IMPROVEMENTS IN APPARATUS FOR FEEDING BOILERS OR FOR FORCING WATER OR OTHER FLUIDS."
Year: 1864

page_text: LETTERS PATENT to Joseph Fletcher, of Droylesden, near Manchester, in
the County of Lancaster, Engineer, and Henry Bower, of Halifax, in the
County of York, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
FEEDING BOILERS OR FOR FORCING WATER OR OTHER FLUIDS."
PROVISIONAL SPECIFICATION left by the said Joseph Fletcher and
Henry Bower at the Office of the Commissioners of Patents, with their
Petition, on the 15th June 1864.
We, JOSEPH FLETCHER, of Droylesden, near Manchester, in the County of
Lancaster, Engineer, and HENRY BOWER, of Halifax, in the County of York,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS POR FEEDING BOILERS OR FOR FORCING WATER OR OTHER FLUIDS,"
to be as follows:-
This Invention relates to further improvements in injectors or apparatus
for which Letters Patent were granted to us, the said Joseph Fletcher and
Henry Bower, dated 3rd February 1868, No. 304, and these improvements
consist in constructing and arranging the apparatus and applying parts thereto
in such manner that the supply of both water and steam may be regulated
simultaneously or by one motion; also that tallow, oil, or other matter or
substance capable of being liquefied by heat may be supplied thereby to

page_text: boilers.
We construct the central pipe or steam passage with a stuffing box
at the inlet end, and introduce a spindle extending along the centre of the
said passage.
A screw nut or screw collar is fixed on the spindle, which fits
into threads of a tube formed to slide in a stuffing box in the other end of the
passage to the injection chamber by the turning of the spindle. On the end
of the spindle is a conical plug, and the corresponding end of the slideable
tube is also conical, so that by sliding the tube on the spindle in one or the
other direction more or less opening may be given betwixt the plug and the
tube, and the contrary in the injection chamber. The plug and conical end
of the tube we prefer to make polygonal in section, and which may be either
straight or twisted. The injection chamber is in form of a double cone, the
neck or narrow part betwixt the two cones or conical ends being perforated,
and a chamber is formed outside with a vacuum valve at one part, and a
screwed opening at another, in which a tallow or grease cup may be fixed
when required for supplying such matters to boilers, or when not may be made
up with a screw plug. Water is supplied by a branch pipe into and thence
through a spiral passage, as heretofore, to the injection chamber, and steam
by another branch pipe into and through the central tube and betwixt the
conical plug and the conical end of the slideable tube.
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 15th December 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
FLETCHER, of Droylesden, near Manchester, in the County of Lancaster,
Engineer, and HENRY BOWER, of Halifax, in the County of York, send
greeting.
.
x
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of June, in the year of our Lord One
thousand eight hundred and sixty-four, in the twenty-seventh 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, adminis-
trators, 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,

page_text: exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
APPARATUS FOR FEEDING BOILERS OR FOR FORCING WATER OR OTHER FLUIDS," upon
the condition (amongst others) that we, the said Joseph Fletcher and Henry
Bower, our executors or administrators, 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 calendar 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 accompanying Sheets of Drawings (that
is to say):-
This Invention relates to further improvements in injectors or apparatus for
which Letters Patent were granted to us, the said Joseph Fletcher and Henry
Bower, dated 3rd day of February 1863, No. 304, and these improvements
consist in constructing and arranging the apparatus and applying parts thereto
in such a manner that the supply of both water and steam may be regulated
simultaneously or by one motion; also that tallow, oil, or other matter or
substance capable of being liquified by heat may be supplied thereby to
boilers. We construct the central pipe or steam passage with a stuffing box
at the inlet end, and introduce, a spindle extending along the centre of the
said passage. A screw nut or screw collar is fixed on the spindle, which fits
into threads of a tube formed to slide in a stuffing box on the other end of
the passage to the injection chamber by the turning of the spindle. On the
end of the spindle is a conical plug, and the corresponding end of the slidable
tube is also conical, so that by sliding the tube on the spindle in one or the
other direction more or less opening may be given betwixt the plug and the
tube, and the contrary in the injection chamber. The conical end of the tube
we prefer to make polygonal in section, and which may be either straight or
twisted. The injection chamber is in form of a double cone, the neck or
narrow part betwixt the two cones or conical ends being perforated, and a
chamber is formed outside with a vacuum valve at one part and a screwed
opening at another, in which a tallow or grease cup may be fixed when
required for supplying such matters to boilers, or when not so used may be
made up with a screw plug. Water is supplied by a branch pipe into and
thence through a spiral passage, as heretofore, to the injection chamber, and

page_text: steam by another branch pipe into and through the central tube and betwixt
the conical plug and the conical end of the slidable tube.
In order that this Invention may be clearly understood, we now give
reference to an accompanying Sheet of Drawings, wherein Fig. 1 represents
the apparatus in elevation, Fig. 2 is a longitudinal section, and Fig. 8 is a
cross section taken at the dotted line A, B.
The general features of this apparatus are somewhat similar to the apparatus
for which Letters Patent were granted to us, dated February 3rd, 1863,
No. 304, but in the present improvements the inlet pipe C for steam is placed
at right angles to the central pipe or steam passage C', so that we are enabled
to provide a stuffing box D, through which a spindle E passes, and extends
centrally along the steam passage. The inner end of this spindle forms a
conical plug F, fitting the conical end of a tube G, which is capable of sliding
in the stuffing box H. On the spindle is fixed a screw nut I, the threads of
which fit into corresponding threads in the tube G. On the outer end of the
spindle is a hand wheel. or handle, by which it may be turned right or left,
the turning of which causes the tube to slide in or out, thereby giving more or
less of an opening or space betwixt the plug and the tube for the passage of
steam. The tube thus moved in or out will at the same time produce more
or less space betwixt the outside of the conical tube and the conical end of
the injection chamber. The conical end of the tube G is formed polygonal,
as shewn at Figs. 4 and 5, also by preference twisted, as shewn at Figs. 6
and 7, so as to produce a twist of the water, or rather to accomodate the
natural tendancy of a stream of water to twist. Water is supplied at the
inlet pipe J, thence passing along the spiral passage K to the injection
chamber, as heretofore. The neck or narrow part of the injection chamber M,
on one side of which is a vacuum valve N, and on the other is an opening
filled by a screw plug, but in which a tallow cup may be screwed when
required. It will now be seen that by turning the handle P in one direction
an increased supply of steam with a decreased supply of water may be given
simultaneously, and by turning it in the other direction a decreased supply of
steam with an increased supply of water will be effected, which can be
adjusted or regulated to the greatest nicety. Instead of the spindle being
capable of turning, and having a screw nut to work in threads of the slidable
tube, it may be a fixture, and be without a nut, and without threads in the
tube, but having a rack thereon capable of being worked by a pinion fixed ou
a spindle passing laterally through the barrel of the injector; or the slidable
tube may have a lug thereon with a slot hole for an eccentric to work in,
which may be fixed on a spindle passing laterally through; or other similar

page_text: means may be adopted for working the slidable tube. Fig. 8 is a section of
a clack valve and coupling box to be used when applying this injector to
boilers.
Having thus fully described the nature of the said Invention, and shewn the
manner in which the same is to be performed or put into practical operation,
we would have it understood that what we claim as of our Invention is,-
Firstly, the constructing, combining, and arranging the parts of injectors or
apparatus employed for feeding boilers, or raising and forcing water or other
liquids or fluids, in manner substantially as herein described and illustrated.
Secondly, the application and use of a conical-ended spindle or plug in
combination with a conical-ended tube, either straight or twisted, and capable
of sliding or being moved and adjusted from without the apparatus, so as
to enable the attendant to regulate the supply of both water and steam
simultanecusly or by one and the same motion.
Thirdly, the constructing of injectors in such manner as to enable a cup
to be applied for the supply of tallow or other lubricating matters to boilers
or steam generators, and for other similar purposes, as such improvements are
herein described and illustrated in the accompanying Sheet of Drawings.
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 Thirteenth day of December, in the year of our Lord One
thousand eight hundred and sixty-four.
Signed, sealed, and delivered by the
within-named Henry Bower, in the
presence of
WM. TASKER,
HENRY BOWER. (L.S.)
Patent Agent,
Halifax.