IMPROVEMENTS IN ARGAND GAS BURNERS
Year: 1865

page_text: LETTERS PATENT to William Morrant Baker, of No. 6, Furnival's Inn,
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
ARGAND GAS BURNERS."
Sealed the 19th September 1865, and dated the 22nd March 1865.
PROVISIONAL SPECIFICATION left by the said William Morrant Baker
at the Office of the Commissioners of Patents, with his Petition, on
the 22nd March 1865.
I, WILLIAM MORRANT BAKER, of No. 6, Furnival's Inn, in the County of
Middlesex, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN ARGAND GAS BURNERS," to be as follows:-
This Invention has for its object improvements in argand gas burners...
Heretofore the quantity of air passing through argand gas burners to the
interior of the flame has been constant, whether the supply gas to and
Now I'
through the burner is full on or up to the maximum supply or not.
have ascertained that if the air passage be suitable for supplying air through
the burner, when the maximum supply of gas is being consumed by the
burner, then that the supply of air through the tube of the argand-gas burner
will be in excess of the requirement when less gas is being burnt by the
burner.
Now my Invention consists in applying a moveable valve or regulator to an.
argand gas burner below its upper surface where the gas is ignited, so that
the supply of air through the argand burner to the interior of the flame may

page_text: be regulated from time to time according to the quantity of gas which is
allowed to pass to and is being burnt by the burner. By such means gas will
be burnt with great economy, and more light will be obtained when burning
gas by an argand burner than has heretofore been the case. The form of the
valve regulator and the manner of adjusting the same may be greatly varied;
but I prefer a valve or regulator which will admit of being moved by a screw,
and be thereby held in the desired position for allowing the required quantity
of air to pass through the gas burner. The position of the valve may be
varied, so long as it is below the upper surface of the burner where the gas
is burnt.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Morrant Baker in the Great Seal Patent Office on
the 22nd September 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
MORRANT BAKER, of No. 6, Furnival's Inn, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of March, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-eighth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Morrant Baker, Her special licence that I, the said
William Morrant Baker, my executors, administrators, and assigns, or such
others as I, the said William Morrant Baker, 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 IN ARGAND GAS BURNERS," upon the condition
(amongst others) that I, the said William Morrant Baker, 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 William Morrant Baker, do hereby
declare the nature of my said Invention, and in what manner the same is

page_text: to be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the accompanying Drawings,
that is to say:
This Invention has for its object improvements in argand gas burners.
Heretofore the quantity of air passing through argand gas burners to the
interior of the flame has been constant, whether the supply of gas to and
through the burner is full on or up to the maximum supply or not. Now, I
have ascertained that if the air passage be suitable for supplying air through
the burner, when the maximum supply of gas is being consumed by the
burner, then that the supply of air through the tube of the argand gas burner
will be in excess of the requirement when less gas is being burnt by the
burner...
Now my Invention consists in applying a movable valve or regulator to an
argand gas burner below its upper surface where the gas is ignited, so that
the supply of air through the argand burner to the interior of the flame may
be regulated from time to time according to the quantity of gas which is
allowed to pass to and is being burnt the burner. By such means gas will
be burnt with great economy, and more light will be obtained when burning
gas by an argand burner than has heretofore been the case. The form of the
valve regulator and the manner of adjusting the same may be greatly varied;
but I prefer a valve or regulator which will admit of being moved by a screw,
and be thereby held in the desired position for allowing the required quantity
of air to pass through the gas burner. The position of the valve may be
varied, so long as it is below the upper surface of the burner where the gas
is burnt.
Figure 1 of the accompanying Drawings is a side elevation, and Figure 2
is a longitudinal section of so much of an argand gas burner as will be
necessary to show how my Invention may be carried into effect.
a is the valve or regulator attached to a threaded spindle 6 passing through
a bracket d, and carrying at bottom a button e. By turning this button e an
up or down motion is communicated to the valve a. Air passes into the
interior of the burner between the edge of the valve a and the base of the
burner, and the quantity admitted is regulated by the distance the valve is set
from the base of the burner. The space for the passage of air is determined
by the quantity of gas being consumed, and the intensity of the light required,
for example, if but a small quantity of gas is turned on the valve is made to
nearly close up the passage for the air, and as the quantity of gas is increased
the valve is lowered and more air admitted.
And having now described the nature of my said Invention, and in what

page_text: manner the same is to be performed, I declare that although I prefer the
particular form of valve described herein for the purposes of my Invention,
yet I do not limit myself thereto, as a valve may be applied to the under
side of the burner in other ways; for example, I can use a slide valve capable
of receiving a lateral motion for regulating the quantity of air admitted to
the under side of the burner; but what I claim is, the application to argand
gas burners of a movable valve or regulator below the upper surface thereof,
or where the gas is ignited and consumed, substantially in manner and for
the purposes herein-before described and illustrated in the accompanying
Drawings.
In witness whereof, I, the said William Morrant Baker, have hereunto
set my hand and seal, this Twenty-first day of September, in the
wook of our Lord One thousand eight hundred and sixty-five.
W. MORRANT BAKER. (L.S.)