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Патент USA US2110623

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March 8, 1938.
R. D. GOULD
2,110,623
MEANS AND METHOD OF PRODUCING STEREOTYPES
Filed March 2, 1936
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Patented Mar. 8, 1938
2,110,623
UNITED STATES PATENT OFFICE
2,110,623
MEANS AND METHOD OF PRODUCING
STEREOTYPES
Robert David Gould, Detroit, Mich.
Application March 2, 1936, Serial No. 66,769
5 Claims.
One object of this invention is to provide in
dicia for use in making cast metal stereotype
plates, the indicia being so constructed that they
can be removed readily from the recesses of the
5 plate. Another object of the invention is to pro
vide a novel process for rendering the indicia
readily removable from the recesses of the plate.
A further object of the invention is to provide
an improved process for making a stereo plate.
In the drawing:
'
Fig. 1 is a plan showing one of the indicia,
Fig. 2 is a plan showing the indicia mounted on
a mat, Fig. 3 is a section of the structure de
picted in Fig. 2, Fig. 4 is a plan of the mat with
the cast plate thereon, but partly broken away,
and Fig. 5 is a section on the line 5—5 of Fig. 4.
The indicia l, of any desired form, generally
are adhesively attached at 2 to the mat 3, and
the plate 4 is cast thereon. The word “indicia”
20 is to be considered as a term of convenience, to
be construed as covering any shape which the
operator wishes to have appear on the plate.
Considerable di?iculty has been encountered
heretofore in removing the indicia I from the re
cesses of the plate 4, because the indicia are
stilt, and too impervious to water or other liquid
that might tend to soften them and make them
readily removable, even if fashioned from card
board or equivalent material. This I propose to
30 remedy by making the indicia pliable or readily
bendable, and eagerly absorptive of Water or
other liquid that will soften them. When this
is done, the indicia may be removed readily from
the recesses of the plate 4. Blotting paper is the
preferred material from which the indicia I are
made, and the blotting paper is gummed on one
2
(01. 41-25)
side, whereby the indicia may be adhesively at
tached to the mat 3 or its equivalent, as easily
as a postage stamp, the indicia simply being
moistened on the gumme'd side and affixed to the
mat.
.
5
What is claimed is:
1. A method of making a stereotype plate,
comprising casting the plate on blotting paper
indicia which are eagerly absorptive, and mois
tening the indicia to facilitate their removal from
the recesses of the plate.
2. A step in the preparation of a stereotype
plate from a metal casting containing blotting
paper indicia embedded therein, which comprises
softening the indicia in the recesses of the plate.
3. A step in the preparation of a stereotype
plate from a metal casting containing blotting
0
paper indicia embedded therein, which comprises
wetting the indicia within the recesses of the
plate.
20
4. In a device for use in the casting of a stereo
type plate from metal, a mat, and indicia de
tachably secured to the casting surface of the
mat, the indicia being formed of a material
insoluble in water but eagerly absorptive of water
and capable of being softened thereby, whereby
the indicia can be picked out of the plate, gener
ally in one piece, as distinguished from a re—
moval by solution, the opposite surface of the
mat being exposed as to said material.
30
5. A device for use in the casting of a stereo
type plate, constructed as set forth in claim 4,
and wherein the indicia material is blotting
paper.
ROBERT DAVID GOULD.
3;)
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