An Improvement in or applicable to Anti-fouling Compositions and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improvement in or applicable to Anti-fouling Compositions
and the like.
I, JOSEPH FRANCIS DELL, of 88, Dalston Lane, London, L.F.P.S., and L.S.A.,
London, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improvement in or applicable to antifouling com-
positions or to paints usable as such and the like, with the object of rendering
such compositions better effective in attaining their intended object, namely, the
prevention of animal and vegetal matter from adhering to and fouling the under-
water part of ships' bottoms and other articles, than are such compositions at
present in use.
either
both
or
To this end, the invention consists in combining with such compositions, either
perchloride of mercury or any other suitable mercuric preparation operative as a
the growth
germicide
as regards animal vegetal matter, whereby
of such matters and their adherence to and accumulation on the ship's bottom will
be prevented, and the stated object of the invention will be obtained.
and
I do not confine myself to any particular proportions of the mercuric preparation
used in respect to the other ingredients of the antifouling composition, as various
proportions thereof may be used.
L
1900
DAY, DAVIES & HUNT,
artered Patent Agents, 321, 'High Holborn, London, W.C.,
Agents for the Applicant.
An Improvement in or applicable to Anti-fouling Compositions
and the like.
I, JOSEPH FRANCIS DELL, of 88, Dalston Lane, London, L.F.P.S., and L.S.A.,
London, 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 relates to an improvement in or applicable to antifouling paints
and like preservative compositions for ships' bottoms and other under-water objects
or for preventing the destruction of wood by dry and wet rot or the ravages of
insects, and has for its object the rendering of such paints and compositions better
effective than at present in attaining their stated object, by incorporating therewith
077

page_text: a germicide as regards both animal and vegetal life, whereby, as regards
ships bottoms, pier supports and other under-water objects, for example,
the growth of sea-weeds, barnacles and other animal and vegetal matter
will be wholly prevented, as, consequently, will their adherence to and
accumulation on the ship's bottom or other said object, which, further, will pre-
vent the paint or composition from decomposition or deterioration and will pro-
long its preservative qualities.
To this end, the invention consists in combining with the ordinary constituents
of antifouling paints or like preservative compositions, say, for example, whitelead,
turpentine, oils and coloring matter, or Stockholm, coal and other tars, either
mercury or perchloride of mercury as a germicide addition.
I do not confine myself to any particular proportion of the germicide addition
used in respect of the other ingredients of the paint or other preservative com-
position, (which latter ingredients may be used in their ordinary or in any suitable
proportions,) as various proportions of such addition may be used. I have, how-
ever, found that three drachms of the germicide (when using the perchloride) to
about 1 pound of the other constituents of ships' paint give perfectly satisfactory
results, but even a less proportion of the germicide addition may be used with satis-
factory results.
The respective ingredients of the improved paint or composition are compounded
together in the manner in which the ordinary constituents of such paints or com-
positions are admixed, the mercury or mercuric perchloride being rubbed down
to a fine powder in a mortar and mixed with the other ingredients, care being
taken as to the handling of the materials used.
For a composition usable for preserving wood from rot, I use a solution of the
mercuric perchloride and of ammonium chloride, a solution of 1 in 1000 to 1 in 500
will have the desired effect.
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 combination with antifouling paints or like preservative compositions,
of mercury or mercuric perchloride, as a germicide addition.
2. As a new article of manufacture, an antifouling paint compounded of white-
lead, turpentine, oils, coloring matter and mercury or mercuric perchloride as set
forth.
Dated thi
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.