Year: 1886

page_text: 1 JOSEPH ADDISON ENO, of 296 Mulbery St., in the City of Newark, County
of Essex and State of New Jersey, U.S.A. Manufacturer do hereby declare the
nature of this invention to be as follows:-
The objects of this invention are to provide for ensuring a more complete and
effective circulation of the water in steam boilers or steam generating apparatus;
to remove the sedimentary deposits from the said boilers and thereby increase
their durability and the efficiency of the heat; and also to provide a steam-
generating apparatus which can be readily attached and easily adjusted to a boiler,
and so arranged therewith as to utilize, to the fullest extent, the heat applied
thereto without impeding or interfering with the direct action of the heat on the
crown sheets, or the sheets immediately over the fire, of the said boiler.
The said invention comprises a series or group of generator flues provided with
double walls between and through which the water passes the water space in the
said flues being connected with a boiler or water tank by suitable pipes, and
preferably arranged centrally under the said boiler over the bridge wall.
The improved generator is adapted to be applied to any boiler to cause the
circulation of the water therein, the removal of the sediment therefrom, and to
increase the quantity and improve the quality of the steam produced.
The generator consists of one or more flues and the several' parts connected
therewith.
The said generator flues may be used singly, or in groups of as many as may be
desired, and are preferably placed under the centre of the boiler, between the ends
thereof, with their forward ends resting on the bridge wall, the flames and heated
gases from the fire passing over, around, and through the said flues. The generator
flues may be constructed, and the pipe connections made, in any suitable inanner.
Each of the said flues consists of an inner tube of any shape in cross section,
extending the full length of the flue, chambered heads on the ends of the tube, and
an outer tube surrounding the inuer tube and screwed in the inner walls of the
heads, leaving a water-space between the said inner and outer tubes, which extends
to, and communicates with, the chambers in the heads.
Beneath the rear ends of the generator flues is a cylinder or T-branch communi-
cating with one of the said heads by pipes the said cylinder being connected by a
pipe with a sediment pipe, which is in turn connected with the bottom of the
boiler by another pipe. The sediment pipe leads downward to a drum or sediment

page_text: receptacle which is of sufficient capacity to hold the deleterious precipitates falling
thereinto from the water as it flows from the boiler through the pipe over the
mouth of the sediment pipe.
The generator flues are connected at their front ends with the front of the boiler
by pipes which preferably turn outwardly away from the central line of the boiler,
thereby avoiding all obstruction to the direct action of the fire on the said boiler.
Any desired number of the said generator flues may be grouped together and
connected to one or more of the said pipes.
The said connections are preferably made by means of Y-branches which permit
the several currents of water from different generator flues to unite and form one
current without impeding each other.
The pipes to which the flues are connected preferably pass through the fire
chamber near its sides or edges and convey the said currents of water together
with the steam, from the generator flues into the front of the boiler preferably at
about the water line.
The pipes may communicate with the interior of the heads at any point directly
at the bottom, at the top, or at both top and bottom. One advantage, resulting
from their entering the heads at the bottom is that there is no opportunity afforded
for the deposition of the impurities contained in the water, the only place at which
the said deposition can take place being the sediment pipe which conveys the
impurities into the sediment drum.
By this construction and arrangement of a generator the heat and flames
from the fire have free and unimpeded access to the whole of the boiler, the
generator flues by commencing only at the bridge wall and extending rearward
therefrom, presents no obstacle to the action of the fire on the boiler in front of
the said bridge wall while affording to the flames and heated gases in their passage
beyond the said bridge wall practically the same access to the bottom of the boiler
as would exist if no generator was employed.
It will thus be seen that by this arrangement of the generator, the boiler itself
is enabled to form as much steam as before the generator was employed, while the
whole of that produced by the said generator is so much additional steam which is
thereby superadded to that produced by the boiler.
The sediment pipe is preferably made very much larger in diameter than the
other pipes, so as to reduce the motion of the water therein and thereby permit
the impurities to gravitate into the sediment drum.
The arrangement of the generator flues may conform to the curve of the boiler
or they may be placed in one plane, or in any other desired position.
When the generator is in operation the water passes out of the rear of the
boiler through a pipe, into the generator and from the said generator into the front
of the said boiler through another pipe, maintaining thereby a continuous current
and constant circulation of the water through the whole length of the boiler and
generator, separating and removing the sediment from the said water; preventing
the formation of scale within the boiler and thereby adding to its efficiency and
durability, and at the same time largely increasing the supply of steam and the
economy of fuel used in its production.
It will be readily understood that the said generator flues and pipes may be
constructed in a variety of ways and forms other than those herein described,
I therefore do not wish to be understood as limiting myself in any manner to the
special forms of construction and arrangement herein set forth.

page_text: I, JOSEPH ADDISON ENO, of 296 Mulbery Street, in the City of Newark;
County of Essex, and State of New Jersey, United States of America, Manu
facturer, do hereby declare the nature of this invention and in what inanner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to steam boilers or generators and has for its objects to
ensure a more complete and effective circulation of the water than heretofore; to
remove the sedimentary deposits from the said boilers and thereby increase their
durability and the efficiency of the heat; and also to provide steam generating
apparatus which can be readily attached and easily adjusted to a boiler, and so
arranged in connection therewith as to utilize to the fullest extent the heat
applied thereto without impeding or interfering with the direct action of the heat
on the crown sheets, or the sheets immediately over the fire, of the said boiler.
The said invention comprises a series or group of generator flues provided with
double walls between and through which the water passes, the water space around
the said flues being connected with a boiler or water tank by suitable pipes, and
preferably arranged centrally under the said boiler over the bridge wall sub-
stantially as hereinafter set forth.
In the accompanying drawings,
Figure 1 is a side elevation of a boiler to which my improved generating
apparatus is attached, illustrating one arrangement and construction of the same.
Figure 2 is an elevation of the rear of said boiler and generating apparatus..
Figure 3 is, a plan of the generating apparatus illustrating one method of
grouping a series of four generator flues, one of said flues being therein shown in
section.
+
Figure 4 is an elevation of the front of the boiler and the generating apparatus
the flues being arranged in the same plane.
Figure 5 is a longitudinal section of one of the generator Alues shown in
figure 3.
:
Figure 6 is a section of one of the chambered heads of said flues on the line x, x
figure 5.
Figure 7 is a plan of two of the generator flues illustrated in figure, 1; and
Figure 8 is a longitudinal section of one end of one of, said flues illustrating the
pipe connection and form of the chambered head.
Similar letters of reference indicate corresponding parts in the several figures.
A represents a boiler or water tank with which the improved generating
apparatus may be used, said generating apparatus being adapted to be applied to
any boiler, to cause the circulation of the water therein and the removal of the
sediment therefrom, and to increase the quantity and improve, the quality of the
steam produced.
The generating apparatus consists of one or more flues B and the several parts
connected therewith,
☑

page_text: .
1
The said generator flues may be used singly, or in groups of as many as may be
desired, and are preferably placed under the centre of the boiler, between the ends
thereof, with their forward ends resting on the bridge wall as illustrated in Figure 1
the flames and heated gases from the fire passing over, around and through the
said flues as indicated by the arrows in Figures 1 and 3. The generator flues may
be constructed and the pipe connections made as illustrated in Figure 5, or as in
figures 1, 7 and 8 or in any other suitable manner.. Each of the said flues consists
of an inner tube b of any shape in cross section, extending the full length of the
flue, chambered heads b1, b on the ends of the tube b, and an outer tube 6³ sur-
rounding the tube b and screwed in the inner walls of the heads, leaving a water
space b, between the said inner and outer tubes, which extends to and commu-.
nicates with the chambers in the heads b, 6 as indicated in figures 3, 5 and 8.
.
Beneath the rear ends of the generator flues is a cylinder or T-branch o
communicating with the heads 62 by pipes c¹ the said cylinder being connected by
a pipe c with a sediment pipe d, which is in turn connected with the bottom of
the boiler. by a pipe d¹. The sediment pipe leads downward to a drum or sediment
receptacle which is of sufficient capacity to hold the deleterious precipitates
falling thereinto from the water as it flows from the boiler through the pipe d¹
over the mouth of the sediment pipe.
The spaces around the generator flues are connected at their front ends with the
front of the boiler by pipes e, which preferably turn outwardly away from the
central line of the boiler, as indicated in Figure 3, thereby avoiding all obstruction
to the direct action of the fire on said boiler. Any desired number of said generator
flues may be grouped together and connected to one or more of the pipes e.
The said connections are preferably made by means of Y-branches e³ which
permit the several currents of water from the spaces around different generator
flues to unite and form one current without impeding each other.
The pipes e preferably pass through the fire chamber near its sides or edges and
convey the said currents of water together with the steam, from the spaces around
the generator flues into the front of the boiler, preferably at about the water line,
as indicated in Figure 4.
The pipes e may.communicate with the interior of the heads b¹ at any point,
directly at the bottom, as shown in Figure 5, at the top, as indicated in Figure 8,
or at both top and bottom as in Figure 8, the dotted lines indicating the point of
connection of the second pipe in said Figure.
One advantage resulting from entering the head 61 at the bottom either as
shown in Figure 5, or as indicated by the dotted lines on Figure 8 is that there is
thereby no opportunity afforded for the deposition of the impurities contained in
the water, the only place at which the said deposition can take place being the
sediment pipe d which conveys the impurities into the sediment drum.
By this construction and arrangement of generating apparatus it will be
apparent that the heat and flames from the fire have free and unimpeded access to
the whole of the bottom of the boiler, the generator flues by commencing only at
the bridge wall and extending rearward therefrom, presenting no obstacle to the
action of the fire on the boiler in front of said bridge wall, while affording to the
flames and heated gases in their passage beyond the said bridge wall practically
the same access to the bottom of the boiler as would exist if no generating
apparatus were employed..
It will thus be seen that by this arrangement of the generating apparatus the
boiler itself is enabled to form as much steam as before the generating apparatus
was employed, while the whole of that produced by the said generating apparatus
is so much additional steam which is thereby superadded to that produced by the
boiler.
The pipes d¹, d, are each preferably of about equal diameter, while the sediment
pipe d is preferably made very much larger in diameter, so as to reduce the motion
of the water therein and thereby permit..the impurities to gravitate into the
sediment drum
3

page_text: The arrangement of the generator flues may conform to the curve of the boiler
as shown in Figure 2 or the said flues may be placed in one plane as in Figure 4,
or in any other desired position.
When the generating apparatus is in operation the water passes out of the rear
of the boiler through the pipe d' into the generating apparatus; and from said.
generating apparatus into the front of said boiler through the pipe e, maintaining
thereby a continuous current and constant circulation of the water through the
whole length of the boiler and generating apparatus, separating and removing the
sediment from the said water; preventing the formation of scale within the boiler
and thereby adding to its efficiency and durability, and at the same time largely
increasing the supply of steam and effecting a saving of fuel in its production.
It will be readily understood that the said generator flues and pipes may be
constructed in a variety of ways and forms besides those herein described, I there-
fore do not wish to be understood as limiting myself in any manner to the special
forms of construction and arrangement herein set forth.
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:-
First. The combination with a steam boiler, of two or more generator flues
constructed substantially as described, and a cylinder or branch adapted to receive
the water from the boiler and distribute it to the spaces around said flues,
substantially as set forth.
Second. The combination with a steam boiler, of two or more generator flues
constructed substantially as described, a cylinder or branch adapted to receive the
water from the boiler and distribute it to the spaces around said flues and a supply
pipe adapted to take the water from said boiler and convey it to said cylinder or
branch, substantially as set forth.
Third. The combination with a steam boiler, of a generator.flue constructed
substantially as described and arranged approximately horizontally, and a discharge
pipe adapted to convey the water and steam from the space around said flue into
the forward part of the boiler, substantially as set forth.
Fourth. The combination with a boiler, of two or more generator flues con-
structed substantially as described and arranged approximately horizontally, a
supply pipe adapted to take water from the boiler and convey it to the water
spaces around said flues, and one or more discharge pipes adapted to convey the
water and steam from said spaces into the forward part of the boiler, substantially
as set forth.
Fifth. The combination with a boiler, of two or more generator flues constructed
substantially as described, a cylinder or branch adapted to receive water from the
boiler and distribute it to the spaces around said flues, a supply pipe arranged to
take water from said boiler and convey it to said cylinder or branch, and one or
more discharge pipes adapted to convey the water and steam from said spaces into
said boiler, substantially as set forth.
Sixth. In a steam generating apparatus an assemblage of two or more generator
flues constructed substantially as described with water, spaces around them which
spaces are united to one or more discharge pipes by one or more Y branches,
substantially as, and for the purposes, set forth.
Seventh. The combination with a boiler of two or more generator flues con-
structed substantially as described, a cylinder or branch adapted to receive water
from said boiler and distribute it to the water spaces, around said flues, and one or
more discharge pipes connected with said spaces by Y branches, substantially as,
and for the purposes, set forth.
Eighth. The combination with a boiler, of one or more generator flues constructed
substantially as described, and a sediment drum or receptacle, arranged to separate
and remove the sedimentary matters from said water, said drum or receptacle being

page_text: placed entirely below the point of ingress of the water which supplies the water
spaces around said generator flues, substantially as, and for the purposes, set forth.
Ninth. The combination with a boiler, of one or more generator flues constructed
substantially as described, a sediment drum or receptacle, a sediment pipe adapted
'to convey water and sediment to said drum, and a pipe adapted to convey the
water from said sediment pipe toward the water spaces around said flues, said
sediment pipe being of larger internal diameter than the other said pipe, sub-
stantially as, and for the purposes, set forth.
Tenth. The combination with a boiler, of one or more generator flues constructed
substantially as described, a supply pipe arranged to take water from said boiler
and convey it to the water space or spaces around said flue or flues a discharge
pipe adapted to convey the water and steam from said space or spaces to said
.boiler, and a sediment drum or receptacle arranged to separate and remove the
sedimentary matter from the water, substantially as, and for the purposes, set
forth.