Improvements in Gas-cooking Stoves.
Year: 1890

page_text: Date of Application, 13th Aug., 1890
Complete Specification Left, 13th May, 1891-Accepted, 13th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Gas-cooking Stoves.
I SIGISMOND LEONI Engineer of 70 Albert Street Camden Town London N.W.
County of Middlesex, do hereby declare the nature of this invention to be as
follows:-
1. My invention consists in the construction of a cast iron hollow casing with
necessary partitions and divisions forming passages for the gas to flow from the gas
taps direct to the inlet of the various burners fitted to the hot plate; the said casing
is fixed underneath and up to the hot plate frame. This improvement will do away
with the present complicated costly system of gas pipes bent and set to suit the
position of each burner, such bending and fitting requiring much skilled labor;
the pipes and fittings taking up much space are often in the way of the gas flames
and are greatly exposed to the injurious effects from the overboiling of the vessels.
2. In the construction of a loose portable metal heat deflector made of separate
plates which ride between the bars of the grating used above the burners fitted
immediately under the hot plate frame. The separate plates of the heat deflector
dropping between the bars will reach a space close above the gas jets; from the
heat generated by the gas flames the said plates will soon get red hot and deflect
their heat upon viands or toast which can be placed immediately below the gas
flames.
3. In the construction of the outside frames which form the sides and back of
the oven; these frames to be cast with the addition of open cases near the bottom
end of their inside; the said cases made sound with metal lids will form the burners
necessary to heat the oven.
4. In the construction of a longitudinal square shaped metal hollow bar which is
fixed below the oven door forming a basis or support for the said door and holding
together the two side frames of the oven, the said bar being hollow forms a chamber
for the gas which will flow from this chamber to the inlet of the burners provided
inside the oven against the side frames.
5. In the application of a metal wedge to take the place of the ordinary door
latch or bolt; the wedge is screwed against the side frame and moves over the
surface of the door securing the same firmly in its place.
COMPLETE SPECIFICATION.
Improvements in Gas-cooking Stoves.
I, SIGISMOND LEONI, of Red Lion Square, in the County of London, Engineer,
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 :-
My invention relates to gas-cooking stoves and comprises a hollow casing
provided with covers and having partitions and passages, whereby the gas is
conducted direct from each gas tap to the burners arranged in series, the said
casing being fixed underneath the hot plate, thus dispensing with the usual costly
system of gas pipes bent and set to suit the position of each burner, the bending
and setting of such pipes involving much skilled labour, and the pipes and fittings
being frequently in the way of the gas flames and exposed to the injurious effects
resulting from the overboiling of the cooking utensils.

page_text: My invention also comprises a loose portable heat deflector consisting of a frame
having a number of plates which fit between the burner-bars so that they are
located just above the gas jets thereof; a hollow bar forming a support for the
oven door and holding together the two side frames of the oven and forming a
chamber from which the gas flows to the burners inside the oven; and a turn-
buckle which in my Provisional Specification I termed a wedge to take the place
of the ordinary door latch or bolt.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawings, in which :-
Figure 1 is a plan view of the hot plate of a gas cooking stove with my hollow
casing applied thereto :
Figure 2 is a section on line A B of Figure 1:
Figure 3 is a section on line CD of Figure 1:
Figure 4 is an inverted plan of the hollow casing with the covers removed:
Figures 5 and 6 are plan views of two of the covers of the hollow casing:
Figures 7 and 8 are sections on the lines E F and G H of Figures 5 and
respectively:
Figures 9 and 10 are a plan and longitudinal section respectively of my heat
deflector having its several plates integral with the frame:
Figure 11 is a plan of one of the plates shewing how they can be made separate
from the said frame:
Figure 12 is a plan view of my hollow door support:
Figure 13 is a section on the line I J of Figure 12:
Figure 14 is an elevation shewing the application of my turn-buckle to the door
of a gas cooking stove; and,
Figure 15 is a plan of Figure 14.
Referring to Figures 1 to 8 a is the hollow casing, and b, bare the covers of the
same secured thereto by means of screws e, c; d, e, f and y are the partitions,
whereby the casing a is divided into four chambers or passages h, ij, and k;
1,1,1 are the gas taps fitted between the gas supply tube m (also made of a casing
having a removable cover) and the hollow casing a, there being one gas tap to
each of the four chambers h, i, j, k; n, o, p and are the four series of burners.
open at the end which is adjacent to the hollow casing a, in which latter, holes r
are made for the passage of the gas from the casing to the interior of the burners.
The burners are made removable from the framings of the hot plate t in a similar
manner to that described in the Specification of my former Letters Patent
No. 15225 of 1889. The hollow casing a is secured to the hot plate t by some of
the screws c which are made long enough for this purpose.
w, Figures 9, 10, and 11 is the frame and a, v, v are the plates forming my loose
portable heat deflector, the frame and plates being formed integral and the plates
being perforated and having spaces 20 between them so that they can fit between
any of the burner-bars; they are also provided with pins or pegs on their under
surfaces, which pins or pegs are in close proximity to the gas jets and afford
increased heating surface to the deflector which will soon become red hot and
deflect the heat onto viands or toast which can be placed immediately below the
gas flames.
y, Figures 12 and 13, is the hollow bar extending along the front of the stove
below the oven door for which it forms a support. This bar is provided with a
removable cover and with lugs a', whereby it is adapted to hold together the two
sides of the oven. It is also formed with supports for one end of the burner-
bars c¹ inside the oven against the side frames and with holes through which the
gas entering at a flows into the burners.
el, Figures 14 and 15, is the turn-buckle which I use instead of the ordinary
oven door latch or bolt. It is mounted on a pin f' in the door frame g' and can be
moved over the surface of the door, thereby firmly securing the same, a stud, h
being provided on the oven door nearly flush with the beading thereof to form a
bearing for the turn-buckle. The rear face of the inner end of the turn-buckle is

page_text: made with a groove i¹ in which is located a stud j¹ on the door frame g¹ in order to
limit the extent of rotation of the turn-buckle. The dotted lines, Figure 14, shew
the turn-buckle in its open position.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is:-
1. In a gas cooking stove the use of a hollow casing applied beneath the hot
plate and provided with covers and having partitions which divide it into chambers
for conducting the gas direct to the burners, substantially as herein before described
and illustrated in Figures 1 to 8 of the accompanying drawings.
2. The use in a gas cooking stove of a loose portable heat deflector consisting of
a frame having a number of plates adapted to fit between the burner-bars for the
purpose set forth and substantially as hereinbefore described and illustrated in
Figures 9, 10 and 11 of the accompanying drawings.
3. The application to a gas cooking stove of a hollow bar forming a support for
the oven door and adapted to hold together the two side frames of the oven, the
said bar forming a direct passage for the gas from the supply-pipe to the burners
inside the oven, substantially as hereinbefore described and illustrated in Figures 12
and 13 of the accompanying drawings.
4. The application to the oven doors of a gas cooking stove of the kind herein.
before described, of a turn-buckle arranged and operating as set forth.
Dried the 12th dox of Mo 1901
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.