Improvements in Incandescent Gas Burners.
Year: 1896

page_text: Date of Application, 8th Apr., 1896-Accepted, 30th May, 1896
COMPLETE SPECIFICATION.
Improvements in Incandescent Gas Burners.
I, EMIL HEINRICH CONRAD OEHLMANN, of 131 Linien Strasse, Berlin,.
Germany, Engineer, 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 :-
This invention has for its object to construct an incandescent gas burner capable
of giving an intense yet steady heating flame. This object is attained by providing
the burner with a number of tubes of small diameter having passages between them
for the inlet of air and provided at their interiors, with partitions or obstructions.
of suitable form which split up or divide the streams of gas and air passing through
the tubes.
And in order that my said invention may be properly understood I have-
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a vertical section of the improved burner.
Fig. 2 is a plan of the burner.
Fig. 3 shows in vertical section one of the tubes and in plan different arrangements.
of the partitions or obstructions for the tubes.
Fig. 4 shows in side view and Fig. 5 in plan a modification of the burner.
Referring to the drawings:-
The mixing chamber a, in which is inserted wire gauze or perforated metal 6 for
promoting, in a well known manner, the mixture of the gas and air passing there-
from, is surmounted by a burner A consisting of a flanged bottom plate C in which
is fitted a number of small vertical tubes d. Each tube d is provided at its interior
with an obstruction or partition e. Spaces are left between the tubes for ingress
of air to the centre of the flame.
An inverted cone g can, if so desired, be arranged below the plate C for the
purpose of directing the air and gas from the chamber a to the tubes d.
The partitions or obstructions e may consist of mere strips of sheet metal fitted
across the tubes. They may be of any of the forms shown in plan view at Fig. 3
and they can be fitted in any part of the interior of the burner tubes. In some
cases double strips can be fitted across the tubes, or, if preferred, single broad.
strips can be used in lieu of the double strips.
In the modification shown at Figs. 4 and 5 the obstruction takes the form of a.
ring B which is fitted on top of the tubes and is held in place in notches or slits
therein. This ring also serves to bind the tubes together. The small view at the-
right hand side of Fig. 4 shows part of the ring as it appears when fitted in a
tube d. The tube is sectioned.
Instead of using small tubes, as hereinbefore described, the burner may be
formed of a ring which is provided with channels or ducts for the passage of the.
gas and air mixture. Obstructions are fitted in the channels or ducts in the same.
manner as before described.
It is not absolutely necessary that the obstructions should be fitted in the
interior of the tubes d, as they may be arranged over the outlets of the tubes or in
prolongations thereof without departing from the invention which consists.
essentially in the use of a burner provided with tubes or channels having combined
with them partitions or obstructions for the purpose of producing an intense yet.
steady flame for heating the mantle.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I consider novel and desire to claim is :-
1. A burner for incandescent gas lamps consisting of a number of tubes or
channels extending upward from the mixing chamber and which are provided with
partitions or obstructions, substantially as and for the purpose hereinbefore set
forth.
2. A burner for incandescent gas lamps consisting of a number of tubes
extending upward from the mixing chamber and provided with a ring, such as B,
fitted on top of the tubes, substantially as herein before described with reference to
Figs. 4 and 5 of the drawings annexed.
Dated this 7th day of April 1896.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.