IMPROVEMENTS IN LAMPS AND LAMP STOVES
Year: 1876

page_text: LETTERS PATENT to Jacob Hirschhorn, of Berlin, in the Kingdom of Prussia and
Empire of Germany, for the Invention of "IMPROVEMENTS IN LAMPS AND LAMP
STOVES."
Sealed the 5th January 1877, and dated the 10th November 1876.
PROVISIONAL SPECIFICATION left by the said Jacob Hirschhorn at the Office
of the Commissioners of Patents on the 10th November 1876.
JACOB HIRSCHHORN, of Berlin, in the Kingdom of Prussia and Empire of Germany.
"IMPROVEMENTS IN LAMPS AND LAMP STOVES."
The Invention has for its object improvements in lamps and lamp stoves, and
relates, firstly, to an improved method of placing the reservoir and burners in
position under the cone plate in lamp stoves, in which the cone plate forms the
bottom of the lamp body. For this purpose fix to the bottom of the cone plate
two descending plates in which slots are formed to receive studs or projections fixed
to the sides of the reservoir, or to the sides of a tray carrying the reservoir. These
slots have parts thereof vertical or somewhat inclined from the vertical, and the
upper parts are turned into a horizontal or nearly horizontal position with the ends
thereof somewhat depressed, so that when the reservoir is in position it shall be
securely held therein.
The Invention relates, secondly, to improvements in the construction of "argand"
or circular burners for lamps and lamp stoves to enable two flat wicks to be
employed to form a circular or "argand" wick. For this purpose I form the
bottom of the burner with two guides or tubes to receive the flat wicks, which
guides or tubes may be straight and parallel to each other, or they may be slightly
curved. The upper end of the burner has the form of two concentric rings having
the wicks between them as usual. The inner portions of the burner gradually
change from the circular form at the upper end to parallel right lines at the lower
end, where they are connected to a plate enclosing the wick pinions and carrying a
stud on which the button or deflector is fixed. The outer portion of the burner is
preferably conical from end to end, but the outer sides of the wick guides or tubes
are extended upwards in a flaring direction from their lower ends to within a short
distance from the top of the burner to guide the wicks. The wicks are raised and

page_text: lowered by pinion wheels gearing together, and working in a similar manner to
those used for raising and lowering an ordinary circular wick.
The Invention relates, thirdly, to means for readily fixing the wick tube in the
reservoir and removing the same therefrom, and relates more especially to flat wick
burners, but it is also applicable to burners of the character described with respect
to the second part of my Invention. For this purpose I fix to the wick tube or
tubes at opposite ends thereof two catches, one on one side, the other on the other
side, and I form a comparatively narrow longitudinal opening in the top of the
reservoir to permit the wick tube and catches to be passed therein, after which by
turning the wick tube slightly on its axis the two catches take under the top plate
of the reservoir. The wick tube or tubes have connected thereto a circular chamber
enclosing the wick pinions, and the edge of such circular chamber is formed slightly
inclined to fit a correspondingly inclined ring on the top plate of the reservoir, by
which means, aided by the action of the catches whose faces are inclined, the opening
into the reservoir is efficiently sealed.
SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said Jacob Hirschhorn in the
Great Seal Patent Office on the 9th June 1877.
JACOB HIRSCHHORN, of Berlin, in the Kingdom of Prussia and Empire of
Germany. "IMPROVEMENTS IN LAMPS AND LAMP STOVES."
The Invention has for its object improvements in lamps and lamp stoves, and
relates, firstly, to an improved method of placing the reservoir and burners in
position under the cone plate in lamp stoves in which the cone plate forms the
bottom of the lamp body. For this purpose I fix to the bottom of the cone plate
two descending plates in which slots are formed to receive studs or projections fixed
to the sides of the reservoir or to the sides of a tray carrying the reservoir. These
slots have parts thereof vertical or somewhat inclined from the vertical, and the
upper parts are turned into a horizontal or nearly horizontal position with the ends
thereof somewhat depressed, so that when the reservoir is in position it shall be
securely held therein.
The Invention relates, secondly, to means for readily fixing the wick tube in the
reservoir and removing the same therefrom, and relates more especially to flat wick
burners, but is also applicable to other burners in which two flat wicks are placed
near to each other. For this purpose I fix to the wick tube or tubes at opposite
ends thereof two catches, one on one side, the other on the other side, and I form a
comparatively narrow longitudinal opening in the top of the reservoir to permit the
wick tube and catches to be passed therein, after which by turning the wick tube
slightly on its axis the two catches take under the top plate of the reservoir. The
wick tube or tubes have connected thereto a circular chamber enclosing the wick
pinions, and the edge of such circular chamber is formed slightly inclined to fit a
correspondingly inclined ring on the top plate of the reservoir, by which means
aided by the action of the catches whose faces are inclined, the opening into the
reservoir is efficiently sealed.
And in order that my said Invention may be more clearly understood and readily
carried into effect, I will proceed, aided by the accompanying Drawings, more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side view, and Figure 2 is a vertical section of the lower part of the
body of a lamp stove with the reservoir and burners showing the first part of my
Tanti

page_text: a perforated plate fixed a short distance below the bottom of the cone plate. In
these plates c, c, are formed slots c¹, c², c³, the parts c¹ of which are vertical or some-
what inclined from the vertical, whilst the upper parts cå are turned into a horizontal
or nearly horizontal position with the ends somewhat depressed. The reservoir d
is carried by a tray e, to the sides of which are fixed studs e¹ which are passed
into the slots c¹, c², c³, and serve to support the reservoir either raised in position
for use or lowered into position for trimming. Thus by raising the tray e and
reservoir d the burners fare guided into position in correct relation with the cone
plate, and can be there held by the studs e resting in the parts c² of the slots: If
desired the studs e¹ may be fixed to the sides of the reservoir, and the tray e
dispensed with.
Figure 3 is a cross section, and Figure 4 is a plan of a reservoir and flat wick
burner with the second part of my Invention applied thereto, and Figure 5is a
side elevation.
Figure 6 is an elevation seen at right angles to Figure 5, and Figure 7 is an
under side view of the burner separately. is the reservoir; h is a circular inclined
ring fixed to the top thereof; and g¹ is a comparatively narrow longitudinal aperture
in the top of the reservoir through which the wick tube i is passed. I fix to the
wick tube or tubes i two catches 2¹, one on one side, the other on the other side, and
the wick tube or tubes i have connected thereto a circular chamber enclosing the
wick pinions, and the edge of such circular chamber 22 is formed slightly inclined to
fit the inclined ring h. Thus by passing the wick tube or tubes i and catches i¹
into the opening g, and by turning the wick tube or tubes slightly on their axis
the two catches it will take a bearing under the top plate of the reservoir g, and
hold the burner securely in position whilst the opening.into the reservoir g is
efficiently sealed by the combined action of the circular chamber i² and inclined
ring h.
I would here remark that I have discovered that the mode of constructing circular
burners described in my Provisional Specification does not possess sufficient novelty
to render it advisable to lay claim thereto, and for this reason I desire to disclaim,
and I do hereby disclaim such part.
Having thus described the nature of my said Invention, and the mode in which
I carry the same into effect, I would have it understood that what I claim is,
First. The mode of guiding the burners into position under the cone plate and
holding them thereon, substantially as herein shown and described with respect to
Figures 1 and 2.
And, Secondly. I claim the mode of fixing the wick tube or tubes in the reservoir,
substantially as herein shown and described with respect to Figures, 3, 4, 5, 6,
and 7.
In witness whereof, I, the said Jacob Hirschhorn, have hereunto set my hand
and seal, this Seventh day of June, in the year of our Lord One thousand
night hundred and are
A
JACOB HIRSCHHORN. (L.S.)