AN IMPROVEMENT IN APPARATUS FOR HEATING LIQUIDS
Year: 1855

page_text: LETTERS PATENT to Thomas Sadleir, of Mulla Tullamore, King's County,
Esquire, for the Invention of "AN IMPROVEMENT IN APPARATUS FOR HEATING
LIQUIDS."
Sealed the 21st December 1855, and dated the 14th July 1855.
PROVISIONAL SPECIFICATION left by the said Thomas Sadleir, at the
Office of the Commissioners of Patents, with his Petition, on the 14th
July 1855.
I, THOMAS SADLEIR, of Mulla Tullamore, King's County, Esquire, do hereby
declare the nature of the said Invention for "AN IMPROVEMENT IN APPARATUS
FOR HEATING LIQUIDS" to be as follows:-
My Invention consists in providing a hollow vertical chamber open at top
and bottom in or about the centre of any vessel suitable for heating liquids,
whether for water, tea, coffee, or otherwise, and in placing therein a basket or
case containing charcoal or other similar heating medium which will create
little or no smoke, and I make apertures in the bottom of the basket or case
for the admission of the air necessary to support combustion.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Sadleir in the Great Seal Patent Office on the
4th January 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
SADLEIR, of Mulla Tullamore, King's County, Esquire, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of July, 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 Thomas Sadleir, Her special licence that I, the said Thomas Sadleir, my
executors, administrators, and assigns, or such others as I, the said Thomas
Sadleir, 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 "AN IMPROVEMENT IN APPARATUS FOR
HEATING LIQUIDS," upon the condition (amongst others) that I, the said Thomas
Sadleir, by an instrument in writing under my hand and scal, should parti-
cularly 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 Sadleir, lo 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 thereof, reference being had to the Drawings hereunto annexed,
that is to say :-
My Invention consists in inserting a hollow vertical chamber open at top
and bottom in or about the centre of any vessel suitable for heating liquids,
and in placing therein a basket or case containing charcoal or other similar
heating medium which will create little or no smoke. I provide apertures in
the bottom of the basket or case for the admission of the air necessary to
support combustion.
In the Drawings hereunto annexed, I have shewn the manner in which I
construct my improved apparatus.
Figure 1 is a side elevation; and Figure 2, a longitudinal section thereof.
A, A, is a vessel, made of metal or other suitable material, supported on legs
B, B. This vessel is intended to contain the liquid to be heated, which is

page_text: introduced through the cover, made to open upon hinges. The vessel may be
rectangular, as shewn in the Figure, or of any other convenient shape. C is
a partition, dividing the vessel vertically into two parts, one of which may con-
tain coffee, for instance, and the other tea; E, E, cocks, by which the contents
may be drawn off; D is a hollow vertical chamber or tube, open at top and
bottom, and placed in or about the centre of the vessel A, being fitted tightly
therein, so that there may be no escape or leakage of liquids from the vessel;
F is a basket or fire box for fuel, fitting into the chamber D. The exterior
shape of this fire box is the same as the interior shape of the chamber D. At
the upper part of the fire box there is a flange or collar b, which rests upon
the top of the vessel, and prevents the fire box from falling through; c, c, are
fire bars; d, d, slits or apertures, for admitting a supply of air to the fuel to
support combustion; G is the ash box, which is made to slide on to the bottom
of the tube or chamber D beneath the fire bars for the reception of the ashes
from the fire; H, H, are steamers, which may be let into the top of the appa-
ratus A. These steamers are made to fit accurately into the top, and have
perforated bottoms a, a, through which steam rises from the vessel, and cooks
any articles of food placed in the steamers. I, I, are covers for the steamers.
A frying pan or kettle may be used over the top of the chamber D. L, L, are
handles, by which the apparatus may be lifted or carried.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, as constituting my
said Invention, the improved apparatus for heating liquids herein-before de-
scribed, made by inserting a hollow vertical chamber open at top and bottom
into or about the centre of a vessel suitable for heating liquids, and placing
therein a case or basket containing fuel, in the manuer herein-before described,
and represented in the Drawings hereunto annexed.
In witness whereof, I, the said Thomas Sadleir, have hereunto set my
hand and seal, this Third day of January, One thousand eight hundred
and fifty-six.
THOMAS SADLEIR. (L.S.)