Improvements in Filters.
Year: 1899

page_text: PROVISIONAL SPECIFICATION
Improvements in Filters.
I, EDWARD VON RITTERSHAUSEN, of Kagran, near Vienna, m-the Empire of
Austria, Director of the Filter Factory "Delphin," do hereby declare the nature
of this invention to be as follows.-
This invention relates more particularly to filtering appliances in which the
filtering medium consists of a porous artificial silicate, and it has for its object
to provide filters which can be handled like bottles when pouring out or drinking
the filtered liquid from them
According to this invention cup-shaped bodies, of porous artificial silicate,
have then top edge tightly connected with a neck made of a material imper-
vious to water This neck may be of glass, or of a ceramic material, in which
case it is cemented to the bottle body; or it may be of wood, bone, ebonite, etc,
and the bottle body may have a metal cover tightly secured to it and provided
with a tapped hole into which the neck 18 screwed
It is obvious however, that a bayonet joint may be used instead of the screw
connection
Improvements in Filters.
I, EDWARD VON RITTERSHAUSEN, of Kagran, near Vienna, in the Empire of
Austria, Director of the Filter Factory "Delphin," do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement, reference being
had to the accompanying drawings and to the letters and figures marked thereon,
that is to say.
This invention relates more particularly to filtering appliances in which the
filtering medium consists of a porous artificial silicate, and it has for its object
to provide filters which can be handled like bottles when pouring out or drinking
the filtered liquid from them
According to the invention, cup-shaped bodies, of porous artificial silicate,

page_text: have their top edge tightly connected with a neck made of a material imper-
vious to watei This neck may be of glass, or of ceramic material, in which
case it is cemented to the body, or it may be of wood, bone, ebonite, etc, and
the body may have a metal cover tightly secured to it and provided with a tapped
hole into which the neck is screwed The whole thus forms what may be termed
a filter-bottle which, when immersed in a liquid, will become filled by such
liquid filtering through its walls
The annexed diawing shows, in sectional elevation, a filtering bottle, the filter-
ing material of which is sufficiently porous that the pressure of a liquid into
which the bottle is placed upright, with its mouth above the surface, will cause
a certain portion of the liquid to pass through the filtering medium.
In the drawing, a is the cup shaped body of porous artificial silicate, and is
the neck made of impervious or glazed ceramic material, such as porcelain, both
parts being connected by means of a 1abbet joint containing a layer of cement e
In less poious filters of this description, the rate of entiance of the liquid may
be increased by sucking at the mouth of the bottle neck and thus dinking the
filtered liquid.
It will be readily understood that the filter shown in the drawing may, as soon
as a sufficient quantity of liquid has passed through its poious sides, be taken
by the neck and its contents poured into a drinking vessel
Instead of the screw connection above referred to a bayonet joint may be used
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:-
A filter or filter-bottle, characterized by the combination with a cup-shaped
body of porous artificial silicate, of an impervious neck tightly connected with
the said body, substantially as described.