A Solder for Aluminium.
Year: 1892

page_text: Date of Application, 22nd Mar., 1892
Complete Specification Left, 12th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
A Solder for Aluminium.
I REUBEN HEATON of 161 to 165 Hospital Street Birmingham Salmon and
Trout Reel Manufacturer do hereby declare the nature of this invention to be as
follows:-
The mixture consists of 45 parts of tin and 11 parts of aluminium, the method
of soldering is to blow the articles to be soldered, hot, with a blowpipe the solder
to be then applied and to be run along the joint with a hot brass, no flux is
required.
Articles to be soldered must be scraped and well cleaned.
REUBEN HEATON.
COMPLETE SPECIFICATION.
A Solder for Aluminium.
1, REUBEN HEATON of Nos. 161 to 165 Hospital Street, Birmingham, Salmon
and Trout Reel Manufacturer 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 :-
My invention of a solder for soldering aluminium consists of an alloy of
aluminium and tin the said alloy being made and used in the manner hereinafter
described.
In making the said alloy I take aluminium and tin in the ratio of forty-five
parts by weight of tin to eleven parts by weight of aluminium.
I melt the aluminium and tin in separate ladles or melting pots and pour the
melted metal together. No flux is required in the melting and mixing of the
melted metals. They immediately alloy and the alloy may be cast into ingots in
ordinary ingot moulds. The cast ingots may be rolled into bars or strips of any
desired size. I prefer for ordinary purposes, that is, for soldering articles of
moderate size such for example as drinking cups, to employ rolled strips of from a
quarter of an inch to half an inch broad and of about a quarter of an inch in
thickness. In using the said solder I cut the rolled strips described into short
pieces, say, of about a quarter of an inch in length. I place the aluminium article
the edges of which are to be joined by soldering on a support preferably of
fragments of coke or other bad conductor of heat, the edges to be soldered having
been well cleaned by scraping or otherwise. The article is so supported that the
edges to be joined are uppermost or at the highest level and horizontal or nearly
horizontal. A heap of the small pieces of solder is placed within convenient
reach of the operator's hand.
By means of a gas or other blow pipe I heat the edges to be joined and at the
same time I beat in the blow-pipe flame the end of a piece of brass wire. When
the edges to be joined have been raised to a red heat the heated end of the brass
wire is applied to one of the small pieces of solder to which it attaches itself.
The said piece of solder is then applied by means. of the wire to the two
aluminium edges to be joined. The solder is melted by the flame and by means of
the brass wire the melted solder is drawn along the heated edges to be joined.
The said melted solder alloys itself with the aluminium edges and connects the
said edges together.
If necessary a second or third piece of solder is picked up by the piece of

page_text: heated brass wire and applied to the said edges. By moving the said wire
backwards and forwards over the said edges the heat of which is maintained by
the blow pipe, the solder may be uniformly distributed over the junction.
In soldering with my alloy by the process described no flux need be used.
The description I have given of my invention as applied to the soldering of a
drinking vessel or other small article is I believe sufficient to enable a competent
workman accustomed to the soldering of larger articles to apply my invention
successfully to the soldering of articles of aluminium of any size."
Although I have described the proportions of aluminium and tin which I prefer
and which I have found in practice to answer well, I wish it to be understood that
I do not confine myself to the said proportions as they may be varied within
considerable limits without materially affecting the suitability of the alloy for
soldering aluminium.
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 of "A solder for aluminium " :-
An alloy of aluminium and tin having the composition and being made and used
substantially as hereinbefore described.
Dated this Ninth day of December 1892.
REUBEN HEATON.