Year: 1897

page_text: Date of Application, 27th Mar., 1897
Complete Specification Left, 25th Oct., 1897-Accepted, 27th Nov., 1897
I, WILLIAM JOHN NEVIN, of Lisnisk Mills, Dervock, in the County of Antrim,
Farmer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in machinery for cleaning, winnowing,
or separating wheat or other grain or cereals from straw, chaff, and other impurities
and also for separating the light from the heavy grain, the object being to combine
with an ordinary thrashing machine, apparatus which will accomplish the above
ends so that the several cleaning processes are all done on one and the same machine
and at one operation.
According to this invention I construct a thrashing machine somewhat after the
ordinary fashion, in which the corn as gathered from the fields is placed on a
feed board and fed into the thrashing drum or chamber, after which it passes
into a shaker drum or chamber where the straw is thrown out leaving only the
grain, chaff and small broken straws which together fall onto a sieve, riddle, or
cleaner below the drum or chamber. The sieve or cleaner is carried under the
machine on springs of tough wood or other material affixed to the legs of the
machine and has a shaking or oscillating motion imparted to it by means of crank
shafts and cranks driven from the main driver of the machine. When the sub-
stances fall onto the sieve, the grains and small chaff pass through same, but
the straws and larger particles fall off the face of the sieve, which is inclined,
and onto the floor. When the grains have passed through one sieve they fall onto
a second finer and smaller one where the small weed, seeds, and the like are removed,
and the grain passes down an incline and into elevator buckets which carry
it to the upper part of the machine and deliver it into a receiver which in
turn delivers it onto an apron where it is operated on by a series of fans
which blow and remove the chaff and all small impurities from the grain,
and the larger and heavier grains pass down a spout and into receiving
bags, the lighter and weaker grains being blown further, pass down another
spout into bags or other receptacles, and the chaff and light impurities are
driven out by the fans and onto a platform which conveys it to any given point.
Dated this 26th day of March 1897.
BRIERLEY & HOWARD,
Penny Bank Chambers Halifax, Agents for the Applicant.

page_text: Improvements in Machines Employed for Winnowing Grain.
I, WILLIAM JOHN NEVIN, of Lisnisk Mills, Dervock, in the County of Antrim,
Farmer, 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:-
This invention, relates to improvements in machinery for cleaning and winnowing
or separating wheat or other grain or cereals from straw, chaff, and other impurities;
and also for separating the light from the heavy grain, the object being to combine
with an ordinary thrashing machine, apparatus which will accomplish the above
ends so that the several cleaning processes are all done on one and the same machine
and at one operation.
According to this invention I construct a thrashing machine somewhat after the
ordinary fashion in which the corn as gathered from the fields is placed or a
feed board and fed into the thrashing drum or chamber, after which it passes
into a shaker drum or chamber where the straw is thrown out leaving only the
grain, chaff and small broken straws which together fall onto a sieve, riddle, or
cleaner below the drum or chamber. The sieve or cleaner has a shaking or oscillat-
ing motion imparted to it, and the grains and small chaff pass through same, the
straws and larger particles falling onto the floor.
When the grains have passed through one sieve they fall onto a second finer and
smaller one where the small weed, seeds, and the like are removed, and the grain
passes down an incline and into elevator buckets which carry it to the upper part
of the machine and deliver into a receiver which in turn delivers it onto an apron
where it is operated on by a series of fans which blow and remove the chaff and all
small impurities from the grain, and the larger and heavier grains pass down a
spout and into receiving bags, the lighter and weaker grains being blown further
pass down another spout into bags or other receptacles, and the chaff and light
impurities are driven out by the fans.
Such being the nature and object of my said invention, the following is a complete
description of same, reference being had to the accompanying drawings, in
which:-
:-
Fig. 1 is a sectional side elevation of a thrashing machine with my improve-
ments applied thereto.
Fig. 2 is a sectional end elevation of Fig. 1.
Fig. 3 is a plan view of the machine.
Fig. 4 is a side elevation of the oscillating sieve.
Fig. 5 is a plan view of Fig. 4.
Fig. 6 is a sectional side elevation of the upper sieves and separating channels.
Fig. 7 is a plan view of Fig. 6.
According to this invention I construct a thrashing machine somewhat after the
ordinary fashion, in which the corn as gathered from the fields or as removed
from the stack is placed on a feed board 1, and fed into the thrashing drum or
chamber 2 where it is thrashed as ordinary, after which it passes into the shaker
drum or chamber 3 where the straw is thrown out down the shoot 3" by the revolving
arms 4, leaving only the grain, chaff, and small straw which together fall through
the perforated bottom 5 onto a sieve or riddle 6 below the chambers 2 and 3.
The sieve or riddle 6 is carried by spring legs 7 formed of tough wood or metal,
fixed to the ordinary legs of the machine, and has a shaking or oscillating motion
imparted to it by a crank 8 and crank shaft 9 (see Figs. 4 and 5) driven by belt or
strap from the thrashing drum shaft 10. When the grain, chaff, and small straws

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fall into the sieve 6 they are shaken and pass through same, and the straws and
larger particles fall off the end of the sieve at the point 7 the sieve 6 being
slightly inclined to effect this. When the grain has passed through the sieve 6
it passes down the inclines 12 to a finer sieve 11, and the weeds and small seeds are
removed and the grain passes down an incline 13 into elevator buckets 14 which
carry it to the upper part of the machine and deliver it into
receiver 15, which in turn delivers it 'onto a sieve or apron 16,
where it is operated on by a fan 17 which blows and removes the chaff and other
small and light impurities from the grain, the grain passes through the sieve or
apron 16, falls onto a second or finer inclined sieve 18 where it is operated and
blown upon by the fan 17, the larger and heavier grain passes down the spout 19
into receiving bags, and the lighter grains are blown further and pass down the
spout 20 and the chaff and light impurities are driven out by the fan 17 onto a
platform 21, whence it is removed or passes to any receptacle provided for it.
The whole apparatus is enclosed in a box or casing similar to an ordinary thrash-
ing machine.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
(1) The general construction, arrangement, and combination of parts constituting
the improved apparatus for thrashing, winnowing, and separating grain from straw,
chaff, and other impurities, as herein described, and substantially as illustrated
by the annexed drawings.
(2) The combination with a thrashing machine of the oscillating sieves 6 and 11,
levator buckets 14, sieves 16 and 18, and fan 17, as and for the purpose here
described, and substantially as illustrated by the annexed drawings.
Data: 09.1 A 100%
WILLIAM JOHN NEVIN,
By his Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.
WILLIAM JOHN NEVIN,
By his Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.