IMPROVEMENTS IN APPARATUS FOR THE PRODUCTION OF HEAT
Year: 1872

page_text: LETTERS PATENT to Joseph Theodore Dann, of 43, Cowley Road,
North Brixton, in the County of Surrey, Civil Engineer, for the
Invention of "IMPROVEMENTS IN APPARATUS FOR THE PRODUCTION OF
HEAT." A communication from abroad by Alexandre Alleau, of
PROVISIONAL SPECIFICATION left by the said Joseph Theodore Dann
at the Office of the Commissioners of Patents, with his Petition, on
the 17th October 1872.
I, JOSEPH THEODORE DANN, of 43, Cowley Road, North Brixton, in
the County of Surrey, Civil Engineer, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN APPARATUS FOR THE PRODUCTION OF
HEAT," being a communication to me from abroad by Alexandre Alleau,
of Pont-Audemer, in the Commonwealth of France," to be as follows:-
:-
This Invention has for its object to provide appropriate means of pro-
ducing heat for industrial and more particularly for distilling purposes
with less expense than by employing or confining oneself to any of the
appliances at present in use. To this end I provide a casing or reservoir
which I fill with hydrocarburet derived from any of the various sub-
stances from which it may be produced, and I connect this reservoir or

page_text: casing by means of a pipe or tube of appropriate size and shapo with a
second tubo by preference of a larger diameter, into which I introduce
steam from a boiler or other generator by means of a pipe connecting
the second tube with the generator. The carburet drawn from the
casing or reservoir having been made to occupy the second tube I cause
the steam derived from the generator to pass through the same, and
having become carbureted in its passage to proceed through a pipe or
other suitable appliance to the hearth, furnace, or fire-grate of the vessel
or vessels to be heated, and thus to impart to such vessel or vessels both
its own inherent and the additional heat it has derived from the process
of carburation. With a view to regulate the proper quantities of carburet
and steam to be intimately mixed I provide suitable taps, cocks, valves,
or other cognate appliances in the proper parts of the apparatus
constructed according to my Invention.
By a modification in the apparatus constructed according to my Inven-
tion I prefer in some cases, and more especially when no boiler or other
steam generator is accessible or near at hand, to provide a special
generator in the shape of a small vessel or recipient of suitable size
and configuration which I expose directly or indirectly to the action of
the fire. I also provide a receptacle or reservoir of water placed in a
convenient position relatively to the vessel or vessels to be heated, and
causing the water to proceed from such reservoir to the recipient afore.
said I evaporate it in the recipient. The steam thus produced I lead
into a tube or pipe with which I connect the pipe proceeding from
another casing or reservoir containing the carburet, and by this means
I obtain the carbureted steam which I lead to the hearth, furnace, or
fire-grate, and inject in the same manner as herein-before described.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Theodore Dann in the Great Scal Patent
Office on the 17th April 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
THEODORE DANN, of 43, Cowley Road, North Brixton, in the County of
Surrey, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, hearing dato the Seventeenth day of October, in the year

page_text: of our Lord One thousand eight hundred and seventy-two, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Joseph Theodore Dann, Her special
licence that I, the said Joseph Theodore Dann, my executors, adminis-
trators, and assigns, or such others as I, the said Joseph Theodore
Dann, 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
"IMPROVEMENTS IN APPARATUS FOR THE PRODUCTION OF HEAT," a communica-
tion to me from abroad by Alexandre Alleau, of Pont-Audemer, in the
Commonwealth of France, upon the condition (amongst others) that I,
the said Joseph Theodore Dann, 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 Joseph Theodore Dann, 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 and accompanying Sheet of Drawings:-
This Invention has for its object to provide appropriate means or
appliances for producing heat for industrial purposes in general, and for
distilling purposes in particular, with less expense than by employing
or confining oneself to any of the heating methods at present in use.
To this end I provide a casing or reservoir which I fill with hydro-
carburet derived from any of the various substances from which it may
be produced or obtained, such as coal tar, or oils, petroleum, naphthaline,
or other similar products. I connect this reservoir or casing by means
of a pipe or tube of appropriate size and shape with a second or com-
mingling tube which I make of a larger diameter, and into which I
introduce steam derived from a boiler or other generator by means of a
pipe connecting the commingling tube with the generator. Owing to
the connection of this commingling tube with the casing or reservoir
containing the hydrocarburet a continuous influx of the carburet into

page_text: this tube will be secured, and the steam derived from the generator
being caused to pass through and commingle with the carburet so as to
be saturated therewith in its passage is thence led through a spout or
mouth piece to the hearth or fire-grate employed for heating one or
more vessels. A fire having been previously kindled on the fire-grate,
the steam impregnated or saturated with carburet will become ignited as
soon as it comes into contact with the flame, and thence act as a means
of heating the vessel or vessels in addition to or in lieu of ordinary fuel.
With a view to regulate the proper quantities of carburet and steam to
be commingled I provide suitable taps, cocks, valves, or other cognate
appliances in the proper parts of the apparatus constructed according to
my Invention, as herein-after more particularly described.
Instead of employing the boiler or other generator usually employed
for producing steam I find it advantageous to use a special generator
which I make in the shape of a small vessel of suitable size and con-
figuration, and which I place or insert in the furnace in such a way as
to keep it constantly exposed to the action of the fire or heat. I also
provide a receptacle, reservoir, or tank of water which may be placed
above the furnace or in any other convenient position relatively to the
vessel or vessels to be heated, and I so connect this water tank with the
small generator by means of a pipe as to keep up a constant supply of
water in the generator. This water being evaporated by the heat to
which the generator is exposed I lead the steam thus produced through
another pipe to the commingling tube herein-before mentioned, into
which a constant influx of hydrocarburet is secured in the manner above
stated. The steam coming from the generator is impregnated or saturated
with carburet in its passage through the commingling tube, and thence
led to the hearth, furnace, or fire-grate, injected and ignited in the
manner herein-before described.
By a modification in the apparatus constructed according to my Inven-
tion I substitute air for steam in some cases, as for instance when a
blast is kept up in connection with the works to which my apparatus is
to be applied.
In the accompanying Sheet of Drawings I have shown in Figure 1
and Figure 2 a front and a side elevation partly in section of an apparatus
constructed according to my Invention. In this apparatus steam

page_text: is supplied through a pipe communicating with a boiler or other
generator.
A is a reservoir or tank filled with hydrocarburet, and communicating
by means of the pipe B with the commingling tube D, with which the
steam pipe C, leading out of a boiler or generator, not shewn here, is
likewise connected. In the commingling tube D the steam coming in
through C passes through the hydrocarburet, and having become impreg-
nated or saturated therewith in its passage through D proceeds to the
fire-grate E, where, having become ignited by a fire previously kindled on
the fire-grate, the flame thence procceding from the steam impregnated
or saturated with carburet acts as a calorific upon the vessel or vessels
exposed to such flame.
In Figures 3 and 4 I have shewn in front elevation and side view, partly
in section, the essential parts of an apparatus constructed according to my
Invention, in which the requisite steam is produced in a special generator
connected with the apparatus.
A hydrocarburet tank A and a water tank A' are here placed above the
furnace to which the apparatus is applied, but they may likewise be
placed in any other convenient part. From the hydrocarburet reservoir A
the pipe B leads directly into the commingling tube D. From the water
tank A¹ a pipe C proceeds to the generator G, in which it keeps up a
constant supply of water as long as the fire is to be kept up on the fire-
grate the influx of the water into the generator being regulated by a
tap or cock c. The generator G being constantly exposed to the heat
proceeding from the flame on the fire-grate the water therein is
evaporated, and the steam thus produced passes through the outlet F
into the commingling tube D, whence, being saturated with the carburet
introduced from the reservoir A it proceeds through the spout or mouth
piece E to the fire-grate and there acts in the manner described.
By the use of an apparatus, such as is above described, it will be found
that the injected hydrocarburet will, when the furnace is once in full
action, supply sufficient fuel to maintain for a considerable time the
required beating flame without replenishing the coke, coal, or other
fuel, which in the first instance is ignited to start the furnace into
work.
Having now described the nature of my said Invention, and illustrated

page_text: stood that I do not claim generally the use of hydrocarburet, mixed with
steam or air, as a means of producing heat, this having been known and
applied heretofore, but what I do claim is,-
First. The use of steam impregnated or saturated with hydrocarburet in
a commingling tube, into which the steam and hydrocarburet are simul-
taneously introduced, in the manner and for the purpose herein-before
described and illustrated in the accompanying Sheet of Drawings.
Secondly. The combination of parts forming the heating apparatus,
constructed and applied substantially as described, and shewn in Figure 1
of the accompanying Sheet of Drawings.
Thirdly. The use or employment of a special generator, as described in
the foregoing, and illustrated in Figures 3 and 4 of the accompanying
Sheet of Drawings, for supplying steam directly to an apparatus con-
structed according to my Invention.
In witness whereof, I, the said Joseph Theodore Dann, have here-
unto set my hand and seal, this Sixteenth day of April, One
thousand eight hundred and seventy-three.
(L.S.) JOSEPH THEODORE DANN.
(L.s.) JOSEPH THEODORE DANN.