IMPROVEMENTS IN PRODUCING LIGHT
Year: 1842

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ISHAM
BAGGS, of Wharton Street, in the County of Middlesex, Chemist, send
greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-fifth day of November, in the sixth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Isham Baggs, Her especial licence, full power, sole privilege and authority,
that I, the said Isham Baggs, my exors, admors, and assigns, or such others
as I, the said Isham Baggs, my exors, adiňors, and assigns, should at any time
agree with, and no others, from time to time and at all times during the term
of years therein mentioned, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "IMPROVEMENTS IN PRODUCING LIGHT;" in which said Letters
Patent is contained a proviso that I, the said Isham Baggs, shall cause a par-
ticular description of the nature of my said Invention, and in what manner
the same is to be performed, to be inrolled in Her said Majesty's High
Court of Chancery within six calendar months next and immediately after
the date of the said in part recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Isham Baggs, do hereby declare that the nature of my Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following statement thereof, reference being had to the
Drawings hereunto annexed, and to the figures and letters marked thereon,
that is to say:-
My Invention relates, first, to combining a burner consuming inflamable gas
or vapour with a burner consuming naptha or other matter, which, in being
consumed, is capable of offering a quantity of smoke. And, secondly, my
Invention relates to combining the use of a conical glass chimney with an
Argand burner consuming naptha, oil, or other matter, the smaller diameter of
the conical glass chimney being downwards. And in order that my Invention
may be most fully understood and readily carried into effect, I will proceed to
explain the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shews a front view of a gas burner combined with a naptha or
other lamp consuming any other fluid capable of giving off smoke in being
consumed. The lamp is shewn in section. Figure 2 represents a plan of the
same parts. a is the gas burner, which is of an ordinary construction, the holes
for the jets of gas or vapour being in radial directions in a vertical plane.
b, b, are the wicks of the lamp for consuming naptha or other suitable fluid
contained in the lamp c, which may be made of any convenient shape,
depending on the locality in which it is to be placed; and there should be
means of regulating the position of the burner of the lamp c in respect to the
burner a, in order that the greatest effect may be obtained in combining the
flames of the burners a and b. Figure 3 shews a plan of another arrangement
of burners; and Figure 4 is a front view thereof. In this case the holes of
the gas burner a are in a horizontal plane, the construction and combination of
the parts in other respects being similar to that shewn at Figures 1 and 2 ;
and Figures 5 and 6 shew a side view and plan, shewing that the holes for the
jets of gas may be in all directions. In those views the same letters are used
to indicate the same parts. And I would remark, that the position or direc-
tion of the flame or flames of gas of the gas burner used may be varied, so long
as it be combined with a burner suitable for burning naptha or other matter
capable of giving off smoke in being consumed.
Figure 7 shews a section of another arrangement of my Invention, wherein
the burner for consuming naptha or other proper fluid is an Argand burner,
the burner a passing up through the same; and in this case I prefer to use a

page_text: chimney d, the lower part of which is of glass, supported in the stems e, e, the
upper part of the chimney being of metal. By this arrangement the flames
will be bended upwards by the air flowing into the chimney from below
upward, as is shewn. f is a vessel which is similar to that used for table
lamps; and it will be seen that the chimney may be raised or lowered by
means of the stems being affixed to the ring g, which has a male screw formed
thereon, which, working in the female screw formed in the frame h, allows of
the position of the chimney being regulated. Figure 8 shews a plan of the
chimney, and Figure 9 shews a plan of the combined burners.
I will now proceed to describe the second part of my Invention. Figure 10
shews a section of a naptha lamp combined with a conical chimney, the
smaller diameter of the chimney being downwards, and the interior diameter
of the lower end should be about the same diameter as the external diameter of
the wick, and the chimney is to be supported at a position above the wick, so that
the air rushing into the chimney may have a beneficial effect in the flame, and
cause it to burn without smoke. is the vessel to contain oil or other suitable
matter, and the wick, which is moved up and down spirally, as is usual in-
Argand burners. k is a conical frame, on which the gallery l, which carries the
chimney, is placed, as is shewn. On the outer surface of this gallery is formed
a male screw to receive the ring m with a female screw, such ring having
stems n, n, to support the glass chimney, such stems carrying a band or
loop o, o, into which the glass chimney is placed, as is shewn. I would here
remark, that although I believe the arrangement of lamp shewn to be the best
for the purpose, yet I do not confine myself thereto so long as it be combined
with a glass chimney of the description shewn in the Drawings. Figure 11
shews a section of a lamp for consuming oil, having a conical glass combined
therewith, with suitable means of raising and lowering the same for the
purposes of adjustment; but the lamp itself is of an ordinary construction, and
forms no part of my Invention, and the construction of it may be varied, so
long as it be combined with a glass chimney of a conical shape, the smaller
diameter being downwards.
Having thus described the nature of my Invention, and the best means I
am acquainted with for performing the same, I would wish it to be understood
that I make no claim to any of the parts separately; but what I claim is,-
First, the mode herein described of obtaining light by combining a burner
suitable for burning inflamable gas or vapour with a burner suitable for con-
suming naptha or other matter, and in such manner that the flames of the two
burners combine together, as above explained. And,
Secondly, I claim the combining conical glass chimneys with naptha and

page_text: other lamps, in such manner that the smaller diameter of the chimneys shall
be downwards, as above described.
In witness whereof, I, the said Isham Baggs, have hereunto set my hand
and seal, this Twenty-fifth day of May, in the year of our Lord One
thousand eight hundred and forty-three.