IMPROVEMENTS IN STOVE GRATES OR FIRE PLACES
Year: 1884

page_text: I FREDERICK BROWN of Stuart Street, Luton, Bedfordshire, Ironfounder, do
hereby declare the nature of my invention for IMPROVEMENTS IN STOVE GRATES
OR FIRE PLACES to be as follows:-
A projecting fire-brick overhangs the back of the fire.
The bottom of the fire is fire-brick or an iron plate extending to within a short
distance of the back of the stove, a little below this bottom (leaving a space
between) there is also a plate which extends fully to the back of the stove and
fits close up against it, a grating forms the back of the fire with a space between
it and the back of the stove, a channel is thus formed under the fire and the air
which is admitted into this channel from the front becomes highly heated as it
passes through and in this state is discharged through the grating at the back into, .
upon, and over the top of the fire by which means more perfect combustion is
obtained and the bulk of the smoke consumed.
There is an iron plate in front of the ashes pit which controls at pleasure the
admission of air through the channel, which when closed, converts it into a slow
combustion fire.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical transverse section of a stove grate or fire place constructed
in accordance with my invention. Figure 2 is a front elevation of a plate by
which the ash pit is closed. Figure 3 is an end elevation of the part shewn by
Figure 2. Figure 4 is an end elevation of a moveable ash pan which may be
employed in place of the parts shewn by Figures 2 and 3.
In this stove grate or fire place a projecting fire brick A overhangs the back part
of the fire. The bottom of the fire basket is formed of fire brick B, or it may be
a plate of iron either solid or in the form of a grating extending to within a short
distance of the back of the stove. A little below this bottom (leaving a space
between) there is also a plate C which extends fully to the back of the stove and
fits close up against it. A grating D or a slotted or perforated metal or brick back
forms the back of the fire with a space I behind between it and the back of the
stove. A. channel E is thus formed under the fire, and the air which is admitted
into this channel from the front becomes highly heated in its passage through and
in this state is free to pass through the grating or other openings at the back into
upon and over the top of the fire by which means more perfect combustion is
obtained and the bulk of the smoke consumed. There is an iron plate F in front
of the ash pit; when pushed inwards it abuts against the outer end of the plate C
but when drawn out as it is seen in Figure 1 it allows air after entering the ash
pit from the front to ascend between the plate F; and the edge of the plate C
along the space E. Thus the plate F which is drawn forward or pushed in controls
at pleasure the admission of air, through the channel, and when pushed in converts
the arrangement into a slow combustion grate or fire place. Instead of the iron
plate C between the bottom of the fire and also the iron plate F in front of the
ash pit, a close fitting raised ash pan G with a sliding ventilator in front may be
substituted. The bottom of this ash pan as will be seen forms a substitute for the
plate C in Figure 1.
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
1. A stove grate or fire place having a fire basket with an open back and an air
chamber behind the said back and with a channel immediately beneath the bottom

page_text: of the fire basket and a regulator by which air can be admitted at pleasure into
the passage and air chamber thence to pass into upon and over the fire substantially
as described.
2. The combination of parts constituting my improved stove grate or fire place
substantially as herein shewn and described,