IMPROVEMENTS IN PORTABLE GAS APPARATUS FOR HEATING WATER OR OTHER LIQUIDS FOR BATHS, AND OTHER PURPOSES
Year: 1879

page_text: LETTERS PATENT to Stephen William Wentworth, of South Hackney, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN PORTABLE GAS
APPARATUS FOR HEATING WATER OR OTHER LIQUIDS FOR BATHS, AND OTHER
PURPOSES."
"
PROVISIONAL SPECIFICATION left by the said Stephen William Went-
worth at the Office of the Commissioners of Patents on the 10th January
1879.
STEPHEN WILLIAM WENTWORTH, of South Hackney, in the County of Middlesex.
IMPROVEMENTS IN PORTABLE GAS APPARATUS FOR HEATING WATER OR OTHER
LIQUIDS FOR BATHS, AND OTHER PURPOSES."
This Invention relates to the arrangement and application of new or improved
portable gas apparatus for heating water or other liquids for baths and other
purposes.
The apparatus consists of a metallic vessel so constructed and arranged as to float
when placed in a bath tank or other vessel containing water or other liquid to be
heated.
The lower part or body of the floating vessel or boiler descends to some depth
below the surface of the water or other liquid to be heated, and is composed of
several air and water spaces, the latter being filled with the water or other liquid
when afloat in a bath or other vessel.
The air spaces serve to keep the vessel or boiler afloat, and also to supply air to
the gas burner or burners placed within a chamber at the bottom or lower part of
the vessel or boiler, and to carry off the products of combustion from the gas
burners.
The air speces present a large amount of heating surfaces for the transmission of
the heat from the gas burners to the water or liquid surrounding them.
The water spaces are connected by pipes or passages at the upper and lower
parts so as to admit of the free circulation of the water or liquid as it becomes
heated by contact with the heated surfaces of the air spaces.
The vessel or boiler may be of circular, square, oblong, hexagonal, octagonal, or
other suitable form, according to the purpose for which it may be required.

page_text: Gas burners are connected to the lower ends of pipes which pass down nearly to
the bottom of the air spaces formed in the central part of the vessel or boiler, being
so arranged as to form a series of horizontal jets arranged in a circle (when the
apparatus is circular), but the burners may be otherwise arranged and adapted to
the form of the apparatus. The gas flames from the burners project into an air
space or spaces below the under surface of the water spaces, the heated products
passing away up the air spaces around the outer circumference of the apparatus.
The gas pipes which carry the burners may be readily introduced and withdrawn
from the apparatus when required.
The pipe for supplying gas has a stop cock, and is connected with the supply
by a flexble or other pipe, by which arrangement the apparatus is rendered very
portable.
The apparatus may be used for applying heat to a bath, or for transmitting heat
to water or other liquid for various purposes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Stephen William Wentworth in the Great Seal Patent Office on the
9th July 1879.
STEPHEN WILLIAM WENTWORTH, of South Hackney, in the County of Middlesex.
"IMPROVEMENTS IN PORTABLE GAS APPARATUS FOR HEATING WATER OR OTHER
LIQUIDS FOR BATHS, AND OTHER PURPOSES."
This Invention relates to the arrangement and application of new or improved
portable gas apparatus for heating water or other liquids for baths, and other
purposes.
The apparatus consists of a metallic vessel so constructed and arranged as to float
when placed in a bath, tank, or other vessel containing water or other liquid to be
heated.
And in order that my Invention may be clearly understood and readily carried
into practice, I will proceed to describe the Drawings hereto annexed, which show
several views of portable gas apparatus suitable for heating water by causing it to
float in a bath, or it may be employed in accordance with my Invention for heating
water or other liquids for other purposes.
As the nature of each of the views shown in the Drawings is written thercon, it
will not be necessary to repeat the same here.
The lower part or body of the floating vessel or boiler a descends to some depth
below the surface of the water or other liquid to be heated, and is composed of
several air and water spaces, as clearly shown in the Drawing, the latter being
filled with the water or other liquid when afloat in a bath or other vessel.
The air spaces serve to keep the vessel or boiler afloat, and also to supply air to
the gas burner or burners b placed within a chamber at the bottom or lower part
of the vessel or boiler a, and to carry off the products of combustion from the gas
burners.
The air spaces present a large amount of heating surfaces for the transmission
of the heat from the gas burners to the water or liquid surrounding them.
The water spaces are connected by pipes or passages a' at the upper and lower
parts so as to admit of the free circulation of the water or liquid as it becomes
heated by contact with the heated surfaces of the air spaces.
The vessel or boiler a may be of circular, square, oblong, hexagonal, octagonal,
or other suitable form, according to the purpose for which it may be required.
The gas burners b are connected to the lower ends of the pipes b¹, which pass
down nearly to the bottom of the air spaces formed in the central part of the vessel
or boiler, being so arranged as to form a series of horizontal jets arranged in a circle,
as shown (when the apparatus is circular), but the gas burners b may be otherwiso
arranged and adapted to the form of the apparatus. The gas flames from the
burners project into an air space or spaces below the under surface of the water
spaces, the beated products passing away up the air spaces around the outer circum-
ference of the heating apparatus or boiler a.
The gas pipes b' which carry the burners b may be readily introduced and
withdrawn from the apparatus when required.
The pipe 6 for supplying gas has a stop cock 63, and is connected with the
supply by a flexible or other pipe, by which arrangement the apparatus is rendered
very portable.
Having thus described the nature of my Invention, and the manner of per-
forming or carrying the same into practice, I would remark that I do not claim
any of the parts separately, which are well known and in common use, but what
I claim is,
First. The improved arrangement and construction of portable gas apparatus
arranged so as to float in a bath or other vessel or reservoir, for the purpose of

page_text: heating the water or other liquid contained therein, substantially in the manner
herein before described and represented in the Drawings annexed.
Secondly. I claim the improved arrangement of the gas burners b for causing the
flames to burn horizontally, so that the heat radiates from the centre between a
double skin or case to the largest diameter of the portable floating gas heating
apparatus, for heating water or other liquids for baths, or for other purposes, sub-
stantially in the manner berein before described and represented in the Drawings
annexed.
In witness whereof, I, the said Stephen William Wentworth, have hereunto
set my hand and seal, this Eighth day of July, in the year of our Lord
One thousand eight hundred and seventy nine.
S. W. WENTWORTH. (L.S.)