Improved Methods to Alloy Metallic Aluminium with any other Metal.
Year: 1888

page_text: Date of Application, 29th Oct., 1888
Complete Specification Left, 28th Aug., 1889-Accepted, 28th Sept., 1889
PROVISIONAL SPECIFICATION.
Improved Methods to Alloy Metallic Aluminium with any other
Metal.
LEON QUENTIN BRIN Engineer of Paris 6 rue Wilhem Auteuil ARTHUR BRIN
Engineer 59 Brompton Crescent Kensington London, do hereby declare the nature
of this invention to be as follows:-
Our process is as follows
We reduce the metal to be alloyed with aluminium to a fluid condition in a suitable
furnace such as Brass furnace, Crucible; for bronze copper alloys and a "Siemens
Martin" or other similar furnace for "Steel and iron" alloys in order to bring the
metal to be alloyed, into a proper condition to absorb the metallic aluminium to be
added. We use as a preliminary a flux containing alumina such form as clay,
Cryolite or other aluminous ore, wich flux also contains a proper proportion of fluor
spar and common salt with Borax and having introduced a small quantity of the said
aluminous flux and at a convenient temperature, we continue to aluminize our metal
by the addition of small pieces of metallic aluminium to such extent as is required to
obtain the richness of alloy proposed previously coating the aluminium prepared to be
so introduced with the above aluminous flux, and we dry it before using.
By this means we entirely obviate :-
10. The great loss wich takes place through the evaporisation of aluminium when
introduced as free unctal into furnaces of a high temperature.
20. This method makes the alloy produced perfectly homogeneous and of a stable
character as to its richness and prevents also the aluminium from levigating and
separating as is usually the case on account of the difference of specific gravity
between it and other metals.
Dated this Twenty-ninth day of October 1888.
COMPLETE SPECIFICATION.
Improved Methods to Alloy Metallic Aluminium with any other
Metal.
We, LÉON QUENTIN BRIN, and ARTHUR BRIN, of 59, Brompton Crescent, South
Kensington, London, S.W. 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 improved process of alloying metallic aluminium with
any other metal or metals when in a molten state; and has for its object to avoid the
loss of aluminium by vaporization which occurs when metallic aluminium is added to
molten metal and to produce an alloy which is perfectly homogeneous and free from
inequality of mixture due to difference of specific gravity and in which the aluminium
is present in definite predetermined proportions.
In carrying this invention into effect, the metal to be melted is either broken in
small pieces and coated with an aluminium-yielding flux, such as hereafter described
made into a paste with water, or the said flux in a powdered state is added to the
metal before or after melting.

page_text: Clay, bauxite, or cryolite, etc.
Common Salt
Fluor Spar
Borax
-
100 parts.
-
125
"
"
25
15 "
ground together and. intimately mixed. This flux becomes fused before the melting
point of the metal is reached and protects the surface of the metal from oxidation.
It also initiates the operation of alloying with aluminium, that metal being reduced
from the flux and alloyed with the other metal in the act of melting. Metallic
aluminium broken into small pieces, coated with the aluminium-yielding flux above
described, and dried in a kiln, is then added to the bath of molten metal, by pushing
it down into the metal through the supernatant flux, whereupon the metals readily
combine, forming a uniformly homogeneous alloy.
The above described operation may be performed either in a crucible for copper
alloys, or in a Siemens-Martin, or other similar furnace for iron or steel alloys.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the saine is to be performed, we declare that what we
claim is ;
The herein described process of alloying aluminium with another metal or metals,
by adding metallic aluminium to the bath of molten metal in the presence of an
aluminium-yielding flux, as specified.
Dated this 2zon day of August 1889.
L. Q. BRIN.
A. BRIN.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.