Improvements in Water-tube Steam-boilers.
Year: 1896

page_text: Date of Application, 7th Mar., 1896
Complete Specification Left, 7th Dec., 1896 Accepted, 6th Mar.. 1897
Improvements in Water-tube Steam-boilers.
I, JOSEF SIMONIS, trading as Simonis and Lanz, Steam Boiler Makers, of
Frankfort-on-the-Main, Sachsenhausen, Schulstrasse 3, in the Empire of Germany, do
hereby declare the nature of this invention to be as follows:-
This invention relates to water-tube boilers with a divided circulatory current.
In order to better cool the longitudinal lower tubes of a water-tube boiler which
are most exposed to the action of the fire for the purpose of keeping the same
in better condition, they terminate in one or more collectors which are arranged
so far in front of the tubular system that between the short tubes, which connect
the collectors with the longitudinal or transverse top boilers or drum and the
terminal chambers of the tube system there will remain sufficient space for enabling
the tubes to be fixed in the terminal chambers and the closing devices to be
operated. As the tubes are introduced and removed on the opposite side, that is to
say at the stand for the stoker, and the tubes rise from the front to the rear, the
present construction offers the possibility of placing several boilers closely side by
side, because all parts can be arranged within the limits of the width of the
boiler. From the longitudinal' tubes the steam and water mixture passes to the
collector and is thence conducted through the connecting tubes to the top boiler
or drum, that is to say above the level of the water.
In the various arrangements of the invention a circulating current passes from
the front chamber through the longitudinal tubes, collector, connecting tubes, to the
top boiler or drum and hence back to the front chamber; independently from this,
a second circulating current passes from the said chamber through the tubular system
to the upper or rear chamber and thence back to the front chamber.
In a modification of the said boiler the longitudinal tubes are connected singly
and directly with the top boilers, providing for the two circulating currents similarly
as in the arrangement above described whereas in a further modification the
separation of the circulating current is effected within the terminal chambers by
arranging a partition therein.
The velocity of the circulation in the longitudinal tubes is considerably increased
by the separate and more direct discharge of the steam and water mixture from
these tubes to the top boiler above the water level; consequently the tubes are
cooled proportionately more and thus kept in better condition.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements in Water-tube Steam-boilers.
I, JOSEF SIMONIS, trading as Simonis and Lanz, Steam Boiler Manufacturers
of 3 Schulstrasse Frankfort-on-the- Main, Sachsenhausen in the Empire of Germany,
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 water-tube boilers with a divided circulating current.
In the accompanying drawing I have shewn how my said invention may be
conveniently and advantageously carried into practice, the figures of the said drawing
being hereinafter more particularly referred to.
In order to better cool the longitudinal lower tubes r of a water-tube boiler which
are most exposed to the action of the fire for the purpose of keeping the same in
better condition, they terminate in one or more collectors a which are arranged so
far in front of the tubular system that between the short tubes s which connect the
collectors with the longitudinal or transverse top boilers or drum o and the terminal
chambers c of the tube system there will remain sufficient space for enabling the
tubes to be fixed in the terminal chambers and the closing devices to be operated.
As the tubes are introduced and removed on the opposite side, that is to say at the
stand for the stoker, and the tubes rise from the front to the rear, the present
construction offers the possibility of placing several boilers closely side by side,
because all parts can be arranged within the limits of the width of the boiler. From
the longitudinal tubes r the steam and water mixture passes to the collectors a and is
thence conducted through the connecting tubes s to the top boiler or drum o, that is
to say above the level of the water.
In the various arrangements of the invention represented in Figures 1 to 4 of the
accompanying drawing a circulating current passes from the front chamber b through
the longitudinal tubes r, collectors a, connecting tubes s, to the top boiler or drum o
and thence back to the front chamber b; independently from this, a second circulating
current passes from the said chamber 6 through the tubular system c to the upper or
rear chamber and thence back to the front chamber b.
In the modifications shown in Figures 5 and 6 the longitudinal tubes rare
connected singly and directly with the top boilers, providing for the two circulating
currents similarly as in Figures 1 to 4, whereas in the modification represented in
Figure 7 the separation of the circulating current is effected within the terminal
chambers by arranging a partition d therein.
The velocity of the circulation in the longitudinal tubes r is considerably increased
by the separate and more direct discharge of the steam and water mixture from these
tubes to the top boiler above the water level; consequently the tubes are cooled
proportionately more and thus kept in better condition.
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 :-
A water tube boiler with a divided circulating current, characterized by the fact
that for the purpose of facilitating the discharge of steam and water mixture from the
tubes generating most steam, and for the purpose of keeping these tubes in better
condition, the connection of the tubes r most exposed to the action of the fire and
extending to the top boiler or top boilers or drums is effected separately from the
other tubes, either direct or through the intervention of a collector a arranged in
front of the tubular system and connecting tubes the latter being arranged within

page_text: the width of the boiler with a view to placing several boilers immediately side by side,
and serving to conduct the mixture of steam and water above the level of the water
in the boiler.
Dated this 7th day of December 1896
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.