AN IMPROVED METALLIC ALLOY
Year: 1881

page_text: LETTERS PATENT to William Lloyd Wise, of 7, Whitehall Place, in the City
of Westminster, for an Invention of "AN IMPROVED METALLIC ALLOY."
A communication from abroad by Karl Heinrich Kühne, of Loebtau, near
Dresden, Saxony, in the German Empire,
PROVISIONAL SPECIFICATION left by the said William Lloyd Wise at
the Office of the Commissioners of Patents on the 24th May 1881.
WILLIAM LLOYD WISE, of 7, Whitehall Place, in the City of Westminster.
"AN IMPROVED METALLIC ALLOY." (A communication from abroad by Karl
Heinrich Kühne, of Loebtau, near Dresden, Saxony, in the German Empire.)
As described by my foreign correspondent, " this Invention refers to the production
of a new and useful metallic alloy, which is composed of
831% of copper.
7
"
% tin.
% lead.
35% "phosphor.
"
In manufacturing the same the 83% of copper and 70% of tin are melted in
the usual manner, and if in a molten state I add to this %%% of phosphor. While
adding this phosphor the molten metal should be well stirred. Lastly, the lead (9%)
is added to the molten mass, and the whole is well fused. In casting this alloy
care should be taken to pour it out of the vessel in as cold a state as the fluid
metal will allow. If the fluid metal is poured into a form or mould of considerable
bulk or cubic content, the metal may be poured out in a cooler state than in
casting thinner or finer articles.
The alloy being of greatest resistance or toughness, combined with softness, it
may be used for many different purposes, as, for instance, bearings, fitting, axle
boxes, valve seats, piston rings, etc.
I do not limit myself to the employment of said alloy for the articles mentioned,
nor do I limit myself to the exact proportions of the copper, tin, lead, and
phosphor, as stated above, though I have found that the above stated proportions
will answer very well in practice.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and of
an Order of the Lord Chancellor, filed by the said William Lloyd Wise in the
Great Seal Patent Office on the 2nd March 1882.
WILLIAM LLOYD WISE, of 7, Whitehall Place, in the City of Westminster.
"AN IMPROVED METALLIC ALLOY." (A communication from abroad by Karl
Heinrich Kühne, of Loebtau, near Dresden, Saxony, in the German Empire.)
This Invention refers to the production of a new and useful metallic alloy, which
is composed of
83 per cent. of copper.
+
7
per cent. of tin.
per cent. of lead.
3/4 per cent. of phosphorus.
In manufacturing the same, the 83 per cent. of copper and 7 per cent. of tin
are melted in the usual manner, and whilst in a molten state there is added to this
the 3 per cent, of phosphorus. While adding this phosphorus the molten metal
should be well stirred. Lastly, the lead (9 per cent.) is added to the molten mass,
and the whole is well fused. In casting this alloy care should be taken to pour it
out of the vessel in as cold a state as the fluid metal will allow. If the fluid metal
is poured into a form or mould of considerable capacity or cubic content the metal
may be poured out in a cooler state than in casting thinner or finer articles.
The alloy having great resistance or toughness, combined with softness, it may
be used for many different purposes, as, for instance, for bearings, for fitting, for
axle boxes, for valve seats, for piston rings, etcetora.
I do not confine myself to the employment of the above described alloy for the
purposes mentioned, nor do I limit myself to the exact proportions of the copper,
tin, lead, and phosphorus as stated above, though the said proportions have been
found to answer very well in practice.
Having thus described the nature of the said Invention, and explained the
mauner in which it is to be or may be performed, as communicated to me as
aforesaid, I would have it understood that what is considered to be novel and
original, and is therefore claimed as secured to me under the Letters Patent herein-
before in part recited is,-
The improved metallic alloy composed of copper, tin, lead, and phosphorus,
substantially as described.
In witness whereof, I, the said William Lloyd Wise, have hereunto set my
band and seal, this Second day of March, in the year of our Lord One
thousand eight hundred and eighty two.
w. LLOYD WISE. (L.S.)