Improvements in or relating to Means or Apparatus suitable for Drawing Off Water of Condensation from Steam Valves, Pipes, Chambers, and the like.
Year: 1895

page_text: Date of Application, 9th Aug., 1895
Complete Specification Left. 11th May, 1896-Accepted, 4th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Means or Apparatus suitable for
Drawing Off Water of Condensation from Steam Valves, Pipes,
Chambers, and the like.
I, ROBERT GRUNDY BROOKE, of Upton Grange, Macclesfield in the County of
Chester, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention is principally applicable to drawing off the contents of two or
more pipes, chambers, or other vessels simultaneously. It is, in particular, adapted
for drawing off the condensation-water from the two sides of a steam valve, or from
different parts of an engine, at the same time and by the opening of a single valve
or cock.
According thereto, each of the pipes, chambers, or other vessels the contents of
which are to be drawn off, is connected with a common chamber provided
with a steam ejector cone that is in constant communication with a source
from which steam is supplied to the chamber at a pressure that is normally
higher than that in any of the aforesaid pipes, chambers, or other vessels
aforesaid. All the inlets of the common chamber, with the exception of
the one from the said source of steam, are provided with automatic non-return
valves, and the chamber is provided with an eduction or delivery cone, and an
outlet controlled by a valve adapted to he opened and closed by hand, and
hereinafter referred to as the outlet valve, the arrangement being such that when the
outlet-valve is closed, the pressure of the steam in the chamber will keep all the
non-return valves closed whilst when the outlet valve is opened, steam will escape,
and by blowing out of the steam cone and through the eduction or delivery cone,
will act as an ordinary ejector and cause a reduction of pressure in the chamber
and on the non-return valves (sometimes below atmospheric pressure), thereby
permitting the non-return valves to open and drawing off the contents of the
various pipes, chambers, or other vessels connected with the common chamber.
In some cases hand-operated cocks or valves may be employed in lieu of the
aforesaid automatic non-return valves and the arrangement may be such that the
opening of any such cock or valve will at the same time open the outlet valve
and so start the ejector and cause it to draw off the contents of the corresponding
pipe or the like, the contents of the other pipe or the like remaining unaffected.
Or again, each pipe or the like may be provided with its own separate ejector,
so that while acting on the same principle, each can be controlled as required.
The various ejectors in such a case may be in a common casting having one
cominon steam-chamber.
In the application of this invention to a steam-valve for the purpose of drawing
off condensation-water from both sides of the valve proper, the operative steam is
derived from the inlet-side of the steam-valve. In one form of apparatus for
this purpose, the casing of the steam-valve is provided with two passages leading
from the exterior thereof to the two sides of the valve. The outlet of the passage
leading from the inlet-side of the steam-valve is provided with an ejector steam cone
and that of the other passage with an automatic non-return valve. These passages
are adapted to communicate with the ejector-shaped interior of a casing which is
secured to the casing of the steam-valve and is provided with an outlet furnished with a
valve, adapted to be operated from the exterior of the casing. The steam cone and
outlet valve may be covered by a steam tight detachable cap that forms part of the

page_text: eduction or delivery cone of the ejector. If desired, other pipes or the like
communicating for example with a part or parts of an engine-may be connected to
the same casing so as to have their contents drawn off by means of the same ejector,
the inlet from each such pipe to the interior of the casing being provided with a
non-return valve.
In another construction, the eduction or delivery cone and common chamber
are in one piece bolted or otherwise connected to a plate or casing carrying
the steam nozzle and draw off pipe or pipes with non-return valve or valves.
Dated this 9th day of August 1895.
Improvements in or relating to Means or Apparatus suitable for
Drawing Off Water of Condensation from Steam Valves, Pipes,
Chambers, and the like.
I, ROBERT GRUNDY BROOKE of Upton Grange Macclesfield in the County of
Chester, Engineer 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 is principally applicable to drawing off the contents of two or more
pipes chambers, or other vessels simultaneously. It is in particular, adapted for
drawing off the condensation-water from the two sides of the steam valve, or from
different parts of an engine, at the same time and by the opening of a single valve
or cock.
According thereto, each of the pipes, chambers, or other vessels the contents of
which are to be drawn off, is connected with a common chamber provided with a
steam ejector cone that is in constant communication with a source from which steam
is supplied to the chamber at a pressure that is normally higher than that in any of
the aforesaid pipes, chambers, or other vessels aforesaid. All the inlets of the
common chamber, with the exception of the one from the said source of steam, are
provided with automatic non-return valves and the chamber is provided with an
eduction or delivery cone, and an outlet controlled by a valve adapted to be opened
and closed by hand, and hereinafter referred to as the outlet-valve, the arrangement
being such that when the outlet-valve is closed, the pressure of the steam in the
chamber will keep all the non-return valves closed, whilst when the outlet-valve is
opened, steam will escapo and by blowing out of the steam cone and through the
eduction or delivery cone, will act as an ordinary ejector and cause a reduction of
pressure in the chamber and on the non-return valves (sometimes below atmospheric,
pressure), thereby perimitting the non-return valves to open and drawing off the
contents of the various pipes, chambers, or other vessels connected with the common
chamber.
In some cases hand-operated cocks or valves may be employed in lieu of the
aforesaid automatic non-return valves and the arrangement may be such that the
opening of any such cock or valve will at the same time open the outlet-valve
and so start the ejector and cause it to draw off the contents of the corresponding
pipe or the like, the contents of the other pipe or the like remaining
unaffected. Or again, each pipe or the like may be provided with its own separate
ejector so that while acting on the same principle, each can be controlled as required.
The various ejectors in such a case may be in a common casting having one common
steam-chamber.

page_text: In the application of this invention to a steam-valve for the purpose of drawing off
condensation-water from both sides of the valve proper, the operative steam is derived
from the inlet-side of the steam-valve. In one form of apparatus for this purpose,
the casing of the steam-valve is provided with two passages leading from the exterior
thereof to the two sides of the valve. The outlet of the passage leading from the
inlet-side of the steam-valve is provided with an ejector steam cone and that of the
other passage with an automatic non-return valve. These passages are adapted to
communicate with the ejector-shaped interior of casing which is secured to the
casing of the steam-valve and is provided with an outlet furnished with a valve
adapted to be operated from the exterior of the casing.
The steam cone and outlet valve may be covered by a steam tight detachable cap
that forms part of the eduction or delivery cone of the ejector. If desired, other
pipes or the like communicating for example with a part or parts of an engine-may
be connected to the same casing so as to have their contents drawn off by means of
the same ejector, the inlet from each such pipe to the interior of the casing being
provided with a non-return valve.
In another construction, the eduction or delivery cone and common chamber are in
one piece bolted or otherwise connected to a plate or casing carrying the steam nozzle-
and draw off pipe or pipes with non-return valve or valves.
In the accompanying drawings,
Fig. 1. is a vertical section of one form of my apparatus applied to a steam.
valve.
Fig. 2. a front elevation with part of the apparatus removed.
Fig. 3. a view of the valve and apparatus in plan.
Fig. 4. an enlarged sectional view of the non-return valves 7' 81.
Fig. 5. a sectional front elevation of another form of my improved ejector
constructed as a separate fitting.
Fig. 6. a section of part of the above at right angles through the line a. b.—showing
the controlling valve 5.
Fig. 7. a sectional view showing arrangement when several separate ejectors such
as tho one shown and each complete in itself are connected with one common steami.
passage and chamber 1.
Referring to Figs. 1 to 4. 1 is a passage leading from the inlet or pressure side of
the valve, that is the side containing the highest pressure when the steam or other gas
or fluid is shut off. This passage leads to the steam jet 2 of an ejector of which 3 is
the ejection tube, 4 & 4¹ an exit chamber or passage controlled by a valve 5, and
6 the suction chamber into which the liquid or fluid to be ejected is drawn by the-
action of the jet through the cone 3.
7 & 8 are passages leading from parts of the valve other than the side in connection
with the passage 1. These passages are in connection with the chamber 6 and
through them water of condensation etc. is drained off by the action of the ejector
when the latter is at work. At the ejector end the passages 7 & 8 are closed
The action of the apparatus is
normally by the self-acting non-return valves 7', 8¹
as follows:-
So long as the valve 5 is closed the steam or other fluid entering by the passage 1
and jet 2 is confined within the ejector and chamber 6 but is prevented by means of
the valves 71, 8' from passing up the passages 7, 8 and so into the other parts of the
valve or of the pipe or appliance with which it is connected. Upon the valve 5 being
opened the steam etc. flows down the passage 1 out of the jet 2 and through the
ejector cone 3 in doing which it tends to set up a vacuum in the chamber 6 in the
usual way owing to its velocity. The moment the pressure in chamber 6 is reduced
below that of the parts with which the passages 7 & 8 are connected the valves 7' 8¹
will open and the fluid contents of 7 & 8 flow into the chamber 6 and be ejected
through 3.
Upon the valve 5 being shut the valves 7' and 8¹ and consequently the passages 7 & 8.
will again be closed by the pressure in 6 acting upon them.
Suction passages such as 7 & 8 may be of any required number and may be of any

page_text: required form or length. They may be employed for draining any parts of steam
pipes engines or other appliances.
Figs. 5 and 6 illustrate one form of my invention made as a separate fitting. The
suction pipes 7, 71, 7" etc. are each provided with a non-return valve 8, 8¹ etc. and
each pipe is or may be provided with a valve or cock 9 so that any pipe so provided
may be shut off by hand when the ejector is at work.
In another form of my invention illustrated by Fig. 7 a number of separate
ejectors each complete in itself may be constructed in a common casting or body and
be connected with a common steam passage or chamber 1. In this arrangement the
various chambers 4 may if desired be arranged to discharge into a common chamber 4¹
and exit passage.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. An ejector stopped and started by a valve or cock at its delivery end and having
one or more suction passages each controlled by an automatic non-return valve
substantially as described herein.
2. My improved form of ejectors constructed, arranged and operating substantially
as herein before described with reference respectively to and shown in Figs. 1 & 4
inclusive, Figs. 5 and 6 and Fig. 7 of the accompanying drawings.
Dated this 8th day of May 1896.
ROBERT GRUNDY BROOKE.