IMPROVEMENTS IN PETROLEUM STOVES
Year: 1875

page_text: LETTERS PATENT to Charles Ambrose McEvoy, of No. 4, Piccadilly,
in the County of Middlesex, for the Invention of "IMPROVEMENTS
IN PETROLEUM STOVES."
PROVISIONAL SPECIFICATION left by the said Charles Ambrose
McEvoy at the Office of the Commissioners of Patents, with his
Petition, on the 22nd November 1875.
I, CHARLES AMBROSE MCEVOY, of No. 4, Piccadilly, in the County
of Middlesex, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN PETROLEUM STOVES," to be as follows:-
:-
.
This Invention has for its object to improve the construction of
petroleum stoves. In petroleum stoves as now sometimes constructed the
burner is composed of three or more parallel flat wick tubes rising up
from the top of a reservoir containing the supply of petroleum. To each

page_text: wick tube there is a spindle and small toothed pinions for raising or
lowering the wick, and above these spindles the wick tubes are surrounded
by other tubes closed at the bottom and kept filled with water so as to
keep the burner tubes cool. To keep these tubes filled with water they
are each connected by passages with a small water supply vessel.
A small quantity of water is also in addition in some cases poured upon
the top of the petroleum reservoir, the reservoir having a rim projecting
up from it to retain the water, but the amount of water which can so be
kept upon the top of the reservoir is limited, as the water must not
come up to the level of the spindles.
My improvements have mainly for their object to provide a more
efficient means of keeping the wick tubes and petroleum reservoir
sufficiently cool.
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According to my Invention I place above the spindles a horizontal
plate of sheet metal through which all the wick tubes pass; this plate
around-its outer edge has a rim rising up from it which reaches to a
height slightly below the top-of-the-wick tubes. The bath or vessel so
formed I keep filled with water, the wick tubes I also surround on their
exterior with wicks which descend to the bottom of the water bath; so
that they may apply water to the exterior of the wick tubes even if but
little water remains in the bath. Between the horizontal plate and the
top of the reservoir there is an air space which also assists in keeping
the reservoir cool.
1.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Ambrose M°Evoy in the Great Seal
Patent Office on the 22nd May 1876.
G
11.1013
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
AMBROSE M EVox, of No. 4, Piccadilly, in the County of Middlesex;
send greeting.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 3
Letters Patent, bearing date the Twenty-second day of November, in
the year of our Lord One thousand eight hundred and seventy-five,

page_text: .:
It:
in the thirty-ninth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Charles Ambrose M°Eyoy,
Her special license that I, the said Charles Ambrose McEvoy, my
executors, administrators and assigns, or such others as I, the said
Charles Ambrose M°Evoy, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should
and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN PETROLEUM STOVES," upon the
condition (amongst others) that I, the said Charles Ambrose McEvoy,
my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.
ילות
NOW KNOW YE, that I, the said Charles Ambrose M'Evoy, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in
and by the following statement thereof, that is to say :--
..
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:
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1°
".
This Invention has for its object to improve the construction of
petroleum stoves. In petroleum stoves as now sometimes constructed
the burner is composed of three or more parallel flat wick tubes rising
up from the top of a reservoir containing the supply of petroleum. To
each wick tube there is a spindle and small toothed pinions for raising
or lowering the wick, and above these spindles the wick tubes are
surrounded by other tubes closed at the bottom and kept filled with
water so as to keep the burner tubes cool. To keep these tubes filled with
water they are each connected by passages with a small water supply.
vessel. A small quantity of water is also in addition in some casés
poured upon the top of the petroleum reservoir, the reservoir having a
rim projecting up from it to retain the water, but the amount of water
which can so be kept upon the top of the reservoir is limited, as the
water must not come up to the level of the spindles.
My improvements have mainly for their object to provide a more
Y:

page_text: efficient means of keeping the wick tubes and petroleum reservoir
sufficiently cool.
According to my Invention I place above the spindles a horizontal
plate of sheet metal through which all the wick tubes pass; this plate
around its outer edge has a rim rising up from it which reaches to a
height slightly below the top of the wick tubes. The bath or vessel so
formed I keep filled with water, the wick tubes I also surround on their
exterior with wicks which descend to the bottom of the water bath, so
that they may apply water to the exterior of the wick tubes even if but
little water remains in the bath. Between the horizontal plate and the
top of the reservoir there is an air space which also assists in keeping
the reservoir cool.
In order that my said Invention may be most fully understood, and
Figure 1 is a plan, and Figure 2, a section of a petroleum stove
constructed according to my Invention.
a is the petroleum reservoir; there is an aperture at a¹ by which it is
filled; this aperture is provided with a screw plug; b, b, b, are the wick
tubes;
and c, c, c, are the spindles carrying toothed pinions by which
the wicks are raised; d is a plate placed over these pinions and so as to
leave an air space e between it and the petroleum reservoir. The wick
tubes pass through the plate d which is soldered or fixed to them in a
water-tight manner; f is a rim fixed around the edge of the plate d so
as to form with it a bath or vessel into which water is placed before the
stove is used. This water serves to keep the wick tubes cool, and to do
this more effectually a covering of any suitable porous fabric may be
applied around the exterior of each wick tube, and these coverings
dipping into the water in the bath or vessel will carry the water up by
capillary action nearly to the tops of the wick tubes; g is a small
discharge pipe for drawing off the water from the bath or vessel when
desired; it is closed by means of a screw plug; h are supports for the.
iron chimney i which is used to obtain a rapid draught of air; this
chimney is shown by dotted lines.

page_text: What I claim is the construction of petroleum stoves, substantially as
described.
In witness whereof, I, the said Charles Ambrose M'Evoy, have
hereunto set my hand and seal, this Twenty-second day of May,
in the year of our Lord One thousand eight hundred and seventy-
six.