Improvements in or relating to Purifiers for Wheat and the like.
Year: 1894

page_text: Date of Application, 27th June, 1894
Complete Specification Left, 27th Mar., 1895-Accepted, 24th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Purifiers for Wheat and the like.
I, JOHN BEAL of 327 Penistone Road, Hillfoot, Sheffield, in the County of
York, Engineer and Millwright, do hereby declare the nature of this invention to
be as follows:-
a
The object of this invention is to separate wheat from its impurities such as dust,
rough substances, peas, Indian corn, barley, oats, straws, and the like by the
following means. A hopper is provided at the end of the machine into which the
dirty wheat is placed and fed by a worm elevator or garner regulated by a valve at
the bottom of the hopper. After leaving the hopper the substance falls into a valve-
controlled box and then on to a perforated tray of zinc or other metal forming
sieve to take out all the rough substances but enabling the wheat to pass through
the perforations, the tray being placed on a vibrating frame. The wheat and
smaller substances fall on another finer sieve held in the same vibrating frame to
which is imparted a variable motion by means of a movable crank which is
constructed to give any desired motion to the shaking frame. On the top of the
two sieves are trays of wood, zine or other suitable substance either loose or with
hinges so that there will be a space of at least four inches between the sieves and
the trays, and more where the wheat falls on to the sieves on shaking frame, so as
to allow the air from the suction fan to blow through the wheat as it passes on to
the sieve and throws the wheat as it drops on to the sieve into the upright suction
spout so that all the dust in the wheat is blown out before entering the upright
suction spout, which draws up the small wheat, chaff etc., the fan which is employed
being enclosed in an exhaust box having an ample air space on the top for delivering
air into it. The outlet of the fan in the machine is so arranged that it passes part
of its air into a spout through the main exhaust box and blows its own air again
through the wheat into the space between the trays and the sieve by which means
it blows all the dust to the hopper-end of machine where the wheat enters and thence
into a receiver under the hopper; and from thence to the dust hoppers which
contain conveying worm and the outlets which either deliver the dust into sacks or
spouts as might be most desired. On the top of the machine or enclosed exhaust
box a chamber is made so that the enclosed exhaust spout having a sliding valve to
regulate the air between the trays and the sieves can have the pressure of air
regulated for blowing through the wheat over the sieves. On the feed hopper end
of machine and coming from the air chamber at the top is another spout to relieve
the air pressure of the fan into the large exhaust box so that the fan relieves itself
by sucking the air out of the top chamber into the space where it is placed, and whatever
dust there is is delivered close on to the trays on the top of the sieve and hence into a
side box or worm box from which it is conveyed into the spouts which are placed
with valves so as to separate the various qualities of stuff sucked out by the fan.
On each side of the top air chamber is a spout for relieving the pressure of air
against the fan, allowing the clean air to escape. Across the body of the main
exhaust chamber are partitions, which form chambers for light dust to settle to
prevent it being drawn into the fan. In one of these chambers is a valve or slide
to regulate the power of the suction of the fan through the wheat, whereby wheat
and like substances are cleaned from dust and rough substances, such as peas, Indian
corn, barley, oats, straw and the like in the unclean wheat without the aid of a
dust-room, dust-collectors, cyclones and blast chimneys and confining the dust etc.

page_text: in the compact machine, whence it is delivered into sacks or like receptacles as may
be suitable.
Dated this 27th day of June 1801
W. P. THOMPSON & BOULT,
Agents for the Applicant.
Improvements in or relating to Purifiers for Wheat and the like.
I, JOHN BEAL of 327 Penistone Road, Hillfoot, Sheffield, in the County of
York, Engineer and Millwright, 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 :-
My invention relates to purifiers for wheat and the like, its object being to
separate the wheat from its impurities such as dust, rough substances, peas, Indian
corn, barley, oats, straw and the like with the aid of one or more fans, and sieves.
In apparatus constructed according to my invention, the impure wheat is carried by
any suitable means such as elevators, conveyors, or the like into a hopper or receiver
provided with any suitable feeding apparatus by which, the wheat is fed into a frame
containing a sieve with a plate below it. The sieve has a large mesh so as to
intercept the larger or rougher substances and divert them into a spout or
to any receptacle or place desired. Instead of having a plate below it
the sieve may have another and finer sieve beneath it to perform a further
sifting operation before delivering the wheat in the manner hereinafter indicated.
The said frame is suspended by four or more rods or otherwise and is vibrated
continually by either crank, or eccentric motion, shaking the finer substances
from the sieve to the lower plate which empties them into a sieve carried in
another larger vibrating frame within the hutch, the top of which frame is
covered or boarded from one side of the hutch to the other. The bottom part of
the frame is closed by either wood, zinc, or the like, for receiving the dust and
conveying it to a spout fixed underneath the frame and conducting it to either one
side or the other of the hutch, into sacks or like receptacles, while the clean wheat
is delivered at the tail end of the frame. Within the hutch I form three compart-
ments or chambers; the upper one is formed by a partition between the middle
chamber and the top of the hutch. The middle chamber or compartment is formed
by the aforesaid partition and the cover or boarding on the top of the large frame
whilst the bottom chamber is bounded by the top of the aforesaid large frame and
the bottom of the hutch. In the middle chamber arrange one or more fans
receiving air from the middle chamber and delivering it into the upper one and
thence down a delivery spout having a sliding door or shutter, on to the perforated
zinc, or sieve in the large vibrating frame, blowing through the wheat as it falls on
to that sieve or perforated zinc and carrying all the light substances through the
opening at the head of the large frame into the bottom chamber where they are
scraped or brushed, by chain link or suitable arrangements into a worm box, and
carried away by a worm conveyor to the side of the hutch into sacks or receptacles
as may be desired. In the top chamber 1 arrauge one or more spouts for relieving
the pressure of air; these are fixed either at the sides, or ends, or both; and I
also provide another spout delivering above the large frame boarding into the
middle chamber to relieve the fan. All spouts outside the hutch have sacks or the
like at their ends. When the fan is in motion fresh air is sucked up from a spout
at the tail of the hutch into a channel leading into the middle chamber, the dust and
air is drawn through the fan and forced down the delivery spout through the wheut
on the sieve in the large frame and out at the opening at the head of the large frame
into the bottom chamber to a worm-box and delivered into sacks or like receptacles, the

page_text: dust that settles in the middle chamber and is not drawn through the fan is received
into a fixed spout on the top of the vibrating frame and conveyed away as aforesaid.
In the middle chamber between the relieving spout and the fan I arrange a baffling
chamber having a sliding door or shutter, and a partition with opening therein
forming another chamber leading into the fan race by suitable inlet. This shutter
or door regulates the air sucked up the spout at the tail end of frame and it will be
seen bereinafter that the dust or chaff that is not blown out of the wheat is sucked
up at the tail end of frame and falls into the middle chamber.
In the accompanying drawings: Figure 1 is a side elevation of improved wheat-
cleaning apparatus constructed according to my invention. Figure 2 is
longitudinal section of the same.
rear elevation thereof.
战
Figure 3 is a front end elevation, and Figure 4 a
Like letters indicate like parts throughout the drawings.
A is a butch having an upper compartment B, middle compartment C and
bottom compartment D. Inside the hutch I arrange one or more fans E
exhausting from the chamber C and delivering into the chamber B and from
thence through the delivery spout F having a sliding door or shutter F¹, and
delivering into the large vibrating frame G having an opening G leading into the
chamber D. From the chamber B 1 construct a relieving spout H which empties
itself into chamber C to relieve the pressure of the fan, also one, or more spouts 1,.
either at the side or ends for relieving the pressure of air in the upper chamber.
At the end of the hutch I arrange a suction channel or spout K leading into a
channel L formed by partition L' and delivering into the chamber C; and
between the relieving spout H and the fan race El I form a battling chamber M
ith sliding door or shutter M' and opening M2 so as to regulate the quantity of
air sucked up by the fau E from the channel or spout K. In the said baffling
chamber MI form another chamber M³ by a partition M' and opening M³ and
delivering into suitable holes or openings E into the fan race E'. The course of
the air current set up by the fan is as follows:-Air is drawn up the suction
spout K down the channel L into the chamber C thence past the door M' through.
the opening M2 round the partition M and into passages at each side of the fan
case which communicate with the interior of the fan by openings E2, as aforesaid.
By adjusting the door M' the quantity of air drawn through the apparatus in this
current can be suitably regulated. On the outside of hutch A I suspend a frame O by
vibrating rods O' and within the said frame OI place a large mesh sieve 02 which
empties its rough substances into a spout O³ the finer substances falling on a
plate O (for which as aforesaid a fine sieve may be substituted) which empties its
coutents on to the sieve G2 carried in the large frame G; continual vibration of
the frame is obtained with a connecting rod O' attached to the frame O and. to
an eccentric or crank motion and shafting O. On the large frame G I arrange
suitable valve G₁ for regulating the air. On the bottom of the frame which is .
closed by the partition G³ I attach a spout G for carrying the small seeds or the
like to either one side of the hutch A or the other. The frame covering or
boarding Go affixed to the top of frame G and extending to the inner sides of
the hutch A forms the partitions between the chambers C and D. On top of
frame GI affix a spout Go for carrying chaff dust and the like to either side of the
hutch A as desired. The frame G is suspended by the vibrating rods G7 and is
also continually vibrated by the rod G' from shaft P by an eccentric or variable
crank motion P. In the bottom chamber I arrange link or suitable gear D' with
creepers D' for collecting dust into the worm box R whence it is conveyed to the
outside of the frame by worm conveyor R' into suitable spouts or sacks. The
openings or spouts S are for relieving the pressure of air in the said chamber D.
The wheat and impurities are delivered in company into the frame O wherein the
rougher impurities are separated out into the channel O³ the fiuer substances
falling from the plate O into the large frame G upon the perforated zinc or
sieve G2 where they meet the air from the spout F which blows the chaff and
light substances through the opening G8 of the large frame G into the bottom

page_text: chamber D where the scrapers or creepers D2 take them to the conveyor. The
finer waste or seeds blown through the perforated zine or sieve G2 on to the
bottom G³ of the frame G is carried away by the spout G at the under side of
frame while the wheat is delivered at the tail end of the sieve to the lower part of
the spout K and comes in contact with the air which is sucked up by the fan and
all lighter particles are taken up with the air through the upper part of spout K
and settled in the middle chamber C whence all the impurities are conducted away
by the spout G' fixed on the top of the frame.
I may use canvas, indiarubber, sheeting or like substances for conveying the
wheat and impurities from one part of my machine to another or to make the
vibrating joints air-tight if necessary, and in the large frame I employ leather
indiarubber or the like as hinges for the valves.
I do not limit my invention to the particular arrangements and constructions
herein before set forth, which may be varied without departure from my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In apparatus for separating impurities from grain or the like the employment
in combination of three chambers such as B C and D and a vibratory sieve such
as G2 substantially as and for the purpose hereinbefore described.
2. The combination with apparatus such as is claimed in the first claim of a fan
such as E an air-spout such as F and means for regulating the flow of air through
that spout substantially as and for the purpose herein before described.
3. In apparatus for separating impurities from grain or the like the combination
with two chambers such as B and C of a relieving spout such as II serving
substantially as and for the purpose hereinbefore described.
4. In apparatus for separating impurities from grain or the like the combination
with two chambers such as B and C of a baffle chamber such as M and means for
regulating the flow of air into the baffle-chamber substantially as and for the purpose
bereinbefore described.
5. In apparatus for separating impurities from grain or the like a chamber such
as B provided with one or more relieving spouts such as I substantially as and for
the purpose herein before described and illustrated in the accompanying drawings.
6. In apparatus for separating impurities from grain or the like a chamber such
as D in the lower part thereof having relief openings such as S substantially as and
for the purpose herein before described and illustrated in the accompanying
drawings.
7. Apparatus for separating impurities from grain or the like constructed
arranged and operating substantially as hereinbefore described with reference to
the accompanying drawings.
Dated this 26th day of March 1895