Imitation Wood, Copper, or Steel Engravings.
Year: 1887

page_text: Date of Application, 15th Aug., 1887
Complete Left, 11th Feb., 1888
Complete Accepted, 16th Mar., 1888
of Imitation Wood, Copper, or Steel Engravings.
I, HENRI BOGAERTS of Brussels in the Kingdom of Belgium, Directeur de la
Société Anonyme l'Imprimerie Artistique representée par Monsieur le Comte de
Meeus President du Conseil d'Administration do hereby declare the nature of this
invention to be as follows:-
My invention relates to a new process whereby I produce by means of the
zincographic process perfect imitations of engraving on wood, copper or steel.
This invention consists in projecting by means of suitable apparatus. the image of
the object to be reproduced upon a sheet of caoutchouc or paper previously prepared,
then photographing the image thus produced which I then photograph and transfer
on to zinc copper or steel by the known processes.
For carrying out the invention I prepare in the first instance a sheet of paper or by
preference caoutchouc by producing upon it either by impression, engraving or other
known means, lines similar to those used in wood engraving.
Upon the ground thus prepared I project by the projecting apparatus the image to
be reproduced. This image may be produced by placing directly in the projecting
apparatus the negative proof of a photograph or the image of a solid object projected
in a mirror.
This image projected on paper covered with lines will also be covered with the said
lines, which will appear stronger or weaker according to the shadows of the projected
image.
If a sheet of caoutchouc is operated upon this can be stretched more or less so as to
produce lines of varying distance apart and more or less curved.
If the image is then photographed a negative is obtained reproducing all the lines
and having the appearance to a remarkable degree of a reproduction of a wood cut.
For imitating an engraving on copper or steel a ground may be used formed of
lines crossing each other, or a sheet may be prepared as above describe and a

page_text: negative of similar lines be produced, which is then placed before the negative to be
obtained or behind the object to be projected, arranging the lines so that they cross at
any desired angle with those of the sheet on which the projection is made. These
lines are projected simultaneously with the object to bo reproduced and the projected
image then appears with the diamond shaped lines like those on copper or steel plate
engravings, and which are accurately reproduced by photography.
The photographs thus produced are then transferred to zinc or copper by any
suitable known process.
D
131
1007

page_text: of Imitation Wood, Copper, or Steel Engravings.
I, HENRI BOGAERTS of Brussels in the Kingdom of Belgium, Directeur de la
Société Anonyme l'Imprimerie Artistique representie par Monsieur le Comte de
Mecus President du Conseil d'Administration do hereby declare the nature of this
invention and in what mannor the same is to be performed to be particularly described
and ascertained in and by the following statement :-
The present invention has for its object a new process for imitating in a perfect
manner, by zincography, engravings on wood as well as those on copper and on
steel.
The invention consists in projecting by means of suitable projection apparatus, the
image of the object to be reproduced on a sheet of caoutchouc or paper previously
prepared, then in photographing the image thus obtained, which is transferred to zinc
or copper by the known means.
In carrying out the invention I prepare in the first place a paper or preferably a
sheet of caoutchouc by printing on it by an engraving or any other suitable process,
lines such as are employed in wood engravings. On the ground thus prepared I
project by means of a projection apparatus the image which I desire to reproduce.
This image may be produced by placing directly in the projection apparatus the
negative of a photograph, or the image of an opaque solid object in a mirror.
This.image projected on the paper covered with lines, is itself covered with these
lines, which appear more or less strong according to the shades of the projected
object. If a single sheet of caoutchouc is used, it may be stretched more or less in
whole or in part, rendering the lines more or less wide apart and more or less
curved.
By photographing the image thus obtained, a negative is produced with all the lines
on it, so that it resembles and may even be mistaken for a reproduction from a wood
engraving.
In order to imitate copper or steel engravings, a ground of crossed lines may be
produced, or a ground with simple lines being produced as above described, a negativo
with similar lines may be placed in front of the negative that is to be produced or
behind the object to be projected in such an attitude that its lines cross at a suitable
angle those on the paper on which the image is projected. The lines are then
projected at the same time with the object that is to be reproduced, and the projected
image appears with the lines forming diamonds such as are found on copper or steel
engravings, and theso are reproduced exactly by the photography.
The image of the object to be reproduced may in like manner be projected on a
sheet of transparent gelatine which has a positive of simple or crossing lines, and
which may or may not be elastic.

page_text: The image of the object to be reproduced may also be projected through a positive
of simple or crossing lines, as the case may be, on a sheet of transparent gelatino,
which may be rendered elastic or not by know processes, and the image thus projected
may then be directly photographed.
In this case the sheet of gelatine is arranged within a frame having sides sufficiently
long to form a kind of dark chamber open at both ends. The projection apparatus is
placed facing one of these open ends, and facing the other is the photographic
apparatus which reproduces the image transmitted through the transparent sheet.
The photographs thus obtained are transferred to zinc or copper by any suitable
process.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The process consisting in photographing images projected by a suitable apparatus
on a sheet of caoutchouc, paper or other material on which have previously been
imprinted lines such as appear in wood engravings or in copper or steel engravings.
2. The use, in carrying out the process referred to in the preceding claim of a sheet
of caoutchouc which can be stretched as desired, so as to vary the direction and
spacing of the lines substantially as herein described.
3. In carrying out the process referred to in the preceding claims, the method of
projecting together with the image on the lined ground the imago of other lines
differing in direction to those on the ground, so as to produce diamond crossings.
4. In carrying out the process referred to in the previous claims the method of
projecting the image upon a prepared ground consisting of a sheet of transparent
gelatine, and then photographing by transmission the image thus projected sub-
stantially as herein described.
5. The combined process of first producing by photography images on a lined
ground, in the manner set forth in the preceding claims and then reproducing such
photographs by zincography or analogous processes.
Dated this 11th day of February 1888.
ABEL & IMRAY,
Agents for the Applicant.