IMPROVE- MENT IN CONDENSERS FOR PUMPING ENGINES
Year: 1883

page_text: LETTERS PATENT to William Agustus Miles, of Copake Iron Works, in the
State of New York United States of America for an Invention of IMPROVE-
MENT IN CONDENSERS FOR PUMPING ENGINES
PROVISIONAL SPECIFICATION left by the said William Agustus Miles at
the Office of the Commissioners of Patents on the 23rd January 1883.
WILLIAM AGUSTUS MILES, of Copake Iron Works, in the State of New York,
United States of America, IMPROVEMENT IN CONDENSERS FOR PUMPING
ENGINES,
In pumping engines the exhaust steam from the engine, has, in some instances,
been discharged into the suction pipe leading from the water to the pump, in order
that the steam may be condensed. In this instance there is a risk that the steam
will condense faster than it passes from the engine, especially when the engine is
running very slow, and that the water will get into the cylinder of the engine. If
a valve is used that is opened by the flow of the water, such valve may be open
when the vacuum in the exhaust steam pipe is greater than that in the suction
water pipe, in which case the water will pass into the steam pipe.
I avoid these difficulties by combining with the suction water-way, and the
steam pipe opening into the same, a check valve that prevents the flow of water
into the exhaust steam pipe or chamber, when the vacuum in the steam pipe is
greater than the vacuum in the suction water-way; check valves of various con-
structions may be employed; sometimes the valve is placed in the steam pipe, but
usually at or near the end of the exhaust steam pipe, where it opens into the
waterway; this valve is either annular or circular, or a series of long narrow
valves, and sometimes the valve is near the check valve for the water way. If the
pump is not sufficiently high above the water to obtain the required vacuum action
in the water-way, I prefer, and use a siphon pipe that rises above the level of the
water, and then descends to the pump, and I provide an automatic device, with
float and valves, to allow air to escape near the top of the siphon, and fill the space

page_text: :
with water, to maintain the action of the siphon. I also provide a vessel, into
which the exhaust steam is at liberty to expand before passing into the suction
waterway this vessel is either separate from, or else within the waterway, or
around the same, so as to be cooled thereby, and the water of condensation, and
any air, is drawn off into the suction waterway, there being a check valve at this
place. The valves employed for the purpose of preventing the water passing into
the steam space, and their mode of application, may be varied according to the
character of the waterway and pump; in all instances, the benefit of condensing
the exhaust steam is attained, and the pump that raises the water from one level
to another, maintains the vacuum in the exhaust, without any additional power,
thus effecting a great saving in the amount of steam required by working the
engine as a condensing engine.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Agustus Miles in the Great Seal Patent Office on the
23rd July 1883.
WILLIAM AGUSTUS MILES, of Copake Iron Works in the State of New York,
United States of America, IMPROVEMENT IN CONDENSERS FOR PUMPING
ENGINES,
In pumping engines the exhaust steam from the engine, has, in some instances,
been discharged into the suction pipe leading from the water to the pump in order
that the steain may be condensed. In this instance there is a risk that the steam
will condense faster than it passes from the engine especially when the engine is
running very slow and that the water will get into the cylinder of the engine.
If a valve is used that is opened by the flow of the water such valve may be
open when the vacuum in the exhaust steam pipe is greater than that in the
suction water pipe, in which case the water will pass into the steam pipe.
I avoid these difficulties by combining with the suction water-way and the steam
pipe opening into the same, a check valve that prevents the flow of water into the
exhaust steam pipe or chamber when the vacuum in the steam pipe is greater than
the vacuum in the suction water way. Check valves of various constructions may
be employed; sometimes the valve is placed in the steam pipe but usually at or
near the end of the exhaust steam pipe where it opens into the waterway; this
valve is either annular or circular or a series of long narrow valves, and sometimes
the valve is near the check-valve for the water-way. If the pump is not sufficiently
high above the water to obtain the required vacuum action in the water way, I
prefer and use a siphon pipe that rises above the level of the water and then
descends to the pump and I provide an automatic device with float and valves to
allow air to escape near the top of the siphon and till the space with water to
maintain the action of the siphon. I also provide a vessel into which the exhaust
steam is at liberty to expand before passing into the suction water way: this
vessel is either separate from or else within the water-way or around the same, so
as to be cooled thereby, and the water of condensation and any air is drawn off*
into the suction water-way, there being a check valve at this place. The valves
employed for the purpose of preventing the water passing into the steam space and
their mode of application may be varied according to the character of the water-
way and jump in all instances the benefit of condensing the exhaust steam is
attained and the pump that raises the water from one level to another maintains
the vacuum in the exhaust without any additional power, thus effecting a great
saving in the amount of steam required by working the engine as a condensing
engine.
In the drawings
Fig, 1. is a vertical section showing my invention in one of its forms.
"
"
2. is a similar view of the valve in a slightly modified form, and
3. is a plan of the same.
The pipe a. is the inlet through which the water is drawn and b. represents a pipe
leading to the pump. I prefer to make use of the siphon legs c. d. the first being
a continuation of the pipe a. the second intersecting the pipe b. There is a check-
valve at e. and a three way cock at f. When the pump is started the three
way cock is to be placed in the position shown by dotted lines in fig. 1. and closes
the siphon-leg d. and allows the water to be drawn up a. into b. and thence to the
pump. The cock f. is now gradually turned and the air exhausted from c. d. passes
to the pump. The water rises in c. past the check-valve e. and fills both c. and d

page_text: and when this is accomplished the valve f. is turned to close the passage between a.
and b. as shown by full lines fig. 1. and causes the water to flow by c. d. to b. to
the pump.
The water in the legs c. d. balances and there is but little extra power
exerted in the pump to draw the water over this siphon, but the vacuum at the
upper part of c. d. is greater than it is at the level of b.
Hence a better effect will be produced in condensing the steam that passes from
the engine by the pipe g. into the upper part of c. or d. If the column of water in
the pipe a. should be only, say five feet, there would be only about one third of a
vacuum-say ten pounds pressure, but if the siphon leg c. and pipe a. should be
twenty five feet long, there would be about five sixths of a vacuum, equal to about
two and a half pounds pressure, and the column d. acting upon the principle of the
siphon, counterbalances the weight of the column in c. and the pump itself only
bas to raise the water to the level of b. and overcome friction. The steam from the
engine is admitted by the pipe g. and in this pipe there is a valve i. for preventing
the water following up the steam and condensing it in said pipe h. when the engine
is running slowly. This valve may be of any desired character and the steam pipe
may pass into the uptake c. of the siphon. I have shown it in fig. 1. as in the
down-flow d. The valve i. is represented as closing upwardly into the flaring
month of the pipe 9 and the stem of said valve is guided by bridges and the
weight of the valve is sustained by the spring . This valve opens and lets the
steam out into the water whenever the vacuum in the upper part of the pipes c. d.
is greater than the vacuum in the steam pipe and when the vacuum in the steam
pipe is the greatest the valve closes.
If it is desired to place the steam pipe and valve in the uptake pipe c. the parts
should be made as seen in figs. 2. and 3. In this instance the valve i. is annular
and connected to the stem l. by arms, the steam pipe g. terminating in an annular
passage h. which the valve i. covers. This annular steam passage should be sup-
ported by arms m. that pass off to a ring that rests in a seat at the joint between
the pipes c.
In this form of valve the water passing through the steam ring as well as around
it, the condensing action is increased. In all instances it is important that the
openings for the steam to pass through as it issues into the water be narrow, so
that the steam will be condensed rapidly by the water.-In cases where there is a
valve that is opened by the flow of water, the steam way, if it is in any manner
influenced by such valve, will be opened so that water can pass into the steam
space.
Fig. 4. is a vertical section of the apparatus with the expansion chamber added
and with the device for removing any air that may accumulate in the
suction water-way.
Fig. 5. represents a modification of the exhaust steam valve shown in fig. 4.
Fig 6. is a sectional elevation of the parts at the top of the air chamber in
larger size.
Referring to said figs. 4. 5 & 6. the pipe a. is to extend to any suitable pumping
apparatus and the pipe b. is the suction or rising pipe that leads from the water
either direct or with siphon legs of greater or less length between the pipes a.
and b. The object of having siphon legs having been set forth with reference to
figs 1. & 2. I remark that they are beneficial when used under similar conditions
with the parts herein named; but some of the present devices are not necessarily
applied with said siphon legs. a. is a branch pipe with a cock or valve a². in it so
that in starting the pump this valve may be opened and after the water has been
drawn to the pump this valve may be closed gradually and the water drawn up to
fill the siphon. The exhaust steam from the pumping engine passes by the pipe e.
into an expansion chamber f. of suitable size and shape preferably of about the
same contents as the steam cylinder, so that there will be ample room for the puff
or sudden expansion of the exhaust steam and the pipe h. leads the steam into the
suction water pipe b. near the upper part thereof The expansion chamber allows
the steam to pass nearly continuously into the suction water-pipe instead of

page_text: •
entering the same suddenly or with a puff.-There is to be a check-valve to prevent
any water from passing back into the steam-pipe or expansion chamber. This
check-valve may be in the pipe h. as seen at l. fig. 5. but I prefer to use the valve
shown in fig. 4. in which the pipe h. passes vertically into the suction water pipe
and to the end of it is screwed a socket o. having legs on its lower end connecting
to the socket the cup p. and the valve l. is in the form of a ring surrounding and
guided by the socket o. and of a size to rest at its outer edge upon the edges of the
cup p. and thereby close when the vacuum in the exhaust steam pipe h. is greater
than that in the suction water way; but when the said vacuum is greatest in the
suction water way the steam escapes freely into the water and is condensed, thus
maintaining in the exhaust to the engine a vacuum as great as that in the suction
water way. In all instances the steam issues in a thin sheet or stratum from the
pipe h. into the suction pipe. In fig. 4. this stratum of steam issues between the
edge of the cup p and the edge of the valve l. In fig. 5. where the check valve l.
is in the pipe h. the stratum of steam issue between the edges of the flaring mouth
at the end of the pipe . and the edge of a deflector . that is supported by said
pipe h. Sometimes water of condensation will form in the expansion vessel f. and
to remove the same I employ a pipe n. leading from the bottom of said vessel and
terminating within the water way in a nozzle opening in the direction of the flow
of water, so that any water of condensation will be sucked out of the said expansion
vessel and I employ a check-valve at m. in this pipe n. to prevent water passing
back into the expansion vessel. When the pumping engine is running very slow,
the air that may pass with the steam into the suction water pipe may accumulate
in the top bend of the suction pipe. To remove the same I adopt an automatic
discharge constructed as follows:-
The cylinder or vessel ?. is above the top of the suction pipe and I arrange two
valves 8. and t. connected by a stem u. so that when the vessel becomes filled with
air, a steam valve or plug 3. is operated by the float v. and steam is admitted to
move the valves 8. and t. and allow water to run in and drive the air out, after
which the valve or cock 3. is moved the other way by the float and the steam shut
off and the parts fall by gravity and resume their normal position. In carrying
out this feature I make the valves 8. t. cylindrical and place them in the cylinders 5.
and 6. and around each valve there are two channels cut or turned. There is a
water-way 7. to the cylinder 5. and an air tube 8. opening at the lower end into
the suction water-way b. at the highest point and there is a tube t'. extending
from 5. up to near the top of the air-vessel 7. The float v. is free to move up and
down on the stem u. and at its extreme downward movement it rests upon the
cross-arm 10. and moves the same downwardly and with it the rod 12. that passes
through a small gland in the top of the air vessel and connects with the arm 13. of
the three-way cock. From this three-way cock there is a port 14. leading to the
lower end of the cylinder 6. below the piston valve t. and the steam-pipe 24. leads
also to this three way cock and 15. is an escape at this cock to the atmosphere.
At the cylinder 6. there is an air passage at 18. and the water pipe 19. The
parts are so constructed that in the normal position the valve t, closes the ports of
the air passage 18. and the water pipe 19. and the valve 8. opens the water pipe 7.
and the passage 8. through the air pipe t¹. Hence, presuming that the vessel r. is
full or nearly so, of water, the bubbles of air pass up freely from the suction water
pipe through the pipe 8. t'. into the vessel r. and at the same time the water runs
out therefrom into the suction water way by the pipe 7. When now the water has
run out of r. and its place been occupied with air, the float v. has descended and
by its weight it has moved the arm 10. and rod 12. and turned the three-way
cock 3. sufficiently to admit steam below the cylindrical valve t. which instantly
lifts the same and also the cylindrical valve 8. This movement closes the air and
water ports 7 and 8. and by the cylinder t. opens the water port 19, and the escape
air port 18. Consequently water runs into this vessel 7. by the pipe 19. and
passage 20. driving out the air by the said port 18. When therefore, the air has
been expelled and the float, rising moves the arm 21. rod 12. and three way cock 3.

page_text: the steam is shut off, an escape opened for the same and the cylindrical valves 8
and t. dropping restore the parts to their normal position, ready for the air from
the suction water way to pass into the chamber and gradually displace the water
as before mentioned.-I remark that the valves may be moved periodically by
hand or by a connection to a steam engine or other suitable means so as to dispense
with the float. In figs. 7. 8 & 9. a modification of this invention is shown in
which a series of steam ways are placed transversely to the suction water-way and
the exhaust steam is admitted into such steamways so that the steam passes into
the water from a number of narrow spaces and is condensed with rapidity. This
form of my invention is shown in Fig. 7. by a section through the suction water-
way and steam pipe. Fig. 8. is a section at the line x. x. of tig. 7. and Fig. 9. is a
section of a modification of the steamway.-Referring to said figs. 7. 8. and 9. a. is
the pipe that leads to the water supply and b. the pipe to the pump. The pipe d.
conveys the exhaust steam into the water-way. At the junction of these pipes
I provide a chamber c. which by preference is flattened in one direction and
extended in the other direction so as not to interfere with the free flow of water
in the suction water-way, and at the same time allow for the introduction of
elongated steam passage-ways i. that extend across the water way and are a
continuation of or in line with the exhaust steam pipe d. so that as the steam
issues from the pipe d. it will spread itself along in these steam ways i. and pass
gradually into the water and be condensed. If the pipes a. b. are horizontal, the
steamways i. should be in the upper part of the chamber c. If the pipes a. b. are
vertical the partitions o. between one steamway i. and the next may be inclined
downwardly as in fig. 8. to give better opportunity for the steam to pass along
below the inclined partition. I generally prefer to make the steam-ways in the
form shown in fig. 9. wherein there are valves or deflecting lips l. of sheet metal or
other suitable material attached to the fat surfaces formed at the edges of the
partitions so that these deflect the water as it passes by the openings between the
edges of the lip l. and the ends of the partitions o. If these deflecting lips are
sufficiently flexible, they will close down against the ends of the partitions o. and
form valves, if the vacuum in the steam spaces becomes greater than the vacuum
in the suction water pipe and thereby these deflecting lips will render the use of
other or check valves unnecessary. I have shown a check valve r. in the exhaust
steam pipe d which check valve opens to the steam as it flows towards the water-
way but this valve closes whenever the steam condenses in the pipe d. and the
vacuum becomes greater than that in the suction water-way. This prevents the
water Bowing into the exhaust steam pipe. In figs. 10 & 11. I have shown a
modification of the expansion chamber shown in fig. 4.
Fig. 10. being a vertical section showing the expansion or condensing vessel as
surrounding the suction-pipe A. and
Fig. 11. an inverted sectional plan at the line x. x. of fig. 10.
Fig. 12. is a vertical section showing the condensing vessel as within the suction
water-way A.
Referring to said figs. 10. 11. & 12. A. is the suction pipe. Around this pipe A.
there is a steam-jacket B. forming a condensing vessel, and into this vessel the
ste: m-pipe C. opens. At the bottom of the condensing vessel there are one or more
openings into the suction water-way so that any water of condensation will run or
be drawn out of the vessel B. into said water-way and should there be air with the
exhaust steam it will descend as it is displaced by the steam and it will be drawn
off with the water in the suction pipe A. to the pump. I make use of any suitable
opening between the end of the steam jacket or condensing vessel b. and the water-
way. I have shown said opening as a range of holes 8. and a valve i. placed upon
the under side of the valve seat, said valve seat forming the lower end of the
condensing vessel and having openings through said valve seat as seen in fig. 11.
The valve itself may be a disk of sheet metal clamped at its edges between the 5
flanges of the.condensing vessel and the enlarged upper end of the water-pipe.
This disk of metal has a central opening coinciding with the central water. way so

page_text: as not to obstruct the same.
This valve deflects the steam into the water as the
latter is drawn along in the suction pipe A. and causes it to pass in a thin stratum
and condense rapidly. I remark that usually the extent of surface in the con-
densing vessel will be sufficient to cause the steam to condense so that only water
and air or gases will be drawn out through the valve. If desired there may be
a vessel surrounding the vessel B. as indicated by dotted lines in fig. 10. so that
water may surround the vessel B. or said vessel B. may be simply a cylinder inside
the water way and the valve at the bottom be secured in the middle instead of at
the edges as seen in fig. 12. the operation of the parts being the same as before
described. In place of having a valve at the opening from the condensing vessel
into the suction water way to check the passage of water into the condensing
vessel, a check valve might be applied in the steam pipe, but it is preferable to use
the check-valve as shown.
In fig. 13. the condensing vessel B. is provided with a tube l. and valve 8. for
allowing the air and water of condensation to pass away; in this case I dispense
with the openings in the bottom of the condensing vessel and the valve applied at
said openings. The steam pipe c. passes into the condensing vessel near its top so
as to cause the steam to accumulate in the upper part of the condensing vessel
and drive down the air which is heaviest. The pipe . extends from near the
bottom of the condensing vessel to the top where its open end passes into the
suction water-way A. so that the vacuum action of the pump inay free the
condensing vessel from air and from the water of condensation. The check-valve 8.
is applied at the bottom of the pipe L. to prevent water being drawn into the
vessel B. when the vacuum action therein is greater than that in the suction pipe.―
It is advantageous to introduce the condenser vessel as high as possible in the
suction way to obtain the vacuum action due to the column of water, and I
remark that a siphon may be employed in cases where the water is drawn up but
a small distance by the pump, as herein before set forth.
If it is desired to provide easy access to the check valve, it may be placed outside
the pipe A. and the pipe be led out from the vessel B to such check valve and
then back again into the water way, as represented by dotted lines.
In figs 14. 15 & 16. 1 have shown modifications in the steam discharge openings
and the valves for the same.
Figs. 14. and 15. being vertical sections of said valves and
Fig. 16. is a plan of the valve seat below the line x. x. Fig. 15
The suction pipe a. leads to the water that is to be pumped and the pipe b. leads
to the pump. Between these pipes and preferably in the upper part of the suction
water way there is the case c. in which is an annular steain chamber d. into which
the exhaust steam pipe e. opens.
Above the steam chamber there is an annular valve i. the same being in the form
of a conical ring as seen in fig. 14. closing at its inner edge upon the upper edge of
the water-way tube 3. and being supported by a sheet of flexible metal such as
copper or brass at o. which passes in between the flanges p. of the two part case c.
and yields by its elasticity to allow the mouth for the exhaust steam to open
directly at the ascending column of water or else the valve i. is only composed of a
flat or nearly flat ring of thin sheet metal resting upon the flat or nearly flat scat 8.
as seen in fig. 15. there being a circular range of holes 9. in the top of the steam
chamber which top also forms the valve seat, in both modes of construction the
valve is raised by the vacuum in the suction pipe being greater than that in the
steam chamber, but if the reverse condition exists when the pump is running
slowly, the valve prevents the water passing into the steam chamber.
Usually I employ a check valve at the same place in the suction water way,
such valve being a puppet valve t. on a stem u. guided by a bridge v. as seen in
fig. 14. and closing upon the seat at the upper end of the tubular part 3. or else
the seat 8. is continued as seen in figs, 15, and 16. and provided with openings 5. in
a circular range above which is the flexible valve t. secured by a central bolt and
having a stationary check q. to support the back while the water is flowing

page_text: through the openings in the valve seat. By the devices described with reference to
figs. 14. 15 & 16. the steam is uniformly distributed into the column of water and
the condensation is very rapid and perfect and a good vacuum is obtained for the
pumping engine. The condensing apparatus shown in figs. 17, 18 & 19. and next
described is a modification of the condenser fig. 4. but differs therefrom in not
being dependent upon the suction action of a pump, the vacuum being maintained
by the column of water and the circulation resulting from one leg of the siphon
being longer than the other, or from the movement of a propeller blade revolved
gradually by power.
Fig. 17. is a vertical section of the apparatus
"
"
18. is a section of the cock and valve at the top of the air vessel and
19. is a plan of the upper part of the air vessel.
Referring to said figs 17. 18 & 19. A. and B. are the legs of the siphon united
at their upper ends by the curved pipe or water-way C.
The condensing water is supplied to the lower end of the pipe A. by a vessel D.
or other suitable device and there is a cock or valve E. in the pipe A. to regulate
the amount of water passing in, and also to close the said pipe A.. in filling the
siphon. At the lower end of the pipe B. there is a hot well or water vessel F. that
retains water and covers the inlet end of the pipe B. so as to exclude the
atmosphere. There is also a valve G. that is operated by a screw or otherwise to
regulate the discharge of the water and also to close the pipe B. in filling the
siphon. I have represented at H. a screw blade or propeller that may be revolved
gradually by power to promote a circulation of water in the siphon, but usually
this will not be needed. The valves and other parts thus far described may be of
any desired or known size or character. The exhaust steam passes from the
engine through the pipe s. to the upper part c. of the siphon and discharges
through openings into the water; these openings may be in a convex head similar
to a rose or sprinkler but I prefer to use the valve J. at the end of the steam pipe
which opens for the discharge of steam when the vacuum in the siphon is greater
than that in the steam pipe and closes if the steam condenses in the exhaust pipe so as
to produce a greater vacuum than that in the siphon. I remark that either of the
various forms of valves heretofore described may be used in place of the valve J.
without changing the mode of operation of this apparatus.
It will now be understood that the exhaust steam as it is discharged into the
water will be condensed and there will be as much vacuum as will sustain the
column of water in the leg B. I am however obliged to discharge air or gases or
uncondensed steam in order to maintain the vacuum. The device shown in fig. 4.
might be used for this purpose, but I prefer the apparatus next described.
:
The air vessel k. is provided with a barrel and tapering plug l. at the bottom
and a similar barrel and tapering plug m. at the top. These plugs are connected
by the rod n. that is provided with squared ends that enter similar sockets in the
plugs so that the two plugs turn together. There are double ways through each
plug the way 2. through the plug and barrel l. is for the escape of air from the
siphon c. into the air vessel k. and the way 3. is for water to run from k. into c.
In the barrel and plug m. there are two ways 4. and 5. the one for water to run
into k. from the supply pipe o. the other for air or steam to escape as the water
runs in. The plugs l. m. are placed on the stem or rod n. so that when the way's 2.
and 3. are open, the ways 4. and 5. are closed and by turning the stem to close 2.
and 3. the ways 4. and 5. are opened and the reverse. I move the cocks l. m.
automatically by steam pressure admitted to act upon a flexible diaphragin. The
float L. is free to rise and fall with the water level in k. and as the same rises it
acts on the rod 7. to lift the small piston valve 8. in the cylinder 8. and admit
steam pressure into the chamber t. beneath the flexible diaphragm t¹. and when the
float descends and rests upon a tappet or arm of the rod 7. it moves the piston
valve 8. the other way and relieves the pressure and allows the flexible diaphragm t'.
to move the other way. I remark that this flexible diaphragm and chamber are
similar to an ordinary steam diaphragm and the connection from the same to the

page_text: stem of the cocks 1. m. may be of any desired character. I have shown the bent
lever and weight u. to act upon the disk and stem above the diaphragm in the
opposite direction to the steam pressure and a link u. to the arm u³. at the upper
end of the valve stem, the parts being proportioned so as to give the required
partial rotation to the plugs l. m. in working the same to admit the air from the
siphon into the vessel k. as the water runs out of said vessel and then to close the
passages 2. and 3. automatically as the float descends and then to turn the cock the
other way as the vessel k. is again filled with water and the float rises. It is not
necessary that the delivery leg of the siphon be longer than the inlet leg because
the revolution of the propeller will cause a circulation of the water through such
siphon.
I claim as my Invention
First. The combination with the suction pipe in a water raising apparatus, of a
steam pipe through which steam from an engine is discharged, and a valve to be
opened by the steam and close in the other direction, substantially as set forth.
Second. The combination with the suction pipe in a water raising apparatus of a
siphon extending above the outlet pipe to the pump, and a pipe discharging exhaust
steam into the siphon near the upper part thereof, substantially as and for the
purposes set forth.
Third. The combination with the suction pipe a. b. fig. 1. of the siphon pipes c. d.
check valve e. three way cock f. and exhaust steam pipe opening into the siphon
pipe, substantially as set forth.
Fourth. The combination with the suction pipe in a water raising apparatus, of a
siphon extending above the outlet pipe, an exhaust steam pipe opening into the
suction pipe and a valve applied to the steam pipe opening by the steam and
closing in the opposite direction substantially as set forth.
Fifth. In a condensing apparatus for steam pumps, the combination with the
suction water way and the exhaust steam pipe opening into such water-way, of an
expansion vessel receiving the steam before it reaches the water way, substantially
as and for the purposes set forth.
Sixth. The combination in a condensing apparatus for steam pumps, of a suction
water way, an exhaust steam pipe opening into such water-way, an expansion
vessel and a check valve, substantially as set forth.
Seventh. The combination with the suction water way and the exhaust steam
pipe, of a cup at the end of such steam pipe and an annular valve surrounding
the steam pipe and resting at its edges upon the cup, substantially as set forth.
Eighth. In a condensing apparatus for steam pumps, the combination with the
suction water way and the exhaust steam pipe entering such water way, of an air
vessel above the suction water way and an opening leading into such air vessel,
for the purposes and substantially as set forth. Ninth. The combination with the
suction water way in a pumping apparatus, of an air vessel above the highest point
of such water-way, an opening and valve for air to pass from the water way into
the vessel, an opening and valve for water to pass out of the air vessel into the
water-way and means for supplying water into the air vessel for displacing the
atmosphere, substantially as set forth. Tenth. The combination with the air vessel
fig. 4. of the sliding valves 8. and t. and their respective pipes and ports, the float,
and the three way cock or valve to admit steam to raise the valves 8. and t
substantially as set forth. Eleventh. The combination with the suction water way
and the exhaust steam pipe, of steamways passing across the water ways, substan-
tially as set forth. Twelfth The combination with the water way in a steam
pumping apparatus, of the partitions o. (figs. 7. and 8) intermediate steamways
and the deflecting lips l. and exhaust steam pipe d. substantially as set forth.
Thirteenth The combination with the suction water way and exhaust steam pipe,
of steamways passing across the suction water way and opening into the water
space, and a check valve or valves, substantially as set forth. Fourteenth. In a
condenser for pumping engines, the combination with the suction water way, of
a condensing vessel (figs. 10. and 12) and an opening from the bottom of the

page_text: condensing vessel into the water way and a valve at said opening, substantially as
set forth. Fifteenth The combination with the suction water way A. of a
condensing vessel surrounding the water way, having an opening at or near the
bottom for the water of condensation and any atmosphere to be drawn into the
suction water way, substantially as set forth. Sixteenth The combination with the
suction water way, of a condensing vessel, an opening in the same at or near the
bottom for the water of condensation and air to be drawn into the suction water
way, and a check valve, substantially as set forth. Seventeenth In a condensing
apparatus for steam pumps, the combination with the water way pipes, of a
condensing vessel within the water way, an exhaust steam pipe opening into the
top part of the condensing vessel, and a pipe from the lower part of the condensing
vessel opening into the suction water-way substantially as set forth. Eighteenth
In a condensing apparatus for steam pumps, the combination with the water way
pipes, of a condensing vessel within the water way, an exhaust steam pipe opening
into the top part of the condensing vessel, a pipe from the lower part of the
condensing vessel opening into the water way, and a check valve, substantially as
set forth. Nineteenth The combination with the suction water way and the exhaust
steam pipe in a steam pumping apparatus, of an annular steam chamber around
the water way (figs. 14 & 15.) and a valve to exclude water from the steam
chamber substantially as set forth. Twentieth. The combination with the suction
water way and the exhaust steam pipe, of an annular chamber around the water
way, a valve for the same, and a check valve in the suction water way, substantially
as set forth. Twenty first. The combination in a steam pumping apparatus, of the
suction water way, an annular steam chamber, flat or nearly flat valve seats, an
annular valve of sheet metal and a central check valve of flexible material, the seats
being perforated for the passage of the steam and water respectively, substantially as
set forth. Twenty second. The combination with the siphon A. B. C (fig. 17) of a
water supply D. a discharge vessel F. at the lower end of the siphon leg B. and an
exhaust steam pipe opening into the upper part of the siphon substantially as set
forth. Twenty third. The siphon A. B. C. water supply and discharge devices, in
combination with the valves EG and exhaust steam pipe, substantially as set
forth. Twenty fourth. The combination with the siphon A. B. C. and water
supply and discharge vessel, of the exhaust steam pipe passing into the upper part
of the siphon, an air vessel above the siphon and automatic devices substantially
as set forth, for allowing air to escape from the siphon as water is discharged from
the air vessel and then for admitting water into the vessel and discharging the air,
substantially as specified. Twenty fifth. The combination with the barrels and
plugs . m. (figs. 17. and 18) each having air and water passages and a stem
connecting them together, of an air vessel, a float in the same, a steam valve
operated by the float, a case and elastic diaphragm acted upon by pressure and
levers and connections between the diaphragm and the stein of the plugs, substan-
tially as set forth.-Twenty sixth. The combination with the siphon A. B. C. the
means for supplying water and the discharge vessel F. of an exhaust steam pipe
entering the upper part of the siphon and opening in the direction of the How
of the water, and a valve at the end of such pipe, substantially as specified.
In witness whereof I have hereunto set my hand and seal this 30 day of June
AD 1883
WILLIAM AGUSTUS MILES (L.S.)
Witnesses
CHRH SMITH 140 Nassau St New York
J. STAILY 140 Nassau St. New York