IMPROVEMENTS IN STEAM BOILERS AND FURNACES
Year: 1874

page_text: LETTERS PATENT to Edmund Outrain, of Greetland, near Halifax,
:
and Joseph Horton, of Huddersfield, both in the County of
York, for the Invention of "IMPROVEMENTS IN STEAM BOILERS AND
FURNACES."
Scaled the 15th December 1874, and dated the 16th June 1874.
PROVISIONAL SPECIFICATION left by the said Edmund Outram and
.
Joseph Horton at the Office of the Commissioners of Patents, with
their Petition, on the 16th June 1874.
: WC, EDMUND OUTRAM, of Greetland, near Halifax, and JOSEPH
HORTON, of Huddersfield, both in the County of York, do hereby.
declare the nature of the said Invention for "IMPROVEMENTS IN STEAM
BOILERS AND FURNACES," to be as follows:-
This Invention relates to improvements in tubular or internal fluc
boilers, and in furnaces therefor, whereby increased capacity for a
mixing chamber for the products of combustion, and consequently.
increased efficiency of the furnace are obtained, whilst at the same

page_text: time greater strength and less liability to injury from unequal expansion
of the boiler are ensured.
In carrying out this Invention the boiler is constructed in two parts
or lengths which are set in brickwork with their ends facing each
other, and connected together or not, as desired, with steam and water
tubes. A space is left between the two contiguous ends, which space
we enclose with brickwork so as to form a mixing chamber for the
products of combustion. This chamber is provided with suitable doors
for the removal of any soot which may fall thercin from the boiler tubes,
or any other deposit which may collect therein.
The two parts or lengths of the boiler may be connected to onc
common steam chamber from which to supply steam to the engine;
or each length may be provided with a separate steam pipe for that
nurnose
с
SPECIFICATION filed in pursuance of the conditions of the Letters
Patent, and of an Order of the Lord Chancellor, by the said Edmund
Outram and Joseph Horton in the Great Seal Patent Office on the
6th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, EDMUND
OUTRAM, of Greetland, near Halifax, and JosчРH HORTON, of Hudders-
field, both in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of June, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Edmund Outram and Joseph Horton,
Her special license that we, the, said Edmund Outram and Joseph
Horton, our executors, administrators, and assigns, or such others as
we, the said Edmund Outram and Joseph Horton, our executors, admi-
nistrators, 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 STEAM

page_text: BOILERS AND FURNACES," upon the condition (amongst others), that we,
the said Edmund Outram and Joseph Horton, our executors or admi-
nistrators, by an instrument in writing under our or their hands and
scals, or under the hand and scal of one of us or them, should particu-
larly 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. Edmund Outram and Joseph
Horton, do hereby declare the nature of the said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement thereof, that is to
say:
t
This Invention relates to improvements in tubular internal flue
boilers, and in the mode of setting the same so as to obtain a greater
area of heating surface, and a larger combustion chamber than can
be obtained in tubular boilers of the ordinary type, thereby increasing
the efficiency of tlic boiler, and adding materially to the stiffness of the
shell.
In carrying out this Invention the shell of the boiler is constructed
in two parts or lengths and set in brickwork end to end, but with a
space left between them, the two parts being connected together by
steam and water pipes passing through the space. In the front part
of the boiler is placed the furnace flue or flues, according as the boiler
partakes of the Cornish single flue, or Lancashire. double. flue type;
this tube or tubes passing through the front part of the boiler, and
open into the large chamber formed by the contiguous ends of the
boiler, and the brick arch or ring built round them. In this chamber
the products of combustion expand, heating the ends of the boiler
and then passing through the small tubes in the second or multi-
tubular part of the boiler. This chamber is also provided with suitable
doors by which soot or dirt may be removed which may have passed
through the tubes.
Over the boiler is placed a steam chamber connected to each part
by short vertical pipes, or a separate steam chamber may be provided
for each part, and the two parts made to act independently of each
other, as far as regards their water and steam supply. As this boiler
.

page_text: is constructed in two lengths, and having two extra ends, the shell is
considerably stiffened, and is also less liable to unequal expansion than
if constructed in one long length. The feed pipe and mountings are
of the ordinary type.
And in order that our Invention may be better understood and "more
casily constructed and carried into practical operation, we will now
proceed to describe the Sheet of Drawings hereunto annexed repre-
senting a perspective view of the boiler without the brick setting.
A is the front part of the boiler shell carrying the flue tubes L, L;
B is the back part of the boiler shell, and carrying the small tubes
F, F, F; C is a steam pipe, and D a water pipe connecting the two
parts of the shell together; these pipes may be dispensed with if desired.
E, E, the space left between the two ends, forming when covered in by
brickwork a heating chamber; G is a large steam chamber connected
to the boiler by the vertical pipes or connections H, H; K is the con-
nection to the steam pipe of engine.
Having now described and ascertained the nature of our said In-
vention and how the same may be put into practical operation, wo
would have it understood that we do not claim as new the con-
struction of any of the parts of the said boiler; but what we do claim
and desire to secure by the herein-before in part recited Letters
Patent is,-.
Firstly. The construction of a boiler shell in two parts, and set with
a space between them to act as a combustion and soot chamber, as herein-
before described and illustrated by the accompanying Drawings.
And Secondly. The connection between the two parts of the boiler
by steam and water pipes, as herein-before described and illustrated by
the accompanying Drawings.
In witness whereof, I, the said Edmund Outram, have hereunto
set my hand and seal, this Fifteenth day of December, in the
year of our Lord One thousand eight hundred and seventy-four.
EDMUND OUTRAM. (L.S.)