An Improved Solder for Use with Aluminium or Aluminium Alloys.
Year: 1893

page_text: Date of Application, 19th Sept., 1893
Complete Specification Left, 18th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
An Improved Solder for Use with Aluminium or Aluminium
Alloys.
I, REINHARD ISIDOR ROMAN, of 110 Cannon Street, in the City and County
of London, Chemist, do hereby declare the nature of this invention to he as
follows:-
My invention relates to an improved solder for use with aluminium and its alloys,
and it consists of the hereinafter described combination of metals, the object being
to attain a more perfect solder than those at present known.
The solders now known are defective for one or more of the following reasons:―
They do not last for any length of time, they are difficult in use, they are not of
good appearance, and they cannot stand any mechanical work, but all these defects
are overcome in my improved solder.
My improved solder consists of an alloy of aluminium, silver, nickel, tin, and
zinc in the following proportions :-
Silver
2 per cent.
Nickel
Aluminium 9
Tin
Zinc
5
"
"
"
"
34
"
"
50
"
"
With this solder no flux is necessary and any soldering iron or tool may be used,
but it is preferred that the iron or tool be of pure aluminium.
To solder two surfaces together the said surfaces should be thoroughly cleansed
first with azotic acid, secondly with caustic potash, and finally with clean cold
water. After the two surfaces have thus been cleansed they are coated with the
solder, brought lightly together, and heated by an ordinary soldering iron or tool,
a blow pipe, or a Bunsen lamp, till the required temperature is reached to make the
solder flow. Broadly the operation is the same as soldering silver and no special
knowledge or experience is required to carry
Dated this 19th day of September 1893.
ont.
An Improved Solder for Use with Aluminium or Aluminium
Alloys.
I, REINHARD ISIDOR ROMAN, of 110 Cannon Street, in the City and County
of London, Chemist, 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 :-
My invention relates to an improved solder for use with aluminium and its alloys,
and it consists of the hereinafter described combination of metals, the object being
to attain a more perfect solder than those at present known.

page_text: The solders now known are defective for one or more of the following reasons:-
They do not last for any length of time, they are difficult in use, they are not of
good appearance, and they cannot stand any mechanical work, but all these defects
are overcome in my improved solder.
My improved solder consists of an alloy of aluminium, silver, nickel, tin, and
zinc, in the following proportions
Silver
2 per cent.
Nickel
"
"
Aluminium 9
"
"
Tin
Zinc
34
"
"
50
"
"
With this solder no flux is necessary and any soldering iron or tool may be used,
but it is preferred that the iron or tool be of pure aluminium.
To solder two surfaces together the said surfaces should be thoroughly cleansed
first with azotic acid, secondly with caustic potash, and finally with clean cold
water. After the two surfaces have thus been cleansed they are coated with the
solder, brought lightly together, and heated by an ordinary soldering iron or tool,,..
a blow pipe, or a Bunsen lamp, till the required temperature is reached to make, the
solder flow. Broadly the operation is the same as soldering silver and no special,
knowledge or experience is required to carry it out.
I wish it to be particularly understood that I do not limit myself to the precise
proportions of the various metals .hereinbefore set forth, but that I hold myself
at liberty to make such changes and alterations as fairly fall within the spirit and
всоре of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed,. I declare that.what, I
claim is :-
The improved solder for use with aluminium and its alloys, consisting of silver,
nickle aluminium, tin and zinc, as set forth.
ROBERT E. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.