Smoke in Steam Boiler and other Furnaces.
Year: 1887

page_text: Date of Application, 18th Jan., 1887
Complete Left, 18th Oct., 1887
Complete Accepted, 18th Nov., 1887
Smoke in Steam Boiler and other Furnaces.
I ALFRED HUGH WILLIAM BROWN of 1 Waterloo Place, Pall Mall, in the county
of Middlesex, Naval Architect, do hereby declare the nature of said invention to be as
follows:-
My invention relates to improvements upon an invention for which Letters Patent
were granted to me dated May 4, 1885, No. 9298.
In the construction described in the specification of the above mentioned Letters
Patent the products of combustion after passing away from the furnace over the
ordinary bridge were caused partly to pass through passages formed in a hanging
bridge, but such arrangement was somewhat liable to choke and was difficult to clean.
In order to obviate these difficulties instead of employing a hanging bridge I line
the furnace flue with fire clay bricks or slabs and at both ends and at one or more
places intermediate thereof 1 form projecting rings or baffles of fire clay, the openings
through these rings or battles being eccentric of the flue and somewhat nearer the
bottom than the top so as to offer less obstruction to the passage therethrough of dust
and other solid material and to facilitate the cleansing thereof; across the flue
extending from one side of the lining to the other and preferably fitted in recesses
in the rings or baffles are a number of removable fire clay bars so spaced and set at
such angles with respect to each other as to divert the current differently at cach
bar and at the same time pernit of ready access for cleaning and repairs.
ALFRED H. BROWN.
By Harris & Mills,
23, Southampton Buildings,
Agents.

page_text: Smoke in Steam Boiler and other Furnaces.
I, ALFRED HUGH WILLIAM BROWN of 1. Waterloo Place, Pall Mall, in the County
of Middlesex, Naval Architect, do hereby declare the nature of this invention, and
in what manner the same is to bo performed, to be particularly described and
ascertained in and by the following statement:-
My invention relates to improvements upon an invention for which Lotters Patent
were granted to me, dated May 4, 1885, No. 9298.
In the construction described in the specification of the above mentioned Letters
Patent the products of combustion after passing away from the furnace over the
ordinary bridge were caused partly to pass through passages formed in a hanging
bridge, but such arrangement was somewhat liable to choke and was difficult to clean.
In order to obviate these difficulties instead of employing a hanging bridge I
line the furnace flue with fire clay bricks or slabs and at both ends and at one
or more places intermediate thereof I form projecting rings or baffles of fire clay,
the opening through these rings or baffles being eccentric of the flue and somewhat
nearer the bottom than the top so as to offer less obstruction to the passage there-
through of dust and other solid material and to facilitate the cleansing thereof;
across the flue extending from one side of the lining to the other and preferably
fitted in recesses in the rings or baffles are a number of removeable fire clay bars, so
spaced and set at such angles with respect to each other as to divert the current
differently at each bar and at the same time permit of ready access for cleaning and
repairs.
And in order that the said invention may be more clearly understood and readily
carried into effect I will proceed aided by the accompanying drawings more fully to
describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical longitudinal section through the furnace of a steam boiler
illustrating my invention and Figure 2 is a transverse section thereof taken on the
line 1-1 of Figure 1 and looking in the direction of the flue.
A represents the shell of the boiler; B represents the furnace and C represents
the flue.
The flue of the furnace according to my invention I line for some part of its
length with fire clay bricks or slabs c and at both ends of this lining c and at one
or more places intermediate thereof I form projecting rings or baffles c' of fire clay.
ΕΠΙ
ALL
the bailar Avn A

page_text: and somewhat nearer to the bottom than the top, so as to offer as little obstruction as
possible to the passage therethrough of dust and other solid material and to facilitate
the cleansing thereof.
Across the flue C extending from one side of the lining c to the other and prefer-
ably fitted into recesses in the rings or baffles are arranged a number of
removeable fire clay bars e so spaced and set at such angles with respect to each
other as to divert the current differently at cach bar ² and at the same time permit
of ready access for cleaning and repairs.
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 employment in the flue of a steam boiler or other furnace of lining c, rings or
baffles c¹ and bars c² all constructed of fire clay and arranged in manner substantially
as herein shown and described and for the purpose stated.
ALFRED HUGH WILLIAM BROWN.
By Harris & Mills,
23, Southampton Buildings,
Agents.