An Improved Vertical Steam Generator.
Year: 1890

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PROVISIONAL SPECIFICATION.
An Improved Vertical Steam Generator.
I, JOHN JOSEPH TINKER, of the firm of Tinker Brothers, of Daisy Field
Boiler Works, Hyde, in the County of Chester, Boiler Maker, do hereby declare
the nature of this invention to be as follows:-
My invention has for its object to provide a vertical steam generator having
increased and more effective heating surface so as to effect economy in fuel and
secure a good circulation of the water. The generator constructed according to
my invention can be made in sections to facilitate conveyance and it can be cleaned
and examined with great facility.
A steam generator constructed according to my invention consists of a vertical
shell, preferably cylindrical, the mid-portion being smaller, or of less diameter,
than the top and bottom portions. The bottom portion contains a fire box,
preferably dome shaped (or an independent fire-box may be situated under the
bottom portion of the shell) the top portion contains the smoke tube or lower part
of the chimney and the mid portion contains flues respectively in connection with the
fire box and with the smoke tube and chimney and lying preferably at about right
angles to cach other and communicating with the space around the reduced portion
of the shell. Water tubes are arranged round the said reduced mid-portion of the
shell within an annular chamber constituted by the space between the lines of the
mid-portion and the top and bottom portions of the shell and enclosed by a casing.
These water tubes form communications between the water space in the bottom
and upper portions.
The products of combustion from the fire box ascend into the flue in connection
therewith and pass thence into the annular chamber containing the water tubes and
afterwards pass into the upper flue and from that into the smoke tube and
chimney.
.
1.
1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, Agents.
COMPLETE SPECIFICATION.
An Improved Vertical Steam Generator.
1 JOHN JOSEPH TINKER of the firm of Tinker Brothers of Daisy Field Boiler
Works Hyde 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 has for its object to provide a vertical steam generator having a
large and effective heating surface and in which a good circulation of the water is
ensured and economy of fuel is effected. A generator constructed according to my
invention can be made in sections capable of being readily taken apart for
convenience of transport and to permit of its being cleaned and examined with
great facility.
The vertical shell of the boiler is preferably of cylindrical form and has a mid-
portion thereof of less diameter thin the upper and lower portions or than the
upper portion. The lower portion of the shell may contain a fire box (preferably
dome shaped) or an independent fire box may be situated under or in communication
with the lower portion of the shell. The upper portion of the shell contains the
smoke tube or uptake leading to the chimney and the mid-portion contains
017

page_text: horizontal flues or passages by which flues and a space or chamber surrounding the
mid-portion of the boiler communication is mule between the fire box and the
smoke tube or uptake leading to the chimney. Water tubes are preferably
arranged within the annular space or chamber and may form communications
between the water spaces in the upper and lower portions of the boiler.
The products of combustion from the fire box pass through the lower horizontal
flue in the mid-portion of the boiler into the chamber surrounding it, and after
circulating among the water tubes which may be contained therein the said products
pass through the upper horizontal flue into the smoke tube or uptake to the
chimney.
And in order that my invention may be clearly understood I will now proceed to
describe the same with reference to the accompanying drawings Figure 1 of which
shews in vertical section an1 Figure 2 in horizontal section (taken one half on the
line 1. 2 and the other half on the line 3.-4 Figure 1) a vertical steam generator
constructed according to my invention. Figure 3 shews in vertical section and
Figure in horizontal section (taken on the line 3. 6 Figure 3) a modification in
which the fire box is separate from the boiler and Figure 5 is a vertical section
and Figure a horizontal section along the lines 7. 8. Figure 5. shewing a
modified arrangement of the water circulating tubes.
The same letters of reference indicate corresponding parts in all the figures.
Referring to Figures 1 and 2, A is the shell of the boiler which is preferably of
cylindrical form and of less diameter at the mid-portion G than it is at the upper
and lower portions M and L. The lower portion 1 is provided with a fire hole
and oontains a fire box C, preferably dome shaped, and fitted with fire bars B.
The upper portion M of the shell contains a smoke tube or uptake I leading to the
chimney.
The mid-portion contains two tubes or horizontal flues E and arranged
preferably at right angles to each other. The lower flue E is connected with the
fire box by a vertical passage D and the upper flue communicates with the
uptake I. The flues E and 11 extend through the water space to opposite sides of
the contracted portion G of the boiler and communicate with a space or chamber l'
formed around the contracted portion (by an outer easing K.
Water circulating tubes F are arranged within the chamber P they being secured
at their upper and lower ends respectively in the bottom plate J of the upper
portion M and in the top plate of the lower portion of the shell. These tubes F
form communications between the water spaces in the upper and lower portions M
and L of the boiler. In the upper portion M of the boiler a man hole N is
provided for giving access to the interior of the boiler. The products of com-
bustion from the fire-box C pass (as shown by the arrows) by the passage D into
the lower flue E and thence into the chamber P containing the water circulating
tubes F and after circulating among the said tubes F the said products pass into
the flue I and from thence by the smoke tube or uptake I to the chimney.
In the arrangement shown in Figures 3 and 4 the fire box (instead of being
contained within the shell of the boiler, as in the arrangement illustrated in
Figures 1 and 2, is situated outside and beneath it. The boiler is constructed in
three sections, M being the upper section, the mid section and L. the bottom
section which may be connected together by angle irons and bolts as shewn at rou
the left hand side of Figure 3 so as to be capable of being readily fitted together
and taken apart when required.
On the right hand side of Figure 3 the top section M only is bolted to the mid-
portion G the lower portion L being rivetted thereto.
The boiler is otherwise similar in arrangement aml construction to that. illustrated
in Figures 1 and 2 except that there is provided an additional series of tubes 12
carried by a flange or ring O in the upper part or section M the said tubes
extending downwards inside the outer ring of tubes an annular space being left
between the outer surface of the tubes and the inner surface of the tubes F
for the circulation of the water. The tubes Fare preferably arranged in circles

page_text: as shewn in Figure 4, the tubes in the several circles being of gradually increasing
size from the inner circle to the outer circle as shewn.
The course of the products of combustion from the fire box C to the chimney, as
shewn by the arrows, is the same as described with reference to Figures 1 and 2.
In the arrangement illustrated in Figures 5 and 6 the lower portion L of the
shell of the boiler containing the fire box C is the same diameter as the mid-portion G
the top portion M only, being of greater diameter, and only a single circle or
ring of water circulating tubes F F are arranged round the mid-portion G and
enclosed in an outer casing K. The tubes are secured at their upper ends to
the lower plate J of the portion M of the boiler and communicate with the interior
thereof whilst their lower ends are closed by caps k. The tubes F which depend
inside the tubes F as explained with regard to Figures 3 and 4 are carried by an
annular tube plate O fitted in the upper portion M of the boiler.
The products of combustion from the fire box C pass to the chimney in the
direction indicated by the arrows and in their passage impinge against the tubes F
imparting heat thereto and inducing a circulation of the water therethrough.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
First. In vertical steam boilers a water space traversed by flues at or about right
angles to each other crossing the water space and communicating with a combustion
chamber surrounding the water space one of the said flues communicating with a
fire box and the other with the uptake or chimney substantially as hereinbefore
described and illustrated in the accompanying drawings.
Second. A vertical steam generator or boiler having an upper portion of greater
diameter than the mid portion and provided with water circulating tubes arranged
in a chamber surrounding the mid portion, through which chamber the products of
combustion from the fire box are caused to pass on their way to the chimney
substantially as and for the purposes hereinbefore described.
Third. A vertical steam generator or boiler having a mid-portion of smaller
diameter than the upper and lower portions and constructed in sections so as to be
capable of being readily taken apart for cleaning and repairs and for convenience of
transport substantially as hereinbefore described with reference to Figures 3 and 4
of the accompanying drawings.
Fourth. The general construction combination and arrangement of parts
constituting the improved vertical steam generator or boiler substantially as herein-
before described and illustrated respectively in Figures 1 and 2, Figures 3 and 4
and Figures 5 and 6 of the accompanying drawings.
Dated the 4th day of June 1891.
J. H. JOHNSON & Co.,
Agents.