IMPROVEMENTS IN BRONZING OR DECORATING WOOD, PORCELAIN, GLASS, METAL, AND OTHER MATERIALS
Year: 1878

page_text: LETTERS PATENT to Henry Bernoulli Barlow, of Manchester, in the County of
Lancaster, Patent Agent, for the Invention of "IMPROVEMENTS IN BRONZING
OR DECORATING WOOD, PORCELAIN, GLASS, METAL, AND OTHER MATERIALS."
A communication from abroad by Professor Rudolph Boettger, Doctor of
Philosophy, of Frankfort-on-the-Main, Germany.
Sealed the 14th March 1879, and dated the 30th September 1878.
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli Barlow at
the Office of the Commissioners of Patents on the 30th September 1878.
HENRY BERNOULLI BARLOW, of Manchester, in the County of Lancaster, Patent
Agent. "IMPROVEMENTS IN BRONZING OR DECORATING WOOD, PORCELAIN, GLASS,
METAL, AND OTHER MATERIALS." A communication from abroad by Professor
Rudolph Boettger, Doctor of Philosophy, of Frankfort-on-the-Main, Germany..
This Invention consists in the use of an improved solution for causing the bronze
or other coloured powder to adhere to the article to be decorated or coated. The
solution consists of a concentrated solution of soluble glass prepared with potash
or a silicate of potash, and of a strength of about 30 degrees of Beaume's
bydrometer.
The article to be bronzed or decorated is first coated with a very thin film or
layer of the solution of soluble glass, which is applied by a soft paint brush or other
suitable means, and the bronze or other powder is applied through a sieve or other
means; the articles are then dried by exposure to the atmosphere or artificial heat,
after which the excess of powder that has not been absorbed by the soluble glass is
removed by a brush or other equivalent. The bronze or other powder so applied
will resist the effects of heat and of washing with alcohol, or of polishing by steel
or agate burnishers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Bernoulli Barlow in the Great Seal Patent Office on the 28th
March 1879.
HENRY BERNOULLI BARLOW, of Manchester, in the County of Lancaster, Patent
Agent.
"IMPROVEMENTS IN BRONZING OR DECORATING WOOD, PORCELAIN, GLASS,
METAL, AND OTHER MATERIALS." A communication from abroad by Professor
Rudolph Boettger, Doctor of Philosophy, of Frankfort-on-the-Maine, Germany.
This Invention consists in the use of an improved solution for causing the bronze
or other coloured powder to adhere to the article to be bronzed, decorated, or coated.
The solution consists of a concentrated solution of soluble glass, prepared with
potash or a silicate of potash, and of a strength of about 30 degrees of Beame's
hydrometer.
The article to be bronzed or decorated is first coated with a very thin film or
layer of the solution of soluble glass, which is applied by a soft paint brush or other
suitable means, and the bronze or other powder is applied through a sieve or other
Imeans; the articles are then dried by exposure, to the atmosphere or artificial heat,
after which the excess of powder that has not been absorbed by the soluble glass is
removed by a brush or other equivalent. The bronze or other powder so applied
will resist the effects of heat and of washing with alcohol, or of polishing by steel
or agate burnishers.
This Invention is particularly beneficial for decorating iron and porcelain stoves,
inasmuch as the bronzing or other powder will not be affected by the heat of the
stove.
The gilding on the frames of pictures and looking glasses when worn can also be
restored in a few minutes by this process.
Having thus stated the nature and particulars of the Invention communicated to
me by the within-named Professor Rudolph Boettger, I declare that I claim, the
improved mode of bronzing or decorating wood, porcelain, glass, metal, and other
materials as described.
In witness whereof, I, the said Henry Bernoulli Barlow, have hereunto set my
hand and seal, this Twenty-seventh day of March, One thousand eight
hundred and seventy-nine.