Matters in Suspension therein.
Year: 1887

page_text: Date of Application, 1st Dec., 1887.
Complete Specification Left, 21st Aug., 1888
Complete Specification Accepted, 21st Sept.. 1888
Matters in Suspension therein.
We, JOHN SHEPHERD SAWREY, of 58 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:
Our invention relates to apparatus in which salts of lime, and magnesia are pre-
cipitated by chemical means from their solution in water, and solid matters of all
descriptions may be precipitated and induced to settle upon sloping shelves or plates,
the purified water being removed by decantation or overflow, leaving the solid matters,
both mineral and organic, as a deposit in pockets or corners, at which stopcocks are
provided to allow it to be removed or run off. In apparatus hitherto used the sloping
shelves have been made of V shape, with a slope of about 45 degrees from side to
middle, and also a similar slope from back to front. The deposited precipitate slides
down to the lowest point of the V where a mud cock is provided for its removal.
The shelves do not extend quite from back to front of the tank, but alternately to the
back and front, a mud cock being thus used for each alternate shelf.
One improvement consists in making cach shelf of a single plane, sloping (when in
a rectangular tank) towards one angle of the tank, where a mud-cock is provided.
The tank may also be made circular.
The second improvement consists in making each tank five sided, the shelves also
consisting each of a single plane sloping from back to front and terminating at an
angle.
In both cases all the shelves may extend entirely to the front angle, a mud-cock
being provided for each shelf, a suitable hole being cut in each alternate shelf near
the mud angle for the water to pass through; or a portion of the front edge or edges
of the shelf may be turned up, forming a gutter in which the deposit may slide, and
leaving an opening for the water to pass through. The channel in the other alternate.
5

page_text: shelves may be made in the same way, at the upper part of the shelves, but the gutter
edge is not there necessary.
As regards working results, there is no practical difference between the form
originally described and the improvements now set forth, but the latter forms are
materially cheaper to manufacture, the shelves being easier to make and rivet.
Dated this 1st day of December 1887.
Improvements in Apparatus for Separating Liquids from Solid
Matters in Suspension 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 in which salts of lime and magnesia are pre-
cipitated by chemical means from their solution in water, and solid matters of all
description may be precipitated and induced to settle upon sloping shelves or plates,
the purified water being removed by decantation or overflow, leaving the solid matters,
both mineral and organic, as a deposit in pockets or corners, at which stopcocks are
provided to allow it to be removed or run off. In apparatus hitherto used, the sloping
shelves have been made of V shape, with a slope of about 45 degrees from side to
middle and a similar slope from back to front. The deposited precipitate slides down
to the lowest point of the V where a mudcock is provided for its removal. The
shelves do not extend quite from back to front of the tanks, but alternately to the
back and front, a mudcock being thus used for each alternate shelf.
One improvement consists in making each shelf of a single plane, sloping (when
in a rectangular tank) towards one angle of the tank, where a mudcock is provided.
The tank may also be made circular, with the shelves sloping towards one portion of
the wall of the tank.
A second improvement consists in making the tank five sided, the shelves also
consisting each of a single plane sloping from back to front and terminating at an
angle:

page_text: All the shelves may extend entirely to the front angle, a mud cock being provided
for each shelf, a suitable bole being cut in each alternate shelf near the mud angle for
the water to pass through, or a portion of the front edge or edges of the shelf may be
turned up, forming a gutter in which the deposit may slide, and leaving an opening
for the water to pass through. The channel in the other alternate shelves may be
made in the same way at the upper part of the shelves, but a gutter edge is not there
necessary.
Referring to the drawings, Fig. 1 shews a circular vertical tank in front and side
views. A A are shelves extending to the front of the tank where the mudcocks are
provided, and with a water channel left at the upper end. B B are alternate
shelves extending to the back of the tank and with a water channel at the
lower end.
Fig. 2 shews a rectangular vertical tank, the shelves all sloping down towards the
angle C.
Fig. 3 shews a five sided vertical tank, the shelves all sloping down towards the
angle D.
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 a rectangular vertical tank provided
with flat shelves sloping towards one angle of the tank and between which the liquid
passes alternately upwards and downwards substantially as described and for the
purpose set forth.
2. In apparatus for the purpose herein described, a five sided vertical tank provided
with flat shelves sloping towards one angle of the tank, and between which the liquid
passes alternately upwards and downwards substantially as described and for the
purpose set forth.
3. In apparatus for the purpose herein described a circular vertical tank provided
with flat shelves sloping towards the side or front of the tank and between which the
liquid passes alternately upwards and downwards substantially as described and for
the purpose set forth.
Dated this 21st day of Angust 1888.
JOHN S. SAWREY.
HAROLD
COLLET.