IMPROVEMENTS IN THE ORNA- MENTATION OR DECORATION OF EARTHENWARE, PORCELAIN, GLASS, AND ARTICLES, AND IN PRODUCING THE DESIGNS, FIGURES, PATTERNS, AND ROLLER- MOULDS USED IN SUCH PROCESS, BUCH ROLLER MOULDS BEING ALSO APPLICABLE FOR THE CASTING OF ROLLERS USED IN TYPOGRAPHIC AND LITHOGRAPHIC PRINTING
Year: 1860

page_text: PROVISIONAL SPECIFICATION left by Isaac Broad Shaw and James
Edmund Shaw at the Office of the Commissioners of Patents, with
their Petition, on the 19th July 1860.
We, ISAAC BROAD SHAW, of Tunstall, in the County of Stafford, Printer,
and JAMES EDMUND SHAW, of Burslem, the same County, Painter, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE ORNA-
MENTATION OR DECORATION OF EARTHENWARE, PORCELAIN, GLASS, AND
ARTICLES, AND IN PRODUCING THE DESIGNS, FIGURES, PATTERNS, AND ROLLER-
MOULDS USED IN SUCH PROCESS, BUCH ROLLER MOULDS BEING ALSO APPLICABLE FOR
THE CASTING OF ROLLERS USED IN TYPOGRAPHIC AND LITHOGRAPHIC PRINTING,"
to be as follows:-
Firstly, as relates to the mode of making or producing the designs, figures,
or patterns used in the process, we take a piece of laminated lead or other
laminated metal, on the surface of which is traced the design or figure desired,
which is then worked up with a plumbago style or pencil into relievo, but
having a square or flat face, from which we then take a cast in plaster of
Paris, either from the obverse or reverse as may best suit the object intended.
to be ornamented, which cast is used in the manner afterwards described.
Or the above object may be attained by tracing the design in wax or soap,
or clay; or the design may be engraved in wood or otherwise produced. The
object sought to be attained being a raised surface similar to those used in
letter-press printing.
Secondly, as relates to producing the before obtained. designs or patterns in

page_text: the elastic composition. Having obtained the design or patterns in a raised
surface, we next proceed as follows:-We take the design or pattern and stamp
or press it into clay or any other suitable plastic material, we then take a
composition of glue, treacle, salt, and corrosive sublimate, or any other
suitable elastic material, such as gutta percha or indian-rubber, and after liqui-
fying the same, we pour it into and upon the design as pressed in the clay, by
which means we obtain the designs in a fine elastic state, with a perfect square
face (or otherwise if) desired). In some cases we use leather or papier maché
for the above purposes after being rendered plastic.
Thirdly, as relates to producing patterns with the elastic material in a
different way. We take two sheets of glass, and having finely oiled the
surfaces thereof, we place them almost in contact, leaving about one-quarter
of an inch between them, and having the before-mentioned composition ready
in a liquid state, we carefully pour it between the said sheets of glass, and then
allow it to cool; after which it is carefully taken out and cut with dies or any
other suitable way, into any desired design or pattern.
Fourthly, as regards the mould for casting the rollers required in the process,
and which is also applicable for casting rollers for letter-press and other
printing. This mould is made of earthenware, in two parts, but when firmly
joined gives a beautifully circular roller, with a highly smooth surface.
Fifthly, as regards the method or way of using the above roller patterns and
designs in ornamenting earthenware and other articles. Having the designs
or patterns produced as before mentioned in the elastic composition, they are
to be affixed to suitable handles, and are then ready for use, as follows:-
A quantity of color or gold intended to be used is finely distributed by means
of a roller (produced out of the mould, as before mentioned) on a flat surface
of wood or "pitcher." The face of the designs or patterns is then dabbed on
the aforesaid roller or slab, which thereby imparts a certain quantity of color
or gold to the surfaces of the said patterns, which are then carefully put or
pressed against the articles to be ornamented, which thereby receive a perfect
ac-simile of the designs, patterns, or figures as desired.
The before-mentioned designs or patterns can be produced in sections,
whereby any number of colors may be worked at one and the same time.