IMPROVEMENTS IN METALLIC ALLOYS OR COMPOUNDS AND IN PRODUCING THE SAME
Year: 1884

page_text: I ALFRED GEORGE BROOKES of the firm of Wm Brookes & Son of 55 Chancery
Lane in the County of Middlesex Fellow of the Institute of Patent Agents do
hereby declare the nature of my invention for IMPROVEMENTS IN METALLIC
ALLOYS OR COMPOUNDS AND IN PRODUCING THE SAME to be as follows:-
The objects of the improvements are the alloying of heavy metals with sulphurets
of heavy metals by adding conveniently alkali-metals or alkaline earth-metals and
the products of such alloying processes.
To alloy a heavy metal or alloys of heavy metals with a sulphuret of a heavy
metal the latter is mixed with molten zinc, thus producing an alloy of zinc with a
sulphuret of an other heavy metal. When such alloys are in a molten state mixed
together with other heavy metals, the products of such melting process will be
alloys of great strength and resisting force and of very bright colours. The zinc
may be easily removed from the alloys by cupellation; in some cases the mixture
of the sulphuret of the heavy metal in molten zinc may be entirely omitted and
the sulphuret dissolved or mixed directly in the heavy metal or the alloy of heavy
metals.
When alkali-metals or alkaline earth-metals are desired to be introduced in
alloys of heavy metals and sulphurets of heavy metals, the sulphuret of the alkali-
metal or alkaline earth metal selected is added little by little or in portions to the
molten heavy metal or alloy of heavy metals. The reaction generated by such
additions is a very violent one; therefore each quantity of the sulphuret of the
alkali-metal or alkaline earth-metal introduced into the molten metal or alloy ought
to be very small, as otherwise the whole mass contained in the furnace or the
crucibles might be blown out. During the introduction of the sulphuret of the
alkali-metal or alkaline earth-metal into the molten heavy metal or alloy of heavy
metals a decomposition of the sulphuret takes place, as its sulphur unites with a
part of the heavy metal or metals, while the nascent alkali-metal or alkaline
earth-metals enters into chemical combination with the heavy metal or metals.
whereby all danger of destroying the alkali-metals or alkaline-earth-metals by
combustion is prevented. The sulphuret of the heavy metal thus produced
becomes completely combined or mixed with the molten metal or alloy.

page_text: COMPLETE SPECIFICATION.
Improvements in Metallic Alloys or Compounds and in
Producing the same.
I ALFRED GEORGE BROOKES of the firm of Wm Brookes & Son of 55 Chancery
Lane in the County of Middlesex Fellow of the Institute of Patent Agents do
hereby declare the nature of my invention for IMPROVEMENTS IN METALLIC
ALLOYS OR COMPOUNDS AND IN PRODUCING THE SAME, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The objects of the improvements are the alloying of heavy metals with
sulphurets of heavy metals by adding conveniently alkali-metals or alkaline earth-
metals and the products of such alloying processes or producing metallic alloys or
compounds by melting heavy metals with sulphurets of heavy. metals; producing
metallic alloys or compounds of sulphurets of alkali-metals or alkaline earth-metals
with heavy metals or alloys; producing alloys or compounds composed of heavy
metals and sulphurets of heavy metals; and, metallic alloys or compounds
composed of heavy metals, sulphurets of heavy metals and alkali-metals or alkaline
earth-metals and the products of such alloying processes.
To alloy a beavy metal or alloys of heavy metals with a sulphuret of a heavy
metal I dissolve the latter in molten zinc, thus producing an alloy of zinc with a
sulphuret of another heavy metal. When such alloys are molten together with
other heavy metals, the products of such melting process will be alloys of great
strength and resisting force and of very bright colours. The zinc may be easily
removed from the alloys by cupellation; in some cases the dissolution of the
sulphuret of the heavy metal in zinc may be entirely omitted and the sulphuret
dissolved directly in the heavy metal or the alloy of heavy metals.
When alkali-metals or alkaline earth-metals are to be introduced in alloys of
heavy metals and sulphurets of heavy metals, the sulphuret of the alkali-metal or
alkaline earth-metal selected is added little by little or in portions to the molten,
heavy metal or alloy of heavy metals. The reaction generated by such additions
is a very violent one; therefore each quantity of the sulphuret of the alkali-metal
or alkaline earth-metal introduced into the molten metal or alloy ought to be very
small, as otherwise the whole mass contained in the furnace or the crucibles might
be blown out. During the introduction of the sulphuret of the alkali-metal or
alkaline earth-metal into the molten heavy metal or alloy of heavy metals a
decomposition of the sulphuret takes place, as its sulphur unites with a part of the
heavy metal or metals, while the nascent alkali-metal or alkaline earth-metals
enters in chemical combination with the heavy metal or metals, whereby all danger
of destroying the alkali-metals or alkaline-earth-metals by combustion is prevented.
The sulphuret of the heavy metal thus produces becomes combined or is entirely
dissolved in the molten metal or alloy.

page_text: 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 herein-described process of producing metallic alloys or compounds by
melting heavy metals with sulphurets of heavy metals.
2. The herein-described process of producing metallic alloys or compounds by
adding little by little or repeatedly small portions of sulphurets of alkali-metals or
alkaline earth-metals to molten heavy metals or alloys.
3. Metallic alloys or compounds composed of heavy metals and sulphurets of
heavy metals, substantially as set forth.
4. Metallic alloys or compounds composed of heavy metals, sulphurets of heavy
metals and alkali-metals or alkaline earth-metals, substantially as set forth.
Dated this 26th day of August 1885.
WM BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the said Alfred George Brookes.