Improvements in or connected with Destructors and other Furnaces for Treating Refuse.
Year: 1890

page_text: Date of Application, 10th Jan., 1890
Complete Specification Left, 10th Oct., 1890-Accepted, 15th Nov, 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with Destructors and other Furnaces
for Treating Refuse.
CHARLES JONES of "Normanhurst" Ealing in the County of Middlesex Civil
Engineer do hereby declare the nature of this invention to be as follows:-
Furnaces employed for treating town refuse are constructed in blocks of brickwork-
the number of furnaces or cells are determined by the quantity of refuse to be treated,
a block of such brickwork may contain only one cell at a small town or several at a
large town. Where more than one cell is employed it is necessary at times to shut off
a cell to clean out and do repairs whilst the other cells are working. With the present
arrangement much time is lost in stopping a single cell and cold air is admitted into
the flues-the covers used for the purpose are rapidly destroyed by the heat passing
under them.
When the clinker or slag is withdrawn from the cells sulphurous fumes with particles
of fine dust are given off which are injurious to the health of the workmen, they also
give ground for complaint from the surrounding inhabitants. When the fine ashes
are withdrawn from the ashpits as usually constructed similar fumes and dust cause
inconvenience.
By the improvements hereinafter described the closing of a single cell is more
simple, no cold air is admitted and the parts are more durable. The clinker and fine
ash are withdrawn and removed with reduced labor without any possibility of a nuisance
to the workmen or the surrounding inhabitants.
My invention consists in placing an iron door to the outlet opening for products of
combustion from each cell, which may be constructed to slide over the outlet opening
or with hinge joint, the door is fitted with chain or lever which may be conducted to
the front of each cell or worked from the top. When attached to "Fryers Destructor"
cells the door is fixed either in connection with the first opening at the back of the
fire bridge, or in the vertical flue below the fire bridge.
In other furnaces the position must be determined to suit the exit flue for products
of combustion from each cell.
The second part of my invention consists in providing means by which the clinker
from off the top of the fire bars may be guided direct into the ashpit by placing a
moveable or fixed iron apron or hopper in front of the ashpit extending from the floor
of the ashpit near the front curb to about the level hut several inches in front of the
dead plate leaving space for clinker to pass & forming a kind of hopper to receive the
clinkers and discharge them into the ashpit. The same object may be accomplished
by an opening between the fire bars and the dead plate or by openings at the side of
the fire bars.
At the back near the top of the ashpit I provide an opening with valve so that any
vapour generated inside the ashpit may be taken thro' and into the flues-thus the
heat from the clinker the sulphurous fumes and fine dust caused by the withdrawal of
the clinker are under control and the vapour will thus pass direct to the "Fume
Cremator" patented by me July 15th 1885 No. 8690.
The third part of my invention consists in constructing the ashpit with inclined
bottom at about the same gradient as the fire bars and the incline to terminate into a
water trough near the front of the ashpit which is continually supplied with water.
A set of louvres in iron frame is suspended from the underside of the dead plate or
hung on centre pivots thus the whole of the fine ashes must pass into or thro' the

page_text: water as removed also the clinker when discharged direct into the ashpit and the
vapours given off are assisted forward under the fire bars into the flue by the current
of air passing thro' the louvres and the fine dust is retained with the ashes and the
clinker, the inclined bottom facilitates the removal of the ashes and clinker.
January 10 1890.
CHARLES JONES.
COMPLETE SPECIFICATION.
Improvements in or connected with Destructors and other Furnaces
for Treating Refuse.
I, CHARLES JONES, of "Normanhurst," Ealing, in the County of Middlesex, Civil
Engineer, 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:
Furnaces employed for treating town refuse are constructed in blocks of brickwork,
the number of furnaces or cells is determined by the quantity of refuse to be treated,
a block of such brickwork may contain only one cell at a small town or several at a
large town. Where more than one cell is employed, it is necessary at times to shut
off a cell to clean out and do repairs whilst the other cells are working. With the
present arrangement, much time is lost in stopping a single cell and cold air is
admitted into the flues. The covers used for the purpose are rapidly destroyed by the
heat passing under them. When the clinker or slag is withdrawn from the cells,
sulphurous fumes with particles of fine dust are given off, which are injurious to the
health of the workmen, they also give ground for complaint from the surrounding
inhabitants. When the fine ashes are withdrawn from the ashpits as usually con-
structed, similar fumes and dust cause inconvenience. By the improvements hereinafter
described, the closing of a single cell is more simple, no excess of cold air is admitted
into the flue, and the parts are more durable.
The clinker and fine ash are withdrawn and removed with reduced labor without
any possibility of a nuisance to the workmen or surrounding inhabitants.
In the accompanying drawing I have represented a section through one of a number
of cells or furnaces of a destructor showing my invention applied thereto.
a represents the furnace, b the furnace door, c the inclined bottom and fire bars of
furnace, d the ashpit and e the main flue and dust chamber into which the products
of combustion are conducted from the various cells or furnaces.
My invention consists first in placing an iron door f to the outlet opening g for
products of combustion from each cell or furnace, which door may be constructed to
slide over the outlet opening g or with hinge joint as shown in the drawing; the door
is fitted with chain or lever which may be conducted to the front of each cell or
furnace or worked from the top: in the drawings I have shown a chain / attached to
such door f, which chain is carried over guide rollers i and then connected to the
furnace door b, so that when the furnace door b is opened, the door f is thereby auto-
matically closed. This position of the parts is shown by the full lines and the reverse
position by the dotted lines. The chain h may however be operated at any time by
hand. The door f is not made to completely close the outlet opening g, but is made
sufficiently large to prevent too great a draft of air passing therethrough when the
furnace door b is open. When attached to "Fryer's Destructor cells, the door f is
fixed either in connection with the first opening g at the back of the fire bridge, as
shown in the drawing, or in the vertical flue j below the fire bridge. In other furnaces
the position must be determined to suit the exit flue for products of combustion from
each cell.
وو
The second part of my invention consists in providing means by which the clinker
from off the top of the fire bars may be guided direct into the ashpit by placing a
moveable or fixed iron apron or hopper in front of the ashpit extending from the floor
of the ashpit near the front curb to a suitable level and extending the requisite
J

page_text: distance in front of the dead plate leaving space for clinker to pass and forming a kind
of hopper to receive the clinkers and discharge them into the ashpit; the same object
may be accomplished by an opening between the fire bars and the dead plate, or by
openings at the side of the fire bars. In carrying this part of my invention into effect
prefer, as shown in the drawings, to adapt to the front of the ashpit an apron or
guide plate formed in two parts hinged together at k¹, and one part of which is
hinged at to the furnace front at a level with the bottom of the ash pit door l.
When in use this apron or guide plate k will be supported by chains in the position
shown by the full lines, in which position it can receive the clinker raked off the fire
bars and direct it into the ash pit, the door being at such time open; when not in
use the apron or guide plate k is let down in the position shown by the dotted lines,
when one part thereof will hang down vertically in front of the furnace and the other
part will lie on the ground.
At the back near the top of the ash pit, I provide an opening into a flue pipe m
extending along all the cells or furnaces and provided at the end with a pipe m¹
leading into the main flue e. I provide this opening with a valve m² operated by a
rod m³, so that any vapour generated inside the ash pit may when such valve m² is
open, be taken through and into the flues, thus the heat from the clinkers, the
sulphurous fumes and fine dust caused by the withdrawal of the clinker are under
control and the vapour will thus pass direct to the "fame cremator" patented by me
July 18, 1885, No. 8690.
The third part of my invention consists in constructing the ash pit d with an
inclined bottom d¹ terminating in a water trough which is continually supplied with
water. A set of louvres in iron frames is suspended from the underside of the dead
plate or hung on centre pivots; in the drawings I have shown the door / to be fitted
with such louvres, and in order to facilitate the use of such door, I preferably form it
in two parts, each of which is pivotted at top and bottom to the side of the doorway,
so as to be enabled to stand flat against the sides of the ash pit when open. Thus the
clinker and fine dust falling on to the apron or guide plate k or through the furnace
bars, will naturally fall, or can easily be pushed, into the water trough, by which means
the whole of the fine ashes must pass into or through the water as removed, as also the
clinker when discharged direct into the ashpit, and the vapours given off are assisted
forward under the fire bars to the openings in the flue pipe m by the current of air
passing through the louvres and the fine dust is retained with the ashes and the clinker.
The inclined bottom to the ash pit facilitates the removal of the ashes and clinker.
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 destructors or furnaces for treating refuse, the combination with each furnace
or cell of a door automatically operated to close the opening leading from the cell or
furnace to the flue, a flue pipe under the fire bars provided with an opening and valve
to open or close such opening, an apron or guide plate to receive the clinker as it is
raked from the fire bars and direct it into the ash pit, an inclined bottom to the ash
pit terminating in a water trough, and ash pit door fitted with louvres, all substantially
as herein shown and described and for the purpose stated.
2. In destructors or furnaces for treating refuse, the combination therewith of a
door to close the opening leading from each cell or chamber to the flue and operating
such door automatically on the opening and closing of the furnace door, substantially
as herein shown and described and for the purpose stated.
3. In destructors or furnaces for treating refuse, the combination therewith of an
inclined bottom to the ash pit terminating in a water trough, an apron or guide plate
to guide the clinkers into the ash pit and ash pit door, substantially as herein shown
and described and for the purpose stated.
4. In destructors or furnaces for treating refuse, the combination therewith of a flue
pipe under the furnace bars leading to the main flue, an opening into such flue pipe, a

page_text: valve to open and close such opening and louvres in the ash pit door, substantially as
herein shown and described and for the purpose stated.
Dated this 10th day of October 1800
CHARLES JONES.
By Harris & Mills,
23, Southampton Buildings, London, Agents.