IMPROVEMENTS IN THE APPLICATION OF CERTAIN DESIGNS OBTAINED ON METALLIC SURFACES BY PHOTOGRAPHIC AND OTHER AGENCY
Year: 1855

page_text: LETTERS PATENT to Paul Pretsch, of Islington, in the County of
Middlesex, Photographer, for the Invention of "IMPROVEMENTS IN THE
APPLICATION OF CERTAIN DESIGNS OBTAINED ON METALLIC SURFACES BY
PHOTOGRAPHIC AND OTHER AGENCY."
Sealed the 5th October 1855, and dated the 11th August 1855.
PROVISIONAL SPECIFICATION left by the said Paul Pretsch at the
Office of the Commissioners of Patents, with his Petition, on the
11th August 1855.
I, PAUL PRETSCH, of Islington, in the County of Middlesex, Photographer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
APPLICATION OF CERTAIN DESIGNS OBTAINED ON METALLIC SURFACES BY PHOTOGRAPHIC
AND OTHER AGENCY" to be as follows:-
Having obtained Royal Letters Patent, sealed 9th November 1854, for
improvements in producing copper and other plates for printing," my present
Invention refers to certain further improvements in the application of my said
patented process.
I have in the Specification of my said Patent described the methods I adopt
in procuring either raised or sunk surfaces on plates of copper & other metals
or materials from designs obtained thereon by the photographic process.
I now employ plates engraved by 'my said process for the formation of
cylinders to be employed in calico printing, embossing, and other purposes; or

page_text: cylinders may be formed directly by the electrotype process by means of suit-
able tubular or other arrangements of my engraved plates, and strengthened
by the insertion of metal rollers, cast metal, and similar methods.
When metallic plates on manufactured articles have to be ornamented with
engraving according to my said process, the same can be variously applied to
flat, curved, & other surfaces, and when required may be electrotyped, or may
be inlaid with metals or other materials.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Paul Pretsch in the Great Seal Patent Office on the
8th February 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PAUL
PRETSCH, of Islington, in the County of Middlesex, Photographer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of August, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me; the
said Paul Pretsch, Her special licence that I, the said Paul Pretsch, my
executors, administrators, and assigns, or such others as I, the said Paul
Pretsch, 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 "IMPROVEMENTS IN THE
APPLICATION OF CERTAIN DESIGNS OBTAINED ON METALLIC SURPACES BY PHOTOGRAPHIC
AND OTHER AGENCY," upon the condition (amongst others) that I, the said Paul
Pretsch, 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 Paul Pretsch, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement :-

page_text: Having obtained Royal Letters Patent, sealed 9th November 1854, for
"improvements in producing copper and other plates for printing," my present
Invention refers to certain further improvements in the application of my said
patented process.
I have in the Specification of my said Patent fully described the methods I
adopt in producing raised and sunk surfaces on plates of copper and other
metals or materials with designs obtained thereon by my said process. I
now employ copper or other suitable plates engraved by my said process
for the formation of cylinders to be employed in calico and similar printing,
embossing, and other purposes; or cylinders may be formed directly by the
electrotype process by means of suitable tubular or other arrangements of my
engraved plates to serve as moulds, and the cylinders produced therefrom
may be strengthened by the insertion of metal rollers, cast metal, and similar
methods.
When it is desired to ornament manufactured articles with engraving
according to my said improved process, the same can be variously applied to
flat, curved, and other surfaces, and when required the engraved surfaces
may be covered with gold, silver, or other metals or materials, or may be
inlaid with metals or other materials.
Having thus fully detailed the nature of my said improvements, and how
they are to be carried into effect, I would here observe that the same may be
subjected to many modifications without departing from the principle of my
said Invention; I therefore do not limit myself to any particular metals or
materials applicable for the purposes described, or to the dimensions, or any
precise engraving or ornamenting of the same; but what I do claim as my
Invention is, namely, the novel mode of obtaining cylindrical and other
engraved and ornamented surfaces, as described.
In witness whereof, I, the said Paul Pretsch, have hereunto set my
hand and seal, this Seventh day of February, in the year of our Lord
1856
PAUL PRETSCH. (L.S.)