A New or Improved Solder for Soldering Aluminium and Alloys of Aluminium.
Year: 1894

page_text: Date of Application, 13th Ane AQUA
Complete Specification Left, 1st Jan., 1895-Accepted, 9th Feb., 1895
Complete Specification Left, 1st Jan., 1895-Accepted, 9th Feb., 1895
PROVISIONAL SPECIFICATION.
A New or Improved Solder for Soldering Aluminium and Alloys of
Aluminium.
I SAMUEL TAYLOR of Nos. 72 and 73 Lionel Street, Birmingham in the
County of Warwick Manufacturer of Plated Metals do hereby declare the nature
of this invention to be as follows:-
My invention consists of a new or improved solder for soldering aluminium and
alloys of aluminium, having the composition or substantially the composition and
made as hereinafter described.
My new or improved solder is composed of twelve parts by weight of silver;
four parts by weight of copper; four parts by weight of aluminium; eight parts by
weight of zine; two parts by weight of lead; and seventy parts by weight of tin
the several metals being melted together and made into a solder in the following
manner.
The silver is first put in the crucible and melted and the copper is added to the
melted silver the two melted metals being stirred with a steel rod so as to
thoroughly mix them and form them into an alloy. I then add to and melt with
the alloy of silver and copper in the crucible, aluminium, zinc and lead in the
proportions and in the order herein before given, the alloy being thoroughly stirred
until it is perfectly uniform in composition throughout. This stirring should be
continued from five to ten minutes. I then add the tin, repeating the stirring
operation. The several metals are thus melted and thoroughly alloyed together
and the solder is at once ready for pouring. No flux is required as the aluminium
acts as a flux. The melted solder is poured from the crucible into a clean and
bright ingot mould which has been previously rubbed with a little mutton fat. The
solder thus made is used in the ordinary way for soldering aluminium and alloys of
aluminium. Although I have described the proportions of the metals which I
prefer to use to form my improved solder, and which proportions I have found to
answer well in practice yet I wish it to be understood that I do not limit myself to
the exact proportious described as the proportions may be varied within moderate
limits without affecting the quality of the solder made.
Dated this 13th day of April 1894.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
A New or Improved Solder for Soldering Aluminium and Alloys of
Aluminium.
I SAMUEL TAYLOR, of Nos. 72 and 73 Lionel Street, Birmingham, in the
County of Warwick, Manufacturer of Plated Metals, do hereby declare the nature
of my invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
In the manufacture of articles of aluminium there is great difficulty in effecting
D017

page_text: the junction of parts by the use of any of the solders in ordinary use, and the
same difficulty arises in a less degree in the manufacture of articles of alloys of
aluminium.
My invention has for its object to remedy these difficulties and consists of a new
or improved solder for soldering aluminium and alloys of aluminium the said solder
having the composition or substantially' the composition and made as hereinafter
described.
By the use of solder made according to my invention the parts of articles made
of aluminium or alloys of aluminium may be readily and efficiently soldered
together.
My new or improved solder is composed of 12 parts by weight of silver; 4 parts
by weight of copper; 4 parts by weight of aluminium; 8 parts by weight of zinc;
12 parts by weight of lead and 60 parts by weight of tin, the several metals being
melted together and made into a solder in the following manner.
The lead may
be replaced wholly or in part by cadmium, that is to say, 12 parts by weight of
cadmium or 6 parts by weight of lead and 6 parts by weight of cadmium may form
part of the composition of the solder in place of the lead described.
The silver is first put in the melting crucible, preferably a plumbago crucible,
and melted and the copper is added to the melted silver the two melted metals
being stirred with a steel rod so as to thoroughly mix them and form them into un
alloy. Stirring during one minute suffices for this purpose. I then add to and
melt with the alloy of silver and copper in the crucible, aluminium, zinc and lead
or cadmium in the proportions and in the order hereinbefore given, or the said
metals may be added at the same time. The alloy is thoroughly stirred until it is
perfectly uniform in composition throughout. A stirring of two minutes generally
suffices for this purpose. I then add the tiu repeating the stirring operation.
Although I prefer to add the tin last yet it may be added with the aluminium, zinc
and lead with the same or nearly the same effect. The several metals are thus
melted and thoroughly alloyed together and the solder is at once ready for pouring.
No flux is required as the aluminium acts as a flux.
The melted solder is poured from the crucible into ingot moulds the interior of
which has been previously rubbed with mutton fat or preferably coated with
whiting. In the latter case I apply the whiting by mixing it with water to the
consistence of cream. The mixture is applied by means of a brush.
The cast ingot is sawn into sticks of a convenient size for use, or made into
grains for use.
The solder thus made is used in the ordinary way for soldering aluminium and
alloys of aluminium.
Although I have described the proportions of the metals which I prefer to use
to form my improved solder, and which proportions I have found to answer well in
practice yet I wish it to be understood that I do not limit myself to the exact
proportions described as the proportions may be varied within moderate limits
without affecting the quality of the solder made.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that I claim
as my invention;-
A new or improved solder for soldering aluminium and alloys of aluminium
having the composition substantially as hereinbefore described.
Dnted the Think Grot dow of Dassobor 1201
SAMUEL TAYLOR.