AN IMPROVEMENT IN NIBS: FOR GAS BURNERS
Year: 1859

page_text: LETTERS PATENT to John Court, of Brompton Row, in the County of
Middlesex, Gas Fitter, for the Invention of "AN IMPROVEMENT IN NIBS:
FOR GAS BURNERS."
Sealed the 8th September 1859, and dated the 12th March 1859.
PROVISIONAL SPECIFICATION left by the said John Court at the Office
of the Commissioners of Patents, with his Petition, on the 12th March
1859.
I, JOHN COURT, of Brompton Row, in the County of Middlesex, Gas Fitter,
do hereby declare the nature of the said Invention for "AN IMPROVEMENT
IN NIBS FOR GAS BURNERS," to be as follows:-
My Invention consists in forming a chamber in the nib, and filling the
same with a number of layers of fine wire, wire gauze, perforated plates, or
other porous material, through which the gas passos. The progress of the
gas is retarded and its pressure diminished; it also becomes heated in its
course through the nib, and more complete combustion, and, consequently,
increased illuminating power, is the result. I form the chamber either by
boring the nib at the bottom of sufficient capacity to receive the layers of
wire or other material, and then insert a plug (proviously drilled through för
the passage of the gas) in the bottom of the nib to press on the material so
placed to confine it in its position; or I bore the nib at the top; and after
placing the wire gauze or other material, I confine it in its position by an iron;
earthen, or glass tip being fixed in the top of the nib; the tip is drilled or
slit as in the ordinary union, jet, or bat's-wing nibs.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Court in the Great Seal Patent Office on the 12th Sep-
tember 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN COURT,
of Brompton Row, in the County of Middlesex, Gas Fitter, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of March, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Court, Her 'special licence; that I, the said John Court,
my executors, administrators, and assigns, or such others as I, the said.
John Court, 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
NIBS FOR GAS BURNERS," upon the condition (amongst others) that I, the
said John Court, 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 John Court, 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 state-
ment thereof, reference being had to the Drawings hereunto annexed, that is
to say:-
My Invention consists in forming a chamber in the nib, and filling the
same with a number of layers of fine wire, wire gauze, perforated plates, or
other porous material, through which the gas passes. The progress of the gas
is retarded and its pressure diminished; it also becomes heated in its course
through the nib, and more completo combustion, and, consequently, increased
illuminating power, is the result. I form the chamber either by boring, the
nib at the bottom of sufficient capacity to receive the layers of wire or other
material, and then insert a plug (previously drilled through for the passage of
the gas) in the bottom of the nib; press on the material so placed and confine
it in its position; or I bore the nib at the top, and after placing the wire

page_text: gauze or other material, I confine it in its position by an iron, carthen, or
glass tip being fixed in the top of the nib; the tip is drilled or slit as in the
ordinary union, jet, or bat's-wing nibs.
Figure 1 of the accompanying Drawings is a sectional elevation of a nib
complete, drawn on an enlarged scale, constructed according to my Invention.
a is a plug drilled for the passage of gas, inserted through the bottom of the
nib, and secured by a pin; b, b, are several layers of fine wire gauze placed
above the plug a; the upper part of the gauze rests against a metal ring c.
Figure 2 is a section of a nib, in which the metal ring c is inserted through
the top of the nib, and has the layers of wire gauze 6 placed on it. The
whole is fixed by a hollow tool. The tip d is then placed in, and the nib is
complete. Figure 3 is a sectional elevation of another form of nib fitted
according to my Invention. a, a, is the outer shell, in which I bore a cavity b,
and fill the upper part thereof with wire gauze or perforated plate c. 1 insert
a metal plug d in the bottom of the nib, and drill or otherwise form an
aperture through the centre thereof for the passage of the gas. Although I
have only shewn the upper part of the cavity as containing wire gauze, the
whole may be filled with it, if desired.
And having now described the nature of my said Invention and in what
manner the same is to be performed, I declare that I claim the forming of a
chamber in the nib of gas burners, and filling or placing therein wire gauze or
other porous material, through which the gas passes in manner and for the
purposes herein-before described and illustrated in the accompanying Drawings.
In witness whereof, I, the said John Court, have hereunto set my hand
and seal, this Twelfth day of September, One thousand eight hundred
and fifty-nine.
JOHN COURT. (L.S.)