Year: 1885

page_text: I ALEXANDRE LENCAUCHEZ of Paris in the Republic of France do hereby declare
the nature of this Invention to be as follows:-
This Invention relates to an improved means and apparatus for supplying steam
boilers with heated water and is more particularly applicable to the boilers of
locomotive and portable engines but may evidently be employed for supplying
heated feed water to steam generators generally-The said Invention presents the
advantages of effecting a considerable saving of fuel greatly reducing the quantity
of water consumed per hour and of purifying the feed water.
These results are obtained partly by utilizing the exhaust steam to heat the feed
water by direct contact therewith and partly by causing the whole of the steam
condensed in heating the feed water as well as the steam from the steam jackets of
the cylinders when such are employed to return to the boiler. The feed water is
thus heated to a high temperature and the impurities are deposited in the heating
apparatus whence they may be readily removed when required.
Either pumps or injectors may be employed to produce the circulation and force
the feed water into the boiler. In the former case cold water is drawn by a cold
water pump from the tender or supply cistern and is forced by this pump into a
special heater constructed as hereinafter described Here the water is heated by
direct contact with the steam which before entering the heater passes through a
purifying apparatus also hereinafter described in which it is separated from the
grease held in suspension which is drawn off through a suitable pipe and discharged
into the ash pit. In the aforesaid heater the steam mingles with the cold water
and becoming condensed imparts its latent heat to the feed water whose temperature
is raised to say near one hundred degrees centigrade.-The heated water thus
obtained is drawn from the heater by a hot water pump which forces it into the
boiler. A third pump connected with the steam jackets of the cylinders may be.

page_text: employed to draw the water of condensation from the jackets and force it into the
boiler The two last mentioned pumps are coupled together by a special arrange-
ment hereinafter described having for its object preventing any cessation of motion
of the column of liquid in the pipes leading to the boiler. The delivery pipes from
the pumps supply the water to the boiler through an apparatus containing a nozzle
in the form of an injector and in order to prevent the stream of feed water injected
into the boiler from impinging against and formning incrustations on the boiler
tubes a screen is placed in front of the inlet orifice and deflects the stream
of feed water away from the tubes thus effectually protecting the latter from
incrustation.
When injectors are employed in place of pumps the heater hereinbefore referred
The exhaust steam
to is dispensed with but the general action remains the same.
after being separated from the grease in a purifier constructed as hereinafter
described passes to an injector in which it draws cold water from the tender or
other reservoir. On coming in contact with the cold water in the injector the
steam is condensed and the temperature of the water is raised and at the same
time the heated mixture is forced into the boiler. In case the exhaust steam does
not possess sufficient latent energy to do this double duty of heating the water and
forcing it into the boiler, live steam from the boiler may be employed to assist the
action of the exhaust steam and the continued action of the apparatus during
stoppages may also be provided for by means of a supply of live steam to the same
injector. A second steam injector is or may be connected by a branch pipe with
the delivery pipe of the first injector and receives water or steam and water from
the steam jackets of the cylinders which it forces into the boiler and provides for
a continuous discharge from the said steam jackets.
The feed water heater herein before referred to is preferably placed upon the
boiler and externally resembles an ordinary steam dome. The grease separater
or purifier is preferably arranged at the side of the heater-The said grease
separater or steam purifier is composed of a cylindrical vessel or chamber down
the centre of which the exhaust pipe extends nearly to the bottom, the extremity
of this pipe being slightly contracted and the edges notched or serrated for
the purpose of breaking up the entering fluid and collecting the drops or globules
of greasy water in order to facilitate their precipitation to the bottom of the
chamber or vessel-At the lower part of the chamber and surrounding the
extremity of the exhaust pipe there are arranged several circular and concentric
rows of bars or plates of semicylindrical or undulated form constituting vertical
gutters and maintained at a suitable distance apart to allow for the steam passing
between them. The open spaces between these plates are so arranged that they do
not correspond but are placed alternately with one another so as to form baffles
against which the steam impinges with violence and becomes thereby separated from
the greasy matter.
The upper ends of these baffle plates are supported by an annular plate or ring
bent at its edges to prevent the passage of the grease and the lower ends or nozzles
of the said plates pass through holes in a plate or partition the centre of which
presents a hollow or funnel perforated with a hole of suitable size. The grease and
impurities separated from the steam in this apparatus may be carried away by a
suitable pipe and discharged into the ash pit of the furnace where they extinguish
the clinkers and prevent the bars from being unduly heated An opening is
also provided for the purpose of cleaning out the bottom of the chamber when
required.
After passing through the grease separator or purifier the steam is conducted to
the heater herein before referred to and in order to prevent the cold water supplied
to the heater from being accidentally forced into the pipe leading from the separator
which might occur in case the hot water pump failed to act properly for example,
a valve is employed which allows the steam to pass freely to the heater but pre-
vents any water from passing from the heater into the separator and thus getting
into the exhaust pipes.

page_text: The said heater is made with a cylindrical or slightly tapering case containing a
concentric cylinder constituted by a series of superposed rings provided with
annular basins arranged alternately with central basins. The basins have serrated
edges in order to divide or break up the stream of water which overflows the
inner edges of the annular basins into the central basins and overflows the outer
edges of the central basins into the annular basins alternately. The rings are
connected by simply placing them one upon the other the edges or flanges being
guided and retained by vertical rods and absolute freedom of expansion is thus
secured. Cold water is supplied to the heater by a pipe ascending the centre and
containing a pendant concentric tube terminating in a species of ejector nozzle
through which the water is delivered in a jet at the upper part of the heater. The
annular space between the cold water pipe and the said pendant tube forms an air
chamber or cushion which prevents straining of the pipes.
The water issuing from the aforesaid nozzle impinges against a concave plate
attached to the cover of the heater which scatters it in all directions in the form of
spray and the water then flows through all the basins in succession to the bottom
of the heater. The steam supplied from the purifier as herein before described fills
the space between the sides of the outer case of the heater and the cylinder
formed by the rings carrying the basins. Holes are provided in the rings above
the level of the edges of the basins and the steam passing through these holes
comes in direct contact with and heats the water gradually becoming condensed at
the same time. The heated water and condensed steam are collected in a suitable
chamber at the lower part of the heater whence they are drawn off by the hot
water pump as hereinbefore described.
To provide against the excessive pressure which would be liable to burst the
heater if it were accidentally filled with water from the cold water pump; the
chamber of the heater is provided with a safety valve also presenting an outlet for
the escape of air. The seat of this safety valve may be formed in one piece with
the concave plate employed to disperse the water in the form of spray. A loaded
valve opening outwards and contained in a suitable case is fitted to the aforesaid
seat and shuts off the interior of the heater from the atmosphere. This valve is
perforated by a hole for the escape of air a small valve opening outwards being
arranged over this aperture to prevent air from entering the heater. If from any
cause an excess of pressure be present in the heater there will first be a leakage
through the small air passage and if this excess of pressure be further increased
the safety valve will be forced from its seat and provide a passage for a larger
stream of water.
The cold water pump herein before referred to drawing water from the tender or
other reservoir is provided with a suction box containing a pendant central tube
the space around which constitutes an annular air chamber. This pump is further
provided with hollow suction and delivery valves and works as an ordinary single
acting pump.
The hot water pump is coupled with the pump drawing water of condensation
from the jackets when steam jackets are employed to heat the engine cylinders-
These pumps are provided with pistons or plungers arranged on the same axis and
with hollow guided suction and delivery valves.-The suction boxes are provided
with annular air chambers and the delivery pipes communicate with a pressure
regulator hereinafter described.
These two coupled pumps are single acting pumps but are caused to deliver
an unintermittent stream by means of the said pressure regulator-When the
apparatus is working the delivery pipes are full of liquid and whilst the piston or
plunger in the one pump is forcing out water into the delivery pipe the piston
or plunger in the other pump is drawing in water and vice versa -The water
forced into the delivery pipe of each pump displaces a loose regulator piston in a
cylinder connecting the two delivery pipes and moves this piston in opposite
directions alternately and thereby maintains the continuity of the flow of liquid.

page_text: When injectors are employed to supply boilers with feed water heated by the
projectors themselves the main injector preferably arranged at the rear of the
engine and worked by exhaust steam forces water into a a tube connected with a
pipe communicating with an injector exhausting from the jackets of the cylinders
and worked by an independent supply of steam which promotes the circulation
and assists in raising the temperature of the feed water before it enters the boiler.
Deted this 19th day of Danamber 1885
I, ALEXANDRE LENCAUCHEZ of Paris in the Republic of France 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:
My Invention relates to an improved means and apparatus for supplying steam
boilers with heated water and is more particularly applicable to the boilers of
locomotive and portable engines but may evidently be employed for supplying
heated feed water to steam generators generally. The said Invention presents the
advantages of effecting a considerable saving of fuel greatly reducing the quantity
of water consumed per hour and of purifying the feed water.
These results are obtained partly by utilising the exhaust steam to heat the feed
water by direct contact therewith and partly by causing the whole of the steam
condensed in heating the feed water as well as the steam from the steam jackets
of the cylinders when such are employed to return to the boiler The feed water
is thus heated to a high temperature and the impurities are retained deposited in
the apparatus whence they may be readily removed when required.
And in order that my said Invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheets of drawings the same letters of reference
indicating corresponding parts in all the corresponding figures.
Figure 1 of the accompanying drawings illustrate the general arrangement of
apparatus employed according to my Invention for supplying a locomotive boiler

page_text: for example with heated feed water by means of pumps and Figure 2 is a similar
view wherein injectors are employed in lien of pumps.
Figure 3 represents a vertical section of the heater.
Figure 4 represents an elevation partly in section and a horizontal section of the
heater and the steam purifier or apparatus for separating the grease.
Figure 5 represents the grease separator in vertical and horizontal section drawn
to a larger scale.
Figures 6 and 7 illustrate details of the heater hereinafter explained.
Figures 8 and 9 represent respectively sections taken at right angles to each
other of the cold water pump.
Figures 10 and 11 represent respectively a transverse and longitudinal section of
an arrangement of coupled pumps for the hot water and for the water of conden-
sation from the jackets of the cylinders.
Figure 12 is a horizontal section of an injector employed for drawing off the
water of condensation from the jackets of the cylinders.
Figure 13 is a vertical section of the nozzle of the valve box protecting the
boiler tubes from incrustation at the part where the feed water enters the boiler.
In the two general views figures 1 and 2 the same letters of reference are
employed to indicate the same or corresponding parts. Referring to Figure 1 a is
a suction pipe connecting the tender with a cold water pump b delivering water
through a delivery pipe c to the heater d. e is the suction pipe of a hot water
pumpf connected with a delivery pipe 9-An apparatus h herein after described
controls the action of the hot water pump and of the pump drawing water from
the cylinder jackets Exhaust steam from the engine and break is supplied to a
grease separater k through pipes i and a junction piece j and the water of conden-
sation is discharged from the separater through a pipe 2 leading to the ash pit The
water of condensation escapes from the steam jackets of the engine cylinders v
through a pipen and a junction piece o connecting the said pipe n with a suction
pipe pleading to a pump q This pump drawing the water of condensation from
the steam jackets is connected by a junction piece r with a vessel or chamber 8
receiving water from the said pump and communicating with a delivery pipe t―
The hot water pump f and the pump 9 for the water from the jackets communicate
with an injector and delivery valve box u The ash pit of the furnace is
indicated at y and is supplied with air through an adjustable valve or damper
operated by levers and connecting rods a¹ The hot water pump is provided with
a trial and priming valve b¹.
In the arrangement working with pumps as illustrated in figure 1 the action is
as follows Cold water is drawn by the pump 6 from the tender which is
connected with this pump by the pipe a This cold water is forced by the pump b
through the tube c into the heater d where it is heated by direct contact with
exhaust steam supplied from the valve chests of the cylinders by two pipes
arranged symmetrically on each side of the boiler, this steam before entering the
heater & passes through a purifying apparatus k in which it is separated from the
grease held in suspension the grease being discharged through the pipe into
the ash pit-In the heater & the steam mingles with the cold water and becoming
condensed imparts its latent heat to the feed water the temperature of which is
raised to say near one hundred degrees centigrade.
The beated water obtained by the mixture of the cold water with the steam is
drawn through the pipe e by the hot water pump f and forced into the boiler
through the pipe g The pump q is connected with the steam jackets of the
cylinders v. v by the pipe p connected by the junction piece o with two branch
pipes connected with the said jackets This pump q delivers the water of
condensation from the jackets into the boiler through the pipe t.
The pumps and q are coupled together by a special arrangement having for its
object preventing any cessation of motion of the column of liquid in the pipes g
and t as hereinafter explained.

page_text: In the arrangement illustrated in figure 2 a is the suction or supply pipe from
the tender and e is a pipe leading from the grease separater / to a feed water
injector f worked by exhaust steam and taking the place of the hot water pump f
and heater d in figure 1. g is a hot water delivery pipe supplying the boiler
through an exhausting injector q and i is a pipe leading the exhaust steam to the
grease separater through a junction piece ; connecting the exhaust pipe with the
grease separater k from which the water of condensation is discharged through a
pipe L.
"The water of condensation from the steam jackets of the cylinders v passes
through a pipe to an injector q corresponding to the pump q Figure 1 This
injector is connected with a delivery pipe t communicating with the pipe g and
with an injector and delivery valve box u on the side of the boiler.
y is a pipe supplying live steam during stoppages and is a pipe supplying live
steam from the boiler to the injector f to assist the action of the exhaust steam and
ensure the proper supply of feed water to the boiler.
When injectors are employed in place of pumps as in the arrangement illus-
trated in figure 2 the action of the apparatus is substantially the same as when
pumps are employed The exhaust steam after being separated from the grease in
a purifier k passes through the pipe e to the injector f in which it draws cold water
from the tender through the suction pipe a
is
On coming in contact with the cold water the steam is condensed and the tem-
perature of the water is raised and the heated mixture is delivered or forced into
the boiler through the pipe g the steam thus caused to perform both physical and
mechanical functions raising the temperature of the water on the one hand and
forcing it from the tender into the boiler on the other-In case the exhaust steam
does not possess sufficient latent energy to do this double duty the pipe
employed to lead live steam from the boiler for the purpose of assisting the action
of the exhaust steam in the injector and insuring that the feed water shall be
properly forced into the boiler-The pipe y insures the continued action of the
apparatus during stoppages by providing the injector with live steam when the
supply of exhaust steam is stopped. The injector q is connected by a branch pipe
with the pipe g and receives steam and water from the steam jackets of the
cylinders which it forces into the boiler and provides for a continuous discharge
from the said steam jackets.
Having this indicated the general method or system of feeding or supplying
steam generators with heated water according to my invention by means of pumps
and injectors-I will now describe separately and in detail the various apparatus
employed in carrying out the same.
The feed water heater & Figure 1 is placed upon the boiler and externally
resembles an ordinary steam dome--The grease separater or purifier k is arranged
at the side of the heater-This beater and the separater are represented drawn to a
larger scale in detail in Figures 3. 4 and 5 The separater is composed of a
cylindrical vessel or chamber A Figures 4 and 5 down the centre of which the
exhaust pipe C Figure 5 extends nearly to the bottom the extremity of this pipe
being slightly contracted and the edges notched or serrated for the purpose of
breaking up the entering body of fluid and collecting the drops or globules of
greasy water in order to facilitate their precipitation to the bottom of the
separating chamber or vessel A-At the lower part of the chamber A there aro
arranged several circular and concentric rows of bars or plates B of semi-cylindrical
or undulated form constituting vertical gutters and being maintained at a suitable
distance apart to allow for the steam passing between them The open spaces
between these plates are so arranged that they do not correspond but are placed
alternately with one another so as to form baffles against which the steam impinges
with violence and becomes thereby separated from the greasy matter which is
deposited in the bottom of the vessel A-The upper ends of the plates B are
supported by an annular plate or ring D bent at the edge to prevent the passage
of the grease and the lower ends or nozzles of the plates pass through holes in &

page_text: plate or partition D₁-The plate D is perforated and the centre presents a hollow
or funnel perforated with a hole of suitable size-The grease and impurities
separated from the steam in this apparatus are drawn off through the pipe and
discharged into the ash pit of the furnace where they extinguish the clinkers and
prevent the bars from being unduly heated An opening is provided for the
purpose of cleaning out the bottom of the chamber A when required-The purified
steam from the separater passes through a pipe E into the heater Figures 3 and 4-
In order to prevent the cold water supplied to the heater from being accidentally
forced back through this pipe into the separater which might occur in case the hot
water pump failed to act properly for example the extremity of the said pipe E
communicating with the heater is provided with a valve F as indicated in
Figures 4 and 5.
This valve allows the steam to pass freely into the heater but prevents any
water from returning from the heater into the separater and thus getting into the
exhaust pipes.
The heater is made with a cylindrical or slightly tapering case G. Inside this
case and concentric therewith is a cylinder constituted by a series of superposed
rings H provided with arms carrying two different forms of basins I and J arranged
alternately The basins I are of annular form being arranged around the inner side
of the casing and the basins J are arranged centrally under the openings in the
centres of the basins I.
The edges of all these basins are serrated in order to divide or break up the
stream of water which flows through all basins in succession. The rings H are
connected by simply placing them one upon the other their edges or flanges being
guided and retained in position by vertical rods K absolute freedom for expansion
being thus provided. Cold water is supplied to the heater by a central pipe L
within which is a concentric pipe M terminating in a species of ejector nozzle
shown detached drawn to a larger scale in figure 6 through which the water is
delivered in a jet at the upper part of the heater. The annular space between
the pipes M an L forms an air chamber or cushion which prevents straining of
the pipes.
The water issuing from the pipe M impinges against a concave plate N which
scatters it in all directions in the form of spray and it then flows through all the
basins I and J in succession to the bottom of the heater.
The steam supplied through the pipe E fills the space between the sides of the
case G and the cylinder formed by the rings H. Holes P are provided in the rings
above the basins and the steam passing through these holes comes in direct contact
with and gradually heats the water descending through the heater the steam being
at the same time condensed as it ascends.
The heated water collects at the bottom of the heater in a chamber O whence it
is drawn by the hot water pump through the pipe e as hereinbefore described with
reference to figure 1.
To provide against the excessive pressure which would be liable to burst the
heater if it were accidentally filled with water from the cold water pump the
heater G is provided with a safety valve in a case S presenting an outlet for
the escape of air.
This safety valve drawn to a larger scale in figure 7 rests upon a seat formed in
one with the concave plate N which disperses the water in the form of spray.
This seat is enclosed in the case S communicating with the atmosphere on the
one hand through holes g and with the interior of the heater on the other hand
through its base. A valve R held down on its seat by a spring shuts off the
interior of the heater from the atmosphere. This valve is perforated by a hole T
for the escape of air a small ebonite ball valve U being arranged over this aperture
to prevent air from entering the heater. If from any cause an excess of pressure
be present in the heater there will be a leakage through the passage T and if this
excess of pressure be further increased the valve R will be forced from its seat and
provide a passage for a larger stream of water.

page_text: I have already stated that either pumps or injectors may be employed in this
system of supplying heated water I will now describe those parts which are of
special construction as herein after explained. The cold water pump figures 8
and 9 is arranged as follows:-The suction box a is provided with a pendant
central tube a¹ figure 9 forming an annular air chamber and communicating with
a hollow suction valve b working in guides-c is the body or barrel of the pump
and d is the plunger or piston The delivery valve e is similar to the suction valve,
and F is the delivery pipe (marked c in the general view figure 1). The action of
this pump will be readily understood by referring to the drawings I will now
'describe with reference to figures 10 and 11 the construction and action of the hot
water pump J which is coupled with a pump J' drawing off the water of condensation
from the steam jackets of the cylinders.
This hot water pump is provided with a suction box g forming an air chamber
and two hollow guided suction valves h communicating with the barrel i in which
works a plunger or piston J' common to the hot water pump J and to the pump J¹
drawing off the water of condensation from the steam jackets-The pump J is
provided with a hollow guided delivery valve k figure 10 in a chamber commu-
nicating with a pressure regulator m hereinafter described-This regulator is
provided with a loose regulating piston n communicating with a hot water
delivery pipe o leading to the boiler. The pump J¹ drawing water of condensa-
tion from the jackets is provided with a suction box p having an annular air
chamber and hollow guided suction and delivery valves 9 and 8 communicating
with the pump barrel r which is connected by a junction piece t with a delivery
chamber and delivery pipe v leading to the boiler-The pump is provided with
an orifice for applying a trial and priming valve.
These two coupled pumps are single acting pumps but deliver an unintermittent
stream with great regularity owing to the action of the pressure regulator m.
When the apparatus is working the delivery pipes are full of liquid and whilst
the piston or plunger in the pump J for example moves towards the left forcing
water into the pipe o from the hot water pump, the piston or plunger in the
pump Jis drawing in water of condensation--The water in the passage or
chamber displaces the loose regulator piston n in the cylinder m-The result is
that this regulating piston n by compressing the liquid on the other side maintains
the continuity of the flow in the pipe v. On the other hand when the piston or
plunger J moves to the right it compresses in the pump J¹ the water of conden-
sation and exhausts from the bot water pump J. The regulator piston n being
then acted on by the liquid in the chamber u, is moved towards the left and thus
prevents any interruption in the flow of liquid in the delivery pipe o, from the hot
water pump J.
When injectors are employed to supply locomotive boilers, the injectors themselves
act as heaters for the feed water,
The injector preferably arranged at the rear of the engine and worked by
exhaust steam being marked with the letter f, in figure 2 is so arranged that the
exhaust steam serves to heat as well as to propel the column of liquid proceeding
from the tender through the pipe a, and supplied to the boiler through the pipe g,
figure 2. The tube g, is connected with a pipe g¹, shewn in the detail, figure 12,
communicating with an injector q, connected with the jackets of the cylinders.
The steam for working this injector is supplied by a tube connected with the
injector at q This fresh supply of steam promotes the circulation of the water in
the pipes g, and 't, and assists in raising the temperature of the feed water before it
enters the boiler.
When pumps are used for feeding the boiler, the water enters the boiler through
an injection apparatus u, figure 1, containing a nozzle in the form of an injector as
indicated in figure 13. The feed water is liable to form deposits or incrustations
on the boiler tubes as it enters the boiler. In order to prevent tbis, a screen u¹ is
placed in front of the inlet orifice of the injector u, which screen deflects the
stream of feed water against the sides of the boiler and thus effectually protects

page_text: the tubes from incrustation. A similar screen is employed in feeding with
injectors.
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 improved system of feeding or supplying locomotive portable and
other steam generators with heated water by means of a combination of apparatus
substantially as herein before described.
Second. Supplying steam generators with heated water obtained by utilising
exhaust steam purified in a grease separator and steam from the cylinder jackets,
the steam from both these sources being mixed or brought in direct contact with
the feed water whereby the steam is condensed and the water is enabled to take
up the heat of evaporation and the heat due to the difference between the tempe-
rature of the steam and that of the feed water at the moment when it enters the
water substantially as hereinbefore described.
Third. The general arrangement and combination of apparatus for supplying
steam generators with heated water by means of pumps and wherein a heater d,
placed upon the boiler is connected with a grease separater k, receiving exhaust
steam from pipes i, and delivering it free from impurities to the said heater to
which cold water from the tender or other reservoir is also supplied by a pipe a,
and a cold water pump b, the said water afterwards proceeding along with the
condensed steam through the suction pipe e, to the hot water pump f, which
delivers it through the pipe g, to the boiler, this pump f, being employed with or
without the pump q drawing condensed steam or water from the jackets of the
cylinders through the pipes p, and delivering the same into the boiler through the
delivery pipe t, all substantially as herein before described with reference to Figure 1
of the accompanying Drawings.
Fourth. The general arrangement and combination of apparatus for supplying
steam generators with heated water by means of injectors and cousisting in the
combination of an injector f figure 2, worked by exhaust steam purified by a grease
separater k, placed upon the boiler and supplied by a pipe connected with the
delivery pipe g, with or without an injector q, supplied with steam from the steam
jackets of the cylinders, all substantially as herein before described with reference
to figure 2 of the accompanying Drawings.
Fifth. The grease separater for purifying the steam and formed by a cylindrical
chamber A in the centre of which the exhaust pipe descends, the lower extremity
or edges of this pipe being serrated and surrounded by concave plates or gutters B,
arranged concentrically and alternately and attached to a plate D, bent or turned
down at the edge and to a plate or lower diaphragm D' through which the nozzles
or extremities of the gutters project, all substantially as herein before described with
reference to figures 4 and 5 of the accompanying Drawings.
Sixth. The feed water heater formed by a cylindrical or taper chamber G,
containing superposed rings H, supported so as to be free to expand by rods K,
and provided with plates forming annular basins I and J, arranged in such a
manner as to allow the water to overflow from one basin to the other, the edges of
these basins being notched or serrated in order to divide the streams of water over-
flowing the same and heated by steam admitted by orifices P, to the interior of the
rings, the said heater being supplied with cold water through a central tube L,
forming an air chamber and being provided at its upper part with safety-valves
R, V, made in one piece with a cold water distributor or deflector N, all substan-
tially as hereinbefore described with reference to figures 3, 4, 6 and 7, of the
accompanying Drawings.
Seventh. In supplying steam generators with heated water by means of pumps
as herein before set forth combining or coupling together a hot water pump J, and
a pump Л for water of condensation from the steam jackets of the cylinders in
such a manner as to prevent intermittence or interruptions in the delivery, an

page_text: intermediate regulating apparatus consisting of a cylinder m, containing a loose
piston, n, being interposed between the two pumps J and J at the entrance to the
delivery pipes, substantially as and for the purpose as hereinbefore described with
reference to figures 1 and 11 of the accompanying Drawings.
Eighth. In supplying steam generators with heated water by means of injectors
as hereinbefore set forth, the combination with an injector worked by exhaust
steam from the engine of an injector connected with the jackets of the steam
cylinders substantially as and for the purpose herein before described with reference
to figures 2 and 12 of the accompanying drawings.
Ninth. In supplying steam generators with heated feed water as herein before
set forth, protecting the boiler tubes from incrustations or deposits by means of a
nozzle or deflector, such as u' deflecting the entering stream away from the said
tubes substantially as herein before described with reference to figure 13 of the
accompanying Drawings.