An Improved Antifouling Composition for Ships' Bottoms or the like.
Year: 1898

page_text: Date of Application, 1st Feb., 1898
Complete Specification Left, 29th Oct., 1898-Accepted, 23rd Dec., 1898
PROVISIONAL SPECIFICATION.
An Improved Antifouling Composition for Ships' Bottoms or the like.
We, SAMUEL WARNER, of Regent Gardens, Regent Street, Colour Maker, and
CHARLES FREDERICK WILLIAM PERRY, of 74, English Street, Master Mariner,
both in Hull, in the County of Yorkshire, do hereby declare the nature of this
invention to be follows:-
The object of our invention is to produce an improved anti-fouling composition
for application to the bottom's or other suitable parts of ships or the like, which
come in contact with sea water, for the purpose of preventing for a longer period
than has hitherto been possible the growing and adhesion of moss, grass, barnacles
or the like which accumulate and adhere to the parts of vessels which are con-
tinually in contact with sea water.
Hitherto anti-fouling compositions have only retained their strength or nature
for about from three to five months, after which weeds or the like have begun
to adhere to the ship's bottom, particularly if on a long voyage, and at times
when it has not been convenient to go into dry dock and he scraped and re-
coated, our improved composition retains its anti-fouling qualities for a consider-
able period, possibly at least twelve months, and during that time effectually
prevents the accumulation of grass, weeds, barnacles or the like, by this means
the speed of the vessel is not reduced as is the case when such accumulations take
place, therefore there is a saving effected in the consumption of fuel.
For the purpose of our invention we employ the following ingredients, riz.:-
Copper-oxichloride, oxide of iron, red lead, arsenic, kauri gum, shellac, boiled
linseed oil, turps, resin, coal tar naptha, wood naptha.
These ingredients are mixed together in suitable proportions and can be put
up in drums, bottles, casks or the like for use, the whole forming an anti-fouling
composition with the beforementioned qualities.
1000
30 An Improved Antifouling Composition for Ships' Bottoms or the like.
We, SAMUEL WARNER, of Regent Gardens, Regent Street, Colour Maker, and
CHARLES FREDERICK WILLIAM PERRY, of 74, English Street, Master Mariner,
both in Hull, in the County of Yorkshire, do hereby declare the nature of this
[Price 8d.1

page_text: invention, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
The object of our invention is to produce an improved anti-fouling composition
for application to the bottoms or other suitable parts of ships or the like which
come in contact with sea water, for the purpose of preventing for a longer period
than has hitherto been possible the growing and adhesion of moss, grass, barnacles
or the like which accumulate and adhere to the parts of vessels which are con-
tinually in contact with sea water.
Hitherto antifouling compositions have only retained their strength or nature
for about from three to five months after which weeds or the like have begun
to adhere to the ships' bottom, particularly if on a long voyage and at times
when it has not been convenient for the ship to go into dry dock and be scraped
and re-coated; our improved composition retains its anti-fouling qualities for
a considerable period, possibly at least twelve months, and during that time
effectually prevents the accumulation of grass, weeds, barnacles or the like, by
this means the speed of the vessel is not reduced, as is the case when such accu-
mulations take place, therefore there is a saving effected in the consumption of
fuel.
For the purpose of our invention we employ the following ingredients viz.:-
Copper oxichloride, oxide of iron, red lead, white arsenic, kauri gum, or other
suitable gum or gums, shellac, boiled linseed oil, resin, coal tar naphtha, or shale
naphtha, word naphtha or methylated spirits and with or without turps.
Taking twenty one gallons of the composition as an instance the above ingre-
dients are mixed together in approximately the following proportions:-Copper
oxichloride, 30 lbs.; oxide of iron 21 lbs.; red lead 7 lbs.; white arsenic 7 lbs. ;
boiled linseed oil 2 gallons; resin 56 lbs.; kauri gum lbs.; coal tar naptha
6 gallons; shellac 4 lbs.; wood naptha of a gallon.
The composition is more satisfactorily made by mixing the ingredients in the
following manner:-The copper oxichloride, oxide of iron, red lead and white
arsenic are mixed together, the boiled linseed oil being added and the whole
ground to a paste, the kauri gum and resin are run together by heat or other
suitable means and the coal tar naphthu is added and mixed with them; the
shellac is dissolved in the wood naphtha, the rest of the ingredients are then added
and the whole well mixed together, after which it can be put up in drums, bottles,
casks or the like for use, the whole thereby forming an anti-fouling composition 3
with the properties before described.
The copper oxichloride may be mixed with other substances of an adhesive
nature if desired, but we mention the above ingredients as being most suitable.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we 4
claim is:-
1. An antifouling composition consisting of copper oxichloride, oxide of iron,
red lead, white arsenic, kauri gum, shellac, boiled linseed oil, resin, coal tar
naphtha and wood naphtha, and with or without turps, in the proportions
approximately as given, for the purposes described.
2. In antifouling compositions the employment of copper oxichloride, mixed
with the above or other ingredients, for the purposes described.
4
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicants.