IMPROVEMENTS IN STOVES FOR COOKING PURPOSES
Year: 1874

page_text: LETTERS PATENT to Janics Stone, of Gray's Inn Road, in the County
of Middlesex, for the Invention of "IMPROVEMENTS IN STOVES FOR
COOKING PURPOSES."
Sealed the 10th November 1874, and dated the 25th July 1874.

page_text: And, Fourth. The steam arising from the boiler is utilized for the
purpose of steaming in cooking, and is conveyed from the boiler by
tubes to a kettle and a "Warren's cooking pot," the object of tho
Invention being to as completely as possible employ the heat within the
stove and prevent radiation of same.
The stove is composed of four compartments, viz., two ovens, cach
divided by a shelf, and two spaces for broiling, grilling, and toasting.
The plate at the top of the stove is of thick sheet iron, having three
perforations, over which can be placed saucepans, frying pans, or kettles
for boiling, frying, or stewing. There is also a fourth perforation, over
which stands a boiler, and immediately above this a supply cistern. The
boiler is fitted with tubes, and is furnished with a ball-cock to graduato
the supply from the supply cistern as required. Two metal tubes aro
screwed into the lid of the boiler, one of them leading to and connected
with a kettle, and the other leads to and is connected with a "Warron's
cooking pot." The use of these two tubes, is to convoy waste steam
from the boiler to the cooking pots for steaming.
The whole of the stove except the top plate is coated with "Stone's
Patent composition to prevent radiation, and the boiler is also coated
for the same purpose.
The ovens are surrounded with an air chamber, the use of which is to
supply the ovens with heat and to carry off the products of combustion.
The action is as follows:-The bottom space is supplied with a
powerful "Bunsen burner," the gas being turned on and lit heats up
the bottom plate of the oven; the air in the chamber also becomes
heated and passos with other gases completely round the two ovens,
then through the tubular boiler, from the tubular boiler through the
supply cistern, and finally through a pipe into the chimney or flue. The
top space in the stove is furnished with four small "Buuscu burners";
three of these are used for broiling, grilling, toasting, boiling, and
frying; the fourth is placed immediately below the tubular boiler, and
is intended to be used, when required, to keep the water at the boint
and to supply the kettle and "Warren's cooking pot" with steam.
As a modification the bottom and top spaces can be constructed for
the use of coal, coke, charcoal, or any other kind of fuel.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Stone in the Great Seal Patent Office on
the 25th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
STONE, of Gray's Inn Road, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of July, in the year of our
Lord One thousand eight hundred and seventy-four, in the thirty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said James Stone, Her special licence that I, the
said James Stone, my executors, administrators, and assigns, or such
others as I, the said James Stone, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN STOVES FOR COOKING
PURPOSES," upon the condition (amongst others) that I, the said James
Stone, my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said James Stone, do hereby declare the
nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Sheet of Drawings (that is to
say) :—
This Invention relates to cooking stoves heated by gas or solid fuel,
and consists,-
First. In the application to stoves of a coating of composition to
prevent radiation of heat.

page_text: several small "Bunsen" burners are placed below the hot plate B to
heat saucepans and the boiler C.
•
The action of the stove is as follows:-The large "Bunsen" burner
at A³ heats the plate at the bottom of the lower oven; it also heats the
air in the chamber; this with the products of combustion passes up the
spaco I around the ovens, then through the tubular boiler and the supply
cistern; when it has reached the pipe K, at which it escapes, it is found
to be quite cool, consequently the whole of the heat has been utilized.
The waste heat from the four small "Bunsen" burners also passes
through the tubular boiler and supply cistern, thence through the
escape pipe K into the chimney. The whole of the apparatus including
the boiler, "Warren's cooking pot," and the kettle G, G¹, G³, is coated
with "Stone's Patent electric coating," used for coating steam boilers,
steam pipes, and for other like purposes, and is marked L in the
Drawing; the use of this is to prevent radiation. It will be seen that
by this arrangement nearly the whole of the heat including waste steam
is utilised.
When desired the bottom and top spaces of the stove can be con-
structed for the use of coal, coke, charcoal, or any other kind of fuel.
Having thus described the nature and particulars of my said Inven-
tion, I claim, the improved stove for cooking purposes, substantially as
herein described.
In witness whereof I have hereunto set my hand and seal, this