IMPROVEMENTS IN AND IN CONNECTION WITH GAS RUDNEDS AND OTHED RIDNING
Year: 1881

page_text: LETTERS PATENT to Henry Harrison Doty, of No. 449, Strand, in the County
of Middlesex, Gentleman, for an Invention of "IMPROVEMENTS IN AND IN
CONNECTION WITH GAS RUDNEDS AND OTHED RIDNING "
PROVISIONAL SPECIFICATION left by the said Henry Harrison Doty at
the Office of the Commissioners of Patents on the 12th April 1881:
HENRY HARRISON DOTY, of No. 449, Strand, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN AND IN CONNECTION WITH GAS BURNERS AND
OTHER BURNERS."
My Invention relates to that class of gas and mineral, or other oil burners
known as argand or circular gas burners, and also to duplex and triplex burners,
and has for its object the more complete or entire combustion of the volume of gas
issuing therefrom, thereby creating a greater intensity of light than has hitherto
been attainable.
My Invention consists as follows:-I carry up centrally within the circular
burner a rod or spindle. Upon this central rod or spindle I place two, three, or
more discs one above the other, and of different and increasing diameters, the
smaller below and the next size above, and so on, the larger ones being preferably
placed above the smaller according to their size. These discs are cut away or
slotted, or perforated in such manner that the slots radiate outwardly from near
to the centre of the discs, so as to leave these discs somewhat of a star or double
Maltese cross shape. The central rod or spindle I make, by preference, with a
thread or screw, so that the position of the discs thereupon may be regulated at
will. In connection with the burner thus formed I use a glass or chimney which
is of a bulb shape at that part where it surrounds the said discs. By these means
the current of air passing up through the centre of burner is caused to impinge
upon the inner part of the flame at different or certain parts of the said flame in
such manner as to produce the more complete combustion of the gas, resulting not
only in economizing the gas but in obtaining a greater intensity of light, as a tulip
shaped flame of large proportions is obtained, giving a much greater light than has
hitherto been obtained with a given consumption of gas.
Instead of the star or double Maltese cross shaped discs above mentioned I may
use metal discs with other shaped perforations, or discs of wire gauze, tale, glass, or
other suitable material.
When I apply my Invention to duplex or triplex burners I vary the shape of the
discs correspondingly thereto.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Harrison Doty in the Great Seal Patent Office on the
12th October 1881.
HENRY HARRISON DOTY, of No. 449, Strand, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN AND IN CONNECTION WITH GAS BURNERS AND
OTHER BURNERS."
My Invention relates to that class of gas and mineral, or other oil burners known
as argand or circular gas burners, and also to duplex and triplex burners, and has
for its object the more complete or entire combustion of the volume of gas issuing
therefrom, thereby creating a greater intensity of light than has hitherto been
attainable.
My Invention consists as follows:-I carry up centrally within the circular
burner a rod or spindle. Upon this central rod or spindle I place two, three, or
more discs one above the other, and of different and increasing diameters, the
smaller below and the next size above, and so on, the larger ones being preferably
placed above the smaller according to the size. These discs are cut away or slotted,
or perforated in such manner that the slots radiate outwardly from near to the centre
of the discs, so as to leave these discs somewhat of a star or double Maltese cross
shape. The central rod or spindle I make, by preference, with a thread or screw,
so that the position of the discs thereupon may be regulated at will. In connection
with the burner thus formed I use a glass or chimney which is of a bulb shape at
that part where it surrounds the said discs. By these means the current of air
passing up through the centre of burner is caused to impinge upon the inner part
of the flame at different or certain parts of the said flame in such manner as to
produce the more complete combustion of the gas, resulting not only in economizing
the gas but in obtaining a greater intensity of light as a tulip shaped flame of large
proportions is obtained, giving a much greater light than has hitherto been
obtained with a given consumption of gas.
Instead of the star or double Maltese cross shaped discs, above mentioned, I may
use metal discs with other shaped perforations or discs of wire gauze, tube, glass,
or other suitable material. When I apply my Invention to duplex or triplex
burners I vary the shape of the discs correspondingly.
Figure 1 on the accompanying Sheet of Drawings represents a front view of a
glass burner to which my improvements are adopted; Figs. 2, 3, and 4, plan
views of the discs employed, and of different diameters; Fig. 5 is a perspective
view of a duplex burner for burning mineral or other oils, being fitted with a
modification of my improvement; Figures 6, 7, and 8 shew plans and elevations of
the same.
In Figure 1 A is a rod or spindle of. brass or other metal, the upper
part of which is formed with a screw and the lower part is fixed to the frame of
burner a screw. On the top of this rod is screwed the upper and largest disc, and
is perforated with holes or rational slots to admit air to the gas flame; C and D
are similar perforated discs, but of smaller and varying diameters.
The discs are screwed on the spindle at a suitable distance apart, so as to obtain
the best effect, their object being to deflect the gas flame and thus admit more air
to the centre, and thereby cause more perfect combustion than hitherto obtained.
Figure 5 shows a deflector E made of brass or other metal of an oblong shape
fitted to the top of the spindle or rod E. Underneath is placed another deflector G
which is perforated with holes. This rod is fixed to the lower part of the burner,
as shown in Figure 8.
Having thus described the nature of the said Invention, and the manner in which
it may be carried into effect, I wish it to be understood that I do not confine

page_text: myself to the exact details of construction as herein described, reserving the right
to modify the same, but what I claim as my Invention and desire to be secured by
the hereinbefore in part recited Letters Patent is,-
First. The construction of argand or other circular gas burners with a central
rod or spindle with perforated or slotted discs, as shown in Figures 1, 2, 3, 4 of the
annexed Sheet of Drawings.
Secondly. Constructing duplex or triplex oil lamps with deflecting plates
attached to a spindle, as shown in Figures 5, 6, 7, 8, of the accompanying
Drawings.
In witness whereof, I, the said Henry Harrison Doty, have hereunto set my
hand and seal, this
day of
One thousand eight hundred and eighty one.
in the year of our Lord
7047
DATAA
PART
HENRY HARRISON DOTT. (L.S.)