Improvements in or relating to Kilns for Burning Sewer Pipes and other Articles of Clay Manufacture.
Year: 1899

page_text: Date of Application, 31st July, 1899-Accepted, 7th Oct., 1899
Improvements in or relating to Kilns for Burning Sewer Pipes and
other Articles of Clay Manufacture.
I, JAMES THOMAS FINCH, residing at Manchester Avenue, in the Village of
Mimico, in the County of York and Province of Ontario, Canada, Sewer Pipe
Trap Maker, 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:
This invention relates to certain new and useful improvements in kilns for
burning sewer pipes, and it relates more particularly to the peculiar construction
of the kiln and the manner of conducting and controlling the passage of, the
products of combustion from one kiln to another; the invention being carried out
in the following manner:
Within the upper part of each kiln is a supplemental chamber formed by
the ordinary top of the kiln, and an arch-shaped dome slightly below the top,
the edges of which are built into or connected to the sides of the kiln in any
ordinary manner.
Formed through the arch-shaped dome are a series of independent damper-
controlled openings establishing the means of communication between the supple-
mental and burning chambers and connecting the supplemental chambers of
two adjacent kilns is a pipe fitted with suitable dampers to control the passage
of the products of combustion from the supplemental chamber of one kiln to
the supplemental chamber of the other.
In the top of each kiln are a series of openings, opposed to the openings
through the arch-shaped dome, closed by removable covers, the purpose of which
is to permit of access to the dampers of the openings through the dome and
also to allow the heated gases to escape from within the kiln when it is desired
to rapidly cool the kiln.
The invention is hereinafter more fully set forth and more particularly pointed
out in the claims.
In the drawings:
Fig. 1 represents a sectional view of two adjacent kilns.
Fig. 2 is a sectional view on the lines aa Fig. 1, showing the arrangement
of flues.
Fig. 3 is a sectional view on the lines b-b Fig. 1.
Like letters of reference refer to like parts throughout the specification and
drawings.
A represents the body of the kiln, which may be of any size and shape; B re-
presents the top of the kiln; and C, C, represents the fire-holes-the invention
thus far being similar to any of the kilns in common use.

page_text: to full fires. The gases from the first kiln when burning with the full fires
can be drawn from the first kiln into the second kiln, and used instead of
the slow fires, and when the gases from the first kiln have burned the contents
of the second kiln to the same degree of hardness as the slow fires would, the
full fires are started in the second kiln, and the means of communication between
the two kilns is closed off. When the contents of the first kiln are properly
burned the openings H through the top are uncovered, and the gases are per-
mitted to escape to the outer atmosphere and the kiln allowed to rapidly cool
down, after which its contents are removed, the kiln refilled and the heated
gases drawn from the second kiln into the first in the same manner as just
described.
The dome D serves a secondary purpose in addition to forming the supple-
mental chamber E; that is, it acts as a baffle for the heated products of com-
bustion and gases from the burning chamber of the first kiln, breaking the
force of the current before permitting it to escape into the body of the second
kiln and rendering it impossible for the heated currents to injure the
contents.
It is possible to use this style of a kiln for burning other classes of clay
goods besides sewer pipe, and it is not desired, therefore, that the invention
should be confined solely to this particular class of manufacture.
It is also possible to fit a pipe to the supplemental chamber of the kiln and
convey the heated gases from that chamber to the drying room of the factory,
or to any other place where it might be desired to use the same.
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:
1. The combination of a pair of kilns for burning sewer pipe &c., each
consisting of a burning chamber, an arch-shaped dome for the burning chamber
having a series of openings therethrough, removable dampers to close the
openings, a top enclosing the arch-shaped dome, and forming with it a supple-
mental chamber, openings formed through the top opposed to the openings
through the dome removable covers to close the openings, and a conduit pipe
connecting the supplemental chambers of the kilns, substantially as specified.
2. A kiln for burning sewer pipe and other articles of clay manufacture con-
sisting of a body, a top for the body, an arch-shaped dome within the upper part
of the body arranged to form between itself and the under side of the top a
supplemental chamber, a series of openings through the arch-shaped dome,
removable covers to close the openings a series of openings through the top of
the kiln, covers to close the openings, an outlet from the supplemental chamber,
and an outlet from the body of the kiln to the chimney, substantially as
specified.
3. A pair of kilns for burning sewer pipe and other articles of clay manu-
facture each consisting of a body, a top for the body, an arch-shaped dome within
the upper part of the body arranged to form between itself and the under side
of the top a supplemental chamber, a series of openings through the arch-shaped
dome, removable covers to close the openings a series of openings through the
top of the kiln, covers to close the openings, a pipe connecting the supplemental
chambers of the two kilns, and an outlet from the body of each kiln to the
chimney, substantially as specified.
4. A pair of kilns for burning sewer pipe and other articles of clay manufacture
each consisting of a body, a top for the body, an arch-shaped dome within the
upper part of the body arranged to form between itself and the under side of the
top a supplemental chamber, a series of openings through the arch-shaped dome,
removable covers to close the openings, a series of openings through the top
of the kiln, covers to close the openings, a pipe connecting the supplemental
chambers of the two kilns, and an outlet from the body of each kiln to the