IMPROVED, APPARATUS FOR THE MORE PERFECT COMBUSTION OF GASES, FOR PREVENTING; THEIR ESCAPE, AND THE UNNECESSARY RADIATION OF HEAT THEREFROM
Year: 1856

page_text: LETTERS PATENT to David White, of No. 3, Winchester Place, in
the Parish of St. James, Clerkenwell, in the County of Middlesex,
Surveyor, for the Invention of "IMPROVED, APPARATUS FOR THE MORE
PERFECT COMBUSTION OF GASES, FOR PREVENTING; THEIR ESCAPE, AND THE
UNNECESSARY RADIATION OF HEAT THEREFROM,"
PROVISIONAL SPECIFICATION left by the said David White at the
Office of the Commissioners of Patents, 'with his Petition, on the
26th June 1856.
I, DAVID WHITE; of No: 3, Winchester Place, in the Parish of St. James,
Clerkenwell, in the County of Middlesex, Surveyor, do hereby declare the
nature of the said Invention for "IMPROVED APPARATUS FOR THE MORE PERFECT
COMBUSTION OF GASES, FOR PREVENTING THEIR ESCAPE, AND THE UNNECESSARY
RADIATION OF HEAT THEREFROM," to be as follows:-
The concentration of gas in a chimney shaft, funnel, cylinder, or globe
covered on the top, only allowing room for the escape of heat after the com.
bustion of gas, and an external air chamber, shaft, funnel, cylinder, or
globe fixed or hung under the gas burner, air-tight at the bottom, surround-
ing the internal gas chamber, open at the top, leaving a space to allow the
admission of air to descend from the top to feed the gas flame under the
internal gas chamber below the burner thereof, as described in Drawing.
Fig. 1 is a section showing the arrangement of the different parts of my said
Iuvention, as applied to argand burners; Fig. 2 is a plan of the same; Fig. 3
the same applied to fish-tail and other similar burners; the like letters refer to

page_text: similar parts in the two cases. A is the cap, made of talc or any other
suitable indistructable material, placed on the internal glass cylinder or
globe B; C is the external glass cylinder or globe, made of one or more
parts, and closed at bottom; the arrows shew the passage of air to the flame,
and gases from the flame. Fig. 4 is a plan of the Fig. 3, showing the cap.
I claim the cap and covering on the top of the internal chimney shaft,
cylinder, or globe, the external air shaft, in one or more parts, closed at the
bottom, surrounding at a distance from the bottom of the gas burner, ex-
tending upwards to receive air to feed the flame of the gas, and acting as
a protection against the rushing of air to the gas flame.
I also claim the peculiar combination here set forth.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said David White in the Great Seal Patent Office on the
23rd December 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
WHITE, of No. 3, Winchester Place, in the Parish of St. James, Clerkenwell,
in the County of Middlesex, Surveyor, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of June, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
David White, Her special licence that I, the said David White, my execu
tors, administrators, and assigns, or such others as I, the said David White,
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 "IMPROVED APPARATUS FOR THE MORE PERFECT
COMBUSTION OF GASES, FOR PREVENTING THEIR ESCAPE, AND THE UNNECESSARY
RADIATION OF HEAT THEREFROM," upon the condition (amongst others) that
I, the said David White, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly 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 David White, 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 and accompanying Drawings (that is to say):-—
The concentration of gas in a chimney shaft, funnel, cylinder, or globe
covered on the top, only allowing room for the escape of heat after the com-
bustion of gas, and an external air chamber, shaft, funnel, cylinder, or globe
fixed or hung under the gas burner, air-tight at the bottom, surrounding
the internal gas chamber, open at the top, leaving a space to allow the
adinission of air to descend from the top to feed the gas flame under the
internal gas chamber below the burner thereof, as described in the Drawings
hereunto annexed.
Fig. 1 is a plan; Fig. 2 is a Drawing, partly in section, showing the.
arrangement of the different parts of my said Invention, as applied to argand
burners; Fig. 3 is a section of the lower part of the same; Fig. 4 is a plan,
and Fig. 5, a Drawing, partly in section, of an arrangement for being sus-
pended from above and enclosed; Fig. 6, the same applied to fish-tail and
other similar burners; Fig. 7 represents the plan of the top of Fig. 6. The
like letters refer to similar parts in the two cases. A is the cap, made of
talc, earthenware, or any other suitable indistructable material, placed on
the internal glass cylinder or globe B; C is the external glass cylinder or
globe, made of one or more parts, and closed at bottom; the arrows shew
the passage of air to the flame, and gases from the flame. Fig. 9 is a plan,
and Fig. 8, a Drawing, partly in section, showing the cap where one or more
burners are contained in one or more globes or vessels.
I claim the cap and covering on the top of the internal chimney shaft,
cylinder, or globe, the external air shaft, in one or more parts, closed at the
bottom, surrounding at a distance from the bottom of the gas burner, ex-
tending upwards to receive air to feed the flame of the gas, and acting as a
protection against the rushing of air to the gas flame.
I also claim the peculiar combination herein set forth.
In witness whereof, I, the said David White, have hereunto set my
hand and seal, this Twenty-third day of December, in the year of our
Lord One thousand eight hundred and fifty-six.
D. WHITE: (L.S.)