An Apparatus for Heating Water to Warm Conservatories or for Baths or other Purposes.
Year: 1889

page_text: Date of Application, 5th Apr., 1889
Complete Specification Left, 6th Jan., 1890-Accepted, 8th Feb., 1890
PROVISIONAL SPECIFICATION.
An Apparatus for Heating Water to Warm Conservatories or for
Baths or other Purposes.
I, SAMUEL DEARDS of Victoria Works, Harlow in the County of Essex, Engineer,
lo hereby declare the nature of this invention to be as follows:-
-
This invention consists of an apparatus for heating water to warm conservatories, or
or baths, or for other purposes, which apparatus is complete in itself without the aid
or addition of the usual circulating pipes.
My apparatus is composed of an oblong or other shaped hot air chamber which is
entirely closed except that there is an aperture at bottom to correspond with the
burner of a lamp and that there are perforations at the ends and preferably near the
bottom for the escape of the heated air so as to ensure circulation of same.
This hot air chamber is surrounded except at the bottom and ends by a water
chamber or jacket the inner wall of which is formed by the wall of the hot air chamber.
The outer wall of the water chamber is made of thin metal, preferably copper, and
made of corrugated or other form or with gills so as to present a large surface to the
surrounding atmosphere.
The apparatus is heated by means of a lamp or gas burner placed below the bottom
aperture of the air chamber, the effect being that the air in this chamber becomes
highly heated, circulation of the same taking place towards the perforations at the
ends of the chamber, and that the hot air imparts its heat through the intervening
wall to the water in the water chamber and that this water in turn imparts heat by
radiation to the surrounding atmosphere. External pipes may be carried from the
end perforations of the air chamber to positions near the bottom aperture of same so
that the heated air that escapes from the chamber will be to a great extent drawn into
it again by the current induced by the burner. When the apparatus is to be used in
conservatories or greenhouses a plant propagator can be placed on top of same so as
to be heated by radiation from the water chamber while the surrounding air is heated
by the sides and ends of this chamber. For offices, halls and like places the water
chamber will give off heat to the surrounding atmosphere at top, sides and ends.
For baths the outer wall of the water chamber should be boxed in with wood or
other material so as to prevent radiation of heat, the water, when sufficiently heated,
being drawn off into the bath by means of a cock or tap.
٣,٦
A 1020
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
An Apparatus for. Heating Water to Warm Conservatories or for
Baths or other Purposes.
I, SAMUEL DEARDS of Victoria Works, Harlow in the County of Essex, 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:
This invention consists of an apparatus for heating water to warın conservatories or
for baths or for other purposes which apparatus is complete in itself without. the aid or.
addition of the usual circulating pipes.
The apparatus is composed of an oblong or other shaped hot air chamber which is

page_text: entirely enclosed except that there is an aperture at bottom to correspond with the
burner of a lamp and that there are one or more openings for the escape of the heated
air so as to ensure circulation of same. This hot air chamber is covered except at the
bottom and ends by a water chamber or jacket the inner wall of which is formed by
the wall of the hot air chamber. The outer wall of the water chamber is made of thin
metal preferably copper and of corrugated or other form or with gills so as to present
a large surface to the surrounding atmosphere.
The apparatus is heated by means of a lamp or gas burner placed below the bottom
aperture of the air chamber, the effect being that the air in this chamber becomes
highly heated, circulation of the same taking place towards the opening or openings of
the chamber, and that the hot air imparts its heat through the intervening wall to the
water in the water chamber, and that this water in turn imparts heat by radiation to
the surrounding atmosphere. External pipes may be carried from the opening or
openings of the air chamber to positions near the bottom aperture of same so that the
heated air that escapes from the chamber will be to a great extent drawn into it again
by the current induced by the burner, but in practice I have not under ordinary
circumstances, found these external pipes of much advantage.
If gas is used as the heating medium the opening or openings from the hot air
chamber should preferably communicate with a flue to carry off the heated
vitiated air.
When the apparatus is to be used in conservatories or greenhouses a plant propagator
can be placed on top of same so as to be heated by radiation from the water chamber
while the surrounding air is heated by the sides and ends of this chamber. For offices,
halls and like places the water chamber will give off heat to the surrounding atmo-
sphere at top, sides and ends.
For baths the outer wall of the water chamber should be boxed in with wood or
other material so as to prevent radiation of heat, the water when sufficiently heated
being drawn off into the bath by means of a cock or tap.
Figure 1 of the annexed drawings is a longitudinal section and Figure 2 a transverse
section on the line 1..1 of an apparatus constructed according to my invention.
Figures 3 and 4 are similar views of a somewhat modified form.
Referring first to Figures 1 and 2 a a is an oblong hot air chamber entirely closed
except that there is an aperture 6 at bottom to correspond with the burner of a
lamp and that there are outlets fitted with regulating valves at c and d and an air
hole at e. The chamber a is preferably divided by plates ff so as to provide a zig-
zag passage for the heated air. The chamber a is covered at the sides and top with a
water chamber or jacket y the inner wall of which is formed by the wall of the hot
air chamber. The outer wall of the water chamber is made of thin metal preferably
copper and corrugated so as to present a large surface to the surrounding atmosphere.
The water space may extend quite up to the top of the apparatus but I find in practice
that it is generally better except when using gas to leave room as shown between the
water and the top for the heated air to pass over the surface of the water so as to
take up a certain amount of vapor. In normal working a lamp is stood below the
aperture b, the outlet c will be more or less open and the outlet d closed; the heated
air more or less moistened with vapor will then escape at c. If moistened air is not
required the outlet c can be closed and the outlet d opened. The heated air in the
chamber a imparts its heat to the water in the chamber and this water in turn
imparts heat by radiation to the surrounding atmosphere. The water chamber is
supplied with water through the hot air outlet c.
In the modified form of the apparatus shown in Figures 3 and 4 the water
chamberg covers the top and sides of the hot air chamber a as in Figures 1 and 2,
and also extends through the lower part of this chamber; the hot air does not pass
over the surface of the water but issues direct by the outlet c. If moisture is required
either the outlet d can be opened or an outlet at h communicating between the space
above the surface of the water and the outlet c'; or both the outlets d and h can be
opened.

page_text: 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 :-
The apparatus constructed substantially as hereinbefore described and shown in the
annexed drawings for heating water to warm conservatories or for baths or other
purposes.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.