IMPROVEMENTS IN OIL OR SPIRIT LAMPS
Year: 1877

page_text: LETTERS PATENT to Otto Wollenberg, of Berlin, in the Empire of Germany,
for the Invention of "IMPROVEMENTS IN OIL OR SPIRIT LAMPS."
Sealed the 29th January 1878, and dated the 30th July 1877.
PROVISIONAL SPECIFICATION left by the said Otto Wollenberg at the Office
of the Commissioners of Patents on the 30th July 1877.
OTTO WOLLENBERG, of Berlin, in the Empire of Germany.
OIL OR SPIRIT LAMPS."
"IMPROVEMENTS IN
This Invention relates to improvements in the burners and in the mechanism for
operating the wicks of petroleum or other oil or spirit lamps, and consists in forming
the burner pieceable or within an inner tube of parallel diameter for its entire length,
and with an outer tube which is tapered or enlarged towards its lower end so as to
fit exactly on the top edge of the wheel casement where it is firmly set and retained
in its place by an inner edge or other device forming part of the glass supporter or
casing which is screwed on the top edge of the wheel casement between these two
tubes the wick is caused to move and comes out at the top in a perfectly circular
closing form; on introducing the wick the burner tube is held with one hand whilst
the wick is inserted from below with the other hand.
The air is admitted laterally to the inner tube of this burner by an opening
joining the two tubes and communicating with the external atmosphere. By these
arrangements the burner is easily taken apart and detached from the wheel casement,
and can be as easily replaced as desired.
The wheel casement contains three horizontal axles forming a triangle, and
which are fixed in three bearing brackets or stands, so that the end of two axles meet
in one stand; one of the axles passes through the surrounding wall of the casement
and finishes in a handle from which the mechanism is worked.
.
The three axles act upon one another by two toothed bevil wheels on each axle.
In the middle, where the axles touch the inner wall of the casement, three toothed spur
wheels are fixed, openings being made at these points through the inner wall so as
to allow the wheels to grip firmly the wick which moves between the inside of the
wheel casement and the outside of the inner tube of the burner.

page_text: The glass reservoirs passed through by ventilating tubes are most advantageously
used for these burners, the reservoirs and tubes being made of one piece; by this
means the interior tube of the burner forms an entirely hollow uninterrupted open
cylinder, being a continuation of the tube in the reservoir or vase. At the same time
a specially constructed reservoir is not positively necessary for the use of these
burners; but as an opening for the lateral admission of air exists in almost every
burner at present used, the introduction of a small tube up to the height of this
opening makes this burner highly adaptable to lamps with reservoirs of every
description, especially as neither the glass cylinder nor the wick differ from those
hitherto used.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Otto Wollenberg in the Great Seal Patent Office on the 29th January
1878.
OTTO WOLLENBERG, of Berlin, in the Empire of Germany. "IMPROVEMENTS IN
OIL OR SPIRIT LAMPS."
This Invention relates to improvements in the burners and in the mechanism for
operating the wicks of petroleum or other oil or spirit lamps, and is illustrated by
the accompanying Sheet of Drawings, where,―
Fig. 1 is a section, and Fig. 2 an elevation of the improved burner and is
appendages.
Fig. 3, an elevation, and Fig. 4, a sectional plan of the wheel casement forming
part of the same.
Fig. 5, a detached sectional view of the burner tube with the wick in position,
and Figs. 6 and 7, detached sectional views of the burner tube.
The inner tube of the burner tube is of parallel diameter for its entire length
and fits exactly at its lower end on the glass tube of the reservoir or vase.
q
The
outer tube is tapered or enlarged towards its lower end, where it is flanged or
turned over, and fits exactly on the top edge u of the wheel casement x, and is
firmly set and retained in its place thereon by an inner edge y (or other device)
forming part of the glass supporter or casing w, which is screwed on the top thread v
of the wheel casement x, as shewn.
A lateral opening t, the surrounding wall of which joins the inner and outer tubes
7 and q, admits air to the burner tube, and a rib or partition 8 extending from the
lowest point of the opening t to the bottom edge of the inner tube r acts as a guide
for the introduction of the wick, which is effected simply and easily by holding the
burner tube with one hand and introducing the wick from below; it is then passed up
between the two tubes r and q, and, owing to the tapered form of the latter, comes
out at the top in a perfectly closing circular form.
The wheel casement x contains three horizontal axles a, b, c, (Fig. 4) arranged in
the form of a triangle, and mounted in bearings or brackets projecting from the inner
wall or tube of the wheel casement x. The axle a is extended through the outer
surrounding wall of the wheel casement x and terminates in a handle k by which
the mechanism is worked.

page_text: The axles a, b, c, acts upon each other by the toothed bevil wheels d, e, f, g, h, i,
fixed thereon and gearing respectively into each other. In the middle where the
axles a, b, c, touch the inner wall of the casement x three toothed spur wheels z are
fixed, openings being made at these points through the said inner wall so as to allow
the wheels to grip firmly the wick which moves between the inner wall of the case-
ment and the wall of the inner tuber of the burner. By the above arrangement
the burner is easily taken apart and detached from the wheel casement, and as easily
replaced.
*Glass reservoirs passed through by ventilating tubes are most advantageously used
for these burners, the reservoirs and tubes being made in one piece; by this arrange-
ment the interior of the burner forms an entirely uninterrupted open cylinder, being
a continuation of the reservoir or vase. At the same time a specially constructed
reservoir is not positively necessary for the use of these burners, as a lateral opening
for the admission of air exists in almost every burner at present used; the
introduction of a small tube up to the height of this opening makes the improved
burner highly adaptable for lamps with reservoirs of every description, especially as
Deither the glass cylinder nor the wick differ from those hitherto used.
I claim as my Invention,-
1. The construction of the burner tube, wheel casement, and glass supporter, which
allows of their being easily taken apart and replaced, substantially as herein-before
described and illustrated.
2. The construction of the wick-driving mechanism, substantially as herein-before
described and illustrated.
3. The application and use of a small tube in combination with the lateral opening
in the burner tube for adapting it to lamps with reservoirs without passing through
tubes, substantially as described.
In witness whereof, I, the said Otto Wollenberg, have hereunto set my hand
and seal, this Tenth day of January, in the year of our Lord One
thousand eight hundred and seventy-eight.
OTTO WOLLENBERG. (L.S.)