New or Improved Apparatus for Cleaning and Sorting the Water Derived from Paper Machines.
Year: 1896

page_text: Date of Application, 28th Mar. 1899
Complete Specification Left, 17th Dec., 1896-Accepted, 20th Mar., 1897
New or Improved Apparatus for Cleaning and Sorting the Water
Derived from Paper Machines.
I, ОTTо SCHMIDT, Factory Manager of Andritz near Graz in the Empire of
Austria, do hereby declare the nature of this invention to be as follows:-
The present invention relates to an apparatus for cleaning and sorting the water
derived from a paper machine, that is to say for dealing with the water which has
been used in the production of paper on the paper machine so that it may be
cleansed of all pernicious ingredients and so that the useful ingredients contained in
the water may be again carried with the water to the paper stuff to be used again
or if desired carried away in a cleaned state from the manufactory.
As will be seen from the following description the water cleansed of all pernicious
ingredients is sorted or divided into three qualities, namely, one quality containing
pulp; into one containing size; and into pure water.
The construction and working of the apparatus shown in the annexed drawing is
as follows:-
The apparatus consists of a reservoir A provided with interposed walls a and
united with a second receiver B by means of the pipe II. From the deepest part
of the reservoir B provided with an inclined bottom and also with one or more
interposed walls b a pipe IV leads to the paper machine, whilst a pipe III connects
the reservoir B with the vats C1 and C' united together by the pipe VIII.
From the vat Can overflow pipe IX leads to the pipe VII enlarged on its
upper part, above which at a height of 30 to 40 cm. is the overflow of the,
reservoir A. Also the vats C and C are in connection with the rag engines S by
means of the pipes V and VI.
Through the pipe I the whole water is pumped into the reservoir A from the vat
and from the sucking chests also press water from the couching press.
In the reservoir A by means of the interposed walls a the scum, fats, and other
dirty ingredients of the water are kept back and escape over the overflow. The
pulp containing water passes through the walls a and through the pipe II to the
lower lying reservoir B. This latter has as already mentioned, and inclined bottom
and must be arranged at least 1 meter or more lower than the receiver A.
At the deepest place of the receiver B is arranged the pipe IV, through which
the larger part of the water with the paper stuff deposited in the receiver is again
carried to the paper machine to dilute the paper stuff; this pipe IV is provided
with a cock or valve in order to regulate the water admission to the paper
machine.
The wall b interposed in the receiver B prevents a quick movement of the stuff
water in the receiver B and allows the stuff to deposit, whilst the leaving of the
latter is favoured by the inclined bottom of the receiver B. The pipe III, fixed at.
the highest part of the receiver B carries the remaining water, cleaned from all
specifically heavy and from most of the specifically light paper particles into the
higber lying vats C and C.
The water firstly enters into the vat C' and as the quantity of this water which

page_text: is only in slight movement is not large, and any further particles will deposit, in
order that only clean size-containing water is carried to the vat C.
The water from the vat C' is used for filling, that from the vat C for emptying
the rag engines S and eventually for the suction boxes. The pipe X leads to the
pulp chests.
All water from the sieve, couching press, etc. which may contain pulp, but also
easily other impurities must not be carried into the stuff water. but to a usual stuff
catcher, the fibres being there more easily caught, because it can no longer be
covered by size and fulling stuffs.
Dated this 28th day of March 1896.
HERBERT HADDAN & Co.,
Agents to Applicant.
New or Improved Apparatus for Cleaning and Sorting the Water
Derived from Paper Machines.
1, OTTO SCHMIDT of Andritz near Graz in the Empire of Austria, Factory
Manager 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 present invention relates to an apparatus for cleaning and sorting the water
derived from paper machines, that is to say for dealing with the water which has
been used in the production of paper on the paper machine so that it may be
cleansed of all pernicious ingredients and so that the useful ingredients contained in
the water may be again carried with the water to the paper stuff to be used again
or if desired carried away in cleaned state from the manufactory. As will be seen
from the following description, the water cleansed of all pernicious ingredients is
sorted or divided into three qualities, namely one quality containing heavier refuse,
one containing pulp, and one containing only size.
The construction and working of the apparatus shown in the drawing left with
my Provisional Specification is as follows:
The apparatus consists of a reservoir A provided with interposed walls a and
united with a second receiver B by means of the pipe II. From the deepest part
of the reservoir B provided with an inclined bottom and also with one or more
interposed walls b, a pipe IV leads to the paper machine, whilst a pipe III connects
the reservoir B with the vats C1 C2 united together by the pipe VIII.
From the vat C2 an overflow pipe IX leads to the pipe VII enlarged on its
upper part, above which at a height of 30 to 40 cm. is the overflow of the reservoir A.
Also the vats C and C are in connection with the rag engines S by means of the
pipes V and VI.
Through the pipe I the whole water is pumped into the reservoir from the vat
and from the sucking chests also press-water from the couching press. In the
reservoir A by means of the interposed walls a the scum, fats and other dirty
ingredients of the water are kept back and escape over the over-flow. The pulp
containing water passes through the walls a and through the pipe II to the lower
lying reservoir B. This latter has as already mentioned, an inclined bottom and
must be arranged at least 1 meter or more lower than the receiver A. At the
deepest place of the receiver B is arranged the pipe IV through which the larger
part of the water with the paper stuff deposited in the receiver is again carried to
the paper machine to dilute the paper stuff; this pipe IV is provided with a cock
or valve in order to regulate the water admission to the paper machine. The wall C

page_text: interposed in the receiver B prevents a quick movement of the stuff water in the
receiver B and allows the stuff to deposit, whilst the leaving of the latter is
favoured by the inclined bottom of the receiver B. The pipe III fixed at the
highest part of the receiver B carries the remaining water, cleaned from all
specifically heavy and from most of the specifically light paper particles into the
higher lying vats C¹ and C².
The water firstly enters into the vat C' and as the quantity of this water which
is only in slight movement is not large, any further particles will deposit, in order
that only clean size containing water is carried to the vat C. The water from the
vat C is used for filling that from the vat C' for emptying the rag engines S and
eventually for the suction boxes. The pipe X leads to the pulp chests.
All water from the sieve couching press etc. which may contain pulp but also
easily other impurities, must not be carried into the stuff water but to a usual stuff
catcher, the fibres being there more easily caught, because it can no longer
be covered by size and fulling stuffs.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
Apparatus for cleaning and sorting the water derived from paper machines
consisting of a receiver A provided with interposed walls a, and of a lower lying
receiver B connected with the first by a pipe II and provided with inclined bottom
and one or more interposed walls b, and which has at its deepest part a pipe IV
leading to the paper machine and on its upper side a pipe III leading to two higher
lying vats C1 C2 which by means of pipes V and VI are in connection with the rag
engines S for the purpose of cleaning the water escaping during the working of the
paper stuff and pumped into the first reservoir A from pernicious ingredients, to
deposit the therein contained paper stuff in the second receiver B and to carry it
again with the largest part of the water to the paper machine whilst the water
substantially cleared of the paper stuff and only containing size is led to the higher
lying vats C¹ and C' and from there for supplying the rag engines instead of fresh
water.
Deted thie 17th day of December 1806
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, Agents to Applicant.