An Improved Metallic Alloy for Syphon. Heads and other Objects and for Tinning Purposes in General.
Year: 1889

page_text: Date of Application, 6th Mar., 1889-Accepted, 3rd Aug.,
1889
גענע געט
DI BUIFICATION.
An Improved Metallic Alloy for Syphon. Heads and other Objects
and for Tinning Purposes in General.
We, DAVID JACOB REISZ, MARKUS BERKOVITS and JOSEF BICHLER all of
10 Trommelgasse Budapesth in the Kingdom of Hungary and Austrian Empire,
Engineers, do hereby declare the nature of our said invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement
Our invention relates to the manufacture of an improved metallic alloy used in
the manufacture of syphons for effervescent beverages and other liquids and for tinning
purposes in general.
According to the laws at present in force an alloy consisting of 90 parts pure tin
and 10 parts lead is to be used and a very similar alloy is employed for tinning vessels
and other objects. Although the presence of so small a quantity of lead, taking for
granted that these proportions are conscientiously observed, will have hardly any dis-
advantageous influence in a hygienic sense it is very desirable that the lead should
be entirely eliminated from such alloys.
The elimination of the lead could heretofore not be attained for the reason that
pure tin is very soft and can only be mixed with other metals with great difficulty
or not at all.
After many and exhaustive experiments we have however discovered that
it is possible to combine pure tin with nickel by means of a special process..
The difficulties to be overcome in making this alloy consists therein that nickel as is
well known only melts a very high temperature almost as high as pig iron that is
1400° Centigrade whilst pure tin melts at 230° C. Our process of alloying these
two metals is for this reason as follows:-
==
We first heat for instance a 100 Kilogramms pure tin up to about 230° and about
30 to 50 decagrammes nickel in a separate crucible to red heat. About 1 Kilogramme
of the tin heated to about 230° C. is added to the glowing nickel. In about 25 to
30 minutes the nickel will be chemically perfectly amalgamated with the tin where-
upon this amalgam or alloy of one Kilogramme tin and 30 to 50 decegrammes nickel
is added to the 99 kilogrammes molten tin and the alloy well stirred for a given time.
The metallic alloy, nickel tin, so produced can be used for casting syphon heads
and other objects or in smaller or larger blocks which can be applied in well known
manner for tinning vessels and other objects. The metal or alloy so produced is
compact, strong and has the colour of nickel.
Objects cast from the same are strong, durable and do not oxidize but always retain
their nickel colour and polish.
This is also the case with vessels tinned with our alloy which is much more
durable than the ordinary tinning and proves a great advance in sanitary respects.
It will be evident that the proportions mentioned above and also the temperatures
used can be varied without in any way departing from the nature of our invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
°
A process for manufacturing a new metallic alloy denominated nickel tin for syphons
or other objects and for tinning in general, consisting in heating about 30 to
50 decagrammes nickel to red heat in a separate crucible, then adding about 1 Kilo-
gramme pure tin which has been heated to about 230° C. Centigrade and when

page_text: these metals have become chemically amalgamated adding the same to about 99 Kilo-
grammes pure tin, heated in a separate vessel to about a 230° C. Centigrade and
thoroughly stirring the entire mass for a given time, substantially as herein
described.
This all
ML 1.000