IMPROVED APPARATUS FOR THE MORE PERFECT COMBUSTION OF FUEL AND FOR CONSUMPTION OF SMOKE
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said William Beazley at the
Office of the Commissioners of Patents on the 8th May 1882.
WILLIAM BEASLEY of Birmingham in the County of Warwick
IMPROVED
APPARATUS FOR THE MORE PERFECT COMBUSTION OF FUEL AND FOR
CONSUMPTION OF SMOKE
THE
My invention has particular reference to an improved apparatus for the more
perfect combustion of fuel and for the consumption of smoke which enables me to
effect a considerable economy in the consumption of fuel.
I will explain my invention as applied to a Cornish or single flue boiler:-
Underneath the dead plate and fire grate I fit a trough which passes longi-
tudinally along towards the bridge but it does not extend to the bridge but is
open at the bridge end. This trough may be the full width of the grate or less as
may be desired and as may be most convenient for each particular case but when
it is the full width of the grate no sides are required as a single plate fitting against
the sides of the flue form the trough or chamber.
Upon the front of the fire door I fix a box which projects downwards sufficiently
to close the front end of the said trough or chamber and to form a suitable
communication with it. The body of the fire door itself is perforated or has a large
hole in its body covered with wire gauze.
The dead plate over the chamber is also perforated with small holes.
The apparatus works in the following manner. Air enters directly under the
chamber or trough and passes on towards the bridge where it enters the bridge end
of the said trough. travelling back towards the door box before mentioned through
which it passes in a highly heated state over the front of the fire mixing with the
smoke and unconsumed gasses which are by this means easily ignited and burnt.
Part of the Air may pass quite vertically through the dead plate and then over the
front of the fire. It also acts as a safeguard to the fireman because where there
is a back draught it is carried underneath through the trough to the back end of
the grate,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Beazley in the Great Seal Patent Office on the 7th November
1882.
WILLIAM BEASLEY of Birmingham in the County of Warwick
APPARATUS FOR THE
CONSUMPTION OF SMOKE
MORE
د,
PERFECT
COMBUSTION
OF FUEL
" IMPROVED
AND
FOR
THE
My invention has particular reference to an improved apparatus for the more
perfect combustion of fuel and for the consumption of smoke which enables me to
effect a considerable economy in the consumption of fuel.
I will explain ny invention as applied to a Cornish or single flue boiler :-
Underneath the dead plate and fire grate I fit a trough which passes longi-
tudinally along towards the bridge but it does not extend to the bridge but is
open at the bridge end. This trough may be the full width of the grate or less as
may be desired and as may be most convenient for each particular case but when
it is the full width of the grate no sides are required as a simple plate fitting against
the sides of the flue form the trough or chamber. Upon the front of the fire door
I fix a box which projects downwards sufficiently to close the front end of the
said trough or chamber and to form a suitable communication with it.
The body
of the fire door itself is perforated or has a large hole in its body covered with wire
gauze. The dead plate over the chamber is also perforated with small holes.
The apparatus works in the following manner:- -Air enters directly under the
chamber or trough and passes on towards the bridge where it enters the bridge end
of said trough travelling back towards the door box before mentioned through
which it passes in a highly heated state over the front of the fire mixing with the
smoke and unconsumed gasses which are by this means easily ignited and burnt.
Part of the air may pass quite vertically through the dead plate and then over the
front of the fire. It also acts as a safeguard to the firemen because where there is
a back draught it is carried underneath through the trough to the back end of
the grate
In order that my invention may be more clearly understood and carried into
effect with greater facility I have appended hereunto drawings which show two
modifications of the application of my invention to fire grates.
Figure 1 is a front elevation of a double flue boiler with my invention applied in
one way to the left hand flue A and in another way to the right hand flue B.
Figure 2 is a part longitudinal section through the left hand or A flue.
Now underneath the dead plate C, C. and tire grate D, D 1 fit the trough E, E
which forms a channel or trough e, el, e² which passes longitudinally along to e³
leaving the gap between es and the bridge which may vary in length according to
circumstances. Upon the front of the fire door FI fix a box or cover H which
projects downwards to h' and continues under to h² to make a junction with the
edge of the front end trough E thus forming an internal communication with it.
The right hand fire door in Figure 1 is shown with the box H removed thus
showing the wire gauze or perforated front or there may be one large hole or a few
large holes instead of the gauze but I prefer to use the gauze because the air is
divided into a greater of small jets. The dead plate C is also perforated with
holes k, k. Now the cold air entering the boiler flue at A passes along in the
direction of the arrow 1 in Figure 2 turning round at the bridge end as shown by
arrow 2 into the trough or channel and so returning towards the front of the grate
during which time it receives considerable heat from the under part of the grate
which is by this kept cool and clinkering is prevented and grate bars last longer.

page_text: Some portion of the air then turns up through the dead plate as indicated by
arrow 3 and the remainder follows the direction of arrow 4 thus passing in a more
or less heated state through the door and over the fire where it mixes with the
smoke and unconsumed gases when combustion is immediately produced with the
result that there is generally a remarkable absence of smoke.
The other modification is illustrated in the B flue Figure 1 where the plate M, M
is carried completely across the flue and is supported upon the angle pieces n, n¹
which is probably the most simple mode. The ends r, would be required for the
purpose of turning the air into the box.
1
may when required use a fan or fans to increase the draught.
Having now described and particularly ascertained the nature of the said
invention and the manner in which the same is or may be carried into effect
I would have it understood that I do not confine myself to the exact details herein
set forth but what I do claim is:-
The improved apparatus herein setforth whereby the air is brought back to the
front of the grate from the bridge in the and for the purpose explained.
In witness whereof I the said William Beasley have hereunto set my hand
and seal this fourth day of November in the year of our Lord One thousand
eight hundred and eighty two.
WILLIAM BEASLEY (L.S.)