Improvements in or relating to Incandescence Gas Lamps and Burners.
Year: 1899

page_text: Date of Application, 9th Sept., 1899-Accepted, 16th Dec., 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Incandescence Gas Lamps and
Burners.
I, EMANUEL CÉRVENKA, Merchant, of Karlsgasse 29, Prague, Bohemia, Empire
of Germany, 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:-
The present invention relates to an improved incandescence gas lamp and
burner suitable for use in place of electric incandescence lamps. The lamp may
be constructed in many modified forms, all differing essentially from the apparatus
used at present, in the arrangement of the gas-supply tube, such being placed
within the chimney or lamp cylinder in the bulb or like shape of the globe,
and in the novel arrangement of the burner. The light radiates all round in
any inclined position, and sheds downwards an unobstructed light.
The present invention is represented in the accompanying drawing, by way
of example,
Figure 1 being a vertical section of a lamp,
Figure 2 a top view of the burner,
Figures 3 and 4, illustrating constructive modifications of the burner.
Figures 5 and 6 show constructive modifications of the glass bulb, and
Figure 7 is a view of a complete 3-light lamp according to this invention.
As represented in Figure 1 the gas passes from the gas pipe a, through the
tube, made of thin metal, then through a glass tube e (which may however be
of metal) and through the bend k, into the burner.
The burner consists of a cylindrical chamber w, the top or cover of which is
provided with a central outlet, and a central pin or plug secured to the upper
closed end of the bent tube . From near the top of this bent tube & issue a
number, say four, of small branch tubes 7, their upper ends being directed
towards wings or baffles s spirally arranged around the central pin t, between
the latter and the side of the cylinder w. The spirally arranged baffles s serve to
effectively and intimately mix the gas issuing from the small tubes q with the
air simultaneously entering around them, through the lower part of the cham-
ber w, such arrangement rendering it possible to make the burner much shorter
than could be done with perpendicular, or open, i.e., unbaffled gas chambers.
The mixture, leaving the spiral ways, collects at the top where it is still
more intimately mixed, and finally leaves through spreading-plate z, and the
perforated or network cap u and arrives at the mantle, which is supported in
any convenient manner, as by a rod v.
Such an intimate mixture of air and gas can also be obtained by means of the
burners as represented in Figures 3 and 4.
The modification represented in Figure 3 illustrates a burner in which each
small gas passage issues into a separate cylinder e, contracted at the upper end
and provided with air-inlet openings o, from which the thus separately mixed
gas and air enters the top of the burner and passes through the meshes or perfo-
ations thereof, a deflecting hood or plate j being placed over the tops of the
ylinders, if desired.
The burner, represented in Figure 4 is essentially characterized by an adjust-
ble distributing and mixing tube m, the distance of which from the top or edge
f the gas supply pipe & can be regulated by screwing, the cylinder haine

page_text: provided with a screw thread engaging in a corresponding thread in a sleeve n
of the chamber g. By means of this arrangement the air current entering through
the lateral openings o, can be regulated according to requirements.
Such a lamp requires no chimney or cylinder; but essentially connected with it
is the specially constructed globe, bulb or the like. Whatever the shape of the
glass covers (globes, bulbs etc.) of these lamps, they all are closed at the bottom
(Figures 1, 5, and 6) and provided with an inner cylinder or chimney i arranged
within the part of the globe b, either by bending back a portion of the latter, or
by fusing or securing the former to the latter, which inner cylinder laterally
enclosing the gas-supply device, serves like an ordinary lamp-chimney. These
globes are provided, in the upper portion, with air inlet openings 7 (Figures 1,
5 and 6).
For the escape and dispersing of the gases of combustion a screen p is provided
over the lamp; the shape and form, as well as that of any decorative devices may
be of any desired description.
The globe or bulb may be secured to the holder (and outer shade, if used) by
means of a spring metal frame z or arms or any other device answering the pur-
pose may be employed, while the lamp itself may be secured to the gas pipe by
a bayonet joint y, screw or otherwise.
These lamps may be employed either singly on wall-brackets, or in series as
represented in Figure 7, and will give a shady and agreeable light.
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: :--
1. An incandescence gas-lamp and burner in which a gas supply tube, made
partly of metal, and partly of glass, or wholly of metal, and surrounded by a
combined glass globe and chimney provided with air inlet openings, terminates
in a burner cylinder in which the gas, entering through small branch tubes is
intimately mixed with air by baffles arranged round a central pin, such mixture
passing through a central outlet at the top of the cylinder and then through a
wire-netting or perforated plate arranged over the latter, substantially as
described.
2. In a lamp of the kind described a burner, comprising several cylinders
with contracted upper ends and lateral air inlets, one cylinder being placed over
each branch gas supply pipe, for the purpose of intimately mixing the gas with
the air; and a spreading hood or plate between the cylinder and the top of the
burner, substantially as described.
3. In a lamp of the kind described a burner comprising a mixing-tube as m
arranged over the gas inlet, and vertically adjustable for the purpose of regulating
the supply of air, substantially as described.
4. In a lamp of the kind described a globe, bulb or the like provided with a
cylindrical inner tube or part the two parts being made in one or suitably con-
nected together the globe portion being provided either in the upper part or in
the part where it is connected with the inner cylinder, with air-inlet openings,
substantially as described.
5. The complete incandescence gas burner substantially as described or illus-
trated in Figures 1, and 2, or in Figure 3, or in Figure 4 of the accompanying
drawings.
6. The complete incandescence gas globe and chimney substantially as described
or illustrated in Figure 1 or in Figures 5 and 6 of the accompanying drawings.
Dated this 8th day of September 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.