IMPROVEMENTS IN COOKING APPARATUS
Year: 1879

page_text: LETTERS PATENT to Robert Henry Wylde, of the Firm of Mess". Beverley
and Wylde, of Leeds, in the County of York, Gas Cooking and Heating
Apparatus Manufacturers, for the Invention of IMPROVEMENTS IN COOKING
APPARATUS,"
Sealed the 3rd October 1879, and dated the 4th April 1879.
PROVISIONAL SPECIFICATION left by the said Robert Henry Wylde at the
Office of the Commissioners of Patents on the 4th April 1879.
ROBERT HENRY WYLDE, of the Firm of Messrs. Beverley and Wylde, of Leeds,
in the County of York, Gas Cooking and Heating Apparatus Manufacturers.
"IM-
PROVEMENTS IN COOKING APPARATUS."
This Invention relates to cooking apparatus wherein the heat is supplied by
either gas, oil, spirits of wine, or other inflammable substance consumed in the
interior of the stove or oven, and the object of my Invention is to prevent loss of
heat by radiation, or by constructing the sides of the apparatns in such a manner
that they shall be non-conductors of heat. To effect this object, I form the sides
of double plates of iron or other metal, leaving a space between the two plates in
which I insert a layer or thickness of packing composed of slag-wool, "silicate"-
cotton, "asbestos," plaster of Paris, or some such non-conducting substance, and also
a layer or thickness of earthenware tiles or fire-clay. Or I may enclose the packing
only between the two metal plates and employ tiles for the inner or outer coating
of the oven or stove,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
•
the said Robert Henry Wylde in the Great Seal Patent Office on the 4th
October 1879.
ROBERT HENRY WYLDE, of the Firm of Mess. Beverley and Wylde, of Leeds.
in the County of York, Gas Cooking and Heating Apparatus Manufacturers. "IM-
PROVEMENTS IN COOKING APPARATUS."
This Invention relates to cooking apparatus wherein the heat is supplied by either
gas, oil, spirits of wine, or other inflammable substance consumed in the interior
stove or oven; and the object of my Invention is to prevent loss of heat by radiation
by constructing the sides of the apparatus in such a manner that they shall be non-
conductors of heat. To effect this object I form the sides of double plates of iron
or other metal, leaving a space between the two plates in which I insert a layer or
thickness of packing composed of "slag-wool," silicate-cotton, asbestos, or some such
non-conducting substance; also a layer or thickness of earthenware tiles or fire
clay. Or I may enclose the packing only between the two metal plates and
employ tiles for the inner or outer coating of the oven or stove.
Such being the nature and object of my Invention, I will now proceed to describe
the same in detail; and in order that the Invention may be more clearly understood
reference is given to the annexed Sheet of Drawings, which are sections of the casing
of a gas stove or cooking apparatus. In Fig. 1_I_have_shewn a combination of
parts where A is the outer shell or plate, B is a second plate, and C is a third
plate. Between the plates A and B is inserted packing D, composed of any suitable
non-conducting substance, and between the plates B and C are a series of earthen-
ware tiles E, all being arranged in such manner as to prevent the least possible loss
of heat by radiation. Fig. 2 is the same arrangement as Fig. 1 without the third
or inner plate C, and Fig. 3 shews a view without the tiles.
Having thus described the nature of my Invention, and shewn by Drawings how
the same may be carried into practice, I would have it understood that I do not
limit nor confine myself to the exact details berein shewn, as the same may be
varied without departing from the essential features thereof, for instance, the tiles
may be placed outside instead of inside the stove, or the tiles may be placed between
the packing D and outer plate A, what therefore I claim as my Invention is,—
The combination and arrangement of parts for use in cooking apparatuses, sub-
stantially as described and illustrated in the Drawings.
In witness whereof, I, the said Robert Henry Wylde, have hereunto set my
hand and seal, this Second day of October, in the year of our Lord One
thousand eight hundred and seventy-nine.