A NEW OR IMPROVED PROCESS FOR ENAMELLING MOULDED ARTICLES OF CERAMIC AND " OTHER REFRACTORY MATERIALS
Year: 1883

page_text: LETTERS PATENT to Charles Denton Abel of No: 28 Southampton Buildings
Chancery Lane in the county of Middlesex for an Invention of "A NEW OR
IMPROVED PROCESS FOR ENAMELLING MOULDED ARTICLES OF CERAMIC AND
"
OTHER REFRACTORY MATERIALS communicated to him from abroad by Arthur
PROVISIONAL SPECIFICATION left by the said Charles Denton Abel at the
Office of the Commissioners of Patents on the 14th June 1883.
"
CHARLES DENTON ABEL of No 28 Southampton Buildings, Chancery Lane in the
county of Middlesex 'A NEW OR IMPROVED PROCESS FOR ENAMELLING MOULDED
ARTICLES OF CERAMIC AND OTHER REFRACTORY MATERIALS [communicated to him
from abroad by Arthur Schierholz of Plaue, Thuringia in the German Empire.]
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According to the present invention, ceramic articles, in particular statuettes,
animals, flowers or fruit, modelled in porcelain or earthenware, or in other suitable
refractory materials, after being burnt or baked, are first coated or painted in the
usual way with enamel colors of a syrupy consistency, and, when this coating has
dried somewhat, so as to be still sticky, it is thickly strewn over with small solid
beads of transparent glass, which may or may not be colored, and which adhere to
the enamel coating. The moulded article is then heated in a muffle until the
enamel colors, as also the glass beads, have become sufficiently fused, whereby the
ceramic article is provided with a coating consisting of the enamel colors combined
with a peculiar refracting vitreous covering that imparts great brilliancy and
freshness to the enamel colors, while the latter serve as a medium for uniting such
vitreous coating effectually with the ceramic article.
Although the process is specially applicable to articles moulded in ceramic
material, yet it is also applicable to articles moulded in glass and other materials to
which enamel colors are applicable, that will sufficiently withstand the heat required
for fusing the enamel and vitreous coatings

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Denton Abel in the Great Seal Patent Office on the
7th December 1883.
ARTICLES OF CERAMIC AND OTHER REFRACTORY MATERIALS
"
CHARLES DENTON ABEL of N° 28 Sonthampton Buildings, Chancery Lane, in the
County of Middlesex "A NEW OR IMPROVED PROCESS FOR ENAMELLING MOULDED
A communication to
me from abroad by Arthur Schierholz of Plaue, Thuringia in the German Empire
According to the present invention, ceramic articles, in particular statuettes,
animals, flowers or fruit, modelled in porcelain or earthenware, or in other suitable
refractory materials, after being burnt or baked, are first coated or painted in the
usual way with enamel colors of a syrupy consistency, and, when this coating has
dried somewhat, so as to be still sticky, it is thickly strewn over with small solid
beads of transparent glass, which may or may not be colored, and which adhere to
the enamel coating. The moulded article is then heated in a muffle until the
enamel colors, as also the glass beads, have become sufficiently fused, whereby the
ceramic article is provided with a coating consisting of the enamel colors combined
with a peculiar refracting vitreous covering that imparts great brilliancy and
freshness to the enamel colors, while the latter serve as a medium for uniting such
vitreous coating effectually with the ceramic article.
Although the process is specially applicable to articles moulded in porcelain yet
it is also applicable to articles moulded in ceramic material, glass and other materials
to which enainel colors are applicable, that will sufficiently withstand the heat
required for fusing the enamel and vitreous coatings.
The application of the process to glass will, however, present difficulties, owing
firstly to the tendency of glass articles, more particularly when thin, to warp and
get out of shape on being reheated, and secondly on account of the possibility of
the articles becoming devitrified during such reheating, whereby the enamel colors
would become very much deteriorated.
It should be mentioned, in conclusion, that the above described process is
particularly applicable with great advantage for decorating plastic productions in
ceramic material, such as animals, statuettes, flowers, fruit and other such objects,
as the colors of these are thereby greatly heightened and rendered more similar to
nature, without the cost of manufacture being thereby materially increased.
Having thus described the nature of the said invention and in what manner the
same is to be performed as communicated to me by my foreign correspondent, I
claim :
The herein described process for decorating plastic productions of ceramic
material, in particular of porcelain, consisting in first coating the burnt or baked
article with ordinary enamel colors, and while these colors are still sticky, strewing
over the same small solid glass beads, after which the article is subjected to heat in
a muffle until the said covering melts sufficiently to become combined in one with
the surface of the article.
In Witness whereof I the said Charles Denton Abel have hereunto set my
hand and seal this seventh day of December in the year of our Lord One thousand
eight hundred and eighty three.
CHA. D. ADE
(L.S.)