IMPROVEMENTS IN FILTERING APPARATUS FOR GAS, AIR, STEAM AND OTHER FLUIDS
Year: 1884

page_text: I EMIL CAPITAINE of Berlin in the German Empire now at 89 Chancery
Lane London do hereby declare the nature of the said invention for IMPROVEMENTS
IN FILTERING APPARATUS FOR GAS, AIR, STEAM AND OTHER FLUIDS to be as
follows:
This invention refers to improvements in filtering apparatus and consists of
an exterior framework or case which may be constructed of metal, wood, bricks, or
other suitable material, and the filtering medium which is formed of wire gauze
with or without one or more layers of fibrous materials, such as wadding, cotton,
cloth, wool, etcetera.
Referring to the accompanying Sheet of illustrative drawings:-
Figs 1, 2, and 3 are respectively a sectional elevation, a plan, and a vertical cross
section of my improved filtering apparatus.
A are pockets or pouches formed of the filtering material as for instance, wire
gauze and cloth The filtering material in the form of pouches is closed on all but
the
upper side, it is fastened to the case G by a frame E held in position by screw
fastenings as shewn in Fig 4. The gas, air, steam or other fluid to be filtered
passes through the filtering material of which the pouches are formed, in the
direction shewn by the arrows. A flap B is employed to separate the space for the
air, gas, etcetera, already filtered from that which is unfiltered.
The drawing illustrates the apparatus as made with all the pouches in connection
with each other, they may however be in a disconnected form each having its
separate frame. To avoid compression of the filtering material, strengthening
pieces K are fixed. thereto, to hold it in position.
Figs 6, 7 and 8 represent a filter in accordance with this invention in the form of
a pillar, the filtering material being disc shaped. The discs are separated from
each other by intermediate layers m, n, connected to the discs by paste, or glue,
etcetera, a series of these discs and intermediate layers forming a pillar which may
be covered by a shell O.
The entrance of the fluid to be filtered is through openings in the pouches whilst
the outlet is through the channel S formed so that the spaces for the filtered fluid
are in communication with each other as shewn in Fig 8 which is a section
through the line c, d of Fig 6, the fluid being finally discharged from the lowest
chamber through the pipe P as shewn in the drawing.

page_text: I, EMIL CAPITAINE of 89 Chancery Lane in the County of Middlesex, Civil
Engineer, do hereby declare the nature of the said invention for "IMPROVEMENTS
IN FILTERING APPARATUS FOR GAS, AIR, STEAM AND OTHER FLUIDS, a communi-
cation to me from abroad by Dr Moeller of Kupferhammer near Brackwede in the
German Empire, Engineer, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
This invention hereinafter described with reference to the accompanying sheet of
illustrative drawings refers to improvements in filtering apparatus, this consisting
of the casing G which may be constructed of metal, wood, bricks, or other suitable
material, and of the filtering material formed of wire gauze with or without one or
more interposed layers of fibrous material such as cotton wadding, which material
is sewn in between a fabric or fabrics of any suitable kind such as felt, paper, card
board, cellulose, asbestos, or other known filtering material.
The filtering medium consists of a number of pouches C closed on five sides and
open on one side only. The gas or other fluid to be filtered enters at the bottom
between the pouches and passes out at top in the direction shewn by the arrows.
Figs 1, 2 and 3 are respectively a sectional elevation; a vertical cross section and
a sectional plan of a filtering apparatus constructed in accordance with this
invention.
The removable filter frame E fitted with engaging pins is held in position on the
fixed frame D by clamps H as shewn to a larger scale in Fig 4 but this may be
accomplished in any other known manner such as by wedges, springs, screws,
etcetera. Instead of the joint surface being nearly horizontal as in Fig 4 it may
be arranged vertically and tightened up by spring clamps as shewn in Fig 5.
The filter proper is represented as in one piece so that all the various pouches
join on to one another but it is obvious that it may be made up of any number of
parts and also that a single pouch or any desired number of the same may be
arranged in a corresponding frame. In order to prevent the collapse of the filtering
material bands may be sewn on so as to connect the different pouches and stay
them together, or the same object may be attained by insertion therein of triangular
frames K of wood, basket work, or metal. The space for the filtered fluid is
separated from that for the unfiltered by. the partition B. The filter pouches may
be in the form of triangular prisms as shewn in the drawing or may be of any
polygonal or curved shape in cross section.. The two narrow end, surfaces instead
of being parallel to each other may converge so as to form a four.sided pyramid.
For the purpose of guarding against the access of impurities of a coarse kind and
of vermin, a wire gauze partition is provided at J.
Figs 6 and 7 shew a filter of this kind in a pillar form. In this case the filtering
material is in the form of flat circular discs separated from each other by distance
pieces M N to which they are suitably fixed. The column or pillar thus formed
may be left free or it may be enclosed within a protecting casing O, which also
serves as a screw press to keep the different parts of the column pressed together
and tighten the joints. Instead of the screw arrangement shewn any other
combination of a screw and cover may be employed, also the column may vary in
any way from the circular form, and the filter discs may have an undulated or
corrugated surface instead of being flat as shewn. The fluid as shewn by the
arrows passes into the various compartments of the filter through lateral openings
passing out into the passage S and discharge pipes P and P¹. The passage S may
if preferred be arranged within the filter column and the fluid to be filtered
may be, fed in through pipes P, P¹ when the flow of the fluid would be reversed.
"

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what
I claim is :
1. The arrangement of filtering material so as to form pouches or compartments
extending in five directions and compactly connected together substantially as
described.
2. The suspension of the filtering material between two frames one fixed and the
other removable substantially as described.
3. The arrangement of the filter compartments in pillar form substantially as
described with reference to Figs, 6 and 7.
4. The maintenance of the filtering material in position by means of frames
substantially as described and illustrated.
Dated this 22nd day of November 1884.
EMIL CAPITAINE.