Year: 1899

page_text: I, ARNOLD DOCKIR, of Buenos Ayres, in the Argentine Republic, Manufac-
turer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in steam generators.
According to the invention 1 provide a drum preferably cylindrical in shape
and provided with the usual fittings such as safety valves, steam outlet, man-
hole, gauge, etc. The water is fed into the said drum from which the main
portion of the generator extends downwards, the said main portion being formed
of cylinders of sheet metal rivetted together and terminating at its lower end
in a well or collector to which a draw-off cock is fitted. The upper part of the
main pipe is provided with a communication tube and the well or collector
with a partition.
The main pipe is connected by necks to tube boxes which can be of any
suitable shape such as square, round, oval, polygonal, etc. The said boxes are
connected together in pairs by tubes arranged in bundles and are closed by
ribbed covers.
These covers, which are made with tight joints, are removable
for the purpose of enabling the tubes to be cleaned.
The grate is arranged in the front part of the generator and the hot gases
therefrom circulate all around the tubes and the main pipe and ultimately pass
out to the chimney through a suitable passage or flue. A partition, which is
made of refractory material, is provided to compel the hot gases to spread
thoroughly over the upper part of the tubes so as to give up all their heat.
Doors are arranged on each side of the boiler for enabling the tubes to be
cleaned externally and to permit of the removal of soot. This cleaning can be
effected with the greatest facility by ordinary means, for example by means of
steam jets.
The operation of the generator is very simple. The water which enters the
boiler flows into the main body through the communication tube and then
passes into the lower boxes, after which it rises through the bundles of tubes,
traverses the upper boxes and passes to the steam drum.
The partition arranged in the bottom of the main pipe has for its object to
divide the column of water in such a manner as to ensure its distribution equally
into the two bundles of tubes.
It will be seen that by the general arrangement of the above described gene-
rator, the water is heated progressively from its entry into the steam drum
until its return thereto. As a result of this arrangement an abundant and rapid
generation of steam is effected and incrustations are practically avoided.
Dated the 5th day of June 1899.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.

page_text: I, ARNOLD DOCKIR, of Buenos Ayres, in the Argentine Republic, Manufac
turer, 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 improvements in water-tube steam generators,
whereby a large heating surface and, consequently, a large production of steam
is obtained in a relatively limited space. My new steam generator consists essen-
tially of a cylindrical drum united to a vertical main pipe, also cylindrical, and
on the upper and lower parts of which are tube-boxes united in pairs by clusters
of vertical tubes in which water coming from the drum and main pipe circulates
upwards in a continuous manner, becomes heated very rapidly, and finally.
returns to the drum, whence it passes as steam.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which:-
Figure is a central vertical section of a water-tube steam generator con-
structed according to my invention.
Figure 2 is a vertical section on the line 3-4 of Figure 1.
Figure 3 is a partial section on the horizontal line 1-2 of Figure 1 and
showing in plan a tube-box and the arrangement of the tubes thereof.
A is the steam drum. It is of cylindrical shape and provided with various
fittings such as safety valves a, a, steam outlet, and man-hole ; it is also
provided at the proper parts with a gauge, a water level and all other necessary
accessories. I have shewn the water inlet placed at a but it is obvious that
the feed may take place at any other point according to circumstances, for
example, at the lower part of the main tube.
To the said drum A is connected the main tube B formed of sheet iron cylinders
jointed together and terminated at its lower part by a well or collector to
which a draw-off cock is fitted. This cylinder B is, besides, provided at its
upper part with a communication tube and at the lower part with a parti-
tion hereinafter referred to.
On the main pipe 13 and by means of necks 63, 64, 6, and 66 are fitted the tube-
boxes C, C, C2, C. These boxes, as shewn in Figure 3, are of square shape,
but I would remark that this shape is not arbitrary and that they may be of any
other suitable form such as round, oval, polygonal, etc. They receive, by the
usual means, the tubes D and D) arranged respectively in clusters and are closed
on the sides opposite to those into which the tubes open, by ribbed covers c, d,
3, having tight joints; these covers are removable for the purpose of allowing
the tubes to be cleaned by means of tube scrapers for example.
The generator further comprises the grate F arranged in front and from which
the hot gases circulate all around the tubes and main pipe B and finally pass
through the passage f to the chimney. A partition E, of refractory material,
placed at about the middle of the height of the main pipe B which it surrounds
in the space comprised between the main pipe and the clusters of tubes, is
designed to compel the hot gases which strike thereon to spread over the upper
part of the tubes and to thus give up all their heat.
Doors G. Gare arranged at each side of the boiler to allow the outside of the
tubes D, D¹ to be cleaned and the soot to be removed. This cleaning, which is
very important, can be effected with the greatest facility by the ordinary means
preferably by means of steam jets.

page_text: The operation of my improved generator is most simple. Suppose, for example,
the feed to take place at at, it will be seen that the water will flow into the main
pipe B through the communication tube 6¹ and enter the tubes D, D and rise
into the upper boxes C, C whence it will pass into the steam drum A.
The
partition arranged in the bottom of the main pipe B and between the necks b
and serves to divide the column of water in such a manner as to ensure its equal
distribution in the tubes or, rather, in the boxes C², C³.
I would remark that, by the general arrangement of the steam generator
hereinbefore described, the heating of the water takes place progressively from
the time of its entry into the drum until its return. The result is an abundant
and rapid production of steam; moreover it will be readily understood that the
incrustation of the tubes is reduced to a minimum or even entirely prevented,
and the cleaning of the said tubes is, besides, very easy as already mentioned.
I can arrange below the partition E, and on each side of the main pipe B, a
bridge for directing the hot gases, and can also construct the generator with
several more clusters of tubes the number and arrangement of which upon the
tube boxes may vary to a considerable extent.
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:-
The improved steam generator herein before described and illustrated mainly
consisting of two clusters of vertical tubes the two ends of which open into tube-
boxes connected to a vertical main pipe in communication with the steam drum
of the generator, substantially as set forth.
Hatod tho
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G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.