IMPROVEMENTS IN FURNACES OF STEAM AND OTHER BOILERS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I ROBERT WILSON of 49 Kellett Road, Brixton in the County of Surrey
Manufacturers' Agent do hereby declare the nature of my said invention for
"IMPROVEMENTS IN FURNACES OF STEAM AND OTHER BOILERS" to be as follows:-
The object of this my invention is, by the application of the improved apparatus,
to prevent or diminish, the volume of smoke issuing from the shafts of steam
boiler, and other furnaces, by more effectually consuming the products of combustion,
and thus economising fuel.
Apparatus for purpose aforesaid, constructed according to this my said invention,
consists, of a curved or inclined pipe, or conduit, for passage of air, from the
underside of the grate bars, and dead plate, and for diverting, and turning the
intake current, in the direction of, or to the back of the door of the furnace,
whereby a considerable portion of the smoke and gases, given off during the partial
distillation of the fuel, at the front part of the furnace or grate bars, are caused to
circulate, first in direction of the indraft and furnace door, then curving upwards,
and returning over the fire, by way of the crown of the flue or furnace, are, during
such passage, caught and burnt, by the greater heat of the remaining portion ▸
of the fire-The object being to prevent, so far as may be, the direct passage
of smoke and gases to the bridge and flue, or outlet, as circulation ensures
combustion.
The apparatus may consist of one main rectangular oblong intake, and one
conduit, or there may be two or more such intakes, and conduits, employed at
spaced distances, across the entrance to the furnace, damper or dampers, being
employed for regulating intake as necessary.

page_text: the following statement :-
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•
The object of this my invention is by the application of the improved apparatus
to prevent or diminish the volume of smoke issuing from the shafts of steam boilers
and other furnaces by more effectually consuming the products, of combustion and
thus economising fuel.
Such being the nature and object of my said invention the following is a
complete description of same, reference being had to the accompanying drawings
forming a part of this specification in which :-
Fig. 1 is a longitudinal section of my improved apparatus.
Fig. 2 is a front view reduced scale.
Fig. 3 a plan.
Apparatus for purpose aforesaid constructed according to this my said invention
consists of a curved or inclined pipe or conduit plate 1 for passage of air from the
underside 2 of the grate bars 3 and'dead plate 4 and for diverting and turning the
intake current in the direction of, or to the back of the door of the furnace 5
whereby as shewn by arrows 6 a considerable portion of the smoke and gases
given off during the partial distillation of the fuel at the front part of the furnace
or grate bars are caused to circulate first in direction of the indraft and furnace
door 7 then curving upwards and returning over the fire by way of the crown of
the flue or furnace are during such passage caught and burnt by the greater heat
of the remaining portion of the fire-The object being to prevent so far as may be
the direct passage of smoke and gases to the bridge and flue or outlet as circulation
ensures combustion.
. At 8 are studs or pins on which the door 9 rests during the removal of clinker
or when from any cause it may be desirable to close the aperture, and 10. 11 are
grooves in which a sliding door or damper may be received and set, so as to regulato
the intake of air,
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
--
The improved apparatus herein described for purpose and as illustrated by
the drawings annexed.