Year: 1886

page_text: Date of Application, 9th July, 1886.
Complete Left, 9th Apr., 1887.
Complete Accepted, 10th May, 1887.
I, JOHN PARTINGTON, of Water Lane Boiler Works, Sugdon Street, Bradford in
the County of York, Boiler Maker, do hereby declare the nature of this invention to
be as follows :-
This invention relates to certain improvements in the construction of fire boxes for
vertical boilers, whereby the same are strengthened, the efficiency of the boiler
increased, and the interior more accessible for examination and the removal of deposit,
than when constructed in the ordinary manner.
My improvement consists in making the fire boxes conical, in rings of varying
diameter, somewhat after the manner of the speed or driving cones in turning and
boring lathes, but with curved flanges between the several rings. The largest ring at
the bottom of the fire box is rivetted to the boiler shell, the diameter of the fire box
being reduced from the bottom by a series of rings, to the top or crown, to which a
plain or a conical ringed flue tube may be attached, or formed along with the
fire box.
The plain parts or rings of the fire box between the curved flanges or steps, may be
parallel or slightly conical, and of such depth, that the flanging between the respective
rings are only a short distance apart, or the rings may be sufficiently deep, that cross
tubes or rings may be welded or rivetted thereto, similar to those placed in fire boxes
of the ordinary construction.
By making fire boxes in the manner described, the plate is considerably strengthened
by the steps or curved flanges from one ring to another, and by the fire box being of
less diameter at the top than below, better facility is obtained for examination of the
interior and the cleaning away of deposit from the plates.
JOHN WAUGH,
Agent.

page_text: Improvements in the Construction of Fire Boxes for Vertical
Boilers.
I, JOHN PARTINGTON, of Water Lane Boiler Works Sugden Street, Bradford in the
County of York, Boiler Maker, 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 :-
This invention relates to certain improvements in the construction of fire boxes for
vertical boilers whereby the same are strengthened the efficiency of the boiler increased
and the interior more accessible for examination repairing.and removal of deposit than
when constructed in the ordinary manner.
My improvement consists in making the fire boxes conically in rings of varying
diameters somewhat after the manner of the speed or driving cones in turning and
boring lathes but with curved flanges between the several rings which may be formed
with one plate or each ring and flange may be made separately and jointed together
with rivets. The largest ring at the bottom of the fire box is rivetted to the boiler
shell the diameter of the fire box being reduced from the bottom by a series of rings
to the crown to which a plain or conical ringed flue tube may be attached.
The plain rings of the fire box between the curved flanges or steps may be made
parallel or slightly conical and of such a depth that the flanging between the respective
rings are only a short distance apart or the rings may be sufficiently deep to allow of
cross tubes being welded or rivetted thereto similar to those placed in ordinary fire
boxes.
In order to more fully describe and illustrate my invention I have appended hereto
drawings in which Fig. 1 represents a sectional elevation of a vertical boiler fitted with
my improved fire box also in section and Fig. 2 is an elevation of a fire box detached
from the boiler.
The fire box A is formed somewhat conical and is preferably composed of a series of
belts or rings B of varying diameters somewhat similar to the driving cones used in
lathes and similar machines but with curved flanges C between connecting the
respective belts or rings B.
The shell of a fire box may be made from one plate which I heat and place same
between dies, applying sufficient hydraulic or other pressure to the same to bend and
shape the heated plate to the configuration of the said dies; or the heated plate may
be rolled between rolls to form the necessary rings and flanges and welded or otherwise
jointed by rivetting the portion of the plate where the opening D into the fire box is
to be cut being embossed for say the depth of two belts as at E in Fig. 2.
The largest ring F at the bottom of the fire box is rivetted to the boiler shell G and
the space between the fire box opening D and shell is made up by a distance piece as
in vertical boilers of the ordinary construction. The plain parts or belts or rings B
between the curved connecting flanges C may be parallel or slightly conical and of

page_text: such depth that, the flanging C is only a short distance apart; or the belts or rings B
may be sufficiently deep to allow of cross tubes or water spaces H being rivetted or
welded thereto as is the case with fire boxes of the ordinary construction.
By making fire boxes in the manner described the plate composing the same is
considerably strengthened by the reduction in the length of the plain portion of the
fire box by the formation of the belts or rings B and the support given to the same by
the curved flanges C; and the fire box being less in diameter at the top than below,
better facility is obtained for examination repairing and the clearing away of deposit
from the plates in the interior.
The crown of the fire box J may be formed from the fire box plate, or separately and
welded or rivetted thereto; and the flue tube K may be plain or conical ringed similar
to the fire box is attached to the crown J and to the crown of the boiler in the usual
manner.
The several rings B composing the fire box may be made in sections having a
flange C on each edge of the plates bent in opposite directions for rivetting together as
shewn by Fig. 3 which represents a portion of one side of a fire box: and as will be
easily understood by persons conversant with the construction of boilers that, sections
of coned flanged fire box made according to my invention may be placed together and
rivetted as shewn by sectional view Fig. 4, and thus form a long flue or fire box
suitable for a tall vertical or long horizontal boiler.
Having now particularly described and ascertained the nature of my invention and
in what manner the same is to be performed, I declare that what I claim is :-
Conical fire boxes made in rings of varying diameters having flanges C between
them all arranged substantially in the manner and for the purpose set forth.