Improvements in Oil or Gas Cooking Stoves or Ovens.
Year: 1896

page_text: Date of Application, 21st Sept., 1896
Complete Specification Left, 19th June, 1897-Accepted, 31st July, 1897
PROVISIONAL SPECIFICATION.
Improvements in Oil or Gas Cooking Stoves or Ovens.
HENRY BENNETT 14 Elmfield Terrace Darlington, in the County of Durham,
Inspecting Engineer, do hereby declare the nature of this invention to be as
follows:--
My invention consists in the confinement of Hot Air, arising from the burning of
gas, or oil Lamps, underneath or connected with an oven or cooking stove. Around
the sides back and top of the oven, I would have an air chamber with an inch or other
suitable space, the outer casing to project underneath the oven all round to the extent
of about an inch leaving nearly the whole of the bottom of the oven free for the flame
to act upon, excepting the front side to which the door may be fixed. The said space
or air chamber to be perfectly air-tight excepting the opening round the bottom
through which the hot air or flame enters, outside and entirely covering the said air
chamber I would have an inch or other suitable thickness of slag wool felt, wood, or
other nonconducting material to prevent radiation or loss of heat, what fumes or
effluvia that may arise from the hot air in the chamber would have to escape through
the opening round the bottom, through which the hot air entered and if thought
necessary and to prevent the same from getting into. the room a small channel may
be constructed round and outside the packing projecting a little below the bottom
of the oven all round below the level of the opening to the air chamber the fumes
would then gather in the channel and be conveyed out of the room by a pipe
connected to the top part of the said channel.
For boiling pans or kettles I would construct on the top of the oven domes of
suitable size with lids so that when the lids were removed the pans could be inserted.
The said pans could be made with a projecting ledge round the upper part, to rest
on the top of the dome and so keep the hot air from escaping. A space an inch
or more round the sides of the pan and the inner circle of the dome would allow the
hot air to circulate around and underneath the said pan.
The domes to be covered with a nonconducting material similar to the other part
of the oven.
OMPLETE P
ION.
Improvements in Oil or Gas Cooking Stoves or Ovens.
HENRY BENNETT of Tees View Croft near Darlington, and late of 14 Elmfield
Terrace Darlington both in the County of Durham, Inspecting 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 consists of an oven heated by hot air arising from the burning of Gas
or oil lamps underneath or connected with the same, around the sides back top and a

page_text: portion of the bottom of the oven. I would have an air chamber with about an inch
of space, the said air chamber to be perfectly air tight excepting in the opening in
the bottom through which the hot air or flame enters. Outside and covering this air
chamber I would have about an inch in thickness of slag wool, felt, wood or other
nonconducting material to prevent radiation or loss of heat, what fumes or effluvia
that may arise from the hot air chamber would have to escape through the opening
in the bottom, by which the hot air enters. But to provide for the escape of the
vapour which would arise from condensation when first lighted, a slide may be fixed
in the bottom of the oven at the back of the opening where the flame enters and to
be left open for a few minutes after first lighting, and if thought necessary, and to
prevent any vapour or fumes from getting into the room, a small channel may be
constructed round and outside the packing and projecting a little below the bottom of
the oven and the opening to the air chamber, the vapour or fumes would then gather
in the channel and be conveyed out of the room by a pipe connected to the top part
of the said channel. For boiling pans or kettles I would construct on the top of the
oven domes of suitable size with lids, so that when the lids were removed the pans
could be inserted, the said pans could be made with a projecting ledge round the
upper part to rest on the top of the dome, and so keep the hot air from escaping.
In order that my invention and the manner in which the same is to be performed
may be more readily and clearly understood, reference is made to the accompanying
drawings and to the letters and marks thereon.
Figure 1 is a sectional elevation; Figure 2 is a vertical section, whilst Figure 3. is
a plan through 8. t. in Figure 1. The letter a in different parts of the drawing
indicates the air chamber, as also b. indicates the packing of slag wool or other
nonconducting material, c c shew two gas jets, the flame entering through the
opening d, and passes along the channel e e in Figure 3 in the direction of the arrows
shown in Figure 1. The hot air rising draws the air from the back along the two
channels f. f. and so revolves round the oven g is a slide valve to open (when first
lighted) to let out any vapour that may arise in the air chamber. To grill chops or
steaks a gridiron may be placed underneath the bottom of the oven in close
proximity to the air chamber, the heat radiating from which is sufficient for grilling
and other purposes.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is;-
1. A cooking oven heated by hot air from the flame of gas, or oil lamp, the said
hot air to be totally confined around and about the said oven, and made to revolve as
herein set forth, by the construction of the air chamber.
2. The hot air to be conserved from loss of heat by the air chamber being covered
with a thickness of a nonconducting material.
3. The said hot air chamber to have no connection with the interior of the oven,
the bottom of which may be used as a grill, all combined, arranged and operating
substantially as herein before described with reference to the accompanying drawings.
Dated this 18th day of June 1897.