IMPROVEMENTS IN BRINE HEATERS' AND EVAPORATING PANS AND APPARATUS, AND THE MODE OF CONSTRUCTING THE FURNACE FOR THE SAME
Year: 1872

page_text: LETTERS PATENT to Martin Benson, of No. 9, Southampton Build- :
ings, London, for the Invention of "IMPROVEMENTS IN BRINE HEATERS'
AND EVAPORATING PANS AND APPARATUS, AND THE MODE OF CONSTRUCTING THE
FURNACE FOR THE SAME."-A communication from abroad by Martin
Daton Horns of Sonfarth Ontario Canada Rankov
Sealed the 30th July 1872, and dated the 16th March 1872.
PROVISIONAL SPECIFICATION left by the said Martin Benson at the
Office of the Commissioners of Patents, with his Petition, on the
16th March 1872.
I, MARTIN BENSON, of No. 9, Southampton Buildings, London, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
BRINE HEATERS AND EVAPORATING PANS AND APPARATUS, AND THE MODE OF CON-
STRUCTING THE FURNACE FOR THE SAME," a communication from abroad by
Martin Peter Hayes, of Seaforth, Ontario, Canada, Banker, to be as
follows:-
in
The principal object of my Invention is to economise fuel
evaporating brine for making salt, and to improve the quality of the
salt.
-
:

page_text: A. portion of my Invention consists in constructing external chambers
round the furnace walls for retaining and utilizing the heat which is
radiated from the sides of the furnace walls and is lost.
Another portion of my Invention consists in supplying these heat
retaining chambers with a system of metal pipes and tanks passing
through the chambers, and also under the furnaces and through the
flues. The object of this is to pass the brine through these pipes
and tanks before. it. is. admitted on the pans, so that the brine is
heated by means of the. heat, which would otherwise be lost by
radiation.
Another portion of my Invention is the manner of constructing the
pan for exposing the greatest possible extent of its surface to the action
of heat, and for facilitating the drawing of the. salt from the
pans.
This
is done by slanting the edge of the pan from the outside edge of the
furnace walls to the inside edge of the. walls of the heat chamber at
an angle of about 60 degrees more or less, and providing an extra flange
at the top of the side of the pan, which flange rests on the outside
walls of the chambers and furnishes a convenient mode of attaching the
platform towards the pan, it also prevents the leakage of brine, which
in ordinary furnaces is very injurious to the walls.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Martin Benson in the Great Seal Patent Office
on the 2nd September 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MARTIN
BENSON, of No. 9, Southampton Buildings, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her.
Letters Patent, bearing date the Sixteenth day of March, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did; for Herself, Her-heirs and successors,
give and grant unto me, the said Martin Benson, Her special licence that a
I, the said Martin Benson, my executors, administrators, and assigns, or
such others as I, the said Martin.Benson, 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,

page_text: 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 BRINE HEATERS AND.
EVAPORATING PANS AND APPARATUS, AND THE MODE OF CONSTRUCTING THE FURNACE:
FOR THE SAME," a communication to him from abroad by Martin Peter
Hayes, of Seaforth, Ontario, Canada, Banker, upon the condition (amongst
others) that I, the said Martin Benson, 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 Martin Benson, do hereby declare the
nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement :-
:-
The principal object of my Invention is to economise fuel in
evaporating brine for making salt, and to improve the quality of the.
salt.
A portion of my Invention consists in constructing external chambers:
round the furnace walls for retaining and utilising the heat which is
radiated from the sides of the furnace walls and is lost.
Another portion of my Invention consists in supplying the heat-
retaining chambers with a system of metal pipes and tanks passing
through the chambers and also under the furnaces and through the
flues. The object of this is to pass the brine through these pipes
and tanks before it is admitted on the pans, so that the brine is
heated by means of the heat, which otherwise would be lost by
radiation.
Another portion of my Invention is the manner of constructing the
pan or pans for exposing the greatest possible extent of its surface to
the action of heat, and for facilitating the drawing of the salt from the
pans; this is done by slanting the edge of the pan from the outside
edge of the furnace walls to the inside edge of the walls of the heat
chamber at an angle of about 60 degrees, more or less, and providing
an extra flange at the top of the side of the pan, which flange rests
on the outside walls of the chambers and furnishes a convenient mode

page_text: of attaching the platform or floor to the pan, it also prevents the
. leakage of brine, which in ordinary furnaces is very injurious to the
walls.
In order to give a fuller understanding of my improvement, reference.
is here made to the accompanying Drawings forming part of this and
the subsequent portion of this Specification, and to the letters of
' reference marked thereon. Similar letters refer to corresponding parts.
Fig. 1 represents a top view of the furnace with the evaporating pans
removed shewing the course of the flues and arrangement of piping for
heating the brine previous to it entering the pans; Fig. 2 is a longi-
tudinal sectional elevation of the furnace and pans; Fig. 3 is a trans-
verse sectional view of the furnace through the line A, A; and Fig. 4
is a transverse section through the line B, B.
"block
Fig. 1 represents a plan of what is usually termed in the art a
of furnaces." c, c, c, are three separate furnaces enclosed by walls;
9, 9, are the outside walls of the furnace, and I, I, are heating chambers
between the walls g, g, and the outer walls E, E. The front end of the
block is furnished with partition walls h, h, h, h, extending up to the
pan D for the pan to rest on, and to form the flues o, o, o, o, o, through
which the heat passes to the after end of the block and up the chimney F.
The heat is distributed under the after pan D' by the transverse
¨walls J, J, alternately extending from the sides and centres of the
inside of the furnace, as fully represented in Fig. 1 by the spears. The
brine to be evaporated is first passed into the pipe at W, and enters
the pipe P in the heating chamber I. Usually several lengths of the
pipe P are placed in the heating chambers for the purpose of absorbing
as much of the heat from the chamber as possible, these pipes are then
connected with the pipes in the flues o, o, which are usually embedded
in sand a few inches deep at the bottom of the flues, as represented in
Fig. 4; the brine is made to flow through these pipes into pipes P on
the opposite side of the furnace to where it enters at W, and it is dis-
charged from the pipes into the H₁ side of the tank; this tank H, H',
.extends up on each side and under the bottom of the furnace, as fully
represented in Fig. 3. The H side of this tank is provided with a pipe
and cock K for discharging the brine into the pan D, as represented in
Fig. 2, after the brine has been heated by passing through the pipe.
By thus passing the brine through the pipes P, P, placed in the heating
chambers I, I, and flues o, o, and from the pipes into the tank H, H',

page_text: as described, the brine is made to absorb the heat from the chamber,
flues, and sides and bottom of the furnace, which would otherwise be
lost.
Hand holes ff, f, are made in the tank H at the bottom of the
furnace for cleaning the tank out when necessary. Arches S are built
into the furnace walls, as represented in Fig. 2, to prevent the weight of
the walls and pan from resting on the tank H, H³, or if desired supports
or chambers may be attached to the top of the tank H between the
furnaces c, c, and made to extend up for the pan to rest on instead of
resting on the walls h, h; in such cases these supports would form part
of the tank. One, two, or more pans may be used in the same block of
furnaces if desired. If desired the outer walls opposite the tanks at the
side of the furnace may be dispensed with and the ends of the tank
made to serve as walls to the furnace.
The angleing shape given to the edges of the pan or pans as fully
shewn in Figs. 3 and 4, is done for exposing the greatest possible surface
of the pan to the action of the heat by extending it over the heat-
retaining chambers I, I', and also to facilitate scraping the salt out of
the pan by avoiding sharp angles at its edges. Openings are built in
the side of the walls at R, R, for getting to the after ends of the pipes
in the heat-retaining chambers I, I, and flues o, o, and also for cleaning
out the flues under the pans.
The accompanying Drawings are made to a scale of one quarter of an
inch to a foot, however I don't confine myself to any particular dimen-
sions or proportions of parts in constructing the improvement. A less
or a greater number of pipes and flues may be used if desired, and the
block of furnaces may be made of any dimention in its length and width
that may best suit the purpose for which it is made.
Having described the nature of my Invention, what I claim is,-
Firstly. The heat-retaining chambers I, I, on the outside of the
furnace walls, as represented and described.
Secondly. The pipes in the heat-retaining chambers I, I, and flues o, o,
and the tank H, H', at the side and bottom of the furnace for passing the
brine through them previous to it entering the pan for reclaiming the
heat, in the manner and for the purposes before described.
Thirdly. The manner of forming and constructing the edges of the
pans for expansing the greatest possible amount of their surface to the

page_text: action of the heat in the heat-retaining chamber, and to facilitate
scraping the salt therefrom, in the manner and for the purpose before
described.
In witness whereof, I, the said Martin Benson, have hereunto set my
hand and seal, this Second day of September, in the year of our 5
Lord One thousand eight hundred and seventy-two.