Improved Water Heating Apparatus for Baths.
Year: 1888

page_text: Date of Application, 14th Nov., 1888
Complete Specification Left, 30th Nov., 1883
Complete Specification Accepted, 23rd Mar., 1889
[Communicated from abroad by CARL ESCHEBACH, trading as Eschebach and
Haussner, of Dresden, Kingdom' of Saxony, German Empire, Manufacturer.]..
Improved Water Heating Apparatus for Baths.
I, WILLIAM LLOYD WISE, of No 46 Lincoln's Inn Fields, in the County of Middlesex,
Consulting Engineer and Patent Agent do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in water heating apparatus for baths in
which the heat employed for the rapid production of hot water is applied to water
vessels that offer a very large area of heating surface in proportion to the volume
of water contained therein; in which the hot gases and products of combustion do
not come into direct contact with the water to be heated so that pollution of the
water by soot is prevented; and in which the main body or inner part of the heating
apparatus may be readily removed from the outer part for cleaning purposes.
Water heating apparatus constructed according to this invention may be heated
by gaseous liquid or solid fuel.
The annexed drawing illustrates in vertical section water heating apparatus con-
structed according to this invention.
a is a cylindrical vessel formed with double walls the annular space of which
communicates by means of an admission pipe b provided with a valve (not shewn)
with a main pipe for supplying cold water.
From the upper part of the annular space of the cylindrical vessel a the water
is conducted downwardly by means of a pipe c through the central part of the said
vessel and into a lower double walled cup-shaped vessel d the interior of which
communicates by means of a series of spiral tubes with the interior of a similarly
shaped upper vessel e.
The water after passing in an upward direction from the lower cup d through
the spiral tubes to the upper cup è rises into the pipe g which communicates with
a downwardly extending pipe the lower end of which terminates at i above the
bath or bathing vessel and with a pipe k that terminates in a rose 1 located above
the said bath or bathing vessel.

page_text: In order to cause the water to rise into pipe k the pipe h is provided with a valve or
cock m.
The cylindrical vessel a is covered by a bell shaped cover n.
The heated air which in the heating apparatus illustrated is produced by a ring-
shaped gas burner o circulates in contact with the lower cup d around the rim of
which it escapes; it then rises in contact with the spiral tubes f which are so
arranged that the ascending current of heated air will rise and heat both the inner
and the outer sides of the coil and also the inner wall of the cylindrical vessel a.
At the top of the apparatus the hot air is deflected outward and is then conducted
in a downward direction between the cover n and vessel a acting on the outer side
of the latter to impart heat thereto, and finally escaping through apertures p
provided near the lower end of the said cover.
The water in its course as specified and indicated by arrows in the drawing will be
raised to the necessary temperature for bathing purposes.
If the water is led to the rose by closing the valve m it may be cooled down to
the proper temperature for douching purposes by admitting a suitable quantity of cold
water thereto by a pipe (not shewn) arranged for this purpose in connection with the
pipe k.
As indicated in the drawing the main heating body proper, viz. the vessels d and e,
the spiral tubes f connecting the said vessels, and the central pipe c are connected to
the other parts of the apparatus at a and y in such a manner as to admit of their easy
and frequent removal when necessary. for cleaning purposes.
In order that tbis main heating body may not be suspended or carried by such
connections at r and y the upper vessel e is provided with angle irons or supports g
that rest upon the upper end of the cylindrical vessel a as shown.
Dated this 14th day of November 1888.
W. LLOYD WISE,
Per F. J. B.,
6, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: Improved Water Heating Apparatus for Baths.
I WILLIAM LLOYD WISE of No. 46 Lincoln's Inn Fields, in the County of Middlesex,
Consulting Engineer and Patent Agent, 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 improvenients in water heating apparatus for baths in
which the heat employed for the rapid production of hot water is applied to water
vessels that offer a very large area of heating surface in proportion to the volume
of water contained therein; in which the hot gases and products of combustion do
not come into direct contact with the water to be heated so that pollution of the
water by soot is prevented; and in which the main body or inner part of the heating
apparatus may be readily removed from the outer part for cleaning purposes. Water
heating apparatus constructed according to this invention may be heated by gaseous,
liquid, or solid fuel. The drawing filed with my provisional specification illustrates
in vertical section water heating apparatus constructed according to this invention.
a is a cylindrical vossel formed with double walls the annular space of which com-
municates by means of an admission pipe b provided with a valve (not shown) with
a main pipe for supplying cold water..
From the upper part of the annular space of the cylindrical vessel a the water is
conducted downwardly by means of a pipe c through the central part of the said
vessel and into a lower double walled cup shaped vessel d the interior of which com-
municates, by means of a series of spiral tubes f, with the interior of a similarly
shaped upper vessel e.
The water, after passing in an upward direction from the lower cup d through
the spiral tubes f to the upper cup e, rises into the pipe g which communicates with
a downwardly extending pipe h the lower end of which terminates at i above the
bath or bathing vessel and with a pipe k that terminates in a rose located above the
said bath or bathing vessel.
In order to cause the water to rise into pipe k the pipe h is provided with a valve or
cock m.
The cylindrical vessel a is covered by a bell shaped cover n.
The heated
air, which in the heating apparatus illustrated is produced by a ring shaped gas
burner o, circulates in contact with the lower cup d around the rim of which it
escapes; it then rises in contact with the spiral tubes which are so arranged that the
ascending current of heated air will rise and heat both the inner and the outer sides of
the coil and also the inner wall of the cylindrical vessel a.
At the top of the apparatus the hot air is deflected outward and is then conducted in
a downward direction between the cover n and vessel a acting on the outer side of the
latter to impart heat thereto, and finally escaping through apertures p provided near
the lower end of the said cover. The water, in its course as specified, and indicated
by arrows in the drawing, will be raised to the necessary temperature for bathing
purposes.

page_text: If the water is led to the rose 1 by closing the valve m it may be cooled down to
the proper temperature for douching purposes by admitting a suitable quantity of cold
water thereto by a pipe (not shewn) arranged for this purpose in connection with the
pipe k.
As indicated in the drawing the main heating body proper, viz. the vessels d and e,
the spiral tube connecting the said vessels, and the central pipe c, are connected to
the other parts of the apparatus at x and y in such a manner as to admit of their easy
and frequent removal when necessary for cleaning purposes.
In order that the main heating body may not be suspended or carried by such
connections at a and y the upper vessel e is provided with angle irons or supports g
that rest upon the upper end of the cylindrical vessel a as shewn.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
the downpipe c
A water heating apparatus for baths comprising the cups d and
the spiral tubes and double walled cylinder a the arrangement being such that the
water to be heated first enters the annular space of the double walled cylinder a
and flowing from thence in a downward direction through the pipe c situated in
the central part of the stove enters the double walled lower cup d, from whence it
rises through the spiral tubes finto the double walled upper cup e, passing from this
cup through the pipe g either direct into the bathing vessel at i or through rose l
substantially as described.
10th day of November 1888