An Apparatus for Reproducing Writings, Drawings, and the like.
Year: 1888

page_text: Date of Application, 15th Mar., 1889
Complete Left, 4th June, 1888
Complete Accepted, 20th July, 1888
PROVISIONAL SPECIFICATION.
An Apparatus for Reproducing Writings, Drawings, and the like.
GEORGE RICHARD GOMM Lithographic Artist George Street Berkhamsted Herts do
hereby declare the nature of this invention to be as follows:-
-
An Apparatus for Reproducing Writing and Drawings and Printing them in
Permanent Ink in any Colour and of unlimited numbers.
The Original Writing or Drawing can be kept on the Plate for future use, or
cleaned off and the Plate used for another subject. The Apparatus consists of a
Plate of Zinc binged to a Table the hinge being made in such a manner to ensure
perfect register. On the Table is placed a sheet of composition, this composition
is composed of certain Chemicals to withstand moisture and give a white tone to
the composition. The Writing or Drawing is done direct on the Zinc, Rolled with
a Roller charged with Printing Ink. The Zinc is then brought over on to the
composition with slight pressure reversing the Printing. A Sheet of Paper or other
Material is laid on the composition and pressed by suitable lever or smoothed by
the Hand.
T
1
2 1000
GEORGE RICHARD GOMM.

page_text: GEORGE RICHARD GOMM Lithographic Artist George Street Berkhamsted Flerts
do hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My Invention relates to an Apparatus for reproducing Writings, Drawings and the
like. The Apparatus consists of a Frame with a moveable bed working on slides
passing under an Impression Roller the said Impression Roller being supported by
bearings and moveable wedges, at one end of the moveable bed a sheet of Zine is hinged
and on the bed a sheet of composition is securely fastened. The writings or Drawings
to be copied are written on a sheet of properly prepared Zine in the ordinary way
with Lithographic Writing Ink and dried. The Zinc Plate is then covered with an
etching fluid and left on the Zine Plate till dry. The operation of Printing is accom-
plished in the following manner. The etching Fluid is first washed off the Zinc Plate
and the writing or Drawing charged with Printing Ink and transfered to the com-
position by means of the Impression Roller and then retransfered to the Paper or
other Material from the composition.
And in order that my said Invention may be more readily understood 1 will
describe the accompanying Drawings, reference being had to the figures and letters
'marked 'thereon similar letters refer to similar parts throughout the different views.
Fig. 1) section of Apparatus with an Impression Roller (a) resting on bearings (b)
attached to the sides of the Frame (e) the said Impression Roller (a) being raised by
'moveable wedges (d) attached to the sides of the bearings (6) the said moveable
wedges (d) being moved backward and forward under the Impression Roller (a) by
means of Metal Pins (e) fastened on each side and ends of the moveable bed () so as
to strike the ends of the wedges (d) when the bed () is moved to the end of the
slides (g) (see Fig. 4. with bed () moved forward) causing the wedges (d) to move
back thereby allowing the Impression Roller (a) to fall on to the Composition (A).
The moveable bed (1) being brought back to its original position the Pins (e) at the
ends of the bed () strike the wedges (d) moveing them forward under the Impression
Roller (a) thereby raising the Impression Roller (a) and leaving a space between the
Impression roller (a) and the moveable bed (f) so that when the moveable bed (f) is
pushed forward it does not come in contact with the Impression Roller (a). On one
end of the bed (f) a Lever (i) is fixed by which the bed (f) is moved to the required
position. Across the bed () is placed a bar (k) to which the Zinc Plate (1) is
screwed the bar (k) being pivoted to the bearing (m) and the Lever (i) by this means
perfect register is secured when the Zinc Plate (1) is brought over on to the
composition.
Fig. 2) Impression Roller.
Fig. 3) Lever to which the Zinc Plate is attached and by means of which the bed

page_text: Fig. 4) Section of Apparatus with moveable bed pushed forward.
The composition (4) is made to resist moisture from the Zinc Plate by mixing
Acetate of Lead and Soda with a Gelatinous substance, the Acetate of Lead to resist
moisture and the soda to give a white tone to the composition although I prefer to use
a composition made in the following manner
other Gelatinous substances can be used in combination with Acctate of Lead and
Soda to resist moisture and give the composition a white tone.
Having now particularly described the nature of my said Invention and in what
manner the same is to be performed I do hereby declare that what I claim is
1) An apparatus consisting of an Impression Roller with moveable wedges, the said
moveable wedges being moved backward and forward by means of Metal Pins
fastened to the sides and ends of a moveable bed, the said bed having at one end
a Zine Plate screwed to a bar the said bar being pivoted to bearings at the end of
the bed substantially as described in Fig. 1 and Fig. 2.
2) Writing or Drawing direct on a Zine Plate Transfering the Writing or Drawing
from the said Zinc Plate on to a sheet of composition and retransfering the writing or
Drawing to Paper or other substances.
3) A composition made in the following manner
50 Parts Glue
GEORGE RICHARD GOMM.