CERTAIN IMPROVEMENTS IN THE MODE OF BURNING AND APPLYING GAS FOR LIGHT AND HEAT
Year: 1852

page_text: LETTERS PATENT to John Whichcord the younger, and Samuel
Egan Rosser, of Great Russell Street, Bloomsbury, in the
County of Middlesex, Civil Engineers, for the Invention of
"CERTAIN IMPROVEMENTS IN THE MODE OF BURNING AND APPLYING
GAS FOR LIGHT AND HEAT."
Sealed the 23rd February 1853, and dated the 29th December 1852.
PROVISIONAL SPECIFICATION left by the said John Whichcord
and Samuel Egan Rosser at the Office of the Commissioners of
Patents, with their Petition, on the 29th December 1852.
We, JOHN WHICHCORD the younger, and SAMUEL EGAN ROSSER,
do hereby declare the nature of the said Invention "FOR CERTAIN IM-
PROVEMENTS IN THE MODE OF BURNING AND APPLYING GAS FOR LIGHT AND
HEAT" to be as follows: -
The introduction, in a convenient position above a gas burner, of
a dish or vessel for the reception of the condensed water from a
ventilating tube, which condensed water is again evaporated by the
heat communicated from the burner to the dish containing the
water so condensed.

page_text: The use of a double chimney placed one below the other, the
upper part of the lower one entering the mouth of the upper one;
through the space thus eft between the chimnics, a current of
highly heated air is brought into contact with the aqueous vapour
given off by the combustion of the gas, and evaporates it.
Surrounding the lower part of the double chimnies with a large
globular glass (or other shaped) vessel, made as nearly air tight as
possible at the bottom, so that the air for the support of the com-
bustion of the gas descends from the top of the outer vessel, licking
the outer and inner surfaces of it, and so cooling it and obviating
the excessive heat arising from radiation.
The addition to the ordinary ventilating tube of a second larger
tube for carrying off the air heated by contact with the fittings,
subservient also to the purpose of general ventilation.
The application of a gas jet or other heating power to a vessel
placed in the interior of a stove, or vessel containing water or other
liquid, with a tube in connection with this vessel, to receive the
products of combustion in its course through the water contained
in the stove or vessel giving heat to the water or liquid, the same
contrivance for catching the condensation being resorted to as
expressed above.
Also a means (in the event of a flue or other outlet not being
available, where to deliver the contents of the tube) of turning the
tube into a chamber or box, in which the carbonic acid and
sulphurous acid gases are condensed and absorbed.
SPECIFICATION in pursuance of the conditions of the Letters
Patent, filed by the said John Whichcord and Samuel Egan
Rosser in the Great Seal Patent Office on the 29th June 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we,
JOHN WHICHCORD the younger, and SAMUEL EGAN ROSSER, of Grent

page_text: Russell Street, in the County of Middlesex, Civil Engineers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of December,
in the year of our Lord One thousand eight hundred and fifty-
two, in the sixteenth year of Her Reign, did, for Herself, Her heirs
and successors, give and grant unto us, the said John Whichcord
the younger, and Samuel Egan Rosser, Her special licence that we,
the said John Whichcord the younger, and Samuel Egan Rosser,
our executors, administrators, and assigns, or such others as we,
the said John Which cord the younger, and Samuel Egan Rosser,
our 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 "CERTAIN IMPROVEMENTS IN THE MODE OF BURNING AND
APPLYING GAS FOR LIGHT AND HEAT," upon the condition (amongst
others) that we, the said John Whichcord the younger, and Samuel
Egan Rosser, by an instrument in writing under our 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 John Whichcord the younger,
for and on behalf of myself and the said Sanuel Egan Rosser, do
hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and
ascertained in and by the following statement (that is to say):
Our improvements relate, firstly, to the mode of burning and
applying gas for lighting. This we effect by the introduction, in a
convenient and suitable position above the gas burner, of a venti-
lating bell and tube, made with a trough or channel, to receive the

page_text: condensation of any aqueous vapours arising from the combustion
of the gases; the said trough or channel being so placed that the
aqueous products can be carried away by a pipe or other known
means, or so placed with regard to the flame of the burner, that the
said aqueous products shall become evaporated, and driven off
through the chimney or ventilating tube, when the gas is burning.
Secondly, to the arrangement of the globes, glasses, and clim-
neys of gas burners with ventilating bells, whereby a current of
cold air is introduced between the outer surface of the ventilating
bell or glass, and the interior of the globe which encloses the gas
burner; and which arrangement will also insure the passage of a
current of air between the external surface of the gas chimney, and
the inner surface of the ventilating glass or bell. These objects are
effected by causing the pendant glass or bell over the burner to dip
below the mouth of the surrounding globe, and at the same time to
descend externally below the upper orifice of the chimney of the
gas burner. By this arrangement the atmospheric air, which can
only enter at the top of the globe, descends between the inner
surface of the globe and the outer surface of the bell, then passes
up between the outer surface of the chimney and the inner surface
of the pendant bell, carrying with it the whole of the products of
combustion of the gas up the ventilating tube.
Thirdly, to the mode of burning and applying gas for heat.
This is effected by placing the gas burner of a stove within or under
a tube or casing for conveying the heat through a chamber
surrounded with water or other fluid. This tube or casing is made
with a trough or channel placed in a suitable position for conveying
the condensed aqueous vapours that may be formed inside the
chamber by the combustion of the gases, and so placed that the
aqueous products can be conveyed away by a pipe or other known
means, or so fixed with regard to the flame of the burner, that the
said aqueous products shall become again evaporated and carried
up through the chimney; or the said tube or casing may be made
similar to the worm of a still or refrigerator, and the end turned

page_text: down to allow the condensation of the products of combustion to
fall into. a saucer or vessel made to catch or receive the same.
In witness whereof, we, the said John Whichcord the younger,
have hereunto set my hand and seal, this Twenty-ninth day
of June, in the year of our Lord One thousand eight hundred
and fifty-three.
JOHN WHICHCORD, Jr. (L.S.)