Improvements in Gas Cooking Apparatus or Burners.
Year: 1895

page_text: Date of Application, 23rd Dec., 1895
Complete Specification Left, 23rd Sept., 1896-Accepted, 12th Dec., 1896
Improvements in Gas Cooking Apparatus or Burners.
I, EDMOND WALTER TYRRELL RICHMOND, Director, of Academy Street,
Warrington, in the County of Lancaster, do hereby declare the nature of this
invention to be as follows:-
This invention has reference to gas cooking apparatus or burners, generally
called gas grills or grillers, that is to say, gas apparatus comprising a burner or
burners and a frame or case in which said burners are mounted and used; and the
type of such apparatus to which this invention has special reference is that in
which the burner is of duplex kind, that is to say where there are two burners,
one under and one above a grill plate.
A cooking apparatus according to this invention comprises a grill plate having
on its under and upper sides two burners, said plate being secured or mounted in a
frame which fits upon the main body casing, or base, of the apparatus, oven, or
cooker, and the whole is adapted to be taken off and placed in an opposite position
on such body or base as and when desired, the pipe and nozzles supplying gas to
the burners being also, in some cases, carried by and moved along with the carrying
frame. On the upper and under side of the grill plate there are employed burners
complete in themselves, and separable from the plate, such burners being fastened
to the plate by bolts or screws or equivalent means. The burners may conveniently
be of annular form, with gas or air inlets or trunks leading to them from one of the
edges of the frame. According to a modification the gas taps, pipe, and fittings can
be separate from the burner frame; for instance they may be fixed on the side of
the base or body on which the grilling parts are fitted.
The grill plate is provided with apertures about the burner for the purpose of
admitting air to the under burner and effecting a better and more perfect
combustion of the gas. These apertures are, in one case, provided by forming this
grill plate of gridded form, outside and within the burner.
As regards the feature of the separate or separable burners, by the construction
described, the burners proper can be removed from the grill plate and a new plate
provided, in case of the original one being burnt out or spoiled, and without the
necessity of new burners, or the making of any special connection between the
burners and plate. And by the construction described, as regards the reversible
frame and burner as specified, the whole burner portion with the gas fittings etcetera,
can be changed about in its base, or fitted on its base with the gas pipe and
burner nozzles at one end or the other, as may be most convenient or desirable.
It is to be stated that the improvements or features hereunder may be applied
or used singly in gas cooking apparatus, or in combination therein as specified.
Dated this 21st day of December 1895.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents.

page_text: I, EDMOND WALTER TYRRELL RICHMOND, Director, of Academy Street,
Warrington, in the County of Lancaster, 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 has reference to gas cooking apparatus or burners, generally
called gas grills or grillers, that is to say, gas apparatus comprising a burner or
burners and a frame or case in which said burners are mounted and used ; and the
type of such apparatus to which this invention has special reference is that in
which the burner is of duplex kind, that is to say where there are two burners, one
under and one above a grill plate.
A cooking apparatus according to this invention comprises a grill plate having
on its under and upper sides two burners, said plate being secured or mounted in a
frame which fits upon the main body casing, or base, of the apparatus, oven, or
cooker, and the whole is adapted to be taken off and placed in an opposite position
(i.e. rotated in the horizontal plane) on such body or base as and when desired, the
pipe and nozzles supplying gas to the burners being also, in some cases, carried by
and moved along with the carrying frame. On the upper end and under side of
the grill plate there are employed burners complete in themselves, and separable
from the plate, such burners being fastened to the plate by bolts or screws or
equivalent means. The burners may conveniently be of annular form, with gas or
air inlets or trunks leading to them from one of the edges of the frame. According
to a modification the gas taps, pipe, and fittings can be separate from the burner
frame; for instance they may be fixed on the side of the base or body on which
the grilling parts are fitted.
The grill plate is provided with apertures about the burner for the purpose of
admitting air to the under burner and effecting a better and more perfect combus-
tion of the gas. These apertures are, in one case, provided by forming this grill
plate of gridded form, outside and within the burner.
As regards the feature of the apparatus or separable burners, by the construction
described, the burners proper can be removed from the grill plate and a new plate
provided, in case of the original one being burnt out or spoiled, and without the
necessity of new burners, or the making of any special connection between the
burners and plate. And by the construction described, as regards the reversible
frame and burner as specified, the whole burner portion with the gas fittings etcetera,
can be changed about in its base, or fitted in its base with the gas pipe and burner
nozzles at one end or the other, as may be most convenient or desirable.
It is to be stated that the improvements or features hereunder may be applied
or used singly in gas cooking apparatus, or in combination therein as specified.
Referring to the drawings,
Figure 1 is a plan of gas cooking apparatus according to this invention, with the
upper plate or cover broken away shewing the burner beneath.
Figure 2 is a section through the apparatus taken at the line A. A. Figure 1.
Referring to the drawings, a generally represents the grill plate. On the
opposite sides of this plate the upper and lower burners b b are disposed. The
faces of the burners in which the flame nozzles or holes c are provided, are inclined;
while the bases which come next the plate a are horizontal, and fit on to the face
of the plate a at a point between the periphery and the central aperture of the
plate; and they are fastened in position on the plate by clamping stud bolts d on
the cover k which pass through lugs e on the burners, so that the two burners are
clamped on to the opposite sides of the plate a, and to the cover k. These burners,

page_text: as shewn, are of annular form, and are provided with a neck, ff', that belonging to
the upper burner being arranged at one side, viz. at the front of the cooking
apparatus, and that on the underside of the plate a towards the back. These
necks constitute the air and gas mixing tubes of the burners.
The periphery of the grill plate a is provided with holes through it, substantially
all round, while the annular portion within the burners, that is around the central
hole j, is also provided with holes i. By these holes placed in the position shewn,
a better and more perfect combustion of the gas issuing from the flame nozzles or
holes c on both sides of the burner, is effected.
The grill plate a, with the burners on it, is supported from the cover or plate k
of the apparatus, by stud bolts d as specified; and this plate or cover k rests upon
the case or body m of the cooking apparatus, and fastened down by screws l. The
cover k also carries a pipe o, being supported from the parts of the cover by the
taps p; and the pipe o is connected, say by an indiarubber pipe 9, with the gas.
supply or service, the taps p discharging the gas into the mixing tubes ff of the
burners as jets, in the usual way. By this combination of the outer plate or cover,
burners, and their carrier plate, and the gas supply parts specified, being all
connected as described, the cover and parts can be arranged with the gas supply
on the one side as shewn; or the whole parts turned about, so that the gas supply
comes on the other side.
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 :-
1. In gas cooking apparatus of the kind herein referred to, a plate a containing
burners, and having apertures, as h and i, in it, disposed in relation to the positions
in which the flames of said burners come, substantially as set forth, for the purposes
specified.
2. In gas cooking apparatus of the kind herein referred to, a plate a, having
above it a burner b, and below it a burner 6¹, arranged on said plate, and fastened
substantially as set forth with reference to and shewn in the drawings.
3. In gas cooking apparatus of the kind herein referred to, the combination of
a grill plate or the like with burners, a plate or cover above same, and having
connected with it said burner plate and gas supply parts, arranged and operated
substantially as and for the purposes set forth.
4. The cooking apparatus having parts arranged combined and constructed
particularly as shewn in the drawings and set forth with reference thereto.
Dated this 21st day of September 1896.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents.