Improvements in Gas Burners.
Year: 1895

page_text: Date of Application, 31st Oct., 1895-Accepted, 7th Dec., 1895
Improvements in Gas Burners.
I, CHARLES KNAPP, of 414 Commercial Building, St. Louis, Missouri, United
States of America, Gentleman do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention has relation to improvements in gas burners and consists in the
novel arrangement and combination of parts more fully set forth in the Specification
and pointed out in the claims.
In the drawings, the figure is a middle vertical section taken through the burner
and the ordinary tip and shell supporting the same.
One of the objects of my invention is to construct a gas burner which can be
placed over the ordinary shell and tip usually secured to the gas fixture, without
the employment of screw threads, whereby the burner can be readily removed and
replaced. Another and very important feature of my invention is a superheating
dome which is heated by the illuminating flame of the gas and wherein the gas is
expanded before it is consumed at the burner tip. By this means I produce a soft
flame and one that has a maximum amount of illuminating power for the quantity
of gas consumed. Generally the burner consists of a base having a conical bore
which is adapted to receive the ordinary shell and tip; of a dome having a closed
top into which the gas first issues and within which it is superheated; of an annular
chamber below the same; of a contracted annular passage connecting the interior
of the dome with the chamber; of arms forming a part of the burner and having
upwardly turned ends for receiving ordinary gas tips of large capacity; of passages
formed in said arms and in communication with the tips and chamber; of an upper
deflecting wall for the dome for properly directing the gas and causing the same
to follow the heated wall of the dome; of an ordinary shell carrying a tip of small
capacity communicating with the interior of the burner, and of other details to be
hereinafter described. .
Referring to the drawings, 1 represents the burner and 2 the base of the same.
Formed in said base and extending a suitable distance above the lower edge
thereof is a tapering bore 3, and immediately above the same and in communication
therewith is an annular enlarged chamber 4 into which the gas passes before it
issues to the burner tips. 5 represents two arms which in the present instance
project in opposite directions and each of which is provided with upwardly turned
ends 6; and formed in said arms and ends are passages 7 one end of which is in
communication with the enlarged chamber 4. In carrying out my invention
I employ what are commonly known as twelve-foot tips 8, the same being inserted
into the upwardly turned ends of the arms and from these tips the gas is burnt,
the flame impinging against the dome 9. The dome 9 is provided with a closed
top and extends a suitable distance above the arms 7, and midway between the
tips 8.
An inwardly concave nipple 10 is formed in the inner upper end of the
dome 9 for deflecting the gas issuing from the gas-supply tip 11, the gas being in '
this was compelled to follow the heated walls of the dome as shown by the arrows
in the figure. The nipple being enlarged retains a certain amount of heat and
thus ensures the thorough heating of the entire dome. The inner chamber 12 of
the dome is contracted at the basal portion forming a narrow contracted passage 13
about the upper end of the shell 14 when inserted into the burner as shown in the
figure. By this contraction the gas is forced to follow the path indicated by the

page_text: arrows, that is, it fills the chamber 12 first and then escapes by way of the contracted
passage 13 into the annular enlarged chamber 4 whence it passes into the passages 7
of the arms 5 and finally to the tips 8. In practice a two-foot tip 11 is used which
supplies the necessary amount of gas. Of course any number of arms 5 may
radiate about the burner although only two arms are shown in the present
instance.
Having now particularly described and ascertained the nature of my inven-
tion, and in what mauner the same is to be performed, I declare that what I
claim is:
1. A gas burner consisting of a base, an opening in the same, a dome having a
closed deflecting top in communication with said opening, suitable arms, passages
formed in said arms, tips fixed into the outer end of the same, and an ordinary
shell and tip inserted into the opening of the base, the tip projecting into the dome,
substantially as set forth.
2. A gas burner comprising a base, an opening in said base, a dome having a
closed deflecting top mounted above said opening and in communication therewith,
an ordinary shell inserted into said opening, a gas supply tip carried by the upper
end of the shell and projecting into said dome, arms located above the base, and
below the supply tip, passages formed in said arms, and tips carried by said arms
from which the flame issues and impinges upon said done, substantially as set
forth.
3. A gas burner comprising a base, an opening in said base, an annular enlarged
chamber above said opening, a hollow dome, a contracted annular passage at the
base of said dome and communicating with the annular chamber, arms carrying
suitable tips, passages in said arms in communication with the tips and chamber, a
shell passed into the opening of the base and extending into the contracted
passage, and a supply tip carried by said shell and projecting into the dome,
substantially as set forth.
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