IMPROVEMENTS IN BOILERS
Year: 1856

page_text: LETTERS PATENT to Thomas Goode Messenger, of Loughboro', in the
County of Leicester, Plumber, for the Invention of "IMPROVEMENTS IN
BOILERS."
Sealed the 15th August 1856, and dated the 23rd February 1856.
PROVISIONAL SPECIFICATION left by the said Thomas Goode Messenger
at the Office of the Commissioners of Patents, with his Petition, on the
23rd February 1856.
I, THOMAS GOODE MESSENGER, of Loughboro', in the County of Leicester,
Plumber, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN BOILERS," to be as follows:-
My Invention consists in surrounding the fire with a number of triangularly
or other shaped tubes, which form water spaces, extending from front to back,
and secured at each end by iron cement, or other suitable means, to sockets cast
on inner plates, with sides and ends and flanges, to which are screwed front
and back plates. By this arrangement a water space is formed between the
inner and outer plates, which communicates with the tubes. Water admitted
at the bottom or lower tube or tubes becomes heated, circulates freely through
all the tubes and water spaces, and rises to an outlet at the upper part of the
boiler. The furnace bars are cast with notches, and rest between the bottom
row of tubes. This boiler, formed as just described, would only be applicable
to heating purposes; and to convert it into a steam boiler, I add a steam box

page_text: or chest, which I cause to communicate with the water spaces, through which
the water ascends and descends, and circulates through the lower part of the
steam chest. The steam fills the upper part of the chest, and may be taken off
for any purpose required.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Goode Messenger in the Great Seal Patent Office
on the 16th August 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
GOODE MESSENGER, of Loughboro', in the County of Leicester, Plumber,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of February, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas Goode Messenger, Her special licence that I, the said Thomas
Goode Messenger, my executors, administrators, and assigns, or such others
as I, the said Thomas Goode Messenger, 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 BOILERS," upon the condition (amongst others)
that I, the said Thomas Goode Messenger, my executors, or administrators,
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.
NOW KNOW YE, that I, the said Thomas Goode Messenger, 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 thereof, reference being had to the Drawings hereunto
annexed (that is to say):-
My Invention consists in surrounding the fire with a number of triangularly
or other shaped tubes, which form water spaces, extending from front to back.

page_text: and secured at each end by iron cement or other suitable means to sockets cast
on inner plates, with sides and ends and flanges, to which are secured front
and back plates. By this arrangement a water space is formed between the
inner and outer plates, which communicates with the tubes. Water admitted
at the bottom or lower tube or tubes becomes heated, circulates freely through
all the tubes and water spaces, and rises to an outlet at the upper part of the
boiler. The bottom row of tubes serve the purpose of fire bars. This boiler,
formed as just described, would only be applicable to heating purposes; and to
convert it into a steam boiler, add a steam box or chest, which I cause to
communicate with the water spaces, through which the water ascends and
descends, and circulates through the lower part of the steam chest. The steam
fills the upper part of the chest, and may be taken off for any required
purpose.
Figure 1 of the accompanying Drawings is a transverse section of this
boiler, shewing the form of tubes and tubular fire bars; Figure 2, front
elevation of the same; Figure 3, back elevation, shewing inlet and outlet
pipes; Figure 4, longitudinal section of the boiler, shewing the connection of
the tubes and the chambers; and Figure 5, a perspective view, with part of
the brickwork removed. The same letters refer to similar parts in all the
Figures.
A, A, is the brickwork of the furnace; B, B, are a series of triangularly-
shaped tubes, extending parallel or nearly so to one another from the front to
the back part of the furnace. These tubes are secured at each end with iron
cement in sockets a, a, cast on the inner plates C, C¹. The plates C, C¹, are
cast with sides, ends, and flanges. To these plates, the front and back
plates D, D', also having sides, ends, and flanges, are bolted or otherwise fixed.
By this arrangement, a space marked A', Figure 4, between the plates C
and D, C, and D₁, is formed, and this space is in communication with the
triangularly-shaped tubes of the boiler. Water is supplied from the inlet pipes
B', B, and becomes partially heated before entering the tubes; after passing
through them, the water rises to the outlet pipe C", to circulate through the pipes
in a vinery or other house to be heated, and returns to the inlet pipes B', B¹.
II, flue or chimney through which the smoke passes; I is the furnace door;
and K, ash-pit. To fit a new tube for a damaged one or to clean the boiler,
it is only necessary to unbolt the plates C, C¹, or D, D', or both, when the
worn tube can be removed and a new one put into its place without in any
way disturbing the remainder or injuring the brick work of the furnace or boiler.
The plates C, C¹, and D, D', being again secured, the furnace is complete as

page_text: before. The boiler may be made capable of doing any amount of work by
increasing the number and length. of the tubes.
And having now described the nature of the said Invention, and the manner
in which the same is to be performed, I declare that I claim,
First, the placing in a boiler of a number of triangularly or other shaped
tubes, parallel or nearly so to each other, at such a distance and in such a
position as to allow the heat of the fire to pass freely between or around them;
in the manner herein-before described.
. Second, the constructing of the outer plates of the water-tight chambers in
separate parts, in the manner and for the purposes herein-before described.
And, third, the general arrangement of the furnace and boiler, constructed
and operating in the manner herein-before described, and represented in the
Drawings hereunto annexed.
In witness whereof, I, the said Thomas Goode Messenger, have hereunto
set my hand and seal, this Ninth day of August, in the year of our
Lord One thousand eight hundred and fifty-six.
THOMAS GOODE MESSENGER. (L.S.)