IMPROVEMENTS IN GILDING AND DECORATING MOULDINGS FOR PICTURE, LOOKING GLASS, AND OTHER FRAMES
Year: 1878

page_text: LETTERS PATENT to Israel Koch, of the Firm of Koch Brothers, of Amsterdam,
Holland, for the Invention of "IMPROVEMENTS IN GILDING AND DECORATING
MOULDINGS FOR PICTURE, LOOKING GLASS, AND OTHER FRAMES."
Sealed the 25th April 1879, and dated the 16th November 1878.
PROVISIONAL SPECIFICATION left by the said Israel Koch at the Office of
the Commissioners of Patents on the 16th November 1878.
"IM-
ISRAEL KOCH, of the Firm of Koch Brothers, of Amsterdam, Holland.
PROVEMENTS IN GILDING AND DECORATING MOULDINGS FOR PICTURE, LOOKING
GLASS, AND OTHER FRAMES."
This Invention has for its object improvements in gilding and decorating
mouldings for picture, looking glass, and other frames.
I prepare the moulding or frame to be decorated by applying to it, or to such
parts of it as are to have the appearance of being gilt, silver or other metal leaf,
which I lay on in the usual manner of gilding with metal leaf. The metal leaf is
then coated with a transparent varnish of a yellow tint, such that the leaf seen
through the layer of varnish has the effect of burnished gold. Upon the surface
thus prepared I produce a pattern in the following manuer:-I take a lithographic
stone and sketch upon it with a black lead pencil the pattern which I desire to
produce upon the frame or moulding. I then by hand fill in the intervals of the
pattern with lithographic ink upon the stone, leaving only those parts of the
pattern which it is desired should remain bright upon the frame or moulding.
With this stone I print by the lithographic process a suitable varnish on to a
transfer paper, prepared with tapioca and gelatine. The impression being dry, the
paper is cut into strips of the width of the pattern and is softened by steam.
DJ1

page_text: In this state the paper is laid upon the moulding and is pressed down so as to
cause the varnish to adhere, after which the paper is stripped off. Gold bronze
powder is then dusted on to the frame or moulding, and it adheres to the varnish,
giving a dull appearance to these parts which form the ground, whilst the bright
metal and varnish below are left bare in the parts which appear as the pattern.
Frames or mouldings ornamented in this manner may he washed and cleaned
from time to time without injury to the ornament.
In some cases I prepare the moulding or frame by applying to it a coating of
black varnish, and I then produce the pattern by operating as already described,
leaving the black to appear through a ground produced with gold bronze powder.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Israel Koch in the Great Seal Patent Office on the 15th May
1879.
'
ISRAEL KOCH, of the Firm of Koch Brothers, of Amsterdam, Holland.
" IM-
PROVEMENTS IN GILDING AND DECORATING MOULDINGS FOR PICTURE, LOOKING
GLASS, AND OTHER FRAMES."
This Invention has for its object improvements in gilding and decorating
mouldings for picture, looking glass, and other frames. I prepare the moulding or
frame to be decorated by applying to it, or .to such parts of it as are to have the
appearance of being gilt, silver or other metal leaf, which I lay on in the usual
manner of gilding with metal leaf. The metal leaf is then coated with a transparent
varnish of a yellow tint, such that the leaf seen through the layer of varnish has
the effect of burnished gold Upon the surface thus prepared I produce a pattern
in the following manner:-I take a lithographic stone and sketch upon it with a
pencil the pattern which I desire to produce upon the frame or moulding. I then
by hand fill in the intervals of the pattern with lithographic ink upon the stone,
leaving only those parts of the pattern which it is desired should remain bright
upon the frame or moulding. With this stone I print by the lithographic process a
suitable varnish on to a transfer paper prepared with tapioca and gelatine. The
impression being dry, the paper is cut into strips of the width of the pattern, and
is softened by steam. In this state the paper is laid upon the moulding and is
pressed down so as to cause the varnish to adhere, after which the paper is stript
off. Gold bronze powder is then dusted on to the frame or moulding and it adheres
to the varnish, giving a dull appearance to these parts which form the ground,
whilst the bright metal and varnish below are left bare in the parts which appear
as the pattern.
Frames or mouldings ornamented in this manner may be washed and cleaned
from time to time without injury to the ornament.
In the same way also I decorate mouldings which have been gilt in the ordinary
way by transferring on to them a pattern printed in varnish, and dusting gold
bronze powder thereon.
In some cases I prepare the moulding or frame by applying to it a coating of
black or other opaque varnish, and I then produce the pattern by operating as
already described, leaving the black to appear through a ground produced with
gold bronze powder.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I claim, my processes for
gilding and decorating mouldings for picture, looking glass, and other frames,
substantially as herein described.
In witness whereof, I, the said Israel Koch, have hereunto set my hand
and seal, this Fifth day of May, in the year of our Lord One thousand eight
hundred and seventy nine.
I. KOCH (L.S.)