Improvements in or relating to Filter Presses.
Year: 1895

page_text: Date of Application, 25th July, 1895-Accepted, 31st Aug., 1895
COMPLETE SPECIFICATION.
Improvements in or relating to Filter Presses.
I GEORGE CLEMENT DOWNING of 8 Quality Court, London, W.C. Patent
Agent, a communication from abroad by The Maschinenbau Elktiengesellschaft
formerly Breitfeld Danek & Co. of Karlin Prague, Bohemia, Austria, Manu-
facturers, do hereby declare the nature of my said invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
My invention relates to the construction of plates for filter presses of the kind
described and claimed in Letters Patent for "Improvements in filter presses
dated 9th November 1887 No. 15,322, and the object of my present invention is to
effect improvements in the construction of such plates.
The plates referred to in 15,32287 are described as formed with vertical corruga-
tions and stiffened at the bottom and two ends with metal bands of channel or other
cross section, and enclosed in filtering cloth on both sides through which the liquid
percolates and passes upwards in the channels formed by the corrugations.
According to my present invention 1 form such plates of iron, steel, or other
suitable material, and bulge and recess the same in regular tiers, so as to provide
for retaining the filtering material at a suitable distance from the main body of the
plate and allow ample clearance for the passage of the fluids.
And in order that my said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings in which
similar letters of reference indicate corresponding parts.
Fig. 1 is a side view and Fig. 2 a section on the line ex illustrating one method
of formning the plates.
Figs. 3 to 12 are horizontal sections on the line y y of Fig. 1 showing various
methods of bulging and recessing the plates.
Fig. 13 is a side view with the filtering material removed shewing a complete
plate and Fig. 14 is a vertical section and Fig. 15 a top or plan view of the
same.
a is the main body of the plate. bb are the projections or bulged portions of the
material, which are sheared from the plate horizontally above and below, so as to
form short vertical channels in addition to the intermediate channels c on each side
of the plate a.
d is the stiffening frame attached to the plate which is mounted as
described in 1532287.
I do not limit myself to the forms shewn in the drawings as they may be varied
in form number and arrangement in order to render the filtering material effective,
which may consist of any closely woven wire or other suitable material, or two or
more of such materials, through which the fluids percolate and flow upwards
leaving all impurities on the outsides.
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. The improvements in or relating to filter presses substantially as and for the
purposes described.
2 In 61ton SIMAG

page_text: construction of plates, consisting of a number of portions of such plates pressed
outwards on each side, so as to form supports or distance pieces to the filtering
fabric, substantially as herein before described and illustrated by the drawings.
Dated 25th July 1895.
GEORGE C. DOWNING.

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