IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH WATER
Year: 1885

page_text: I JAMES GRESHAM, of the firm of Gresham and Craven, of Craven Iron Works,
Salford, in the County of Lancaster, Engineers, do hereby declare the nature of the
said invention for "IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS
WITH WATER," to be as follows:-
The object of my invention is to combine the apparatus of an Injector, and parts
connected therewith so as to be attached by means of one fixing to the boiler to be
fed with water, part of which apparatus is or may be used when the Injector or
other apparatus employed for forcing the water into the boiler, is at a distance from
the apparatus forming the junction with the boiler.
My invention consists in forming a casting with a flange by which it can be
attached to the shell of the boiler steam tight, this casting having two openings to
come opposite the ends of two pipes leading from the shell of the boiler into its
interior one pipe into the steam space and the other to the desired position at which
the feed water is to be discharged into the boiler.
In the said casting opposite the opening for the pipe for steam, a valve seating
is formed for a cone valve, the part forming which having also a cone valve on the
reverse side which can come against a seating formed on the end of a bush screwed
steam tight into the casting. This double cone valve is formed on the end of a
spindle which screws through a thread in the interior of the said bush and there is
a handle fixed on the exterior end of the spindle by which it can be rotated to
screw the valve against its seating in the casing to shut off the steam and also screw
the reverse cone valve against the seating on the said bush when steam is required
to be turned on, thus preventing the escape of steam past the spindle when a
stuffing box is not used.
The end of the cone valve for shutting off the steam has a short cylindrical part
which is arranged to leave a certain annular space between it and the cylindrical
opening for steam so that when the cone valve is first partly screwed from its
seating the full outlet for steam is not given, but only sufficient to properly start
the injector, but when the screw valve spindle is fully screwed out, the full opening
for steam is given for working the injector -There is a branch from the steam valve
of the casing which forms a junction or connection with the steam cone of the

page_text: Injector, when combined directly with. or forming part of the casing in which case
the injector so combined is constructed according to the invention or a modification
thereof described in my Complete Spec N° 7116 in Application for a Patent dated
2nd May 1884, or in my Provisional N" 10,475 in Application for a Patent dated
23 July 1884. Or the junction with the casing is connected with a pipe leading
to an injector or donkey pump to supply the same with steam.
In connection with the other opening for water or combined steam and water, in
the said casting, there is a winged or other valve to close against the return of
fluid from the boiler, and the casting has also a junction or branch from this
opening which is connected directly with the delivery branch from the Injector or
with a pipe from the delivery branch of an injector or pump when at some distance
away (say below the foot plate of a Locomotive) from the said casting which is
most convenient in position, in the case of Locomotives, when attached to the boiler
some distance above the foot plate.
Dated hil
1047

page_text: 1 JAMES GRESHAM of the firm of Gresham and Craven, of Craven Iron Works,
Salford, in the County of Lancaster, Engineers, 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:—―
+
The object of my invention is to combine the apparatus of an Injector, and parts
connected therewith, so as to be attached by means of one fixing to the boiler to be
fed with water, part of which apparatus is or may be used when the Injector or
other apparatus employed for forcing the water into the boiler, is at a distance
from the apparatus forming the junction with the boiler.
My invention consists in forming a casting with a flange by which it can be
attached to the shell of the boiler, steam tight, this casting having two openings to
come opposite the ends of two pipes leading from the shell of the boiler into its
interior, one pipe into the steam space and the other to the desired position at
which the feed water is to be discharged into the boiler.
In the said casting opposite the opening for the pipe for steam, a valve seating is
formed for a cone valve, the part forming which having also a cone valve on the
reverse side, if desired, which can come against a seating formed on the end of a
bush screwed steam tight into the casting.
This double cone valve is formed on the end of a spindle which screws through
a thread in the interior of the said bush and there is a handle fixed on the exterior
end of the spindle by which it can be rotated to screw the valve against its seating
in the casing to shut off the steam and also screw the reverse cone valve against
the seating on the said bush when steam is required to be turned on, thus if
desired preventing the escape of steam past the spindle when a stuffing box is
not used.
The end of the cone valve for shuiting off the steam has a short cylindrical part
which is arranged to leave, a certain annular space between it, and the cylindrical
opening for steam so that when the cone valve is first partly screwed from its
seating the full outlet for steam is not given, but only sufficient to properly start
the injector, but when the screw valve spindle is fully screwed out, the full opening
for steam is given for working the injector. There is a branch from the steam
valve of the casing which forms a junction or connection with the steam cone of the
Injector, when combined directly with or forming part of the casing in which case
the Injector so combined is constructed by preference according to the invention or
a modification thereof described in my Complete Specification No 7116 of Letters
Patent dated 2nd May 1884 or, in my Complete Specification N° 10,475 of Letters
Patent dated 23rd July 1884. Or there are junctions with the casing each having
a pipe leading to an Ejector and Injector or donkey pump to supply the same
with steam.
In connection with the other opening for water or combined steam and water,
in the said casting there is a winged or other selfacting valve to close against
the return of fluid from the boiler, and the casting has also a junction or branch
from this opening which is connected directly with the delivery branch from the

page_text: Injector, or with a pipe from the delivery branch of an injector or pump when ai
some distance away (say below the foot plate of a Locomotive) from the said
casting which is most convenient in position, in the case of Locomotives, when
attached to the boiler some distance above the foot plate.
Fig. 1 is a section in a line with the axis of the screwed valve spindle anda fig. 2
is a section at a right angle to fig. 1 on the line A-B fig. 1 of one modification of
my invention
a is a casting having a flange a' which is secured to the boiler
shell This casting has an opening a which comes or may come directly opposite
a hole into the steam space of the boiler or opposite one end of a pipe secured in
the hole in the shell of the boiler, the other end of the pipe passing within the
boiler to the desired position to take steam therefrom.
The said opening a² in the casting (a) is formed as a cone valve facing or seating
and the cone valve b on the end o the spindle & is formed to suit the seating and
with a cylindrical extension which will enter the cylindrical part of the valve
seating, as shown, and nearly fill the same, but not so as to be steam tight.
The spindle
has a screw thread formed upon it which screws through a thread
formed in a hush a³ screwed into the casing a steam tight.
This bush a at its outer end forms a packing gland a' (as shown) for the
spindle to make it steam tight and the spindle lias a handle or hand wheel 6,3
upon it for screwing the valve in and out.
From the casting there is a branch as with which a pipe a is connected by a
coupling which pipe leads to the steam branch of the Injector or pump or other
apparatus to be supplied with steam.
The spindle valve is shown shut, and when the injector is to be started it is
screwed out partly until the cone part of the valve is away from its seating when
steam will pass the cylindrical part in the required quantity to start the injector
to work, when the valve spindle is further screwed out to give the full supply of
steam to the injector or other apparatus.
The said casting a has a part in which a valve chamber a is formed having a
seating for a selfacting cone lifting valve c arranged as shown. The water from
the injector or pump enters the branch a by a pipe a", passes the valve c which
closes against any return and then passes out from the valve chamber a' through a
passage and hole (indicated by a dotted circle) in the flange of the casting to a pipe
one end of which is connected with the shell of the boiler, the other end of the pipe
discharging the water at the desired position in the boiler.
Fig. 3 is a section corresponding to fig. 1 and fig. 4 is a section at a right angle
thereto on the line A-B fig. 3 of a modification of the apparatus shown by figs. 1
and 2. In this modification the steam valve b gives the supply of steam to both
the Injector and to the combination Ejector used in vacuum brakes for railway
vehicles.
The valve on the spindle is double coned.
In the position in which it is shown in fig. 3 the steam is entirely shut off but
when this apparatus is used on a Locomotive having the combination Ejector, the
steam is required to pass to the Ejector at all times when the brakes are likely to
be used.
In using the modification shown by figs. 3 and 4-The valve spindle is screwed
outwaris until steam is allowed to pass to the passage a' in the casting having a
connection with the pipe leading to the Ejector.
The inside of the cone valve bis or may be thus screwed against a seating
formed on the end of the bush a through which the spindle
screws.
This bush a has a series of holes a through its sides which will allow steam to
pass to an annular space all in the casting that communicates with a passage as.
connected by a pipe a with the steam branch of the Injector.
When the valve bis screwed close against the seating on the end of the bush a³
no steam can pass to the Injector but when it is screwed so that the cone facing on
the valve comes away from its seating the cylindrical part 2 on that side of the
double valve partly fills the opening and only allows enough of steam to pass to

page_text: start the Injector and afterwards the valve & may be screwed back to give the full
supply of steam to the Injector.
The other parts of the modification shown by figs. 3 and 4 and which have not
been referred to are the same or similar to those shown and described in reference
to figs. 1 and 2.
Fig. 5 is a section taken in the same plane as fig. 4 of the parts heroinbefore
described and shown by figs. 3 and 4 combined with an Injector the parts shown by
fig. 4 forming part of fig. 5.
It will he seen that the steam branch d and delivery branch e of the Injector are
connected by right and left handed screw couplings with the branches and a on
the casting (though an oblong flange on the injector and casting branches and a
or other mode of connection may be used instead if preferred) and the water supply
branch and overflow branch of the Injector are connected with pipes leading to
the cistern or water supply in one case, and to the outlet for overflow in the other
case The water branch of the injector has or may have a cock formed in it
for regulating or turning on or shutting off the supply of water-The injector is or
may be of any suitable construction but I prefer and have shown one similar
to those illustrated by figs. 4 and 5 or a modification thereof described in my
said Complete Specification N° 10,475 of Letters Patent granted to me dated the
23rd day of July 1884.
If desired the casting a and the casing part of the Injector may be formed in one
piece or casting.
The parts shown in fig. 5 not referred to have the same letters of reference
thereon as those on fig. 4 of the drawings hereunto annexed.
The construction of the Injector will be readily understood, being the steam
cone, the fixed part of the combining cone, the selfacting part of the combining
cone, and the discharging cone.
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 parts for supplying steam from a Boiler
to an Injector or donkey Pump and for conveying the water therefrom to the boiler
substantially as hereinbefore described and illustrated by figs. 1 and 2 of the
drawings.
2. The combination and arrangement of parts for supplying steam from a Boiler
to an Ejector Injector or donkey Pump and conveying the water from the Injector
or donkey Pump to the boiler substantially as hereinbefore described and illustrated
by figs. 3 and 4 of the drawings.
3. The combination of the parts herein before described and shown by figs. 1
and 2 or figs. 3 and 4 with an Injector substantially as herein before described and
illustrated by lig. 5 of the drawings.
Dated this thirteenth day of January 1886.
PETER J. LIVSEY,
Agent.