AN IMPROVED WATERPROOF AND ANTI-CORROSIVE COMPOSITION SUITABLE FOR COATING SHIPS' BOTTOMS AND SUCH LIKE PURPOSES to be as follows:
Year: 1885

page_text: We, EDWIN LEWIS KITCHINGMAN, of N° 268 Wellington Street, Collingwood, in
the Colony of Victoria, Pyrites burner, and ARTHUR ANDREWS, of Albury, in the
Colony of New South Wales, Surgeon, do hereby declare the nature of said
invention for "AN IMPROVED WATERPROOF AND ANTI-CORROSIVE COMPOSITION
SUITABLE FOR COATING SHIPS' BOTTOMS AND SUCH LIKE PURPOSES to be as
follows:-
"
Our improved water-proof and anti-corrosive composition has been designed
principally for the purpose of preserving the bottoms of ships but it is not confined
to this purpose as it is evident that it can be applied to the preservation of wood
and other surfaces.
Our composition consists of the following ingredients and by preference in the
following proportions, that is to say:
Tar
Oxide of iron
Rosin
•
Sugar of lead
;
21 pounds.
2 pounds.
1. Ounce.
2 Ounces.
We first place the tar in a suitable vessel over a fire and when it is heated to
just the boiling point we add the oxide of iron gradually so that it may become
thoroughly absorbed by the tar-then we add the rosin and when it has dissolved
we add the sugar of lead. When this last ingredient has dissolved we stir up the
mixture so as to make it into a homogeneous mass and then it is ready for use. It
may be drawn off into suitable packages and only requires to be heated in order to
make it fit for use.

page_text: The base of the composition is the oxide of iron and the tar. The rosin is used
simply to "set" it and the sugar of lead as a "dryer." Any other material that
will effect the same objects as the rosin and sugar of lead may be used as
substitutes for them but we prefer those we have named.
Dated this twentieth day of August One thousand eight hundred and eighty-
COMPLETE SPECIFICATION.
An Improved Waterproof and Anti-corrosive Composition
Suitable for Coating Ships' Bottoms and such like
Purposes.
We, EDWIN LEWIS KITCHINGMAN of N° 268 Wellington Street, Collingwood, in
the Colony of Victoria, Pyrites burner, and ARTHUR ANDREWS of Albury in the
Colony of New South Wales, Surgeon 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:-
Our improved waterproof and anti-corrosive composition has been designed
principally for the purpose of preserving the bottoms of ships but it is not confined
to this purpose as it is evident that it can be applied to the preservation of wood
and other surfaces.
Our composition consists of the following ingredients and by preference in the
following proportions, that is to say :-
Tar
Oxide of Iron
Rosin
Sugar of Lead
2 pounds.
2 pounds.
1 ounce:
2 ounces.
We first place the tar in a suitable vessel over a fire and when it is heated to
just the boiling point we add the oxide of iron gradually so that it may become
thoroughly absorbed by the tar; then we add the rosin and when it has dissolved
we add the Sugar of Lead. When this last ingredient has dissolved we stir up the
mixture so as to make it into a homogeneous mass and then it is ready for use.
It may be drawn off into suitable packages and only requires to be heated in order
to make it fit for use.

page_text: The base of the composition is the oxide of iron and the tar. The rosin is used
simply to "set" it, and the sugar of lead as a "dryer." Any other material that
will effect the same objects as the rosin and sugar of lead may be used as
substitutes for them but we prefer those we have named.
Coloring matter may be added to our composition to produce any tint or shade
required but such matter does not affect its character one way or the other.
If it is desired the composition may be used cold instead of hot and in that case
there must be sufficient ordinary shellac varnish added to the composition to liquify
it. It is more convenient to apply the composition when it is cold but it is more
efficient when it is applied hot.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is:—
A waterproof and anti-corrosive composition, consisting of the combination of
oxide of iron and tar with rosin and sugar of lead or with any other equivalent
material that will tend to "set" and " dry" the composition and either with
or without the addition of coloring matter or ordinary shellac varnish to such
combination of materials all substantially as and for the purposes herein described
and explained.