IMPROVEMENTS IN APPARATUS FOR HEATING WATER BY MEANS OF Steam, OR FOR CONDENSING VAPOUR
Year: 1871

page_text: LETTERS PATENT to Henry Jackson, of Park Square, Leeds, in the
County of York, Consulting Engineer, for the Invention of
"IMPROVEMENTS IN APPARATUS FOR HEATING WATER BY MEANS OF Steam,
OR FOR CONDENSING VAPOUR."
Sealed the 3rd April 1872, and dated the 21st October 1871.
PROVISIONAL SPECIFICATION left by the said Henry Jackson,
at the Office of the Commissioners of Patents, with his Petition,
on the 21st October 1871.
I, HENRY JACKSON, of Park Square, Leeds, in the County of York,
Consulting Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN APPARATUS FOR HEATING WATER BY MEANS OF STEAM,
OR FOR CONDENSING VAPOUR," to be as follows:-
My Invention relates more particularly to apparatus for heating water
by means of steam or of waste steam, as for example, the feed water for
steam boilers, and is also applicable to be used in some cases for con-
densing vapours.

page_text: necessary.
The said apparatus consists of a number of sections or trays formed of
cast iron or other suitable material which are piled one upon another, as
many trays being used in each case as may be desired or found to be
Each tray, with the exception of the top tray which forms
the cover, is cast or otherwise formed with a raised outer edge to retain
the water or liquid, and also with raised edges of lesser depth surround-
ing any openings which may be formed for the passage of steam and
vapour and water or liquid so that a layer of liquid is retained within
each tray. Flanches, edges, or partitions are also cast or formed on the
under side of each tray, with the exception in some cases of the lower
one, the said flanches, edges, or partitions on one tray dipping into the
water or liquid in the tray beneath when the said trays are piled
together as aforesaid, the said water or liquid forming a water joint to
prevent the escape of steam or vapour.
When used for heating water the said water is admitted at the upper
end of the pile, and flows from tray to tray through openings, and steam
or vapour is admitted at the lower end of the pile, and flows through
the spaces between the said trays and over the surface of the water
contained therein.
Where the object is to condense as much of the steam or vapour as
possible a passage or passages for the flow of air through the pile and
between the pile and the said trays may be formed. Any deposit which
may form in the trays may be readily removed, as access may be had to
any tray by removing the trays above the said tray. The water may flow
through a filter after leaving the aforesaid apparatus if desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Jackson in the Great Seal Patent Office on
the 13th April 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
JACKSON, of Park Square, Leeds, in the County of York, Consulting 3
Engineer, send greeting.

page_text: year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Henry Jackson, Her
special license that I, the said Henry Jackson, my executors, adminis-
trators, and assigns, or such others as I, the said Henry Jackson,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN APPARATUS FOR HEATING WATER BY MEANS OF STEAM, OB
FOR CONDENSING VAPOUE," upon the condition, amongst others, that I,
the said Henry Jackson, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters

page_text: When used for heating water the said water is admitted at the upper
end of the pile, and flows from tray to tray through openings, and
steam is admitted at the lower end of the pile, and flows through the
spaces between the said trays and over the surface of the water contained
therein.
In order that
be well understood I have annexed
Invention may
my
hereunto a Sheet of Drawings marked with letters of reference, to which
I will in this place refer.
5
Fig. 1 represents one of the said "trays" drawn in plan, and Fig. 2 a
vertical section of an apparatus for heating water or liquid. In Fig. 2 a 1
pile of trays is represented as being mounted on a tank which is formed
with and inlet A, and an outlet B for steam. The said trays are in this
example of an oval shape. The said outlet B is surrounded by an
annular channel into which dips n flanch which surrounds the inlet
opening formed in the lowest tray M, a water joint being thus formed. 1
The said inlet opening is formed with a raised edge 2, and the outer
edge of the tray is formed with a flauch 3, which serves to retain a layer
of water or liquid on the said tray. The second tray N is formed on thic
under side and near the outer edge with a projecting flanch which rests
upon the lower tray, and forms a water joint with the liquid in the said
lower tray.
The said second tray is also provided with an inlet opening B, and is
formed with a flanch 3. In the centre of each of tho said trays is also
formed an air opening L which is surrounded with a raised edge 4, and
on the under side of the tray N is formed a flanch 5 which dips into the
liquid in the tray M, and forms a water joint therewith. The tray N is
provided with a cover O, which is formed with flanches 4 and 6, and
with an opening B communicating with a third tray. The trays are
thus divided into sections, cach of which contains two trays, thero being
an air space between each section, and a central air space formed by the
air openings L and the flanches 6. The said air spaces are introduced in
order that the steam or vapour may be more completely condensed, but
in cases wherein this is not necessary or advisable, or wherein the
apparatus, is made sufficiently large to effect the condensation of the
steam or vapour without the assistance of the said air spaces, such air
spaces are dispensed with.
In such cases all of the trays, or all of the trays with the exception
of the ton and bottom trays, are or may be exactly alike, and are each

page_text: formed with an opening B, a raised edge 2, and a raised outer edge or
flanch 3, but without the opening L the raised edge 5 and the flanch 6,
and the said trays aro piled one on another with the openings B reversed
in position, as in the Drawings. The steam entering at the opening A
enters the pile of trays and flows through the said pile in the direction
of the arrows, any steam or vapour not condensed leaving the apparatus
through the outlet C. The water or liquid to be heated is admitted at
D, and flows from one tray to another over the raised edges 2 until it
falls into the compartment E of the tank, each tray being covered with
liquid to a depth corresponding to the height of the raised edge 2.
The said water or liquid flows through the aperture or apertures F and
through a perforated plate G, between which and an upper perforated
plate H is placed any suitable filtering medium or material. The water
or liquid flows through the said filtering medium and over the portion I,
and is discharged or withdrawn through the exit opening K.
Any deposit which may form in the trays may be readily removed, as
access may be had to any tray by removing the trays which may be
above the said tray. It will will be seen that the said apparatus may be.
readily and cheaply constructed, as each tray may consist simply of a
single casting, and that the said trays may be put together without any
fitting" or toolwork," and also that the efficiency of an apparatus
may be readily increased by increasing the number of trays in the said
apparatus.
"
"
Having now fully described and illustrated the nature of my said
Invention, I would in conclusion have it to be distinctly understood that
I claim the employment for the purposes herein-before set forth of trays
which are formed to make water joints one with another, and are other.
wise formed and arranged, substantially as described, indicated, and
illustrated herein, and by the accompanying Drawings.
In witness whereof, I, the said Henry Jackson, have hereunto
set my hand and scal, this Sixth day of April, in the year of
our Lord One thousand eight hundred and seventy-two.