Improvements in Smoke Consuming Furnaces.
Year: 1892

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1232
COMPLETE SPECIFICATION.
Improvements in Smoke Consuming Furnaces.
I, GEORGE STILLSON RILEY. of Rochester, in the County of Monroe and
State of New York, United States of America, Gentleman, do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
This invention has for its object to provide a new and improved boiler furnace of
that type wherein twin fire places located beneath the boiler are combined with
valves, dampers or gates in such manner that as one fire place is charged with fresh
fuel, the smoke and other products of combustion can be caused to pass beneath
the adjacent fire place thereby becoming aerated and rising through the incandescent
fuel in transit to the chimney or smoke stack, for the purpose of effectually consuming
the smoke and gases and economizing in the consumption of fuel.
The invention consists essentially in the combination in a steam boiler furnace, of
twin fire places open at their top and provided at their adjacent sides with vertical
walls, a vertical partition extending from the boiler down between the said walls to
provide opposite longitudinal flues or passageways a pair of adjustable valves,
dampers or gates arranged respectively at or near the lower edge of the partition
and below the fire places at the adjacent sides thereof, and a pair of adjustable
valves, dampers or gates arranged in flues in the lower portion of the smoke stack,
as will more fully hereinafter appear.
The invention also consists in other features of construction and combination or
arrangement of parts hereinafter described.
In the accompanying drawings:
Figure 1, is a transverse sectional view taken in a vertical plane through the twin
fire places.
Figure 1.
Figure 1, and
Figure 2 is a longitudinal sectional view taken on the liner,
Figure 3 is a horizontal sectional view taken on the line y-
Figure 4, is a vertical sectional view taken on the line - Figure 2.
In order to enable those skilled in the art to make and use my invention I will
now describe the same in detail, referring to the drawing where the numeral 1,
indicates a furnace structure comprising front, rear and side walls of any material
suitable for the conditions required, and adapted to support a steam boiler 2, of any
well known type.
The forward portion of the furnace structure is provided with twin fire places 3,
open at their tops for the unobstructed passage of heat to the under side of the
boiler. The fire places comprise grates 4 of any suitable construction, and the
adjacent sides of the fire places are provided with vertical walls 5. separated from
each other for the passage between the same of a vertical partition 6, which extends
downward from the lower side of the boiler, in such manner as to provide opposite
longitudinal flues or passageways 7 and 8, formed respectively by the lower end
portion of the partition and the vertical side walls of the fire places.
The vertical partition extends longitudinally from the front to the rear wall of
the furnace structure, for the purpose of dividing the latter into two complete
sections and this partition may be solid or it may be hollow for the passage of air
to avoid burning or warping. At or near the lower edge of the partition, and
beneath the fire places at the adjacent sides thereof, are arranged a pair of adjustable
valves, dampers or gates 9 and 10, which are, as here shown, adapted to swing in
the arcs of circles on rock shafts 12 and 13, having their forward ends extended
through the front wall of the furnace structure and provided with suitable
handles 14 and 15 or other devices for the purpose by which to turn the shafts for
adjusting the valves, dampers or gates.

page_text: A longitudinal division wall 16 divides the base of the furnace structure into a
pair of ash pits 17 and 18, and this division wall is located directly beneath the
partition 6 and flues or passages 7 and 8, so that the free edges of the valves or
dampers or gates 9 and 10, can be brought to rest against the upper end portion of
the partition wall.
A smoke stack 19 is arranged at one end of the furnace structure and its lower
portion or swell contains a vertical partition 20, which constitutes a continuation of
the longitudinal partition 6. for the purpose of dividing the lower portion of the
smoke stack into two corresponding flues 20 and 21. The pair of valves, dampers
or gates 22 and 23 are arranged respectively in the flues 20 and 21, and at their
outer ends are provided with suitable handles 24 and 25, or other devices, by which
to adjust them into the position required. The smoke stack is tapering at its base
portion and in order to provide the proper square or other properly shaped orifices
for the arrangement of the valves, dampers or gates 22 and 23 construct the
upper portion of the partition 20 with divergent walls 26 and 27, in which are
journaled the inner extremities of the shafts 28 and 29 of the valves, dampers or
gates 22 and 23, which may be square, circular or other convenient shape. The
lower extremities of the divergent walls 26 and 27 are joined to the partition 20 by
converging walls 30 and 31 thereby providing the upper end portion of the
partition 20 with a wedge-shaped enlargement for the purpose of providing the
proper spaces to receive the valves dampers or gates, and also afford supports for
the shafts which carry such valves, dampers or gates.
In the drawings 1 have exhibited the smoke-stack as located at the rear of the
furnace structure, but if the boiler is provided with return flues in the usual manner,
the smoke stack will accordingly be located at the front of the furnace structure in
a manner which will be obvious to those skilled in the art, for which reason I do
not deem it essential to illustrate this arrangement in the drawing.
In the practical operation of the furnace, if the damper or gate 10 is adjusted to
a vertical position and rests against the partition wall 16, and the valve, damper or
gate 23 in the smoke stack is closed, while the damper 9 is horizontal and the
damper 22 is open, the smoke and other products of combustion from the fire
place 3 will descend through the flue or passageway 8 to a point beneath the adjacent
fire place and becoming aerated rise through the incandescent fuel therein, by which
means the smoke and gases from the freshly charged fire place are effectually
consumed by passing through the incandescent fuel in the adjacent fire place.
Obviously if the damper or gate 9 be vertical the damper 22 closed the damper 10
horizontal and the damper 23 open the reverse action will occur. By this means
as one fire place is charged with fresh fuel, the smoke and other products of com-
bustion therefrom can be caused to pass beneath the adjacent fire place and there
becoming charged with oxygen and rise through the incandescent fuel in transit to
the chimney or smoke stack, for the purpose of effectually consuming the smoke
and gases.
My invention provides a simple, economical and efficient construction which
fulfils all the conditions required to consume the smoke in a steam boiler furnace.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. The combination in a steam boiler furnace, of twin fire places open at their
top and provided at their adjacent sides with vertical walls, a vertical partition
exten ling from the bailer down between the said vertical walls to provide opposite
longitudinal flues or passageways 7 and 8 and a pair of adjustable valves, dampers
or gates arranged respectively below the twin fire places at the adjacent sides
thereof, substantially as described.
2. The combination in a steam boiler furnace of twin fire places open at their
top and provided at their adjacent sides with vertical walls, a vertical partition
extending from the boiler down between the said vertical walls to provide opposite

page_text: longitudinal flues or passageways 7 and 8, a pair of adjustable valves, dampers or
gates arranged respectively below the fire places at the adjacent sides thereof, a
smoke stack containing a partition which forms a continuation of the partition
beneath the boiler for dividing tion of the smoke stack into two fues, and a
pair of adjustable valves, dampers or gates arranged respectively in the said flues,
substantially as described.
Dated this 28th day of June 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.