Improvements in Apparatus for Separating Liquids from Solid Matters Suspended Therein.
Year: 1891

page_text: Date of Application, 31st Mar., 1891
Complete Specification Left, 3rd Dec., 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Separating Liquids from Solid
Matters Suspended Therein.
We, JOHN SHEPHERD SAWREY of 53 Carleton Road, Tufnell Park, Middlesex,
Engineer, and HAROLD COLLET of 7 Coleridge Road, Finsbury Park, Middlesex,
Engineer do hereby declare the nature of this invention to be as follows:-
Qur invention relates to apparatus through which liquids are passed for the
purpose of inducing solid matters suspended therein to settle out by gravitation.
For this purpose we employ a vessel, preferably cylindrical, in which we place a
number of cones with their small ends downwards, such cones being perforated so
as to allow the liquid to rise through the holes; the solid matters settle upon the
upper surfaces of the cones and slide down towards the bottom of each cone, of
which the apex is cut off, leaving a hole through which the mud or deposit may fall
down (through similar apertures in any lower cones) to the bottom of the containing
vessel, whence it may be drawn off by means of a cock. The perforations in the
cones are arranged so as to interfere as little as possible with the deposit sliding
down the surface; this is most easily effected by the holes being arranged in even
rows converging towards the apex. The central aperture in each cone may be
furnished with a neck projecting downwards, which will tend to prevent currents of
liquid rising through the central hole and so disturbing the falling deposit. The
cones may be corrugated, with the perforations in the upper curves, leaving the
lower curves to form mud channels.
The liquid may be passed downward through the cones, but this method is not so
efficient as the upward motion.
1001
J. S. SAWREY.
HAROLD COLLET.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Separating Liquids from Solid
Matters Suspended Therein.
We, JOHN SHEPHERD SAWREY, of 53 Carleton Road, Tufnell Park, Middlesex,
Engineer, and HAROLD COLLET of 7 Coleridge Road, Finsbury Park, Middlesex,
Engineer, 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 :-
Our invention relates to apparatus through which liquids are passed for the
purpose of inducing solid matters suspended therein to settle out by gravitation.
For this purpose we employ a vessel of suitable shape, preferably cylindrical, in
which if cylindrical we place a number of conical diaphragms fastened to the shell
of the vessel with their small ends downwards, such conical diaphragms being
perforated with holes so as to allow the liquid to rise through the cones; the solid
matters settle upon the upper surfaces of the cones and slide down towards the
bottom of each cone, of which the apex is cut off, leaving an aperture through
which the mud or deposit may fall down (through similar corresponding apertures
in any lower cones) to the bottom of the containing vessel, whence it may be drawn
off by means of a cock. If the containing vessel is not a cylinder, then the shape
of the diaphragms will vary from being true cones to suit the shape of the vessel;
thus in a square vessel the cones may become inverted pyramids with either plane
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page_text: sides and sharp angles or with rounded sides or rounded angles, the effect being
still the same, namely a perforated diaphragm tapering conically downwards
towards an apex.
The perforations are so arranged as to interfere as little as possible with the
deposit sliding down the surface; this is effected by the holes being arranged in
even rows with plain spaces between on which the deposit slides. The central
aperture in each diaphragm may be furnished with a neck projecting downwards,
which tends to prevent currents of liquid rising through the centres and disturbing
the falling deposit. The diaphragms may be corrugated, with the perforations in
the upper curves, leaving the lower curves to form mud channels.
The liquid may be passed downwards through the diaphragms, but this method
is not so efficient as the upward motion.
Referring to the drawings, which show a vessel of cylindrical shape, A is the
shell of the containing vessel, B is the inlet pipe, C C are the perforated conical
diaphragms, and D is the outlet, E is a cock for letting out the accumulated
deposit. C₂ is a plan of a diaphragm, shewing the arrangement of the
perforations.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In apparatus for the purpose herein described the use in a suitable containing
vessel of a perforated diaphragm or diaphragms of conical or approximately
conical shape with the apex or small end downwards substantially as described.
2. In apparatus for the purpose herein described the use in a suitable containing
vessel of a perforated diaphragm or diaphragms of conical or approximately
conical shape, with the apex downwards and furnished with a neck or necks sub-
stantially as described and for the purpose set forth.
Dated this Third day of December 1891.
J. S. SAWKEY.
HAROLD COLLET.