IMPROVEMENTS APPLICABLE TO GAS AND OTHER LAMPS AND LIGHTS, AND ALSO GAS STOVES FOR EFFECTING MORE COMPLETE COMBUSTION THEREIN
Year: 1859

page_text: LETTERS PATENT John Court, of Brompton Row, in the County of
Middlesex, for the Invention of "IMPROVEMENTS APPLICABLE TO GAS AND
OTHER LAMPS AND LIGHTS, AND ALSO GAS STOVES FOR EFFECTING MORE
COMPLETE COMBUSTION THEREIN."
4
Sealed the 16th March 1860, and dated the 19th September 1859.
:)
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PROVISIONAL SPECIFICATION left by the said John Court at the
Office of the Commissioners of Patents, with his Petition, on the
19th September 1859.
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I, JOHN COURT, of BromptonRow, in the County of Middlesex, do
liereby declare the nature of the said Invention for "IMPROVEMENTS APPLICABLE
TO GAS AND OTHER LAMPS AND LIGHTS, AND ALSO GAS STOVES; FOR EFFECTING MORE
COMPLETE COMBUSTION THEREIN," to be as follows
This Invention consists in applying a cap or cover of a material or substance
known in commerce as "asbestos," to the chimneys or globe shades of gas
lights, and also lamps, in which either gas, oil, paralline, spirits of wine, or
other spirit or liquid is employed as the illuminating medium or agent; and
also in applying a cap or cover of asbestos to stoves in which gas is used for
heating the same. The object and intention of this 'Invention being to effect.
more perfect combustion of such said illuminating agents. than heretofore,
by which their illuminating power will be considerably increased without
Price R/1

page_text: increasing the volume of the said illuminating agents, thereby effecting
economy in the consumption thereof. In applying this Invention to gas lights
and lamps in which chimneys and globe shades are used, I propose to place
on the top thereof a cap or cover formed as follows:-I form a ring of
metal of the diameter of the opening at the top of the chimney or globe,
across this said ring I fix metal wires, capable of withstanding the heat from
the flame, and I bind thereon and thereto shreds or filaments of asbestos
hanging downwards, or otherwise, so as to form a cap or cover, which, when
in use, becomes red hot, so that the smoke or carbonaceous vapours from the
flame in their passage through the shreds or filaments of the asbestos becomes
intensely heated, and consequently consumed, thus preventing escape of smoke
into the apartment, and at the same time considerably increasing the
illuminating power of the flame. In adapting this Invention to gas stoves,
the aforesaid cap or cover should be placed at that part thereof at which the
carbonaceous vapours would otherwise escape.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Court in the Great Seal Patent Office on the 19th
March 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
COURT, of Brompton Row, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of September, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-third 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 "IMPROVEMENTS
APPLICABLE TO GAS AND OTHER LAMPS AND LIGHTS, AND ALSO TO GAS STOVES, FOR
EFFECTING MORE COMPLETE COMBUSTION THEREIN," 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

page_text: 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 the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the fol-
lowing statement thereof, that is to say-
This Invention has for its object the more complete combustion of gas and
other agents used for illuminating purposes. To effect this I form a ring of
metal suitable to fit on the top of a chimney or glass of a lamp, portions of
the opening of which said ring I fill with a woven or plaited material, or
vegetable substance known as asbestos; or I bind shreds or filaments of the
same on small rods fixed across the said ring, thus forming and adapting a
cap or cover over the flame, the effect of which is as follows:-The asbestos
becomes red hot, the caloric is increased in the glass of the lamp or fire-place
of the stove, as the case may be, more perfect combustion ensues, the flame
is improved, and smoke prevented as the result.
In order to explain my said Invention as completely as possible, I now
proceed to describe the best means I am acquainted with for carrying the
same into practical effect, reference being had to the accompanying illustrative
Diagrams or Drawings, and to the numeral figures and letters of reference
marked thereon respectively, as follows:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a top plan view of a ring, shewing the mode of arranging the
asbestos therein, and connecting it thereto; Figure 2, a cross section of same;
Figures 3 and 4 are other forms of construction of rings. Similar letters of
reference are employed to denote corresponding parts at each of the above
Figures.
A is a ring of metal formed with a flange, as at Figure 2; B, a flat ring of
metal, across which pieces of woven or plaited asbestos C, C, are placed, and
held in position by any suitable adhesive substance; the meshes I have found
answer well with about three-sixteenths of an inch openings, or said ring may
be formed with small rods across same, as at Figure 3, on to which shreds or
filaments of asbestos may be bound with platinum wire, or by other suitable
means; the ring B may either be rivetted to the flange of the ring A, or by
indenting the part a of the ring A all round, as at Figure 2, said ring being
made of thin metal for that purpose. For globe shades of gas, or other lamps
or lights, I propose to form the asbestos cover in the manner exhibited at

page_text: Figure 4, where. b,. b, shews-a-recess formed all round the cover, serving as a
lip: to keep the cover in its place:
I adopt the above described modes of constructing the cap or cover, having
found them answer well in practice; I do not, however, intend to restrict or
limit myself to these precise methods, as they may be varied with good effect.
In adapting a cap or cover of asbestos to gas stoves, I propose to place said
cover from one to two inches above the flame.
Having now fully described and set forth the nature and object of my
said Invention of "Improvements applicable to Gas and other lamps and
Lights, and also to Gas Stoves, for effecting more complete Combustion
therein, I would remark in conclusion, that what 1 claim as my Invention
intended to be secured to me by the above in part recited Letters Patent, is,
the placing of a cap or cover of asbestos over the flame of a lamp or gas stove,
for the purposes set forth.
In witness whereof, I, the said John Court, have hereunto set. my
hand and seal, this Nineteenth day of March, in the year of our Lord
One thousand eight hundred and sixty.
JOHN COURT. (L.S.)