IMPROVEMENTS IN AND APPLICABLE TO PANS FOR BOILING DOWN, REDUCING, OR CONCENTRATING LIQUIDS, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE FOR CONDENSING PROVISIONAL SPECIFICATION
Year: 1873

page_text: LETTERS PATENT to Ellis Marsden, of Liverpool, in the County of
Lancaster, Civil Engineer, for the Invention of "IMPROVEMENTS IN
AND APPLICABLE TO PANS FOR BOILING DOWN, REDUCING, OR CONCENTRATING
LIQUIDS, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE FOR CONDENSING
PROVISIONAL SPECIFICATION left by the said Ellis Marsden at the
Office of the Commissioners of Patents, with his Petition, on the
15th September 1878.
I, ELLIS MARSDEN, of Liverpool, in the County of Lancaster, Civil
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN AND APPLICABLE TO PANS FOR BOILING DOWN, REDUCING, OR
CONCENTRATING LIQUIDS, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE FOR
CONDENSING OR REJECTING LIQUIDS WHILST PRIMING AND BOILING OVER," to be
as follows:-
This Invention relates to certain improvements in and applicable to

page_text: It may be remarked that each part of this Invention may be fitted or
applied together or separately, and applied to new boiling pans or to
pans now in use effecting economy of fuel and labour.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Ellis Marsden in the Great Seal Patent Office
on the 13th March 1874.
4
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ELLIS
MARSDEN, of Liverpool, in the County of Lancaster, Civil Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of September, in the year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Ellis Marsden, Her special licence
that I, the said Ellis Marsden, my executors, administrators, and assigns,
or such others as I, the said Ellis Marsden, my executors, adminis-
trators, 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 "IMPROVEMENTS IN AND APPLICABLE TO
PANS FOR BOILING DOWN, REDUCING, OR CONCENTRATING LIQUIDS, PARTS OF WHICH
IMPROVEMENTS ARE APPLICABLE FOR CONDENSING OR REJECTING LIQUIDS WHILST
PRIMING AND BOILING OVER," upon the condition (amongst others) that I,
the said Ellis Marsden, 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 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 Ellis Marsden, do hereby declare
the nature of my said Invention, and in what manner the same is to be

page_text: This Invention relates to certain improvements in and applicable to
pans for boiling down, reducing, or concentrating liquids, such as pans
used for brewing, distilling, oil and sugar refining, and other like
purposes.
This Invention consists,-
Firstly. In the application or addition of a vertical cone, pipe,
cylinder, or other like projection, which is placed inside the boiling pan
and attached to and opening out at the bottom thereof. The top of this
cone, pipe, cylinder, or other like projection may be fitted with a dome
and pipe to carry off the smoke or gases. This pipe may be fitted with
a suitable damper or draught regulating valve. The pipe may be
carried to any chimney or other suitable outlet. By the addition of the
cone, pipe, cylinder, or other like projection inside the pan greater heating
surface is obtained, also great saving of waste heat and the liquor in the
pan is heated more uniformally. The draught in the cone, pipe, cylinder,
or other projection is regulated by the damper in the before-mentioned
pipe leading from the cone, pipe, cylinder, or other like projection.
The second part of this Invention relates to the addition of a condenser
or rejector to pans which are used for boiling down liquors which prime,
froth, foam, or boil over.
A condenser according to this Invention consists in forming what is
known as the curb of the pan with an outer casing forming a jacket
round the said curb. Through this jacket there is kept a continual flow
or circulation of cold water, so that when the liquor in the pan primes,
froths, foams, or boils over and comes into contact with the curb, the
globules forming the froth or foam are condensed, rejected, and thrown
back on to the liqour boiling in the pan, thus obviating the necessity of
having attendants to beat or keep down the froth as is now the case in
breweries and other works.
The third part of this Invention consists in the application of a coil of
pipe placed inside and round boiling pans near the top thereof, and held
or suspended there by any suitable provisions. This pipe or coil acts as
a condenser or rejector by having a constant stream of cold water passing

page_text: therethrough, and acts in manner similar to the jacketted curb described
in the second part of this Invention.
It may be remarked that each part of this Invention may be fitted or
applied together or separately, and applied to new boiling pans or to
pans now in use effecting economy of fuel and labour.
Pans for boiling down, reducing, or concentrating liquids made
according to this Invention, may be constructed of any suitable material,
such as copper, brass, iron, or other metal, or earthenware.
The beforegoing being the nature, object, and purposes of this
Invention, I will now proceed to describe more in detail how the same
may be carried out into practical effect, and for that purpose I have
hereunto attached a Sheet of Drawings illustrative of my Invention
sufficient to enable any practical engineer to manufacture same.
letters and figures marked on the various views denote similar parts.
Like
Figure 1 is a side elevation of a pan constructed according to this
Invention, shown one half in section and with a double curb condenser
or rejector; Figure 2 is a plan of same; Figure 3 is a side elevation of
a pan constructed according to this Invention with a coil pipe, condenser,
or rejector; Figure 4 is a plan of same.
Upon reference it will be seen that this Invention consists,―
Firstly. In the application or addition to the pan A of a vertical cone,
pipe, or dome fire-box B, with the air tube or pipe C to carry off the
smoke or gas. The pipe C is fitted with a suitable damper or draught
regulating valve D. The pipe C may be continued to any suitable
outlet. It will be seen that the dome fire-box B is rivetted or otherwise
attached to the bottom A¹ of the pan A, and by the addition of the
dome fire-box B inside the pan greater heating surface is obtained, also
great saving of waste heat, and the liquor in the pan is heated more
uniformally. The draught in the fire-box B is regulated by the
damper D.
Secondly. In the application or addition to the pan A of a surface
condenser or rejector formed by the double curb E forming a jacket
round the ordinary curb. Through this jacket there is kept up a
continual flow or circulation of cold water, so that when the liquor in

page_text: the pan primes, froths, foams, or boils over, it comes into contact with
the cold curb, and the globules forming the froth or foam are condensed,
rejected, and thrown back on to the liquour boiling in the pan, thus
obviating the necessity of having attendants to beat or keep down the
froth as is now the case in breweries and other works. F, inlet pipe and
cock for supplying cold water to curb jacket E; G, outlet cock from
curb jacket; H, drain cock from same.
Thirdly. In the application or addition to the pan A of a surface
condenser or rejector formed by the coil pipe K shown at Figures 3
and 4. The coil pipe K acts as a condenser or rejector by having a
constant stream of cold water passing through it, and acts in manner
similar to the jacketted curb E described in the second part of this
Invention..
Having thus stated the nature of my Invention and described a
convenient method of carrying the same into operation, I wish it to be
understood that I do not limit myself to the exact details given, nor to
the dimensions of the several parts, nor to the materials of which pans
are constructed, as the whole may be considerably varied, and I would
also observe that I do not claim the pans A in themselves, but what I
claim as the Invention secured to me by Letters Patent as aforesaid
is,—
Firstly. The application and addition to pans for boiling down,
reducing, or concentrating liquids of a vertical, cone, pipe, or dome fire-
box shown in the accompanying Drawings at B with the tube or pipe C
and the damper D, substantially as set forth and described.
Secondly. The application and addition to pans for boiling down,
reducing, or concentrating liquids of a surface condenser or rejector
formed by the double curb E as shown at Figures 1 and 2 of the accom-
panying Drawings, substantially as set forth and described.
Thirdly. The applicatian and addition to pans for boiling down,
reducing, or concentrating liquids of a surface condenser or rejector
formed by the coil pipe K shown at Figures 3 and 4 of the accompanying
Drawings.
Fourthly. The application or addition of the several improvements in
1
L
1

page_text: liquids, whether used together or separately, or whether applied to new
pans or to pans now in use, substantially in the manner as set forth,
described, and illustrated in the before-going Specification and Drawings.
In witness whereof, I, the said Ellis Marsden, have hereunto set
my hand and seal, this Eleventh day of March, in the year of
our Lord One thousand eight hundred and seventy-four.}
Witness,
JOHN H. REDMOND,'
of 15, Water Street,
Liverpool.
ELLIS (L.S.) MARSDEN.