Year: 1888

page_text: 1, JOURS DEMAUX Otetela Qure, tonne) Fa
hereby declare the nature of this invention to be as follows:-
The most delicate part of apparatus employed in effecting the cleansing of grain
by the wet process is the "washing hin," which should be capable of performing the
two following principal operations.
(1) Washing grain of all sorts, and more especially tender grain.
(2) Complete extraction of stones.
This invention relates to an improved washer and stone extractor designed to
enable these operations to be effectively performed and is based upon the difference
in density of the stones compared with that of the grain.
An example of apparatus according to this invention is represented in the annexed
sheet of drawings Fig. 1 being a longitudinal vertical section. Fig. 2 a plan of the
same and Fig. 3 a cross section. Fig. 4 illustrates the distributing device on a larger
scale.
The apparatus is composed of a central box or casing A carrying in front a box B
having an inclined bottom, and at the rear another box or reservoir C. Upon the
casing A is a hopper D carrying two distributing rollers below which are situated
two inclined surfaces a a of equal length. The grain is drawn in and forced forward
by the distributing rollers and slides down along the inclined surfaces.
The casing A is of rectangular form, with a conical bottom and is provided at its
lower part with an opening closed by a valve E.
At the sides which are parallel to the distributing rollers are arranged two inclined
channels P. P opening into the box B. The upper borders of these channels are on
a level with those of the casing A, and their edges are in the same horizontal plane.
In the casing A is a conduit F which connects the front and rear sides together
and whose upper edges must be below the edges of the channels P P. This conduit
communicates with the box C by an opening & formed in the common partition. The
box B is in the form of a hopper; a partition d d divides it for a certain portion of
its length into two compartments H H. An opening e formed in the lower part
and closed by a slide serves for the discharge of the grain. An opening O formed
in the upper part serves as an over-flow.

page_text: The box is a reservoir which receives the water from a pipe G. and distributes it
by the opening b into the whole of the apparatus.
The operation is as follows:-The water entering at G is regulated by a cock; it
enters the conduit F by the opening b. and, when the said conduit is full, it fills the
casing A until the water rises up to the level of the edges ff. The water then over-
flows and forms a current which flows from the centre of the casing A to the
borders of the channels. The grain is supplied by a pipe R to the hopper D and
falls upon a convex part c whereby it is divided and spread out so as to fall in a sheet
of the width of the hopper. The rollers, rotating in the direction of the arrow,
direct the grain upon the inclined surfaces a a whose lower edges should be situated
at about the level of the water so that the grain will be deposited into the water
without shock.
The current being established the grain floats on the water and following its course
will fall into the channels P, P, whence it is discharged into the compartment H
of the box B whence it may be withdrawn through the opening e. The lighter portions,
such as hollow grain, particles of coal etc. rise to the surface of the compartment H¹
and will be discharged through the overflow O. The heavier stones cannot follow the
course taken by the grain floating on the water, but fall perpendicularly to the
bottom of the casing whence they are discharged through the valve E.
By making a hole in this valve, the stones may. be discharged continuously and in
an automatic manner.
The annexed sheet of drawings illustrates a washer with two overflows. This
angement allows a greater quantity of grain to be treated with comparatively less
breadth of apparatus. For small quantities only one overflow is needed, whilst for
larger quantities three overflows may be provided.
The two distributing rollers are capable of being brought more or less close
to the inclined surfaces a a in order to diminish or to increase the amount of the
grain distributed. When the apparatus is furnished with only one overflow only one
distributing roller is provided having its position adjustable, similarly to the rollers
by means of levers l l.
This washer and stone extractor is applicable to various inachines for washing and
drying grain, in place of the usual bins. It may also be employed alone as a stone
extractor.
In such a case, the grain on leaving the bin passes with the water into an endless
screw working in a perforated casing which allows the water to escape; so as to wet
the grain as little as possible.
DL
1
1000
'

page_text: (1) Washing grain of all sorts, and more especially tender grain.
(2) Complete extraction of stones.
This invention relates to an improved washer..and stone extractor designed to
enable these operations to be effectively performed, and is based on the difference in
density of stones as compared with that of grain.
Referring to the sheet of drawings filed with any provisional Specification Fig. 1 is
a longitudinal vertical section. Fig. 2 a plan, and, Fig. 3 a cross-section of apparatus
constructed according to this invention. Fig. 4 illustrates to a larger..scale a
distributing device, forming part of the apparatus.
The apparatus is composed of a central box or casing A carrying in front a box B
having an inclined bottom, and at the rear another box or reservoir C. Upon the
casing A is a hopper D carrying two distributing rollers below which are situated
two inclined surfaces a a of equal length. The grain is drawn in and forced forward
The
by the distributing rollers and slides down along the inclined surfaces a.
casing is of rectangular form in plan with a conical bottom and is provided at its
lower part with an opening closed by a valve E. At those sides of the casing that
are parallel to the distributing rollers, are arranged two inclined channels P P opening
into the box B. The upper edges of the inner-side walls of these channels are on
a level with and in the same horizontal plane as those of the casing A.
In the casing A is a conduit F which connects the front and rear sides and whose
upper edge is arranged below the edges of the channels PP. This conduit com-
municates with the box C by an opening b formed in that side of the casing A..that
is between the two. The box B is in the form of a hopper; a partition d d divides
it for a certain portion of its length into two compartments HH'. An opening e
formed in the lower part and closed by a slide serves for the discharge of. the grain.
An opening Oformed in the upper part serves as an over-flow.
The box is a reservoir which receives water from a pipe G.and.distributes it by
the opening b. to the conduit F casing.A and box B.

page_text: The operation is as follows :-
The water entering by pipe G is regulated by a cock; it enters the conduit F by
the opening band when the said conduit is full it fills the casing A until the water
rises up to the level of the edges ff of the inner sides of the channels P. The water
then overflows and forms a current which flows from the centre of the casing A to
the borders of the channels. The grain is supplied by a pipe R to the hopper D
and falls upon a convex part c whereby it is divided and spread out so as to fall in
a sheet of the width of the hopper. The rollers rotating in the direction of the arrows,
direct the grain upon the inclined surfaces a a whose lower edges should be situated
at about the level of the water so that the grain will be deposited into the water
without shock.
The
The current of water being established, the grain floats on the water and following
its course will fall into the channels P P whence it is discharged into the compart-
ment H in the box B from which it may be withdrawn through the opening e.
lighter portions, such as hollow grain, particles of coal etc. rise to the surface of the
water in the compartment H and will be discharged through the over-flow O.
The heavier stones cannot follow the course taken by the grain floating on the water,
but will fall to the bottom of the casing A from which they are discharged from time
to time through the valve E. By making a hole in this vaive, the stones may be
discharged continuously and in an automatic manner.
The washer-shewn in the drawings is intended to have two overflows, one at each
side of the box B. This arrangement allows of a greater quantity of grain being
treated with a comparatively less breadth of apparatus than would be the case with
one overflow. For treating small quantities of grain only one overflow is needed,
whilst for larger quantities thr overflows may be provided.
The two distributing rollers are so mounted as to be capable of being moved
towards or away from the inclined surfaces a a in order to diminish or to increase
as desired the quantity of grain distributed. When the apparatus is furnished with
only one overflow, one distributing roller only may be provided, the position of
which may be adjustable similarly to the rollers by means of the levers I, 1.
The washer and stone extractor herein before described, is applicable to various
machines for washing and drying grain, in place of the usual bins. It may also be
employed alone as a stone extractor. In such a case, the grain on leaving the bin
or casing passes with the water into a perforated casing in which works an endless
screw conveyor and from which the water can readily escape, so as to wet the grain
as little as possible.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In an apparatus for cleansing grain, the rectangular casing A having a conical
bottom provided in its lower parts with an opening (that may be closed by a valve E)
and provided on two of its parallel sides with two inclined channels PP that open
into the box B and whose borders or edges ff are at the same level as those of the
casing A.
2. In an apparatus for cleansing grain, the hopper D arranged above the casing A
and having a convex surface c in its interior, upon which falls the grain delivered
by the pipe R, in combination with two distributing rollers that are capable of
being brought more or less near to the inclined surfaces a a as described and for the
purpose specified.
3. In an apparatus for cleansing grain, the box B, having an inclined bottom,
arranged in front of the casing A, and divided into two compartments H & H' by
a partition d, the said box receiving the grain from the channels P P and dis-
charging it by the valve opening e whilst the light portions such as hollow grain
and pieces of coal, rise to the surface of the water and escape at the overflow O.
4. In an apparatus for cleansing grain, the reservoir C receiving the water by the
pipe G and communicating with the casing A by the opening b.

page_text: 5. In an apparatus for cleansing grain, the conduit F extending from one wall to
the other of the casing A and receiving the water from the reservoir C by the
opening in order to distribute it through the whole apparatus.
6. The combination and arrangement of parts constituting the improved apparatus
for cleansing grain constructed and operating as described with reference to the
drawings annexed.
Dated this 30th day of April 1889.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.