Year: 1888

page_text: Date of Application, 18th Jan., 1888
Complete Specification Left, 19th Nov., 1888
Complete Specification Accepted, 21st Dec., 1888
I, BENJAMIN VERITY of 77 Hamilton Terrace Maida Vale in the County of Middlesex,
Engineer do hereby declare the nature of this invention to be as follows:-
This Invention relates to an improved construction of water heater for baths and
other domestic purposes, and also for heating conservatories and other apartments ;
and it has for its object to heat the water quickly and out of contact with the gaseous
products of combustion, so that it may be used for potable purposes.
The casing of the improved water heater is constructed with double walls of
cylindrical or other shape, enclosing between them an annular water space. The space
within the inner cylinder is traversed by water heating tubes of very flattened cross-
section set at a slight inclination and placed side by side in tiers above one another,
those of any one tier being opposite the spaces between the tubes of the tier above and
below. These tubes communicate at their opposite ends with the annular water space,
and are directly exposed to the heat from a gas or oil burner at the lower part of the
apparatus. The annular water chamber is supplied with water from a tray at the top
of the apparatus through tubes of very small diameter leading from the underside of
the tray down within the heating chamber to the bottom of the annular water chamber,
said tubes passing between the transverse water-heating tubes, and being for this
purpose of zig-zag or wavy form. They divide up the water and deliver it uniformly
around the circumference of the water chamber. The water is supplied to the tray
through a cock discharging into a filter cage whereby solid particles are arrested and
prevented from fouling the tray or the pipes leading therefrom to the annular water
chamber. The water flows through the descending pipes to the lower part of the
annular chamber and is heated in its descent; it then ascends through the annular
chamber and transverse tubes, becoming still further heated, and is drawn off from
the upper part of the annular water casing.
With the same draw-off nozzle is combined an overflow nozzle connected directly
with the cold water tray, so that in case of an excessive supply of water, notice of the
excess will be given by the running off of cold water.

page_text: When heating by gas, the lower part of the stove at which the burner is situated is
open and fitted with a reflector beneath the level of the burner, so that whilst the
latter is concealed from direct view, light and heat therefrom will be reflected into
the apartment, thereby giving a cheerful appearance to the stove and allowing a quick
circulation of air. When heating by oil, the lower part of the stove is entirely open,
the upper part containing the water being supported by legs at a distance above the
burner, so that the oil container is kept quite cool, thus ensuring safety and allowing
the air to pass freely through the stove. The heated products from the burner strike
against the transverse flat tubes, and are by them deflected against the sides
of the water chamber and also against the descending tubes and after traversing
between the whole series of cross-tubes, strike against the concave bottom of the
water tray.
By this construction, a very efficient apparatus having a very large heating surface,
is obtained, so that practically the whole of the heat is utilized.
B. VERITY.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improved Apparatus for Heating Water for Domestic and other
Purposes.
I, BENJAMIN VERITY of 77, Hamilton Terrace, Maida-Vale, in the County of
Middlesex, 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 relates to an improved construction of water heater for baths and
other domestic purposes, and also for heating conservatories and other apartments, and
it has for its object to heat the water quickly and out of contact with the gaseous
products of combustion, so that it may be used for potable purposes.
The improved water heater is constructed entirely of copper tinned on the inner
surface, and comprises an annular water space, the internal flue space being traversed
by superposed rows of water heating tubes. It may further comprise a water-chamber
at the top and small tubes leading therefrom down between the transverse water-tubes
to the bottom of the annular casing. Or, the small tubes may be dispensed with and.
the cold water be introduced at the bottom of the annular water-space.
Reference is to be had to the accompanying drawings forming part of this
specification wherein figure 1 is a half-sectional elevation and figure 2 a horizontal
Bection on line 1-1 figure 1. Figure 3 is a vertical section on line 2-2 figure 4
which is a horizontal section on line 3-3 figure 3. Figure 5 is a vertical section of
a simple construction, the small tubes being omitted. The same letters of reference
indicate the same parts in all the figures.
A is the annular water-space constructed of double walls of cylindrical or other form,
B are the rows of transverse water-heating tubes. These tubes are of very flattened
cross-section and are set at a slight inclination. They are placed side by side in tiers
above one another, those of any one tier being opposite the spaces between the tubes
of the tiers above and below. These tubes communicate at their opposite ends with
the annular water-space and are directly exposed to the heat from a gas or oil burner C
at the lower part of the apparatus.
The annular water-chamber A is, in the example illustrated in figures 1 to 4, supplied
with water from a chamber D at the top of the apparatus, through tubes E of very
small diameter leading from the underside of the chamber D down within the heating
chamber to the bottom of the annular water-chamber A, said tubes E passing between.
the transverse water-heating tubes B and being, for this purpose, of zig-zag or wavy
form. They divide up the water and deliver it uniformly around the circumference
of the water-chamber A. The water is supplied from an overhead cistern to the
chamber D which is closed through a pipe F discharging into a filter cage G whereby
solid particles are arrested and prevented from fouling the chamber D or the pipes
leading therefrom to the annular water-chamber A. The water flows through the
descending pipes E to the lower part of the annular chamber A and is heated in its
descent; it then ascends through the annular chamber A and transverse tubes B,
becoming still further heated, and is drawn off from the upper part of the annular
water casing at a nozzle H. With the same draw-off nozzle is combined an overflow

page_text: nozzle I connected directly with the cold water chamber D, so that in case of an
excessive supply of water, notice of the excess will be given by the running off of
cold water.
The heated products from the burner strike against the transverse flat tubes B and
are by them deflected against the sides of the water-chamber A and also against the
descending tubes E and after traversing between the whole series of cross-tubes
strike against the concave bottom of the water-chamber. D.
In the modified construction illustrated in figure 5, the supply chamber D and
tubes E are omitted and the cold water is introduced directly at the lower part of the
annular water space A and circulates upwards through said space and through the
transverse water tubes B and is drawn off from the upper part of the space A as
before. In this case, the inner wall of the water-space A is of conical form at the
upper part, and leads to an outlet or chimney at the top of the casing.
With either construction, a very efficient apparatus, having a very large heating
surface, is obtained so that practically the whole of the heat is utilized.
When heating by gas, the lower part of the stove at which the burner is situated
may have an opening fitted with a reflector beneath the level of the burner, so that
whilst the latter is concealed from direct view, light and heat therefrom will be reflected
into the apartment, thereby giving a cheerful appearance to the stove and allowing a
quick circulation of air. When heating by oil, the lower part of the stove is preferably
entirely open, the upper part being supported by legs at a distance above the burner
so that the oil container is kept quite cool, thus ensuring safety and allowing the air
to pass freely through the stove.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. A water heater for domestic purposes mainly constructed of an annular water
chamber in combination with superposed tiers of inclined water-tubes of flattened
cross-section traversing the central heating space and connected at their ends to the
annular water chamber and arranged those of the one tier opposite the spaces between
those of the tiers above and below, substantially as described.
2. A water heater for bath and other domestic purposes, constructed of an annular
water space in combination with superposed tiers of inclined water-heating tubes
traversing the central flue space, a closed water chamber above the said flue space, and
water tubes leading from said chamber down through the flue-space between the
transverse water-tubes to the bottom of the annular water-space, substantially as
specified.
3. A water heater for bath and other domestic purposes, constructed of an annular
water-space in combination with superposed tiers of inclined water heating tubes
traversing the central flue space, a closed water chamber above the said flue space,
and water tubes leading from said chamber down through the flue between the
transverse water tubes to the bottom of the annular water space, the annular water
space
space being provided with an outlet nozzle connected with the top of said annular
water chamber, and the cold water chamber being provided with an overflow
nozzle for denoting when the supply of water is excessive, substantially as specified.
Dated this 19th day of November 1888.
B. VERITY.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.