Improvements in or in connection with Apparatus for Heating Water for Baths, or for Warming Greenhouses or other Places, Generating Steam for Condensing or other Purposes, or the like.
Year: 1895

page_text: Date of Application, 27th Nov., 1895
Complete Specification Left, 27th Aug., 1896-Accepted, 24th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in or in connection with Apparatus for Heating
Water for Baths, or for Warming Greenhouses or other
Places, Generating Steam for Condensing or other Purposes,
or the like.
We, WALTER DARBY, ION DARBY and JOHN HENRY PUNCHARD, all of
The Weston Works, Weston Street, King's Cross, London, Manufacturers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or in connection with water heaters or
apparatus for heating water for baths or for warming greenhouses or other places
generating steam for condensing or other purposes or for any other uses or purposes
to which same may be applicable.
Our present invention is as follows:-
In the lower part of any suitable enclosing wall or casing which may be of any
suitable shape for instance cylindrical we arrange and mount any suitable_burner
advantageously a burner such as described in Walter Darby and Ion Darby's
Patent No. 2274 of 1895 the said lower part of said casing (or as we term it the
"burner base") may advantageously be formed separate from the upper part of
the casing as hereinafter described but whether formed separate or not this burner
base or lower part is provided with a plate or partition or means to entirely
separate or cut off communication between the lower part of said base and the
upper part such partition being advantageously in the form of a horizontal plate
soldered riveted or otherwise suitably mounted with an opening therein (advan-
tageously a central slot) under which opening the burner is placed so that the slit
or slits in the hood of the burner comes directly under said opening in this
horizontal or other partition-short flanges being mounted below said plate to fit
close up against said burner hood or the burner may be made to fit close up
against said partition or may be otherwise suitably arranged or mounted so that all
that can pass to the upper side of said partition i.e. to the upper part of the casing
or apparatus will be the flame or products of combustion or air passing through
the slit or slits in the hood of said burner thus all cold air is excluded or practically
excluded from passing to the upper part of the apparatus.
If desired instead of one burner two or more suitable burners may be arranged
below said partition a corresponding number of slits or openings being provided in
the latter according to the number and arrangement of said burners.
This lower part or burner base may be arranged and carried on any suitable
stand legs support or bottom part or not as desired and furthermore the lower
chamber formed by the aforesaid horizontal or other partition may be provided
with any suitable series of openings or apertures for a plentiful supply of air to
pass to the burner a suitable door lid or cover being provided or not as desired
over the opening through which the burner or burners is or are placed inside.
or removed from the burner base.
Instead of using a liquid hydro-carbon burner as aforesaid any other suitable
burner or source of heat may be used for instance gas.
For the sake of example we will describe an apparatus suitable for beating bath
water according to our present invention by means of a liquid hydro-carbon burner
of the above-named character.

page_text: Over the burner we arrange and mount an outside wall or casing which may be
of any suitable shape but for the sake of example we will describe a cylindrical
casing supported by a suitable flange provided on the bottom edge thereof resting
on the top edge of the burner base of corresponding shape.
This casing may be either single as usual in geysers or other water heaters or
according to our present invention same may be formed double i.e. with an inside
lining or shell between it and the outside wall or casing an annular space or water
jacket is thus formed and this water jacket has many advantages in use especially
as owing to its shallowness the water therein is rapidly heated, furthermore such
water jacket prevents radiation and also it prevents the outside of the casing
becoming intensely hot with "dry" heat as would otherwise be the case if no such
water jacket were used.
Within this casing and concentric therewith we mount a 2nd cylindrical chamber
or vessel-both less in length and less in diameter than the outside casing-au
annular space being thus left between the outside of said smaller chamber and the
inside of said casing or water jacket up which vertical annulus the products of
combustion pass and thence escape either through a row or other suitable arrange-
ment of openings round the upper part of the casing or through the top of the
apparatus or are led away into a chimney or flue or otherwise as desired.
This inner chamber which we will term the "water holder
volume of water to be heated is strongly mounted or supported in any suitable
manner in its position inside the casing or water jacket and advantageously so as to
be readily removed from same (for cleaning repairing etc.) or otherwise as desired
for instance the top edge of this water holder may be formed with a lip or turned
over edge adapted to fit on a cast iron or other suitable rim or flange mounted
either loose or otherwise on the top edge of the outside casing.
"
as it contains the
Below the bottom of this water holder we arrange and connect therewith in any
suitable manner a secondary or subsidiary water chamber or chambers which for
facility of description we will term the shallow water heating chamber or
chambers.
This water heating chamber (or chambers) consists of the following or equivalent
arrangement and construction of parts viz.: a shallow closed chamber in the form
of a flat ring having three or other suitable number of connections conducting the
water from the bottom of said water holder into said lowermost shallow chamber
where (as same only holds a small quantity of water shallow in depth) this water
is very rapidly heated-this said lowermost chamber being in close proximity to
the burner.
From this last-named chamber the water is conducted by one or more rising
pipes or passages into a second shallow chamber advantageously a disc-like shallow
chamber disposed horizontally and concentrically over the said central opening in
the aforesaid ring-shaped lower shallow chamber but at a sufficient height above
same to permit the products of combustion or the flame to pass through the central
opening in the said lower chamber and up against the under-side of the disc-like
shallow chamber and thence laterally and upwardly against and around the afore-
said water holder-or other suitable number of these water heating chambers one
above the other or otherwise suitably disposed may be arranged or used as desired.
From this upper water heating chamber or chambers a pipe or passage conducts
the water back into the lower or other part of the water holder the point at which
the water is discharged from this said return pipe depending on the height to
which same is carried above the bottom of the water holder.
Or the water may be otherwise suitably conducted from the said water heating
chamber or chambers to any desired part of the water holder in any suitable or
desired manner but advantageously a little above the bottom of said water holder
the object of this being to ensure the circulation of the water.
Any suitable pipe or passage connects the water holder advantageously towards
the top thereof with the aforesaid water jacket or if desired several of such con-
nections may be used at various heights in the water holder while in addition

page_text: thereto the aforesaid lowermost shallow heating chamber has one or more tubes or
connections advantageously diagonally mounted pipes which permit the water from
the water jacket to flow into the aforesaid shallow chamber or vice versa, these last-
named pipes or connections having the additional advantage of serving as stay-bars
or supports to connect the lower part of said water holder to the inside of the
water jacket or outside casing.
Where the water jacket is used a suitable draw-off tap or cock is mounted so as
to draw off the contents from said water jacket the contents of the water holder
rapidly flowing into said water jacket to take the place of what has been drawn off
and this cock or draw-off tap is advantageously placed at such a height above the
lowermost shallow chamber or above the bottom of the water holder if desired as
to ensure a small quantity of water always being left in the apparatus to thus
prevent burning or injury of any of the parts should the burner be lighted before
the water has been turned on or the apparatus been filled with water. A smaller
secondary cock or drain outlet closed by any suitable plug or stop may
advantageously be provided in the lowermost part of said water jacket so that the
whole of the contents can be drained out for cleaning etc. if desired.
Where no water jacket is used the connection from the lower part of the water
holder to the draw-off tap may be such as to pass through the outside wall or
casing and have the draw-off tap screwed or otherwise suitably mounted thereon.
This arrangement serving to keep said water holder in position in the casing
and affords a ready means of disconnecting same so that this water holder can be
entirely withdrawn from the outside wall if desired (for cleaning repairing etc.) or
any other suitable means may be used to secure said water holder or steady
same within the said outside wall or casing.
The operation is as follows:-
:-
The water holder is filled or partly filled with the body of water which it
is desired to warm heat or boil either by means of a pipe or tap arrangement
to supply said water holder or by pouring said water in from a can or in any
other suitable manner so that the whole body of water is thus heated to the
required degree before same is drawn off or passes out of the apparatus through the
aforesaid outlet.
Or instead thereof the water may be fed in as required and drawn out as
quickly as same is fed in and heated after the manner of the well-known "geysers"
that is the heated water may be drawn off direct instead of passing back into the
water holder as before described.
This apparatus will be found to generate steam in large quantities and by
closing same in (and if necessary making same stronger) and conducting such
steam away to any suitable means for condensing same it will be found that
this apparatus is especially suitable for use with condensing water apparatus-and
a sieve or gauze may be added to filter the water (if dirty) which it is desired to
condense.
Also this apparatus may be arranged in connection with water circulating pipes
suitably connected to the said water holder and water heating chambers for heating
or warning purposes such as for greenhouses etc.
Or again this apparatus may be used with any other arrangement of warming
or heating apparatus either by water circulation or acting in any other suitable
manner.
A great advantage of using the hereinbefore described hydro-carbon burner
(Darby's Patent No. 2274 of 1895) in conjunction with this apparatus is that it will be
found almost impossible for such burner to smoke or produce offensive fumes as
approximately perfect combustion or sufficiently perfect combustion will always be
found to take place by reason of the peculiar arrangement and construction of the
apparatus acting in combination and in conjunction with the aforesaid burner.
A special feature of this invention and great advantage obtained thereby is that
in use there is no water of condensation formed on the inside of the apparatus or
parts heated by the burner (or practically none) so that no provision is required to

page_text: be made for any such drip or draining off of waters of condensation outside of the
heating surface as in other water heating apparatus or so-called "geysers."
Dated this 27th day of November 1895.
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.
Improvements in or in connection with Apparatus for Heating
Water for Baths, or for Warming Greenhouses or other
Places, Generating Steam for Condensing or other Purposes,
or the like.
We, WALTER DARBY, ION DARBY and JOHN HENRY PUNCHARD, all of
The Weston Works, Weston Street, King's Cross, London, Manufacturers, 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 relates to improvements in or in connection with water heaters or
apparatus for heating water for baths or for warming greenhouses or other places,
generating steam for condensing or other purposes or for any other uses or purposes
to which same may be applicable.
Our present invention is as follows:-
In the lower part of any suitable enclosing wall or casing which may be of any
suitable shape for instance cylindrical we arrange and mount any suitable burner
advantageously a burner such as described in Walter Darby and Ion Darby's
Patent No. 2274 of 1895 the said lower part of said casing (or as we term it the
"burner base") may advantageously be formed separate from the upper part of
the casing as hereinafter described but whether formed separate or not this burner
base or lower part is provided with a plate or partition or means to entirely separate
or cut off communication between the lower part of said base and the upper part
such partition being advantageously in the form of a horizontal plate soldered
riveted or otherwise suitably mounted with an opening therein (advantageously a
central slot) under which opening the burner is placed so that the slit or slits in the
hood of the burner comes directly under said opening in this horizontal or other
partition-short flanges being mounted below said plate to fit close up against said
burner hood or the burner may be made to fit close up against said partition or may
be otherwise suitably arranged or mounted so that all that can pass to the upper
side of said partition i.e. to the upper part of the casing or apparatus will be the
flame or products of combustion or air passing through the slit or slits in the hood
of said burner thus all cold air is excluded or practically excluded from passing to
the upper part of the apparatus.
If desired instead of one burner two or more suitable burners may be arranged
below said partition a corresponding number of slits or openings being provided in
the latter according to the number and arrangement of said burners.
This lower part or burner base may be arranged and carried on any suitable
stand legs support or bottom part or not as desired and furthermore the lower
chamber formed by the aforesaid horizontal or other partition may be provided
with any suitable series of openings or apertures for a plentiful supply of air to pass
to the burner a suitable door lid or cover being provided or not as desired over the
opening through which the burner or burners is or are placed inside or removed
from the burner base.

page_text: of using a quia nyaro-carbon burner as aforesaid any other suitable
burner or source of heat may be used for instance gas.
For the sake of example we will describe an apparatus suitable for heating bath
water according to our present invention by means of a liquid hydro-carbon burner
of the above-named character.
Over the burner we arrange and mount an outside wall or casing which may be
of any suitable shape but for the sake of example we will describe a cylindrical
casing supported by a suitable flange provided on the bottom edge thereof resting
on the top edge of the burner base of corresponding shape.
This casing may be either single as usual in geysers or other water heaters or
according to our present invention same may be formed double i.e. with an inside
lining or shell between it and the outside wall or casing an annular space or water
jacket is thus formed and this water jacket has many advantages in use especially
as owing to its shallowness the water therein is rapidly heated, furthermore such
water jacket prevents radiation and also it prevents the outside of the casing
becoming intensely hot with "dry" heat as would otherwise be the case if no such
water jacket were used.
Within this casing and concentric therewith we mount a 2nd cylindrical
chamber or vessel-both less in length and less in diameter than the outside casing
an annular space being thus left between the outside of said smaller chamber and
the inside of said casing or water jacket up which vertical annulus the products of
combustion pass and thence escape either through a row or other suitable
arrangement of openings round the upper part of the casing or through the top of
the apparatus or are led away into a chimney or flue or otherwise as desired.
This inner chamber which we will term the "water holder' as it contains the
volume of water to be heated is strongly mounted or supported in any suitable
manner in its position inside the casing or water jacket and advantageously so as
to be readily removed from same (for cleaning repairing etc.) or otherwise as
desired for instance the top edge of this water holder may be formed with a lip
or turned over edge adapted to fit on a cast iron or other suitable rim or flange
mounted either loose or otherwise on the top edge of the outside casing.
"
Below the bottom of this water holder we arrange and connect therewith in any
suitable manner a secondary or subsidiary water chamber or chambers which for
facility of description we will term the shallow water heating chamber or
chambers.
This water heating chamber (or chambers) consists of the following or
equivalent arrangement and construction of parts viz.: a shallow closed chamber
in the form of a flat ring having three or other suitable number of connections
conducting the water from the bottom of said water holder into said lowermost
shallow chamber where (as same only holds a small quantity of water shallow in
depth) this water is very rapidly heated-this said lowermost chamber being in
close proximity to the burner.
From this last-named chamber the water is conducted by one or more rising
pipes or passages into a second shallow chamber advantageously a disc-like shallow
chamber disposed horizontally and concentrically over the said central opening in
the aforesaid ring-shaped lower shallow chamber but at a sufficient height above
same to permit the products of combustion or the flame to pass through the central
opening in the said lower chamber and up against the under-side of the disc-like
shallow chamber and thence laterally and upwardly against and around the
aforesaid water holder-or other suitable number of these water heating chambers
one above the other or otherwise suitably disposed may be arranged or used as
desired.
From this upper water heating chamber or chambers a pipe or passage conducts
the water back into the lower or other part of the water holder the point at which
the water is discharged from this said return pipe depending on the height to
which same is carried above the bottom of the water holder.
Or the water may be otherwise suitably conducted from the said water heating

page_text: chamber or chambers to any desired part of the water holder in any suitable or
desired manner but advantageously a little above the bottom of said water holder
the object of this being to ensure the circulation of the water.
Any suitable pipe or passage connects the water holder advantageously towards
the top thereof with the aforesaid water jacket or if desired several of such
connections may be used at various heights in the water holder while in addition
thereto the aforesaid lowermost shallow heating chamber has one or more tubes or
connections advantageously diagonally mounted pipes which permit the water from
the water jacket to flow into the aforesaid shallow chamber or vice versa these
last-named pipes or connections having the additional advantage of serving as
stay-bars or supports to connect the lower part of said water holder to the inside of
the water jacket or outside casing.
Where the water jacket is used a suitable draw-off tap or cock is mounted so as
to draw off the contents from said water jacket the contents of the water holder
rapidly flowing into said water jacket to take the place of what has been drawn off
and this cock or draw-off tap is advantageously placed at such a height above the
lowermost shallow chamber or above the bottom of the water holder if desired as
to ensure a small quantity of water always being left in the apparatus to thus
prevent burning or injury of any of the parts should the burner be lighted before
the water has been turned on or the apparatus been filled with water.
A smaller secondary cock or drain outlet closed by any suitable plug or stop
may advantageously be provided in the lowermost part of said water jacket so that
the whole of the contents can be drained out for cleaning etc. if desired. Where
no water jacket is used the connection from the lower part of the water holder to
the draw-off tap may be such as to pass through the outside wall or casing and
have the draw-off tap screwed or otherwise suitably mounted thereon. This
arrangement serving to keep said water holder in position in the casing and affords
a ready means of disconnecting same so that this water holder can be entirely
withdrawn from the outside wall if desired (for cleaning repairing etc.) or any
other suitable means may be used to secure said water holder or steady same
within the said outside wall or casing.
The operation is as follows:-
The water bolder is filled or partly filled with the body of water which it is
desired to warm heat or boil either by means of a pipe or tap arrangement to
supply said water holder or by pouring said water in from a can or in any other
suitable manner so that the whole body of water is thus heated to the required
degree before same is drawn off or passes out of the apparatus through the
aforesaid outlet. Or instead thereof the water may be fed in as required and
drawn out as quickly as same is fed in and heated after the manner of the well-
known geysers" that is the heated water may be drawn off direct instead of
passing back into the water holder as before described.
63
This apparatus will be found to generate steam in large quantities and by closing
same in (and if necessary making same stronger) and conducting such steam away
to any suitable means for condensing same it will be found that this apparatus is
especially suitable for use with condensing water apparatus and a sieve or gauze
may be added to filter the water (if dirty) which it is desired to condense.
Also this apparatus may be arranged in connection with water circulating pipes
suitably connected to the said water holder and water heating chambers for
heating or warming purposes such as for greenhouses etc.
Or again this apparatus may be used with any other arrangement of warming or
heating apparatus either by water circulation or acting in any other suitable
manner.
A great advantage of using the herein before described hydro-carbon burner
(Darby's Patent No. 2274 of 1895) in conjunction with this apparatus is that it
will be found almost impossible for such burner to smoke or produce offensive
fumes as approximately perfect combustion or sufficiently perfect combustion will
always be found to take place by reason of the peculiar arrangement and

page_text: conjunction with the
of the apparatus acting in comomation a
aforesaid burner.
And in order that our present invention may be easily understood and readily
carried into practice we will proceed to fully describe same with reference to the
drawings hereunto annexed :-
Fig.
is a central vertical section (on the line 1-1 Fig. 2) of the complete
apparatus (for heating water) according to our present invention.
Fig. 2 is a plan on line 2--2 Fig. 1 looking in the direction of the arrow y.
Fig. 3 is a plan on line 3-3 Fig. 1 looking in the direction of the arrow .
Fig. 4 is a central vertical section of an alternative arrangement of the casing.
Similar letters of reference indicate corresponding parts throughout.
A is the stand upon which the apparatus rests.
B is the burner base or chamber which rests on the stand A and contains the
burner C.
D is a division plate or partition formed or mounted in any suitable manner in
the said burner base B either horizontal or otherwise suitably disposed so as to
completely cut off all communication from the lower part of the chamber B to the
upper part thereof except through the central slot or opening D'--the size and
shape of which latter corresponds to the form of the burner.
D2 D2 are flanged plates or strips secured to the under side of the division D to
serve as guides by which the top of the burner C is brought into the correct
position beneath the aperture D', or these guides D' may be dispensed with and
the burner C guided on the bottom thereof and made to fit up close under the
aperture D' in the division plate or partition D.
EE are air admission holes by which the air can freely pass from the exterior
of the lower part of the chamber B into the interior thereof (besides passing in at
the aperture through which the burner is inserted, or said opening may be closed
by a suitable cover) below said division plate D.
F is the outside wall or casing which in the case illustrated in Figs. 1, 2 and 3
is formed double, i.e., with a lining such as Fx between which and the outer wall F
a water jacket or water-tight annular space G is thereby formed. Or said easing F
may be single, as shown in Fig. 4; the advantage of the former arrangement being
that loss of heat or radiation is prevented or greatly reduced.
His a cylindrical chamber or vessel which we will term the water holder
arranged concentrically within the said casing F.
The turned-over edge H' of said water holder H rests on the top edge of the
cast iron or other suitable rim or flange U, which latter fits down (as shown) on
the upper edges F1 of the outer casing F where it is permanently retained when
the water holder H is secured in position as hereinafter explained. In the case
illustrated in Fig. 1 such water holder H is supported or held in position within the
casing F by the tubes O, as also by the connection Q, as hereinafter described,
while in the case illustrated in Fig. said water holder H is held in position at the
lower part thereof by the connecting pipe H* which conducts the water from the
lower part of said water holder H to the draw off cock Z; or short stays, tubes or
rods may also be used as in Fig. 1.
FF are a row of vent holes or apertures through which the products of
combustion escape from the interior of the apparatus.
I is a suitable lid or cover of any suitable ornamental or other design (either
perforated or solid), having a circular lip or flange 11 thereon, which latter fits
within the top of the water holder H, or other suitable form of lid may be used.
The bottom edge F³ is advantageously formed as shown in Figs. 1 and 4, in
such manner as to be adapted to rest on the upper edge B¹ of the cylindrical
base B.
JJ are pipes (advantageously 3) leading from the bottom of chamber H to the
shallow closed chamber K in the form of a flat ring, this ring-shaped hollow
chamber K having a central opening or passage K' through same, through which
the products of combustion pass as hereinafter described.

page_text: From this shallow chamber K three (or other suitable number of) pipes L
connect the former to a second shallow disc-like chamber M arranged above the
chamber K over the passage K' and concentric therewith.
N is a pipe or connection from said disc-like chamber L leading into the water
holder H a little above the bottom thereof.
O (Figs. 1 and 2) are pipes or connections (which also serve the purpose of
stay-bars) between the water jacket G and the under side of said shallow ring-like
chamber K.
Q (Fig. 1) is a short tube or connection leading from the upper part of the
water jacket G to the upper part of the interior of the water holder H, or several
such connecting pipes Q may be used at different heights if desired.
X (Fig. 1) is a plug closing a draw off outlet (in the lowermost part of the
water jacket G) which may be provided or not, as desired for the purpose of
completely emptying all water out of the apparatus.
Y is an annular space between the inside of the casing and the outside of the
water holder, up which annulus or passage Y the products of combustion pass and
thence escape into the atmosphere through the aforesaid apertures F³.
Z is a draw-off cock which may be as shown, or of any other suitable construction,
as desired.
The operation is as follows:-
The flame or heat (or products of combustion) coming from the burner C passes
up through the aperture D', and such flame or the heat therefrom strikes against
the under side of the ring-like lowermost shallow chamber K and is spread thereby,
and part of such flame etc. can pass around the outer edge or periphery of said
ring K, the main body passing through the passage K' comes directly against the
under side of the second shallow chamber M, and is spread thereby. Thus both
these chambers as well as the tubes or connections J L and O are intensely heated
and the flame or heat (or products of combustion) thence passes up the annular
passage Y, thus heating not only the bottom of the water heater H but all the way
up the sides of same, and also at same time intensely heat the water in the
water jacket or space G (when same is used as in Fig. 1), the products of com-
bustion finally escaping out of the apparatus at F as aforesaid. The water
contained in the lowermost shallow chamber K being very small in quantity owing
to the shallowness of said chamber is consequently very quickly heated, and passes
up the passages L into the second shallow chamber M, where it is again further
heated, and thence rises through the pipe N into the water bolder H, while the
water of the lower temperature in the water holder H which will naturally descend
to the bottom thereof will pass down the pipes J into the chamber K, and thus
rapid heating of the water, and circulation thereof is ensured.
In the arrangement shown in Fig. 1 the tap Z draws off the water from the
water jacket G, into which latter the water from the holder H can rapidly pass
either through the connections O or Q so that the level of water is maintained in
said water jacket equal with that in the water chamber H.
In the event of the formation of steam in said water jacket G same can easily
escape through the connection Q into the water holder H, and thence out of the
top thereof, if necessary.
An important feature of this invention is that no water of condensation (or
practically none) is formed on the heating surfaces in this apparatus, this being a
great desideratum in water heating apparatus of this character.
The use of the division plate D and the special arrangement of same with
respect to the rest of the apparatus forms a very important and essential feature in
this invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
I. The combination with a closed-in stove or heating apparatus of the character

page_text: described of a horizontal division plate or partition such as D to entirely divide off
the lower from the upper part of the apparatus and thereby prevent air reaching
the upper part of the apparatus except through the opening such as D¹ the flame
or flames from the burner or burners passing through said opening D¹ to the said
closed-in upper part of the apparatus substantially in the manner and for the
purposes herein before described.
2. A water heating apparatus consisting of an outer casing an inner and smaller
vessel arranged concentrically inside said casing and forming the water holder a
vertical annular passage up which the products of combustion pass between said
outer casing and water holder a shallow closed-in chamber or chambers arranged
horizontally below said water holder and connected therewith a division plate or
partition below said hollow chambers entirely dividing the upper part of the
interior of the apparatus and water containing devices from the lower part and all
inlets for admitting air an opening in said partition of a size and so arranged with
respect to the burner or burners as to only permit the flame or flames thereof to
pass through said opening and thereby prevent cold air reaching the water holder
or chambers to be heated as also prevent the formation of water of condensation on
the surfaces to be heated of said water holder or shallow chambers substantially in
the manner and for the purposes hereinbefore described.
3. A water-heating apparatus consisting of the combination with a double casing
such as F and F* forming a water jacket such as G of a water holder such as H
within said casing and forming an annular passage such as Y for the products of
combustion to pass up between said water jacket G and water holder H shallow
water heating chambers such as K and M below said water holder and connected
by suitable connections thereto and to the water jacket a burner or burners such
as C arranged below said water holding devices and a horizontal division plate or
partition such as D between said water holding devices and the burner C with an
opening such as D' therein corresponding to the size and fitting closely over the
burner and through which the flame passes all arranged and acting substantially in
the manner and for the purposes hereinbefore described with reference to Figs. 1
to 3 of the drawings hereunto annexed.
4. A water heating apparatus consisting of the combination with a single casing
such as F of a water holder such as H within said casing and forming an annular
passage such as Y for the products of combustion to pass up between said casing
and water holder H shallow water heating chambers such as K and M below said
water holder and connected by suitable connections thereto a burner or burners
such as C arranged below said water holding devices and a horizontal division
plate or partition such as D between said water holding devices and the burner C
with an opening such as D¹ therein corresponding to the size and fitting closely
over the burner and through which the flame passes all arranged and acting
substantially in the manner and for the purposes herein before described with
reference to Fig. 4 of the drawings hereunto annexed.
5. The improved arrangement and construction of stoves or apparatus combined
and arranged to act substantially in a manner and for the purposes hereinbefore:
described and illustrated in the drawings hereunto annexed.
Dated thin 07th J
1000
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,.
Agents for the Applicants.