Improved Apparatus for Regulating the Injection Water for Condensing Purposes, and the Temperature of the Condensed Water.
Year: 1895

page_text: Date of Application, 10th May, 1895
Complete Specification Left, 8th Feb., 1896-Accepted, 9th May, 1898
PROVISIONAL SPECIFICATION.
Improved Apparatus for Regulating the Injection Water for
Condensing Purposes, and the Temperature of the Condensed
Water.
MATTHEW JONES 16 Lower Cathedral Road Cardiff Marine Engineer, Inte
Royal Navy, do hereby declare the nature of this invention to be as follows:-
My invention consists of a governor or regulator to supply automatically the
quantity of injection water in exact ratio or proportion to pressure of steam in
boiler and whatever variation of pressure in boiler or temperature of sea or quality
of fuel the injection or coulating water is regulated.
I carry my invention into practice in manner as follows.
I construct a rectangular, round or other suitably shaped hollow casing in any
suitable metal or material and such hollow casing will be hereinafter termed the
valve box.
For the purpose of description I will assume the valve box is square or of
a rectangular shape.
In the base of the valve-box is an aperture into which fits a valve which valve
will be hereinafter referred to as the injection valve, this valve is connected with,
and controls the amount of water passing through the injection pipe.
On any one of the sides of the valve box is an opening which communicates
with the circulating pumps or other apparatus that passes the cold water through
the condensere.
There may also be another opening which in the case of steam ships
communicates with the bilge and water can be drawn from there when desired, foi
condencing purposes..
Attached to the injection valve is a rod which rod will be hereinafter referred to
as the valve rod.
This valve rod passes through a stuffing box in the top portion of the valve
casing, this stuffing box will be hereinafter called the valve stuffing box.
At some convenient distance on the valve od remote from the valve casing,
piston is fitted on the valve rod and such piston works in a cylinder both ends of
the valve rod passing through stuffing boxes fitted on the ends of the cylinder, the
cylinder may or may not be steam jacketed.
There is an aperture in the steam cylinder in the part uearest to the valve
casing and so arranged that when steam is passed into the cylinder through the
said aperture from tho boiler it tends to force the piston up, or away from the
valve casing, and by so doing lifts the injection valve. The injection valvo be it
noted being connected both with the piston & the injection valve by the valve 10d.
At some convenient distance away from the top end of the cylinder or that end
most remote from the valve casing the valve rod is so shaped to receive the thrust
of a coiled or other shaped spring and the normal tendency of this spring is to
press the injection valve upon its seat or in other words to close it.
The amount of pressure that can be exerted by the hefore named spring is
regulated by means of a screw and hand wheel or any other well known mechanical
equivalent.
The apparatus herein before described, 18 in marine engines placed between the
sea injection and the circulating pumps in laud or other engines it may be placed in

page_text: any suitable position. The working of the apparatus is as follows in steam ships :-
The sea injection being opened and the cuculating pumps being worked water is
drawn though the injection valve and passed on to the coudenser, steam having
been previously turned on so as to enter the lower end of the cylinder and thus
tonding to compiess the spring and also by means of the valvo iod to lift the
injection valve allowing a certain amount of water to pass to the cnculating
pumps The wheel is now actuated to compress the sping until the vacuum
gauge is found to indicate say 21 inches of vacuum or any other required measure
of vacuum or until the water in the hot well is at or neat boiling point or any other
required tempertuie.
Thus the temperture of the water in the hot well is raised at or near boiling
point and is at that temperture fed into the boilers, it will thus be seen by menus
of this apparatus the work of the circulating pumps can be so adjusted that no
more water is diawn through the condensers than is needed to keep a proper
vacuum and the condensed water from the exhaust steam 18 ouly cooled to, or near
boiling point and in this state is roturned to boilers.
By the heretubefore named expression "hot well" is meant the receptacle used
for the hot water coming from the condensed steam and the economy on fuel
ensues from keeping this water as hot as possible prior to its entering boiler as
feed water.
Dated this 6th day of February 1896.
W. M. LLEWELLIN, C.E.,
Agent for Applicant.
CODIE DETE STUITIVATION.
Improved Apparatus for Regulating the Injection Water for
Condensing Purposes, and the Temperature of the Condensed
Water.
MATTHEW JONES 16 Lower Cathedral Road Cardiff Marine Engineer late
Royal Navy 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 consists of a new or unproved apparatus to regulate the supply of
feed water to the condensing apparatus in connection with marine or laud engine.
The objects of the invention are as follows:-
:-
During certain periods when a condeusing engine is working the temperture of
the water requned for condening purposes varies such water used for such purposes
will be hereinafter in these presents be referred to as condenser water.
When the tempeiture of water is low less condeuser water will be necessary than
when the temperture of water is higher consequently the work on the pumps or
other apparatus for circulating the condeuser water through the condenser is
properly adjusted to move or lift only sufficient condenser water to bring about the
best and most economical expenditure of work in the pumps or other apparatus for
cuculating the coudeuse water.
In like manner when the cogines may be racing or running at excessive speed
and doing httle or no work except overcoming their own incitin the supply of
condeuse water can be regulated to the exact amount of condenser water required
to condense the exhaust steam from the engines. Or in other words my apparatus
is for regulating or adjusting the amount of condenser water required to condense
the periodical or other fluctuations of the volume or amount of exhaust steam.
A consequent advantage follows from the proper proportioning of the amount of
condenser water requned to condense the periodical or other fluctuations in the
amount and volumo of the exhaust steam from engines; is that the condensed

page_text: water of the exhaust steam is produced in a continuous manner at a high
temperture so that it can be if required returned again to the steam generators
almost at or near boiling point this result produces a large economy in fuel.
I carry my invention into practice in manner as follows:-
I constinct in metal or other suitable material a rectangular round or other
suitably shaped hollow casing the said casing may have two or more branches
outlets or apertines
The hereinbefore described casing will be called the valve casing.
For the purpose of making this description cleat 1 will describe the valve casing
as if it were rectangular in vertical and horizontal sections
By preference at the bottom of the valve casing I form an aperture and in it
form a valve soating upon which a valve fits this part of the apparatus will bo
hereinafter termed the injection valve. The injection valve is connected by
a tubo on other suitable means to the source form which the condenser water is
obtained.
By preference on one of the sides of the valve casing 1 form another aperture
this aperture will be hereinafter termed the circulating outlet, and is in direct
communication with the circulating pumps that actuate the condense water or
cause it to circulate in the condensing apparatus.
I may or may not as required make other apertures in the valve casing for the
purpose of drawing condenser or other water from other sources than that herein-
before nained for example in steam ships it may be desirable to diaw condenser
water from the bilge, such other outlet or outlets will be hereinafter teimed bilge
port or supplimentary ports
On the top of the valve casing is a cover secured to the valve casing by nuts
and bolts or any of the usual well known means, on the valve casing cover 18
a stuffing box, through which works a rod attached to the injection valve, this rod
will be hereinafter referred to as the valve rod.
The valve rod has formed upon it at some convenient distance a piston and on
this piston are fitted Ramsbottom 1ngs or other equivalent ariangement for
keeping a piston steam tight when working in a cylinder.
A cylinder is suitably placed so as the piston that is formed on the valve od
can work in same. At each end of the cylinder are covers and stuffing boxes.
The cylinder may or may not be steam Jacketted.
There is a connection from the boiler to the underside of the piston or that part
of the cylinder uext the valve casing.
The valve rod is suitably shaped after passing the upper stuffing box or stuffing
box furtherest away from the valve casing to receive one end of a spital or other
shaped spring.
At the other end of the spring is fitted a spindle which is threaded the threaded
part passes through a fixed cross piece and the end of the spindle next the spring
is made to receive the other end of the spring.
The screwed spindle engages with a screw formed in the centre of a hand wheel.
The centre boss of the hand wheel butts against fixed piece and by adjusting the
hand wheel the spring can be more or less compiessed.
Figure 1 is a sectional elevation of the apparatus.
Figure 2 18 an elevation of another modified arrangement for regulating the
compressing spring and valve spindle the other parts of the apparatus remaining
the same.
In Fig. 1. A is the valve casing B the injection valve.
B Injection valve seating. B" njection valve port.
C Branch in valve casing leading to circulating pumps or other apparatus for
forcing the condenser water though the condenser or condensing apparatus.
D Branch or port ou valve casing for drawing condenser water from alternative
source for example the bilge in steam ships when this apparatus is used for marine
engines.
E Ton of valve casing.

page_text: E' Cover of valve casing.
F Stuffing box attached to top of cover of valve casing through which valve rod
passes.
G Valve rod spindle which is attached to injection valve B
II Steam cylinder.
1 Steam jacket of steam cylinder.
J Bottom cover of steam cylinder.
Top cover of steam cylinder.
K Stuffing box on bottom cover of steam cylinder.
K' Stuffing box on top cover of steam cylinder.
Lugs to secure steam cylinder in a fixed and rigid position to standards Mat
points Li L
M Standards fixed in the top and cover of the valve casing to which certain
fixed parts hereinbefore and hereinafter described are fixed.
L' Steam pipe from boiler through which passes "live" steam from boiler to
the underside of the piston and thereby causing the spring P to be more or less
compressed through and by menus of the valve rod G and its connected parts.
N Piston working in cylinder H the position of piston being above the steam
inlets into the cylinder II.
X Steam ports in cylinder II.
N' Steel rings fitted round the piston N for making it steam tight in the
cylinder 11, such steel rings are usually known by the name of "Ramsbottom
rings."
O Inverted "T" (1) shaped end of valve od G to receive one end Pt of coiled
spring P. P coiled spring more or less in a state of compression when apparatus
Is use. Qinverted "T" shaped (1) shaped end of compressing sciew Q to
receive end 1 of spring P.
R Bridge piece fixed to standards M at R' the centre of bridge bored so that
the part Q will pass readily through it.
Qis the theaded part of the compressing screw sliding freely though the hole
in centre of bidge picco R
Sand wheel the upper side of the boss of which S¹ bears against the under
side of the bridge piece R.
The action of the apparatus is as follows.
Steam having been let into the steam jacket I and from thence through ports X
into that part of the cylinder I below the piston N.
The tendancy of the steam pressuno on the piston N being to raise the piston
and consequently the valve 1od G and compress the spring Pat the same time
lifting the valve B.
If now any desired boiler pressure be taken as a standard, and the compression
of the spring be adjusted by means of the hand wheel S. and screw Q' so that any
pressure in excess of the standard pressure will compress the spring P then the
valve B will be opened more fully and a laige amount of condenser water will be
drawn through the port B" and circulated through the condensing apparatus. If on
the other hand the pressure of steam falls below the standard boiler pressure then
the resilience of the sping Povercomes the steam pressure, under the piston N
and a closing direction is given to the valve B through the valve 1od G.
It will this be observed that as long as there is a standard pressure of steam in
the boiler and a given amount of condenser water is passed through the injection
salve to meet the requirements of this standard pressure of steam and the lift
of the valve B has been adjusted by means of the hand wheel S to pass this
given amount of condenser water the force of the steam pressing the piston up thus
tending to raise the valve B and the resilicuco of the sping P tending to force the
piston down and so close the valve B these two opposing forces will be balanced
but as soon as there is an increase or decrease of the standard steam pressure the
balance of the opposing forces will be upset and the valve B will be either opened
or closed by any increase or decrease of steam pressure.

page_text: The steam cylindeı may or may not be steam jacketed and instead of a coiled
spring P any other niechanical equivalent may be used such as an adjustable
balance weight on a lever.
In Figure 2 another arrangement of valve spindle compressing spring is shown,
the other details of the apparatus being the same as in Figure 1.
In the arrangement as shown in Figure 2 the bridge piece R is at R" screwed
uternally and a hollow spindle T 15 screwed externally and fits the scrowed
part R of the bridge pièce R a prolongation U of the valve spindle & passes
through the hollow sciewed spindle T.
The lower part U₁ of the hollow spindle T bears upon a loose washer V which
bears upon the top part P of the spring P the washer V is free to move round
the valve spindle G when the hand wheel S is revolved in a right or left hand
direction it either puts on or takes off pressure from the coiled spring P.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to bo performed I declare that what
I claim is:
1. An apparatus substantially as herein described and set forth for the purposes
lierembefore stated and set forth.
2. A combination of a steam cylinder acting directly on a valve to control the
injection water to cuculating pumps in connection with condencing apparatus.
3. The method of acting upon a piston by live steam from a steam generator as
bereinbefore described and set forth to actuate and regulate a valve for the
purposes hereinbefore set forth and described.
Dated this 7th day of February 1896.
W. M. LLEWELLIN, C.E.,
15, King Square, Bristol, Agent for Applicant.