Improvements in Incandescence Gas Burners.
Year: 1897

page_text: Date of Application, 9th Nov., 1897
Complete Specification Left. 13th June. 1898-Accepted, 10th Sept., 1898
PROVISIONAL SPECIFICATION.
Improvements in Incandescence Gas Burners.
I, JOHN IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, Chancery
Lane, in the County of London, Consulting Engineer and Chartered Patent Agent,
do hereby declare the nature of this invention (as communicated to me from abroad
by Ottmar Kern, of 9, Avenue de l'Opera, Paris, France, Engineer), to be as
follows:-
--
In the Specification No. 294 of 1897 is described a form of incandescence gas
burner the tube of which, instead of being of uniform diameter throughout its
height, gently tapers to a smaller diameter at a constricted part about the middle
of its height and then gently tapers from the constricted part to a larger diameter
at the top.
According to the present invention a tube of the kind described is surmounted
by a casing which has a diameter about twice that of the upper mouth of the tube,
the height of this casing being about three fourths of the total height of the tube.
Within the casing is a shell of thin metal, preferably copper, perforated with
narrow approximately vertical slits. The shell has a diameter about equal to
that of the upper mouth of the tube.
On the top of the shell is fixed a disc which is notched all round its circumference
so that it presents the appearance of a toothed wheel, the teeth covering the
annular interval between the top of the shell and the mouth of the casing. The
air and gas admitted at the bottom of the tube are thoroughly mixed as they
ascend the tube and the casing, and the mixture issuing through the perforated
shell and then through the intervals between the teeth of the disc, when ignited
gives a flame having great intensity of heat, which playing on a refractory mantle
heats it to brilliant incandescence."
2007
Improvements in Incandescence Gas Burners.
I, JOHN IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, Chancery,
Lane, in the County of London, Consulting Engineer and Chartered Patent Agent,
do hereby declare the nature of this invention (as communicated to me from abroad
by Ottmar Kern, of 9, Avenue de l'Opera, Paris, France, Engineer), and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
In the Specification No. 294 of 1897 is described a form of incandescence gas
burner the tube of which, instead of being of uniform diameter throughout its

page_text: height, gently tapers to a smaller diameter at a constricted part about the middle
of its height and then gently tapers from the constricted part to a larger diameter
at the top.
According to the present invention a tube of the kind described is surmounted
by a burner which I shall describe referring to the accompanying drawings.
Fig. 1 is a vertical section and Fig. 2 is a plan of the top of the burner. It com-
prises a taper casing A which has a mean diameter about twice that of the upper
mouth of the tube B, the height of this casing being about three fourths of the
total height of the tube.
Within the casing is a taper shell C of thin metal, preferably copper, perforated
with narrow approximately vertical slits. The shell C at its top has a diameter
about equal to that of the upper mouth of the tube B.
On the top of the shell is a boss E on which is fixed a disc D that is notched
all round its circumference so that it presents the appearance of a toothed wheel,
the teeth nearly covering the annular interval between the top of the boss E
and the mouth of the casing A. The air and gas admitted at the bottom of the
tube B are thoroughly mixed as they ascend the tube and the casing, and the
mixture issuing through the perforated shell C and then through the intervals
between the teeth of the disc, and the annular space around them, when ignited
gives a flame having great intensity of heat, which playing on a refractory
mantle M heats it to brilliant incandescence.
The taper of the casing A and of the shell C may be varied; they may even
be made cylindrical without taper. Also the boss E may be of less depth than
is shewn, but it is preferred to have a considerable mass of metal to conduct heat
to the shell C from the disc D, thus preventing the disc from being overheated
and giving heat to the combustible mixture as it passes through the shell.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
A burner for incandescence gas lighting comprising an outer casing; an inner
perforated shell, a boss thereon and a disc having a serrated edge, arranged and
operating substantially as described with reference to the drawings.
Dated this 12th day of T1000
ABEL & IMRAY,
Agents for the Applicant.