IMPROVED FLEXIBLE INK OR COLOUR COMPOUNDS FOR PRINTING PURPOSES
Year: 1880

page_text: LETTERS PATENT to Leopold Beral Bertram, of 25, Cornwall Road, Bayswater,
in the County of Middlesex, for an Invention of "IMPROVED FLEXIBLE INK
OR COLOUR COMPOUNDS FOR PRINTING PURPOSES."
PROVISIONAL SPECIFICATION left by the said Leopold Beral Bertram at
the Office of the Commissioners of Patents on the 9th November 1880.
LEOPOLD BERAL Bertram, of 25, Cornwall Road, Bayswater,, in the County
of Middlesex. "IMPROVED FLEXIBLE INK OR COLOUR COMPOUNDS FOR PRINTING
PURPOSES."
The object of this Invention is the combination of ingredients and the production
of compounds suitable for use either as ink or colour pads for rubber type, as dabbers
for artists, or as rollers for typo printing apparatus or machines.
My flexible compound can be of any degree of softness or plyable hardness, and
possess the property of returning to its original regularity of surface after com-
pression in a similar manner to ordinary printers roller composition at present
in use.
For the purposes of my Invention I take suitable proportions of aniline (in
powder or crystals) of any colour, acetic acid, glucose, glue, or gelatine, glycerine,
and water, and, as an oxample, for one of my compounds I take the following
proportions of those ingredients, and treat them in the following manner :-
I mix 4 parts by weight of aniline powder or crystal in 12 parts of water at a.
gentle heat, and stir to dissolve the aniline.
I then add 1 part glucose.
2 parts acetic acid, and
8 parts glue or gelatine.
Adding another 12 parts water and 64 parts glycerine, continuing the stirring

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Leopold Beral Bertram in the Great Seal Patent Office on the 7th
May 1881.
LEOPOLD BERAL BERTRAM, of 25, Cornwall Road, Bayswater, in the County
of Middlesex. "IMPROVED FLEXIBLE INK OR COLOUR COMPOUNDS FOR PRINTING
PURPOSES."
The object of this Invention is the combination of ingredients and the production
of compounds suitable for use either as ink or colour pads for rubber or other type,
as dabbers for artists, or as rollers for type printing apparatus or machines.
My flexible compound can be of any degree of softness or plyable bardness, and
possess the property of returning to its original regularity of surface after
compression in a similar manner to ordinary printers roller composition at present
in use.
For the purposes of my Invention I take for my first compound suitable
proportions of aniline (in powder or crystals) of any colour, acetic acid, glucose,
glue, or gelatine, glycerine, and water, and, as an example, I mix 4 parts by weight
of aniline powder or crystal in 12 parts of water at a gentle heat, and stir to
dissolve the aniline.
I acetic acid.
1 glucose.
The black is ground into a paste with glycerine, and then put into a pan and
worked in with the other ingredients, and then moulded into the required shape in
the usual manner of printers composition rollers. I may mention that the admixture
of glucose and of acetic acid with the other ingredients named forms the essential
feature of my Invention.
I therefore claim,—
The manufacture of flexible ink or colour compounds for printing purposes from
combinations of ingredients hereinbefore described.
In witness whereof, I, tho said Leopold Beral Bertram, have hereunto set my
hand and seal, this Seventh day of May, in the year of our Lord One
thousand eight hundred and eighty one.
4
LEOPOLD BERAL BERTRAM. (L.S.)