An Improved Anti-fouling Preparation or Compound for the Preservation of Bright or Polished Metallic Surfaces.
Year: 1891

page_text: Date of Application, 27th Feb., 1891
Complete Specification Left, 27th Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Anti-fouling Preparation or Compound for the
Preservation of Bright or Polished Metallic Surfaces.
I, THOMAS HOLDEN of Hargreaves Street, Burnley, in the County of
Lancaster, Dentist, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object the manufacture and use of a compound to serve
as a protective coating or film to surfaces metals, such as gold, silver, and electro-
plate to prevent tarnishing.
For this purpose. I dissolve 160 grains of isinglass in 160 ounces of boiling-water
or in like proportion contained within a suitable cistern or vessel, the outer surface
of which is surrounded with boiling water for the space of half an hour, until the
isinglass is thoroughly dissolved by heat and agitation.
The preparation is now ready to be decanted, and hermetically scaled until
required for use.
The articles to be coated by the preparation or compound are first thoroughly
cleansed, and then dipped into the preparation; or if the articles are not desired to
be dipped, the preparation is applied by a brush, so as to produce a thin film or
protective coating over the surface of the articles.
For coating cutlery, service-plate, and other polished metallic surfaces on board-
ship, this preparation is particularly useful, as all tendency to foul or tarnish-
which is very great on account of the deleterious action of salt-water and the
surrounding atmosphere-is effectually prevented, and the articles preserved in
proper condition.
The film or coating may be rubbed over with a dry-cloth, without in any way
disturbing the film, or coating of the articles; whilst the preparation being colour-
less, tasteless, and perfectly harmless will not require to be washed from the surfaces
of the articles before being used.
Dated this 25th day of February 1891.
THOS. RICHMOND,
Arent
COMPLETE SPECIFICATION.
An Improved Anti-fouling Preparation or Compound for the
Preservation of Bright or Polished Metallic Surfaces.
I, THOMAS HOLDEN of 17, Hargreaves Street, Burnley, in County of Lancaster,
Dentist, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention has for its object the manufacture and use of a compound to serve
as a protective coating or film to surfaces of metals such as gold, silver and electro-
plate to prevent tarnishing.
For this purpose, I dissolve 160 grains of isinglass in 16 ounces of boiling
water, contained within a suitable cistern or vessel, the outer surface of which is
kept in a bath, preferably heated to 212 degrees of heat for the space of about half
an hour, until the isinglass is thoroughly dissolved by heat and agitation; or, the
same quantity of isinglass may be first dissolved in about four drams of acetic acid
before its admixture with the boiling water. The acetic acid not only more
thoroughly dissolves the isinglass but also greatly assists in the adhesion of the
compound to the surfaces of the articles upon which it may be coated.

page_text: The preparation is now ready to be decanted and hermetically sealed until
required for use. The articles to be coated by the preparation or compound are
first thoroughly cleaned, and then dipped into the preparation; or, if the articles
are not desired to be dipped, the preparation may be applied by a sponge or the
like, so as to produce a thin film or protective coating over the surfaces of the
articles.
For coating cutlery, service-plate, and other polished metallic surfaces on board
ship, this preparation is particularly useful, as all tendency to foul, which is very
great on account of the deteriorating action of salt-water, and the surrounding
atmosphere, is effectually prevented, and the articles preserved in proper
condition.
The film or coating may be rubbed over with a dry cloth, without in any way
disturbing the film or coating of the articles; whilst the preparation being colour-
less, tasteless, and perfectly harmless, will not require to be washed from the surfaces
of the articles before being used.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The preparation or compound for protecting metallic surfaces, substantially as
described.
Dated this 26th day of Novembar 1001
THOS. RICHMOND,
79, St. James' Street, Burnley, Agent.