IMPROVEMENTS IN OR APPLI- CABLE TO CERTAIN MARINE AND STATIONARY LAND BOILERS FOR GENERATING STEAM
Year: 1867

page_text: LETTERS PATENT to Edward Storey, of the Town and County of Lan-
caster, Manufacturer, for the Invention of "IMPROVEMENTS IN OR APPLI-
CABLE TO CERTAIN MARINE AND STATIONARY LAND BOILERS FOR GENERATING
STEAM."
Sealed the 27th August 1867, and dated the 6th March 1867.
PROVISIONAL SPECIFICATION left by the said Edward Storey at the
Office of the Commissioners of Patents, with his Petition, on the 6th
March 1867.
I, EDWARD STOREY, of the Town and County of Lancaster, Manufacturer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN OR
APPLICABLE TO CERTAIN MARINE AND STATIONARY LAND BOILERS FOR GENERATING
STEAM," to be as follows:-
The object of my Invention is to economize heat in the generation of
steam by checking loss from radiation, heating the feed water by waste or
surplus heat, and by extending the flue or heating surface. By my improve-
ments brickwork is wholly or partially dispensed with, the expansion and
contraction of the metal forming the internal flues and external shells of
boilers is rendered more uniform, and other advantages are obtained.
My improvements relate and are applicable to certain marine and stationary
land boilers, and consist in the construction, arrangemont, and combination of

page_text: such boilers, the principal and peculiar feature of my Invention being the
enveloping (wholly or partially) of a central boiler of cylindrical form with
a double casing, which may be wholly or partially filled with water when in
use, there being a flue space left between the central boiler and the casing
for the beated gases to pass through before entering the chimney, consequently
the exterior of the central boiler will be kept heated by the surplus heat of
the gases after passing through its internal flues, and a portion of the residue
of the heat will pass to the water contained in the said casing. The feed
water for the boiler is made to enter the external casing first, and is then
pumped from the casing into the boiler. The casing need only be made to
withstand atmospheric pressure, but, if required, it may be made to resist
internal pressures above the atmosphere, and the steam generated therein may
be applied as an auxiliary motive power for propelling, for working donkey
and other steam engines or pumps, for feeding the boiler with water, for the
distillation of sea and other water, and for various other purposes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Storey in the Great Seal Patent Office on the
3rd September 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
STOREY, of the Town and County of Lancaster, Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of March, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Edward Storey, Her special license that I, the said Edward Storey, my
.executors, administrators, and assigns, or such others as I, the said Edward
Storey, my 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 "IMPROVEMENTS IN OR
APPLICABLE TO CERTAIN MARINE AND STATIONARY LAND BOLLERS FOR GENERATING
STEAM," upon the condition (amongst others) that I, the said Edward
Storey, by an instrument in writing under my hand and seal, should. par-
ticularly 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

page_text: 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 I, the said Edward Storey, do hereby declare
the nature of my 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 Drawings (that is to say):-
The object of my Invention is to economize heat in the generation of steam
by checking loss from radiation, heating the feed water by waste or surplus
heat, and by extending the flue or heating surface. By my improvements
brickwork is wholly or partially dispensed with, the expansion and contraction
of the metal forming the internal flues and external shells of boilers is
rendered more uniform, and other advantages are obtained.
My improvements relate and are applicable to certain marine and
stationary land boilers, and consist in the construction, arrangement, and
combination of such boilers, the principal and peculiar feature of my Invention
being the enveloping (wholly or partially) of a central boiler of cylindrical
form with a double casing, which may be wholly or partially filled with water
when in use, there being a flue space left between the central boiler and the
casing for the heated gases to pass through before entering the chimney...
consequently the exterior of the central boiler will be kept heated by the
surplus heat of the gases after passing through its internal flues, and a portion
of the residue of the heat will pass to the water contained in the said casing..
The feed water for the boiler is made to enter the external casing first, and is
then pumped from the casing into the boiler. The casing need only be made
to withstand atmospheric pressure, but if required it may be made to resist
internal pressures above the atmosphere, and the steam generated therein
may be applied as an auxiliary motive power for propelling, for working
donkey and other steam engines or pumps, for feeding the boiler with
water, for the distillation of sea and other water, and for various other
purposes.
My improvements are illustrated by the Figures upon the accompanying
three Sheets of Drawings.
Sheet 1 shows my improvements as adapted for marine boilers. Three
boilers are shown side by side; each boiler is a distinct and separate compound
bigh and low pressure boiler, the central cylindrical boiler being of high and
the casing or external part of low or of lower pressure, but if the casing is
sufficiently stayed both parts may be connected to withstand the same internal
pressure. Fig. 1 is a plan, partly in section; Fig. 2 is a sectional end
elevation; Fig. 3, a longitudinal elevation, partly in section; and Fig. 4 is a

page_text: longitudinal section. The three boilers shown are duplicates of each other,
but advantage is taken in Figs. 1 and 2 to show different views by each
boiler. In Fig. 1 the middle boiler is represented by a plan section, that to
the left of it by a plan or top view, and that to the right of it by a half plan
of the top and half plan (partly in section) with the casing removed. In
Fig. 2 the middle boiler is represented by a half front end elevation and half
sectional end elevation through the man-hole, and that to the left of it by a
half back end elevation and half sectional elevation through the smoke box,
and that to the right by a half front sectional elevation through the man-hole
and a half sectional elevation through the steam dome.
The sectional part of Fig. 3 is taken through the line A, B, Fig. 2, and
cuts away part of the casing. a is the furnace or fire-box; b, the flue tubes;
c, the smoke box formed at the back end of the boiler to cause the heated
gases to pass downwards under the cylindrical exterior (d) of the boiler
through a flue (e), the sides of which are formed by the two hollow
supports (f) which are connected to the exterior of the cylindrical boiler and
to the lower part of the double casing (9) forming the bottom of the flue as
shown. The water in the casing (9) is made to communicate with the hollow
supports (f.) The flue (e) passes to the front of the boiler, and then, as the
hollow supports (f) terminate before they reach the front of the boiler (see
Figs. 3 and 4), the heated gases divide and are diffused over the entire
exterior (d) of the cylindrical boiler, excepting that part where the
supports () come in contact with it and that part which is covered by the
steam dome, which part is cut off by a partition to prevent the heated gases
from ascending and coming in contact therewith before they arrive at the
end of the boiler. With the exceptions named there is thus a return flue (h)
embracing the sides and top of the boiler, the double casing (9) forming one
side of this flue. When the heated gases arrive again at the back end of the
boiler they ascend from a point (formed by a partition) below the water line
in the cylindrical boiler, and diffuse themselves round the steam dome (k)
which is surrounded by the double casing as shown, and then pass off to the
flue (1) leading to the chimney. A single casing for the dome (k) may be
used instead of the double casing if desired. The arrows shewn in the Figures
are placed upon the flues of the boilers and point in the direction in which
the gases pass to the flue (1) leading to the chimney. A number of man-
holes (m) are provided for cleaning out the flues, and other holes (n) are
arranged for cleaning the casing (9.) The man-boles, safety valves, blow-off
cocks, and other parts not referred to by letters, and the manner of constructing
the parts, will be readily understood by inspecting the Figures of the Drawings.

page_text: Sheet 2 exhibits diagramatic views of several modifications of my improve-
ments as applied to boilers suitable for marine purposes.
Figures 5, 8, 11, 14, 17, and 20 are plan sections; Figures 6, 9, 12, 15,
18, 21, and 23 are longitudinal sections; and Figures 7, 10, 13, 16, 19, 22,
and 24 are end sectional elevations. Figures 5, 6, and 7 show diagramatic
views of a separate boiler, similar to those herein-before described and shewn
by the Figures 1 to 4; Figures 8, 9, and 10 shew a boiler similar to that
shown by Figures 5, 6, and 7, but with a single furnace (a) and set of flue
tubes (6); Figures 11, 12, and 13 shew a boiler similar to that shown by
Figs. 5, 6, and 7, with two flues (a) passing through the boiler, tubes not
being used; Figures 14, 15, and 16 shew a boiler similar to that shown by
Figures 8, 9, and 10, but where a single flue (a) is substituted for the tubes;
Figures 17, 18, and 19 shew a double-flued boiler with conical water
tubes (a); Figures 20, 21, and 22 shew a double furnace (a) and then an
oval flue with conical water tubes (a¹); Figures 23 and 24 represent a boiler
with three flues (a) passing through it.
Sheet 3 illustrates by diagramatic views the application of my Invention
as adapted to stationary land boilers. Figure 25 is a plan section; Figures
26, 28, 30, 32, 34, 36, and 38 are longitudinal sections; and Figures 27, 29,
31, 33, 35, 37, and 39 are end sectional elevations.
Figures 25, 26, and 27 represent one modification of my Invention, and
Figures 28 and 29, Figures 30 and 31, Figures 32 and 33, Figures 34 and 85,
and, lastly, Figures 36 and 87 represent other modifications of my Invention,
the Figures conjoined being views of the same boiler. With the exception of
the boiler represented by Figures 32 and 33, the flue (c) for returning the
heated gases under the boiler and the flue (1) for conducting them away to
the chimney are formed by brickwork, the plan section of which flues is shown
in Figure 25. Arrows are shewn upon the flues in the Figures upon
Sheets 2 and 3, as on the Figures of Sheet 1, to point in the direction in
which the gases pass to the chimney, and the letters of reference are repeated
on the same and corresponding parts throughout the Drawings, so that from
the previous explanation of the Figures upon Sheets 1 and 2, the Figures
upon Sheet 3 will be readily understood by inspection.
I have now particularly described the nature of my Invention and the mode
of carrying the same into effect, and claim as my Invention-
Firstly, the general arrangement and combination of steam boilers, sub-
stantially as herein-before described, and illustrated by the accompanying
Drouings

page_text: Secondly, the combination of a casing (9) with a central cylindrical
boiler (d) having internal flues, substantially as herein-before described, and
illustrated by the accompanying Drawings.
Thirdly, the use of a high-pressure central cylindrical boiler (d) combined
with a low-pressure casing (9) constructed and arranged substantially as
berein-before described, and illustrated by the Drawings.
In witness whereof, I, the said Edward Storey, have hereunto set my
hand and seal, this Thirteenth day of August, in the year of our Lord
One thousand eight hundred and sixty-seven.
EDWARD STOREY. (L.S.)