An Improved Gas or Oil Stove.
Year: 1891

page_text: Date of Application, 19th Jan., 1991
Complete Specification Left, 15th Aug., 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
An Improved Gas or Oil Stove.
JOHN PRESTWICH Cotton Spinner & Manufacturer Farnworth near Bolton
Lancashire WILLIAM HENRY PRESTWICH Photographer, Warmington House,
Tottenham N. do hereby declare the nature of this invention to be as follows:-
The purpose sought to be obtained in this improved stove is to prevent & thus
economize the great waste of heat which takes place in ordinary gas and oil
stoves.
This is accomplished by passing the heated air & products of combustion (which
are usually allowed to at once escape into the flue or chimney) into a radiating
chamber. This chamber is divided by a partition or diaphragm having suitable
openings & perforations which while permitting the deleterious products to pass
through the outlet provided at the back of radiating chamber greatly reduces the
temperature & so economizes the heat.
Doted this 10th day of January 1891
JOHN PRESTWICH.
WILLIAM HENRY PRESTWICH.
COMPLETE SPECIFICATION.
An Improved Gas or Oil Stove.
We, JOHN PRESTWICH, of Farnworth, near Bolton, in the County of Lancashire,
Cotton Spinner and Manufacturer, and WILLIAM HENRY PRESTWICH, of
Warmington House, Tottenham, in the County of Middlesex, Photographer, 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:-
Our invention relates to an improved gas or oil stove.
The purpose sought to be obtained in this invention is to prevent and thus
economize the great waste of heat which takes place in ordinary gas stoves. This
is accomplished by passing the heated air and products of combustion (which are
usually allowed to at once escape into the flue or chimney) into a radiating
chamber. This chamber is divided by a partition or diaphragm having suitable
openings and perforations which while permitting the deleterious products to pass
through the outlet provided at the back of radiating chamber greatly reduces the
temperature and so economizes the heat.
We attain these objects by the mechanism illustrated in the accompanying
vertical section fixed to the back of a stove which is in elevation, reference being
had to letters marked thereon.
To any ordinary gas or oil stove we attach our invention with shapes of the
various parts modified to suit any such stove.
Our invention is constructed with a metallic tube c connected to a socket b at or
near the top of the stove a, to this said tube c is fixed a radiating chamber d, f.
The radiating chamber is divided by a perforated partition or diaphragm e the
perforations being marked g. At the top of the radiating chamber we fix a con-
necting piece in order to connect the stove to a flue or chimney.
It will be seen by the indication of arrows on the drawing that the heated air
and products of combustion travel through the tube c and descends into the
radiating chamber d through the perforations in the diaphragm e and ascends.
at f and exhaust itself by way of the opening into a flue or chimney.

page_text: It will be understood that the foregoing is given by way of illustration, and that
the shapes, perforations, tubes, radiating chambers, and the various parts may be
varied in many ways within the scope of our invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a gas or oil stove, the combination of a tube c radiating chambers d f, and
the diaphragm e and perforations g with connection h, substantially as herein
described and according to the accompanying drawing.
2. The combination of the radiating chamber with the perforated diaphragm,
tube and connections, to be constructed of any suitable shape so as to be applicable
to any existing gas or oil stove, substantially as herein described and for the
purpose set forth.
Dated this 15th day of Anonat 1801
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicants.