IMPROVED MEANS OF CONSUMING SMOKE IN STEAM BOILER FURNACES
Year: 1886

page_text: I JOHN EPHRAIM BROWN of Brittania Road Slaithwaite in the County of York
Chemist and Druggist do hereby declare the nature of my invention for IMPROVED
MEANS OF CONSUMING SMOKE IN STEAM BOILER FURNACES and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of this invention is to reduce the quantity of smoke given off by
Boiler Furnaces from any cause arising, and by its action and the spaces it occupies on
the fire-bars to lessen the consumption of fuel. This result is obtained by the use
of a bridge specially constructed so as to bring a current of heated air of sufficient
volume into intimate contact with the products of combustion before they pass
over the crown of the furnace bridge. At this point the initial temperature is
still maintained and consequently the additional supply of oxygen contained in the
air is instrumental in accomplishing the combustion of the carbon passing off in
the form of smoke. Reference is to be had to the accompanying drawings forming
part of this specification, wherein. Figure 2. is a longitudinal section of a boiler
furnace provided with my improved bridge. Figure 3. is, a cross section, and
Figures 1 and 4 are detail sectional views of the bridge separately. The same
letters of reference indicate the same parts in all.the.figures.
The bridge which is much simpler in its construction and fixing than those of
the usual type, is constructed of one chamber F. extending its whole width, and is
fixed by resting.simply on the fire-bars, the front portion of the bridge Figure 3.
facing the furnace is perforated with holes G, the bottom part that rests upon
the bars opens by means of the instertices of the bars upon the ash-pit; the air
passes along the ash-pit, and through the bars into the heated chamber, and
emerging at G through the perforations Figure 2 mingles with the main volume
of smoke, and effects its complete combustion. On the inner side of the frout
face of the bridge, that is behind the perforations, is fixed wire netting, which
prevents cinders or ashes finding their way into the chamber, and obstructing the
air current.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed I declare what
I claim is
A furnace bridge constructed of one chamber only having a perforated front
facing the furnace, the open bottom of the bridge resting simply on the fire bara,
substantially as herein described and shown in the drawings.

page_text: Improved Means of Consuming Smoke in Steam Boiler Furnaces.
I JOHN EPHRAIM BROWN of Brittania Road Slaithwaite in the County of York
Chemist and Druggist do hereby declare the nature of my invention for IMPROVED
MEANS OF CONSUMING SMOKE IN STEAM BOILER FURNACES and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of this invention is to reduce the quantity of smoke given off by
Boiler Furnaces from any cause arising, and by its action and the spaces it occupies on
the fire-bars to lessen the consumption of fuel. This result is obtained by the use
of a bridge specially constructed so as to bring a current of heated air of sufficient
volume into intimate contact with the products of combustion before they pass
over the crown of the furnace bridge. At this point the initial temperature is
still maintained and consequently the additional supply of oxygen contained in the
air is instrumental in accomplishing the combustion of the carbon passing off in
the form of smoke. Reference is to be had to the accompanying drawings forming
part of this specification, wherein Figure 2. is a longitudinal section of a boiler
furnace provided with my improved bridge. Figure 3. is a cross section, and
Figures 1 and 4 are detail sectional views of the bridge separately. The same
letters of reference indicate the same parts in all the figures.
The bridge which is much simpler in its construction and fixing than those of
the usual type, is constructed of one chamber F. extending its whole width, and is
fixed by resting simply on the fire-bars, the front portion of the bridge Figure 3.
facing the furnace is perforated with holes G, the bottom part that rests upon
the bars opens by means of the instertices of the bars upon the ash-pit; the air
passes along the ash-pit, and through the bars into the heated chamber, and
emerging at G through the perforations Figure 2 mingles with the main volume
of smoke, and effects its complete combustion. On the inner side of the front
face of the bridge, that is behind the perforations, is fixed wire netting, which
prevents cinders or ashes finding their way into the chamber, and obstructing the
air current.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed I declare what
I claim is
A furnace bridge constructed of one chamber only having a perforated front
facing the furnace, the open bottom of the bridge resting simply on the fire bars,
substantially as herein described and shown in the drawings.