IMPROVEMENTS IN THE CON- STRUCTION OF BURNERS FOR LAMPS
Year: 1864

page_text: LETTERS PATENT to Isaac Watts, junior, of the City of Manchester,
Commercial Clerk, for the Invention of "IMPROVEMENTS IN THE CON-
STRUCTION OF BURNERS FOR LAMPS."A communication from abroad by
Theodore Bourne and James Edgar, both of the City, County, and
State of New York, in the United States of America.
Sealed the 14th March 1865, and dated the 22nd September 1864.
PROVISIONAL SPECIFICATION left by the said Isaac Watts at the
Office of the Commissioners of Patents, with his Petition, on the 22nd
September 1864.
I, ISAAC WATTS, junior, of the City of Manchester, Commercial Clerk,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF BURNERS FOR LAMPS," (a communication to me from
abroad by Theodore Bourne and James Edgar, both of the City, County, and
State of New York, in the United States of America,) to be as follows:-
The object of this Invention is to dispense with the draught chimney
usually required for lamps in which camphine, paraffine, and other volatile
oils are consumed.

page_text: In performing this Invention the tube for the wick and the apparatus for
raising the wick are made as usual, but the wick tube is surrounded by a
perforated casing, which is made in two parts connected together. To the
lower part is fixed the wick tube, and the upper part is circular below and
tapered upwards, terminating in a flat slot with overhanging lips and open 5
sides at the top. This casing supplies the requisite air to the wick for
the combustion. of the volatile oil, and gives also the desired protection to the
flame.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Isaac Watts in the Great Seal Patent Office on the 21st
March 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ISAAC WATTS,
junior, of the City of Manchester, Commercial Clerk, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of September, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Isaac Watts, junior, Her special license that I, the said Isaac
Watts, jun, my executors, administrators, and assigns, or such others as
I, the said Isaac Watts, jun', 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 THE CONSTRUCTION OF BURNERS FOR LAMPS," a communi-
cation to me from abroad by Theodore Bourne and James Edgar, both of the
City, County, and State of New York, in the United States of America, upon
the condition (amongst others) that I, the said Isaac Watts, jun', my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and ascer-
tain 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 Isaac Watts, jun", do hereby declare
the nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement (that is to say):
The object of this Invention is to dispense with the 'draught chimney
usually required for lamps in which camphine, paraffine, and other volatile
oils are consumed.
In performing this Invention the tube for the wick and the apparatus for
raising the wick are made as usual, but the wick tube is surrounded by a
perforated casing; it is circular below and connected to the wick tube. The
upper part is tapered and terminates in a flat slot with overhanging lips and
open sides. This casing supplies the requisite air to the wick for the
combustion of the volatile oil, and gives also the desired protection to the
flame.
And in order that this Invention may be fully understood, I will proceed to
describe the several Figures of the accompanying Sheet of Drawings.
Figure 1 is a front view of the improved burner; Figure 2 is an edge
view, Figure 3 is a transverse section, Figure 4 a plan, and Figure 5 a
longitudinal section of the same.
In these views a is the tube for the wick, and 6 is a cross shaft with two
small catch wheels and a milled button, forming the apparatus for raising the
wick in the usual manner; c is a perforated casing surrounding the wick tube.
The perforations are to admit air for effecting the perfect combustion of the
camphine, paraffine, or other volatile oil to be consumed. These perforations
may be made as shewn, or in any other convenient manner. The lower end
of the casing C is circular, and it is soldered or otherwise secured to the lower
casing d, which is also perforated to admit air to the flame, and the lower
casing d is connected to the wick tube by the disc e. The upper part of the
casing c is gradually tapered, and terminates in a flat slot with overhanging
lips f and open sides g. The top of the wick tube is rather below the top of
the casing c, and consequently the lips protect the flame from the surrounding
air, while the peculiar shape of the open sides g, with the perforations in the
upper and lower casings c and d, supply sufficient air to the flame to create
the draught and to support combustion; thus rendering the draught
chimney unnecessary. To the lower end of the lower casing d is soldered
or secured the ring h, by which the burner is connected to the lamp.
Having thus described the nature of the Invention and the manner of
performing the same, as communicated to me by the within-named Theodore
Bourne and James Edgar, I declare that I claim,―
Firstly, the improved mode of constructing burners for lamps in which

page_text: volatile oils are consumed, whereby the draught chimneys usually employed
are dispensed with, substantially as set forth and described herein.
Secondly, I claim the overhanging lips applied to burners for lamps,
substantially as described.
In witness whereof, I, the said Isaac Watts, jun", have hereunto set
my hand and seal, this Twentieth day of March, One thousand eight
hundred and sixty-five.'