipe E must stand some distance higher than that of the
syphon F.
There are two modes of using this apparatus, both of which shall be now
described. In the first the required quantity of water, either cold or hot, is
put into the boiler A, and the coffee or other substance is either put into the
strainer and the strainer put in the boiler, or it is placed in the boiler without
the intervention of the strainer. The spout a is then stopped with the cap b,
and the condenser C put on the boiler, with a quantity of cold water in it,
sufficient to reach a short distance above the end of the steam pipe E, and
the boiler is put on the fire and its contents made to boil as long as desired.
The steam arising from the boiler passes over through the pipe E into the
water in the condenser, which condenses it and absorbs all the aromatic or
other principle or other volatile product evolved with the steam in the boiler.
When the substance has been boiled sufficiently, a little cold water is poured
on the steam pipe E and syphon F, whereby the steam in the boiler is con-
densed and a partial vacuum formed therein, which vacuum causes the

page_text: syphon F to be instantly charged and to draw off all the contents of the
condenser into the boiler. The boiling is thus suddenly checked, and the
whole of the decoction is caused to settle perfectly clear, ready for use.
The other mode is to put the coffee or other substance and the water into
the boiler, as first explained, and then to fill the condenser with water to a
little below the bend of the syphon F, and place it on the boiler, and to boil
the contents of the boiler until the steam arising therefrom and passing into
and condensing in the condenser, raises the water therein to the level of the
syphon F, when the latter becomes charged and immediately empties the
contents of the condenser into the boiler, leaving the decoction ready for use.
In this mode the time of boiling is regulated by the quantity of water first put
into the condenser. If this be filled nearly to the bend of the syphon, a short
time will be sufficient for the condensed steam to raise the level high enough
to cause the charging of the syphon, but if only a small quantity be put in,
the time will be much longer. By varying the quantity of water put into
the condenser, the operation may be completed in from two to thirty
minutes.
Having now set forth the nature of the Invention of improved apparatus
for obtaining extracts or decoctions, as communicated to me from abroad,
and explained the manner of carrying the same into effect, I wish it to be
understood that I do not confine myself to the particular form of any portion of
the within-described apparatus so far as the same admits of variation without
departing from the principle of its action; but what I claim under the above
in part recited Letters Patent, is, the arrangement of the syphon-like steam
pipe in combination with the boiler and condenser, and syphon for discharging
the contents of the condenser into the boiler as above described.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto
set my hand and seal, this Ninth day of May, in the year of our
Lord One thousand eight hundred and fifty-nine.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
A. V. NEWTON. (L.S.)