Improvements in Gas Burners.
Year: 1893

page_text: Date of Application, 11th Mar., 1893
Complete Specification Left, 10th Nov., 1893-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Gas Burners.
WARREN BODEN SMITH 66 College Street Chelsea S.W. Sanitary Engineer
do hereby declare the nature of this invention to be as follows:-
:-
My invention consists in heating a cage or cages of wire or other material
sufficiently refractious-i.e. having sufficient heat resisting properties-by means of
a burner of special construction and design. This burner is so constructed that
the gas mixed with a quantity of air issues at a high velocity thus concentrating
the flame and resulting in an intense heat rendering the cage incandescent. The
action of the burner depends upon the energy due to the gas being above
atmospheric pressure being used up in giving a high velocity to the mixed gasses
to and at the orifice from which the flame issues. This is attained by having a
very small outlet in the chamber where the gasses are mixed resulting in a flame
similar to that obtained with a blow pipe.
Dated this 11th day of March 1893.
WARREN B. SMITH.
Improvements in Gas Burners.
I WARREN BODEN SMITH 66 College Street Chelsea S.W. Sanitary 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:—
My invention consists in heating a specially constructed cage of wire or other
material sufficiently refractious-i.e. having sufficient heat resisting properties-by
means of a burner of special construction and design. This burner is so constructed
that the gas with a quantity of air issues from the burner at a high velocity thus
concentrating the flame and resulting in an intense heat rendering the cage
incandescent. The action of the burner depends upon the energy due to the gas
being above atmospheric pressure being used up in causing the mixed gas and air
to issue from the outlet of the burner at a high velocity producing a flame of intense
heating power.
I obtain this result by employing an air burner with a very small outlet from the
mixing chamber. Outlet see letters M O.
By the term "outlet from the mixing chamber" I denote that portion of the
outlet that is most constricted-(i.e. smallest, most reduced) between or at the
letters M and O. If however the outlet at M is as small as any other part of
the outlet MO then I denote M to be the "outlet from the mixing chamber."
The mixed gas and air may be consumed immediately outside the mixing
chamber see Fig. 1 (a) but I prefer to elongate the burner as shewn in Fig. 1 (b).
This tubular elongation serves as a guide to or fixing for the cage and also forms a
convenient fixing for a triangle to support chimney or shade.
It is advisable to set the gas jet in the mixing chamber as nearly as possible in
the axis of the burner. Gas supply jet see Fig. 1 G.
By the "mixing chamber" I denote the part of the burner in which the gas and
air intermix. Air inlets are shewn letters I.

page_text: The cage is constructed without any wires crosswise to the principal part of the
flame-i.e. where the principal heating of the wires takes place-all the wires being
approximately in planes containing the axis of the flame. These wires or filaments
are kept in their proper relative positions by means of two collars or rings one at the
bottom and the other at or near the top of the cage see Fig. 2. The bottom collar
of the cage is free to move up and down to allow for expansion and contraction of
the wires. If the bottom of the cage were fixed the wires must be kept sufficiently
taut by the support at top.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. A. self acting atmospheric gas burner having the outlet from the mixing
chamber less than one 1 thirtieth of a square inch in area substantially as herein
described.
2. A cage heated by gas having its wires or filaments in planes common to the
axis of the burner or nearly so and without crosswires in the principal part of the
flame substantially as herein described.
3. A cage heated by gas having a collar or ring attached to the bottom free to
move vertically retaining the filaments in their relative positions substantially as
herein described.
Dated this Twenty-fifth day of January One thousand eight hundred and
ninate frum
WARREN B. SMITH.