IMPROVEMENTS IN BOILERS FOR HEATING WATER
Year: 1888

page_text: Date of Application, 3rd Feb., 1888
Complete Specification Left, 2nd Nov., 1888
Complete Specification Accepted, 31st Dec., 188
I, WILLIAM FOULIS of 42 Virginia Street, Glasgow, in the County of Lanark,
North Britain, Engineer do hereby declare the nature of the said invention for
IMPROVEMENTS IN BOILERS FOR HEATING WATER to be as follows :-
This Invention which relates to improvements in apparatus for heating and supplying
hot water, consists in attaching one or more pendant tubes to the boiler of a kitchen
range or an analogous boiler. These tubes may be of a V-shape, one end being
attached to the bottom of the boiler and the other end to the top. The leg of the
tube which is attached to the top of the tube is exposed to the full heat of the fire, the
other leg is to some extent protected from the heat. A rapid circulation is thereby
created through the tube towards the top of the boiler. The tubes are by preference
carried down the full depth of the fire. Instead of the tube being made V-shaped it
may be made annular or the leg of the tube which is exposed to the fire may be made
of larger diameter having a core through it, or other forms of tube may be adopted,
the object being to expose the water in thin streams or layers to the action of the fire.
Instead of the tubes being attached to the boiler they may be attached directly to the
circulating pipes.
Under a second part of this Invention such tubes as are above described are attached
to the ordinary forms of slow combustion stoves for the purpose of heating water to
supply heating coils and other hot-water appliances. In this application it is preferred
to have a single tube with centre core placed in the centre of the fire chamber. The
supply pipe being brought in at the bottom and the hot water taken from the top of
the stove but a number of pipes may be used. When it is desired to carry the
heating pipes under the level of the stove (round the floor of the room, as for
example, in which the stove may be placed), the hot water is carried up to a cup or
vessel open to the atmosphere placed above the stove to which the hot water pipes are
attached.
1000
ST. JOHN V. DAY,
115, St. Vincent Street, Glasgow,
Petitioner's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Heating and Supplying Hot Water.
1, WILLIAM FOULIS of 42 Virginia Street, Glasgow, in the County of Lanark,
North Britain, Engineer 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:-
My Invention, which relates to improvements in apparatus for heating and
supplying hot water, consists in attaching one or more pendant tubes to the boiler
of a kitchen range or an analogous boiler. These tubes may be of a V-shape or of
an equivalent shape one end being attached to the bottom of the boiler and the other
end to the top: The leg of the tube which is attached to the top of the boiler is
exposed to the full beat of the fire, the other leg is to some extent protected from
the heat. A rapid circulation is thereby created through the tube towards the top of
the boiler. The tubes are by preference carried down the full depth of the fire.
Instead of the tube being made V-shaped or equivalently shaped, it may be made
annular, or the leg of the tube which is exposed to the fire may be made of larger
diameter having a core through it, or other forms of tube may be adopted, the object
being to expose the water in thin streams or layers to the action of the fire. Instead
of the tubes being attached to the boiler they may be attached directly to the
circulating pipes.
Under a second part of this Invention such tubes as are above described are attached
to the ordinary forms of slow combustion stoves for the purpose of heating water to
supply heating coils and other hot water appliances. In this application it is preferred
to have a single tube with centre core placed in the centre of the fire chamber. The
supply pipe being brought in at the bottom and the hot water taken from the top of
the stove but a number of pipes may be used. When it is desired to carry the heating
pipes under the level of the stove (round the floor of the room, as for example, in
which the stove may be placed) the hot water is carried up to a cup or vessel
open to the atmosphere placed above the stove to which the hot water pipes are
attached.
In order that my Invention may be properly understood and. readily. carried into
effect, I have hereunto appended four explanatory sheets of drawings in the several
Figures of which corresponding parts are marked with the same letters of
reference.
Figure 1, of these drawings is a transverse vertical section of a cooking range
similar to that shewn in the drawings of and described in the specification of the
said William Foulis No. 1612 A.D. 1888 and of even date herewith shewing. my

page_text: improvements in apparatus for heating and supplying hot water attached to the boiler
of the said kitchen range.
Figure 2, is a horizontal section on the line a, b, in Figure 1, shewing the position
and connections of the said water heating and supplying arrangements.
Figure 3, is a half front elevation and half longitudinal section of the central
portion of a kitchen range constructed in accordance with my said improvements.
As the several parts of the kitchen range, shewn in the annexed drawings Figures1
and 2, are the same as those shewn and described in the aforesaid specification of the
said William Foulis No. 1612 A.D. 1888 it is not necessary to herein further refer
to them.
The boiler of the kitchen range marked Q, in Figures 1 and 3, has attached to it
the pipes R, and S, which are connected at their lower ends by the transverse pipe T,
as shewn. From this arrangement it will be seen that the pipes R, are directly
exposed to the heat of the fuel which surrounds them, either when tho grate is worked
as an open fire by the fuel resting on the fire bottom grate bars and contained in the
upper fuel chamber C, or when it is worked as a slow combustion stove by the fuel
being contained in the lower chamber D. As the tubes R, are of comparatively small
diameter they expose the water in them in thin layers to the action of the fuel, thereby
causing the water to be very rapidly heated and rapidly circulated in the said pipes
to the boiler Q, the water descending from the lower part of the boiler through the
pipes S, and ascending to the top thereof through the pipe R. Although on the
annexed drawings I have shewn but two sets of pipes R, and S, it is to be understood
that many more such sets of pipes may be adopted for heating water in thin streams
or layers as herein before described and in some cases a single V-shaped pipe, such as
that constituted by the pipes R, and S, and the connecting pipe T, may be
sufficient.
It is also to be understood that the pipes R, and S, may be attached to boilers or
analogous vessels or apparatus generally wherein it is required to beat and supply
hot water.
Figure 4, is a vertical section of a slow combustion stove adapted for heating and
circulating hot water in and for public buildings, such as halls, churches or other
places, such as the rooms of houses, greenhouses, vineries, and other enclosed spaces
requiring to be heated. In this arrangement of my Invention there is contained at
the centre of the slow combustion stove a vertical pipe A, wherein the water
to be heated circulates in the direction shewn by the arrows in the said Figure.
The water space in this central tube A, is made thin by the insertion in
the said tube of the central core B, which as will be seen on reference to
the drawing when placed in the tube A, leaves a thin annular space C. The
central core B, may be supported within the surrounding tube A, by studs, or
projections placed so as to hold it in a central position. The upper end of the
tube A, bas a central pipe D, rising from it and leading up into the hot water
reservoir E. The hot water flows out from the reservoir E, by the pipe F, which
connects it to the outflowing end of the cistern of hot water pipes in any building or
enclosed space requiring to be heated and the return pipe is connected to the bottom
of the tube A, by means of the pipe or attachment G. The casing H, which surrounds
the central tube A, is charged with fuel through the door I, and constitutes a slow
combustion stove, the air required for the combustion of fuel in which is supplied
through the orifices a, whilst a door J, is provided for the purpose of cleaning
out from time to time the dust and ashes resulting from the fuel burnt in the
said stove.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In apparatus for heating and supplying hot water the V-shaped or equivalently
shaped pipes R, S, T, shewn at Figures 1 and 2, for the purpose of exposing the
water to be heated in thin layers or streams to the action of the heat of the fuel burnt

page_text: in the apparatus to which the said pipes are applied, substantially as hereinbefore
described and shewn upon the annexed drawings.
2. The slow combustion stove fitted with the central pipe A, and core B, so as to
constitute a thin annular space for the water to be heated, the said space being con-
nected to a water reservoir at the top of the stove and to the return pipe at the
lower end thereof and operating substantially as hereinbefore described and shewn
upon the annexed drawings...