AN IMPROVED CONDENSING APPARATUS
Year: 1862

page_text: LETTERS PATENT to Edward Hunt and Henry Davis Pochin, both of
Salford, in the County of Lancaster, Chemists, for. the Invention of
"AN IMPROVED CONDENSING APPARATUS."
PROVISIONAL SPECIFICATION left by the said Edward Hunt and Henry
Davis Pochin at the Office of the Commissioners of Patents, with their
Petition, on the 27th June 1862.
We, EDWARD HUNT and HENRY DAVIS POCHIN, of Salford, in the County
of Lancaster, Chemists, do hereby declare the nature of the said Invention
for "AN IMPROVED CONDENSING APPARATUS," to be as follows:-
The improvement introduced by this Invention consists in separating and
depositing the resinous or fatty matter which has for the purpose of distillation
been converted into a state of vapor by. an admixture of steam. This
improvement is effected by disposing in the interior of, a metal box, furnished
with metal partitions and surrounded by a water or steam jacket, a series of
perforated copper plates against which the admixture of steam and such
resinous or fatty matters is made successively to impinge and, in, which the
resinous or fatty matters are arrested while the steam is allowed to pass out
of the condenser.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Hunt and Henry Davis Pochin in the Great Seal
Patent Office on the 9th December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
HUNT and HENRY DAVIS POCHIN, both of Salford, in the County of Lan-
caster, Chemists, send greeting. ⚫
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of June, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Edward Hunt and Henry. Davis. Pochin, our executors, administrators,
and assigns, Her special license, full power, sole privilege and authority, that
we, the said Edward Hunt and Henry Davis Pochin, our executors, adminis-
'trators, and assigns, or such others as we, the said Edward Hunt and Henry
Davis Pochin, our executors, administrators, or 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 the Isle of Man, an Invention for "AN
IMPROVED CONDENSING APPARATUS," upon the condition (amongst others) that
we, the said Edward Hunt and Henry Davis Pochin, our executors or
administrators, by an instrument in writing under our, or their, or one of
our or their hands and seals, should particularly describe and ascertain the
'nature of the said Invention, and in what manner the same is to be per-
formed, 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 Edward Hunt and Henry, Davis
Pochin, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed,. to be particularly described and ascer-
tained in and by the following statement (that is to say):-
Our said Invention for an improved condensing apparatus consists in an
improvement in separating and depositing resinous or fatty matter which has
for the purpose of distillation been converted into a state of vapour by an
admixture of steam. This improvement is effected by disposing in the
interior of a metal box, furnished with metal partitions and surrounded by a

page_text: water or steam-tight jacket, a series of perforated copper plates against which
the admixture of steam and such resinous or fatty matters is made successively
to impinge, and in which the resinous or fatty.matters are arrested while the
steam is allowed to pass out of the condenser. The condenser now described
is suitable for use in connection with the mode of distillation described by us
in the Specification of a Patent granted to us, and dated the Twenty-seventh
day of April One thousand eight hundred and fifty-eight, and the dimensions
are those adapted for a still containing when charged about three tons of
resin.
In order that our Invention may be fully understood and readily carried
into effect, we have bereunto attached a Sheet of Drawings, having similar
letters of reference marked upon corresponding parts of the machinery in all
the Figures..
Figure 1 represents a longitudinal vertical section of the apparatus ;
Figure 2 a cross vertical section of the same.
A, A, is a metal box made preferably. of copper as less likely than any
other material to be affected by the action of the vapours to be. condensed,
and enclosed in iron steam-tight jacket B, B; C, C, C, C, C, C, C, are solid
copper plates extending across the entire width of the box and attached
by one or other of their ends to the top and bottom of the box alternately.
D, D, D, D, D, D, D, D, D, D, D, D, are perforated copper plates (about
eighty holes to the square inch), lying like inclined shelves between the
successive pairs of solid plates C, C, and the sides of the box; E, E, E, E,
draw off taps; F, entrance for mixed vapours; G, exit for uncondensed steam
The mode in which the apparatus is used for the purpose of condensing resin
is as follows:-The mixed vapour of steam and resin is passed into the
copper box A, A, at the point F, when by means of the metal partitions it
is compelled to travel upwards and downwards in the vertical partitions, in
which operation the resinous matter is deposited on the under sides of the
perforated copper plates or shelves and the sides of the solid plates, and trickles
down the latter to the bottom of the compartments 0, 0, 0, 0, from which
when cooled it is drawn off by the taps E, E, E, E. The steam which by the
reason of the steam jacket being kept at a temperature above 212° Fahrenheit
has remained uncondensed escapes by the exit pipe at G.
We wish it to be distinctly understood that we do not claim the exact size
or form of condenser here described, but we do claim as the essence of our
Invention the arrangement by which resinous and fatty vapours when mixed
with steam in the process of distillation may be condensed by causing such

page_text: vapours to inipinge frequently against solid surfaces, or pass through minute
orifices, or a combination of these, in the manner previously described.
In witness whereof, we, the said Edward Hunt and Henry Davis
Pochin, have hereunto set our hands and seals, this Nineteenth day
of November, in the year of our Lord One thousand eight hundred
and sixty-two.
Signed, sealed, and delivered by
the said Henry Davis Pochin in
the presence of
THOS. HEELIS,
HENRY DAVIS POCHIN. (L.S.)
EDWARD HUNT.
(L.S.)
Solicitor,
Manchester.
Signed, sealed, and delivered by
the said Edward Hunt, in the
presence of
THOS. HEELIS..