Improved Incandescent Vapour Lamp with Vapour Generator.
Year: 1894

page_text: Date of Application, 11th July, 1894-Accepted, 18th Aug., 1894
COMPLETE SPECIFICATION.
Improved Incandescent Vapour Lamp with Vapour Generator.
I, CONRAD SCHINZ, Swiss Cousul at St. Petersburg, 52 Quai de la Sontanka,
St. Petersburg, Engineer, do hereby declare the nature of my invention and in
what manner the same is performed to be particularly described and ascertained in
and by the following statement:-
The present invention consists of a portable incandescent vapour lamp having a
vapour generator and adapted to consume the lighter kinds of hydrocarbons, the
said hydrocarbon being first vaporized, the vapour formed then emitted in a fine
jet into a tube open at both ends, into which it draws air after the manner of an
injector, and mixing therein with the said air, is ignited at the upper end of the
tube where it burns as an intense blue flame, sufficiently intense to bring the "Auer"
filament to a white glow.
And in order to make this Specification more easily intelligible reference is had
to the accompanying drawings in which similar letters denote similar parts
throughout the several views:
Fig. 1 being a vertical section through a lamp constructed according to my
invention, taken along the line A, B, in Fig. 2, which is a side elevation of the lamp
seen from a position taken at right angles to that of Fig. 1,
Fig. 3 is a horizontal section on the line C D in Fig. 1,
Fig. 4 is a plan of the gas retort and burner and
Fig. 5 an elevation of the complete lamp on reduced scale.
The reservoir a is provided with an inlet for the hydrocarbon, closed by means
of a thumb screw a' and centrally mounted therein is a tube fenclosing a somewhat
stout wick h, said tube together with the wick extending down nearly to the bottom
of the reservoir and advantageously being closed at the bottom by a perforated cap -
as shown at Fig. 1. A second tube d encloses this tube f leaving an air space
around the said tube as shown in Fig. 1, said outer tube closing tightly into the
reservoir at its upper end and tightly round the inner tube at its lower end so that
the air is free to play around the inner tube along its whole length. The upper
end of the said tube is enlarged at k to form a retort in which the hydrocarbon
fed thereto by the suction wick is vaporized and may escape in a fine jet at / at
the upper part of the said retort. The said retort extends laterally (Fig. 1) so
that the body of the same lies over and above a second wick n smaller than the
first and carried in a tube m. extending to the bottom of the reservoir and also
advantageously having a perforated cap at its lower end. The tube m which
carries the wick is arranged to slide in a sleeve m' fixed in the cover of the reservoir
and may be adjusted, i.e. raised or lowered by means of the rod m³ having screw
thread and operated by the micrometer screw g, the tube m of the wick being
rigidly connected to the rod m³ by a band or strip of metal m³. A flue or
chimney encloses the retort and the wick n, said chimney being mounted on two
rods ee on which it may be slid back by means of the handle or button a to enable
the ignition of the wick n. t is the tube into which the vapour escaping at the
nozzle flows, said tube being supported on the tubular standards ss the interior
of which communicates with the interior of the reservoir at their lower ends and
with the interior of the tube at the upper ends thus forming the air inlet and
outlet to the said reservoir.
The lamp is manipulated in the following manner :-
The chimney is drawn back to leave the wick n free and the latter is ignited,
and the chimney replaced. In about a minute or less, the flame playing on the
retort will cause the vapours and hydrocarbon drawn up by the wick h to

page_text: vaporize and vapour at a pressure will escape at the nozzle entering the tube t
and drawing air in with it after the manner of an injector, with this air it mixes
intimately in the said tube and on ignition at the upper end of the tube t will burn
in an intense blue flame capable of bringing the "Auer" filament arranged above
it to a white glow. The vaporization can be regulated by regulating the position
of the wick n by means of the screw 9 and when the lamp is to be extinguished it
is only necessary to turn down the wick n until the flame goes out the rest of the
vapour present in the retort will then be burned and the upper flame will also go
-out. It is advisable that the flame of the wick n be not allowed to play directly
onto the walls of the retort k but just under the retort; the air jacket around
the tube will prevent the heat of the same from being communicated to the
hydrocarbon in the reservoir so that all danger of explosion is effectually
precluded.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is performed I declare that what I claim is :-
:-
1. An incandescent lamp consisting of the combination of a reservoir a suction
wick extending from the said reservoir to a retort arranged above it, a retort
arranged above the said wick and having a nozzle pointed upwardly, a smaller
wick arranged under the laterally extending retort, a chimney to enclose said
retort and smaller wick, and an open tube arranged above the said nozzle and
means to adjust the position of the said smaller wick substantially as described.
2. In a lamp the combination of a reservoir, a suction wick extending down into
the said reservoir, a tube enclosing said suction wick, an air jacket around said
tube at that part of the same which extends down, into the reservoir, a laterally
extending retort at the top of the said tube, a smaller wick arranged under the said
retort, a chimney to enclose said retort and smaller wick, a nozzle at the top of said
retort and an open tube arranged above said nozzle, and means for adjusting the
said smaller wick substantially as described and shown.
3. In a lamp the combination of a reservoir, a suction wick arranged therein, a
tube enclosing said suction wick, an air jacket around said tube as specified, a
laterally extending retort at the top of said tube, a smaller wick arranged under
the said retort, a chimney to enclose said retort and smaller wick stationary rods e e
upon which said chimney may slide, a nozzle at the top of the retort and an open
tube arranged above said nozzle and means for adjusting the position of the said
.smaller wick substantially as described.
Dated this 11th day of July 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.