Improvements in Apparatus for Straining Water.
Year: 1895

page_text: Date of Application, 2 th Aug., 1895
Complete Specification Left. 28th May, 1896-Accepted, 18th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Straining Water.
Sir DAVID LIONEL SALOMONS, Bart. Broomhill, Tunbridge Wells, FRANK
BAILEY, 64 Bankside, S.E. Engineer, do hereby declare the nature of this
invention to be as follows:-
The application of a rotating wheel on a vertical or horizontal axis for the
purpose of straining water which may contain vegetable fibre or other foreign
matter. The spaces between the spokes of this wheel form chambers in which
straining grids are placed. A fixed or moveable diaphragm of suitable material is
placed across the diameter of the wheel and conducts the water to be strained
through the grids on one half of the diameter of the wheel. The wheel is driven
from the periphery or from the shaft and as it rotates the straining chambers pass
the diaphragm and carry the foreign matter deposited on them to be washed away
by a flow of clean water or in some cases by the return flow.
The wheel may be contained in a closed chamber or metal case, the inflow and
outflow pipes being attached to each side of the case. The grid is constructed of
small pipes, perforated plates, corrugated sheets or by sheet metal strips so woven
together by means of alternate half slots as to form small square passages; an
essential feature being the depth of the strainer, each passage being long or deep
enough to accomodate the length of fibre or other foreign material in the water
and so prevent interlacing or fouling during the flushing of the strainer.
Dated this 28th day of August 1895.
Improvements in Apparatus for Straining Water.
We Sir DAVID LIONEL SALOMONS Baronet of Broomhill, Tunbridge Wells
in the County of Kent, Barrister, FRANK BAILEY 64 Bankside S.E. 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 method of straining water which may be used for condensing or other
purposes consists in the application of a rotating wheel on a vertical or horizontal
axis for the purpose of straining water which may contain vegetable fibre or other
foreign matter.
The spaces between the spokes of this wheel form chambers in which straining
grids may be placed.
A fixed or moveable diaphragm may be placed across the diameter of the wheel
so as to conduct or guide the water to be strained through the grids on that part
of the half of the wheel uncovered by the aforementioned diaphragm. The wheel
may be made to rotate by being driven from the periphery, the shaft, or by
1 P271

page_text: means of vanes fixed in such a manner that the wheel would revolve by means
of the impetus given by the water, and as it rotates the straining chambers or
grids in passing the diaphragm would carry with them any foreign matter that
may have adhered to them, or that might be contained in the pockets provided for
the purpose; this matter being washed away on passing the diaphragm by the
return flow, or by a flush of water specially provided.
Having now clearly defined and set forth the nature of our invention, we will
now refer to the drawings which show its application.
Fig. 1. is a half section looking from the barring gear end of the machine and
showing the straining grid. The arrow indicates the direction of rotation of the
wheel A.
Fig. 2. is a section looking from the driving end of the strainer showing a
method of rotation by means of a worm and worm wheel driven by a pulley. The
arrow head indicates the direction of rotation of the wheel A.
Fig. 3. is a half section looking from the discharge side of the strainer showing
a section through the grid. The arrows indicate the direction of the flow of the
water.
Fig. 4. is a plan of the strainer showing the top half of the casing removed.
The arrows indicate the direction of the flow of the water.
The strainer wheel A may be contained in a closed chamber or metal case P.
The inflow or delivery pipes K and L, and the outflow or discharge pipes M and N
being attached to each side of the case.
We prefer to construct the grid B, contained in the wheel A, of small pipes or
perforated plates, corrugated sheets, or by sheet metal strips, so woven together by
means of alternate half slots as to form small square passages, an essential feature
being the depth of the grid, each passage being long or deep enough to accomodate
the length of fibre or other foreign material in the water and so prevent interlacing
or fouling during the flushing of the strainer.
We prefer to make the strainer wheel of such a depth as to leave room for a
pocket O, in front of each grid, thus allowing space for any small substance to pass
from one side of the strainer diaphragm by the rotation of the wheel and to be
washed away by a return flow of water on the other or further side of the said
diaphragm.
An adjustable knife-edge C may be fixed on the diaphragm H at the inflow side
of the strainer, so that any foreign matter or material may be cut up and dislodged
that might otherwise cause the strainer wheel to become jammed.
We prefer to make the diaphragm H a moveable one so that it may be rotated
about the strainer wheel axis by ineans of the barring gear E, thus giving facilities
for the dislodgment of any objectionable material. To this barring gear we
might attach a tightening band F so adjusted and controlled that the diaphragm H
might be temporarily fixed in any desirable position, it being at the same time free
to move should any exceptionally heavy strain be put upon it.
A further diaphragm J may be fixed on the side of the strainer wheel opposite to
the diaphragm H for the purpose of directing and guiding the water, which passing
through the delivery pipe K deposits any foreign matter it may contain on the
grid of the wheel A, flows on by means of the pipe L, and after passing through a
condenser or other apparatus is discharged by way of the pipe M and the grid in
the opposite side of the wheel A into the pipe N, the diaphragms H and J acting
as partitions between the inward or delivery and outward or discharge flows of
water. We would further provide a flushing pipe R, so that water may be turned
on from the delivery to the discharge pipe so as to dislodge and carry away any
mud, small matter or material that may have become lodged.
The pipe D may be used for a similar purpose to the pipe R:-to carry away
any deposit lodged in the space around the periphery of the wheel A, high pressure
water might be injected through any of the bosses T, thus flushing the afore-
mentioned peripheral space and flowing through the pipes D and R to the discharge
pipe N.

page_text: We prefer to drive our strainer wheel through its axis by means of a worm and
worm wheel gear G attached to the main shaft W.
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 a machine for straining water a combination of its parts arranged in such
a manner that the deposit of foreign matter or material left by the water passing
through the strainer grid on the delivery side of the wheel is carried round by the
rotary action of the wheel to the discharge side and so washed away by a return
flow of water.
2. In relation to the depth of the strainer grid, each passage being long or deep
enough to accomodate the length of fibre or other foreign material in the water-
and so prevent interlacing or fouling during the flushing of the strainer.
Dated this 28th day of May 1896
DAVID LIONEL SALOMONS..
FRANK BAILEY.