Improvements in Vertical Steam Boilers.
Year: 1899

page_text: Date of Application, 7th June, 1899
PROVISIONAL SPECIFICATION.
Improvements in Vertical Steam Boilers.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention as communicated
to me by Dr. C. Oétling; of Strehla on the Elbe, Saxony, Germany, Manufacturer,
to be as follows:-
The object of this invention is to produce a vertical steam boiler so constructed
as to effect a greater circulation of the water as compared with existing boilers
and consequently a more rapid heating of the water and generation of steam.
The distinguishing feature of the invention is a spirally curved vertical flame
tube, in which the flame can freely develop, whilst the heating gases are
throughly mixed with the secondary air of combustion, the hottest gases being
collected in a cap-shape extension of the flame tube and the exhausted gases
which have acquired a greater specific gravity by cooling, descend automatically
through fire tubes passing through the boiler in order that the heating gases may
be properly utilized to their full extent and the combustion effected as free from
smoke as possible.
ال
For the purpose of increasing the circulation of the water, the feeding of the
boiler is effected by means of feed water pipes opening tangentially into the
boiler whereby circular motion of the water in the boiler is produced and thereby
the water more quickly heated and the steam more rapidly generated.
...
The boiler may be furnished with a plane or horizontal grate or, small, coal
fire place.
The grate is fed with coal by way of a fire-door, and fire applied to the boiler.
The flame generated in the vertical flame tube can thereupon freely develop to
the fullest extent. In order that the heating gases may be thoroughly mixed
with the secondary air of combustion which enters through a side channel the
welded flame tube is spirally curved, so that a circular motion of the flame and
of the secondary air is produced, which brings about the mixture of the gases
with the air and consequently a complete consumption of the furnace gases.
In order to prevent the formation of soot the lower part of the flame tube is
built up to a certain height with fire bricks, thereby preventing the cooling of
the flame and the consequent formation of soot. The flame tube is provided
with a cap-shape extension, in which the heating gases collect. Observations
made have shown that the heat in the cap is greater then immediately over the
flame and therefore the water is most quickly heated in the upper part of the boiler
and converted into steam, as the whole of the ascending heating gases in the
cap-shape extension give off the greatest part of the heat which they contain.
In consequence of this giving off of heat, the heating gases naturally acquire
greater specific gravity and therefore descend automatically through the fire
pipes arranged around the flame tube, where they get constantly cooler towards
the bottom, as it is here that the feed water enters and consequently the lowest
temperature in the boiler is to be found. The heating gases descending through

page_text: fire tubes collect in a circular chamber, and pass from there at a proportionately
lower temperature through the tube flue into the chimney.
The boiler is supplied by means of one or more tangentially arranged feed
water pipes. The tangential arrangement of these pipes produces a circular
motion of the water in the boiler, which, like that of the heating gases, is also
greatly assisted by the spirally curved flame tube. In consequence of this
increased circulation of the water, the capacity of the boiler is naturally increased
to no small extent. The feed water pipes are not connected directly with the
boiler, but screwed to hollow bodies in which, there being here the least motion
of the water, the sludge can settle and collect.
In order that the boiler may be readily freed from scale and the like, a cover
is provided made in two parts, that is to say, it consists of an upper and a lower
part, which are removeably connected together by means of flanges and screws.
The additional pressure bearing on the flame tube and the cap is received in a
suitable manner by connecting tubes and by the fire tubes.
Dated this 7th day of June 1899.
F. W. GOLBY,
36, Chancery Lane, London, W.C.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed as communicated to me by Dr. C. Oetling,
of Dresden, Germany, Manufacturer, to be particularly described and ascertained
in and by the following statement:-
This invention relates to a vertical steam boiler, in which the feed-water is
introduced to the boiler in a direction which is approximately tangential to the
boiler circumference, whereby a circular motion is. imparted to the water in the
boiler. By means of this arrangement the water is more quickly heated and
the generation of steam accelerated. If places be arranged in the water space,
at which the motion of the water is diminished, the mud or sludge carried along
by the powerful circulating movement will as a matter of course be deposited at
such places.
The accompanying drawing illustrates a boiler of the kind referred to.
Fig. 1 being a transverse vertical section, and
Fig. 2 a horizontal section.
The arrangement of the boiler illustrated as an example is as follows:-The
heating gases, ascending in the fire place, with its grate a and furnace door
frame b, pass through the flame tube c which is lined at the bottom or lower end
with fire resisting material d, to a cape and thence through the fire tubes f to
the smoke chamber g whence they reach the flue.
The feed-water flows through the feed-water pipes into the boiler k, which
at the water inlet has hollow extensions or pockets i, connected by their total
cross section with the interior of the boiler. Owing to the tangential arrange-
ment of the feed-water pipes h in relation to the circumference of the boiler, the
water (considered in regard to Fig. 2) has imparted to it a right hand rotary
motion around the vertical axis of the boiler, whereby undisturbed places are
found in the extensions in which the mud or sludge is able to settle.
In order that the boiler may be readily freed from scale and the like, the shell
is made in two portions and consists of an upper and a lower part, which are

page_text: detachably connected with one another by means of tightening flanges 7 and bolts
and nuts or screws m.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
--
(1) A vertical boiler in which for the purpose of accelerating the circulation of
the water one or more feed-water pipes run into the boiler in a direction approxi-
mately tangential to the circumference of the boiler shell, substantially as
described.
(2) In a boiler of the kind indicated in Claim 1 the arrangement of hollow.
bodies on the outside of the boiler, communicating through their entire cross
section with the interior of the boiler, the contents of such bodies not participating
in the powerful circulating movement of the water, so that the water which is
undisturbed therein will deposit the mud or sludge which it contains, substantially
as described.
De
قيم
1
.
1 1000
F. W. GOLBY,
Patent Agent, 36, Chancery Lane, London, W.C.