Current-conducting Connection between Electrical Conductors.
Year: 1898

page_text: Date of Application, 19th Dec., 1898—Accepted, 27th May, 1899
COMPLETE SPECIFICATION.
Current-conducting Connection between Electrical Conductors.
I, VICTOR ISIDORE FEENY, of 60, Queen Victoria Street, London, E.C., Chartered
Patent Agent, do hereby declare the nature of this invention (a communication to
me from Allgemeine Elektricitäts-Gesellschaft, of Berlin, Germany) and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention relates to connections between those conductors termed first-
class and second-class conductors. The former class comprises metallic etc. con-
ductors and the latter consists of conductors of what are known as the electrolyte
type.
The present invention relates to the formation of a current-conducting connection
between two bodies, of which the one is a first-class conductor and the other a
fixed second-class conductor which does not act as such at an ordinary temperature
but at a higher temperature becomes a good conductor.
The methods of connection hitherto known relate only to the production of a
current-conducting connection between two second class conductors. They are not
suitable for the present purpose and must be replaced by a special process.
This process consists in surrounding the point of contact with a pulpy substance,
filling in interstices, (rifts, clefts, etc.) therewith, and subjecting the connection or
joint created in this way to the action of an incandescent body, whereby the
originally separated parts are most thoroughly blended together. The material
used for this cement-like pulp is a mixture of metallic oxides, which is combined
with a suitable intermediary or flux and in its composition is similar to the second-
class conductor. The intermediary may also be suitably replaced by the aqueous
solutions of the salts of oxides, which latter may be used alone for the production
of the connection, if the aqueous solutions be applied repeatedly to the points
of contact.
The necessary pulp for connecting first-class conductors with second class con-
ductors is composed substantially of the oxides of the rare earths, which are mixed
in the form of a powder, with water, a solution of gum, diluted starch paste, or
similar adhesive or binding material. As proportional percentages for mixing, I
give the following,
(1). 937 %
3
oxide of thorium.
% oxide of zirconium.
3 % oxide of yttrium.
3 % oxide of cerium.
20
(2). 80
(3). 95
(4). 70
10
20
5
(5). 70
30
eas
A
% oxide of thorium.
% oxide of yttrium.
% oxide of zirconium.
% oxide of yttrium.
% oxide of thorium.
% oxide of zirconium.
% oxide of yttrium.
% oxide of thorium.
oxide of yttrium.
3

page_text: The action of this novel connection of first class and second class conductors is
as follows,-
At a normal temperature, the connection between the first and second class
conductor is formed by a material which has almost exactly the same properties as
the latter and therefore does not conduct the current. As however, the second-class
conductor is prepared by previous heating or in some other way for the intended
circulating of current, the increase of temperature induced partly by the external
source of heat and partly by a very slight circulation of current will cause the con-
nection between the first class conductor and the second class conductor to act
almost equally as well as the latter.
The powder chosen is mixed with water, with very thin starch-paste, or with
thin gum-or dextrin-solution, to form the binding-material.
The prepared
mashed pulp thus formed has the consistency of kneaded clay or putty.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. A current conducting connection between first class conductors and fixed
second class conductors, by means of a material, which consists substantially of a
second class conductor.
2. As material for connecting the points of contact according to Claim 1, a
mixture of metallic oxides with an intermediary or with the aqueous solutions of
the salts of oxides or the employment of the latter alone as the connecting material,
substantially as described.
ecember 1898.
For the Applicant,
GEDGE & FEENY,
60, Queen Victoria Street, London, E.C.
Chartered Patent Agents.
Nineteenth day of December 1898.
For the Applicant,
GEDGE & FEENY,
60, Queen Victoria Street, London, E.C.
Chartered Patent Agents.