Improvements in and relating to the Art of Plate Printing.
Year: 1895

page_text: Date of Application, 7th May, 1895-Accepted, 8th June, 1895
COMPLETE SPECIFICATION.
Improvements in and relating to the Art of Plate Printing.
I, AMOS HENRY SMITH, a citizen of the United States of America, residing at
583 Tenth Street, in the City, County and State of New York, one of the
aforesaid United States of America, Machinist, do hereby declaro 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 :-
This invention relates to certain improvements in the ait of plate printing.
The object of the invention is to gather from a plate, previously inked, the
design, lines or engraving of said plate and transfer or superimpose in ink said
design, lines or engraving of said plate upon the surface of another engraved plate,
which has been previously inked, wiped and polished ready for printing, whereby,
when the latter plate is printed from, it will produce a result which is in effect the
combination of the design, lines on engraving of the two plates.
To accomplish this, two plates are first propared, one an engraved plate, such as
a bank note or draft plate, in which the lines or designs are in intaglio, the other
a plate or other suitable printing surface having a design preferably of engraved
lines, which may be in relief or otherwise. The first, or intaglio plate is then
inked, wiped and polished ready for punting. The second plate is then inked,
either simultaneously with or after inking the first plate, and a surface, preferably
of gum or composition, applied to the second plate, and the design or engraved
lines of said second plate transferred in ink to the gum or composition surface,
which is in turn placed upon the surface of the first plate, which has been prepared
as above stated, and the design, lines or engraving of the second plate transferred
from the gum or composition surface to the surface of the first or intaglio
plate, thus doubly inking the same and causing it to carry the design of the
two plates. The paper is then placed upon the first plate in the ordinary
manner and the same run through the press, producing a result which is the
combination of the design on engraving of the two plates in their respective shades
and tints.
The transferring surface may be formed of any suitable gum, composition or
other material, which will take the inked design or lines from one plate and
transfer the same to the other plate.
Said transferring surface may also be a flat surface, or may be in the form of a
roller.
This transferring surface, it will be noted, transfers from one plate and super-
imposes upon the surface of another the design, lines or engraving in its different
shades and tints.
Tlus process simplifies the art of plate printing and greatly reduces the time and
labor to be expended, particularly in printing bank notes, drafts, bonds, or other
securities.
Having now particularly described and ascertained the nature of my said
nvention, and in what manner the same is to be performed, I declare that what
I claim 18:
1. The process of preparing a surface for printing, which consists in inking,
wiping and polishing a plate having a design engraved thereon and then placing
upon the surface of the plate a second design, substantially as set forth.
2
As an inurement in the

page_text: upon an engraved plate, previously inked, wiped and polished, a design, tint or
printing offset from a separate plate or other pritsing surface, previously inked,
and then printing from the first plate, substantially as set forth.
3 As an improvement in the art of plate printing, the process of offsetting a
design, from a previously inked plate or other printing surface, upon a transfeiring
surface, then offsetting upon or transferring from the transferring surface to the
surface of a second engraved plate, also previously inked, wiped and polished, the
lines, design or tint of the first plate, and then printing from said second plate,
substantially as set forth.
4. As an improvement in the art of plate pinting, the process of first inking,
wiping and polishing an engraved plate, then inking a second engraved plate or
design, transferring the lines or design of the second plate to a transferring
surface, then transfeiring said lines or design in ink from the transforming surface
to the surface of the first plate, and then printing from said first plate, substantially
as set forth.
5. As an improvement in the art of plate printing, the process of first inking,
wiping and polishing an engraved plate, and inking a second engraved plate or design,
transferring the ink lines or design or tint of said second plate to a transferring
surface, consisting of a gum or suitable composition, then transferring the said
ink lines, design or tint from the transferring surface to the surface of the first
plate, and then printing from the first plate, substantially as set forth.
6. As an improvement in the art of printing, the process of first engraving a
plate in intaglio, and engraving or otherwise preparing a second plate in relief or
otherwise, then inking, wiping and polishing the intaglio plate and inking the
second plate, impressing upon said second plate a transferring surface to receive
the ink lines, design or tint of the second plate, then impressing the transferring
surface upon the first plate to transfer the said ink lines, design or tint to the
Bu face of said first plate, and then printing from the first plate, substantially as set
forth.
7
Dated this 7th day of May 1895.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.