1MPROVEMENTS IN GAS COOKING- STOVES
Year: 1881

page_text: LETTERS PATENT to William Thomas Sugg, of Vincent Street, in the City
of Westminster, for an Invention of "1MPROVEMENTS IN GAS COOKING-
STOVES."
"
PROVISIONAL SPECIFICATION left by the said William Thomas Sugg at the
Office of the Commissioners of Patents on the 16th June 1881.
WILLIAM THOMAS SUGG, of Vincent Street, in the City of Westminster.
IMPROVEMENTS IN GAS COOKING STOVES."
The chief object of this Invention is to improve that class of gas cooking stove
in which the gas pipe is placed outside the stove, the jets being arranged hori-
zontally so that the gas flame shall enter through slots or openings in the side of
the stove.
The Invention also consists in a novel arrangement of gas stove in which all
domestic requirements as to cooking or heating may be effected, parts of such
arrangement being applicable to gas stoves already in uso.
In carrying out my Invention I prefer to use a roasting oven either of cylindrical
form or rectangular with an arched roof. On either side of the oven I form a long
slot or opening nearly the length of the oven, and outside these slots or openings I
place a covered gallery. This gallery contains the gas pipe which is provided with
a number of flat flame gas burners, which I have found to be preferable to ordinary
gns jets. A row of holes is formed in the top and bottom of the outer wall of this
gallery to admit air which becomes thoroughly heated by contact with the flames
before passing into the oven. The ends of the galleries are closed up, so that in
order to light the gas it is necessary to raise the cover which is made movable for
the purpose. I thus prevent explosion, as the gas can escape into the air instead of
being coufined in the gallery or oven. By the above described arrangement of
apparatus I am enabled to ensure a perfect combustion of the gas and obtain in the
oven a more diffused heat than heretofore without any unpleasant smell. A suitable
ventilator is placed in the crown of the roasting oven to ventilate the oven.
The door or front of the oven is formed by one end of a moveable trough or
lining in which the joint to be cooked is placed, either on a stand or on a spit
n

page_text: which is supported in bearings in the ends of the trough or lining, a clockwork
arrangement being provided to give rotary motion to the spit. This trough rests
on the bottom of the oven, and is provided at its front end with a roller or wheel
which supports it when drawn out of the oven.
The heat from the roaster passes off through the ventilator to a chamber placed
above provided with doors. In this chamber a baking oven is arranged so that
the heated air may circulate all round it. I prefer that this chamber shall have an
arrangement of burners similar to that described for the roasting oven. The heated
air and products of combustion pass from this chamber to a central flue box which
is in connection with the chimney. This flue box is closed at top and forms a hot
plate, and on either side of this box are arranged one or more compartments con-
taining ring burners. Above these burners I place guard plates having a central
hole, and which may be either flat or curved, their office being to prevent dirt from
the bottoms of kettles or saucepans falling onto the burners and choking them.
Above the guard plate I arrange flat plates which form the top of the stove and
are flush with the cover of the fluo box. These top plates have a central holo over
which the vessel to be heated is placed. The space between the guard and top
plates is in connection with the flue box, so that the products of combustion are
effectually carried off.
At the end or side of the stove I may place a plate warming cupboard which
may be heated by the waste heat from the stove or from special burners arranged
as above described, and above this cupboard I arrange a boiler for heating water.
This boiler may be in direct connection with the house cistern, or it may be
provided with a supply cistern. The cold water I propose shall in all cases be
supplied to the boiler at the bottom, and the hot water be drawn from the top, for
which purpose I connect with the tap a short tube or its equivalent which shall
reach nearly to the high water level of the boiler. Above the boiler I place a
steaming chamber which is supplied with steam by a pipe open to the steam space
in the boiler.
The plate warmer and boiler with its accessories may be inado separate from the
stove, and will, as will the guard plates, be readily applicable to gas stoves already
in use.
The products of combustion will be carried off, by a suitably arranged
flue.
In all cases in lieu of atmospheric burners I use flat flame burners, which are
more economical and do not give off any disagreeable smell.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Thomas Sugg in the Great Seal Patent Office on the
16th December 1881.
"
WILLIAM THOMAS SUGG, of Vincent Street, in the City of Westminster.
'IMPROVEMENTS IN GAS COOKING STOVES."
The chief object of this Invention is to improve that class of gas cooking stovo
in which the gas pipe is placed outside the stove, the jets being arranged hori-
zontally so that the gas flame shall enter through slots or openings in the side of
the stove.
The Invention also relates to a novel arrangement of gas stove in which all
domestic requirements as to cooking or heating may be effected, parts of such
arrangement being applicable to gas stoves already in use.
In the accompanying Drawing, Fig. 1 is a front elevation partly in section of a
gas cooking stove constructed according to my Invention; Fig. 2 is a plan view
with part of the top plate removed; and Fig. 3 is a cross section on the line x, x,
Figures 1 and 2.
A is a roasting oven of rectangular form with an archod roof.
On either side of this oven A. I form a long slot or opening a nearly the whole
length of the oven, and outside each slot or opening a I place a gallery b. This
gallery b contains a gas pipo c which is fitted with a number of flat flame gas
burners d. A row of holes e is formed in the top and bottom of the outer wall of
this gallery to admit the external air which becomes thoroughly heated by contact
with the flames before passing into the oven A.
By this arrangement of apparatus I ensure a perfect combustion of the gas, and
obtain in the oven a more diffused heat than heretofore without any unpleasant
smell, while by the use of the flat flame burners I obtain a large amount of
radiated heat. The ends of the galleries are closed up, so that when it is desired
to light the gas it is necessary to raise a sloping cover ƒ with which the gallery is
provided. I thus prevent explosion, as the gas when turned on can escape into the
air instead of being confined in the gallery or the oven.
The cover f is formed at either end with a knob which serves as a handle with
which to raise and lower it. The upper edges of the end walls of the gallery are
inclined to correspond to the slope of the cover f, and at the bottom of each inclino
is an upwardly projecting finger h, against which the stem of the knobs g rest when
it is raised to light the gas (see the detached views, Figs. 4 and 5).
A sliding ventilator is placed in the corner of the roasting oven to ventilate
the oven.
The oven A is caused by a plate corresponding to the cross section of the oven,
and forming one end of a moveable trough or lining j, in which the joint to be
cooked is placed either on a stand or on a spit. When a spit is used it is supported
in bearings in the ends of the trough or lining, and is provided with an arrange-
inent of clockwork by which rotary motion is imparted thereto. The ends of the
trough rest on the bottom of the oven, and the outer end is provided with a roller
or wheels, which run on the floor and support the trough when drawn out of the
oven to place or remove the joint.
The heat from the oven A passes off through the ventilator to a chamber B
placed above it and provided with doors B'. In this chamber a baking oven C is
placed. The size of this oven is such as to allow of the heated air circulating all
round it. In some cases the heat from the oven A may be sufficient to heat the
oven C, but I find it desirable for general purposes to provido a special set of
burners similar to that described for the roasting oven.

page_text: The heated air and products of combustion pass from this chamber B through
an opening D to a flue box E, which is in connection with the chimney F. This
flue box E is closed at top and forms a hot plate, and on either side of this box are
arranged two or more compartments G containing ring burners G¹. Above these
burners I place a guard plate l having a central hole, and which may be either Bat
or curved, the office of these plates 7 being to prevent dirt from the bottoms of
kettles or saucepans falling onto the burners and choking them.
Above the guard plates I arrange flat plates m which form the top of the stove,
and are flush with the cover of the flue box E. These top plates have a central
hole over which the vessel to be heated is placed, and which are provided with
covers in the ordinary way. The space between the guard and top plates l, m, is in
connection with the flue box E, so that the products of combustion are effectually
carried off. Air to support combustion is supplied to the ring burners through
openings in the bottom of the compartments G. By the side or in rear of the
stove I may place a plate warming cupboard H, which may be heated by the waste
heat from the stove or by special burners arranged as above described. Above the
cupboard H I arrange a boiler I for heating water. This boiler may be in direct
connection with the house cistern, or it may be supplied with a supply cistern J.
The cold water will in all cases be supplied to the boiler at the bottom, and the hot
water is drawn from the top, for which purpose I connect to the tap o a short tube
or its equivalent p, which shall reach nearly to the high water level of the boiler.
In the top of the boiler I form a recess 9, in which vessels containing food to be
kept warin can be placed. Above the boiler I place a steamer (not shown) which
is supplied with steam by a pipe open to the steam space in the boiler. K is a
drip tank provided with grating on which to rest the vessels it is desired to fill
with boiling water.
The plate warmer and boiler with its accessories may be made separate from the
stove, and will, as will the guard plates, be readily applicable to gas stoves already
in use.
The products of combustion will be carried off by a suitably arranged
flue.
In all cases in lieu of atmospheric burners I use flat flame burners, which are
more economical and do not give off any disagreeable smell.
Having now described my Invention of improvements in gas cooking stoves,
and explained the manner of carrying the same into effect, I wish it to be
understood that under the above in part recited Letters Patent I claim,- :
First. The combination with a gas cooking stove or domestic heating apparatus
of covered galleries placed externally of the stove or apparatus, and gas pipes
provided with flat flame burners, substantially as herein shown and described and
for the purpose set forth.
Second. The combination with a ring of flat flame burners of guard plates, as and
for the purpose set forth.
Third. The arrangement of parts constituting a gas cooking stove, substantially
as herein described and shown in the Drawing.
Fourth. The arrangement of domestic beating apparatus consisting of a plate
warmer H and boiler I with its accessories J, o, p, q, substantially as shown and
described.
In witness whereof, I, the said William Thomas Sugg, have hereunto set my
hand and seal, this Sixteenth day of December. in the year of our Lord One