A NEW OR IMPROVED METHOD OF OBTAINING OR PREPARING PRINTING SURFACES AND IN PRINTING THEREFROM
Year: 1856

page_text: LETTERS PATENT to Jean Baptiste Désiré Chevalier and Narcisse Rabouin
O'Sullivan, of Paris, (Empire of France,) for the Invention of "A NEW OR
IMPROVED METHOD OF OBTAINING OR PREPARING PRINTING SURFACES AND IN
PRINTING THEREFROM."
"
Sealed the 6th January 1857, and dated the 11th July 1856.
PROVISIONAL SPECIFICATION left by the said Jean Baptiste Désiré
Chevalier and Narcisse Rabouin O'Sullivan at the Office of the Com-
missioners of Patents, with their Petition, on the 11th July 1856.
We, JEAN BAPTISTE DÉSIRE CHEVALIER and NARCISSE RABOUIN O'SULLIVAN,
of Paris, (Empire of France, do hereby declare the nature of the said Invention
for "A NEW OR IMPROVED METHOD OF OBTAINING OR PREPARING PRINTING SURFACES
AND IN PRINTING THEREFROM," to be as follows:-
Our Invention has reference to printing similar to & as a substitute for
lithographic & other surface printing. On wire cloth, or other finely reticulated
metallic substance or woven vegetable fabric or tissue, we draw the desired
figures or characters, with an ink consisting of lamp black or indian ink, mixed
with a gum, sugar & salt. We then coat the surface drawn upon with a film of
gutta percha or other suitable substance, which adheres firmly to all parts of
the fabric not drawn or written upon. When this is set, we wash the whole
fabric or surface, by which process the ink drawing or writing is obliterated

page_text: & disappears, leaving its form in the reticulated material or fabric surrounded
by that part covered with gutta percha, which remains uninjured by the wash-
ing; the fabric is thus rendered pervious at those parts formerly occupied by
the ink drawings or writing, but impervious at all other parts.
One or more colours are applied at the back of the fabric, that is, on the
opposite side to the gutta percha, and impressions are taken by a suitable
degree of pressure on the face of the fabric, the colour or colours passing
through the fabric at the pervious parts, constituting the design or characters
to be printed, and so impressing or printing on materials so pressed & applied
thereto.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jean Baptiste Désiré Chevalier and Narcisse Rabouin
O'Sullivan in the Great Seal Patent Office on the 10th January 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JEAN
BAPTISTE DESIRE CHEVALIER and NARCISSE RABOUIN O'SULLIVAN, of Paris,
Empire of France, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of July, in the year of our Lord One
thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Jean Baptiste Désiré Chevalier and Narcisse Rabouin O'Sullivan, Her special
licence that we, the said Jean Baptiste Désiré Chevalier and Narcisse Rabouin
O'Sullivan, our executors, administrators, and assigns, or such others as we,
the said Jean Baptiste Désiré Chevalier and Narcisse Rabouin O'Sullivan,
our executors, administrators, and assigns, should at any time agree with, and
no others, from time to time and at 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 "A NEW OR IMPROVED METHOD
OF OBTAINING OR PREPARING PRINTING SURFACES AND IN PRINTING THEREFROM,"
upon the condition (amongst others) that we, the said Jean Baptiste Désiré
Chevalier and Narcisse Rabouin O'Sullivan, our executors or administrators,
by an instrument in writing under 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.

page_text: NOW KNOW YE, that we, the said Jean Baptiste Désiré Chevalier &
Narcisse Rabouin O'Sullivan, do hereby declare the nature of our said Inven-
tion, 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:
Our Invention has for its object to obtain printing surfaces as a substitute
for lithography and other similar methods of printing.
According to our Invention, besides being much cheaper than lithographic
printing, it has this advantage, that a design consisting of one or a number of
different colors can be printed at one and the same time, while in ordinary
printing each color has to be worked off separately, and entails a great amount
of labor.
In carrying out our Invention, we take any suitable permeable substance or
fabric, such as linen, calico, cloth, canvas, or other woven or suitable material,
or it may be a reticulated metal surface, or metallic plate or sheet, perforated
with minute holes to impart the required degree of permeability. On this
surface we draw or write the desired figures or characters in an ink composed
of lamp black, indian ink, gum, sugar, and salt.
A coating of this ink being applied to the permeable surface in the form of
the design or character or characters required, we next coat the permeable
substance on that side drawn upon with a thin coating or film of gutta percha,
or of gelatinous material, covering the drawing as well as the other part of the
permeable material. When the coating of gutta percha or other gelatinous
material is dry, we wash the fabric or other surface so coated; the gutta
percha or gelatinous material, at that part where it comes in direct contact
with the permeable material, adheres firmly thereto; but at at those parts
covered by the ink it has no such adhesion, and simply holds to the ink design.
The ink, being readily soluble in water, is removed in the washing, and carries
away the gutta percha covering it; thus the design or characters drawn or
written upon the permeable material is now the only pervious part remaining
in the surface.
The back part of the pervious substance or fabric is now to be coated with
the ink or color or colors required to be printed. Having applied the ink or
colour, the impression is now taken from the face of the fabric or substance by
pressure in a suitable press; the paper or surface to be printed being placed in
contact with the face of the fabric or printing surface, the ink or color passes
through the pervious part, and is thus applied and printed on the paper or
other surface required.
Instead of applying the ink or color to the back of the pervious material,

page_text: the design in that material may be placed on a pad containing a reservoir of
ink or color, by which the ink or colour is supplied by pressing it on such
pad, from which it passes through the pervious parts of the material con-
stituting the design to the paper or substance placed on the face of the
printing surface to receive the impression, and which printing we term per-
forated printing.
Having described the nature of our Invention, and the manner in which
the same may be performed, we desire it to be understood that what we claim
as our Invention, and desire to be protected by the herein-before in part recited
Letters Patent, is, printing in one or more colors at one and the same time by
means of permeable surfaces, treated and prepared and applied, in the manner
and as herein-before described.
In witness whereof, we, the said Jean Baptiste Désiré Chevalier &
Narcisse Rabouin O'Sullivan, have hereunto set our hands and seals,
this Sixth day of January, in the year of our Lord One thousand eight
hundred and fifty-seven.
J. B. D. CHEVALIER.
(L.S.)
RABOUIN O'SULLIVAN. (L.S.)
J. B. D. CHEVALIER.
(L.S.)
RABOUIN O'SULLIVAN. (L.S.)