Year: 1899

page_text: Date of Application, 11th Apr., 1899 -Accepted, 27th May, 1899
I, WILLIAM HUMPHREY WHEATLEY, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40, Chancery Lane, in the County of London,
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:-
This invention relates to an improved burning appliance for an ordinary cook
stove or range, the object being to provide a cover, which is adapted to serve as
one of the covers for a stove hole, or to be substituted for one of the stove hole
covers, with the burner having a passage communicating therewith for the in-
troduction of a combustible gas, or of admixed gas and air for combustion directly
at the cover, and all in a simple and inexpensive manner, and also in a manner
so as not to obstruct or interfere with the stove for its ordinary coal and wood
burning capabilities, or to be itself interfered with by the provisions in the stove
whereby it-is adaptable for the ordinary use.
The invention consists in the combination with a stove top having an opening
therein as usual, of a plate or cover to fit in said opening and constructed with a
burning having a passage for conveying gas thereto.
The invention furthermore consists in a combined stove cover and burner
constructed with a chamber into which gas, or gas and air are introduced, pro-
vided with openings outwardly leading therefrom for the egress of the gas to be
burned at the cover top and provided with a passage for the introduction of gas,
or of gas and air into the said chamber.
The invention furthermore consists in the construction and formation of parts
to constitute an approved form of the stove-cover-burner, all substantially as
will hereinafter fully appear and be set forth in the claim.
Reference is to be had to the accompanying drawings in which
Figure 1 is a central section and perspective view of a top portion of a cook
stove or range and the cover burner as provided for covering the usual stove hole
thereof.
Figure 2 is a perspective view as seen from above of the burner-cover, parts
thereof being shown as separated, for clearer illustration of the structural com-
position thereof.
Figure 3 is a perspective view of the burner-cover as seen- from below.

page_text: In the drawings, similar characters of reference indicate the same parts or
features in all the views.
A represents a cover or lid to fit in one of the usual holes in the top of a stove,
said cover being constructed with a cup-shaped depression, 10, below its top,
having through its side wall at or near its upper edge, a series of radial, out-
wardly opening, gas openings, 11, 11, with passage leading radially to the lower
portion of the depression chamber from at or beyond the edge of the cover, said
cover proper, the circular wall surrounding the depression 10, and that sur-
rounding or within which is the said passage b being all integrally formed in a
single casting, and the casting if furthermore constructed with the comparatively
deep annular groove or trough, d, outside the circular wall of the chamber de-
pression 10, the outer wall of which trough is upwardly and outwardly flaring
as shown at 12.
The chamber depression 10 is overlaid by the circular plate f, which constitutes
the top of the burner chamber, the screw holding it in place.
The integrally cast wall of the passage b is comprised in a portion 13 of the
casting above and near the margin of the cover A, the inwardly leading passage
therethrough being thence continued obliquely downward to a point below the
underside of the cover, thence continued more or less nearly horizontally and
connecting with the depression chamber 10 upwardly through the bottom thereof.
The protuberance 13 of the casting at the cover margin has the opening 15
therein screw-threaded receiving the pipe section, h, the outer end of which has
the contracted extension 2 provided with the closely fitted metallic plug i having
the axial needle hole therethrough for the admission from the gas supply of a
suitable restricted quantity of the gas into the burner ingress passage. This
pipe forms a handle for the cover. In advance of the centrally perforated
plug the pipe section has a double series of radially entering air ingress
holes m m.
To the contracted outer end of the said pipe section h connection is made with
a flexible or other gas supply pipe. which may convey the gas to the burner
cover from a gas fixture or any suitable gas supply-it being here observed that my
invention is not necessarily limited to its capability for the burning, for heating
or culinary or any suitable purposes, of illuminating coal gas, for it is available
in its employment for useful results of vaporized gasoline or any hydrocarbon.
The gas entering in conjunction with atmospheric air into the burner
chamber 10 thence passes outwardly through the radial openings surrounding the
burner top and burns in an annular body in and above the surrounding trough
or groove & formed in the cover, the upwardly flaring outer wall thereof upwardly
deflecting the flame whereby it may impinge against a kettle, pan, or whatever
may be supported thereover to be heated; and in order that the free combustion
of the gaseous fuel may not be obstructed the article or receptacle to be heated
is supported above the top surface of the cover upon the spider frame indicated
ata which may be of cast iron separately made and placed on the cover, or it
may be cast as an integral portion of the burner cover.
The improved burning appliance is economical, and, as demonstration has
proved, satisfactory and efficient in expeditiously acquiring an ample heat.
The cover burner is so constructed that there can be no communication from
the combustion chamber of the stove through the burner chamber to the top of
the cover or outside of the stove, so that even when a coal or wood fire is used in
the stove in place of the gas flame for heating or cooking, or in addition thereto,
no smoke can pass through the cover into the room, and no dampening draft can
pass from above through the cover onto the fire in the fire box of the stove or
range.
In lieu of having the passage for conveying the gas into the burner chamber
constructed integrally in the casting as above mentioned, it may be made in the
form of a separate pipe suitably connected to communicate with the interior of
the bottom closed burner chamber in the cover.

page_text: I am aware that burners for vaporizing liquid hydrocarbon fuel have been
proposed as constructed in combination with circular plates or rings to be fitted
in the pot holes of stoves, but so far as known to me, these have comprised open-
ings through the burner and supporting ring or plate whereby communication
is afforded from the combustion chamber of the stove up through the cover to
the external air in the kitchen, so that these burners are unfitted to serve as
covers for the stove at times when a coal or wood fire is used therein.
It is my intention to claim cover and burner constructions whereby the stove
hole is completely closed when the cover is in place therein.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
.
1-The combination with a stove top having a pot opening therein as usual,
of a stove cover, fitted in and closing said opening, and completely preventing
communication from the combustion chamber of the stove through the said
covered opening, constructed with a burner chamber having openings leading
to the top of said cover, and a conduit for conveying a combustible gas from out-
side the stove into the burner chamber, substantially as described.
2-A combined stove cover and burner constructed with an enclosed chamber
completely walled and separated from the under surface of the cover, and into
which gas may be introduced, and provided with openings leading outwardly
therefrom near the upper part of said chamber, and having a gas supplying
passage leading into said chamber, substantially as and for the purpose set forth.
3 A combined stove cover and burner constructed with a central depression
chamber, completely separated from the under side of the cover having a top wall,
and outwardly opening passages, and with an annular upwardly opening depres-
sion surrounding the depression chamber, and having a passage for supplying
gas leading into said chamber, substantially as described.
4-A combined stove cover and burner constructed with a central depression
chamber 10, entirely closed at its bottom, having a top wall, and a series of out-
wardly opening passages; and with an annular trough or groove in the top of
the cover surrounding the depression chamber, and into which said passages
lead, the outer wall of which is outwardly and upwardly flaring; and a passage
for conveying gas into said chamber, substantially as described.
5-A combined stove cover and burner constructed with a chamber within
its margin, which is entirely closed at its bottom, provided with a series of
burner openings leading outwardly therefrom and with a protuberance at a
marginal portion of the cover having an opening leading thereinto which is
continued in a passage leading inwardly below the cover to communication
into the bottom of said chamber, and a gas supplying pipe connection connecting
with said marginal opening, substantially as described.
6A combined stove cover and burner constructed with a chamber which is
entirely closed at its bottom with burner openings leading outwardly therefrom,
to the top of the cover, and with a gas ingress passage leading from the margin
of said cover to the chamber, which has the contracted passage and an air open-
ing in advance thereof, substantially as and for the purposes set forth.
7-An imperforate stove hole cover having a depression in its top, and in
which the burner chamber is located, the top wall or cover of which chamber is
placed upon the same plane as the top of the stove hole cover, said burner having a
series of openings leading from said chamber to the top of the cover, and a conduit
connected with said burner chamber for conveying combustible gas thereinto,
and which conduit forms a part of the cover, substantially as set forth.
8 An imperforate stove hole cover provided with a depression in its top;
and in which depression the burner chamber is located, and which top is placed
upon the same plane as that of the stove cover, and forms a separate part
thereof, the burner chamber having openings leading to the top of the cover,

page_text: and a conduit for conveying combustible gas into said burner chamber, combined
with a pipe connected to the conduit, and through which the gas is introduced, and
which pipe forms a handle for the cover, substantially as set forth.
Dated this 11th day of April 1899
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.