Improvements in Tubular Boilers or Steam Generators.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Tubular Boilers or Steam Generators.
I, MAX GEIRE of Rath, near Düsseldorf in the Empire of Germany,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to those tubular boilers in which the water tubes open
into a common water chamber which communicates with an upper boiler by means
of a tube communicating with the water chamber and a tube communicating with
the steam chamber.
The invention consists in forming within such a water chamber, a steam collector
over the mouth of each row of tubes, by fixing transverse and side partitions in the
water chamber, these steam collectors being connected both with one another and
with the upper boiler. By this arrangement the formation of steam and its removal
from the various tubes is considerably facilitated.
The interior of the water chamber, lying in front of the tubes is provided with
watertight transverse partitions or divisions forming a series of separate compart-
ments one above the other. These compartments are closed at their ends by side
walls in which openings are provided through which may enter the water flowing
through a pipe from the upper boiler into the main chamber. The said
compartments are connected with one another by short pipes which stand with
their upper ends opening nearly close to the upper partition of their respective
compartment, whilst their lower ends penetrate the lower partition and protrude a
little into the compartment below. The uppermost compartment is connected with
the steam chamber of the upper boiler by means of a steam pipe.
The invention works in the following manner :—
Water from the upper boiler stands with full pressure in the whole water
chamber and before the steam is generated fills completely the water chamber and
the various transverse compartments. As soon as steam commences to be given
off, it flows from the water tubes into the transverse compartments and in
consequence of its specifically lighter weight first occupies the upper part of these
separate compartments and forces the water back until the lower ends of the
connecting pipes are above the level of the water. The steam then commences to
flow through these pipes into the corresponding steam space formed in the same
way in the compartment next above and so forth, until after having forced back
the water in the uppermost conipartment it can escape through the steam pipe to
the steam chamber of the boiler.
As much water as is evaporated will always flow in through the openings formed
in the side walls of the various transverse compartments. This inflow of water is
automatic and requires no special regulating by hand.
Instead of the said transverse compartments, partitions in the form of inverted
gutters or channels may be arranged in the interior of the water chamber, which
gutters or channels are open beneath and closed at their sides as far from the top
as the steam space is intended to extend. These gutters or channels and therefore
the steam spaces therein, which lie one above the other are also connected with
one another by means of connecting pipes as before described.
Dated this 25th day of February 1895.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.

page_text: Improvements in Tubular Boilers or Steam Generators.
I, MAX GEHRE of Rath near Düsseldorf in the Empire of Germany,
Manufacturer, 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 those tubular boilers in which the water tubes open
into a common water chamber which communicates with a steam and water drum
by means of a tube communicating with the water space and a tube communicating
with the steam space.
The invention consists in forming within such a water chamber, a steam
collector over the mouth of each row of tubes, by fixing transverse and side
partitions in the water chamber, these steam collectors being connected both with
one another and with the steam space of the upper boiler. By this arrangement,
the formation of steam and its removal from the various tubes is considerably
facilitated.
In the accompanying drawings,
Figure 1 shows in front elevation partly in section a water chamber arranged
in this way.
Figure 2 is a side elevation partly in section of the water chamber with the
water pipes shown broken off';
Figures 3 and 4 show similar views to Figures 1 and 2 of a further form of
construction.
The interior of the water chamber B lying in front of the tubes is provided
with watertight transverse partitions, or divisions, (Figures 1 and 2) forming a
series of separate compartments 1, 2, 3, 4, one above the other. These
compartments are closed at their ends by side walls in which openings o are
provided through which may enter the water flowing through a pipe w from the
upper boiler into the main chamber. The said compartments 1, 2, 3, 4, are
connected with one another by short pipes C which stand with their upper ends
opening nearly close to the upper partition of their respective compartment, whilst
their lower ends penetrate the lower partition and protrude a little into the
compartment below. The uppermost compartiment is connected with the steam
space of the upper boiler by means of a steam pipe s.
The invention works in the following manner :-
Water from the steam and water drum stands with full pressure in the whole
water chamber and before the steam is generated fills completely the water
chamber and the various transverse compartments 1, 2, 3, 4. As soon as steam
commences to be given off, it flows from the water tubes R into the transverse
compartments 1, 2, 3, 4, and in consequence of its specifically lighter weight first
occupies the upper part of these separate compartments and forces the water back
until the lower ends of the connecting pipes C are above the level of the water.
The steam then commences to flow through these pipes C into the corresponding
steam space formed in the same way in the compartment next above and so forth
until after having forced back the water in the uppermost compartment it can
escape through the steam pipes to the steam chamber of the boiler.
As much water as is evaporated will always flow in through the openings o
formed in the side walls of the varicus transverse compartments. This inflow of
water is automatic ard requires no special regulating by hand.
Instead of the said transverse compartments, partitions in the form of inverted
gutters or channels 1, 1, 2, may be arranged in the interior of the water chamber,
which gutters or channels are open beneath and closed at their sides as far from
the top as the steam space is intended to extend (Figures 3 and 4). These gutters

page_text: or channels and therefore the steam spaces therein, which lie one above
the other are also connected with one another by means of connecting pipes C
as before described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In a tubular boiler, a water chamber having over the mouth of each row of
water tubes (R) a steam collector formed by an arrangement of transverse
chambers (1, 2, 3, 4), or by an arrangement of gutters or channels (r r³ ³) open
below, said steam collectors being in communication with the steam chamber of
the steam and water drum and with one another by means of tubes substantially as
and for the purpose set forth.
Dated this 25th day of November 1895.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.