IMPROVEMENTS IN INJECTORS FOR FEEDING STEAM GENERATORS, OR FOR OTHER PURPOSES
Year: 1878

page_text: LETTERS PATENT to John Henry Storey, of Manchester, in the County of
Lancaster, and James Westley, of Salford, in the same County, for the
Invention of IMPROVEMENTS IN INJECTORS FOR FEEDING STEAM GENERATORS,
OR FOR OTHER PURPOSES.”
"
Sealed the 22nd November 1878, and dated the 7th June 1878.
PROVISIONAL SPECIFICATION left by the said John Henry Storey and
James Westley at the Office of the Commissioners of Patents on the 7th June
1878.
JOHN HENRY STOREY, of Manchester, in the County of Lancaster, and JAMES
WESTLEY, of Salford, in the same County. "IMPROVEMENTS IN INJECTORS FOR
FEEDING STEAM GENERATORS, OR FOR OTHER PURPOSES."
Our Invention relates to the injectors adapted to be employed in the supply of
water to steam generators or to be otherwise employed in the forcing or raising and
forcing of water or fluids.
When constructing an injector in accordance with our Invention we form a
portion of the water cone, that is to say, of the conical passage into which the jet
of steam is delivered in a movable piece or part, in order that such portion can be
withdrawn or moved away so as to provide an enlarged overflow passage or
chamber into which the jet of steam can be delivered.
In one arrangement the said portion of the passage is formed in a block which is
fitted to slide in a recess or chamber formed in the injector body. The said block
is arranged to be slid to and fro by means of a screw and handle or hand wheel, or
by means of a rack and pinion, or of a lever, or by other suitable means, When the
said block is withdrawn, that is to say, is moved into one position, and the steam
inlet opened, the water is lifted or drawn into the injector, and is discharged through
the overflow pipe or passage.
When the flow of water is obtained, the block is quickly moved into position to
complete the cone or passage, in order that the jet of water may be forced forwards

page_text: say, for example, into the steam generator. When so constructed the injector may
be used to lift its water without the use of the ordinary "needle" or inner regulating
spindle, and we therefore dispense with the said needle in simple forms of injectors,
although we may employ the said needle in cases wherein it is considered to be
advisable or necessary.
We may form the portion of the conical passage in a plug, or cylinder, or cone
which is arranged to be partially rotated, so as to bring a larger overflow passage
into communication with the steam jet, the moveable part in such a case acting
similarly to a three-way cock.
In some cases, or in all cases, we arrange the steam nozzle to screw into the body
for the adjustment of the water supply, the steam pipe being coupled to the outer
end of the said nozzle which is provided with a suitable hand wheel.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Henry Storey and James Westley in the Great Seal Patent
Office on the 7th December 1878.
JOHN HENRY STOREY, of Manchester, in the County of Lancaster, and JAMES
WESTLEY, of Salford, in the same County. "IMPROVEMENTS IN INJECTORS FOR
FEEDING STEAM GENERATORS, OR FOR OTHER PURPOSES."
Our Invention relates to the injectors adapted to be employed in the supply of
water to steam generators, or to be otherwise employed in the forcing or raising
and forcing of water or fluids.
When constructing an injector in accordance with our Invention we form a
portion of the water cone, that is to say, of the conical passage into which the jet
of steam is delivered, in a movable piece or part, in order that such portion can be
withdrawn, moved, or turned, so as to provide an enlarged overflow passage or
chamber into which the jet of steam can be delivered.
And in order that our Invention may be readily described and fully understood,
we have attached hereunto a Sheet of Drawings marked with letters of reference, to
which Drawings we will now refer.
Fig. 1, drawn partly in section, represents a simple form of injector constructed
in accordance with our Invention, and Fig. 2 represents the lower end of the same
injector with the outlet end of the water cone moved out of action.
In Fig. 1a is the body or shell of the injector, which is formed with a branch b
for connection with the water supply pipe, and with a branch c for connection with
the overflow pipe as is usual.
The steam cone d is continued outwards through the end of the body a, and is
provided with a hand wheel e. A screw thread is formed upon this extension of
the cone, and a corresponding internal thread is formed in the body, so that by
turning the said hand wheel the area for the flow of water between the end of the
said cone and the circumference of the conical water passage f is increased or

page_text: A
decreased according as the hand wheel is turned in one direction or the other.
tube g, which serves as an inlet for steam, is fitted in a gland or stuffing box h,
which is formed in the outer end of the cone extension, and the said tube is formed
with a suitable flanch for connection with the steam supply pipe.
The arrangement permits of the cone being turned without interfering with the
steam connection.
The arrangements for effecting the steam connection may be varied as found or
considered to be most convenient or suitable.
A conical plug i is fitted into a hole formed in the body a, in a similar manner to
the plug of an ordinary tap or cock. In the said plug is formed a conical passage k,
and a recess is also cut or formed in one side of the said plug. The said plug is
provided with a suitable handle indicated by the dotted lines at m, in order that it
may be readily and quickly rotated into one or the other of the two positions
represented in Figs. 1 and 2.
When the plug is in the position represented in Fig. 2, the recess i establishes a
communication between the passage f and the overflow passage c. The injector is
set to work when the plug is in this position. The water supply is admitted and
the steam supply valve is opened. The steam then escapes through the overflow
passage, and by its inductive or exhaustive action raises the water if the water
supply has to be lifted. So soon as the water overflows freely through the passage c
the plug i may be partly rotated into the position represented in Fig. 1.
It will be seen that the passage k in Fig. 1 is in a direct line with the passage f,
and constitutes an extension thereof, the two parts fand k together forming the
complete water cone. The water will be raised or inducted by the steam, and will
be injected through the passage n which is in communication with a pipe leading
to the boiler as is usual.
Fig. 3 illustrates a modification which may be made in the apparatus. In this
example the passage k, forming the lower part of the water cone, is formed in a block
or cylinder o, which is fitted to slide to and fro in a chamber formed by an extension
of the overflow passage. The block is coupled to a lever handle p by means of
which the said block may be slid to and fro in the said chamber. The block is
represented in the position it would be in when the injector would be at work.
To start the injector the block is slid towards the right hand in the Drawing, so
that the end of the block is withdrawn past the end of the passage f, when the
water can escape freely to the overflow passage, the injector being started by
quickly sliding the block inwards into the position represented.
Any excess of water not passing into n escapes through a space left between the
mouths of the water cone, and of the passage n into the overflow passage
as is usual, the flow of such excess being arrested by turning the regulating
wheel e.
In lieu of the hand lever other means may be employed to slide or move the block
to and fro, as, for example, a screw and handle or hand wheel, or a rack and pinion
may be employed for the purpose.
In the simple form of injector illustrated we have dispensed with the
ordinary needle or inner regulating spindle, as we have not found it necessary to
the efficient working of the injector, but we may employ such needle or regulating
spindle in cases wherein it is considered to be necessary or advisable.
Having now fully set forth and indicated the nature of our said Invention, and
the manner in which we carry the same into practical effect, we would have it to
be understood in conclusion that we claim,―
First. The apparatus constructed and acting substantially as and for the
purpose set forth and indicated herein-before, and in and by the accompanying
Drawings.
"
in a plug which can be
Secondly. Forming a portion of the "water cone
partially rotated, substantially as and for the purpose set forth and indicated.
Thirdly. Forming a portion of the "water cone
"
in a block or part which

page_text: can be slid to and fro, substantially as and for the purpose set forth and
indicated.
And, lastly. Forming a portion of the "water cone" of an injector in a part
which can be turned or moved so as to deflect the water or permit of the free
escape of the inducted water into the overflow passage to facilitate the starting
of the injector.
In witness whereof, we, the said John Henry Storey and James Westley,
have hereunto set our hands and seals, this Sixth day of December, in the
year of our Lord One thousand eight hundred and seventy-eight.
Signed and sealed by the said John
Henry Storey and James Westley
in the presence of
HUGH GRANT,
Clerk to Edward K. Dutton,
Agent to the Patentees,
St. Ann's Churchyard,
Manchester.
JOHN HENRY STOREY. (L.S.)
JAMES WESTLEY.
(L.S.)