Improvements in or connected with Smelting Furnaces for Metallic Alloys.
Year: 1898

page_text: Date of Application, 27th Apr., 1898-Accepted, 2nd July, 1898
COMPLETE SPECIFICATION.
Improvements in or connected with Smelting Furnaces for Metallic
Alloys.
I, FRIEDRICH WILHELM MINCK, Manufacturer, of 71, Thurmstrasse, Berlin, in
the Empire of Germany, 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 an arrangement employed in smelting furnaces, which
entirely covers the fire-space round the melting pot and at the same time allows
the steam, smoke, and similar bodies produced during the alloying operations to
be drawn off through the chimney, and thus prevented from entering the working
chamber or laboratory. The operator, therefore, is thus able to precisely observe
the stream of melted metal during the alloying operation and to treat the same
without being put to inconvenience by the steam, smoke, or other bodies.
In the accompanying drawing, a smelting furnace to which the new arrange-
a is the melting pot, b the
ment is adapted is shown in longitudinal section.
fire-grate, the ash-pit, d the fire-place, e the outlet for the smoke steam, etc.
f the chimney and ga store-room for the ashes.
The melting pot a is filled with the material to be smelted, closed with a
cover and placed in the fire-place d. The fire-place is then completely filled with
fuel, and, after the fuel has been ignited, is closed by means of a stone-plate.
When the material has reached a molten state and is to be subjected to the
operation of alloying, the fire-place d is opened, the glowing fuel above the
melting pot a removed, the cover of the melting pot lifted off and the new
protecting apparatus or alloy-hopper h suspended in the fire-place d. This
apparatus is funnel-shaped, and rests on the supporting ring i over the space d.
It is furnished with an opening k at the bottom, by means of which a view of
the melting pot is obtainable. To the top of the apparatus, handles are attached,
for the purpose of putting it in and taking it out of the fire-place. The height
of the funnel-shaped apparatus is so regulated that, between the bottom of the
same and the upper edge of the melting pot a, a space m is left, through which
the steam, smoke and other bodies produced during the alloying operation in
process, can escape into the outlet e and thence to the chimney.
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. In smelting furnaces for metallic alloys, the application of a funnel-shaped
5 alloy-hopper, suspended in the fire-place and which, covering the fire, leaves a
free space between itself and the melting pot, by means of which the steam,
smoke and other waste products can be drawn off to the chimney.

page_text: 2. The improvements in or connected with smelting furnaces for metallic
alloys substantially as described with reference to the drawings.
Dated this 27th day of April 1898.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.