IMPROVEMENTS IN STEAM GENERATORS
Year: 1876

page_text: LETTERS PATENT to Charles William Gauntlett, of Southsea, in the County of
Hants, for the Invention of "IMPROVEMENTS IN STEAM GENERATORS."
the 4th May 1877, and dated the 1st December 1876.
PROVISIONAL SPECIFICATION left by the said Charles William Gauntlett at
the Office of the Commissioners of Patents on the 1st December 1876.
CHARLES WILLIAM GAUNTLETT, of Southsea, in the County of Hants.
PROVEMENTS IN STEAM GENERATORS."
"IM-
This Invention relates to vertical steam generators of the non-multitubular class,
and it has as its objects the more economical generation of steam therein and the
consequent saving of fuel.
In this class of boilers as hitherto constructed the fire-chamber is merely sur-
rounded with water, or it is surrounded with a few cross water tubes. In these
boilers the draft up the chimney draws the products of combustion from the fire-
grate by the most direct route which is straight up the centre of the boiler to the
chimney, forming a cone of flame, whence a material portion of the heated gases
escapes without utilizing its heat by imparting it to the surrounding water as
desired. Thus great loss is occasioned and there is a great waste of fuel.
This Invention consists in causing the heated gases to ascend from the fire-grate
in a cylindrical form in such a manner as to impinge against all sides of the fire-
chamber, and thus directly heat the surrounding water, and this I accomplish by
placing above the topmost of the cross water tubes a diaphragm of a diameter but
a few inches less than the diameter of the fire-chamber at that part. This plate
causes an annular draft, and the products of combustion are thereby compelled on
their passage from the fire-grate to impinge against all sides of the fire-chamber and
impart their heat, thereto, which is immediately absorbed by the water.
generation of steam is thus much facilitated, and the consumption of fuel considerably
lessened.
The
The diaphragm may be made in parts, hinged or otherwise connected to allow of
it being readily fixed in boilers; and it may be bracketted to the upper tube, or
suspended from the dome of the fire-chamber, or otherwise supported, as found most
convenient.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles William Gauntlett in the Great Seal Patent Office on the 25th
May 1877.
CHARLES WILLIAM GAUNTLETT, of Southsea, in the County of Hants.
PROVEMENTS IN STEAM GENERATORS."
*r
"IM-
This Invention relates to vertical steam generators of the non-multitubular class,
and it has as its objects the more economical generation of steam therein and the
consequent saving of fuel.
In this class of vertical non-multitubular steam boilers as hitherto constructed
the fire-chamber is merely surrounded with water, or it is provided with a few
cross water tubes. In these boilers the draft up the chimney draws the products
of combustion from the fire-grate by the inost direct route which is up or near the
centre of the fire-chamber to the chimney forming a cone of flame, by which a
material portion of the heated gases escapes without utilizing its heat by imparting
it to the surrounding water as desired. Thus great loss is occasioned and there is
much waste of fucl.
My Invention (which is illustrated on the accompanying Drawings in Figures 1
and 2, which are respectively a vertical section and a transverse section) consists
in causing the heated gases to ascend from the fire-grate 1 in a cylindrical form in
such a manner as to impinge against all sides of the fire-chamber 2, and thus
directly heat the surrounding water; by placing above the topmost of the cross
water tubes 3 a diaphragm 4 of a diameter but a few inches less than the diameter
of the chamber 2 at that part, this plate 4 causes an annular draft, and the pro-
ducts of combustion are thereby compelled on their passage from the grate 1 to
impinge against all sides of the chamber 2 and impart their heat thereto which is
immediately absorbed by the water. The generation of steam is thus much
facilitated, and the consumption of fuel considerably lessened.
The diaphragm 4 may be made in parts, as shown in Figure 2, hinged or other-
wise connected to allow of being readily fixed in boilers; and it may be bracketted
to the upper tube 3, as shown in Figure 1, or suspended from the dome 5 of the
chamber 2, or otherwise supported, as found most convenient.
Having now described the nature and objects of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that I claim as my Invention, the application
and adaptation to the fire-chamber of vertical steam generators of the non-
multitubular class, of a diaphragm or plate of a diameter but a little less than that
of the chamber, in such a position as to cause the heated gases to ascend from the
fire-grate in a cylindrical or annular form and impinge against all sides of the fire-
chamber, and thus directly heat the surrounding water (substantially as herein-
above described, and as illustrated on the accompanying Sheet of Drawings), and
whereby steam is more economically generated, requiring a less consumption of fuel.
In witness whereof, I, the said Charles William Gauntlett, have hereunto set
my hand and seal, this Twenty-fourth day of May, in the year of our Lord
One thousand eight hundred and seventy-seven.
-מד וחוז”