Improvements in the Manufacture of Metallic Alloys.
Year: 1895

page_text: Date of Application, 13th Dec., 1895
Complete Specification Left, 26th May, 1896-Accepted, 11th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Metallic Alloys.
I CHARLES PARNACOTT of 2 Festing Road, Putney, Surrey Goldsmith and
Metallurgist do hereby declare the nature of this invention to be as follows:-
The main object of this invention is to produce a white metallic alloy of good
colour, great tensile strength, and elasticity, non-corrodable, impervious to the
action of hydrochloric acid in sea water and all atmospheric influences, suitable for
use in sea water, for machinery, and for all domestic purposes and appliances.
The proportions of the metals used are by weight, say,
I melt the said metals in separate crucibles and mix them at different periods
when the metals are ready to combine with each other and then run the alloy thus
produced into moulds of any convenient shape or form for present or future use as
desired.
The proportions of metals employed may vary according to whether I desire to
make a hard or a soft alloy.
These alloys will resist oxidation, polish most brilliantly and always retain their
colour in fact improve in appearance by wear and will withstand the destructive
influence of hydrochloric acid in sea water, resist chemical fumes and atmospheric
impurities.
The quantities of each of the metals as herein given for composing the said
alloys may be varied according to the special quality of the alloy required.
Dated this 13th day of December 1895
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said C. Parnacott.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said C. Parnacott.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Metallic Alloys.
I, CHARLES PARNACOTT, of 2 Festing Road, Putney, Surrey, Goldsmith and
Metallurgist, 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 :-
The main object of this invention is to produce a white metallic alloy of good
Improvements in the Manufacture of Metallic Alloys.
I, CHARLES PARNACOTT, of 2 Festing Road, Putney, Surrey, Goldsmith and
Metallurgist, 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 :-
The main object of this invention is to produce a white metallic alloy of good

page_text: colour, great tensile strength and elasticity, non-corrodable, impervious to the
action of hydrochloric acid in sea water and all atmospheric influences, suitable for
-use in sea water, for machinery, and for all domestic purposes and appliances.
The proportions of the metals used are by weight, say
The order of mixing the metals is as follows:-
1st. I melt the nickel, and after clearing it from impurities to refine and toughen
it, I add the magnesium in minute charges and well stirring with plumbago rods.
I then mix in an equal quantity, of copper.
2nd. In another crucible, I melt the other portion of copper with the iron and
cobalt, and when they are thoroughly. fused,..I pour the contents into the first
mentioned mass, keeping the same well stirred. When I see the metals are
assuming the desired colour, I stir with a charred wooden rod and add the spelter,
and keep stirring until all the dross and impurities are on the top of the crucible.
I then skim off same and pour the fluid alloy quickly into ingots or moulds as
required.
These alloys will resist oxidation, polish most brilliantly and always retain their
colour in fact improve in appearance by wear and will withstand the destructive
influence of hydrochloric acid in sea water, resist chemical fumes and atmospheric
impurities.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is-
The employment of the metals named in or about the weight proportions given
for the manufacture in the manner set forth of an alloy or alloys having the
properties described.
The 26th day of May 1896.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Charles Parnacott.