Improvements in the Manufacture of Copying Ink.
Year: 1891

page_text: Date of Application, 23rd Feb., 1891
Complete Specification Left, 23rd Nov., 1891-Accepted, 24th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Copying Ink.
1, EUGENE COEN of Turin in the Kingdom of Italy, Ink Manufacturer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to the manufacture of copying ink, by the use of which
damping the copying paper or leaves of the letter copying books when taking off
copics of letters, bills memorandum and the like is rendered unnecessary and
considerable saving of time is effected. The copying paper or leaves of the letter
books are also less liable to become torn or damaged.
The ink prepared according to my invention enables copies to be taken off
several hours after the original has been written, and, after the first copy has been
taken off a second copy can be taken off in another letter copying book or on loose
or detached leaves of similar paper.
The process of taking off copies is performed in the ordinary manner by pressure
which may be obtained by means of ordinary copying presses or apparatus in
the usual manner. When taking off the second copy it is advantageous to damp
or moisten the copying paper.
In manufacturing copying ink according to my invention I employ ordinary ink
combined with sugar and glycerine preferably in or about the following proportions
for example.
Ordinary ink
Candied or twice refined sugar
Pure glycerine
690 parts.
225
"
85
12
These ingredients being thoroughly mixed preferably without heat form a
writing fluid possessing the properties hereinbefore described which may then be
placed in cork stoppered bottles flasks or other suitable receptacles.
J. H. JOHNSON & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Copying Ink.
EUGENE COEN of Turin in the Kingdom of Italy Ink Manufacturer 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:
This invention relates to the manufacture of copying ink by the use of which
damping the copying paper or leaves of letter copying books when taking off
copies of letters bills memoranda and the like is rendered unnecessary and con-
siderable saving of time is effected. The copying paper or leaves of the letter
books are also less liable to become torn or damaged.
The ink prepared according to my invention enables copies to be taken off
several hours after the original has been written, and, after the first copy has
been taken off a second copy can be taken off in another letter copying book or on
loose or detached leaves of similar paper.
The process of taking off copies is performed in the ordinary manner by
pressure which may be obtained by means of ordinary copying presses or apparatus
in the usual manner with the exception that when one copy is taken off no

page_text: Pure glycerine
85 "
These ingredients being thoroughly mixed preferably without heat form a
writing fluid possessing the properties hereinbefore described which may then be
placed in cork stoppered bottles, flasks or other suitable receptacles, and employed
in the usual manner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The combination of sugar and glycerine with ordinary ink constituting an
improved copying ink substantially as hereinbefore described.
J. H. JOHNSON & Co.,
Agents.