Improvements in or Connected with Gas or Oil Stoves for Heating or Cooking Purposes.
Year: 1889

page_text: Date of Application, 28th Jan., 1889
Complete Specification Left, 10th Oct., 1889-Accepted, 23rd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in or Connected with Gas or Oil Stoves for Heating
or Cooking Purposes.
I, MATTHEW HENRY TILLEY, of 46, South Street, Dorchester, Dorsetshire, Jeweller,
do hereby declare the nature of this invention to be as follows:-
This invention consists of the improved means herein described for consuming the
noxious fumes which arise from burning gas or oil as in gas or oil stoves, and for
increasing the amount of heat given off.
In applying my invention to a gas or oil stove I provide an open topped chamber
near to or forming part of the stove. This chamber contains burnt chalk or lime in
nodules of suitable sizes. The flue from the gas or oil stove enters this chamber at or
near the bottom thereof (which latter is by preference a grating) so that the fumes
and heat from the burning gas or oil pass up through the burnt chalk or lime which
absorbs all smell and by becoming heated considerably increases the efficiency of the
stove.
The said open topped chamber containing the burnt chalk or lime nodules may
itself constitute the stove by arranging an atmospheric gas burner or burners or an
oil burner or burners underneath or adjacent to the chamber so that the fumes there-
from will pass up through the burnt chalk or lime and be purified as above
described.
Dotad thia 25th day of January 1889
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or Connected with Gas or Oil Stoves for Heating
or Cooking Purposes.
I, MATTHEW HENRY TILLEY, of 46, South Street, Dorchester, Dorsetshire, Jeweller,
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:-
This invention consists of the improved means herein described for consuming the
noxious fumes which arise from burning gas or oil as in gas or oil stoves, and for
increasing the amount of heat given off.
In applying my invention to a gas or oil stove I provide an open topped chamber
near to or forming part of the stove. This chamber contains burnt chalk or line in
nodules of suitable sizes. The flue from the gas or oil stove enters this chamber at or
near the bottom thereof (which latter is by preference a grating) so that the fumes
and heat from the burning gas or oil pass up through the burnt chalk or lime which
absorbs all smell and by becoming heated considerably increases the efficiency of the
stove.
The said open topped chamber containing the burnt chalk or lime nodules may
itself constitute the stove by arranging an atmospheric gas burner or burners or an
oil burner or burners underneath or adjacent to the chamber so that the fumes there-
from will pass up through the burnt chalk or lime and be purified as above
described.
On the accompanying drawing Fig. 1 illustrates in sectional elevation a gas stove
constructed according to this invention and Fig. 2 is a front elevation of the same
partly in section.
a is the body of the stove forming the open topped chamber which is preferably

page_text: made of pottery-ware or it may be made of iron or other suitable substance and in this
example is of cylindrical form provided near the bottom with the metal or other
grating 6 on which the nodules of burnt chalk or lime c rest. d is a metal base upon
which the stove body a rests and e is an ordinary portable atmospheric gas burner
which can be introduced under the grating through the opening at the front
of the stove. When the gas burner e is lighted the fumes and heat therefrom
pass up between the nodules of burnt chalk or lime c and all smell is absorbed
thereby and as the chalk or lime becomes heated the efficiency of the stove is
considerably increased.
In the particular stove illustrated by the drawing the lower part a¹ of the stove
body a is made rather smaller than the size of its open top so that two or more of
these stove bodies can be placed one on the top of the other as shewn by the dotted
lines in Fig. 1 and filled with the chalk or lime nodules so as to increase the size of
the stove as may he required.
When the stove is not in use I find it desirable to remove the gas burner e and to
cover the opening by a small door and also to close the open top of the stove which
can be done by a loose cover such as g so as to prevent the chalk or lime nodules
absorbing moisture from the atmosphere. I find it advisable to use a gas burner which
has the holes at the side rather than at the top so that they will not get choked by
dust falling from the chalk or limo nodules.
I find hard chalk most suitable for my purpose such as is obtained in the
neighbourhood of Dorchester and in preparing it for use it has to be burnt at a red
heat for about two hours when it will be found not to crumble by exposure to
the air.
By experiment I find that in a stove consuming say sixty feet of gas per day of
twelve hours and containing a bushel of the burnt chalk nodules, the chalk requires
to be changed and renewed at the expiration of about eighty days. From these data
it will be easy to calculate the amount of burnt chalk required for stoves consuming
any different quantity of gas per hour.
By increasing the space between the underside of the grating band the top of the
stove base d, the stove illustrated on the drawing will be adapted for use as an
oil stove a smokeless paraffin or other oil lamp being introduced underneath the
grating instead of the gas burner e. In order to prevent dust from the lime
falling on to the flame of the lamp I find it advisable to use a small disc or plate
suitably supported above the flame of the lamp.
The open topped chamber containing the chalk nodules may if preferred be entirely
distinct from the stove itself so as to be more readily applicable to existing gas stoves
and it may be of any suitable form provided with an opening below the grating by
which the fumes from the stove enter the chamber and pass up between the chalk
nodules.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The employment with a gas or oil heating stove, of burnt chalk or lime nodules
-in the manner substantially as set forth for the purpose of consuming the noxious
fumes from the gas or oil burner or burners and for increasing the efficiency of the
stove as hereinbefore set forth.
2. The combination with an oil or gas heating or cooking stove, of an open topped
chamber containing nodules of burnt chalk or lime, as set forth, the said chamber
..being fixed adjacent to the said stove so that the fumes from the gas or oil burner or
burners of the stove will pass between the said burnt chalk or lime nodules for the
purposes and substantially as hereinbefore set forth.
3. In an oil or gas stove, the employment of nodules of burnt chalk or lime so
arranged that the heat and fumes from the gas or oil burner or burners of the stove
will pass between the said nodules for the purposes and substantially as hereinbefore
set forth.

page_text: 4. In combination, the open topped stove body a the burnt chalk or lime nodules c
contained in the stove body and supported by the grating , the stove based, and a
gas burner or oil lamp below the grating the whole forming an improved stove as
herein before described and illustrated by the accompanying drawing.
Datar this Oth day of October 1880
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.