AN IMPROVED MODE OF APPLYING PHOTOGRAPHIC PAPER PICTURES TO GLASS
Year: 1865

page_text: LETTERS PATENT to Anna Josephine Wright, of No. 46, Rutland Square
(West), in the City of Dublin, for the Invention of "AN IMPROVED
MODE OF APPLYING PHOTOGRAPHIC PAPER PICTURES TO GLASS."
Sealed the 29th May 1866, and dated the 2nd December 1865.
PROVISIONAL SPECIFICATION left by the said Anna Josephine Wright
at the Office of the Commissioners of Patents, with her Petition, on the
2nd December 1865.
I, ANNA JOSEPHINE WRIGHT, of No. 46, Rutland Square (West), in the
City of Dublin, do hereby declare the nature of the said Invention for "AN
IMPROVED MODE OF APPLYING PHOTOGRAPHIC PAPER PICTURES TO GLASS," to be as
follows:-
I take a photographic picture on paper, and cover its face with a varnish
consisting of Canada balsam thinned with spirits of turpentine, taking care
that the varnish is spread evenly over the entire surface of the picture. It is
then allowed to dry thoroughly, and when dry, I attach the face of the picture
by means of a thick solution of gum arabic to the glass to be ornamented. I
now allow the gum to dry thoroughly, and when dry I coat the back of the
picture with the before-mentioned Canada balsam varnish, taking care as before
that it is spread evenly over the entire surface. This coating of varnish is
also allowed to dry, after which, the picture is examined to see if it is perfectly
transparent, if not perfectly transparent the Canada balsam varnish is again

page_text: applied. I now by careful washing with spirits of turpentine, remove as much
of the Canada balsam varnish as enables me to get to the surface of the paper
of the picture. If it be desired to remove the paper, leaving only the photo-
graphic picture attached to the glass, I do so by applying evenly over the
entire surface of the paper a soft rubber covered with the finest description of
glass paper, which rapidly removes most of the paper; the remaining portion
I now take away by very carefully rubbing it away with a sponge or piece of
soft silk moistened with water. If it be desired to have the picture coloured,
it may now be painted with oil or water colours in the ordinary way. The
picture is again varnished with the Canada balsam varnish, and when dry the
operation is complete.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Anna Josephine Wright in the Great Seal Patent Office on
the 2nd June 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANNA
JOSEPHINE WRIGHT, of No. 46, Rutland Square (West), in the City of Dublin,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of December, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Anna Josephine Wright, Her special licence that I, the said Anna
Josephine Wright, my executors, administrators, and assigns, or such others
as I, the said Anna Josephine Wright, 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 "Ax IMPROVED MODE OF APPLYING PHOTOGRAPHIC PAPER
PICTURES TO GLASS," upon the condition (amongst others) that I, the said
Anna Josephine Wright, 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.

page_text: NOW KNOW YE, that I, the said Anna Josephine Wright, 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):-
My Invention has for its object the production of transparencies from
photographic pictures on paper. For this purpose I take a photographic picture
on paper and cover its face with a varnish consisting of Canada balsam thinned
with spirits of turpentine, naptha, or spirits of wine (of which I prefer. spirits
of turpentine) taking care that the varnish is spread evenly over the entire
surface of the picture. It is then allowed to dry thoroughly, and. when dry I
attach the face of the picture by means of a thick solution of gum arabic to
'the glass to be ornamented. The gum is allowed to dry thoroughly, after
'which the back of the picture is coated with the above-mentioned Canada
balsam varnish, taking care, as before, that the varnish is spread evenly over
the entire surface. This last-mentioned coating of varnish is allowed.to.dry
thoroughly in like manner as the former was, after which the picture is
carefully examined, to see if it is sufficiently transparent. If the picture is.not
sufficiently transparent, the Canada balsam varnish is again and again applied
and allowed try after each application, as before described, until it becomes
transparent the picture has been colored before being operated upon, or
if it is to riain uncoloured, and the paper of the picture is not to be removed,
the process is now complete; but if the picture is to be coloured, or if the
paper of the picture is to be removed, the back of the picture must now.be
carefully washed with spirits of turpentine (or the thinning material used in
the varnish) to remove as much of the Canada balsam varnish as is necessary
to expose the surface of the paper of the picture. If it be desired to remove
the paper leaving only the photographic picture attached to the glass, this
may be done by applying evenly over the entire surface of the paper a soft
rubber covered with the finest description of glass paper, which rapidly removes
most of the paper; the remaining portion must be removed by very carefully
rubbing it away with a very soft sponge, or a piece of very soft silk moistened
with water; after which the picture is allowed to dry thoroughly. If the
picture is not to be coloured it must, when quite dry, be again varnished with
the Canada balsam varnish, and when this last application of the varnish is
dry, the operation is complete. If it be desired to have the picture coloured,
transparent colours (whether oil or water colours be used) must be applied in
the ordinary way before the final application of the Canada balsam varnish,
and the colours may be applied equally well, whether the paper has been
removed as above described or left. After the colours which have been applied

page_text: are dry, the Canada balsam varnish must be applied in the same manner as
has been described for the uncoloured pictures.
I will now proceed to describe another mode of carrying out that portion of
my said Invention which consists in rendering photographic paper pictures
transparent, and which mode, as being more expeditious, I prefer to that
herein-before described.
I take the photographic picture on paper, either coloured or uncoloured, and
steep it in the above-mentioned varnish until it becomes perfectly transparent;
I then at once place the clarified picture on the glass to be ornamented (taking
great care that no air is allowed to remain between the surface of the picture
and the glass) to which the varnish will cause the picture to adhere. If the
atmospheric temperature at the time of operating be low the glass must be
slightly heated. The picture thus clarified and attached to the glass may be
treated by the portions of the process above described following the applications
of the varnish necessary for rendering the picture transparent. Instead of
attaching the clarified picture by placing it at once on the glass to be orna-
mented, and causing it to adhere thereto by means of the varnish, the picture
after being rendered transparent by being steeped in the varnish may be
allowed to dry, and may be attached at a future time to the glass by means of
a solution of gum arabic, as directed in the first process herein described. The
glass used may be of various tints, whereby very good effects are obtained.
Having now described the nature of my said Invention, and the manner in
which the same is to be performed, I would have it understood that what I
consider novel and original, and therefore claim as the Invention secured to
me by the herein-before in part recited Letters Patent, is the rendering
photographic paper pictures, transparent, and attaching the said pictures to
glass, whether the paper of the said pictures be retained or removed, as
herein-before described.
In witness whereof, I, the said Anna Josephine Wright, have hereunto
set my hand and seal, this First day of June, in the year of our Lord
econd sight hundred and sixty-six
ANNA JOSEPHINE WRIGHT. (L.S.)