Improvements in Brick Kilns.
Year: 1890

page_text: Date of Application, 24th Sept., 1890
Complete Specification Left, 1st July, 1891-Accepted, 24th Nov., 1891,
TRUVIDIONAT DI
Improvements in Brick Kilns.
I, WILLIAM RENNIE, of Sing Sing, in the County of West Chester and State
of New York, United States of America, Bricklayer, do hereby declare the nature
of this invention to be as follows:-
My invention relates to improvements in brick-kilns; and it has for its object to
so improve the construction of the kiln that the flame and smoke will be spread in
the kiln and the gases in the furnace completely consumed, the bricks being thus
properly burned without producing any soft, pale, or over-burned bricks.
In constructing my brick-kiln the walls are braced and strengthened by brick
stays and binding plates in the usual manner, and a crown arch extends between
the ends of the kiln.
any
The furnaces are arranged along the ends of the kiln, and may be of desired
number, according to the size of the kiln, and the furnace-doors are provided with
rotary blowers or dampers to regulate the draft. On each side of each of the
furnaces are formed in the walls air-inlet tubes or passages, which extend longi-
tudinally through walls which are built up between the furnaces and bridge-walls
in the rear of the fire-chambers, and extend inward to about the centre of the
bridge-walls, where they are provided with vertical branches through which the
heated air escapes to the floor of the kiln.
The floor of the kiln is arranged above the fire-chambers and the bridge-wall,
and is supported by the walls. The floor of the kiln is composed of alternate
courses of fire clay and brick, which are arranged to provide air spaces or passages
to facilitate the entrance of the hot air into the kiln.
Peep-holes are provided in the end walls of the kiln above the furnaces, so that
the progress of the burning process may be easily ascertained at all times, and
chimneys lead from the crown-arch to the outer air.
In practice the bricks are piled in the kiln on the floor of the same in the usual
manner, and fires are built in the furnaces, as will be readily understood. The
flames and products of combustion will pass inward over the bridge-wall and under
the floor of the kiln and will pass upward through the floor to the bricks, so as to
burn the same. Fresh air will enter through the inlet-passages and pass through
the same to the vertical branches, from which they escape into the space below the
floor of the kiln, where they will be raised to a high temperature and all gases
ignited and consumed. The floor of the kiln, it will be readily understood, will be
heated to a high degree, so that the gases which may remain unconsumed will be
burned on passing through the floor, and the quantity of fuel necessary to maintain
the fire will be reduced to a minimum. It will be noticed that the flame and smoke
in passing through the floor will be forced to take a circuitous course, and conse-
quently will be spread out and caused to act on all the bricks equally.
Dated this 21th day of September 1890.
F. W. BARKER,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Brick Kilns.
I, WILLIAM RENNIE, of Sing Sing, in the County of West Chester and State
of New York, United States of America, Bricklayer, do hereby declare the nature
of my invention for IMPROVEMENTS IN BRICK-KILNS, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:―
My invention relates to improvements in brick-kilns; and it has for its object to
so improve the construction of the kiln that the flame and smoke will be spread in
the kiln and the gases in the furnace completely consumed, the bricks being thus
properly burned without producing any soft, pale, or over-burned bricks.
The invention consists in certain novel features hereinafter, described and
claimed.
In the accompanying drawings, which fully illustrate my invention,
Figure 1 is a front elevation of my improved brick-kiln.
Fig. 2 is a transverse vertical section taken on. the line y y in Fig. 4.
Fig. 3 is a horizontal section through the dotted linea in Fig. 4 and
Fig. 4 is a sectional view taken at right. angles to Fig. 2 through the dotted
line z z.
Referring to the drawings by letter, A designates the walls, which are braced
and strengthened by the brick-stays B and binding-plates in the usual manner,
and C designates the crown-arch extending between the ends of the kiln, as clearly,
shown in Fig. 2.
The furnaces D are arranged along the ends of the kiln and may be, of any
desired number, according to the size of the kiln, and the furnace-doors E are
provided with rotary dampers F to regulate the draft. On each side of the furnaces
are formed in the walls the air-inlet tubes or passages G, which extend. longi-
tudinally through the walls H and extend inward to about the centre of the
bridge-walls I in rear of the fire chambers D where they are provided with vertical
branches J, through which the heated air is discharged into the flue.
The floor of the kiln is arranged above the fire-chambers and the bridge-wall
and is supported by the walls H, as shown. The floor of the kiln is composed of
alternate courses of fire clay or brick, which are arranged to provide the air spaces
or passages K to facilitate the entrance of the hot air into the kiln.
Peep-holes L are provided in the end walls of the kiln above the furnaces, so
that the progress of the burning process may be easily ascertained at all times, and
chimneys M lead from the crown-arch to the outer air.
In practice the bricks are piled in the kiln on the floor of the same in the usual
manner, and fires are built in the furnaces, as will be readily understood.. The
flames and products of combustion will pass through the passages j through the
crown-arches of the furnace or inwards through the flue and under the floor of
the kiln and will pass upward through the floor to the bricks, so as to burn the same..
Fresh air will enter through the inlet-passages G and pass through the same to
the branches J, from which it escapes into the flue below the floor of the kiln,
where it will be raised to a high temperature and all the gases from the furnaces
will be ignited and consumed. The floor of the kiln it will be readily understood,
will be heated to a high degree, so that the gases which may remain unconsumed will
be burned on passing through the floor, and the quantity of fuel necessary to
maintain the fire will be reduced to a minimum. It will be noticed that the flame
and smoke in passing through the floor will be forced to take a circuitous_course,
and consequently will be spread out and caused to act on all the bricks equally.
My improved kiln is very simple in its construction, and its advantages are
thought to be obvious.

page_text: 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 :-
The improved brick-kiln herein described and shown, consisting of the outer
walls A, the crown-arch extending between the said walls, the chimneys leading
from and through the crown-arch to the open air, the longitudinal walls H, separating
the furnaces, the bridge-walls arranged between the walls H, the said walls H and
the bridge-walls having longitudinal passages from the outer walls to the centres
of the bridge-walls, and the floor supported by the walls H and composed of
successive courses of bricks having their ends and edges overlapping, so as to provide
a number of open spaces, substantially as and for the purposes set forth.
Dated this 25th day of June 1891.
F. W. BARKER,
Applicant's Agent.