Improvements in or Appertaining to the Heating of Water, Air, or other Fluids.
Year: 1888

page_text: Date of Application, 18th Sept., 1888
Complete Specification Left, 31st May, 1889-Accepted, 6th July, 1889
PROVISIONAL DIVIFICATION.
Improvements in or Appertaining to the Heating of Water, Air,
or other Fluids.
We, CHARLES FREDERICK SEWARD and HENRY GRANT WALTON, both of Market
Street, Lancaster, in the County of Lancaster, Engineers, do hereby declare the nature
of this invention to be as follows:-
This invention relates to apparatus for heating water or other fluids by means of
metallic surfaces, heated by contact with steam. Its immediate object is the
construction of a simple and efficient apparatus for heating water for the warming of
dwellings and the like, though the apparatus is equally applicable in other cases in
which hot fluids are required.
The heating chamber is preferably in the form of cylinder open at one end and
placed with its axis horizontal, though it may be placed in other positions. It is
provided at a suitable point or points with one or more sockets or connections for the
water flow pipe or pipes, and with a preferably similar number of sockets or
connections for the water return pipe or pipes.
The open end of the aforesaid cylinder is covered by a tube plate, and over the
outer face of the tube plate there is secured a shallow steam chest, which is divided
into two chambers by a transverse, and preferably horizontal, partition. One of these
chambers, (the top one in a horizontal apparatus), is provided with a steam inlet, and
the other is provided with an outlet for condensed steam, and if required, with
an outlet for the uncondensed steam. Or a single outlet might serve both purposes.
The heating cylinder contains a series of heating tubes each somewhat in the form
of a U. One end of each tube is secured to the tube plate, so as to open into one of
the chambers aforesaid, and the opposite end is secured to the tube plate in such
a manner as to open into the other of the said chambers. In a horizontal apparatus
the chambers aforesaid are located one above the other, and the U-tubes lie
approximately in vertical planes, their central axes being preferably in the horizontal
plane passing through the axis of the cylinder, and their legs being preferably slightly
divergent.
The tube plate or other parts may be suitably stayed or strengthened, if required.
The mode of action is as follows:
Steam enters the upper chamber of the steam chest, passes along the upper legs of
the U-tubes, and returns along their lower legs into the lower chamber, heating the
fluid in the cylinder in its passage through the tubes. The whole of the steam
condensed in the tubes is, by reason of their form and position, led into the lower
chamber aforesaid, serving in its passage through the tubes, as an additional heating
medium. The condensed steam, and the steam remaining uncondensed, are both led
away from the lower chamber by the outlet or outlets aforesaid.
Dated th: 17th 1
1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or Appertaining to the Heating of Water, Air,
or other Fluids.
We, CHARLES FREDERICK SEWARD and HENRY, GRANT WALTON both of Market
Street, Lancaster in the County of Lancaster, Engineers 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 apparatus for heating water or other fluids by means of

page_text: metallic surfaces, heated by contact with steam. Its immediate object is the
construction of a simple and efficient apparatus for heating water for the warming of
dwellings and the. like,. though the apparatus is equally applicable in other cases in
which hot fluids are required.
We will describe a form of our apparatus, applicable for heating the water which
circulates through pipes for the purpose of warming dwellings of the like, referring to
the accompanying drawing, in which,
Figure 1 is a longitudinal section of the apparatus.
Figure 2 is cross section on xx, Figure 1.
We provide a heating chamber A in the form of a cylinder, one end of which is
formed open, and the other closed by a diaphragm A¹ or its equivalent, preferably
made in one with the sides of the chamber A, though it might be made in the form of
a separate removable cover, which would facilitate the cleaning of the heating chamber.
The chamber A is provided at a suitable point or points with one or more sockets or
connections B, for the water flow pipe or pipes, and with a preferably similar number
of sockets or connections B¹ for the water return pipe or pipes.
The open end of the aforesaid cylinder is covered by a tube plate (suitably stayed
or strengthened by a web c² or its equivalent) and over the outer face of the tube
plate there is a shallow steam chest, one side of which is formed of the tube plate C
aforesaid, the outer portion consisting of a separate shell (1, which may be attached to
the tube plate or walls of the cylinder in any suitable manner.
This steam chest is divided into two chambers.c c¹ by a transverse and preferably
horizontal partition d. One of these chambers, c, is provided with a steam inlet, such
as the pipe E, and the other, c', is provided with an outlet E¹ for condensed steam,
and, if required, with an outlet for the uncondensed steam. Or a single outlet might
serve both purposes.
The heating cylinder A contains a series of heating tubes F, each somewhat in the
form of a U. One end of each tube is secured to the tube plate so as to open into
one of the chambers c aforesaid,, and the opposite end f¹ is secured to the tube plate in
such a manner as to open into the other of the said chambers c'. In a horizontal
apparatus, such as is shown, the chambers aforesaid are located one above the other,
and the tubes F lie approximately in vertical planes, their central axes being
preferably in the horizontal plane passing through the axis of the cylinder, and their
legs being preferably slightly divergent.
The mode of action is as follows:-
Steam enters the upper chamber of the steam chest, c, passes along the upper legs
of the tubes F, and returns along their lower legs into the lower chamber c¹,
heating the fluid in the cylinder in its passage through the tubes. The whole of the
steam condensed in the tubes F is, by reason of their form and position, led into the
lower chamber c¹ aforesaid, serving, in its passage through the tubes, as an additional
heating medium. The condensed steam and the steam remaining uncondensed, are
both led away from the lower chamber by the outlet E¹ or outlets aforesaid.
The water which surrounds the tubes in the heating chamber A being heated by the
steam therein, rises and flows through the pipes attached to the socket B, re-entering
by the lower sockets B¹, and in this manner a good circulation and heating are
maintained. The apparatus is also applicable for heating fluids other than water.
A safety valve may be attached, if desired, to the chamber A or at other point or
points. Where a larger apparatus is required without increasing its diameter, we
may place two heating chambers end to end, the steam chambers C¹ C¹ being at the
extreme ends of the apparatus and the diaphragms. A' A¹ removed.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what, we claim is :-
1. An apparatus for heating water, air, or other fluids, consisting of a heating
chamber provided with one or more inlet and outlet openings and adapted to contain
the fluid to be heated, a series of U-shaped steam tubes enclosed by said chamber and.

page_text: having their open ends attached to a tube plate forming one end of the same, and a
double steam chamber covering said tube plate, and so arranged with respect to the
open ends of said tubes that the steam entering one portion of the steam chamber has
to pass through the tubes to reach the second portion which is provided with a suitable
outlet, substantially as and for the purposes set forth.
2. The improved heating apparatus for water, air, or other fluids, taken as a whole,
substantially as described and shown.
Dil LL 1
C
1000
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.