AN IMPROVED BURNER FOR VOLATILE OIL LAMPS
Year: 1879

page_text: LETTERS PATENT to Friedrich Hermann Felix Engel, Civil Engineer and
Patent Agent, of Hamburg, in the German Empire, for the Invention of "AN
IMPROVED BURNER FOR VOLATILE OIL LAMPS." A communication from
Ernst Golstein, of Hamburg, in the German Empire.
PROVISIONAL SPECIFICATION left by the said Friedrich Hermann Felix
Engel at the Office of the Commissioners of Patents on the 1st February
1879.
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, of
Hamburg, in the German Empire. "AN IMPROVED BURNER FOR VOLATILE OIL
LAMPS." A communication from Ernst Golstein, of Hamburg, in the German
Empire.
This Invention relates to burners of lamps constructed for the combustion of
naphta, hydrocarbons, and other volatile oils: The improved burner is constructed
as follows: A cylindrical tube of length sufficient to reach down to the bottom (or
nearly so) of the vessel containing the volatile liquid is employed. This tube
Over the
contains a wick of cotton with an inner cylindrical core of wire gauze.
upper part of this wick-tube and outside the vessel is placed á second tube which
exactly fits the inner tube. The outer tube is on the top furnished with a cover
containing a number of small borings or perforations for the volatile evaporations or
gases from the oil to pass through from the oil vessel of the lamp to the open air,
that is, to the point of combustion. The gases when ignited give a number of
flames more or less near to each other, and of volume corresponding to the number
and size of the borings. Within the outer tube and near to the mouth of the inner
tube a plug is fastened, furnished with four or more borings to allow the gases to
pass through. By means of an eccentric or cam disc fastened to the end of a piece
of wire placed in a bearing of the vessel, the outer tube can be lifted or lowered on
the inner tube, in consequence whereof the inner plug will open or close the mouth
of the wick tube more or less, in consequence of which more or less gas will be
allowed to pass from the vessel to the flames of the burner, and thus is afforded a
means to regulate the volume of the flames:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Friedrich Hermann Felix Engel in the Great Seal Patent Office on
the 1st August 1879.
-
FRIEDRICH HERMANN FELIX ENGEL,-Civil Engineer and-Patent Agent, of
-Hamburg,-in-the-German-Empire. "AN IMPROVED BURNER FOR VOLATILE OIL
LAMPS." A-communication-from- Ernst-Golstein, of Hamburg, in the German
Empire.
This Invention relates to burners of lamps constructed for the combustion of
naphta, hydrocarbons, and other volatile oils. The improved burner is constructed
as follows: A cylindrical tube of length sufficient to reach down to the bottom, or
nearly so, of the vessel containing the volatile liquid is employed. This tube
contains a wick of cotton with an inuer cylindrical core of wire gauze. Over the
upper part of this wick tube, and outside, or partly outside, the vessel is placed a
second tube which exactly fits the inner tube. The outer tube is on the top
furnished with a cover containing a number of small borings or perforations for the
volatile evaporations or gases from the oil to pass through from the oil vessel of the
lamp to the open air, that is, to the point of combustion. The gases when ignited
give a number of flames more or less near to each other and in volume corresponding
to the number and size of the borings. Within the outer tube and near to the
mouth of the inner tube a plug is fastened furnished with four or more borings to
allow the gases to pass through. By means of an eccentric or cam disc fastened to
the end of a piece of wire placed in a bearing of the vessel the outer, tube can be
lifted or lowered on the inner tube, in consequence whereof the inner plug will open
or close the mouth of the wick-tube more or less, in consequence of which more or
less gas will be allowed to pass from the vessel to the flames of the burner, and thus
is afforded a means to regulate the volume of the flames.
In the annexed Sheet of Drawings Figs. 1 and 2 show this burner respectively
in section and in side view; a is the wick-tube containing the wick with inner
wire core n P is the vessel containing the volatile oil with a projecting tube g,
through which the wick-tube is passed into the vessel P; b is the outer tube which
exactly fits over the inner tube a; d is the cover containing the borings for the
gases to pass through; c is the plug attached to the outer tube b and containing the
vertical borings; the bottom end of this plug fits the opening of wick-tube a and
shuts the latter completely when tube 6 has been sufficiently lowered on tube a.
The up and down motion of b on a is executed by disc f which is fastened
eccentrically to the end of a wire o placed in a bearing hand which can be turned
by hand through the button disc 8. On the bottom of a slot of f rests a pin e
fastened to tube b, and when f is turned, this pin e, and at same time tube b, is
either lowered or lifted, and consequently plug c more or less opens or shuts the
mouth of wick-tube a and allows more or less gas to pass from the vessel to the
flames of the burner; R is a brass disc to protect vessel P from the radiating heat
of the flames.
Fig. 3 shows a modification of this burner, in which x is a brass piece with a
spherical projection in the middle, and which is fastened to cover d and furnished
with four or more vertical borings; z is a similar brass piece but with a spherical
mould to fit the projection of x, and which is fastened to the wick-tube a and like-
wise furnished with four or more vertical borings; t is a wire having at its bottom
end a nut and screw to connect d and a together. By means of a handle H
fastened to d the cover d can more or less be turned on tube a, and as x is fastened
to cover d and to tube a the borings of x will be shifted in position to the borings
of when dis turned. This gives a means to shut off or open the passage of the
gases and to regulate the size of the flames or to extinguish the same.
Having now described the nature and particulars of the said Invention in such
wise that the same may be readily carried into practical effect, I claim,-
First. The up and down sliding motion of outer tube b on wick-tube a for lifting

page_text: or lowering a plug c fastened to b to open or shut the mouth of the wick tube a, as
and for the purpose herein set forth and as shown in Figs. 1 and 2 of the accom-
panying Sheet of Drawings, and
Second. The modification shown in Fig. 3 of the annexed Sheet of Drawings, in
which the passage of the gases from the wick-tube to the burner cover is regulated
by turning a metal piece on a corresponding piece z, in the manner as herein fully
described.
In witness whereof, I, the said Friedrich Hermann Felix Engel, have here-
unto set my hand and seal, this Twenty eighth day of July, in the year of
our Lord One thousand eight hundred and seventy nine.