IMPROVEMENTS IN MARINE
Year: 1855

page_text: LETTERS PATENT to Simon O'Regan, of Liverpool, in the County Palatine
of Lancaster, Engineer, for the Invention of "IMPROVEMENTS IN MARINE
Sealed the 11th April.1856, and dated the 27th October 1855.
PROVISIONAL SPECIFICATION left by the said. Simon O'Regan at tho
Office of the Commissioners of Patents, with his Petition, on the 27th
October 1855.
I; SIMON O'REGAN, of Liverpool, in the County Palatine of Lancaster,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE.
MENTS IN MARINE ENGINE BOILERS AND OTHER BOLLERS AND THEIR FURNACES" to be
as follows:-
Marine boilers constructed according to my improvements require the flue
spaces to be of sufficient dimensions to contain tubes placed either vertically
or slightly inclined instead of horizontally, as usually practised. The spaces
between the tubes and the diameter of the tubes may vary according to cir-
cumstances, and their length will depend on the space between the top of the
furnace and the top or crown of the boiler. By these arrangements the usual
deposits of the water will fall into the large portions of the boilers used for
marine and other purposes, and incrustation within the tubes will be con-

page_text: siderably diminished, and, tubes so arranged are also easily scaled or cleaned.
I provide that at the "take-up" or back end of the furnace the heat and
products of combustion shall pass through the tubes when they are placed
vertical, but around the outside of the tubes when they are placed inclined;
and behind the bridge I construct an air chamber, having a perforated plate to
aid the admixture of the air and gases.
My furnace bars have a chilled surface, and are made moveable on joggles.
The dead plate is usually solid, but I prefer to use one cast with perforations,
or in suitable bars, laid at right angles to the furnace fire bars. The
furnace door is likewise arranged to admit a regulated quantity of air to
the furnace.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Simon O'Regan in the Great Seal Patent Office on, the
25th April 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SIMON
O'REGAN, of Liverpool, in the County Palatine of Lancaster, Engineer, send
greeting.
.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of October, in the year of our
Lord One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Simon O'Regan, Her special licence that I, the said Simon O'Regan, my
executors, administrators, and assigns, or such others as I, the said Simon
O'Regan, 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,
term..therein
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN MARINE
ENGINE BOILERS AND OTHER BOILERS AND THEIR FURNACES," upon the condition
(amongst, others) that I, the said Simon O'Regan, my executors or admi
nistrators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly 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.

page_text: NOW KNOW YE, that I, the said Simon O'Regan, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
My said improvements refer, firstly, to arrangements peculiarly adapted for
flue boilers, and particularly that description used for marine purposes, the
object being to promote the circulation of the water, to diminish the amount
of scale deposit, and to facilitate its removal; and, secondly, to improved con-
struction in furnaces, with the view to promote combustion and prevent the
formation of smoke..
And for the better understanding of my said Invention, I will now proceed
to detail a full description thereof.
Marine boilers constructed according to my improvements require the main
flue spaces to be of sufficient. dimensions to contain, in one arrangement I
adopt, tubes placed either vertically or slightly inclined instead of horizontally,
as usually practiced. The spaces between the tubes and the diameter of the
tubes may vary according to circumstances, but their length. will depend on
the space between the top of the furnace and the top of the crown of tho
boiler, and the hot air and products of combustion from the furnace will pass
off upwards through or around these tubes, and so onwards to the chimney or
funnel. By these arrangements the greater part of the usual deposits of the
water will fall into the large portions of the boilers used for marine and
other purposes, and incrustation in or around the tubes will be considerably
diminished; and tubes so arranged, and secured by rivetting.or otherwise, are
also further advantageous, in consequence of their being easily scaled or cleaned.
I provide that at the take-up or back end of the furnace the heated air and
products of. combustion shall pass through the tubes when they are placed
vertical, but around the outside of the tubes when they are placed inclined
and used as water tubes, and also around such vertical tubes as are placed in
the flues. Or I arrange alternate, narrow flues and water spaces, formed with
plain or galvanized corrugated metal boiler plates in the main flues and
shell.
...I
In furnaces adapted to my improved arrangements of boilers, I construct
behind the fire bridge an air chamber, having a perforated or slotted metal
plate, or one of other suitable material with which to box it in, and thereby
promote the admixture of the air and gases to favour ignition, the said air
box receiving air through slots, and a port covered by a regulating valve. In
furnaces closed at the front and fired from a side door, I fix in the front brick-
work a hot-air channel or chambers, similar to my plan for furnace doors,

page_text: admitting the air at the lower part outside, and discharging it at the top inside
the furnace through slots or perforations, and so in like manner admitting air
in front and through the brickwork, when required; and in all cases I recom-
mend combining therewith the hollow bridge, perforated air box, and valve,
before named. My furnace bars have a chilled surface, and are made moveable
by a joggle shaft.. The dead plate is usually in one solid piece; but I prefer
to use one cast with slots or perforations, or in bars laid at right angles to the
furnace fire bars, and kept apart by side nibs. Between the furnace door frame
and dead plate is placed a bar with thickness pieces to admit air, and which
when removed allow the dead plate to be shifted. The furnace door is like-
wise arranged to admit a regulated quantity of air to the furnace through its
box or chamber, attached thereto on the inside of the door, perforated or slotted;
as before named, and sometimes with ribs cast on such air box; and for wide
furnaces air boxes are also fixed on each side of the door frame.
Having thus exactly described my said Invention, I would here observe, that
as the same is capable of being modified, I do not limit myself to the size,
form; or number of tubes, or to their being used exclusively for the passage
of water or of heated air, so long as the construction herein detailed is
carried out; and I do declare that what I claim as my improvements are,
namely;
First, the peculiar arrangement of tubular or flue marine and other boilers.
And, second, the modes of constructing furnaces in connexion therewith, as
described.
In witness whereof, I, the said Simon O'Regan, have hereunto set my
hand and seal, this Eighteenth day of April, in the year of our Lord
1856.