Improvements in or relating to Bunsen Burners.
Year: 1898

page_text: Date of Application; 24th Sept., 1898-Accepted, 5th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in or relating to Bunsen Burners.
A communication from EMILE VERBEKE, of 39, Rue James Watt, Schaerbeek,
Brussels, in Belgium, Manufacturer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to a Bunsen burner of special construction. The burner
according to this invention comprises the following parts:
1st. A gas injector A arranged at the bottom of the burner and provided with
only one hole (Figs. 1 and 2).
2nd. Over the injector is mounted a tube B which is cylindrical for the
first 23 centimetres (Figs. 1 and 3) and then conical until the diameter is reduced
to one half. This cone 6 is nearly of the same length as the portion 6 of the tube
fitted on the gas injector A.
This tube 6 is provided with several holes 62 for freely admitting air.
3rd. Over the portion 6 of the tube B slides a burner tube C exactly fitting it
(Figs. 1 and 4). This burner-tube C may be of variable length (minimum 10 c.m.
from the base), and is constructed as follows:-
The lower portion sliding over the tube b is provided with as many holes c¹ as
the tube in Fig. 3, so that by turning the tube c the admission of air can be
regulated (Figs. 1, 3 and 4). At the part corresponding to the inner conical
portion 6, the tube or burner C is provided with one or more series of holes c
corresponding to the holes d of the concentric ring D rotatable about the circum-
ference of the tube C.
The ring 1 serves to close or open the holes c² for the purpose of regulating
the admission of air.
According to the purpose for which the burner according to this invention is
to be used, there is placed in the head of the tube c (Figs. 1, 4, 6 and 7) either
a metallic netting or a spiral E E¹ or any other baffle or obstacle. For instance
a metallic net is used in the head for rendering incandescent metallic net mantles
when the gas is under pressure.
A spiral or baffle E E' is used for gas the pressure of which is less than 150
millimetres.
The burner according to this invention is more particularly useful and suitable
for rendering incandescent metallic mantles such as different metallic nettings
capable of becoming incandescent.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is:-
the
The burner substantially as herein before described and illustrated in
accompanying drawings both
a
whole and

page_text: as the
said burner comprising 1st. The arrangement of air inlets as well
manner of regulating the supply of air, 2nd. The arrangement of a cone in the
interior of Bunsen burner, 3rd. The use of a grating or other suitable baffle plates
in the head of the burner.
Dated this 24th day of September 1898.
BOULT & WADE,
Agents for the Applicant.