IMPROVEMENTS IN PRINTING MACHINERY
Year: 1884

page_text: J, HERBERT JOHN HADDAN, of 67, Strand, in the City of Westminster, Civil
Engineer, do hereby declare the nature of my Invention for "IMPROVEMENTS IN
PRINTING MACHINERY," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This Invention has for its object improvements in printing machinery for the .
production of imitations of wood upon endless paper or any other suitable material
and for other purposes.
For the production of prints or impressions upon endless paper or any other
suitable material I preferably employ a printing machine, which is provided with
a selfacting inking-devico.
An original plate of zinc containing the design (which may have been etched
according to the new system forming the subject matter of a simultaneous
application for Patent, or may have been produced in any other way) about two
meters long and about half a meter in width is bent into a circular shape and
suitably fixed on a roller of wood or other stiff material and is now ready for
printing.
This original plate may however be produced in any required length and width
according to the size of the roller upon which it is to be placed and to the width
of the endless paper to be printed.
The accompanying Drawing represents a printing machine especially adapted for
printing speckles (in imitation of wood) upon endless paper or any other suitable
material.
For this purpose the machine is provided with a printing roller on the convex
surface of which the zinc plate is fixed, the convex surface of which presents the
design or drawing of the speckle or grain.
This roller or drum will produce very fine and clean prints upon the endless
paper and is preferably made in the following dimensions: Outer diameter 60
to 70 cm. Length 50 cm.
It will be understood however that this roller may be made of any desirable size
and of any suitable material like wood, metal, ebonite or the like without
departing from the nature of this Invention,

page_text: After tho zinc plate has been bent around the roller the adjacent edges forming
the joint are very carefully connected and the joint is filled with tin solder
and filed smoothly, then the cavities are worked over, filed and graved again so
that the joint is not perceptible in the print and the design forms a continuous and
integral picture of the speckle, grain &c.
The machine is equally adapted to be driven by hand or steam, and will now be
more fully described with reference to the Drawing.
The inking cloth D is mounted upon and turns around three rollers F F F and
raises and carries along ink from the inking fountain E.and transfers suitable
quantities of this ink to the inking roller C which is tightly covered with felt.
The inking rollor transfers the ink to the printing roller B (containing on its
convex surfaco the design or drawing of the speckle, grain, &c) and this printing
roller finally transfers it to the endless paper running around the roller A.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1. A printing machine composed essentially of, the endless inking cloth D
mounted upon and running around the three rollers F, an inking roller C, a
printing roller (or pattern roller) B provided with the original matrice die and
a paper roller A, casontially as and for the purpose described.
2. The method of connecting the edges of the zinc plate after rolling the same
over the roller of the printing machine substantially as and for the purposes
described.