Improvements in Valves Used in Connection and in Combination with Exhaust and Exhaust and Supplementary Live Steam Injectors and for other purposes.
Year: 1898

page_text: Date of Application, 6th Oct.,
4500
Complete Specification Left, 4th July, 1899-Accepted, 12th Aug., 1899
Complete Specification Left, 4th July, 1899-Accepted, 12th Aug.,
1899
PROVISIONAL SPECIFICATION.
Improvements in Valves Used in Connection and in Combination with
Exhaust and Exhaust and Supplementary Live Steam Injectors
and for other purposes.
I, JAMES METCALFE, of 32, North Parade, Aberystwyth, in the County of Car-
digan, Engineer, do hereby declare the nature of the said invention, to be as
follows;
or
deficient,
Firstly. My invention relates to an improved combination and arrangement of
valve mechanism for supplying live steam automatically to exhaust steam, or
combined exhaust and supplementary live steam injectors, to take the place of
the exhaust steam when that ceases to be supplied to the injector or combined
injectors, becomes
such automatic valve being actuated
of a
the
diaphragm and
to open and close by means
pressure of
steam or fluid acting thereon in the valve chest of the engine supplying the
exhaust steam when at work to the injectors or combined injectors, as when the
pressure of fluid in the valve chest ceases or descends to a pressure fixed upon,
the valve is opened by the pressure of live steam within the casing of the valve
and this live steam passes to the exhaust injector to supply the place of exhaust
steam which has ceased to be discharged or has become deficient and the valve
closes when the supply of exhaust steam has been sufficiently renewed, the pres-
sure of steam in the valve chest of the engine then being sufficient to shut and
keep the valve shut.
This valve mechanism may also be used for regulating the supply of live steam
to the live steam portion of exhaust and supplementary live steam injectors and
may also be used for other purposes where a supply of fluid or steam is to depend
upon fluid pressure in some vessel different from that directly supplying the
fluid or steam.
My invention consists in a casing having a flange for union with a boiler or
steam pipe which thus supplies the casing with steam, in which casing passages
are formed leading to and from a valve seating within the casing which is pre-
pared with a guide to guide the spindle of a valve having a disc valve upon it
which can close firmly against the said seating.
One end of a continuation of this valve spindle passes through a guiding hole
in an inner flanged disc that screws fluid tight into one end of the casing or is
otherwise secured thereto.
This inner flanged disc is recessed to fit a diaphragm piston or head fixed on
the outer end of the continuation spindle and the diaphragm of any suitable
elastic material comes against the piston, and its margins are secured fluid tight
between the said inner flanged disc and an outer flanged disc in which there is
a screwed nozzle fluid tight to couple up with the pipe which is in communica-
tion with the steam chest of the engine or vessel containing the fluid, the pres-
sure of which is to act upon the diaphragm and cause the valve to open and
close.
There is also a nozzle screwed into the said inner flanged disc to couple up

page_text: with a pipe to take away any fluid that may leak into the space in the cavity
for the diaphragm piston or head, the bore of this outlet pipe being a continua-
tion of a small passage from that said cavity.
The other end of the valve spindle enters a hole in a stirrup formed part on
the inner end of a spindle screwed at its inner end which screwed part screws
into a part that screws fluid tight into the other end of the said casing or is
otherwise secured thereto, by which said inner flanged disc and said part both
ends of the casing are closed.
a hand
The said part into which the spindle screws is formed into a packing gland
or stuffing box for the outer end of the spindle upon squares upon which
wheel is placed for rotating the spindle.
The screwed spindle can thus rotate round the end of the inner spindle without
rotating it, and there is a screw nut inside the said stirrup on the end of the
inner valve spindle which is secured by a pin, and by this means the two spindles
are connected and end movement can be given to the inner spindle.
By this means, by rotating the screwed spindle, the valve can be held from
opening, or can be opened, or can be allowed to open to any required extent
automatically.
Secondly. My invention consists of a casing having a flange by which it can
be secured fluid tight to a boiler or pipe connected therewith. This casing has
a seating for a cone valve which is on the inner end of a spindle which screws
through a bush that screws fluid tight into the casing. There is a stuffing box
for the spindle at the outer end of the bush and the spindle is rotated by a hand
wheel secured on its end.
The inner end of the bush fits fluid tight in the casing when screwed in, and
its inner end has a valve seating formed upon it for a cone facing on the back
side of the valve on the inner end of the spindle which is thus a double valve,
and when screwed in against the first named seating shuts off the supply of
steam from the boiler and when screwed out against the seating on the bush
prevents fluid or steam from the boiler entering the bush and passing through
Forts in its sides to a cavity round the bush which communicates with a passage
or junction to which a pipe, can be coupled to convey steam to the live steam
injector of a combined exhaust and supplementary live steam injector.
From a passage in the casing steam is supplied to another combination accord-
ing to my invention through the first named valve to the steam cavity of the
casing of the automatic valve above described under head one, the casing of
which is modified and combined with the casing first referred to under this head,
in which combined casing there is also a passage formed to be coupled to a pipe
conveying steam to the inlet cavity for exhaust steam of the exhaust steam
injector.
Thirdly. In the combined casing referred to under head 2 there is or may be
according to my invention a seating formed for a cone or ball clack valve, the
stem for the cone clack valve is guided in a hollow plug screwing fluid tight
into the casing or this or an equivalent screw plug will give access to a ball
valve. There is a junction on the casing for a pipe which brings combined
steam and water from the injector or injectors to the clack valve, and there is
a passage in the casing leading to a hole or outlet in the flange of the combined
casing communicating with the water space of the boiler.
Fourthly The combined mechanism described under heads two and three may
according to my invention have also a second automatic valve similar to that
described under head one combined with its casing one for supplying live steam
for the purpose explained under heads one and two, and the other for supplying
live steam to the live steam portion of the combined exhaust and supplementary
live steam injector.
The automatic valve for live steam to the live steam part of the combined
injector is actuated by pressure taken from the delivery from the exhaust steam
portion of the injector so as to turn on the live steam and keep it on when the

page_text: pressure of fluid at the delivery or clack valve of the exhaust injector has attained
about its maximum, and the automatic valve shuts off the live steam when the
said fluid pressure at the clack valve is below that maximum.
בד
רד
1
1
1000
PETER J. LIVSEY,
Agent.
Improvements in Valves Used in Connection and in Combination with
Exhaust and Exhaust and Supplementary Live Steam Injectors
and for other purposes.
I, JAMES METCALFE, of 32, North Parade, Aberystwyth, in the County of Car-
digan, 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:-
1
Firstly. My invention relates to an improved combination and arrangement of
valve mechanism for supplying live steam automatically to exhaust steam, or
combined exhaust and supplementary live steam injectors, to take the place of
the exhaust steam when that ceases to be supplied to the injector or combined
injectors, or becomes deficient, such automatic valve being actuated
to open and close by means of diaphragm and
a
the pressure of
steam or fluid acting thereon in the valve chest of the engine supplying the
exhaust steam when at work to the injectors or combined injectors, as when the
pressure of fluid in the valve chest ceases or descends to a pressure fixed upon,
the valve is opened by the pressure of live steam within the casing of the valve
and this live steam passes to the exhaust injector to supply the place of exhaust
steam which has ceased to be discharged or has become deficient and the valve
closes when the supply of exhaust steam has been sufficiently renewed, the pres-
sure of steam in the valve chest of the engine then being sufficient to shut and
keep the valve shut.
This valve mechanism may also be used for regulating the supply of live steam
to the live steam portion of exhaust and supplementary live steam injectors, and
may also be used for other purposes where a supply of fluid or steam is to depend
upon fluid pressure in some vessel different from that directly supplying the
fluid or steam.
My invention consists in a casing having a flange for union with a boiler or
steam pipe which thus supplies the casing with steam, in which casing passages
are formed leading to and from a valve seating within the casing which is pre-
pared with a guide to guide the spindle of a valve having a disc valve upon it
which can close firmly against the said seating.
One end of a continuation of this valve spindle passes through a guiding holo
in an inner flanged disc that screws fluid tight into one end of the casing or is
otherwise secured thereto.
1
This inner flanged disc is recessed to fit a diaphragm piston or head fixed on
the outer end of the continuation spindle and the diaphragm of any suitable
elastic material comes against the piston, and its margins are secured fluid tight
between the said inner flanged disc and an outer flanged disc in which there is
a screwed nozzle fluid tight to couple up with the pipe which is in communica-
tion with the steam chest of the engine or vessel containing the fluid, the pres-
sure of which is to act upon the diaphragm and cause the valve to open and
close,

page_text: There is also a nozzle screwed into the said inner flanged disc to couple up
with a pipe to take away any fluid that may leak into the space in the cavity
for the diaphragm piston or head, the bore of this outlet pipe being a continua
tion of a small passage from the said cavity.
The other end of the valve spindle enters a hole in a stirrup formed part on
the inner end of a spindle screwed at its inner end which screwed part screws
into a part that screws fluid tight into the other end of the said casing or is
otherwise secured thereto, by which said inner flanged disc and said part both
ends of the casing are closed.
The said part into which the spindle screws is formed into a packing gland
or stuffing box for the outer end of the spindle upon squares upon which a hand
wheel is placed for rotating the spindle.
The screwed spindle can thus rotate round the end of the inner spindle without
rotating it, and there is a screw nut inside the said stirrup on the end of the
inner valve spindle which is secured by a pin, and by this means the two spindles
are connected and end movement can be given to the inner spindle.
By this means, by rotating the screwed spindle, the valve can be held from
opening, or can be opened, or can be allowed to open to any required extent
automatically.
Secondly. My invention consists of a casing having a flange by which it can
be secured fluid tight to a boiler or pipe connected therewith. This casing has
a seating for a cone valve which is on the inner end of a spindle which screws
through a bush that screws fluid tight into the casing. There is a stuffing box
for the spindle at the outer end of the bush and the spindle is rotated by a hand
wheel secured on its end.
The inner end of the bush fits fluid tight in the casing when screwed in, and
its inner end has a valve seating formed upon it for a cone facing on the back
side of the valve on the inner end of the spindle which is thus a double valve,
and when screwed in against the first named seating shuts off the supply of
steam from the boiler and when screwed out against the seating on the bush
prevents fluid or steam from the boiler entering the bush and passing through
ports in its sides to a cavity round the bush which communicates with a passage
or junction to which a pipe can be coupled to convey steam to the live steam
injector of a combined exhaust and supplementary live steam injector.
From a passage in the casing steam is supplied to another combination accord-
ing to my invention through the first named valve to the steam cavity of the
casing of the automatic valve above described under head one, the casing of
which is modified and combined with the casing first referred to under this head,
in which combined casing there is also a passage formed to be coupled to a pipe
conveying steam to the inlet cavity for exhaust steam of the exhaust steam
injector
Thirdly. In the combined casing referred to under head 2 there is or may be
'according to my invention a seating formed for a cone or ball clack valve, the
stem for the cone clack valve is guided in a hollow plug screwing fluid tight
into the casing or this or an equivalent screw plug will give access to a bal!
valve. There is a junction on the casing for a pipe which brings combined
steam and water from the injector or injectors to the clack valve, and there is
a passage in the casing leading to a hole or outlet in the flange of the combined
casing communicating with the water space of the boiler.
Fourthly. The combined mechanism described under heads two and three may
according to my invention have also a second automatic valve similar to that
described under head one combined with its casing one for supplying live steam
for the purpose explained under heads one and two, and the other for supplying
live steam to the live steam portion of the combined exhaust and supplementary
live steam injector.
The automatic valve for live steam to the live steam part of the combined
injector is actuated by pressure taken from the delivery from the exhaust steam

page_text: portion of the injector so as to turn on the live steam and keep it on when the
pressure of fluid at the delivery or clack valve of the exhaust injector has attained
about its maximum, and the automatic valve shuts off the live steam when the
said fluid pressure at the clack valve is below that maximum.
Fig. 1, is a longitudinal section through the axes of the valve and diaphragm
piston spindles, and
Fig. 2, is a cross section at A-B Fig. 1, illustrating the improvements under
the first head of my invention.
Fig. 3, is a section of a modification of the apparatus illustrated by Figs. 1
and 2, combined with a steam supply and stop valve and a clack valve for the
fluid delivered from an injector or injectors all in one casing.
Fig. 4, is a cross section on the line CD Fig. 3. These figures will illus-
trate the improvements under the second and third heads of my invention.
Fig. 5, is a similar view to Fig. 4, with a second automatic valve combined
therewith and will illustrate the fourth head of my invention.
Fig. 6. is a modification of parts at the left hand end of Fig. 1.
a, is the main casing or body for the valve mechanism, on one side of which
there is a branch having a flange a', by which it can be united to the boiler.or
pipe to supply steam to the valve.
Within the body casing there is a partition a², forming two compartments a³
and at, one of which (3) is open to the steam supply from the boiler, and into
this end of the body part a casing a³, is screwed steam tight which forms the
guide for a spindle b, that can screw through a thread formed in it, and there
is a packing gland arrangement round the screwed spindle 6; a disc b¹, to form
the inner end of the packing recess, and a tube 62, to compress it, which tube is
forced against the packing placed between the disc 61, and tube 62, by a cap b³,
screwing upon the exterior neck of the casing a. The outer end of the screwed
spindle b, has squares formed upon it to fit a hand wheel 64, by which the spindle
can be screwed in or out.
The inner end of the spindle b, has a loop 65, formed upon it, into a hole in
the end of which, the end of the valve spindle c', can pass and screw into a nut
or collar, within the loop 65, which when screwed on can be prevented from
rotating by a pin passing through a hole in the screw collar and spindle.
This arrangement permits the screwed spindle b, to rotate without rotating the
valve spindle c¹, and allows the valve c, on the valve spindle to be drawn against
or pushied away from its seating to any required extent.
The valve c, is a flat faced disc, to fit steam tight upon the seating formed in
the partition a², and there are guiding ribs on the spindle to keep the valve
central when moving to and from its seating.
At the other end of the body casing a, a disc a", is screwed in fluid tight and
in a hole in the axis of this disc a piston rod or spindle d¹, fits, which forms
the stem or piston rod of a piston or diaphragm head d, which is in a recess
or cavity in the disc and against the outer side of which head a diaphragm ²,
of any suitable flexible material comes, the margins of which are held fluid tight
between the flange on the disc a, by a cover plate a', which is secured to the
disc by bolts or screws.
In a hole in the axis of the cover plate a, a nozzle d³, is screwed fluid tight,
and to this nozzle a pipe d, can be connected by a union coupling.
The compartment, in the body casing on the diaphragm side has a junction
for a pipe, leading to a central steam nozzle for live steam within the axis of
the nozzle for exhaust steam in the exhaust injector.
A nozzled, is screwed into the disc a, to communicate by a passage with the
cavity under the diaphragm head d², and a pipe de, is connected with the nozzle
to convey away any leakage past the spindle d¹.
The pressure of steam from the boiler being admitted to the compartment a³,
is constantly acting to open the valve c, but it is kept closed by the pressure of
the steam from the valve chest of the engine acting upon the diaphragm d², as

page_text: long as there is fluid pressure in the valve chest of the engine, but when the
steam or fluid pressure is shut off from the valve chest of the engine, then the
pressure of steam from the boiler forces open and passes the valve c, and thus
live steam is supplied to the exhaust steam injector when there is no exhaust
steam being supplied thereto.
When the steam or fluid pressure is admitted to the valve chest of the engine,
the valve c, is closed, and the supply of live steam to the exhaust injector is
shut off.
If the exhaust steam supply is deficient in ordinary working a sufficient sup-
plementary supply of live steam can be given by opening the valve c, by the
screwed spindle b, just to the required extent.
When the steam or fluid pressure is shut off entirely from the valve chest of
the engine the valve c, will open to give the full supply of live steam to work the
injector in the absence of exhaust steam and will shut off this extra supply when
steam is again admitted into the valve chest of the engine. If no supplemen-
tary supply of live steam is required by the exhaust steam injector in its ordi-
nary working, the supply of live steam which is to be used in place of exhaust
steam when the latter is absent, can be regulated by the screwed spindle as the
valve can be prevented from opening except to the required extent to give the
supply required, the valve by its arrangement being left to close automatically
through the action of the steam or fluid pressure in the valve chest of the engine
acting upon the diaphragm.
The outlet pipe d, Fig. 1, may be dispensed with as an outlet for leakage by
the modification of Fig. 1, as illustrated in Fig. 6.
In this fig., c, represents the valve or it may be the valve spindle when the
valve is reversed as hereinafter described.
d', is the spindle made separate from the diaphragm head d, and screwed
thereon so as to hold the central part of a diaphragm, fluid tight between its
boss and a collar, on the spindle d.
Squares, are or may be formed on the inner end of the spindle d', in order
to hold it or rotate it by a key when the head d, is being screwed on or off its
other end.
The outer margins of the smaller diaphragm d, are secured fluid tight within
the cavity of the disc a, by screws d³, passing through holes in a ring washer ",
as shown, or otherwise.
, is a port or passage to allow fluid to pass freely between the chambers at;
and the inner side of the small diaphragm, which permits full movement to
the spindle d¹.
, is or may be a passage to allow the atmosphere to freely pass to the space
between the two diaphragms & and d³.
When the pressures acting upon each diaphragm are equal, the larger area of
the diaphragm d², will move and hold the spindle d', inwards when required.
If desired, the arrangement illustrated by Figs. 1 and 2 or as modified by
Fig. 6, may be used without the spindle b, to open or close the valve c, which is
then left free to be operated by the steam or fluid pressure within the compart-
ment, and the diaphragm arrangement.
In Figs. 3 and 4 the second part of my invention is illustrated. The valve
apparatus illustrated by Figs. 1 and 2, is slightly modified and combined with a
casing in which a stop and regulating valve is formed, and in which a clack or
delivery valve for fluid from an injector or injectors is arranged.
The casing a, has a flange a³, which can be secured steam tight to the boiler
or to a pipe conveying steam from the boiler.
This flange a, has one hole or passage a", for steam from the boiler to pass,
and another hole or passage ab, for fluid from the injector or injectors to pass to
the boiler.
There is a screwed valve spindle e¹, the inner end of which has a valve e, with
a cone facing on the opposite side of it.

page_text: The spindle el, screws through a tube or bush ³, which screws fluid tight into
the casing a, and in the outer part there is a stuffing box formed round the
spindle, and at the outer end of the spindle, a hand wheel e³, is secured for
retating the screwed spindle e¹.
There is a seating for the inner end of the valve e, in the casing a*, and for
the other side on the inner end of the bush or tube e².
When the valve e, is in the position shown in Fig. 4, all steam is shut off,
when it is away from the seating on the casing a, steam can enter the casing and
pass by the passage a, to the automatic valve c, and can also pass into the tube
or bush e, and through ports e, in its sides to an annular cavity ad, in the
casing in communication with the branch a°, from the casing which has or may
have a pipe conveying steam to the supplementary live steam injector.
When the spindle e', is screwed outwards to its fullest extent the inner facing
en the valve e, comes against the seating upon the end of the tube or bush e³,
and this shuts off the steam to the supplementary live steam injector, but still
allows steam to pass to the automatic valve c.
The outlet from the compartment at, of the automatic valve c, may be in any
required direction, one being represented as an example by the branch a', from
the casing a, of the automatic valve c.
When a clack or delivery valve is to be combined in the same casing a³, as
shown in Fig. 3, it may be a ball valve or a cone valve f, on a stem guided in a
bush or hollow plug f, screwing fluid tight into the casing.
The pipe conveying the fluid delivered from the injector or injectors is coupled
with the branch a, then passes the valve f, and leaves by the hole or passage ab,
and enters the boiler.
Fig. 5, indicates how two automatic valves may be combined with one stop
valve and its casing according to the improvements described under the fourth
head of my invention.
The best arrangement of the automatic valves will depend upon its position
in relation to the exhaust and combined supplementary live steam injectors, for
instance the automatic valves c, may be on the reverse sides of the casing a*, to
that shown in Fig. 5, which is similar in every respect to that herein before
explained and illustrated by Fig. 4, except that a second automatic valve similar
to that shown in Figs. 1 and 2, and Fig. 3, (but with its valve c, reversed or
modified as shown in Fig. 6,) is combined with the outlet a°, from the casing a*,
for live steam for the exhaust and supplementary live steam injector, ah, being
the outlet branch for live steam from the automatic valve, one automatic valve
supplies and regulates the live steam when required to the exhaust part of the
exhaust injector and the other automatic valve supplies and regulates the supply
cf live steam to the supplementary part of the live steam injector. One auto-
matic valve for the exhaust injector is governed by pressure of fluid conveyed by
a pipe from the valve chest of the engine supplying the exhaust steam to the
exhaust injector acting upon its diaphragm, and the other automatic valve is
governed by fluid pressure conveyed by a pipe from the delivery passage of the
exhaust injector taken from that passage before the fluid passes the clack valve
which prevents its return to the exhaust injector.
When thus arranged the live steam to the supplementary live steam injector
is supplied as long as the exhaust injector is working properly and the pressure
of the fluid delivered from it is sufficient to keep the automatic valve c open.
In the automatic valve for this purpose the valve c, is arranged reversed to the
other, so that the pressure of live steam will shut and keep it shut when the
diaphragm (d) does not act to open it by its superior pressure and keep it open as
long as the fluid pressure at the delivery of the exhaust injector is sufficient, but
when this fluid pressure becomes insufficient or mil, then the pressure of live
steam acting upon the automatic valve closes it, and the live steam is thus cut
off from the supplementary live steam injector when the exhaust injector passing
fluid to it ceases to work,
i

page_text: 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 :
-
1. The combination and arrangement of automatic valve mechanism actuated
by a diaphragm for supplying, regulating and shutting off the supply of live
steam to an exhaust steain injector, substantially as hereinbefore described and
illustrated by Figs. 1 and 2 or when modified as illustrated by Fig. 6, of the
drawings.
2. The combination of automatic valve mechanism illustrated by Figs. 1 and 2
or as modified by Fig. 6, with a stop valve in the same casing and also with a
clack valve in the same casing substantially as and for the purpose hereinbefore
described and illustrated by Figs. 3 and 4 of the drawings.
3. The combination and arrangement of two automatic valves such as illus-
trated by Figs. 1 and 2 and as modified by Fig. 6, in or combined with a casing
for a stop valve, and also when desired with a clack valve substantially as and.
for the purpose hereinbefore described and illustrated by reference to Fig. 5 of
the drawings.
4. The combination and arrangement of automatic valves a hereinbefore
described and illustrated by Figs. 1 and 2 or when modified as hereinbefore
described and illustrated by Fig. 6 of the drawings.
Dated his Thind dow of T..1.. 1000
PETER J. LIVSEY,
Agent.