AMENDED). A New or Improved Construction of Furnaces for Burning Towns' or other Refuse.
Year: 1888

page_text: The decision of the Comptroller-General, of the 23rd day of November 1893, allowed,
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
Date of Application, 13th Oct., 1888-Accepted, 16th Nov., 1888
COMPLETE SPECIFICATION (AMENDED).
A New or Improved Construction of Furnaces for Burning Towns'
or other Refuse.
I, WILLIAM HORSFALL of Camp Road Mills, Leeds, in the County of York,
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:
The object of my invention is to construct furnaces for burning towns or other
refuse, and to apply means for assisting in the burning of such refuse and products
of combustion thereof, so that the operation may be performed without any danger
to health or inconvenience to the district in which the furnaces are placed, such
invention having reference to a Patent granted to me dated 24th June 1887
No. 8999.
In the accompanying drawings Fig. 1 is a front elevation. Fig. 2 a transverse
section, and Fig. 3 a sectional plan.
To accomplish the above object I employ arched or dome shaped reverberatory
furnaces A. A, these are formed of brickwork B. B, and provided with grate
.bars C C. These grate bars may be of any known construction whereby the fuel
is carried forward to the front of the furnaces by motion imparted thereto. In my
drawings I have shewn an arrangement of grate bars C. C having a feeding motion
imparted thereto from cams D. D mounted on the rotating shafts E. E. Each
furnace is provided with a hopper F F into which the material is passed, and as
the material is being burned it is moved forward by the grate bars CC toward the
openings G G in front of the furnaces from which it is drawn by the attendant.
The products of combustion pass upwards through openings H. H into flues J. J,
from thence into chamber K and afterwards to a suitable chimney. The material
is tipped into the hoppers F F from platforms L elevated above the furnaces.
Below the grate bars CC are provided conical tubes M. M or other passages
which pass through the outer walls and are open to the outer air, by preference in
front of the furnaces. The steam jets N N are coupled to the boiler P at the top
and terminating at their other ends with taper mouths or nozzles R through which
steam is injected from the boiler into the conical tubes, and by so doing forces air
from the outside through the conical tubes into the chambers S S below the grate
bars, thence through the grate bars and into the fires, causing thereby a very rapid
combustion of the material forming the fires, without draught.
The products of combustion passing from the fires through the flues J. J as above
described causes the brickwork forming them to become intensely hot, whereby the
These heated
noxious gases or products of combustion are ignited and burned.
products of combustion travel from the flues J J to the boiler- P for the purpose of
raising steam.
Dampers T are employed in the flues J J for closing the same when required for
repairs or other purposes, so that any furnace or furnaces can be thrown out of
action without interfering with the others.

page_text: The additional chamber K is employed for burning straw, paper and other bulky
material, also for melting down metals from old metallic kettles, pans and other
articles, such as become fluid under 1500° Farenheit, such molten metal being
deposited on the floor of the furnace, and can be taken away or run out in ingots at
pleasure.
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 I do
not claim generally the use for burning towns' or other refuse of reverberatory furnaces
with dome shaped roofs in as much as the openings II. H. in the front portion of the
furnace roof are an essential part of my invention, but subject to the above, I say that
what I claim is :-
1st. The arrangement, construction-and-application of additional chamber K,
substantially as and for purposes herein set forth.
2nd. The general arrangement, construction and combination of the various
parts forining the furnaces for burning towns or other refuse, substantially as
herein set forth.
Dated this 13th day of October 1888.
J. W. HARDING,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
A New or Improved Construction of Furnaces for Burning Towns'
or other Refuse.
I, WILLIAM HORSFALL of Camp Road Mills, Leeds in the County of York,
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 :-
The object of my invention is to construct furnaces for burning towns or other
refuse, and to apply means for assisting in the burning of such refuse and products of
combustion thereof, so that the operation may be performed without any danger to
health or inconvenience to the district in which the furnaces are placed, such invention
having reference to a patent granted to me dated 24th June 1887 No. 8999.
In the accompanying drawings Fig. 1 is a front elevation. Fig. 2 a transverse
section, and Fig. 3 a sectional plan.
To accomplish the above object I employ arched or dome shaped reverberatory
furnaces A. A, these are formed of brickwork B. B, and provided with grate bars CC.
These grate bars may be of any known construction whereby the fuel is carried
forward to the front of the furnaces by motion imparted thereto. In my drawings
I have shewn an arrangement of grate bars C. C having a feeding motion imparted
Each furnace is
thereto from cams D. D mounted on the rotating shafts E. E.
provided with a hopper F F into which the material is passed, and as the material is
being burned it is moved forward by the grate bars CC toward the openings G G in
front of the furnaces from which it is drawn by the attendant.
The products of combustion pass upwards through openings H. H into flues J. J,
The material is
from thence into chamber K and afterwards to a suitable chimney.
tipped into the hoppers F F from platforms L elevated above the furnaces.
Below the grate bars C C are provided conical tubes M. M or other passages which
pass through the outer walls and are open to the outer air, by preference in front of
the furnaces. The steam jets N N are coupled to the boiler Pat the top and termi
nating at their other ends with taper mouths or nozzles R through which stean is
injected from the boiler into the conical tubes, and by so doing forces air from the

page_text: outside through the conical tubes into the chambers S S below the grate bars, thence
through the grate bars and into the fires, causing thereby a very rapid combustion of
the material forming the fires, without draught.
The products of combustion passing from the fires through the flues J. J as above
described causes the brickwork forming them to become intensely hot, whereby the
noxious gases or products of combustion are ignited and burned. These heated
products of combustion travel from the flues J J to the boiler P for the purpose of
raising steam.
Dampers T are employed in the flues J J for closing the same when required for
repairs or other purposes, so that any furnace or furnaces can be thrown out of action
without interfering with the other's.
The additional chamber K is employed for burning straw, paper and other bulky
material, also for melting down metals from old metallic kettles, pans and other articles,
such as become fluid under 1500° Farenheit, such molten metal being deposited on
the floor of the furnace, and can be taken away or run out in ingots at pleasure.
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
1st. The arrangement, construction and application of additional chamber K,
substantially as and for purposes herein set forth.
2nd. The general arrangement, construction and combination of the various parts
forming the furnaces for burning towns or other refuse, substantially as herein set
forth.
Dated th 19th J
1000
J. W. HARDING,
Agent for the Applicant.