Improvements in and Connected with Furnaces, whereby Chimneys are Dispensed with and the Heating Properties of Coal, Coke, and other Fuel Increased, and Smoke Entirely Consumed.
Year: 1886

page_text: Improvements in and Connected with Furnaces, whereby
Chimneys are Dispensed with and the Heating Properties
of Coal, Coke, and other Fuel Increased, and Smoke
Entirely Consumed.
+1. J.
ROBERT SCOTT 92 Shield Street Newcastle on Tyne Grocer and Provision
Dealer I do hereby declare the nature of my invention for IMPROVEMENTS IN AND
CONNECTED WITH FURNACES and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
The object of my invention is the introduction of a number of concentrated
currents of air to the top, bottom, and sides of the fuel.
The currents of air are conveyed by means of pipes or inlets which pass through
the boiler plates, the fuel is placed on the furnace plates, and the currents of air are
produced by means of a fan, or air compressor. In the accompanying drawings
fig. 1 represents a section of a boiler.
A. A Water space of boiler.
BB Furnaces of boiler.
CC Combustion chambers.
D Neck or channel connecting combustion chambers.
EEE Main pipes for air currents.
FFFF Inlets or pipes conveying air currents from main pipes to the fuel.
G Inlet for in the chamber connecting the combustion chambers.
HH Outlet for gases produced by combustion.
I I Valves which govern the exit of gases.
The inlets for air to the fuel are arranged opposite to each other or alternatavely
along the sides of the furnace; the number of inlets for air currents are regulated
according to the size of the furnace, by forcing air through the inlets combustion
is supported and stimulated to any extent desired. By closing one of the valves I
which govern the outlet of gases, the gases of one furnace are forced through the
combustion chambers, and over the opposite furnace, by opening and closing the
valves II alternatavěly the gases of one furnace are made to pass over the opposite
furnace: when one furnace has been newly supplied with fuel the smoke or
gases evolved are forced over the bright burning furnace opposite thereby
securing more perfect combustion. The inlet for air in pipe G supplies air to
stimulate combustion of gases passing from one furnace to the other.
Fig. 2 represents a section of a boiler, with furnace, combustion chamber and
combustion tubes in this case the combustion chambers are not connected as shewn
in fig. 1.
A A Water space of boiler.
B Furnace.
C Combustion chamber.
D Bridge with water inside.
E Combustion tubes.
F Inlets for air to fuel shewing flange.
G Inlet for air to combustion chamber to stimulate combustion.

page_text: In my Provisional Specification I mention a suction arrangement whereby the
gases evolved by combustion are drawn through the burning fuel in this method a
recess is made, in the sides of the furnace to which a pipe is attached And by
means of a suction fan the gases are drawn out of the furnace as this arrangement
can be easily understood I have not shewn it in the accompanying drawings:
In using forced draught it is necessary to retard the rapid exit of gases, this may
be done by using a valve whereby the size of the outlet may be increased or
diminished as desired, I prefer however to carry the outlets which convey the gases
from the furnace and place the end of the said outlet into a body of water or other
fluid, by placing the outlet a few inches in water by means of the forced draught
the gases are forced through the water before they are liberated, by this method
the gases are made more dense in the furnace and thereby the properties of
combustion are increased and the smoke entirely consumed, no chimney is
required simply the outlet already mentioned, when the furnace door is closed
the furnace is hermetically sealed except for inflow of air through the pipes to
the fuel.
I may mention that a description of this invention appeared in the Newcastle
Daily Chronicle immediately after receiving provisional protection.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare what
I claim is,
1st The introduction of concentrated currents of air by means of pipes which
pass through the boiler plates to the top, sides and bottom of the fuel.
2nd Burning the fuel on the furnace plates..
3rd Delivering the smoke or gases evolved by combustion into a body of water
or other fluid.