Improvements in Filters.
Year: 1896

page_text: Date of Application, 12th Aug., 1896
Complete Specification Left, 12th May, 1897-Accepted, 12th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Filters.
I, CHARLES AUGUST KÜNZEL Jr., of Randolph Street, Chicago, Illinois,
U.S.A., Machinist, do hereby declare the nature of this invention to be as
follows:-
The filter of this iuvention is formed of three superimposed parts bolted together.
The two lower parts are provided with shoulders or rims on which rest perforated
diaphragms covered over with netting. The fluid to be filtered is forced into the
lower compartment, passes through the first filtering diaphragm, then through a
second diaphragm above it. This second diaphragm carries on its underside a
convex deflector which is not perforated, so that the fluid only passes through the
perforated outer edge of this diaphragm. Upon this latter is fixed a vertical
conical, or series, of pipes one let into the other and through this pipe or these
pipes the fluid passes through a third diaphragm into a perforated filtering pipe
extending upwards through the middle of the upper compartment. This pipe is
covered inside with netting and at the bottom immediately upon the diaphragm
is placed filtering material. The fluid passes out of the perforations in the pipe
to a cup shaped strainer upon the same diaphragm passes through the strainer and
back through the diaphragm into the middle compartment to be drawn off.
Dated this 12th day of August 1896.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.
provemer
1, CHARLES AUGUST KÜNZEL Jr., of Randolph Street, Chicago, Illinois,
U.S.A., Machinist, 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 :-
In the filter of this invention the fluid is subject to a double filtration. In the
accompanying drawing said filter is shewn in vertical section.
A is the filter casing having the compartments B, C, D, bolted or otherwise secured
to each other. loside the compartment B are the flanges E, F, the former
supporting the perforated diaphragm G having on top the netting H on which
charcoal or other filtering material is placed. On the flange F is a diaphragm
having at the centre the convex projection K forming a deflector, and the perforated
rim K' having on top the netting H. Jis a conical vessel enclosing the perforated
rim K and having fitted to its top the telescopic pipes L, M. Inside the casing
between the compartments C, D, is a flange P carrying a diaphragm N covered by
netting Q. R is a perforated pipe placed directly over the pipe M said pipe Ŕ
being covered inside by netting U and supplied inside with any suitable filtering
material S. A cup T is placed round the bottom of pipe R the outer face of the
cup being covered with netting U¹ connecting with netting Q.

page_text: V is the outlet pipe, connected with the compartment C. The top of the casing
is closed by a cap W held in place by the screw X and bridge Y, said cap being
adapted to be loosened and removed, whereby the filter may be cleaned. The
fluid is forced into the compartment B through the inlet Z and passes through the
diaphragm G and netting thereon. It is then deflected by the projection K and
forced through the perforated rim K' into the vessel J and pipes L and M, thence
through the diaphragm N and netting thereon and the filtering substance S into
the pipe R, from which it passes through the netting into the compartment D, and
from thence through the strainer U₁ and the portion of the diaphragm N below
the same into the compartment C from which it is withdrawn through the discharge
or outlet V. It will be seen that the fluid is thus subjected to several filtering
actions.
Between the opening of the casing and the pipe R is a chamber A' having a
pipe B leading thereto, through which water may be introduced to clean the filter,
part of said water passing down the pipes R, M, L, and the vessel J, and through
the various diaphragms and out at Z while another part passes through the side of
the pipe R the strainer U and the diaphragm N into the chambers C and D and
passes out at the discharge pipe V.
The various parts of the filter may be separated and removed for purpose of
repairs, etcetera."
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A filter having a casing with an inlet, upper and lower perforated diaphragms
connected with said casing, forming a filtering chamber, the upper one of said
diaphragms having a perforated rim with an imperforated convex portion projecting
into said chamber, forming a deflector, a vessel within said casing, receiving the
fluid from said filtering chamber, an upper filtering chamber communicating with
said filtering chamber, and a discharge pipe in communication with said upper
filtering chamber, said parts being combined, substantially as described and shewn
2. A filter having a casing with an inlet, a vessel J with the pipes L, M, thereon
open to said inlet, diaphragms above and below said pipes and vessel, aud a
perforated pipe supported on the upper diaphragm, said perforated pipe having
communication with the space in the casing outside of and adjacent to said vessel J
substantially as described and shewn.
3. A filter having a casing with an inlet, upper and lower diaphragms, the
vessel J with pipes L, M, between said diaphragms, the perforated pipe above said
diaphragms, the cup T surrounding the pipe R and the strainer U connected with
the cup T and the upper diaphragm, said parts being combined, substantially a
described and shewn.
4. A filter formed of compartments, with diaphragms between the same, inle
and outlet pipes, the vessel J above the intermediate diaphragm with the com
municating pipes L, M, a perforated pipe above the upper diaphragm which is i
communication with said conveying pipes and with the compartment surroundin
the same, and a deflector with a perforated rim below said vessel, said parts bein
combined, substantially as described and shewn.
5. The general arrangement and combination of parts constituting the filter
substantially as described and shewn.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.