Improvements in or relating to Smoke Consuming Fireplaces, Stoves and Furnaces.
Year: 1899

page_text: Date of Application, 19th Dec., 1899
Complete Specification Left, 14th Sept., 1900-Accepted, 15th Dec., 1900
PROVISIONAL SPECIFICATION.
Improvements in or relating to Smoke Consuming Fireplaces, Stoves
and Furnaces.
A communication from GUSTAV ADOLPH MAHLER and MAX FRIEBE, both of
Dresden, Saxony, Empire of Germany, Stove-setters.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
The present invention relates to fireplaces or stoves for use in rooms and
kitchens as well as in furnaces intended for technical purposes, such as for heat-
ing steam boilers and the like, by means of which the fuel is consumed without
producing smoke or soot, by subjecting the fuel, introduced on the grate in
large quantities, in the first place to a process of distillation. The products of
such distillation collect in a chamber above the grate and are drawn through the
grate by means of the draught produced by the chimney, the process of oxidation
being completed below the grate while atmospheric air is admitted in suitable
quantities immediately above and below the grate surface.
A suitably large closed chamber is provided over the grate; air only entering
in small quantities through a small opening or openings provided in the fire door
and is immediately drawn through the grate. A further supply of air is admitted
through lateral air passages arranged immediately above and below the grate.
The flames formed on the under side of the bars are drawn round the depend-
ing back wall of the chamber and the gases ascend thence through a flue and pass
away in the usual manner.
To protect the grate bars against being burnt through, especially in the case
of furnaces, for technical purposes, the grate bars may be made hollow in the
usual manner, and communicate with the outer air for the purpose of cooling.
Stoves or fireplaces constructed in this manner completely burn up the fuel,
which means important economy with regard to the latter. Explosions cannot
take place and in the case of Dutch tile stoves collapse is avoided. Stoves con-
structed in this manner need not be built of heavy material, about forty bricks
being sufficient where formerly 120 were necessary.
The stove is sooner warm
on account of its lighter build, the time for getting warm being reduced to about
one-half.
In the case of smaller stoves the lateral air passages serve at the same time for
cooling the grate-bars. The lateral air admission orifices need not be arranged
on both sides, in many cases the arrangement on one side only will be sufficient.
Dated this 18th day of December 1899.
BOULT, WADE & KILBURN,
Agents for the Applicant.

page_text: Improvements in or relating to Smoke Consuming Fireplaces, Stoves
and Furnaces.
A communication from GUSTAV ADOLPH MAHLER and MAX FRIEBE, both of
Dresden, Saxony, Empire of Germany, Stove-setters.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of London,
Chartered Patent Agents, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
The present invention relates to fireplaces or stoves for use in rooms and
kitchens as well as in furnaces intended for technical purposes, such as for heat-
ing steam boilers and the like, by means of which the fuel is consumed without
producing smoke or soot, by subjecting the fuel, introduced on the grate in
large quantities, in the first place to a process of distillation. The products of
such distillation collect in a chamber above the grate and are drawn through the
grate by means of the draught produced by the chimney, the process of oxidation
being completed below the grate while atmospheric air is admitted in suitable
quantities immediately above and below the grate surface.
In the accompanying drawing:
Figures 1 and 3 are side views in section in different planes of a form of fire-
place according to this invention,
"
Figure 2 a longitudinal section on the line A-B of Figure 1.
Figure 4 a front view of the fireplace.
As illustrated in the drawings by way of example, a suitably large closed or
blind" chamber 6 is provided over the grate a; air only entering in small
quantities through a small opening or openings provided in the fire door c, and
is immediately drawn through the grate. A further supply of air is admitted
through the lateral air passages d, (Figure 2) arranged immediately above and
below the grate. The flames formed on the under side of the bars are drawn
round the depending back wall e of the chamber and the gases ascend thence
through a flue f and pass away in the usual manner.
To protect the grate bars against being burnt through, especially in the case
of furnaces for technical purposes, the grate bars may be made hollow in the
usual manner, and communicate with the outer air for the purpose of cooling,
(Figure 3).
Stoves or fireplaces constructed in this manner completely burn up the fuel,
which means important economy with regard to the latter. Explosions cannot
take place and in the case of Dutch tile stoves collapse is avoided. Stoves con-
structed in this manner need not be built of heavy material. The stove is sooner
warm on account of its lighter build, the time for getting warm being reduced
to about one-half.
In the case of smaller stoves the lateral air passages serve at the same time for
cooling the grate-bars. The lateral air admission orifices need not be arranged
on both sides, in many cases the arrangement on one side only will be sufficient.
Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondents and in what
manner the same is to be performed I declare that what I claim is:-
1. A smoke consuming fireplace or furnace comprising a closed or "blind"
chamber above the grate from which the evolved gases are drawn through the

page_text: grate, and air inlet passages arranged immediately above and below the level
of the grate surface, substantially as described.
2. The complete fireplace or furnace substantially as described or illustrated
in the accompanying drawings.
Dated this 14th day of September 1900.
BOULT, WADE & KILBURN,
Agents for the Applicant.