AN IMPROVED HOT AIR STOVE FOR WARMING AND VENTILATING."
Year: 1874

page_text: LETTERS PATENT to John Bradford Whiting, of the Vicarage,
Broomfield, Chelmsford, in the County of Essex, for the Invention
of "AN IMPROVED HOT AIR STOVE FOR WARMING AND VENTILATING."
PROVISIONAL SPECIFICATION left by the said John Bradford Whiting
at the Office of the Commissioners of Patents, with his Petition,
on the 17th Junc 1874.
:
I, JOHN BRADFORD WHITING, of the Vicarage, Broomfield, Chelms-
ford, in the County of Essex, do hereby declare the nature of the said
Invention for "AN IMPROVED HOT AIR STOVE FOR WARMING AND VENTILATING,"
to be as follows:-
My Invention consists of a stove with three compartments, in one of
which the fuel is placed so as to be subject to slow combustion; the
second compartment receives the heated gases as they pass from the
fire, and through which tubes (round or other shape) are fitted with one
end open in connection with a fresh air inlet led from the external air,

page_text: (by preference) the other ends of said tubes are open to the air of the
apartment required to be heated.
Transverse plates of iron or other material divide the compartment or
chamber in which the tubes are fitted in such a manner that the
heated gases first strike those ends of the tubes which are in closest
proximity to the air of the apartment, they are then caused to trans-
verse past and around the remaining portion of the tubes until they
finally pass into the third compartment, which is in direct communica-
tion with the smoke flue.
It will be understood that fresh heated air is being continuously
drawn into the apartment, and in consequence of that portion of the
tubes nearest the outlet being heated to a higher degree than the other
end or inlet the velocity of the fresh air current is increased, and the
extraction of heat from the gases in the compartment or chamber sur-
rounding the tubes is rendered thereby most perfect.
In some cases I construct a cold air chamber beneath the stove where
the amount of the fresh air admitted is regulated, and above is a hot
air chamber into which the air tubes open.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Bradford Whiting in the Great Seal Patent 2
Office on the 16th December 1874.
TO ALL TO. WHOM THESE PRESENTS SHALL COME, I, JOHN
BRADFORD WHITING, of the Vicarage, Broomfield, Chelmsford, in the
County of Essex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 2
Letters Patent, bearing date the Seventeenth day of June, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Bradford Whiting, Her
special licence that I, the said John Bradford Whiting, my executors,
administrators, and assigns, or such others as I, the said John
Bradford Whiting, 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 law-

page_text: fully 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 "AN IMPROVED HOT AIR STOVE FOR WARMING AND VENTILATING,"
upon the condition (amongst others) that I, the said John 'Bradford
Whiting, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should par-
ticularly 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 John Bradford Whiting, 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:—
My Invention consists of a stove with three or more compartments,
in one of which the fuel is placed so as to be subject to slow com-
bustion; the second compartment receives the heated gases as they pass
from the fire, and through which tubes (round or other shape) are fitted
with one end open in connection with a fresh air inlet led from the
external air, the other ends of said tubes are open to the air of the
apartment required to be heated.
Transverse plates of iron or other material divide the compartment or
chamber in which the tubes are fitted in such a manner that the heated
gases first strike the upper ends of the tubes, they are then caused to
traverse past and around the remaining portion of the tubes until they
finally pass into the third compartment, which is in direct communica-
tion with the smoke flue.
It will be understood that fresh heated air is being continuously drawn
into the apartment, and in consequence of that portion of the tubes
nearest the outlet being heated to a higher degree than the other end or
inlet the velocity of the fresh air current is increased, and the
extraction of heat from the gases in the compartment or chamber sur-
rounding the tubes is rendered thereby most perfect.
In some cases I construct a cold air chamber beneath the stove where
the amount of the fresh air admitted is regulated, and above is a hot air
chamber into which the air tubes open.

page_text: And in order that my said Invention may be more readily understood
and carried into effect I have annexed to this my Specification
Drawings illustrating my said Invention.
1