Improvements in Apparatus for Cleansing Wheat and other Grain.
Year: 1890

page_text: Date of Application, 2nd May, 1890
Complete Specification Left, 2nd Feb., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Cleansing Wheat and other
Grain.
L, HENRY SIMON, of No. 20, Mount Street, Manchester, in the County of
Lancaster, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
In my Specification No. 9419 of 1889, 1 have described means of cleansing
wheat and other grain by passing it over a sifting bed along with water which
is made to pulsate through the interstices of the bed.
purpose.
I feed
My present invention relates to apparatus employed for that
the grain on to a sieve of mesh small enough to prevent it from passing through ;
at the end of this sieve farthest from that where the grain is fed, I form a depres-
sion or well of the sieve covering the bottom thereof with a sieve of mesh farge
enough to allow passage of the stones and other heavy impurities which accompany
the grain, and just beyond this well is a tail board above the level of the general
surface of the sieve. provide, as before, a reciprocating plunger or diaphragm
which causes the water under and on the sieve to pulsate, but instead of subjecting
the whole of the sieving surface to the pulsations resulting from the action of one
plunger or diaphragm, I cause pulsation separately in that part where the well is.
1 charge this well with stones or pebbles too large to pass through its sieve bottom.
The grain being fed at one end is carried along by the pulsating action and flows
over the tail board while the stones and other heavy impurities collect in the well
and pass through the layer of stones or pebbles and the meshes under them into a
receptacle below whence they can be from time to time removed. Instead of
employing two separate plungers or diaphragms, a single one may be employed to
cause pulsation over the whole sieve including the well, suitable valves or other
checks being employed to adjust the amount of pulsation at different parts.
D1 1 1800
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Cleansing Wheat and other
Grain.
I, HENRY SIMON, of No. 20, Mount Street, Manchester, in the County of
Lancaster, Civil 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:-
In my Specification No. 9419 of 1889 I have described means of cleansing wheat
and other grain by passing it over a sifting bed along with water which is made to
pulsate through the interstices of the bed.
My present invention relates to apparatus employed for that purpose as I shall
describe referring to the accompanying drawings.
Fig. 1 is a longitudinal section of apparatus according to my invention.
Figs. 2 and 3 are transverse sections on X X and Z Z of Fig. 1 respectively.
I feed the grain on to a sieve A of mesh small enough to prevent it from passing
through. At the end of this sieve, farthest from that where the grain is fed, I form
a depression or well B, of the sieve covering the bottom thereof (which is preferably
sloped as shewn) with a sieve of mesh large enough to allow passage of the stones
and other heavy impurities which accompany the grain, and just beyond this well
D

page_text: is a tail board C above the level of the general surface of the sieve A. I provide,
as before, a reciprocating plunger D or it might be a diaphragm which causes the
water under and on the sieve A to pulsate, but, instead of subjecting the whole of
the sieving surface to the pulsations resulting from the action of one plunger or
diaphragm D, 1, by means of a second plunger E, cause pulsation separately in
that part B where the well is. I charge this well with stones or pebbles too large
to pass through its sieve bottom. The grain being fed at one end is carried along
the sieve A by the pulsating action and lows over the tail board C while the stones
and other heavy impurities collect in the well B and pass through the layer of
stones or pebbles to the lowest part of the slope whence they can be from time to
time removed by opening a sluice F. Instead of employing two separate plungers D
and E or diaphragins a single one may be employed to cause pulsation over the
whole sieve including the well, suitable valves or other cheeks being employed to
adjust the amount of pulsation at different parts.
Instead of ordinary pebbles it is of advantage to use in the well B. fragments or
pieces such as light ceramic material, having a specific gravity only slightly greater
than that of the grain.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what I
claim is
In apparatus for cleansing wheat and other grain, a sieve along which the grain
passes while water is caused to pulsate through it, this sieve having a well or
depression containing pebbles or their equivalents, with water subject to separate
pulsations, substantially as described.
Datod this 2nd day of Fomu 1901
ABEL & IMRAY,
Agents for the Applicant.