IMPROVED APPARATUS POR ENGRAVING
Year: 1864

page_text: LETTERS PATENT to Pierre Elie Gaiffe and Eugene Zglinicki, of Paris,
Rue de l'Ouest, No. 68, Electro Engineers, for the Invention of "IMPROVED
APPARATUS POR ENGRAVING"
Sealed the 19th May 1865, and dated the 24th November 1864.
PROVISIONAL SPECIFICATION left by the said Pierre Elie Gaiffe and
Eugene Zglinicki at the Office of the Commissioners of Patents, with
their Petition, on the 24th November 1864.
We, PIERRE ELIE GAIFFE and EUGENE ZGLINICKI, of Paris, Rue de l'Ouest,
No. 68, Electro Engravers, do hereby declare the nature of the said
Invention for "IMPROVED APPARATUS FOR ENGRAVING," to be as follows:-
This apparatus is intended to engrave in high or low relief upon flat
surfaces, and that on the same or on an enlarged or reduced scale, a drawing
or design in manner hereafter set forth.
The apparatus consists of two tables, one large and the other small; the
larger carries the original type or design to be reproduced. The design is
drawn in insulating substances upon a metallic ground. The small table
carries the plate which is to receive the engraving. Each table is provided

page_text: with a movable carriage, and these carriages are driven by machinery, which
allows of their respective speed being increased or diminished as required.
Figure 1 is an elevation, and Figure 2 a plan of one of our apparatuses.
Motion may be imparted from any prime mover. Motion is first com-
municated to the shaft a, from it to another shaft b carrying two endless
screws c; each screw drives one of the carriages d, d', through a crank e, e',
the course of which may be varied, whence the augmentation or decrease in
the scale of the engraving. If, for instance, the cranks e, e', are regulated at
the same distance, as they drive two equal levers f, f', upon a shaft 9, which
carries two double levers h, h', connected to the carriages, motion being given
to the cranks, the course of the levers will be the same as well as that of the
carriages. If, on the other hand, one of the cranks e, e', became double that
of the other the course of the carriage driven by that crank would be double
that of the other carriage. By thus changing the respective lengths of the
arms of the levers the course of the two carriages can be determined in the
ratio required. The carriage d is armed with a point 1, called a style or
reader, which travels over the type or original design; the other carriage d¹
carries a graver k; this graver k, moved by an electro-maguet, is connected
by an electric wire to the reader of the type design, and can either raise or
lower it. The carriages having a to-and-fro motion along the length of the
apparatus each time that the reader travels over a metal part of the original
design the current will pass into the electro-magnet s, and the graver will be
raised. When, on the other band, the reader travels over au insulating part
the current will not pass into the electro-magnet, the graver will be left to
itself, and will trace the engraving to tho depth required. By forming two
separate circuits for the electric wire, the one passing by the reader and the
other by a metallic point engraving in high relief, as wood engraving, may be
produced.
Independently of the longitudinal movement of the carriages there is
another movement imparted to the reader and graver in the carriages, and
allows them to travel laterally while the carriages carrying them longitudinally,
and thus every part of the design is traversed. Similarly to the longitudinal
movement the lateral movement for the reader and graver may be equal or in
respective proportion to that of the cranks, so as to reduce or increase laterally
in the same proportion as longitudinally. The transverse movement is given
through a screw m set in motion by toothed wheels n, n, driven by a rack p.
This latter, as well as the toothed wheels, are fitted to each carriage, and
travel with it. When the carriage reaches the end of its course the rack
butts against a micrometric adjustable screw q, the rack rod pushes the rack

page_text: and turns the toothed wheels. If the stop is of equal length for the two
carriages, the toothed wheels and the screws of each carriage turn equally,
hence each instrument, the reader and the electro-magnetic graver advance
in equal proportions, and the reproduction is on the same scale as the orignal;
the contrary takes place. if the travel of the reader carriage is prolonged
beyond that of the graver carriage..
If, instead of one reader and one graver, a number of readers and gravers
are used, the operation will be expedited.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Pierre Elie Gaiffe and Eugene Zglinicki in the Great Seal'
Patent Office on the 24th May 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, PIERRE
ELIE GAIFFE and EUGENE ZGLINICKI, of Paris, Rue de l'Ouest, No. 68, Electro.
Engravers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters.
Patent, bearing date the Twenty-fourth day of November, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said Pierre Elie Gaiffe and Eugene Zglinicki, Her.
special licence that we, the said Pierre Elie Gaiffe and Eugene Zglinicki,
our executors, administrators, and assigns, or such others as we, the said
Pierre Elie Gaiffe and Eugene Zglinicki, our 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 "IMPROVED APPARATUS FOR ENGRAVING," upon the condition
(amongst others) that we, the said Pierre Elie Gaiffe and Eugene Zglinicki,
or one of us, our executors or administrators, by an instrument in writing
under our, or one of our, 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.
KNOW KNOW YE, that we, the said Pierre Elie Gaiffe and Eugene,
Zglinicki, do hereby declare the nature of our said Invention, and in what

page_text: manner the same is to be performed, to be particularly described and
ascertained in and by the following statement thereof, reference being had to
the Drawings hereunto annexed, that is to say:-
This apparatus is intended to engrave in high or low relief upon flat
surfaces, and that on the same or on an enlarged or reduced scale a drawing
or design in mauner herein-after set forth.
The apparatus consists of two tables, one large and the other small; the
larger carries the original type or design to be reproduced. The design is
drawn in insulating substances upon a metallic ground. The small table
carries the plate which is to receive the engraving. Each table is provided
with a moveable carriage, and these carriages are driven by machinery, which
allows of their respective speed being increased or diminished as required.
Figure 1 is an elevation, Figure 2 a plan, and Figure 3 an end view of one
of our apparatuses. Motion may be imparted from any prime mover. Motion
is first communicated to the shaft a, from it to another shaft b carrying two
endless screws c; each screw drives one of the carriages d, d¹, through a
crank e, e¹, the course of which may be varied, whence the augmentation or
decrease in the scale of the engraving. If, for instance, the cranks e, e', are
regulated at the same distance as they drive two levers f, f', upon a shaft g,
which carries two double levers h, h', connected to the carriages, motion being
given to the cranks, the course of the levers will be the same as well as that
of the carriages. If, on the other hand, one of the cranks e, e¹, become
double that of the other, the course of the carriage driven by that crank
would be double that of the other carriage. By thus changing the respective
lengths of the arms of the levers the course of the two carriages can be
determined in the ratio required. The carriage d is armed with a point 7,
called a style or reader, which travels over the type or original design. The
other carriage d¹ carries a graver k, shewn detached in Figure 5. This
graver k, moved by an electro-magnet E (see Figure 4) is connected by an
electric wire F to the reader of the type design, and can either raise or
lower it. The carriages having a to-and-fro motion along the length of the
apparatus each time that the reader travels over a metal part of the original
design the current will pass into the electric magnet s, and the graver will be
raised. When, on the other hand, the reader travels over an insulating part
the current will not pass into the electro-magnet, the graver k will be left to
itself, and will trace the engraving to the depth required. By forming two
separate circuits from the electric wire, the one passing by the reader and the
other by a metallic point engraving in high relief, as wood engraving, may be
produced.

page_text: Independently of the longitudinal movement of the carriages there is
another movement imparted to the reader and graver in the carriages, and
allows them to travel laterally while the carriages carry them longitudinally,
and thus every part of the design is traversed. Similarly to the longitudinal
movement the lateral movement for the reader and graver may be equal or
in respective proportion to that of the cranks, so as to reduce or increase
laterally in the same proportion as longitudinally. The transverse movement
(Figure 2) is given thro' a screw m set in motion by toothed wheels n, n,
driven by a rack p. This latter, as well as the toothed wheels are fitted to each
carriage, and travel with it. When the carriage reaches the end of its course
the rack buts against a micrometric adjustable screw q, the rack rod pushes
the rack, and turns the toothed wheels. If the stop is of equal length for the
two carriages the toothed wheels and the screws of each carriage turn equally,
hence each instrument, the reader, and the electro-magnetic graver, advance
in equal proportions, and the reproduction is in the same scale as the original;
the contrary takes place if the travel of the reader carriage is prolonged
beyond that of the graver carriage.
If, instead of one reader and one graver a number of readers and gravers
is used, the operation will be expedited.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim constructing
apparatus for engraving, in which there are two carriages, one of which
carries a style or reader, and the other a graver moved by an electro-magnet,
all arranged and acting substantially as herein-before described and illustrated
in the accompanying Drawings.
In witness whereof, I, the said Pierre Elie Gaiffe, have hereunto set
my hand and seal, this Sixteenth day of May, One thousand eight
hundred and sixty-five.
Witness,
CH. ARMENGAUD,
Civil Engineer,
Boulevd de Strasbourg, 23,
à Paris.
P. E. GAIFFE. (L.S.)