An Improved Solder for Soldering Aluminium, Aluminium Alloys, and other Metals.
Year: 1894

page_text: Date of Application, 19th Sept., 1894
Complete Specification Left, 27th May, 1895-Accepted, 29th June, 1895
PROVISIONAL SPECIFICATION.
An Improved Solder for Soldering Aluminium, Aluminium Alloys,
and other Metals.
A communication by OTTO NICOLAI, of 3 Burgstrasse, Wiesbaden, in the Empire
of Germany, Merchant.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool and 6 Bank Street,
Manchester both in the County of Lancaster and 323 High Holborn in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention has for its object an improved solder of the kind described in
Patent No. 4980 of 1894, for soldering aluminium, aluminium alloys and other
metals, which solder consisted of a cadmium salt formed of cadmium in combination
with one of the halogens. It has, however, been found in practice that the action of
this solder is considerably increased if chloride of sodium be added to the cadmium
salt. The proportions preferably employed are parts of chloride of sodium to
10 parts of cadmium salt.
Recent experiments have also shown that the salt formed of zinc in combination
with one of the halogens yields an excellent solder for aluminium and the like, if
The mixture is
about of its weight of chloride of sodium be added to it.
preferably dissolved in water and evaporated. The soldering then takes place in
the ordinary manner by means of a soldering pipe.
Dated this 18th day of September 1894.
An Improved Solder for Soldering Aluminium, Aluminium Alloys,
and other Metals.
A communication by OTTO NICOLAI, of 3 Burgstrasse, Wiesbaden, in the Empire
of Germany, Merchant.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.1.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street,
Manchester, both in the County of Lancaster, 118 New Street, Birmingham in
the County of Warwick and 31 High Holborn in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described aud ascertained in and by
the following statement:-
This invention has for its object an improved solder of the kind described in
Patent No. 4980 of 1894, for soldering aluminium, aluminium alloys and other
metals, which solder consisted of a cadmium salt formed of cadmium in combination

page_text: with one of the halogens. It has, however, been found in practice that the action
of this solder is considerably increased if chloride of sodium be added to the
cadmium salt. The proportions preferably employed are 2 parts of chloride of
sodium to 10 parts of cadmium salt.
Recent experiments have also shown that the salt formed of zinc in combination
with one of the halogens yields an excellent solder for aluminium and the like, if
about of its weight of chloride of sodium be added to it. The mixture is
preferably dissolved in water and evaporated. The soldering then takes place in
the ordinary manner by means of a soldering pipe.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. An improved solder for soldering aluminium, aluminium alloys, and other
metals consisting of a mixture of a cadmium salt (formed of cadınium in combina-
tion with one of the halogens) and chloride of sodium substantially as hereinbefore
set forth.
2. An improved solder for soldering aluminium, aluminium alloys, and other
metals consisting of a mixture of a zine salt (formed of zinc in combination with
one of the halogens) and chloride of sodium; substantially as hereinbefore set
forth.
Dated this 25th day of M.- 1005
WM. P. THOMPSON & Co.,.
Agents.