IMPROVEMENTS IN METALLIC ALLOYS
Year: 1873

page_text: LETTERS PATENT to Henry Halın, of 27, Lombard Street, in the
City of London, for the Invention of "IMPROVEMENTS IN METALLIC
ALLOYS."-A communication from abroad by Jacob Ernst Jacoby, of
Homburg on the Heights, Germany.
Sealed the 27th March 1874, and dated the 7th October 1873.
PROVISIONAL SPECIFICATION left by the said Henry Hahn at the
Office of the Commissioners of Patents, with his Petition, on the
7th October 1873.
I, HENRY HAHN, of 27, Lombard Street, in the City of London, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
METALLIC ALLOYS," to be as follows:-
-This Invention has for its object improvements in the composition of
metallic alloys applicable to various useful purposes, such as reducing
friction in bearings and other parts of machinery, resisting oxydation,
being also comparatively cheap and economical.

page_text: Metallic alloys made according to this Invention consist in about the
proportions of, from 70 to 73 per cent. of copper, from 9 to 11 per cent.
of tin, from 15 to 20 per cent. of lead, and from 0.05 to 1 per cent. of
zinc.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Hahn in the Great Seal Patent Office on
the 4th April 1874.
•
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
HAHN, of 27, Lombard Street, in the City of London, send grecting:
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of October, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Henry Hahn, Her special
license that I, the said Henry Hahn, my executors, administrators, and
assigns, or such others as I, the said Henry Hahn, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter luring the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
METALLIC ALLOYS," (a communication to me from abroad by Jacob Ernst
Jacoby, of Homburg on the Heights, Germany,) upon the condition
(amongst others) that I, the said Henry Hahn, my executors or
administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Hahn, do hereby declare
the nature of the said Invention, and in what manner the. same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
This Invention has for its object improvements in the composition of
metallic alloys applicable to various useful purposes, such as reducing
friction in bearings and other parts of machinery, resisting oxydation,
being also comparatively cheap and economical.
Metallic alloys made according to this Invention consist in about the
proportions of, from 70 to 73 per cent. of copper, from 9 to 11 per cent.
of tin, from 15 to 20 per cent. of lead, and from 0.05 to 1 per cent. of
zinc.
The above metallic alloys are worked up in the ordinary way of melting,
mixing, or combining metals.
Having thus described. the nature of the Invention, what I claim
under the above in part recited Letters Patent is, the manufacture of
improved metallic alloys applicable to various useful purposes composed
of copper, tin, lead, and zinc, melted and combined together substantially
in the proportions herein-before set forth.
In witness whereof, I, the said Henry Hahn, have hereunto
set my hand and seal, this Twenty-eighth day of March, in
the year of our Lord One thousand eight hundred and seventy-
four.
Witness,
J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane, W.C.
HENRY HAHN. (L.S.)