Improvements in Separating Dust from Chaff, Corn, Seeds, and other similar Produce.
Year: 1890

page_text: Date of Application, 23rd Sept., 1890
Complete Specification Left, 23rd June, 1891-Accepted, 29th Aug., 1891
TRWYDIUNAL SPECIFICATION.
Improvements in Separating Dust from Chaff, Corn, Seeds, and
other similar Produce.
We JOHN ARTHUR BROOKFIELD of No. 25 Change Alley Sheffield in the
County of York, Merchant and ARTHUR EDWARD WHITEHEAD of No. 25 Change
Alley Sheffield in the County of York Merchant do hereby declare the nature of
this invention to be as follows:-
The object of this invention is the separating of dust and other impurities
from the food (which is so injurious to horses cattle sheep and fowls) such as
chaff, corn, seeds and other similar produce.
In carrying out this invention we fix to a chaff cutting machine which is encased
in wood or other suitable material an exhaust fan on a suitable place between
bearings on the stand or legs of the said machine, the said fan being worked from
a pulley keyed or otherwise fastened on the cutter wheel shaft outside the encased
portion of the machine.
The action of this improvement is as follows.
When the aforesaid pulley is worked which may be done by hand or other
power the fan is similarly worked by a band attached to the aforesaid pulley
which fan exhausts the dust and other like particles by means of a pipe to any
suitable place away from the chaff during cutting, the chaff being prevented from
being exhausted with the dust and other like particles by means of a screen fixed
at the entrance of the fan; the whole of the machine with the exception of the
pulley and band being encased with wood or other suitable material prevents the
dust and chaff during the working of the machine from being circulated about
the room.
We may also combine with the aforesaid machine a sifter for corn, seeds, and
other similar produce, the sifter being a funnel made of suitable material placed
on the top of the machine in close proximity to the cutter wheel so that when
the corn is put into the aforesaid funnel during the descent of the corn into a box
or receptacle the dust which is lighter than the corn is exhausted by means of the
aforesaid fan.
When the sifter is not in use it may be closed off by means of a damper or, this
damper may be so formed as to sift the larger from the smaller grains.
Dated this 22nd day of September 1890.
JOHN ARTHUR BROOKFIELD.
ARTHUR EDWARD WHITEHEAD.

page_text: COMPLETE SPECIFICATION.
Improvements in Separating Dust from Chaff, Corn, Seeds, and
other similar Produce.
We, JOHN ARTHUR BROOKFIELD, and ARTHUR EDWARD WHITEHEAD, both
of 25 Change Alley Sheffield in the County of York, Merchants, 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 :-
The object. of this invention is the separating of dust and other like foreign
matter from chaff, corn, seeds, and other like produce or cattle food, such impurities
being injurious to horses and other animals and fowls.
The invention is illustrated in the annexed sheet of drawings, which represents
a chaff cutter with an exhausting fan attached, and arranged to be driven by the
fly wheel and intermediate strap or belt or chain, and a seed hopper and sifter.
In carrying out our invention, we attach to a chaff cutting machine of the usual
or ordinary construction such as that shown, and which is encased with wood or
other covering A, so as to form a chamber or enclosed interior, an exhaust fan B,
in a suitable position for the purpose required, such as upon the legs C, and so
that it can be driven by a band, chain, or the like from a pulley or from the hand
wheel D, upon the cutter shaft E, or we may use a toothed pinion upon the fan
and gear a large diameter toothed wheel upon the cutter shaft into it, or use
other equivalent direct gear.
The fan B, is so situated that the cut chaff is brought under its influence by
falling down a shoot indicated by the dotted lines F, and the dust which is
separated from the chaff in its passage down the shoot, is drawn by the suction
of the fan into the discharge pipe G, by which it may be carried outside the
building or elsewhere.
To prevent the cut chaff or other cut produce being carried away by the suction
of the fan, we use a movable screen H, placed at the entrance of the fan B, and
to regulate the power of the exhaust we use a regulator I, by which the entrance
of air into the interior may be controlled.
To sift, size, and cleanse coin, and other grain and seeds, we combine with the
above described machine, a funnel or hopper J, with a short extension or shoot K,
fitted in the interior with one or more inclines indicated by dotted lines, down
which the corn or other seeds will roll, and become separated from dust and the
like, and will then fall in such separated condition in front of the fan, by which
the dust and refuse will be carried off.
At the bottom of the hopper we fix a shuttle or slide S to close the opening
when not required, and we may substitute sieves of any desired mesh for sizing
the grain. The grain or seeds are caught in a drawer L, or other receptacle
placed underneath, and in the case of chaff, it may after passing down the shoot F,
either pass through an opening made in the floor upon which the machine stands,
or by removing a front plate M, it may be allowed to run out upon the same floor,
or it may be caught in the drawer L, as preferred.
We are aware that an exhausting fan has been used to separate the dust from
chaff and the like, and we therefore desire it to be understood that we do not claim
such application broadly, we are also aware of West's Patent No. 527588 and we
do not claim anything therein contained and described, but, having now particularly
described and ascertained the nature of our invention, and the manner in which
it may be carried into practice, we declare that what we do claim, is :—
1. The improvements in separating dust and other deleterious matter from chaff
during the process of cutting, and consisting in the arrangement of an exhaust
fan B, provided with a screen H, (to prevent the escape of chaff,) fixed to or

page_text: against the side of an enclosed chaff cutter, and exhausting directly into the
enclosed interior, the fan being so placed that it can be driven directly from the
cutter shaft E, a shoot F, and a draught regulator I, substantially as herein before
described and illustrated.
2. The improvements in the separation of dust and other matters from grain or
seeds consisting in the combination with the above described chaff cleaning.
arrangements as claimed in Claim 1, of a funnel or hopper J, having a shuttle S,
and a shoot K, provided with one or more inclines; or with a sieve in place of the
shuttle S, when required for sifting, the said hopper being so placed that the
falling grain will pass through the draught of the exhaust, substantially as herein-
before described and shown.
Dated the 001
1001
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicants.