Year: 1887

page_text: Date of Application, 13th Oct., 1887
Complete Left, 27th June, 1888
Complete Accepted, 27th July, 1888
I, JOHN JOSEPH TINKER of 89 Ashton Road Newton Hyde (near Manchester) in the
County of Chester, Boiler Maker do hereby declare the nature of this invention to be
as follows:-
My Invention relates to vertical multitubular steam generators with an internal fire-
box beneath the tubes and has for its object to provide an arrangement by which a very
efficient distribution of the products of combustion is obtained over the heating surfaces
and through the tubes so that economy of fuel and rapidity of steam generation are
effected.
According to my Invention I arrange flues one above or at a higher level than the
other inside the boiler and amongst the tubes in the waterspace above the fire-box the
lower flue being in communication with the fire-box and the upper flue being in
communication with the chimney. At each end of these flues and in communication
therewith is a duplex chamber with which also the tubes communicate they crossing
from one chamber to the other through the water space. Each said duplex chamber
is divided by a partition into two compartments one being a combustion chamber and the
other a smoke box. The connections of the flues and tubes with these chambers are such
that the bottom flue communicates with the combustion division of the chamber on each
side and the upper flue communicates with the smoke box division of the chamber on each
side and the tubes cross from the combustion divisions of the chambers on each side to
the opposite smoke-boxes.
In operation the products of combustion pass from the furnace into the lower flue
and there divide and pass in opposite directions into the two combustion divisions of
the end chambers and pass therefrom through the tubes into the smoke box divisions
of the said chambers on each side and therefrom into the upper flue and into the
chimney. The communications of the fire box and the chimney with the two flues are
preferably in the vertical axis of the boiler.
The boilers described can be constructed very conveniently in sections for ease of
access and inanipulation.

page_text: Improvements in Vertical Steam Generators.
1 JOHN JOSEPH TINKER of 89 Ashton Road Newton Hyde (near Manchester) in the
County of Chester 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:-
My Invention relates to vertical multitubular steam generators with an internal fire
box beneath the tubes and has for its object to provide an arrangement by which a
very efficient distribution of the products of combustion is obtained over the heating
surfaces and through the tubes so that economy of fuel and rapidity of steam generation
are effected.
According to my invention I arrange flues one above or at a higher level than the
other inside the boiler and amongst the tubes in the water space above the fire box, the
lower flue being in communication with the fire box and the upper flue being in
communication with the chimney. At each end of these flues and in communication
therewith is a duplex chamber with which also the tubes communicate they crossing
from one chamber to the other through the water space. Each said duplex chamber
is divided by a partition into two compartments one being a combustion chamber and
the other a smoke box. The connections of the flues and tubes with these chambers
are such that the bottom flue communicates with the combustion division of the chamber
on each side, and the upper flue communicates with the smoke box division of the
chamber on each side, and the tubes cross from the combustion divisions of the chambers
on each side to the opposite smoke boxes. In operation the products of combustion
pass from the furnace into the lower flue and there divide and pass in opposite direc-
tions into the two combustion divisions of the end chambers and pass therefrom
through the tubes into the smoke box divisions of the said chambers on each side and
therefrom into the upper flue and into the chimney. The communications of the fire
box and the chimney with the two flues are preferably in the vertical axis of the
boiler.
The boilers described can be constructed very conveniently in sections for ease of
access and manipulation.
And in order that my said invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheets of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figure 1 is a side elevation of a boiler constructed according to my invention showing
the door of the combustion chamber at that side open.
Figures 2 and 3 are vertical central sections of the same taken in planes at right
angles to each other Figure 3 showing the arrangement for constructing the boiler in
sections, angle rings or flanges being formed on or rivetted round the parts of the main
body or shell of the boiler and the vertical part of the two flue tubes and the
top of the fire box and bottom of the chimney, which rings or flanges are then bolted
together.

page_text: Figure 4 is an elevation showing the door of the smoke box at that side open.
Figure 5 is a plan of Figure 1. Figure 6 is a horizontal section taken on the
line 1, 2 of Figure 2. Figure 7 is a horizontal section taken on line 3, 4 of Figure 3
and Figure 8 is a vertical section of the division plates.
C is the internal furnace fitted with the fire door A and fire bars B. D is the lower
flue consisting of a T shaped tube, the lower end opening from the furnace and the
two upper ends opening the one into the combustion chamber or box F and the other
into the combustion chamber or box F. D¹ is the upper flue consisting of an inverted
T shaped tube its two lower ends opening the one into the smoke box G and the other
into the smoke hox G¹ and the upper end of the said tube opening into the chimney J.
HH are the doors of the combustion chambers and I I' are the doors of the smoke
boxes. K and K' are the division plates between the combustion chamber and smoke
box at each side. In Figure 2 these division plates are only shown in part. E are
the tubes through which the products of combustion pass from the combustion chambers
through the water space into the smoke boxes.
The products of combustion pass from the furnace C into the lower flue D and then
they divide and pass in opposite directions into both combustion chambers F and F¹
and therefrom the said products pass as shown by the arrows in Figure 7 through the
tubes E into the smoke boxes G and G¹ from whence they pass into the upper flue D'
as shown by the arrows in Figure 6 and thence into the chimney J. Figure 8 shows
clearly the shape of the division plates K, K¹ which divide the combustion chambers
from the smoke boxes at either side.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
First. In steam boilers the combination of the flues D and D' communicating with the
furnace and chimney respectively and with the combustion chambers and smoke boxes
at each side with tubes Ẹ communicating therewith and traversing the water space
substantially as and for the purposes hereinbefore described and illustrated in the
accompanying drawings.
Second. The arrangement and combination of parts constituting the steam boiler
whether constructed in sections or not substantially as hereinbefore described and
illustrated in the accompanying drawings.
D
P T
1000