IMPROVEMENTS IN SEPARATING TARES AND OTHER IMPURITIES FROM GRAIN AND OTHER SEEDS, AND IN THE APPARATUS OR MEANS CONNECTED THEREWITH
Year: 1868

page_text: LETTERS PATENT to James Graham Walker, of Bonnington, and
Charles Stein, of Leith, both in the County of Mid Lothian,
North Britain, for the Invention of "IMPROVEMENTS IN SEPARATING
TARES AND OTHER IMPURITIES FROM GRAIN AND OTHER SEEDS, AND IN THE
APPARATUS OR MEANS CONNECTED THEREWITH."- A communication from
abroad by William Walker Gibson and Walter Berry, residing at
Trieste, in the Empire of Austria.
Sealed the 28th October 1868, and dated the 6th May 1868.
PROVISIONAL SPECIFICATION left by the said James Graham Walker
and Charles Stein at the Office of the Commissioners of Fatents,.
with their Petition, on the 6th May 1868.
We, JAMES GRAHAM WALKER, of Bonnington, and CHARLES STEIN,
of Leith, both in the County of Mid Lothian, North Britain, do hereby
declare the nature of the said Invention of "IMPROVEMENTS IN SEPARATING
TARES AND OTHER IMPURITIES FROM GRAIN AND OTHER SEEDS, AND IN THE
APPARATUS OR MEANS CONNECTED THEREWITH," to be as follows, that is to
sav

page_text: This Invention, which relates to an improved means by which
impurities such as tares and other foreign seeds or matter may be separated
from grain, pulse, and other similar produce, consists in employing a
spout, through which the grain, pulse, or other produce to be cleansed
falls upon a cone. In travelling down the surface of the cone the tares
or other impurities from their form and size acquire a greater momentum
than the grain or pulse, and on arriving at the lower end of the cone
they fall over the ledge there situated, whilst the grain or pulse
having a less momentum, and being also to some extent impeded by its
form, does not fall over the ledge, but passes through openings into
the interior of a hollow inverted cone, on arriving at the centre of
which it escapes through a hole, and passes over another cone similar
to the first.
Under this Invention any number of cones may be employed ac-
cording to the extent of cleansing the seed under treatment may
require.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Graham Walker and Charles Stein in the
Great Seal Patent Office on the 5th November 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES 2
GRAHAM WALKER, of Bonnington, and CHARLES STEIN, of Leith, both
in the County of Mid Lothian, North Britain, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of May, in the year of our
Lord One thousand eight hundred and sixty-eight, in the thirty-first 2
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said James Graham Walker and Charles Stein,
Her special license, that we, the said James Graham Walker and
Charles Stein, our executors, administrators, and assigns, or such others
as we, the said James Graham Walker and Charles Stein, our executors,
administrators, or assigns, should at any time agree with, and no
others, from time to time, and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN

page_text: SEPARATING TARES AND OTHER IMPURITIES FROM GRAIN AND OTHER SEEDS, AND IN
THE APPARATUS OR MEANS CONNECTED THEREWITH," a communication from
abroad by William Walker Gibson and Walter Berry, at present residing
at Trieste, in the Empire of Austria, upon the condition (amongst
others) that we, the said James Graham Walker and Charles Stein,
by an instrument in writing under our hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said James Graham Walker and
Charles Stein, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, reference being had
to the accompanying Drawings, and to the letters and figures marked
thereon, that is to say :-
Our said Invention, which relates to an improved means by which
impurities such as tares and other foreign seeds or matter may be
separated from grain, pulse, and other similar produce, consists in
employing a spout through which the grain, pulse, or other produce
to be cleansed falls upon a conc. In travelling down the surface of
the cone the tares and other impurities from their form and size acquire
a greater momentum than the grain or pulse, and on arriving at the
lower end of the cone they fall over the ledge there situated, whilst the
grain or pulse having a less momentum, and being also to some extent
impeded by its form does not fall over the ledge, but passes through
openings into the interior of a hollow inverted cone, on arriving at the
centre of which it escapes through a hole, and passes over another
cone similar to the first.
Under this Invention any number of cones may be employed
according to the extent of cleansing the seeds under treatment may
require.
And in order that our said Invention may be properly understood,
we now proceed more particularly to set forth the system, mode,
or manner in or under which the same is or may be used or practically
carried into effect, reference being had for the sake of more complete
elucidation to the letters and figures upon the explanatory Sheet of
Drawings which we have hercunto appended, that is to say:-

page_text: Figure 1 is a vertical section and Figure 2 a half sectional plan
of an improved cleaning apparatus for removing impurities from grain
and other seeds according to this Invention.
The apparatus consists of two cones A, B, which are supported on
the brackets C placed on the vertical spindle D, and fixed on it by
pinching screws a, so that the cones A, B, may be raised or lowered at
pleasure to regulate the vertical space between the bottom of these
cones and the mouth of the inverted cones F, G, which rest upon the
brackets H supported on the framing I. In operating with the apparatus
the grain, pulse, or other produce is filled in by the tube J, and falls
through the funnel K into a cleaning chamber K' where it is cleansed
from earth, dust, chaff, and other extraneous matter by means of a
fan or air box L. The grain or other produce then falls through the
funnel M, and rolls down the surface of the cone A, which is covered
with tin plate or other suitable material so as to present a smooth
surface, on passing down which the tares or other impurities from their
form acquire a greater momentum than the particles of grain, and on
arriving at the bottom of the cone A they leap over the mouth or rim
of the inverted cone F, while the grain particles fall inside and roll
down the inner surface of the cone to its apex, where it falls through
on to the cone B, down the smooth surface of which it passes, and any
tares or other impurities which may remain in the grain are eliminated
thereby in the manner herein-before described; the grain then passes
down the surface of the inverted cone G, and escapes by the spout O.
Instead of adjusting the cones A, B, by means of the sliding brackets C,
they may be regulated by a screw placed in the footstep bracket N so
as to raise the spindle D, or in any other convenient manner.
inverted concs F, G, may also be fitted with slides for the purpose of
regulating the vertical space between them and the cones A, B, in
which case the former instead of being made conical may be made
square, rectangular, or other polygonal form.
The
In some cases it may be advantageous to reverse the order of the
process, and allow the impurities instead of the grain to fall inside.
Having now described the nature of our said Invention, and the
manner in or under which the same is or may be used or practically
carried into effect, we would observe, in conclusion, that what we
consider novel and original, and therefore claim as the Invention
secured to us by the herein-before in part recited Letters Patent is, the

page_text: arrangement and construction of apparatus for cleaning grain or other
seeds, whereby the tares and other impurities acquire a greater
momentum than the grain, and are allowed to separate from the
latter in the manner herein-before described, or any mere modification
thereof.
In witness whereof, we, the said James Graham Walker and
Charles Stein, have hereunto set or hands and seals, this Third
day of November, One thousand eight hundred and sixty-
eight
J. G. WALKER. (L.S.)
CHA. STEIN. (L.S.)