Improvements in Atmospheric Burners.
Year: 1897

page_text: Date of Application, 1st Dec., 1897-Accepted, 29th Jan., 1898
COMPLETE SPECIFICATION.
Improvements in Atmospheric Burners.
I, ALEXANDER MELVILLE CLARK, of the Firm of A. M. & Win. Clark, of 53, Chancery
Lane, in the County of Middlesex, Fellow of the Chartered Institute of Patent
Agents, do hereby declare the nature of this invention (a communication to me by
The Diamond Light Company (Incorporated), of 55, West 42nd Street, in the City,
County and State of New York, United States of America) and in what manner the
same is to be performed; to be particularly described and ascertained in and by the
following statement :--
This invention relates to burners and has for its object to produce a new and
improved burner particularly of the Bunsen type, wherein the common liability of
flickering and unsteady light will be obviated. To this end the invention consists in
the construction hereinafter set forth and claimed.
The invention is illustrated in the accompanying drawings which show an
incandescent gas burner of the Sunlight type embodying the invention.
Figure 1 is a central vertical section through the burner,
Figure 2 is a sectional plan view thereof, the section being taken on line 2-2 of
Figure 1,
Figure 3 is a side elevation of the mixing chamber,
Figure 4 is a sectional side elevation of the device shown in Figure 3, the air
shutter casing being in section, and
Figure 5 is a section on line 5-5 of Figure 1 clearly showing the staggering of
the inlet openings of the mixing chamber.
In the drawing, a is a suitable mantle suitably mounted, as by means of the
supporting rod 6 which is supported from a cup c having a perforated cover d.
Entering the cup c is a burner gallery casing e forming part of the gallery f, which
burner gallery casing is entered by an outer mixing chamber casing g which is
supported by means of the nipple h. This outer casing g of the mixing chamber G
is suitably apertured as with apertures g¹ g² g³ g¹, as will clearly appear from an
inspection of Figure 5. Supported within the outer casing g is an inner casing i
apertured as at is it which apertures are staggered with respect to the apertures
of the outer casing, so that air blowing into the outer casing through its apertures
will not pass directly through the apertures of the inner casing, but will strike
against a solid portion of the inner casing and will be thereby deflected so as to
enter the said inner casing by a tortuous path. This will clearly appear by an
inspection of Figure 5, wherein the arrows 5 indicate the path of the air currents.
It will thus be observed that the air currents cannot by any possibility pass in a
straight or direct path to the interior of the inner casing and of the mixing chamber
so that objectionable flickering of the burner flame will be obviated. Surrounding
the outside casing g containing the straight-cut apertures g¹ g², g³, g' is an air
shutter casing j, provided with dumb-bell shaped apertures j', which dumb-bell
shaped apertures serve to break the current of air into practically two jets united by
a thin stream, as will be well understood. This shutter closely hugs the outside
casing and turns freely thereon so as to regulate the admission of air to the said
casing by covering up a greater or less portion of each aperture in the said casing.
DQ71

page_text: Having described the mixing chainber and its correlated parts, I will now proceed
to describe the mantle mounting. As before stated, the mantle a is carried upon the
rod b supported by the cup d and as heretofore mounted is extremely liable to
breakage when the burner is used in a position where it is exposed to vibration. This
cup c is provided with a skeleton guide embracing the gallery burner tube e, which
guide is shown in the present instance as a ring c¹ surrounding the tube e and joined
to the
cup
d by standards c². The lower part of the gallery burner tube is surrounded
by a spring c³ which spring supports an angular collar c' from which rise standards c
surrounded by coiled springs c. The guide of the mantle supporting cup or collar c
extends downward into the space between the collar c* and the gallery burner tube e.
The upper portion of the cup or collar c is provided with a flange c³, perforated for
the passage of the standard c³ and resting upon the coiled springs c surrounding the
said standards c5, so that the springs c3 and c will act to take up the stress of sudden
jars so that the mantle will not be broken when the burner is jarred.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. A mixing chamber comprising an inner apertured casing, a surrounding outer
apertured casing, the said casings being placed with respect to each other in such
manner as to bring each of the apertures of the outer casing opposite a solid portion
of the wall of the inner casing, combined with a perforated air shutter for regulating
the admission of air to the apertures of the outer casing.
2. The combination of an apertured inner casing and an apertured outer casing
having straight cut apertures substantially as shown, combined with an air shutter
surrounding the said outer casing and having dumb-bell shaped apertures co-operating
with the straight cut apertures of the outer casing to regulate the air supply thereto.
3. In a burner, the combination with a mantle support, of a cup or collar c, a
plurality of standards guiding the said cup, coiled springs surrounding the said
standards and supporting the cup and a spring supporting means for springily
supporting the standards.
4. In a burner, the combination of a mantle supporting cup or collar c, vertically
moving spring supported standards for guiding the cup or collar in its movement and
springs c co-operating with the standards and supporting the cup or collar,
substantially as described.
Dated this 1st day of December 1807