relat
Year: 1899

page_text: Date of Application, 8th June, 1899
Complete Specification Left, 8th Mar., 1900-Accepted, 26th May, 1900
I, EUGEN LUDWIG BERNHARD BARON VON SCHNEIDER, Doctor of Philosophy,
of 11, Leubnitzerstrasse, Dresden, in the Empire of Germany, do hereby declare
the nature of this invention to be as follows:-
This invention for improvements in or relating to filters for steam and gases
relates more especially to filters for removing oil and other impurities from steam
and consists in a capillary tube arrangement forming the filtering medium,
through which the steam is passed and which filtering medium, owing to its
peculiar nature retains and separates the impurities from the steam. The experi-
ments made show that for this filtering operation the only material suitable is
one permeated by capillary tubes, the sides of which however must be porous.
The most suitable material is found to be Bengal cane. In consequence of its
natural construction the cane allows the steam to flow through its cells or pores,
without offering any appreciable resistance, and partly retains the cellular matters
of the impurities carried off by the steam, such as oil etc., the greatest part of
these however being removed in passing through the capillary tubes so that they
accumulate in front of the filters and can be got rid of by suifable apparatus
at any time. Instead of Bengal cane filters made of plastic substances such
as clay etc. can be suitably employed. These must be permeated by capillary
tubes, in order that the resistance offered to the steam flowing through may be
as small as possible, the capillary tubes must run as straight as possible in the
direction of the flow of steam.
If in consequence of prolonged use, the filtering materials mentioned above
should become-saturated with oil, they can be easily cleaned by means of any
substance capable of dissolving fatty matter, such as ether, benzine, etc.
It is quite obvious that gases can be equally well purified by the filters de-
scribed, the capillary tubes being as a matter of course narrower in proportion to
the greater mobility of the molecules.
Dated this Sth day of June 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C.,
Agents.

page_text: I, EUGEN LUDWIG BERNHARD BARON VON SCHNEIDER, Doctor of l'hilosophy,
of 11, Leubnitzerstrasse, Dresden, in the Empire of Germany, 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 for improvements in or relating to filters for steam and gases
relates more especially to filters for removing oil and other impurities from steam,
and consists in a capillary tube arrangement forming the filtering medium,
through which the steam is passed, and which filtering medium, owing to its
peculiar nature retains and separates the impurities from the steam. The experi-
ments made show that for this filtering operation the only material suitable is
one permeated by capillary tubes, the sides of which however must be porous.
The most suitable material is found to be Bengal cane. In consequence of its
natural construction the cane allows the steam to flow through its cells or pores,
without offering any appreciable resistance, and partly retains the cellular matters
of the impurities carried off by the steam, such as oil etc., the greatest part of
these however being removed in passing through the capillary tubes so that they
accumulate in front of the filters and can be got rid of by any suitable apparatus
at any time. Instead of Bengal cane filters made of plastic substances such
as clay etc. can be suitably employed. These must be permeated by capillary
tubes, in order that the resistance offered to the steam flowing through may be
as small as possible, the capillary tubes must run as straight as possible in the
direction of the flow of steam.
The production of filters from plastic materials can be effected, for example
in the following manner:-The plastic material is put into presses through which
a large number of wires pass so that the material is pressed round the wires. It
is then dried in the usual manner, and the plates fired and glazed on the outer
surfaces. In this way bodies are obtained through which a large number of
channels run, the sides of which are porous.
If in consequence of prolonged use, the filtering materials mentioned above
should become saturated with oil they can be easily cleaned by means of any
substance capable of dissolving fatty matter, such as ether, benzine, or the like.
It is quite obvious that gases can be equally well purified by the filters de-
scribed, the capillary tubes being as a matter of course narrower in proportion to
the greater mobility of the molecules.
In Figs. 1 and 2 of the accompanying drawing, a steam filter furnished with
bodies having capillary tubes is illustrated in longitudinal and cross section, as
introduced into a steam pipe. The filtering bodies a, pieces of Bengal cane,
for instance, are inserted tightly in the casing e, so that the steam if passing in
the direction of the arrow from d to e must flow through the filtering body a.
The impurities collect in the space f and can be drawn off from time to time by
means of the pipe g.
It is thus easily seen that this filtering body can be easily introduced into any
steam conduit, and be conveniently replaced by a fresh one as soon as the filtering
material is impregnated with oil. This material can however, just as easily be
cleaned by being treated with a solution of any substance, such as ether, ben-
zine, etc. which will desolve grease.
It is clear that gases can be purified in the same manner as steam by means
of the filter here described.

page_text: 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 improved steam and gas filter according to which for the purpose of effect-
ing filtration, bodies are employed which are furnished with capillary tubes or
pores the sides of which must be porous, these, tubes running as far as possible
in a straight line.
Dated this 8th day of March 1900
WHEATLEY & MACKENZIE,
40, Chancery. Lane, London, W.C.,
Agents.