AN IMPROVED ANTI FOULING AND PRESERVATIVE COMPOSITION OR PAINT FOR COATING SHIPS BOTTOMS AND IRON AND WOODEN STRUCTURES GENERALLY
Year: 1885

page_text: Structures generally.
I JOHN SACHEVERELL GISBORNE of Walthamstow in the County of Essex
Electrical Engineer do hereby declare the nature of said invention for "AN
IMPROVED ANTI FOULING AND PRESERVATIVE COMPOSITION OR PAINT FOR COATING
SHIPS BOTTOMS AND IRON AND WOODEN STRUCTURES GENERALLY" to be as
follows:-
:—
This invention consists of a peculiar anti fouling or anti corrosive composition or
paint the essential ingredients of which are Mercury, in the form of quicksilver,
and chalk, rubbed together until the quicksilver is "killed." In carrying out my
said invention I employ the following ingredients or their chemical equivalents in
or about the proportions given although the relative quantities may be varied more
or less.
'
Mercury (Quicksilver)
-
10 lbs.
.Litharge
9 lbs.
Blend, Zinc white, White or Red Lead or other like
material or Compound
14 lbs.
-
15 lbs.
Chalk (by preference in a finely divided state)
Boiled Linseed Oil sufficient to form a pigment of
the required consistency.
The process of admixture I adopt is as follows or nearly so:-
I mix the Mercury (Quicksilver) and Chalk together and rub or triturate such
mixture until the quicksilver is disintegrated or "killed." I then mix the Litharge,
Blende, and other ingredients, with the mixture of quicksilver and Chalk and add
thereto Boiled Linseed Oil in sufficient quantity to form a pigment of suitable
consistency. If desired any known coloring material may be used.
The said composition or paint may be applied in the usual way by a brush or
otherwise.
Dl the
ST100K

page_text: Paint for Coating Ships' Bottoms, and Iron and Wooden
Structures generally.
I JOHN SACHEVERELL GISBORNE of Walthamstow in the County of Essex.
Electrical Engineer 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 consists of a peculiar anti-fouling and preservative composition
or paint one of the ingredients of which consists of Mercury in the form of
"killed" quicksilver. The quicksilver may be "killed" by mixing it with chalk or
other suitable substance and rubbing or triturating the two together until the
quicksilver is completely disintegrated. I have found the following ingredients or
their equivalents to give the best results when employed in or about the propor-
tions set forth that is to say:-
Mercury (Quicksilver)
Chalk (by preference in a finely divided state)
Litharge
Blend, or Zinc White, or White or Red Lead or
equivalent substance or compound
Boiled Linseed Oil sufficient to form a composition
or paint of the required consistency.
10 lbs.
15 lbs.
9 lbs.
14 lbs.
In preparing my said improved anti-fouling and preservative composition or
paint I first mix together the Mercury (quicksilver) and the chalk or other
substance employed for "killing" the quicksilver and well rub or triturate the
two together until the quicksilver is completely disintegrated or "killed." I then
mix or incorporate therewith the Litharge Blend or Zinc white or white or red
lead or any one or more of them and finally stir into the mass Boiled Linseed Oil
in sufficient quantity to form a composition or paint of suitable consistency for
application in the usual way by a brush or otherwise which composition or paint
may if desired be coloured according to taste by the addition thereto of any suit-
able colouring matter.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. The application and use of mercury in the form of "killed" quicksilver in
the preparation of anti-fouling and preservative composition or paint substantially
as specified.

page_text: 2. An anti-fouling and preservative composition or paint consisting of "killed"
quicksilver in combination or admixture with Litharge Blend or Zinc White, white
or red Lead or any one or more of those substances or their equivalents in or
about the proportions given and boiled linseed oil sufficient to reduce the whole to
suitable consistency for application with a brush or otherwise with or without
the addition of coloring matter as required substantially as specified.
Dated this Oth dow of Ontahan 1885