Improvements in Apparatus for Consuming Smoke and Saving Fuel
Year: 1891

page_text: Date of Application, 3rd Sept., 1891
Complete Specification Left, 31st May, 1892-Accepted, 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Consuming Smoke and Saving
Fuel.
I JOHN CORNFORTH Alpha Foundry Berner Street Lozells Birmingham do
hereby declare the nature of this invention to be as follows :-
This invention consists of an air regulating hollow fire bar and in the carrying
out of same. I divide the air passage through the hollow bar thus forming
two distinct passages so that instead of taking the air in at the end of bar it
is taken from both sides that is on the right and left side but near the end
of bar.
Dated this 1st day of September 1891.
JOHN
CORNFORTH,
Alpha Foundry, Berner Street, Lozells, Birmingham.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Consuming Smoke and Saving
Fuel.
I JOHN CORNFORTH Alpha Foundry Berner Street Birmingham Iron Founder
and Smoke Consuming Apparatus Manufacturer do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
My invention consists of a hollow fire bar containing two separate and distinct
air passages for the purpose of heating the air to a high degree of temperature
before entering the bridge at the far end of the bar from the door the bridge is
hollow with opening at the top by which the heated air mingles with the smoke
and gases given off by the burning fuel on the fire bars, in making the two distinct
air passages I first make a deep groove in the blade of the bar the full length of
the bar the blade of the bar being sufficiently thick to allow two separate air
passages, by dividing the same with a length of wrought tee iron, at the bottom or
blade of the bar I cast in a number of bolts to receive nuts for the purpose of
screwing the tee iron to the bar, and so prevent any air entering only by the
opening in the side near the end of the bar, I drill or punch holes in the tee iron to
receive the bolts as stated, to give more air if required I unscrew the nut and open
the aperture by lowering the tee iron and by so doing allow a greater volume of
air to pass through the bar to consume all smoke according to the quality of fuel
used, I make the bar in one length from door to bridge or shorter lengths, so that
I can connect a short bar to the ordinary bar, and produce the same results, the
same rest or bearer now in use under boilers and other furnaces will do for my bar
as I require no other.
I also make the separate air passages in the bar by casting inside the bar two
small wrought iron tubes instead of the tee iron as shown in drawing section C the
air is taken in at the side of the bar in both cases, each side the bar having an open
space or opening cast in the bar to receive the air independently of each other in
casting the bar I place the two tubes one on the other in the mould and pour the
melted metal into the mould and so consolidate them, at the same time leaving
both ends of the tubes open for a free passage of air at the entrance and the far
end of the bar into the bridge, I prefer using my old patent bridge No. 2415 but
I do not claim it in this invention the groove in the blade of the bar I make by
cutting the inside out of the blade of the bar the depth required leaving the two
Price &d1

page_text: outsides of the blade to form a double bladed bar with the groove up the middle,
the air is taken in at the side near the end as shown by elevation A No. 1
elevation B shows tee iron, section No. 2 and 3 shows end of tee iron, section E
shows groove in the blade of the bar, Section H shows groove with tee iron
screwed to the blades of the bar, the horizontal part of the tee iron forms the
bottom of the bar, to prevent any air entering only through the opening near the
end of the bar by the door as shown by elevation A No. 1.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
A hollow fire bar with two distinct and separate air passages or channels either
with tubes cast inside the bar or a length of T tee iron screwed to the bottom of
the bar so dividing the air passage into two channels.
JOHN
CORNFORTH,
Alpha Foundry, Berner Street, Birmingham.