IMPROVED APPARATUS OR APPLIANCE FOR EXTINGUISHING THE FLAME IN HYDROCARBON' OIL BURNERS
Year: 1877

page_text: LETTERS PATENT to Gustav Bülau, of Hamburg, in the Empire of Germany,.
and of Fleet Street, in the City of London, for the Invention of "IMPROVED
APPARATUS OR APPLIANCE FOR EXTINGUISHING THE FLAME IN HYDROCARBON'
OIL BURNERS."
PROVISIONAL SPECIFICATION left by the said Gustav Bülau at the Office of
the Commissioners of Patents on the 21st March 1877.
GUSTAV BULAU, of Hamburg, in the Empire of Germany, and of Fleet Street,
in the City of London. "IMPROVED APPARATUS OR APPLIANCE FOR EXTINGUISHING
THE FLAME IN HYDROCARBON OIL BURNERS."
This Invention relates to improved apparatus or appliance for extinguishing the
flame in hydrocarbon oil burners, and is especially applicable to ring or tube
burners in which circular wicks or flat cottons turned into ring or tube form are
used.
The Invention consists of two tubes, one of which is parallel for the whole of its
length, and one of conical shape. The top edges or ends of these tubes are about on
the same level, and they are arranged one inside and one outside of the wick holder
tube, in order that both may be raised together and to the same distance. The
lower ends of the two tubes are connected by a wire or metallic strip which is also
formed with a loop, into or through which one end of a rock lever is caused to
engage. The rock lever is hung upon a pin or wire of the exterior casing of the
burner, and has its free end projecting that it can be acted upon from the outside,
to raise the tubes first.referred to above the level of the wick holder, and thus by
shutting off the supply of air to the wick or wicks extinguish the flame.
In order that the tubes may be raised quite perpendicularly, which is necessary
to ensure the extinguishing of the flame, the lever must have free play at its inner
end. The said rock lever may be arranged in other manners if desired, or according
to the construction of the burner proper, and a small chain and weight can be
attached to the lever or to the connection wire, which weight may be released from

page_text: any holding appliance, and the fall of the weight would cause the tubes to lift and
extinguish the flame.
The application of the chain and weight is only to ensure the flame being
extinguished on an unusual tilting or upsetting of the apparatus taking place from
any cause.
By this Invention the usual unsafe practice of lowering the wick into the holder,
when it is desirous to extinguish the flame, is dispensed with, as is also the chances
of an explosion from the flame or lighted ashes reaching the oil reservoir.
'
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gustav Bülau in the. Great Seal Patent Office on the 21st September
1877.
GUSTAV BULAU, of Hamburg, in the Empire of Germany, and of Fleet Street, in
the City of London. "IMPROVED APPARATUS OR APPLIANCE FOR EXTINGUISHING
THE FLAME IN HYDROCARBON OIL BURNERS.".
This Invention relates to improved apparatus or appliance for extinguishing the
flame in hydrocarbon oil burners, and is especially applicable to ring or tube
burners in which circular wicks or flat cottons turned into ring or tube form are
used.
The Invention consists of two parallel tubes (preferably cylindrical), one of
which may be at same time the inner tube of the wick holder tube, while the other
is placed around the wick holder tube. The lower ends of the two tubes are
connected by a wire or metallic strip which is also formed with a loop, into or
through which one end of a rock lever is caused to engage which must have free
play at its inner end. The rock lever is hung upon a pin or wire of the exterior
casing of the burner, and has its free end projecting that it can be acted upon from
the outside to raise the tubes first referred to above the level of the wick holder,
and thus by shutting off the supply of air to the wick or wicks, in consequence
of which the flame is extinguished.
To ensure the flame being extinguished in the event of an unusual tilting or
upsetting of the apparatus from any cause, I attach to the rock lever or to the
connection wire a small chain and weight, which weight may be released from any
holding appliance, in order that the fall of the weight shall cause the tubes to rise
and thereby extinguish the flaine.
In the accompanying Sheet of Drawings my Invention is represented as applied
to a ring or tube burner, of which Figure 1 is a side view; Figure 2, a section;
and Figure 3, a ground plan; c the wick holder; d and d', the outer and inner
extinguishing tubes connected by the wire e, e; his the lever rocking upon pin i,
by means of which the tubes d, d', can be raised by pressing down its free end. A
weight g is attached to the free end of the lever / through a chain 8, and rests upon
a semi-cup holder 7, so that in the event of the apparatus being tilted or upset the
weight will fall and cause the extinguisher tubes to rise, and thereby suddenly
extinguish the flame.
Figure 4 shows the application of my extinguishing tubes to a burner furnished
with a conical wick holder c. In this case the outer surface of holder c is at its
.top end made cylindrical, and the outer extinguishing tube d slides upon this
cylindrical part v, its upper end being bent inwards to be close to the wick. The
inner tube d, which is likewise cylindrical, must be nearly the same diameter as
the inner diameter of the wick holder at its top end. This modification I
generally apply to existing burners which can be furnished with my appliance.
Having now described the nature of my said Invention, and in what manner the
same is to be performed, I declare that I claim,-
. Firstly. The arrangement and employment of moveable and combined extinguish-

page_text: ing tubes acting in the manner described, and substantially as shown in the accom-
panying Sheet of Drawings.
Secondly. I claim the mechanism for lifting the extinguishing tubes consisting of
a rocking lever in the manner described.
Thirdly. I claim the device of weight and chain operating automatically to effect
an extinguishing of the flame of hydrocarbon oil burners in the event of an unusual
tilting or upseting of the apparatus in the manner described.
In witness whereof, I, the said Gustav Bülau have hereunto set my hand
and seal, this Fourteenth day of September, One thousand eight hundred
and seventy-seven.