An Improved Portable Oven
Year: 1888

page_text: Date of Application, 11th Sept.. 1888
Complete Specification Left, 9th July, 1889-Accepted, 10th Aug., 1889
PROVISIONAL SPECIFICATION.
An Improved Portable Oven:
I WILLIAM HILL of 24A Silchester Road Notting Hill in the county of Middlesex
Tin plate worker do hereby declare the nature of this invention to be as follows:-
In the specification of my Patent No. 12667 dated the 22nd day of September 1884
1 described a portable oven that was suitable for use only with an ordinary fire grate
being hung or placed in front of the same. Now the object of this my present inven-
tion is to produce a portable oven that can be used not only with an ordinary fire
grate in manner aforesaid but also with a gas or oil stove or with any other usual and
suitable heating appliance or apparatus being equally capable of performing its
function whether hung or placed in front of the heating appliance or apparatus or on
top of the same.
To carry out this object I form a chamber of the desired shape and size the top the
bottom and the two sides of the casing whereof are made of tin or other suitable
metal or material that is a good non conductor of heat as also is the front wherein can
be made the door of the oven and a large aperture is made in the bottom of the casing.
The back of the chamber is made of sheet iron or other suitable metal or material
that is a good conductor of heat as also is an upper bottom between which and the
aforesaid bottom of the casing a space is created which space is open below the back
of the chamber but is closed round its other three sides and a plate or tray also of tin
or other nonconducting metal or material is fitted in and to this space which can be
slid thereinto to cover the bottom of the casing and close the aperture therein and can
be drawn thereout to open the aperture and this plate or tray is or can be so fitted
with such stops and other appliances that when so drawn out it can be turned up
parallel or thereabouts with the back of the oven and be there retained.
The inner closed chamber whereof the top the front and the two sides are made of
nonconducting material while the back and bottom are made of conducting material
constitutes the oven within which may be any suitable trays or shelves and to which
may be fitted any usual regulator for the heat while handles may be fitted to the casing.
When the oven is to be used in front of the heating appliance or apparatus the plate
or tray is slid into the space below the oven to close the aperture in the bottom of the
casing and the oven is duly hung or placed and then the heat can play on the back
of the oven and entering the space below the same can also play on the bottom thereof,
and when the oven is to be used on top of the heating appliance or apparatus the
plate or tray is drawn out of the space below the oven to open the aperture in the
bottom of the casing and if so fitted is turned up parallel or thereabouts with the back
of the oven and the oven is duly hung or placed and then the heat can enter through
the aperture and play on the bottom of the oven and passing up the space between
the turned up plate or tray and the oven can also play on the back thereof.
ΠΑΛΙΑ
COMPLETE SPECIFICATION.
An Improved Portable Oven.
I WILLIAM HILL of 24A Silchester Road Notting Hill in the county of Middlesex
Tin plate worker 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 :-
In the specification of the Patent granted unto me dated the 22nd day of September
1884 and numbered 12667 I described a portable oven that was suitable for use only
with an ordinary fire grate being hung or placed in front of the same.
Now the

page_text: object of this my present invention is to produce and provide a portable oven that can
be used not only with an ordinary fire grate in manner aforesaid but also with a gas
or oil stove or with any other usual and suitable heating appliance or apparatus being
equally capable of performing its function whether hung or placed in front of the
heating appliance or apparatus or on top of the same.
In order clearly to explain this my present invention I refer to the accompanying
drawing in which I have shewn one and what I consider a very convenient while
extremely simple form of my portable oven.
Figure 1 is a transverse vertical section of the oven as and when hung in front of a
fire grate. Figure 2 is a transverse vertical section of the oven as and when placed
on top of the hot plate of a stove and Figure 3 is an horizontal section of the oven
taken at a bin Figure 2.
To carry out my aforesaid object I construct in any usual and convenient manner a
chamber of the desired shape and size and the top A the bottom B and the two sides D
of the casing of this chamber are made of tin or other suitable metal or material that
is a good nonconductor of heat as also is the front E wherein and whereto can be
fitted the door F and in the bottom B is made a large aperture H. The back K of
the chamber is made of sheet iron or other suitable metal or material that is a good
conductor of heat as also is an upper bottom L between which and the aforesaid
bottom B of the casing a space is created which space is open below the back K of
the chamber but is closed round its other three sides and a plate or tray M of tin or
other nonconducting metal or material is fitted in and to this space which plate M can
be slid thereinto to cover the bottom B of the casing and close the aperture H therein
as is shewn in Figure 1 and can be drawn thereout to open this aperture H and this
plate M can be and preferably is constructed as is shewn in the drawing with such
ends and sides and fitted with such stops and other usual and necessary appliances
that when so drawn out it can be turned up parallel or thereabouts with the back K
of the chamber as is shewn in Figure 2 and can be there retained.
The inner closed chamber whereof the top A the front E and the two sides D are
made of nonconducting material while the back K and the bottom L are made of
conducting material constitutes the oven within which may be placed any suitable
trays or shelves N and to which may be fitted any usual regulator for the heat
while handles may be attached to the casing for convenience of carrying or
otherwise.
When this oven is to be used in front of the heating appliance or apparatus say for
example an ordinary fire grate as is shewn in Figure 1 the plate M is slid into the space
below the oven to close the aperture H in the bottom B of the casing and the oven
can be hung from the grate bars P by the hooks R or be otherwise placed in front of
the same and then the heat can play on the back K of the oven and entering the
space below the same can also play on the bottom L thereof and thus according to
this arrangement, the oven is well capable of performing its desired function.
'
When on the other hand this oven is to be used on top of the heating appliance
For apparatus say for example the hot plate of a stove as is shewn in Figure 2 the
plate M is drawn out of the space below the oven to open the aperture H in the
bottom B of the casing and the oven can be placed on or above, the hot plate T or
be otherwise hung above the same in such wise that the aperture H in the bottom B
coincides with or is directly above the aperture V in the hot plate T and if so fitted
the plate M is turned up parallel or thereabouts with the back K of the oven and
then the heat can enter through the aperture H and play on the bottom L of the
oven and passing up the space between the plate M and the oven can also play on
the back K thereof and thus according to this arrangement also the oven is well
capable of performing its desired function.
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 I
**claim is
1. In a vortable over the combination of the noncondusting tan A front ŉ sides D.

page_text: and lower bottom B and the conducting back K and upper botto: L of the oven with
the aperture H in the bottom B and the plate M substantially as and for the purposes
hereinbefore described and declared.
2. The portable oven substantially as hereinbefore described and shewn in the
accompanying drawing.