IMPROVEMENTS IN EFFECTING THE COMBUSTION OF CERTAIN FUELS FOR THE GENERATION Or STEAM
Year: 1876

page_text: LETTERS PATENT to Hamilton Geary, of Woolwich, in the County of Kent,
a Captain in the Royal Artillery, for the Invention of " IMPROVEMENTS IN
EFFECTING THE COMBUSTION OF CERTAIN FUELS FOR THE GENERATION Or
STEAM."
Sealed the 2nd May 1876, and dated the 7th January 1876.
PROVISIONAL SPECIFICATION left by the said Hamilton Geary at the Office
of the Commissioners of Patents on the 7th January 1876.
<<
HAMILTON GEARY, of Woolwich, in the County of Kent, a Captain in the Royal
Artillery. IMPROVEMENTS IN EFFECTING THE COMBUSTION OF CERTAIN FUELS
FOR THE GENERATION OF STEAM."
This Invention relates to effecting the combustion of certain fuels, such for
example, as antbracite or stone coal, or of coke, and more especially of what is
known as anthracite coke, and in employing the products of combustion for the
purpose of generating steam, and it consists in so arranging and disposing the fuel
as that the carbonic acid or mixtures of gases containing the same produced at the
inferior portion of the fire-place producer or generator shall by its passage through
or in contact with the ignited carbon be converted into carbonic oxide.
One form and construction of the furnace which I have found to answer consists
in so arranging the depth of the fire-place or fire-room which is to be employed in
conjunction with a blast as shall allow of the deoxidation of the carbonic acid
produced at the inferior portion of the furnace.
As it is the object of this Invention to produce from the before-mentioned fuels
substantially carbonic oxide to be employed for the generation of steam in marine
or other boilers I have found that by the construction of a furnace or furnaces
which are herein-before mentioned that closed furnaces constructed upon the
principle of what is known as a cupola or blast furnace can also be advantageously
employed.
In the employment of such furnaces as before-mentioned I prefer that the inferior
portion of the furnace shall be closed, so that a blast may be employed, and in
conjunction with such furnace or furnaces I cause an arrangement to be made, as is
well understood, so that the combustible gases produced in such cupolas or other
blast furnaces shall be conducted to the marine or other boiler, and be employed for
the generation of steam.
In order to effect the more effectual combustion of the combustible gases gene-

page_text: rated and employed in the manner herein-before mentioned I insert a perforated
pipe or tube, or a series of perforated pipes or tubes, in the combustion chamber of
the boiler, through which I cause air to be injected so as to commingle with the
gases to be consumed.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by
said Hamilton Geary in the Great Seal Patent Office, on the 7th July 1876.
HAMILTON GEARY, of Woolwich, in the County of Kent, a Captain in the Royal
Artillery. "IMPROVEMENTS IN EFFECTING THE COMBUSTION OF CERTAIN FUELS
FOR THE GENERATION OF STEAM."
The said Invention relates to effecting the combustion of certain fuels, such for
example, as anthracite or stone coal or of coke, and more especially of what is
known as anthracite coke, and in employing the products of combustion for the
purpose of generating steam, and it consists in so arranging and disposing the fuel
as that the carbonic acid or mixtures of gases containing the same produced at the
inferior portion of the fire-place producer or generator shall by its passage through
or in contact with the ignited carbon be wholly or in part converted into carbonic
oxide, and thus become available as a steam generating agent.
One form and construction of the furnace which I have found to answer consists
in so arranging the depth of the fire-place or fire-room which is to be employed in
conjunction with a blast as shall allow of the deoxidation of the carbonic acid
produced at the inferior portion of the furnace.
As it is the object of this Invention to produce from the before-mentioned fuels
substantially carbonic oxide to be employed for the generation of steam in marine
or other boilers I have found that by the construction of a furnace or furnaces
which are herein-before mentioned that closed furnaces constructed upon the
principle of what is known as a cupola or blast furnace can also be advantageously
employed.
In the employment of such furnaces as before mentioned I prefer that the inferior
portion of the furnace shall be closed, so that a blast may be employed, and in
conjunction with such furnace or furnaces I cause an arrangement to be made, as is
well understood, so that the combustible gases produced in such cupolas or other blast
furnaces shall be conducted to the marine or other boiler or boilers, and be employed
for the generation of steam.
In order to effect the more perfect combustion of the gases generated and
employed in the manner herein-before mentioned I provide a perforated pipe or
tube, or a series of perforated pipes or tubes, opening into or communicating with
the combustion chamber of the boiler, through which I cause air to be injected, so
as to commingle with the gases to be consumed, the supply of such air by this
arrangement being capable of regulation as the operation may from time to time
require.
Having now described and particularly ascertained the nature of my said Inven-
tion, and the manner in which the same is or may be used or carried into effect, I
would observe in conclusion that what I consider to be novel and original and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is,--
First. The arranging and disposing of fuel so that the carbonic acid or mixture of
gases containing the same produced at the inferior portion of the fire-place or
generator shall by its passage through or in contact with the ignited carbon be
wholly or in part converted into carbonic oxide, and thus become available as a
steam generating agent, substantially in the manner herein-before described.
Second. Effecting the more perfect combustion of the combustible gases generated
and to be employed in the manuer herein-before mentioned by the use of a per-
forated pipe or tube, or of a series of perforated pipes or tubes, opening into or

page_text: communicating with the combustion chamber of the boiler, through which I cause
air to be injected so as to commingle with the gases to be consumed, substantially
as herein-before described.
In witness whereof, I, the said Hamilton Geary, have to this my Specification
set my hand and seal, this First day of July, One thousand eight hundred
and seventy-six.
HAMILTON GEARY. (L.B.)