Improvements in or relating to the Construction of Destructor Furnaces and in Means for Heating the same, for Burning Noxious Vapours, Gases, Refuse, Garbage, and other Analogous Substances.
Year: 1889

page_text: Date of Application, 30th Jan., 1889
Complete Specification Left, 29th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Construction of Destructor
Furnaces and in Means for Heating the same, for Burning
Noxious Vapours, Gases, Refuse, Garbage, and other Analogous
Substances.
I, JOHN BRADBURY of 199 Moss Lane East, Manchester in the County of
Lancaster, Chemical Engineer and Contractor, do hereby declare the nature of my
said invention to be as follows:-
This invention relates to improvements in or relating to the construction of
destructor furnaces and in means for heating the same for the purpose of burning
and destroying all sorts of Town's refuse, Market Garbage, Street Sweepings, and
organic matter, also noxious vapours and gases, such as, Carbonic Acid, Nitrogen,
and Sulphurous Acid, and others generated in the processes of blood drying, bone
boiling, tallow rendering, manufacture of animal size, or others from Chemical and
other works.
The destructor consists of two furnaces, one for drying the substances and the
other for burning or consuming the same. The drying furnace or receiving chamber
is constructed of fire-bricks with a floor or bed of fire-tiles. The inlet to this
furnace or chamber is provided with a suitable door. The furnace or burning
chamber is also constructed of fire brick, with a bed of metallic fire-bars supported
on suitable bearers. Under the fire-bars is provided a chamber or pit to receive
the ashes or mineral matter that may be left. The furnace mouth and ash-pit are
provided with hinged or other doors.
The furnace is heated by means of burning Creosote or other suitable burning oils;
the latter being conducted to the burning furnace by a pipe or pipes passing
through the front of the furnace. The oil is injected into the pipe or oil burner
in the upper part of the burning furnace by the aid of compressed air or steam.
The drying or receiving chamber is heated by the waste heat from the burning
furnace.
As the substances are consumed in the furnace or burning chamber the dried
refuse or substance is pushed into the same from the drying or receiving chamber,
and the gases or vapors given off pass away through openings or passages and
along flues in a zig-zag manner to the upper end of the furnace, from whence they
pass down and through flues over the drying chamber and along passages to flues
underneath the bed of the drying chamber in a zig-zag manner to an exit flue to
the chimney. Suitable passages are provided for conveying gas or vapor that may
be given off in the process of drying to the flues or passages leading from the
burning furnace.
The flue between the destructor furnace and the chimney can be employed for
heating fixed retorts or other drying or consuming apparatus.
The destructor furnace can be bound together by metallic plates and bolts or their
equivalents in any convenient manner.
If desired the receiving chamber can be fitted with machinery for automatically
charging and discharging the same with refuse or other substances intended to be
burned or consumed, and consists of a hopper and a worm or screw or other
continuous feeling apparatus driven in any convenient manner.
In the processes of drying blood, bone boiling, tallow rendering, and other
purposes named above the noxious vapors or gases are passed into the flues of the
destructor above the burning furnace, from whence they are drawn through the
numerous heated flues or passages to the chimney.

page_text: The products collected in the chamber or pit underneath the fire-bars can be
utilized for making mortar, manure, and other analogous substances.
Dated the 29th January 1889.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to the Construction of Destructor
Furnaces and in Means for Heating the same, for Burning
Noxious Vapours, Gases, Refuse, Garbage, and other Analogous
Substances.
I, JOHN BRADBURY of 361 Stretford Road, late of 199 Moss Lane East, Manchester
in the County of Lancaster, Chemical Engineer and Contractor, do hereby declare the
nature of my said 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 improvements in or relating to the construction of
destructor furnaces and in means for heating the same for the purpose of burning and
destroying all sorts of Town's refuse, market garbage, street sweepings, and organic
matter, also noxious vapors and gases, such as, Carbonic Acid, Nitrogen, and
Sulphurous Acid, and others generated in the processes of blood drying, bone boiling,
tallow rendering, manufacture of animal size, or others from Chemical and other
works.
The destructor consists of two furnaces, one for drying the substances and the other
for burning or consuming the same. The drying furnace or receiving chamber is
constructed of fire-bricks with a floor or bed of fire-tiles. The inlet to this furnace or
chamber is provided with a suitable door. The furnace or burning chamber is also
constructed of fire-brick, with a bed of metallic fire-bars supported on suitable bearers.
Under the fire-bars is provided a chamber or pit to receive the ashes or mineral
matter that may be left. The furnace mouth and ash-pit are provided with hinged or
other doors.
The furnace is heated by means of burning Creosote or other suitable burning oils;
the latter being conducted to the burning furnace by a pipe or pipes passing through
the front of the furnace. The oil is injected into the pipe or oil burner in the upper
part of the burning furnace by the aid of compressed air or steam.
The drying or receiving chamber is heated by the wasto heat from the burning
furnace.
As the substances are consumed in the furnace or burning chamber the dried refuse
or substance is pushed into the same from the drying or receiving chamber, and the
gases or vapors given off pass away through openings or passages and along flues in
a zig-zag manner to the upper end of the furnaco, from whence they pass down and
through flues over the drying chamber and along passages to flues underneath the bed
of the drying chamber in a zig-zag manner to an exit flue to the chimney. Suitable
passages are provided for conveying gas or vapor that may be given off in the process
of drying to the flues or passages leading from the burning furnace.
The flue between the destructor furnace and the chinney can be employed for
heating fixed retorts or other drying or consuming apparatus.
The destructor furnace can be bound together by metallic plates and bolts or their
equivalents in any convenient manner.
If desired the receiving chamber can be fitted with machinery for automatically
charging and discharging the same with refuse or other substances intended to be
burned or consumed, and consists of a hopper and a worm or screw or other
continuous feeding apparatus driven in any convenient manner.
In the processes of drying blood, bone boiling, tallow rendering, and other purposes
named above the noxious vapors or gases are passed into the flues of the destructor

page_text: above the burning furnace, from whence they are drawn through the numerous heated
flues or passages to the chimney.
The products collected in the chamber or pit underneath the fire-bars can be utilized
for making mortar, manure, and other analogous substances.
Fig. 1 is a sectional elevation of my improved destructor-Fig. 2 is a sectional
elevation through line A¹ B- Fig. 3 is a sectional elevation through line C¹ D'—
Fig. 4 is a sectional plan through line E¹ F-Fig. 5 is a sectional plan through
line G¹ H-Fig. 6 is an outside front elevation, and Fig. 7 an outside back elevation.
A is the drying furnace; B the burning or consuming furnace; C the inlet or
drying furnace door; D. D. the burning furnace doors; E. E the ash-pit doors;
F the fire-bars, and G the ash-pit. The drying chamber or furnace A is constructed
of fire-bricks with a floor or bed of fire-tiles H. The inlet of the drying furnace
or chamber A is fitted with the door C. The burning or consuming furnace B is
also constructed of fire-bricks with a bed of metallic fire-bars F supported on the
bearers 1. The fire-bars F are provided with the ordinary distance pieces to form
air spaces when put together in the furnace. Under the fire-bars F is provided the
chamber or pit Ġ to receive ashes or mineral matter that inay fall through the air
spaces in the fire-bars F. The chamber or ash-pit G is fitted with the doors E. E.
The burning or consuming furnace B is heated by means of burning Creosote or
other suitable burning oils or materials, conducted to the pipe or hydro-carbon
burner K, of any well known form, in the upper part of the furnace B by the
pipe from any convenient source. The Creosote or other suitable burning oil or
material is injected into the furnace B by means of compressed air or steam conveyed
by the pipe M. The pipos L and M are fitted with the valves or taps N to regulate
the temperature of the furnace. Below the valves or taps N the pipes L and M are
connected to the pipe or burner K by the T piece O. The outlet from the T piece Ọ
is fitted with a conical nozzle in the usual manner, by which steam or compressed
air is ejected to force the Creosote or oil through the pipe and burner K into the
furnace B. The drying furnace A is heated by the waste heat from the burning
furnace B. The substances to be consumed are first placed in the furnace A to be
dried, after which they are pushed through the opening P into the furnace B. As
the dried refuse or substance is consumed the gases or vapors given off pass away
through the openings or passages Q and along the flues R in a zig-zag manner, as
indicated by the arrows, to the upper end of the furnace or destructor, from whence
they pass down the flue R' and through the flue R' over the drying furnace A and
down the passages S to the flues T underneath the bed H of the drying chamber or
furnace A in a zig-zag manner to the exit flue V, which is connected to a chimney.
Gas or vapor that may be given off in the process of drying is conducted from
the drying chamber A to the flues R by the openings or passages W. The doors
or other outside parts of each furnace front can be provided with sight holes to
enable the attendant to ascertain the condition of the furnaces during operation
without opening the furnace doors. The openings X are provided to admit atmo-
spheric air if necessary. In case atmospheric air is not required the openings X
are closed in any convenient manner.
The flue V between the destructor and chimney can be employed for heating
fixed retorts and other drying or consuming apparatus.
The destructor can be bound together by the metallic plates Y and bolts Z or
their equivalents in any convenient manner.
Fig. 8 is a part sectional elevation of the feeding end of my improved destructor
wherein the drying chamber A is automatically fed with refuse or other substances
by means of the worm or screw M', driven by the pulley N' from any convenient
source. The worm or screw M is mounted in the box or chamber 0 fitted with
the receiving hopper P³.
When refuse or other substance is being fed to the furnace A by the worm or
screw M³ the dried refuse or substance at the other end of the drying chamber is
pushed through the opening P into the burning furnace B.

page_text: In the processes of drying blood, bone-boiling, tallow rendering, and other purposes
before mentioned the noxious vapors or gases are passed into the flues R of the
destructor above the burning furnace B by the pipe S shown in dotted lines in
Fig. 1, from whence they are drawn through the numerous heated flues or passages
to the chimney.
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 =
1. In destructor furnaces for burning noxious vapors, gases, refuse, garbage, and
other analogous substances the combination of the drying chamber A and the com-
bustion or burning chamber B with the flues disposed so as to conduct the gases
or vapors in a zig-zag form above the said chambers and below the drying chainber
in their passage to the outlet flue connected to a chimney, substantially as described
and as shown on the drawings.
2. In destructor furnaces for burning noxious vapors, gases, refuse, garbage, and
other analogous substances the use of the openings or passages W connecting the
drying chamber A with the flues R for the purpose specified.
Dated the 24th October 1889
EDMUND CHADWICK,
Agent.