IMPROVEMENTS IN PRODUCING PLATES FOR PRINTING PURPOSES
Year: 1879

page_text: LETTERS PATENT to Charles Wayte and Conrad Herzog, both of 8ª, Red Lion
Square, in the County of Middlesex, for the Invention of "IMPROVEMENTS
IN PRODUCING PLATES FOR PRINTING PURPOSES."
Sealed the 24th October 1879, and dated the 22nd May 1879.
PROVISIONAL SPECIFICATION left by the said Charles Wayte and Conrad
Herzog at the Office of the Commissioners of Patents on the 22nd May 1879.
CHARLES WAYTE and CONRAD HERZOG, both of Sa, Red Lion Square, in the
County of Middlesex. "IMPROVEMENTS IN PRODUCING PLATES FOR PRINTING
PURPOSES."
The object of this Invention is the production of plates for printing purposes by
means of unskilled labor, whereby we are enabled to dispense with the skilled labor
required for the ordinary method of engraving or for drawing on stone.
In carrying out our Invention we take a thin black or non actinic film, or a layer
of colored paper or other suitable material, such film or such layer being produced
or placed on glass, paper, or other transparent material by means of photography, or
by painting, pasting, or otherwise, as the case may be. Upon this film or layer is
drawn, printed, photographed, or otherwise produced on an enlarged scale the
design, print, or figure of which a plate is required, and such design is cut, scraped,
or worked out of the film or layer so as to produce either a positive or negative,
as the case may be. From this positive or negative a copy of any required size
may be produced by photography, and then transferred by any well known process
to stone, metal, or otherwise, as the case may be, for printing purposes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Wayte and Conrad Herzog in the Great Seal Patent Office on
the 20th November 1879.
CHARLES WAYTE and CONRAD HERZOG, both of 8ª, Red Lion Square, in the
County of Middlesex. "IMPROVEMENTS IN PRODUCING PLATES FOR PRINTING
PURPOSES."
The object of this Invention is the production of plates for printing purposes by
the means hereinafter described, whereby we are enabled to dispense with the
skilled labour required for the ordinary method of engraving or for drawing on
stone.
In carrying out our Invention we make use of a thin black or non actinic film, or a
layer of colored paper or other suitable material, such as gelatine; the film or layer
is produced or placed on glass, prepared paper, or other suitable transparent material
by means of photography, or by painting, pasting, or otherwise, producing the said
film, as the case may be. Upon this film or layer is drawn, printed, photographed,
'or otherwise produced on an enlarged scale the design, print, or figure, a copy of
which upon a plate or printing surface is required, and such design is cut, scraped,
or worked out of the film or layer by any suitable known means so as to produce
either a positive or negative, as the case may be. From this positive or negative a
copy of any required size may be produced by photography, and then transferred
by any well known process to stone, metal, or otherwise, as the case may be, for
printing purposes.
Having thus described our Invention, and the manner of performing the same,
what we claim is,―
Firstly. The improvements in producing plates for printing purposes hereinbefore
described.
Secondly. The use of plates produced by our improved method for printing
figures, letters, or designs as described.
In witness whereof, I, the said Conrad Herzog, for and on behalf of myself
and the said Charles Wayte, have hereto set my hand and seal, this
Twentieth day of November, in the year of our Lord One thousand eight
hundred and seventy nine.
CONRAD HERZOG (19)
CONRAD HERZOG (LS)