IMPROVEMENT FOR THE PROTECTION FROM FOULING OF IRON, STEEL AND WOODEN SHIPS BOTTOMS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I ALEXANDER RYRIE Church Street Hebburn on Tyne in the County of
Durham Painter do hereby declare the nature of my Invention for IMPROVEMENT
FOR THE PROTECTION FROM FOULING OF IRON, STEEL AND WOODEN SHIPS
BOTTOMS to be as follows:-I take
Ordinary commercial creosite oil
Scotch naphtha
Methylated spirits
Clear resin
-
Purple brown oxide of iron
8 galls.
4 galls.
4 galls.
1 cwt.
-
1 cwt.
The five ingredients are mixed together under a heat of not less than 65° of
Fahrenheit's thermometer which then form a composition in a liquid state and is
applied with a brush in the usual manner of paint when it is cold.

page_text: I ALEXANDER RYRIE, 7 Church St., Hebburn on Tyne, in the County of
Durham, Painter, do hereby declare the nature of my Invention for IMPROVEMENT
IN THE PROTECTION FROM FOULING OF SHIPS BOTTOMS and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:-
My Invention has for its object the making of a composition for coating iron,
steel, and wooden ships bottoms to prevent the growth and adhesion of "barnacles,"
"grass," and other sea-weeds.
While its chief use is for sea-going vessels it is also a good protective in fresh
water.
In carrying out my Invention I take as follows:-
One cwt. of clear resin,
Four gallons Scotch naptha,
One and a half cwts. purple or red oxide of iron,
Eight gallons of creosote oil, and
Four gallons of methylated spirit.
I mix the resin and Scotch naptha together in a pot or boiler-over a slow fire,
and properly protected to guard against their catching fire. After these are well
melted and incorporated together I then add gradually the oxide of iron, creosote
oil, and methylated spirit stirring all the time, and when the mixing is completed
the whole is transferred to a tank to cool. The composition is then ready to be
applied in the usual way with a brush like ordinary paint. It dries immediately
and the vessel may be put into the water as soon as the coating is put on.
Stockholm pitch may be used instead of the resin, but I prefer to use the latter.
And instead of the Scotch naptha any of the highly volatile mineral napthas or
spirits, such as American "gasoline or "benzine," may be used, and as the oxide
of iron is simply to give body to the composition any other similar substance such
as white-lead or oxide of zinc may be used in the place of that, but I prefer oxide
of iron for its cheapness.
Where the bottom of the ship is bare and requires two or more coats I use the
same composition for touching up or first coating but with less creosote oil, using
in that case from one to two gallons instead of eight.
While the above named proportions of the various ingredients are the best, yet
these may be varied to a moderate extent without seriously damaging the efficacy
of the composition.
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 the mixing of creosote oil with the other above named substances in, or
about, the proportions given for the purpose herein before specified.
Dated this 27th day of June 1884
ALEXANDER RYRIE.