IMPROVEMENTS IN STEAM BOILER AND OTHER FURNACES
Year: 1885

page_text: I, JAMES FERGUSON the younger, of 40 Montgomery Street, Irvine, in the
County of Ayr, North Britain, Draper, do hereby declare the nature of the
invention for IMPROVEMENTS IN STEAM BOILER AND OTHER FURNACES and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This Invention, which relates to improvements in Steam Boiler and other
Furnaces, consists in so arranging a fuel Magazine below such Steam Boilers
and above their fire chambers as to cause the fuel to be fed gradually from the
said Magazines into the Furnace.-The said Invention further consists in so
directing and operating upon the products of combustion passing from the before
mentioned furnace, as to cause them, before escaping to the chimney, to be con-
sumed wholly, or to a very considerable extent as compared with that hitherto
attained.
In order that this said Invention may be properly understood and readily carried
into effect, I will now proceed to describe the Drawings hereunto annexed.
Figure 1, is a longitudinal section taken on the line A, B, Figure 2, of part of
a Steam Boiler, the Furnace of which is constructed according to this Invention.
Figure 2, is a transverse section of the same taken on the line C, D, Figure 1,
and looking towards the back end of the Boiler, and
Figure 3, is a transverse section of the same taken on the line C D, Figure 1,
and looking towards the front end of the Boiler.
Under the present Invention, the improved Furnace as applied to a Steam Boiler,
and as represented upon the accompanying Drawings, is built up between the two
side walls 1, and divided longitudinally by the fire brick partition 2.-The back
end of the Furnace is formed by the brick-work 3, through which the rectangular
openings 4, are formed above the level of the furnace bars 5.-Below the level of
the furnace bars 5, the holes 6, are formed through the said brick-work.-The fire
chamber is arched over at its top side as represented at 7, and above this arch the
partition or wall 8, is built up to the contour of the Boiler 9, and thereby forms
[Price Gd1

page_text: the chambers 10, and 11, which constitute the magazines in which the fuel, to be
afterwards fed to the Furnace, is stored.
The back walls 8, of the chambers 10, and 11, are formed with the openings 12,
through which the gases resulting from the partial coking of the fuel within these
chambers, are free to escape to the chamber 13, where, meeting with the flame
and other products of combustion issuing from the furnace through the openings 4,
and 14, they become ignited.-The magazines 10, and 11, are charged with fuel
through the doors 15, and the said fuel falls down through the shoots 16, into the
furnace below. The upper part of the shoots 16, is hopper shaped as shewn, to
facilitate the downward passage of the fuel, and the dimensions of the shoots 16,
are such as allow the fuel to fall at a rate corresponding or nearly corresponding
to the rate at which it is consumed in the furnace.-The ash-pit is closed in at its
front by the door 17, and the furnace is similarly closed in by the door 18, which
is provided with the openings 19, for the admission into the furnace of air, sufficient
to effect the most economical working.-The chamber 13, herein before referred to, is
formed by the partition wall 20, which is built up to the contour of the Boiler 9,
and which is provided with passages or openings 21.-In this chamber 13, the
gases coming from the fuel in the magazines 10, and 11, and the products of com-
bustion from the furnace are arrested in their passage to the flue, and become
more perfectly consumed therein.-If necessary for the purpose of assisting in this
more perfect combustion, a supply of heated air may be admitted to the chamber 13,
through a pipe passing from the front and through the furnace, or in any other
convenient manner.-The openings 22, which are shewn at Figure 1, of the accom-
panying Drawings, are provided for the purpose of facilitating the cleaning of the
chamber 13, and of that portion of the flue behind the wall 20.
The present Invention is represented upon the accompanying Drawings as
applied to the furnace, of a Boiler which is provided with an anti-priming arrange-
ment consisting of the pipe 23, through the perforations 24, of which the steam
passes. From the pipe 23, the steam then passes through the pipes 25, to the
horizontal pipe 26, from which the steam is then conducted to the apparatus in
which it is intended to be used.-It is to be understood however, that the present
Invention is applicable to various descriptions of boilers or evaporators.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, I declare that what
is claimed is
The improvements in Steam boiler and other furnaces consisting of the general
arrangement of the fuel magazines 10, and 11, the discharge openings or shoots 10,
the openings 4, 6, 12, and 14, the wall 20, and its passages or openings 21, the
openings 22, and a perforated or equivalent furnace door 18, all operating sub-
stantially as, and for the purposes hereinbefore described with reference to the
accompanying Drawings.