Improvements in Floats.
Year: 1890

page_text: Date of Application, 17th May, 1890
Complete Specification Left, 12th Feb., 1891-Accepted, 14th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Floats.
I, ALPHONSE OLIVIER DUBAUT, of 84, Boulevard Sébastopol, Paris, France,
Manufacturer of Articles of Celluloid, do hereby declare the nature of this
invention to be as follows:-
The objection to floats hitherto whatever may be the use for which they are
intended, is that they have either been made very heavy for the sake of strength,
or else have been liable to be softened by the water in which they are immersed.
The first objection particularly applies to the metal ball floats used in tanks and
cisterns which require to be made of relatively thick metal in order to obtain the
necessary strength, the additional weight being compensated for by increasing the
displacement of the float in order to ensure the necessary buoyancy.
The deterioration of the float by the absorption of water more especially occurs
in the case of floats made of light material, such as the corks and quills used by
anglers, which become softened and otherwise damaged by long use.
My invention has for its object to obviate the above objections and it consists
essentially in the employment of celluloid and other analogous materials for the
manufacture of floats generally.
Floats made of this material are very light and strong and are perfectly impervious
to water however long they may be immersed.
.
It will be understood that the invention is entirely independent of the form and
construction of the float as well as of the means employed for manufacturing the
same, which will necessarily vary according to the size and kind of float required.
The float may be made in one or several parts as desired.
The invention is applicable not only to the floats used by anglers and to buoys
and floats for tanks but to all kinds of floats used either in water or other liquid for
any purpose whatever.
Dated this 17th day of May 1890.
A. O. DUBAUT.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Floats.
I, ALPHONSE OLIVIER DUBAUT, of 84, Boulevard Sébastopol, Paris, France,
Manufacturer of Articles of Celluloid, 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 :-
The objection to floats hitherto, whatever may be the use for which they are
intended, is that they have either been made very heavy, for the sake of strength,
or else have been liable to be softened by the water in which they are immersed.
The first objection particularly applies to the metal ball floats used in tanks or
cisterns, which require to be made of relatively thick metal in order to obtain the
necessary strength, the additional weight being compensated for by increasing the
displacement of the float in order to ensure the necessary buoyancy..
The deterioration of the float by the absorption of water more especially occurs
in the case of floats made of light material, such as the corks and quills used by
anglers, which become softened, and otherwise damaged, by frequent use.
My invention has for its object to obviate the above objections, and it consists

page_text: essentially in the employment of celluloid and other analogous materials for the
manufacture of floats generally.
Floats made of this material are very light and strong and are perfectly impervious
to water however long they may be immersed.
It will be understood that the invention is entirely independent of the form and
construction of the float as well as of the means employed for manufacturing the
same, which will necessarily vary according to the size and kind of float
required.
虚
The float may be made in one or several parts, as desired.
The invention is applicable not only to the floats used by anglers and to buoys
and floats for cistern valves but to all kinds of floats used either in water or other
liquid for any purpose whatever.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The manufacture of floats generally, and particularly anglers' floats and ball
floats for cisterns, of celluloid or analogous material, as described and for the
purpose specified.
Dated this 12th day of February 1891.
A. O. DUBAUT.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.