in Furnaces, Grates, and Stoves.
Year: 1884

page_text: in Furnaces, Grates, and Stoves.
I, JOSEPH MOORE of Beulah Road, New Thornton Heath, in the county of
Surrey, Doctor of Medicine, do hereby declare the nature of my Invention
for "IMPROVEMENTS IN APPARATUS FOR THE UTILIZATION OF WASTE HEAT IN
FURNACES, GRATES AND STOVES " to be as follows:-
My improved apparatus is especially applicable to such grates or stoves as are
used for warming apartments, but it may also be applied to furnaces or stoves used
for other purposes.
The apparatus consists essentially of the following arrangement: a number of
plates or diaphragms, made of cast iron or other suitable material, are placed
within the flue or chimney of a grate or stove; the said plates or diaphragins being
by preference arranged parallel to one another and to the walls of the due or
chimney, and the the said plates or diaphragmus may, if desired, be formed in two
parts. Cast in one with, or attached to the said plates or diaphragms, is a
reservoir, chamber or receptacle. The said reservoir, chamber or receptacle, may
be situated wholly or partly within the flue or chimney, or may be enclosed within
the thickness of the walls of the same, or may be placed exterior to the said walls,
in which last case the plates or diaphragms must pass through the walls of the flue
or chimney. The reservoir is connected with the external atmosphere by two or
more orifices, in such manner that when the reservoir is heated, a current of air
shall flow through the reservoir.
The action of the apparatus is as follows:-in an ordinary furnace, grate or
stove, a considerable quantity of inflammable hydro-carbon passes away with the
other products of combustion and is lost, because being mixed with aqueous
vapour, it is unable to be ignited and thus a large source of heat is wasted.
By the use of my improved apparatus, the inflammable hydro-carbon and the
aqueous vapour or moisture, or the greater part thereof, are caught by and adhere
to the large extent of surface presented by the said plates or diaphragms, and as
the aqueous vapour or moisture is soon evaporated therefrom, the deposited hydro-
carbon ignites, and a considerable extra percentage of heat is thereby obtained.
The plates or diaphragms heat the reservoir, to which they are attached, by
conduction and a constant stream of cool air will be drawn into the said reservoir
and a constant stream of warm air will issue therefrom, into the apartment in

page_text: which the stove is placed. In order more effectually to heat the air, I may if
preferred, provide gills or ribs within the said reservoir, to increase the extent of
the heating surface.
When my apparatus is employed in connection with furnaces or stoves used for
other purposes than heating apartments, such as steam boilers, cooking &c. &c.
I prefer to dispense with the reservoir and to use the plates or diaphragms only.
And when the said plates are applied to the internal flue of an ordinary Cornish
boiler, or in similar cases, it is desirable to attach them to the walls of the flue in
which they are placed, as a large amount of heat will thus be conducted to the said
walls and from them to the water in the boiler.
.
COMPLETE SPECIFICATION.
Improvements in Apparatus for the Utilization of Waste Heat
in Furnaces, Grates, and Stoves.
I, JOSEPH MOORE of Beulah Road, New Thornton Heath, in the county of
Surrey, Doctor of Medicine do hereby declare the nature of my said invention
for "IMPROVEMENTS IN APPARATUS FOR THE UTILIZATION OF WASTE HEAT IN
FURNACES, GRATES AND STOVES" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
My improved apparatus is especially applicable to such grates or stoves as are
used for warming apartments, but it may also be applied to furnaces or stoves used
for other purposes.
The apparatus consists essentially of the following arrangement:-a number of
plates or diaphragms, made of cast-iron, or other suitable material, are placed
within the flue or chimney of a grate or stove; the said plates or diaphragms being
by preference arranged parallel to one another and to the walls of the flue or
chimney, and the said plates or diaphragms may, if desired, be formed in two
parts. Cast in one with, or attached to the said plates or diaphragms, is a
reservoir, chamber or receptacle.
The said reservoir chamber or receptacle, may be
situated, wholly or in part, within the flue or chimney, or may be enclosed within
the thickness of the walls of the same, or may be placed exterior to the said walls,
in which last case the plates or diaphragms must pass through the walls of the flue
or chimney. The reservoir is connected with the external atmosphere by two or
more orifices, in such manner that when the reservoir is heated, a current of air
shall flow through the reservoir,

page_text: thereto,
Figure 2, is a vertical section of the same, through the line X, X, in Figure 1.
Figure 3, is a cross-section through the line Z, Z, in Figures 2 and 4.
Figure 4 is a vertical section of a stove of a somewhat different pattern to that
shewn in Figures 1 and 2, having my invention applied thereto.
The same letters refer to the same parts in these four Figures.
Figure 5, is a cross section of an ordinary Cornish steam boiler, with external
brickwork flues, having my invention applied thereto.
In figures 1, 2 & 3, A is the bottom, B the back, and C the bars of the grate.
The back bottom & sides of the grate in the drawing are firebrick as in the
ordinary "slow combustion" grates with solid firebrick bottoms-D is the chimney
flue-A vertical iron plate E has a number of parallel iron diaphragms or plates F
cast in one with it, or otherwise attached thereto-The said parallel plates are
preferably about one eighth of an inch thick, and are placed about half an inch
from each other and they are so arranged as to come as close to the top of the fire
in the grate as possible, so that the lower parts of the plates may be exposed to the
direct action of the flame, and all the products of combustion have to pass upwards
between the said plates, with the result as herein before described.
A hollow iron or metal reservoir or chamber H, is attached to, or made in one
piece with the plates F, so that it becomes heated by conduction therefrom-
openings for the admission to, and exit of air from such reservoir or chamber, may
be arranged as desired-In the drawings the air enters through gratings J in the
front of the stove, passes up the tubes or passages K, to each end of the reservoir
and after becoming heated therein makes its exit into the room through a grating
at L, as shown by the arrows at J & L in figures 2 and 4,-a suitable damper may
be provided to close the opening L when necessary.
To increase the heating surface of the reservoir H, it is preferably provided with
internal ribs or gills as shewn.

page_text: In figure 4 my invention is shewn as applied to a grate with bars and an open
asb pit and a sliding register or damper P, such sliding damper is preferably made
in halves to slide sideways.
In this case the plates F are not visible in the front of the stove (except in so far
as they may be seen through the register P when open) as in figures 1 and 2, but
are placed behind the front plate Q, and register P as shewn-The grating J for
admitting air to the reservoir H, is shewn as situated on the outside of the building
to draw air from the external atmosphere.
In all other respects the description of figures 1, 2 & 3 will apply to figure 4.
In order to remove any dust or dirt which may accumulate in the chamber H,
I make a part of the front of the grate to open on binges as shown in dotted lines
at S in figures 2 & 4, by which means the whole of the interior of the chamber is
accessible.
In figure I a portion of the front of the grate is broken away, to show the
construction of the chamber H more clearly.
In figure 5, A is a Cornish boiler with internal flue B, bottom flue C and side
flues D. D of the usual description.
My parallel diaphragms or plates F, may be placed in the flue B, behind the fire
bars, or, if preferred, in the flue C as shewn, in this case no air-heating reservoir is
required The plates F are shewn as constructed in halves for convenience of
construction & fixing in place.
Although in the said drawings only three instances of the application of my said
invention are shewn it will be readily comprehended therefrom how the same may
be applied to other descriptions of furnaces, grates, or stoves.
I wish it to be understood that I do not confine myself to the exact details of
construction hereinbefore shewn & described, but having now particularly described
and ascertained the nature of my said invention and in what manner the same is
to be performed I declare that what I claim is
1. The application of parallel metal plates or diaphragms to the flues of furnaces,
grates, and stoves, substantially in the manner and for the purposes as herein
described and shewn:
2. The combination with the aforesaid parallel plates or diaphragms, of an air-
heating chamber, substantially in the manuer and for the purposes as herein
described and shewn.
Dated this twenty first dont of AnanalL TOOK