AN IMPROVEMENT IN CYLINDERS USED IN PRINTING CALICOES AND OTHER TEXTILE FABRICS
Year: 1861

page_text: LETTERS PATENT to Dudley Charles Le Souëf, of Twickenham, in the
County of Middlesex, England, for the Invention of "AN IMPROVEMENT
IN CYLINDERS USED IN PRINTING CALICOES AND OTHER TEXTILE FABRICS."-
A communication from abroad by Henry Kündig, George Bertschy, and
Joseph Porres de Portheim of Prague in Austria
PROVISIONAL SPECIFICATION left by the said Dudley Charles Le Souëf,
at the Office of the Commissioners of Patents, with his Petition, on the
20th December 1861.
I, DUDLEY CHARLES LE SOUEF, of Twickenham, in the County of Middle-
sex, England, do hereby declare the nature of the said Invention for "AN
IMPROVEMENT IN CYLINDERS USED IN PRINTING CALICOES AND OTHER TEXTILE
FABRICS," (communicated to me from abroad by Henry Kündig, George
Bertschy, and Joseph Porges de Portheim, of Prague, in Austria), to be as
follows:-
A cast-iron cylinder is coated with copper by means of electricity, and when
engraved is used for the purpose of printing calicoes and other textile fabrics.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Dudley Charles Le Souèf in the Great Seal Patent Office
on the 20th June 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DUDLEY
CHARLES LE SOUEF, of Twickenham, in the County of Middlesex, England,
send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of December, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Dudley Charles Le Souèf, Her special licence that I, the said Dudley
Charles Le Souèf, my executors, administrators, and assigns, or such others as
I, the said Dudley Charles Le Souèf, 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 make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVEMENT IN CYLINDERS USED IN PRINTING CALICOES AND OTHER TEXTILE
FABRICS," (communicated to me from abroad by Henry Kündig, George
Bertschy, and Joseph Porges de Portheim, of Prague, in Austria), upon the
condition (amongst others) that I, the said Dudley Charles Le Souèf, 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
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.
was to be
NOW KNOW YE, that I, the said Dudley Charles Le Souèf, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :-
This Invention consists in coating or covering cast-iron cylinders with copper
by means of any of the well-known processes of electro-plating iron with
copper. The copper surface thus produced on the iron cylinder or roller is
then engraved with the desired pattern or design, and used in place of the
solid copper rollers hitherto employed for printing calico and other textile
fabrics.
The advantages of these rollers in addition to the great economy of production,
consist in the purity of the copper, which renders it particularly well adapted
for engraving and etching, the design being more permanent than on the
less perfect surface of the ordinary copper rollers. When the rollers are
turned for the purpose of preparing them for a new design, they can be
maintained at exactly the same diameter by giving them a new coating of
copper at a trifling expense.
What I claim as the Invention to be secured to me by the herein-before

page_text: in part recited Letters Patent is, the use of cast-iron rollers with a copper
surface for the purpose of printing calico and other textile fabrics as herein-
before described.
In witness whereof, I, the said Dudley Charles Le Souèf, have hereunto
set my hand and seal, this Twentieth day of June, in the year of
our Lord One thousand eight hundred and sixty-two.
DUDLEY C. LE SOUÈF. (L.S.)