CERTAIN IMPROVE- MENTS IN ELECTRO-VOLTAIC APPARATUS
Year: 1853

page_text: LETTERS PATENT to Christian Radunsky, of Cockspur Street, in
the County of Middlesex, for the Invention of "CERTAIN IMPROVE-
MENTS IN ELECTRO-VOLTAIC APPARATUS."-A communication.
Sealed the 17th June 1853, and dated the 2nd May 1858.
PROVISIONAL SPECIFICATION left by the said Christian Radunsky
at the Office of the Commissioners of Patents, with his Petition,
on the 2nd May 1858.
I, CHRISTIAN RADUNSKY, do hereby declare the nature of the said
Invention for CERTAIN IMPROVEMENTS IN ELECTRO-VOLTAIC APPARATUS " to
be as follows:-
This Invention consists in certain new arrangements and combina-
tions of parts, to be employed in the manufacture of chains, such as are
applied to the human body, and known and distinguished as electro-
voltaic chains, the several parts thereof being arranged and. combined

page_text: according to this Invention, in the manner exhibited by the illustrative
Drawing hereunto annexed; and it is the new combination of such
parts, and the general shape thereof, which constitutes this Invention ;
that is to say, instead of making the links in the manner hitherto
practised, which has been found objectionable from their bulk, by
this Invention the links are made flat, and therefore occupy very
little space, are more comfortable to the wearer, and present a larger
surface in less space than other electric chains, and consequently
possess a stronger and more active electric power, with longer duration
in the emission of the electric fluid.
Another feature in this Invention consists in forming the links flat
and thin, and connecting them together with leather, so that a chain
thus formed will lie flat upon the skin of the wearer; moreover, ac-
cording to this Invention, the use of insulating pins and solders is
entirely dispensed with. And I form the links of chains of a very
spongy or, porous but strong substance, such as leather, and two
metallic plates, which are conductors of electricity, such as copper and
zinc and take two of such plates of the size- and shape I wish the
links to be, such plates being formed with openings, to facilitate the
absorption of the liquid in which the chain is to be immersed; these
"plates are folded in such a way as to fit into each other, and leave an
equal space all round their contours. These parts are connected to a
piece of leather by metallic pins, passed through the same.
Another and more simple form of construction of electric chain is
exhibited at Figs. 17; and 9, of the annexed Drawings, and consists in
placing or stringing and fastening the before-mentioned plates upon a
ribbon, and in placing and disposing the two metals in such manner as
that the contact is alternately united and separated; for example, they
are united together by pins or rings, and are separated by the ribbon;
and by these means an electric ribbon instead of a chain is obtained,
which, when dipped in acid generates and discharges electricity with
great power. ..
But in order to explain and ascertain the nature of this Invention
more clearly, reference must be had to the numeral figures and letters
of reference marked therein respectively, as follows:

page_text: DESCRIPTION OF THE DRAWING.
Figs. 1, 2, 3, 4, 5, 6, 7, 8, exhibit different forms of constructions or
patterns of chains, constructed and arranged according to this Inven-
tion, so as to present a large-surface in a small space. A, A, mark
pieces of copper, and B, B, pieces of zinc, of the desired shape.
Figs. 11, 11, exhibit such said plates as they would appear when
folded or doubled, ready to be attached to the pieces of leather C, C ;
one of such pieces is shewn detached, at Figs. 12. D, D, mark rings,
which serve to connect the links of the chain together, the copper and
zine plates being connected to the leather by pins a, passed through
the same, as before mentioned. At Figs. 18, 14, 15, E, F, G, H, I, K,
are buckles and clasps employed in constructing the electric ribbon
chain before mentioned and exhibited. Fig. 16, are separate parts
of the chain exhibited at Fig. 8; and Fig. 17, are separate parts of
Fig. 9. At each of the foregoing Figures, the same letters of reference
are employed to denote corresponding parts, in so far as such parts
appear or can be seen at each of the Figures respectively. And it is
this new and peculiar mode and principle of construction which con-
stitutes this Invention, and by which I am enabled to obviate the the
objections attending the electro-voltaic chains as hitherto constructed,
as herein-before particularly described, set forth, and represented by
the illustrative Drawing hereunto annexed.