Year: 1888

page_text: 1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to any type of steam generators, and can be constructed in
many different ways, with or without a sediment or mud-drum, by connecting the
front of a boiler with the rear thereof, or one side with the other or the top with the
bottom; and while I show in the drawings a marine boiler of a certain type, it is
very evident that the application can be made at any convenient or suitable point, as
the type or shape of boiler, or other conditions may require.
In the accompanying drawings, in which like letters of reference indicate corre-
sponding parts in each of the several figures, Figure 1 is, or may be taken for a
front or rear elevation of a double ended marine boiler, showing a plurality of
furnaces, and having therein, or therewith connected, the improved attachments or
devices for generating the steam and producing a circulation of water within the water
chamber of the said boiler; Figure 2 is a side elevation of a portion of the same,
showing a point of entry at the side into the water chamber of the boiler; Figure 3 is
a central longitudinal section, taken on line X of Figure 1; Figures 4 and 4° are
detail views in elevation, showing the boiler partly broken away, and showing the
location of certain pipes in the fire chamber; Figures 5 and 5° are horizontal sections,
taken on line Y; Figure 6 indicates, in central section, a sectoral joint, employed in
and are
connection with the generating and circulating pipes, and Figures
respectively, a side view and central vertical section of a swing-valve, employed in
connection with said circulating pipes, within the water chainber of the boiler.
The invention consists in the various and peculiar arrangements and combinations of
parts, substantially as will be hereinafter set forth and finally embodied in the clauses
of the claim.

page_text: In said drawings, A indicates the body of a boiler, which is preferably of what is
known as the Scotch type of boilers, having interior fire-chambers a, a, a, which are
large flues entirely surrounded by a water-chamber a', and having at the inner ends
thereof, in the interior of the said water-chamber, a combustion-chamber a², which
extends upward behind the ends of the flues a³, as indicated in Figure 3. To form
the chambers above referred to, the interior of the boiler is divided by
partitions a, a³, a³, a².
Within the fire-chambers or furnaces a, are arranged generating pipes b, which, in
connection with other similar pipes, produce a circulation of water within the water-
chamber a, and thus prevent the sediment in the water from settling on the crown-
sheets a', over the fire chambers a, where it would produce a non-conducting crust,
and prevent the escape of heat from the crown-sheet, and thus cause the latter to
readily burn out.
The said generating pipe b, may, be in the form of a coil or collection of pipes, as
shown in Figures 4 and 5, in which the said pipes are shown to have two or more
return bends in their length, which would tend to retard the passage of the water in
its course through the fire-chamber, but preferably the said pipes b, b extend straight
through the fire-chamber, as shown in Figures 4 and 5, in which case the water has
a straight course, unimpeded, and certain valuable results, hereinafter set forth, are
thus obtained.
The said generating pipes are arranged in pairs within the fire-chamber, at the
top thereof, and project into the combustion chamber a. When said pipes are in
collections or groups, as in Figures 4 and 5, the same are disposed to form an arch,
and thus greater room is allowed for manipulating the fire, and when said collection of
pipes is employed, their ends may rest upon the angle irons of the front plates c, and
the said pipes may, in either case, project through clearance holes c¹, formed in said
front plates, as indicated in Figure 1.
On the outer side or end of said boiler,. the pipes 6 connect with valved pipes d, by
means of which the passago of water through said pipes b may be stopped instantly, in
case of accident.
The said pipes d supply the generating pipes in the fire-chamber with water,
taking the same from any suitable point in the boiler.
The ends of the pair of generating pipes of the fire-chamber, project into the
combustion chamber a², where they are united by a sectoral joint e, and discharge into
a common stand-pipe f, which may be, and in some cases is of greater internal
diametric area than either of the pipes b.
Said stand-pipe rises through the combustion chamber a³, and discharges into the
water chamber a¹, the pipe passing through the rear plate a', which separates the
combustion chamber from the water chamber.
To allow of the insertion of said stand-pipe, one of the tubes or flue-pipes a³ may
be removed from the boiler.
To allow the secure and effective passage of the stand-pipe through the said
partition a, the said stand-pipe is coupled to or has thereon a forward extension f¹
which passes through the partition a³, as described, and in the water-chamber is
provided with a valve J.
The result, in operation, of this arrangement is, that the water in the pipes b, being
directly over the fire, is caused to generate into steam with great rapidity, and travelling
in the direction of the least resistance, passes into the common stand-pipe, where its
speed is accelerated, because of the union of the waters of the two pipes into one body;
and thus it passes into the boiler at a high rate of speed, thus in the boiler, the water
is kept in motion, and the crown sheets of the fire chambers are kept clear of
sediment.
As the water leaves the generating pipes, the weight of the water in the boiler
causes it to flow into said pipes, to take the place of that forced forward by the force
of the steam, and thus the circulation of the water is made continuous.
In the event that a sediment drum or receptacle W is employed, I may employ
suitable pipes by means of which the water is caused to pass over a branch leading to

page_text: said drum, and the sediment be caused to gravitate into said drum, from which it may
be removed in any ordinary manner.
When the flow of water through the pipes stopped, by valves, as described, or
other means, the valves in the inner end of said pipes act automatically, to close
the inner ends of said pipes, so that no water may flow outward should any break
occur. Thus in case of break or fault by closing the outside valve, the inside valve is
closed automatically, and the boiler is left intact, and safety against accident is thus
insured.
The automatic valve, shown in Figures 7 and 8, consists of a head j', which screws
or is otherwise secured on the end of the forward extension f¹, just within the water
chamber a
At its inner extremity, the said head is provided with an inclined seat 2, Figure 8,
adapted to receive the valve j³, and form an impervious joint therewith.
I prefer to form a hinge-arm on the head j', and secure on the valve a corre-
sponding arm; said arm being bolted to the said valve, the valve being allowed
free play on the arm, so that it may readily adapt itself to the incline of the seat, and
make the desired joint.
To prevent the valve opening past a point approximately in line with the pipe or
extension, I prefer to extend the arm backward, so that it will engage a stop or
bearing cast on the head j¹, so that said valve is limited in its opening movement,
and so when pressure is cut off, it will drop automatically into engagement, and close
the exit of steam or water from the boiler.
It is often desirable and necessary in boilers, to make repairs to the crown-sheets,
rivets or bolts, calking, etc., and in order that the generating pipes may be quickly
and easily removed, I have used the following simple construction. At the upper end
of the stand-pipe, I have provided a union joint ³, and at the forward part of the
boiler, where the generating pipes of the fire-box connect with the outer supply pipes,
I have provided another union joint. By loosening these joints, I may remove the
said generating pipes as a whole, which, when the repairs are made, may be again
slipped into place, the work being thus accomplished without breaking a single inter-
mediate connection.
It will be observed that I employ a stand-pipe for each pair of generating pipes, and
thus a number of streams of water are kept pouring into the boiler at different points
therein, at one time, and by this means, the water in the boiler is more perfectly kept
in motion and the crown sheets kept free of incrustation.
The mud-drum or sediment receptacle W, is of peculiar construction, the same being
provided with an inclined bottom, and oval or egg-shaped in end view, as indicated in
Figure 2, so that the sediment may be gathered into position opposite the blow-off
cock, and thus be more perfectly removed through said blow-off cock, situated at one
end of the drum, as indicated in Figure 1.
It will be noticed that by the arrangement of pipes b, f, f', described, that the crown
sheets of the fire-chambers are not perforated to allow the passage of pipes
therethrough, nor are they otherwise disturbed or weakened or damaged by the
generating pipes, a feature of great practical importance.
Dated this 24th day of August 1200
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co., Patent Agents,
45, Southampton Buildings in the County of Middlesex 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 any type of steam generators, and can be constructed in
many different ways, with, or without a sediment or mud-drum, by connecting the
front of a boiler with the rear thereof, or one side with the other, or the top with the
bottom and while I show in the drawings a marine boiler of a certain type it is very
evident that the application can be made at any convenient or suitable point, as the
type or shape of hoiler, or other conditions may require.
;
In the drawing, left with the provisional specification in which like letters of
reference indicate corresponding parts in each of the several figures, Figure 1 is, or
may be taken for a front or rear elevation of a double ended marine boiler, showing a
plurality of furnaces, and having therein, or therewith connected, the improved
attachments or devices for generating the steam and producing a circulation of water
within the water chamber of the said boiler; Figure 2 is a side elevation of a portion
of the same, showing a point of entry at the side into the water chamber of the boiler
Figure is a central longitudinal section, taken on line X of Figure 1; Figures 4
and 4 are detail views in elevation, showing the boiler partly broken away, and
showing the location of certain pipes in the fire chamber; Figures 5 and 5ª are
horizontal sections, taken on line Y; Figure 6 indicates, in central section, a sectoral
joint, employed in connection with the generating and circulating pipes, and Figures 7
and 8 are respectively, a side view and central vertical section of a swing-valve,
employed in connection with said circulating pipes, within the water chamber of the
boiler.
The invention consists in the various and peculiar arrangements and combinations
of parts, substantially as will be hereinafter set forth and finally embodied in the
clauses of the claim.
In said drawings, A indicates the body of a boiler, which is preferably of what is
known as the Scotch type of boilers, having interior fire-chambers a, a, a, which are
large flues entirely surrounded by a water-chamber a³, and having at the inner ends
thereof, in the interior of the said water-chamber, a combustion-chamber a², which
extends upward behind the ends of the flues a³, as indicated in Figure 3. To form
the chambers above referred to, the interior of the boiler is divided by partitions a*,
a², a³, a².
Within the fire-chambers or furnaces a, are arranged generating pipes b, which, in
connection with co-operating pipes, produce a circulation of water within the water-
chamber a, and thus prevent the sediment in the water from settling on the
crown-sheets a', over the fire chambers a, where it would produce a non-conducting

page_text: crust, and prevent the escape of heat from the crown-sheet, and thus cause the latter
to readily burn out.
The said generating pipe 6, may be in the form of a coil or collection of pipes, as
shown in Figures 4 and 5, in which the said pipes are shown to have two or more
return bends in their length, which would tend to retard the passage of the water
in its course through the fire-chamber, but preferably the said pipes b, b extend
straight through the fire-chamber, as shown in Figures 4 and 5, in which case the
water has a straight course, unimpeded, and certain valuable results, hereinafter set
forth, are thus obtained.
The said generating pipes are arranged in pairs within the fire-chamber, at the
top thereof, and project into the combustion chamber a². When said pipes are in
collections or groups, as in Figures 4 and 5, the same are disposed to form an arch,
and thus greater room is allowed for manipulating the fire, and when said collection
of pipes is employed, their ends may rest upon the angle irons of the front plates c
and the said pipes may, in either case, project through clearance holes c¹, formed
in said front plates, as indicated in Figure 1.
On the outer side or end of said boiler, the pipes connect with valved pipes d
by means of which the passage of water through said pipes may be stopped
instantly, in case of accident.
The said pipes & supply the generating pipes in the fire-chamber with water, taking
the same from any suitable point in the boiler.
The ends of the pair of generating pipes of the fire-chamber, project into the
combustion chamber a², where they are united by a sectoral joint e, and discharge into
a common stand-pipe f, which may be, and in some cases is of greater internal
diametric area than either of the pipes b.
Said stand-pipe rises through the combustion chamber a², and discharges into the
water chamber a', the pipe passing through the rear plate a³, which separates the
combustion chamber from the water chamber.
To allow of the insertion of said stand-pipe, one of the tubes or flue pipes a³ may be
removed from the boiler.
1
To allow the secure and effective passage of the stand-pipe through the said
partition a, the said stand-pipe is coupled to or has thereon a forward extension f¹
which passes through the partition aº, as described, and in the water chamber is
provided with a valve J.
The result, in operation, of this arrangement is, that the water in the pipes b, being
directly over the fire, is caused to generate into steam with great rapidity, and
traveling in the direction of the least resistance, passes into the common stand-pipe,
where its speed is accelerated, because of the union of the waters of the two pipes
into one body, and thus it passes into the boiler at a high rate of speed, thus in
the boiler, the water is kept in motion, and the crown sheets of the fire chambers
are kept clear of sediment.
As the water leaves the generating pipes, the weight of the water in the boiler
causes it to flow into said pipes, to take the place of that forced forward by the
force of the steam, and thus the circulation of the water is made continuous.
In the event that a sediment drum or receptacle W is employed, I may employ
suitable pipes by means of which the water is caused to pass over a branch leading to
said drum, and the sediment be caused to gravitate into said drum, from which it may
be removed in any ordinary manner.
When the flow of water through the pipes is stopped, by valves, as described, or
other means, the valves in the inner end of said pipes act automatically, to close the
inner euds of said pipes, so that no water may flow outward should any break occur.
Thus in case of break or fault by closing the outside valve, the inside valve is closed
automatically, and the boiler is left intact, and safety against accident is thus
insured.
The automatic valve, shown in Figures 7 and 8, consists of a head, which
screws or is otherwise secured on the end of the forward extension f¹, just within
the water chamber a¹.

page_text: At its inner extremity, the said head is provided with an inclined seat,
Figure S, adapted to receive the valve j³, and form an impervious joint therewith.
I prefer to form a hinge-arm on the head j¹, and secure on the valve a corresponding
arm; said arm being bolted to the said valve, the vaive being allowed free play
on the arm, so that it may readily adapt itself to the incline of the seat, and make the
desired joint.
To prevent the valve opening past a point approximately in line with the pipe
or extension 1,1 prefer to extend the arm backward, so that it will engage a stop
or bearing, cast on the head j¹, so that said valve is limited in its opening movement,
and so when pressure is cut off, it will drop automatically into engagement, and close
the exit of steam or water from the boiler.
It is often desirable and necessary in boilers, to make repairs to the crown-
sheets, rivets or bolts, calking, etc., and in order that the generating pipes may
be quickly and easily removed, I have used the following simple construction.
At the upper end of the stand-pipe, I have provided a union joint f³, and at the
forward part of the boiler, where the generating pipes of the fire-box connect with
the outer supply pipes, I have provided another union joint. By loosening these
joints, I may remove the said generating pipes as a whole, which, when the repairs are
made, may be again slipped into place, the work being thus accomplished without
breaking a single intermediate connection.
It will be observed that I employ a stand-pipe for each pair of generating
pipes, and thus a number of streams of water are kept pouring into the boiler
at different points therein, at one time, and by this means, the water in the
boiler is more perfectly kept in motion and the crown sheets kept free of
incrustation.
The mud-drum or sediment receptacle W, is of peculiar construction, the same being
provided with an inclined bottom, and oval or egg-shaped in end view, as indicated in
Figure 2, so that the sediment may be gathered into position opposite the blow-off
cock, and thus be more perfectly removed through said blow-off cock, situated at one
end of the drum, as indicated in Figure 1.
It will be noticed that by the arrangement of pipes b, f, f¹, described, that the
crown sheets of the fire chambers are not perforated to allow the passage of pipes
therethrough, nor are they otherwise disturbed or weakened or damaged by the
generating pipes, a feature of great practical importance.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondent I declare that what I claim is :-
1. The improved steam-generators herein described, combining with a boiler A,
having a series of fire-chambers formed therein, connecting with a combustion
chamber at the rear thereof, of pipes b, extending longitudinally through said
fire-chambers, and uniting with common-stand pipes, which latter extend upward
through the combustion chamber and enter the boiler through the vertical partition a³,
which separates the water-chamber from the combusion chamber, substantially as
set forth.
2. The improved steam generator, combining therein a boiler having a fire and com-
bustion chambers, arranged as described, pipes b, extending horizontally through said
fire-chambers, and connecting with stand-pipes f, and suitable feed-pipes arranged and
operating, substantially as described.
3. The improved steam generator, having the several generating pipes connected with
the boiler and with one another, in the peculiar manner described, substantially as and
for the purposes set forth.
4. In combination with a boiler, having therein fire-chambers as a, a combustion
chamber and a water-chamber partitioned off, substantially as described, of generating
pipes arranged in said fire-chainbers, and extending into the combustion chambers,
valved supply pipes connecting said generating pipes with the water-chamber of the
يا

page_text: boiler, and stand-pipes extending upward through the combustion chamber, and having
a forward extension provided at its extremity, within the boiler, with an automatic
valve, substantially as set forth.
5. The combination with the body of a boiler, having a fire-chamber and a com-
bustion chamber, such as described, of generating pipes arranged within the fire-
chamber, connecting with a common stand pipe and a supply pipe, all arranged and
operating, substantially as set forth.
Date this DELL L
Orishan 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.