IMPROVE- MENTS IN THE MANUFACTURE OF ORNAMENTAL PLACARDS, SHOW CARDS, LABLES, MAPS, AND SUCH LIKE ARTICLES
Year: 1869

page_text: LETTERS PATENT to Adam Cyrus Engert, of Nos. 31 and 32, Tabernacle
Row, in the County of Middlesex, for the Invention of "IMPROVE-
MENTS IN THE MANUFACTURE OF ORNAMENTAL PLACARDS, SHOW CARDS, LABLES,
MAPS, AND SUCH LIKE ARTICLES."
Sealed the 18th January 1870, and dated the 26th November 1869.
PROVISIONAL SPECIFICATION left by the said Adam Cyrus Engert at
the Office of the Commissioners of Patents, with his Petition, on
the 26th November 1869.
I, ADAM OYRUS ENGERT, of Nos. 31 and 32, Tabernacle Row, in the
County of Middlesex, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF ORNAMENTAL PLACARDS, SHOW CARDS,
LABLES, MAPS, AND SUCH LIKE ARTICLES," to be as follows:-
This Invention has for its object improvements in the manufacture of
ornamental placards, show cards, labels, maps, and such like articles.
I take an enamelled print, that is to say, paper coated with white or
other pigment composition to which a brilliant and polished surface has

page_text: been given, and on which a device has been printed. Such prints from
the nature of the paper employed are very sharp and solid, but without
preparation are not well suited for placards, show cards, lables, maps,
and such like articles, being very fragile, easily soiled, and at once
losing their lustre on contact with water.
I therefore proceed in the first place to strengthen the print by
attaching it to a backing of calico or other woven fabric or strong paper,
or other suitable material; this cannot however be successfully done in
the same way as other prints are mounted, for the damping the back
of the paper with water as is now practised in mounting prints would
destroy the surface. I apply to the back of the print in place of water a
solution of gum or glue or such like substance which will prevent the
penetration of the moisture to the face of the print, and in order that
the said gum or glue or such like substance may not in drying become
stiff, which would render it liable to crack if the print should be rolled
up or bent, I mix treacle or sugar or such like substance with the gum,
glue, or other substance in order to soften it. I use paste or other
suitable cement to attach the print to the backing of calico or other
material. Afterwards I apply to the enamelled surface of the print
carefully by means of a soft brush a coating of varnish. The varnish
dries with a very brilliant surface in consequence of the smoothness and
solidity of the face on which it is laid. The varnish is applied in a
warm atmosphere or whilst the paper is laid on a heated plate. The
varnish is applied direct upon the enamelled surface of the paper, that
is to say, the surface is not prepared with size as heretofore, when
varnishing paper to give brilliancy of surface, one coat only of varnish
must be used, whereas heretofore it has been usual to apply several
coats.
I have discovered that it is advantageous to attach the print to the
backing previous to varnishing it, otherwise the varnish surface becomes
cracked and injured in the process of mounting.
By varnishing on an enamelled surface of paper in the manner above
described great brilliancy and hardness of surface are obtained. It is
not essential that the print should in all cases be mounted, although I
prefer that it should be so..

page_text: DEECIFICATION m pursuance of the conditions of the Letters ratent,
filed by the said Adam Cyrus Engert in the Great Seal Patent Office
on the 26th May 1870.
TO ALL TO WHOM THESE PRESENTS. SHALL COME, I, ADAM
CYRUS ENGERT, of Nos. 31 and 32, Tabernacle Row, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of November, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
thirty-third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Adam Cyrus Engert, Her special
licence, that I, the said Adam Cyrus Engert, my executors, adminis-
trators, and assigns, or such others as I, the said Adam Cyrus Engert,
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 MANUFACTURE OF ORNAMENTAL PLACARDS, SHOW CARDS,
LABLES, MAPS, AND SUCH LIKE ARTICLES," upon the condition (amongst
others) that I, the said Adam Cyrus Engert, my executors or ad-
ministrators, 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. Adam Cyrus Engert, 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 thereof; that is to say :-
This Invention has for its object improvements in the manufacture of
ornamental placards, show cards. lables: mans, and such like articles.

page_text: I take an enamelled print, that is to say, paper coated with white or
other pigment composition to which a brilliant and polished surface has
been given and on which a device has been printed. Such prints from
the nature of the paper employed are very sharp and solid, but without
preparation are not well suited for placards, show cards, labels, maps, and
such like articles, being very fragile, easily soiled, and at once losing
their lustre on contact with water.
I therefore proceed in the first place to strengthen the print by
attaching it to a backing of calico or other woven fabric or strong paper
or other suitable material; this cannot however be successfully done in
the same way as other prints are mounted, for the damping the back of
the paper with water as is now practised in mounting prints would
destroy the surface. I apply to the back of the print in place of water a
solution of gum or glue or such like substance which will prevent the
penetration of the moisture to the face of the print, and in order that
the said gum or glue or such like substance may not in drying become
stiff, which would render it liable to crack if the print should be rolled
up or bent, I mix treacle or sugar or such like substance with the gum,
glue, or other substance in order to soften it. I use paste or other
suitable cement to attach the print to the backing of calico or other
material. Afterwards I apply to the enamelled surface of the print
carefully by means of a soft brush a coating of varnish. The varnish
dries with a very brilliant surface in consequence of the smoothness and
solidity of the face on which it is laid. The varnish is applied in a
warm atmosphere or whilst the paper is laid on a heated plate. The
varnish is applied direct upon the enamelled surface of the paper, that
is to say, the surface is not prepared with size as heretofore when
varnishing paper to give brilliancy of surface, one coat only of varnish
must be used, whereas heretofore it has been usual to apply several
coats.

page_text: not essential that the print should in all cases be mounted, although I
prefer that it should be so.
In witness whereof, I, the said Adam Cyrus Engert, have hereunto
set my hand and seal, this Fifth day of May, in the year of our
Lord One thousand eight hundred and seventy.