IMPROVEMENTS IN SPIRIT COOKING STOVES OR LAMPS
Year: 1883

page_text: LETTERS PATENT to David Poznainski, of Mount Pleasant, Clerkenwell, in the
county of Middlesex, Tin plate worker for an Invention of "IMPROVEMENTS
IN SPIRIT COOKING STOVES OR LAMPS
"
PROVISIONAL SPECIFICATION left by the said David Poznainski at the
Office of the Commissioners of Patents on the 13th June 1883.
DAVID POZNAINSKI of Mount Pleasant, Clerkenwell, in the county of Middlesex,
Tin Plate Worker "IMPROVEMENTS IN SPIRIT COOKING STOVES OR LAMPS
"
This invention relates to improvements in or applicable to that class of spirit
cooking stoves the heating part or lamp of which consists of a receiver with a wire
gauze top.
In such stoves as hitherto constructed no means have been provided for regulating
the flame and consequently the amount of heat therefrom is practically always the
same.
Now by my improvements these defects are remedied and means provided for
regulating the flame of the lamp or stove.
In carrying out my improvements I apply over the wire gauze through which
the flame passes, a slide or slides, so arranged that it or they can by suitable
means be moved over the said wire gauze so as to increase or diminish as required
the amount of surface through which the flame can pass and thereby regulate the
flame.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said David Poznainski in the Great Seal Patent Office on the
11th December 1883.
DAVID POZNAINSKI of Mount Pleasant, Clerkenwell in the county of Middlesex,
Tin Plate Worker "IMPROVEMENTS IN SPIRIT COOKING STOVES OR LAMPS
"
This invention relates to improvements in or applicable to that class of spirit
cooking stoves the heating part or lamp of which consists of a receiver with a wire
gauze top.

page_text: In such stoves as hitherto constructed no simple means have been provided for
regulating the flame and consequently the amount of heat therefrom is practically
always the same.
Now by my improvements these defects are remedied and simple and efficient
means are provided for regulating the flame of the lamp or stove.
In carrying out my improvements I apply over the wire gauze through which
the flame passes, a slide or slides, so arranged that it or they can by suitable
means be moved over the said wire gauze so as to increase or diminish as required
the amount of surface through which the flame can pass and thereby regulate the
flame.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawing in which figure 1, is an
elevation; figure 2, a vertical section and figures 3, and 4, plans of a spirit cooking
stove or lamp provided with my improvements. Similar letters in all the figures
represent similar parts.
a, a, is the body of the stove or lamp; b, b, b, the legs or stand of the same,
and c, the wire gauze top of the stove or lamp all of the ordinary construction.
Over the wire gauze c, I fix the plates d, and e, with a small space between
them; the centre of these plates d, and e, is open as shewn in figures 2, and 3, so
as to allow the flame of the stove or lamp to pass through the wire gauze c. In
the space between the plates d, and e, I place the crescent shaped slides f, f, each
provided with a rod g, g; the outer end of each rod passes outside through the
sides of the lamp body as shewn and is provided with a knob or button h, to allow
of operating the said slides f, f.
By this arrangement it will be seen that when the slides f, f, are within the
space between the plates d, and e, as shewn in figure 3, the whole of the wire
gauze c, beneath the central openings of the plates d, and e, is uncovered and the
flame from the stove or lamp can pass through this opening; if it be desired to
diminish the extent or size of the flame it will be merely necessary to move
inwards the slides f, f, by means of the rods g, g, as shewn in figures 2, and 4, so
as to partly cover the wire gauze and thereby diminish the extent of surface of the
wire gauze c, through which the flame can pass so that the flame can thus be
regulated according to the extent to which the slides are moved.
In the drawing I have shewn the stove or lamp provided with two slides, but it
will be obvious that only one slide may be employed.
Having thus described my invention and the manner of carrying the same into
effect I wish it to be understood that what I claim and intend to be protected by
the herein in part recited Letters Patent is :-
The improved spirit cooking stove or lamp herein described and represented in
the accompanying drawing.
In witness whereof I the said David Poznainski have hereto set my hand
and seal this tenth day of December in the year of our Lord one thousand eight
hundred and eighty three
D. POZNAINSKI
(L.S.)