Improved Benzine Lamp.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improved Benzine Lamp.
I, LOUIS D'HAEMERS of 12 Rue Gaucheret Brussels, Belgium, Landlord, do hereby
declare the nature of this invention to be as follows:-
Several kinds of benzine lamps are in use, the principle of which is to evaporate
the benzine by means of a flame of this liquid, burning at the end of a wick under
a small vessel, into which benzine is conveyed by another wick.
Lamps constructed on this system are under the disadvantage that the flame from
the small wick is very smoky, so much so in fact as to blacken both the lamp-glass
and the outer wall of the little vessel in which the benzine is evaporated, the lamp-
black collecting on this wall and in the chimney which covers the small wick.
The heating conditions of the vessel are thus altered to such an extent that often
the lamp goes out after one or two hours' burning.
Attempts have been made to remedy these defects, by using instead of benzine,
certain liquids such as alcohol, burning without smoke. But the price of these
liquids is much too high and such attempts have not met with any success.
I have conceived the idea of employing the two liquids above named, using
benzine to produce the illuminating gas, and alcohol as the means of heating the
benzine.
For this purpose, I apply to benzine lamps, a spirit lamp solely to produce the
small flame which vaporises the benzine. This lamp may be of annular section
and simply placed on the benzine reservoir.
My lamp is composed of a benzine reservoir upon which is disposed a spirit lamp
emitting a small flame at the end of the wick which is regulated at will by any
suitable mechanism. This flame heats a little retort into which a wick is con-
tinually raising the benzine from the reservoir, where it is converted into a burning
vapour conveyed in any suitable burner. The small alcohol flame emitting neither
smoke nor lamp-black, the condition of evaporation remain unchanged and con-
sequently the lamp burns with perfect regularity. A further advantage is that
the consumption of alcohol is extremely small.
Dated this 29th day of September 1896.
L. DUVINAGE,
Agent for Applicant.

page_text: Improved Benzine Lamp.
I, LOUIS D'HAEMERS of 12 Rue Gaucheret Brussels, Belgium, Landlord, 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:―
There exist different systems of benzine lamps, in which the benzine vaporizes
by a flame of this liquid burning at the extremity of a wick under a small retort
whither the same liquid is continually being conveyed by a wick.
The lamps constructed after this system affording the serious disadvantage that
the small wick is very smoky, blackening both the glass and the exterior partition of
the small retort where the benzine vaporizes; the blacking of this smoke gathering
on to this partition and in the chimney covering the small wick, the conditions
of heating varying so greatly that the lamp often goes out after one or two hours
burning.
aff
To avoid these disadvantages one has thought of substituting liquids burning
without smoke such as alcohol for benzine. But the prices of these liquids being
too high, such attempts have failed.
I have contrived to combine the use of these two liquids just mentioned, in using
the benzine as gaslighting feeder and the alcohol as a liquid serving for the heating
of the benzine.
With this view, I have fitted to the benzine lamps an alcohol lamp exclusively
destined to produce the small flame which vaporizes the benzine.
The lamp represented in the annexed drawing in elevation Fig. 1 and in vertical
section Fig. 2, being likewise composed of a benzine well B, to the neck of which
a tube is screwed serving to stay the alcohol-well A, which is fastened over B.
This well A is annular that is to say crossed in the middle by a tube which
is fixed to and concentric of it.
A small tube Z fastened to the upper partition of this alcohol recipient allows
the tube p containing the alcohol wick to pass with a slight friction; last men-
tioned tube being joined to a socket with curbings m guided by a rod n which is
secured to the alcohol recipient; a second curbing of the socket m holding the
extremity of a threaded rod operated from the outside by a milled button L and
serving to regulate by either raising or lowering the tube p, the intensity of the
heating flame C: the wick C constantly feeding this flame.
On to the alcohol reservoir A. a tubular portion K is based provided with a small
eye-hole R which opens, in order to light the alcohol burner; a tube T dipping into
the benzine-well passes through the upper part of the latter which is firmly joined
to it and passes through the central point of the well A; at the height of the
eyehole of the tubular portion, said tube T has a closed branching D forming the
retort and overhanging the alcohol flame which heats and vaporizes the benzine
conveyed into the retort by the wick E, which at the other end dips into the
-benzine.
Tube K is surmounted by the burner-apparatus which consists of a tube Q
widened towards its lower portion, this widened portion being provided with
openings JJ allowing the outer air to mix with the benzine vapours in tube Q
to be conveyed for combustion; tube Q being surmounted by a burner-apparatus
closed by a small plate with holes b.
A rod t passing into two slides qq serving to support the incandescent cap which
may be either raised or lowered; a thumb-screw G serving to fix it.
On to tube Q is attached the support of the lamp-glass having openings to admit

page_text: the air required for combustion. The tubular portion K being provided with
holes O Of allowing the access of air and the open space between A & B likewise
permitting the fresh air to pass through holes o, so as to avoid the heating of the
benzine-well; last mentioned as well as the alcohol-well having small tubes X & Y
for the filling and being closed by thumb screws.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. An improved benzine lamp using two liquids one of which burns without smoke
such as alcohol serving to vaporize the other such as benzine, the vapour of which
burns to yield light; this lamp being characterized by the use of a small retort D,
under which the alcohol is burning, the flame of which may be regulated by a screw,
and also characterized by two wells, the lower one serving to contain the benzine,
the upper one containing the alcohol for heating and the regulating-apparatus of
said heating, as described.
2. An improved benzine lamp substantially as described.