Improvements in and connected with Incandescence Gas Burners.
Year: 1899

page_text: Date of Application, 23rd May, 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in and connected with Incandescence Gas Burners.
I, JOSEPH BLASCO DE LÉRY, of 58, Pine Street, in the City, County and State of
New York, 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 parti-
cularly described and ascertained in and by the following statement:-
.
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This invention relates to incandescence gas burners and has especial reference
to those burners of the type described in the Specification of Letters Patent
granted to me No. 9940 of 1897 and which are now known as
burners." The objects of the present improvements are to facilitate the operations
"de Lery tassel
of renewing the tassels and of adjusting them upon the burners; to prevent the
deposition of soot or carbon upon parts of the burners; and incidentally, to effect.
an economy in the quantity of incandescing material and to ensure a brilliant
illumination.
In the especial burner referred to, the tassels are hung in a circle and are
respectively supported at the outer ends of the arms of a star-shaped frame, the
means for connecting each tassel with the arm being a spool saddled by the
incandescing material and slipped radially over the end of the arm. Owing
to the small size of the hole through the spool, and to the closeness of the ends
of the radial arms, it is a delicate operation to remove and replace tassels supported
in this way, without injury to other tassels already in place. Furthermore, the
star-shaped frame occupies a large portion of the area included by the circle of
tassels, and obstructs the draught besides providing a large surface upon which
soot and the products of combustion may collect. By my present improvements,
I provide a ready and simple means for adjusting the tassels whereby they may
be manipulated without danger of interfering with or injuring the neighbouring
tassels on the burner, and whereby a perfectly free vertical draught through the
circle of tassels is afforded.
For this purpose, my improvements consist in equipping each tassel with a hook
of suitable construction, and in providing the burner with a ring with which the
tassel hooks may be engaged, thus rendering the operation of adjusting any tassel
a very simple one. The ring is supported from a central hub by very small
radial arms, three being sufficient, thus leaving a practically unobstructed area
inside the ring. To prevent oscillation of the tassels, the ring may be a flat band
with its width vertical. This, and other details, is illustrated by the accompanying
drawings, to which reference will be hereinafter made. In these drawings,
Figure 1 is a perspective view of the burner, shewing some of the tassels in
place thereon;
Figure 2, is a side view of one of the tassels attached to the ring which is shewn
n section;
Figure 3 is a perspective view of a portion of the incandescing material just
before the hook is saddled by it;
Figure 4, is a perspective view of the hook; and
Figure 5, shews an elevation of the burner ring which may be emplaved.

page_text: The atmospheric gas burner d, terminates at its upper end in a circular head a¹,
which has gas outlets a³, arranged in a circle. A post b, projects upward from
the centre of the head and carries at its upper end a series of thin radial arms b',
which support the concentric flat ring with its width arranged vertically. The
tassels of incandescing material d, are hung vertically upon the ring 'c, in such
positions that their lower edges will stand opposite to the respective gas outlets a².
They may be made of knitted cotton impregnated with the known rare earth
oxides or other incandescing material, and of the shape shewn by Figures 2 and 3,
that is to say, they may consist of a rectangular piece of the material folded or
curled at the two opposite edges so as to form two parallel tubes. The herein before
mentioned hook or clip consists, as shewn by the drawings, of a U-shaped duplex
hook e, the horizontal member of which may be protected and enlarged by a small
tube of steatite, asbestos or other suitable material. For securing the incan-
descing material to the clip or hook, one end of the material is passed over the
horizontal member of the hook far enough to be caught and held by the binding
thread d. This produces on the outer face of the tassel d, a continuous surface,
and on the inner face, a pair of vertical tubes separated by a groove backed by
the continuous surface. In adjusting the tassel to the burner, the hooks e are
simply passed over the upper edge of the ring c, care being taken to present the
tubular part of the tassel to the flame. This operation of adjusting the tassel
to the burner is much simpler and less delicate than that which has to be practised
with the star shaped frame already herein referred to, and can be accomplished
with less liability of injuring the neighbouring tassels. The tassels thus made
are adapted to be adjusted to the burner before the cotton or other base has been
burnt out, and when placed upon the burner and fired, they shrink to their ulti-
mate dimensions and remain in place until their usefulness is ended. I have
therefore provided a new article of manufacture consisting of the impregnated
cotton tassel provided with a suspension hook or device.
In the operation of this burner it will be observed that the flame projected
from the burner outlet a², will strike the lower portion of the tassel hetween its
tubular parts and will impinge directly upon the continuous web which is pre-
sented outwards. The flame will travel upwards through the groove and the
tubular portions, and will bring the entire tassel to a high state of incandescence.
The elimination of the major part of the second leg of the tassel, results in a
considerable saving of material without any loss in the illumination produced by
the burner, since the portion removed is on the inner part of the circle where its
rays would be chiefly obstructed by the frame of the burner. The exact position
of the tassels upon the ring and their retention thereon, may be determined by
notches cut in the upper edge of the ring as shewn by Figure 5. The hooks fit
closely over the flat ring and thus largely prevent the swaying of the tassels.
Another advantage attending the use of these improvements is the fact that there
is provided a practically unobstructed area for the vertical draught through the
ring, the radial arms supporting it being very thin.
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 claim is:-
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1. In an incandescence gas burner, the combination of an atmospheric burner,
having an annular row of outlets, a ring supported concentrically above the
burner, and a series of independent tassels each of which is provided with means
for engagement with the ring, constructed and arranged substantially as and for
the purpose herein before described and as illustrated by the accompanying
drawings.
2. As a new article of manufacture, a tassel for incandescence gas burners of
the type set forth, consisting of a suitable knitted or other similar textile fabric,
impregnated with incandescing material and provided with a hook or clip by means
of which it may be supported from a suitable part of the burner, constructed and

page_text: arranged substantially as herein before described and as illustrated by the accom-
panying drawings.
3. In tassels for incandescence gas burners of the type set forth, constructing
the tassel with two inward curled edges and attaching it near one end to a clip
or the like, so that it may be suspended from some suitable part of the burner by
the clip and so also that the flame from the burner may impinge upon the curled
parts of the tassel and upon the part between them, substantially as and for the
purpose hereinbefore described and as illustrated by the accompanying drawings.
Dated this Twentieth day of May A.D. 1899.