Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1884-03-01
4 SUBSTITUTE FOR PHOTOGRAPHIC
STONE.
A substitute for lithooranhic stor

A substitute for photographic stone has
lately. been invented by P. c. Meller, of
Leipzig and has been proven a perfect sue
cess. Mr.. Meller has already secured
patents in Germany, Austria, Hungary,
England, Italy, France, Russia, Sweden,
Denmark, the United States, etc. The
patents for England and France have al
ready been sold to other parties for l60, 600
marks-about $4,000. Rudolph Hart
mann, editor OF Polygraphisches Central.
bIatt, in Leipzig, who bids us farewell in
the last number December, 1889, and has
discontinued his journal, devoted to lithog-
raphy and the graphic arts, after eighteen
years existence, says: We came into
possession, by the kindness of MIR. Meller
himself, of collection of specimen copies
printed from metal plates, with cover of
photographic stone mass, which he calls
limesinter. Those impressions are exc
cuted in the engraving, pen and crayon
manner, and also from transfers made from
stone and steel engravings-a sure proof
that every kind and every process
of photographic printing can be done by
this substitute for stone. The printing
has to be done in the usual way, by hand
or steam press The linking is extraordi-
narily easy, and makes more than two
rollers unnecessary, SO evenly and easily
do these plates take the ink. The plates
can be used for chrome work also. The
making OF these plates are easy, quick and
cheap. A zinc plate in any size, about a
thirty. second of an inch thick, in the con-
dition in which it can be bought, will
answer the purpose, without granting or
polishing only the cleaning of the plate
and removal of all greasy matter will be
necessary. The covering of this plate,
which has the same chemical properties as
the photographic stone, is made from
mixture of lime as the principal clement,
beside some other constituents, and car
bonic acid. This is all strewn over the
warmed metal plate, and can be done al
Gbtum in any thickness but, for instance,
in an engraving it will be thick enough if
it is sprinkled over twice or thrice.
Through the magnifyiDg glass one will see
exactly the same crystals which one notices
on the surface of the photographic stone"
AS we said before, the printing can be
done in the same manner as usual, on hand
and steam presses. By this new invention
all kinds of engraved plates can also be
printed with the roller instead of dabber.
This enables us to print in all styles-as
stipple, crayon and engraving one
plate together. The hardness and cheap.
ness of these ordinary zinc plates, and the
covering on the work and material, cost
ing, so to speak, nothing, we may expect
that all plates, even of very little value,
will be preserved. The covering can also
be removed, and a new cover be made on
the game plate. What a revolution this
new invention will make in very short
time in the use of photographic stone is hard
to say but the practical business man, as
well as the practical photographer, will
easily see the enormous Importance of this
invention That this is also acknowledged
by capitalists is shown by the quick sale of
the patents for France aud England for
the sum of fS, 0.-IChicago Lithographer
and Printer