IMPROVEMENTS IN THE MODE OF INLAYING OR ORNAMENTING IN METALS AND OTHER MATERIALS
Year: 1858

page_text: LETTERS PATENT to Otto Von Corvin, of Alfred Place, Alexander Square,
Brompton, in the County of Middlesex, Gentleman, for the Invention of
"IMPROVEMENTS IN THE MODE OF INLAYING OR ORNAMENTING IN METALS AND
OTHER MATERIALS."
Sealed the 16th July 1858, and dated the 19th January 1858.
PROVISIONAL SPECIFICATION left by the said Otto Von Corvin, at the
Office of the Commissioners of Patents, with his Petition, on the 19th
January 1858.
I, OTTO VON CORVIN, of Alfred Place, Alexander Square, Brompton, in the
5 County of Middlesex, Gentleman, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MODE OF INLAYING OR ORNAMENTING IN
METALS AND OTHER MATERIALS," to be as follows:-
My improvements in inlaying metals and other materials relate to a means
of inlaying by means of galvanoplasty, or by using metal in a molten state;
and compressing it in that state into the interstices into which it is to be
inlaid.
In effecting this purpose by the aid of galvanoplasty, I first stamp out or
otherwise form ornaments in metal or other material that are to be inlaid, I
then arrange such ornaments on a plate of metal with the face of the orna-

page_text: ments towards such plate, and adhering thereto by any suitable adhesive
material; I now place the plate sustaining the ornaments in the bath of a
galvanic battery, and deposit. over the entire surface a coating of copper or
other metal, which deposits over the entire surface of the metal plate, and
envelopes the ornaments before mentioned. After a sufficient thickness of the
copper is deposited, it is detached from the metal plate together with the
ornaments, which, when inverted, form one uniform surface. This surface
may then be polished and engraved, or further ornamented, if desired. If
the back parts of such ornaments are not to be covered by the electrical
deposit, they are left unmetallized, which effects considerable saving in
the metal deposited, if such surfaces are large; depositing over the entire
surface, however, secures the inlaid materials more firmly. Instead of the
deposited metal enveloping the ornament, any surface may be recessed to receive
the ornament, and the same deposited therein by the aid of galvanoplasty.
Instead of pressing or cutting out the ornament to be inlaid, I sometimes
form it by electrical deposit, for which purpose I coat a sheet of copper with
wax, then draw the ornament in the wax, and thereby lay bare the copper
where the drawing occurs; the coated sheet is then submitted to the deposit
of silver or other metal by electricity, which adheres slightly to the copper
plate; I now wash off the wax and then proceed to deposit a surface of metal
on the plate sustaining the raised ornament in silver, which becomes inlaid in
the surface deposited; this, together with the silver, is removed from the
It is afterwards
original plate after it has acquired sufficient substance.
polished and further ornamented if desired. In order to strengthen these
deposited surfaces, I apply a backing of metal, gutta percha, papier maché, or
other suitable material.
In inlaying metals or alloys in a molten state, I prepare the ornamental
forms by cutting through a substance of metal, wood, or other material, and
afterwards placing the molten metal therein, and after it is partially cooled, I
place the whole between two plates, and subject the same to great pressure;
this pressure causes the interstices of the ornament to be entirely filled, which
may afterwards be polished or further ornamented by electrical deposit or
otherwise.
In thus inlaying metals or alloys, care must be taken that the heat of the
metal or alloy used is such that no injury will result to the material receiving
the inlay.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Otto Von Corvin in the Great Seal Patent Office on the 19th
July 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, OTTO
VON CORVIN, of Alfred Place, Alexander Square, Brompton, in the County of
Middlesex, Gentleman, send greeting.
WHEREAS Her most Excellent. Majesty Queen. Victoria, by Her Letters.
Patent, bearing date the Nineteenth day of January, in the year of our Lord.
One thousand eight hundred and fifty-eight, in the twenty-first year of Her
reign, did, for Herself, Her. heirs and successors, give and grant unto,
me, the said Otto Von Corvin, Her special licence that I, the said Otto,
Von Corvin, my executors, administrators, and assigns, or such others as I,
the said Otto Von Corvin, my executors, administrators, and assigns, should,
at any time agree with,, and. no others, from time to time and at all times.
thereafter during the term therein expressed, should and lawfully might.
maké, use, exercise, and vend, within the United Kingdom of Great Britain,
and. Ireland,. the Channel Islands, and Isle of Man, an Invention, for "IM-
PROVEMENTS IN THE MODE OF INLAYING OR ORNAMENTING IN METALS AND OTHER,
MATERIALS," upon the condition (amongst others) that I, the said Otto Von
Corvin, my executors, or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of
the said Letters Patent.
NOW KNOW YE, that I, the said Otto Von Corvin, do hereby declare.
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the.
following statement, that is to say:-
If
My improvements in inlaying metals and other materials relate to a means.
of inlaying by means of galvanoplasty, or by using metal in a molten state, and
compressing it in that state into the interstices into which it is to be inlaid...
In effecting this purpose by the aid of galvanoplasty, I first stamp out or:
otherwise form ornaments in metal or other material that are to be inlaid.
the materials to be inlaid are nonconducting substances, I metallize them in
the ordinary manner; I then arrange such ornaments on a plate of metal with
the face of the ornaments towards such plate, and cause them to adhere
thereto by any suitable adhesive material. I now place this plate sustaining the..

page_text: ornaments in the bath of a galvanic battery, and deposit over the entire surface
a coating of copper or other metal which deposits over the entire surface of
the metal plate, and envelopes the ornaments before mentioned.
After a
sufficient thickness of the copper is deposited, it is detached from the metal
plate together with the ornaments, which when inverted, form one uniform
surface; this surface may then be polished and engraved, or further orna-
mented if desired. If the back part of such ornaments are not to be covered
by the electrical deposit, they are left unmettallized, which effects considerable
saving in the metal deposited if such surfaces are large; depositing over the
entire surface, however, secures the inlaid materials more firmly. Instead
of the metal plate on which the metal is to be deposited by galvanoplasty,
any surface may be prepared to receive the ornaments and the deposit by
metallizing it. Instead of pressing or cutting out the ornament to be inlaid,
I sometimes form it by electrical deposit, for which purpose I coat a sheet of
copper with wax, then draw the ornament in the wax, and thereby lay bare:
the copper where the drawing occurs. The coated sheet is then submitted to
the deposit of silver or other metal by electricity, which adheres slightly to
the copper plate; I now wash off the wax, and then proceed to deposit a
surface of metal on the plate sustaining the deposited and raised ornament in
silver which becomes inlaid in the new surface deposited; this, together with
the silver, is removed from the original plate after it has acquired sufficient
substance in the galvanic bath; it is afterwards polished and further orna-
mented, if desired.
In order to strengthen the deposited surfaces, I apply a backing of metal,
gutter percha, papier maché or other suitable material. In inlaying metals or
alloys in a molten state, I prepare the ornamental forms by perforating or
cutting through a substance of metal, wood, or other material, and afterwards
pouring the molten metal therein; after it is partially cooled, I place the
whole between two plates, and subject the same to pressure. This pressure
causes the interstices of the ornament to be entirely filled, which may after-
wards be polished or further ornamented by electrical deposits or otherwise.
In thus inlaying metals or alloys care must be taken that the heat of the
metal or alloy used is such that no injury will result to the material receiving
the inlay.
Having described the nature of my Invention, and the manner of performing
the same, I declare that what I claim as my Invention to be secured by the
herein-before in part recited Letters Patent is,-
First, inlaying or ornamenting surfaces by the agency of galvanoplasty, as
herein-before described.

page_text: Secondly, I claim inlaying or ornamenting by introducing and compressing
molten metal or alloys of metal into spaces, or interstices for its reception,
as herein-before described.
In witness whereof, I, the said Otto Von Corvin, have hereunto set
my hand and seal, this Seventeeth day of July, in the year of our
Lord One thousand eight hundred and fifty-eight.
Witness,
OTTO VON CORVIN. (L.s.)
WILLIAM CLARK, Patent Agent.
53, Chancery Lane, London.