IMPROVEMENTS IN GAS-GENERATING FURNACES
Year: 1884

page_text: I HENRY HARRIS LAKE of the firm of Haseltine Lake & Co Patent Agents
Southampton Buildings in the County of Middlesex do hereby declare the nature
of my invention for "IMPROVEMENTS IN GAS-GENERATING FURNACES" to be as
follows:-
The present invention relates to that class of generator-furnaces in which grates
are not used and the walls whereof are so constructed as to form an inward
projection by which the fuel, as it descends, is caused to fall in a slope, this slope
forming, with the underside of said projection, an aunular space into which the air.
for supporting combustion is introduced. Experience has proved these projections
to be very liablo to destruction by the heat, which is highest just at this point, as
well as by tho corrosive action of the liquid slags. To overcome these incon-
veniences, the said projection instead of being made of solid brickwork, is, according
to the present invention, formed by an iron channel of triangular section, extending
into the fuel and filled with water, so that the edge thereof being in contact with
the incandescent fuel, is continuously cooled. Moreover, in order to protect the
said channel against damage by the shocks unavoidably applied thereto in clearing
off the slags and against the direct influence of the radiating heat, the underside of
the same is provided with plates of cast iron secured in any convenient manner.
The channel is open at the top, so that any incrustation may be removed without
difficulty.
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: COMPLETE SPECIFICATION.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co. Patent-Agents,
Southampton Buildings, London, do hereby declare the nature of the said
invention for "IMPROVEMENTS IN GAS-GENERATING FURNACES," and in what
manner the same is to be performed, as communicated to me from abroad by
Messrs. Schulz, Knaudt & Co. residing in Essen on the Ruhr, kingdom of Prussia,
German Empire, to be particularly described and ascertained in and by the
following statement:---
This invention relates to the class of gas-generating furnaces in which grates are
not used and the walls whereof are so constructed as to form an inward projection
by which the fuel, as it descends, is caused to fall in a slope, this slope forming with
the underside of said projection on annular space into which the air for supporting
combustion is introduced. Experience has proved these projections to be very apt
to destruction by the heat, being highest just at this point, as well as by the
corrosive action of the liquid slags. To overcome these inconveniences, the said
projection instead of being made of solid brickwork, is, according to the present
invention formed by an iron channel of triangular section, extending into the fuel
and filled with water, so that the edge thereof being in contact with the incan-
descent fuel, is continuously cooled. Moreover, in order to prevent damage being
done to the said channel by the shocks to which it is unavoidably exposed when
the adhering slags are cleared off, and to protect it against the direct influence of
the radiating heat, the underside of the same is provided with plates of cast iron
secured in any convenient manner. The channel is open at the top, so that any
incrustation may be romoved without difficulty.
On the annexed sheet of drawings a gas-generating furnace provided with this
improvement is shown in vertical section. a is the iron channel projecting with
its edge e into the shaft of the furnace, b the slope formed by the fuel on passing
down below the edge e, and c the annular space enclosed between the bottom of
the channel a, the outer wall of the lower part of the furnace and the slope b. Into
this space c the air is introduced as stated. ss are the cast-iron plates serving to
protect the bottom of the channel. These may bo'secured by scrow-bolts or other-
wise. By the cooling influence of the water in the channel a, the said plates are
prevented from being burnt or melted.
Instead of iron any other suitable metal may be used in the construction of the
channel.
Having thus particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The combination with a gas-genorating furnace, of a channel a of iron or other
suitable metal, adapted to contain water, and projecting with an edge e into the
fuel, so as to cause the same to form a slope b, and which channel is provided
on its underside with cast-iron plates 8, substantially as and for the purpose
specified.
HASELTINE, LAKE & Co.,
For the Applicant.