AN IMPROVED INJECTOR OR APPARATUS FOR FEEDING BOILERS WITH WATER
Year: 1863

page_text: LETTERS PATENT to Joseph Fletcher, of Droylesden, near Manchester,
Engineer, and Henry Bower, of Halifax, in the County of York, for the
Invention of "AN IMPROVED INJECTOR OR APPARATUS FOR FEEDING BOILERS
WITH WATER."
Sealed the 31st July 1863, and dated the 3rd February 1863.
PROVISIONAL SPECIFICATION left by the said Joseph Fletcher and
Henry Bower at the Office of the Commissioners of Patents, with
their Petition, on the 3rd February 1863.
We, JOSEPH FLETCHER, of Droylesden, near Manchester, Engineer, and
HENRY BOWER, of Halifax, in the County of York, do hereby declare the
nature of the said Invention for "AN IMPROVED INJECTOR OR APPARATUS
FOR FEEDING BOILERS WITH WATER," to be as follows:-
This injector consists of one pipe coiled spirally around another pipe, or of
a pipe having a straight passage through its centre, and a crust sufficiently
thick to admit of a spiral passage being formed therein around the central
passage. The spiral passage opens at one end into a water supply chamber
and the other into a discharge or injection chamber, which is to be attached to
the ordinary feed pipe of a boiler. The straight passage is connected at
the water chamber end to a pipe which opens to the steam chamber of the
boiler, and the other end terminates in the discharge or injection chamber at

page_text: a point near to aud concentrically with the outlet or orifice of the feed pipe.
The apparatus is provided with taps or valves for regulating the flow of steam
and water.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Fletcher and Henry Bower in the Great Seal
Patent Office on the 3rd August 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPHI
FLETCHER, of Droylesden, near Manchester, Engineer, and HENRY BOWER,
of Halifax, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of February, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Joseph Fletcher and Henry Bower, Her special licence that we, the
said Joseph Fletcher and Henry Bower, our executors, administrators, and
assigns, or such others as we, the said Joseph Fletcher and Henry Bower,
our executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "AN IMPROVED INJECTOR OR APPARATUS
FOR FEEDING BOILERS WITH WATER," upon the condition (amongst others) that
we, the said Joseph Fletcher and Henry Bower, our executors or adminis-
trators, by an instrument in writing under our, or their, or one of our or their
hands and seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calen-
dar months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Joseph Fletcher and Henry Bower, do
hereby declare the nature of our said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement, and the accompanying Sheet of Drawings, that is to say:
This injector consists of one pipe coiled spirally around another pipe, or
of a pipe having a straight passage through its centre, and a crust sufficiently
thick to admit of a spiral passage being formed therein around the central
passage. The spiral passage opens at one end into a water supply chamber,

page_text: and the other into a discharge or injection chamber, which is to be attached
to the ordinary feed pipe of a boiler. The straight passage is connected at
the water chamber end to a pipe which opens to the steam chamber of the
boiler, and the other end terminates in the discharge or injection chamber at
a point near to and concentrically with the outlet or orifice of the feed pipe.
The apparatus is provided with taps or valves for regulating the flow of steam
and water.
The nature and construction of this apparatus, and the manner in which
the same is to be applied in practice, will be readily understood by reference
to the accompanying Sheet of Drawings, where Fig. 1 is a longitudinal section
thereof, and Fig. 2 is a cross section taken through the line A, B, in Fig. 1;
C, is the central pipe or steam passage, which is formed at one end to fix to
a pipe connected with the steam dome or steam chamber of a boiler, the other
end is furnished with a conical jet D, which is of suitable size in its opening
or outlet, and a variety of different sizes of jets may be adapted thereto; E is
the spiral pipe or water passage, which runs spirally around the other pipe,
and terminates in a conical chamber F, which has an outlet concentric with the
steam outlet, and also to the discharge pipe or injection chamber H. The
apparatus is screwed or may be provided with a flange so as to be connected
at this end to the ordinary feed pipe of a boiler. The conical outlets or steam
and water jets D and F can be set or adjusted by screwing them in or out; I
is a "pet pipe" or overflow pipe.
The action of the apparatus is as follows:-When steam is applied or
turned on to the central pipe C, and cold water admitted to the spiral pipe E
at the entrance B, the steam sucks or draws the water in, and for a very short
time steam blows out at the "pet pipe "J, a vacum valve is applied to this pipe,
which, as the steam becomes condensed, closes and stops the outflow of steam
the water still passing up the spiral pipe E, which by the time it gets to the
conical jet D, it becomes hot or warm enough to be driven by the steam
through the feed pipe into the boiler.
This apparatus can be applied, with very little modification and adaptation
of the parts, either to locomotive, marine, or stationary boilers, and it is also
applicable as a force punip on ship board, in breweries, distilleries, dye-houses,
and for other purposes or places where a pump is required, and especially where
there is no steam engine or other motive power engine to work an ordinary
pump. It will be understood that the quantities and proportions of steam
and water let into the respective pipes are regulated by taps or valves.
Having thus fully described the nature of our said Invention, and the
manner in which the same is or may be performed or put in practice, we

page_text: would have it understood that we do not confine ourselves to the particular
construction and arrangement of the parts as herein set forth, but what we
claim as of our Invention is, the constructing injectors or apparatus for feeding
boilers, or for forcing water or other fluids, in manner substantially as herein
shewn and described.
In witness whereof, I, the said Henry Bower. for and on behalf of
myself, and the said Joseph Fletcher, have hereunto set my hand
and seal this First day of August, One thousand eight hundred and
sixty-three.
Signed, sealed, and delivered by the
within-named Henry Bower in
the presence of
W. TASKER,
Patent Agent,
Halifax.
HENRY BOWER. (L.S.)