An Incandescence Oil Lamp.
Year: 1895

page_text: Date of Application, 28th Feb., 1895
Complete Specification Left, 30th Dec., 1895-Accepted, 28th May, 1896
An Incandescence Oil Lamp.
I, JULIUS MOELLER, of No. 14 Palmer Street, Westminster, in the County of
London, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to the construction of an oil lamp in such a manner that
the flame is of the character of a Bunsen gas flame, so that it effects the heating,
to incandescence of a mantle of the kind employed for incandescence gas lighting,.
thus producing a brilliant light.
'
Through the oil reservoir I pass a central tube open at the bottom and extending
up some distance above the reservoir, so as to form the internal tube on which the
wick is held between it and an external concentric tubo which extends some distance
down into the reservoir. The wick of the ordinary woven kind terminates a little
below the top of the concentric tubes, which are so shaped at the top that the,
annular space between them is widened.
In this widened space I pack on the top of the wick a woolly material obtained
by scraping blotting paper, and on this I place a ring of asbestos fibre, which
constitutes a permanent wick top so that the body of the wick requires no
raising or lowering. Outside the upper part of the wick tube an air cone is fixed.
on a tubular gallery which rests on the reservoir and has all round it apertures:
for admission of air that can be more or less closed by a circularly sliding valve.
Centrally within the wick tube there is a smaller tube which can be slid up and.
down vertically, through guides by means of a rack gearing with a pinion on a.
transverse spindle mounted below the reservoir and provided with a milled button
by which it can be turned. This tube terminates at the top in a hollow button the
edge of which is perforated with a number of small holes. In a hole on the top of
this button is inserted a rod of refractory material which carries the incandescence.
mantle as in the ordinary incandescence gas burners. The air cone, burner and
mantle are all enclosed within a cylindrical glass chimney. The lamp is operated
in the following manner. First, by means of the rack and pinion the small central
tube, with the mantle carried upon it, is raised, so that the mantle is considerably:
above the top of the wick to which a light is applied. In a short time the asbestos
wick is so heated that the oil passing through it is vaporised, and then the mantle,
is lowered until its lower part encloses the root of the flame. The air supplied
externally from the air cone, and that supplied internally from the wick tube, and
also from the perforations of the button which acts as a deflector, being directed
against the root of the flame, causes it to burn like the flame of a Bunsen burner,
heating, the mantle to brilliant incandescence.
Dated this 28th day of. February 1895.
ABEL & IMRAY,
Agents for the Applicant.
./

page_text: An Incandescence Oil Lamp.
I, JULIUS MOELLER, of No. 14, Palmer Street, Westminster, in the County of
London, Engineer, 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 :—
My invention relates to the construction of an oil lamp in such a manner that.
the flame is of the character of a Bunsen gas flame, so that it effects the heating
to incandescence of a mantle of the kind employed for incandescence gas lighting
thus producing a brilliant light.
The accompanying drawing is a vertical section of a lamp according to my.
invention.
Through the oil reservoir O I pass a central tube A open at the bottom and
extending up some distance above the reservoir O, so as to form the internal tube
on which the wick W is held between it and an external concentric tube B which.
extends some distance down into the reservoir. The wick W of the ordinary woven
kind terminates a little below the top of the concentric tubes A and B which are
so shaped at the top that the annular space between them is widened.
In this widened space I pack on the top of the wick a woolly material C obtained
by scraping blotting paper, and on this I place a ring D of asbestos fibre, which
constitutes a permanent wick top so that the body of the wick requires no raising
or lowering. Outside the upper part of the wick tube an air cone E is fixed on a
tubular gallery G which rests on the reservoir and has all round it apertures for
admission of air that can be more or less closed by a circularly sliding valve F.,
Centrally within the wick 'tube there is a smaller tube H which can be slid up and
down vertically through guides by means of a rack gearing with a pinion P on a
transverse spindle mounted below the reservoir and provided with a milled button Q
by which it can be turned. This tube terminates at the top in a hollow button K
the edge of which is perforated with a number of small holes. In a hole on the
top of this button is inserted a rod L of refractory material which carries the
incandescence mantle M as in the ordinary incandescence gas burners. The air
cone, burner and mantle are all enclosed within a cylindrical glass chinney N.
The lamp is operated in the following manner. First, by means of the rack and
pinion P the small central tube H, with the mantle M carried upon it, is raised
so that the mantle is considerably above the top of the wick to which a light is
applied. In a short time the asbestos wick D is so heated that the oil passing:
through it is vaporised, and then the tube H is lowered until the lower part of the
mantle M encloses the root of the flame. The air supplied externally from the air
cone, and that supplied internally from the wick tube, and also from the perforations
of the button K which acts as a deflector being directed against the root of the
flame, causes it to burn like the flame of a Bunsen burner, heating the mantle M to
brilliant incandescence.
Having now particularly. described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
An incandescence oil lamp constructed and operating substantially as described
with reference to the accompanying drawing.
Dated this 23rd dew of Desemba 100K
ABEL & IMRAY,
Agents for the Applicant.