A NEW OR IMPROVED GAS STOVE
Year: 1853

page_text: LETTERS PATENT to James Kimberley, of Birmingham, in the
County of Warwick, Manufacturer, for the Invention of "A NEW
OR IMPROVED GAS STOVE."
Sealed the 4th May 1858, and dated the 9th March 1853.
PROVISIONAL SPECIFICATION left by the said James Kimberley at
the Office of the Commissioners of Patents, with his Petition, on
the 9th March 1853.
1, JAMES KIMBERLEY, of Birmingham, in the County of Warwick,
Manufacturer, do hereby declare the nature of the said Invention for
"A NEW OR IMPROVED GAS STOVE" to be as follows:
My Invention consists of a gas stove, composed of any number of
vertical tubes, at or near the lower end of each of which a gas burner
is situated; the said tubes open at their lower ends into the atmosphere,
and at their upper ends into a chamber divided into two compartments
by a horizontal perforated metallic plate, the said chamber communica-
ting at its top with the atmosphere by a register, by which the amount
of air circulating through the stove may be regulated at pleasure. In
one or both of the compartments into which the said chamber is
divided I place a shallow vessel containing slaked quick lime, either

page_text: moist or dry.
dry. The vertical tubes at the bottom of which the gas flames
are situated are of such diameter that the said flames do not come
into contact with the said tubes. By the passage of the current of hot
air from the flames up the tubes and through the chamber, a large
amount of moderately heated surface is obtained, and a copious supply
of pure air made to circulate through the stove. The size of the tubes,
together with the large amount of surface over which the heat is dis-
tributed, and the large volume of air with which the products of com-
bustion are mixed, produce a rapid but moderate heating of the air of
the room in which the stove is situated, while no portion of the stove is
heated sufficiently hot to decompose any organic matter in the air, and
hence the unpleasant odour usually produced in air heated by stoves is
prevented. The lime in the chamber absorbs the carbonic acid pro-
duced during the combustion of the gas, and preserves the air of the
room in a fit state for respiration.
The tubes may be made of metal, or glass, earthenware, or other
vitreous or semi-vitreous substances, or partly of metal and partly of
the said glass, earthenware, &c.
By forming the said tubes partly of metal and partly of glass, the
illuminating as well as the heating effect of the gas flames is preserved,
and an ornamental appearance obtained.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Kimberley, in the Great Seal Patent
Office, on the 5th September 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
JAMES KIMBERLEY, of Birmingham, in the County of Warwick, Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of March, in the year of
our Lord One thousand eight hundred and fifty-three, in the sixteenth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said James Kimberley, Her special licence, that
I, the said James Kimberley, my executors, administrators, and

page_text: assigns, or such others as I, the said James Kimberley, 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 "A NEW OR IM-
PROVED GAS STOVE," upon the condition (amongst others) that I, the said
James Kimberley, by an instrument in writing under my hand and
seal, 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 Kimberley, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof (that is to say):
Figure 1, represents in elevation a gas stove constructed according to
iny Invention; Figure 2, represents a vertical section of the same; and
Figure 3, represents a transverse horizontal section of the same, the
said section, Figure 3, being taken through the line a, Figure 1. Figures
4, and 5, represent portions of the same, as herein-after described. b, b,
are a series of tubes, fixed in any convenient manner on the hollow base
c, of the stove, and opening at their lower ends into the said base, and
communicating through the said hollow base with the atmosphere: the
upper ends of the said tubes b, b, open into the chamber d, which con-
stitutes the head of the stove. At or under the lower end of each of
the tubes b, b, a gas burner e, is placed, the said burners being supplied
with gas by the pipe f; the chamber d, is closed by the moveable lid or
cover g, at the top of which is a register h, by which the quantity of air
circulating through the stove is regulated; the said chamber d, is divided
by a perforated plate or diaphragm k, which may either have a cup-like
shape as represented in Figure 2, or may be plane; that is to say, may
extend horizontally between the points d', d". Figure 5, represents in
plan the cup-like diaphragm k, Figure 2.
In the said cup-like

page_text: diaphragm k, Figure 2, I sometinies place a vessel containing slacked
quick lime, either dry or moist, for the purpose of absorbing the carbonic
acid gas produced during the combustion of the gas; and when it is not
intended to use. the said slacked quick lime, I prefer to use, instead of
the diaphragin k, the flat perforated plate described lying on the shoulder
d', d", of the chamber d.. Figure 4, represents in plan the base of the
chamber d. The vertical tubes b, b, are of such diameter, compared with
the diameter of the burners e, e, that the gas flames do not come into
contact with the said tubes. By the passage of the current of heated
air, and products of combustion from the. flames up the said tubes and
through the chainber d, a large amount of moderately heated surface is
obtained, and a copious supply of pure air made to circulate through
the stove. The heated air in its passage through the plate or perforated
diaphragm k, is deprived of much of its heat, which is communicated
to the said diaphragm, and from it to the adjoining parts of the stove;
and the said air enters the room through the register h, at a moderate
temperature, while the heat abstracted from it by the said diaphragm is
radiated in every direction by the upper parts of the stove: In order that
the plate or diaphragm k, may the more readily and effectually abstract
the heat from the heated air in passing through it, I prefer to make
the said.diaphragm of metal or other good conductor of heat. The size
of the tubes b, b, together with the extent of surface over which the
heat is distributed, and the large volume of air with which the products
of combustion are mixed, occasions a rapid but moderate heating of
the room in which the stove is situated; and as no portion of the stove
is heated sufficiently to decompose any organic matter in the air, the
unpleasant odour usually observed in the air of rooms heated by stoves
is avoided. The lime in the chamber d, absorbs more or less effectually
the carbonic acid produced during the combustion of the gas, and pre-
serves the air in the room in a more fit state for respiration than when
the said lime is not introduced into the said chamber. The tubes b, b,
may be made either of metal, glass, earthenware, or other vitreous or
semi-vitreous substance, or partly of metal and partly of glass, earthen-
ware, &c. By forming the said tubes of colourless or coloured glass,
either transparent or semi-transparent, within tubes of perforated metal,

page_text: the illuminating as well as the heating effect of the gas flames is
obtained, and an ornamental appearance produced.
Having now described the nature of my said Invention, and the
manner in which the same is to be carried into effect, I wish it to be
understood that I do not limit myself to the precise method of carrying
my Invention into effect herein described, and represented in the accom-
panying drawing, as the same may be varied without departing from the
nature of my said Invention; for example, the number of the tubes and
burners may be greater or less, according to the desired heating power of
the stove; and the top g, of the chamber d, may be made flat or of any
other figure, for the purpose of adapting my Invention to the various pur-
poses of cooking, heating irons for laundresses, heating brass and other
articles for lacquering; and the form of the perforated plate or diaphragm
k, may be varied for the purpose of adapting my Invention to effect the
heating of bodies placed in the interior of the said chamber. But I
claim as my Invention,
Firstly, constructing gas stoves having two or more tubes underneath,
or in each of which a gas flame or flames is situated, the said tubes
opening at their bottoms to the atmosphere, and at the tops into a com-
mon chamber.
Secondly, the use of a perforated diaphragm in the chamber of gas
stoves, for the purpose of abstracting the heat from the heated air and
products of combustion passing through the said chamber.
In witness whereof, I, the said James Kimberley, have hereunto set
my hand and seal, this Second day of September, in the year
of our Lord One thousand eight hundred and fifty-three.
JAMES KIMBERLEY. (L.S.)
Witness, GEORGE SHAW.