A LAMP THAT IS SO CONSTRUCTED TO PRODUCE NEITHER SMOAK HOR SMELL, AND TO GIVE CONSIDERABLY MORE LIGHT THAN ANY LAMP HITHERTO KNOWN
Year: 1784

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AMI
ARGAND, of Great Marlborough Street, Soho, Gentleman, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by the
grace of God of Great Britain, France, and-Ireland King, Defender of the
Faith, and so forth, by Elis Letters Patent under the Great Seal of Great
Britain, bearing date at Westminster, the Fifteenth day of March last past,
reciting, that whereas I, the said Ami Argand, had, by my Petition, humbly
represented unto His said Majesty that I had, after much trouble and con-
siderable expence, found out and invented "A LAMP THAT IS SO CONSTRUCTED
TO PRODUCE NEITHER SMOAK HOR SMELL, AND TO GIVE CONSIDERABLY MORE LIGHT
THAN ANY LAMP HITHERTO KNOWN," His said Majesty did therefore, by His
especial grace, certain knowledge, and meer motion, for Himself, His heirs
and successors, give and grant unto me, the said Ami Argand, my executors,
administrators, and assigns, His especial licence, full power, sole priviledge and
authority, by myself and themselves, or by mine or their deputy or deputies,
servants or agents, or such others as I, the said Ami Argand, my executors,
administrators, or assigns, shall at any time agree with, and no others, from
time to time and at all times hereafter during the term of years therein
expressed, to make, use, exercise, and vend my said Invention within that
part of the Kingdom of Great Britain called England, the Dominion of Wales,
and Town of Berwick-upon-Tweed, in such manner as to me, the said Ami

page_text: Argand, my executors, administrators, and assigns, or any of them, in their
discretions, seen meet, to have, hold, exercise, and enjoy the said licence,
powers, priviledges, and advantages to me, the said Ami Argand, my exe-
cutors, administrators, and assigns, for the term of fourteen years from the
date of the said recited Letters Patent; in which said Letters Patent is con-
tained a proviso, that if I, the said Ami Argand, should not particularly
describe and ascertain the nature of my said Invention, and in what manner
the same is to be performed, by an instrument in writing under my hand
and seal, and cause the same to be inrolled in His Majesty's High Court of
Chancery within four calendar months next and immediately after the date
of the said Letters Patent, that then the said Letters Patent, and all liberties
and advantages thereby granted, should utterly cease, determine, and become
void, as by the said Letters Patent, relation being thereunto had, may more
fully and at large appear.
.
NOW KNOW YE, that I, the said Ami Argand, in pursuance of the said
proviso in the said Letters Patent contained, do hereby describe and ascertain
the nature of my said Invention, and in what manner it is performed, as
follows, that is to say:-
My method of giving light by lamps or any other illuminating instruments
or things consists in wholly converting into flame and light any inflammable
or combustible matter whatever that may be used as the pabulum, fuel, or
subject of such light, which, in the common mole of producing light, is only
in part burnt, consumed, and converted into flame, the rest going off in smoak
or soot. This is effected in its various modes of application: first, by causing
a current of air to pass through the inside of the flame; secondly, by increas
ing that current of air, and producing another current of air on the outside of
the flame, by means of a chimney, dome, funnel, tube, pipe, or other con-
trivance, covering, surrounding, or inclosing the flame, or the vehicle, or the
receptacle or vessel containing it, so that the fresh air which continually
rushes into the said chimney, dome, funnel, tube, or pipe, or passes through it
to supply the place of that which is decomposed and rarified by fire or flame,
and which, growing lighter, escape continually through the top of the said
chimney, dome, funnel, tube, or pipe, shall have a free access and circulation;
or, thirdly, by applying such a chimney, dome, funnel, tube, or pipe to common
wicks, where the full effect of the principle is not required. This effect of
increasing the light, by converting the smoak into flame, is obtained by the
means above mentioned, which may be used either separately, or, where a
greater advantage is required, the methods above described may be combined

page_text: The vehicle which contains the light are made of various forms and various
naterials.
In witness whereof, I, the said Ami Argand, have hereunto set my
hand and seal, the Third day of July, in the twenty-fourth year of
of the reign of our Sovereign Lord George the Third, by the grace
of God of Great Britain, France, and Ireland King, Defender of the
Faith, and so forth, and in the year of our Lord One thousand seven
hundred and eighty-four.