IMPROVEMENTS IN THE PREPARATION OF SHEETS OR SURFACES TO BE USED FOR THE PURPOSE OF PRODUCING OR REPRODUCING IMPRESSIONS, WHETHER FLAT, RELIEF, OR INTAGLIO, ON PAPER OR OTHER MATERIALS."
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by Frank Scott, junior, and James Strafford
Collins at the Office of the Commissioners of Patents on the 22nd September
1879.
"
FRANK SCOTT, junior, and JAMES STRAFFORD COLLINS, of Leytonstone, in the
County of Essex. IMPROVEMENTS IN THE PREPARATION OF SHEETS OR SURFACES
TO BE USED FOR THE PURPOSE OF PRODUCING OR REPRODUCING IMPRESSIONS,
WHETHER FLAT, RELIEF, OR INTAGLIO, ON PAPER OR OTHER MATERIALS."
In carrying out the objects of our Invention we take paper or other flexible
material and apply to its surface a gelatinous compound composed of gelatine,
glycerine, saccharine, oleaginous, soapy or other such matters. The object of the
addition of such matters to the gelatine is to prevent it from becoming horny or
brittle upon drying. We also add earthy or other colouring matters to the said
gelatinous solution for the purpose of giving body, or we add aqueous or spirituous
solutions of shellac or similar gums for the purpose of giving toughness to the said
gelatinous compound.
2nd. We take such gelatinous compounds and mix therewith fibrous matter,
which when mixed will form sheets or skins, upon the surfaces of which said sheets,
skins, or gelatinized paper or other fiexible material, we write or draw in such
inks as are ordinarily used for lithographic purposes, or we take ink composed of
aniline or other dyes or stains, or the before mentioned lithographic ink, and write
or draw upon plain or prepared paper and transfer the same to the surface of our
so-called artificial stones which are composed and made in the manner before
described, and reproduce copies therefrom in a manner similar to that used in
ordinary lithographic processes, or in the case of using the dye or stain ink simple
mechanical contact is sufficient for producing duplicate copies.
3rd. Or we take such sheets, skins, or gelatinized paper, prepared in the manner
before described and with the writing or drawings thereon and apply to cylinders
or cylindrical surfaces to be printed from in that condition, or we take inks having
photographic properties which can be printed from a negative or positive, thereby
producing designs or writing by the ordinary action of light, from which duplicate
copies can be produced.
4th. Or we take such photographic or other inks and produce photographically or
by hand, drawing, writing, or other mechanical means, designs, drawings, writings,

page_text: or photographs of natural objects, which have been produced on the surface of such
sheets, skins, or gelatinized paper, and having given to them suitable conducting
surfaces take electro types from the same.
5th. Or having treated the same sheets, skins, or gelatinized paper (having on
their surface the said drawings, writings, designs or photographs) with water so as
to expand the gelatinous compound, intaligo, or relievo, moulds or cleches can be
obtained to be used as ordinary printing blocks or cylinders.
6th. We reserve the right to form blocks composed of such sheets, skins, or
gelatinized paper, by superimposing or laying one upon the other, thereby forming
a rigid block, but such sheets can be separated by the application of a knife or
other sharp instrument from the block and placed away for future use, thereby
doing away with the neccessity for a stock of heavy and expensive stones.