Improvements in or relating to the Combustion of Fuel in Stoves or Firegrates.
Year: 1896

page_text: Date of Application, 17th Apr., 1896.
Complete Specification Left, 8th Aug., 1896-Accepted, 19th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Combustion of Fuel in Stoves
or Firegrates.
I, WILLIAM TYREE, of 7 Westbourne Square, in the County of London, Gentleman,
do hereby declare the nature of this invention to be as follows:-
This invention relates to means for improving combustion in stoves or grates
and consists of a hollow perforated box or body adapted to be placed in a fire place
amongst the fuel and to thoroughly heat and distribute the air necessary for effecting
proper combustion.
The hollow box may be of triangular, dome-shaped or other form and has its
upper or end walls or both perforated so as to allow the heated air to pass out of
the body into the fire. The bottom of the box is formed with a comparatively
large opening through which air is admitted to its interior, and this opening is
fitted with a suitable slide, valve or damper whereby the quantity of air allowed to
pass through may be regulated. Ribs or feet may be provided on the bottom of the
box to allow for the clearance necessary above the fire grate to enable the valve to be
operated.
At the front of the box a trough or receptacle may be provided for receiving
petroleum or the like when a fire is to be kindled whereby the necessity for using
paper, wood and the like is dispensed with.
By the foregoing device the air is very highly heated before it enters the fire, as
the glowing fuel almost entirely surrounds, the box, and as the air has to pass
through the before-mentioned perforations before it reaches the fire it is well
distributed, and delivered on to a comparatively large glowing surface whereby the
combustion is greatly enhanced.
The before described device if desired may be permanently attached to or form
part of the fire grate.
Dated this 17th day of April 1896.
BOULT & WADE,
Agents for the Applicant:
COMPLETE SPECIFICATION.
Improvements in or relating to the Combustion of Fuel in Stoves
or Firegrates.
I, WILLIAM TYREE, of 7 Westbourne Square, in the County of London, Gentleman,
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 relates to means for improving combustion in stoves or grates and
consists of a hollow perforated box or body adapted to be placed in a fire-place
amongst the fuel and to thoroughly heat and distribute the air necessary for effecting
proper combustion.
The hollow box may be of triangular, dome-shaped or other form and has its
upper or end walls or both perforated so as to allow the heated air to pass out of

page_text: .
the body into the fire. The bottom of the box is formed with a comparatively large
opening through which air is admitted to its interior and this opening is fitted with
a suitable slide, valve, or damper, whereby the quantity of air allowed to pass through
may be regulated. Ribs or feet may be provided on the bottom of the box to allow
for the clearance necessary above the fire-grate to enable the valve to be operated.
At the front of the box a trough or receptacle may be provided for receiving
petroleum or the like when a fire is kindled whereby the necessity for using paper,
wood and the like is dispensed with.
In the accompanying drawings-
Figure 1 is a perspective view of one construction of box or body and its
appurtenances according to this invention, tilted up to show its underside;
Figure 2 is a similar view of an alternative construction of the same as seen from
above.
With reference first to Figure 1, A is the body of the box, which in shape is a
triangular prism with flat ends. A' are perforations in the walls of the box;
A are slots in its underside. B. is a valve arranged to slide freely in guides C,
the latter being attached to the bottom of the box. B' is a handle fixed to the
valve B so as to project out from the front of the fire-place or grate for which the
device is intended; by means of the handle B₁ the valve C can be moved to
regulate to the desired extent the amount by which the slots A2 are opened for the
admission of air through them to be heated in the interior of the box and to issue
at the perforations A'. D is a stop to limit the motion of the valve B.
The modification illustrated in Figure 2 is substantially the same as the device
shown in Figure 1 except for the trough D provided upon one side of the body A
to receive petroleum or other inflammable material for the purpose herein before stated.
Ribs or feet E are indicated in dotted lines in Figures 1 and 2 at the bottom of the
box to afford the clearance herein before referred to, but if desired these ribs or feet
may be dispensed with. Devices of the kind described may be made wholly or partly
of metal or of fire-clay or other refractory meterial; they are intended to be placed
on, for example, the grate-bars of an ordinary grate, in the centre of a mass of fuel,
the fuel being piled around and over them, and the valve handle projecting out of
the fire to some position in which it is conveniently accessible. By their use the air
is very highly heated before it enters the fire for the glowing fuel almost entirely
surrounds the box, and as the air has to pass through the perforations A¹ before it
reaches the fire, it is well distributed and delivered on to a comparatively large
glowing surface whereby combustion is greatly intensified.
If desired devices such as are herein before described may be permanently attached
to or form part of a fire-grate.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A device or apparatus to be placed in the centre of a mass of fuel substantially
as and for the purpose specified.
2. The combination of a hollow perforated box or body and a valve or damper,
with or without ribs or feet, for the purpose described.
3. The combination of a hollow perforated box or body, a valve or damper, and a
trough, with or without ribs or feet, for the purpose specified.
4. The device for improving combustion in stoves grates or the like substantially as
described and illustrated in Figure 1 or in Figure 2 of the accompanying drawings.
Dated this 5th day of August 1896.
WILLIAM TYREE.
Boult & Wade,
Agents for the Applicant.